Functional isolation type electric control box and heat pump water machine

Abstract

This utility model provides a functionally isolated electrical control box and a heat pump water heater, relating to the field of electrical control boxes. The electrical control box includes a box body and a terminal bracket disposed within the box body. The terminal bracket divides the space within the box body into an electronic component area and a wiring area. The electronic component area houses a control board, and the terminal bracket has a terminal board on the side facing away from the electronic component area. The open cover of the electronic component area has a first cover, and the open cover of the wiring area has a second cover. This electrical control box, with its terminal bracket for mounting the terminal board and its partitioning of the internal space, physically isolates the control board and wiring terminals, thus fundamentally preventing accidental damage to the control board during installation and maintenance. Correspondingly, it eliminates the risk of electric shock and short circuits for operators, significantly improving the safety and convenience of operation for staff and users, and optimizing the after-sales maintenance experience.

Description

Technical Field

[0001] This utility model relates to the technical field of electrical control boxes, and more specifically, to a functionally isolated electrical control box and a heat pump water heater. Background Technology

[0002] In existing technologies, the actual installation requirements for heat pump water heater modules are mostly floor-mounted with top-mounted piping. To facilitate after-sales maintenance, a unified electrical control scheme is usually adopted for centralized control, reducing operational complexity. This requires connecting the module to the control board inside the electrical control box via wiring, thus necessitating consideration of wiring and cabling issues during the production and design of the heat pump water heater module.

[0003] In existing heat pump water heater modules, the electrical control box is often located inside the panel on one side, connected to the top cover or side panel. This means the wiring typically runs from the internal piping side, extending through cable grommets to the control box, then through cable trays, cable ties, etc., before being plugged into the corresponding ports. This conventional wiring method inevitably leads to contact with electronic components such as the control board during after-sales customer wiring. Because the control board is fragile, accidental contact during installation or maintenance can damage the control board terminals, causing equipment malfunctions and potentially even electric shock or short circuits. Utility Model Content

[0004] The first objective of this utility model is to provide a functionally isolated electrical control box to solve the technical problem in the prior art where the control board is easily damaged due to accidental contact during the installation or maintenance of wiring terminals.

[0005] The present invention provides a functional isolation electrical control box, including a box body and a terminal bracket disposed in the box body. The terminal bracket divides the space inside the box body into an electronic component area and a wiring area. The electronic component area is provided with a control board, and the terminal bracket is provided with a terminal board on the side opposite to the electronic component area. The open cover of the electronic component area is provided with a first box cover, and the open cover of the wiring area is provided with a second box cover.

[0006] The functionally isolated electrical control box provided by this utility model can produce the following beneficial effects:

[0007] The functional isolation electrical control box provided by this utility model not only allows for the installation of terminal blocks but also divides the internal space of the box into two independent spaces: an electronic component area and a wiring area. Each space has its own independent cover. This allows for the installation of components in the electronic component area first, followed by the first cover, and then the installation of components in the wiring area, followed by the second cover. This effectively prevents accidental contact with the control board in the electronic component area when installing the terminal blocks or wiring. When maintenance is required on the components in the wiring area, only the second cover needs to be opened, without opening the first cover. This effectively prevents accidental contact with the control board during maintenance and thus prevents damage to the control board.

[0008] In other words, the functional isolation electrical control box provided by this utility model, through the terminal bracket, makes the control board and the wiring terminals belong to different functional areas in space and achieves physical isolation. This can fundamentally avoid the situation where the control board is damaged due to accidental contact when installing and maintaining the wiring terminals. Correspondingly, it also eliminates the risk and safety hazards of electric shock to operators and short circuits, significantly improves the safety and convenience of operation for staff and users, and optimizes the after-sales maintenance experience.

[0009] Furthermore, the wiring area is located at the top, and the electronic component area is located at the bottom. In this arrangement, the wiring area containing the terminals is located at the top, which is not too low, thus facilitating operation.

