Water level pickup for steam generator incorporated with washing of drying machine and steam generator with this pickup

FIELD: mechanics.

SUBSTANCE: steam generator of washing or drying machine comprises housing to keep water intended for steam generation and separate-type water level pickup. The latter comprises common electrode assembly built in the said housing and including common electrode and common electrode mount. It comprises also the first water level electrode assembly made up of the first water level electrode and its mount. Aforesaid assembly is separated from the common electrode assembly and fitted into the housing. The common electrode assembly additionally incorporates the second water level electrode.

EFFECT: elimination of improper operation caused by connection of electrodes due to ingress of water into electrodes leadouts.

6 cl, 5 dwg

 

The technical field to which the invention relates

The present invention relates to a water level sensor installed in the steam generator of the washing or drying machines, and, more particularly, to a water level sensor separate type and the steam generator of the washing or drying machine containing it.

The level of technology

Generally, a washing machine is used for washing and drying machine is used for drying the wet cloth using hot air after washing. Lately, washing, drying machine having the function of washing and drying, has become widely used.

In particular, washing machines are classified into a vibrating washing machine that washes linen using water flow generated by the rotation of the flat plate of the pulsator, and a washing machine drum, which wash clothes by using fall on top of water for washing and friction between water for Laundry and linen, which arise in the drum due to the rotation of the drum.

Compared with the vibrating washing machine drum machine type uses a small amount of water and detergent, and does not cause damage to the linen and tangling the sheets, thus taking advantage of the high demand.

Below, with reference to figure 1-budet described the design of the steam generator conventional washing machine drum type.

As shown in figure 1, the conventional washing machine drum includes a housing 10 forming the external appearance of the washing machine, a cylindrical tank 20, supported in the housing 10, the water content of the Laundry, the drum 30, is made with a through hole for the passage of water for washing and steam and mounted for rotation in the tank 20, the drive motor 40 for driving the drum 30 and at least one steam generator 50 for supplying steam to the interior of drum 30.

The aperture 13, which is connected with the interior of the drum 30 for a load of Laundry in the washing machine and unloading of the washing machine, is formed on the front surface of the housing 10 and the door 11 for opening and closing the opening 13 is installed with the possibility of rotation on the front surface of the housing 10.

In addition, a gasket (not shown) to prevent leakage of water for washing through the connecting part between the door 11 and the tank 20 is installed along the inner circular surface of the opening 13.

The valve 15 water supply connected to the external water supply pipe (not shown) for supplying water to the washing tank 20 is installed on one side of the washing machine drum type.

The steam generator 50 is connected to the valve 15 water supply to receive water for washing, heats water for washing, contained therein for the gene for the emission of steam, and supplies the generated steam into the drum 30.

Pipe 54 for supplying steam to be used as a channel for directing steam generated in the steam generator 50, in the inner part of the drum 30, and the pipe 55 to supply water to supply water for washing from the valve 15 to supply water to the steam generator 50 is installed on one side of the steam generator 50.

Preferably, the pipe 54 for supplying steam has an end in the form of nozzles for uniform spraying steam into the interior of the drum 30, and the end of the pipe 54 to the steam opens in the inner part of the drum 30.

To prevent direct contact of steam sprayed into the inner part of the drum 30, with linen, preferably, the end of the pipe 54 to the steam supply connected to the drum 30, is connected to one side of the upper part of the drum 30 and passes through the strip.

In addition, preferably, the pipe 54 for supplying steam and pipe 55 to supply water have a relatively small length, and the steam generator 50 is mounted above the tank 20, so that the steam generator 50 is easy to repair and check.

With reference to figure 2 describes the design of the steam generator 50, as described below.

As shown in figure 2, the steam generator 50 includes a base body 51 forming the external appearance of the steam generator 50 and having a space for storing water, the body 52 of the cover connected to the top surface is rnostly base body 51, and the heater 53 for heating the water contained in the steam generator 50.

A hole (not shown) for supplying water is connected to the pipe 55 for water supply for supplying water to the interior of the steam generator 50, is formed on one side of the housing cover 52, and the hole 54a to release the water, connected to the pipe 54 for supplying steam to release the generated steam into the drum 30, is formed on the other side of the housing 52 of the lid.

The heater 53 is installed in the lower part of the base body 51. Preferably, when water in the steam generator 50, the heater 53 is directly heats the water, provided that the heater 53 is fully immersed in water.

The sensor 60 water level measurement water level in the steam generator 50, to maintain the appropriate amount of accumulated water is installed on the housing 52 of the lid.

