WO2023082961A1 - 换热装置和洗碗机 - Google Patents

换热装置和洗碗机 Download PDF

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Publication number
WO2023082961A1
WO2023082961A1 PCT/CN2022/126246 CN2022126246W WO2023082961A1 WO 2023082961 A1 WO2023082961 A1 WO 2023082961A1 CN 2022126246 W CN2022126246 W CN 2022126246W WO 2023082961 A1 WO2023082961 A1 WO 2023082961A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage tank
liquid storage
evaporator
outlet
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/126246
Other languages
English (en)
French (fr)
Inventor
王文鹏
刘和成
杨文勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
Midea Group Shanghai Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea White Goods Technology Innovation Center Co Ltd
Midea Group Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea White Goods Technology Innovation Center Co Ltd, Midea Group Shanghai Co Ltd filed Critical Midea Group Co Ltd
Priority to EP22891758.9A priority Critical patent/EP4310412B1/en
Publication of WO2023082961A1 publication Critical patent/WO2023082961A1/zh
Priority to US18/509,659 priority patent/US12533004B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4219—Water recirculation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4285—Water-heater arrangements
    • 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

Definitions

  • the present application relates to the technical field of dishwashers, in particular to a heat exchange device and a dishwasher.
  • the present application at least provides a heat exchange device and a dishwasher, which greatly reduce the noise generated by heating the refrigerant.
  • the first aspect of the present application provides a heat exchange device, the heat exchange device includes an evaporator, a first liquid storage tank, a second liquid storage tank and a power part;
  • the first liquid storage tank the first liquid storage tank is connected to the medium inlet;
  • a second liquid storage tank is connected to the medium outlet, the second liquid storage tank is connected to the first liquid storage tank, and a liquid inlet and an exhaust port are formed on the second liquid storage tank;
  • the power part is arranged between the evaporator and the first liquid storage tank, or between the evaporator and the second liquid storage tank, to drive the liquid medium to circulate among the first liquid storage tank, the evaporator and the second liquid storage tank flow.
  • the second liquid storage tank and the evaporator are arranged on the installation surface of the first liquid storage tank, and the distance from the highest point of the second liquid storage tank to the installation surface is greater than the distance from the highest point of the evaporator to the installation surface.
  • an installation groove is formed on the installation surface, and the evaporator is embedded in the installation groove.
  • the installation groove is formed with an outlet, and the outlet is connected to the medium inlet.
  • the first liquid storage tank is formed with an inlet, and the second liquid storage tank is connected to the inlet;
  • outlet and the inlet are respectively located at two opposite corners of the first liquid storage tank.
  • the medium inlet is located at the side wall of the evaporator, and the medium outlet is located at the top of the evaporator.
  • the input end of the power part is connected to the medium outlet of the evaporator, and the output end is connected to the second liquid storage tank.
  • the second liquid storage tank is formed with an inlet and an outlet, the outlet of the second liquid storage tank is connected to the first liquid storage tank, and the inlet of the second liquid storage tank is connected to the medium outlet of the evaporator;
  • the liquid inlet is located on a side where the outlet of the second liquid storage tank is far away from the inlet of the second liquid storage tank, and the exhaust port is located on a side where the inlet of the second liquid storage tank is far away from the outlet of the second liquid storage tank.
  • the heat exchange device includes a heater arranged in at least one of the first liquid storage tank and the second liquid storage tank.
  • the second aspect of the present application provides a dishwasher, which includes the above heat exchange device.
  • the dishwasher includes a heat pump device and a water cup
  • the heat pump device includes a condenser
  • the outlet of the water cup is connected to the water inlet of the condenser
  • the outlet of the water cup is used to discharge sewage
  • the water inlet of the condenser is higher than the outlet of the water cup of the dishwasher, and the outlet of the water cup is higher than the drain of the water cup.
  • the refrigerant outlet, refrigerant inlet, and water outlet of the condenser, and the medium outlet, refrigerant outlet, and refrigerant inlet of the evaporator are all arranged facing the same direction.
  • the dishwasher proposed by the application uses a liquid medium to heat the refrigerant of the heat pump device, that is, uses a liquid cooling cycle to absorb the cooling capacity of the refrigerant in the heat pump device, which greatly reduces the noise generated by heating the refrigerant , and compared with pure electric heating can reduce energy consumption; and the liquid storage tank of the heat exchange device can be divided into two parts, the first liquid storage tank and the second liquid storage tank, and the power part is used to provide the liquid medium in the first storage tank The circulating flow between the liquid tank, the evaporator and the second liquid storage tank provides power, so that the liquid medium can be fully circulated through the two liquid storage tanks and the power parts, and the heat exchange efficiency of the heat exchange device can be improved.
  • Fig. 1 is a schematic structural view of a dishwasher in an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of a dishwasher in another embodiment of the present application.
  • Fig. 3 is a schematic structural view of a heat exchange device in an embodiment of the present application.
  • Fig. 4 is a schematic structural view of a heat exchange device in another embodiment of the present application.
  • Fig. 5 is a schematic structural view of an evaporator in an embodiment of the present application.
  • Fig. 6 is a schematic cross-sectional view of an evaporator in an embodiment of the present application.
  • Fig. 7 is a schematic diagram of a connection manner between a heat exchange device and a heat pump device in an embodiment of the present application.
  • the dishwasher 100 proposed in this application uses a liquid medium to heat the refrigerant of the heat pump device, that is, uses a liquid cooling cycle to absorb the cooling capacity of the refrigerant in the heat pump device.
  • the noise generated by heating the refrigerant is greatly reduced, and the energy consumption can be reduced compared with pure electric heating.
  • FIG. 1 is a schematic structural view of an embodiment of a dishwasher 100 of the present application.
  • the dishwasher 100 in this embodiment includes a washing water spray device, a heat pump device and a heat exchange device.
  • the heat pump device heats the washing water through the refrigerant; and the washing water spraying device is used to spray the washing water heated by the heat pump device into the cleaning cavity of the dishwasher 100 through the spray arm 9, so as to make the washing water in the cleaning cavity Bowls, etc. are cleaned; in addition, the heat exchange device is used to heat the refrigerant to ensure the heating efficiency of the refrigerant to the washing water.
  • the heat exchange device may include an evaporator 4 , a liquid storage tank 6 and a power part 5 .
  • the evaporator 4 may include a liquid medium channel and a refrigerant channel that are not connected to each other, and the liquid medium channel and the refrigerant channel may be connected by heat transfer, so that the refrigerant in the refrigerant channel can absorb the heat of the liquid medium in the liquid medium channel, thereby enabling The refrigerant is heated by the liquid medium.