[0010] Furthermore, the terminal bracket is inclined, with its upper end resting against the bottom wall of the housing and its lower end resting against the side wall of the housing. In this configuration, the side of the terminal bracket that mounts the terminal plate faces the opening of the wiring area, thus facilitating operator access.

[0011] Furthermore, the terminal bracket has a hook at its upper end and a first hanging hole on the bottom wall of the box, with the hook hooked in the first hanging hole; the terminal bracket has an overlapping edge at its lower end and a support portion on the side wall of the box, with the overlapping edge overlapping the support portion. When installing the terminal bracket, simply hook the hook at the upper end of the terminal bracket into the corresponding first hanging hole, and then overlap the overlapping edge of the terminal bracket onto the support portion of the box; it is very simple and quick.

[0012] Furthermore, a wiring port is provided at the corner of the terminal bracket, through which the power lines of the electronic component area enter the wiring area.

[0013] Furthermore, the corner of the terminal bracket near the bottom wall of the housing is bent to form a folded edge, which, together with the inner wall of the housing, encloses the wiring opening. This configuration simplifies the bending process and effectively avoids burrs around the wiring opening, thus preventing damage to the passing wiring.

[0014] Furthermore, the bottom wall of the box is provided with a wiring channel in the portion of the wiring area, through which wiring located outside the electrical control box enters the wiring area.

[0015] Furthermore, a limiting groove is provided on the bottom outer side of the box body, and the bottom of the first box cover is inserted into the limiting groove; the top of the first box cover is fixedly connected to the box body. When installing the first box cover, first insert its bottom into the limiting groove of the box body, and then fix its top to the box body.

[0016] Furthermore, the top edge of the first lid is provided with an outwardly extending first positioning flange, and the bottom edge of the second lid is provided with an outwardly extending second positioning flange, the second positioning flange cooperating with the first positioning flange; all four corners of the second lid are fixedly connected to the box body. With this configuration, once the first lid is installed, it can position and support the second lid, thereby improving the efficiency of installing the second lid.

[0017] The second objective of this utility model is to provide a heat pump water machine to solve the technical problem in the prior art where the control board is easily damaged due to accidental contact with the wiring terminals during installation or maintenance.

[0018] The heat pump water heater provided by this utility model includes a housing and the aforementioned functionally isolated electrical control box. The electrical control box is disposed inside the housing, behind the front panel of the housing, with the first cover and the second cover facing the front panel. With this configuration, when maintenance of the wiring terminals is required, only the front panel of the housing and the second cover of the electrical control box need to be opened, which is very convenient.

[0019] Furthermore, one side of the box is rotatably mounted to one side panel of the housing via a hinge, and the other side of the box is fixedly connected to another side panel of the housing. With this configuration, when maintenance is required on the components behind the control box, it is only necessary to disconnect the fixed connection between the control box and the housing and rotate the control box to expose the components behind it, without having to remove the control box itself, which is very convenient.

[0020] Furthermore, the top cover of the enclosure is provided with hanging ears; the top of the enclosure is also provided with a hook, the hook having a second hanging hole; the top of the second enclosure is also provided with a hooking flange, the hooking flange having a third hanging hole; the enclosure and the second enclosure cover are respectively hooked to the hanging ears through the second hanging hole and the third hanging hole. When installing the electrical control box into the enclosure, the electrical control box can be first hung on the top cover of the enclosure through the second hanging hole and the third hanging hole, and then the hinges and fixing connecting ears can be installed, which is very convenient. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A partially exploded view of the heat pump water heater provided in an embodiment of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a schematic diagram of the main structure of the functionally isolated electrical control box provided in an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of the main structure of the functional isolation electrical control box after removing the second cover, as provided in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the main structure of the functional isolation electrical control box after removing the first cover, as provided in an embodiment of the present utility model.

