Combined device for cooling and creating vacuum

FIELD: physics.

SUBSTANCE: combined device for cooling and creating vacuum has a cooling circuit, which contains a compressor for compressing the coolant, a condenser for condensing coolant coming from the compressor, expanding apparatus for reducing pressure in the coolant and at least one evaporator for evaporating the coolant. The cooling circuit is divided into a high-pressure branch and a low-pressure branch for apparatus for creating vacuum inside a container. The apparatus for creating vacuum is connected to the low-pressure branch of the cooling circuit so as to use the pressure difference created in the cooling circuit to create vacuum in the container. The proposed device is realised using a method of composite cooling and creating vacuum.

EFFECT: use of the present group of inventions provides for good operational characteristics while saving energy.

22 cl, 2 dwg

 

The present invention relates to the combined cooling unit and a vacuum containing the cold chain, preferably containing a compressor for compressing refrigerant, a condenser for condensing the refrigerant coming from the compressor, an expansion device to lower the pressure in the refrigerant and at least one evaporator for evaporating refrigerant and the cold chain is divided into the branch high pressure and branch low pressure, means for creating a vacuum inside the container.

It is known that the most widely used method of food preservation is to place them in such refrigeration devices, such as refrigerators, freezers or similar device, since at low temperature is reduced biological activity, and the process of changing food slow.

The cooling of these refrigeration devices and, consequently, food products contained therein, occurs in a known manner, i.e. these devices are equipped with cold chain that contains the compressor, condenser, expansion device and evaporator.

The task of the compressor is to compress the refrigerant, usually R134a or R600a, which thus reaches high pressure, and transfer it to a gaseous state at stake is ensator, in which the refrigerant condenses and becomes a high pressure fluid.

Then, the refrigerant under high pressure passes through the expansion device, which element is installed between the condenser and the evaporator unit circuit cooling, the purpose of which consists in a sudden decrease of pressure in the refrigerant. Therefore, the expansion device creates a pressure difference. The presence of a pressure difference in the circuit of cooling is very important, because it causes a change in the boiling point of the refrigerant. Without this change, the pressure of the cold chain is just a container of refrigerant as specified refrigerant would not dramatically reduce its temperature to several tens of C below zero and, therefore, freezing will not occur.

Then, the refrigerant in the expansion device, which usually consists of a small tube, called a "capillary", is directed to the evaporator, which takes place inside the walls of the refrigeration device to absorb heat from the camera that you want to cool. Absorbs heat, the refrigerant evaporates and goes into a gaseous state, it is possible to perform the cooling process in the cooling device.

The refrigerant being in a gaseous state, then given to the compressor to repeat the DVD player is inogo cycle.

Another method of food storage is also known, which consists in placing food in special containers, which creates a vacuum to reduce chemical processes and biological activity due to lack of oxygen, thus slowing down the spoilage of food. The vacuum method allows to achieve good results storage, provided that the optimum vacuum level.

Creating a vacuum inside the food container is known, in particular, using a chain to create a vacuum that contains a motor, a pump and a channel connected with the food container. During motor operation the vacuum pump performs a suction action through the connecting channel sucks the air inside the container, thus creating a vacuum.

In known cooling devices these methods of storage of food products are sometimes combined together in order to achieve a total result for longer food storage.

In fact, the individual known cooling devices, in particular refrigerators, freezers or similar device equipped with a circuit for cooling the freezing plus chain to create a vacuum inside the food container.

In accordance the with the known solutions circuit and cooling circuit for creating a vacuum divided. Therefore, the specified refrigeration device has several drawbacks, due to the large number of elements of the cold chain and chain to create a vacuum. This complexity inevitably leads to higher costs.

In addition, the known cooling device using a vacuum pump, connected with its own motor, separated from the circuit of cooling and are equipped with an electric cord.

The present invention aims to remedy these disadvantages and to create a combined device cooling and vacuum, in particular a refrigerator or freezer having another improved design compared with the known solutions.

The main purpose of the present invention is to provide a combined device of the cooling and vacuum, are equipped with a cost-effective and efficient means to create a vacuum inside the food container.

Another objective of the present invention is to provide a combined device of the cooling and vacuum, which under rational consumption of electricity provides very good performance.

