WO2020173032A1 - 洗涤电器 - Google Patents

洗涤电器 Download PDF

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Publication number
WO2020173032A1
WO2020173032A1 PCT/CN2019/094709 CN2019094709W WO2020173032A1 WO 2020173032 A1 WO2020173032 A1 WO 2020173032A1 CN 2019094709 W CN2019094709 W CN 2019094709W WO 2020173032 A1 WO2020173032 A1 WO 2020173032A1
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WO
WIPO (PCT)
Prior art keywords
heat exchange
communication member
cold storage
washing
heat
Prior art date
Application number
PCT/CN2019/094709
Other languages
English (en)
French (fr)
Inventor
刘超鹏
蔡思琦
Original Assignee
佛山市顺德区美的洗涤电器制造有限公司
美的集团股份有限公司
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 佛山市顺德区美的洗涤电器制造有限公司, 美的集团股份有限公司 filed Critical 佛山市顺德区美的洗涤电器制造有限公司
Priority to EP19916577.0A priority Critical patent/EP3854289A4/en
Publication of WO2020173032A1 publication Critical patent/WO2020173032A1/zh

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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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
    • 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
    • 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
    • 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
    • A47L15/4278—Nozzles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention relates to the field of household appliances, in particular to a washing appliance.
  • the condenser when the dishwasher adopts heat pump heating technology, the condenser is usually directly connected to the water flow system of the dishwasher. During the washing process, the washing water directly passes through the condenser and is circulated to be heated to a specified temperature to achieve the High temperature washing.
  • the heat exchange efficiency between the evaporator and the air is low when the heat pump technology is used for heating, so that the washing water cannot be sufficiently heated.
  • the cold heat generated during the working process of the heat pump system is discharged through the fan in the form of cold air, which easily causes the temperature of the kitchen to decrease, and the noise of the fan is large, which affects the user experience.
  • the invention provides a washing appliance.
  • the washing appliance includes a washing system and a heat pump system.
  • the washing system includes a cavity.
  • the heat pump system includes a first heat exchange device, a compressor, a second heat exchange device, and a throttling device.
  • the heat exchange device includes a first communication member and a second communication member. The first communication member, the compressor, the second heat exchange device, and the throttling device are sequentially connected to form a closed circuit in which the refrigerant flows.
  • the second communication member is connected to the first communication member to perform convective heat exchange with the refrigerant in the first communication member, and the second heat exchange device is configured to perform heat exchange with the pipeline of the washing system Heating the washing liquid leading to the cavity.
  • the second connecting part and the first connecting part adopt convection heat exchange, so that the heat exchange efficiency is high.
  • the refrigerant in the first communicating part fully absorbs heat and vaporizes into low-pressure steam.
  • the compressor can compress the above-mentioned low-pressure steam into high-temperature and high-pressure steam, and the above-mentioned high-temperature and high-pressure steam enters the second heat exchange device , In order to achieve sufficient heating of the washing liquid of the washing system.
  • the cold heat generated during the working process of the heat pump system does not need to be discharged in the form of cold air through a fan, which will not cause the temperature of the kitchen to decrease, reduce noise, and improve user experience.
  • the heat pump system includes a cold storage device in which a cold storage agent is provided, the first heat exchange device is provided in the cold storage device, and the cold storage device is configured to pass through the cold storage device.
  • the cold storage medium exchanges heat with the refrigerant in the first communication member.
  • the cold storage device is a water tank, and the cold storage agent is water.
  • the first communication member is immersed in the cold storage agent.
  • the heat pump system includes a circulation pump
  • the second communication member communicates with the inside of the cold storage device
  • the circulation pump pipeline connects the second communication member and the cold storage device so that the The cold storage agent circulates.
  • the flow direction of the liquid in the second communication member is opposite to the flow direction of the refrigerant in the first communication member.
  • a first cavity is formed in the first communication member, and the second communication member is at least partially located in the first cavity.
  • the second communication member has a tubular structure, and the portion of the second communication member located in the first chamber is bent.
  • the washing appliance includes a third heat exchange device
  • the third heat exchange device pipeline connects the second communication member and the cold storage device
  • the third heat exchange device is configured to The cold storage agent flowing through the third heat exchange device exchanges heat with air.
  • the washing appliance includes a fan device, and the fan device is used to cool the third heat exchange device.
  • Fig. 1 is a schematic structural diagram of a washing appliance according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of a heat pump system of a washing appliance according to an embodiment of the present invention
  • Fig. 3 is another structural schematic diagram of the heat pump system of the washing appliance according to the embodiment of the present invention.
