Integrated heating pump and dish washing machine
By integrating an external fuse and a heat-conducting sleeve into the dishwasher's heat pump, the problem of excessively long heat pumps is solved, improving the versatility of the heat pump installation and the space utilization efficiency of the dishwasher, while ensuring the stability and safety of the heat pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-03
AI Technical Summary
The heating tube of the existing dishwasher heating pump is too long, which causes spatial layout conflicts, restricts the reasonable arrangement of other components, makes it difficult to adapt to different models of dishwashers, and affects the versatility of installation and space utilization efficiency.
An integrated heating pump is designed by placing a fuse on the outer wall of the heating tube to reduce the length of the heating tube, and using a heat-conducting sleeve to be electrically connected in series with the heating tube and fixed with a mounting plate. The interior of the heating tube is filled with magnesium oxide powder to fix the heating wire, forming a stable heating assembly.
It effectively reduces the overall size of the heat pump, improves its versatility for installation in different models of dishwashers, ensures the stability and safety of the heat pump, and improves the space utilization efficiency and cleaning effect of the dishwasher.
Smart Images

Figure CN223964612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household equipment technology, and in particular to an integrated heat pump and a dishwasher using the integrated heat pump. Background Technology
[0002] The heat pump in a dishwasher has two functions: heating and pumping water. Commonly used heat pumps in this field have relatively long heating elements. In the limited internal space of a dishwasher, an excessively long heat pump can conflict with the spatial layout of other components, severely limiting their efficient arrangement and reducing the utilization of the dishwasher's internal space. Different dishwasher models have different internal spatial structures, and an excessively long heat pump is difficult to adapt to the internal structures of various dishwashers. This significantly restricts the versatility of the heat pump in different dishwasher models, becoming a major obstacle to the efficient design and diversified development of dishwashers.
[0003] Therefore, a new heating pump structure needs to be designed to reduce the length of the heating pump and improve its versatility. Utility Model Content
[0004] The main objective of this invention is to propose an integrated heat pump and dishwasher, which aims to reduce the length of the heat pump and improve its versatility.
[0005] To achieve the above objectives, the present invention proposes an integrated heat pump for a dishwasher, comprising:
[0006] A pump body, wherein a pump cavity is formed within the pump body, and the pump body includes an inlet and an outlet;
[0007] An electric motor connected to the pump body, with its shaft passing through the pump body; and an impeller located inside the pump body and mounted on the shaft.
[0008] A heating assembly includes a heating tube, a fuse, and a heat-conducting sleeve. The heating tube is fixedly connected to the pump body and is located inside the pump cavity. The heat-conducting sleeve is welded to the heating tube. The fuse is disposed inside the heat-conducting sleeve. The fuse senses the temperature of the heating tube through the heat-conducting sleeve and is electrically connected in series with the heating tube.
[0009] In one embodiment, the heating tube includes an arc segment and two straight segments connected to the arc segment; the arc segment is located outside the impeller, and the straight segments extend out of the pump body; one end of the heat-conducting sleeve is welded to the arc segment, and the other end extends out of the pump body.
[0010] In one embodiment, the integrated heating pump further includes a mounting plate mounted on the pump body for fixing the heating tube and the end of the heat-conducting sleeve away from the arc segment.
[0011] In one embodiment, the pump body has a plurality of first mounting holes and a plurality of second mounting holes at the position corresponding to the mounting plate. The plurality of first mounting holes are used for the heating tube and the heat-conducting sleeve to pass through, and the plurality of second mounting holes are used to lock the mounting plate.
[0012] In one embodiment, the pump body has a third mounting hole at the position corresponding to the mounting plate. The integrated heating pump also includes a heat-conducting cover and a temperature controller. The heat-conducting cover is disposed in the third mounting hole and extends into the pump body to contact the fluid inside the pump body. The temperature controller is mounted on the mounting plate, and a portion of the temperature controller is located inside the heat-conducting cover.
[0013] In one embodiment, the thermostat, the fuse, and the heating element are electrically connected in series.
[0014] In one embodiment, the pump body includes an upper pump housing, a lower pump housing, and a sealing ring. The upper pump housing and the lower pump housing are assembled to form the pump cavity, and the sealing ring is disposed at the connection between the upper pump housing and the lower pump housing.
[0015] In one embodiment, an inlet pipe is integrally provided at the upper end of the upper pump housing, and an outlet pipe is integrally provided on the circumferential side of the upper pump housing. The inlet is located inside the inlet pipe, and the outlet is located inside the outlet pipe.
