Heat pump water machine and heat pump system

Abstract

The utility model provides a kind of heat pump water machine and heat pump system, it is related to heat pump technical field.The heat pump water machine includes casing, electric control box, waterway structure and water tank are sequentially arranged in casing along first horizontal direction, waterway structure includes water delivery pipeline and is located at the electric device of water delivery pipeline, water delivery pipeline is communicated in water tank, electric device is connected in electric control box.The heat pump system includes heat pump host computer, end device and above-mentioned heat pump water machine, the waterway structure of heat pump water machine is communicated in heat pump host computer, the water tank of heat pump water machine is communicated in end device.The structure of the heat pump water machine is higher, barycenter is lower, overall volume is small, use flexible and higher stability.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, and more specifically, to a heat pump water heater and a heat pump system. Background Technology

[0002] A heat pump unit connects to terminal devices via the water circuit structure of a heat pump water heater to form a heat pump system. The heat pump unit moves heat from a lower heat source to a higher heat source, and then supplies heat to terminal devices such as domestic water tanks, air conditioners, underfloor heating, and radiator systems through the heat pump water heater. A water tank is typically installed between the water circuit structure of the heat pump water heater and the terminal devices to buffer and regulate the water flow. In some related technologies, the heat pump water heater and water tank are relatively independent, requiring connection between the water tank and the water circuit structure during use, which is cumbersome and prone to leakage. While some heat pump water heaters integrate the water tank and water circuit structure, they are generally larger in size, less flexible in use, and less stable. Utility Model Content

[0003] The purpose of this utility model is to provide a heat pump water machine and heat pump system to solve the technical problems in related technologies where some heat pump water machines integrate the water tank and water circuit structure, but the overall size of the heat pump water machine is large, the flexibility of use is poor, and the stability is poor.

[0004] To solve the above problems, this utility model provides a heat pump water heater, including a housing. Inside the housing, an electrical control box, a water circuit structure, and a water tank are arranged sequentially along a first horizontal direction. The water circuit structure includes a water supply pipe and electrical components disposed on the water supply pipe. The water supply pipe is connected to the water tank, and the electrical components are connected to the electrical control box.

[0005] In the heat pump water heater provided by this utility model, the electrical control box, water circuit structure, and water tank are arranged inside the casing along a first horizontal direction. This improves the load-bearing stability of the casing on the water tank, water circuit structure, and electrical control box, lowers the center of gravity of the overall heat pump water heater, and reduces the likelihood of the casing tipping over due to its height, which could lead to pipe connection cracking or even disconnection. Furthermore, the water circuit structure is at a similar height to the water tank and electrical control box, and is adjacent to both. The connection path between the water supply pipes in the water circuit structure and the water tank is shorter, and the connection is more convenient. At the same time, the connection path between the electrical components in the water circuit structure and the wires in the electrical control box is shorter, and the connection is more convenient. Consequently, the integration and structural compactness of the water tank, water circuit structure, and electrical control box are higher, resulting in a smaller heat pump water heater that is more flexible in transportation and installation. In addition, the electrical control box is located near the edge along the first horizontal direction. During later use, the side panel adjacent to the electrical control box can be removed for convenient inspection and maintenance of the electrical control box and its internal water circuit structure, thereby improving the maintenance convenience of the heat pump water heater.

[0006] Optionally, the housing is a cuboid, and the length direction of the housing is the first horizontal direction.

[0007] Optionally, the water supply pipeline includes a hot water pipeline and a cold water pipeline. The side wall of the upper tank is provided with a hot water connector, and the side wall of the lower tank is provided with a cold water connector. One end of the hot water pipeline is connected to the hot water connector, and the other end extends upwards out of the top plate of the casing. One end of the cold water pipeline is connected to the cold water connector, and the other end extends upwards out of the top plate.

[0008] Optionally, the housing is a cuboid, and the electrical control box, the water circuit structure and the water tank are arranged sequentially along the length of the housing. The two side plates of the housing along its width are respectively the first side plate and the second side plate.

