CN217938158U - Heat pump system and dish washer - Google Patents
Heat pump system and dish washer Download PDFInfo
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- CN217938158U CN217938158U CN202222291336.0U CN202222291336U CN217938158U CN 217938158 U CN217938158 U CN 217938158U CN 202222291336 U CN202222291336 U CN 202222291336U CN 217938158 U CN217938158 U CN 217938158U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The application relates to a heat pump system and a dish washing machine. The heat pump system comprises a compressor, a condenser, a throttling device and an evaporator; at least a refrigerant pipe is connected between the outlet of the compressor and the inlet of the condenser, at least a refrigerant pipe is connected between the outlet of the condenser and the inlet of the throttling device, at least a refrigerant pipe is connected between the outlet of the throttling device and the inlet of the evaporator, and at least a refrigerant pipe is connected between the outlet of the evaporator and the inlet of the compressor; the condenser can be in heat-conducting contact with water of a water tank of the dishwasher to warm the water. The dish washing machine comprising the heat pump system has the advantages of high heating efficiency and low energy consumption.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a heat pump system and dish washer.
Background
At present, household appliances, such as water heaters and dish washers, usually use electric heating to heat water temperature; the electric heating mode has large power consumption and low efficiency; is not beneficial to energy conservation and emission reduction. Therefore, heat pump technology is developed, a heat pump is a device for transferring heat energy of a low-level heat source to a high-level heat source, and the working principle of the heat pump is to force heat to flow from a low-temperature object to a high-temperature object in a reverse circulation mode.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a heat pump system and a dishwasher, which can heat water in the dishwasher, thereby reducing power consumption of the dishwasher.
In order to solve the above technical problem, the embodiment of the present application provides the following technical solutions:
a heat pump system, suitable for a dishwasher, comprising a compressor, a condenser, a throttle device and an evaporator; at least a refrigerant pipe is connected between the outlet of the compressor and the inlet of the condenser, at least a refrigerant pipe is connected between the outlet of the condenser and the inlet of the throttling device, at least a refrigerant pipe is connected between the outlet of the throttling device and the inlet of the evaporator, and at least a refrigerant pipe is connected between the outlet of the evaporator and the inlet of the compressor; the condenser can be in heat-conducting contact with water of a water tank of the dishwasher to warm the water.
In one embodiment, the condenser further comprises a heating wire and a dry filter, wherein the heating wire is arranged on a refrigerant pipe between the outlet of the compressor and the inlet of the condenser; the dry filter is arranged between the throttling device and the condenser, at least a refrigerant pipe is connected between the outlet of the condenser and the inlet of the dry filter, and at least a refrigerant pipe is connected between the outlet of the dry filter and the inlet of the throttling device.
The embodiment of the application also provides a dish washing machine, which comprises the heat pump system, the water tank, the water pump, the water pipe, the spray head and the storage rack; the water pump is at least partially positioned in the water tank; one end of the water pipe is communicated with the water pump, the other end of the water pipe is communicated with the spray head, and the spray head is positioned on one side of the storage rack.
In one embodiment, the air conditioner further comprises a first air duct; the first air channel is communicated with a space where a compressor of the heat pump system is located and an external space; the evaporator of the heat pump system is at least partially positioned in the first air duct; the dishwasher further comprises a first fan; the first fan is located in the first air duct.
In one embodiment, the air conditioner further comprises a first air door, a second air door and a motor; the first air duct is provided with an air port; the air port is positioned at the cross position of the space where the first air channel and the compressor are positioned, and the motor is connected with the second air door and can control the second air door to close or open the air port; the first air door is positioned in a first air duct and can control the connection or disconnection of the first air duct and the external space.
In one embodiment, a second air duct is further included; the second air duct can be communicated with the first air duct; the second air channel is communicated with the space where the condenser is located and the space where the storage rack is located.
In one embodiment, the air conditioner further comprises a second fan and a third air door, wherein the second fan is positioned in the second air duct; the third air door is positioned in the second air duct and can control the connection or disconnection of the second air duct and the first air duct.
In one embodiment, a condenser of the heat pump system is at least partially disposed in the water tank.
