Heat pump apparatus and hot water heating system

Abstract

Disclosed in the present application are a heat pump apparatus and a hot water heating system. The heat pump apparatus (10) comprises a cabinet (100), a heat pump assembly (200), a fan assembly (300), a pipe assembly (500), and an electrical control box (400). The heat pump assembly (200) comprises a compressor (210), a first heat exchanger (220), a second heat exchanger (230) and refrigerant pipes, wherein an inner cavity of the cabinet (100) is divided by the first heat exchanger (220) to form an air intake cavity (101) and an air output cavity (102); the compressor (210), the second heat exchanger (230), the pipe assembly (500) and the electrical control box (400) are arranged in the air intake cavity (101); the fan assembly (300) is arranged in the air output cavity (102); and a refrigerant flow path, the compressor (210) and the first heat exchanger (220) are connected by means of the refrigerant pipes to form a refrigerant circulation loop.

Description

Heat pump equipment and hot water heating system

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent applications filed on December 31, 2024, with application number 202411998282.9 entitled "Heat Pump Equipment and Hot Water Heating System" and application number 202423322427.1 entitled "Heat Pump Equipment and Hot Water Heating System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of household appliance technology, and in particular to a heat pump device and a hot water heating system. Background Technology

[0004] In related technologies, integrated heat pump equipment integrates the refrigerant circulation loop and water flow pipeline into one unit. The internal structure layout is relatively compact, and it adopts an integrated shell. The electrical control box and the pipeline structure are installed in the same space. When maintenance is required, the entire shell must be removed first, and then the electrical control box must be disassembled in order to inspect the internal components. The operation is also relatively cumbersome and maintenance is inconvenient. Summary of the Invention

[0005] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a heat pump device that facilitates the maintenance of internal components, simplifies operation, and improves work efficiency.

[0006] This application also proposes a hot water heating system that includes the aforementioned heat pump equipment.

[0007] A heat pump device according to a first aspect embodiment of this application includes a housing, a heat pump assembly, a fan assembly, a piping assembly, and an electrical control box. The housing has an air inlet and an air outlet, and the front side of the housing has an opening and a removable panel covering the opening. The heat pump assembly includes a compressor, a first heat exchanger, a second heat exchanger, and refrigerant piping. The first heat exchanger is disposed within the housing and divides the inner cavity of the housing into an air inlet chamber and an air outlet chamber. The air inlet chamber communicates with the air inlet. The compressor and the second heat exchanger are disposed within the air inlet chamber. The second heat exchanger includes a refrigerant flow path and a water flow path. The refrigerant flow path, the compressor, and the first heat exchanger are connected through the refrigerant flow path to form a refrigerant circulation loop. The fan assembly is located in the air outlet cavity, and the exhaust port of the fan assembly is connected to the air outlet. The pipeline assembly is located in the air inlet cavity, and the pipeline assembly includes a water pump, an inlet pipe, and an outlet pipe connected to the water flow path. The electrical control box is located in the air inlet cavity, and along the front-to-back direction of the housing, the electrical control box, the pipeline assembly, and the compressor are arranged sequentially from front to back.

[0008] The heat pump device according to the embodiments of this application has at least the following beneficial effects:

[0009] The heat pump assembly, fan assembly, piping assembly, and electrical control box are installed inside the enclosure. The inner cavity of the enclosure is divided into an air inlet chamber and an air outlet chamber by a first heat exchanger. The compressor, second heat exchanger, piping assembly, and electrical control box are located in the air inlet chamber, while the fan is located in the air outlet chamber. The refrigerant flow path, compressor, and first heat exchanger are connected by refrigerant piping to form a refrigerant circulation loop. The second heat exchanger is connected to the water pump, inlet pipe, and outlet pipe through a water flow path to form a water supply pipeline. Air is drawn in through the air inlet chamber, passes through the first heat exchanger, and is discharged from the air outlet chamber, enabling the first heat exchanger to exchange heat with the outdoor air. The electrical control box, piping assembly, and compressor are arranged sequentially from front to back along the front-to-back direction of the enclosure. When maintenance of the heat pump equipment is required, the panel can be opened and the electrical control box removed to expose the piping assembly and refrigerant piping. Moreover, placing the piping assembly on the front side of the refrigerant piping makes maintenance easier and effectively improves work efficiency.

[0010] According to some embodiments of this application, the electrical control box is rotatably connected to the housing, and the electrical control box can be flipped to move into the air inlet cavity through the opening, or to move out of the air inlet cavity through the opening to expose the second heat exchanger, the refrigerant pipeline, and the pipeline assembly.

[0011] According to some embodiments of this application, the housing includes a chassis, side panels, a top cover, and a front panel; one side of the side panel has the opening; the chassis and the top cover are respectively connected to both ends of the side panel; and

[0012] The heat pump device also includes a hinge structure, through which the electrical control box is rotatably connected to one of the chassis, the side plate, and the top cover.

[0013] According to some embodiments of this application, the electrical control box is disposed along the height direction of the housing, and one side of the electrical control box is connected to the side plate via the hinge structure; and

[0014] The hinge structure includes a first hinge and a second hinge that are detachably connected. The first hinge is fixed to the electrical control box, and the second hinge is fixed to the housing. One of the first hinge and the second hinge is provided with a shaft hole, and the other is provided with a hinge shaft that is rotatably connected to the shaft hole.

[0015] According to some embodiments of this application, the electrical control box includes:

[0016] The box body has a first lid and a second lid on opposite sides, with the first lid forming a first receiving cavity and the second lid forming a second receiving cavity.

[0017] An electronic control board is disposed in the first receiving cavity, and the electronic control board has multiple wiring terminals on the side facing the first box cover;

[0018] A wiring assembly includes an inner terminal block and an outer terminal block connected to each other. The inner terminal block is disposed within a first receiving cavity, and the outer terminal block is disposed within a second receiving cavity. The inner terminal block is electrically connected to the terminal block via a first line, and the outer terminal block is used to connect to an external second line.

[0019] The box body is provided with a first outlet for the second line to pass through, and sealing elements are respectively provided between the first box cover and the box body, between the second box cover and the box body, and at the first outlet.

[0020] According to some embodiments of this application, the sealing element between the first box cover and the box body is a first sealing ring, which is arranged along the periphery of the box body; one of the first box cover and the box body is provided with a first recess that matches the first sealing ring, and the other is provided with a first protrusion that is opposite to the first recess and abuts against the first sealing ring.

[0021] According to some embodiments of this application, the sealing element between the second cover and the box body is a second sealing ring. A groove is formed on the side of the box body away from the electronic control board. The groove is provided with a second recess that matches the second sealing ring along the circumferential direction of the groove opening. The second cover plate covers the groove and abuts against the second sealing ring to define the second receiving cavity.

[0022] According to some embodiments of this application, the electronic control board has an electronic control element and a heat sink on the side facing the first cover. The electronic control element includes a heating element, and the heat sink is connected to the electronic control board and abuts against the heating surface of the heating element; and

[0023] The first box cover has a through hole, through which the heat sink protrudes and is at least partially exposed on the outside of the first box cover. A third sealing ring is provided between the heat sink and the first box cover.

[0024] According to some embodiments of this application, the housing includes a chassis, side panels, a top cover, and a front panel. The side panel has an opening on one side. The chassis and the top cover are respectively connected to both ends of the side panel. The chassis, the side panels, the front panel, and the top cover are each provided with a thermal insulation layer.

[0025] According to some embodiments of this application, the insulation layer of the chassis is a first insulation layer. The chassis includes a water receiving tray and a support tray. The water receiving tray is disposed on the upper side of the support tray. The first insulation layer is disposed between the water receiving tray and the support tray. One side of the first insulation layer covers the lower end surface of the water receiving tray, and the other side covers the upper end surface of the support tray, so as to separate the water receiving tray and the support tray.

[0026] According to some embodiments of this application, the chassis further includes a plurality of connectors, which pass through the water receiving tray, the first insulation layer, and the support plate. The water receiving tray and the support plate are respectively fixedly connected to the connectors to clamp the first insulation layer; and

[0027] The end of the connector away from the water receiving tray protrudes from the support plate. The chassis also includes a plurality of foot pads, which are located on the underside of the support plate and connected to the end of the connector that protrudes from the support plate.

[0028] According to some embodiments of this application, the insulation layer of the top cover is a second insulation layer, which covers the lower end surface of the top cover. The second insulation layer has two through slots, one of which communicates with the air inlet and the other with the air outlet; and

[0029] The lower end face of the top cover is provided with a plurality of positioning posts spaced apart, and the second insulation layer is provided with a plurality of positioning grooves corresponding to the plurality of positioning posts. The positioning posts pass through the positioning grooves and are interference-fitted with the positioning grooves.

[0030] According to some embodiments of this application, the insulation layer of the side panel is a third insulation layer, and the insulation layer of the panel is a fourth insulation layer; the third insulation layer covers the inner surface of the side panel, and the fourth insulation layer covers the inner surface of the panel; and

[0031] The housing assembly also includes a bracket located on the side of the side plate facing the inner cavity. The upper side of the bracket is provided with a first mounting part, and the lower side of the bracket is provided with a second mounting part. The third insulation layer is located between the bracket and the side plate. The side plate is connected to the first mounting part and the second mounting part respectively to clamp the fourth insulation layer.

[0032] According to some embodiments of this application, the fan assembly includes a duct structure and a fan body. The duct structure has a duct, an air inlet, and an air outlet. The air inlet and the air outlet are respectively connected to the duct. The air inlet is disposed facing the first heat exchanger, and the fan body is disposed within the duct.

