Electrical control box and heat pump equipment

Abstract

This utility model relates to the field of electrical control technology, specifically to an electrical control box and a heat pump device. This application aims to solve the problem of limited internal space in electrical control boxes, which prevents them from adapting to product upgrades and iterations. To this end, the electrical control box of this application includes: a shell with an internal mounting surface; a first circuit module fixedly connected to the mounting surface; a first mounting bracket fixedly connected to the mounting surface and at least partially covering the side of the first circuit module away from the mounting surface; and a first electrical component fixedly connected to the front side of the first mounting bracket. By providing a first mounting bracket, with the first mounting bracket at least partially covering the side of the first circuit module away from the mounting surface, and then mounting the first electrical component on the first mounting bracket, the electrical component can be added without changing the internal layout of the electrical control box, meeting the needs of overall machine upgrades, and saving manpower and resources.

Description

Technical Field

[0001] This utility model relates to the field of electrical control technology, specifically to an electrical control box and a heat pump device. Background Technology

[0002] A heat pump is a device that transfers heat energy from a lower heat source to a higher heat source. For heat pump equipment with higher power or larger horsepower, an electrical control box is usually installed inside the equipment to control the start-up, shutdown, and precise operation of the equipment.

[0003] During the product development phase, the shape, size, and internal layout of the electrical control box are carefully designed and arranged. However, during product upgrades and iterations, it is inevitable to add new functions or external electrical components as required by customers. Due to space constraints inside the electrical control box, it is impossible to add additional electrical control components. For manufacturers, redesigning the electrical control box at this time not only requires re-molding, leading to increased production costs, but also inevitably results in a waste of human resources.

[0004] Accordingly, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] To address at least one of the aforementioned problems in the prior art, namely, to solve the problem that the limited internal space of the electrical control box cannot adapt to product upgrades and iterations, this application provides an electrical control box, which includes:

[0006] An outer casing, wherein a mounting base is formed inside the outer casing;

[0007] The first circuit module is fixedly connected to the mounting base surface;

[0008] A first mounting bracket is fixedly connected to the mounting base and at least partially covers the side of the first circuit module away from the mounting base;

[0009] The first electrical component is fixedly connected to the front side of the first mounting bracket.

[0010] The electrical control box of this application, by setting a first mounting bracket, and the first mounting bracket at least partially covering the side of the first circuit module away from the mounting base, and then installing the first electrical component on the first mounting bracket, can realize the addition of electrical components without changing the internal layout of the electrical control box, meet the needs of the whole machine upgrade, and save manpower and material resources.

[0011] In the preferred embodiment of the above-mentioned electrical control box, the first mounting bracket includes a first mounting plate, a first transition plate, and a first fixing plate. The two sides of the first mounting plate along the first direction are respectively bent and connected to a first transition plate. The side of each first transition plate away from the first mounting plate is respectively bent and connected to a first fixing plate. The two first fixing plates are fixedly connected to the mounting bottom surface, and the first electrical component is fixedly connected to the first mounting plate.

[0012] The structural shape of the first mounting bracket allows for the addition of electrical components without affecting the ventilation and heat dissipation of the first circuit module.

[0013] In the preferred embodiment of the above-mentioned electrical control box, the first fixing plate is bent inward, and a first connecting hole is provided on the first fixing plate; a through hole is provided on the first mounting plate corresponding to the position of the first connecting hole; and / or

[0014] The first mounting plate has heat dissipation holes in the middle.

[0015] The first fixed plate is bent inside the box, which saves space occupied by the first mounting bracket. Through holes are provided on the first mounting plate to facilitate the installation and removal of the first mounting bracket. Heat dissipation holes are provided in the middle of the first mounting plate to further improve the heat dissipation of the first circuit module.

[0016] In the preferred embodiment of the above-mentioned electrical control box, the first electrical component is a terminal block; and / or

[0017] Two first electrical components are provided, and the two first electrical components are spaced apart along a first direction; and / or

[0018] The first circuit module is a power supply board.