According to the invention results from the combined cooling unit and a vacuum containing the cold chain, preference is sustained fashion containing a compressor for compressing refrigerant, a condenser for condensing the refrigerant coming from the compressor, an expansion device to lower the pressure in the refrigerant and at least one evaporator for evaporating refrigerant and the cold chain is divided into the branch high pressure and branch low pressure, means for creating a vacuum inside the container, characterized in that the means for creating a vacuum connected to a branch of the low-pressure circuit cooling for the use of the pressure difference generated in the circuit cooling, to create a vacuum in the container.

Means for creating a vacuum can contain a pump, preferably a positive displacement pump that uses periodic changes in pressure of a refrigerant circuit cooling. The pump may have a body divided into first cavity and the second cavity with the aid of the moveable element. The movable element may contain helical element enclosed in a metal sheath. The volume and pressure in the first cavity and the second cavity of the pump housing can vary depending on the deformation of the rolling element.

Means for creating a vacuum may include a channel and a connecting element for connection of the pump with the container.

The first cavity of the pump housing can be connected to the channel through the first valve.

The first cavity to the pus pump can be connected to the atmosphere through the second valve.

The first and second valve may be a mechanical valve that opens and closes depending on the pressure in the first cavity of the pump housing.

The device may contain electronic control system, and the first and second valves are regulated by the electronic control system.

The connecting element can be installed in the separation device, preferably, on the inner wall of the device.

The specified channel can contain a valve, in particular a normally closed valve, the air flow in the channel.

The cold chain may be capable of operating in two modes, in particular in the first cooling mode and the second mode of the vacuum.

The cold chain may contain a first valve mounted in the branch high pressure, in particular, on the outlet side of the condenser, which closes the circuit cooling, thus preventing the passage of refrigerant from the branch high pressure in the branch of low pressure.

The cold chain may contain a second valve mounted in the branches of low pressure, in particular, on the outlet side of the evaporator, which connects the means for creating vacuum with a branch of the low-pressure circuit cooling.

The device may contain electronic control system, and the first valve cooling and/or the second valve cooling circuit is able to be adjusted by means of an electronic control system.

The second cavity may be connected to a branch of the low-pressure circuit cooling through the second valve circuit cooling.

The compressor can be controlled thermostat that regulates the temperature of the device.

The device may contain electronic control system designed to control the compressor regardless of the status of the specified thermal relay.

The cold chain contains a filter, in particular, is installed on the inlet side of the expansion device that is designed to capture any contaminants that are in circuit cooling, to prevent clogging of the expansion device.

According to the invention generated method combined cooling and vacuum using a cooling device, including the cold chain, divided by the branch high pressure and branch low pressure, and means for creating a vacuum inside the container, connected with a branch of the low-pressure circuit of a cooling system in accordance with which the circuit performs the normal cooling cooling cycles for cooling device, at least one cycle of creating a vacuum in the container that runs between them.

The cold chain can perform several successive cycles of vacuum to create a vacuum within the same the containers is RA.

Other objectives, features and advantages of the present invention will be better understood when reading the following detailed description and the accompanying drawings, which are presented as non-limiting example and which depict the following:

figure 1 depicts a basic diagram of a device in accordance with the present invention;

figure 2 depicts a schematic view in section of the device shown in figure 1.

Figure 1 depicts the basic scheme of the combined device cooling and vacuum in accordance with the present invention. The device contains a circuit of the cooling system, including a compressor 1, a condenser 2, an expansion device 5 and the evaporator 6.

The compressor 1 is fed with electric power through an electric wire, which can be connected with a switch (not shown in the figures, being known type) and controlled by a thermal relay 9, which regulates the temperature inside the refrigeration unit.

The condenser 2 may be of any known type used in domestic refrigeration device, in particular, it can be air cooled, static, ribbed battery and/or ventilated by a blower, not shown.

In the embodiment shown in figure 1, the expansion fit Sobranie 5 consists of a capillary, i.e. thin channel, amounting to several meters in length. The specified capillary, however, may be replaced by any other type of known expansion devices.

The expansion device 5 allows to obtain a sharp drop in pressure in the refrigerant circuit cooling, and the amount of refrigerant entering the evaporator 6. It is clear that if the refrigerating device has more than one refrigeration compartment, the cold chain will contain a large number of evaporators 6 in accordance with the known method.