In one embodiment, further comprises a water inlet and a water outlet; the water inlet is positioned above the water tank; the water outlet is positioned at the bottom of the water tank.
In one embodiment, the water tank further comprises a floating ball, the floating ball is located in the water tank and connected with the water inlet switch which is arranged at the water inlet and used for controlling the on and off of the water inlet switch.
The embodiment of the application provides a heat pump system, which comprises a compressor, a condenser, a throttling device and an evaporator; the condenser is capable of being in heat conducting contact with water of a water tank of the dishwasher. When the heat pump system works, the condenser heats water. The water is heated by the heat pump principle, the heating efficiency is high, and the energy consumption is low.
The embodiment of the application also provides a dish washing machine which comprises the heat pump system, the water tank, the water pump, the water pipe, the spray head and the storage rack. The heat pump system can heat water in the water tank, the water pump pumps the heated water to the spray head through the water pipe, and the spray head sprays hot water to clean tableware on the object shelf, so that the heating efficiency is high, and the energy consumption is low.
Drawings
FIG. 1 is a schematic view of a heat pump system of a dishwasher provided in an embodiment of the present application;
FIG. 2 is a schematic view of a dishwasher provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of a dishwasher disclosed in an embodiment of the present application during drying and dehumidifying;
FIG. 4 is a flow chart of a method of operating a dishwasher as disclosed in an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. The following examples are, however, merely preferred and not intended to be exhaustive of the invention. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, which all belong to the protection scope of the present invention.
In the following description, the appearances of the indicating orientation or positional relationship, such as the terms "inner", "outer", "upper", "lower", "left", "right", etc., are only for convenience in describing the embodiments and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. (electrical) connection includes direct (electrical) connection and also includes indirect (electrical) connection.
At present, a dish washer generally adopts an electric heating or heat pump system with a complex structure and a plurality of pipelines for reversing to clean tableware after heating water, and has the defects that: the method has the advantages of high power, high power consumption, low efficiency, high cost, difficulty in large-scale production, incomplete drying after cleaning and easy bacterial breeding of residual water.
Based on this, the embodiment of the present application provides a heat pump system, which is suitable for a dishwasher, as shown in fig. 1, the heat pump system includes a compressor 1, a condenser 3, a throttling device 5, an evaporator 6 and a water pump 14; at least a refrigerant pipe is connected between the outlet of the compressor 1 and the inlet of the condenser 3, at least a refrigerant pipe is connected between the outlet of the condenser 3 and the inlet of the throttling device 5, at least a refrigerant pipe is connected between the outlet of the throttling device 5 and the inlet of the evaporator 6, and at least a refrigerant pipe is connected between the outlet of the evaporator 6 and the inlet of the compressor 1; the condenser 3 can be in heat conductive contact with water of a water tank a of the dishwasher, warming the water. In this application, at least through refrigerant pipe intercommunication, form heat pump system between compressor 1, condenser 3, throttling arrangement 5 and the evaporimeter 6. When the heat pump system works, the condenser 3 releases heat, and the condenser 3 transfers the heat to the water of the dish washing machine in heat conduction contact with the condenser to heat the water. Specifically, the condenser 3 may be partially or completely placed in the water tank a, and the condenser 3 is in direct contact with water to conduct heat; the condenser can adopt a water-cooling pipe, and water and a refrigerant in the heat pump system conduct heat in the water-cooling pipe to heat water temperature. The condenser can also be a plate heat exchanger, and water is introduced into the plate heat exchanger, so that heat exchange with the plate heat exchanger is realized, and the water temperature is heated.
The dish washing machine comprising the heat pump system can utilize the heat pump principle to heat water, and the heated water is reused to wash tableware, so that the energy is saved, the efficiency is high, and the power consumption is low.
