Electric control box assembly and heat pump water heater

Abstract

The invention relates to the technical field of heating and ventilation equipment, in particular to an electric control box assembly and a heat pump water heater. The electric control box assembly comprises an electric control box, and a mounting cavity with an opening is formed in the electric control box; the box cover is connected with the electric control box and covers the opening; the first circuit board is arranged in the mounting cavity; the heating element is electrically connected with the first circuit board; the heating element is installed on the heat dissipation box and is in heat conduction connection with the heat dissipation box, and at least part of the heat dissipation box is attached to the inner surface of the electric control box and is in heat conduction connection with the electric control box. According to the electric control box assembly, the heating element is installed on the heat dissipation box and is in heat conduction connection with the heat dissipation box, and at least part of the heat dissipation box is attached to the inner surface of the electric control box and is in heat conduction connection with the electric control box, so that the heating element can be separated from the circuit board and is installed on the heat dissipation box; and heat dissipation of the heating element is realized through the heat dissipation box and the electric control box, so that rapid heat dissipation of the electric control box assembly can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating and ventilation equipment, and particularly relates to an electric control box assembly and a heat pump water heater. BACKGROUND

[0002] The part provided in this section is merely background information related to the present disclosure, which does not necessarily have to be prior art.

[0003] The heat pump water heater is commonly used for heating and constant temperature control of large swimming pool water bodies, and an electric control system for controlling operation of various functional modules is arranged in the heat pump water heater. The heat pump water heater comprises an electric control box assembly, the electric control box assembly comprises an electric control box, a heating element arranged in the electric control box, and a first circuit board arranged in the electric control box, wherein the heating element is arranged on the first circuit board, and the space utilization rate of the electric control box is not high and the heating problem is difficult to solve. SUMMARY

[0004] The purpose of the present application is to at least solve the problem that the electric control box assembly in the prior art cannot quickly dissipate heat generated by the heating element. The purpose is achieved by the following technical scheme:

[0005] The first aspect of the embodiment of the present application proposes an electric control box assembly, which comprises:

[0006] An electric control box, the electric control box is formed with a mounting cavity with an opening;

[0007] A box cover, the box cover is connected with the electric control box and covers the opening;

[0008] A first circuit board, the first circuit board is arranged in the mounting cavity;

[0009] A heating element, the heating element is electrically connected with the first circuit board; and

[0010] A heat dissipation box, the heating element is mounted on the heat dissipation box and is in thermal conductive connection with the heat dissipation box, and at least part of the heat dissipation box is attached to the inner surface of the electric control box and is in thermal conductive connection with the electric control box.

[0011] According to the electric control box assembly of the present application, the first circuit board is arranged in the mounting cavity, the heating element is electrically connected with the first circuit board, and the heating element is mounted on the heat dissipation box and is in thermal conductive connection with the heat dissipation box, wherein at least part of the heat dissipation box is attached to the inner surface of the electric control box and is in thermal conductive connection with the electric control box, so that the heating element can be separated from the circuit board, mounted on the heat dissipation box, and the heat dissipation of the heating element can be realized through the heat dissipation box and the electric control box, thereby realizing the rapid heat dissipation of the electric control box assembly.

[0012] In addition, the electric control box assembly according to the present application can also have the following additional technical features:

[0013] In some embodiments of the present application, the electric control box assembly further comprises a mounting frame connected with the electric control box, and the mounting frame is provided with a plug-in hole, and at least part of the heat dissipation box is arranged in the plug-in hole.

[0014] In some embodiments of the present application, the mounting frame comprises a body portion and at least one bent portion, the at least one bent portion is arranged at a circumferential edge of the body portion, and the bent portion comprises a first plate portion and a second plate portion intersectingly arranged, wherein the first plate portion is connected with the body portion, and the second plate portion is connected with the electric control box.

[0015] In some embodiments of the present application, the number of the bent portions is at least two, and the at least two bent portions are arranged at intervals along the circumference of the body portion, and the second plate portion of the at least one bent portion is detachably connected with the electric control box.

[0016] In some embodiments of the present application, the heat dissipation box comprises:

[0017] a mounting portion, the mounting portion is provided with an accommodation space, and the heat generating component is arranged in the accommodation space; and

[0018] a connecting portion connected with the mounting portion, and the connecting portion is detachably connected with the body portion.

[0019] In some embodiments of the present application, the mounting portion is in a cylindrical structure with both ends open, and one end of the mounting portion along the axial direction thereof is arranged in abutment with the electric control box.

[0020] In some embodiments of the present application, the connecting portion is arranged at the circumferential outer side of the mounting portion and intersectingly arranged with the axial direction of the mounting portion.

[0021] In some embodiments of the present application, the distance between one end of the mounting portion facing the mounting frame and the connecting portion is greater than the distance between the body portion and the second plate portion.

[0022] In some embodiments of the present application, the heat dissipation box further comprises a limiting portion connected with the mounting portion to limit the position of the heat generating component in the accommodation space.

[0023] In some embodiments of the present application, the limiting portion extends along the radial direction of the mounting portion, and at least one end of the limiting portion is connected with the mounting portion.

[0024] In some embodiments of the present application, the accommodation space is provided with a heat-conducting insulating adhesive, and the heat generating component is bonded with the heat dissipation box through the heat-conducting insulating adhesive.

[0025] In some embodiments of the present application, the first circuit board and the heat-generating component are respectively arranged corresponding to different plate bodies of the electric control box.

[0026] In some embodiments of the present application, the electric control box assembly further comprises a second circuit board, and the second circuit board and the first circuit board are arranged in a stacked manner.

[0027] In some embodiments of the present application, the heat-generating component comprises an inductor.

[0028] In some embodiments of the present application, the electric control box comprises a first mounting plate and a first wall arranged opposite to the opening, the first wall is provided with a mounting groove, the first mounting plate is mounted in the mounting groove and detachably connected with a bottom wall of the mounting groove.

[0029] In some embodiments of the present application, the bottom wall of the mounting groove is provided with a heat dissipation opening, the first mounting plate covers the heat dissipation opening, and a heat dissipation component is arranged on a side of the first mounting plate facing the heat dissipation opening, the heat dissipation component protrudes out of the heat dissipation opening.

[0030] The electric control box further comprises a second mounting plate, the second mounting plate comprises a first plate body, a second plate body and a third plate body, the second plate body and the third plate body are respectively arranged on opposite sides of the first plate body;

[0031] In some embodiments of the present application, the first plate body is provided with the second circuit board on a side thereof facing away from the first wall, the second plate body extends along a thickness direction of the first plate body towards a direction close to the first wall and is detachably connected with the first wall, and the third plate body extends along the thickness direction of the first plate body towards a direction away from the first wall and is detachably connected with a side wall of the electric control box.