[0027] Figure 6 This is a schematic diagram of the structure of the functional isolation electrical control box after removing the two covers, as provided in an embodiment of the present utility model.

[0028] Figure 7 A partial cross-sectional view of the functionally isolated electrical control box provided in this embodiment of the utility model;

[0029] Figure 8 A front structural schematic diagram of the terminal bracket of the functional isolation electrical control box provided in this embodiment of the utility model;

[0030] Figure 9 A schematic diagram of the back structure of the terminal bracket of the functional isolation electrical control box provided in this embodiment of the utility model;

[0031] Figure 10 A rear view structural schematic diagram of the functionally isolated electrical control box provided in an embodiment of this utility model;

[0032] Figure 11 A front view of the first cover of the functional isolation electrical control box provided in this embodiment of the utility model;

[0033] Figure 12 A schematic diagram of the back structure of the first cover of the functional isolation electrical control box provided in this embodiment of the utility model;

[0034] Figure 13 A front view of the second cover of the functional isolation electrical control box provided in this embodiment of the utility model;

[0035] Figure 14 A schematic diagram of the back structure of the second cover of the functional isolation electrical control box provided in this embodiment of the utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100 - Cabinet; 110 - Front panel; 120 - Top cover; 121 - Mounting lug; 130 - Left side panel; 140 - Right side panel;

[0038] 200 - Electrical control box; 201 - Electronic components area; 202 - Wiring area; 203 - Hinges; 204 - Connecting ears;

[0039] 210 - Box body; 211 - First hanging hole; 212 - Support part; 213 - Limiting groove; 216 - Third fixing ear; 217 - Fourth fixing ear; 218 - Hanging piece; 219 - Second hanging hole;

[0040] 220 - Terminal bracket; 221 - Cable routing port; 222 - Folded edge; 223 - Hook; 224 - Overlapping edge;

[0041] 230 - First box lid; 231 - First positioning flange; 232 - First wrapping flange; 233 - First clearance notch;

[0042] 240 - Second lid; 241 - Second positioning flange; 242 - Second covering flange; 243 - Second clearance notch; 244 - Hook flange; 245 - First flange; 246 - Second flange; 247 - Third flange; 248 - Third hanging hole;

[0043] 250 - Control board; 251 - Main control board; 252 - Expansion board;

[0044] 260 - Power Transformer;

[0045] 270 - Terminal block; 271 - Power terminal block; 272 - Customer-required terminal block;

[0046] 280 - Wiring channel; 281 - Internal component wiring port of heat pump water heater; 282 - Power port; 283 - Customer connection port. Detailed Implementation

[0047] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0048] This embodiment provides a functionally isolated electrical control box, such as Figures 2 to 6 As shown, the electrical control box 200 includes a box body 210 and a terminal bracket 220 disposed inside the box body 210. The terminal bracket 220 divides the space inside the box body 210 into an electronic component area 201 and a wiring area 202. The electronic component area 201 is provided with a control board 250, and a terminal board 270 is provided on the side of the terminal bracket 220 away from the electronic component area 201. The open cover of the electronic component area 201 is provided with a first box cover 230, and the open cover of the wiring area 202 is provided with a second box cover 240.

[0049] Specifically, in this embodiment, as Figure 6 and Figure 7 As shown, the number of control boards 250 is not limited to one, but includes a main control board 251 and an expansion board 252. Of course, in other embodiments of this application, more control boards 250 can be provided as needed. In addition to the control boards 250, in this embodiment, the electronic component area 201 is also provided with a power transformer 260. As for the terminal board 270, in this embodiment, the terminal board 270 includes a power terminal board 271 and a customer-required terminal board 272. Of course, the type and specific number of terminal boards 270 can be set as needed, and this application does not impose specific limitations on this.