[0033] The heat pump equipment also includes a guide structure, and the air duct structure is connected to the housing through the guide structure. The guide structure is used to guide the fan assembly to move into or out of the air outlet cavity through the opening.

[0034] According to some embodiments of this application, the air duct structure includes a volute and a guide plate, the air duct is formed inside the volute, the volute has an opening on the side facing the first heat exchanger, the guide plate covers the opening, and the air inlet is formed in the guide plate; and

[0035] The fan assembly also includes a shell portion, which, together with the air guide plate, forms a cavity for accommodating the volute. The shell portion is connected to the guide structure. Both the volute and the air guide plate are made of foam, while the shell portion is made of metal.

[0036] The hot water heating system according to the second aspect of this application includes the heat pump equipment described in the first aspect of the embodiment.

[0037] The hot water heating system according to the embodiments of this application has at least the following beneficial effects:

[0038] The hot water heating system adopts the heat pump equipment of the first aspect embodiment. Since the electrical control box, piping components and refrigerant piping are arranged sequentially from front to back along the front-to-back direction of the enclosure, when the heat pump equipment needs to be inspected, the panel can be opened and the electrical control box removed to expose the piping components and refrigerant piping. Moreover, the piping components are located on the front side of the refrigerant piping, which makes it easier to inspect and effectively improves the maintenance efficiency of the hot water heating system.

[0039] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0040] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0041] Figure 1 is a schematic diagram of the overall structure of a heat pump device according to an embodiment of this application;

[0042] Figure 2 is a structural schematic diagram of a heat pump device according to an embodiment of this application (with the panel and second cover removed);

[0043] Figure 3 is a schematic diagram of the structure of a heat pump device according to an embodiment of this application (the electrical control box is flipped outwards);

[0044] Figure 4 is a schematic diagram of the structure of a heat pump device according to an embodiment of this application (wiring status of the electrical control box);

[0045] Figure 5 is a magnified view of part A in Figure 2;

[0046] Figure 6 is a magnified view of part B in Figure 4;

[0047] Figure 7 is a front view of the electrical control box according to an embodiment of this application;

[0048] Figure 8 is an exploded structural diagram of the first box lid and box body according to an embodiment of this application;

[0049] Figure 9 is an exploded structural diagram of the first box cover, the second box cover, and the box body according to an embodiment of this application;

[0050] Figure 10 is a schematic diagram of the cross-sectional structure in the CC direction of Figure 7;

[0051] Figure 11 is a magnified view of part D in Figure 10;

[0052] Figure 12 is a schematic diagram of the structure of a heat pump device according to an embodiment of this application (with the electrical control box flipped outward and the fan assembly moved outward).

[0053] Figure 13 is a schematic diagram of the structure of a wind turbine assembly according to an embodiment of this application;

[0054] Figure 14 is an exploded structural diagram of a chassis according to an embodiment of this application;

[0055] Figure 15 is a schematic diagram of the bottom structure of a chassis according to an embodiment of this application;

[0056] Figure 16 is a schematic diagram of the assembly structure of the top cover and the second insulation layer according to an embodiment of this application;

[0057] Figure 17 is a schematic diagram of the assembly structure of the side plate and the third insulation layer according to an embodiment of this application; and

[0058] Figure 18 is a schematic diagram of the assembly structure of the panel and the fourth insulation layer according to an embodiment of this application.

[0059] Reference numerals: Heat pump equipment 10; Housing 100; Air inlet chamber 101; Air outlet chamber 102; Opening 103; Chassis 110; Water receiving tray 111; Water collection trough 1111; First perimeter 1121; Support plate 112; Second perimeter 1121; Receiving groove 1122; First insulation layer 113; Third perimeter 1131; Sealing body 114; Foot pad 115; Water inlet 116; Water outlet 117; Third cable outlet 118; Side plate 120; 121. Three-layer insulation; 130. Top cover; 131. Air inlet; 132. Air outlet; 133. Air guide ring; 134. Connecting hole; 135. Second insulation layer; 1351. Through groove; 1352. Step; 1353. Positioning groove; 136. Insulation component; 1361. Fitting part; 1362. Surrounding part; 140. Panel; 141. Fourth insulation layer; 150. Lock; 160. Bracket; 161. First mounting part; 162. Heat pump assembly 200; compressor 210; first heat exchanger 220; first refrigerant pipeline 221; second heat exchanger 230; water pipeline 231; second refrigerant pipeline 232; fan assembly 300; air inlet 301; air outlet 302; duct structure 310; volute 311; air guide plate 312; reinforcing structure 313; fan body 320; impeller 321; shell 330; guide structure 340; Electrical control box 400; First receiving cavity 401; Second receiving cavity 402; First circuit 403; Second circuit 404; Third circuit 405; Electrical control board 410; Electrical control component 411; Inductor 4111; Terminal block 412; Box body 420; First groove 421; Second outlet 4211; First protrusion 4212; Second groove 422; First outlet 4221; Stepped surface 4222; Second recess 4223; Lug 423; First cover 430; Through hole 431; Heat dissipation channel 432 Air inlet 433; Air outlet 434; First recess 435; Second cover 440; First plate 441; Second plate 442; Inner terminal block 450; Inner high-voltage terminal block 451; Inner low-voltage terminal block 452; Outer terminal block 460; Outer high-voltage terminal block 461; Outer low-voltage terminal block 462; Seal 470; First sealing ring 471; Second sealing ring 472; First sealing section 4721; Second sealing section 4722; Third sealing ring 473; First wire guide 480; Second wire guide 490; Piping assembly 500; Water pump 510; Inlet pipe 520; Outlet pipe 530; Hinge structure 600; First hinge 610; Bushing 611; Second hinge 620; Hinge shaft 621; Radiator 700; Flange 710. Detailed Implementation

[0060] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0061] In the description of this application, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0062] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0063] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0064] In related technologies, to save installation space, some heat pump water heaters integrate the refrigerant circulation loop and water pipes into a single unit, also known as an integrated heat pump device. It connects to the indoor unit via water pipes to supply domestic hot water and heating for the space. The electrical control box, refrigerant circulation loop, and water pipes are all housed in the same space, resulting in a compact internal structure. In this particular heat pump device, the electrical control box is located below the top cover and above the middle partition. Therefore, maintenance of the electrical control box requires disassembling the front panel, top cover, and left and right side panels, and then loosening the bolts securing the electrical control box to the middle partition before disassembling the control box itself. This presents an inconvenience for inspecting internal components; furthermore, most water circuit components are obstructed by the electrical control box, requiring significant side space for maintenance.

[0065] Other heat pump products use an integrated casing. When maintenance is required, the entire casing must be removed first, and then the electrical control box must be disassembled before the internal components can be inspected. The operation is also more cumbersome. Moreover, many components are located on both sides of the machine, making it difficult to inspect them directly from the front. It is necessary to enter the sides of the machine to inspect them, and maintenance space must be reserved on both sides of the machine.

[0066] Therefore, integrated heat pump equipment in related technologies all have certain requirements for the installation environment, requiring a certain amount of installation and maintenance space, either at the top or to the sides, thus occupying limited indoor space and restricting installation scenarios. Furthermore, since the evaporator needs to exchange heat with the outdoor environment, the heat pump equipment, as an outdoor unit, needs to be installed outdoors. If components such as the water system malfunction and require repair, complex procedures are needed to complete disassembly and repair, increasing costs. Especially for residents on higher floors, installers must work outdoors at heights for both installation and repair, resulting in high installation and maintenance costs and posing significant risks during the installation process.

[0067] Therefore, embodiments of this application propose a heat pump device that enables quick operation to expose internal components, facilitating their inspection and maintenance. Specific embodiments of the heat pump device are described below.

[0068] Referring to Figures 1 and 2, the heat pump device 10 of this application includes a housing 100, a heat pump assembly 200, and a fan assembly 300. The housing 100 has an inner cavity, and the heat pump assembly 200 and the fan assembly 300 are installed in the inner cavity. An opening 103 and a panel 140 are provided on the front side of the housing 100. The opening 103 communicates with the inner cavity, and the panel 140 is detachably installed at the opening 103. The opening 103 can be opened or closed through the panel 140.

[0069] In some embodiments, latches 150 are provided on both sides of the panel 140, and the panel 140 is connected to the side plate 120 of the housing 100 via the latches 150, enabling quick disassembly of the panel 140. After opening the panel 140, the internal structure of the machine can be exposed, facilitating installation and maintenance. Exemplarily, the panel 140 and the side plate 120 can also be connected via latches, screws, or other structures. In other embodiments, the panel 140 can also be rotatably connected to the side plate 120 via hinges, hinges, or other hinged structures to allow the panel 140 to be flipped open.

[0070] Referring to Figures 2 and 3, the heat pump assembly 200 includes a compressor 210, a first heat exchanger 220, a second heat exchanger 230, a throttling device, and refrigerant piping. The first heat exchanger 220 is located in the middle of the housing 100 and is arranged vertically along the height direction of the housing 100. The first heat exchanger 220 divides the inner cavity of the housing 100 into an air inlet chamber 101 and an air outlet chamber 102. The air inlet chamber 101 is located to the right of the first heat exchanger 220, and the air outlet chamber 102 is located to the left of the first heat exchanger 220. The compressor 210, the second heat exchanger 230, the throttling device, and the refrigerant piping are disposed in the air inlet chamber 101, and the fan assembly 300 is disposed in the air outlet chamber 102.