[0032] In some embodiments of the present application, the first plate body is provided with a support on a side thereof facing away from the first wall, the second circuit board is connected with the support, and the second circuit board has a spacing space with the first plate body.

[0033] A second aspect of the embodiments of the present application proposes a heat pump water heater, comprising:

[0034] a box body; and

[0035] The electric control box assembly mentioned in the above embodiments is arranged at least partially inside the box body. BRIEF DESCRIPTION OF DRAWINGS

[0036] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not intended to be limiting in

[0037] Figure 1 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0038] Figure 2 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically; Figure 1

[0039] A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically; Figure 3 Figure 1 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0040] Figure 4 Figure 3 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0041] Figure 5 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically; Figure 4

[0042] Figure 6 Figure 5

[0043] Figure 7 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically; Figure 4

[0044] A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically; Figure 8 Figure 1 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0045] Figure 9 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0046] Figure 10 Figure 9 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0047] Figure 11 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically;

[0048] Figure 12 A structural schematic diagram of an electric control box assembly according to an embodiment of the present application is shown schematically; ​​​​​​​

[0049] Figure 13 Fig. 1 schematically shows a partial structural diagram of a first perspective view of a heat pump water heater according to an embodiment of the present application;

[0050] Figure 14 Fig. 2 schematically shows a partial structural diagram of a second perspective view of a heat pump water heater according to an embodiment of the present application.

[0051] Reference signs are as follows:

[0052] 1. heat pump water heater;

[0053] 10. cabinet;

[0054] 20. first heat exchanger;

[0055] 30. second heat exchanger;

[0056] 40. compressor;

[0057] 50. electric control box assembly; 51. electric control box; 511. mounting cavity; 512. electric control box mounting plate; 5121. limiting opening; 513. rotating piece; 514. heat dissipation opening; 515. wiring opening; 516. mounting groove; 517. first wall; 518. second wall; 52. box cover; 53. first circuit board; 531. first mounting plate; 532. heat dissipation fin; 54. second circuit board; 541. second mounting plate; 55. wiring seat; 515. wiring opening; 56. heat generating piece; 57. heat dissipation box; 571. mounting portion; 5711. reinforcing rib; 572. connecting portion; 5721. first connecting hole; 573. reinforcing portion; 574. limiting portion; 58. mounting frame; 581. body portion; 5811. plug-in hole; 5812. second connecting hole; 582. bending portion; 5821. first plate portion; 5822. second plate portion; 58221. third connecting hole;

[0058] 60. fan assembly;

[0059] 70. wire control device assembly;

[0060] x. depth direction of electric control box assembly;

[0061] y. height direction of electric control box assembly. DETAILED DESCRIPTION

[0062] Exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by 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 present disclosure to those skilled in the art.

[0063] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0064] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0065] Spatially relative terms, such as "inner", "outer", "inwardly", "outwardly", "lower", "bottom", "top", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Such spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0066] The heat pump water heater is commonly used for heating and constant temperature control of large pool water bodies, and an electric control system for controlling operation of various functional modules is arranged inside the heat pump water heater. The heat pump water heater comprises an electric control box assembly, the electric control box assembly comprises an electric control box, a heating element arranged in the electric control box and a first circuit board arranged in the electric control box, wherein the heating element is arranged on the first circuit board. Since the electric control box is a closed structure, the heat generated by the heating element cannot be quickly dissipated.

[0067] In order to solve the problem, the application separates the heating element from the first circuit board, sets the heating element in the electric control box alone, and sets the heat dissipation box to dissipate heat of the heating element, so that the heat generated by the heating element is discharged from the electric control box as soon as possible.

[0068] The structure of the electric control box assembly of the application will be described in detail below with reference to the accompanying drawings.

[0069] According to a first aspect of embodiments of the application, an electric control box assembly 50 is provided, as shown in Figures 1 to 4 wherein, Figure 1 The structure of the electric control box assembly 50 according to embodiments of the application is schematically shown, Figure 2 The structure of the electric control box assembly 50 according to embodiments of the application is schematically shown, Figure 1 The structure of the electric control box assembly 50 according to embodiments of the application is schematically shown, Figure 3 The internal structure of the electric control box assembly 50 according to embodiments of the application is schematically shown (the box cover 52 is not shown), Figure 1 The internal structure of the electric control box assembly 50 according to embodiments of the application is schematically shown (the box cover 52 is not shown), Figure 4 The internal structure of the electric control box assembly 50 according to embodiments of the application is schematically shown (the box cover 52 is not shown), Figure 3 The internal structure of the electric control box assembly 50 according to embodiments of the application is schematically shown (the box cover 52 is not shown),

[0070] It should be noted that the electric control box 51 here can be a box structure, and the box cover 52 is detachably connected with the electric control box 51 and can cover the opening. The heating element 56 here is also arranged in the mounting cavity 511 and can be electrically connected with the first circuit board 53 by wires.

[0071] It should be noted that the first circuit board 53 and the heating element 56 are respectively arranged corresponding to different plate bodies of the electric control box 51. Specifically, the first circuit board 53 can be connected with the first wall 517 of the electric control box 51, the heat dissipation box 57 is connected with the second wall 518 of the electric control box 51, and therefore the heating element 56 is in contact with the second wall 518 of the electric control box 51.

[0072] Generally, the heat-generating element 56 is mounted on the first circuit board 53, and the heat generated by the heat-generating element 56 during operation is not easy to discharge from the mounting cavity 511. The present application changes the installation position of the heat-generating element 56, and installs the heat-generating element 56 on the heat-dissipating box 57 and in thermal conductive connection with the heat-dissipating box 57, wherein at least part of the heat-dissipating box 57 is attached to the inner surface of the electric control box 51 and in thermal conductive connection with the electric control box 51, so that the heat generated by the heat-generating element 56 is sequentially discharged to the outside of the electric control box assembly 50 through the heat-dissipating box 57 and the electric control box 51, thereby achieving heat dissipation of the electric control box assembly 50.

[0073] According to the electric control box assembly 50 of the present application, the first circuit board 53 is arranged in the mounting cavity 511, the heat-generating element 56 is electrically connected with the first circuit board 53, and the heat-generating element 56 is installed on the heat-dissipating box 57 and in thermal conductive connection with the heat-dissipating box 57, wherein at least part of the heat-dissipating box 57 is attached to the inner surface of the electric control box 51 and in thermal conductive connection with the electric control box 51, so that the heat-generating element 56 can be separated from the circuit board and installed on the heat-dissipating box 57, and heat dissipation of the heat-generating element 56 can be achieved through the heat-dissipating box 57 and the electric control box 51, thereby enabling rapid heat dissipation of the electric control box assembly 50.

