Electric control box assembly and heat pump water heater

Abstract

The utility model relates to a heating and ventilation equipment technical field, concretely relates to a kind of electric control box assembly and heat pump water heater.The electric control box assembly includes electric control box body, first mounting plate and second mounting plate, electric control box body is formed with the installation cavity with opening, and electric control box body includes the first wall being set to opposite opening, first mounting plate is located in installation cavity and is connected to first wall, first mounting plate is installed with first circuit board, second mounting plate is located in installation cavity and is connected to electric control box body, along first direction, second mounting plate is spaced apart from first mounting plate, first circuit board is located between first mounting plate and second mounting plate, second mounting plate is installed with second circuit board on the side away from first mounting plate, wherein, first direction is the direction of first mounting plate to first wall.According to the electric control box assembly of the utility model, two circuit boards are arranged in front and back layer in limited installation cavity space, so as to significantly improve the utilization efficiency of electric control box internal space.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning equipment technology, specifically to an electrical control box assembly and a heat pump water heater. Background Technology

[0002] Swimming pool heat pump equipment is commonly used for heating and temperature control of large swimming pools. It contains an internal electrical control system to manage various functional modules. In related technologies, the electrical control system is typically integrated into the unit's control box, which needs to house the main control circuit board, power supply module, and other electrical components. With increasing functional integration, some models require more than two circuit boards to meet design requirements such as separation of control and power, and separation of communication and drive functions.

[0003] However, due to the limited internal space of the pool unit, the installation space left for the electrical control box is relatively narrow. Under the existing structure, it is often difficult to reasonably install multiple circuit boards in a limited space, resulting in a compact electrical layout and small spacing between components, which not only affects heat dissipation performance but also increases the risk of short circuits. Utility Model Content

[0004] The purpose of this invention is to solve at least one problem: how to improve the space utilization of an electrical control box within a limited space, so as to achieve a compact arrangement of at least two circuit boards. This objective is achieved through the following technical solution:

[0005] The first aspect of this utility model provides an electrical control box assembly, comprising:

[0006] The electrical control box body has an opening in the mounting cavity, and the electrical control box body includes a first wall disposed opposite to the opening;

[0007] A first mounting plate is disposed in the mounting cavity and connected to the electrical control box body. A first circuit board is mounted on the side of the first mounting plate away from the first wall.

[0008] The second mounting plate is disposed in the mounting cavity and connected to the electrical control box body. Along the first direction, the second mounting plate is spaced apart from the first mounting plate. A second circuit board is mounted on the side of the second mounting plate opposite to the first mounting plate. The first direction is the direction from the first mounting plate to the first wall.

[0009] According to the electrical control box assembly of this utility model, a first mounting plate is disposed on the first wall of the electrical control box body, and a second mounting plate is arranged parallel and spaced apart in front of the first mounting plate. The first mounting plate carries the first circuit board, and the second mounting plate carries the second circuit board, enabling the two circuit boards to be stacked in a front-to-back arrangement within a limited mounting cavity space, thereby significantly improving the utilization efficiency of the internal space of the electrical control box. Compared with the traditional method of fixing multiple circuit boards horizontally side by side or stacked, this utility model avoids direct stacking interference between circuit boards through the layered arrangement of double mounting plates. This ensures the stable installation of each circuit board and also reserves reasonable wiring and heat dissipation spacing, effectively improving the compactness and practicality of the electrical control box assembly, and providing greater spatial adaptability for the integration of multi-functional modules.

[0010] In addition, the electrical control box assembly according to this utility model may also have the following additional technical features:

[0011] In some embodiments of this utility model, the first wall is provided with a mounting groove, the first mounting plate is installed in the mounting groove, and is detachably connected to the bottom wall of the mounting groove.

[0012] In some embodiments of this utility model, the bottom wall of the mounting groove is provided with a heat dissipation vent, the first mounting plate is covered by the heat dissipation vent, and a heat dissipation component is provided on the side of the first mounting plate facing the heat dissipation vent, the heat dissipation component protruding from the heat dissipation vent.

[0013] In some embodiments of this utility model, the second mounting plate includes a first plate body, a second plate body, and a third plate body, wherein the second plate body and the third plate body are respectively disposed on opposite sides of the first plate body;

[0014] The second circuit board is mounted on the side of the first plate away from the first wall. The second plate extends along the thickness direction of the first plate toward the direction close to the first wall and is detachably connected to the first wall. The third plate extends along the thickness direction of the first plate toward the direction away from the first wall and is detachably connected to the side wall of the electrical control box body.