[0050] The functional isolation control box 200 provided in this embodiment not only has a terminal bracket 220 for mounting the terminal board 270, but also divides the space inside the box 210 into two independent spaces: the electronic component area 201 and the wiring area 202. Each space has an independent cover, so that during installation, the components in the electronic component area 201 can be installed first and the first cover 230 can be closed, and then the components in the wiring area 202 can be installed and the second cover 240 can be closed. This effectively avoids the terminal board 270 where the wiring terminals are located and the control board 250 in the electronic component area 201 being accidentally touched during wiring. When it is necessary to maintain the components in the wiring area 202, only the second cover 240 can be opened without opening the first cover 230, which effectively avoids the control board 250 being accidentally touched during maintenance and thus effectively avoids the possibility of damage to the control board 250 during maintenance.

[0051] That is, the functional isolation electrical control box 200 provided in this embodiment, through the terminal bracket 220, makes the control board 250 and the wiring terminals belong to different functional areas in space and achieves physical isolation. This can fundamentally avoid the situation where the control board 250 is accidentally touched and damaged when installing and maintaining the wiring terminals. Correspondingly, it also eliminates the risk and safety hazards of electric shock to the operator and short circuits, significantly improves the safety and convenience of operation for staff and users, and optimizes the after-sales maintenance experience.

[0052] In this embodiment, the height of the electrical control box 200 is significantly greater than its width, and it is vertically oriented with the wiring area 202 at the top and the electronic component area 201 at the bottom. This arrangement ensures that the wiring area 202, containing the terminals, is positioned at the top, avoiding a low position and facilitating operation. Furthermore, before leaving the factory, the manufacturer can pre-connect all terminals of the control board 250 at the bottom of the electrical control box 200 to the power transformer 260. Users only need to connect the upper power terminals before use; that is, when performing wiring operations in a home environment, users only need to open the second cover 240 of the electrical control box 200 to complete the operation.

[0053] It should be noted that in other embodiments of this application, the layout of the wiring area 202 and the electronic component area 201 is not limited to vertical distribution. For example, if the width of the box 210 is significantly greater than its height and the whole is in a horizontal position, the electronic component area 201 can also be located on the left side of the box 210, while the wiring area 202 is located on the right side of the box 210.

[0054] Specifically, in this embodiment, as Figure 4 and Figure 6As shown, the terminal bracket 220 is inclined, with its upper end hanging against the bottom wall of the housing 210 and its lower end resting against the side wall of the housing 210. In this configuration, the side of the terminal bracket 220 that mounts the terminal plate 270 faces the opening of the wiring area 202, thus facilitating operation by the operator.

[0055] In this embodiment, as Figure 9 and Figure 10 As shown, and in combination Figure 6 As shown, the terminal bracket 220 has a hook 223 at its upper end, and the bottom wall of the housing 210 has a first hanging hole 211, with the hook 223 hooked in the first hanging hole 211. The terminal bracket 220 has an overlapping edge 224 at its lower end, and the side wall of the housing 210 has a support portion 212, with the overlapping edge 224 overlapping the support portion 212. When installing the terminal bracket 220, simply hook the hook 223 at the upper end of the terminal bracket 220 into the corresponding first hanging hole 211, and then overlap the overlapping edge 224 of the terminal bracket 220 onto the support portion 212 of the housing 210; this is very simple and quick. Of course, in other embodiments of this application, the upper end of the terminal bracket 220 can also be directly fixed to the bottom wall of the housing 210 using screws or other fasteners.

[0056] In this embodiment, as Figure 7 As shown, a wiring port 221 is provided at the corner of the terminal bracket 220, and the power line of the electronic component area 201 enters the wiring area 202 through the wiring port 221.

[0057] Specifically, in this embodiment, combined with Figures 7 to 9 As shown, the corner of the terminal bracket 220 near the bottom wall of the housing 210 is bent to form a folded edge 222, which, together with the inner wall of the housing 210, forms a wiring opening 221. This configuration simplifies the bending process and effectively avoids burrs around the wiring opening 221, thus preventing damage to the passing wiring. Of course, in other embodiments of this application, the wiring opening 221 can also be provided on the terminal bracket 220 by drilling or other methods.

