Method for controlling refrigerator compressor and device for implementing thereof

FIELD: lighting; heating.

SUBSTANCE: invention proposes a method for controlling operation of a refrigerator compressor whereby thawing is effected when the temperature inside the refrigerator reaches a predetermined thawing temperature. Refrigerating capacity of the compressor mounted inside the refrigerator is changed depending on the temperature inside the refrigerator by regulating the direction of rotation of the compressor. The refrigerating capacity of the compressor is increased by rotating the compressor in one direction and is decreased by rotating the compressor in another direction, this second direction being reverse to the first one. Prior to thawing the compressor is repeatedly rotated in the second direction and stopped until the predetermined thawing temperature is achieved inside the refrigerator. After thawing the compressor is rotated in the first direction until the predetermined temperature is achieved and in order to maintain this predetermined temperature the compressor is periodically stopped or rotated in the second direction. A device for controlling operation of a refrigerator compressor includes a microcomputer, a working frequency converter, a rotation signal generating unit and a unit for measuring temperature inside the refrigerator. The working range of the temperature measuring unit is predetermined depending on the compressor rotation direction.

EFFECT: reduced power consumption by a refrigerator; increased capacity and precise temperature control of the refrigerator.

 

The present invention relates to a refrigerator, and more particularly to a method and apparatus for controlling operation of the compressor of the refrigerator.

In the General case of freezing or cooling unit controls the external and internal temperature by controlling the high-temperature refrigerant under high pressure and circulating in the refrigerating cycle. Freezing or cooling unit includes refrigerator, air conditioner, etc.

Now, with reference to figure 1, will be described conventional refrigerator.

Figure 1 shows the structure that implements the cooling cycle of the refrigerator in accordance with the prior art. As shown in figure 1, the refrigeration cycle of a refrigerator means: compressor 11 for compressing refrigerant; a condenser 12 to the heat of the refrigerant that is compressed by the compressor 11; a drying chamber 13, set by the capacitor 12 and removes moisture from the refrigerant; an electromagnetic valve 14 connected to the drying chamber 13 and the refrigerant tube and controlling the opening and closing of the tube refrigerant; a regulating valve 15 connected to the electromagnetic valve 14 and reduces the pressure of refrigerant discharged from the electromagnetic valve 14; and the evaporator 16 is connected to the regulating valve 15 and Kuusamo advanced refrigerant for generate cooling air to absorb heat, contained in the food product stored in the refrigerator or freezer.

The evaporator 16 is connected to the compressor 11 through the refrigerant tube. Namely, the refrigeration cycle of a refrigerator is implemented by the flow coming from the compressor 11 through the condenser 12, the drying chamber 13, the electromagnetic valve 14, valve 15, the evaporator 16 back into the compressor 11.

The compressor 11, the condenser 12, the drying chamber 13, the electromagnetic valve 14, valve 15, the evaporator 16 and again the compressor 11 are connected to each other through the refrigerant tube.

Now will be described the refrigeration cycle of a refrigerator.

First, the microcomputer (not shown) provides a measurement of the temperature of the refrigerating chamber and the freezing chamber of the refrigerator. If the temperature of the refrigerating chamber and the freezing chamber is higher than the set temperature, the microcomputer controls the cooling cycle to generate cooling air.

The compressor 11 compresses the injected refrigerant under microcomputer control to generate high-temperature refrigerant under high pressure. The refrigerant generated in the compressor 11, is produced in the condenser 12 through the refrigerant tube.

The capacitor 12 generates heat of the refrigerant introduced from the compressor 11, and then releases it to the drying chamber 13.

Drying chamber 13 removes moisture remaining in the refrigerant passed through the condenser 12, and releases the refrigerant control valve 15 through the solenoid valve 14.

Regulating valve 15 allows the expansion of the refrigerant under high pressure and protexia through the electromagnetic valve 14, and adjusts the refrigerant, the current at the same speed, turning it into a state in which that easily evaporates and releases it into the evaporator 16.

The evaporator 16 receives the refrigerant from the valve 15 and delivers the cooling air in the freezing chamber and the refrigerating chamber to absorb heat in the freezing chamber and the refrigerating chamber.

Due to the absorption of heat in the freezing chamber and the refrigerating chamber evaporation of the cooling air. The evaporated refrigerant is introduced again into the compressor 11, which completes the implementation of the cooling cycle.

However, the compressor used for a refrigeration cycle of a refrigerator, rotates (activated) in only one direction, constantly generating the maximum output power (peak performance for freezing). That is, when the temperature of the refrigerator is stable, the maximum output power is not required, but since the compressor is rotating in one direction only, rent is but generating the maximum output power, power consumption of the refrigerator is increased.

Therefore, one object of the present invention is to develop a method and device for controlling operation of the refrigerator, providing compressor installed in a refrigerator, with optimal efficiency due to changes in the cooling capacity of the compressor by controlling the direction of rotation of the compressor.

Another objective of the present invention is to develop a method and device for controlling operation of the refrigerator, providing refrigerator compressor with reduced power consumption of the refrigerator and high-performance refrigerator for freezing and/or cooling.

Another objective of the present invention is to develop a method and device for controlling operation of the refrigerator, providing the ability to accurately control the temperature of the refrigerator.

To achieve these and other advantages in accordance with the present invention, which embodiment is described here in a broad sense, a method for controlling operation of the refrigerator compressor, namely, that change the cooling capacity of the compressor is installed in the refrigerator, by controlling the direction of rotation of compre the litter.

In order to achieve the above objectives, it is also a method for controlling operation of the refrigerator compressor, namely, that change the cooling capacity of the compressor is installed in the refrigerator, by controlling the direction of rotation of the compressor in accordance with the load status of the refrigerator, the cooling capacity of the compressor is increased when the compressor rotates in one, the first direction and decreases when the compressor rotates in the opposite, second direction.

In order to achieve the above objectives, is also proposed a device for controlling operation of the refrigerator compressor, comprising: a microcomputer for signal select to select the direction of rotation of the compressor in accordance with the operation mode of the refrigerator, when the user selects the operation mode of the refrigerator; the inverter operating frequency to convert the operating frequency of the compressor in accordance with the temperature in the refrigerator; and a unit signal generating rotation in the first direction or the second direction to the rotation direction of the compressor based on the select signal and for varying the speed of rotation in the direction of rotation of the compressor based on the converted frequency.

The above and other objectives, characteristics, especially the spine and advantages of the present invention will become better understood from the following detailed description of the present invention, when viewed in conjunction with the attached drawings.

Hereinafter the invention will be explained in more detail with reference to the accompanying drawings, constituting an integral part of the description and illustrate embodiments of the invention, in which:

figure 1 - design, realizing the cooling cycle of the refrigerator in accordance with the prior art;

figure 2 - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the first embodiment of the present invention;

figure 3 - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with a second embodiment of the present invention;

4 is a block diagram of a device for controlling operation of the refrigerator compressor in accordance with a second embodiment of the present invention;

5 is a block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with a third embodiment of the present invention;

6 is a block diagram of a device for controlling operation of the refrigerator compressor in accordance with a third embodiment of the present invention;

7 is a block diagram of the operational sequence of the method of controlling the operation of compressor x is Hladilnika in accordance with the fourth embodiment of the present invention;

Fig is a block diagram of an apparatus for controlling operation of the refrigerator compressor in accordance with the fourth embodiment of the present invention;

Fig.9 is a block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the fifth embodiment of the present invention;

figure 10 - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the sixth embodiment of the present invention;

11 is a block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the seventh embodiment of the present invention;

Fig is a graph showing the relationship between the guaranteed amount of the refrigerant and the temperature of the evaporator according to 11;

Fig - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the eighth embodiment of the present invention;

Fig - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the ninth embodiment of the present invention;

Fig - block diagram of the operational sequence of the method of controlling the operation of the compressor of a refrigerator in accordance with D. satim of the embodiment of the present invention;

Fig - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the eleventh embodiment of the present invention;

Fig - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the twelfth embodiment of the present invention;

figa and 18V - sensor for detecting the direction of rotation of the compressor is rotating in the first direction or the second direction in accordance with the twelfth embodiment of the present invention; and

Fig - block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the thirteenth embodiment of the present invention.

Now will describe the method and device for controlling operation of the refrigerator, providing compressor installed in a refrigerator, with optimal efficiency due to changes in the cooling capacity of the compressor by controlling the direction of rotation of the compressor in accordance with a preferred variant implementation of the present invention.

Option 1 implementation

Figure 2 presents the block diagram of the operational sequence of the method of controlling the operation of the compressor is of holodilniki in accordance with the first embodiment of the present invention

First, when the user selects the operation mode of the refrigerator, repeat the process of rotation of the compressor of the refrigerator in the second direction (reducing cooling power) and stop of the compressor. For example, when the user selects the operation mode of the refrigerator (step S1), the refrigerator compressor first rotate in the first direction to increase the cooling power in order to quickly reduce the temperature inside the refrigerator up to a predetermined temperature, and then rotate the compressor in the second, opposite the first direction for each predetermined period of time to maintain the set temperature. In this case, when the compressor is rotating in the second direction for each predetermined period of time, the cooling capacity of the compressor is reduced (step S2). The compressor is a two-stage compressor with modulation of the cooling capacity (DMOS-compressor). When DMOS-compressor rotates in the first direction, the stroke is lengthened, increasing the cooling capacity of the compressor, and when DMOS-compressor rotates in the second direction, its course is shortened, reducing the cooling capacity of the compressor. When the compressor rotates in the first direction, its power consumption increases, and when the compressor rotates in the second direction is the situation, its power consumption is reduced.

