WO2023019695A1 - 加热泵的加热组件及加热泵、洗涤电器 - Google Patents

加热泵的加热组件及加热泵、洗涤电器 Download PDF

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Publication number
WO2023019695A1
WO2023019695A1 PCT/CN2021/121415 CN2021121415W WO2023019695A1 WO 2023019695 A1 WO2023019695 A1 WO 2023019695A1 CN 2021121415 W CN2021121415 W CN 2021121415W WO 2023019695 A1 WO2023019695 A1 WO 2023019695A1
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WO
WIPO (PCT)
Prior art keywords
heating
pump
pump cover
temperature
heat
Prior art date
Application number
PCT/CN2021/121415
Other languages
English (en)
French (fr)
Inventor
赵运生
郭丙春
王松
Original Assignee
广东威灵电机制造有限公司
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
Priority claimed from CN202110955873.8A external-priority patent/CN113576365A/zh
Priority claimed from CN202121963979.4U external-priority patent/CN215687629U/zh
Priority claimed from CN202110956378.9A external-priority patent/CN113499011A/zh
Priority claimed from CN202121960358.0U external-priority patent/CN215687628U/zh
Application filed by 广东威灵电机制造有限公司 filed Critical 广东威灵电机制造有限公司
Publication of WO2023019695A1 publication Critical patent/WO2023019695A1/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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal 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

  • the present disclosure relates to the technical field related to household appliances, in particular to a heating assembly of a heat pump, a heat pump, and a washing appliance.
  • the heat pump is used to heat the fluid and is used in washing equipment such as dishwashers. From the perspective of safety, the heat pump must ensure that the liquid during the heating process cannot be overheated and boiled to avoid problems such as high temperature, high pressure, and dry burning in the heating chamber.
  • a temperature protector is added to the heat pump for heating protection.
  • the temperature protector is installed on the outside of the pump casing, and the water temperature is sensed by the heat conduction temperature of the pump casing.
  • the accuracy of temperature sensing is not good. High, and there is a problem of heat loss in the pump casing, and the temperature control accuracy is low.
  • the present disclosure aims at at least partially solving one of the technical problems existing in the prior art. For this reason, the present disclosure proposes a heating assembly suitable for a heat pump, which does not need to use a pump casing for heat conduction, can improve the accuracy of temperature sensing, and reduces problems such as high temperature, high pressure, and dry burning in the heating chamber.
  • the present disclosure also provides a heat pump and a washing appliance applying the above-mentioned heating assembly.
  • a heating assembly according to an embodiment of the first aspect of the present disclosure, comprising:
  • a pump cover the pump cover is used to cover the heating cavity of the heat pump, the side of the pump cover facing the heating cavity is the inner side, and the side away from the heating cavity is the outer side, the pump cover A through hole communicating with the heating chamber is opened;
  • the heater is connected to the pump cover and is at least partially located in the heating chamber;
  • the heat conduction element covers the through hole
  • a temperature protector the temperature protector is arranged on the outer surface and is electrically connected to the heater, and the temperature-sensing surface of the temperature protector is bonded to the heat-conducting member.
  • the heater and the temperature protector on the pump cover.
  • the heat conduction part plays the role of transferring heat.
  • the temperature sensing surface of the temperature protector can quickly The temperature change in the induction heating chamber can significantly improve the sensitivity of temperature sensing, thereby improving the accuracy of temperature control, which is conducive to reducing the temperature fluctuation in the liquid heating process, and greatly reducing the occurrence of high temperature, high pressure, dry burning, etc. in the heating chamber.
  • the heat conduction member is provided with a recess matching the through hole, the temperature protector is disposed in the recess, the bottom surface of the recess is a heat conduction surface and is in contact with the temperature sensing surface. combine.
  • the side of the recess is provided with a flange extending in the circumferential direction, the diameter of the flange is larger than the diameter of the through hole, and the flange is in contact with the outer surface or connect.
  • the outer peripheral wall of the temperature protector located on the temperature sensing surface is attached to the inner peripheral wall of the recess.
  • a seal is provided between the heat conducting member and the pump cover, and the seal is located between the recess and the inner peripheral wall of the through hole.
  • the heat conducting element is connected with the temperature protector to form an integrated structure.
  • the heat conduction element is made of metal heat conduction material.
  • the pump cover is made of non-metallic material
  • the pump cover is an integrally formed plastic part.
  • it also includes:
  • a fixing piece is connected with the pump cover, and is used for fixing the temperature protector.
  • the fixing part is provided with a first elastic part for pressing the temperature protector and a second elastic part for pressing the heat conducting part.
  • the fixing part and the concave part are surrounded to form an accommodating cavity matching the temperature protector, and the fixing part is provided with a first elastic part that presses against the temperature protector in a direction perpendicular to the temperature-sensing surface .
  • the outer surface of the pump cover is provided with a reinforcement ring around the through hole, the upper end surface of the reinforcement ring is attached to the heat conducting member, and the fixing member is provided with a pressure The second elastic part of the heat conducting element.
  • the fixing part is provided with a first connecting part
  • the outer side of the pump cover is provided with a second connecting part
  • the first connecting part is connected with the second connecting part, so that the The fixing piece is connected to the pump cover.
  • the heating assembly further includes a first terminal and a second terminal, wherein the first terminal and the second terminal are fixed to the pump cover, and the temperature protector is provided with The first pin and the second pin, the first terminal is electrically connected to the first pin through a first hard wire, and the second terminal is connected to the second lead through a second hard wire
  • the feet are electrically connected, and the outer surface of the pump cover is provided with a first wire fixing part for fixing the first hard wire and a second wire fixing part for fixing the second hard wire.
  • the first wire fixing part is provided with a first clamping groove
  • the first hard wire is provided with a first bending part
  • the bottom wall of the first clamping groove supports at least part of the The first bending part
  • the second wire fixing part is provided with a second card slot
  • the second hard wire is provided with a second bending part
  • the bottom wall of the second card slot supports at least part of the the second bending portion.
  • a connector is provided on the outer surface of the pump cover, the connector is provided with a third pin and a fourth pin, and the third pin is connected to the first pin , the fourth pin is connected to the first rigid wire, so that the connector is connected in series between the temperature protector and the first rigid wire.
  • the heater is a heating tube
  • a boss is provided on the outer surface of the pump cover, and both ends of the heating tube extend along the inner side of the heating chamber to the top of the boss,
  • the boss is provided with openings corresponding to the first terminal and the second terminal, and the first terminal and the second terminal extend to the outside of the pump cover along the opening.
  • the pump cover is provided with a water inlet communicating with the heating chamber.
  • a pump casing the pump casing is connected with the pump cover to define the heating chamber, and the pump casing is provided with a water outlet communicating with the heating chamber.
  • the heat pump further includes:
  • the impeller assembly is arranged in the heating chamber and connected with the motor.
  • the heating pump adopts the heating assembly of the above-mentioned embodiment without relying on the pump cover for heat conduction, which can significantly improve the sensitivity of the temperature sensor of the temperature protector, thereby improving the accuracy of temperature control, which is conducive to reducing the temperature fluctuation of the liquid heating process and effectively solving the heating problem.
  • Problems such as high temperature, high pressure, and dry burning in the cavity prolong the service life of the heat pump; and the pump cover made of non-metallic materials can reduce heat loss, reduce production costs, and further improve insulation performance, which is conducive to improving the heat pump. safety.
  • the electric washing machine according to the embodiment of the third aspect of the present disclosure includes the heat pump described in the embodiment of the second aspect above.
  • the electric washing machine adopts all the technical solutions of the heat pump of the above-mentioned embodiments, and thus at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments.
  • FIG. 1 is a schematic structural view of a heating assembly according to an embodiment of the present disclosure
  • FIG. 2 is a schematic top view of a heating assembly according to an embodiment of the present disclosure
  • Fig. 3 is a schematic cross-sectional structure diagram of A-A direction in Fig. 2;
  • Fig. 4 is a schematic diagram of an enlarged structure at B in Fig. 3;
  • Fig. 5 is a partial cross-sectional structural schematic diagram of a pump cover according to an embodiment of the present disclosure
  • Fig. 6 is a schematic diagram of an enlarged structure at C in Fig. 5;
  • Fig. 7 is a schematic diagram of the inner structure of the concave part of the heat conducting element according to an embodiment of the present disclosure
  • Fig. 8 is a schematic diagram of the outside structure of the concave part of the heat conducting element according to an embodiment of the present disclosure
  • Fig. 9 is a schematic diagram of the upper surface structure of a temperature protector according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of the bottom surface structure of a temperature protector according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic structural diagram of a temperature protector according to another embodiment of the present disclosure.
  • Fig. 12 is a schematic structural diagram of a fixing member according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic cross-sectional view of an assembly structure of a heat-conducting member according to another embodiment of the present disclosure.
  • FIG. 14 is a schematic cross-sectional structure diagram of a heat pump according to an embodiment of the present disclosure.
  • Fig. 15 is a schematic structural view of a pump cover according to an embodiment of the present disclosure.
  • Pump cover 100 water inlet 110; water inlet channel 111; boss 120; opening 121; through hole 130; fourth cylindrical surface 131; reinforcement ring 140; third end surface 141; annular groove 150; Five cylinders 152; second connecting part 160; card slot 161; first line fixing part 170; first card slot 171; second line fixing part 180; second card slot 181;
  • Temperature protector 300 temperature sensing surface 310; third cylinder 320; first pin 330; second pin 340;
  • pump casing 800 motor 810; impeller assembly 820; outlet pipe 830;
  • orientation descriptions such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the present disclosure.
  • the heating assembly is suitable for the heat pump 2000 .
  • the heating assembly will be described below with a specific example.
  • the heating assembly of the embodiment of the present disclosure includes a pump cover 100 and a heater.
  • the pump cover 100 is the cover plate of the heating chamber of the heat pump 2000.
  • the pump casing 800 cooperates to define a heating chamber.
  • the pump cover 100 can also be understood as the upper casing of the heat pump 2000.
  • the heater is installed on the inner side of the upper casing so that the heater can be located in the heating chamber. As shown in Figure 1, the lower side of the pump cover 100 is the inner side, the upper side is the outer side, and the inner side forms the inner wall of the heating chamber.