[0058] More specifically, in this embodiment, the terminal bracket 220 is provided with wiring ports 221 at both corners of the bottom wall near the housing 210, so that a suitable wiring port 221 can be selected nearby when wiring.

[0059] In this embodiment, as Figure 10As shown, in addition to the terminal block 270, the bottom wall of the housing 210 located in the wiring area 202 also has a wiring channel 280. Wiring lines outside the electrical control box 200 enter the wiring area 202 through the wiring channel 280. Preferably, the wiring channel 280 is equipped with a wiring rubber ring to restrict and protect the passing wiring. For a heat pump water heater, the wiring channel 280 may include internal component wiring ports 281, power ports 282, and customer connection ports 283, etc. The internal components of the heat pump water heater may include an electric heater, a current switch, a water pump, and a temperature sensor, etc.

[0060] In this embodiment, as Figure 6 As shown, a limiting groove 213 is provided on the bottom outer side of the box body 210, and the bottom of the first box cover 230 is inserted into the limiting groove 213; the top of the first box cover 230 is fixedly connected to the box body 210. When installing the first box cover 230, first insert its bottom into the limiting groove 213 of the box body 210, and then fix its top to the box body 210.

[0061] Specifically, in this embodiment, the support portion 212 includes a first fixing ear and a second fixing ear, which are respectively disposed on two sides of the housing 210 and extend toward each other; the top of the first cover 230 is located outside the overlapping edge 224, and the first cover 230 and the support portion 212 clamp the overlapping edge 224 between them. With this configuration, when the second cover 240 is removed, the terminal bracket 220 can still be reliably fixed to the housing 210.

[0062] More specifically, in this embodiment, the first cover 230, the overlapping edge 224 and the support part 212 are provided with corresponding holes. Screws pass through the holes on the first cover 230 and the overlapping edge 224 in sequence and are fixed to the holes on the support part 212, thereby fixing the three together.

[0063] In this embodiment, as Figures 11 to 14 As shown, the top edge of the first cover 230 is provided with an outwardly extending first positioning flange 231, and the bottom edge of the second cover 240 is provided with an outwardly extending second positioning flange 241. The second positioning flange 241 cooperates with the first positioning flange 231. With this configuration, when the first cover 230 is installed in place, it can provide positioning and support for the second cover 240, thereby improving the efficiency of installing the second cover 240.

[0064] In this embodiment, all four corners of the second cover 240 are fixedly connected to the box body 210. The bottom of the second cover 240 is fixedly connected to the support 212, and the overlapping edge 224 of the terminal bracket 220 is clamped between the two. The top of the second cover 240 is fixedly connected to the third fixing ear 216 and the fourth fixing ear 217 disposed on the two sides of the box body 210. The third fixing ear 216 and the fourth fixing ear 217 are respectively disposed on the two sides of the box body 210 and extend towards each other.

[0065] In this embodiment, as Figure 11 and Figure 12 As shown, the first cover 230 has rearwardly extending first covering flanges 232 on its left and right sides. When the first cover 230 is installed, the first covering flanges 232 on both sides of the first cover 230 cover the two sides of the box body 210 respectively. This arrangement can improve the sealing of the electronic component area 201, effectively prevent flying insects, dust and water from entering the electronic component area 201, and facilitate the positioning of the first cover 230 and the box body 210.

[0066] like Figure 13 and Figure 14 As shown, the second cover 240 has rearwardly extending second covering flanges 242 on its left and right sides. When the second cover 240 is installed, the second covering flanges 242 on both sides of the second cover 240 cover the two sides of the box body 210 respectively. This arrangement can improve the sealing of the wiring area 202, effectively prevent flying insects, dust and water from entering the wiring area 202, and facilitate the positioning of the second cover 240 and the box body 210.