[0016] In one embodiment, the heating tube is provided with a heating wire and a filler. When the heating wire is energized, it generates heat to heat the fluid flowing through the pump chamber. The filler fills the remaining space inside the heating tube.
[0017] This utility model also proposes a dishwasher, including the aforementioned integrated heating pump.
[0018] The technical solution of this utility model places the fuse on the outer wall of the heating tube, thereby reducing the length of the heating tube and the length of the heating pump, effectively reducing the overall size of the heating pump, freeing up more space for the arrangement of other components in the dishwasher, and significantly improving the versatility of the heating pump in different models of dishwashers. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0020] Figure 1 A schematic diagram of an embodiment of the integrated heating pump provided by this utility model;
[0021] Figure 2 An exploded structural diagram of an embodiment of the integrated heating pump provided by this utility model;
[0022] Figure 3 A cross-sectional structural schematic diagram of an embodiment of the integrated heating pump provided by this utility model;
[0023] Figure 4 A cross-sectional structural diagram of the upper pump housing position of an embodiment of the integrated heating pump provided by this utility model.
[0024] Figure 5 A schematic diagram of the heating assembly of an embodiment of the integrated heating pump provided by this utility model;
[0025] Figure 6 A partially exploded structural diagram of an embodiment of the integrated heating pump provided by this utility model;
[0026] Figure 7 A schematic diagram of the upper pump housing structure of an embodiment of the integrated heating pump provided by this utility model.
[0027] Explanation of icon numbers:
[0028] 10. Pump body; 10a. Pump chamber; 10b. Inlet; 10c. Outlet; 11. First mounting hole; 12. Second mounting hole; 13. Third mounting hole; 14. Upper pump casing; 15. Lower pump casing; 16. Sealing ring; 17. Inlet pipe; 18. Outlet pipe; 20. Motor; 30. Impeller; 40. Heating assembly; 41. Heating tube; 411. Circular arc segment; 412. Straight segment; 42. Fuse; 43. Heat-conducting sleeve; 50. Mounting plate; 60. Heat-conducting cover; 70. Thermostat.
[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0033] The heating tubes in commonly used heat pumps in this field are quite long, resulting in a long heat pump. In the limited internal space of a dishwasher, an excessively long heat pump will conflict with the spatial layout of other components, severely limiting the rational arrangement of other components and reducing the efficiency of internal space utilization in the dishwasher.
[0034] This utility model proposes an integrated heating pump.
[0035] Please see Figures 1 to 5As shown, in one embodiment of this utility model, the integrated heating pump mainly consists of a pump body 10, a motor 20, an impeller 30, and a heating component 40. The pump body 10 forms a pump chamber 10a, and is equipped with an inlet 10b and an outlet 10c. The inlet 10b and outlet 10c are used for water input and output, respectively, forming a basic channel for connection with the dishwasher's water system. The motor 20 is mounted on the pump body 10, and its shaft passes through the pump body 10, providing power for the impeller 30. The impeller 30 is mounted on the shaft and is located inside the pump body 10. When the motor 20 drives the shaft to rotate, the impeller 30 rotates accordingly, pushing the water in the pump chamber 10a from the inlet 10b to the outlet 10c, thus realizing the pumping function.
[0036] The heating assembly 40, a key innovation of this application, includes a heating element 41, a fuse 42, and a heat-conducting sleeve 43. The heating element 41 is fixedly connected to the pump body 10, with its main portion located inside the pump chamber 10a. This layout allows for direct heating of the water flow within the pump chamber 10a, improving heating efficiency. The heat-conducting sleeve 43 is welded to the outside of the heating element 41, providing excellent heat conduction and protection. The fuse 42 is located inside the heat-conducting sleeve, sensing the temperature of the heating element 41 through the sleeve and being electrically connected in series with it. When the temperature of the heating element 41 rises abnormally, the fuse 42 quickly cuts off the circuit, preventing damage from overheating and ensuring the safe operation of the entire heating pump system. This design effectively controls the length of the heating pump while maintaining heating performance, significantly improving its spatial adaptability within the dishwasher compared to traditional long heating element 41 structures.
