An integrated heat pump water heater
The integrated heat pump water heater, with its installation panel and split-shell design, solves the problems of unreasonable internal structure and inconvenient maintenance of existing heat pump water heaters, achieving efficient assembly and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GOMON NEW ENERGY TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-21
AI Technical Summary
The internal structure of existing heat pump water heaters is not reasonable enough, making maintenance inconvenient and assembly inefficient.
The assembly is achieved using an installation panel, which is then transferred to the water tank as a whole. The modular housing design includes a compressor, a four-way valve, an electronic expansion valve, an evaporator, and a centrifugal fan. These components are combined with a cylindrical water tank shell and component shells, and are connected by bolts and welding to ensure stability and ease of disassembly.
It increases assembly space, enhances production efficiency, and facilitates installation, use, and subsequent inspection and maintenance.
Smart Images

Figure CN224534496U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water heaters, specifically relating to an integrated heat pump water heater. Background Technology
[0002] Heat pump water heaters, also known as air source heat pump water heaters, operate on a principle similar to air conditioners. They use a small amount of electricity to drive a compressor. High-pressure liquid refrigerant evaporates into a gaseous state in the evaporator after passing through an expansion valve, absorbing a large amount of heat energy from the air. The gaseous refrigerant is then compressed by the compressor into a high-temperature, high-pressure liquid state, which then enters the condenser to release heat and heat the water. This cycle continues continuously. However, heat pump water heaters have an inefficient internal structure and are difficult to maintain.
[0003] To address the above shortcomings, there is a need for an integrated heat pump water heater that can be assembled using an installation panel and then transferred as a whole to the water tank. This design allows for ample assembly space, high production efficiency, and the upper casing can be separated front and back for easy installation, use, and subsequent inspection and maintenance. Utility Model Content
[0004] The purpose of this utility model is to provide an integrated heat pump water heater, which can be assembled by means of an installation plate and then transferred as a whole to the water tank. It has a large assembly space, high production efficiency, and the shell is easy to separate, making it convenient for installation, use, and subsequent inspection and maintenance.
[0005] This utility model provides the following technical solution:
[0006] An integrated heat pump water heater includes an installation plate. On one side of the installation plate are a compressor, a four-way valve, an electronic expansion valve, an evaporator, and a centrifugal fan that works in conjunction with each other. On the other side of the installation plate is a water tank with an inlet, an outlet, and a water outlet. A heating pipe is wrapped around the outside of the water tank. The inlet of the heating pipe is connected to the electronic expansion valve, and the outlet of the electronic expansion valve is connected to the compressor through the four-way valve.
[0007] The mounting plate has a cylindrical water tank shell and a component shell on each side. The mounting plate is connected to the water collection tray, and the edge of the water collection tray is connected to the inner ring of the water tank shell.
[0008] The component housing has a side-opening structure and is composed of two semi-circular cross-sections: a first cover and a second cover. The ends of the first cover and the second cover are connected to the ends of the water tank housing, and the edges of the first cover and the second cover are connected to each other.
[0009] Preferably, the first cover has symmetrical countersunk holes on both sides, and the second cover has symmetrical fixing posts on the inner edge. The countersunk holes and the fixing posts are connected by bolts, and the ends of the fixing posts abut against the ends of the water tank shell.
[0010] Preferably, the two sides of the first cover are also provided with cover plates for covering the gap between the first cover and the second cover.
[0011] Preferably, the inner sides of the first and second covers are provided with a limiting block that is integrally right-angled, and the end of the limiting block abuts against the end of the water tank shell.
[0012] Preferably, a reinforcing column is provided on the water collection pan, the reinforcing column is located between the countersunk hole and the fixed column, and bolts connect the countersunk hole, the reinforcing column and the fixed column.
[0013] Preferably, the second cover is provided with an air inlet and an air outlet for air intake and exhaust, respectively.
[0014] Preferably, the water collection tray is connected to a water discharge pipe, which is led out from inside the water tank shell;
[0015] Preferably, the water tank shell is also provided with a mounting bracket, a control panel and a power supply cable; and the end of the water tank shell is sealed by a cover plate, with the end of the water tank connected to the cover plate.