[0015] In some embodiments of this utility model, a support member is provided on the side of the first plate away from the first wall, the second circuit board is connected to the support member, and there is a gap between the second circuit board and the first plate.

[0016] In some embodiments of this utility model, the first mounting plate and the second mounting plate are offset along a second direction, and the second direction intersects with the first direction.

[0017] In some embodiments of this utility model, the electrical control box assembly further includes an electrical control box mounting plate, the electrical control box body is connected to the electrical control box mounting plate, and is configured to be rotatable relative to the electrical control box mounting plate.

[0018] In some embodiments of this utility model, the electrical control box body includes a second wall, which is connected to the first wall, and a plurality of wiring ports are provided on the second wall.

[0019] In some embodiments of this utility model, the electrical control box assembly further includes a cover, which is connected to the electrical control box body and is used to seal the opening.

[0020] In some embodiments of this utility model, the electrical control box assembly has a third mounting plate, which is spaced apart from the first mounting plate and the second mounting plate, and an inductor is mounted on the third mounting plate, which is spaced apart from the first circuit board and the second circuit board.

[0021] In some embodiments of this utility model, the inductor is thermally connected to the electrical control box body.

[0022] In some embodiments of this utility model, the inductor is spaced apart from the first circuit board along the first direction, and / or the inductor is spaced apart from the second circuit board along the second direction, the second direction intersecting the first direction.

[0023] In some embodiments of this utility model, the inductor is spaced apart from the first circuit board along a first direction.

[0024] In some embodiments of this utility model, the electrical control box assembly includes a terminal block, the electrical control box body includes a top wall and a bottom wall disposed opposite to each other along the second direction, the second direction being perpendicular to the second direction, the inductor being connected to the top wall, and the terminal block being connected to the bottom wall.

[0025] The second aspect of this utility model discloses a heat pump water heater, comprising:

[0026] Box;

[0027] The aforementioned electrical control box assembly is at least partially located inside the housing.

[0028] In some embodiments of this utility model, the heat pump water heater further includes a wired controller assembly, which is located above the electrical control box assembly along the height direction of the housing, and the wired controller assembly and the electrical control box assembly are electrically connected.

[0029] In some embodiments of this utility model, the housing has a first side and a second side connected to each other, and an included angle region is formed between the first side and the second side. The wired controller assembly is disposed on the first side, and the electrical control box assembly is disposed in the included angle region. Attached Figure Description

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0031] Figure 1 An exploded view of the electrical control box assembly according to an embodiment of the present invention is shown schematically.

[0032] Figure 2 An exploded view of the electrical control box body and the electrical control box mounting plate according to an embodiment of the present invention is shown schematically.

[0033] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0034] Figure 4 A schematic diagram of the structure of the second mounting plate according to an embodiment of the present invention is shown;

[0035] Figure 5 A schematic diagram of the structure of a portion of the electrical control box assembly according to an embodiment of the present invention is shown.

[0036] Figure 6 A schematic diagram of a heat pump water heater according to an embodiment of the present invention is shown from a first-view perspective.

[0037] Figure 7 A schematic diagram of a heat pump water heater according to an embodiment of the present invention is shown from a second perspective.

[0038] Figure 8 A partial structural schematic diagram of a heat pump water heater according to an embodiment of the present invention is shown from a third perspective.

[0039] Figure 9 A partial structural schematic diagram of a heat pump water heater according to an embodiment of the present invention is shown from a fourth perspective.

[0040] The attached figures are labeled as follows:

[0041] 1. Heat pump water heater; 10. Housing; 11. First side; 12. Second side; 20. First heat exchanger; 30. Second heat exchanger; 40. Compressor; 50. Electrical control box assembly; 51. Electrical control box body; 511. Mounting cavity; 512. Electrical control box mounting plate; 5121. Limiting port; 513. Rotating component; 514. Heat dissipation vent; 515. Wiring port; 516. Mounting groove; 517. First wall; 518. Second wall; 52. Box cover; 53. First circuit board; 531. First mounting plate; 532. Heat dissipation fins; 54. Second circuit board; 541. Second mounting plate; 5411. First plate body; 5412. Second plate body; 5413. Third plate body; 5414. Support component; 55. Terminal block; 56. Inductor; 57. Third mounting plate; 60. Fan assembly; 70. Wired controller assembly. Detailed Implementation