[0037] This application, by placing the fuse 42 outside the heating tube 41, avoids the problem of excessive length caused by the long heating tube 41 in traditional heat pumps, compared to the traditional solution of placing the fuse 42 on the heating tube 41. This effectively reduces the overall size of the heat pump, freeing up more space for the arrangement of other components inside the dishwasher and significantly improving the versatility of the heat pump in different models of dishwashers. The fuse 42 is electrically connected in series with the heating tube 41 through the heat-conducting sleeve 43, which can accurately sense the temperature of the heating tube 41. Once the temperature is abnormal, it quickly cuts off the circuit, effectively preventing the heating tube 41 from overheating and causing malfunctions or even safety hazards, improving the safety performance of the heat pump and ensuring the stable operation of the dishwasher. The coordinated design of the pump body 10, motor 20, impeller 30 and heating component 40 realizes efficient water pumping and heating functions. Driven by the motor 20, the impeller 30 pushes the water flow in the pump chamber 10a, and the heating tube 41 heats the water flow in time, ensuring that the dishwasher obtains water flow at a suitable temperature during the washing process, improving the washing effect and working efficiency of the dishwasher.
[0038] It should be noted that in this embodiment, the heating tube 41 contains a heating wire and a filler. When energized, the heating wire generates heat to heat the fluid flowing through the pump chamber 10a. The filler fills the remaining space inside the heating tube 41, serving to fix the heating wire, provide insulation, and assist in heat conduction. Specifically, the heating wire is made of a nickel-chromium alloy, which has high resistivity, good high-temperature resistance, and oxidation resistance. This alloy can maintain stable heating efficiency under prolonged energization and is not easily oxidized or corroded, extending the service life of the heating wire. When current passes through the heating wire, the heating wire generates heat due to resistance. This heat is conducted through the filler to the wall of the heating tube 41, thereby heating the fluid in the pump chamber 10a. The filler is high-purity magnesium oxide powder, which fills the remaining space inside the heating tube 41, completely encasing the heating wire. Magnesium oxide has excellent insulation properties, effectively preventing leakage between the heating wire and the wall of the heating tube 41, ensuring safe operation. Simultaneously, it has high thermal conductivity, rapidly conducting the heat generated by the heating wire to the wall of the heating tube 41, improving heating efficiency. In addition, the magnesium oxide powder forms a stable support structure inside the heating tube 41, fixing the position of the heating wire and preventing the heating wire from shifting or deforming when impacted by fluid flow or vibrating the pump body 10, thus ensuring the stability and reliability of the heating process.
[0039] Furthermore, the heating tube 41 includes an arc segment 411 and two straight segments 412 connected to the arc segment 411. The arc segment 411 is located outside the impeller 30, and the straight segments 412 extend outward from the pump body 10; one end of the heat-conducting sleeve 43 is welded to the arc segment 411, and the other end extends outward from the pump body 10.
[0040] Specifically, the heating tube 41 includes an arc segment 411 and two straight segments 412. The arc segment 411 is located on the outside of the impeller 30. This arrangement can fully utilize the turbulence effect generated by the water flow driven by the rotation of the impeller 30, allowing the heating tube 41 to have more sufficient contact with the water flow and enhancing the heating effect. The straight segments 412 extend outward and out of the pump body 10. This design facilitates the connection of the heating tube 41 to the external circuit and, while ensuring the heating function, facilitates the fixation of the heating tube 41. A heat-conducting sleeve 43 adapted to the heating tube 41 is welded to the arc segment 411 at one end and extends outward from the pump body 10 at the other end. The end welded to the arc segment 411 is in close contact with the heating tube 41, ensuring that heat can be efficiently transferred to the fuse 42 inside the heat-conducting sleeve 43, allowing the fuse 42 to promptly sense the temperature of the heating tube 41. The outwardly extending part is used to fix the heating tube 41 in the straight segment 412 to ensure the stable and safe operation of the entire heating assembly 40.
[0041] Furthermore, the integrated heating pump also includes a mounting plate 50, which is mounted on the pump body 10 and is used to fix the upper ends of the heating tube 41 and the heat-conducting sleeve 43.