[0071] In some embodiments, the first heat exchanger 220 is an evaporator, the second heat exchanger 230 is a plate heat exchanger, the refrigerant pipeline includes a first refrigerant pipeline 221 and a second refrigerant pipeline 232, the plate heat exchanger includes a refrigerant flow path and a water flow path 231, the evaporator is connected to the compressor 210 and the throttling device through the first refrigerant pipeline 221 respectively, and the refrigerant flow path of the plate heat exchanger is connected to the compressor 210 and the throttling device through the second refrigerant pipeline 232 respectively, so that the compressor 210, the first heat exchanger 220 and the second heat exchanger 230 are connected through the refrigerant pipeline to form a refrigerant circulation loop for refrigerant circulation.

[0072] Referring to Figure 3, the heat pump device 10 also includes a piping assembly 500, which is installed inside the air inlet chamber 101. The piping assembly 500 includes a water pump 510, an inlet pipe 520, and an outlet pipe 530. The inlet pipe 520 and the outlet pipe 530 are respectively connected to the water flow pipe 231. The water pump 510 can be installed on either the inlet pipe 520 or the outlet pipe 530 to form a water supply pipeline. During operation, the refrigerant output from the compressor 210 passes through a plate heat exchanger, where it exchanges heat with water. After throttling, it enters the evaporator, where it exchanges heat with outdoor air before returning to the compressor 210 for the next cycle. The water pump 510 drives cold water into the plate heat exchanger, allowing the water to exchange heat with the refrigerant, thereby producing hot water.

[0073] It should be noted that, referring to Figures 1 and 2, the top of the housing 100 is provided with an air inlet 131 and an air outlet 132. The air inlet 131 is connected to the air inlet cavity 101. The air inlet 301 of the fan assembly 300 faces the evaporator, and the air outlet 302 of the fan assembly 300 is connected to the air outlet 132. In one embodiment, the air inlet 131 and the air outlet 132 are respectively provided with air guide rings 133, which have the function of guiding air. Alternatively, the air inlet 131 can be connected to the air inlet pipe through the air guide ring 133, and the air outlet 132 can be connected to the air outlet pipe through the air guide ring 133. Both the air inlet pipe and the air outlet pipe are connected to the outdoor environment. Outdoor air enters the air inlet cavity 101 through the air inlet pipe and the air inlet 131, exchanges heat with the evaporator, and enters the air outlet cavity 102. Then, it is discharged to the outdoor environment through the air outlet 132 and the air outlet pipe. Using outdoor air as a heat source, heat is extracted through a heat exchange process to heat the water. The arrows in Figure 1 indicate the directions of air intake and exhaust, respectively.

[0074] It is understood that the heat pump device 10 of this application can provide hot water through the outlet pipe 530 for supplying domestic hot water and heating hot water. Alternatively, the outlet pipe 530 can be connected to a water tank to store the hot water for user use. The inlet 116 of the inlet pipe 520 and the outlet 117 of the outlet pipe 530 are both located on the chassis 110 of the housing 100 to avoid affecting the appearance and structure from being visible from the front or side. Since the heat pump device 10 of this application has a relatively small heat load, in some embodiments, the heat pump device 10 can be linked with external devices such as a gas boiler, electric heater, or water tank to meet user needs.

[0075] The heat pump unit 10 can be installed indoors, specifically in basements, attics, garages, machine rooms, storage rooms, and other similar locations. This provides a wide range of installation options, eliminating the need for outdoor installations and avoiding the high costs, long installation times, and high risks associated with outdoor unit installations. Installation is not limited by the aesthetics of the building's exterior, installation regulations, or outdoor noise. Furthermore, the entire installation and maintenance process is conducted indoors, resulting in low costs and simple operation. During shutdown, it is unaffected by harsh outdoor environments, eliminating the need for extensive redundancy in the design of water supply pipes to prevent freezing and reducing manufacturing costs.

[0076] Referring to Figure 2, the heat pump device 10 also includes an electrical control box 400. The electrical control box 400 is used to electrically connect the compressor 210, the fan assembly 300, the water pump 510, the sensor, the control valve and other components. It can also be connected to external equipment. For example, the water tank can be equipped with a switch valve. The electrical control box 400 can lead out a line and extend it to the outside of the box 100 so that the line can be connected to the switch valve to realize the control of the switch valve.

[0077] In some embodiments, the control box 400 is installed near the opening 103 of the housing 100. The control box 400 can be installed on the side wall of the side panel 120 or on the chassis 110. The control box 400, the piping assembly 500, and the compressor 210 are arranged sequentially from front to back along the front-to-back direction of the housing 100. The first refrigerant pipe 221 and the second refrigerant pipe 232 are both arranged close to the compressor 210. Therefore, it can be understood that the control box 400, the piping assembly 500, and the refrigerant pipes are arranged sequentially from front to back. When the heat pump equipment 10 needs to be repaired, the panel 140 is opened and the control box 400 is removed to expose the piping assembly 500 and the refrigerant pipes. That is, the piping assembly 500 and the refrigerant pipes can be directly seen from the front. Since the piping assembly 500 has a higher failure rate than the refrigerant pipes, placing the piping assembly 500 in front of the refrigerant pipes makes repairs easier and effectively improves work efficiency.

[0078] Referring to FIG3, in some embodiments, the control box 400 is disposed at the opening 103 of the housing 100. The control box 400 is rotatably connected to the housing 100. For example, the control box 400 is connected to the housing 100 by a hinge, so that the control box 400 can rotate around the hinge position to achieve the flipping of the control box 400. In this way, the control box 400 can rotate toward the air inlet cavity 101 and move into the air inlet cavity 101 from the opening 103, so that the control box 400 is stored inside the housing 100. Alternatively, when the control box 400 is located inside the air inlet cavity 101, the control box 400 can be flipped toward the outside of the housing 100, so that the control box 400 moves out of the air inlet cavity 101 from the opening 103.

[0079] It is understood that in the embodiments, the electrical control box 400 is roughly cuboid. Since the electrical control box 400 is located near the opening 103 in the air inlet cavity 101, it can cover the air inlet cavity 101 at the opening 103. Components such as the compressor 210, plate heat exchanger, first refrigerant pipe 221, second refrigerant pipe 232, water inlet pipe 520, water outlet pipe 530, and water pump 510 are all arranged inside the air inlet cavity 101. Referring to FIG3, in some embodiments, the compressor 210 is located near the back of the housing 100, the plate heat exchanger is fixedly connected to the side wall of the housing 100, the water pump 510 is located below the plate heat exchanger, and the first refrigerant pipe 221, second refrigerant pipe 232, and water pipe 231 are arranged according to the positions of the aforementioned components. The electrical control box 400 can shield these components, and thus the panel 140 covers the opening 103, thereby shielding the internal structure of the housing 100.

[0080] Referring to Figure 3, when the heat pump equipment 10 needs maintenance, simply open the panel 140 and flip the electrical control box 400 around the hinge position to move the electrical control box 400 out of the air inlet cavity 101. This opens the air inlet cavity 101, exposing the piping assembly 500, compressor 210, second heat exchanger 230, and refrigerant piping. In other words, the user can see the piping assembly 500 and refrigerant circulation loop from the front of the housing 100. This facilitates operation during production, installation, commissioning, and maintenance, and also makes it easy to replace parts without disassembling the electrical control box 400. Furthermore, moving the electrical control box 400 out of the air inlet cavity 101 also facilitates wiring and maintenance of the electrical control box 400. The operation is simple and quick, effectively improving work efficiency.

[0081] It should be noted that the fan assembly 300 is located inside the air outlet cavity 102, spaced apart from the air inlet cavity 101. The fan assembly 300 is exposed after opening the panel 140, facilitating maintenance. In some embodiments, the fan assembly 300 can be connected to the housing 100 via a guide structure 340, allowing the fan assembly 300 to be moved into or out of the air outlet cavity 102 through the opening 103 along the guide structure 340, facilitating maintenance operations. The heat pump equipment 10, adopting the layout structure of the above embodiment, requires minimal space, eliminating the need for extensive installation and maintenance space on both sides of the machine. All maintenance can be completed on the front side of the housing 100, simplifying operation.

[0082] Referring to Figure 2, the housing 100 includes a chassis 110, a side panel 120, a top cover 130, and a panel 140. An opening 103 is provided on one side of the side panel 120. The chassis 110 and the top cover 130 are respectively connected to the upper and lower ends of the side panel 120. The chassis 110, side panel 120, top cover 130, and panel 140 can define the inner cavity. The air inlet 131 and the air outlet 132 are both provided on the top cover 130.

[0083] Referring to Figure 3, in some embodiments, the control box 400 is rotatably connected to the side plate 120 via a hinge structure 600. The hinge is located on the right side of the opening 103, allowing the control box 400 to flip to the right and move out of the air inlet cavity 101. The hinge structure 600 can be a hinge, a hinge, or similar structure. Taking a hinge as an example, two hinges can be connected to both ends of the control box 400 along its height direction, and both hinges are connected to the side plate 120, thus enabling the control box 400 to flip.

[0084] Of course, the control box 400 is not limited to being hinged to the side panel 120. It can also be connected to the top cover 130 or the chassis 110 through the hinge structure 600. For example, the upper end of the control box 400 is hinged to the top cover 130 and can be flipped upward to open the air inlet cavity 101; or the lower end of the control box 400 is hinged to the chassis 110 and can be flipped downward to open the air inlet cavity 101.

[0085] Referring to Figures 4 and 6, in some embodiments, the hinge structure 600 includes a first hinge 610 and a second hinge 620. The first hinge 610 is fixedly connected to the side of the electrical control box 400, and the second hinge 620 is fixedly connected to the edge of the side plate 120. The first hinge 610 is provided with a bushing 611, and the bushing 611 is provided with a shaft hole. The second hinge 620 is provided with a hinge shaft 621, which is inserted into the shaft hole, so that the first hinge 610 and the second hinge 620 can rotate relative to each other, thereby realizing the rotation of the electrical control box 400 around the hinge shaft 621.