  • the power part 5 is arranged between the evaporator 4 and the liquid storage tank 6 to drive the liquid medium to circulate between the liquid medium channel of the liquid storage tank 6 and the evaporator 4, so that the circulating liquid medium can evaporate
  • the refrigerant in the refrigerant channel of the device 4 is heated to improve the heat exchange capacity of the heat pump device.
  • the liquid medium circulating in the heat exchange device may be water, brine, glycol solution (such as a mixture of glycol and water) and the like.
  • the heat pump device may include a compressor 1 and a condenser 2 .
  • the condenser 2 may include a washing water passage and a refrigerant passage which are not connected to each other, and the washing water passage and the refrigerant passage may be connected by heat transfer, so that the washing water in the washing water passage can absorb the heat of the refrigerant in the refrigerant passage, thereby The washing water is heated by the refrigerant.
  • the compressor 1 is connected to the refrigerant outlet 44 of the evaporator 4 in the heat exchange device, the compressor 1 is also connected to the refrigerant inlet 23 of the condenser 2, and the refrigerant outlet 24 of the condenser 2 is connected to the refrigerant inlet 43 of the evaporator 4, thus compressing
  • the refrigerant passages in the machine 1, the evaporator 4, the refrigerant passages in the condenser 2, and the connecting pipes between the compressor 1, the evaporator 4 and the condenser 2 together constitute a circulation flow passage of the refrigerant.
  • the liquid refrigerant heated by the circulating liquid medium in the evaporator 4 will flow to the compressor 1; the compressor 1 will heat and pressurize the liquid refrigerant to turn it into a high-temperature gas refrigerant; the high-temperature gas refrigerant passes through the condenser
  • the refrigerant inlet 23 of 2 enters the refrigerant channel of the condenser 2, and exchanges heat with the washing water in the washing water channel of the condenser 2 to heat the washing water; after the heat of the high-temperature gas refrigerant is absorbed by the washing water, Become a low-temperature liquid refrigerant and flow out of the condenser 2 through the refrigerant outlet 24 of the condenser 2, and then enter the evaporator 4 through the refrigerant inlet 43 of the evaporator 4, so as to continue to allow the liquid medium in the evaporator 4 to flow into the evaporator
  • the refrigerant in the condenser 4 is heated;
  • the heat pump device may also include a throttling device 3 .
  • the refrigerant outlet 24 of the condenser 2 communicates with the refrigerant inlet 43 of the evaporator 4 through the throttling device 3 , so as to depressurize the refrigerant through the throttling device 3 .
  • the throttling device 3 can be a throttle valve.
  • the washing water spraying device includes a circulating water pump 8 , a spraying arm 9 and a water cup 12 .
  • the circulating water pump 8 is arranged between the condenser 2 and the spray arm 9 of the heat pump device, and the spray arm 9 communicates with at least one nozzle (such as the upper nozzle 10 and the lower nozzle 11) to pass the washing water in the condenser 2 through The spray arm 9 pumps to at least one spout.
  • the outlet of the water cup 12 is connected to the water inlet of the condenser 2, so that at least one nozzle sprays the washing water into the cleaning chamber and flows into the bottom of the cleaning chamber, the washing water can enter through the outlet 121 of the water cup 12 arranged at the bottom of the cleaning chamber to condenser 2 to continue the heating cycle.
  • the dishwasher 100 may further include a drainage system, which is used to drain the sewage in the washing chamber after the washing phase is completed.
  • the drainage system can include a pump, the water inlet of the pump is connected to the drain port 122 of the water cup 12, and the water outlet of the pump is connected to the sewage outlet 17 of the dishwasher 100, so that the sewage in the water cup 12 can be discharged out of the dishwasher 100 through the pump. .
  • the power unit 5 in the heat exchange device can be used as the pump of the drainage system, so as to realize that one pump has both drainage and liquid medium circulation functions.
  • the liquid medium circulation is also running simultaneously, at this time the liquid valves (15, 16) are opened, and the drain valves (13, 14) are closed.
  • the liquid medium circulates from the medium outlet 42 of the evaporator 4 to the input end of the pump through the liquid valve (15, 16), flows out from the output end of the pump under the drive of the pump, and enters the liquid storage tank 6, in the liquid storage tank 6 After continuing to flow, it enters the medium inlet 41 of the evaporator 4 to complete the circulation of the liquid medium.
  • the liquid valve (15,16) is closed, the drain valve (13,14) is opened, and the sewage flows out from the water cup 12 drain port 122 through the pump by the drain port 17.
  • the pump of the drainage system and the power part 5 of the heat exchange device are not the same device.
  • the dishwasher 100 may further include a water softener 18 to soften the washing water through the water softener 18 and deliver the softened washing water to the water cup 12 through a pipeline.
  • the water softener 18 can communicate with the water return port 123 of the water cup 12 so as to deliver the softened washing water to the water cup 12 through the water return port 123 .
  • the dishwasher 100 may further include a controller 19 for controlling devices such as a heat exchange device, a heat pump device, and a drainage system.
  • a controller 19 for controlling devices such as a heat exchange device, a heat pump device, and a drainage system.
  • the present application further makes the following improvements to the heat exchange device on the basis of the overall structure of the dishwasher 100 described above.
  • the liquid storage tank 6 of the heat exchange device can be divided into two parts, the first liquid storage tank 61 and the second liquid storage tank 62, so as to pass through the two liquid storage tanks. 6 Let the liquid medium flow sufficiently to improve the heat exchange efficiency of the heat exchange device.
  • the first liquid storage tank 61 communicates with the medium inlet 41 of the evaporator 4
  • the second liquid storage tank 62 communicates with the medium outlet 42 of the evaporator 4
  • the second liquid storage tank 62 also communicates with the first liquid storage tank 61, so that the liquid medium in the heat exchange device first flows from the first liquid storage tank 61 to the evaporator 4, then flows from the evaporator 4 to the second liquid storage tank 62, and then flows from the second liquid storage tank 62 back to the first liquid storage tank
  • a liquid storage tank 61 enables the liquid medium in the heat exchange device to circulate.
  • the power part 5 can be arranged between the evaporator 4 and the second liquid storage tank 62, that is, the input end of the power part 5 communicates with the medium outlet 42 of the evaporator 4, and the output end of the power part 5 communicates with the second liquid storage tank 62, To provide power for the liquid medium to circulate among the first liquid storage tank 61 , the evaporator 4 and the second liquid storage tank 62 .
  • the power element 5 can be arranged between the first liquid storage tank 61 and the evaporator 4, so that the liquid medium circulates between the first liquid storage tank 61, the evaporator 4 and the second liquid storage tank 62 Provide power.
  • An outlet 612 and an inlet 611 may be formed on the first liquid storage tank 61, so that the first liquid storage tank 61 communicates with the medium inlet 41 of the evaporator 4 through its outlet 612, and through its inlet 611 and the second liquid storage tank 62 connected.