  • the pump cover 100 is provided with a water inlet 110, and water enters the heating chamber through the water inlet 110. The heater heats the water in the heating chamber to generate hot water.
  • a temperature protector 300 is provided on the outer surface of the pump cover 100, and a heat conduction member 500 is provided at the position of the through hole 130, wherein the heat conduction member 500 is roughly in the form of a plate structure, which has better heat conduction Performance, one side of the heat conduction element 500 faces the inside of the heating chamber, the other side of the heat conduction element 500 faces the outside of the heating chamber, and the temperature sensing surface 310 of the temperature protector 300 is attached to the side of the heat conduction element 500 facing the outside of the heating chamber.
  • the heat conduction element 500 covers the through hole 130, the heat conduction element 500 constitutes a part of the side wall of the heating chamber, and the heat in the heating chamber can be directly transferred to the heat conduction element 500, so that the temperature sensed by the temperature sensing surface 310 of the temperature protector 300 The temperature is closer to the temperature of the water in the heating chamber.
  • the embodiment of the present disclosure does not need to rely on the pump cover 100 for heat conduction, and the temperature protector 300 can quickly sense the temperature change in the heating chamber through the heat conduction member 500, and the heat conduction member 500 can The influence of factors such as the thickness of the pump cover 100 and thermal conductivity is greatly reduced, the heat transfer effect is better, and the sensitivity of temperature sensing of the temperature protector 300 can be significantly improved, thereby improving the accuracy of temperature control.
  • the heater of the embodiment is used as a heating tube 200
  • the heating tube 200 in the embodiment has two terminals, including a first terminal 210 and a second terminal 220 , both the first terminal 210 and the second terminal 220 pass through the pump cover 100 and are connected in series with the temperature protector 300 .
  • the upper surface of the pump cover 100 is provided with a boss 120 for fixing the heating tube 200
  • the boss 120 protrudes from the outer surface of the pump cover 100 .
  • the heating pipe 200 includes an annular pipe section and a straight pipe section, wherein the annular pipe section is arranged around the heating chamber.
  • Both ends of the heating pipe 200 extend along the height direction of the boss 120 to form a straight pipe section.
  • the top of the boss 120 is provided with an opening 121, the first The terminal 210 and the second terminal 220 pass through the opening 121 and are fixed on the top position of the boss 120.
  • the first terminal 210 and the second terminal 220 are respectively electrically connected to the temperature protector 300 through wires, so that the heating The tube 200 is connected with the pump cover 100 to form an integral structure, and the details will not be repeated here.
  • the temperature protector 300 of the embodiment has a temperature-sensing surface 310, and the temperature-sensing surface 310 uses a bimetallic strip as a temperature-sensing element, and the bimetallic strip can move according to temperature changes, and can be opened or closed by the bimetallic strip
  • the energization of the circuit plays a role in temperature control.
  • the temperature protector 300 is connected in series in the power supply circuit of the heating tube 200, and the temperature protector 300 can control the power supply of the heating tube 200 according to the temperature induced by the temperature sensing surface 310, so as to reduce the occurrence of high temperature, high pressure and dry burning in the heating chamber. And so on, it is beneficial to prolong the service life of the heat pump 2000.
  • the temperature protector 300 when the heating tube 200 heats the water in the heating chamber, the temperature protector 300 is in the energized state; when the water temperature is too high and exceeds the set temperature, the bimetal strip on the temperature sensing surface 310 will move, causing the circuit to be disconnected. Turn on the electricity, and the heating tube 200 stops heating, thereby avoiding the safety problem caused by excessive water temperature. It should be noted that when the water temperature drops below the set temperature, the temperature protector 300 will resume power supply, and then restore the normal heating state of the heating tube 200 to achieve the purpose of temperature control, with stable performance, high precision and high reliability. , Long life and so on.
  • the heating temperature of the liquid in the heating chamber cannot be overheated and boiled, that is, it should not exceed 100°C.
  • the temperature threshold is set according to the actual use requirements of the product, which is not limited here.
  • the water temperature is usually set not to exceed 85°C, which can not only meet the use requirements, but also reduce the risks of high temperature, high pressure, and dry burning in the heating chamber. That is to say, the change of water temperature is sensed in real time by the temperature protector 300 and the heat conduction element 500.
  • the temperature protector 300 When the water temperature is lower than 85°C, the temperature protector 300 is in a conduction state, and the heating pipe 200 is heated normally; when the water temperature is higher than 85°C, The temperature protector 300 cuts off the energization of the power supply circuit, so that the heating pipe 200 stops heating, thereby reducing the water temperature to below 85°C, which plays an effective temperature protection role, reduces the temperature fluctuation in the water heating process, and prolongs the use of the heat pump 2000 Life, but also improve the safety of the dishwasher.
  • the size of the through hole 130 can be set according to the size of the temperature sensing surface 310 of the temperature protector 300 , which is not further limited in the embodiment.
  • the through hole 130 is located at the top of the pump cover 100, and the heat conducting member 500 covers the position of the through hole 130.
  • the through hole 130 can be blocked by the heat conducting member 500, which can prevent the liquid from leaking from the through hole 130 to the outside of the heating chamber.
  • the temperature sensing surface 310 also It is convenient to be positioned with the heat conduction element 500 , so that the temperature sensing surface 310 and the heat conduction element 500 are closely bonded to reduce heat loss, and the structure is simple and reliable.
  • the temperature sensing surface 310 of the temperature protector 300 does not need to transfer heat through the pump cover 100 itself.
  • the pump cover 100 is made of non-metallic materials.
  • the pump cover 100 can be made of plastic, ceramics and other materials. , compared with the shell of metal material, on the one hand, it can reduce the thermal conductivity of the pump cover 100 and reduce the heat loss in the heating chamber, which is beneficial to reduce the production cost; on the other hand, the use of non-metallic materials can further improve the insulation performance of the pump cover 100 , because the heating pipe 200 is connected to the pump cover 100 , it can effectively insulate the heating pipe 200 and reduce risks such as electric leakage, thereby improving the safety of the heat pump 2000 .
  • the surface of the heat conducting member 500 is recessed downward along the axial direction of the through hole 130 to form a recess 510, the recess 510 matches the through hole 130, and the heat conducting member 500 covers the through hole 130.
  • the concave portion 510 extends into the through hole 130 , so that the heat conducting element 500 is closely matched with the through hole 130 .
  • One end of the temperature protector 300 with the temperature-sensing surface 310 is inserted into the recess 510 , so that the temperature-sensing surface 310 can be attached to the bottom surface of the recess 510 .
  • the bottom surface of the concave portion 510 is a heat-conducting surface, wherein the side of the bottom surface of the concave portion 510 facing the heating chamber is the first heat-conducting surface 511, and the side where the bottom surface of the concave portion 510 is bonded to the temperature-sensing surface 310 is the second heat-conducting surface 512, the heat of the heating chamber can be transferred to the temperature-sensing surface 310 through the first heat-conducting surface 511 and the second heat-conducting surface 512 in sequence, so that the temperature-sensing surface 310 can quickly sense the temperature change in the heating chamber.
  • the concave portion 510 extends downward from the upper end of the through hole 130 along the axial direction of the through hole 130 , so that the concave portion 510 has a certain height in the axial direction of the through hole 130 .
  • the lower end of the device 300 is inserted into the recess 510, which can not only position the temperature protector 300 and the heat conduction element 500, but also position the heat conduction element 500 and the through hole 130, and then position the temperature sensing surface 310 and the second heat conduction surface 512. It is more accurate, the fit is tighter, and it is also convenient to quickly install the temperature protector 300, and the structure is more stable and reliable.
  • the recess 510 is approximately a circular groove structure, the outer periphery of the upper end of the recess 510 is provided with a flange 520 extending in the circumferential direction, and the flange 520 extends outwards so that the diameter of the flange 520 larger than the diameter of the through hole 130 , so that the recess 510 of the heat conducting member 500 can extend into the through hole 130 , and the flange 520 can be connected to the pump cover 100 .
  • the flange 520 extends outward from the upper port position of the recess 510, so that the flange 520 and the recess 510 can completely cover the through hole 130, along the axial direction of the through hole 130, through the flange 520 acts as a limit to the recess 510; along the radial direction of the through hole 130, the recess 510 acts as a limit to the flange 520, effectively improving the stability and reliability of the installation structure.
  • the recess 510 is connected with the flange 520 to form the heat conduction element 500.
  • the heat conduction element 500 is made of a metal heat conduction material, specifically a high heat conduction material, which can realize fast transmission
  • the heat for example, can be stainless steel, copper, aluminum alloys, and the like.
  • the heat conduction member 500 is formed by stamping a stainless steel plate, so that a recess 510 is formed on the stainless steel plate, and the edge of the recess 510 forms a flange 520, which means that the recess 510 and the flange 520 are integrally formed, which is more stable and reliable .
  • the thickness of the stainless steel plate can be set to be small enough. Compared with the thickness of the pump cover 100, the thickness of the heat conduction surface is thinner, which improves the heat conduction performance and greatly improves the temperature sensing performance of the temperature protector 300. sensitivity.
  • the temperature protector 300 is arranged on the outside of the pump cover 100, and the temperature sensing surface 310 conducts heat through the heat conduction member 500.
  • the pump cover 100 does not need to use metal materials, for example, the pump cover 100 is made of plastic.
  • the pump cover 100 is made by integral injection molding, which is easy to realize and lower in cost.
  • the heat conduction member 500 when the heat conduction member 500 is installed at the position of the through hole 130, the heat conduction member 500 can be connected to the pump cover 100 through the flange 520, for example, the flange 520 and the pump cover 100 can be It can be bonded or connected by connecting pieces such as screws, or the flange 520 can be overmolded in the pump cover 100, so as to form an integrated structure, simplify the installation structure, and be more stable and reliable.
  • the concave portion 510 is approximately cylindrical, the outer peripheral wall of the concave portion 510 is a first cylindrical surface 513 , and the inner peripheral wall of the concave portion 510 is a second cylindrical surface 514 .
  • the temperature sensing surface 310 is arranged on the lower end surface of the temperature protector 300, and the end near the lower end surface of the temperature protector 300 matches the recess 510, and the outer peripheral wall of this end is the third cylindrical surface 320 .