In addition to the refrigerant pipe, other devices such as a gas-liquid separator, a drying filter, etc. may be connected to the compressor 1, the condenser 3, the throttle device 5, and the evaporator 6 at appropriate positions. As shown in fig. 2 and 3, a dry filter 4 is further disposed between the condenser 3 and the throttling device 5, at least a refrigerant pipe is connected between an outlet of the condenser 3 and an inlet of the dry filter 4, and at least a refrigerant pipe is connected between an outlet of the dry filter 4 and an inlet of the throttling device 5. The drying filter 4 can filter out impurities in the refrigeration system, such as metal chips, various oxides, dust and the like, so as to prevent the impurities from blocking a capillary tube or damaging a compressor, and can absorb residual moisture in the refrigeration system, prevent ice blockage and reduce the corrosion of the moisture on the refrigeration system.
Further, in one embodiment, in order to improve the efficiency of the heat pump system, the heat pump system is provided to further comprise a heating wire 2; as shown in fig. 2 and 3, the heating wire 2 is disposed on the refrigerant pipe between the outlet of the compressor 1 and the inlet of the condenser 3; the heating efficiency of the system is low in a low-temperature environment (for example, the environment temperature is lower than 20 degrees), and the heating wires 2 heat the refrigerant pipes, so that the temperature of the refrigerant in the refrigerant pipes is increased, and the heating efficiency of the heat pump is further increased. The heating wire can be a PTC (positive temperature system) resistor or other heating films, and the PTC resistor and the heating films can generate heat when being electrified, so that the temperature of a refrigerant of the refrigerant pipe is increased, and when the temperature of the refrigerant is increased to a certain temperature (for example, more than 20 degrees), the heating efficiency of the heat pump system is greatly improved. The embodiment can not only improve the system efficiency at low temperature, but also prevent the system from being unusable at low temperature.
Based on the heat pump system suitable for the dish washing machine, the embodiment of the application further provides a dish washing machine, as shown in fig. 1, including the heat pump system, a water tank a, a water pump 14, a water pipe 15, a spray head 13 and a shelf 19; the water pump 14 is at least partially positioned in the water tank A; one end of the water pipe 15 is communicated with the water pump 14, the other end is communicated with the spray head 13, and the spray head 13 is positioned on one side, such as the upper side, of the commodity shelf 19. The condenser of the heat pump system is in heat transfer with water in the water tank A to heat the water, when the temperature reaches a preset temperature, the water pump 14 pumps hot water to the spray head through the water pipe 15, and the spray head 13 sprays the hot water to clean tableware on the object rack 19.
Further, in order to improve the efficiency of the heat pump system, as shown in fig. 2, the dishwasher further comprises a first air duct B; the first air duct B is communicated with a space where a compressor of the heat pump system is located and an external space; the evaporator 6 of the heat pump system is at least partially positioned in the first air duct B; the dishwasher further comprises a first fan 7; the first fan 7 is located in the first air duct B. When the washing, heat pump system work is to the water heating, and 6 endotherms of evaporimeter, and compressor 1 can release the heat because of work, and first fan 7 is with the first wind channel of outside air suction, and the air is earlier after 6 cooling through evaporimeter, flows to compressor 1 again, cools down compressor 1, keeps the good operating mode environment of compressor to can improve heat pump system's heating efficiency, also can prevent that the compressor is overheated, life-span is low.
As shown in fig. 2, further, in one embodiment, the dishwasher may further include a first damper 8, a second damper 9, and a motor 10; the first air duct B is provided with an air port 11; the air port 11 is located at the intersection of the first air duct B and the space where the compressor is located. The motor 10 is connected with the second air door 9 and can control the second air door 9 to close or open the air port 11; the motor can be a synchronous motor. The first damper 8 is located in a first air duct, and can control the connection or disconnection between the first air duct B and the external space. First air door 8 is opened, and when wind gap 11 was opened, first passageway B intercommunication exterior space and the space in compressor 1 place, when heat pump system heated water, can also dispel the heat and cool down the compressor simultaneously, improved heating efficiency.
As shown in fig. 3, in one embodiment, a second air duct C is provided in addition to the first air duct B; the second air duct C can be communicated with the first air duct B; the second air duct C communicates the space where the condenser 3 is located and the space where the rack 19 is located. In this embodiment, can realize carrying out the drying dehumidification to the tableware that washs through the second wind channel, during the drying dehumidification, heat pump system also works, and condenser 3 releases the heat, and the air flows to supporter 19 place space after the condenser 3 heating, carries out the drying dehumidification to the tableware on the supporter 19.