  • the outlet 612 and the inlet 611 of the first liquid storage tank 61 can be respectively located at the diagonal positions of the first liquid storage tank 61, so that the liquid medium can form a sufficient flow in the first liquid storage tank 61, which can make the second liquid storage tank 61
  • the temperature of the liquid medium in a liquid storage tank 61 is relatively balanced to improve the heating efficiency of the heat exchange device.
  • an outlet 622 and an inlet 621 can also be formed on the second liquid storage tank 62, so that the second liquid storage tank 62 can communicate with the inlet 611 of the first liquid storage tank 61 through its outlet 622, and the second liquid storage tank 62 can pass through its The inlet 621 communicates with the medium outlet 42 of the evaporator 4 .
  • the outlet 622 and the inlet 621 of the second liquid storage tank 62 are respectively located at opposite ends of the second liquid storage tank 62, so that the liquid medium can form a sufficient flow in the second liquid storage tank 62, which can make the second liquid storage tank 62
  • the temperature of the liquid medium in the liquid storage tank 62 is relatively balanced to improve the heating efficiency of the heat exchange device.
  • the first liquid storage tank 61 and the second liquid storage tank 62 can be arranged up and down, that is, one of the first liquid storage tank 61 and the second liquid storage tank 62 is arranged between the first liquid storage tank 61 and the second liquid storage tank. Above the other of the liquid tanks 62, it can also be understood that the other of the first liquid storage tank 61 and the second liquid storage tank 62 is located in one of the first liquid storage tank 61 and the second liquid storage tank 62 Or away from the side of the cleaning chamber, so that the flow efficiency of the liquid medium in the heat exchange device can be accelerated by utilizing the property of the liquid medium flowing downward.
  • the second liquid storage tank 62 is arranged above the first liquid storage tank 61, that is, in the dishwasher 100, the first liquid storage tank 61 is located on the side of the second liquid storage tank 62 away from the cleaning chamber. .
  • the first liquid storage tank 61 can be arranged above the second liquid storage tank 62, that is, in the dishwasher 100, the second liquid storage tank 62 is located at a side of the first liquid storage tank 61 away from the cleaning chamber. side.
  • a liquid inlet 623 may be formed on the upper liquid storage tank 62, and because the first liquid storage tank 61 communicates with the second liquid storage tank 62, through the liquid inlet 623 on the upper liquid storage tank 62, the The lower liquid storage tank 61 is filled with liquid medium, and when the upper liquid storage tank 62 is filled to the highest water level through the liquid inlet 623, the lower liquid storage tank 61 will also be filled with liquid medium. Further, the upper liquid storage tank 62 can be formed with a liquid inlet 623 at its highest point, so that the two liquid storage tanks 6 can be filled with liquid medium through the liquid inlet 623 .
  • liquid inlet 623 can be arranged on the side where the outlet 622 of the upper liquid storage tank 62 is away from the inlet 621 of the upper liquid storage tank 62, or the liquid inlet 623 can also be arranged on the upper liquid storage tank.
  • the inlet 621 of 62 is away from the side of the outlet 622 of the liquid storage tank 62 located above.
  • an exhaust port 624 may be formed on the upper liquid storage tank 62 , so that the gas in the upper liquid storage tank 62 may be discharged during the circulation of the liquid medium through the arrangement of the exhaust port 624 .
  • the exhaust port 624 can be set on the side where the inlet 621 of the upper liquid storage tank 62 is away from the outlet 622 of the upper liquid storage tank 62 , which is beneficial to timely discharge excess gas in the liquid storage tank 6 during the liquid medium circulation process.
  • the exhaust port 624 and the liquid inlet port 623 can be located at opposite ends of the upper liquid storage tank 62 respectively, so as to prevent the liquid medium just filled into the liquid storage tank 6 from being discharged to the outside of the liquid storage tank 6 through the exhaust port 624 .
  • the lower liquid storage tank 61 can be used as a support for the upper liquid storage tank 62, power element 5, evaporator 4, heat pump device, etc.
  • the upper liquid storage tank 62, the power part 5, the evaporator 4, the heat pump device and other components are arranged above the lower liquid storage tank 61.
  • an installation surface 613 may be formed on the liquid storage tank 61 located below, so that components such as the liquid storage tank 62 , the power part 5 , the evaporator 4 and the heat pump device located above can be arranged on the installation surface. 613.
  • the size of the upper liquid storage tank 62 may be smaller than that of the lower liquid storage tank 61, for example, at least one of the length and width of the upper liquid storage tank 62 is smaller than that of the upper liquid storage tank 62. At least one of the length and width of the lower liquid storage tank 61, so that the upper liquid storage tank 62 can be located in a part of the installation surface 613, and the rest of the components such as the power part 5, the evaporator 4 and the heat pump device can be distributed on on the remaining area of the mounting surface 613.
  • the installation surface 613 is divided into two regions adjacent to the left and right or front and rear; one of the two divided regions can be used as a part of the installation surface 613, so that the storage space located above is set in this region.
  • the liquid tank 62; and the other area of the two divided areas is used as the remaining area of the installation surface 613, so that other components such as the power member 5, the evaporator 4, and the heat pump device are arranged in the remaining area.
  • the installation surface 613 is divided into two front and rear adjacent areas, the front area and the rear area, the upper liquid storage tank 62 is arranged on the rear area, and the power unit 5, the evaporator 4 and the heat pump are arranged on the front area Devices and other devices to further improve the balance of the weight distribution of the dishwasher 100 chassis.
  • the evaporator 4 can also be disposed on the mounting surface 613 . Further, for the evaporator 4, the distance from the highest point of the evaporator 4 to the mounting surface 613 of the lower liquid storage tank 61 may be smaller than the distance from the highest point of the upper liquid storage tank 62 to the lower liquid storage tank 61.
  • the distance between the mounting surface 613 in other words, the distance between the evaporator 4 and the cleaning chamber can be greater than the distance between the liquid storage tank 62 located above and the cleaning chamber, in general, the highest point of the evaporator 4 is lower At the highest point of the liquid storage tank 62 located above, after the liquid storage tank 62 located above is filled with liquid medium, the liquid storage tank 61 and the evaporator 4 located below can be filled with liquid medium to prevent the evaporator 4 from being filled with liquid medium. Liquid medium results in insufficient heat transfer.
  • the evaporator 4 can be embedded in the lower liquid storage tank 61, so that when the lower liquid storage tank 61 is filled with liquid medium, the liquid medium in the lower liquid storage tank 61 can automatically flow into the evaporator 4 Therefore, it is only necessary to provide a power element 5 between the evaporator 4 and the upper liquid storage tank 62 to realize the liquid medium between the first liquid storage tank 61, the evaporator 4 and the second liquid storage tank 62. Circular flow.