  • the third cylindrical surface 320 of the temperature protector 300 is in close contact with the second cylindrical surface 514 of the concave portion 510, so that the temperature protector 300 can be stably limited in the concave portion 510, so that the temperature sensing surface 310 is in contact with the second cylindrical surface 514.
  • the heat conduction surface 512 fits more tightly to improve the temperature sensitivity.
  • the first cylindrical surface 513 of the concave portion 510 is in close contact with the inner peripheral wall of the through hole 130 , so that the heat conduction element 500 is effectively limited, and the heat conduction element 500 cooperates with the through hole 130 more closely and reliably.
  • the flange 520 has a first end surface 521 and a second end surface 522 along the axial direction of the through hole 130 , wherein the first end surface 521 faces downward, and the second end surface 522 faces upward and is aligned with the port of the recess 510 flat, the first end surface 521 is transitionally connected to the first cylindrical surface 513 , and the second end surface 522 is transitionally connected to the second cylindrical surface 514 .
  • the first end surface 521 is in contact with the outer surface of the pump cover 100
  • the first cylindrical surface 513 is in contact with the inner peripheral wall of the through hole 130 , so that the heat conduction element 500 and the through hole 130 are closely matched.
  • the structures of the heat conducting element 500 and the temperature protector 300 are substantially the same as those of the embodiments shown in FIGS. One-piece structure. That is to say, the lower end of the temperature protector 300 is fixed in the recess 510 of the heat conducting element 500 , the temperature sensing surface 310 is kept in close contact with the bottom surface inside the recess 510 , and the flange 520 extends outward from the outer wall of the temperature protector 300 .
  • the lower end of the temperature protector 300 is inserted into the through hole 130, and the position is limited by the flange 520. There is no need to separately assemble the heat-conducting member 500, which simplifies the installation structure, and details will not be repeated here.
  • a sealing member is provided on the inner peripheral wall of the through hole 130 , and the sealing member is arranged around the outer peripheral wall of the concave portion 510 to effectively improve the sealing between the heat conducting member 500 and the through hole 130 .
  • the seal in the embodiment shown in Figure 4 is an O-ring 600 made of rubber, and the inner peripheral wall of the through hole 130 is provided with an annular groove 150 matching the O-ring 600, and the O-ring 600 is arranged in the annular groove 150 Inside.
  • the annular groove 150 is provided on the inner peripheral wall at the upper end of the through hole 130.
  • the O-ring 600 is pressed by the flange 520 and the recess 510, and the O-ring 600 is respectively connected to the first end surface 521. It is in close contact with the first cylindrical surface 513. Since the first cylindrical surface 513 is in close contact with the inner peripheral wall of the through hole 130 , the tightness between the first cylindrical surface 513 and the inner peripheral wall of the through hole 130 is effectively improved through the bonding of the O-ring 600 and the first cylindrical surface 513 .
  • the sealing between the first end surface 521 and the outer surface of the pump cover 100 is further improved through the bonding of the first end surface 521 and the O-ring 600, thereby effectively preventing the liquid in the heating chamber from leaking at the position of the through hole 130, High reliability.
  • the seal is not limited to the O-ring 600 shown in the above embodiment, and other forms of sealing structures can also be used, for example, the O-ring 600 is replaced by sealant, and the sealant is filled in the first column of the recess 510 between the surface 513 and the inner peripheral wall of the through hole 130 , and between the first end surface 521 and the outer surface.
  • the first cylindrical surface 513 is connected to the inner peripheral wall of the through hole 130 by thread, and a sealing material is added between the first cylindrical surface 513 and the inner peripheral wall of the through hole 130 to achieve a sealing effect.
  • the heat conducting member 500 and the pump cover 100 has high sealing performance.
  • the flange 520 and the pump cover 100 can be integrally connected by overmolding. After overmolding, the flange 520 is embedded in the pump cover 100 to conduct heat.
  • the member 500 can not only conduct heat, but also can effectively seal the through hole 130 , so that no sealing member is needed for sealing, further simplifying the installation structure.
  • a reinforcement ring 140 is provided on the outer surface of the pump cover 100 close to the through hole 130.
  • the reinforcement ring 140 protrudes upwards from the outer surface and is arranged around the through hole 130.
  • the height of the hole 130 improves the strength of the pump cover 100 at the position of the through hole 130 and ensures the stability and reliability of the installation structure of the temperature protector 300 and the heat conducting member 500 .
  • the annular groove 150 is arranged on the inner side wall of the upper end of the reinforcing ring 140, and the upper end surface is recessed axially downward to form the annular groove 150, wherein the end surface of the upper end of the reinforcing ring 140 is the third end surface 141, and the bottom surface of the annular groove 150 is the fourth end surface 151, the inner peripheral wall of the through hole 130 is the fourth cylindrical surface 131, the inner peripheral wall of the annular groove 150 is the fifth cylindrical surface 152, the third end surface 141 is transitionally connected with the fifth cylindrical surface 152, and the fourth end surface 151 is connected with the fifth cylindrical surface 152.
  • the fourth cylindrical surface 131 is transitionally connected.
  • the O-ring 600 is installed in the annular groove 150 , the heat conducting element 500 covers the through hole 130 , and the temperature protector 300 is arranged on the heat conducting element 500 .
  • the first cylindrical surface 513 of the recess 510 is in close contact with the O-ring 600 , and the O-ring 600 is squeezed to be in close contact with the fourth end surface 151 and the fifth cylindrical surface 152 , the first end surface 521 of the flange 520 is in close contact with the third end surface 141 and the O-ring 600 , thereby forming an effective sealing structure with a better sealing effect.
  • a fixing piece 400 is provided on the outside of the pump cover 100.
  • the fixing piece 400 is used to fix the temperature protector 300 on the pump cover 100.
  • the fixing piece 400 is provided with a matching temperature protector 300.
  • the accommodating chamber 410 is provided with a first connecting portion 420 on the fixing member 400, and a second connecting portion 160 corresponding to the first connecting portion 420 is provided on the pump cover 100, and the first connecting portion 420 cooperates with the second connecting portion 160.
  • the fixing piece 400 can be connected to the outer surface of the pump cover 100, and the temperature protector 300 is limited in the accommodation cavity 410 by the fixing piece 400, so that after being assembled in place, the fixing piece 400 and the heat conduction piece 500 are respectively temperature
  • the upper and lower ends of the protector 300 are limited, so that the temperature protector 300 is fixed between the fixing member 400 and the heat conducting member 500 , and the purpose of fixing the temperature protector 300 is achieved.
  • the fixing part 400 is an integral injection-molded plastic part, and first connecting parts 420 are respectively provided on both sides of the fixing part 400 .
  • first elastic part 430 is an elastic protrusion integrally formed with the fixing part 400, the temperature protector 300 can be pressed against the heat conducting part 500 through the first elastic part 430, so that the temperature sensing surface 310 and the The heat-conducting surface is in closer contact, ensuring that the temperature-sensing surface 310 has a higher temperature-sensitivity.
  • a second elastic portion 440 is further provided on the fixing member 400 .
  • the second elastic portion 440 is located outside the receiving chamber 410 .
  • the second elastic portion 440 is used to compress the heat conducting member 500 .
  • the lower end of the temperature protector 300 is positioned in the recess 510
  • the flange 520 is located outside the temperature protector 300
  • the fixing member 400 is covered above the temperature protector 300
  • the upper end of the temperature protector 300 is in contact with the accommodating cavity 410
  • the upper end of the temperature protector 300 is provided with a power connection pin, and the power connection pin 330 can extend out of the fixing member 400 to facilitate connection with the heating tube 200 . As shown in FIG.
  • two first elastic parts 430 and four second elastic parts 440 are provided on the fixing part 400, and the temperature protector 300 is pressed simultaneously by the two first elastic parts 430, which is beneficial to the temperature protector 300.
  • the force on the temperature surface 310 is balanced, so that the contact between the temperature sensing surface 310 and the heat conduction surface is more uniform, and the accuracy of temperature sensing is ensured.
  • the four second elastic parts 440 are distributed along the circumferential direction of the flange 520, so that the elastic force received by the flange 520 is more uniform, more stable and reliable.
  • the fixing member 400 While fixing the temperature protector 300, the second elastic part 440 presses the heat conduction element 500 to reduce the deviation of the heat conduction element 500 from the through hole 130 due to the pressure of the heating chamber, and the structural reliability is higher.
  • the number of the first elastic portion 430 and the second elastic portion 440 can be set according to actual usage requirements, and details are not repeated here.
  • the first connecting part 420 is provided with a buckle 421
  • the second connecting part 160 is provided with a slot 161
  • the buckle 421 is arranged on the side wall of the first connecting part 420
  • the second connecting part 160 is arranged at the position of the reinforcing ring 140, and the card slot 161 is opened on the side wall of the second connecting part 160.
  • connection method between the fixing part 400 and the pump cover 100 is not limited to the structure of the above-mentioned embodiments, for example, the fixing part 400 and the pump cover 100 can be connected by connecting parts such as screws and threads, or can be connected by bonding, passing through, etc.
  • the connection is carried out by means of interference fit, welding, etc., wherein the welding may be ultrasonic welding, hot-melt welding or other welding methods, which are not specifically limited.
  • the two power-connecting pins of the temperature protector 300 are the first pin 330 and the second pin 340 respectively, and the first pin 330 and the second pin 340 protrude from the fixing member 400 Outside, the first pin 330 is electrically connected to the first terminal 210 of the heating tube 200 , and the second pin 340 is electrically connected to the second terminal 220 of the heating tube 200 .
  • hard wires are used as the connecting wires of the circuit. Specifically, the first terminal 210 is connected to the first pin 330 through the first hard wire 230, and the second terminal 220 is connected to the first pin 330 through the second hard wire 240. It is connected with the second pin 340 so that the temperature protector 300 is connected in series with the heating pipe 200 .
  • first hard wire 230 and the second hard wire 240 are made of hard metal, such as stainless steel, which is not further limited here.
  • the first hard wire 230 and the second hard wire 240 have fixed shapes and high rigidity. When pressure is applied, the positions of the first hard wire 230 and the second hard wire 240 need to be kept stable.
