WO2020228748A1 - Power supply cabinet - Google Patents

Abstract

A power supply cabinet, comprising a base (50) and a plurality of modules vertically stacked on the base (50) and sequentially electrically connected to each other, each of the modules comprising a case (100) and at least one of an electronic component provided in the case (100), and a battery module (40). The case (100) comprises a case body (11). An inner wall of the case body (11) of at least one case (100) has a mounting structure where at least one of the electronic component and the battery module (40) is mounted. A bottom wall of the case body (11) is provided with a mounting port (111). The case (100) further comprises a cover body (12) covered on the mounting port (111).

Description

Power supply cabinet

Cross references to related applications

This application claims the priority of the Chinese patent application number "201920694910.2" filed by BYD Co., Ltd. on May 13, 2019 with the application name "Power Cabinet".

Technical field

This application relates to a power cabinet.

Background technique

The power cabinet, as a back-up power system or power recovery system, is widely used in many power-consuming fields. In recent years, as an application scenario, cabinet-type home energy storage devices have been widely used in home life. The power cabinet generally includes a battery management module and multiple battery modules. Water in the power cabinet will damage the battery modules, or circuit boards, connectors and other electronic components, so the power cabinet usually has waterproof requirements. The power cabinet is generally provided with a box, and the opening is sealed with a cover after the electronic components are installed in the box to prevent water from entering.

The sealing method in the related art has a complicated structure and high processing cost. Moreover, after partial or complete failure of the sealing structure, water will enter the box, causing serious problems such as failure of the battery modules and connectors in the box and short circuit of the circuit board.

Application content

This application aims to solve one of the technical problems in the related technology at least to a certain extent.

For this reason, one purpose of the present application is to propose a power cabinet which has good waterproofness.

The power supply cabinet according to the embodiment of the present application includes a base and a plurality of modules stacked on the base in an up-down direction and electrically connected in sequence, each module includes a box body and electronic components and batteries installed in the box body At least one of the modules, the box body of the at least one module includes a box body for accommodating electronic components, and the inner wall of the box body has an inner wall for installing the electronic components and the battery module (40) At least one installation structure, the bottom wall of the box body is provided with an installation opening, and the box body further includes a cover body covering the installation opening.

According to the power cabinet of the embodiment of the present application, when the power cabinet encounters rainwater and other water flow, the water flow will flow down along the outer wall of the box body under the action of gravity. Because the installation port of the box body is opened on the bottom wall, that is, the box body faces The lower opening can first ensure the tightness of the upper area of the box and realize the first level of waterproofing of the box. Moreover, even if the seal between the installation port and the cover fails, such as the aging of the seal, the water that flows down from the outer wall of the box body cannot directly enter the box body from the installation port on the bottom wall up, but will be discharged along the original path. So as to achieve the second level of waterproof to the box. Therefore, the power cabinet adopting the above-mentioned box has good waterproof performance.

In addition, the power cabinet according to the foregoing embodiment of the present application may also have the following additional technical features:

According to an example of the present application, the bottom wall has an upward recessed portion, and the installation port is provided on the recessed portion.

According to an example of the present application, a first sealing member is provided between the cover and the bottom wall, and the first sealing member is provided around the installation opening.

According to an example of the present application, a first sealing member is provided between the cover and the recess.

According to an example of the present application, the bottom wall is provided with a plurality of first connecting holes around the mounting opening, the cover body is provided with a plurality of second connecting holes corresponding to each other, and the first fastener passes through The second connecting hole is matched with the first connecting hole.

According to an example of the present application, the recess is provided with a plurality of first connection holes arranged around the mounting opening, the cover body is provided with a plurality of second connection holes, and a plurality of the first connection holes The holes are in one-to-one correspondence with the plurality of second connecting holes, and the first fastener passes through the first connecting holes and is matched with the corresponding second connecting holes.

According to an example of the present application, the installation structure includes at least one of a fixed post for suspending a circuit board, a suspension bracket for fixing an air switch, and a load beam for suspending a battery module.

According to an example of the present application, the recessed portion is an annular recessed platform having an L-shaped cross section in the height direction and including a recessed platform side wall and a recessed platform top wall, the recessed platform side wall extending upward, The top wall of the concave platform surrounds the installation opening.