  • the mounting surface 613 of the lower liquid storage tank 61 is formed with a mounting groove 614, and then the evaporator 4 is embedded in the mounting groove 614, so that at least part of the evaporator 4 can be embedded in the lower liquid storage tank 61 .
  • an outlet 612 is also formed in the installation groove 614, and the lower liquid storage tank 61 communicates with the medium inlet 41 of the evaporator 4 through the outlet 612, so that when the lower liquid storage tank 61 is filled with liquid medium, the lower liquid storage tank The liquid medium in the tank 61 can automatically flow into the evaporator 4 .
  • the evaporator 4 can be columnar, and its medium inlet 41 is located on the side wall of the evaporator 4, so that an outlet 612 can be formed at the position adjacent to the wall of the installation groove 614 and the medium inlet 41, which can reduce the The length of the first pipeline (not shown) connecting the outlet 612 and the medium inlet 41 is also convenient for setting the first pipeline.
  • the medium outlet 42 of the evaporator 4 is located at the top of the evaporator 4, and the medium outlet 42 of the evaporator 4 can be arranged towards the power part 5, so as to arrange a second pipeline (not shown in the figure) connecting the medium outlet 42 and the power part 5 mark).
  • the refrigerant inlet 43 and the refrigerant outlet 44 of the evaporator 4 may also be located at the top of the evaporator 4 .
  • the evaporator 4 may include a container 47 and a refrigerant pipe 45 .
  • the container 47 is used to hold the liquid medium, and the refrigerant pipe 45 is spirally arranged in the container 47, so that the liquid medium contained in the container 47 can exchange heat with the refrigerant in the refrigerant pipe 45, and through the spirally arranged
  • the refrigerant pipe 45 can increase the contact area between the refrigerant pipe 45 and the liquid medium in the container 47 to improve heat exchange efficiency.
  • the evaporator 4 may further include an inner pipe 46 inserted into the container 47 , and the refrigerant pipe 45 is arranged between the container 47 and the inner pipe 46 .
  • the outlet of inner tube 46 (being medium outlet) and medium inlet are positioned at the same end of container 47, and like this liquid medium can enter in the container 47 from one end of container 47 earlier, then liquid medium flows to the other end of container 47, then The liquid medium passes through the inner tube 46 and flows to one end of the container 47 and flows out of the evaporator from one end of the container 47, so that the liquid medium can fully flow in the evaporator, and the temperature balance of the liquid medium in the evaporator is improved to improve evaporation.
  • the heat exchange efficiency of the device is positioned at the same end of container 47, and like this liquid medium can enter in the container 47 from one end of container 47 earlier, then liquid medium flows to the other end of container 47, then The liquid medium passes through the inner tube 46 and flows to one end of the container 47 and flows out of the evaporator from one end of the container 47, so that the liquid medium can fully flow in the evaporator, and the temperature balance of the liquid medium in the evaporator is improved to improve evapor
  • the power element 5 can also be disposed on the installation surface 613 . Further, the power element 5 can also be embedded in the installation groove 614 .
  • a protruding communication part can also be formed on the lower liquid storage tank 61 to connect the input end of the power element 5 with the medium outlet 42 of the evaporator 4 through the communication part, so as to connect the lower storage tank 61 through the communication part.
  • the installation surface 613 of the liquid tank 61 is formed with an installation position whose size matches the power unit 5 , so that the power unit 5 can be embedded in the installation position to fix the power unit 5 .
  • a liquid outlet and a liquid inlet may be formed on the communication portion, the liquid inlet of the communication portion communicates with the medium outlet 42 of the evaporator 4 , and the liquid outlet of the communication portion communicates with the input end of the power element 5 .
  • the power part 5 can be a power device such as a pump.
  • the heat exchange device may include a heater 7 disposed in the first liquid storage tank 61 and/or the second liquid storage tank 62 . That is, the heat exchange device may include a first heater disposed on the first liquid storage tank 61 and/or a second heater disposed on the second liquid storage tank 62, so that the first heater and/or the second heater can provide The liquid medium in the first liquid storage tank 61 and/or the second liquid storage tank 62 is heated, so that the temperature of the liquid medium in the first liquid storage tank 61 and the second liquid storage tank 62 can be kept at It is within the appropriate temperature range for heating of the refrigerant within.
  • the first heater can be a heating tube assembly or a heating wire assembly.
  • the first heater can be a heating wire assembly, so as to control the temperature of the liquid medium in the first liquid storage tank 61 within a suitable temperature range (for example, 5-20°), and increase the temperature of the liquid in the first liquid storage tank 61. Accuracy of media temperature control.
  • the first heater may include a first heating wire and a first heat conduction belt connected by heat transfer, so that the heat of the first heating wire can be uniformly conducted to the liquid in the first liquid storage tank 61 through the first heat conduction belt. medium, so as to achieve the purpose of uniformly heating the liquid medium in the first liquid storage tank 61 through the first heater.
  • the first heating wire can be wrapped in the first heat conduction tape, so that the first heating wire does not directly contact the liquid medium in the first liquid storage tank 61, and the first heating wire conducts heat evenly and indirectly through the first heat conduction tape.
  • the liquid medium is supplied to improve the temperature uniformity of the liquid medium in the first liquid storage tank 61 .
  • the first heater may be disposed inside the first liquid storage tank 61 or outside the first liquid storage tank 61 , which is not specifically limited.
  • the second heater may also include a second heating wire and a second conductive belt connected by heat transfer.
  • the relative position between the second heating wire, the second conductive belt and the second liquid storage tank 62 can be the same as the relative position between the first heating wire, the first conductive belt and the first liquid storage tank 61, here I won't go into details.
  • the present application further improves the cooperation mode of the heat exchange device and the heat pump device as follows on the basis of the overall structure and heat exchange device of the dishwasher 100 described above.
  • the heat pump device and the evaporator 4 can be integrally embedded in the liquid storage tank 61 located below, that is, the heat pump device and the evaporator 4 are assembled together first, and then the assembled Good components are integrally embedded in the lower liquid storage tank 61 to achieve modularization and simplification.
  • the water inlet 21 of the condenser 2 can be higher than the water cup 12 outlet 121, and the water cup 12 outlet 121 can be higher than the water outlet 122 of the water cup 12, so that the remaining washing water in the water cup 12 (water cup 12 outlet 121 The washing water below) cannot enter the condenser 2, and the washing water in the condenser 2 has been completely drained, so that there is no residual water in the condenser 2 at the end of the cycle.