  • the first wire fixing part 170 and the second wire fixing part 180 are provided on the outer surface of the upper pump casing 100, the first wire fixing part 170 is used to limit the position of the first hard wire 230, and the second wire fixing part 170 is used to limit the position of the first hard wire 230, and the second wire fixing part
  • the portion 180 defines the position of the second rigid wire 240, preventing the position of the first rigid wire 230 and the second rigid wire 240 from shifting, so that the first rigid wire 230 and the second rigid wire 240 are installed in place. Perform welding operations to improve welding efficiency.
  • both the first line fixing part 170 and the second line fixing part 180 adopt a column structure and protrude on the outer surface of the upper pump casing 100, and the first line fixing part 170 can support the first hard line.
  • Quality wire 230 there is a space between the first hard wire 230 and the upper pump casing 100, which can be used to apply clamping force when welding;
  • the second wire fixing part 180 can support the second hard wire 240, the second hard wire 240
  • the first wire fixing part 170 and the second wire fixing part 180 are distributed on both sides of the temperature protector 300 , and the first hard wire 230 and the second hard wire 240 do not interfere with each other, which is convenient for welding connection.
  • first wire fixing part 170 is provided with a first clamping groove 171, and a part of the first rigid wire 230 is clamped in the first clamping groove 171 to achieve the purpose of fixing the first rigid wire 230;
  • the wire fixing part 180 is provided with a second clamping slot 181 , and a part of the second rigid wire 240 is clamped in the second clamping slot 181 to achieve the purpose of fixing the second rigid wire 240 .
  • the opening of the first card slot 171 faces upwards.
  • the first clamping groove 171 limits the first hard wire 230 to the top of the first wire fixing part 170, and has sufficient support so that the position and height of the first hard wire 230 are fixed; similarly, the second clamping groove 181 The opening of the second hard wire 240 is facing upward.
  • the opening of the first clamping slot 171 can also be set on the side of the first wire fixing part 170, for example, the opening of the first clamping slot 171 faces the temperature protector 300, and the first hard wire 230 is partially clamped into the first
  • the slot 171 is convenient for fine-tuning the relative position between the first hard wire 230 and the temperature protector 300 .
  • the number of the first wire fixing part 170 and the second wire fixing part 180 is not limited to one, and a plurality of first wire fixing parts 170 and the second wire fixing part 180 can be set according to actual product requirements, so that the first hard wire 230 and the second wire fixing part 180 The second hard wire 240 is supported more reliably, and details are not repeated here.
  • the first hard wire 230 is bent to form a first bend 231, and the second hard wire 240 is bent to form a second bend 241, so that the first hard
  • the ends of the wire 230 and the second hard wire 240 turn to a horizontal direction, which is convenient for welding operation.
  • the first bending part 231 is clamped in the first clamping groove 171, and the first clamping groove 171 clamps the first bending part 231 through the side walls on both sides.
  • the bottom wall of the slot 171 can support the first bending portion 231 .
  • the bottom wall of the first card slot 171 supports a part of the first bending part 231, or that the bottom wall of the first card slot 171 provides multi-point support for the first bending part 231, or that the first card slot The bottom wall of 171 completely supports the first bent portion 231 .
  • the pump cover 100 is made of plastic
  • the first wire fixing part 170 and the second wire fixing part 180 are both made of plastic, and are integrally injection molded with the pump cover 100 .
  • the first wire fixing part 170 and the second wire fixing part 180 have a certain degree of plastic elasticity, so that the first hard wire 230 can be snapped into the first slot 171, and the second hard wire 240 can be snapped into the second slot 181 , is not easy to loosen, and effectively fixes the first hard wire 230 and the second hard wire 240 .
  • a limit structure can also be provided on the first wire fixing part 170 and the second wire fixing part 180, which are respectively used to further limit the first hard wire 230 and the second hard wire 240, so as to improve the stability of the assembly structure. sex, which will not be repeated here.
  • a connector 700 is also installed on the pump cover 100, and the connector 700 is connected in series with the heating pipe 200 and the temperature protector 300, and the connector 700 is used to connect the circuit of the dishwasher. Provide power to the heating tube 200 .
  • Both sides of the connector 700 are provided with a third pin 710 and a fourth pin 720, wherein the third pin 710 is welded to the first pin 330 of the temperature protector 300, and the fourth pin 720 is welded to the first hard
  • the wire 230 is welded, and the second pin 340 of the temperature protector 300 is welded to the second hard wire 240 .
  • the first hard wire 230 and the second hard wire 240 are welded by resistance welding, and resistance welding uses resistance heat as the energy source, including slag resistance heat as the energy source.
  • Resistance welding can make the workpiece under a certain electrode pressure, and use the resistance heat generated when the current passes through the workpiece to melt the contact surface between the two workpieces to realize the welding method of connection.
  • the welding structure is stable and reliable, and the electrical conductivity is good.
  • the heat pump 2000 of the embodiment of the present disclosure is described with reference to FIG. 14 , and the heating assembly is described below with a specific example.
  • a motor 810 and an impeller assembly 820 are arranged in the pump casing 800, the motor 810 is fixedly installed in the pump casing 800, the impeller assembly 820 is located in the heating chamber, and the drive shaft of the motor 810 extends into the heating chamber and is connected with the impeller assembly 820, and the motor 810 can drive the impeller assembly 820 to rotate.
  • the pump cover 100 is provided with a water inlet channel 111 communicating with the water inlet 110, and the water inlet channel 111 corresponds to the position of the impeller assembly 820, so that the water flow enters from the water inlet 110 and passes through the water inlet channel 111 to reach the impeller assembly 820.
  • the water inlet channel 111 is located in the middle of the pump cover 100 , the heating chamber is arranged around the water inlet channel 111 , and the heater is a heating tube 200 distributed in the heating chamber in a ring shape.
  • a water inlet pipe 190 can be arranged on the outside of the pump cover 100, and the water inlet pipe 190 communicates with the water inlet 110. Communication, through the water inlet pipe 190 and the water outlet pipe 830 can facilitate the connection of the heat pump 1000 with the water supply pipeline and the water spray pipeline of the dishwasher. It can be understood that sealing structures are provided between the water inlet pipe 190 and the upper pump casing 100 , between the water outlet pipe 830 and the lower pump casing 800 , and between the pump cover 100 and the pump casing 800 , so that the heat pump 1000 has reliable water resistance. I won't repeat them here.
  • the water flows into the upper pump casing 100 along the water inlet pipe 190 and the water inlet 110, and reaches the position of the impeller assembly 820 through the water inlet channel 111.
  • the impeller assembly 820 pumps the water into the heating chamber, so that the water rotates and flows in the heating chamber After being heated, it is discharged along the water outlet and the water outlet pipe 830, so as to achieve the purpose of heating water.
  • a through hole 130 is opened in the pump cover 100 , the water inlet 110 and the through hole 130 are both arranged on the top of the pump cover 100 , and the through hole 130 communicates with the heating chamber.
  • a temperature protector 300 is provided on the outer surface of the pump cover 100, and a heat conduction member 500 is provided at the position of the through hole 130.
  • the heat conduction member 500 covers the through hole 130, and the temperature protector 300 matches the installation through hole 130. Inside and corresponding to the position of the heat conducting element 500 , the heat in the heating chamber can be transferred to the temperature protector 300 through the heat conducting element 500 .
  • the heat conduction element 500 is roughly in the form of a plate structure, made of heat conduction material, and has better heat conduction performance, the lower side of the heat conduction element 500 faces the heating chamber, and the upper side of the heat conduction element 500 faces the outside of the pump cover 100
  • the temperature sensing surface 310 of the temperature protector 300 is attached to the upper side of the heat conducting element 500 . Since the through hole 130 communicates with the heating chamber, the heat conducting member 500 covers the through hole 130, and the heat conducting member 500 constitutes a part of the inner wall of the heating chamber.
  • the temperature sensed by the temperature-sensing surface 310 is closer to the temperature in the heating chamber, so that the temperature-sensing surface 310 can quickly sense the temperature change in the heating chamber, and the sensing effect is better.
  • the embodiment of the present invention can quickly transfer the heat in the heating chamber through the heat conduction member 500, without relying on the pump cover 100 or the pump shell 800 itself for heat conduction, so that the temperature protector The 300 can quickly sense the temperature change in the heating chamber through the heat conduction element 500, the temperature response efficiency is higher, and the influence of factors such as the thickness of the shell and thermal conductivity is greatly reduced, the heat transfer effect is better, and the temperature of the temperature protector 300 can be significantly increased.
  • the sensitivity of the induction is conducive to improving the accuracy of temperature control in the heating chamber.
  • the pump cover can be made of plastic
  • the heat conduction member 500 can be made of stainless steel
  • the heat conduction member 500 is arranged at the through hole 130 of the pump cover
  • the temperature protector 300 is on the outer surface of the pump cover
  • the temperature protector 300 The temperature-sensing surface 310 is attached to the heat-conducting member 500, and the temperature protector 300 and the heat-conducting member 500 can be fixed by the fixing member 400. After being assembled in place, a closed structure is formed at the position of the through hole 130. On the one hand, it can prevent liquid from flowing through the through hole 130.
  • the heat conduction element 500 can quickly transfer the temperature in the heating chamber, improve the temperature sensitivity of the temperature protector 300, reduce the temperature fluctuation of the liquid heating process, and prolong the working life of the heat pump 2000.
  • the plastic pump cover can reduce its own thermal conductivity, reduce heat loss in the heating chamber, make it easier to manufacture, help reduce the cost of the heat pump 2000, further improve the insulation performance of the pump cover, and reduce risks such as leakage, thereby Improve the safety of Heat Pump 2000.
  • Embodiments of the present disclosure also provide a washing appliance, which may be a dishwasher (not shown in the drawings). Since the washing appliance adopts all the technical solutions of the heat pump 2000 of the above-mentioned embodiment, it has at least the advantages of the above-mentioned embodiment. All beneficial effects brought by the technical solution will not be repeated here.