[0074] Alternatively, the heat-dissipating box 57 here can also be arranged on the inner surface of the box cover 52, and considering that the box cover 52 will be disassembled more frequently, it is necessary to provide a longer cable for the electrical connection between the heat-generating element 56 and the first circuit board 53, thereby facilitating the movement of the position of the box cover 52.

[0075] The heat-generating element 56 here can be an inductor, wherein the inductor is an element that generates an electromagnetic field through electromagnetic induction. Generally, the inductor generates heat during operation, and the heat accumulates inside the electric control box assembly 50. Since the inside of the common electric control box assembly 50 is a closed space, the heat dissipation speed of the electric control box assembly 50 is slow. The present application changes the position of the heat-generating element 56, so that the heat generated by the heat-generating element 56 can be conveniently transmitted to the outside of the electric control box assembly 50.

[0076] In some embodiments of the present application, as shown in Figures 5 to 7 , Figure 5 for Figure 4 the structure diagram of the heat-generating element 56 of the electric control box assembly 50 described in the above, Figure 6 for Figure 5 the structure diagram of the connection between the heat-generating element 56 and the heat-dissipating box 57 of the electric control box assembly 50 shown in the above, Figure 7 for Figure 4A partial structural schematic view of the electric control box assembly 50 (the heating element 56 and the heat dissipation box 57 are not shown) shown in FIG. 1, the electric control box assembly 50 further comprises a mounting frame 58, the mounting frame 58 is connected with the electric control box 51, and the mounting frame 58 is provided with a plug-in hole 5811, and at least part of the heat dissipation box 57 is arranged in the plug-in hole 5811.

[0077] Specifically, the mounting frame 58 is detachably connected with the inner surface of the electric control box 51, the heat dissipation box 57 can be plugged into the plug-in hole 5811 to realize the connection between the heat dissipation box 57 and the mounting frame 58, so that the heat dissipation box 57 can be in contact with the inner surface of the electric control box 51 to realize the heat dissipation of the heat dissipation box 57.

[0078] In some embodiments of the present application, in combination with Figure 7 As shown in FIG. 1, the mounting frame 58 comprises a body part 581 and at least one bending part 582, the bending part 582 is arranged at the circumferential edge of the body part 581, and the bending part 582 comprises a first plate part 5821 and a second plate part 5822 arranged intersectingly, wherein the first plate part 5821 is connected with the body part 581, and the second plate part 5822 is connected with the electric control box 51.

[0079] The body part 581 is a flat plate structure, and the plug-in hole 5811 is formed on the body part 581, the number of the plug-in hole 5811 is consistent with the number of the heat dissipation box 57, or the number of the plug-in hole 5811 is greater than the number of the heat dissipation box 57, so that each heat dissipation box 57 can be plugged into a plug-in hole 5811 to realize the fixation of the heat dissipation box 57.

[0080] Specifically, the body part 581 can be a rectangular plate structure, and the four circumferential edges of the rectangular plate structure can form the bending part 582 through the bending process, at this time, the number of the bending part 582 is four, and each bending part 582 comprises a first plate part 5821 and a second plate part 5822 arranged intersectingly, wherein the second plate part 5822 can be arranged in close contact with the inner surface of the electric control box 51 and connected with the electric control box 51.

[0081] Specifically, the first plate part 5821 and the second plate part 5822 can be perpendicular to each other or close to the perpendicular relationship, so that the plug-in hole 5811 and the inner surface of the electric control box 51 have a space for accommodating the heat dissipation box 57, and the heat dissipation box 57 can be in contact with the inner surface of the electric control box 51.

[0082] Alternatively, the number of the bending part 582 here can also be two or three, that is, when the body part 581 is a rectangular plate structure, the bending part 582 can be formed at two ends or three ends of the rectangular plate structure, and the detachable connection between the mounting frame 58 and the electric control box 51 can also be realized.

[0083] It can be understood that when the number of the bending portions 582 is multiple, the surface of the second plate portion 5822 of each bending portion 582 facing the electric control box 51 is in the same plane, so that the second plate portions 5822 of the multiple bending portions 582 can be arranged to fit the inner surface of the electric control box 51 at the same time, facilitating the detachable connection between the mounting frame 58 and the electric control box 51.

[0084] Optionally, as shown in the following, the structure of the heat dissipation box 57 will be described. Figure 6

[0085] Optionally, the heat dissipation box 57 comprises a mounting portion 571 and a connecting portion 572 connected with the mounting portion 571, the mounting portion 571 is provided with a containing space, and the heating element 56 is arranged in the containing space, wherein the connecting portion 572 is detachably connected with the body portion 581.

[0086] It should be noted that the heat dissipation box 57 herein can be a component made of a heat conductive material, which can realize heat transfer between the heating element 56 and the heat dissipation box 57, and can realize heat transfer between the heat dissipation box 57 and the electric control box 51, so as to dissipate the heat generated by the heating element 56 through the electric control box 51.

[0087] Specifically, the mounting portion 571 has a tubular structure with both ends open, and the mounting portion 571 is arranged to fit the electric control box 51 along one end of the mounting portion 571 in the axial direction, wherein the shape of the containing space can be consistent with the outer contour of the heating element 56, so that the heating element 56 can be inserted into the containing space, and the heating element 56 and the mounting portion 571 are arranged to fit.

[0088] Specifically, the heating element 56 herein can be an inductor, which has a cylindrical structure, and therefore, the containing space herein has a structure of a cylindrical through hole, so that the heating element 56 can be conveniently inserted into the containing space.

[0089] Alternatively, the shape of the containing space herein can also be different from the outer contour of the heating element 56, for example, the heating element 56 has a cylindrical structure, but the shape of the containing space is a rectangular hole structure. In order to increase the heat transfer efficiency between the heating element 56 and the mounting portion 571, a heat conductive adhesive or the like can be filled in the containing space, so that the heat generated by the heating element 56 can be quickly transferred to the mounting portion 571.

[0090] Specifically, the connecting portion 572 is arranged on the circumferential outer side of the mounting portion 571 and is arranged to intersect the axial direction of the mounting portion 571.