In the above embodiment, a second fan 16 and a third damper 17 may also be provided, the second fan 16 is located in the second air duct C; the third damper 17 is located in the second air duct C, and can control connection or disconnection between the second air duct and the first air duct. When drying and dehumidifying, the third air door 17 is opened, the second fan 16 works, the second air door 9 closes the air port 11, the air flows along the arrow direction shown in fig. 3, the evaporator 3 dehumidifies the air, the dehumidified air passes through the evaporator 6 to be heated and then flows to the tableware for drying and dehumidifying, and then flows to the evaporator 3 through the third air door 17 to complete a drying and dehumidifying cycle.
In the above embodiment, as shown in fig. 2 or 3, the dishwasher further includes a water inlet 12 and a water outlet 13; the water inlet 12 is positioned above the water tank A; the water outlet 13 is positioned at the bottom of the water tank A. Further, in one embodiment, the dishwasher further comprises a floating ball 18, the floating ball 18 is positioned in the water tank A, and the floating ball 10 is connected with the water inlet switch at the water inlet and used for controlling the opening and closing of the water inlet switch. When the water level reaches the floating ball, the water inlet stops discharging water. After the cleaning, the water is filtered and flows to the water tank A again, and then is discharged through the water outlet 13.
The embodiment of the application also provides a working method of the dishwasher, which is suitable for the dishwasher, and the dishwasher at least comprises two washing steps and a drying and dehumidifying step. As shown in fig. 4, the cleaning step:
s11: the heat pump system works to heat water: controlling the heat pump system to work, wherein the heat pump system works to heat water in the water tank A;
s12: judging whether the water temperature reaches a preset temperature:
s13: when the water temperature reaches a preset temperature, the heat pump system is controlled to stop working, the water pump 14 is controlled to work, and the water pump 14 pumps the heated water to the spray head 13 through the water pipe 15; the preset temperature may be 50 ℃ to 80 ℃, such as 70 ℃.
S14: and (3) spraying water by a spray head for cleaning: the spray head 13 sprays hot water to clean dishes placed on the rack.
As shown in fig. 2, when the dishwasher further comprises a first air duct B, a first fan 7, a first damper 8, a second damper 9 and a motor 10, the evaporator 6 of the heat pump system is at least partially located in the first air duct B; the first fan 7 is positioned in the first air duct B; the first air duct B is provided with an air port 11; the motor 10 is connected with the second air door 9 and can control the second air door 9 to close or open the air port 11; the first air door 8 is positioned in the first air duct; the cleaning step further comprises:
when the heat pump system works, the first air door 8 is controlled to be opened, the motor 10 is controlled to drive the second air door 9 to open the air port 11, so that the first air duct B is communicated with the space where the compressor is located, the first fan 7 is controlled to work, air flow in the external space is sucked by the first fan 7, enters the first air duct B from the first air door 8 and is cooled by the evaporator 6 to obtain cold air, and the cold air is diffused to the compressor through the air port 11 and is cooled by the compressor 1.
As shown in fig. 3, the dishwasher further includes a second duct C, a second fan 16, and a third damper 17; the third air door 17 is positioned in the second air duct C; the working method also comprises the following drying and dehumidifying steps after the cleaning is finished:
controlling the water pump 14 to stop working and controlling the first air door 8 to be closed;
controlling a motor 10 to drive a second air door 9 to close an air port 11; at the moment, the second air duct C is communicated with the first air duct B, and the first air duct B is not communicated with the space where the compressor 1 is located;
controlling the second fan 16 to work, controlling the first fan 7 to work, and controlling the third air door 17 to open;
controlling the heat pump system to work, and enabling moist air in the space where the commodity shelf is located to reach the evaporator 6 through the third air door 17 so as to dry the air; the air after the drying is heated up through the condenser 3 to obtain high-temperature air, the second fan 16 will the high-temperature air inhales supporter place space to get rid of the moisture of the tableware on the supporter, thereby accomplish dry dehumidification process, so circulate until reaching the drying requirement.