[0009] Along the width direction of the housing, the hot water connector is close to the first side plate and away from the second side plate; the hot water pipe includes a first bending section, a first installation section and a first extension section in sequence, one end of the first bending section is connected to the hot water connector and the other end extends toward the second side plate, and the first installation section is provided with an electric heater;

[0010] And / or, along the width direction of the housing, the cold water connector is close to the first side plate and away from the second side plate; the cold water pipeline sequentially includes a second bend section, a second mounting section and a second extension section, one end of the second bend section is connected to the cold water connector and the other end extends toward the second side plate, and the second mounting section is equipped with a water pump.

[0011] Optionally, the hot water connector and the cold water connector are inclined toward the first side plate along an extension direction away from the water tank.

[0012] Optionally, the axis of the hot water connector is aligned with the radial direction of the water tank, and the horizontal angle between the axis of the hot water connector and the length direction of the housing is in the range of 20° to 30°.

[0013] And / or, the axis of the cold water connector is aligned with the radial direction of the water tank, and the horizontal angle between the axis of the cold water connector and the length direction of the casing is in the range of 20° to 30°.

[0014] Optionally, along the height direction of the housing, the electrical control box is arranged close to the top plate, and a lower receiving cavity is formed between the electrical control box and the bottom plate of the housing; the water pump is adjacent to the lower receiving cavity, and the pump body of the water pump faces the lower receiving cavity.

[0015] Optionally, the housing includes a receiving housing with an opening on one side forming an access port and an access panel that can be removably covered by the access port, the access panel being adjacent to the electrical control box.

[0016] Optionally, one side edge of the electrical control box is hinged to the corresponding edge of the access port.

[0017] Optionally, the inspection panel is equipped with a wired controller, which is electrically connected to the electrical control box via a wire.

[0018] This utility model also provides a heat pump system, including a heat pump host, a terminal device, and the aforementioned heat pump water heater, wherein the water circuit structure of the heat pump water heater is connected to the heat pump host, and the water tank of the heat pump water heater is connected to the terminal device.

[0019] The heat pump system provided by this utility model adopts the above-mentioned heat pump water machine and includes all the beneficial effects of the heat pump water machine, which will not be repeated here. Attached Figure Description

[0020] 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 embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 A flow diagram of the heat pump system provided by this utility model;

[0022] Figure 2 This is a front view of the heat pump water heater provided by this utility model;

[0023] Figure 3 Axonometric drawing of the heat pump water heater provided by this utility model;

[0024] Figure 4 The front view of the heat pump water heater provided by this utility model after removing the maintenance panel;

[0025] Figure 5 A schematic diagram showing the removal and maintenance panel of the heat pump water heater provided by this utility model, with the electrical control box rotated open;

[0026] Figure 6 The internal top view of the heat pump water heater provided by this utility model shows that the internal space of the casing is divided into a first accommodating cavity, a second accommodating cavity, and a third accommodating cavity along its length direction X.

[0027] Figure 7 The internal top view of the heat pump water heater provided by this utility model shows that the internal space of the casing is divided into a fourth accommodating cavity and a fifth accommodating cavity along its width direction Y.