  • Washing appliance 100 washing system 10, cavity 11, water cup 111, washing pump 12, spray arm assembly 13, pipeline 14, heat pump system 20, first heat exchange device 21, first communication member 211, first housing 2110 , First chamber 2111, second communication member 212, compressor 22, second heat exchange device 23, third communication member 231, second housing 2310, second chamber 2311, fourth communication member 232, throttle The device 24, the cold storage device 25, the tank 251, the circulating pump 26, the third heat exchange device 30, and the fan device 31.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present invention, “plurality” means two or more than two, unless specifically defined otherwise.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connect, or connect in one piece. It can be a mechanical connection or an electrical connection. It can be directly connected, or indirectly connected through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements.
  • the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.
  • the washing appliance 100 includes a washing system 10 and a heat pump system 20.
  • the washing appliance 100 is, for example, a dishwasher. It can be understood that the washing appliance can also be other appliances that use water, such as a washing machine.
  • the washing system 10 includes a cavity 11 and a washing pump 12.
  • the washing pump 12 is connected to the cavity 11 through a pipeline.
  • the heat pump system 20 includes a first heat exchange device 21, a compressor 22, a second heat exchange device 23 and a throttling device 24.
  • the first heat exchange device 21 includes a first communication member 211 and a second communication member 212.
  • the first communication member 211, the compressor 22, the second heat exchange device 23, and the throttling device 24 are sequentially connected to form a closed circuit in which the refrigerant flows.
  • the second communication member 212 is connected to the first communication member 211 to perform convective heat exchange with the refrigerant in the first communication member 211.
  • the second heat exchange device 23 is configured to exchange heat with the pipeline of the washing system 10 to heat the washing liquid leading to the cavity 11.
  • the first heat exchange device 21 when the heat pump system 20 is working, the first heat exchange device 21 is used as an evaporator, and the refrigerant in the first communication member 211 absorbs heat and vaporizes into low-pressure steam.
  • the heat exchange mode of the second communication member 212 and the first communication member 211 is indirect heat exchange.
  • the flow direction of the liquid (for example, water) in the second communication member 212 is opposite to the flow direction of the refrigerant in the first communication member 211 to realize the convective heat exchange between the second communication member 212 and the first communication member 211.
  • the compressor 22 can compress the aforementioned low-pressure vapor into high-temperature and high-pressure vapor.
  • the second heat exchange device 23 is used as a condenser, and the heat of the high-temperature and high-pressure steam in the second heat exchange device 23 is transferred to the pipeline of the washing system 10 to heat the washing liquid of the washing system 10.
  • the throttling device 24 is used for throttling the heat-exchanged high-temperature and high-pressure vapor into a low-temperature and low-pressure liquid state.
  • the above-mentioned low-temperature and low-pressure liquid returns to the first connecting member 211 to absorb heat again to evaporate, and enter the next cycle.
  • the washing pump 12 can pump the heated washing liquid into the cavity 11 to wash the dishes located in the cavity 11. It is understood that the washing liquid may be water or a mixed liquid of water and detergent.
  • first communication member may include one or more first heat exchange tubes
  • second communication member may include one or more second heat exchange tubes.
  • the first heat exchange tube and the second heat exchange tube may adopt a tube-in-tube structure to promote the convective heat exchange between the first communicating part and the second communicating part.
  • the connection mode of the first communication member 211 and the second communication member 212 of this embodiment is detailed below.
  • the washing system 10 includes a spray arm assembly 13.
  • the washing pump 12 is connected to the cavity 11 and the spray arm assembly 13 through the pipeline 14 respectively.
  • a water cup 111 is formed in the lower part of the cavity 11 for collecting the washing liquid in the cavity 11.
  • the spray arm assembly 13 is arranged in the cavity 11, the washing pump 12 is arranged outside the cavity 11, and the washing pump 12 is connected to the water cup through a pipe 14. 111 and spray arm assembly 13.
  • the washing system 10 is turned on, and the washing pump 12 continuously circulates the washing liquid in the water cup 111 to the various spray arms of the spray arm assembly 13 through the pipeline 14, so as to achieve the purpose of cleaning items (such as Figure 1 shows the arrow on the pipeline of the washing system 10).
  • the heat pump system 20 starts to work, and the heat of the high-temperature and high-pressure steam in the second heat exchange device 23 is transferred to the pipeline of the washing system 10 to heat the washing liquid of the washing system 10.