  • the condenser 2 can be arranged above the evaporator 4, so as to facilitate the setting of the connecting pipeline (not marked) between the condenser 2 and the evaporator 4, and it is easy to meet the height of the installation position of the evaporator 4 and the condenser 2 Require.
  • the water inlet 21, the refrigerant inlet 23 and the refrigerant outlet 24 of the condenser 2, and the medium inlet 41, the refrigerant outlet 44 and the refrigerant inlet 43 of the evaporator 4 can all be arranged facing the same direction, for example, they can all be arranged toward the power part 5, and can It is convenient to set the connecting pipeline between the condenser 2 and the evaporator 4.
  • the water inlet 21 , the refrigerant inlet 23 and the refrigerant outlet 24 of the condenser 2 can all be located at the top of the condenser 2 so that the axis of the condenser 2 is parallel to the width direction of the first liquid storage tank 61 .
  • the evaporator 4 and the condenser 2 may be arranged side by side. And the axis of the condenser 2 may be parallel to the axis of the evaporator 4 .
  • the condenser 2 and the evaporator 4 can be heat exchangers with the same structure and size, so that the condenser 2 and the evaporator 4 can be assembled together. Further, the parameters of the condenser 2 and the evaporator 4 may be the same, that is, the condenser 2 and the evaporator 4 may have completely consistent structural parameters and heat exchange performance.

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  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
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  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

本申请公开了一种换热装置和洗碗机，换热装置包括蒸发器、第一储液箱、第二储液箱和动力件；蒸发器上形成有介质进口和介质出口；所述第一储液箱连通于所述介质进口；所述第二储液箱连通于所述介质出口，所述第二储液箱连通于所述第一储液箱，所述第二储液箱上形成有进液口和排气口；动力件设置于所述蒸发器和所述第一储液箱之间，或者所述蒸发器和所述第二储液箱之间，以驱动液体介质在第一储液箱、蒸发器及第二储液箱之间循环流动。上述方案可极大地降低为冷媒加热产生的噪音。

Description

换热装置和洗碗机 【技术领域】
本申请涉及洗碗机技术领域，特别是涉及一种换热装置和洗碗机。
【背景技术】
目前常用的洗碗机，通常采用喷臂出水的方式对置于碗篮上的餐具进行清洗。由于洗碗过程中需要加热水至一定温度，目前常用的方式是采用电加热形式，在底部布置电加热器和水泵，加热后的水由水泵泵入喷臂，清洗餐具后水回流至水杯，经过过滤重新加热以此循环清洗。为了节能需求，也有专利技术采用热泵装置进行加热。但是目前一般通过风冷的方式对热泵装置内的冷媒进行加热，噪音比较明显。
【发明内容】
本申请至少提供一种换热装置和洗碗机，极大地降低了为冷媒加热产生的噪音。
本申请第一方面提供了一种换热装置，该换热装置包括蒸发器、第一储液箱、第二储液箱和动力件；
蒸发器，蒸发器上形成有介质进口和介质出口；
第一储液箱，第一储液箱连通于介质进口；
第二储液箱，第二储液箱连通于介质出口，第二储液箱连通于第一储液箱，第二储液箱上形成有进液口和排气口；
动力件，设置于蒸发器和第一储液箱之间，或者蒸发器和第二储液箱之间，以驱动液体介质在第一储液箱、蒸发器及第二储液箱之间循环流动。
其中，第二储液箱和蒸发器设置于第一储液箱的安装表面上，第二储液箱的最高点到安装表面的距离大于蒸发器最高点到安装表面的距离。
其中，安装表面形成有安装槽，蒸发器嵌设于安装槽内。
其中，安装槽形成有出口，出口连通于介质进口。
其中，第一储液箱形成有进口，第二储液箱连通于进口；
其中，出口和进口分别位于第一储液箱的相对两对角。
其中，介质进口位于蒸发器的侧壁，介质出口位于蒸发器的顶端。
其中，动力件的输入端连通蒸发器的介质出口，输出端连通第二储液箱。
其中，第二储液箱形成有进口和出口，第二储液箱的出口连通于第一储液箱，第二储液箱的进口连通于蒸发器的介质出口；
其中，进液口位于第二储液箱的出口远离第二储液箱的进口的一侧，且排气口位于第二储液箱的进口远离第二储液箱的出口的一侧。
其中，换热装置包括设置于第一储液箱和第二储液箱中的至少一者的加热器。
本申请第二方面提供了一种洗碗机，该洗碗机包括上述的换热装置。
其中，洗碗机包括热泵装置和水杯，热泵装置包括冷凝器，水杯的出口连通于冷凝器的进水口，且水杯的排水口用于排出污水；