According to an example of the present application, the recessed portion includes: a recessed platform side wall, the recessed platform side wall is disposed on the bottom wall and extends toward the inside of the box; a recessed platform top wall, the recessed platform The top wall is arranged at the free end of the side wall of the concave platform and is directly opposite to the cover, and the installation opening is arranged on the top wall of the concave platform.

According to an example of the present application, the adjacent boxes are fixedly connected by a plurality of locking and positioning devices arranged at intervals.

According to an example of the present application, the locking and positioning device includes a positioning column, a positioning groove, a second fastener and a sealing cap, the positioning column is provided in one of the adjacent boxes, and the positioning groove is provided in The other one of the adjacent boxes, and the positioning groove has a mounting plate fixedly connected to the box body, and the mounting plate separates the positioning groove into a positioning cavity and an installation cavity, the positioning cavity Along the axial direction of the positioning column, the positioning column is opened toward the adjacent box body for insertion of the positioning column, the mounting cavity is opened toward the outside of the box, and a locking hole extending in the radial direction is formed on the positioning column The second fastener passes through the installation plate from the installation cavity and is connected with the locking hole, and the sealing cap is detachably closed on the opening of the installation cavity.

According to an example of the present application, the locking and positioning device includes a positioning column, a positioning groove, a second fastener and a sealing cap, and the positioning column is provided in one of two adjacent boxes, so The positioning groove is provided in the other of the two adjacent box bodies, and the positioning groove is provided with a mounting plate fixedly connected to the box bodies provided with the positioning grooves in the two adjacent boxes The mounting plate separates the positioning groove into a positioning cavity and an installation cavity, the positioning cavity is in plug-in fit with the positioning post, the installation cavity has an opening facing the outside, and the positioning post is formed with an edge The radially extending locking hole of the positioning column, the second fastener passes through the mounting plate from the installation cavity and is matched with the locking hole, and the sealing cap is detachably closed in the On the opening of the mounting cavity.

According to an example of the present application, the positioning column includes a matching section and a fixing section, and the fixing section is sealed through the wall of the box body so that the matching section is inserted into the positioning groove.

According to an example of the present application, the fixed section and the mating section are in a stepped structure, a second seal is provided between the stepped surface of the stepped structure and the outer wall of the corresponding box, and the fixed section has a threaded parallel It is fastened on the wall of the box body by a nut member matched with it.

According to an example of the present application, the cross-sectional area of the fixed section is smaller than the cross-sectional area of the mating section to form a stepped surface at the junction of the fixed section and the mating section, and the stepped surface is connected to the two adjacent ones. A second sealing element is arranged between the box bodies where the positioning column is arranged in the box body, and an installation groove for installing the second sealing element is arranged on the step surface.

According to an example of the present application, the top wall of the box body of the module located in the middle of the plurality of modules is provided with the positioning column, and the bottom wall is provided with the positioning slot with the mounting plate.

According to an example of the present application, the adjacent modules are electrically connected by hot-swappable components. The hot-swappable components include mating hot-swappable male ends and hot-swappable female ends. The male end (31) is provided at one of the bottom of the module on the upper side or the top of the module on the lower side, and the hot-swappable female end (32) is provided on the bottom of the module on the upper side or the top of the module on the lower side The other one.

According to an example of the present application, the adjacent modules are electrically connected by hot-swappable components. The hot-swappable components include mating hot-swappable male ends and hot-swappable female ends. The male end is arranged on one of the two adjacent modules, and the hot-swappable female end is arranged on the other of the two adjacent modules.

According to an example of the present application, the lower one of the adjacent modules has a protruding first waterproof seat, the upper one has a concave second waterproof seat, the hot plug male end and One of the hot-swappable female ends is set in the first waterproof seat, the other is set in the second waterproof seat, and the first waterproof seat is inserted into the second waterproof seat so that the Hot-swappable components are electrically connected.

According to an example of this application, one of the two adjacent modules is provided with a first waterproof seat, and the other of the two adjacent modules is provided with a first waterproof seat. In the second waterproof seat, one of the hot-plug male end and the hot-plug female end is arranged in the first waterproof seat, and one of the hot-plug male end and the hot-plug female end The other is arranged in the second waterproof seat.