[0091] ​As mentioned above, the mounting portion 571 can be a cylindrical structure, the connecting portion 572 can be vertically arranged with the axial direction of the mounting portion 571, the connecting portion 572 can be a circular ring structure similar to a flange, or a rectangular ring structure, which is sleeved on the side surface of the mounting portion 571. The axial direction of the mounting portion 571 is consistent with the height direction of the electric control box assembly 50.

[0092] Specifically, the connecting portion 572 and the mounting portion 571 can be an integrated structure, which is convenient to manufacture and reduces the manufacturing process of the heat dissipation box 57. For example, the connecting portion 572 and the mounting portion 571 are manufactured by an integrated injection molding process or an integrated vacuum forming process, so that the heat dissipation box 57 has insulation and heat conduction properties.

[0093] Optionally, the distance between the end of the mounting portion 571 facing the mounting frame 58 and the connecting portion 572 is greater than the distance between the body portion 581 and the second plate portion 5822.

[0094] Continuing to refer to Figure 6 As shown in the figure, the connecting portion 572 divides the mounting portion 571 into two parts, one part of the mounting portion 571 is located on the left side of the connecting portion 572. As Figure 4 shown, when the heat dissipation box 57 is in the mounted state, this part of the mounting portion 571 is located above the connecting portion 572, and the other part of the mounting portion 571 is located on the right side of the connecting portion 572. When the heat dissipation box 57 is in the mounted state, the other part of the mounting portion 571 is below the connecting portion 572, and the distance between the end of the mounting portion 571 facing the mounting frame 58, that is, the top end of the mounting portion 571 and the connecting portion 572 is greater than the distance between the body portion 581 and the second plate portion 5822. Such a setting mode can make the top end of the mounting portion 571 contact the inner surface of the electric control box 51, and the mounting portion 571 has a gap between the first plate portion 5821, thereby preventing the first plate portion 5821 from affecting the installation of the electric control box 51, so that the heat dissipation box 57 can be arranged in close contact with the inner surface of the electric control box 51, and the heat transfer efficiency between the heat dissipation box 57 and the electric control box 51 is improved.

[0095] On the contrary, if the distance between the end of the mounting portion 571 facing the mounting frame 58, that is, the top end of the mounting portion 571 and the connecting portion 572 is less than or equal to the distance between the body portion 581 and the second plate portion 5822, the first plate portion 5821 will contact the connecting portion 572 of the heat dissipation box 57, and the top end of the heat dissipation box 57 cannot be arranged in close contact with the inner surface of the electric control box 51, thereby reducing the heat transfer efficiency between the heat dissipation box 57 and the electric control box 51.

[0096] Optionally, as Figure 3 and Figure 6As shown, the heat dissipation box 57 further comprises a limiting portion 574 connected with the mounting portion 571 to limit the position of the heat generating component 56 in the accommodation space.

[0097] It should be noted that the limiting portion 574 and the mounting portion 571 can be an integral structure or a split structure. If the limiting portion 574 and the mounting portion 571 are an integral structure, they can be made by an integral injection molding process or an integral suction molding process. The limiting portion 574 prevents the heat generating component 56 from moving in the accommodation space or falling out of the accommodation space. The limiting portion 574 can be a long strip-shaped plate structure that can block the heat generating component 56 in the accommodation space.

[0098] Alternatively, the limiting portion 574 and the mounting portion 571 can be a split structure. The limiting portion 574 can be a long strip-shaped plate structure that can pass through the mounting portion 571 along the radial direction of the mounting portion 571, thereby blocking the heat generating component 56.

[0099] Optionally, the limiting portion 574 extends along the radial direction of the mounting portion 571, and at least one end of the limiting portion 574 is connected with the mounting portion 571.

[0100] The limiting portion 574 can be connected with the mounting portion 571 at both ends or only one end, which can block the heat generating component 56. Preferably, the limiting portion 574 is connected with the mounting portion 571 at both ends, which can better limit the heat generating component 56.

[0101] It should be noted that the limiting portion 574 can pass through the center axis of the mounting portion 571 or not. When the limiting portion 574 passes through the center axis of the mounting portion 571, the limiting portion 574 can divide the axial cross section of the mounting portion 571 into two semicircular structures. When the limiting portion 574 does not pass through the center axis of the mounting portion 571, the limiting portion 574 can divide the axial cross section of the mounting portion 571 into a small arc structure and a large arc structure. Figure 6 In the embodiment, the limiting portion 574 passes through the center axis of the mounting portion 571, and the limiting portion 574 can divide the axial cross section of the mounting portion 571 into two semicircular structures.

[0102] It can be understood that, in order to prevent the limiting portion 574 from falling off the mounting portion 571, the connection position of the limiting portion 574 and the mounting portion 571 can be processed, such as using a bonding process or other processes for fixation. Of course, when the limiting portion 574 and the mounting portion 571 are an integral structure, the limiting portion 574 will not fall off, thereby stably arranging the heat generating component 56 in the accommodation space, and quickly dissipating the heat generated by the heat generating component 56.

[0103] In the above embodiment, the limiting portion 574 is a long strip-shaped plate structure. Alternatively, the limiting portion 574 can also be provided in two separate structures. For example, the limiting portion 574 can be provided in two or more structures, wherein at least one end of each limiting portion 574 is connected to the mounting portion 571, and the other end can be suspended or connected to other positions of the mounting portion 571, which can also play a role in limiting the heat generating component 56 in the accommodation space.

[0104] Optionally, the connecting portion 572 is provided with a first connecting hole 5721, and the body portion 581 is provided with a second connecting hole 5812. Screws can pass through the first connecting hole 5721 and the second connecting hole 5812 to achieve detachable connection between the connecting portion 572 and the body portion 581, so that the heat dissipation box 57 and the mounting frame 58 can be detachably connected to fix the heat dissipation box 57.

[0105] Optionally, as shown in Figure 7 At least one second plate portion 5822 is detachably connected to the electric control box 51. Screws or other components can be used to connect the second plate portion 5822 and the electric control box 51, so as to achieve detachable connection between the mounting frame 58 and the electric control box 51.

[0106] As mentioned earlier, the second plate portion 5822 of the mounting frame 58 is in close contact with the inner surface of the electric control box 51. Screws can be used to connect the second plate portion 5822 and the electric control box 51, so as to achieve fixed installation of the mounting frame 58 on the inner surface of the electric control box 51.

[0107] Specifically, the second plate portion 5822 is provided with a third connecting hole 58221, which facilitates the connection between the second plate portion 5822 and the electric control box 51. Screws or other connecting components can pass through the third connecting hole 58221 and the hole on the electric control box 51 to achieve detachable connection between the second plate portion 5822 and the electric control box 51, thereby achieving detachable connection between the mounting frame 58 and the electric control box 51.