[0067] like Figures 11 to 14 As shown, regarding the first covering flange 232 and the second covering flange 242, since the electrical control box 200 is mounted on the heat pump water machine housing 100 via a hinge 203 in this embodiment, the first covering flange 232 on the side of the first cover 230 corresponding to the hinge 203 is provided with a first clearance notch 233, and the second covering flange 242 on the side of the second cover 240 corresponding to the hinge 203 is provided with a second clearance notch 243, respectively used to avoid the corresponding hinge 203 and prevent interference with the corresponding hinge 203.

[0068] This embodiment also provides a heat pump water machine, such as Figure 1 and Figure 3As shown, the heat pump water heater includes a housing 100 and the aforementioned functionally isolated electrical control box 200. The electrical control box 200 is located inside the housing 100, behind the front panel 110 of the housing 100, with the first cover 230 and the second cover 240 facing the front panel 110. With this configuration, when maintenance of the wiring terminals is required, it is only necessary to open the front panel 110 of the housing 100 and the second cover 240 of the electrical control box 200, which is very convenient.

[0069] Specifically, in this embodiment, one side of the box 210 is rotatably mounted to one side plate of the housing 100 via a hinge 203, and the other side of the box 210 is fixedly connected to another side plate of the housing 100. With this configuration, when maintenance is required on the components behind the control box 200, it is only necessary to disconnect the fixed connection between the control box 200 and the housing 100 and rotate the control box 200 to expose the components behind it, without having to remove the control box 200, which is very convenient.

[0070] More specifically, in this embodiment, as Figure 3 As shown, the left side of the box body 210 is rotatably connected to the left side plate 130 of the box body 100 by three hinges 203 arranged vertically. The right side of the box body 210 is provided with two connecting ears 204 extending to the right, and two screws fix the two connecting ears 204 to the right side plate 140 of the box body 100 respectively.

[0071] In this embodiment, combined with Figure 1 , Figure 2 as well as Figure 6 and Figure 14 As shown, the top cover plate 120 of the enclosure 100 is provided with a hanging ear 121; the top of the box body 210 is also provided with a hanging member 218, which has a second hanging hole 219; the top of the second box cover 240 is also provided with a hanging flange 244, which has a third hanging hole 248; the box body 210 and the second box cover 240 are respectively hung on the hanging ear 121 through the second hanging hole 219 and the third hanging hole 248. When installing the electrical control box 200 into the enclosure 100, the electrical control box 200 can be hung on the top cover plate 120 of the enclosure 100 through the second hanging hole 219 and the third hanging hole 248 first, and then the hinge 203 and the fixing connecting ear 204 can be installed, which is very convenient.

[0072] Specifically, in this embodiment, as Figure 13 and Figure 14As shown, the hook flange 244 includes a first flange 245, a second flange 246 and a third flange 247 arranged in sequence. The top edge of the second cover 240 first extends backward to form the first flange 245, then extends upward to form the second flange 246, and finally extends outward (forward) to form the third flange 247. The third hook hole 248 is opened on the second flange 246. The outward extension of the third flange 247 facilitates the removal of the second cover 240 by removing it outward (forward).

[0073] When installing the functional isolation electrical control box provided in this embodiment into the housing 100 of the heat pump water machine provided in this embodiment, the housing 210 can first be hung on the hanging ears 121 on the top cover plate 120 of the housing 100 through the second hanging hole 219, and then the hinge 203 and the fixing connecting ear 204 can be installed; then the terminal bracket 220, the first cover 230 and the second cover 240 can be installed: the hook 223 of the terminal bracket 220 can be hung into the first hanging hole 211 on the bottom wall of the housing 210, so that the terminal bracket 220 is fixed in place. The overlapping edge 224 of the bracket 220 rests on the support portion 212 of the box body 210; then the first box cover 230 is fixed to the support portion 212 through the limiting groove 213 at the bottom of the box body 210 and the top screw, while the overlapping edge 224 of the terminal bracket 220 is clamped between the first box cover 230 and the support portion 212; finally, the second box cover 240 is hung on the hanging ear 121 of the top cover plate 120 through the third hanging hole 248, and the second box cover 240 is fixed to the box body 210 with screws. Of course, the electrical control box 200 can also be assembled as a whole and then installed as a whole into the enclosure 100. This application does not impose specific restrictions on this.