The cold chain also contains a filter 3, in particular, is installed on the inlet side of the expansion device 5, which is designed to trap any contaminants that are in circuit cooling to prevent clogging of the expansion device 5.

As you know, the cold chain is divided into branch AP high pressure, i.e. the set of elements in which the refrigerant is under high pressure, and a branch of BP low pressure, i.e. the set of elements in which the refrigerant is under low pressure; branch AP high pressure begins at the outlet of the compressor 1 includes a capacitor 2 and ends at the inlet of the expansion device 5. Branch BP low pressure begins at the outlet of the expansion device 5 contains vapor is 6 and ends at the inlet of the compressor 1.

In the embodiment in figure 1 the cold chain also contains the first valve 4 located in the branches of the AP high pressure circuit cooling, in particular, on the outlet side of the condenser 2, and the second valve 7 located in the branch BP low pressure circuit cooling, in particular, on the outlet side of the evaporator 6.

The first valve 4 allows you to short-circuit cooling, thus preventing the passage of refrigerant from the branches of the AP high pressure in the branch BP low pressure.

The second valve 7 allows you to connect a means of creating a vacuum with a branch BP low pressure circuit cooling. As shown in figure 1, the means for creating vacuum contain the pump 10, which is preferably a piston pump that can be connected to the container 13 through the channel 11 and the connecting element 12.

As you know, modern refrigeration devices contain electronic control system designed to control the operation of the household appliance or its various parts, which may contain a control panel, which you can control.

The compressor 1, the first valve 4, the second valve 7 and thermal relay 9 is controlled by an electronic system 8 control of the refrigeration device, in embodiment 1, the electronic control system 8 consists of an electronic control panel. In addition, e is the system 8 control is capable of controlling the compressor 1 regardless of the state of thermal relay 9.

The container 13 is composed of a sealed vessel adapted to the contents in the chamber of the refrigeration device, and has an aperture closed by a valve, in particular a mechanical valve (not shown in the figures), which allows you to maintain the vacuum within the container 13.

The connecting element 12 can comprise, for example, of a plastic tube. In any case, the connecting element is designed in such a way as to connect the container 13 with the channel 11, and is located in the chamber of the refrigeration device, preferably, on the inner wall of the specified device.

The connecting element 12 and the container 13 can also be provided with a sealing means such as gaskets.

Channel 11 contains a normally closed valve 14. When the valve 14 is open, for example, pressing button (not shown in the figures) of the refrigeration unit, air enters the channel 11 for restoring atmospheric pressure within the channel 11, thus facilitating the removing of the container 13 from the coupling element 12.

Figure 2 depicts a schematic cross section of the pump 10. The pump 10 has a housing 15, in particular having a cylindrical shape, hermetically separated within the first cavity and A second cavity B by means of the rolling element 16, in particular a corrugated membrane. The volume and pressure of the first cavity and A second is alasti B vary depending on the deformation of the rolling element 16.

The first cavity is connected to A channel 11 through valve 17 and with the atmosphere through valve 18. The second cavity B is connected to the branch BP low pressure circuit CR cooling through the valve 7. The valves 17 and 18 are mechanical valves that open and close depending on the pressure inside the first cavity A. In particular, the valve 17 opens when the pressure in the first cavity, A lower pressure inside the channel 11, and is closed when the pressure in the first cavity A higher pressure inside the channel 11. On the contrary, the valve 18 is opened when the pressure in the first cavity A above atmospheric pressure, and closes when the pressure in the first cavity A below atmospheric pressure.

Combined cooling device and create a vacuum in accordance with the present invention creates a vacuum inside the food container 13 and operates as described below as follows.

Circuit cooling cooling device in accordance with the present invention can operate in two modes: a first cooling mode and the second mode of the vacuum.

When the cold chain is running in the cooling mode, the compressor 1 draws the refrigerant from the branch BP low pressure and delivers it under high pressure in the branch AP high pressure and the condenser 2, wherein said refrigerant is condensed and cooled. According to the Les through the filter 3 and the first valve 4, the refrigerant passes through the expansion device 5 and is supplied under low pressure in the branch BP low pressure circuit cooling.