Further, as shown in fig. 2 or 3, the dishwasher further comprises a water inlet 12, a water outlet 13 and a floating ball 18;
before the cleaning step, the method further comprises the following steps:
controlling the water outlet 13 to be closed, and enabling water to enter the water tank A through the water inlet 12 until the water level reaches the position of the floating ball 18, and closing the water inlet 12; subsequently, the heat pump system operates.
After the cleaning step is finished, the method also comprises the following steps:
filtering the cleaned dirty water, and returning the filtered water to the water tank again;
the water outlet 13 is opened to discharge the filtered water.
The operation principle and operation of the dishwasher shown in fig. 2 and 3 will be described in detail with reference to fig. 2 and 3.
The dishwasher arrangement comprises: the air conditioner comprises a compressor 1, a heating wire 2, a condenser 3, a drying filter 4, a throttling device 5, an evaporator 6, a first fan 7, a first air door 8, a second air door 9, a motor 10, an air opening 11, a water inlet 12, a water outlet 13, a water pump 14, a water pipe 15, a second fan 16, a third air door 17 and a floating ball 18. The working principle of the dishwasher comprises two steps:
the first step is as follows: washing process when the heat pump is heating (heating the water in the dishwasher tank to a preset temperature, for example 70 ℃), second step: a drying and dehumidifying process (drying and dehumidifying the air humid in the dishwasher to remove moisture on the dishes).
During the cleaning process, before the heat pump system is heated and works, the water outlet 13 is closed, water is put in through the water gap 12 until the water level reaches the floating ball 18, the water inlet 12 is closed, at the moment, the first fan 7 and the compressor 1 are started, a refrigerant is changed into high-temperature and high-pressure gas through the work of the compressor, the high-temperature and high-pressure gas passes through a high-pressure pipe (a heating wire 2 is wound on the high-pressure pipe and is close to the end of the condenser 3, when the ambient temperature is lower than 20 ℃, the heating wire 2 starts the auxiliary condenser 3 to heat the water), the water is heated and condensed into high-pressure liquid, the high-pressure liquid is sent into the drying filter 4, the low-temperature and low-pressure liquid is sent into the evaporator 6 after passing through the throttling device 5, the high-pressure liquid absorbs heat in the evaporator 6 and is evaporated into low-pressure steam and returns to the compressor 1; when the heat pump system is heated, the third air door 17 and the second fan 16 are closed, the first air door 8 is opened, the motor 10 (which can be a synchronous motor specifically) controls the second air door 9 to open the air opening 11, at the moment, normal-temperature air outside the dish washer is sucked by the first fan 7, the first air door 8 is cooled by the evaporator 6, cold air is sent out to the compressor 1 through the air opening 11 to cool the compressor, the heat pump system stops heating until the temperature of water in the water tank A is heated to a preset temperature, at the moment, the water pump 14 is opened, hot water flows to the spray head 13 through the water pipe 15 to clean tableware on the shelf, and cleaned dirty water is filtered and returned to the water tank A again to be discharged through the water outlet 13; clean water is put in through the water inlet 12, the heat pump system works, the processes are circulated once until the tableware is thoroughly cleaned, the water in the water tank is drained, and the second drying and dehumidifying process is carried out.
When drying and dehumidifying, the water pump 14, the first air door 8 and the heating wire 2 are closed, the motor 10 controls the second air door 9 to close the air port 11, the second fan 16 and the third air door 17 are opened, the compressor 1 is started, the refrigerant is changed into high-temperature and high-pressure gas through the work of the compressor, the high-pressure gas is condensed into high-pressure liquid through the condenser 3, the high-pressure liquid passes through the drying filter 4, the low-temperature and low-pressure liquid is changed into low-temperature and low-pressure liquid after passing through the throttling device 5 and is sent into the evaporator 6, the low-pressure vapor is evaporated into low-pressure vapor in the evaporator 6 and returns to the compressor 1, at the moment, the humid air in the dish-washing machine reaches the evaporator 6 through the third air door 17, the vapor in the humid air is liquefied into water drops through the low-temperature evaporator 6 and is discharged, the dry air cooled by the evaporator 6 is sucked by the first fan 7, the high-temperature condenser 3, the high-temperature air is sucked into the dish-washing machine by the second fan 16, and the purpose of removing the moisture on the surface of the tableware in the dish-washing machine is achieved through a reciprocating cycle.