After that, the temperature sensor provided in the refrigerator, measures the temperature inside the refrigerator, and if the temperature inside the refrigerator is identical to a predetermined temperature thawing, then perform the defrosting operation (steps S3 and S4).

When the defrosting operation ends (step S5), the refrigerator compressor is rotating in the first direction (step S6), quickly reducing the temperature inside the refrigerator, which has risen in accordance with the defrosting operation to a predetermined temperature, and then perform the rotation operation of the compressor in the second direction during each specified time period to maintain the current status of the temperature inside the refrigerator (step S7).

Namely, in the first embodiment of the present invention to quickly reduce the temperature inside the refrigerator, which rose during the defrosting operation, the compressor rotates in the first direction to increase the cooling power after the defrosting operation of the refrigerator. When the temperature inside the fridge quickly reaches the set temperature in accordance with the increased cooling capacity, the compressor rotates in the second direction for each predetermined period of time to maintain the set temperature.

<> Therefore, in the first embodiment of the present invention, when the temperature inside the refrigerator becomes high when the defrosting operation, rotate the compressor in the first direction after the defrosting operation to supply the maximum amount of cooling air in the refrigerator, and then rotate the compressor in the second direction for each predetermined period of time to ensure a rapid reduction in temperature inside the fridge after thawing, that does not give food to spoil.

Option 2 implementation

Now, with reference to figure 3, will be described a method of controlling a compressor of a refrigerator in accordance with a second embodiment of the present invention.

Figure 3 presents the block diagram of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with a second embodiment of the present invention.

First, when the user selects the operation mode of the refrigerator (step S11), choose the direction of rotation of the compressor in accordance with a preset flow volume of the cooling air corresponding to the selected operation mode of the refrigerator, and convert the operating frequency of the compressor in accordance with the temperature inside the fridge.

For example, when the user is the user sets the mode, quick freeze, flow of the cooling air should be the maximum. Thus, when the amount of supply of the cooling air is maximum, the compressor rotates in the first direction, and when the temperature inside the refrigerator is higher than a preset standard temperature (e.g., 4° (C) in the fridge, increase the operating frequency.

Meanwhile, if the user sets the mode weak freezing, the flow of the cooling air should be minimal. Thus, when the amount of supply of the cooling air is minimal, the compressor rotates in the second direction, and when the temperature inside the refrigerator becomes equal to the preset reference temperature or not to exceed this temperature, reduce the operating frequency. Namely, the compressor rotates in the first direction or the second direction in accordance with the flow volume of the cooling air in the refrigerator, and thus control of the rotation speed of the compressor in each direction is carried out on the basis of the changed operating frequency (steps S12-S14). After selecting the direction of rotation of the compressor control compressor carried out so that the supplied cooling air in the refrigerator, so it can precisely control the temperature inside the fridge.

Now, with reference to figure 4, it will be described what about the device operation control of the compressor of a refrigerator in accordance with a second embodiment of the present invention.

Figure 4 shows the block diagram of the device for controlling operation of the refrigerator compressor in accordance with a second embodiment of the present invention.

As shown in figure 4, the device for controlling operation of the refrigerator compressor includes: a sensor 13 temperature, designed to measure the temperature inside the refrigerator; the microcomputer 12, intended to signal to select the direction of rotation of the compressor, which corresponds to the flow volume of the cooling air in accordance with the selected mode, when the user selects the operation mode of the refrigerator, and for issuing a control signal to change the operating frequency of the compressor in accordance with the temperature inside the refrigerator, which is measured by the sensor 13 temperature; the Converter 11 of the operating frequency to convert the operating frequency, used for receiving power given from block 10 power, and to convert the operating frequency of the compressor in accordance with the control signal; and a unit 14 generate a signal of the rotation in the first direction or the second direction, designed to control the compressor on the basis of the operating frequency, which is selected Converter 11 of the operating frequency, and signal selection.

Will now be detailed about isana device to control the operation of the compressor of the refrigerator.

First, when the user selects the operation mode of the refrigerator, the microcomputer 12 sends a select signal (select signal direction of rotation) in unit 14 generate a signal of the rotation in the first direction or the second direction, making it based on the flow volume of the cooling air corresponding to the selected operating mode.

For example, if the desired maximum cooling capacity, the microcomputer outputs a signal to control the operation of determining a maximum rotation speed of the compressor, the inverter 11 of the operating frequency, and the signal selection rotation in the first direction, causing rotation of the compressor in the first direction, the unit 14 generate a signal of the rotation in the first direction or the second direction.

Meanwhile, if the desired minimum cooling capacity, the microcomputer 12 outputs a signal to control the operation of driving the minimization of the rotation speed of the compressor, the inverter 11 of the operating frequency, and the select signal of the rotation in the second direction, causing rotation of the compressor in the second direction, the unit 14 generate a signal of the rotation in the first direction or the second direction.

The Converter 11 of the operating frequency changes the operating frequency of the compressor to change the rotation speed of the compressor, on the basis of the signal is Board operation and generates a modified operating frequency in unit 14 generate a signal of the rotation in the first direction or the second direction.

For example, the inverter 11 of the operating frequency increases the operating frequency of the compressor to maximize the speed of rotation of the compressor, on the basis of the control signal work, contributing to the maximization of the rotational speed of the compressor, and provides increased operating frequency in unit 14 generate a signal of the rotation in the first direction or the second direction.

Meanwhile, the inverter 11 of the operating frequency reduces the operating frequency of the compressor to minimize the rotation speed of the compressor, on the basis of the control signal work, contributing to minimize the rotation speed of the compressor and produces a reduced operating frequency in unit 14 generate a signal of the rotation in the first direction or the second direction.

Unit 14 generate a signal of the rotation in the first direction or the second direction operates the drive unit on the basis of the operating frequency issued from the transducer 11 of the operating frequency, and the select signal used to select the direction of rotation of the compressor.

For example, the unit 14 to generate a signal of the rotation in the first direction or the second direction provides the rotation of the compressor in the first direction on the basis of the select signal of the rotation in the first direction, causing rotation of the compressor in the first direction, uvelichivaet the rotation speed of the compressor in the first direction on the basis of the increased operating frequency.

Meanwhile, the unit 14 generate a signal of the rotation in the first direction or the second direction provides the rotation of the compressor in the second direction on the basis of the select signal of the rotation in the second direction, causing rotation of the compressor in the second direction, and reduces the rotation speed of the compressor in the second direction on the basis of the reduced operating frequency.

Therefore, in the second embodiment of the present invention, by selecting the direction of rotation of the compressor in accordance with the operation mode of the refrigerator is selected by the user, and converting the operating frequency of the compressor based on the temperature inside the refrigerator can provide precise control of the temperature inside the fridge.

Option 3 implementation

Now, with reference to figure 5, will be described a method of controlling a compressor of a refrigerator in accordance with a third embodiment of the present invention.

Figure 5 presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with a third embodiment of the present invention.

First, when the user selects the operation mode of the refrigerator (step S21), and determines whether the selected mode of operation energy saving clip frame the work (step S22).

If the user selects the power-saving operation mode, the compressor rotates in the second direction (step S23). At this time, if the temperature inside the refrigerator is higher than a pre-specified standard temperature (i.e. temperature αthat is previously set by a user, for example, 4° (C), the compressor rotates in the first direction (steps S24 and S25). Namely, when the user selects an energy-saving mode occurs compressor is driven in the second direction to reduce power consumption.

Meanwhile, when the user selects the standard mode and not power saving mode, the compressor rotates in the first direction (step S26). In this case, if the temperature inside the refrigerator is lower than a pre-specified temperature (β), the compressor is rotated in the second direction (steps S27 and S28).

Now, with reference to Fig.6, will be described device controlling operation of the refrigerator compressor in accordance with a third embodiment of the present invention.

Figure 6 shows the block diagram of the device for controlling operation of the refrigerator compressor in accordance with a third embodiment of the present invention.

As shown in Fig.6, the device for controlling operation of the refrigerator compressor in accordance with a third variations is that the implementation of the present invention includes: unit 15 mode selection, for selecting the energy saving mode or standard mode of operation in accordance with a user request, and also to signal mode selection in accordance with the selected mode; the sensor 13 temperature, designed to measure the temperature inside the refrigerator; the microcomputer 12, intended for issuing control signals to control the direction of rotation of the compressor on the basis of the select signal mode of the block 15 mode selection, and signal temperature measurement; and a unit 14 generate a signal of the rotation in the first direction or the second direction, designed to receive power given from the block 10 power, and to rotate the compressor in the first direction or the second direction in accordance with the control signal.

Now is the detailed description of the operation of the device to control the operation of the compressor of a refrigerator in accordance with a third embodiment of the present invention.

First, when the user selects an energy-saving mode of the refrigerator, block 15 mode selection signal mode corresponding to the energy saving operation mode, the microcomputer 12.