Then, the refrigerant passes through the evaporator 6, which consists of a system of tubes, made in the form of a coil, passing, mainly inside wall of the refrigeration device and then returning to the compressor 1. When passing through the evaporator 6, the refrigerant evaporates, thereby cooling section of the refrigeration device.

This path of movement of the refrigerant electronic system 8 control keeps the first valve 4 is open and the second valve 7 closed. Therefore, in this position, a means for creating a vacuum, in particular the pump 10, is connected with the branch BP low pressure circuit CR cooling, and refrigerating device performs its normal refrigeration cycles for cooling food products.

If the user wants to create a vacuum inside the container 13, he/she connects the container 13 with the connecting element 12 and then actuates a control device, such as a button (not shown in the figures), which allows the electronic system 8 control to generate signals used to detach thermal relay 9 from the circuit cooling to thermal relay 9 failed to enable and/or disable the compressor 1 closing the first valve 4, so that the refrigerant is not able to enter the branch BP low pressure through the expansion device 5 opening of the second valve 7, to connect the tools glassdale vacuum, in particular, the pump 10 with the branch BP low pressure circuit cooling, the compressor 1, which sucks the refrigerant from the branch BP low pressure and supplies it to the branch of the AP high pressure and the condenser 2.

After turning on the compressor 1, the pressure in the branch BP low pressure drops. Because the second valve 7 is open, the movable element 16 of the pump 10 is moved down. In this position the volume of the first cavity A is increased, while the pressure inside the specified first cavity A is reduced. This reduces the pressure in the first cavity A causes the valve 17 to open and the valve 18 to close. As the valve 17 connects the first cavity with A channel 11 and as the container 13 is connected with the connecting element 12, air is vented from the container 13 and it creates a vacuum.

When the movable element 16 reaches the maximum possible compression ratio, the electronic system 8 generates control signals used to turn off the compressor 1, the opening of the first valve 4, so that the refrigerant could due to the pressure difference between the branch AP high pressure and branch BP low pressure to pass through the expansion device 5 and to enter the branch BP low pressure.

Because the second valve 7 is still open, the refrigerant flow in the branch BP low pressure causes an increase in pressure in the branch BP low pressure, and the WTO the second cavity B of the pump 10.

If the refrigerant received in the branch BP low pressure, has led to increasing pressure, the electronic system 8 generates control signals used to close the valve 7 to disconnect the pump 10 from the branches BP low pressure circuit cooling, thermal relay connection 9 with the circuit of cooling, so that it can enable and/or disable the compressor 1 and the cooling device can again operate in the cooling mode.

The increase of pressure in the second cavity B causes stretching of the rolling element 16 and the increase in the volume of the second cavity B. Therefore, the volume of the first cavity A is reduced and the pressure in the first cavity A is increased.

This increase in pressure in the first cavity A causes the valve 17 to close and the valve 18 to open, thus connecting the first cavity A with the atmosphere and allowing the rolling element 16 to take its original shape indicated in figure 2 by the dotted line.

After passing through the expansion device 5 in the branch BP low pressure refrigerant enters the evaporator 6 and performs the cooling process of the refrigeration device, even if the compressor 1 is switched off. This allows you to compensate for the energy used to turn the compressor 1 with the aim of creating a vacuum inside the container 13.

As in the channel 11 and the inside of the container 13 was created by the vacuum, to generate the so effortlessly detach the container 13 from the coupling element 12, it is enough to open the valve 14 to allow air to pass into the channel 11, thereby reducing the pressure therein. At this stage it is possible to create a vacuum inside the new container 13 by connecting it with the means to create a vacuum through the connecting element 12 and by running through the electronic system 8 control new cycle of creation of the vacuum.

The movable element 16 in accordance with the present invention may have a construction similar to that used in mechanical, thermal, i.e. spiral element enclosed in a metal sheath. The size of the pump 10 and the rolling element 16 can vary, in particular depending on design and/or branches of the refrigeration device, for example, to not take up too much space inside the refrigeration unit. It is likely that if the pump 10 and the movable element 16 is small, one turn of the rolling element will not be enough to create a vacuum level desired by the user, inside the container 13. In these cases, however, it will be enough to repeat the cycle of creating a vacuum inside the container 13 several times until the level of vacuum inside the container 13 will not become necessary for the user.