[0016] The beneficial effects of this utility model are:
[0017] This invention achieves assembly through an installation plate and adopts a split shell design, which not only facilitates assembly but also allows the components to be protected by separate front and rear shells, making installation, use, and subsequent inspection and maintenance convenient. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1 This is an overall diagram of the device;
[0020] Figure 2 This is a bottom view of the device;
[0021] Figure 3 This is a component structure diagram;
[0022] Figure 4 Internal structure diagram;
[0023] Figure 5 This is a diagram of the component shell structure;
[0024] Figure 6 Assembly structure diagram for component housing and water tank housing;
[0025] Figure 7 Assembly structure diagram for the water collection tray and mounting tray;
[0026] Figure 8 This is an assembly structure diagram of the water tank and cover plate.
[0027] In the figure, the markings are as follows: 1. water tank shell; 2. first cover shell; 3. second cover shell; 4. compressor; 5. four-way valve; 6. evaporator; 7. centrifugal fan; 8. electronic expansion valve; 9. heating pipeline; 10. mounting plate; 11. water accumulation tray; 12. water inlet; 13. water outlet; 14. water accumulation discharge pipe; 15. water tank; 16. counterbore; 17. fix; 18. covering plate; 19. limit block; 20. strengthening column; 21. air inlet; 22. air outlet; 23. cover plate; 24. mounting bracket; 25. control panel; 26. cable. Specific embodiments
[0028] As Figures 1 to 8 , an integrated heat pump water heater includes a mounting plate 10. For the specific structure of the mounting plate 10, refer to the appendix Figure 7 . On one side of the mounting plate 10, there are a compressor 4, a four-way valve 5, an electronic expansion valve 8, an evaporator 6, and a centrifugal fan 7 that cooperate with each other. Traditional bolts can be used for fixation. The specific fixation method and working principle are well-known in the industry and will not be elaborated here. The arrangement method can be seen in the appendix Figure 3 and 4 to ensure a reasonable layout, make full use of space, and facilitate miniaturization of the volume;
[0029] On the other side of the mounting plate 10, there is a water tank 15. The shape of the water tank 15 can adopt a traditional structure. The water tank 15 is provided with a water inlet 12 and a water outlet 13 for water inlet and outlet. At the same time, a heating pipeline 9 is wound around the outside of the water tank 15. For the specific structure, refer to the appendix Figure 4 ; and the inlet of the heating pipeline 9 is connected to the electronic expansion valve 8, and the outlet of the electronic expansion valve 8 is connected to the compressor 4 through the four-way valve 5. Through the compressor 4, four-way valve 5, electronic expansion valve 8, evaporator 6, and centrifugal fan 7 that cooperate with each other, heat energy is generated to heat the water tank through the heating pipeline 9. The above is the existing principle technology and will not be elaborated further. Different from the existing technology, on both sides of the mounting plate 10 of the present invention, there are respectively a cylindrical water tank shell 1 and a component shell. The mounting plate 10 is connected to the water accumulation tray 11. For the connection structure between the mounting plate 10 and the water accumulation tray 11, refer to the appendix Figure 7 , fixed by bolts. The curled edge structure of the mounting plate 10 makes there be a certain sandwich space between the mounting plate 10 and the water accumulation tray 11, and the edge of the water accumulation tray 11 is connected to the inner ring of the water tank shell 1; refer to the appendix Figure 6 and 7 . The water accumulation tray 11 is provided with a curled edge structure, and is fixed to the inner ring of the water tank shell 1 through the curled edge structure and bolts in cooperation. Combining with the display in the appendix Figure 6 and 7 , those skilled in the art can easily achieve this connection.
[0030] Due to its complex structure, please refer to the appendix for a more intuitive understanding of the device's structure. Figure 5 The component housing has a side-opening structure and consists of two semi-circular cross-sections: a first cover 2 and a second cover 3. The ends of the first cover 2 and the second cover 3 are connected to the ends of the water tank housing 1, and their edges are interconnected. The first cover 2 has symmetrically arranged countersunk holes 16 on both sides; the specific structure of these countersunk holes 16 is detailed in the appendix. Figure 5 The second cover 3 has symmetrically arranged fixing posts 17 on its inner edge. The fixing posts 17 are welded to the second cover 3, integrally formed, or otherwise reliably connected. The countersunk hole 16 is connected to the fixing post 17 by bolts, and the end of the fixing post 17 abuts against the end of the water tank shell 1 to improve stability. See Appendix for details. Figure 6 The first cover 2 is also provided with cover plates 18 on both sides to cover the joint between the first cover 2 and the second cover 3, improving aesthetics and connection reliability. The cover plates 18 are strip-shaped, see appendix for details. Figure 2 and attached Figure 5 .