[0042] Specifically, in this embodiment, the mounting plate 50 cooperates with the pump body 10 to further fix the heating tube 41 and the heat-conducting tube. The mounting plate 50 is installed on the pump body 10, and the position of the pump body 10 corresponds to that of the mounting plate 50. This is used to stably assemble the mounting plate 50, achieving a tight connection between the mounting plate 50 and the pump body 10, ensuring that the two form a stable whole during the operation of the heating pump. The main function of the mounting plate 50 is to fix the upper ends of the heating tube 41 and the heat-conducting sleeve 43. When the straight section 412 of the heating tube 41 extends outward and protrudes from the pump body 10, and when the heat-conducting sleeve 43 follows the extension of the heating tube 41 to the corresponding position, the mounting plate 50, through its own structural design, forms a constraint and support for the upper ends of the heating tube 41 and the heat-conducting sleeve 43. It limits the possible vertical displacement of the heating tube 41 and the heat-conducting sleeve 43, preventing the heating tube 41 and the heat-conducting sleeve 43 from shaking or shifting due to factors such as vibration and water flow impact during equipment operation, thereby ensuring the stable operation of the heating component 40.
[0043] The mounting plate 50, by securing the upper ends of the heating element 41 and the heat-conducting sleeve 43, significantly enhances the overall stability of the heating assembly 40. During operation, especially in the complex working environment of a dishwasher, the impact of water flow and the machine's own vibrations are frequent. Without the mounting plate 50, the heating element 41 and the heat-conducting sleeve 43 might shift due to these external forces. This would not only affect the heating effect of the heating element 41 on the water flow, leading to uneven heating, but also potentially affect the fit between the heat-conducting sleeve 43 and the heating element 41, reducing the accuracy of the fuse 42's temperature sensing of the heating element 41, and consequently affecting the safety protection function of the entire heating pump. The mounting plate 50 effectively prevents these problems, ensuring that the heating assembly 40 can continuously and stably perform its heating and temperature monitoring functions.
[0044] Furthermore, the pump body 10 includes an upper pump housing 14, a lower pump housing 15, and a sealing ring 16. The upper pump housing 14 and the lower pump housing 15 are assembled to form a pump cavity 10a, and the sealing ring 16 is disposed at the connection between the upper pump housing 14 and the lower pump housing 15.
[0045] Specifically, the pump body 10, as a key component of the heating pump, consists of an upper pump housing 14, a lower pump housing 15, and a sealing ring 16. The upper pump housing 14 and the lower pump housing 15 are assembled together to form a pump chamber 10a that accommodates the fluid, providing a spatial basis for pumping and heating the water flow. The design of the upper pump housing 14 and the lower pump housing 15 fully considers the internal structural layout of the heating pump and the compatibility requirements with other components. Their assembly ensures that the pump chamber 10a has good sealing performance and structural stability.
[0046] The sealing ring 16 plays a crucial sealing role, located at the connection between the upper pump housing 14 and the lower pump housing 15. During the operation of the heater pump, the fluid in the pump chamber 10a flows at high speed driven by the impeller 30, while the heating tube 41 heats the fluid. At this time, the pump chamber 10a is in a high-pressure and high-temperature environment. The sealing ring 16, with its elasticity and sealing properties, tightly fits the connection surface of the upper and lower pump housings 15, effectively preventing fluid leakage from the connection. Without the sealing ring 16, the fluid in the pump chamber 10a may leak out, leading to a decrease in the pumping efficiency of the heater pump, affecting the normal water supply to the dishwasher. Furthermore, the leaked hot water may damage other internal components of the dishwasher, or even cause safety issues. In addition, good sealing performance helps maintain stable pressure within the pump chamber 10a, ensuring that the impeller 30 can efficiently drive the water flow, allowing the heating tube 41 to fully contact the water flow, improving heating efficiency, and thus ensuring that the heater pump can stably and efficiently provide the dishwasher with water at a suitable temperature, meeting the dishwasher's cleaning needs.
[0047] Furthermore, an inlet pipe 17 is integrally provided on the upper end of the upper pump housing 14, and an outlet pipe 18 is integrally provided on the circumferential side of the upper pump housing 14. The inlet 10b is located inside the inlet pipe 17, and the outlet 10c is located inside the outlet pipe 18.