[0019] In the preferred embodiment of the above-mentioned electrical control box, the electrical control box further includes a second circuit module and a third circuit module. The second circuit module and the third circuit module are both fixedly connected to the mounting base and are spaced apart above the first circuit module along a first direction. A second mounting bracket is provided between the second circuit module and the third circuit module, and a second electrical component and a third electrical component are provided on the second mounting bracket.

[0020] By setting a second mounting bracket between the second and third circuit modules, and mounting the second and third electrical components on the second mounting bracket, the space of the electrical control box can be further expanded, and the overall functionality of the machine can be increased.

[0021] In the preferred embodiment of the above-mentioned electrical control box, the second mounting bracket includes a second mounting plate, a second transition plate, and a second fixing plate. The two sides of the second mounting plate arranged along the second direction are respectively bent and connected to a second transition plate. The side of each second transition plate away from the second mounting plate is respectively bent and connected to a second fixing plate. The two second fixing plates are fixedly connected to the mounting bottom surface. The second electrical component and the third electrical component are fixedly connected to the second mounting plate.

[0022] In the preferred embodiment of the above-mentioned electrical control box, the second electrical component is a leakage current protection switch, the third electrical component is an AC contactor, a guide rail is fixedly connected to the second mounting bracket, the leakage current protection switch is mounted on the guide rail, the leakage current protection switch is connected to the AC contactor, and the AC contactor is connected to the third circuit module.

[0023] The installation of a leakage current protection switch and an AC contactor allows the electrical control box to be connected to high-power electrical devices.

[0024] In the preferred embodiment of the above-mentioned electrical control box, the second circuit module is a drive board, the third circuit module is a computer board, and the computer board is connected to the drive board.

[0025] In the preferred embodiment of the above-mentioned electrical control box, the computer board has an active interface and a passive interface, and the AC contactor is connected to the passive interface.

[0026] By connecting the AC contactor to the passive interface, short circuits in electrical components can be prevented from burning out the computer board, thus improving the safety of the electrical control box.

[0027] This application also provides a heat pump device, which includes the electrical control box described in any one of the above technical solutions.

[0028] The heat pump equipment of this application, by setting a first mounting bracket inside the electrical control box, and the first mounting bracket at least partially covering the side of the first circuit module away from the mounting base, and then mounting the first electrical component on the first mounting bracket, can realize the addition of electrical components without changing the internal layout of the electrical control box, meet the needs of product upgrade and iteration, and save manpower and material resources. Attached Figure Description

[0029] The present application will now be described with reference to the accompanying drawings. In the drawings:

[0030] Figure 1 This is a front view of the electrical control box of this application;

[0031] Figure 2 This is a structural diagram of the electrical control box of this application from a first-view perspective;

[0032] Figure 3 for Figure 2 A magnified view of a portion at point A;

[0033] Figure 4 This is a structural diagram of the electrical control box of this application from a second-view perspective;

[0034] Figure 5 for Figure 4 A magnified view of a section at point B.

[0035] List of reference numerals

[0036] 1. Housing; 11. Mounting base; 21. First circuit module; 22. Second circuit module; 23. Third circuit module; 31. First mounting bracket; 311. First mounting plate; 312. First transition plate; 313. First fixing plate; 314. First connecting hole; 315. Through hole; 316. Heat dissipation hole; 32. Second mounting bracket; 321. Second mounting plate; 322. Second transition plate; 323. Second fixing plate; 324. Second connecting hole; 33. Third mounting bracket; 41. First electrical component; 43. Third electrical component; 5. Main terminal block; 6. Box filter; 7. Guide rail. Detailed Implementation

[0037] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. For example, although the second and third circuit modules are located above the first circuit module in the drawings, this positional relationship is not fixed and can be adjusted as needed to adapt to specific application scenarios. For example, the first circuit module may also be located above the second and third circuit modules, or to the left or right of the second or third circuit module, etc.

[0038] It should be noted that in the description of this application, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] First refer to Figure 1 and Figure 2 The electrical control box of this application is described below.