[0028] Figure 8A schematic diagram of the water circuit structure and water tank connection in the heat pump water heater provided by this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 10-Heat pump main unit; 20-Heat pump water unit; 30-Terminal device; 100-Casing; 110-First accommodating cavity; 120-Second accommodating cavity; 130-Third accommodating cavity; 131-Upper accommodating cavity; 132-Lower accommodating cavity; 140-Fourth accommodating cavity; 150-Fifth accommodating cavity; 100A-Interface; 160-Accommodating shell; 161-Inspection port; 170-Inspection panel; 181-Top plate; 182-Bottom plate; 183-Side panel; 183a-First side panel; 183b-Second side panel; 183c-Third side panel; 183d-Fourth side panel; 200-Water tank; 210- 220-Cold water connector; 230-Inlet connector; 240-Outlet connector; 300-Electrical control box; 310-After-sales connection area; 400-Water circuit structure; 410-Water supply pipeline; 411-Hot water pipeline; 411a-First bend section; 411b-First installation section; 411c-First extension section; 412-Cold water pipeline; 412a-Second bend section; 412b-Second installation section; 412c-Second extension section; 421-Electric heater; 422-Water pump; 423-Pressure gauge; 424-Target flow switch; 425-Safety valve; 500-Wired controller; 600-Fixing component. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0032] This embodiment provides a heat pump water heater 20, such as Figures 2-8 As shown, the device includes a housing 100. Inside the housing 100, an electrical control box 300, a water circuit structure 400, and a water tank 200 are arranged sequentially along a first horizontal direction. The water circuit structure 400 includes a water supply pipe 410 and electrical components disposed on the water supply pipe 410. The water supply pipe 410 is connected to the water tank 200, and the electrical components are connected to the electrical control box 300.

[0033] In the heat pump water heater 20 provided in this embodiment, the water tank 200 and the water circuit structure 400 are integrated into the casing 100. The water tank 200 and the water circuit structure 400 are already assembled and connected. During use, it is only necessary to connect the water circuit structure 400 to the heat pump host 10 and connect the inlet connector 230 and outlet connector 240 of the water tank 200 to the terminal device 30. There is no need to connect the pipes of the water tank 200 and the water circuit structure 400, thereby reducing the number of installation steps, reducing the complexity of installation, and reducing leakage problems caused by improper installation. This improves the ease of use, safety and stability of the heat pump water heater 20, and reduces after-sales maintenance. In addition, the water tank 200 and the water circuit structure 400 are integrated into the casing 100. Inside the casing 100, the positions of the two are relatively fixed. By moving the casing 100, the water tank 200 and the water circuit structure 400 can be moved synchronously, making the heat pump water heater 20 more convenient to transport and install. The connection stability between the water tank 200 and the water circuit structure 400 can be guaranteed, reducing the risk of water leakage caused by the connection between the water tank 200 and the water circuit structure 400 being easily broken during transportation when the water tank 200 is located outside the casing 100. In addition, along the first horizontal direction, the electrical control box 300 is arranged near the edge area. During later use, the side plate adjacent to the electrical control box 300 can be removed for convenient inspection and maintenance of the electrical control box 300 and its internal water circuit structure 400, thereby improving the maintenance convenience of the heat pump water heater 20.

[0034] At the same time, such as Figure 6 As shown, within the internal space of the casing 100, the space containing the water tank 200 is the first accommodating cavity 110, the space containing the water circuit structure 400 is the second accommodating cavity 120, and the space containing the electrical control box 300 is the third accommodating cavity 130. The third accommodating cavity 130, the second accommodating cavity 120, and the first accommodating cavity 110 are arranged sequentially along the first horizontal direction. This arrangement not only improves the load-bearing stability of the casing 100 on the water tank 200, the water circuit structure 400, and the electrical control box 300, but also lowers the center of gravity of the overall heat pump water heater 20, reducing the risk of tipping over due to the high height of the casing 100 and potential damage to the piping. The connection cracks or even breaks; and, the water circuit structure 400 is at a similar height to the water tank 200 and the electrical control box 300, and is adjacent to both the water tank 200 and the electrical control box 300. The connection path between the water supply pipe 410 in the water circuit structure 400 and the water tank 200 is shorter and the connection is more convenient. At the same time, the connection path between the electrical components in the water circuit structure 400 and the wires in the electrical control box 300 is shorter and the connection is more convenient. Correspondingly, the integration and structural compactness of the water tank 200, the water circuit structure 400 and the electrical control box 300 are higher, the heat pump water machine 20 is smaller, and its transportation and installation are more flexible.