  • the heated washing liquid is delivered to each spray arm of the spray arm assembly 13 through the pipeline 14 under the pumping action of the washing pump 12.
  • the spray arm assembly 13 has a spray arm.
  • the number of spray arms of the spray arm assembly 13 can be specifically adjusted, which is not specifically limited here.
  • the washing appliance 100 is a dishwasher, which has a spray arm assembly 13.
  • the washing appliance 100 may be an appliance that uses water such as a washing machine, and the washing machine may omit the spray arm assembly.
  • the compressor 22 may be a horizontal compressor or a vertical compressor
  • the second heat exchange device may be a condenser or a condensing tube, which is not specifically limited and can be determined according to actual conditions.
  • the throttling device 24 includes an expansion valve. After being condensed by the second heat exchange device 23, the low-temperature and high-pressure liquid refrigerant is throttled by the orifice of the expansion valve, and becomes a low-temperature and low-pressure mist-like hydraulic refrigerant, which is created for the evaporation of the refrigerant. condition.
  • the throttling device 24 can also be of other types, such as capillary tubes, etc., which is not specifically limited.
  • the second connecting member 212 and the first connecting member 211 adopt convection heat exchange, so that the heat exchange efficiency is high.
  • the refrigerant in the first communicating member 211 fully absorbs heat and vaporizes into low-pressure steam.
  • the compressor 22 can compress the above-mentioned low-pressure steam into high-temperature and high-pressure steam, and the above-mentioned high-temperature and high-pressure steam enters the second exchange
  • the heating device 23 can fully heat the washing liquid of the washing system 10.
  • the cold heat generated during the working process of the heat pump system 20 does not need to be discharged in the form of cold air through a fan, which will not cause the temperature of the kitchen to decrease, reduce noise, and improve user experience.
  • the heat pump system 20 includes a cold storage device 25.
  • the cold storage device 25 is provided with a cold storage agent (not shown).
  • the first heat exchange device 21 is provided in the cold storage device 25.
  • the cold storage device 25 is configured to exchange heat with the refrigerant in the first communication member 211 through the cold storage medium. In this way, the area for heat exchange between the refrigerant of the first communicating member 211 and the outside is increased, so that the latent heat in the cold storage agent can be effectively used, that is, the refrigerant in the first communicating member 211 can also effectively absorb the heat in the cold storage agent.
  • the cold storage agent is, for example, water or a cold storage material.
  • the cold storage device 25 is a water tank, and the cold storage agent is water.
  • the first heat exchange device 21 is immersed in the cold storage agent. In this way, the area for heat exchange between the cold storage device 25 and the first communication member 211 is large, and the latent heat in the cold storage agent can be fully utilized. In addition, the first heat exchange device 21 is immersed in the cold storage agent, which can also prevent the outside of the first communication member 211 from freezing.
  • the heat pump system 20 includes a circulating pump 26.
  • the second communication member 212 communicates with the inside of the cold storage device 25.
  • the circulation pump 26 pipe-connects the second communication member 212 and the cold storage device 25 to circulate the cold storage medium.
  • the cold storage device 25 includes a box 251.
  • the cold storage agent is provided in the box 251.
  • the circulation pump 26 is located outside the tank 251.
  • the first heat exchange device 21 is disposed in the box body 251.
  • the cold storage agent inside the tank 251 can quickly flow through the second connecting member 212 under the pumping action of the circulating pump 26 and then return to the cold storage device 25 (as shown by the arrows in FIGS. 2 and 3), which can strengthen
  • the heat exchange efficiency between the refrigerant and the cold storage agent in the first connecting member 211 can greatly reduce the heat exchange area of the first heat exchange device 21.
  • the length of the pipeline of the first heat exchange device can also be shortened, so that the design of the first heat exchange device is more compact.
  • a first cavity 2111 is formed in the first communication member 211.
  • the second communication member 212 is at least partially located in the first chamber 2111.
  • the first communication member 211 has a first housing 2110.
  • a first cavity 2111 is formed in the first housing 2110.
  • the first housing 2110 may be made of corrosion-resistant and high-pressure materials.
  • the second communication member 212 may adopt a tubular structure, and the second communication member 212 is resistant to corrosion and high pressure. At least part of the second communication member 212 is located in the first chamber 2111.