Therefore, the principle of the cooling device, which is the purpose of this and the finding, can be described on the basis of the combined cooling method and create a vacuum with the use of cooling devices, containing the cold chain, which is divided into the branch high pressure and branch low pressure, and means for creating a vacuum inside the container, connected to the branch of the low-pressure circuit of a cooling system in which the circuit performs the normal cooling of the refrigeration cycle to cool the cooling device, at least one cycle to create a vacuum in the container that runs between them.

If the means for creating a vacuum are small, the cold chain can perform several successive cycles of vacuum to create a vacuum inside the same container.

Distinctive features of the present invention and its advantages are apparent from this description.

In particular, the connection means for creating a vacuum with a branch of the low-pressure circuit cooling allows the use of a pressure difference inside the chain cooling to create a vacuum inside the container, in which the pump uses the periodic pressure change of the refrigerant circuit cooling.

Another advantage of the present invention is the use of the compressor circuit cooling not only for the circulation of refrigerant within the cooling circuit is, but also to create a vacuum inside the container. This inevitably entails significant energy savings, taking into account that stage cooling stage after the creation of a vacuum inside the container comes with the compressor off, i.e. without energy consumption specified by the compressor.

Another advantage of the device in accordance with the present invention is that the number of elements of the cold chain, and means for creating a vacuum is much less than required for cooling devices of the prior art; therefore, the distinct advantages offered by this solution are obvious in terms of cost and reliability of the entire device.

Obviously, many other modifications and applications of the refrigeration device, described here as an example, it is possible for experts in the field of technology and that in the practical implementation of the present invention may have shapes and sizes that differ from those described or substituted by other technically equivalent elements.

Along with there are various changes in the valves of the pump can be directly regulated by the electronic control system of the refrigeration device. In addition, this option will allow to improve the work of ustroystvo.ranee and create a vacuum, which is the purpose of the present invention, as well as to fully use the potential of the specified electronic control system.

Therefore, it is easy to understand that the present invention is not limited to the above device, and may include many changes, improvements or replacements of equivalent parts and elements without departing from the essence of novelty of the idea of the invention as defined in the following claims.

1. Combined cooling unit and a vacuum containing the cold chain, preferably containing a compressor for compressing refrigerant, a condenser for condensing the refrigerant coming from the compressor, an expansion device to lower the pressure in the refrigerant and at least one evaporator for evaporating refrigerant and the cold chain is divided into the branch high pressure and branch low pressure, means for creating a vacuum inside the container, characterized in that the means for creating a vacuum connected to a branch of the low-pressure circuit cooling for the use of the pressure difference generated in the circuit cooling, to create a vacuum in the container.

2. The device according to claim 1, characterized in that the means for creating a vacuum contain a pump, preferably a positive displacement pump that uses periodic from the change of the pressure of the refrigerant, in-circuit cooling.

3. The device according to claim 2, characterized in that the pump housing is divided into the first cavity and the second cavity with the aid of the moveable element.

4. The device according to claim 3, wherein the movable element includes a spiral element enclosed in a metal sheath.

5. The device according to claim 3, characterized in that the volume and pressure in the first cavity and the second cavity of the pump housing vary depending on deformation of the rolling element.

6. The device according to claim 2, characterized in that the means for creating a vacuum contain the channel and the connecting element for connection of the pump with the container.

7. The device according to claim 3, characterized in that the first cavity of the pump housing is connected to the channel, which connects the pump with the container through a single valve.

8. The device according to claim 3, characterized in that the first cavity of the pump casing is connected with the atmosphere through another valve.

9. Device according to claims 7 and 8, characterized in that the valves are mechanical valves that open and close depending on the pressure in the first cavity of the pump housing.

10. Device according to claims 7 and 8, characterized in that it comprises an electronic control system, and these valves are regulated by the electronic system for the management.

11. The device according to claim 6, characterized in that the connecting element is installed in the separating device, preferably on the inner wall of the device.

12. The device according to claim 6, wherein the channel includes a valve, in particular a normally closed valve, the air flow in the channel.

13. The device according to claim 1, characterized in that the cold chain is able to operate in two modes, in particular in the first cooling mode and the second mode of the vacuum.