The microcomputer 12 sends a signal to control the operation of causing the compressor to power sharehouses mode, in the unit 14 generate the signal of the rotation in the first direction or the second direction in accordance with the select signal mode is issued from the block 15 mode selection.

Unit 14 generate a signal of the rotation in the first direction or the second direction generates a signal of the rotation in the second direction, causing rotation of the compressor in the second direction, in accordance with the control signal from the microcomputer 12. Then the compressor rotates in the second direction in accordance with the signal of the rotation in the second direction and delivers a small amount of the cooling air in the refrigerator. At this time, the sensor 13 measures the temperature the temperature inside the refrigerator and sends a signal measuring the temperature corresponding to the measured temperature, the microcomputer 12.

The microcomputer 12 compares the measured temperature with a predetermined temperature (α), and if the measured temperature is higher than a pre-specified temperature (α), the microcomputer 12 sends a signal to control the operation of causing the rotation of the compressor in the first direction in the unit 14 generate a signal of the rotation in the first direction or the second direction.

Unit 14 generate a signal of the rotation in the first direction or the second direction generates a signal of the rotation in the first direction, causing the decrease of the compressor in the first direction, in accordance with the control signal, and the compressor rotates in the first direction according to the signal of the rotation in the first direction.

During the drive unit in the first direction to measure the temperature inside the refrigerator, and if the temperature inside the refrigerator is lower than a pre-specified temperature (i.e. temperature βthat is previously set by a user, for example, 6° (C), the compressor is rotated in the second direction.

Therefore, in the third embodiment of the present invention, when the user selects the power-saving operation mode, the compressor rotates in the second direction, and therefore it is possible to reduce power consumption.

Option 4 implementation

Now, with reference to Fig.7, you will learn how to control the operation of the refrigerator compressor in accordance with the fourth embodiment of the present invention.

Figure 7 presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the fourth embodiment of the present invention.

First, when the user selects the operation mode of the refrigerator uses a compressor of the refrigerator (step S31), measure the temperature inside the refrigerator (step S32), and then in accordance with the selected temperatureinduced refrigerator - choose the direction of rotation of the compressor (step S33).

For example, if the measured temperature inside the fridge is not lower than a predetermined standard temperature (e.g., 4° (C), the compressor rotates in the first direction, and if the measured temperature inside the refrigerator is below a predetermined standard temperature (e.g., 4° (C), the compressor rotates in the second direction.

When the compressor rotates in the first direction (step S35), the value of the current supplied to the compressor, find and compared with a preset reference current value (steps S34-S36). By comparing the current value supplied to the compressor, with a preset reference current value, it is possible to detect the direction of rotation of the compressor.

If the detected current value is larger than the reference current value (for example, 0,6), this means that the direction of rotation of the compressor is correct. Thus, when the compressor rotates in the first direction if the detected current value is larger than the reference current value, then continue to rotate the compressor in the first direction (step S37).

If the detected current value is smaller than the reference current value, this means that the direction of rotation of the compressor is incorrect. Thus, if the detected current value is smaller than the reference value of the Oka, the compressor is disconnected (step S38), and the process returns to step S31 compressor operation.

Meanwhile, when the compressor rotates in the second direction, the value of the current supplied to the compressor, find and compared with a preset reference current value (steps S39 and S40).

If the detected current value is smaller than the reference current value, this means that the direction of rotation of the compressor is correct. When the compressor rotates in the second direction if the detected current value is smaller than the reference current value, then continue to rotate the compressor in the second direction (step S41).

If the detected current value is larger than the reference current value, this means that the direction of rotation of the compressor is incorrect. When the compressor rotates in the second direction if the detected current value is larger than the reference current value, the compressor is shut off (step S42), and the process returns to step S31 compressor operation.

Accordingly, in the fourth embodiment of the present invention, when the compressor cycles by determining the direction of rotation of the compressor in accordance with the temperature inside the refrigerator or in accordance with the operation mode of the refrigerator, the fact correctly or incorrectly defined n the Board of rotation of the compressor to its normal operation is determined in accordance with the current value, supplied to the compressor, and the reference current value, resulting in accurately ensures the normal operation of the compressor.

For example, if the compressor must rotate in the first direction, and rotates in the second direction due to errors generated in the compressor, the actual direction of rotation of the compressor accurately detected on the basis of the current value supplied to the compressor, which allows to ensure the normal operation of the compressor.

On Fig shows the block diagram of the device for controlling operation of the refrigerator compressor in accordance with the fourth embodiment of the present invention.

As shown in Fig, the device for controlling operation of the refrigerator compressor in accordance with the fourth embodiment of the present invention includes: a block of 16 detection current that is designed to detect the current supplied to the compressor (COMP); sensor 13 temperature, designed to measure the temperature inside the refrigerator; the microcomputer 12, intended to signal to control the operation of the compressor in accordance with the temperature inside the refrigerator, as measured by the sensor 13 temperature, for comparing the current value detected by the block 16 of the detection current and the reference current value, and for issuing a signal to control the operation of driving the compressor; and the unit 14 generate a signal of the rotation in the first direction or the second direction that is designed to generate a signal of the rotation in the first direction signal or the rotation in the second direction in accordance with the control signal from the microcomputer 12, and to supply the generated signal to the compressor.

First, when the user selects the operation mode of the refrigerator, the microcomputer 12 cycles the compressor of the refrigerator. Then the sensor 13 measures the temperature the temperature inside the refrigerator and sends a signal measuring the temperature corresponding to the measured temperature, the microcomputer 12.

If the measured temperature inside the refrigerator is higher than a pre-specified standard temperature, the microcomputer 12 outputs a signal to control the operation of causing the rotation of the compressor in the first direction in the unit 14 generate a signal of the rotation in the first direction or the second direction. If the measured temperature inside the refrigerator is lower than the predefined standard temperature, the microcomputer 12 outputs a signal to control the operation of causing the rotation of the compressor in the second direction, the unit 14 generate a signal of the rotation in the first direction or the second direction.

Unit 14 generate a signal of the rotation in the first direction or the second direction provides the rotation of the compressor in the first direction or the second direction in accordance with the control signal from the microcomputer 12. Then in block 16 of the detection current detects the current applied to the compressor, and supplies the detected current value in the microcomputer 12.

The microcomputer 12 detects correctly identified the direction of rotation of the compressor by comparing the detected current with a reference current value, and ensures the continued rotation of the compressor in the current direction of rotation or turning off the compressor. In this case, the value of the reference current is preferably set equal to 0.6 A. for Example, when the compressor is actually rotates in the second direction, the detected current value is smaller than the reference current value. When the compressor is actually rotates in the first direction detected current value is larger than the reference current value.

Therefore, in the fourth embodiment of the present invention, by determining whether the compressor is properly in accordance with a specific direction of rotation is determined in accordance with the temperature inside the refrigerator by comparing the current value supplied to the compressor, and the current value predetermined during the experiment, it is possible to prevent deterioration of the operational efficiency of the cooling caused by malfunction of the compressor.

Option 5 implementation

Now, with links to Phi is .9, you will learn how to control the operation of the refrigerator compressor in accordance with the fifth embodiment of the present invention.

Figure 9 presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the fifth embodiment of the present invention.

First, when the user selects the operation mode of the refrigerator uses a compressor of the refrigerator and determine whether the direction of rotation of the compressor direction of rotation in the first direction or the second direction (steps S51 and S52).

If the current direction is the direction of rotation in the first direction, measure the temperature inside the refrigerator (steps S53 and S54), and then determines whether the selected current direction of rotation of the compressor in the first direction (step S55), because the temperature inside the refrigerator is higher than a pre-set temperature.

In accordance with a result of determination (step S55), if the selected first direction of rotation of the compressor (step S55), then support the rotation of the compressor in the first direction (step S56).

However, if the direction of rotation of the compressor is selected as the second direction of rotation, the compressor stops for a predetermined time (e.g., seven minutes) (step S57), and then by and is within a predetermined amount of time (seven minutes) (step S58) - rotate the compressor in the second direction (step S59).

In accordance with a result of determination (step S53), if the direction of rotation of the compressor is the second direction, then measure the temperature inside the refrigerator (step S60), and determine whether the selected current second direction of rotation of the compressor (step S61), because the temperature inside the refrigerator is lower than a pre-set temperature.

In accordance with a result of determination (step S61), if the selected second rotation direction of the compressor, that supports the second rotation direction (step S62).

However, if in accordance with the result of determination (step S61) is selected first direction of rotation of the compressor, the compressor stops for a predetermined time (e.g., seven minutes) (step S63), and then after a predetermined amount of time (seven minutes) (step S64) - rotate the compressor in the first direction (step S65).

Therefore, in the fifth embodiment of the present invention, once the working direction of rotation of the compressor in the first direction or the second direction when you want to change the direction of rotation of the compressor in accordance with a change in temperature inside the refrigerator, the compressor stops for a predefined period of time, healthy lifestyles change is the rotation of the compressor and will use it again due to what can be achieved reliability of the compressor.

Option 6 implementation

Now, with reference to figure 10, will be described a method of controlling operation of the refrigerator compressor in accordance with the sixth embodiment of the present invention.