That is, when the water level in the steam generator 50 is below the reference value, the sensor 60 water level opens the valve 15 to supply water for additional water in the steam generator 50, and when the water level in the steam generator 50 is above the reference value, the sensor 60 water level closes the valve 15 of the water supply to stop the supply of water and activates a heater 53 for steam generation.

With reference to figure 3 describes the design of the sensor 60 water level, as set forth below.

The sensor 60 water level contains a CR is lending support 61, forming the external appearance of the sensor 60 water level and attached to the steam generator 50, and the electrodes 62, 63 and 64 mounted on the bottom support 61 for measuring the water level in the steam generator 50. The ends of the electrodes 62, 63 and 64 are open and in contact with the water, and the other ends of the electrodes 62, 63 and 64 are made with pins 67, 68 and 69 are electrically connected to an external device.

Bearing 61 is attached to the outer surface of the base housing 51 by means of bolts and a plug (not shown) for electrical connection with an external device is inserted with the possibility of retention in the upper part of the support 61.

The electrodes 62, 63 and 64 mounted on the corresponding heights from the bottom surface of the base body 51 for measuring the water level in the steam generator 50.

For example, the electrodes 62, 63 and 64 are composed of a common electrode 62, which serves as a reference electrode for measuring water level electrode 63 of the lower water level to measure the lower water level electrode 64 of the upper water level to measure the top water level.

Here, the electrode 63 of the lower water level measures the minimum water level at which the heater 53 is not overheating.

The common electrode 62 has a length that is not less than the length of the electrode 63 of the lower water level.

When the common electrode 62 and the electrode 63 of the lower water level sensor 60 water level submerged in water is, contained in the steam generator 50, the common electrode 62 and the electrode 63 of the lower water level is electrically connected with water, thus measuring the lower water level.

In addition, when the water level in the steam generator 50 is increased and the common electrode 62, the electrode 63 of the lower water level and the electrode 64 of the upper water level sensor 60 water level submerged in water contained in the steam generator 50, the common electrode 62 and the electrode 64 of the upper water level is electrically connected through the water, thereby measuring the upper water level.

However, this sensor 60 normal water level of the steam generator of the washing machine drum type has several disadvantages as set forth below.

When the electrodes 62, 63 and 64 is immersed in water, so that the current passes between the electrodes 62, 63 and 64, the sensor 60 water level generates a signal reading. Therefore, when the insulation between terminals 67, 68 and 69 is damaged, the sensor 60 water level generates the wrong signal readout, thus incorrectly actuating.

That is, the water penetrates into the part of the sensor 60 water level, into which is inserted a plug (not shown), due to the temperature difference inside and outside of the steam generator 50, the steam condensation and water spray.

In this case there is a capillary phenomenon along the connecting part between the support 61 and the housing in the CTL (not shown), in the result of which is formed a layer of water. In this regard, the conclusions 67, 68 and 69 are connected incorrectly, and thus, the sensor 60 water level generates an incorrect signal level measurement water.

Since the distance between the common electrode 62 and the electrode 63 of the lower water level is relatively small, and the height of the common electrode 62 is equal to the height of the electrode 63 of the lower water level, the common electrode 62 and the electrode 63 of the lower water level can be connected incorrectly because of the presence of foreign substances, even when in the steam generator 50 is no water, and thus, the sensor 60 water level correctly generates the measuring signal of the water level.

Therefore, in the case in which the sensor 60 water level correctly generates the measuring signal of the upper water level when the water contained in the steam generator 50, essentially reaches the lower water level, or incorrectly generates the measuring signal of the lower water level when the water contained in the steam generator 50, essentially does not reach the minimum water level, the heater 53 runs continuously in the conditions when the heater 53 is not immersed in water and, thus, is overheating.

In this case, overheating of the heater 53 causes thermal deformation and the ignition housing cover 52 and, thus, causes a fire hazard.

In addition, vsledstvii the overheating of the heater 53 is excessively consumed electricity and water, thus causing economic losses.

Disclosure of invention

The technical problem

The aim of the present invention aimed at solving the tasks is the creation of a water level sensor for steam generator of the washing or drying machine, which prevents incorrect operation, caused by an electrical connection between the electrodes due to water penetration into the terminals of the electrodes, and an incorrect actuation, due to the short distance between pins, in order to constantly maintain the water level in the steam generator and to protect the heater and steam generator containing it.

