WO2021018094A1 - Pompe à chaleur et appareil ménager la comprenant - Google Patents

Pompe à chaleur et appareil ménager la comprenant Download PDF

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Publication number
WO2021018094A1
WO2021018094A1 PCT/CN2020/104894 CN2020104894W WO2021018094A1 WO 2021018094 A1 WO2021018094 A1 WO 2021018094A1 CN 2020104894 W CN2020104894 W CN 2020104894W WO 2021018094 A1 WO2021018094 A1 WO 2021018094A1
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WO
WIPO (PCT)
Prior art keywords
groove
heating
heat
heating element
pump body
Prior art date
Application number
PCT/CN2020/104894
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English (en)
Chinese (zh)
Inventor
王松
Original Assignee
佛山市威灵洗涤电机制造有限公司
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Publication of WO2021018094A1 publication Critical patent/WO2021018094A1/fr

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    • 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
    • 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
    • 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
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer

Definitions

  • This application relates to a household appliance, in particular to a heat pump and a household appliance having the same.
  • the pump cover is provided with a groove, and the heating element is arranged in the groove.
  • the inner side of the heating element is attached to the inner side of the groove to conduct heat.
  • the bottom edge is attached to the bottom edge of the groove for heat conduction.
  • the radial length of the lower bottom side of the heating element is often chosen to increase the overall bonding area, that is, the outer diameter of the pump body is limited. Under the conditions, increase the diameter of the outer side of the heating element. But in this case, on the one hand, the area that can be enlarged on the outer side is limited, on the other hand, the heating element is too close to the pump body.
  • the pump body is often made of non-metallic materials (such as PP, etc.). The heat of the heating element is transferred to the pump body through the pump cover.
  • the heat of the heating element is transferred to the pump body faster , Causing the temperature of the pump body to rise.
  • the test found that the temperature of the pump body under the traditional technology is often close to or even exceed the upper limit of its use, which shortens the service life of household appliances.
  • This application aims to solve at least one of the technical problems existing in the prior art. For this reason, this application aims to propose a heat pump to increase the heating contact area while reducing the heat transfer from the heating element to the pump body.
  • This application also aims to propose a household appliance with the above-mentioned heat pump.
  • the heat pump includes: a pump body defining a heating cavity, the pump body having a first end and a second end, the pump body being open at the first end; a pump cover assembly ,
  • the pump cover assembly includes: a thermally conductive cover fitted to the first end of the pump body, a part of the thermally conductive cover is recessed toward the second end of the pump body to form a first groove, A part of the bottom wall of the first groove is recessed toward the second end of the pump body to form a second groove, and the side wall of the second groove is spaced apart from the peripheral wall of the pump body; a heating element,
  • the heating element is arranged in the second groove, the heating element has a heating bottom surface that is thermally connected to the bottom surface of the second groove, and the heating element has a connection with the second groove.
  • the peripheral surface is attached to the heat-conductingly connected heating outer surface.
  • a first groove is provided on the heat-conducting cover, and a second groove is further provided on the bottom wall of the first groove, so that the rigidity of the heat-conducting cover and its restraining ability on the pump body become stronger;
  • the heating element goes deeper into the heating chamber, the liquid in the entire heating chamber absorbs heat from the heat conducting cover faster.
  • the heat conduction area between the heating element and the heat conducting cover can be greatly increased. Increase can reduce thermal resistance, improve heat transfer efficiency, and reduce power loss.
  • the shape of the first groove and the second groove to separate the side wall of the second groove from the pump body, and the second groove is filled with flowable liquid on the outside, the pump body is highly likely to be overheated Lowering can extend the service life of the heat pump.
  • the heating outer side surface is formed as a circular mesa with a diameter gradually increasing from the second end to the first end of the pump body, and the circular mesa is integral with the second groove.
  • the circumferential surface is connected in a thermally conductive manner.