[0042] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0043] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0044] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0045] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0046] like Figures 1 to 5 As shown, according to an embodiment of the present invention, an electrical control box assembly 50 is proposed. The electrical control box assembly 50 includes an electrical control box body 51, a first mounting plate 531, and a second mounting plate 541. The electrical control box body 51 has an opening in its mounting cavity 511, and the electrical control box body 51 includes a first wall 517 disposed opposite to the opening. The first mounting plate 531 is disposed in the mounting cavity 511 and connected to the first wall 517. A first circuit board 53 is mounted on the side of the first mounting plate 531 away from the first wall 517. The second mounting plate 541 is disposed in the mounting cavity 511 and connected to the electrical control box body 51. Along a first direction, the second mounting plate 541 is parallel to and spaced apart from the first mounting plate 531. The first circuit board 53 is located between the first mounting plate 531 and the second mounting plate 541. A second circuit board 54 is mounted on the side of the second mounting plate 541 away from the first mounting plate 531. The first direction is the direction from the first mounting plate 531 to the first wall 517.

[0047] According to the electrical control box assembly 50 of this utility model, a first mounting plate 531 is disposed at the first wall 517 of the electrical control box body 51, and a second mounting plate 541 is arranged parallel and spaced apart in front of the first mounting plate 531. The first mounting plate 531 carries the first circuit board 53, and the second mounting plate 541 carries the second circuit board 54, so that the two circuit boards can be stacked in a front-to-back arrangement within the limited space of the mounting cavity 511, thereby significantly improving the utilization efficiency of the internal space of the electrical control box. Compared with the traditional method of fixing multiple circuit boards horizontally side by side or stacked, this utility model avoids direct stacking interference between circuit boards through the layered arrangement of double mounting plates, which not only ensures the stable installation of each circuit board, but also reserves reasonable wiring and heat dissipation spacing, effectively improving the compactness and practicality of the electrical control box assembly 50, and providing greater spatial adaptability for the integration of multi-functional modules.

[0048] It is understandable that, such as Figure 1As shown, arrow x indicates the first direction, and arrow y indicates the second direction.

[0049] In some embodiments, the first wall 517 is provided with a mounting groove 516, and the first mounting plate 531 is installed in the mounting groove 516 and detachably connected to the bottom wall of the mounting groove 516. Preferably, the mounting groove 516 is a rectangular recessed structure located on the inner side of the first wall 517. The bottom surface of the mounting groove 516 is provided with multiple screw holes, and the first mounting plate 531 is connected to the bottom surface of the groove by screws, forming a stable and detachable installation relationship. The surrounding walls of the mounting groove 516 may be provided with positioning protrusions or limiting ribs to assist the first mounting plate 531 in achieving precise positioning and preventing displacement during installation.

[0050] By setting a mounting groove 516 on the first wall 517 and embedding the first mounting plate 531 into the mounting groove 516, not only is the stable installation and precise positioning of the first mounting plate 531 achieved, but the mounting space of the circuit board is also further embedded into the housing wall. Compared with the traditional method of suspending the mounting plate in the middle of the mounting cavity 511, this significantly saves the internal depth space of the mounting cavity 511. This structure allows multiple circuit boards in the electrical control box assembly 50 to be efficiently distributed at different levels, freeing up more effective arrangement space for structures such as the second mounting plate, heat sink, and wiring components. This improves the overall structural compactness and space utilization efficiency of the electrical control box assembly 50, making it particularly suitable for heat pump water heaters with limited space or high requirements for multi-functional integration.