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Abstract

一种加热泵（1000）的加热组件及加热泵（2000）、洗涤电器，其中加热泵(1000)的加热组件包括泵盖(100)、加热管(200)、导热件(500)以及温度保护器(300)。泵盖(100)用于覆盖加热泵(1000)的加热腔，泵盖(100)朝向加热腔的一侧为内侧面，远离加热腔的一侧为外侧面，泵盖(100)开设有与加热腔连通的通孔(130)。加热管(200)与泵盖(100)连接且至少部分位于加热腔。导热件(500)覆盖于通孔(130)处。温度保护器(300)设于外侧面且与加热管(200)电连接，温度保护器(300)的感温面与导热件(500)贴合。

Description

加热泵的加热组件及加热泵、洗涤电器
相关申请的交叉引用
本申请要求于2021年08月19日提交的申请号为202110955873.8、名称为“加热泵的加热组件及加热泵、洗涤电器”，于2021年08月19日提交的申请号为202121963979.4、名称为“加热泵的加热组件及加热泵、洗涤电器”，于2021年08月19日提交的申请号为202110956378.9、名称为“加热泵和洗涤电器”，以及于2021年08月19日提交的申请号为202121960358.0、名称为“加热泵和洗涤电器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及家用电器相关技术领域，尤其是涉及一种加热泵的加热组件及加热泵、洗涤电器。
背景技术
加热泵用于加热流体，应用于洗碗机等洗涤设备，从安全角度考虑，加热泵在使用过程中需保证加热过程液体不能过热沸腾，避免加热腔内产生高温、高压、干烧等问题。相关技术中，在加热泵上增加温度保护器进行加热保护，温度保护器安装在泵壳的外侧，通过泵壳导热的温度来感应水温，然而受泵壳导热性能影响，温度感应的准确性不高，且泵壳存在热量散失问题，控温精度低。
发明内容
本公开旨在至少部分解决现有技术中存在的技术问题之一。为此，本公开提出一种适用于加热泵的加热组件，无需采用泵壳进行导热，能够提高温度感应的准确度，降低加热腔内出现高温、高压、干烧等问题。
本公开还提供应用上述加热组件的加热泵和洗涤电器。
根据本公开的第一方面实施例的加热组件，包括：
泵盖，所述泵盖用于覆盖所述加热泵的加热腔，所述泵盖朝向所述加热腔的一侧为内侧面，远离所述加热腔的一侧为外侧面，所述泵盖开设有与所述加热腔连通的通孔；
加热器，所述加热器与所述泵盖连接且至少部分位于所述加热腔；
导热件，所述导热件覆盖于所述通孔处；
温度保护器，所述温度保护器设于所述外侧面且与所述加热器电连接，所述温度保护器的感温面与所述导热件贴合。
根据本公开第一方面实施例的加热组件，至少具有如下有益效果：
将加热器和温度保护器安装在泵盖上，泵盖上开设有通孔并在通孔处设置导热件，导热件起到传递热量的作用，温度保护器的感温面通过导热件能够快速感应加热腔内的温度变化，能够显著提高温度感应的灵敏度，从而提高控温的精准度，有利于降低液体加热过程温度的波动幅度，大大降低加热腔内出现高温、高压、干烧等情况，延长加热泵的使用寿命；而且采用非金属材料制作泵盖，无需依靠泵盖进行导热，减少热量的散失，可降低制作成本，并可进一步提高绝缘性能，有利于提高加热泵的安全性。
根据本公开的一些实施例，所述导热件设有与所述通孔匹配的凹部，所述温度保护器设于所述凹部，所述凹部的底面为导热面且与所述感温面贴合。
根据本公开的一些实施例，所述凹部的侧边设有沿周向延伸的凸缘，所述凸缘的直径大于所述通孔的孔径，所述凸缘与所述外侧面贴合或连接。
根据本公开的一些实施例，所述温度保护器位于所述感温面的外周壁与所述凹部的内周壁贴合。
根据本公开的一些实施例，所述导热件与所述泵盖之间设有密封件，所述密封件位于所述凹部与所述通孔的内周壁之间。
根据本公开的一些实施例，所述导热件与所述温度保护器连接形成一体式结构。
根据本公开的一些实施例，所述导热件为金属导热材料制成。
根据本公开的一些实施例，所述泵盖为非金属材料制成
根据本公开的一些实施例，所述泵盖为一体成型的塑料件。
根据本公开的一些实施例，还包括：
固定件，所述固定件与所述泵盖连接，用于固定所述温度保护器。
根据本公开的一些实施例，所述固定件设有用于压紧所述温度保护器的第一弹性部和用于压紧所述导热件的第二弹性部。所述固定件与所述凹部围设形成与所述温度保护器匹配的容纳腔，所述固定件设有沿垂直于所述感温面的方向顶压所述温度保护器的第一弹性部。
根据本公开的一些实施例，所述泵盖的外侧面环绕所述通孔设有加固环，所述加固环的上端面与所述导热件贴合，所述固定件设有顶压所述导热件的第二弹性部。
根据本公开的一些实施例，所述固定件设有第一连接部，所述泵盖的外侧设有第二连接部，所述第一连接部与所述第二连接部连接，以使所述固定件连接于所述泵盖。
根据本公开的一些实施例，所述加热组件还包括第一接线端和第二接线端，其中所述第一接线端和第二接线端固定于所述泵盖，所述温度保护器设有第一引脚和第二引脚，所述第一接线端通过第一硬质导线与所述第一引脚电连接，所述第二接线端通过第二硬质导线与所述第二引脚电连接，所述泵盖的外侧面设有用于固定所述第一硬质导线的第一固线部和用于固定所述第二硬质导线的第二固线部。
根据本公开的一些实施例，所述第一固线部设有第一卡槽，所述第一硬质导线设有第一弯折部，所述第一卡槽的底壁支撑至少部分所述第一弯折部，所述第二固线部设有第二卡槽，所述第二硬质导线设有第二弯折部，所述第二卡槽的底壁支撑至少部分所述第二弯折部。
根据本公开的一些实施例，所述泵盖的外侧面设有连接器，所述连接器设有第三引脚和第四引脚，所述第三引脚与所述第一引脚连接，所述第四引脚与所述第一硬质导线连接，以使所述连接器串联于所述温度保护器和所述第一硬质导线之间。
根据本公开的一些实施例，所述加热器为加热管，所述泵盖的外侧面设有凸台，所述加热管的两端沿所述加热腔内侧延伸至所述凸台的顶部，所述凸台设有与所述第一接线端和第二接线端对应的开孔，所述第一接线端和所述第二接线端沿所述开孔延伸至所述泵盖外侧。
根据本公开的一些实施例，所述泵盖开设有与所述加热腔连通的进水口。
根据本公开的第二方面实施例的加热泵，包括：
上述第一方面实施例所述的加热组件；以及
泵壳，所述泵壳与所述泵盖连接以限定所述加热腔，所述泵壳设有与所述热腔连通的出水口。
根据本公开的一些实施例，所述加热泵还包括：
电机，所述电机设于所述泵壳内；以及
叶轮组件，所述叶轮组件设于所述加热腔内且与所述电机连接。
根据本公开第二方面实施例的加热泵，至少具有如下有益效果：
加热泵采用上述实施例的加热组件，无需依靠泵盖进行导热，能够显著提高温度保护器温度感应的灵敏度，从而提高控温的精准度，有利于降低液体加热过程温度的波动幅度，有效解决加热腔内出现高温、高压、干烧等问题，延长加热泵的使用寿命；而且非金属材料的泵盖能够减少热量的散失，可降低制作成本，并可进一步提高绝缘性能，有利于提高加热泵的安全性。
根据本公开的第三方面实施例的洗涤电器，包括上述第二方面实施例所述的加热泵。
洗涤电器采用了上述实施例的加热泵的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果。
本公开的其它特征和优点将在随后的说明书中阐述，并且，部分地从说明书中变得显而易见，或者通过实施本公开而了解。
附图说明
图1是本公开一实施例的加热组件的结构示意图；
图2是本公开一实施例的加热组件的俯视结构示意图；
图3是图2中A-A方向的剖面结构示意图；
图4是图3中B处的放大结构示意图；
图5是本公开一实施例的泵盖的局部剖面结构示意图；
图6是图5中C处的放大结构示意图；
图7是本公开一实施例的导热件的凹部内侧结构示意图；
图8是本公开一实施例的导热件的凹部外侧结构示意图；
图9是本公开一实施例的温度保护器的上端面结构示意图；
图10是本公开一实施例的温度保护器的底面结构示意图；
图11是本公开另一实施例的温度保护器的结构示意图；
图12是本公开一实施例的固定件的结构示意图；
图13是本公开另一实施例的导热件装配结构的剖面示意图；
图14是本公开一实施例的加热泵的剖面结构示意图；以及
图15是本公开一实施例的泵盖的结构示意图。
附图标记：
泵盖100；进水口110；进水通道111；凸台120；开孔121；通孔130；第四柱面131；加固环140；第三端面141；环形槽150；第四端面151；第五柱面152；第二连接部160；卡槽161；第一固线部170；第一卡槽171；第二固线部180；第二卡槽181；进水管190；
加热管200；第一接线端210；第二接线端220；第一硬质导线230；第一弯折部231；第二硬质导线240；第二弯折部241；
温度保护器300；感温面310；第三柱面320；第一引脚330；第二引脚340；
固定件400；容纳腔410；第一连接部420；卡扣421；第一弹性部430；第二弹性部440；
导热件500；凹部510；第一导热面511；第二导热面512；第一柱面513；第二柱面514；凸缘520；第一端面521；第二端面522；
O型圈600；
连接器700；第三引脚710；第四引脚720；
泵壳800；电机810；叶轮组件820；出水管830；以及
加热泵1000。
具体实施方式
下面详细描述本公开的实施例，所述实施例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例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，如果有描述到第一、第二等只是用于区分技术特征为目的，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或者隐含指明所指示的技术特征的先后关系。
在本公开的描述中，需要理解的是，涉及到方位描述，例如上、下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公开和简化描述，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公开的限制。
本公开的描述中，需要说明的是，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本公开中的具体含义。