  • the angle between the circumferential surface of the second groove and the bottom surface of the second groove is greater than 90 degrees, and is in the direction from the second end of the pump body to the first end The circumference of the peripheral surface of the second groove gradually increases.
  • an outlet is provided on the bottom wall of the second groove, and the heating element has a ring shape arranged around the outlet.
  • the inner peripheral surface of the heating element is a heating inner surface
  • the included angle between the heating outer surface and the heating bottom surface is greater than the included angle between the heating inner surface and the heating bottom surface .
  • the inner peripheral surface of the heating element is a heating inner surface.
  • the angle between a tangent to any point on the heating inner surface and the heating bottom surface is greater than or equal to 90 degrees.
  • the second groove has an annular shape arranged concentrically with the outlet, and the radial width of the bottom surface of the second groove is at least 1.5 times the radial width of the heating bottom surface,
  • the radial width of the bottom surface of the second groove is the difference between the outer diameter and the inner diameter of the bottom surface of the second groove, and the radial width of the heating bottom surface is the difference between the outer diameter and the inner diameter of the heating bottom surface value.
  • the pump body is provided with a sealing groove on the end surface of the first end
  • the pump cover assembly includes a sealing ring arranged in the sealing groove, and the depth of the first groove is greater than that of the first groove. The depth of the sealing groove.
  • the heating cavity is in the shape of a disc, and the diameter of the heating cavity is at least 3 mm larger than the maximum radial width of the second groove; the maximum radial width of the second groove is The largest dimension of the second groove in a direction perpendicular to the axis of the heating cavity.
  • the pump cover assembly further includes: a heat conductor, the heat conductor is provided between the heating element and the outlet, the heat conductor has a bottom surface of the second groove A thermally conductive bottom surface that is thermally connected, and the thermal conductor has a thermally conductive outer surface that is thermally connected to the inner peripheral surface of the heating element in a fit and thermally conductive manner.
  • the household appliance according to the present application includes the heat pump according to the above-mentioned embodiment of the present application.
  • the heating efficiency can be significantly improved, and the service life can be extended.
  • Fig. 1 is a schematic diagram of the structure of a heat pump in an embodiment.
  • Fig. 2 is a schematic diagram of the structure of the heating element in an embodiment.
  • Fig. 3 is a schematic diagram of the structure of the heat conducting cover in an embodiment.
  • Figure 4 is a schematic diagram of the pump body in an embodiment.
  • Fig. 5 is a schematic view of the structure of a heat conductor in an embodiment.
  • the heat pump 100 according to an embodiment of the present application will be described below with reference to the drawings.
  • the heat pump 100 includes: a pump body 1 and a pump cover assembly 2.
  • the pump body 1 defines a heating chamber V.
  • the pump body 1 has a first end 1A and a second end 1B.
  • the pump body 1 is open at the first end 1A, and the pump cover assembly 2 is fitted to the first end 1A of the pump body 1.
  • the pump cover assembly 2 includes a thermally conductive cover 21 and a heating element 22.
  • the thermally conductive cover 21 is fitted to the first end 1A of the pump body 1, and a part of the thermally conductive cover 21 faces the second end of the pump body 1.
  • 1B is recessed to form a first groove 211, and a part of the bottom wall of the first groove 211 is recessed toward the second end 1B of the pump body 1 to form a second groove 212.
  • the side walls of the second groove 212 and the pump body The peripheral walls of 1 are spaced apart.
  • the heating element 22 is arranged in the second groove 212, the heating element 22 has a heating bottom surface s5 that is thermally connected to the bottom surface s3 of the second groove 212, and the heating element 22 has a peripheral surface s4 attached to the second groove 212. Join the heat-conductingly connected heating outer side s6.
  • the heating pump 100 has a liquid circuit, and the heating chamber V is a part of the liquid circuit.
  • the heat-conducting cover 21 is used to cover one end of the heating chamber V, and the side of the heat-conducting cover 21 facing the heating chamber V is filled with liquid.