[0048] In this embodiment, an inlet pipe 17 is integrally formed at the upper end of the upper pump housing 14. This integral design makes the connection between the inlet pipe 17 and the upper pump housing 14 more stable, reducing the risk of leakage that may occur due to splicing or assembly. The inlet pipe 17 provides a dedicated channel for external water to enter the pump chamber 10a, and the inlet 10b is located inside the inlet pipe 17, precisely guiding the water flow into the pump chamber 10a in an orderly manner. At the same time, an outlet pipe 18 is integrally formed on the circumferential side of the upper pump housing 14, and the outlet 10c is located inside the outlet pipe 18. The outlet pipe 18 is responsible for delivering the heated and pumped water to the subsequent water system of the dishwasher for dishwashing and other tasks. The integrally formed outlet pipe 18 also has the advantages of a stable structure and good sealing performance, ensuring that the water can be output smoothly under high pressure and high temperature conditions, and avoiding leakage or pressure loss during water delivery. The reasonable layout of the inlet pipe 17 and outlet pipe 18, together with the rotation of the impeller 30 in the pump chamber 10a, forms a smooth water circulation path, optimizes the working process of the heating pump, further improves the working efficiency and stability of the heating pump, and ensures that the dishwasher can continuously obtain the required water supply.
[0049] Please refer to Figure 6 and Figure 7 As shown, the pump body 10 further has a plurality of first mounting holes 11 and a plurality of second mounting holes 12 at the position corresponding to the mounting plate 50. The plurality of first mounting holes 11 are used for the heating tube 41 and the heat-conducting sleeve 43 to pass through, and the plurality of second mounting holes 12 are used to lock the mounting plate 50.
[0050] Specifically, multiple first mounting holes 11 and multiple second mounting holes 12 are provided at the corresponding positions of the pump body 10 and the mounting plate 50, which are key nodes for establishing a close connection between the two. The first mounting holes 11 are precisely positioned to match the outward extension path of the straight section 412 of the heating pipe 41 and the following extension path of the heat-conducting sleeve 43, thus establishing a basic channel for the heating pipe 41 and the heat-conducting sleeve 43 to pass through the pump body 10 and cooperate with the mounting plate 50. When the heating pipe 41 and the heat-conducting sleeve 43 extend from inside the pump cavity 10a through the first mounting holes 11 as designed, it creates conditions for the subsequent fixing of them by the mounting plate 50. The second mounting holes 12 are distributed around the perimeter where the pump body 10 and the mounting plate 50 fit together. Their function is to receive bolts and other connecting parts after the heating pipe 41 and the heat-conducting sleeve 43 have passed through the first mounting holes 11 and completed initial positioning. These connectors securely lock the mounting plate 50 onto the pump body 10, making the mounting plate 50 and the pump body 10 tightly connected. During the operation of the heating pump, they form a stable whole and jointly resist external interference from water flow impact, machine vibration, etc.
[0051] Furthermore, the pump body 10 also has a third mounting hole 13 at the position corresponding to the mounting plate 50. The integrated heating pump also includes a heat-conducting cover 60 and a thermostat 70. The heat-conducting cover 60 is disposed on the third mounting hole 13 and extends into the pump body 10 to contact the fluid inside the pump body 10. The thermostat 70 is mounted on the mounting plate 50, and a part of the thermostat 70 is located inside the heat-conducting cover 60.
[0052] Specifically, in this embodiment, the thermostat 70 is mounted on the mounting plate 50, with a portion of it located within the heat-conducting cover 60. This arrangement allows the thermostat 70 to sense the fluid temperature inside the pump body 10 via the heat-conducting cover 60. When the fluid temperature inside the pump body 10 changes, heat is conducted to the thermostat 70 via the heat-conducting cover 60. The thermostat 70 then performs control operations based on the sensed temperature, such as adjusting the heating power of the heating element 41, to maintain the fluid temperature inside the pump body 10 within a suitable range. This achieves more precise temperature control and monitoring of the heating pump, preventing adverse effects on the dishwasher's cleaning performance and the equipment itself due to abnormal temperatures, and improving the performance of the heating pump and the working quality of the dishwasher.
[0053] Furthermore, the thermostat 70, fuse 42, and heating element 41 are electrically connected in series.
[0054] Specifically, in this embodiment, the thermostat 70, fuse 42, and heating element 41 are connected in series to form a closely linked electrical circuit. When the heating pump is powered on and starts working, the current flows sequentially through the thermostat 70, fuse 42, and heating element 41. The thermostat 70 plays a crucial role in intelligent regulation based on its real-time monitoring of the fluid temperature inside the pump body 10. If the fluid temperature inside the pump body 10 is within the normal set range, the thermostat 70 remains open, allowing the current to flow smoothly and enabling the heating element 41 to continuously heat the fluid at a predetermined power. Once the fluid temperature exceeds the preset safety limit, the sensing element inside the thermostat 70 reacts quickly, its internal contacts open, cutting off the circuit and preventing the current from continuing to flow to the heating element 41. The heating element 41 then stops heating, thereby preventing damage to the equipment or potential safety hazards due to excessive temperature.