[0086] Referring to the example shown in Figure 6, since the bushing 611 and the hinge shaft 621 are connected by a sleeve connection, the bushing 611 can move upward to disengage from the hinge shaft 621, thereby separating the first hinge 610 and the second hinge 620, realizing the disassembly and separation of the electrical control box 400 from the housing 100, facilitating the installation and removal of the electrical control box 400. In some other embodiments, the hinge shaft 621 can be provided on the first hinge 610, and the bushing 611 can be provided on the second hinge 620, which can also realize the disassembly and separation of the first hinge 610 and the second hinge 620.

[0087] Referring to Figures 2 and 5, in order to fix the electrical control box 400, in some embodiments, the right side of the electrical control box 400 is connected to the side plate 120 through the aforementioned hinge structure 600, and the left side of the electrical control box 400 is provided with a lug 423, which is located at the upper end of the electrical control box 400. When the electrical control box 400 is located in the air inlet cavity 101, it is connected to the top cover 130 through the lug 423, thereby fixing the electrical control box 400. Specifically, the lug 423 and the top cover 130 are respectively provided with connecting holes 134. Bolts are used to pass through the connecting holes 134 of the lug 423 and the top cover 130 to fix the electrical control box 400 and prevent the electrical control box 400 from swinging during use.

[0088] Understandably, since the hinge structure 600 provides support and positioning for one side of the electrical control box 400, only one bolt is needed to fix the electrical control box 400 in this embodiment, improving maintenance efficiency. Of course, the lug 423 is not limited to being connected to the top cover 130 by bolts. For example, the lug 423 can be provided with a buckle, and the top cover 130 can be provided with a slot that matches the buckle, so as to achieve quick fixation through a snap-fit ​​method.

[0089] Furthermore, when the control box 400 is close to the chassis 110, the lug 423 can be installed at the lower end of the control box 400, and the lug 423 is connected to the chassis 110 by bolts or fasteners. The specific shape of the lug 423 can be selected according to the actual requirements of the product to meet the requirements for connection with the top cover 130 or the chassis 110.

[0090] The above are some examples of heat pump equipment 10. The following is a further explanation of the specific structure of the electrical control box 400.

[0091] In related technologies, the internal wiring terminal 450 and external wiring terminal 460 in heat pump water heaters and split air conditioners are usually installed separately. Taking a heat pump water heater as an example, the internal wiring terminal 450 of the outdoor unit is located in the electrical control assembly, while the external wiring terminal 460 is located on the outer casing. The outer casing has a cable outlet corresponding to the external wiring terminal 460, and the wiring of external devices is led out from the cable outlet. However, for the integrated heat pump device 10, its internal space is relatively compact, making the above-mentioned solution unsuitable. Moreover, since the heat pump device 10 of this application is installed in an indoor environment, and needs to exchange heat with the cold outdoor air, the internal temperature of the heat pump device 10 will be lower than the room temperature, making it prone to condensation. This places high demands on the sealing and waterproofing requirements of the electrical control box 400. Therefore, the solution using related technologies is not suitable for the heat pump device 10 of this application.

[0092] Referring to Figures 7, 8, and 9, the electrical control box 400 includes an electrical control board 410, a box body 420, a first box cover 430, and a second box cover 440. The box body 420 has a first side and a second side arranged opposite to each other. The first side has a first groove 421, and the second side has a second groove 422. The first box cover 430 is disposed on the first side and covers the first groove 421, defining a first receiving cavity 401 between the first box cover 430 and the first groove 421. The second box cover 440 is disposed on the second side and covers the second groove 422, defining a second receiving cavity 402 between the second box cover 440 and the second groove 422. The electrical control board 410 is installed in the first receiving cavity 401. The box body 420 serves to fix the electrical control board 410 and protects the electrical control board 410 by enclosing it with the first box cover 430.

[0093] The control board 410 is equipped with electrical control components 411 and multiple wiring terminals 412. The electrical control components 411 and wiring terminals 412 are distributed on the side of the control box 400 facing the cover. The wiring terminals 412 are electrically connected to internal components such as the compressor 210, fan assembly 300, water pump 510, sensors, and control valves, and can also be electrically connected to external devices, such as gas boilers, electric heaters, or water tanks. It is understood that the control box 400 also includes wiring assemblies. When the control board 410 is connected to external devices, some of the wiring terminals 412 of the control board 410 are electrically connected to the external devices through the wiring assemblies.

[0094] Specifically, the wiring assembly includes an inner terminal block 450 and an outer terminal block 460. The inner terminal block 450 is disposed within the first receiving cavity 401, and is arranged side by side with the control board 410. The outer terminal block 460 is disposed within the second receiving cavity 402. The inner terminal block 450 is electrically connected to the terminal block 412 via a first line 403. The outer terminal block 460 is provided with a second line 404, through which the control box 400 and the enclosure 100 are led out, and it is connected to external devices. The first line 403 and the inner terminal block 450 can be understood as the transfer line between the control board 410 and the inner terminal block 450. The connection to external devices via the second line 404 enables linkage with the gas wall-hung boiler, electric heater, or water tank. The second line 404 may specifically include communication lines for connecting external devices such as temperature sensors and control valves, as well as the power cord of the heat pump device 10.

[0095] Understandably, the inner terminal block 450 and the outer terminal block 460 serve as wiring components between the control board 410 and external devices. The inner terminal block 450 and the outer terminal block 460 are installed together inside the control box 400. In other words, the inner terminal block 450 and the outer terminal block 460 are integrated with the control box 400, eliminating the need to install them separately. This results in a more compact structure and saves more installation space.

[0096] In some embodiments, the first cover 430 can be connected to the box body 420 by a snap-fit, or by bolts or other fixing methods. The second cover 440 can be connected to the box body 420 by a snap-fit ​​or bolt connection. This facilitates opening the first cover 430 and the second cover 440 to inspect and maintain the electrical control box 400.

[0097] Referring to Figure 2, when the electrical control box 400 is flipped and moved into the housing 100, the first cover 430 faces the air inlet cavity 101, and the second cover 440 faces the front of the housing 100. The second cover 440 can be exposed when the panel 140 is opened, making it easy to open the second cover 440. After the second cover 440 is opened, the external wiring terminal 460 can be exposed, making it easy to wire and maintain the external wiring terminal 460.

[0098] Referring to Figures 3 and 4, when the electrical control box 400 is flipped out of the housing 100, the air inlet chamber 101 is opened to expose components such as the compressor 210, plate heat exchanger, and piping assembly 500. At this time, the first cover 430 is also exposed, making it easy to open the first cover 430. After the first cover 430 is opened, the electrical control board 410 and the internal wiring terminal 450 are exposed, making it easy to wire and repair the electrical control board 410 and the internal wiring terminal 450.

[0099] It is understandable that some of the wiring terminals 412 are connected to the inner terminal block 450. In this embodiment, the control board 410 is located above the inner terminal block 450, and the two are arranged adjacent to each other. Therefore, the adapter line used is shorter, which facilitates wiring and makes the wiring more reasonable. Some of the wiring terminals 412 can be directly connected to components such as the compressor 210, fan assembly 300, and sensors inside the housing 100. The wiring operation is also simple and does not require disassembling the control box 400.

[0100] It should be noted that in the embodiment, the box body 420 is connected to the housing 100 through the hinge structure 600. When the first box cover 430 and the second box cover 440 are opened, the connection between the box body 420 and the housing 100 can be maintained without disassembling the box body 420, the electrical control board 410, the inner terminal block 450 and the outer terminal block 460, which facilitates wiring and maintenance operations.

[0101] In some embodiments, the inner terminal block 450 and the outer terminal block 460 are arranged in a paired matching combination. That is, the number of inner terminal blocks 450 and outer terminal blocks 460 is the same and they are arranged one-to-one. Since the inner terminal blocks 450 and the outer terminal blocks 460 are arranged in opposite directions, the housing 420 can be provided with a connecting groove connecting the first groove 421 and the second groove 422. The outer terminal block 460 can pass through the connecting groove and connect to the inner terminal block 450. Specifically, it can be fixed by plugging or snapping, which is simple to assemble. Moreover, after the inner terminal block 450 and the outer terminal block 460 are assembled, the electrical connection between the inner terminal block 450 and the outer terminal block 460 can be realized through the metal conductive structure, without the need to run wires between the inner terminal block 450 and the outer terminal block 460.

[0102] It should be noted that the internal terminal block 450 includes an internal high-voltage terminal block 451 and an internal low-voltage terminal block 452, and the external terminal block 460 includes an external high-voltage terminal block 461 and an external low-voltage terminal block 462. The external high-voltage terminal block 461 is connected to the internal high-voltage terminal block 451, and the external low-voltage terminal block 462 is connected to the internal low-voltage terminal block 452. The external high-voltage terminal block 461 is used to connect power lines and other high-voltage lines, and the external low-voltage terminal block 462 is used to connect signal lines, control lines, and other low-voltage lines. It should also be noted that the external high-voltage terminal block 461 and the external low-voltage terminal block 462 can be distinguished by using terminal blocks with different numbers of terminals, and the internal high-voltage terminal block 451 and the internal low-voltage terminal block 452 can also be distinguished by using terminal blocks with different numbers of terminals, serving as a wiring error prevention mechanism.

[0103] Referring to Figure 8, a sealing element 470 is provided between the first lid 430 and the box body 420, which improves the sealing performance between the first lid 430 and the box body 420. Specifically, the sealing element 470 between the first lid 430 and the box body 420 is a first sealing ring 471. The first sealing ring 471 is arranged along the periphery of the first groove 421. When the first lid 430 covers the first groove 421, the edge of the first lid 430 abuts against the first sealing ring 471 to form a sealing structure, which can prevent moisture from entering the first receiving cavity 401.