其中，冷凝器的进水口高于洗碗机的水杯出口，水杯出口高于水杯的排水口。
其中，冷凝器的冷媒出口、冷媒进口和出水口，以及蒸发器的介质出口、冷媒出口和冷媒进口均朝向同一方向设置。
本申请的有益效果是：本申请提出的洗碗机利用液体介质对热泵装置的冷媒进行加热，即利用液冷循环方式吸收热泵装置中冷媒的冷量，极大地降低了为冷媒加热产生的噪音，且相比于纯粹电加热可以减少能耗；且换热装置的储液箱可分为第一储液箱和第二储液箱这两部分，另外通过动力件为液体介质在第一储液箱、蒸发器及第二储液箱之间循环流动提供动力，以通过两个储液箱和动力件让液体介质进行充分的循环，提高换热装置的换热效率。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，而非限制本申请。
【附图说明】
此处的附图被并入说明书中并构成本说明书的一部分，这些附图示出了符合本申请的实施例，并与说明书一起用于说明本申请的技术方案。
图1是本申请一实施例中洗碗机的结构示意图；
图2是本申请又一实施例中洗碗机的具体结构示意图；
图3是本申请一实施例中换热装置的结构示意图；
图4是本申请另一实施例中换热装置的结构示意图；
图5是本申请一实施例中蒸发器的结构示意图；
图6是本申请一实施例中蒸发器的剖面示意图；
图7是本申请一实施例中换热装置和热泵装置的连接方式示意图。
【具体实施方式】
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其他实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其他实施例相结合。
为解决现有采用风冷的热泵装置噪音比较明显的问题，本申请提出的洗碗机100利用液体介质对热泵装置的冷媒进行加热，即利用液冷循环方式吸收热泵装置中冷媒的冷量，极大地降低了为冷媒加热产生的噪音，且相比于纯粹电加热可以减少能耗。
如图1所示，图1是本申请洗碗机100一实施方式的结构示意图。本实施方式洗碗机100包括洗涤水喷淋装置、热泵装置和换热装置。
其中，热泵装置通过冷媒对洗涤水进行加热；而洗涤水喷淋装置用于将热泵装置加热过的洗涤水通过喷淋臂9喷淋到洗碗机100的清洗腔内，以为清洗腔内的碗具等进行清洗；另外，换热装置用于对冷媒进行加热，以保证冷媒对洗涤水的加热效率。
其中，换热装置可包括蒸发器4、储液箱6和动力件5。其中，蒸发器4可包括互不连通的液体介质通道和冷媒通道，且液体介质通道和冷媒通道可传热连接，这样冷媒通道内的冷媒可吸收液体介质通道内的液体介质的热量，从而可通过液体介质为冷媒进行加热。而动力件5设置于蒸发器4和储液箱6之间，以驱动液体介质在储液箱6和蒸发器4的液体介质通道之间循环流动，这样就可让循环流动的液体介质对蒸发器4的冷媒通道内的冷媒进行加热，以提高热泵装置换热能力。其中，换热装置内循环流动的液体介质可为水、盐水、乙二 醇溶液(例如乙二醇和水的混合物)等。
热泵装置可包括压缩机1、冷凝器2。其中，冷凝器2可包括互不连通的洗涤水通道和冷媒通道，且洗涤水通道和冷媒通道可传热连接，这样洗涤水通道内的洗涤水可吸收冷媒通道内的冷媒的热量，从而可通过冷媒为洗涤水进行加热。压缩机1连通于换热装置中蒸发器4的冷媒出口44，压缩机1还连通于冷凝器2的冷媒进口23，冷凝器2的冷媒出口24连通于蒸发器4的冷媒进口43，这样压缩机1、蒸发器4内的冷媒通道、冷凝器2内的冷媒通道以及压缩机1、蒸发器4和冷凝器2之间的连接管道就共同构成了冷媒的循环流动通道。这样蒸发器4内的经循环流动的液体介质加热过的液体冷媒会流动到压缩机1；压缩机1会对液体冷媒进行加温加压让其变为高温气体冷媒；高温气体冷媒通过冷凝器2的冷媒进口23进入到冷凝器2的冷媒通道内，并与冷凝器2的洗涤水通道内的洗涤水进行换热，以对洗涤水进行加热；高温气体冷媒的热量被洗涤水吸收后，变为低温液体冷媒并通过冷凝器2的冷媒出口24从冷凝器2内流出，然后通过蒸发器4的冷媒进口43进入到蒸发器4，以继续让蒸发器4内的液体介质对流入到蒸发器4的冷媒进行加热；如此循环往复，以持续对流经冷凝器2的洗涤水进行加热。
可选地，热泵装置还可包括节流器件3。冷凝器2的冷媒出口24通过节流器件3连通于蒸发器4的冷媒进口43，以通过节流器件3对冷媒进行降压。其中，节流器件3可为节流阀。
洗涤水喷淋装置包括循环水泵8、喷淋臂9和水杯12。循环水泵8设置于热泵装置的冷凝器2和喷淋臂9之间，且喷淋臂9与至少一个喷口(例如上喷口10和下喷口11)连通，以将冷凝器2内的洗涤水经过喷淋臂9抽送到至少一个喷口。水杯12的出口连通于冷凝器2的进水口，这样至少一个喷口将洗涤水喷淋到清洗腔内且流入到清洗腔底部时，洗涤水可通过设置于清洗腔底部的水杯12的出口121进入到冷凝器2内以继续进行加热循环。
另外，洗碗机100还可包括排水系统，排水系统用于在清洗阶段完毕后，排掉清洗腔的污水。排水系统可包括泵，泵的进水口和水杯12的排水口122相连，泵的出水口和洗碗机100的排污口17相连，这样可通过泵将水杯12内的污水排出洗碗机100外。
在本实施例中，可将换热装置中的动力件5作为排水系统的泵，以实现一 个泵兼具排水和液体介质循环功能。如图2所示，当热泵装置运行时液体介质循环也同时运行，此时液体阀(15,16)被打开，排水阀(13,14)关闭。液体介质循环由蒸发器4的介质出口42经液体阀(15,16)进入泵的输入端，在泵的驱动下由泵的输出端流出，并进入储液箱6，在储液箱6中继续流动后进入蒸发器4的介质进口41，完成液体介质循环。当洗涤循环完成后，进入排水流程，此时液体阀(15,16)被关闭，排水阀(13,14)打开，污水从水杯12排水口122经过泵由排污口17流出。在其他实施例中，排水系统的泵和换热装置的动力件5不为同一个器件。
此外，如图2所示，洗碗机100还可包括软水器18，以通过软水器18将洗涤水进行软化处理，并将软化处理后的洗涤水通过管路输送到水杯12中。具体地，软水器18可和水杯12的回水口123相连通，以便将软化处理后的洗涤水通过回水口123输送到水杯12中。
洗碗机100还可包括控制器19，控制器19用于控制换热装置、热泵装置和排水系统等器件。
本申请进一步在上文描述的洗碗机100的整体结构的基础上对换热装置进行以下改进。
在本实施例中，如图3和图4所示，换热装置的储液箱6可分为第一储液箱61和第二储液箱62这两部分，以通过两个储液箱6让液体介质进行充分的流动，提高换热装置的换热效率。具体地，第一储液箱61连通于蒸发器4的介质进口41，第二储液箱62连通于蒸发器4的介质出口42，且第二储液箱62还连通于第一储液箱61，这样换热装置内的液体介质先从第一储液箱61流到蒸发器4，再从蒸发器4流到第二储液箱62，接着从第二储液箱62流回到第一储液箱61，使得换热装置内的液体介质可循环流动。而动力件5可设置于蒸发器4和第二储液箱62之间，即动力件5的输入端连通蒸发器4的介质出口42，动力件5的输出端连通第二储液箱62，以为液体介质在第一储液箱61、蒸发器4及第二储液箱62之间循环流动提供动力。在其他实施例中，动力件5可设置于第一储液箱61和蒸发器4之间，以为液体介质在第一储液箱61、蒸发器4及第二储液箱62之间循环流动提供动力。