[0051] Furthermore, the bottom wall of the mounting groove 516 is provided with a heat dissipation vent 514. The first mounting plate 531 is installed inside the mounting groove 516 and seals the heat dissipation vent 514, forming an inner seal on the heat dissipation vent 514. A heat dissipation component, preferably a heat sink, heat sink block, or thermally conductive structure, is provided on the side of the first mounting plate 531 facing the heat dissipation vent 514. The heat dissipation component is disposed between the first mounting plate 531 and the heat dissipation vent 514, and is arranged correspondingly to the position of the heat dissipation vent 514, and at least partially protrudes from the heat dissipation vent 514 to the outside of the electrical control box body 51, so as to achieve direct heat exchange with the external air or external heat dissipation structure. Preferably, the heat dissipation component is installed on the first mounting plate 531 by means of thermally conductive adhesive, screw connection, or integral molding, and is located on the heat conduction path relative to the back of the heating element of the first circuit board 53. The heat dissipation component protrudes from the heat dissipation vent 514 on the bottom wall of the mounting groove 516, and is directly exposed to the external airflow field, which greatly enhances the heat dissipation and ventilation effect and avoids heat accumulation in the mounting cavity 511.

[0052] In some embodiments, the first mounting plate 531 is detachably connected to the first wall 517 of the electrical control box body 51, and the second mounting plate 541 is also detachably connected to the electrical control box body 51. Specifically, the detachable connection is a screw-in structure, meaning that the first mounting plate 531 and / or the second mounting plate 541 are connected to pre-drilled threaded holes on the side wall of the first wall 517 or the electrical control box body 51 using screws. By setting the connection between the first mounting plate 531 and the first wall 517, and between the second mounting plate 541 and the electrical control box body 51, the mounting structure of the two circuit boards inside the electrical control box has good modularity and maintainability. When users or maintenance personnel need to replace or repair a circuit board, they can quickly remove the corresponding mounting plate by removing the screws, without having to disassemble the entire electrical control box or other unrelated components, significantly improving maintenance efficiency and reducing maintenance difficulty. At the same time, the screw-in connection has good connection stability and shock resistance, making it suitable for equipment such as the heat pump water heater 1 that operates for long periods in complex environments, ensuring a robust and reliable structure.

[0053] Furthermore, the second mounting plate 541 includes a first plate 5411, a second plate 5412, and a third plate 5413. The second plate 5412 and the third plate 5413 are respectively disposed on opposite sides of the first plate 5411, forming a T-shaped or zigzag three-dimensional support structure. The second plate 5412 extends along the thickness direction of the first plate 5411 towards the first wall 517 and is detachably connected to the first wall 517. The third plate 5413 extends along the thickness direction of the first plate 5411 towards the direction away from the first wall 517 and is detachably connected to the electrical control box body 51. The connection of the second plate 5412 to the first wall 517 and the connection of the third plate 5413 to the electrical control box body 51 achieves a separate installation logic, facilitating partial disassembly during maintenance without affecting the overall structure, and reducing maintenance difficulty and time costs.

[0054] Specifically, the second plate 5412 is provided with a lug structure, the lug protruding laterally and having a connecting hole for screwing and fixing, so as to achieve a reliable connection with the first wall 517. The third plate 5413 is provided with a flange structure, and the flange is also provided with a connecting hole for engaging with the corresponding screw hole or snap fastener of the electrical control box body 51, so as to achieve convenient assembly and disassembly.

[0055] Furthermore, the second mounting plate 541 also includes a support member 5414, which is located on the side of the first plate 5411 opposite to the first mounting plate 531. Specifically, the two ends of the support member 5414 are respectively connected to the second circuit board 54 and the first plate 5411, for supporting and positioning the second circuit board 54, so that the second circuit board 54 and the first plate 5411 are arranged at a distance. Preferably, the support member 5414 is at least two pairs of support posts or studs provided at the opposite edges of the second circuit board 54. In this embodiment, because there is a preset distance between the second circuit board 54 and the first plate 5411, the front and rear surfaces of the second circuit board 54 can have heat dissipation space, which helps heat diffusion and air circulation, improves the overall heat dissipation performance, and extends the service life of the second circuit board 54. At the same time, the distance provided by the support member 5414 keeps the second circuit board 54 away from other metal structural parts or housings, effectively avoiding the risk of short circuits and leakage caused by close contact, and meeting the electrical safety design requirements.

[0056] In some embodiments, along the first direction, the side of the first circuit board 53 facing the second mounting plate 541 is provided with heat dissipation fins 532 for heat dissipation, and the heat dissipation fins 532 are detachably connected to the first mounting plate 531. Preferably, the heat dissipation fins 532 are fixed to the first mounting plate 531 by a screw structure or a guide rail snap-fit ​​method, and make thermally conductive contact with the heat-generating devices of the first circuit board 53. By providing heat dissipation fins 532 on the side of the first circuit board 53 facing the second mounting plate 541, the heat generated by the circuit board during operation can be efficiently conducted to the heat dissipation fins 532 and diffused into the mounting cavity 511, thereby reducing the operating temperature of the first circuit board 53 and its key components, and enhancing the thermal stability and operational reliability of the system. At the same time, the heat dissipation fins 532 are arranged in the gap area between the first circuit board 53 and the second mounting plate 541, utilizing the limited space for heat dissipation without increasing the volume of the electrical control box, thus improving the space utilization rate of the overall structure.