  • Most of the heat emitted by the heating element 22 after being energized passes through the heating element
  • the bonding surface between 22 and the heat conducting cover 21 is transferred to the heat conducting cover 21, and the heat received from the heating element 22 is transferred to the liquid flowing in the heating cavity V by the heat conducting cover 21.
  • the so-called hydroelectric separation means that the heating element 22 and the heated liquid are separated by the heat conducting cover 21, which is safer to use and can reduce accidents caused by the heated liquid directly contacting the heating element 22. For example, once a certain abnormality occurs, such as cracking of the pipe wall of the heating element 22, if the water and electricity are not separated, the heated liquid may enter the heating element 22, causing abnormal accidents such as electric leakage of household appliances.
  • a first groove 211 is provided on the heat conducting cover 21, and a second groove 212 is provided on the bottom wall of the first groove 211.
  • the first groove 211 and the second groove 212 are both facing the pump body 1.
  • the second end 1B is recessed.
  • first groove 211 and the second groove 212 are both recessed toward the inside of the heating cavity V, and the heating element 22 is deeper into the heating cavity V than in the existing solution, so that the entire heating cavity V is The liquid absorbs the heat on the heat conducting cover 21 faster.
  • the prior art solution that uses the lower bottom edge of the heating element to be attached to the bottom edge of the groove Compared with the prior art solution that uses the lower bottom edge of the heating element to be attached to the bottom edge of the groove, and the prior art solution that uses the lower bottom edge and the inner side of the heating element to adhere to the inner wall of the groove
  • the heating bottom surface s5 of the heating element 22 is attached to the bottom surface s3 of the second groove 212, but also the heating outer surface s6 of the heating element 22 is attached to the circumference of the second groove 212. If the surface s4 is attached, the heat conduction area between the heating element 22 and the heat conduction cover 21 can be greatly increased, and in the pump body 1 of the same size, the heat conduction area is increased by using the heating outer surface s6 bonding solution very large.
  • the heating outer surface s6 of the heating element 22 does not adhere to the peripheral surface s4 of the second groove 212, the heat transferred from the heating outer surface s6 of the heating element 22 is basically absorbed by the air and conducted to the air. The heat is basically lost as useless power. To reduce the power loss, the area where the heating element 22 and the heat conducting cover 21 are attached can be maximized.
  • the inner side of the additional heating element is selected as the bonding surface, but the diameter of the inner side is small, and the heat transfer area is also small, resulting in large thermal resistance and low heat transfer efficiency.
  • the heating outer surface s6 of the heating element 22 is selected as the bonding surface, and the bonding area is increased greatly, which can reduce the thermal resistance, improve the heat transfer efficiency, and reduce the power loss.
  • a part of the bottom wall of the first groove 211 forms a second groove 212, and the side wall of the second groove 212 is connected to the pump body.
  • the peripheral walls of 1 are spaced apart, and the heating element 22 is arranged in the second groove 212.
  • the above arrangement not only causes the side wall of the second groove 212 to be separated from the first end 1A of the pump body 1, but also the side wall of the second groove 212 is in diameter with the peripheral wall of the pump body 1. It also opened a distance upwards.
  • the second groove 212 is filled with liquid on the radially outer side, and most of the heat conducted from the heating outer surface s6 of the heating element 22 to the peripheral surface s4 of the second groove 212 can be absorbed by the liquid. Because the liquid has fluidity, the temperature of the liquid will not be too high after being heated. In summary, the possibility of the pump body 1 being overheated will be greatly reduced, thereby prolonging the service life of the pump body 1.
  • a first groove 211 is provided on the heat conducting cover 21, and a second groove 212 is further provided on the bottom wall of the first groove 211.
  • the confinement ability of the heating element becomes stronger; and because the heating element goes deeper into the heating cavity V, the liquid in the entire heating cavity V absorbs the heat on the heat conducting cover 21 faster.