[0108] Optionally, the accommodation space is provided with heat-conducting insulating glue, and the heat generating component 56 is bonded to the heat dissipation box 57 through the heat-conducting insulating glue.

[0109] The heat-conducting insulating glue can be a solid glue filled in the accommodation space. By providing the heat-conducting insulating glue in the accommodation space of the mounting portion 571, the heat transfer efficiency between the mounting portion 571 and the heat generating component 56 can be achieved through the heat-conducting insulating glue, so that the heat generated by the heat generating component 56 can be quickly discharged to the outside of the electric control box assembly 50 through the mounting portion 571 and the electric control box 51.

[0110] Specifically, the heat-conducting insulating glue can be heat-conducting silicone glue, which is silicone glue with fillers, heat-conducting materials and other polymer materials added and mixed. Alternatively, the heat-conducting insulating glue can also be heat-conducting rubber, which is a composite material made of silicone rubber as a base material and ceramic particles such as boron nitride and aluminum oxide and glass fiber reinforcing materials. The heat-conducting rubber has the functions of heat conduction, insulation and mechanical protection.

[0111] Optionally, the heat-dissipating box 57 further comprises a reinforcing portion 573. The reinforcing portion 573 can increase the strength of the mounting portion 571 and the connecting portion 572 and reduce the probability of fracture of the mounting portion 571 and the connecting portion 572. Specifically, the reinforcing portion 573 can be a triangular plate structure, one end of which is connected to the connecting portion 572 and the other end of which is connected to the mounting portion 571.

[0112] Alternatively, the reinforcing portion 573 can also be an arc-shaped plate structure or other plate structures, which can enhance the strength.

[0113] Optionally, the number of the reinforcing portions 573 is multiple, and the multiple reinforcing portions 573 are arranged at intervals along the circumference of the mounting portion 571. Each of the reinforcing portions 573 is connected to the connecting portion 572 and the mounting portion 571, thereby reducing the probability of fracture of the mounting portion 571 and the connecting portion 572. Specifically, the reinforcing portions 573 can be arranged on the mounting portion 571 below the connecting portion 572, which can focus on strengthening the lower half of the mounting portion 571 and improve the strength of the lower half of the mounting portion 571. The lower half of the mounting portion 571 mentioned here refers to the part of the mounting portion 571 below the connecting portion 572. Figure 3

[0114] Optionally, the outer surface of the mounting portion 571 can also be provided with reinforcing ribs 5711. The number of the reinforcing ribs 5711 is multiple, and the multiple reinforcing ribs 5711 are arranged at intervals on the surface of the mounting portion 571 in the circumferential direction, which can enhance the strength of the mounting portion 571.

[0115] Specifically, each of the multiple reinforcing ribs 5711 can extend along the axial direction of the mounting portion 571. Of course, the reinforcing ribs 5711 can also be arranged in parallel at intervals or in a non-parallel state. Either structure can enhance the strength of the mounting portion 571.

[0116] It should be noted that the number of the heat-generating members 56 can be one, two or more. In the case of two or more heat-generating members 56, the two or more heat-generating members 56 can be arranged in parallel or in a non-parallel state. Figure 3 ​In the embodiment, the number of the heat-generating components 56 is two, each of which is separated from the first circuit board 53. The structure of the electric control box assembly 50 can realize rapid heat dissipation of the heat-generating components 56, improve the service life of the heat-generating components 56, and reduce the maintenance cost of the heat-generating components 56.

[0117] Optionally, the number of the mounting racks 58 can be one, two or more, each of which is connected to the inner surface of one side wall of the electric control box 51. The number of the mounting racks 58 can be determined according to the number of the heat-generating components 56. When the number of the heat-generating components 56 is large, the number of the mounting racks 58 can also be increased.

[0118] Alternatively, the number of the plug-in holes 5811 on the mounting rack 58 can be increased, for example, the number of the plug-in holes 5811 on each mounting rack 58 is changed from two to three or four, so that more heat-generating components 56 can be installed on one mounting rack 58.

[0119] In some embodiments, the electric control box 51 comprises a second wall 518 connected to the first wall 517 to form part of the mounting cavity 511. The second wall 518 of the electric control box 51 is provided with wiring ports 515, preferably four or five wiring ports 515, which are spaced along the length of the second wall 518 and are respectively used for passing wires connected to the inside of the electric control box assembly 50. Specifically, each wiring port 515 is connected to one wire for electrical connection between the electric control box assembly 50 and the heat pump water heater 1, wherein the wire comprises at least two strong electric cables and at least two weak electric cables.

[0120] To meet the electrical safety specifications, the strong electric cables and the weak electric cables are arranged along different wiring ports 515, so that the two types of cables are laid along different paths when connected outside the electric control box assembly 50, effectively avoiding cross interference, and at the same time, the strong electric cables and the weak electric cables are drawn out from different positions, reducing interference and safety hazards during wiring layout, and meeting the requirements of electrical safety design standards. Preferably, the wiring port 515 is a rubber sealed wire hole, a wire sheath hole or a fixed sleeve structure with a sealing ring, which is used to improve the protection level (such as waterproof, dustproof, etc.) of the connection.

[0121] As shown in Figure 8 , the second wall 518 of the electric control box 51 is provided with four wiring ports 515, each of which is connected to one wire for electrical connection between the electric control box assembly 50 and the heat pump water heater 1. Figure 8 , the second wall 518 of the electric control box 51 is provided with four wiring ports 515, each of which is connected to one wire for electrical connection between the electric control box assembly 50 and the heat pump water heater 1. Figure 1An exploded structural schematic view of the electric control box assembly 50 is shown in FIG. 2, which further comprises a first mounting plate 531 and a second mounting plate 541, and the electric control box 51 is formed with a mounting cavity 511 having an opening, the first mounting plate 531 is arranged in the mounting cavity 511 and connected to the first wall 517, the first circuit board 53 is mounted on the side of the first mounting plate 531 away from the first wall 517, and the second mounting plate 541 is arranged in the mounting cavity 511 and connected to the electric control box 51, the second mounting plate 541 is arranged in parallel 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, and the second circuit board 54 is mounted on the side of the second mounting plate 541 away from the first mounting plate 531.

[0122] According to the electric control box assembly 50 of the present application, the first mounting plate 531 is arranged at the first wall 517 of the electric control box 51, the second mounting plate 541 is arranged in 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 are arranged in front and back stacking in the limited mounting cavity 511 space, wherein the front and back directions are the depth directions of the electric control box assembly 50, thereby significantly improving the utilization efficiency of the internal space of the electric control box 51. Compared with the conventional way of fixing multiple circuit boards transversely side by side or stacking, the present application avoids direct stacking interference between the circuit boards through the layered arrangement of the 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 electric control box assembly 50, and providing higher spatial adaptability for the integration of multifunctional modules.