Figure 10 presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the sixth embodiment of the present invention.

First, when the user selects the operation mode of the refrigerator uses a compressor of the refrigerator (step S71) and determine whether the direction of rotation of the compressor direction of rotation in the first direction or the second direction (step S72).

In accordance with a result of determination (step S72), if the direction of rotation of the compressor is the first direction (step S73), then choose the first operating range of the sensor temperature of the refrigerator (the stage set S74), and emit the signal to control the operation of the compressor in accordance with the first operating range (step S75). The first operating range of the sensor temperature of the refrigerator set approximately from 0.5°C to +0,5°in accordance with the experiment.

For example, when the compressor rotates in the first direction, temperature sensor only works when the temperature range sensor temperature the market is from 0.5° With up to +0.5°S, and outputs the enable signal of the compressor is in operation or disable it.

In accordance with a result of determination (step S72), if the direction of rotation of the compressor is the second direction, then choose the second operating range of the sensor temperature of the refrigerator (the stage set s76), and the operation of the compressor is carried out in accordance with the second operating range (step S77). The second operating range of the sensor temperature inside the refrigerator set at approximately-0.3°C to +0,3°in accordance with the experiment.

For example, when the compressor rotates in the second direction, temperature sensor only works when the temperature of the temperature sensor is -0,3°C to +0,3°S, and outputs the enable signal of the compressor is in operation or disable it.

Therefore, in the sixth embodiment of the present invention, the operating range of the temperature sensor for measuring the temperature inside the refrigerator set in accordance with the direction of rotation of the compressor, and the control signal compressor generate in accordance with the specified operating range. Accordingly, when the compressor rotates in the first direction or the second direction, it is possible to improve this parameter, as the number of on / off of the compressor according to the difference in hedor the production capacity, and because the temperature difference between the inside of the refrigerator is reduced, it is possible to reduce power consumption.

Option 7 implementation

Now, with links to 11, will be described a method of controlling operation of the refrigerator compressor in accordance with the seventh embodiment of the present invention.

Figure 11 presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the seventh embodiment of the present invention.

First, the user selects the mode of operation of the compressor of the refrigerator corresponding to the rotation in the second direction, and the compressor rotates in the second direction (step S81).

When the compressor rotates in the second direction, detects the temperature of the evaporator and the inlet temperature of the evaporator (step S82).

The temperature of the evaporator and the inlet temperature of the evaporator is compared, and if these temperatures are equal (step S83), the volume of refrigerant in the cooling cycle is calculated from the moment of equality (step S84), and ask this volume as a guaranteed volume of refrigerant of the compressor (step S85).

Now, with links to pig, will be described the relationship between the guaranteed amount of the refrigerant and the temperature of the evaporator of the refrigerator when the compressor rotates in the first direction and in the torus direction.

On Fig presents a graph showing the relationship between the guaranteed amount of the refrigerant and the temperature of the evaporator according to 11.

As shown in Fig, the amount of refrigerant when the compressor rotates in the second direction is larger than the amount of the refrigerant when the compressor rotates in the first direction, so that the amount of refrigerant when the compressor rotates in the second direction set as a guaranteed amount of refrigerant for the entire cooling cycle of the refrigerator.

Therefore, in the seventh embodiment of the present invention, because the amount of refrigerant when the compressor rotates in the second direction set as a guaranteed amount of refrigerant for the entire cooling cycle of the refrigerator, it is possible to eliminate the shortage of the refrigerant, which may occur when the compressor rotates in the first direction or the second direction, and thereby it is possible to improve the performance of the refrigerator to freeze.

Version 8 implementation

Now, with links to pig, you will learn how to control the operation of the refrigerator compressor in accordance with the eighth embodiment of the present invention.

On Fig presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with Ocimum of the embodiment of the present invention.

First, when the user selects the operation mode of the refrigerator, the microcomputer activates the compressor in accordance with the operation mode (step S91). In this case, when the ambient temperature (for example, the temperature on the outer rear surface of the refrigerator), measured with an external temperature sensor of the refrigerator is lower than 43°C, block generate signal rotation in the first direction or the second direction provides the rotation of the compressor in the second direction, reducing the cooling capacity to maintain a predetermined temperature (for example, 4° (C) inside the fridge (steps S92 and S93).

Meanwhile, when the ambient temperature measured by the external temperature sensor fridge, not lower than 43°C, block generate signal rotation in the first direction or the second direction provides the rotation of the compressor in the first direction (step S96), rapidly increasing the cooling capacity to maintain a predetermined temperature (for example, 4° (C) inside the fridge, and then the process returns to step A. In this case, the temperature 43°is the ambient temperature of the refrigerator to determine the direction of rotation of the compressor, and if the ambient temperature of the refrigerator is not lower than 43°C, the compressor is rotated in the first is upravlenii, and if the ambient temperature is lower than 43°C, the compressor is rotated in the second direction.

After that, when the temperature inside the refrigerator reaches a temperature preset by the user (step S94), the compressor stops (step S95). However, if the temperature inside the refrigerator reaches a predetermined temperature, the process returns to step S93.

Therefore, in the eighth embodiment of the present invention, when the external temperature of the refrigerator is lower than the predefined external temperature, the compressor rotates in the second direction, and if the external temperature of the refrigerator is lower than the predefined external temperature, the compressor rotates in the first direction. Due to this, it is possible to minimize the power consumption of the refrigerator and you can precisely control the temperature inside the refrigerator, ensuring its compliance with the temperature set by the user.

Version 9 implementation

Now will be described the method of controlling the operation of the refrigerator compressor in accordance with the ninth embodiment of the present invention.

On Fig presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the ninth embodiment of the present invention.

Sleep is Ala, when the user selects the operation mode of the refrigerator, the microcomputer activates the compressor in accordance with the operation mode of the refrigerator (step S101). In this case, if the temperature inside the refrigerator, measured by the temperature sensor is lower than 8°C, block generate signal rotation in the first direction or the second direction provides the rotation of the compressor in the second direction, reducing the cooling capacity to maintain the desired temperature inside the refrigerator (steps S102 and S103).

However, if the temperature inside the refrigerator, measured by the temperature sensor is not lower than 8°C, block generate signal rotation in the first direction or the second direction provides the rotation of the compressor in the first direction (step S106), rapidly increasing the cooling capacity to maintain a predetermined temperature (for example, 8° (C) inside the fridge, and then the process returns to step S102. In this case, the temperature 8°is the internal temperature of the refrigerator to determine the direction of rotation of the compressor, and when the internal temperature of the refrigerator is not lower than 8°C, the compressor rotates in the first direction, and if the internal temperature of the refrigerator is lower than 8°C, the compressor is rotated in the second direction.

After that, when the temperature value inside the refrigerator reaches temperature, preset by the user (step S104), the operation of the compressor is stopped (step S105). However, if the temperature inside the refrigerator reaches a predetermined temperature, the process returns to step S103.

Therefore, in the ninth embodiment of the present invention, when the internal temperature of the refrigerator is lower than a pre-specified internal temperature (8° (C), the compressor rotates in the first direction, thereby minimizing power consumption and can precisely control the temperature inside the refrigerator, ensuring its compliance with the temperature set by the user.

Version 10 implementation

Now, with links to pig, you will learn how to control the operation of the refrigerator compressor in accordance with the tenth embodiment of the present invention.

On Fig presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the tenth embodiment of the present invention.

First, when the user opens the fridge door, puts food in the fridge and closes the fridge door to keep the food product (load) in the refrigerator, door sensor (not shown) determines, opening the fridge door properly (step S111).

If two is refrigerator is not closed properly, then after a predetermined time (e.g., 1-2 minutes) - generate alarm sound signal open door (step S120). When the fridge door is closed properly, first measure the temperature inside the refrigerator (step S112 ().

After measuring the first temperature inside the fridge determine expired whether a predetermined time (for example, 5 minutes) (step S113).

When a predetermined time (for example, 5 minutes) has expired, measure a second temperature inside the refrigerator (step S114). The second temperature is the temperature inside the fridge after a predetermined amount of time after the first control temperature.

Then determine whether the difference between the first and second temperatures is the same as the predefined reference temperature (for example, 3° (C), or greater (step S115).

If the difference between the first and second temperatures is equal to 3°or more, then rotate the compressor in the first direction, providing the maximum amount of cooling air in the refrigerator to quickly reduce the temperature inside the refrigerator until the internal temperature of the refrigerator, predetermined by the user (step S119).

Meanwhile, if the difference between the first and second temperature does not exceed 3°C, the compressor rotates in the second direction during each saranathan period of time, maintaining an internal temperature of the refrigerator predetermined by the user (step S116).

After that, when the temperature inside the refrigerator and the temperature pre-set by the user, become identical, the compressor is stopped. However, if the temperature inside the refrigerator and the temperature pre-set by the user, not be identical, the compressor rotates in the first direction, providing the maximum amount of cooling air in the refrigerator to quickly reduce the temperature inside the refrigerator until the internal temperature of the refrigerator, predetermined by the user, and then, when the temperature inside the refrigerator and the temperature pre-set by the user, become identical, the operation of the compressor is stopped (steps S117 and S118).