  • the heating bottom surface s5 of the heating element 22 is attached to the bottom surface s3 of the second groove 212, and the heating outer side surface s6 of the heating element 22 is attached to the peripheral surface s4 of the second groove 212, and the heating element 22 is connected to the heat conduction
  • the heat conduction area for bonding between the covers 21 can be greatly increased, which can reduce thermal resistance, improve heat transfer efficiency, and reduce power loss.
  • the side wall of the second groove 212 is spaced from the pump body 1, and the second groove 212 is filled with flowable liquid on the outside, and the pump body 1 is heated
  • the possibility of excessively high is greatly reduced, and the service life of the heat pump 100 can be prolonged.
  • the thermally conductive cover 21 is a metal cover, so that the thermally conductive cover 21 has good thermal conductivity, stable thermal conductivity, long service life, and high connection reliability at the end of the pump body 1.
  • all the surfaces of the heating element 22 facing the peripheral surface s4 of the second groove 212 are attached to the peripheral surface s4 of the second groove 212, or the part of the heating element 22 facing the second groove 212
  • the surface of the peripheral surface s4 is in contact with the peripheral surface s4 of the second groove 212.
  • the surface of the heating element 22 facing the circumferential surface s4 of the second groove 212 is also provided with a concave-convex structure, and the circumferential surface s4 of the second groove 212 also forms a shape that fits the aforementioned concave-convex structure, thereby The contact area can be further increased.
  • the heating outer side surface s6 is formed as a surface that gradually expands in a direction from the second end 1B of the pump body 1 toward the first end 1A. With this arrangement, the closer the heating outer side surface s6 is to the first end 1A of the pump body 1, the longer its circumference, which can further increase the contact area with the heat conducting cover 21.
  • the angle a between the tangent line of any point on the heating outer surface s6 and the heating bottom surface s5 is greater than 90 degrees.
  • the bonding heat conduction area of the heating element 22 and the heat conduction cover 21 is further improved compared with the conventional technology, and some can even be increased by more than 30%.
  • the included angle between the circumferential surface s4 and the bottom surface s3 of the second groove 212 is also equal to a, and the angle a is greater than 90 degrees.
  • the angle between the circumferential surface s4 of the second groove 212 and the bottom surface s3 of the second groove 212 is greater than 90 degrees, and is in the direction from the second end 1B of the pump body 1 to the first end 1A , The circumference of the peripheral surface s4 of the second groove 212 gradually increases.
  • the heating outer side surface s6 is formed as a circular mesa with a gradually increasing diameter in the direction from the second end 1B to the first end 1A of the pump body 1, and the circular mesa is integrally attached to the peripheral surface s4 of the second groove 212 Connected thermally. In this way, not only the bonding contact area between the heating outer surface s6 and the heat conducting cover 21 is larger, but the shape of the heating element 22 is also easy to manufacture and process.
  • the bottom wall of the second groove 212 is provided with an outlet 215, and the heating element 22 has an annular shape around the outlet 215.
  • the liquid flows in from the second end 1B of the pump body 1 and flows from the first end 1B of the pump body 1.
  • the end 1A flows out.
  • the outlet 215 may also be provided at the second end 1B of the pump body 1.
  • an inner flange 214 is provided along the outlet 215 of the heat conducting cover 21.
  • the inner peripheral surface of the heating element 22 is a heating inner surface s7.
  • the angle b between any point on the heating inner surface s7 and the heating bottom surface s5 is greater than or equal to 90 degrees.
  • the heating inner side surface s7 of the heating element 22 is a straight cylindrical surface, or in the direction from the second end 1B to the first end 1A of the pump body 1, the heating inner side surface s7 is formed as a circular mesa with a gradually increasing diameter.
  • the included angle a between the heating outer side surface s6 and the heating bottom surface s5 is greater than the included angle b between the heating inner side surface s7 and the heating bottom surface s5.
  • the heating outer surface s6 has a large inclination, which can ensure a larger contact surface with the heat conducting cover 21, and at the same time, the heating inner surface s7 has a smaller inclination, so that the heating element 22 has a more solid structure.