  • the low-temperature and low-pressure gas-liquid two-phase refrigerant flows into the first chamber 2111, and can exchange heat through the wall of the first housing 2110 and the cold storage agent in the box 251, or through the The wall surface of the second communication member 212 performs forced convection heat exchange with the cold storage medium in the second communication member 212. Under this heat exchange, the internal refrigerant of the first communicating member 211 releases the cold energy into the cold storage amount in two directions, so that the low-temperature and low-pressure gas-liquid two-phase refrigerant flowing in from the throttling device 24 quickly evaporates and becomes a superheated gas. The refrigerant then flows into the compressor 22.
  • the volume of the first chamber 2111 can be controlled by controlling the outer diameter of the second communication member 212 and the inner diameter of the first housing 2110. Make adjustments.
  • the first heat exchange device 21 of this embodiment does not cause the refrigerant charging amount of the heat pump system 20 to increase.
  • the first heat exchange device 21 of this embodiment can reduce the amount of refrigerant charged, and can also reduce the pressure drop of the first heat exchange device 21 to a certain extent, so that the heating efficiency of the heat pump system 20 is increased.
  • the second communicating member 212 has a tubular structure, and the portion of the second communicating member 212 located in the first chamber 2111 is bent. In this way, the area for heat exchange between the second communication member 212 and the first communication member 211 is increased.
  • the second heat exchange device 23 includes a third communication member 231 and a fourth communication member 232.
  • the first communication member 211, the compressor 22, the third communication member 231, and the throttling device 24 are sequentially connected to form a closed circuit in which the refrigerant flows.
  • the third communication member 231 exchanges heat with the pipeline of the washing system 10 through the fourth communication member 232.
  • the third communicating member 231 is thermally connected to the fourth communicating member 232, and the high-temperature and high-pressure vapor compressed by the compressor 22 enters the third communicating member 231 to communicate with the liquid (for example, washing liquid) in the fourth communicating member 232 Indirect heat exchange is performed to heat the washing liquid in the pipeline of the washing system 10, so that the heat exchange efficiency is high.
  • a second cavity 2311 is formed in the third communication member 231.
  • the fourth communication member 231 is at least partially located in the second chamber 2311.
  • the third communication member 231 has a second housing 2310.
  • a second cavity 3111 is formed in the second housing 2310.
  • the second housing 2310 can be made of corrosion-resistant and high-pressure materials.
  • the fourth communication member 232 may adopt a tubular structure, and the fourth communication member 232 is resistant to corrosion and high pressure. At least part of the fourth communication member 232 is located in the second chamber 3111.
  • the high-temperature and high-pressure vapor compressed by the compressor 22 enters the inside of the third communicating member 231, and can perform forced convection heat exchange through the wall surface of the fourth communicating member 232 and the cold storage agent in the fourth communicating member 232 (as shown in Figures 2 and 2 is shown by the arrow).
  • the part of the third communication member 231 in the second cavity 2311 may be bent.
  • the washing appliance 100 includes a third heat exchange device 30.
  • the third heat exchange device 30 pipeline connects the second communication member 212 and the cold storage device 25.
  • the third heat exchange device 30 is configured to exchange heat between the cold storage medium flowing through the third heat exchange device 30 and air.
  • the third heat exchange device 30 may be directly connected to the cold storage device 25 and the second communication member 212, or may be indirectly connected to the cold storage device 25 and the second communication member 212.
  • one end of the circulating pump 26 is connected to the tank 251 with a pipe, and the other end of the circulating pump 26 is connected to the second connecting member 212.
  • the cold storage agent inside the tank 251 can flow out of the tank 251 under the pumping action of the circulating pump 26, and exchange heat with the air through the third heat exchange device 30 to absorb the heat of the air. This can increase the temperature difference between the cold storage agent and the refrigerant in the tank 251.
  • the washing appliance 100 includes a fan device 31.
  • the fan device 31 is used to cool the third heat exchange device 30.
  • the arrangement of the fan device 31 can improve the efficiency of heat exchange between the cold storage medium flowing through the third heat exchange device 30 and the air.
  • the "above” or “below” of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them.
  • “above”, “above” and “above” the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature.
  • the “below”, “below” and “below” the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the first feature has a lower level than the second feature.
  • the disclosure herein provides many different embodiments or examples for realizing different structures of the present invention.
  • the components and settings of specific examples are described herein. Of course, they are only examples and are not intended to limit the invention.
  • the present invention may repeat reference numerals and/or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and/or settings discussed.