[0123] In some embodiments, the first wall 517 is provided with a mounting groove 516, and the first mounting plate 531 is mounted in the mounting groove 516 and connected to the bottom wall of the mounting groove 516 in a detachable manner. Preferably, the mounting groove 516 is a rectangular recess structure arranged on the inner side of the first wall 517. The groove bottom surface of the mounting groove 516 is provided with a plurality of screw holes, and the first mounting plate 531 is connected to the groove bottom surface by screws to form a stable and detachable mounting relationship. The four peripheral groove walls of the mounting groove 516 can be provided with positioning protrusions or limiting ribs to assist the first mounting plate 531 in achieving precise positioning and anti-offset during installation.

[0124] By setting the mounting groove 516 on the first wall 517 and embedding the first mounting plate 531 in the mounting groove 516, not only the stable installation and accurate positioning of the first mounting plate 531 are achieved, but also the installation space of the circuit board is further embedded and accommodated to the wall surface of the shell. Compared with the traditional way of suspending the mounting plate in the middle of the mounting cavity 511, the longitudinal space inside the mounting cavity 511 is significantly saved. This structure enables the multiple circuit boards in the electric control box assembly 50 to be efficiently distributed on different levels, releasing more effective arrangement space for the second mounting plate, heat dissipation member, wiring assembly and other structures, thereby improving the structural compactness and space utilization efficiency inside the electric control box assembly 50 as a whole, and is particularly suitable for heat pump water heaters with limited space or high demand for multi-functional integration.

[0125] Further, the bottom wall of the mounting groove 516 is provided with a heat dissipation opening 514, the first mounting plate 531 is installed in the mounting groove 516 and blocks the heat dissipation opening 514, forming an inner seal of the heat dissipation opening 514. The side of the first mounting plate 531 facing the heat dissipation opening 514 is provided with a heat dissipation component, preferably a heat dissipation fin, a heat dissipation block or a heat conduction structural member. The heat dissipation component is arranged between the first mounting plate 531 and the heat dissipation opening 514 and corresponds to the position of the heat dissipation opening 514, and at least partially protrudes out of the heat dissipation opening 514 to the outside of the electric control box 51 to realize direct heat exchange with the external air or external heat dissipation structure.

[0126] Preferably, the heat dissipation component is installed on the first mounting plate 531 by heat conduction glue, screwing or one-piece forming, and is located on the heat conduction path relative to the back position of the heat generating element of the first circuit board 53. The heat dissipation component protrudes out of the heat dissipation opening 514 on the bottom wall of the mounting groove 516 and is directly exposed to the external air flow field, greatly enhancing the heat dissipation and ventilation effect and avoiding heat accumulation in the mounting cavity 511.

[0127] In some embodiments, the first mounting plate 531 is detachably connected to the first wall 517 of the electric control box 51, and the second mounting plate 541 is also detachably connected to the electric control box 51. Specifically, the detachable manner is a screw connection structure, that is, the first mounting plate 531 and / or the second mounting plate 541 are connected to the first wall 517 or the second wall 518 of the electric control box 51 through screws and preset threaded holes. By setting the connection between the first mounting plate 531 and the first wall 517 and the connection between the second mounting plate 541 and the electric control box 51 as a screw connection structure, the mounting structure of the two circuit boards inside the electric control box 51 has good modularity and maintainability. When a user or a maintenance personnel needs to replace or repair a certain circuit board, the corresponding mounting plate can be quickly removed by detaching the screws, without the need to disassemble the electric control box 51 or other irrelevant components as a whole, which significantly improves the maintenance efficiency and reduces the maintenance difficulty. At the same time, the screw connection structure has good connection stability and anti-vibration performance, and is suitable for devices such as the heat pump water heater 1 that are long-term operated and have complex environments, to ensure the firmness and reliability of the structure.

[0128] Optionally, the electric control box assembly 50 further comprises an electric control box mounting plate 512 connected to the cabinet 10 of the heat pump water heater 1, which is used as a mounting base of the electric control box 51. When the electric control box 51 and the cabinet 10 are in a separated state, the electric control box 51 is still connected to the electric control box mounting plate 512 through a rotatable connection structure, so that the electric control box 51 can be rotated and opened or flipped relative to the electric control box mounting plate 512 about a preset axis. When the electric control box assembly 50 needs to be repaired or debugged, only the fixed connection between the electric control box 51 and the cabinet 10 needs to be loosened, so that the electric control box 51 can be rotated and opened relative to one side of the electric control box mounting plate 512, which significantly improves the maintenance convenience and work efficiency, and is particularly suitable for installation environments with limited space.

[0129] As Figure 9As shown, preferably, the rotatable connecting structure includes an L-shaped rotating member 513 arranged on one side of the electric control box 51 and a limiting opening 5121 arranged on the electric control box mounting plate 512. The L-shaped rotating member 513 has a connecting segment extending in the horizontal direction and a limiting segment extending in the vertical direction, and has an overall L-shaped structure. The connecting segment is fixedly connected to one side wall of the electric control box 51, and the limiting segment is insertable into the limiting opening 5121 on the electric control box mounting plate 512 in the mounted state to form a rotatable connection. In the normal mounted state, the electric control box 51 is fixedly connected to the cabinet 10 of the heat pump water heater 1 by bolts, and the L-shaped rotating member 513 is completely accommodated in the limiting opening 5121 and is in a non-bearing state. When the bolt connection between the electric control box 51 and the cabinet 10 is released, i.e., the electric control box 51 is separated from the cabinet 10, the limiting segment of the L-shaped rotating member 513 will abut against the edge of the limiting opening 5121, so that the electric control box 51 can be hung on the electric control box mounting plate 512. At this time, the electric control box 51 can be flipped or rotated open along the side of the mounting plate about the rotating shaft formed at the limiting opening 5121.

[0130] Further, as shown in Figure 10 the limiting opening 5121 is an open U-shaped groove, an arc-shaped groove or a dovetail-shaped notch, so as to limit the L-shaped rotating member 513 from being removed while allowing it to rotate about the rotating shaft.