14. The device according to claim 1, characterized in that the cold chain contains a first valve mounted in the branch high pressure, in particular, on the output side capacitor and a normally open circuit cooling, thus preventing the passage of refrigerant from the branch high pressure in the branch of low pressure.

15. The device according to claim 1, characterized in that the cold chain contains a second valve mounted in the branches of low pressure, in particular, on the outlet side of the evaporator, and connecting means for creating vacuum with a branch of the low-pressure circuit cooling.

16. The device according to 14, characterized in that it contains an electronic control system and a second valve mounted in the branches of low pressure, in particular, on the outlet side of the evaporator, and connecting means for creating vacuum with a branch of the low-pressure circuit cooling, while the first choice of the valve circuit cooling and/or the second valve circuit cooling capable adjusted by means of an electronic control system.

17. The device according to claim 3, characterized in that the second cavity is connected with a branch of the low-pressure circuit cooling through the second valve circuit cooling installed in the branches of low pressure, in particular, on the outlet side of the evaporator, and connecting means for creating vacuum with a branch of the low-pressure circuit cooling.

18. The device according to claim 1, characterized in that the compressor is controlled by a thermostat that regulates the temperature inside the device.

19. The device according to p, characterized in that it contains an electronic control system designed to control the compressor regardless of the status of the specified thermal relay.

20. The device according to claim 1, characterized in that the cold chain contains a filter, in particular mounted on the inlet side of the expansion device that is designed to capture any polluting particles in the chain of cooling to prevent clogging of the expansion device.

21. The method combined cooling and vacuum using a cooling device containing circuit cooling divided by the branch high pressure and branch low pressure, and means for creating a vacuum inside the container, connected with a branch of the low-pressure circuit of a cooling system in accordance with which the circuit of the cooling performed the conventional refrigeration cycles for cooling devices, at least one cycle of creating a vacuum in the container that runs between them.

22. The method according to item 21, wherein the cold chain performs several successive cycles of vacuum to create a vacuum inside the same container.



 

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13 cl, 3 dwg

FIELD: heating.

SUBSTANCE: cooling facility (1) consists of compartment (2) for fresh food, of freezing chamber (3), of compressor (4), of heater (7) in compartment (2) for fresh food and of regulating switch (9) facilitating for user to select mode of fast freezing or working mode, notably, modes change between maximal and minimal values, therefore, setting temperature of compressor (4) activating and/or deactivating. Also the facility consists of thermostat (8) measuring temperature of compartment (2) for fresh food to turn on or off compressor (4) depending on position of regulating button (9). If regulating button (9) is set to the mode of fast freezing, heater (7) is activated at temperature below deactivating temperature of compressor (4) under the mode of maximum cooling and above temperature of deactivating compressor (4) under the mode of fast freezing; heater (7) remains activated till the process of fast freezing completes or till temperature rises above deactivating temperature of compressor (4) under the maximal mode.

EFFECT: invention facilitates eliminating uncontrolled heating of compartment for fresh food and reducing power consumption for user.

3 cl, 3 dwg

FIELD: household goods and personal effects.

SUBSTANCE: refrigerator counter contains counter platform, which supports the goods being cooled, cooling device, air stream generation device and sterilisation device to sterilise cold air. All these devices are installed near one of the counter vertical walls. Refrigerator counter is equipped with back wall, which contains at least two covers. First of them, being opened, provides access to the sterilisation device. Second cover, being opened, provides access to at least either cooling device or ventilation device.

EFFECT: easy access to cooling and ventilation devices for maintenance, repair and cleaning.

10 cl, 3 dwg

Refrigerator // 2350859

FIELD: heating.

SUBSTANCE: refrigerator consists of a housing containing a freezing compartment and a chilling compartment (the former positioned underneath the latter), a door for opening and closing the chilling compartment, an ice chamber (arranged on the door inside thus positioned inside the chilling compartment while the door is closed), a heat exchanger generating chilled air and a chilled air directing unit that delivers the chilled air generated by the heat exchanger into the ice chamber to provide for generation of ice therein.

EFFECT: facilitated retrieval of ice from the ice chamber.

30 cl, 22 dwg

Refrigerator // 2350858

FIELD: heating.