Therefore, in the tenth embodiment of the present invention, when the load is introduced into the fridge, first the temperature inside the refrigerator is measured when the fridge door is closed, and when to expire a predetermined time, measuring a second temperature. After that, when the difference between the first and second temperatures is the same as the predefined reference temperature (for example, 3°C)or higher, the compressor rotates in the first direction, providing the maximum amount of Kladusa the air in the refrigerator so that he could handle the load, so it can be maintained at an optimal temperature.

11 implementation

Now, with links to pig, you will learn how to control the operation of the refrigerator compressor in accordance with the eleventh embodiment of the present invention.

On Fig presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the eleventh embodiment of the present invention.

First, the compressor inside the fridge rotate in the first direction or the second direction, keeping the temperature predetermined by the user inside the refrigerator (step S131). Real-time install, turned off the power supply in the fridge due to a power failure (step S132).

If the power to the refrigerator off, determine whether the supply is resumed food in the refrigerator within a predetermined amount of time (7 minutes - 100 minutes) (step S133). For example, when power supply to the refrigerator is disconnected due to a power failure, determine whether the time period of power loss the same as a predetermined time (7 minutes - 100 minutes, or more.

If the power supply to the refrigerator is resumed after the expiration of a predetermined lie is neither, then rotate the compressor in the first direction (step S137), and then rotate the compressor in the second direction (step S138) in accordance with the temperature inside the fridge.

For example, the power supply to the refrigerator is disconnected due to a power failure, and if the off time exceeds 100 minutes, then rotate the compressor in the first direction, giving the maximum amount of cooling air in the refrigerator, and then when the temperature inside the refrigerator reaches a temperature preset by the user rotate the compressor in the second direction.

However, if the power supply is in the refrigerator will resume within a specified period of time (7 minutes - 100 minutes), the compressor rotates in the same direction of rotation as before the power failure (stage set s134). In this case, to solve the problem of the pressure difference of the compressor, a predetermined time is preferably set in the range from 7 minutes to 100 minutes.

After that determine is identical whether the temperature inside the refrigerator temperature preset by the user (step S135). When the temperature inside the fridge, turns out to be identical to the temperature preset by the user, the compressor stops (step S136).

However, if the temperature inside the refrigerator is not identical to the temperature preset by the user, the compressor rotation is t in the first direction to maintain the temperature, predetermined by the user, inside the fridge (steps S137 and S138).

Therefore, in the eleventh embodiment of the present invention, when the power supply to the refrigerator is turned off for a time exceeding a predetermined time, and then resumes, the compressor rotates in the first direction, providing the maximum amount of cooling air in the refrigerator. Or when the power supply to the refrigerator is turned off within a predetermined period of time, and then resumes, the compressor rotates in the same direction as before - before the power is turned off, and this provides a flow of cooling air in the refrigerator. Thus, it is possible to quickly cope with a change in load of the refrigerator.

Option 12 implementation

Now, with links to Fig, 18A and 18B will be described a method of controlling operation of the refrigerator compressor in accordance with the twelfth embodiment of the present invention.

On Fig presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the twelfth embodiment of the present invention.

First, in order to maintain a predetermined temperature within the refrigerator, the compressor rotates in the first direction, quickly reducing Nacha is inuu the temperature inside the refrigerator, and then the compressor rotates in the second direction, maintaining a predetermined temperature (step S141). In this case, the direction of rotation of the compressor is determined by the signal of the rotation direction. Whether the direction of rotation of the compressor is rotating in accordance with the signal of the rotation direction and the actual direction of rotation of the compressor are identical or not, you can learn by using a sensor to determine the direction of rotation of the compressor.

Now, with links to figa and 18V, will be described operation of the sensor for determining the direction of rotation of the compressor.

On figa and 18B shows a sensor for detecting the direction of rotation of the compressor is rotating in the first direction or the second direction in accordance with the twelfth embodiment of the present invention.

As shown in figa, the direction of rotation of the compressor is rotating in the first direction in accordance with the select signal issued from the unit signal generating rotation in the first direction or the second direction, is determined by the first sensor (A) direction of rotation and the second sensor (In) direction of rotation.

For example, when the compressor rotates in the first direction in accordance with the select signal of the rotation in the first direction as it exits the unit generirovana the signal of the rotation in the first direction or the second direction, the first and second sensors of the direction of rotation, installed in the compressor, converging with each other. Then the first sensor direction of rotation produces a signal determine the rotation in the first direction, and the microcomputer determines that the direction of rotation of the compressor is the first direction on the basis of the signal determine the rotation in the first direction from the first sensor direction of rotation.

Addressing figv, note that the direction of rotation of the compressor is rotating in the second direction, in accordance with the signal of the rotation direction (the second direction)issued from the unit signal generating rotation in the first direction or the second direction, is determined by the first sensor (A) direction of rotation and the third sensor (S) direction of rotation.

For example, when the compressor rotates in the second direction in accordance with the select signal of the rotation in the second direction issued from the unit signal generating rotation in the first direction or the second direction, the first and third sensors, the direction of rotation, installed in the compressor, converging with each other. Then the first sensor direction of rotation produces a signal determine the rotation in the second direction, and the microcomputer determines that the direction of rotation of the compressor is the second what UPRAVLENIE on the basis of the signal determine the rotation in the second direction from the first sensor direction of rotation.

In this case, when the compressor rotates in the first direction, the first and second sensors of the direction of rotation closer to each other, and when the compressor rotates in the second direction, the first and third sensors, the direction of rotation closer to each other.

After that, when the direction of rotation corresponding to the signal of the rotation direction, causing rotation of the compressor 30, and the actual direction of rotation of the compressor 30 are identical, rotate the compressor in accordance with the signal of the rotation direction (step S143). In this case, the actual direction of rotation of the compressor is determined by the sensors of the direction of rotation, mounted in the compressor.

However, if the direction of rotation corresponding to the signal of the rotation direction, causing rotation of the compressor 30 is not identical to the actual direction of rotation of the compressor 30, then rotate the compressor in accordance with the signal of the rotation direction up until the temperature inside the refrigerator reaches the temperature preset by the user (step S144).

When the temperature inside the refrigerator reaches a temperature preset by the user, the compressor immediately rotates in the direction opposite to the direction of rotation corresponding to signal the selection of the direction of rotation of the compressor 30. Namely, due to the fact that the compressor is immediately rotated in the direction opposite to the direction of rotation corresponding to the signal of the rotation direction of the compressor 30, you can reset the erroneous connection of each part of the compressor (step S145).

After that the compressor rotates in the first direction or the second direction in accordance with the temperature measured by the temperature sensor in the refrigerator.

Thus, in the twelfth embodiment, the present invention determines is identical whether the direction of rotation of the compressor corresponding to the signal of the rotation direction of the compressor, the actual direction of rotation of the compressor, and then, if the direction of rotation of the compressor corresponding to the signal of the rotation direction of the compressor, and the actual direction of rotation of the compressor is not identical and it is determined that the compressor is rotating in the other direction because the state failed connection parts of the compressor, the current direction of rotation of the compressor support up until the temperature inside the refrigerator reaches the temperature preset by the user, and then, when the temperature inside the refrigerator reaches pre-set temperature, the compressor performs one revolution in the direction protivopul the nom direction of rotation, the corresponding signal of the rotation direction of the compressor. Due to this, it is possible to prevent the degradation of the refrigerator in accordance with the improper operation of the compressor, and it is possible to reduce power consumption.

Option 13 implementation

Now, with links to pig, you will learn how to control the operation of the refrigerator compressor in accordance with the thirteenth embodiment of the present invention.

On Fig presents a flowchart of the operational sequence of the method of controlling the operation of the refrigerator compressor in accordance with the thirteenth embodiment of the present invention.

First of all, when the user selects the operation mode of the refrigerator, the refrigerator compressor initially rotate in the first direction, increasing the cooling capacity to quickly reduce the temperature inside the refrigerator, and then determine expired whether a predetermined time (for example, 10 minutes) (steps S151 and S152). In this case, when the cooling capacity increases due to the rotation of the compressor in the first direction within a predetermined time, the temperature inside the refrigerator quickly reaches the temperature preset by the user.

Then, when a predetermined time expires, the refrigerator compressor rotate in the second direction, to ensure that the temperature inside the refrigerator has reached a predetermined temperature. Namely, after the temperature inside the refrigerator quickly reaches a pre-defined temperature, due to the rotation of the compressor in the first direction within a predetermined time, the compressor rotates in the second direction, causing the temperature inside the refrigerator gradually reaches a temperature preset by the user, thereby reducing power consumption of the compressor (step S153). In this case, when a predetermined time expires, the maximum cooling capacity is unnecessary, so you do not have to waste power by turning the compressor in the first direction after a predetermined time.

When a predetermined time expires, determine, reaches if the temperature inside the refrigerator temperature preset by the user (step S154). If the temperature inside the refrigerator reaches a temperature preset by the user, then stop (step S155) the operation of the compressor is rotating in the second direction.

However, if the temperature inside the refrigerator reaches a temperature preset by the user after a predetermined time, then rotate the compressor in the second direction for each predetermined period of the time until while the temperature inside the refrigerator reaches the temperature preset by the user.