[0035] Specifically, the water supply pipeline 410 of the water system structure 400 includes a cold water pipeline 412 for transporting cold water and a hot water pipeline 411 for transporting hot water, such as... Figure 1 As shown, the cold water pipe 412 may be equipped with electrical components such as a water pump 422 and a pressure gauge 423, and the hot water pipe 411 may be equipped with electrical components such as an electric heating element, a current switch 424 and a safety valve 425. The above electrical components can be wirelessly or wirelessly connected to the wiring terminals of the water module control board of the control box 300.

[0036] This embodiment also provides a heat pump system, such as Figure 1 As shown, it includes a heat pump host 10, a terminal device 30 and the aforementioned heat pump water heater 20. The water circuit structure 400 of the heat pump water heater 20 is connected to the heat pump host 10, and the water tank 200 of the heat pump water heater 20 is connected to the terminal device 30. Specifically, the water tank 200 is equipped with an inlet connector 230, an outlet connector 240, a cold water connector 220, and a hot water connector 210. The cold water connector 220 is connected to the cold water inlet side of the heat pump host 10 via a cold water pipe 412, the hot water connector 210 is connected to the hot water outlet side of the heat pump host 10 via a hot water pipe 411, the inlet connector 230 is connected to the cold water outlet side of the terminal device 30, and the outlet connector 240 is connected to the hot water inlet side of the terminal device 30. In use, the cold water outlet side of the terminal device 30 supplies cold water to the heat pump host 10 through the water tank 200 and the cold water pipe 412. After heat exchange, the cold water becomes hot water and is sent from the hot water outlet side of the heat pump host 10 through the hot water pipe 411 into the water tank 200, and then into the terminal device 30 to provide hot water. Specifically, the terminal device 30 can be a domestic water tank 200, an air conditioner, a floor heating system, a radiator assembly, etc.

[0037] The heat pump system uses the aforementioned heat pump water heater 20, and all the beneficial effects of the heat pump water heater 20 will not be elaborated here.

[0038] Specifically, in this embodiment, as Figures 2-6 As shown, the housing 100 is a cuboid, and its top plate 181 is rectangular. When the housing 100 is normally placed, its vertical direction is its height direction (Z-direction). Among the two adjacent edges of the top plate 181, the extension direction of the longer edge is its length direction (X-direction), and the extension direction of the shorter edge is its length direction (Y-direction). The length direction of the housing 100 is the aforementioned first horizontal direction, that is, the electrical control box 300, the water channel structure 400, and the water tank 200 are arranged sequentially along the length direction (X-direction) of the housing 100. Correspondingly, the third accommodating cavity 130, the second accommodating cavity 120, and the first accommodating cavity 110 are arranged sequentially along the length direction (X-direction) of the housing 100. The housing 100 is a regular cuboid, which makes processing easier and more precise. The positional accuracy of the water tank 200, the water channel structure 400, and the electrical control box 300 inside the housing 100 is higher, and the pipeline connection between the water channel structure 400 and the water tank 200 is easier and has better sealing.

[0039] In this embodiment, as Figures 2-8As shown, the upper side wall of the water tank 200 is provided with a hot water connector 210, and the lower side wall is provided with a cold water connector 220. One end of the hot water pipe 411 is connected to the hot water connector 210, and the other end of the hot water pipe 411 extends upwards out of the top plate 181 of the housing 100 to connect to the hot water outlet side of the heat pump host 10. One end of the cold water pipe 412 is connected to the cold water connector 220, and the other end of the cold water pipe 412 extends upwards out of the top plate 181 to connect to the cold water inlet side of the heat pump host 10. The ends of the cold water pipe 412 and the hot water pipe 411 used to connect to the heat pump host 10 are both located at the top plate 181, which makes the connection more convenient.