  • the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and/or the use of other materials.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Textile Engineering (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Washing And Drying Of Tableware (AREA)

Abstract

一种洗涤电器(100)，洗涤电器(100)包括洗涤系统(10)和热泵系统(20)，所述洗涤系统(10)包括洗涤泵(12)，热泵系统(20)包括第一换热装置(21)、压缩机(22)、第二换热装置(23)和节流装置(24)，第一换热装置(21)包括第一连通部件(211)和第二连通部件(212)，第一连通部件(211)、压缩机(22)、第二换热装置(23)和节流装置(24)依次连接以形成冷媒流动的密闭回路，第二连通部件(212)连接第一连通部件(211)以与第一连通部件(211)内的冷媒进行对流换热，第二换热装置(212)被配置成与洗涤系统(10)的管路(14)进行热交换以加热通向腔体(11)的洗涤液。

Description

洗涤电器
优先权信息
本申请请求2019年02月25日向中国国家知识产权局提交的、专利申请号为201910138756.5的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本发明涉及家用电器领域，尤其是涉及一种洗涤电器。
背景技术
相关技术中，洗碗机采用热泵制热技术时，冷凝器通常直接接入洗碗机的水流系统，在洗涤过程中，洗涤水直接经过冷凝器后被循环加热到指定温度，实现对餐具的高温洗涤。然而，相关技术中采用热泵技术制热时蒸发器与空气的换热效率较低，导致洗涤水不能得到充分的加热。另外，热泵系统工作过程中产生的冷量热交换后通过风机以冷风的形式排出，容易导致厨房的温度降低，并且风机的噪音较大，影响用户体验。
发明内容
本发明提供一种洗涤电器。
本发明实施方式的洗涤电器包括洗涤系统和热泵系统，所述洗涤系统包括腔体，所述热泵系统包括第一换热装置、压缩机、第二换热装置和节流装置，所述第一换热装置包括第一连通部件和第二连通部件，所述第一连通部件、所述压缩机、所述第二换热装置和所述节流装置依次连接以形成冷媒流动的密闭回路，所述第二连通部件连接所述第一连通部件以与所述第一连通部件内的冷媒进行对流换热，所述第二换热装置被配置成与所述洗涤系统的管路进行热交换以加热通向所述腔体的洗涤液。
上述洗涤电器中，第二连通部件与第一连通部件采用对流换热，这样换热效率较高。在洗涤水需要加热时，第一连通部件内的冷媒充分吸收热量后气化成低压蒸气，然后压缩机能够将上述的低压蒸气压缩为高温高压的蒸气，上述高温高压的蒸气进入第二换热装置，以实现对洗涤系统的洗涤液的充分加热。另外，热泵系统工作过程中产生的冷量热交换后不需要通过风机以冷风的形式排出，这样不会导致厨房的温度降低，并且降低了噪音，提升了用户体验。
在某些实施方式中，所述热泵系统包括蓄冷装置，所述蓄冷装置内设置有蓄冷剂，所述第一换热装置设置于所述蓄冷装置内，所述蓄冷装置被配置成通过所述蓄冷剂与所 述第一连通部件内的冷媒进行热交换。
在某些实施方式中，所述蓄冷装置为水箱，所述蓄冷剂为水。
在某些实施方式中，所述第一连通部件沉浸于所述蓄冷剂中。
在某些实施方式中，所述热泵系统包括循环泵，所述第二连通部件连通所述蓄冷装置内部，所述循环泵管路连接所述第二连通部件及所述蓄冷装置以使所述蓄冷剂循环流动。
在某些实施方式中，所述第二连通部件内的液体的流动方向与所述第一连通部件内的冷媒的流动方向相反。
在某些实施方式中，所述第一连通部件内形成有第一腔室，所述第二连通部件至少部分地位于所述第一腔室内。
在某些实施方式中，所述第二连通部件为管状结构，位于所述第一腔室内的所述第二连通部件的部分呈弯折状。
在某些实施方式中，所述洗涤电器包括第三换热装置，所述第三换热装置管路连接所述第二连通部件及所述蓄冷装置，所述第三换热装置被配置成将流经所述第三换热装置的蓄冷剂与空气进行热交换。
在某些实施方式中，所述洗涤电器包括风机装置，所述风机装置用于冷却所述第三换热装置。