According to an example of the present application, the first waterproof seat and the second waterproof seat respectively have non-circular outer contours with matching shapes.

According to an example of the present application, the module includes a battery module, the battery module is provided in the battery module, and the mounting structure includes a load-bearing beam that suspends the battery module.

According to an example of the present application, the bottom of the load-bearing beam has a first fastening hole, the battery module includes a hanging ear with a second fastening hole, and the third fastener passes through the first fastening hole from bottom to top. The two fastening holes are matched with the first fastening hole.

According to an example of the present application, the two load-bearing beams are arranged in parallel, so that the battery module is clamped between the two load-bearing beams.

According to an example of the present application, the module includes a battery management module, an air switch and a circuit board are arranged in the battery management module, and the mounting structure includes a suspension bracket for fixing the air switch and a multiplier for fixing the circuit board. A fixed column.

According to an example of the present application, the suspension bracket has an L-shaped structure and includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the top wall of the box, and the second connecting plate is connected to The air switch is connected, and a plurality of the fixed uprights arranged at intervals are connected between the circuit board and the top wall of the box body.

According to an example of the present application, the plurality of modules include a battery management module located at the top and at least one battery module located below the battery management module, the battery management module is provided with electronic components, and the battery module A battery module is provided.

According to an example of the present application, the base is located below the battery module and includes the box body and a ground wire located in the box body, and the ground wire is electrically connected to the battery module.

According to an example of the present application, the power cabinet is a household energy storage device.

The additional aspects and advantages of the present application will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present application.

Description of the drawings

FIG. 1 is a schematic structural decomposition diagram of a battery management module according to an embodiment of the present application;

FIG. 2 is a schematic structural exploded view of a battery module according to an embodiment of the present application;

3 is a cross-sectional view along the length of the battery module according to an embodiment of the present application;

FIG. 4 is a structural exploded schematic diagram of a power cabinet according to an embodiment of the present application;

Figure 5 is a schematic cross-sectional view of the power cabinet along line A-A in Figure 4;

Fig. 6 is a partial enlarged schematic diagram of I in Fig. 5;

Fig. 7 is a partial enlarged schematic diagram of the position II in Fig. 5.

Description of reference signs

100-Box body; 11-Box body; 111-Mounting port; 112-Concavity; 1121-Concave side wall; 1122-Concave top wall; 113-First connecting hole; 12-Cover body; 121-Second Connecting hole; 13-First seal; 14-First fastener; 20-Lock positioning device; 21-Locating post; 211-Mating section; 212-Fixed section; 213-Locking hole; 22-Locating groove 221-Positioning cavity; 222-Installation cavity; 23-Second fastener; 24-Seal cap; 25-Mounting plate; 26-Second sealing element; 27-Nut piece; 31-Hot plug male end; 32 -Hot plug female end; 33-first waterproof seat; 34-second waterproof seat; 40-battery module; 41-hanging ear; 42-third fastener; 43-bearing beam; 50-base; 61 -Air switch; 611-air switch guard; 62-fixed column; 63-suspension bracket; 631-first connecting plate; 632-second connecting plate; 64-circuit board; 200-power cabinet; 201-battery module; 202-Battery management module; 2021-side end cover.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the application, but should not be understood as a limitation to the application.

According to one aspect of this application, a power cabinet is provided, as shown in Figures 1-4. Figures 1-3 show an exploded schematic view of the structure of the box body 100 equipped with electronic components. In order to clearly show the internal structure of the box body 100, only part of the wall of the box body 11 is shown.

As shown in FIG. 4, the power cabinet 200 includes a base 50 and a plurality of modules stacked on the base 50 in an up-down direction and electrically connected in sequence. Each module includes a box body 100 and at least one of electronic components and battery modules 40 installed in the box body 100. The box body 100 of at least one module includes a box body 11 for accommodating electronic components. The inner wall of the box body 11 has an installation structure for installing at least one of the electronic components and the battery module 40, and the bottom wall of the box body 11 is provided with an installation opening 111 so that the electronic components can be installed through the installation opening 111. In terms of the installation structure, the box body 100 further includes a cover body 12 covering the installation opening 111.