The dish washer that this embodiment provided passes through wind channel and system setting, with the effectual integration of heat pump system and dry dehumidification system together, has the advantage that the energy consumption is low, efficient to have dry dehumidification function, effectual tableware surface moisture of getting rid of avoids residual water to breed bacterium scheduling problem easily, simple structure, flexibility can realize heating and dry dehumidification function through changing the wind channel.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A heat pump system adapted for use in a dishwasher, the heat pump system comprising a compressor, a condenser, a restriction, and an evaporator; at least a refrigerant pipe is connected between the outlet of the compressor and the inlet of the condenser, at least a refrigerant pipe is connected between the outlet of the condenser and the inlet of the throttling device, at least a refrigerant pipe is connected between the outlet of the throttling device and the inlet of the evaporator, and at least a refrigerant pipe is connected between the outlet of the evaporator and the inlet of the compressor; the condenser can be in heat-conducting contact with water in a water tank of the dishwasher to warm the water.
2. The heat pump system according to claim 1, further comprising a heater wire and a dry filter, the heater wire being disposed on the refrigerant pipe between the compressor outlet and the condenser inlet; the dry filter is arranged between the throttling device and the condenser, at least a refrigerant pipe is connected between the outlet of the condenser and the inlet of the dry filter, and at least a refrigerant pipe is connected between the outlet of the dry filter and the inlet of the throttling device.
3. A dishwasher, comprising the heat pump system of claim 1 or 2, a water tank, a water pump, a water pipe, a spray head, and a storage rack; the water pump is at least partially positioned in the water tank; one end of the water pipe is communicated with the water pump, the other end of the water pipe is communicated with the spray head, and the spray head is positioned on one side of the storage rack.
4. The dishwasher of claim 3, further comprising a first air duct; the first air channel is communicated with a space where a compressor of the heat pump system is located and an external space; the evaporator of the heat pump system is at least partially positioned in the first air duct; the dishwasher further comprises a first fan; the first fan is located in the first air duct.
5. The dishwasher of claim 4, further comprising a first damper, a second damper, and a motor; the first air duct is provided with an air port; the air port is positioned at the cross position of the space where the first air channel and the compressor are positioned, and the motor is connected with the second air door and can control the second air door to close or open the air port; the first air door is positioned in a first air duct and can control the connection or disconnection of the first air duct and the external space.
6. The dishwasher of claim 5, further comprising a second air duct; the second air duct can be communicated with the first air duct; the second air channel is communicated with the space where the condenser is located and the space where the storage rack is located.
7. The dishwasher of claim 6, further comprising a second fan and a third damper, the second fan being located in a second air duct; the third air door is positioned in the second air duct and can control the connection or disconnection of the second air duct and the first air duct.
8. The dishwasher of any one of claims 3 to 7, wherein the condenser of the heat pump system is at least partially disposed in the water tank.
9. The dishwasher of claim 8, further comprising a water inlet and a water outlet; the water inlet is positioned above the water tank; the water outlet is positioned at the bottom of the water tank.
10. The dishwasher of claim 9, further comprising a floating ball, wherein the floating ball is located in the water tank and connected with the water inlet switch for controlling the on and off of the water inlet switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222291336.0U CN217938158U (en) | 2022-08-29 | 2022-08-29 | Heat pump system and dish washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222291336.0U CN217938158U (en) | 2022-08-29 | 2022-08-29 | Heat pump system and dish washer |
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| Publication Number | Publication Date |
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| CN217938158U true CN217938158U (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222291336.0U Active CN217938158U (en) | 2022-08-29 | 2022-08-29 | Heat pump system and dish washer |
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| CN (1) | CN217938158U (en) |
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- 2022-08-29 CN CN202222291336.0U patent/CN217938158U/en active Active
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