When the temperature inside the refrigerator becomes identical to the temperature preset by the user, the compressor is stopped. If the temperature inside the refrigerator is not identical to the temperature preset by the user, the process of rotation of the compressor in the second direction during each specific time period is carried out again.

Therefore, in the thirteenth embodiment of the present invention, the refrigerator compressor is rotating in the first direction within a predetermined time, so that the temperature inside the refrigerator quickly reached almost temperature preset by the user, and then, when a predetermined time expires, the compressor rotates in the second direction, so that the temperature inside the refrigerator gradually reached a temperature preset by the user, resulting in decreased power consumption of the compressor.

The above-described method and apparatus for controlling operation of the refrigerator compressor in accordance with the present invention have many advantages.

That is, by controlling the direction of rotation of the compressor in a variety of ways, you can reduce the power consumption of the refrigerator, mo is but to improve the performance of the refrigerator for freezing and/or cooling, and you can precisely control the temperature inside the fridge.

In the first embodiment of the present invention, when the temperature inside the refrigerator becomes high in accordance with the defrosting operation, rotate the compressor in the first direction after the defrosting operation to supply the maximum amount of cooling air in the refrigerator, and then rotate the compressor in the second direction for each predetermined period of time to ensure a rapid reduction in temperature inside the fridge after thawing, that does not give food to spoil.

In the second embodiment of the present invention by selecting the direction of rotation of the compressor in accordance with the operation mode of the refrigerator is selected by the user, and converting the operating frequency of the compressor based on the temperature inside the refrigerator can provide precise control of the temperature inside the fridge.

In the third embodiment of the present invention, when the user selects the power-saving operation mode, the compressor rotates in the second direction, and therefore it is possible to reduce power consumption.

In the fourth embodiment of the present invention by determining whether a lump is a spring works exactly in accordance with a certain direction of rotation, determined in accordance with the temperature inside the refrigerator by comparing the current value supplied to the compressor, and the current value predetermined during the experiment, it is possible to prevent deterioration of the operational efficiency of the cooling caused by malfunction of the compressor.

In the fifth embodiment of the present invention once the working direction of rotation of the compressor in the first direction or the second direction when you want to change the direction of rotation of the compressor in accordance with a change in temperature inside the refrigerator, the compressor stops for a predefined period of time, change the direction of rotation of the compressor and will use it again, due to what can be achieved reliability of the compressor.

In the sixth embodiment of the present invention operating range temperature sensor for measuring the temperature inside the refrigerator set in accordance with the direction of rotation of the compressor, and the control signal compressor are generated in accordance with the specified operating range. Accordingly, when the compressor rotates in the first direction or the second direction, it is possible to improve this parameter, as the number of on / off compressor on the difference in hladoproduct is lnasty, and because the temperature difference between the inside of the refrigerator is reduced, it is possible to reduce power consumption.

In the seventh embodiment of the present invention because the amount of refrigerant when the compressor rotates in the second direction set as a guaranteed amount of refrigerant for the entire cooling cycle of the refrigerator, it is possible to eliminate the shortage of the refrigerant, which may occur when the compressor rotates in the first direction or the second direction, and thereby it is possible to improve the performance of the refrigerator to freeze.

In the eighth embodiment of the present invention, when the external temperature of the refrigerator is lower than the predefined external temperature, the compressor rotates in the second direction, and if the external temperature of the refrigerator is lower than the predefined external temperature, the compressor rotates in the first direction. Due to this, it is possible to minimize the power consumption of the refrigerator and you can precisely control the temperature inside the refrigerator, ensuring its compliance with the temperature set by the user.

In the ninth embodiment of the present invention, when the internal temperature of the refrigerator is lower than a pre-specified internal temperature (8° (C), the compressor rotates in the first direction, the sun is bedstvie which can minimize power consumption and can precisely control the temperature inside the refrigerator, ensuring its compliance with the temperature set by the user.

In the tenth embodiment of the present invention, when the load is introduced into the fridge, first the temperature inside the refrigerator is measured simultaneously with the determination of the state of the refrigerator door, and when to expire a predetermined time, measuring a second temperature. After that, when the difference between the first and second temperatures is the same as the predefined reference temperature (for example, 3°C)or higher, the compressor rotates in the first direction, providing the maximum amount of cooling air in the refrigerator, so that he could handle the load, so it can be maintained at an optimal temperature.

In the eleventh embodiment of the present invention, when the power supply to the refrigerator is turned off for a time exceeding a predetermined time, and then resumes, the compressor rotates in the first direction, providing the maximum amount of cooling air in the refrigerator. Or when the power supply to the refrigerator is turned off within a predetermined period of time, and then resumes, the compressor rotates in the same direction as before - before the power is turned off, and it feeds ohlazhdajuschaja in the fridge. Thus, it is possible to quickly cope with a change in load of the refrigerator.

In the twelfth embodiment of the present invention is defined identically whether the direction of rotation of the compressor corresponding to the signal of the rotation direction of the compressor, the actual direction of rotation of the compressor, and then, if the direction of rotation of the compressor corresponding to the signal of the rotation direction of the compressor, and the actual direction of rotation of the compressor is not identical and it is determined that the compressor is rotating in the other direction because the state failed connection parts of the compressor, the current direction of rotation of the compressor is supported as long as the temperature inside the refrigerator reaches the temperature preset by the user, and then, when the temperature inside the refrigerator reaches a predetermined temperature the compressor performs one revolution in the direction opposite to the direction of rotation corresponding to the signal of the rotation direction of the compressor. Due to this, it is possible to prevent the degradation of the refrigerator in accordance with the improper operation of the compressor, and it is possible to reduce power consumption.

In the thirteenth embodiment of the present invention, the refrigerator compressor in amaut in the first direction within a predetermined time, to ensure that the temperature inside the fridge quickly reached almost temperature preset by the user, and then, when a predetermined time expires, the compressor rotates in the second direction, so that the temperature inside the refrigerator gradually reached a temperature preset by the user, resulting in decreased power consumption of the compressor.

Because the present invention in the context of his being or essential characteristics can be realized in several forms, it should also be understood that the above described embodiments of are not limited by any details of the foregoing description, but should be interpreted in a broad sense within the essence and scope of the claims of the invention described in appended claims, and therefore all changes and modifications that fall within the limits and bounds of the claims or equivalents of such scope and boundaries, should be considered as covered by the appended claims.

1. The method of controlling the operation of the refrigerator compressor, in which the defrost cycle when the temperature inside the refrigerator reaches a predetermined temperature, thawing, and according to the method depending on the temperature inside the refrigerator changing the cooling capacity of the compressor, have been fitted is in the fridge, by controlling the direction of rotation of the compressor, and the cooling capacity of the compressor increases, the rotating compressor in the first direction, and is reduced by rotating the compressor in a second direction, opposite the first, is repeatedly perform the rotation in the second direction and stopping of the compressor to reach the inside of the refrigerator predetermined temperature thawing before thawing, and after thawing carry out the rotation of the compressor in the first direction to achieve the desired temperature and to maintain the set temperature, the compressor periodically stop or rotate in the second direction.

2. The method of controlling the operation of the refrigerator compressor, which change the cooling capacity of the compressor is installed in the refrigerator, through that control the direction of rotation of the compressor in accordance with the flow volume of the cooling air corresponding to user-selected mode of operation, and increase the cooling capacity of the compressor during rotation of the compressor in the first direction and reduce it during the rotation of the compressor in a second direction, opposite the first, and control the rotation speed of the compressor in accordance with the change of the operating frequency of the compressor depending on the temperature inside the refrigerator is Delnice.

3. The method according to claim 2, in which additionally, during the rotation of the compressor in the first direction in accordance with the operation mode of the refrigerator measure the value of the current applied to the compressor, and if the measured current exceeds the reference current value, then continue the rotation of the compressor in the first direction, and if the measured current value is less than the predetermined reference current value, then shut down the compressor, and when the rotation of the compressor in the second direction in accordance with the operation mode of the refrigerator, if the measured current value is less than the preset reference current value, then continue to rotate the compressor in the second direction, and if the measured current value exceeds the reference current value, then shut down the compressor.

4. The method according to claim 2, in which additionally, if you want to change the direction of rotation of the compressor in accordance with the temperature inside the refrigerator, the compressor is stopped for a specified period of time, and then change the direction of rotation of the compressor.

5. The method according to claim 2, in which additionally, if the operation mode of the refrigerator is selected by the user is a power-saving mode, then rotate the compressor in the second direction, and then, when the temperature inside the refrigerator rises above a predetermined temperature, rotate compressors first direction, and if the operation mode of the refrigerator is selected by the user is a standard mode, then rotate the compressor in the first direction, and then, when the temperature inside the refrigerator falls below a predetermined temperature, rotate the compressor in the second direction.

6. The method according to claim 5, wherein optionally the operating range of the unit of temperature measurement for measuring the temperature inside the refrigerator set in accordance with the direction of rotation of the compressor and measure the temperature inside the refrigerator in accordance with the specified operating range.

7. The method according to claim 6, wherein during the rotation of the compressor in the first direction to define the operating range of the temperature sensor from-0.5 to +0.5 to°C.