It should be noted that the "up and down direction" in this application refers to the stacking direction of multiple modules. Or as shown in FIG. 4, the up-down direction in the figure is the “up-down direction” described in this application. For example, the battery management module 202 is located on the upper side of the battery module 201, and the battery module 201 is located on the upper side of the base 50.

It should be noted that the electricity-related devices in the power cabinet 200 are divided into two types: battery modules and electronic components. The battery module includes at least one single battery. If there are multiple single batteries These single cells are arranged in sequence to form a battery module 40 for energy storage. Electronic components are used to realize the functions of other power cabinets, such as the control circuit board 64, the air switch 61 and so on. In addition, in the present application, the inner wall of the box body 11 includes a bottom wall and a top wall that are opposed to each other, and a side wall connected between the bottom wall and the top wall. The bottom of the box body 11 is a bottom wall, and the bottom is provided with an installation port 111, that is, the box body 11 of the power cabinet 200 provided in the present application is downwardly open.

In the present technical solution, in the assembly process, at least one of the electronic components and the battery module 40 can be assembled into the box 100 from the installation opening 111 at the bottom of the box 100, and then the installation opening is sealed by the cover 12 111. In the daily maintenance process, the installation port 111 can also be used for maintenance, and there is no restriction on the undisclosed other functions of the installation port 111.

In the above technical solution, when the power supply cabinet 200 encounters rainwater and other water flow, under the action of gravity, the water flow will flow down the outer wall of the box body 11, because the installation port 111 of the box body 100 is opened on the bottom wall, that is, the box body 11 is opened downwards, so the tightness of the upper area of the box 100 can be ensured first, and the first level of waterproof of the box 100 can be realized. Moreover, even if the seal between the installation port 111 and the cover body 12 fails, such as the ageing of the seal, the accumulated water flowing down from the outer wall of the box body 11 cannot directly enter the box body 11 from the installation port 111 on the bottom wall upward, and will It is discharged along the original road, so as to achieve the second level of waterproof to the box 100. Therefore, the power cabinet 200 adopting the above-mentioned box body 100 has good waterproofness.

The bottom wall of the box body 11 has a concave portion 112 recessed upward, and the concave portion 112 is provided with a mounting hole 111 so that the electronic components can be installed on the mounting structure through the mounting hole 111. The cover 12 is detachably covered with the installation opening 111. It should be noted that the depressed portion 112 referred to here not only includes an embodiment with a partially depressed recess on the bottom wall, but also includes an embodiment in which the entire bottom wall is recessed upward relative to the lower edge of the side wall of the box body 11.

When the bottom wall of the box body 11 encounters stagnant water, the bottom wall of the box body 11 has a concave portion 112 that is recessed upward, and the installation port 111 is provided on the concave portion 112, that is, the installation port 111 can be opposite to the bottom wall. The lowest position is suspended, so that the stagnant water cannot directly contact the installation opening 111, and will not directly threaten the seal between the installation opening 111 and the cover 12, thereby ensuring the sealing performance of the lower area of the box 100. Moreover, even if the seal between the installation port 111 and the cover body 12 fails, such as the aging of the seal, it can be further effectively avoided that the water flowing down from the outer wall of the box body 11 directly enters the box body from the installation port 111 on the bottom wall upwards Inside 11, the accumulated water will be discharged along the original road, thereby increasing the second-level waterproof effect of the box 100.

In addition, when a plurality of the boxes 100 are stacked, or when the box 100 and other boxes are stacked up and down, the upwardly recessed recess 112 can reduce contact surface corrosion caused by surface-to-surface contact. At the same time, when stacking with other boxes, even if the upper surface of the lower box has poor flatness, since the recess 112 is suspended relative to the upper surface of the lower box, the boxes can still be stacked smoothly.