第一储液箱61上可形成有出口612和进口611，以使第一储液箱61通过其出口612和蒸发器4的介质进口41连通，并通过其进口611和第二储液箱62 连通。可选地，第一储液箱61的出口612和进口611可分别位于第一储液箱61的对角位置，这样液体介质可在第一储液箱61内形成充分的流动，可使第一储液箱61内液体介质温度相对均衡，以提高换热装置的加热效率。
另外，第二储液箱62上也可形成出口622和进口621，这样第二储液箱62可通过其出口622连通于第一储液箱61的进口611，第二储液箱62通过其进口621连通于蒸发器4的介质出口42。可选地，第二储液箱62的出口622和进口621分别位于第二储液箱62的相对两端，这样液体介质可在第二储液箱62内形成充分的流动，可使第二储液箱62内液体介质温度相对均衡，以提高换热装置的加热效率。
第一储液箱61和第二储液箱62可呈上下排布设置，即第一储液箱61和第二储液箱62中的一者设置于第一储液箱61和第二储液箱62中的另一者上方，也可以理解成，第一储液箱61和第二储液箱62中的另一者位于第一储液箱61和第二储液箱62中的一者远离清洗腔的一侧，这样利用液体介质往下流动的性质加快换热装置中液体介质的流动效率。在本实施例中，第二储液箱62设置于第一储液箱61的上方，即，在洗碗机100中第一储液箱61位于第二储液箱62远离清洗腔的一侧。在其他实施例中，第一储液箱61可设置于第二储液箱62的上方，即，在洗碗机100中第二储液箱62位于第一储液箱61远离清洗腔的一侧。
位于上方的储液箱62上可形成有进液口623，且因为第一储液箱61和第二储液箱62连通，通过位于上方的储液箱62上的进液口623就可向位于下方的储液箱61加注液体介质，且通过进液口623向位于上方的储液箱62加注至最高水位时，位于下方的储液箱61内也会充满液体介质。进一步地，位于上方的储液箱62可在其最高点位置形成有进液口623，这样，通过进液口623可将两个储液箱6加满液体介质。另外，进液口623可设置于位于上方的储液箱62的出口622远离位于上方的储液箱62的进口621的一侧，或者，进液口623也可设置于位于上方的储液箱62的进口621远离位于上方的储液箱62的出口622的一侧。
另外，位于上方的储液箱62上可形成有排气口624，这样通过排气口624的设置可在液体介质循环流动过程中使位于上方的储液箱62内的气体排出。排气口624可设置于位于上方的储液箱62的进口621远离位于上方的储液箱62 的出口622的一侧，有利于液体介质循环过程中及时排出储液箱6中多余的气体。进一步地，排气口624和进液口623可分别位于上方的储液箱62的相对两端，避免刚加注进储液箱6的液体介质通过排气口624排出到储液箱6外部。
另外，位于下方的储液箱61可用于作为位于上方的储液箱62、动力件5、蒸发器4以及热泵装置等器件的支撑件，即可将位于下方的储液箱61设置在洗碗机100底部，将位于上方的储液箱62、动力件5、蒸发器4以及热泵装置等器件设置于位于下方的储液箱61上方。
具体地，如图4所示，位于下方的储液箱61上可形成有安装表面613，使得位于上方的储液箱62、动力件5、蒸发器4以及热泵装置等器件可设置于安装表面613。
为平衡洗碗机100的重量分布，位于上方的储液箱62的尺寸可小于位于下方的储液箱61的尺寸，例如位于上方的储液箱62的长和宽中的至少一者小于位于下方的储液箱61的长和宽中的至少一者，这样位于上方的储液箱62可位于安装表面613的部分区域，而动力件5、蒸发器4以及热泵装置等其余器件可分布于安装表面613的剩余区域上。其中，安装表面613被划分成左右相邻或前后相邻的两个区域；可将划分而成的两个区域中的一个区域作为安装表面613的部分区域，以在该区域设置位于上方的储液箱62；并将划分而成的两个区域中的另一区域作为安装表面613的剩余区域，以在该剩余区域设置动力件5、蒸发器4以及热泵装置等其余器件。优选地，安装表面613被划分为前区域和后区域这两个前后相邻的区域，在后区域上设置位于上方的储液箱62，在前区域上设置动力件5、蒸发器4以及热泵装置等其余器件，以进一步提高洗碗机100底盘的重量分布的平衡度。
蒸发器4也可设置于安装表面613上。进一步地，对于蒸发器4来说，蒸发器4最高点到位于下方的储液箱61的安装表面613的距离可小于位于上方的储液箱62的最高点到位于下方的储液箱61的安装表面613的距离，换一种说法，蒸发器4与清洗腔之间的距离可大于位于上方的储液箱62与清洗腔之间的距离，总的来说，蒸发器4的最高点低于位于上方的储液箱62的最高点，这样位于上方的储液箱62加满液体介质后可实现位于下方的储液箱61以及蒸发器4内充满液体介质，防止蒸发器4中因缺少液体介质导致换热不充分。
而蒸发器4的至少部分可嵌入到位于下方的储液箱61中，这样位于下方的 储液箱61加满液体介质时位于下方的储液箱61内的液体介质可自动流入到蒸发器4内，从而只需要在蒸发器4和位于上方的储液箱62之间设有动力件5就可实现液体介质在第一储液箱61、蒸发器4以及第二储液箱62之间的循环流动。
具体地，位于下方的储液箱61的安装表面613形成有安装槽614，然后蒸发器4嵌设于安装槽614内，从而蒸发器4的至少部分可嵌入到位于下方的储液箱61中。另外，安装槽614中还形成有出口612，位于下方的储液箱61通过出口612连通于蒸发器4的介质进口41，使得位于下方的储液箱61加满液体介质时位于下方的储液箱61内的液体介质可自动流入到蒸发器4内。
其中，如图5所示，蒸发器4可为柱状，其介质进口41位于蒸发器4的侧壁，这样可在安装槽614壁与介质进口41相邻的位置形成有出口612，可减小连通出口612和介质进口41的第一管路(图未标)的长度，也便于设置第一管路。另外，蒸发器4的介质出口42位于蒸发器4的顶端，而且蒸发器4的介质出口42可朝向动力件5设置，以便于设置连通介质出口42和动力件5的第二管路(图未标)。且蒸发器4的冷媒进口43和冷媒出口44也可位于蒸发器4的顶端。