[0104] In some embodiments, the first sealing ring 471 is rectangular, matching the shape of the first groove 421. The first sealing ring 471 is made of rubber, which has good sealing performance, or it can be silicone or other elastic sealing materials. The specific shape of the first sealing ring 471 can be selected according to the actual shape of the first groove 421 and the first cover 430. For example, the first sealing ring 471 can be square or other polygonal shapes.

[0105] Referring to Figures 10 and 11, in some embodiments, a first recess 435 is provided on the edge of the first lid 430 facing the box body 420. The first recess 435 is arranged circumferentially along the first lid 430. The first sealing ring 471 is accommodated in the first recess 435. A first protrusion 4212 is provided on the edge of the box body 420. After the first lid 430 and the box body 420 are assembled, the first protrusion 4212 enters into the first recess 435 and abuts against the first sealing ring 471. The first protrusion 4212 can press the first sealing ring 471 to achieve a better sealing effect.

[0106] The first recess 435 can be understood as an annular groove surrounding the first lid 430. A surrounding plate is provided on the outer periphery of the box body 420, and the end of the surrounding plate is formed as a first protrusion 4212. In other embodiments, the first recess 435 may be provided on the periphery of the box body 420, and the first protrusion 4212 may be provided on the periphery of the first lid 430. For example, the first recess 435 is formed on the end face of the surrounding plate facing the first lid 430, and the first protrusion 4212 is correspondingly matched with the first recess 435.

[0107] Referring to FIG9, a sealing element 470 is provided between the second cover 440 and the box body 420. The sealing element 470 is a second sealing ring 472, which can improve the sealing performance between the second cover 440 and the box body 420.

[0108] As can be understood, as shown in Figure 9, the groove on the side of the box body 420 facing away from the electronic control board 410 is the second groove 422. The second sealing ring 472 is arranged around the second groove 422. When the second box cover 440 covers the second groove 422, the edge of the second box cover 440 abuts against the second sealing ring 472 to form a sealing structure, thereby preventing water vapor from entering the second receiving cavity 402.

[0109] Referring to Figures 9 and 10, in some embodiments, a second recess 4223 is provided on the end face of the box body 420 facing away from the first receiving cavity 401. The second recess 4223 is arranged around the groove of the second groove 422. The second sealing ring 472 is accommodated in the second recess 4223. After the second box cover 440 is assembled with the box body 420, the second box cover 440 abuts against the second sealing ring 472. The second box cover 440 can press the second sealing ring 472 tightly to achieve a better sealing effect.

[0110] In one embodiment, a stepped surface 4222 may be provided between the end face of the box body 420 and the second groove 422. The second recess 4223 may be an annular groove formed on the stepped surface 4222. The stepped surface 4222 matches the second box cover 440 so that when the second box cover 440 covers the second groove 422, it can be flush with the end face of the box body 420. That is, the second box cover 440 does not protrude from the surface of the box body 420, resulting in better sealing.

[0111] Referring to Figure 9, since the external terminal block 460 needs to be connected to external devices through the second line 404, a first outlet 4221 for the second line 404 to pass through is provided on the housing 420. In this embodiment, the first outlet 4221 is located on the side wall of the second groove 422, and a sealing element 470 is provided at the first outlet 4221. Specifically, a first wire guide clip 480 is used to seal the first outlet 4221, so that while the second line 404 is led out from the first outlet 4221, the first outlet 4221 can be ensured to have high sealing performance, preventing moisture from entering the electrical control box 400 from the first outlet 4221.

[0112] In one embodiment, the first cable outlet 4221 is a notch formed in the sidewall of the second groove 422, that is, the side of the first cable outlet 4221 facing the second cover 440 is an open structure, which facilitates the first cable clip 480 to be assembled into the first cable outlet 4221 through the open structure. In order to match the sealing structure of the second groove 422 and the notch, in this embodiment, the second cover 440 includes a first plate 441 and a second plate 442 connected together, wherein the first plate 441 covers the second groove 422 and the second plate 442 covers the notch, so that the second cover 440 can match the arrangement of the second groove 422 and the first cable outlet 4221.

[0113] It should be noted that, referring to Figure 9, the second sealing ring 472 includes a first sealing section 4721 and a second sealing section 4722. The shape and size of the first sealing section 4721 match the shape and size of the second groove 422, and the first sealing section 4721 cooperates with the first plate 441 to seal the second groove 422. The shape and size of the second sealing section 4722 match the shape and size of the notch, and the second sealing section 4722 cooperates with the second plate 442 to seal the first cable outlet, thereby ensuring better sealing at the first cable outlet 4221.

[0114] The material of the second sealing ring 472 can be rubber, silicone, or other elastic sealing materials. The first sealing section 4721 and the second sealing section 4722 adopt an integral molding structure. The specific shape of the first sealing section 4721 and the second sealing section 4722 can be selected according to the actual shape of the second groove 422 and the first outlet 4221 to match the structure of the second groove 422 and the first outlet 4221.

[0115] Referring to Figure 2, the chassis 110 is provided with a third cable outlet 118, through which the second cable 404 exits the housing 100. A sealing body 114 is provided for the third cable outlet 118, sealing it. When the second cable 404 exits from the third cable outlet 118, it seals against the sealing body 114, ensuring a high level of airtightness and preventing indoor air from entering the housing 100 through the third cable outlet 118, thus reducing condensation. In this embodiment, the sealing body 114 can be a sealing kit made of materials such as rubber or silicone. The sealing kit is fitted onto the second cable 404, maintaining tight contact and providing a better sealing effect.

[0116] It should be noted that some of the wiring terminals 412 are equipped with a third line 405. The control board 410 is electrically connected to the compressor 210, fan assembly 300, sensors and other components inside the housing 100 through the third line 405. Therefore, the housing 420 is provided with a second outlet 4211 for the third line 405 to pass through. A second wire guide 490 is provided inside the second outlet 4211. The second wire guide 490 is used to seal the second outlet 4211, which allows the third line 405 to be led out from the second outlet 4211 while ensuring that the second outlet 4211 has a high degree of sealing, preventing moisture from entering the control box 400 through the second outlet 4211.

[0117] In some embodiments, the first wire pass 480 and the second wire pass 490 adopt the same structure to ensure that the wire outlet of the electrical control box 400 has better sealing performance. Taking the first wire pass 480 as an example, the first wire pass 480 includes a wire pass body, which is provided with a wire pass groove. Multiple sealing plates are respectively provided at both ends of the wire pass groove. The multiple sealing plates are arranged along the inner peripheral wall of the wire pass groove, and adjacent sealing plates abut against each other. The second line 404 can pass through the adjacent sealing plates and remain in contact with the sealing plates to form an effective sealing structure.

[0118] It is understandable that the entire body of the line clip is made of elastic material, such as rubber or silicone. The sealing sheet has a certain degree of elasticity. When the second line 404 passes through the adjacent sealing sheet, it can cause the sealing sheet to deform and maintain contact with the second line 404, thus ensuring stable sealing performance.

[0119] The extension direction of the cable tray is consistent with the extension direction of the first cable outlet 4221. In this embodiment, two first cable clips 480 can be provided at the first cable outlet 4221 to seal the high-voltage and low-voltage lines respectively. When the second line 404 passes through the first cable outlet 4221, the second line 404 enters the cable tray, and the two ends of the cable tray are sealed by the sealing plate, which can effectively prevent moisture from entering the electrical control box 400. The specific structure of the second cable clip 490 can refer to the structure of the first cable clip 480 described above. It should be noted that the specific number of the first cable clips 480 and the second cable clips 490 can be selected according to the number of the first cable outlet 4221 and the second cable outlet 4211.

[0120] The electronic control components 411 of the electronic control board 410 include a first heating device, which may be a rectifier bridge, a smart power module, an insulated gate bipolar transistor, etc. In this embodiment, the electronic control board 410 is also provided with a heat sink 700. The heat sink 700 is located on the side of the electronic control board 410 facing the cover and abuts against the heating surface of the first heating device. The heat sink 700 can remove the heat of the first heating device. The heat sink 700 may be a finned heat sink 700. The heat sink 700 may also contact two or more first heating devices at the same time for heat dissipation. For example, the rectifier bridge and the smart power module are arranged adjacent to each other, and the heat sink 700 contacts the heating surfaces of the rectifier bridge and the smart power module, so that the rectifier bridge and the smart power module can be cooled at the same time.

[0121] Referring to Figures 10 and 11, in some embodiments, the first cover 430 is provided with a through hole 431, the size of which matches the size of the heat sink 700, so that the heat sink 700 can pass through the through hole 431, and at least part of the heat sink 700 is exposed on the outside of the first cover 430. A third sealing ring 473 is provided between the radiator 700 and the first cover 430. Part of the structure of the radiator 700 is exposed through the through hole 431. A flange 710 is provided on the outer periphery of the side of the radiator 700 facing the electronic control board 410. The third sealing ring 473 is provided around the radiator 700 and one side of it abuts against the flange 710. When the first cover 430 and the box body 420 are assembled, the first cover 430 abuts against the other side of the third sealing ring 473 and presses the third sealing ring 473 tightly, thereby fixing the third sealing ring 473 and giving the radiator 700 and the first cover 430 a high degree of sealing, thereby improving the overall sealing of the electronic control box 400.