[0041] like Figure 1 and Figure 2 As shown, to address the issue of limited internal space in the electrical control box hindering product upgrades and iterations, the electrical control box of this application includes: a shell 1, a first circuit module 21, a first mounting bracket 31, and a first electrical component 41. The shell 1 has an internal mounting base 11. The first circuit module 21 is fixedly connected to the mounting base 11. The first mounting bracket 31 is fixedly connected to the mounting base 11 and at least partially covers the side of the first circuit module 21 away from the mounting base 11. The first electrical component 41 is fixedly connected to the front side of the first mounting bracket 31.

[0042] In one specific application scenario, the outer shell 1 of an existing electrical control box is designed to house various circuit modules and electrical components. These circuit modules and electrical components are installed adjacent to each other on the internal mounting surface 11 of the electrical control box. Although there are gaps between adjacent modules or electrical components, these gaps are insufficient to install new electrical components. However, this application addresses this by setting a first mounting bracket 31 on the side of the first circuit module 21 away from the mounting surface 11 to at least partially cover the first circuit module 21, and then fixing the first electrical component 41 on the first mounting bracket 31. This allows for a double-layer installation of the first circuit module 21 and the first electrical component 41 by utilizing the depth space inside the electrical control box.

[0043] As can be seen, the electrical control box of this application, by setting a first mounting bracket 31, and the first mounting bracket 31 at least partially covering the side of the first circuit module 21 away from the mounting base 11, and then mounting the first electrical component 41 on the first mounting bracket 31, can realize the addition of electrical components without changing the internal layout of the electrical control box, meet the needs of the whole machine upgrade, and save manpower and material resources.

[0044] The following is combined Figures 1 to 5 This paper describes one specific embodiment of the electrical control box of this application.

[0045] like Figures 1 to 5As shown, in one specific embodiment, the electrical control box includes a housing 1, a first circuit module 21, a second circuit module 22, a third circuit module 23, a first mounting bracket 31, a second mounting bracket 32, a third mounting bracket 33, a first electrical component 41, a second electrical component (not shown in the figure), a third electrical component 43, a main terminal block 5, and a box-type filter 6.

[0046] The outer casing 1 is generally rectangular, and its interior forms a mounting base 11 and four side surfaces surrounding the mounting base 11. (Refer to...) Figure 1 and Figure 2 And in accordance with Figure 1 As shown, in terms of overall layout, the electrical control box is divided into upper and lower layers. The lower layer, from left to right, houses the main terminal block 5, the box filter 6, and the first circuit module 21. The upper layer, from left to right, houses the second circuit module 22 and the third circuit module 23. A horizontally extending third mounting bracket 33 is fixedly connected to the lower layer of the mounting base 11. The main terminal block 5, the box filter 6, and the first circuit module 21 are all mounted on the third mounting bracket 33, thus achieving indirect fixed connection to the mounting base 11. In this application, the first circuit module 21 is a power board, the second circuit module 22 is a drive board, and the third circuit module 23 is a computer board. The power board is connected to the computer board to provide power, and the computer board is connected to the drive board to control its operation. The drive board is connected to the box filter 6 via wires, and the box filter 6 is connected to the main terminal block 5 via wires. The main terminal block 5 is used to connect the power cord of an electric device, such as the compressor of a heat pump device, thereby achieving the circuit connection from the drive board to the electric device.

[0047] See Figure 2 and Figure 3 The first mounting bracket 31 includes a first mounting plate 311, a first transition plate 312, and a first fixing plate 313. The first mounting plate 311 is positioned along a first direction (i.e.,...). Figure 1A first transition plate 312 is bent and connected to each of the two sides of the first mounting plate 311 in the horizontal direction. A first fixing plate 313 is bent and connected to the side of each first transition plate 312 away from the first mounting plate 311. The two first fixing plates 313 are fixedly connected to the mounting base 11. Preferably, the first fixing plate 313 is bent inward and has a first connecting hole 314. Correspondingly, the first mounting plate 311 has a through hole 315 at the position corresponding to the first connecting hole 314. In this embodiment, each first fixing plate 313 has two first connecting holes 314 and the first mounting plate 311 has four through holes 315. The third mounting bracket 33 has a threaded hole at the position corresponding to the first connecting hole 314. By screwing the first mounting bracket 314 into the threaded hole, the first mounting bracket can be fixed on the third mounting bracket 33. After the first mounting bracket 31 is installed, the first circuit module 21 is completely covered inside it.