[0040] In this embodiment, as Figure 7 and Figure 8 As shown, the two side plates of the housing 100 along its width direction are the first side plate 183a and the second side plate 183b, respectively. The water tank 200 is located between the first side plate 183a and the second side plate 183b. The vertical plane passing through the axis of the water tank 200 and parallel to the first side plate 183a is defined as the interface 100A. The area of ​​the internal space of the housing 100 between the interface 100A and the first side plate 183a is the fourth accommodating cavity 140, and the area between the interface 100A and the second side plate 183b is the fifth accommodating cavity 150.

[0041] Along the width direction of the housing 100, the hot water connector 210 is close to the first side plate 183a and away from the second side plate 183b, that is, the hot water connector 210 is located in the fourth accommodating cavity 140; the hot water pipe 411 includes a first bending section 411a, a first mounting section 411b and a first extension section 411c in sequence. The first bending section 411a is located in the fourth accommodating cavity 140 and one end is connected to the hot water connector 210, and the other end extends toward the fifth accommodating cavity 150. The first mounting section 411b is located in the fifth accommodating cavity 150, and the first mounting section 411b is provided with an electric heater 421. Along the width direction of the housing 100, the cold water connector 220 is close to the first side plate 183a and away from the second side plate 183b, that is, the cold water connector 220 is located in the fourth accommodating cavity 140; the cold water pipe 412 includes a second bending section 412a, a second mounting section 412b and a second extension section 412c in sequence. The second bending section 412a is located in the fourth accommodating cavity 140 and one end is connected to the cold water connector 220, and the other end extends toward the fifth accommodating cavity 150. The second mounting section 412b is located in the fifth accommodating cavity 150, and the second mounting section 412b is equipped with a water pump 422.

[0042] Using the vertical plane passing through the axis of the water tank 200 and parallel to the first side plate 183a as the dividing interface 100A, the internal space of the housing 100 is divided into a fourth accommodating cavity 140 and a fifth accommodating cavity 150 arranged along the width direction of the housing 100. The hot water connector 210 and the first bending section 411a, as well as the cold water connector 220 and the second bending section 412a, used for connection are all arranged in the fourth accommodating cavity 140. The first mounting section 411b and the second mounting section 412b, used for installing larger electrical components such as the electric heater 421 and the water pump 422, are both arranged in the fifth accommodating cavity 150. By reasonably allocating the pipeline routing and the installation position of electrical components, a large installation and maintenance space is reserved for the installation of the electric heater 421 and the water pump 422, ensuring the installation of the electric heater 421 and the water pump 422 and improving the convenience of later maintenance of the device.

[0043] The electric heater 421 serves as an auxiliary heating element. When the heat pump unit 10's heating capacity meets requirements, the electric heater 421 is off. When the heat pump unit 10's heating capacity is insufficient, the electric heater 421 can be activated to provide auxiliary heating to the hot water flowing through the hot water pipe 411, thereby increasing the temperature of the hot water delivered to the terminal device 30. This improves the adjustability of the heat pump system and ensures the heating effect on the terminal device 30. The water pump 422 acts as a power source to drive the flow of water in the water supply pipe 410. The water pump 422 is located in the cold water pipe 412. While ensuring its driving function, this arrangement minimizes the damage caused by the hot water in the hot water pipe 411 to the water pump 422, thus ensuring stable operation and extending its service life.

[0044] In this embodiment, as Figure 7 As shown, the hot water connector 210 and the cold water connector 220 are inclined toward the first side plate 183a along the extension direction away from the water tank 200. The connection ports of the hot water connector 210 and the cold water connector 220 are inclined toward the direction away from the fifth accommodating cavity 150 to ensure that the bend of the first bent section 411a connected to the hot water connector 210 is located in the space of the fourth accommodating cavity 140 closer to the first side plate 183a. Similarly, it is ensured that the bend of the second bent section 412a connected to the cold water connector 220 is located in the space of the fourth accommodating cavity 140 closer to the first side plate 183a. This allows the space of the fourth accommodating cavity 140 adjacent to the fifth accommodating cavity 150 to also serve as reserved space for the installation and maintenance of the electric heater 421 and the water pump 422, thereby further improving the convenience of installation and maintenance of the electric heater 421 and the water pump 422.