[0057] In some embodiments, the electrical control box body 51 is provided with multiple screw holes, which are used to allow the electrical control box body 51 to be installed and fixed to the housing 10 of the heat pump water heater 1 by screwing. Preferably, the screw holes are provided along the edge of the electrical control box body 51 or the corresponding mounting surface, and are symmetrically distributed to enhance installation stability.

[0058] Furthermore, the electrical control box assembly 50 also includes an electrical control box mounting plate 512, which is connected to the housing 10 of the heat pump water heater 1 and serves as a mounting base for the electrical control box body 51. When the electrical control box body 51 is separated from the housing 10, it remains connected to the mounting plate 512 via a rotatable connection structure, allowing the electrical control box body 51 to rotate and open or flip relative to the mounting plate 512 around a preset axis. When the electrical control box assembly 50 requires maintenance or adjustment, simply loosening the fixed connection between the electrical control box body 51 and the housing 10 allows the electrical control box body 51 to rotate and open relative to one side of the mounting plate 512, significantly improving maintenance convenience and work efficiency, and is particularly suitable for installation environments with limited space.

[0059] Preferably, the rotatable connection structure includes a rotating shaft portion disposed on one side of the control box body 51 and a bearing hole or limiting structure disposed on the control box mounting plate 512, the two cooperating to form a rotatable hinge. This side of the control box body 51 is also provided with a detachable connection structure, such as a buckle or screw, for fixing the control box body 51 to the control box mounting plate 512 after rotation and closing.

[0060] Preferably, the rotatable connection structure includes an L-shaped rotating member 513 located on one side of the electrical control box body 51 and a limiting opening 5121 located on the electrical control box mounting plate 512. The L-shaped rotating member 513 has a connecting section extending in the horizontal direction and a limiting section extending in the vertical direction, forming an overall L-shaped structure. Its connecting section is fixedly connected to one side wall of the electrical control box body 51, and its limiting section can be inserted into the limiting opening 5121 on the electrical control box mounting plate 512 in the installed state to form a rotatable connection. In the normal installation state, the electrical control box body 51 is fixedly connected to the housing 10 of the heat pump water heater 1 by bolts, and the L-shaped rotating member 513 is completely received within the limiting opening 5121 and is in a non-load-bearing state. When the bolt connection between the electrical control box body 51 and the housing 10 is released, that is, when the electrical control box body 51 is separated from the housing 10, the limiting section of the L-shaped rotating part 513 will abut against the edge of the limiting port 5121, so that the electrical control box body 51 can be suspended on the electrical control box mounting plate 512. At this time, the electrical control box body 51 can rotate or open along one side of the mounting plate around the rotating shaft formed at the limiting port 5121.

[0061] Furthermore, the limiting opening 5121 is an open U-shaped groove, an arc-shaped groove, or a dovetail-shaped notch, so as to restrict the L-shaped rotating member 513 from disengaging while allowing it to rotate around the rotation axis.

[0062] In some embodiments, the electrical control box body 51 includes a second wall 518, which is connected to the first wall 517, together forming part of the mounting cavity 511. The second wall 518 has multiple wiring ports 515, preferably four, which are spaced apart along the length of the second wall 518 and are used to thread wires connecting to internal components of the electrical control box. Specifically, each wiring port 515 is connected to a corresponding wire for electrical connection between the electrical control box and the heat pump water heater 1, including at least two high-voltage cables and at least two low-voltage cables. To meet electrical safety standards, the high-voltage and low-voltage cables are laid along different wiring ports 515 on the second wall 518, so that the two types of cables are laid along different paths when connected outside the electrical control box, effectively avoiding cross-interference. At the same time, the high-voltage and low-voltage cables are led out from different locations, reducing interference and safety hazards during wiring, and meeting electrical safety design standards. Preferably, the connection port 515 is a rubber-sealed wire hole, a wire sheath hole, or a fixed sleeve structure with a sealing ring, used to improve the protection level of the connection (such as waterproof, dustproof, etc.).