[0048] The first electrical component 41 is fixedly connected to the first mounting plate 311. Specifically, the first electrical component 41 is a terminal block, and two terminal blocks are provided, with the two terminal blocks arranged along a first direction ( Figure 1 The terminals are spaced horizontally at both ends of the first mounting plate 311. A heat dissipation hole 316 is also provided in the middle of the first mounting plate 311, with two terminal blocks located on either side of the heat dissipation hole 316. The two terminal blocks are connected to the computer board via wires, which facilitates the connection of external loads and avoids situations where the power cord of the external load cannot be directly connected to the computer board.

[0049] See Figure 4 and Figure 5 The second mounting bracket 32 ​​is installed in the gap between the second circuit module 22 and the third circuit module 23. The second mounting bracket 32 ​​is equipped with a second electrical component and a third electrical component 43. Specifically, the second mounting bracket 32 ​​includes a second mounting plate 321, a second transition plate 322, and a second fixing plate 323. The second mounting plate 321 is positioned along a second direction (…). Figure 1 A second transition plate 322 is bent and connected to each of the two sides of the vertically oriented mounting plate 321. A second fixing plate 323 is bent and connected to the side of each second transition plate 322 away from the second mounting plate 321. The two second fixing plates 323 are fixedly connected to the mounting base 11. Preferably, the second fixing plates 323 are bent outwards, and corresponding threaded holes are provided on the mounting base 11 at the positions corresponding to the second connecting holes 324. In this embodiment, each second fixing plate 323 has two second connecting holes 324, and four threaded holes are correspondingly provided on the mounting base 11. Screws are passed through the second connecting holes 324 and screwed into the threaded holes, thus fixing the second mounting bracket to the mounting base 11.

[0050] The second and third electrical components 43 are fixedly connected to the second mounting plate 321. The second electrical component is a residual current device (RCD) (not shown in the figure), and the third electrical component 43 is an AC contactor. The upper side of the second mounting plate 321 (as shown in the figure) Figure 1 (Based on the indicated orientation) A guide rail 7 is fixedly connected, and the residual current device (RCD) is mounted on the guide rail 7. The AC contactor is fixedly connected to the second mounting plate 321 and located below the RCD. In this embodiment, the RCD is connected to the AC contactor and the main power supply, and the AC contactor is connected to the computer board. More specifically, the computer board has an active interface and a passive interface, and the AC contactor is connected to the passive interface. Thus, high-power electrical devices, such as electric heating rods, can be connected to the RCD.

[0051] In the above-described specific embodiments, the structural shape of the first mounting bracket 31 allows for the addition of electrical components without affecting the ventilation and heat dissipation of the first circuit module 21. The first fixing plate 313 is bent inwards, saving space occupied by the first mounting bracket 31. Through holes 315 on the first mounting plate 311 facilitate the installation and removal of the first mounting bracket 31. Heat dissipation holes 316 are provided in the middle of the first mounting plate 311, further improving the heat dissipation effect of the first circuit module 21. By setting a second mounting bracket 32 ​​between the second circuit module 22 and the third circuit module 23, and mounting the second and third electrical components 43 on the second mounting bracket 32, the space of the electrical control box can be further expanded, increasing the overall functionality. The installation of a leakage current protection switch and an AC contactor allows the electrical control box to connect to high-power electrical components. By connecting the AC contactor to a passive interface, short circuits in electrical components can be prevented from burning out the computer board, improving the safety of the electrical control box.

[0052] It should be noted that the above preferred embodiments are merely illustrative of the principles of this application and are not intended to limit the scope of protection of this application. Without departing from the principles of this application, those skilled in the art can adjust the above settings to make this application applicable to more specific application scenarios.