[0045] Specifically, such as Figure 7 and Figure 8As shown, the water tank 200 can be cylindrical, prismatic, or other columnar shapes. In this embodiment, the axis of the hot water connector 210 is aligned with the radial direction of the water tank 200, that is, the axis of the hot water connector 210 intersects the axis of the water tank 200 perpendicularly. The horizontal angle α between the axis of the hot water connector 210 and the length direction of the housing 100 is 20° to 30°, that is, the angle α between the axis of the hot water connector 210 and the interface 100A is 20° to 30°. Similarly, the axis of the cold water connector 220 is aligned with the radial direction of the water tank 200, that is, the axis of the cold water connector 220 intersects the axis of the water tank 200 perpendicularly. The horizontal angle α between the axis of the cold water connector 220 and the length direction of the housing 100 is 20° to 30°, that is, the angle β between the axis of the cold water connector 220 and the interface 100A is 20° to 30°. The hot water connector 210 and the cold water connector 220 are inclined at 20° to 30° toward the first side plate 183a. While ensuring that the first bend section 411a and the second bend section 412a provide more installation and maintenance space for the electric heater 421 and the water pump 422, the pipe bending process of the first bend section 411a and the second bend section 412a is guaranteed, and the resistance caused by the excessive bend angle of the first bend section 411a and the second bend section 412a is reduced, so as to ensure the smooth flow of water circulation and the transfer of heat.

[0046] At least one of the cold water pipe 412 and the hot water pipe 411 is connected to the second side plate by a fastener 600 to improve the positional stability of the cold water pipe 412, the hot water pipe 411 and the electric heater 421, water pump 422 and the like installed on them.

[0047] In this embodiment, as Figure 3 and Figure 4 As shown, the housing 100 includes a receiving shell 160 with an open side forming an inspection port 161 and an inspection panel 170 with a removable cover over the inspection port 161. The inspection panel 170 is adjacent to the electrical control box 300. The inspection panel 170, located outside the electrical control box 300, is removable. When installing the heat pump water heater 20, the inspection panel 170 faces outwards. During use, the inspection panel 170 can be removed to expose the electrical control box 300 for inspection. After inspection, the inspection panel 170 is reinstalled at the inspection port 161. This allows for inspection of the electrical control box 300 without disassembling or reassembling the water supply pipe 410, thus improving the ease of maintenance of both the electrical control box 300 and the heat pump water heater 20.

[0048] In this embodiment, as Figure 4 and Figure 5As shown, one side edge of the electrical control box 300 is hinged to the corresponding edge of the access port 161. The electrical control box 300 is located between the access port 161 and the water circuit structure 400. When it is necessary to repair electrical components such as the water supply pipe 410 interface, electric heater 421, and water pump 422 of the water circuit structure 400, the access panel 170 can be removed, and then the electrical control box 300 can be rotated outward around the hinge to expose the water circuit structure 400. Maintenance personnel can directly repair the internal water circuit structure 400 through the access port 161. After the repair is completed, the electrical control box 300 is rotated back to its original position, and the access panel 170 is inserted into the access port 161, thereby improving the convenience of repairing the water circuit structure 400 and further improving the maintenance convenience of the heat pump water machine 20.

[0049] In this embodiment, as Figure 2 and Figure 3 As shown, the maintenance panel 170 is equipped with a wired controller 500, which is electrically connected to the after-sales wiring area 310 of the electrical control box 300 via a wire. During use, the maintenance panel 170 and the wired controller 500 are located on the outside, allowing for convenient wiring and control operations of the wired controller 500. When it is necessary to repair the water circuit structure 400, the maintenance panel 170 can be removed, and then the maintenance panel 170 can be rotated synchronously with the electrical control box 300. Repair of the water circuit structure 400 can be achieved without disconnecting the wires connecting the wired controller 500 and the electrical control box 300, thereby reducing the need for repeated wiring during maintenance and further improving the ease of maintenance of the heat pump water heater 20.