[0122] Understandably, when the control box 400 is located inside the air inlet cavity 101, both the first cover 430 and the radiator 700 face the air inlet cavity 101, and the side of the box body 420 facing away from the control board 410 faces the front of the enclosure 100. When the heat pump device 10 is working, outdoor air enters the air inlet cavity 101 and flows along the air inlet cavity 101 towards the evaporator. Some of the airflow passes through the radiator 700, thereby helping to improve the heat dissipation efficiency of the radiator 700.

[0123] In some embodiments, referring to FIG10, the radiator 700 is disposed at the upper end of the electrical control box 400, and after the electrical control box 400 enters the air inlet cavity 101, the radiator 700 is positioned close to the air inlet 131, which is more conducive to airflow through the radiator 700 and results in better heat dissipation. It should be noted that the airflow carries away the heat from the radiator 700 and then exchanges heat with the evaporator, which can recover the heat carried away by the airflow and improve heating efficiency.

[0124] The embodiments of this application arrange the electronic control element 411, the wiring terminal 412 and the heat sink 700 on the side of the electronic control board 410 facing the first cover 430. This facilitates heat dissipation of the heat sink 700 and wiring of the wiring terminal 412. At the same time, it ensures that the wiring and the heat sink 700 are located on the same side of the electronic control board 410, without the need for special manufacturing processes, which facilitates production and manufacturing.

[0125] It should be noted that the electronic control component 411 also includes a second heat-generating device. This second heat-generating device is a non-encapsulated device that generates heat during operation and requires waterproof protection. Therefore, in some embodiments, the second heat-generating device is housed within the electronic control box 400, and a heat dissipation channel 432 is provided on the electronic control box 400 to dissipate heat from the second heat-generating device. The second heat-generating device can be an inductor 4111 or other heat-generating devices.

[0126] Referring to Figure 10, taking inductor 4111 as an example, inductor 4111 is disposed on the side of the control box 400 facing the first cover 430. A heat dissipation channel 432 is formed on the first cover 430. The first cover 430 is provided with an air inlet 433 and an air outlet 434, which are respectively connected to the heat dissipation channel 432. The air inlet 433 faces the heat sink 700, and the air outlet 434 is disposed on the side wall of the first cover 430. When the control box 400 is flipped into the air inlet cavity 101, the air outlet 434 faces the evaporator. At least a portion of the structure of inductor 4111 is located within the heat dissipation channel 432. The arrows in Figure 10 indicate the direction of airflow along the heat dissipation channel 432.

[0127] When the heat pump device 10 is working, outdoor air enters the air inlet cavity 101 and flows along the air inlet cavity 101 to the evaporator. Part of the airflow passes through the radiator 700, and part of the airflow enters the heat dissipation channel 432 through the air inlet 433 after passing through the radiator 700, and flows along the heat dissipation channel 432 to the inductor 4111, and then is discharged from the air outlet 434.

[0128] It should be noted that, since the evaporator is close to the air outlet 434 of the heat dissipation channel 432, the airflow in the air inlet chamber 101 accelerates the airflow velocity discharged from the air outlet 434 when it passes through the evaporator, creating a suction effect. Therefore, the airflow of the inductor 4111 can be improved through the heat dissipation channel 432. Moreover, since the air inlet 433 faces the heat sink 700, it can also accelerate the airflow velocity through the heat sink 700, which is beneficial to improving the heat dissipation efficiency of the heat sink 700.

[0129] Referring to FIG12, in one embodiment, the guide structure 340 includes a guide rail located within the air outlet cavity 102 and connected to the side plate 120 or the chassis 110. The guide rail is arranged in a direction from the opening 103 toward the inside of the air outlet cavity 102. The fan assembly 300 includes an air duct structure 310, a fan body 320, and a shell 330. The air duct structure 310 is connected within the shell 330, and an air duct is formed within the air duct structure 310. An air inlet 301 and an air outlet 302 are respectively connected to the air duct, and the air outlet is arranged toward the first heat exchanger 220. The fan body 320 is disposed within the air duct. The shell 330 is a sheet metal part that provides protection and support for the air duct structure 310. The shell 330 is connected to the guide rail, allowing the fan assembly 300 to move along the guide rail. It should be noted that after the fan assembly 300 is moved into the air outlet cavity 102, the housing 330 can be fixed to the casing 100 by screws or snap-fit, thereby achieving the positioning purpose of the fan assembly 300. In this embodiment,

[0130] Understandably, during maintenance, after opening panel 140, removing screws allows the fan assembly 300 to be moved out of the air outlet cavity 102 along the guide rail, facilitating maintenance of the fan assembly 300 and cleaning of dust inside the air duct. Furthermore, only one screw needs to be removed to flip the electrical control box 400, with a maximum flip angle of 145°. The wiring terminals 412 of the electrical control board 410 are located on the back of the electrical control box 400, while the external terminal block 460 is located on the front. This allows for easy installation of external equipment; simply opening the second cover 440 of the electrical control box 400 exposes the internal external terminal block 460, eliminating the need to contact the main control board during wiring, thus avoiding interference and damage and maximizing the long-term stable operation of the electrical control box 400. Flipping the electrical control box 400 exposes the internal piping assembly 500 and refrigerant piping, allowing easy access to most internal components from the front, facilitating maintenance and replacement.

[0131] Referring to Figure 13, the air duct structure 310 includes a volute 311, a guide plate 312, and a reinforcing structure 313. The volute 311 forms an air duct, and an opening is provided on one side of the volute 311 for the fan body 320 to enter or exit the air duct. The fan body 320 includes a motor and a fan impeller 321 connected to the drive shaft of the motor. The guide plate 312 covers the opening, and an air inlet 301 is formed on the guide plate 312. The guide plate 312 is vertically arranged, and the opening is circular, which matches the shape of the fan impeller 321. The shell portion 330 and the guide plate 312 form a cavity for accommodating the volute 311. The shell portion 330 is used to connect with the fan and can stably support the fan.

[0132] The shell portion 330 covers the side of the volute 311 facing away from the air guide plate 312. The shell portion 330 includes a front side plate 120, a rear side plate 120, a lower side plate 120, and a left side plate 120 that are connected to each other. The axis of the volute 311 is set in the left-right direction. During assembly, the volute 311 can be installed into the shell portion 330 from right to left. The lower side plate 120 supports the volute 311, the front side plate 120 and the rear side plate 120 block the volute 311 in the front-back direction, and the left side plate 120 blocks the left side of the volute 311, which plays a limiting and protective role for the volute 311. The fan is connected to the left side plate 120. The shell portion 330 is a sheet metal part, while the volute 311 and the air guide plate 312 are foam parts with low thermal conductivity, which can play a role in heat preservation. The hardness of the shell portion 330 is greater than that of the foam part, and the shell portion 330 can play a protective role for the volute 311.

[0133] In some embodiments, a reinforcing structure 313 can be provided on the air guide plate 312. The hardness of the reinforcing structure 313 is greater than that of the volute 311 and the air guide plate 312, meaning that the structural strength of the reinforcing structure 313 is greater, thus protecting the air guide plate 312. When the air guide plate 312 is subjected to bending or impact forces, the reinforcing structure 313 can provide support and protection, preventing the air guide plate 312 from easily bending and breaking, thereby protecting the air guide plate 312. The reinforcing structure 313 can be made of plastic or metal. Plastic parts have better thermal insulation, while sheet metal parts have greater hardness and better protection. However, it is not limited to these; the reinforcing structure 313 can also be made of other materials, as long as the structural strength of the reinforcing structure 313 is greater than that of the foam.

[0134] To prevent the cold air inside the cavity from coming into contact with the relatively high indoor temperature and thus causing condensation, it is understood that in the embodiments of this application, the chassis 110, side panels 120, front panel 140, and top cover 130 are each provided with an insulation layer. For example, in this embodiment, the insulation layer is a foam component, which can be foamed and molded according to the specific shape and size of the chassis 110, side panels 120, and top cover 130, thereby ensuring that each foam component can match its corresponding part.

[0135] It is understood that in this embodiment, the insulation layer is set on the outside of the heat pump equipment 10, forming a heat insulation barrier, thereby isolating the cabinet 100 from the indoor environment. Therefore, the temperature of the chassis 110, side panel 120, panel 140 and top cover 130 will not rise with the higher indoor temperature, preventing the cabinet 100 from being affected by two airs with large temperature differences at the same time. Even if the cold air in the inner cavity comes into contact with the chassis 110, side panel 120 and top cover 130, it is not easy to generate condensation, thereby reducing the possibility of condensation on the outer surface of the cabinet 100.

[0136] Referring to Figure 14, in this embodiment of the application, the insulation layer of the chassis 110 is a first insulation layer 113, which is disposed on the chassis 110. Specifically, in this embodiment, the chassis 110 has a split structure, including a water receiving tray 111 and a support tray 112. The water receiving tray 111 and the support tray 112 are arranged along the height direction of the housing 100 assembly. The water receiving tray 111 is located above the support tray 112, that is, the water receiving tray 111 is located on the relatively inner side, and it is in direct contact with the cold air in the inner cavity. Therefore, the temperature of the water receiving tray 111 is relatively low. Correspondingly, the support tray 112 is located on the relatively outer side, and it is in direct contact with the indoor environment. Therefore, the temperature of the support tray 112 is relatively higher.

[0137] In one example, the water receiving tray 111 is made of metal, while the support tray 112 is made of plastic. To prevent heat transfer from the water receiving tray 111 to the support tray 112, in this embodiment, a first insulation layer 113 is disposed between the water receiving tray 111 and the support tray 112, thereby separating them and preventing heat transfer from the water receiving tray 111 to the support tray 112. Specifically, the upper surface of the first insulation layer 113 is adapted to the lower end surface of the water receiving tray 111, thus covering the lower end surface of the water receiving tray 111; the lower surface of the first insulation layer 113 is adapted to the upper end surface of the support tray 112, thus covering the upper end surface of the support tray 112.