本发明实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的洗涤电器的结构示意图；
图2是本发明实施方式的洗涤电器的热泵系统的结构示意图；
图3是本发明实施方式的洗涤电器的热泵系统的另一结构示意图。
主要元件符号说明：
洗涤电器100、洗涤系统10、腔体11、水杯111、洗涤泵12、喷臂组件13、管路14、热泵系统20、第一换热装置21、第一连通部件211、第一壳体2110、第一腔室2111、第二连通部件212、压缩机22、第二换热装置23、第三连通部件231、第二壳体2310、第二腔室2311、第四连通部件232、节流装置24、蓄冷装置25、箱体251、循环泵26、 第三换热装置30、风机装置31。
具体实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
请一并参阅图1，本发明实施方式的洗涤电器100包括洗涤系统10和热泵系统20。其中，洗涤电器100例如为洗碗机。可以理解，洗涤电器还可为其它用水的电器，例如洗衣机。
请结合图1，洗涤系统10包括腔体11和洗涤泵12。洗涤泵12通过管路连接腔体11。热泵系统20包括第一换热装置21、压缩机22、第二换热装置23和节流装置24。第一换热装置21包括第一连通部件211和第二连通部件212。第一连通部件211、压缩机22、第二换热装置23和节流装置24依次连接以形成冷媒流动的密闭回路。第二连通部件212连接第一连通部件211以与第一连通部件211内的冷媒进行对流换热。第二换热装置23被配置成与洗涤系统10的管路进行热交换以加热通向腔体11的洗涤液。
具体地，在热泵系统20工作时，第一换热装置21作为蒸发器使用，第一连通部件211内的冷媒吸收热量而气化成低压蒸气。其中，第二连通部件212和第一连通部件211的换热方式为间接换热。第二连通部件212内的液体(例如水)的流动方向与第一连通 部件211内的冷媒的流动方向相反以实现第二连通部件212与第一连通部件211的对流换热。压缩机22能够将上述的低压蒸气压缩为高温高压的蒸气。第二换热装置23作为冷凝器使用，第二换热装置23内的高温高压的蒸气的热量传递至洗涤系统10的管路以加热洗涤系统10的洗涤液。节流装置24用于将换热后的上述高温高压的蒸气节流成低温低压的液态。上述低温低压的液态再回流至第一连通部件211内以进行再次吸热蒸发，并进入下一个循环。洗涤泵12能够将加热后的洗涤液泵至腔体11内部以清洗位于腔体11内部的餐具。可以理解，洗涤液可以是水或水和洗涤剂的混合液。
可以理解，第一连通部件可包括一个或多个第一换热管，第二连通部件可包括一个或多个第二换热管。第一换热管和第二换热管可采用套管式结构，以促进第一连通部件和第二连通部件的对流换热。本实施方式的第一连通部件211和第二连通部件212的连接方式详见下文。
请结合图1，洗涤系统10包括喷臂组件13。洗涤泵12通过管路14分别连接腔体11和喷臂组件13。腔体11下部形成有水杯111，用于集结腔体11内的洗涤液，喷臂组件13设置在腔体11内，洗涤泵12设置在腔体11外，洗涤泵12通过管路14连接水杯111和喷臂组件13。在利用洗涤电器100进行洗涤时，洗涤系统10开启，洗涤泵12将水杯111内的洗涤液不断通过管路14循环输送至喷臂组件13的各个喷臂，从而达到对物品清洗的目的(如图1洗涤系统10的管路上的箭头所示)。在需要使用热水进行洗涤时，热泵系统20开始工作，第二换热装置23内的高温高压的蒸气的热量传递至洗涤系统10的管路以加热洗涤系统10的洗涤液。加热后的洗涤液在洗涤泵12的泵送作用下通过管路14输送至喷臂组件13的各个喷臂。
在图1所示的示例中，喷臂组件13具有一个喷臂。在其它实施方式中，喷臂组件13的喷臂数量可具体调整，在此不作具体限定。在本发明的示例中，洗涤电器100为洗碗机，其具有喷臂组件13。在其它例子中，洗涤电器100可为洗衣机等用水的电器，洗衣机可省略喷臂组件。
需要说明的是，压缩机22可以采用卧式压缩机或者立式压缩机，第二换热装置可以为冷凝器或者冷凝管，具体不作限制，可根据实际情况而定。
节流装置24包括膨胀阀，经过第二换热装置23冷凝后形成的低温高压的液态冷媒经过膨胀阀的节流孔节流后，成为低温低压的雾状的液压冷媒，为冷媒的蒸发创造条件。当然，节流装置24也可以为其它类型，例如毛细管等，具体不作限制。