[0050] In this embodiment, as Figure 4As shown, along the height direction of the housing 100, the electrical control box 300 is arranged close to the top plate 181. The space occupied by the electrical control box 300 is the upper accommodating cavity 131, and the electrical control box 300 and the bottom plate 182 of the housing 100 are spaced apart to form a lower accommodating cavity 132. The water pump 422 is adjacent to the lower accommodating cavity 132, and the pump body of the water pump 422 faces the lower accommodating cavity 132. The height of the electrical control box 300 is less than that of the water tank 200. During installation, the top of the electrical control box 300 abuts against or leaves a small gap with the top plate 181, thus allowing it to be installed in the upper receiving cavity 131 above the third receiving cavity 130, leaving a larger space in the lower receiving cavity 132 below the electrical control box 300. The water pump 422 is located on the side of the second receiving cavity 120 adjacent to the third receiving cavity 130. The installation height of the water pump 422 corresponds to that of the lower receiving cavity 132, and the pump body of the water pump 422 faces the lower receiving cavity 132. When installing the water pump 422, the lower receiving cavity 132... The lower cavity 132 can serve as a reserved installation space for the water pump 422. The pump body of the water pump 422 can be partially extended into the lower cavity 132, thereby further improving the internal structural compactness of the housing 100 and the ease of installation of the water pump 422. At the same time, since the connection point of the water pump 422 is a leak-prone point, when it needs to be repaired, there is no need to disassemble the electrical control box 300. Only the inspection panel 170 needs to be removed to directly repair the water pump 422 through the lower cavity 132, thereby further improving the maintenance convenience of the water pump 422 and the heat pump water heater 20.

[0051] Specifically, when the casing 100 is in the form of a cuboid, such as Figures 2-7 As shown, its top in the height direction Z is a top plate 181, and its bottom is a bottom plate 182. A side plate 183 surrounds the top plate 181 and the bottom plate 182. The side plate 183 specifically includes a first side plate 183a and a second side plate 183b located at both ends in the width direction Y, and a third side plate 183c and a fourth side plate 183d located at both ends in the length direction X. Figure 6 As shown, the water tank 200, water circuit structure 400 and electrical control box 300 are arranged sequentially from the third side plate 183c to the fourth side plate 183d. The first side plate 183a, the second side plate 183b, the third side plate 183c, the top plate 181 and the bottom plate 182 together form the housing 160. The fourth side plate 183d serves as a maintenance panel 170 and is detachably connected to the housing 160 and adjacent to the electrical control box 300.

[0052] Specifically, the top plate 181, bottom plate 182, first side plate 183a, second side plate 183b, third side plate 183c, and fourth side plate 183d are all sheet metal parts, among which the second side plate 183b and the third side plate 183c can be formed by bending the same sheet metal part; when assembling the heat pump water machine 20, the second side plate 183b and the third side plate 183c can be fixed to the bottom plate 182 first, and the water tank 200 can be fixed to the area of ​​the bottom plate 182 near the third side plate 183c; then the water channel structure 400 is fixed to the area of ​​the second side plate 183b adjacent to the water tank 200 by the fastener 600, so that the water tank 200... The relative positions of the water tank 200 and the water circuit structure 400 are fixed to improve the connection convenience between the hot water connector 210 and the cold water connector 220 of the water tank 200 and the hot water pipe 411 and the cold water pipe 412 of the water circuit structure 400; then the first side plate 183a is connected to the bottom plate 182 and the top plate 181 is connected to the side panel 183. Next, the electrical control box 300 is hinged to the edge of the inspection port 161 formed by the first side plate 183a or the second side plate 183b, and the electrical components are connected to the water module electrical control board of the electrical control box 300 through wires; finally, the fourth side plate 183d (inspection panel 170) is installed on the inspection port 161.