[0074] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0075] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A functionally isolated electrical control box, characterized in that, The device includes a housing (210) and a terminal bracket (220) disposed within the housing (210). The terminal bracket (220) divides the space within the housing (210) into an electronic component area (201) and a wiring area (202). The electronic component area (201) is provided with a control board (250). A terminal board (270) is provided on the side of the terminal bracket (220) away from the electronic component area (201). The open cover of the electronic component area (201) is provided with a first cover (230), and the open cover of the wiring area (202) is provided with a second cover (240).

2. The functionally isolated electrical control box according to claim 1, characterized in that, The wiring area (202) is located above, and the electronic component area (201) is located below; The terminal bracket (220) is inclined, with its upper end hanging against the bottom wall of the box (210) and its lower end resting against the side wall of the box (210).

3. The functionally isolated electrical control box according to claim 2, characterized in that, The terminal bracket (220) is provided with a hook (223) at its upper end, and the bottom wall of the box (210) is provided with a first hanging hole (211), and the hook (223) is hung in the first hanging hole (211). The lower end of the terminal bracket (220) is provided with an overlapping edge (224), and the side wall of the box (210) is provided with a support part (212), and the overlapping edge (224) overlaps the support part (212).

4. The functionally isolated electrical control box according to claim 2, characterized in that, The terminal bracket (220) is provided with a wiring port (221) at its corner, and the power line of the electronic component area (201) enters the wiring area (202) through the wiring port (221).

5. The functionally isolated electrical control box according to claim 4, characterized in that, The terminal bracket (220) is bent at the corner of the bottom wall near the box (210) to form a folded edge (222), and the folded edge (222) and the inner wall of the box (210) surround the wiring opening (221).

6. The functionally isolated electrical control box according to any one of claims 1-5, characterized in that, The bottom wall of the box (210) located in the wiring area (202) is provided with a wire passage (280), through which the wires located outside the electrical control box (200) enter the wiring area (202).

7. The functionally isolated electrical control box according to any one of claims 2-5, characterized in that, The bottom outer side of the box body (210) is provided with a limiting groove (213), and the bottom of the first box cover (230) is inserted into the limiting groove (213); The top of the first lid (230) is fixedly connected to the box body (210).

8. The functionally isolated electrical control box according to claim 7, characterized in that, The top edge of the first box cover (230) is provided with an outwardly extending first positioning flange (231), and the bottom edge of the second box cover (240) is provided with an outwardly extending second positioning flange (241), the second positioning flange (241) cooperating with the first positioning flange (231). The four corners of the second lid (240) are fixedly connected to the box body (210).

9. A heat pump water heater, characterized in that, Includes a housing (100) and a functionally isolated electrical control box as described in any one of claims 1-8, wherein the electrical control box (200) is disposed inside the housing (100) and located behind the front panel (110) of the housing (100), and the first cover (230) and the second cover (240) face the front panel (110).

10. The heat pump water heater according to claim 9, characterized in that, The top cover plate (120) of the box body (100) is provided with a hanging ear (121); the top of the box body (210) is also provided with a hanging member (218), and the hanging member (218) has a second hanging hole (219). The top of the second box cover (240) is also provided with a hanging flange (244), and the hanging flange (244) is provided with a third hanging hole (248); The box body (210) and the second box cover (240) are respectively attached to the hanging ear (121) through the second hanging hole (219) and the third hanging hole (248).

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