Technical solution

The purpose of the present invention can be achieved by creating a steam generator of the washing or drying machine comprising a housing for storing water for generating steam; and a water level sensor separate type containing the common node electrode, a common electrode and a support common electrode, and is inserted into the housing; and a node electrode of the first water level, containing the electrode of the first water level and the support electrode of the first water level, separated from the common node electrode and inserted into the case.

In the case in which a heater for heating water to generate steam is installed in the housing, preferably to the green electrode of the first water level measured water level, when the heater is open. When the amount of water contained in the enclosure is small, so that the heater operates continuously under the condition that the heater is not covered with water, the heater is overheated, thereby creating a security problem. Therefore, when measuring the water level at which the heater is open, the wrong operation of the water level sensor must be excluded.

When measuring a first level of water using node electrode of the first water level is the value of the electric voltage of the electrode of the first water level, and, preferably, utilizes the fact that whether connected electrically to the electrode of the first water level and the common electrode or not. Therefore, it is preferable that one end of the common electrode was located at a lower altitude or at the same height as the height of one end of the electrode of the first level of water in the body.

When the water level in the steam generator above the first water level, the common electrode and the electrode of the first water level are connected electrically, and when the water level in the steam generator is decreased due to generation of steam and the end electrode of the first water level is not in contact with water, between the common electrode and the electrode of the first water level short circuit occurs. Thus, the first measured level of the water.

P is because the electrode of the first water level and the common electrode respectively mounted on separate supports, conclusions electrode of the first water level and a common electrode connected to the control device is not electrically connected due to moisture.

In addition, since the electrode of the first water level and the common electrode are apart from each other at a sufficient distance, it is possible to prevent incorrect operation of the water level sensor caused by an electrical connection between the ends of the two electrodes in the body due to the presence of water droplets or foreign matter.

The common node electrode may further comprise a second electrode water level. Preferably, the electrode of the second water level measures the second water level, which is higher than the first water level. In addition, preferably, the electrode of the second water level measure the maximum water level in the body.

Preferably, the common electrode and the electrode of the second water level is installed on the support of the common electrode, under which two electrodes are located at a sufficient distance from each other. The reason electrode of the second level of the water separated from the common electrode, the same as the reason why the electrode of the first level of water separated from the common electrode.

In addition, when measuring the second water level using the electrode of the second water level is used the value of the electric voltage of the electrode of the second water level, uedineny whether electrically connected to the electrode of the second water level and the common electrode or not.

Preferably, each, and the common node electrode and electrode node of the first water level, is the outlet, so that the outer plug is inserted into the common node electrode and electrode node of the first water level and electrically connects with them. The water level sensor is electrically connected with the control device by installing plug control device outlet nodes.

Beneficial effects

The water level sensor of the present invention has several useful effects as set forth below.

First, since the common electrode and the electrode of the first water level are separated from each other, it is possible to prevent incorrect operation of the water level sensor caused by an electrical connection between two electrodes.

Secondly, because the output of the common electrode and the output electrode of the second water level is located at a distance from each other, so that between the two electrodes is formed of a partition, and the output of the common electrode and the output electrode of the first water level are separated from each other, it is possible to prevent formation of a water film between the electrodes, condensation or splash of water, thus preventing incorrect operation of the water level sensor.

Brief description of drawings

The accompanying drawings, which are included to provide further understanding of the Oia of the present invention, illustrate embodiments of and together with the description serve to explain the principles of the present invention.

In the drawings:

figure 1 is a perspective view of a conventional washing machine drum type, equipped with a steam generator;

figure 2 is a perspective view of the steam generator;

figure 3 is a front view of the water level sensor figure 2;

4 is a perspective view of the steam generator containing a water level sensor in accordance with the embodiment of the present invention;

5 is a front view illustrating a water level sensor and water level sensor for heater protection figure 4.

The implementation of the invention

Details will be made reference to the preferred implementation of the present invention, examples of which are illustrated in the accompanying drawings. Where possible, the same reference numbers will be used on the drawings to refer to same or similar elements.

Below, with reference to figure 4 and 5 will be described a water level sensor for steam generator of the washing machine drum in accordance with the embodiment of the present invention.

In this embodiment, a water level sensor for measuring the water level in the steam generator 150 includes a node 160 of the common electrode and the node electrode 170 of the first water level.

Node 170 of the first electrode, Ural branch of the nya water measures water level, when the heater is installed in the housing, is closed by water.

Node 160 common electrode comprises a support 161 of the common node electrode, installed in the steam generator 150, a common electrode electrode 162 and 164 of the second water level to measure the second water level. The host part 160 of the common electrode, which is located outside of the steam generator has an outlet so that the plug (not shown) of the control device inserted into the socket part of the node 160 of the common electrode. When the plug control device inserted in the socket of a node 160 of the common electrode, the conclusions 167 and 169 of the common electrode electrode 162 and 164 of the second water level is electrically connected with the plug, thus electrically connecting the control device and the node 160 common electrode.