[0131] In some embodiments, the electric control box assembly 50 further includes a terminal block 55 arranged in the mounting cavity 511 for electrically connecting wires from outside the electric control box assembly 50 to the first circuit board 53 or the second circuit board 54, and a heating element 56 which is an inductive device and is arranged in the mounting cavity 511 for filtering, voltage stabilization or providing electromagnetic compatibility function. The inductive device is a relatively large electronic component with a certain heating power. Preferably, the inductive device is arranged close to the heat dissipation plate at the top of the electric control box 51 to facilitate heat dissipation, wherein the y direction is the height direction of the electric control box assembly 50.

[0132] Further, as shown in Figure 10 the second mounting plate 541 includes a first plate body 5411, a second plate body 5412 and a third plate body 5413, wherein the second plate body 5412 and the third plate body 5413 are respectively arranged on opposite sides of the first plate body 5411 and respectively form a T-shaped or zigzag three-dimensional support structure. The second plate body 5412 extends along the thickness direction of the first plate body 5411 towards the first wall 517 and is detachably connected to the first wall 517. The third plate body 5413 extends along the thickness direction of the first plate body 5411 away from the first wall 517 and is detachably connected to the electric control box 51. The connection of the second plate body 5412 to the first wall 517 and the connection of the third plate body 5413 to the electric control box 51 realize the upper and lower separation installation logic, facilitate local disassembly during maintenance without affecting the overall structure, and reduce the difficulty and time cost of maintenance.

[0133] Specifically, the second plate body 5412 is provided with a lug structure protruding in the lateral direction, and the lug is provided with a connecting hole for screw fixing, so as to realize reliable connection with the first wall 517. The third plate body 5413 is provided with a flange structure, and the flange is also provided with a connecting hole, which is matched with the screw hole or buckle of the electric control box 51, so as to realize convenient assembly and disassembly.

[0134] Further, the second mounting plate 541 further comprises a support member 5414 arranged on the side of the first plate body 5411 away from the first mounting plate 531. Specifically, the two ends of the support member 5414 are connected with the second circuit board 54 and the first plate body 5411 respectively, for supporting and positioning the second circuit board 54, so that the second circuit board 54 and the first plate body 5411 are arranged at a distance. Preferably, the support member 5414 is at least two pairs of support columns or studs arranged at the opposite edge positions of the second circuit board 54. In this embodiment, since there is a predetermined distance between the second circuit board 54 and the first plate body 5411, the front and rear surfaces of the second circuit board 54 can have a heat dissipation space, which helps to diffuse heat and circulate air, improves the overall heat dissipation performance, and prolongs the service life of the second circuit board 54. At the same time, the interval distance brought by the support member 5414 makes the second circuit board 54 away from other metal structural members or housings, effectively avoiding the risk of short circuit, electric leakage and other risks caused by too close fitting, and meeting the electrical safety design requirements.

[0135] It should be noted that the electric control box assembly 50 also comprises a heat dissipation fin 532 arranged in the air duct of the heat pump water heater 1, which can further dissipate the heat inside the electric control box assembly 50 through the heat dissipation fin 532.

[0136] The heat dissipation fin 532 is a finned tube added to the base pipe, mainly used for enhancing heat exchange effect. It improves heat exchange efficiency by increasing heat exchange area and optimizing fluid flow state. The heat dissipation fin 532 usually adopts the way of convection heat dissipation, that is, through the exchange of heat energy and cold air to achieve the purpose of heating or cooling. The heat dissipation fin 532 includes plate fin and spiral finned tube, etc. The plate fin is mainly composed of metal sheet, which improves heat exchange efficiency by increasing heat exchange area and optimizing fluid flow state. The spiral finned tube radiator is a finned tube wrapped outside the steel pipe in the form of sheet, which is composed of multiple spiral finned tubes to form the whole radiator, with excellent heat dissipation effect.

[0137] Preferably, the heat dissipation fins 532 are fixed on the first mounting plate 531 by screwing structure or guide rail buckling mode, and are in heat conduction contact with the heat generating devices of the first circuit board 53. By arranging the heat dissipation fins 532 on the side of the first circuit board 53 facing the second mounting plate 541, the heat generated by the first circuit board 53 during operation can be efficiently conducted to the heat dissipation fins 532 and diffused into the mounting cavity 511, thereby reducing the working temperature of the first circuit board 53 and its key elements, and enhancing the system thermal stability and working reliability.

[0138] It needs to be highlighted that when the electric control box assembly 50 is arranged in the heat pump water heater 1, the heat generating device 56 is located above the limiting portion 574, therefore, the limiting portion 574 is placed in a state close to horizontal, which can play a blocking and limiting role on the heat generating device 56, so that the heat generating device 56 cannot fall out of the containing space, thereby enabling the heat generating device 56 to be stably formed in the interior of the heat dissipation box 57.

[0139] Alternatively, the heat generating device 56 here can also continue to be arranged on the first circuit board 53, and the heat conduction connection between the heat generating device 56 and the electric control box 51 can be realized by arranging a heat conduction structure between the heat generating device 56 and the electric control box 51, wherein the heat conduction structure can adopt a heat conduction sheet, a heat conduction box or a heat pipe structure, which will not be described here.

[0140] Continuing to refer to Figure 8 As shown, the second circuit board 54 and the first circuit board 53 are arranged in a stacked and spaced manner, the electronic components on the first circuit board 53 can be cooled by the heat dissipation fins 532, and the heat generating device 56, such as an inductor, can be cooled independently of the first circuit board 53 by the second wall 518 of the electric control box 53, so that the electric control box assembly 50 can utilize different plate bodies of the electric control box 53 for cooling. In addition, the volume of the heat generating device 56 is usually large, and here the heat generating device 56 and the first circuit board 53 are arranged at different positions in the electric control box 53, which can enable the heat generating device 56 to be independently installed and cooled, and can quickly discharge the heat in the electric control box 53.

[0141] In addition, the second circuit board 54 and the first circuit board 53 are arranged in a stacked and spaced manner here, which can make full use of the space in the electric control box 53, improve the utilization rate of the space in the electric control box 53, and make the distribution of components in the electric control box 53 more compact.

[0142] As Figures 12 to 14 shown, Figure 12 a structural schematic view of a heat pump water heater according to an embodiment of the present application is schematically shown, Figure 13 a partial structural schematic view of a heat pump water heater according to an embodiment of the present application is schematically shown from a first perspective, Figure 14The second aspect of the embodiments of the present application proposes a heat pump water heater 1, which comprises a box body 10 and the electric control box assembly 50 mentioned in the above embodiments, and at least part of the electric control box assembly 50 is arranged inside the box body 10.

[0143] Specifically, the electric control box assembly 50 is detachably connected with the inner surface of the box body 10, so that the detachable installation of the electric control box assembly 50 on the box body 10 can be realized. The specific connection mode can be screw connection, or riveting and the like.