[0053] For example, in an alternative embodiment, although the specific embodiments described above are based on the electrical control box including a housing 1, a first circuit module 21, a second circuit module 22, a third circuit module 23, a first mounting bracket 31, a second mounting bracket 32, a third mounting bracket 33, a first electrical component 41, a second electrical component, a third electrical component 43, a main terminal block 5, and a box-type filter 6, the specific arrangement of the electrical control box is not unique. Those skilled in the art can adjust it, as long as the adjusted technical solution satisfies the condition that the first mounting bracket 31 is mounted on the side of the first circuit module 21 away from the mounting base 11, and the first electrical component 41 is mounted on the first mounting bracket 31. In other words, besides the housing 1, the first circuit module 21, the first mounting bracket 31, and the first electrical component 41, those skilled in the art can arbitrarily choose whether to add other circuit modules and electrical components.

[0054] For example, in another alternative embodiment, the specific arrangement of the first mounting bracket 31 is not restrictive. Based on the premise that it can at least partially cover the first circuit module 21, those skilled in the art can adjust the shape and arrangement of the first mounting bracket 31. For instance, provided that the area is sufficient to install the first electrical component 41, the first mounting bracket 31 can only partially cover the first circuit module 21, which facilitates heat dissipation of the first circuit module 21. Furthermore, the first mounting plate 311 of the first mounting bracket 31 may not have heat dissipation holes 316 in the middle, relying solely on the gap between the first mounting bracket 31 and the first circuit module 21 for heat dissipation. Also, the first fixing plate 313 of the first mounting bracket 31 can be bent outwards, provided there is sufficient installation space after bending outwards. When the first fixing plate 313 is bent outwards, the through hole 315 on the first mounting plate 311 can also be omitted. For example, the first transition plate 312 and the first fixing plate 313 can also be arranged around the four sides of the first mounting plate 311. This can increase the connection stability of the first mounting bracket 31, but it is also not conducive to the heat dissipation of the first circuit module 21.

[0055] For example, in another alternative embodiment, although the above embodiment is described with the first electrical device 41 as a terminal block as an example, this is only a preferred embodiment. Those skilled in the art can adjust it. For example, the first electrical device 41 can also be any device that needs to be installed in the electrical control box, such as a circuit breaker, contactor, etc.

[0056] For example, in another alternative embodiment, the configuration of the first circuit module 21 as a power board is merely exemplary and can be adjusted by those skilled in the art. For instance, the first circuit module 21 can also be a circuit board that combines power supply and control, or the first circuit module 21 can also be a computer board or a driver board, as long as the depth space of the electrical control box allows for the installation of the first mounting bracket 31.

[0057] For example, in another alternative implementation, although the above implementation is described with the example of having a second circuit module 22 and a third circuit module 23 in the electrical control box, the second circuit module 22 and the third circuit module 23 are not necessary. Those skilled in the art can choose whether to set them based on specific needs. For example, the second circuit module 22 and the first circuit module 21 can be combined into a circuit board, or the third circuit module 23 can be omitted.

[0058] For example, in another alternative embodiment, a second mounting bracket 32 ​​is provided inside the electrical control box. The second electrical component and the third electrical component 43 are mounted on the second mounting bracket 32. This is merely an exemplary embodiment. Those skilled in the art will understand that the second mounting bracket 32, the second electrical component, and the third electrical component 43 are not mandatory. Those skilled in the art can choose whether to set them based on the specific application scenario.

[0059] For example, in another alternative embodiment, the specific structural form of the second mounting bracket 32 ​​is not fixed. Provided there is sufficient space for installation, those skilled in the art can adjust the structure of the second mounting bracket 32 ​​without deviating from the principle of this application.

[0060] For example, in another alternative embodiment, although the above embodiment is described with the main terminal block 5, the box filter 6, the first circuit module 21 and the first mounting bracket 31 fixed on the third mounting bracket 33 as an example, this is only one possible embodiment. In other embodiments, the third mounting bracket 33 may be omitted, and the above components may be fixed on the mounting base 11 of the electrical control box instead.

[0061] For example, in another alternative implementation, the arrangement of connecting the AC contactor to the passive interface of the computer board is merely exemplary. Such an arrangement can prevent short circuits from burning out the computer board. Of course, when there is no need to install high-power electrical devices, the wires can also be connected to the active interface.