[0063] In some embodiments, the electrical control box assembly 50 further includes a cover 52, which is screwed to the electrical control box body 51 to seal the opening of the mounting cavity 511. Specifically, the electrical control box body 51 has multiple screw holes distributed along its edge at the opening, and the cover 52 has corresponding through holes. The cover 52 is fixed by screws engaging with the screw holes, so that the cover 52 can securely seal the mounting cavity 511 and prevent dust and water from entering.

[0064] In some embodiments, the electrical control box assembly 50 further includes a third mounting plate 57, which is spaced apart from the first mounting plate 531 and the second mounting plate 541, forming a multi-layered structure. The third mounting plate 57 is used to mount large or heat-generating electronic components. Preferably, an inductor 56 is mounted on the third mounting plate 57. As the main heat-generating component, the inductor 56 is spaced apart from the first circuit board 53 and the second circuit board 54, which can effectively prevent heat from being directly conducted to the circuit board, reduce the thermal impact on the electronic components, and improve the stability and safety of the system operation. In addition, since the third mounting plate 57 is not closely attached to the first mounting plate 531 and the second mounting plate 541, a heat dissipation channel or wiring channel is naturally formed between the boards, further improving space utilization, heat dissipation performance, and wiring flexibility.

[0065] Furthermore, the inductor 56 is housed separately in a heat sink box, which is connected to the third mounting plate 57. The inductor 56 is placed inside the heat sink box, and the inside of the box is encapsulated with a thermally conductive and insulating material. This material possesses both good thermal conductivity and electrical insulation properties, enhancing the thermal conductivity of the inductor 56 during operation and ensuring safety. The heat sink box is mounted on the third mounting plate 57, with its side facing the metal wall of the control box body 51 serving as the heat dissipation surface. Structurally, a certain assembly gap is pre-set between the heat sink box and the sheet metal parts. After installation and fixing, the heat dissipation surface can be tightly fitted to the control box body 51 under pre-tightening action, achieving effective thermal contact and rapidly transferring the heat from the inductor 56 to the sheet metal wall of the control box body 51 for external radiative heat dissipation.

[0066] With the above structure, the inductor 56 can be independently installed and protected, while also achieving thermal connection with the main body 51 of the control box, significantly improving the overall heat dissipation capacity. It is suitable for electronic control systems with high power density and concentrated heat load.

[0067] Furthermore, the inductor 56, as the main heat-generating component in the control box assembly 50, is spatially offset from and spaced apart from the first circuit board 53 and the second circuit board 54 to reduce the impact of heat accumulation on the control circuit. Specifically, the inductor 56 is spaced apart from the first circuit board 53 along a first direction, wherein the first direction is the direction from the first mounting plate 531 toward the first wall 517, that is, the front-to-back depth direction of the control box assembly 50.

[0068] Meanwhile, the inductor 56 can also be spaced apart from the second circuit board 54 along a second direction, which is the direction from the top to the bottom of the control box body 51, i.e., perpendicular to the first direction. By setting the inductor 56 and the circuit board spaced apart in two mutually perpendicular directions, the inductor 56 can obtain a more independent heat dissipation environment in space, effectively preventing its heat from affecting the operation of the surrounding circuit boards, which is especially suitable for electronic control systems in high-power applications.

[0069] Furthermore, the inductor 56 is also spaced apart from the first circuit board 53 along the first direction. Through the above arrangement, the inductor 56 avoids the area directly above the first circuit board 53 in space and maintains a certain depth distance from the first circuit board 53, thereby avoiding direct thermal interference between the inductor 56 and the circuit board.

[0070] Understandably, the electrical control box assembly 50 also includes a terminal block 55 for electrical connection between the electrical control box assembly 50 and external equipment (such as compressor 40 or fan). The electrical control box body 51 includes a top wall and a bottom wall disposed opposite each other along a second direction, wherein the second direction is the direction from the top to the bottom of the electrical control box body 51, i.e., the vertical direction of the electrical control box.