8. The method according to claim 6, wherein, when the rotation of the compressor in the second direction define the operating range of the temperature sensor from 0.3 to +0,3°C.

9. The method of claim 8, wherein the amount of the refrigerant for the refrigeration cycle of the refrigerator set as the amount of the refrigerant compressor when the compressor rotates in the second direction.

10. The method according to claim 6, in which the amount of refrigerant in the cooling cycle of the refrigerator calculate, when the temperature inside the evaporator and the inlet temperature of the evaporator is equal, and the compressor rotates in the second direction, and set the calculated amount of refrigerant as the volume of the refrigerant whom the spring.

11. The method according to claim 2, wherein, when controlling the direction of rotation of the compressor additionally rotate the compressor in the second direction when the temperature is outside of the refrigerator is lower than the preset temperature, and rotate the compressor in the first direction when the temperature outside the refrigerator is not lower than the set temperature.

12. The method according to claim 11, wherein the preset temperature is 43°C.

13. The method according to claim 2, wherein when controlling the direction of rotation of the compressor additionally rotate the compressor in the second direction when the temperature inside the refrigerator is lower than a preset internal temperature, and rotate the compressor in the first direction when the internal temperature inside the refrigerator is not lower than a preset internal temperature.

14. The method according to item 13, wherein the preset internal temperature is 8°C.

15. The method according to claim 2, wherein when controlling the direction of rotation of the compressor additionally close the fridge door and measure the first temperature inside the refrigerator, measure a second temperature inside the refrigerator, after the expiration of a specified period of time, rotate the compressor in the first direction if the difference between the first and second temperatures not lower than the preset reference temperature, and rotate the compressor in the second direction if the difference between the first and second temperatures below than the given reference temperature.

16. The method according to item 15, wherein the preset reference temperature is 3°C.

17. The method according to claim 2, wherein when controlling the direction of rotation of the compressor additionally rotate the compressor in the first direction when the power supply to the refrigerator is disconnected for longer than the specified time, then resumes, and rotate the compressor in the same direction of rotation as before the power failure if the power to the refrigerator off within a certain time, and then resumed.

18. The method according to 17, wherein the certain time is 7-100 minutes

19. The method according to claim 2, wherein when controlling the direction of rotation of the compressor further define the same direction of rotation according to the rotation direction, causing the direction of rotation of the compressor, with the actual direction of rotation of the compressor, in accordance with the temperature inside the refrigerator, and rotate the compressor in the direction opposite to the rotation direction according to the signal of the rotation direction, if the direction of rotation corresponding to the signal of the rotation direction and the actual direction of rotation of the compressor do not match.

20. The method according to claim 19, wherein, when the rotation of the compressor in the opposite direction, when the and the direction of rotation according to the rotation direction and the actual direction of rotation of the compressor do not match, the compressor performs one revolution in the direction opposite to the direction of rotation according to the rotation direction of the compressor.

21. The method according to claim 19, which additionally rotate the compressor in accordance with the signal of the rotation direction, if the direction of rotation according to the rotation direction and the actual direction of rotation of the compressor are the same.

22. The method according to claim 19, in which the actual direction of rotation of the compressor is determined by a sensor of the direction of rotation that is installed in the compressor and generating a signal corresponding to the first or second direction of rotation of the compressor.

23. The method according to claim 2, wherein when controlling the direction of rotation of the compressor additionally rotate the compressor in the first direction within a specified time, and when the specified time expires, rotate the compressor in the second direction.

24. The method according to item 23, wherein the specified time is a time during which the temperature inside the fridge essentially reaches the temperature set by the user.

25. The method according to paragraph 24, wherein optionally, the compressor is stopped when the compressor rotates in the second direction, and the temperature inside the refrigerator reaches the temperature set by the user.

26. The method according A.25,in which, rotate the compressor in the second direction for each predetermined period of time, if the temperature inside the refrigerator reaches the temperature set by the user.

27. Device for controlling operation of the refrigerator compressor, contains a microcomputer for signal select to select the direction of rotation of the compressor in accordance with the operation mode of the refrigerator is selected by the user, the inverter operating frequency to convert the operating frequency of the compressor in accordance with the temperature in the refrigerator and the unit signal generating rotation in the first or in the second direction to the rotation direction of the compressor based on the select signal and for varying the speed of rotation on the basis of the converted operating frequency, the unit of temperature measurement for measuring the temperature inside the refrigerator, while the operating range of the unit of measurement temperature is set on the basis of the direction of rotation of the compressor, and the unit of temperature measurement measures the temperature inside the refrigerator in accordance with the specified operating range.

28. The device according to item 27, which during the rotation of the compressor in the first direction, the operating range of the unit of measurement of temperature is from-0.5 to +0.5 to°C.

29. The device according to item 21, in which during the rotation of the compressor in the second healthy lifestyles the NII operating range of the sensor temperature ranges from 0.3 to +0,3° C.

30. The device according to item 27, further containing block mode selection for signal selection mode corresponding to the selected operation mode of the refrigerator, and if the operation mode selected by the user is a power-saving mode, the power generation of the signal of the rotation in the first or second direction provides the rotation of the compressor in the second direction, and then, when the temperature inside the refrigerator exceeds the set temperature, the unit signal generating rotation in the first/second provides the rotation direction of the compressor in the first direction, and if the operation mode of the refrigerator is a standard mode of operation, the power generation of the signal of the rotation in the first/second provides the rotation direction of the compressor in the first direction, and then, when the temperature inside the refrigerator reaches the set temperature, the unit signal generating rotation in the first/second provides the rotation direction of the compressor in the second direction.

31. The device according to item 30, optionally containing block detection current that is designed to measure current supplied to the compressor, when the rotation of the compressor in the first direction in accordance with the operation mode of the refrigerator, if the measured current value is greater than the preset reference current value, mikroC mputer produces the control signal work, causing continued rotation of the compressor in the first direction, and if the measured current value is less than the preset reference current value, the microcomputer outputs a signal to control the operation of driving the compressor off.

32. The device according to p in which during the rotation of the compressor in the second direction in accordance with the operation mode of the refrigerator, if the measured current value is greater than the preset reference current value, the microcomputer outputs a signal to control the operation of driving the compressor off, and if the measured current value is less than the preset reference current value, the microcomputer generates a control signal operation, causing continued rotation of the compressor in the second direction.



 

Same patents:

Refrigerating plant // 2318166

FIELD: refrigerating engineering.

SUBSTANCE: refrigerating plant comprises vessels and metallic pads that underlie the vessels and are connected to the pipeline through branch pipes. The pipeline is mounted with an inclination and is connected with the pressure-tight tank for collecting spilled ammonia. The tank is connected with the atmosphere through the pipeline and stop valve and is provided with air separator for removing air from its steam zone, branch pipes, and pipeline.

EFFECT: enhanced efficiency.

3 cl, 1 dwg

Cooling plant // 2313047

FIELD: conditioning system, particularly ones adapted for vehicle conditioning and provided with centrifugal compressors.

SUBSTANCE: cooling plant comprises closed loop with sealed centrifugal pump with built-in electric motor, as well as condenser with axial fan, thermostatic expansion valve and evaporator. Thermal phial of thermostatic expansion valve is installed at evaporator outlet. Bypass line with throttle is connected in parallel to thermostatic expansion valve. Object to be conditioned is communicated to evaporator through air loop provided with centrifugal fan. Throttle has locking valve and bellows-type pneumatic drive having control cavity communicated with thermal phial of thermostatic expansion valve.

EFFECT: simplified structure and increased operational reliability.

1 dwg

FIELD: mechanical engineering, particularly devices to prevent wet vapor ingress in cylinders of compressors used in gas-processing plants for pressure increase in natural gas pipelines.

SUBSTANCE: device comprises horizontal sucking pipe and emergency shutdown sensor. Low-frequency ultrasound generator is arranged inside horizontal sucking pipe. Ultra-violet radiation sensor is installed in lower part of horizontal sucking pipe and is spaced 0.1-1 m from low-frequency ultrasound generator.

EFFECT: increased operational reliability.

1 dwg

FIELD: cooling engineering.

SUBSTANCE: device comprises two temperature gauges, unit for comparing temperatures, unit for generating alarm signal on wet stroke, converters for converting signals from temperature gauges into the alternating signals, frequency synchronizer, amplifier, and protecting relay. The first temperature gauge is set in the line for supplying coolant to the object to be cooled. The second temperature gauge is set at the inlet of the line for withdrawing the vapors of coolant from the object to be cooled to the bridge of switching of the compressors. The converters are synchronized in frequency. The unit for comparing temperatures is made of a transformer with magnetization and two primary windings which are connected in series with the signal converters. The secondary winding is connected with the input of the amplifier whose output is provided with the protecting relay.

EFFECT: enhanced reliability.

1 dwg

The invention relates to refrigeration and can be used in refrigeration systems, air conditioning systems and life support

The invention relates to refrigeration, and in particular to household refrigerators compression-type

The invention relates to refrigeration and can be used in a combined system for cooling or heating during storage of different types of products

The invention relates to a low-temperature technique, in particular to a method of maintaining a predetermined temperature in the refrigerator

FIELD: engines and pumps.