参考图1至图13描述本公开实施例的加热组件，该加热组件适用于加热泵2000，下面以具体示例对加热组件进行说明。
参见图1和图2所示，本公开的实施例的加热组件，包括泵盖100和加热器，该泵盖100为加热泵2000的加热腔的盖板，通过泵盖100与加热泵2000的泵壳800配合可以限定出加热腔，该泵盖100也可理解为加热泵2000的上壳体，加热器安装在上壳体的内侧面，使加热器能够位于加热腔内。如图1所示，泵盖100下侧为内侧面，上侧为外侧面，内侧面构成加热腔的内壁，泵盖100上设有进水口110，水经过进水口110进入加热腔内，并通过加热器对加热腔内的水进行加热，从而产生热水。
参见图2和图3所示，在泵盖100的外侧面上设置温度保护器300，并在通孔130位置设置导热件500，其中，导热件500大致呈板体结构，具有较佳的导热性能，导热件500的一侧面朝向加 热腔内侧，导热件500的另一侧面朝向加热腔的外侧，温度保护器300的感温面310与导热件500朝向加热腔外侧的侧面贴合。由于导热件500覆盖在通孔130上，导热件500构成加热腔侧壁的一部分，加热腔内的热量能够直接传递到导热件500上，这样温度保护器300的感温面310所感应到的温度更接近于加热腔内的水温。
可理解到，相对于传统采用泵壳作为导热结构的方式，本公开实施例无需依靠泵盖100进行导热，温度保护器300通过导热件500能够快速感应加热腔内的温度变化，导热件500可大大降低泵盖100的厚度、导热性能等因素的影响，传热效果更佳，能够显著提高温度保护器300温度感应的灵敏度，从而提高控温的精准度。
参见图1、图2、图3与图15所示，实施例的加热器采用为加热管200，实施例中加热管200具有两个接线端，包括第一接线端210和第二接线端220，第一接线端210和第二接线端220均穿过泵盖100且与温度保护器300进行串联连接。其中，泵盖100的上表面设置有用于固定加热管200的凸台120，凸台120凸出于泵盖100的外侧面。加热管200包括环形管段和直管段，其中环形管段环绕加热腔设置，加热管200的两端均沿凸台120的高度方向延伸形成直管段，凸台120的顶端设有开孔121，第一接线端210和第二接线端220穿过开孔121并固定在凸台120的顶部位置，第一接线端210和第二接线端220分别通过导线与温度保护器300进行电连接，从而使加热管200与泵盖100连接成一体结构，具体不再赘述。
可以理解的是，实施例的温度保护器300具有感温面310，感温面310采用双金属片作为感温元件,双金属片能够根据温度变化而产生动作，可以通过双金属片打开或闭合电路的通电，从而起到控温作用。实施例中，温度保护器300串联在加热管200的供电电路中，温度保护器300能够根据感温面310的感应温度来控制加热管200的通电，降低加热腔内出现高温、高压、干烧等情况，有利于延长加热泵2000的使用寿命。
具体的，加热管200对加热腔内的水进行加热时，温度保护器300处于通电状态；当水温过高而超过设定温度时，感温面310的双金属片会产生动作，使电路断开通电，加热管200停止加热，从而避免水温过高带来的安全问题。需要说明的是，当水温降低到低于设定温度时，温度保护器300会恢复通电，进而恢复加热管200的正常加热状态，达到控温的目的，具有性能稳定、精度高、可靠性高、寿命长等特点。
由于加热腔内的水升温达到沸腾时，在加热腔内会形成高温高压状态，存在较大的安全隐患，而且加热管200与沸腾产生的气体接触产生干烧，降低加热泵2000的使用寿命。因此，从安全角度考虑，加热腔内的液体加热温度不能过热沸腾，即不超过100℃，具体根据产品的实际使用要求而设定温度阈值，此处不作限定。
以洗碗机为示例，水温通常设置不超过85℃，既可满足使用要求，也降低加热腔内产生高温、高压、干烧等风险。也就是说，通过温度保护器300通过导热件500实时感应水温的变化，当水温低于85℃时，温度保护器300处于导通状态，加热管200正常加热；当水温高于85℃时，温度保护器300断开供电电路的通电，使加热管200停止加热，从而使水温降低至85℃以下，起到有效的温度保护作用，降低水加热过程温度的波动幅度，延长加热泵2000的使用寿命，也提高洗碗机的使用安全性。
需要说明的是，通孔130的尺寸可根据温度保护器300的感温面310的尺寸而设置，实施例不作进一步限定。通孔130设置位于泵盖100的顶端，导热件500覆盖在通孔130位置，通过导热件500可以封堵通孔130，能够防止液体从通孔130泄露到加热腔外侧，感温面310也便于与导热件500进行定位，使感温面310与导热件500贴合更紧密，减少热量的散失，结构简单可靠。
可理解到，温度保护器300的感温面310无需通过泵盖100自身来传递热量，实施例中泵盖100采用非金属材料制作而成，例如，泵盖100可以由塑料、陶瓷等材料制作，相对于金属材料的壳体，一方面可以降低泵盖100的导热性能，减少加热腔内热量的散失，有利于降低制作成本，另一方面采用非金属材料能够进一步提高泵盖100的绝缘性能，由于加热管200与泵盖100连接，对加热管200能够起到有效的绝缘作用，降低漏电等风险，从而提升加热泵2000的安全性。
参见图3和图4所示，在一些实施例中，导热件500的表面沿通孔130的轴向向下凹陷形成有 凹部510，该凹部510与通孔130匹配，导热件500覆盖在通孔130上时，凹部510伸入通孔130内，使导热件500与通孔130紧密配合。温度保护器300上具有感温面310的一端插入到凹部510内，使感温面310能够与凹部510的底面相贴合。可理解到，凹部510的底面为导热面，其中，凹部510的底面朝向加热腔的一侧为第一导热面511，凹部510的底面与感温面310贴合的一侧为第二导热面512，加热腔的热量能够依次经过第一导热面511和第二导热面512传递至感温面310上，使感温面310能够快速感知加热腔内的温度变化情况。
需要说明的是，如图4所示，凹部510沿通孔130的轴向由通孔130的上端向下延伸，使凹部510在通孔130的轴向方向上具有一定的高度，通过温度保护器300的下端插入到凹部510内，既能够使温度保护器300与导热件500进行定位，也能够使导热件500与通孔130进行定位，进而使感温面310与第二导热面512定位更准确，贴合更紧密，也便于快速安装温度保护器300，结构更稳定可靠。
参见图7和图8所示，凹部510大致为圆形的凹槽结构，凹部510上端的外周边设有沿周向延伸的凸缘520，凸缘520向外延伸，使凸缘520的直径大于通孔130的孔径，这样导热件500的凹部510可以伸入通孔130内，而凸缘520可以连接在泵盖100上。如图4所示，凸缘520由凹部510的上端口位置向外延伸，使凸缘520与凹部510配合能够完全覆盖在通孔130上，沿通孔130的轴向方向上，通过凸缘520对凹部510起到限位作用；沿通孔130的径向方向上，通过凹部510对凸缘520起到限位作用，有效提高安装结构的稳定性和可靠性。
参见图7和图8所示，需要说明的是，凹部510与凸缘520连接组成导热件500，实施例中导热件500采用金属导热材料制作而成，具体为高导热材料，能够实现快速传递热量，例如，可以是不锈钢、铜、铝合金等。以不锈钢材料为示例，导热件500采用不锈钢板冲压成型，使不锈钢板上形成凹部510，且凹部510的边缘形成凸缘520，也就是说凹部510与凸缘520为一体成型结构，更加稳定可靠。可理解到，在满足安装强度要求的前提下，不锈钢板的厚度可设置足够小，相对于泵盖100的厚度，导热面的厚度更薄，提高导热性能，大大提高温度保护器300感温的灵敏度。
可以理解的是，温度保护器300设置在泵盖100的外侧，且感温面310通过导热件500进行导热，实施例中泵盖100无需采用金属材料，例如泵盖100为塑料制作而成，采用一体注塑成型方式制作泵盖100，制作容易实现，成本更低。考虑到泵盖100与导热件500采用不同的材料制作，导热件500安装在通孔130位置时，导热件500可通过凸缘520与泵盖100连接，例如，凸缘520与泵盖100可以是粘接、通过螺丝等连接件进行连接，也可以将凸缘520包塑在泵盖100中，从而形成一体化结构，简化安装结构，更加稳定可靠。
参见图7和图8所示，凹部510大致呈圆柱形状，凹部510的外周壁为第一柱面513，凹部510的内周壁为第二柱面514。参见图9和图10所示，感温面310设置在温度保护器300的下端面，靠近温度保护器300下端面的端部与凹部510匹配，该端部的外周壁为第三柱面320。
参见图4所示，温度保护器300的第三柱面320与凹部510的第二柱面514紧贴，使温度保护器300能够稳定限位在凹部510内，使感温面310与第二导热面512配合更紧密，提升感温灵敏度。凹部510的第一柱面513与通孔130的内周壁紧贴，使导热件500得到有效的限位，导热件500与通孔130配合更紧密可靠。
需要说明的是，凸缘520沿通孔130的轴向方向上具有第一端面521和第二端面522，其中，第一端面521朝向下，第二端面522朝向上且与凹部510的端口齐平，第一端面521与第一柱面513过渡连接，第二端面522与第二柱面514过渡连接。第一端面521与泵盖100的外侧面贴合，而且第一柱面513与通孔130的内周壁贴合，使得导热件500与通孔130配合更紧密。
参见图11所示，在一些实施例中，导热件500和温度保护器300的结构与图7至图10所示实施例的结构大致相同，区别在于，导热件500与温度保护器300连接形成一体式结构。也就是说，温度保护器300的下端固定在导热件500的凹部510内，保持感温面310与凹部510内侧的底面紧密接触，凸缘520由温度保护器300的外侧壁向外延伸。装配时，将温度保护器300的下端插入到通孔130内，通过凸缘520进行限位，无需单独装配导热件500，简化安装结构，具体不再赘述。
参见图4所示，在通孔130的内周壁上设置有密封件，密封件环绕凹部510的外周壁设置，有 效提高导热件500与通孔130之间的密封性。具体来说，图4所示实施例的密封件为橡胶材质的O型圈600，通孔130的内周壁设置有与O型圈600匹配的环形槽150，O型圈600设置在环形槽150内。