综上所述，第二连通部件212与第一连通部件211采用对流换热，这样换热效率较高。在洗涤水需要加热时，第一连通部件211内的冷媒充分吸收热量后气化成低压蒸气，然后压缩机22能够将上述的低压蒸气压缩为高温高压的蒸气，上述高温高压的蒸气进 入第二换热装置23，以实现对洗涤系统10的洗涤液的充分加热。另外，热泵系统20工作过程中产生的冷量热交换后不需要通过风机以冷风的形式排出，这样不会导致厨房的温度降低，并且降低噪音，提升了用户体验。在某些实施方式中，热泵系统20包括蓄冷装置25。蓄冷装置25内设置有蓄冷剂(图未示出)。第一换热装置21设置于蓄冷装置25内。蓄冷装置25被配置成通过蓄冷剂与第一连通部件211内的冷媒进行热交换。如此，这样增加了第一连通部件211的冷媒与外部进行热交换的面积，这样可有效利用蓄冷剂内的潜热，即第一连通部件211内的冷媒还能够有效吸收蓄冷剂内的热量。
需要说明的是，蓄冷剂例如为水或者蓄冷材料。在一些例子中，蓄冷装置25为水箱，蓄冷剂为水。
在某些实施方式中，第一换热装置21沉浸于蓄冷剂中。如此，这样蓄冷装置25与第一连通部件211进行热交换的面积大，并可充分有效利用蓄冷剂内的潜热。另外，第一换热装置21沉浸于蓄冷剂中，还可防止第一连通部件211外部结冰。
请结合图2及图3，在某些实施方式中，热泵系统20包括循环泵26。第二连通部件212连通蓄冷装置25内部。循环泵26管路连接第二连通部件212及蓄冷装置25以使蓄冷剂循环流动。
具体地，蓄冷装置25包括箱体251。蓄冷剂设置于箱体251内。循环泵26位于箱体251外。第一换热装置21设置于箱体251中。箱体251内部的蓄冷剂能够在循环泵26的泵送作用下在第二连通部件212中快速流过后重新返回至蓄冷装置25内(如图2及图3的箭头所示)，这样能够强化第一连通部件211内的冷媒与蓄冷剂之间的换热效能，可大幅度减少第一换热装置21的换热面积。在第一连通部件和第二连通部件采用管式结构时，还可缩短第一换热装置的管路的长度，使第一换热装置设计更为紧凑。
在某些实施方式中，第一连通部件211内形成有第一腔室2111。第二连通部件212至少部分地位于第一腔室2111内。
具体地，第一连通部件211具有第一壳体2110。第一壳体2110内形成有第一腔室2111。其中，第一壳体2110可采用耐腐蚀和高压的材料制成。第二连通部件212可采用管状结构，并且第二连通部件212耐腐蚀和高压。第二连通部件212的至少部分位于第一腔室2111内。经过节流装置24节流后低温低压的气液两相冷媒流入第一腔室2111内，并可通过第一壳体2110的壁与箱体251内的蓄冷剂实现热交换，也可通过第二连通部件212的壁面与第二连通部件212内的蓄冷剂进行强制对流换热。在此换热下，第一连通部件211的内冷媒将冷量通过两个方向释放于蓄冷剂量当中，使从节流装置24流入的低温低压的气液两相冷媒快速蒸发，变成过热气态冷媒后流入压缩机22。
可以理解，在第一壳体2110为管状结构，并且第二连通部件212为管状结构时， 第一腔室2111的体积可以通过控制第二连通部件212的外径和第一壳体2110的内径进行调节。本实施方式的第一换热装置21不会造成热泵系统20的冷媒充灌量增加。本实施方式的第一换热装置21能够降低冷媒充灌量的同时，亦可一定程度降低第一换热装置21的压降，使热泵系统20的制热效能增大。
在某些实施方式中，第二连通部件212为管状结构，位于第一腔室2111内的第二连通部件212的部分呈弯折状。如此，这样增大了第二连通部件212与第一连通部件211进行热交换的面积。
在某些实施方式中，第二换热装置23包括第三连通部件231和第四连通部件232。第一连通部件211、压缩机22、第三连通部件231和节流装置24依次连接以形成冷媒流动的密闭回路。第三连通部件231通过第四连通部件232与洗涤系统10的管路进行热交换。第三连通部件231与第四连通部件232导热地连接，经由压缩机22压缩后的高温高压的蒸气进入第三连通部件231内部，以与第四连通部件232内的液体(例如为洗涤液)进行间接换热，以实现对洗涤系统10的管路的洗涤液的加热，这样换热效率较高。
在某些实施方式中，第三连通部件231内形成有第二腔室2311。第四连通部件231至少部分地位于第二腔室2311内。