[0144] Optionally, the electric control box assembly 50 herein can be arranged integrally in the air duct of the heat pump water heater 1, so that the heat emitted by the electric control box assembly 50 can be discharged from the heat pump water heater 1 as soon as possible through the airflow in the air duct, thereby improving the heat dissipation efficiency of the electric control box assembly 50.

[0145] Optionally, the heat pump water heater 1 further comprises a first heat exchanger 20, a second heat exchanger 30, a compressor 40, a fan assembly 60 and a wire controller assembly 70. The box body 10 is used to accommodate and support the functional components of the heat pump water heater 1, at least part of the electric control box assembly 50 is arranged in the interior of the box body 10 in a detachable manner, and is electrically connected or signal connected with the compressor 40, the fan assembly 60 and the wire controller assembly 70, for coordinating the operation logic of the functional components.

[0146] It should be noted that one of the first heat exchanger 20 and the second heat exchanger 30 is a heat exchanger, and the other of the first heat exchanger 20 and the second heat exchanger 30 is a condenser.

[0147] The working process of the heat pump water heater 1 mainly includes the following steps:

[0148] Heat absorption process: the heat pump water heater absorbs low-grade heat energy in the air, water or soil through the evaporator. The refrigerant evaporates in the evaporator and absorbs these low-grade heat energy.

[0149] Compression process: the refrigerant that has absorbed heat energy is compressed into high-temperature and high-pressure gas by the compressor. This process consumes a small amount of electrical energy, but can significantly increase the temperature and pressure of the refrigerant.

[0150] Heat release process: the high-pressure and high-temperature refrigerant gas enters the condenser to release heat to the heating circulating water or the water in the water tank. The cooled refrigerant returns to the evaporator through the expansion valve to continue absorbing heat and start the next cycle.

[0151] Heating process: the water in the condenser is heated, and the temperature gradually rises until it reaches the use requirement.

[0152] This process is repeated continuously to raise the water temperature.

[0153] The structure of other parts of the present application is described in the prior art, and will not be described here.

[0154] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electrical control box assembly characterized by, The electric control box assembly comprises: an electric control box formed with a mounting cavity with an opening; a box cover connected with the electric control box and covering the opening; a first circuit board arranged in the mounting cavity; a heating element electrically connected with the first circuit board; and a heat dissipation box, the heating element is mounted on the heat dissipation box and is in thermal conductive connection with the heat dissipation box, at least part of the heat dissipation box is attached to the inner surface of the electric control box and is in thermal conductive connection with the electric control box.

2. The electrical control box assembly of claim 1, wherein, The electric control box assembly further comprises a mounting frame connected with the electric control box, and the mounting frame is provided with a plug-in hole, and at least part of the heat dissipation box is arranged in the plug-in hole.

3. The electrical control box assembly of claim 2, wherein, The mounting frame comprises a body portion and at least one bending portion, at least one of the bending portions is arranged at the circumferential edge of the body portion, and the bending portion comprises a first plate portion and a second plate portion intersecting with each other, wherein the first plate portion is connected with the body portion, and the second plate portion is connected with the electric control box.

4. The electrical control box assembly of claim 3, wherein, The number of the bending portions is at least two, and the at least two bending portions are arranged along the circumference of the body portion, and the second plate portion of at least one of the bending portions is detachably connected with the electric control box.

5. The electrical control box assembly of claim 3, wherein, The heat dissipation box comprises: a mounting portion provided with a containing space, and the heating element is arranged in the containing space; and a connecting portion connected with the mounting portion, and the connecting portion is detachably connected with the body portion.

6. The electrical control box assembly of claim 5, wherein, The mounting portion is in a cylindrical structure with both ends open, and one end of the mounting portion along the axial direction thereof is attached to the electric control box.

7. The electrical control box assembly of claim 6, wherein, The connecting portion is arranged on the circumferential outer side of the mounting portion and intersects with the axial direction of the mounting portion.

8. The electrical control box assembly of claim 6, wherein, The distance between one end of the mounting portion facing the mounting frame and the connecting portion is greater than the distance between the body portion and the second plate portion.

9. The electrical control box assembly of claim 5, wherein, The heat dissipation box further comprises a limiting portion connected with the mounting portion to limit the position of the heating element in the containing space.

10. The electrical control box assembly of claim 9, wherein, The limiting portion extends along the radial direction of the mounting portion, and at least one end of the limiting portion is connected with the mounting portion.

11. The electrical control box assembly of any one of claims 5-10, wherein, The containing space is provided with a heat-conducting insulating adhesive, and the heating element is bonded to the heat dissipation box through the heat-conducting insulating adhesive.

12. The electrical control box assembly of any one of claims 1 to 10, wherein, The first circuit board and the heating element are respectively arranged corresponding to different plate bodies of the electric control box.

13. The electrical control box assembly of any one of claims 1 to 10, wherein, The electric control box assembly further comprises a second circuit board, and the second circuit board and the first circuit board are arranged in a stacked manner.

14. The electrical control box assembly of any one of claims 1-10, wherein, The heating element comprises an inductor.

15. The electrical control box assembly of claim 13, wherein, The electric control box comprises a first mounting plate and a first wall arranged opposite the opening, the first wall is provided with a mounting slot, the first mounting plate is mounted in the mounting slot, and the first mounting plate is detachably connected with the bottom wall of the mounting slot.

16. The electrical control box assembly of claim 15, wherein, The bottom wall of the mounting slot is provided with a heat dissipation opening, the first mounting plate is arranged on the heat dissipation opening, and one side of the first mounting plate facing the heat dissipation opening is provided with a heat dissipation component, and the heat dissipation component protrudes out of the heat dissipation opening.

17. The electrical control box assembly of claim 15, wherein, The electric control box further comprises a second mounting plate, the second mounting plate comprises a first plate body, a second plate body and a third plate body, and the second plate body and the third plate body are respectively arranged on opposite sides of the first plate body. The first plate body is provided with the second circuit board on the side away from the first wall, the second plate body extends along the thickness direction of the first plate body towards the direction close to the first wall and is detachably connected with the first wall, and the third plate body extends along the thickness direction of the first plate body towards the direction away from the first wall and is detachably connected with the side wall of the electric control box.

18. The electrical control box assembly of claim 17, wherein, The first plate body is provided with a support on the side away from the first wall, the second circuit board is connected with the support, and the second circuit board has a spacing space with the first plate body.

19. A heat pump water heater, characterized by, Comprising: a box body; The electric control box assembly according to any one of claims 1 to 18 is arranged at least partially inside the box body.

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