SUBSTANCE: invention relates to the method of controlling gas flow in the compressor wherein the volume is increased during intake, the fed gas volume gets compressed and is released via check valve (6) and/or controlled release valve (3) during the exhaust stroke. Here, note that the compressor incorporates intake valve (2) air-, water- electromagnetically-operated to open and close to the control signal instruction. Intake valve (2) is kept tightly closed, at least, during the exhaust stroke.

EFFECT: power savings and minor influence on environments.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: device is used in a hydro drive of a mechanism for feeding a pit-run borer; the said borer is applied in boring blast holes in rocks of a high degree of nonuniformity. The device consists of case-sleeve with lead-in and outlet channels, movable valve with grooves and base. There are an upper, middle and low conic grooves milled in the valve. A permanent supply of a working flow under pressure is carried through the low groove. A control pressure is supplied through the upper groove. A permanent outlet of drainage is performed through the middle groove. An inlet channel is made in the base and working pressure supply to the end of the valve goes through this inlet channel; the valve, the working pressure supply channel and the conic grooves create the contour facilitating control of pump efficiency, a hydraulic centering and returning the valve into an initial position.

EFFECT: facilitating stability of a fixed pressure and increasing reliability of operation of the device.

2 dwg

FIELD: oil refining industry.

SUBSTANCE: invention relates to device for protection of submersible pumping unit operating under conditions affecting serviceability of its systems. Proposed device contains submersible electric motor connected to three-phase power circuit with insulated neutral by means of power supply breaker with control unit, submersible electric motor supply transformer and power cable with shield. Cable insulation fault detector is coupled by actuating circuit with control unit and by input circuit, with neutral point of secondary winding of submersible electric motor supply transformer. Submersible device includes minimum one parameters pickup with output part connected to power circuit of submersible electric motor and to cable shield. Output part of submersible device is made in form of switch resistance-coupled between power supply cable of submersible electric motor and power cable shield. At preset tolerable parameters of pickup (pickups), switch has resistance higher than resistance of operation of insulation fault detector, and at conditions of deviation from preset tolerable parameter of pickup (pickups), it has resistance lower than resistance of operation of insulation fault detector.

EFFECT: improved reliability, enlarged operating capabilities of protection system.

2 cl, 1 dwg

FIELD: oil producing and processing industries; pump building.

SUBSTANCE: invention relates to method of protection of submersible pumping unit operating under conditions affecting serviceability of its systems, mainly, when operating in wells. Proposed protection device contains submersible electric motor connected with electrohydraulic pump, control unit and submersible electric motor switch-off device. Current transformer is installed in circuit o submersible electric motor to output of which time interval analyzer is connect to measure time intervals between measurements of current pulses of submersible electric motor when working member of electrohydraulic pump changes over from "working stroke" to "reverse stroke" and back. Time interval analyzer is connected by output through actuating circuit to control unit and, through the latter, to device switching off submersible electric motor with possibility of disconnection of submersible electric motor when preset value of time interval of change over of working member of electrohydraulic pump from "working stroke: to "reverse stroke" and back is exceeded.

EFFECT: improved reliability of protection device, reduced cost of equipment.

1 dwg

FIELD: mechanical engineering; positive displacement pumps.

SUBSTANCE: proposed control system contains pressure hydraulic line connected with pump through separating element. Hydraulic controlled valve is made in form of pilot-controlled check valve. Safety device is coupled with pressure hydraulic line of pump and starting valve connected by hydraulic line with pump input. Safety device can control starting valve. Drain valve installed in system is connected with pump input. Pump and valve unit are made so that there is no necessity of drain pipelines, working medium is directed to pump suction side which makes unnecessary any additional pipelines which cuts down material usage and cost of equipments as a whole, and improved operating capabilities. Safety device precludes pressure rise in hydraulic lines by more than 10% which permits use of more light and cheap pipelines.

EFFECT: reduced material usage and cost of equipment.

1 dwg

FIELD: automotive industry.

SUBSTANCE: automotive compressor comprises solenoid-operated valve mounted in the delivery space of the compressor and electronic unit for control of the valve whose control input is connected with the output of the signaling unit of the transducer of the alarm oil pressure system of the engine.

EFFECT: enhanced reliability.

1 dwg

FIELD: chemical industry; gas-production industry; devices for purification of the gases.

SUBSTANCE: the invention is pertaining to the devices for purification of the gases in the different fields of the national economy, for example, in the chemical industry, gaseous industries, and is used predominantly for dehydration and purification on the drilling rigs. The installations for the compressed air dehydration includes: the compression pump (1), the refrigerator (3), two adsorbers (6) and (7), the dehydrated air main (11) with the ejector (31) and the moist air main (8) with the ejector (18), the preheater (19), the pressure regulator (35), the electronic amplifier (38), the magnetic amplifier (40) with the rectifier on the output and the pressure control sensor (34). The adsorbers are fulfilled with the cavities for the adsorbent and the heat-transfer agent and the branch-pipes for entry and exit of the heat transfer agent and the damp and dehydrated air. The ejector (18) of the moist air main is installed before the refrigerator (3). The preheater (19) is connected to the cavity for the heat-transfer agent and with the compression pump (1). The pressure control sensor (34) is mounted in the dehydrated air main (11). The compression pump (1) is supplied with the drive (32) having the rotation speed control (33) made in the form of the block of powdery electromagnetic electromagnetic couplings. The air pressure regulator (35) includes the comparison unit (36) connected to the pressure control sensor (34), the functions setting control unit (37) and the non-linear feedback unit (39). The comparison unit (36) is connected to the input of the electronic amplifier (38). The output of the electronic amplifier (38) is connected to the input of the magnetic amplifier (40). The rectifier on the output of the magnetic amplifier (40) is connected to the rotation speed control (33) of the drive (32) of the compression pump (1). The invention allows to reduce the power inputs at production of the dehydrated compressed air under the conditions of the negative environmental temperatures.

EFFECT: the invention ensures the reduced power inputs at production of the dehydrated compressed air under the conditions of the negative environmental temperatures.

1 dwg

FIELD: mechanical engineering; traction vehicles.

SUBSTANCE: invention relates to piston compressor plants of traction vehicles. In proposed automatic pressure control system containing pneumatic system connected with compressor driven by shaft of heat engine through reduction gear and variable-filling fluid coupling whose inputs is connected with control oil feed spool delivering oil into fluid coupling, on-board microprocessor controller is used to inputs of which pressure pickup connected by pipeline with pneumatic system of traction vehicle and compressor shaft speed pickup connected with compressor shaft are connected though analog-to-digital converters. Output of on-board microprocessor controller is connected through digital-to-analog converter with amplifier connected to electric signal-into-pneumatic signal converter whose input is also connected with pneumatic system of traction vehicle and outer put is connected with input of diaphragm spring single-acting drive of spool which controls delivery of oil into fluid coupling.

EFFECT: improved reliability of compressors, reduced consumption of oil.

4 dwg

FIELD: mechanical engineering; traction vehicles.

SUBSTANCE: invention relates to piston compressor plants of traction vehicles. In proposed automatic pressure control system containing pneumatic system connected with compressor driven by shaft of heat engine through reduction gear and variable-filling fluid coupling whose inputs is connected with control oil feed spool delivering oil into fluid coupling, on-board microprocessor controller is used to inputs of which pressure pickup connected by pipeline with pneumatic system of traction vehicle and compressor shaft speed pickup connected with compressor shaft are connected though analog-to-digital converters. Output of on-board microprocessor controller is connected through digital-to-analog converter with amplifier connected to electric signal-into-pneumatic signal converter whose input is also connected with pneumatic system of traction vehicle and outer put is connected with input of diaphragm spring single-acting drive of spool which controls delivery of oil into fluid coupling.

EFFECT: improved reliability of compressors, reduced consumption of oil.

4 dwg

FIELD: transport engineering.

SUBSTANCE: invention is designed for improvement of piston compressor plants of traction vehicles, for instance, diesel-driven rolling stock in which compressors are driven by heat engine. Proposed automatic pressure control system contains pneumatic system connected with compressor driven by shaft of heat engine through mechanical reduction gear and variable filling fluid coupling. Input of coupling is connected with spool which control delivery of oil into fluid coupling. System is furnished with continuous action control member whose control spool is coupled with diaphragm spring one-way drive connected by pipeline with pneumatic system of traction vehicle.

EFFECT: provision of automatic maintenance of pressure in pneumatic system of traction vehicle irrespective of flow rate, temperature and pressure of automatic air.

4 dwg

FIELD: artesian wells.

SUBSTANCE: invention relates to general-purpose regulating and control systems and it can be used to control electric pumps of artesian wells. Proposed control device contains switching element connected by inputs to supply voltage terminals and by outputs, to electric pump terminals, water level transmitter in water tower and electric pump check and control unit connected by first input with output of water level transmitter and by first output, with control input of switching element, voltage comparator, like inputs of first and second groups of inputs of voltage comparator being connected, respectively, with supply voltage terminal and with electric pump terminal connected with like phase, and voltage measurement unit whose inputs are connected with supply voltage terminals. Outputs of voltage comparator and voltage measurement unit are connected, respectively, with second and third control inputs of check and control unit of electric pump.

EFFECT: improved reliability of water supply.

2 cl, 3 dwg

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