第三连通部件231具有第二壳体2310。第二壳体2310内形成有第二腔室3111。其中，第二壳体2310可采用耐腐蚀和高压的材料制成。第四连通部件232可采用管状结构，并且第四连通部件232耐腐蚀和高压。第四连通部件232的至少部分位于第二腔室3111内。经过压缩机22压缩后的高温高压的蒸气进入第三连通部件231内部，并可通过第四连通部件232的壁面与第四连通部件232内的蓄冷剂进行强制对流换热(如图2及图2的箭头所示)。
可以理解，为了提高换热的面积，可使位于第二腔室2311内的第三连通部件231的部分呈弯折状。
请结合图3，在某些实施方式中，洗涤电器100包括第三换热装置30。第三换热装置30管路连接第二连通部件212及蓄冷装置25。第三换热装置30被配置成将流经第三换热装置30的蓄冷剂与空气进行热交换。
需要说明的是，第三换热装置30可直接连接蓄冷装置25及第二连通部件212，也可间接连接蓄冷装置25及第二连通部件212。在图3所示的例子中，循环泵26一端管路连通箱体251，循环泵26另一端管路连通第二连通部件212。箱体251内部的蓄冷剂能够在循环泵26的泵送作用下流出箱体251，并经由第三换热装置30以与空气进行热交换，以吸收空气的热量。这样能够提高箱体251内的蓄冷剂与冷媒的温差。
请结合图3，在某些实施方式中，洗涤电器100包括风机装置31。风机装置31用于冷却第三换热装置30。风机装置31的设置能够提高流经第三换热装置30的蓄冷剂与空气进行热交换的效率。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
本文的公开提供了许多不同的实施方式或例子用来实现本发明的不同结构。为了简化本发明的公开，本文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本发明提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管已经示出和描述了本发明的实施方式，本领域的普通技术人员可以理解：在不脱离本发明的原理和宗旨的情况下可以对这些实施方式进行多种变化、修改、替换和变型，本发明的范围由权利要求及其等同物限定。

Claims (10)

  1. 一种洗涤电器，其特征在于，包括：
    洗涤系统，所述洗涤系统包括腔体；
    热泵系统，所述热泵系统包括第一换热装置、压缩机、第二换热装置和节流装置，所述第一换热装置包括第一连通部件和第二连通部件，所述第一连通部件、所述压缩机、所述第二换热装置和所述节流装置依次连接以形成冷媒流动的密闭回路，所述第二连通部件连接所述第一连通部件以与所述第一连通部件内的冷媒进行对流换热，所述第二换热装置被配置成与所述洗涤系统的管路进行热交换以加热通向所述腔体的洗涤液。
  2. 如权利要求1所述的洗涤电器，其特征在于，所述热泵系统包括蓄冷装置，所述蓄冷装置内设置有蓄冷剂，所述第一换热装置设置于所述蓄冷装置内，所述蓄冷装置被配置成通过所述蓄冷剂与所述第一连通部件内的冷媒进行热交换。
  3. 如权利要求2所述的洗涤电器，其特征在于，所述蓄冷装置为水箱，所述蓄冷剂为水。
  4. 如权利要求2所述的洗涤电器，其特征在于，所述第一连通部件沉浸于所述蓄冷剂中。
  5. 如权利要求2所述的洗涤电器，其特征在于，所述热泵系统包括循环泵，所述循环泵管路连接所述第二连通部件及所述蓄冷装置以使所述蓄冷剂循环流动。
  6. 如权利要求1所述的洗涤电器，其特征在于，所述第二连通部件内的液体的流动方向与所述第一连通部件内的冷媒的流动方向相反。
  7. 如权利要求1所述的洗涤电器，其特征在于，所述第一连通部件内形成有第一腔室，所述第二连通部件至少部分地位于所述第一腔室内。
  8. 如权利要求7所述的洗涤电器，其特征在于，所述第二连通部件为管状结构，位于所述第一腔室内的所述第二连通部件的部分呈弯折状。
  9. 如权利要求2所述的洗涤电器，其特征在于，所述洗涤电器包括第三换热装置，所述第三换热装置管路连接所述第二连通部件及所述蓄冷装置，所述第三换热装置被配置成将流经所述第三换热装置的蓄冷剂与空气进行热交换。
  10. 如权利要求9所述的洗涤电器，其特征在于，所述洗涤电器包括风机装置，所述风机装置用于冷却所述第三换热装置。
PCT/CN2019/094709 2019-02-25 2019-07-04 洗涤电器 WO2020173032A1 (zh)

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