[0055] Fuse 42 is also connected in series in this circuit as another layer of safety. It is extremely sensitive to temperature changes in the heating element 41, sensing the temperature of the heating element 41 through the heat-conducting sleeve 43. Under normal circumstances, fuse 42 remains conductive and does not affect the operation of the circuit. However, if the heating element 41 experiences abnormal temperature rise due to malfunction or other reasons, when the temperature reaches the melting threshold of fuse 42, the fusible element inside fuse 42 will quickly melt and completely cut off the circuit. Even if the temperature controller 70 fails to activate in time for some reason, fuse 42 can ensure that the heating element 41 immediately stops heating, avoiding dangerous situations.
[0056] This electrical series connection method greatly enhances the safety and stability of the heat pump. Multiple protection mechanisms work together to effectively reduce the risk of equipment damage and fire caused by temperature runaway, ensuring reliable operation of the heat pump under various complex conditions and providing stable and safe heating for the dishwasher. Simultaneously, through real-time adjustment by the thermostat 70, the heat pump can precisely control its heating power according to actual needs, improving energy efficiency and optimizing the dishwasher's cleaning effect.
[0057] This utility model also proposes a dishwasher, which includes the integrated heating pump described above. The specific structure of the integrated heating pump is as described in the above embodiments. Since this dishwasher adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.
[0058] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. An integrated heat pump for a dishwasher, characterized in that, include: A pump body, wherein a pump cavity is formed within the pump body, and the pump body includes an inlet and an outlet; An electric motor connected to the pump body, with its shaft passing through the pump body; and an impeller located inside the pump body and mounted on the shaft. A heating assembly includes a heating tube, a fuse, and a heat-conducting sleeve. The heating tube is fixedly connected to the pump body and is located inside the pump cavity. The heat-conducting sleeve is welded to the heating tube. The fuse is disposed inside the heat-conducting sleeve. The fuse senses the temperature of the heating tube through the heat-conducting sleeve and is electrically connected in series with the heating tube.
2. The integrated heating pump as described in claim 1, characterized in that, The heating tube includes an arc segment and two straight segments connected to the arc segment; the arc segment is located outside the impeller, and the straight segments extend out of the pump body; one end of the heat-conducting sleeve is welded to the arc segment, and the other end extends out of the pump body.
3. The integrated heating pump as described in claim 2, characterized in that, The integrated heating pump also includes a mounting plate, which is mounted on the pump body and is used to fix the heating tube and the end of the heat-conducting sleeve away from the arc segment.
4. The integrated heating pump as described in claim 3, characterized in that, The pump body has multiple first mounting holes and multiple second mounting holes at the position corresponding to the mounting plate. The multiple first mounting holes are used for the heating tube and the heat-conducting sleeve to pass through, and the multiple second mounting holes are used to lock the mounting plate.
5. The integrated heating pump as described in claim 4, characterized in that, The pump body also has a third mounting hole at the position corresponding to the mounting plate. The integrated heating pump also includes a heat-conducting cover and a temperature controller. The heat-conducting cover is located in the third mounting hole and extends into the pump body to contact the fluid inside the pump body. The thermostat is mounted on the mounting plate, and a portion of the thermostat is located inside the heat-conducting cover.
6. The integrated heating pump as described in claim 5, characterized in that, The temperature controller, the fuse, and the heating element are electrically connected in series.
7. The integrated heating pump as described in claim 6, characterized in that, The pump body includes an upper pump housing, a lower pump housing, and a sealing ring. The upper pump housing and the lower pump housing are assembled to form the pump cavity, and the sealing ring is disposed at the connection between the upper pump housing and the lower pump housing.
8. The integrated heating pump as described in claim 7, characterized in that, The upper end of the upper pump housing is integrally provided with a water inlet pipe, and the circumferential side of the upper pump housing is integrally provided with a water outlet pipe. The water inlet is located inside the water inlet pipe, and the water outlet is located inside the water outlet pipe.
9. The integrated heating pump as described in claim 8, characterized in that, The heating tube contains a heating wire and a filler. When the heating wire is energized, it generates heat to heat the fluid flowing through the pump chamber. The filler fills the remaining space inside the heating tube.
10. A dishwasher, characterized in that, Includes the integrated heating pump as described in any one of claims 1 to 9.