  • the included angle a between the heating outer surface s6 and the heating bottom surface s5 of the heating element 22 > the included angle b between the heating inner surface s7 and the heating bottom surface s5.
  • the radial length of the heating bottom surface s5 of the heating element 22 is smaller than the radial length of the opposite side surface of the heating element 22, and a>b ⁇ 90°.
  • the cross-sectional shape of the heating element 22 perpendicular to the axis of the heat pump 100 is quadrilateral, so that not only the heating element 22 is easy to process, but it is also easier to assemble other parts on the pump cover assembly 2.
  • the cross-sectional shape of the heating element 22 perpendicular to the axis of the heat pump 100 is a right-angled trapezoid.
  • the second groove 212 has an annular shape concentrically with the outlet 215, and the radial width of the bottom surface s3 of the second groove 212 is at least 1.5 times the radial width of the heating bottom surface s5.
  • the radial width of the bottom surface s3 is the difference between the outer diameter and the inner diameter of the bottom surface s3 of the second groove 212
  • the radial width of the heating bottom surface s5 is the difference between the outer diameter and the inner diameter of the heating bottom surface s5.
  • the pump body 1 is provided with a sealing groove 11 on the end surface of the first end 1A
  • the pump cover assembly 2 includes a sealing ring 24 arranged in the sealing groove 11, and the first The depth (ie, the axial dimension) of a groove 211 is greater than the depth of the sealing groove 11. In this way, the support of the pump body 1 to the side wall of the first groove 211 can be improved, and the sealing performance can also be improved.
  • the peripheral wall of the pump body 1 is provided with a flange 12 protruding in a direction away from the axis of the heat pump 100 at the end of the first end 1A, and the side wall of the first groove 211 is located at the flange 12.
  • a sealing groove 11 is defined between the folded edge 12 and the side wall of the first groove 211 on the inner side of the hole.
  • the outer edge of the heat-conducting cover 21 is formed with an outer flange 213 that wraps the fold 12 to ensure that the heat-conducting cover 21 can be tightly buckled on the pump body 1.
  • the axial distance e from the bottom surface s2 of the first groove 211 to the top surface s10 of the thermally conductive cover 21 is greater than the bottom surface s1 of the sealing groove 11
  • the heating outer side surface s6 of the second groove 212 of the heat conducting cover 21 is set such that the maximum outer diameter c of the heating outer side surface s6 is smaller than the inner diameter d of the pump body 1.
  • the heating cavity V is disk-shaped, and the diameter of the heating cavity V exceeds the maximum radial width of the second groove 212 by at least 3 mm; the maximum radial width of the second groove 212 is the second groove 212 is the largest dimension in the direction perpendicular to the axis of the heating chamber V.
  • the pump cover assembly 2 further includes a heat conductor 23 which is arranged between the heating element 22 and the outlet 215. Specifically, the heat conductor 23 is provided between the heating element 22 and the inner flange 214.
  • the thermal conductor 23 has a thermally conductive bottom surface s8 that is thermally connected to the bottom surface s3 of the second groove 212, and the thermal conductor 23 has a thermally conductive outer surface that is thermally connected to the inner peripheral surface of the heating element 22 (ie, the heating inner surface s7). Side s9. With this arrangement, the heat of the heating inner surface s7 of the heating element 22 can also be transferred to the liquid in the heating cavity V through the heat conductor 23 and then through the heat conduction cover 21, and the heat transfer area between the heating element 22 and the liquid is further enlarged.
  • the heating element 22 has three sides of heat that can be transferred to the liquid in the heating chamber V, while the traditional design of the heating element 22 only has two sides of heat that can be transferred to the liquid in the heating chamber V.
  • the bottom surface s3 of the second groove 212 of the heat conduction cover 21 is designed to be flat, and the radial length of the bottom surface of the heat conduction cover 21 is at least It is 1.5 times the radial length of the heating bottom surface s5 of the heating element 22, or the radial width of the bottom surface s3 of the second groove 212 is at least 1.5 times the radial width of the heating bottom surface s5 to ensure the heat conduction of the heat conductor 23
  • the bottom surface s8 has a sufficient radial length to ensure that the heat received from the heating element 22 by the heat conductor 23 can be quickly transferred to the heat conducting cover 21 and then to the heated liquid.