可以理解的是，实施例中将环形槽150设置位于通孔130上端的内周壁，装配到位后，O型圈600受到凸缘520和凹部510的压力，O型圈600分别与第一端面521和第一柱面513紧贴。由于第一柱面513与通孔130的内周壁紧贴，通过O型圈600与第一柱面513的贴合，有效提高第一柱面513与通孔130内周壁之间的密封性。而且进一步通过第一端面521与O型圈600的贴合，提高第一端面521与泵盖100的外侧面之间的密封性，从而有效防止加热腔的液体在通孔130位置发生渗漏，可靠性高。
值得注意的是，密封件不限于上述实施例所示的O型圈600，也可以采用其它形式的密封结构，例如，采用密封胶替代O型圈600，密封胶填充在凹部510的第一柱面513与通孔130的内周壁之间，以及在第一端面521与外侧面之间。又如，第一柱面513通过螺纹方式与通孔130的内周壁连接，在第一柱面513与通孔130的内周壁之间增加密封材料，达到密封的效果，导热件500与泵盖100具有较高的密封性能。
需要说明的是，参见图13所示，在一些实施例中，凸缘520与泵盖100可通过包塑方式连接成一体，包塑成型后，凸缘520嵌入到泵盖100内，使导热件500既能起到导热作用，又可以有效封闭通孔130，可无需采用密封件进行密封，进一步简化安装结构。
参见图5和图6所示，在泵盖100的外侧面靠近通孔130处设置有加固环140，加固环140向上凸出于外侧面且环绕通孔130设置，通过加固环140能够增加通孔130的高度，提高泵盖100在通孔130位置的强度，保证温度保护器300和导热件500的安装结构的稳定性和可靠性。
具体来说，环形槽150设置在加固环140上端的内侧壁，由上端端面沿轴向向下凹陷形成环形槽150，其中，加固环140上端的端面为第三端面141，环形槽150的底面为第四端面151，通孔130的内周壁为第四柱面131，环形槽150的内周壁为第五柱面152，第三端面141与第五柱面152过渡连接，第四端面151与第四柱面131过渡连接。O型圈600安装在环形槽150内，导热件500覆盖在通孔130上，温度保护器300安置在导热件500上。
参见图4所示，在装配到位后，凹部510的第一柱面513与O型圈600紧密贴合，O型圈600受挤压而紧贴在第四端面151和第五柱面152上，凸缘520的第一端面521均与第三端面141和O型圈600紧密贴合，从而形成有效的密封结构，具有较佳的密封效果。
参见图4和图5所示，在泵盖100的外侧设置固定件400，固定件400用于将温度保护器300固定在泵盖100上，固定件400内设有与温度保护器300匹配的容纳腔410，固定件400上设有第一连接部420，在泵盖100设置有与第一连接部420对应的第二连接部160，通过第一连接部420与第二连接部160配合进行连接，使固定件400能够连接在泵盖100的外侧面上，并通过固定件400将温度保护器300限位在容纳腔410内，这样装配到位后，固定件400和导热件500分别对温度保护器300的上下两端进行限位，使温度保护器300固定在固定件400与导热件500中间，实现固定温度保护器300的目的。
参见图12所示，固定件400为一体注塑成型的塑料件，在固定件400的两侧边分别设有第一连接部420，固定件400的中间位置为容纳腔410，容纳腔410内设有第一弹性部430，第一弹性部430为与固定件400一体成型的弹性凸起，通过第一弹性部430能够将温度保护器300压紧在导热件500上，使感温面310与导热面接触更紧密，保证感温面310具有较高的感温灵敏度。
参见图12所示，在固定件400上还设置有第二弹性部440，第二弹性部440设置位于容纳腔410的外侧，第二弹性部440用于压紧导热件500。可理解到，温度保护器300的下端定位在凹部510内，凸缘520位于温度保护器300的外侧，固定件400盖合在温度保护器300的上方，温度保护器300的上端与容纳腔410对应，温度保护器300的上端设有接电引脚，接电引脚330能够延伸出固定件400的外侧，便于与加热管200连接。如图4所示，当固定件400与泵盖100装配到位后，第一弹性部430顶压温度保护器300的上端面，第二弹性部440顶压凸缘520的第二端面522，在弹力作用下，温度保护器300和导热件500均得到限位。
需要说明的是，实施例中，固定件400上设置有两个第一弹性部430和四个第二弹性部440，通过两个第一弹性部430同时压紧温度保护器300，有利于感温面310受力平衡，使感温面310与导热面接触更均匀，保证感温的准确度。四个第二弹性部440沿凸缘520的周向分布，使凸缘520受到的弹性作用力更均匀，更加稳定可靠，此外，由于加热腔内在加热升温时气压会增大，在固定件400固定温度保护器300的同时，通过第二弹性部440压紧导热件500，减小出现因加热腔的压力推动作用下使导热件500偏离通孔130的情况，结构可靠性更高。第一弹性部430和第二弹性部440的数量可根据实际使用要求而设置，具体不再赘述。
参见图6和图12所示，实施例中第一连接部420设有卡扣421，第二连接部160设有卡槽161，卡扣421设置在第一连接部420的侧壁上；第二连接部160设置在加固环140位置，卡槽161开设在第二连接部160的侧壁上，第一连接部420与第二连接部160相抵接时通过卡扣421扣合在卡槽161内，从而使固定件400与泵盖100连接。通过卡扣421与卡槽161配合的连接结构，便于安装与拆卸温度保护器300，操作简便。
需要说明的是，固定件400与泵盖100的连接方式不限于上述实施例的结构，例如，固定件400与泵盖100可以通过螺钉、螺纹等连接件进行连接，也可以采用粘接、过盈配合、焊接等方式进行连接，其中焊接可以是超声波焊接、热熔焊接或其它的焊接方式，具体不作限定。
参见图1和图2所示，温度保护器300的两个接电引脚分别是第一引脚330和第二引脚340，第一引脚330和第二引脚340伸出固定件400的外侧，第一引脚330与加热管200的第一接线端210电性连接，第二引脚340与加热管200的第二接线端220电性连接。实施例中，采用硬质导线作为电路的连接线，具体来说，第一接线端210通过第一硬质导线230与第一引脚330连接，第二接线端220通过第二硬质导线240与第二引脚340连接，从而使温度保护器300与加热管200串联。
可以理解的是，第一硬质导线230和第二硬质导线240采用硬质金属，例如不锈钢材质，此处不作进一步限定。第一硬质导线230和第二硬质导线240的形状固定，刚性大，在施加压力时，需要保持第一硬质导线230、第二硬质导线240的位置稳定。实施例中，在上泵壳100的外侧面设置第一固线部170和第二固线部180，利用第一固线部170限定第一硬质导线230的位置,以及利用第二固线部180限定第二硬质导线240的位置，防止第一硬质导线230和第二硬质导线240的位置发生偏移，便于在第一硬质导线230与第二硬质导线240安装到位后进行焊接操作，提高焊接效率。
参见图1和图15，第一固线部170和第二固线部180均采用立柱结构，并且凸出在上泵壳100的外侧面上，第一固线部170能够支撑起第一硬质导线230，第一硬质导线230与上泵壳100之间具有空间，可供进行焊接时施加夹持力；第二固线部180能够支撑起第二硬质导线240，第二硬质导线240与上泵壳100之间具有空间，可供进行焊接时施加夹持力。第一固线部170和第二固线部180分布在温度保护器300的两侧，第一硬质导线230和第二硬质导线240互不干涉，便于进行焊接连接。
可以理解的是，第一固线部170设置有第一卡槽171，第一硬质导线230的其中一部分卡装于第一卡槽171，达到固定第一硬质导线230的目的；第二固线部180设置有第二卡槽181，第二硬质导线240的其中一部分卡装于第二卡槽181，达到固定第二硬质导线240的目的。
参照图1、图2和图15所示，第一卡槽171的开口朝向上方，在组装时，将第一硬质导线230从上向下压入第一卡槽171即可，组装简便，而且第一卡槽171将第一硬质导线230限定在第一固线部170的顶端，具有足够的支撑，使得第一硬质导线230的位置、高度固定；同样的，第二卡槽181的开口朝向上方，在组装时，将第二硬质导线240从上向下压入第二卡槽181即可，使第二硬质导线240得到足够的支撑，使得第二硬质导线240的位置、高度固定，便于进行焊接。
需要说明的是，第一卡槽171的开口也可以设置在第一固线部170的侧面，比如第一卡槽171的开口朝向温度保护器300，第一硬质导线230部分卡入第一卡槽171，便于微调第一硬质导线230与温度保护器300之间的相对位置。第一固线部170和第二固线部180的数量不限于一个，根据实际产品要求可设置多个第一固线部170和第二固线部180，使第一硬质导线230和第二硬质导线240得到更可靠的支撑，具体不再赘述。
参见图1和图2所示，第一硬质导线230通过弯折形成有第一弯折部231，第二硬质导线240 通过弯折形成有第二弯折部241，使得第一硬质导线230和第二硬质导线240的端部转为水平方向，便于焊接操作。以第一硬质导线230为示例进行说明，第一弯折部231卡装在第一卡槽171中，第一卡槽171通过两侧的侧壁夹持第一弯折部231，第一卡槽171的底壁能够支撑第一弯折部231。可以是第一卡槽171的底壁支撑第一弯折部231的一部分，也可以是第一卡槽171的底壁对第一弯折部231提供多点支撑，还可以是第一卡槽171的底壁完全支撑第一弯折部231。
需要说明的是，泵盖100采用塑料材质，第一固线部170和第二固线部180均为塑料材质，且与泵盖100为一体注塑成型。第一固线部170和第二固线部180具有一定塑料弹性，使得第一硬质导线230能够卡装到第一卡槽171，第二硬质导线240能够卡装到第二卡槽181，不容易发生松脱，对第一硬质导线230和第二硬质导线240起到有效的固定作用。当然，在第一固线部170和第二固线部180上还可以设置限位结构，分别用于对第一硬质导线230和第二硬质导线240进行进一步的限定，提高装配结构稳定性，此处不再赘述。
参见图1、图2和图3所示，泵盖100上还安装有连接器700，连接器700与加热管200、温度保护器300串联，该连接器700用于连接洗碗机的电路，为加热管200提供供电。连接器700的两侧设置有第三引脚710和第四引脚720，其中，第三引脚710与温度保护器300的第一引脚330焊接，第四引脚720与第一硬质导线230焊接，温度保护器300的第二引脚340与第二硬质导线240焊接。