[0138] Referring to FIG14, in an embodiment of this application, in order to improve the water collection capacity of the water receiving tray 111 and reduce the risk of water leakage from the edge of the water receiving tray 111, a first periphery 1121 is provided on the outer periphery of the water receiving tray 111. The first periphery 1121 protrudes upward from the upper surface of the water receiving tray 111, thereby preventing water overflow. A second periphery 1121 is formed by protruding upward from the outer periphery of the support tray 112. The second periphery 1121 and the upper surface of the support tray 112 define a receiving groove 1122. To reduce the contact between the first edge 1121 and the second edge 1121, a third edge 1131 is provided on the outer periphery of the first insulation layer 113. The third edge 1131 is located between the first edge 1121 and the second edge 1121, thereby separating the first edge 1121 and the second edge 1121, avoiding direct contact between the first edge 1121 and the second edge 1121, and preventing the water receiving tray 111 from transferring cold to the support tray 112.

[0139] To connect the water receiving tray 111, the first insulation layer 113, and the support plate 112, in embodiments of this application, the chassis 110 further includes multiple connectors. The number of connectors can be 4, 5, 6, etc., and they are evenly arranged on the water receiving tray 111, with intervals between them. In one example, four connectors are provided, each positioned near the edge of the water receiving tray 111, thereby minimizing contact between the connectors and the cold air in the inner cavity.

[0140] In the embodiments of this application, the connector is sequentially inserted through the water receiving tray 111, the first insulation layer 113, and the support plate 112 along the direction from the water receiving tray 111 towards the support plate 112. In one example, one end of the connector is connected to the water receiving tray 111, and the other end extends downward and protrudes from the lower end face of the water receiving tray 111. When assembling the chassis 110, assembly can be completed simply by sequentially fitting the first insulation layer 113 and the support plate 112 into the connector, reducing the assembly difficulty of the chassis 110.

[0141] In the embodiments of this application, one end of the connector is fixedly connected to the water receiving tray 111, and the other end is fixedly connected to the support plate 112. The water receiving tray 111 and the support plate 112 are indirectly connected through the connector, thereby clamping the first insulation layer 113 and improving the overall structural stability of the chassis 110. It should be noted that the connector can be welded to the water receiving tray 111 or connected to the water receiving tray 111 by fasteners; the connector and the support plate 112 can be connected by fasteners or by snap-fit, and this embodiment does not limit this.

[0142] It is understood that in the embodiments of this application, the water receiving tray 111 and the support tray 112 are connected only by a connector. This not only ensures that the first insulation layer 113 can be securely clamped between the water receiving tray 111 and the support tray 112, and continuously maintains the interval between the water receiving tray 111 and the support tray 112, but also effectively reduces the direct contact area between the water receiving tray 111 and the support tray 112, minimizing the connection between the water receiving tray 111 and the support tray 112, thereby further reducing the possibility of heat transfer from the water receiving tray 111 to the support tray 112.

[0143] Referring to FIG14, in an embodiment of this application, a water collection trough 1111 for collecting water is formed by a recess in the center of the water receiving tray 111. In order to prevent the connector from being soaked in condensate for a long time, in this embodiment, the upper end of the connector is configured to be higher than the water collection trough 1111 along the height direction of the housing 100 assembly. This not only reduces the risk of the connector being corroded by condensate and extends the service life of the connector, but also prevents condensate from flowing along the connector. Specifically, it prevents condensate from penetrating into the first insulation layer 113, reducing the risk of condensate eroding the first insulation layer 113 and causing its insulation performance to decline. It also prevents condensate from flowing to the support plate 112 and lowering the temperature of the support plate 112, thereby reducing the possibility of additional condensate generation.

[0144] Referring to FIG15, in an embodiment of this application, the chassis 110 further includes a plurality of foot pads 115, the number of which is the same as the number of connecting members. Therefore, the foot pads 115 and connecting members are arranged in a one-to-one correspondence. Specifically, the foot pads 115 are disposed on the lower side of the support plate 112. One end of the connecting member is fixed to the water receiving tray 111, and the other end protrudes from the lower end face of the support plate 112. Therefore, the foot pads 115 are connected to the end of the connecting member protruding from the support plate 112. When the foot pads 115 are connected to the connecting members, they can abut against the support plate 112. The plurality of foot pads 115 can cooperate to support the chassis 110.

[0145] In one example, the foot pad 115 is made of rubber and can be placed directly on the indoor floor or mounted on a support structure such as a bracket. Understandably, the foot pad 115 is designed to prevent the chassis 110 from transferring heat to the indoor floor or its mounted support structure.

[0146] It should be noted that the chassis 110 is equipped with an inlet 116 and an outlet 117. The inlet 116 is connected to the inlet pipe 520, and the outlet 117 is connected to the outlet pipe 530. The outlet 117 is used for external piping to supply domestic hot water and hot water for space heating. Because the chassis 110 has four feet 115 on its underside, the unit can be raised to protect the inlet 116 and outlet 117, preventing damage to them when the unit is placed directly on the ground during transportation.

[0147] Referring to Figure 16, the insulation layer of the top cover 130 is a second insulation layer 135. The second insulation layer 135 is located on the lower side of the top cover 130 and covers the lower end surface of the top cover 130, thereby separating the top cover 130 from the inner cavity and preventing the cold air in the inner cavity from directly contacting the top cover 130. In order to match the top cover 130, the second insulation layer 135 has two through slots 1351 arranged side by side. The two through slots 1351 are respectively arranged corresponding to the air outlet 132. One through slot 1351 is connected to the air inlet 131, and the other through slot 1351 is connected to the air outlet 132.

[0148] Specifically, in the embodiments of this application, the inner wall of the through groove 1351 and the upper end face of the second insulation layer 135 are transitionally connected by a step 1352. Correspondingly, the lower end face of the top cover 130 is provided with two connecting portions corresponding one-to-one with the two through grooves 1351. The two connecting portions are annular structures protruding downward from the lower end face of the top cover 130. Based on this, the cross-section of the step 1352 is also annular. The connecting portions pass through the through grooves 1351 and are at least partially located on the step 1352. In one example, the lower end face of the connecting portion is in contact with the upper end face of the step 1352.

[0149] The lower end of the top cover 130 protrudes downward to form multiple positioning posts, which are spaced apart. Correspondingly, the upper end of the second insulation layer 135 is recessed downward to form multiple positioning grooves 1353. The positioning grooves 1353 are corresponding to the positioning posts, and the positioning posts pass through the positioning grooves 1353 and are interference-fitted with the positioning grooves 1353, thereby achieving a fixed connection between the top cover 130 and the second insulation layer 135.

[0150] In one example, four positioning posts are provided, and the top cover 130 is generally square plate-shaped. Based on this, the four positioning posts can be arranged near the four corners of the top cover 130, thereby dispersing the connection stress and further enhancing the stability of the connection. It can be understood that, compared with the method of connection relying on fasteners, the interference fit between the positioning posts and the positioning grooves 1353 not only simplifies the assembly process of the second insulation layer 135, but also minimizes the heat exchange between the top cover 130 and the cold air in the inner cavity, thereby improving the insulation performance of the second insulation layer 135.

[0151] In some embodiments, the insulation layer further includes an insulation element 136, which matches the shape of the upper side of the top cover 130.

[0152] Specifically, referring to FIG16, the heat insulation component 136 includes a bonding portion 1361 and two surrounding portions 1362. The bonding portion 1361 has a plate-like structure and is bonded to the upper end surface of the top cover 130. It should be noted that in this embodiment, the bonding portion 1361 may completely cover the upper end surface of the top cover 130, or it may only cover a portion of the upper end surface of the top cover 130 based on appearance requirements. This embodiment does not limit this.

[0153] Two surrounding portions 1362 are spaced apart from and extend through the fitting portion 1361. The surrounding portions 1362 can form a slot through which the air guide ring 133 passes, and the air guide ring 133 passes through the slot. It can be understood that the surrounding portions 1362 wrap around the outside of the air guide ring 133, and the surface of the upper end face of the top cover 130 near the air guide ring 133 is covered with the fitting portions 1361. Therefore, the insulation member 136 can reduce the heat exchange between the cold air flowing through the air inlet 131 and the air outlet 132 and the indoor environment, thereby reducing the possibility of condensation on the upper side of the top cover 130.

[0154] Referring to FIG17, in this embodiment of the application, the insulation layer of the side panel 120 is a third insulation layer 121. The third insulation layer 121 is disposed on the inner side of the side panel 120, covering the inner surface of the side panel 120, and a second filler layer (not shown in the figure) is filled between the third insulation layer 121 and the side panel 120. It can be understood that the third insulation layer 121 can separate the side panel 120 from the inner cavity, preventing cold air in the inner cavity from directly contacting the side panel 120. In this embodiment, the second filler layer can be adhesive or sponge, and this embodiment is not limited to either. The second filler layer can fill the gap between the inner surface of the side panel 120 and the third insulation layer 121, thereby improving the sealing between the side panel 120 and the third insulation layer 121, and thus improving the insulation performance of the third insulation layer 121.

[0155] Referring to FIG18, in this embodiment of the application, the insulation layer of panel 140 is a fourth insulation layer 141. The fourth insulation layer 141 is disposed on the inner side of panel 140, covering the inner surface of panel 140, and a third filler layer (not shown in the figure) is filled between the fourth insulation layer 141 and panel 140. It can be understood that the fourth insulation layer 141 can separate panel 140 from the inner cavity, preventing cold air in the inner cavity from directly contacting panel 140. In this embodiment, the third filler layer can be adhesive or sponge, and this embodiment is not limited to either. The third filler layer can fill the gap between the inner surface of panel 140 and the fourth insulation layer 141, thereby improving the sealing between panel 140 and the fourth insulation layer 141, and thus improving the insulation performance of the fourth insulation layer 141.