[0053] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat pump water heater, characterized in that, The device includes a housing (100), and an electrical control box (300), a water circuit structure (400), and a water tank (200) are arranged sequentially along a first horizontal direction inside the housing (100). The water circuit structure (400) includes a water supply pipe (410) and electrical components disposed on the water supply pipe (410). The water supply pipe (410) is connected to the water tank (200), and the electrical components are connected to the electrical control box (300).

2. The heat pump water heater according to claim 1, characterized in that, The housing (100) is a cuboid, and the length direction of the housing (100) is the first horizontal direction.

3. The heat pump water heater according to claim 1, characterized in that, The water supply pipeline (410) includes a hot water pipeline (411) and a cold water pipeline (412). The upper side wall of the water tank (200) is provided with a hot water connector (210), and the lower side wall is provided with a cold water connector (220). One end of the hot water pipeline (411) is connected to the hot water connector (210), and the other end extends upward to the top plate (181) of the housing (100). One end of the cold water pipeline (412) is connected to the cold water connector (220), and the other end extends upward to the top plate (181).

4. The heat pump water heater according to claim 3, characterized in that, The housing (100) is a cuboid. The electrical control box (300), the water circuit structure (400) and the water tank (200) are arranged sequentially along the length of the housing (100). The two side plates of the housing (100) along its width direction are the first side plate (183a) and the second side plate (183b). Along the width direction of the housing (100), the hot water connector (210) is close to the first side plate (183a) and away from the second side plate (183b); the hot water pipe (411) includes a first bending section (411a), a first mounting section (411b) and a first extension section (411c) in sequence. One end of the first bending section (411a) is connected to the hot water connector (210) and the other end extends toward the second side plate (183b). The first mounting section (411b) is provided with an electric heater (421). And / or, along the width direction of the housing (100), the cold water connector (220) is close to the first side plate (183a) and away from the second side plate (183b); the cold water pipe (412) sequentially includes a second bend section (412a), a second mounting section (412b) and a second extension section (412c), one end of the second bend section (412a) is connected to the cold water connector (220) and the other end extends toward the second side plate (183b), and the second mounting section (412b) is provided with a water pump (422).

5. The heat pump water heater according to claim 4, characterized in that, The hot water connector (210) and the cold water connector (220) are inclined toward the first side plate (183a) along an extension direction away from the water tank (200).

6. The heat pump water heater according to claim 5, characterized in that, The axis of the hot water connector (210) is aligned with the radial direction of the water tank (200), and the horizontal angle between the axis of the hot water connector (210) and the length direction of the housing (100) is in the range of 20° to 30°. And / or, the axis of the cold water connector (220) is aligned with the radial direction of the water tank (200), and the horizontal angle between the axis of the cold water connector (220) and the length direction of the housing (100) is in the range of 20° to 30°.

7. The heat pump water heater according to claim 4, characterized in that, Along the height direction of the housing (100), the electrical control box (300) is arranged close to the top plate (181), and a lower accommodating cavity (132) is formed between the electrical control box (300) and the bottom plate (182) of the housing (100); the water pump (422) is adjacent to the lower accommodating cavity (132), and the pump body of the water pump (422) faces the lower accommodating cavity (132).

8. The heat pump water heater according to any one of claims 1-7, characterized in that, The housing (100) includes a housing (160) with an opening on one side forming an access port (161) and an access panel (170) that can be detachably covered by the access port (161), the access panel (170) being adjacent to the electrical control box (300).

9. The heat pump water heater according to claim 8, characterized in that, One side edge of the electrical control box (300) is hinged to the corresponding edge of the access port (161).

10. A heat pump system, characterized in that, It includes a heat pump host (10), a terminal device (30) and a heat pump water machine (20) according to any one of claims 1-9, wherein the water circuit structure (400) of the heat pump water machine (20) is connected to the heat pump host (10) and the water tank (200) of the heat pump water machine (20) is connected to the terminal device (30).

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