[0062] Of course, the alternative implementation methods described above, as well as the alternative implementation methods and preferred implementation methods, can be used in combination to create new implementation methods that are suitable for more specific application scenarios.

[0063] This application also provides a heat pump device, which includes the electrical control box in any of the above embodiments. Preferably, the heat pump device of this application is a heat pump water heater, and the electrical control box is used to control the automatic operation of the heat pump water heater.

[0064] The heat pump equipment of this application, by setting a first mounting bracket 31 in the electrical control box, and the first mounting bracket 31 at least partially covering the side of the first circuit module 21 away from the mounting bottom surface 11, and then mounting the first electrical component 41 on the first mounting bracket 31, can realize the addition of electrical components without changing the internal layout of the electrical control box, meet the needs of product upgrade and iteration, and save manpower and material resources.

[0065] Of course, the heat pump equipment, specifically a heat pump water heater, is merely an example. Those skilled in the art can apply the electrical control box of this application to other application scenarios based on specific needs. For example, the electrical control box of this application can also be applied to application scenarios that require a separate electrical control box, such as air source heat pumps and heat pump heating units.

[0066] Those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0067] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. An electrical control box, characterized in that, The electrical control box includes: An outer casing, wherein a mounting base is formed inside the outer casing; The first circuit module is fixedly connected to the mounting base surface; The first mounting bracket is fixedly connected to the mounting base and at least partially covers the side of the first circuit module away from the mounting base; The first electrical component is fixedly connected to the front side of the first mounting bracket.

2. The electrical control box according to claim 1, characterized in that, The first mounting bracket includes a first mounting plate, a first transition plate, and a first fixing plate. The first mounting plate has a first transition plate bent and connected to each of its two sides along a first direction. The first transition plate has a first fixing plate bent and connected to each side away from the first mounting plate. The two first fixing plates are fixedly connected to the mounting base. The first electrical component is fixedly connected to the first mounting plate.

3. The electrical control box according to claim 2, characterized in that, The first fixing plate is bent inward, and a first connecting hole is formed on the first fixing plate; a through hole is formed on the first mounting plate corresponding to the position of the first connecting hole; and / or The first mounting plate has heat dissipation holes in the middle.

4. The electrical control box according to claim 1, characterized in that, The first electrical component is a terminal block; and / or Two first electrical components are provided, and the two first electrical components are spaced apart along a first direction; and / or The first circuit module is a power supply board.

5. The electrical control box according to any one of claims 1 to 4, characterized in that, The electrical control box further includes a second circuit module and a third circuit module. The second circuit module and the third circuit module are both fixedly connected to the mounting base and are spaced apart above the first circuit module along a first direction. A second mounting bracket is provided between the second circuit module and the third circuit module, and a second electrical component and a third electrical component are provided on the second mounting bracket.

6. The electrical control box according to claim 5, characterized in that, The second mounting bracket includes a second mounting plate, a second transition plate, and a second fixing plate. The two sides of the second mounting plate along the second direction are bent and connected to a second transition plate. The side of each second transition plate away from the second mounting plate is bent and connected to a second fixing plate. The two second fixing plates are fixedly connected to the mounting base. The second electrical component and the third electrical component are fixedly connected to the second mounting plate.

7. The electrical control box according to claim 5, characterized in that, The second electrical component is a leakage current protection switch, and the third electrical component is an AC contactor. A guide rail is fixedly connected to the second mounting bracket, the leakage current protection switch is mounted on the guide rail, the leakage current protection switch is connected to the AC contactor, and the AC contactor is connected to the third circuit module.

8. The electrical control box according to claim 7, characterized in that, The second circuit module is a driver board, and the third circuit module is a computer board, which is connected to the driver board.

9. The electrical control box according to claim 8, characterized in that, The computer board has an active interface and a passive interface, and the AC contactor is connected to the passive interface.

10. A heat pump device, characterized in that, The heat pump equipment includes the electrical control box as described in any one of claims 1 to 9.

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