In order to seal the installation opening 111, a first sealing member 13 is provided between the cover body 12 and the bottom wall, and the first sealing member 13 is provided around the installation opening 111. Specifically, a first sealing member 13 is provided between the cover body 12 and the recessed portion 112, and the second sealing member 13 is configured in a ring shape to be arranged around the installation port 111. The first seal 13 seals the installation port 111, that is, seals the only opening where the box 100 can communicate with the outside, so that the box 100 can be waterproofed in all directions. At the same time, since the concave portion 112 of the bottom wall of the box body 11 is recessed upward, an installation space can be reserved for the installation of the first seal 13.

It can be understood that the first sealing member 13 can be any suitable structure, which is not limited in this application. For example, the first sealing member 13 may be an "O"-shaped sealing ring, or a labyrinth seal, or other sealing structure. It may also be a sealant applied around the contact surface of the cover 12 and the recess 112, or by The contact position between the cover 12 and the recess 112 is welded, and the first sealing member 13 is a weld. In an embodiment of the present application, the first sealing member 13 is a sealing strip arranged around the installation opening 111. Optionally, the cover 12 may also be provided with an installation groove for installing the seal, and the installation groove is arranged around the circumference of the installation opening 111.

In this application, any suitable structure and shape can be used to realize the detachable connection between the cover 12 and the recess 112 according to design requirements. For example, it is possible to use buckles that cooperate with each other on the bottom wall of the cover body 12 and the box body 11.

In an embodiment of the present application, as shown in FIGS. 1 and 2, the recess 112 on the bottom wall is provided with a plurality of first connecting holes 113 around the mounting opening 111, and the cover 12 is provided in one-to-one correspondence. There are a plurality of second connecting holes 121, and the first fastener 14 passes through the second connecting holes 121 to fit with the first connecting holes 113. The first fastener 14 may be a screw or a bolt.

That is, the recess 112 is provided with a plurality of first connecting holes 113 arranged around the mounting opening 111, and the cover 12 is provided with a plurality of second connecting holes 121, a plurality of first connecting holes 113 and a plurality of first connecting holes 113. The two connecting holes 121 correspond one-to-one, and the first fastener 14 passes through the first connecting hole 113 and is matched with the corresponding second connecting hole 121. Obviously, there are also multiple first fasteners 14, and each first fastener 14 passes through the corresponding first connecting hole 113 and is matched with the corresponding second connecting hole 121.

By arranging the first fastener 14 around the mounting opening 111 to realize the connection between the cover 12 and the recess 112, on the one hand, the circumference of the first sealing member 13 can be closely attached to the cover 12 and the recess 112. The sealing effect is improved, thereby increasing the waterproof effect; on the other hand, it is convenient to install and disassemble the cover 12, which saves production and manufacturing costs.

In the present application, the recess 112 can be formed into any appropriate structure and shape according to design requirements. For example, the entire bottom wall of the box body 11 may be recessed upward to form the recess 112, or a part of the bottom wall of the box body 11 may be recessed upward to form the recess 112. In an embodiment, as shown in FIGS. 1-3, the middle part of the bottom wall of the box body 11 is recessed upward to form a recess 112, and the recess 112 is provided with the above-mentioned installation opening 111. The recessed portion 112 may be an annular recessed platform, which has an L-shaped cross section in the height direction, and includes a recessed platform side wall 1121 and a recessed platform top wall 1122. The side wall 1121 of the concave platform extends upward, and the top wall 1122 of the concave platform surrounds the installation opening 111. On the one hand, the plane enclosed by the top wall 1122 of the recessed platform is convenient to fit with the cover 12 to close the installation opening 111 and prevent water from entering the box 100 from the installation opening 111. Moreover, the upwardly extending recessed platform side wall 1121 enables the installation opening 111 to be suspended relative to the lowest position of the bottom wall of the box body 11, so that the installation opening 111 is far away from the position where water may accumulate, thereby effectively avoiding the installation of water directly from the installation. The port 111 enters the inside of the box 100. On the other hand, the L-shaped cross section can be formed by the bending process of sheet metal parts, which is convenient for processing and saves production costs.

Specifically, the recess 112 includes a recessed platform side wall 1121 and a recessed platform top wall 1122. The recessed platform side wall 1121 is provided on the bottom wall and extends toward the inside of the box. The recessed platform top wall 1122 is provided on the recessed platform side wall 1121. The free end is directly opposite to the cover 12, and an installation port 111 is provided on the top wall 1122 of the concave platform.