SUBSTANCE: refrigerator consists of a switchable temperature compartment, a cooler unit generating chilled air, a blower fan, an inlet valve for opening/closing the air supply duct connecting the cooler unit to the blower fan, a check valve for opening/closing the air recovery duct connecting the cooler unit to the outlet port therethrough air is discharged from the switchable temperature compartment and a regulator valve for opening/closing the air connective duct connecting the circulation port arranged in the switchable temperature compartment to the blower fan inlet side. When the inlet valve and the check valve are open the regulator valve is shut off; when the regulator valve is open the inlet valve and the check valve are shut off. A single damper on recovery of air from the switchable temperature compartment is used both as the check valve and the regulator valve. There is a single port arranged to be used both for outlet and circulation with the air recovery duct and the connective duct branching from the port separated by the damper on recovery of air from the switchable temperature compartment. The above damper has a two-way diaphragm switching between its two positions thus alternately shutting off the connective duct and the air recovery duct.

EFFECT: uniform distribution of temperature.

12 cl, 11 dwg

FIELD: heating.

SUBSTANCE: refrigerator cabinet with outer frame to form appearance and inner frame to form inner refrigerator part; space between the outer and inner frames is filled with foam insulation material and comprises sunk sections which are concave inside the inner frame and convex outside it in the direction of the inner frame thickness to fix the element to be installed and fastened on the inner side of the inner frame, reinforcing elements are set so that to be closely coupled with sunk sections on the outer side of the inner frame to reinforce the sunk sections.

EFFECT: facilitating foam filling, preventing penetration of foam insulation material into the refrigerator inside.

5 cl, 7 dwg

FIELD: heating.

SUBSTANCE: refrigerator for operation with use of low climatic temperatures contains a heat-insulated case with freezing and refrigerating sections, refrigerator set which evaporator is installed in the freezing section, heat rejection device for abstracting heat from the refrigerating section, the said heat rejection device being made in the form of a thermal pipe which condenser site is installed so as to maintain thermal contact with the refrigerator set evaporator. The thermal pipe evaporation site is located in the refrigerating section. To highways of the refrigerator set detachably jointed is a condenser with separate channels for gas and liquid, arranged outside the heated premises, on which gas supply highway a NO return valve is arranged. The thermal pipe rejecting heat from the refrigerating section to the freezing one is equipped with separate channels for gas and liquid, with a NO valve installed on the gas channel. The refrigerator shell also incorporates an in-built heater and remotely programmed processor connected, by means of control circuits, to the refrigerator set compressor, thermal pipe valve and the heater and, by means of metering circuits, to environment temperature gauge and temperature gauges in freezing and refrigerating sections of the refrigerator.

EFFECT: invention enables independent temperature adjustment in refrigerating and freezing sections of refrigerator.

2 dwg

Refrigerator // 2338133

FIELD: heating.

SUBSTANCE: refrigerator includes refrigerating chamber, which is arranged accordingly in top part of refrigerator body, and freezing chamber, which is arranged accordingly in bottom part of refrigerator body, contains ice-generating chamber, which is separated in refrigerating chamber by means of isolating partitions and contains ice generator for generation of ice and ice storage for storage of ice produced in ice generator, one or several heat-exchanges that serve as composite parts of heat exchanging cycle for creation of cold air and regulation of temperatures in refrigerating and freezing chambers, and give-out device that communicates with ice storage and is installed on the door. Application of this invention provides minimum losses of cold air in case of door opening, simplification of give-out device for water supply.

EFFECT: provision of minimum losses of cold air in case of door opening, simplification of give-out device for water supply.

32 cl, 7 dwg

FIELD: heating.

SUBSTANCE: invention relates to cooling compartments, refrigerators with proper cooling compartments and methods of control. Super-cooling device contains storage compartments and super-cooling compartments. Storage compartments are supplied with cooled air from cooled air supply unit. Super-cooling compartment is inside storage compartment. Air-cooled super-cooling compartment cools down products. It consists of container and cover. Container forms free space for product storage. Cover is used for opening and closing container outlet. There are holes in cover for cooling air supply to and from super-cooling compartment. There is also a screen in cover to open and close holes. In addition, super-cooling plant contains temperature sensor inside super-cooling compartment and control unit.

EFFECT: development of refrigerator and control method, which may keep drinking compartment temperature at optimal levels and produce super-cooled drink in fast manner.

26 cl, 11 dwg

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