[0071] Preferably, the inductor 56 is located on the top wall and fixed to the inner side of the top wall by a heat sink and a third mounting plate 57, while the terminal block 55 is located on the bottom wall, such as by embedding, screwing, or snap-fitting to the inner side of the bottom wall. With this structural arrangement, the inductor 56 and the terminal block 55 are respectively located at both ends of the control box body 51 in the second direction, allowing the inductor 56 to be closer to the top for better heat dissipation, and the terminal block 55 to be closer to the bottom for easy connection with the cable routing area at the bottom of the unit, thus optimizing the internal layout, heat dissipation and ventilation, and wiring logic.

[0072] Furthermore, the vertical distribution of the top inductor 56 and the bottom terminal block 55 in the structure also helps to isolate the power path and control signal path, reduce interference, and improve the safety and reliability of the whole electrical system.

[0073] In some embodiments, the first mounting plate 531 and the second mounting plate 541 are staggered along a second direction, where the first direction is the direction from the first mounting plate 531 to the first wall 517 (i.e., the front-back or depth direction of the mounting cavity 511). The second direction is perpendicular to the first direction, preferably the vertical direction (i.e., the top-to-bottom direction of the mounting cavity 511). The staggered arrangement means that the first mounting plate 531 and the second mounting plate 541 do not completely overlap in the second direction, and have a certain lateral offset from each other, so that the two mounting plates are partially staggered in spatial layout and do not obstruct each other. By staggering the first mounting plate 531 and the second mounting plate 541, spatial interference between tall components (such as inductors and capacitors) on the two circuit boards is effectively avoided, leaving a buffer zone for the arrangement and routing of electrical components, improving integration density while ensuring safe spacing. Meanwhile, compared to a completely overlapping arrangement, the staggered layout allows the two mounting plates to be placed closer to the first wall 517 or the front end of the electrical control box. While keeping the circuit board size unchanged, the overall thickness and depth of the mounting cavity 511 are reduced, making it suitable for heat pump water heaters 1 with high installation space requirements.

[0074] like Figures 6 to 9 As shown, this embodiment also provides a heat pump water heater 1, including a housing 10, the aforementioned electrical control box assembly 50, a first heat exchanger 20, a second heat exchanger 30, a compressor 40, a fan assembly 60, and a wired controller assembly 70. The housing 10 is used to house and support the various functional components of the unit. At least a portion of the electrical control box assembly 50 is detachably connected inside the housing 10 and is electrically or signal-connected to the compressor 40, the fan assembly 60, and the wired controller assembly 70, for coordinating and controlling the operating logic of each functional component.

[0075] Specifically, the wired controller assembly 70 is used to enable users to set the overall operating parameters, display the operating status, and provide interactive feedback on fault information. Preferably, along the height direction of the housing 10, the wired controller assembly 70 is positioned above the electrical control box assembly 50, i.e., the two are arranged vertically, making the wired controller assembly 70 easy for users to operate and view, while not affecting the installation and wiring space of the electrical control box assembly 50. The wired controller assembly 70 and the electrical control box assembly 50 are electrically connected via a cable, which can transmit the control signals input by the user to the control circuit inside the electrical control box, or feed back the operating information processed by the electrical control box to the wired controller assembly 70 for display, thereby realizing human-machine interactive control. This structural design ensures that the wired controller assembly 70 and the electrical control box assembly 50 do not interfere with each other in terms of spatial layout, have smooth wiring, and are convenient to operate. It is suitable for panel installation or embedded layout scenarios of the heat pump water heater 1, improving the integration of the whole machine and the user experience.

[0076] Specifically, the housing 10 of the heat pump water heater 1 has a first side 11 and a second side 12 connected to each other. The first side 11 and the second side 12 are arranged adjacent to each other along the circumference of the housing 10, forming an angled area between them, such as a corner of the housing 10. The wired controller assembly 70 is located on the first side 11, making it easy for the user to observe and operate from the front, while the electrical control box assembly 50 is located in the angled area, that is, in the space where the first side 11 and the second side 12 meet. This structural arrangement makes full use of the available space at the corner of the housing 10, allowing the electrical control box assembly 50 to avoid the user's operating area and be hidden in a corner of the housing 10. This not only contributes to the sleek appearance of the entire unit but also improves the protection performance and space utilization efficiency of the electrical control assembly 50. At the same time, since the electrical control box assembly 50 and the wired controller assembly 70 are relatively close, the electrical connection path between them can be kept short, which is beneficial for cable routing, reduces signal interference, and improves the convenience of assembly and maintenance.