  • the heating efficiency of the heat pump 100 with the above-mentioned characteristics is significantly improved compared with the conventional technology, and the surface temperature of the heating element 22 and the surface temperature of the joint between the heat conducting cover 21 and the pump body 1 are significantly reduced.
  • the heat conductor 23 is a metal heat conductor, so that the heat conductor 23 has strong impact resistance, does not become brittle after long-term use, and has a long service life.
  • the thermal conductor 23 may also be thermally conductive ceramics.
  • the heat conductor 23 is an aluminum part or an aluminum alloy part, so that the heat conductor 23 has a high thermal conductivity and a low cost.
  • the heat conductor 23 is sheet-shaped, and the heat conductor 23 is formed by stamping and forming aluminum or aluminum alloy plates, and the processing cost of the heat conductor 23 is low.
  • the heat conductor 23 is a heat sink, and the thickness of the heat sink is not less than 1 mm. This ensures that the heat conductor 23 has sufficient strength, and the thickness of the heat conductor 23 can reduce heat loss on the air side.
  • the heat conductor 23 has a circular ring shape, and the cross-sectional shape of the heat conductor 23 across the axis is L-shaped.
  • the household appliance according to the present application includes the heat pump 100 according to the above-mentioned embodiment of the present application.
  • the household appliance can be a washing appliance, such as a dishwasher or a washing machine, etc.
  • the household appliance provided with the heat pump 100 can also be other appliances, and it is not limited here.
  • the heating efficiency can be significantly improved, and the service life can be extended.
  • the description with reference to the terms “embodiment”, “example”, etc. means that the specific feature, structure, material or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application .
  • the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example.
  • the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Cookers (AREA)

Abstract

L'invention concerne une pompe à chaleur (100) et un appareil ménager la comprenant. La pompe à chaleur (100) comprend un corps de pompe (1) et un ensemble couvercle de pompe (2). Une cavité de réception de chauffage (V) est définie à l'intérieur du corps de pompe (1). L'ensemble couvercle de pompe (2) comprend un premier couvercle thermo-conducteur (21) et un élément chauffant (22). Le couvercle thermo-conducteur (21) est ajusté à une première extrémité (1A) du corps de pompe (1). Une partie du couvercle thermo-conducteur (21) est en retrait vers une seconde extrémité (1B) du corps de pompe (1) pour former un premier évidement (211). Une partie d'une paroi inférieure du premier évidement (211) est en retrait vers la seconde extrémité (1B) du corps de pompe (1) pour former un second évidement (212). Une paroi latérale du second évidement (212) est espacée d'une paroi périphérique du corps de pompe (1). L'élément chauffant (22) est placé dans le second évidement (212). L'élément chauffant (22) présente une surface inférieure chauffante (s5) reliée à une surface inférieure (s3) du second évidement (212) de manière conforme et thermo-conductrice. L'élément chauffant (22) présente une surface latérale externe chauffante (s6) reliée à une surface périphérique (s4) du second évidement (212) de manière conforme et thermo-conductrice.
PCT/CN2020/104894 2019-07-29 2020-07-27 Pompe à chaleur et appareil ménager la comprenant WO2021018094A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910688680.3A CN112294219B (zh) 2019-07-29 2019-07-29 加热泵及具有其的家用电器
CN201910688680.3 2019-07-29

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WO2021018094A1 true WO2021018094A1 (fr) 2021-02-04

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CN116696833B (zh) * 2022-03-16 2024-03-19 贝克电热科技（深圳）有限公司 一种刀片加热式的加热泵盖及加热泵
CN114738321B (zh) * 2022-04-07 2022-11-22 贝克电热科技（深圳）有限公司 一种刀片式加热泵盖及加热泵

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