[0031] See appendix Figure 5 and 6 The inner sides of the first cover 2 and the second cover 3 are provided with a right-angled limiting block 19. The connection method can be welding, integral molding, or other reliable connection methods. The end of the limiting block 19 abuts against the end of the water tank shell 1. The split shell design facilitates assembly and allows the component protective shells to be separated front and back, which facilitates installation, use, and subsequent inspection and maintenance.
[0032] See appendix Figure 6 and 7 A reinforcing post 20 is provided on the water collection pan 10. The reinforcing post 20 is located between the countersunk hole 16 and the fixed post 17. Bolts connect the countersunk hole 16, the reinforcing post 20, and the fixed post 17 to further improve the connection reliability. See Appendix Figure 6 The second housing 3 is provided with an air inlet 21 and an air outlet 22 for air intake and exhaust, respectively. The air outlet 22 is located outside the outlet of the centrifugal fan 7 to ensure efficient air output. See Appendix. Figure 2 and 4 The water collection tray 11 is connected to a water discharge pipe 14, which is led out from inside the water tank shell 1, improving the rationality and aesthetics of the layout.
[0033] See Figure 2 and 8The water tank shell 1 is also equipped with a mounting bracket 24, which is connected to the water tank 15 via reinforcing ribs to improve the reliability of the connection. It also includes a control panel 25 and a power supply cable 26. The end of the water tank shell 1 is sealed by a cover plate 23, and the end of the water tank 15 is connected to the cover plate 23. To further improve the reliability of the connection, the connection between the end of the water tank 15 and the cover plate 23 can be achieved using a conventional connection method.
[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An integrated heat pump water heater, characterized in that: The device includes an installation panel, on one side of which are a compressor, a four-way valve, an electronic expansion valve, an evaporator, and a centrifugal fan that works in conjunction with each other; on the other side of the installation panel is a water tank with inlet, outlet and outlet, and heating pipes are wrapped around the outside of the water tank; the inlet of the heating pipes is connected to the electronic expansion valve, and the outlet of the electronic expansion valve is connected to the compressor through the four-way valve. The mounting plate has a cylindrical water tank shell and a component shell on each side. The mounting plate is connected to the water collection tray, and the edge of the water collection tray is connected to the inner ring of the water tank shell. The component housing has a side-opening structure and is composed of two semi-circular cross-sections: a first cover and a second cover. The ends of the first cover and the second cover are connected to the ends of the water tank housing, and the edges of the first cover and the second cover are connected to each other.
2. The integrated heat pump water heater according to claim 1, characterized in that: The first cover has symmetrical countersunk holes on both sides, and the second cover has symmetrical fixing posts on the inner edge. The countersunk holes and the fixing posts are connected by bolts, and the ends of the fixing posts abut against the ends of the water tank shell.
3. The integrated heat pump water heater according to claim 2, characterized in that: The first cover also has cover plates on both sides to cover the gap between the first cover and the second cover.
4. The integrated heat pump water heater according to claim 3, characterized in that: The inner sides of the first and second covers are provided with a limiting block that is integrally right-angled, and the end of the limiting block abuts against the end of the water tank shell.
5. The integrated heat pump water heater according to claim 4, characterized in that: A reinforcing column is installed on the water collection pan. The reinforcing column is located between the countersunk hole and the fixed column. Bolts connect the countersunk hole, the reinforcing column, and the fixed column.
6. The integrated heat pump water heater according to claim 5, characterized in that: The second cover is equipped with an air inlet and an air outlet for air intake and exhaust, respectively.
7. An integrated heat pump water heater according to claim 6, characterized in that: The water collection tray is connected to a water discharge pipe, which is led out from inside the water tank shell.
8. An integrated heat pump water heater according to claim 7, characterized in that: The water tank shell is also equipped with a mounting bracket, a control panel, and cables for power supply; and the end of the water tank shell is sealed by a cover plate, with the end of the water tank connected to the cover plate.