其中，如图6所示，蒸发器4可包括容器47和冷媒管45。其中容器47用于盛放液体介质，冷媒管45在容器47内呈螺旋排布，这样容器47内盛放的液体介质就可和冷媒管45内的冷媒进行换热，并且通过螺旋排布的冷媒管45可增加冷媒管45和容器47内的液体介质的接触面积，以提高换热效率。进一步地，蒸发器4还可包括内管46，内管46插置于容器47内，且冷媒管45设置于容器47和内管46之间。其中，内管46的出口(即为介质出口)和介质进口位于容器47的同一端，这样液体介质会先从容器47的一端进入容器47内，然后液体介质流动到容器47的另一端，接着液体介质穿过内管46又流动到容器47的一端并从容器47的一端流出蒸发器，让液体介质可在蒸发器内充分流动，提高了蒸发器内液体介质温度的均衡性，以提高蒸发器的换热效率。
动力件5也可设置于安装表面613上。进一步地，动力件5也可嵌设于安装槽614内。
另外，位于下方的储液箱61上还可形成有凸出的连通部，以通过连通部将动力件5的输入端和蒸发器4的介质出口42连通，以通过连通部使位于下方的储液箱61的安装表面613上形成有尺寸和动力件5相适配的安装位，让动力件 5可恰好嵌设于安装位中，以便固定动力件5。具体地，连通部上可形成有出液口和进液口，连通部的进液口连通于蒸发器4的介质出口42，连通部的出液口连通于动力件5的输入端。
另外，动力件5可为泵等动力器件。
换热装置可包括设置于第一储液箱61和/或第二储液箱62的加热器7。即换热装置可包括设置于第一储液箱61的第一加热器和/或设置于第二储液箱62的第二加热器，以通过第一加热器和/或第二加热器为第一储液箱61和/或第二储液箱62内的液体介质进行加热，以让第一储液箱61和第二储液箱62内的液体介质的温度保持在能够为蒸发器4内的冷媒进行加热的适宜温度范围内。
其中，第一加热器可为加热管组件或加热丝组件。优选地，第一加热器可为加热丝组件，以将第一储液箱61内液体介质的温度控制在适宜温度范围(例如5-20°)内，并提高第一储液箱61内液体介质温度控制的精确性。
具体地，第一加热器可包括传热连接的第一加热丝和第一导热带，这样就可通过第一导热带将第一加热丝的热量均匀传导到第一储液箱61内的液体介质内，以实现通过第一加热器为第一储液箱61内液体介质均匀加热的目的。另外，第一加热丝可被包裹在第一导热带内，这样第一加热丝不和第一储液箱61内的液体介质直接接触，第一加热丝通过第一导热带均匀将热量间接传导给液体介质，以提高第一储液箱61内液体介质温度的均匀性。
另外，第一加热器可设置于第一储液箱61内，也可设置于第一储液箱61外，具体不受限制。
另外，第二加热器也可包括传热连接的第二加热丝和第二导热带。其中，第二加热丝、第二导热带与第二储液箱62之间的相对位置可和第一加热丝、第一导热带和第一储液箱61之间的相对位置相同，在此不做赘述。
本申请进一步在上文描述的洗碗机100的整体结构和换热装置的基础上，对换热装置和热泵装置的配合方式进行以下改进。
如图7所示，洗碗机100组装过程中，可将热泵装置和蒸发器4整体嵌入到位于下方的储液箱61中，即先将热泵装置和蒸发器4组装在一起，然后将组装好的部件整体嵌入到位于下方的储液箱61中，以实现模块化和简易化。
另外，冷凝器2的进水口21可高于水杯12出口121，且水杯12出口121可高于水杯12的排水口122，以实现在循环结束时水杯12内的剩余洗涤水(水 杯12出口121下方的洗涤水)无法进入到冷凝器2中，且冷凝器2内的洗涤水已被完全排掉，从而实现在循环结束时冷凝器2内无残留水。
另可将冷凝器2设置于蒸发器4的上方，以便于设置冷凝器2和蒸发器4之间的连接管路(图未标)，且易于满足蒸发器4和冷凝器2的安装位置高度要求。且冷凝器2的进水口21、冷媒进口23和冷媒出口24、以及蒸发器4的介质进口41、冷媒出口44和冷媒进口43可均朝向同一方向设置，例如均朝向动力件5设置，且可便于设置冷凝器2和蒸发器4之间的连接管路。另外，冷凝器2的进水口21、冷媒进口23和冷媒出口24可均位于冷凝器2的顶端，以便于使冷凝器2的轴线与第一储液箱61的宽度方向平行。
另外，蒸发器4和冷凝器2可并排设置。且冷凝器2的轴线可与蒸发器4的轴线平行。
冷凝器2和蒸发器4可为结构和尺寸相同的换热器，以便于将冷凝器2和蒸发器4组装在一起。进一步地，冷凝器2和蒸发器4的参数可相同，即冷凝器2和蒸发器4可具有完全一致的结构参数和换热性能。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (10)

  1. 一种换热装置，其特征在于，所述换热装置包括：
    蒸发器，所述蒸发器上形成有介质进口和介质出口；
    第一储液箱，所述第一储液箱连通于所述介质进口；
    第二储液箱，所述第二储液箱连通于所述介质出口，所述第二储液箱连通于所述第一储液箱，所述第二储液箱上形成有进液口和排气口；
    动力件，设置于所述蒸发器和所述第一储液箱之间，或者所述蒸发器和所述第二储液箱之间，以驱动液体介质在第一储液箱、蒸发器及第二储液箱之间循环流动。
  2. 根据权利要求1所述的换热装置，其特征在于，所述第二储液箱和所述蒸发器设置于所述第一储液箱的安装表面上，所述第二储液箱的最高点到所述安装表面的距离大于所述蒸发器最高点到所述安装表面的距离。
  3. 根据权利要求2所述的换热装置，其特征在于，所述安装表面形成有安装槽，所述蒸发器嵌设于所述安装槽内；
    所述安装槽形成有出口，所述出口连通于所述介质进口。
  4. 根据权利要求3所述的换热装置，其特征在于，所述第一储液箱形成有进口，所述第二储液箱连通于所述进口；
    其中，所述出口和所述进口分别位于所述第一储液箱的相对两对角。
  5. 根据权利要求3所述的换热装置，其特征在于，
    所述介质进口位于所述蒸发器的侧壁，所述介质出口位于所述蒸发器的顶端。
  6. 根据权利要求1所述的换热装置，其特征在于，所述第二储液箱形成有进口和出口，所述第二储液箱的出口连通于所述第一储液箱，所述第二储液箱的进口连通于所述蒸发器的介质出口；
    其中，所述进液口位于所述第二储液箱的出口远离所述第二储液箱的进口的一侧，且所述排气口位于所述第二储液箱的进口远离所述第二储液箱的出口的一侧。
  7. 根据权利要求1所述的换热装置，其特征在于，所述换热装置包括设置于所述第一储液箱的第一加热器和/或设置于所述第二储液箱的第二加热器。
  8. 一种洗碗机，其特征在于，所述洗碗机包括权利要求1-7中任一项所述 的换热装置。
  9. 根据权利要求8所述的洗碗机，其特征在于，所述洗碗机包括热泵装置和水杯，所述热泵装置包括冷凝器，所述水杯的出口连通于所述冷凝器的进水口，且所述水杯的排水口用于排出污水；
    其中，所述冷凝器的进水口高于所述洗碗机的水杯出口，所述水杯出口高于所述水杯的排水口。
  10. 根据权利要求9所述的洗碗机，其特征在于，所述冷凝器的冷媒出口、冷媒进口和出水口，以及所述蒸发器的介质出口、冷媒出口和冷媒进口均朝向同一方向设置。
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