需要说明的是，实施例中，第一硬质导线230和第二硬质导线240的焊接方式均采用电阻焊，电阻焊是以电阻热为能源的焊接方式，包括以熔渣电阻热为能源的电渣焊和以固体电阻热为能源的电阻焊。电阻焊能够使工件处在一定电极压力作用下，并利用电流通过工件时所产生的电阻热将两工件之间的接触表面熔化而实现连接的焊接方式，焊接结构稳定可靠，导电性能佳。
参考图14描述本公开实施例的加热泵2000，下面以具体示例对加热组件进行说明。
参见图14所示，在泵壳800设置电机810和叶轮组件820，电机810固定安装在泵壳800内，叶轮组件820位于加热腔内，电机810的驱动轴延伸至加热腔内且与叶轮组件820连接，通过电机810能够带动叶轮组件820旋转。其中，泵盖100内设置有与进水口110连通的进水通道111，进水通道111与叶轮组件820的位置对应，使水流从进水口110进入经过进水通道111后到达叶轮组件820处。进水通道111位于泵盖100的中间位置，加热腔环绕进水通道111设置，加热器为加热管200且呈环状分布在加热腔内。
此外，在泵盖100的外侧可设置进水管190，该进水管190与进水口110连通，同时在泵壳800的外侧设置出水管830，该出水管830与出水口(附图未示出)连通，通过进水管190和出水管830可便于加热泵1000与洗碗机的供水管路和喷水管路连接。可理解到，进水管190与上泵壳100之间、出水管830与下泵壳800之间以及泵盖100与泵壳800之间均设置密封结构，使加热泵1000具有可靠的防水性，此处不再赘述。加热泵1000运行时，水流沿进水管190和进水口110进入上泵壳100，通过进水通道111到达叶轮组件820位置，叶轮组件820将水泵入到加热腔，使水在加热腔内旋转流动，经过加热后沿出水口和出水管830排出，从而达到加热水的目的。
参见图15所示，在泵盖100开设有通孔130，进水口110和通孔130均设置在泵盖100的顶部，通孔130与加热腔连通。参见图3所示，在泵盖100的外侧面设置有温度保护器300，并在通孔130位置设置导热件500，通过导热件500覆盖在通孔130，温度保护器300匹配安装通孔130内且在与导热件500位置对应，通过导热件500能够将加热腔内的热量传递至温度保护器300上。
具体来说，导热件500大致呈板体结构，采用导热材料制作而成，具有较佳的导热性能，导热件500的下侧面朝向加热腔，导热件500的上侧面朝向泵盖100的外侧，温度保护器300的感温面310与导热件500的上侧面贴合。由于通孔130与加热腔贯通，导热件500覆盖在通孔130上，导热件500构成加热腔内侧壁的一部分，加热腔内的热量能够直接传递到导热件500上，这样温度保护器300的感温面310所感应到的温度更接近于加热腔内的温度，使感温面310能够快速感应加热腔内的温度变化，感应效果更佳。
相对于传统采用泵体外壳作为导热结构的方式，本发明实施例通过导热件500能够快速传递加热腔内的热量，无需依靠泵盖100或泵壳800自身的壳体进行导热，这样温度保护器300通过导热 件500能够快速感应加热腔内的温度变化，温度响应效率更高，大大降低因壳体的厚度、导热性能等因素的影响，传热效果更佳，能够显著提高温度保护器300温度感应的灵敏度，从而有利于提高加热腔内控温的精准度。
实施例中，泵盖可采用塑料制作成型，导热件500可采用不锈钢材料制作，导热件500设置在泵盖的通孔130位置，温度保护器300在泵盖的外侧面，温度保护器300的感温面310与导热件500贴合，通过固定件400能够将温度保护器300和导热件500进行固定，装配到位后，在通孔130位置形成封闭结构，一方面能够防止液体从通孔130泄露到加热腔外侧，另一方面导热件500能够快速传递加热腔内的温度，提高温度保护器300的感温灵敏度，降低液体加热过程温度的波动幅度，延长加热泵2000工作寿命。
而且，塑料材质的泵盖可以降低自身的导热性能，减少加热腔内热量的散失，制作更容易，有利于降低加热泵2000的成本，也进一步提高泵盖的绝缘性能，降低漏电等风险，从而提升加热泵2000的安全性。
本公开实施例还提供的洗涤电器，该洗涤电器可以是洗碗机(附图未示出)，由于洗涤电器采用了上述实施例的加热泵2000的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，此处不再赘述。
上面结合附图对本公开实施例作了详细说明，但是本公开不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本公开宗旨的前提下作出各种变化。

Claims (21)

  1. 一种加热泵的加热组件，包括：
    泵盖，所述泵盖用于覆盖所述加热泵的加热腔，所述泵盖朝向所述加热腔的一侧为内侧面，远离所述加热腔的一侧为外侧面，所述泵盖开设有与所述加热腔连通的通孔；
    加热器，所述加热器与所述泵盖连接且至少部分位于所述加热腔；
    导热件，所述导热件覆盖于所述通孔处；以及
    温度保护器，所述温度保护器设于所述外侧面且与所述加热器电连接，所述温度保护器的感温面与所述导热件贴合。
  2. 根据权利要求1所述的加热组件，其中，所述导热件设有与所述通孔匹配的凹部，所述温度保护器设于所述凹部，所述凹部的底面为导热面且与所述感温面贴合。
  3. 根据权利要求2所述的加热组件，其中，所述凹部的侧边设有沿周向延伸的凸缘，所述凸缘的直径大于所述通孔的孔径，所述凸缘与所述外侧面贴合或连接。
  4. 根据权利要求2所述的加热组件，其中，所述温度保护器位于所述感温面的外周壁与所述凹部的内周壁贴合。
  5. 根据权利要求2所述的加热组件，其中，所述导热件与所述泵盖之间设有密封件，所述密封件位于所述凹部与所述通孔的内周壁之间。
  6. 根据权利要求1所述的加热组件，其中，所述导热件与所述温度保护器连接形成一体式结构。
  7. 根据权利要求1所述的加热组件，其中，所述导热件为金属导热材料制成。
  8. 根据权利要求1所述的加热组件，其中，所述泵盖为非金属材料制成。
  9. 根据权利要求8所述的加热组件，其中，所述泵盖为一体成型的塑料件。
  10. 根据权利要求1所述的加热组件，还包括：
    固定件，所述固定件与所述泵盖连接，用于固定所述温度保护器。
  11. 根据权利要求10所述的加热组件，其中，所述固定件与所述凹部围设形成与所述温度保护器匹配的容纳腔，所述固定件设有沿垂直于所述感温面的方向顶压所述温度保护器的第一弹性部。
  12. 根据权利要求10所述的加热组件，其中，所述泵盖的外侧面环绕所述通孔设有加固环，所述加固环的上端面与所述导热件贴合，所述固定件设有顶压所述导热件的第二弹性部。
  13. 根据权利要求10所述的加热组件，其中，所述固定件设有第一连接部，所述泵盖的外侧设有第二连接部，所述第一连接部与所述第二连接部连接，以使所述固定件连接于所述泵盖。
  14. 根据权利要求1所述的加热组件，还包括：第一接线端和第二接线端，其中所述第一接线端和第二接线端固定于所述泵盖，所述温度保护器设有第一引脚和第二引脚，所述第一接线端通过第一硬质导线与所述第一引脚电连接，所述第二接线端通过第二硬质导线与所述第二引脚电连接，所述泵盖的外侧面设有用于固定所述第一硬质导线的第一固线部和用于固定所述第二硬质导线的第二固线部。
  15. 根据权利要求14所述的加热组件，其中，所述第一固线部设有第一卡槽，所述第一硬质导线设有第一弯折部，所述第一卡槽的底壁支撑至少部分所述第一弯折部，所述第二固线部设有第二卡槽，所述第二硬质导线设有第二弯折部，所述第二卡槽的底壁支撑至少部分所述第二弯折部。
  16. 根据权利要求14所述的加热组件，其中，所述泵盖的外侧面设有连接器，所述连接器设有第三引脚和第四引脚，所述第三引脚与所述第一引脚连接，所述第四引脚与所述第一硬质导线连接，以使所述连接器串联于所述温度保护器和所述第一硬质导线之间。
  17. 根据权利要求14所述的加热泵，其中，所述加热器为加热管，所述泵盖的外侧面设有凸台，所述加热管的两端沿所述加热腔内侧延伸至所述凸台的顶部，所述凸台设有与所述第一接线端和第二接线端对应的开孔，所述第一接线端和所述第二接线端沿所述开孔延伸至所述泵盖外侧。
  18. 根据权利要求1所述的加热组件，其中，所述泵盖开设有与所述加热腔连通的进水口。
  19. 一种加热泵，包括：
    如权利要求1至18中任一项所述的加热组件；以及
    泵壳，所述泵壳与所述泵盖连接以限定所述加热腔，所述泵壳设有与所述热腔连通的出水口。
  20. 根据权利要求19所述的加热泵，还包括，
    电机，所述电机设于所述泵壳内；以及
    叶轮组件，所述叶轮组件设于所述加热腔内且与所述电机连接。
  21. 一种洗涤电器，包括如权利要求19所述的加热泵。
PCT/CN2021/121415 2021-08-19 2021-09-28 加热泵的加热组件及加热泵、洗涤电器 WO2023019695A1 (zh)

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CN102297506A (zh) * 2011-08-12 2011-12-28 杭州热威机电有限公司 和泵相结合的加热器
JP2012187356A (ja) * 2011-03-14 2012-10-04 Harman Co Ltd 食器洗浄機
CN108209823A (zh) * 2018-03-07 2018-06-29 中山市金中电热科技有限公司 一种洗碗机加热器新型结构
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CN111706520A (zh) * 2020-06-19 2020-09-25 佛山市威灵洗涤电机制造有限公司 电泵的壳体组件、电泵和洗碗机
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JP2012187356A (ja) * 2011-03-14 2012-10-04 Harman Co Ltd 食器洗浄機
CN102297506A (zh) * 2011-08-12 2011-12-28 杭州热威机电有限公司 和泵相结合的加热器
CN108209823A (zh) * 2018-03-07 2018-06-29 中山市金中电热科技有限公司 一种洗碗机加热器新型结构
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