The electrode 164 of the second water level measure the maximum water level in the housing. For incremental measurement of the water level can be set for the third and fourth electrodes with a height below the height of the electrode 164 of the second water level.

Preferably, the node 160 of the common electrode, the common electrode 162 and the electrode 164 of the second water level are from each other at a distance at which at least can be installed one electrode.

To prevent electrical connection of the output 167 of the common electrode with the output 169 of the electrode of the second level of the water due to water plait is coy, condensation or water spray, it is preferable that the output 167 of the common electrode and the output 169 of the electrode of the second water level was located at a sufficient distance from each other and, more preferably, between two terminals 167 and 169 were formed partitions.

When both ends of the common electrode electrode 162 and 164 of the second level of the water in contact with water in the case, the common electrode 162 and the electrode 164 of the second water level is electrically connected, thus measuring a second water level.

The node electrode 170 of the first water level comprises a support 171 of the first electrode, forming the appearance of the node electrode 170 of the first water level, and the electrode 172 of the first water level, mounted on a support 171 for measuring the water level in the steam generator 150. As in the node 160 of the common electrode, the portion of the node electrode 170 of the first water level, which is located outside of the steam generator 150 has an outlet.

Coil heater, which is installed outside the steam generator 150 and heats the water contained in the steam generator 150 may be used as a heater 153 of the steam generator 150. More preferably, the heater in the shell, which is completely immersed in the water contained in the steam generator 150, and directly heats the water which is used as a heater 153 of the steam generator 150 to increase aloway efficiency and to boil water in a short period of time.

In this case, the height of the end of the common electrode 162 is equal to the height of the electrode end 172 of the first water level.

The height of the end of the common electrode 162 may be lower than the height of the electrode end 172 of the first water level, or the end of the common electrode 162 may be located on the water level, measured by the electrode 172 of the first water level, and the end electrode 172 of the first water level is below the end of the common electrode 162.

To prevent electrical connection of the common electrode 162 with the electrode 172 of the first water level, caused by extraneous substances, the node 160 of the common electrode and the node electrode 170 of the first water level spaced from each other at a sufficient distance.

When both ends of the electrode 172 of the first water level and the common electrode 162 are in contact with water in the housing, the electrode 172 of the first water level and the common electrode 162 is electrically connected, thus measuring the first water level.

Industrial applicability

The present invention describes a water level sensor separate type and the steam generator of the washing or drying machine containing it.

The water level sensor of the present invention has several useful effects as set forth below.

First, since the common electrode and the electrode of the first water level are separated from each other, it is possible to prevent wrong with Abadiania the water level sensor, caused by an electrical connection between two electrodes.

Secondly, because the output of the common electrode and the output electrode of the second water level is located at a distance from each other, so that between the two electrodes is formed of a partition, and the output of the common electrode and the output electrode of the first water level are separated from each other, it is possible to prevent formation of a water film between the electrodes, condensation or splash of water, thus preventing incorrect operation of the water level sensor.

Specialists in the art will understand that various modifications and changes in the present invention without departing from the essence and scope of the present invention. Thus, it is understood that the present invention includes modifications and changes of the present invention provided that they are included in the scope of the attached claims and their equivalents.

1. The steam generator of the washing or drying machine, comprising a housing for storing water for generating steam and the water level sensor separate type including inserted into the housing the common node electrode, a common electrode and a support common electrode, and separated from the common node electrode and inserted into the housing electrode node of the first level of the water containing the electrode of the first water level and the pore electrode of the first water level.

2. The steam generator according to claim 1, in which the common node electrode further comprises a second electrode water level.

3. The steam generator according to claim 1, in which each, and the common node electrode, and electrode node of the first water level, is the outlet, so that an external plug inserted into the socket for electrical connection with the node of the common electrode and the node electrode of the first water level.

4. The steam generator according to claim 1, additionally containing a heater mounted in the housing for storing water, in which the electrode of the first water level measures the water level, of which at least is part of the heater.

5. The water level sensor separate type for the steam generator containing the common node electrode, a common electrode and a support common electrode, and electrode node of the first water level, separated from the common node electrode containing the electrode of the first water level and the support electrode of the first water level.

6. The water level sensor separate type according to claim 5, in which the common node electrode further comprises a second electrode water level.



 

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