[0077] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An electrical control box assembly, characterized in that, include: The electrical control box body has an opening in the mounting cavity, and the electrical control box body includes a first wall disposed opposite to the opening; A first mounting plate is disposed in the mounting cavity and connected to the electrical control box body. A first circuit board is mounted on the side of the first mounting plate away from the first wall. The second mounting plate is disposed in the mounting cavity and connected to the electrical control box body. Along the first direction, the second mounting plate is spaced apart from the first mounting plate. A second circuit board is mounted on the side of the second mounting plate opposite to the first mounting plate. The first direction is the direction from the first mounting plate to the first wall.

2. The electrical control box assembly according to claim 1, characterized in that, The first wall is provided with a mounting groove, the first mounting plate is installed in the mounting groove and is detachably connected to the bottom wall of the mounting groove.

3. The electrical control box assembly according to claim 2, characterized in that, The bottom wall of the mounting groove is provided with a heat dissipation vent, the first mounting plate is covered by the heat dissipation vent, and a heat dissipation component is provided on the side of the first mounting plate facing the heat dissipation vent, the heat dissipation component protruding from the heat dissipation vent.

4. The electrical control box assembly according to claim 1, characterized in that, The second mounting plate includes a first plate body, a second plate body, and a third plate body, wherein the second plate body and the third plate body are respectively disposed on opposite sides of the first plate body; The second circuit board is mounted on the side of the first plate away from the first wall. The second plate extends along the thickness direction of the first plate toward the direction close to the first wall and is detachably connected to the first wall. The third plate extends along the thickness direction of the first plate toward the direction away from the first wall and is detachably connected to the side wall of the electrical control box body.

5. The electrical control box assembly according to claim 4, characterized in that, A support member is provided on the side of the first plate away from the first wall, the second circuit board is connected to the support member, and there is a gap between the second circuit board and the first plate.

6. The electrical control box assembly according to any one of claims 1 to 5, characterized in that, The first mounting plate and the second mounting plate are offset along a second direction, which intersects with the first direction.

7. The electrical control box assembly according to any one of claims 1 to 5, characterized in that, The electrical control box assembly also includes an electrical control box mounting plate, the electrical control box body is connected to the electrical control box mounting plate, and is configured to rotate relative to the electrical control box mounting plate.

8. The electrical control box assembly according to any one of claims 1 to 5, characterized in that, The electrical control box body includes a second wall, which is connected to the first wall, and the second wall has multiple wiring ports.

9. The electrical control box assembly according to any one of claims 1 to 5, characterized in that, The electrical control box assembly also includes a cover, which is connected to the electrical control box body and is used to seal the opening.

10. The electrical control box assembly according to any one of claims 1 to 5, characterized in that, The third mounting plate of the electrical control box assembly is spaced apart from the first mounting plate and the second mounting plate. An inductor is mounted on the third mounting plate and is spaced apart from the first circuit board and the second circuit board.

11. The electrical control box assembly according to claim 10, characterized in that, The inductor is thermally connected to the main body of the electrical control box.

12. The electrical control box assembly according to claim 11, characterized in that, The inductor is spaced apart from the first circuit board along the first direction, and / or the inductor is spaced apart from the second circuit board along the second direction, the second direction intersecting the first direction.

13. The electrical control box assembly according to claim 12, characterized in that, The inductor is spaced apart from the first circuit board along a first direction.

14. The electrical control box assembly according to claim 13, characterized in that, The electrical control box assembly includes a terminal block, and the electrical control box body includes a top wall and a bottom wall disposed opposite to each other along the second direction, the second direction being perpendicular to the second direction, the inductor being connected to the top wall, and the terminal block being connected to the bottom wall.

15. A heat pump water heater, characterized in that, include: Box; According to any one of claims 1 to 14, at least a portion of the electrical control box assembly is disposed inside the housing.

16. The heat pump water heater according to claim 15, characterized in that, The heat pump water heater also includes a wired controller assembly, which is located above the electrical control box assembly along the height direction of the housing, and the wired controller assembly and the electrical control box assembly are electrically connected.

17. The heat pump water heater according to claim 16, characterized in that, The enclosure has a first side and a second side connected to each other, and an angled region is formed between the first side and the second side. The wired controller assembly is disposed on the first side, and the electrical control box assembly is disposed in the angled region.

Images