[0156] Referring to FIG17, in an embodiment of this application, the housing 100 assembly further includes a bracket 160, wherein the bracket 160 is disposed on the inner side of the side plate 120, and the third insulation layer 121 is disposed between the bracket 160 and the side plate 120. In this embodiment, a first mounting portion 161 is provided on the upper side of the bracket 160, and the upper end of the side plate 120 is fixedly connected to the first mounting portion 161. It should be noted that the side plate 120 and the first mounting portion 161 can be connected by fasteners, by welding, or by other types of fixed connection methods; this embodiment does not limit this.

[0157] In this embodiment, a second mounting portion 162 is provided on the lower side of the bracket 160, and the lower end of the side plate 120 is fixedly connected to the second mounting portion 162. It should be noted that the side plate 120 and the second mounting portion 162 can be connected by fasteners, by welding, or by other types of fixed connection methods; this embodiment does not limit this. It is understood that in this embodiment, by connecting the side plate 120 to the first mounting portion 161 and the second mounting portion 162 respectively, the third insulation layer 121 is clamped, improving the overall structural stability.

[0158] Considering that both the first mounting portion 161 and the second mounting portion 162 are directly exposed to the cold air in the inner cavity, the first mounting portion 161 and the second mounting portion 162 will transfer cold to the side plate 120, resulting in condensation on the surface of the side plate 120. Therefore, in this embodiment, a baffle is formed by protruding from the lower end face of the third insulation layer 121. The baffle is arranged circumferentially along the side plate 120, located on the side of the first mounting portion 161 facing the inner cavity, and is in contact with the first mounting portion 161, thereby separating the first mounting portion 161 from the inner cavity and preventing the cold air in the inner cavity from directly contacting the first mounting portion 161.

[0159] Embodiments of this application also provide a hot water heating system, including the heat pump device 10 described in the above embodiments. The heat pump device 10 can be connected to external devices such as a gas-fired wall-hung boiler, an electric heater, or a water tank to form a hot water heating system, providing users with domestic hot water and heating hot water.

[0160] Since the hot water heating system adopts all the technical solutions of the heat pump equipment 10 in the above embodiments, it has at least all the beneficial effects brought about by the technical solutions in the above embodiments, which will not be repeated here.

[0161] Of course, this application is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A heat pump device, comprising: The housing has an air inlet and an air outlet, and the front side of the housing has an opening and a removable panel covering the opening; A heat pump assembly includes a compressor, a first heat exchanger, a second heat exchanger, and refrigerant piping. The first heat exchanger is located inside the housing and divides the inner cavity of the housing into an air inlet cavity and an air outlet cavity. The air inlet cavity is connected to the air inlet. The compressor and the second heat exchanger are located inside the air inlet cavity. The second heat exchanger includes a refrigerant flow path and a water flow path. The refrigerant flow path, the compressor, and the first heat exchanger are connected through the refrigerant piping to form a refrigerant circulation loop. A fan assembly is disposed inside the air outlet cavity, and the exhaust port of the fan assembly is connected to the air outlet. A piping assembly is disposed within the air inlet cavity, and the piping assembly includes a water pump, an inlet pipe, and an outlet pipe connected to the water flow pipeline; as well as An electrical control box is located inside the air inlet cavity. The electrical control box, the piping assembly, and the compressor are arranged sequentially from the front to the rear of the housing.

2. The heat pump device according to claim 1, wherein, The electrical control box is rotatably connected to the housing. The electrical control box can be flipped to move into the air inlet cavity through the opening, or to move out of the air inlet cavity through the opening to expose the second heat exchanger, the refrigerant pipeline, and the pipeline assembly.

3. The heat pump device according to claim 1 or 2, wherein, The housing includes a chassis, side panels, a top cover, and a front panel. One side of the side panel has an opening. The chassis and the top cover are respectively connected to both ends of the side panel. The heat pump device also includes a hinge structure, through which the electrical control box is rotatably connected to one of the chassis, the side plate, and the top cover.

4. The heat pump device according to claim 3, wherein, The electrical control box is arranged along the height direction of the enclosure, and one side of the electrical control box is connected to the side plate via the hinge structure; and The hinge structure includes a first hinge and a second hinge that are detachably connected. The first hinge is fixed to the electrical control box, and the second hinge is fixed to the housing. One of the first hinge and the second hinge is provided with a shaft hole, and the other is provided with a hinge shaft that is rotatably connected to the shaft hole.

5. The heat pump device according to any one of claims 1 to 4, wherein, The electrical control box includes: The box body has a first lid and a second lid on opposite sides, with the first lid forming a first receiving cavity and the second lid forming a second receiving cavity. An electronic control board is disposed within the first receiving cavity, and the side of the electronic control board facing the first cover has multiple wiring terminals; and A wiring assembly includes an inner terminal block and an outer terminal block connected to each other. The inner terminal block is disposed in the first receiving cavity, and the outer terminal block is disposed in the second receiving cavity. The inner terminal block is electrically connected to the terminal block via a first line, and the outer terminal block is used to connect to an external second line. The box body is provided with a first outlet for the second line to pass through, and sealing elements are respectively provided between the first box cover and the box body, between the second box cover and the box body, and at the first outlet.

6. The heat pump device according to claim 5, wherein, The sealing element between the first box cover and the box body is a first sealing ring, which is arranged along the periphery of the box body; one of the first box cover and the box body is provided with a first recess that matches the first sealing ring, and the other is provided with a first protrusion that is opposite to the first recess and abuts against the first sealing ring.

7. The heat pump device according to claim 5 or 6, wherein, The sealing element between the second cover and the box body is a second sealing ring. A groove is formed on the side of the box body away from the electronic control board. The groove has a second recess that matches the second sealing ring along the circumferential direction of the groove opening. The second cover plate covers the groove and abuts against the second sealing ring to define the second receiving cavity.

8. The heat pump device according to any one of claims 5 to 7, wherein, The control board has an electronic control component and a heat sink on the side facing the first cover. The electronic control component includes a heating element, and the heat sink is connected to the control board and abuts against the heating surface of the heating element. The first box cover has a through hole, through which the heat sink protrudes and is at least partially exposed on the outside of the first box cover. A third sealing ring is provided between the heat sink and the first box cover.

9. The heat pump device according to any one of claims 1 to 8, wherein, The enclosure includes a chassis, side panels, a top cover, and a front panel. The side panel has an opening on one side. The chassis and the top cover are respectively connected to the two ends of the side panel. The chassis, side panels, front panel, and top cover are each provided with a heat insulation layer.

10. The heat pump device according to claim 8, wherein, The chassis has a first insulation layer. The chassis includes a water receiving tray and a support tray. The water receiving tray is located on the upper side of the support tray. The first insulation layer is located between the water receiving tray and the support tray. One side of the first insulation layer covers the lower end surface of the water receiving tray, and the other side covers the upper end surface of the support tray, so as to separate the water receiving tray and the support tray.

11. The heat pump device according to claim 10, wherein, The chassis also includes multiple connectors, which pass through the water receiving tray, the first insulation layer, and the support plate. The water receiving tray and the support plate are respectively fixedly connected to the connectors to clamp the first insulation layer; and The end of the connector away from the water receiving tray protrudes from the support plate. The chassis also includes a plurality of foot pads, which are located on the underside of the support plate and connected to the end of the connector that protrudes from the support plate.

12. The heat pump device according to any one of claims 9 to 11, wherein, The insulation layer of the top cover is a second insulation layer, which covers the lower end surface of the top cover. The second insulation layer has two through slots, one of which communicates with the air inlet and the other with the air outlet; and The lower end face of the top cover is provided with a plurality of positioning posts spaced apart, and the second insulation layer is provided with a plurality of positioning grooves corresponding to the plurality of positioning posts. The positioning posts pass through the positioning grooves and are interference-fitted with the positioning grooves.

13. The heat pump device according to any one of claims 9 to 12, wherein, The insulation layer of the side panel is a third insulation layer, and the insulation layer of the panel is a fourth insulation layer. The third insulation layer covers the inner surface of the side panel, and the fourth insulation layer covers the inner surface of the panel. The housing assembly also includes a bracket located on the side of the side plate facing the inner cavity. The upper side of the bracket is provided with a first mounting part, and the lower side of the bracket is provided with a second mounting part. The third insulation layer is located between the bracket and the side plate. The side plate is connected to the first mounting part and the second mounting part respectively to clamp the fourth insulation layer.

14. The heat pump device according to any one of claims 1 to 13, wherein, The fan assembly includes a duct structure and a fan body. The duct structure has a duct, an air inlet, and an air outlet. The air inlet and the air outlet are respectively connected to the duct. The air inlet is oriented towards the first heat exchanger. The fan body is disposed within the duct. The heat pump equipment also includes a guide structure, and the air duct structure is connected to the housing through the guide structure. The guide structure is used to guide the fan assembly to move into or out of the air outlet cavity through the opening.

15. The heat pump device according to claim 14, wherein, The air duct structure includes a volute and a guide plate. The air duct is formed inside the volute. The volute has an opening on the side facing the first heat exchanger. The guide plate covers the opening. The air inlet is formed on the guide plate. as well as The fan assembly also includes a shell portion, which, together with the air guide plate, forms a cavity for accommodating the volute. The shell portion is connected to the guide structure. Both the volute and the air guide plate are made of foam, while the shell portion is made of metal.

16. A hot water heating system comprising the heat pump device as described in any one of claims 1 to 15.

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