A accommodating space for accommodating the cover 12 is formed between the top wall 1122 of the recessed platform and the side wall 1121 of the recessed platform, and a first sealing member 13 is provided between the cover 12 and the top wall 1122 of the recessed platform.

It should be noted that in this application, "inner" refers to the direction toward the center of the box 100, and "outer" refers to the direction away from the center of the box.

In order to further improve the waterproof effect and protect the electronic components in the box 100, in one embodiment of the present application, the mounting structure includes a fixed post 62 for fixing the suspension circuit board 64, or a fixing post 62 for fixing the air switch 61 The suspension bracket 63 or the load beam 43 for suspending the battery module 40. By setting the fixed column 62, the suspension bracket 63 and the load-bearing beam 43, the circuit board 64, the air switch 61 and the battery module 40 can be suspended relative to the bottom wall of the box body 11, away from the position where water may accumulate, and the box body 100 is protected. Electronic components inside. It should be noted that the installation structure may be at least one of a fixed column 62, a suspension bracket 63, and a load-bearing beam 43.

In an embodiment of the present application, the material of the box body 100 can be formed with a sheet metal structure, which is light in weight, convenient for processing, and reduces production costs. In other embodiments, materials such as aluminum, iron, steel, or plastic may also be used, which is not limited in this application.

In order to facilitate the locking and positioning between the modules, adjacent boxes 100 are fixedly connected by a plurality of spaced locking and positioning devices 20, as shown in Figures 1-7, the box 100 in the figure is the above The box 100 with a recess 112. It can be understood that, in other embodiments, the locking and positioning device 20 can also be provided on a common box.

As shown in FIGS. 5-7 and referring to FIGS. 2-4 at the same time, the locking and positioning device 20 includes a positioning column 21, a positioning groove 22, a second fastener 23 and a sealing cap 24. The positioning column 21 is provided in one of the adjacent boxes 100, and the positioning slot 22 is provided in the other of the adjacent boxes 100. In addition, the positioning groove 22 has a mounting plate 25 fixedly connected to the box body 100, and the mounting plate 25 divides the positioning groove 22 into a positioning cavity 221 and a mounting cavity 222. The positioning cavity 221 opens toward the adjacent box body 100 along the axial direction of the positioning column 21 for insertion of the positioning column 21, the mounting cavity 222 opens toward the outside of the box body 100, and a locking hole 213 extending in the radial direction is formed on the positioning column 21 The second fastener 23 passes through the mounting plate 25 from the mounting cavity 222 and is connected to the locking hole 213, and the sealing cap 24 is detachably closed on the opening of the mounting cavity 222.

Specifically, the locking positioning device 20 includes a positioning post 21, a positioning groove 22, a second fastener 23 and a sealing cap 24. The positioning post 21 is provided in one of the two adjacent boxes 100, and the positioning groove 22 is provided. In the other of the two adjacent boxes 100, and the positioning groove 22 is provided with a mounting plate 25 fixedly connected to the box with the positioning groove 22 in the two adjacent boxes 100, and the mounting plate 25 will The positioning groove 22 is divided into a positioning cavity 221 and a mounting cavity 222. The positioning cavity 221 is mated with the positioning post 21. The mounting cavity 222 has an opening toward the outside. The positioning post 21 is formed with a lock extending in the radial direction of the positioning post 21. The second fastener 23 passes through the mounting plate 25 from the mounting cavity 222 and is matched with the locking hole 213 through the hole 213, and the sealing cap 24 is detachably closed on the opening of the mounting cavity 222.

By providing matching positioning posts 21 and positioning slots 22, the relative displacement between the modules can be easily restricted. When stacked, the modules on the upper side will not fall due to shaking, etc., which may cause damage. Moreover, during installation, it is only necessary to align the position of the positioning post 21 and put on the positioning groove 22, and then use the second fastener 23 to lock it, and use the sealing cap 24 to seal the opening of the installation cavity 222. Otherwise, the locking relationship between the modules can be released. Therefore, locking or unlocking is convenient and quick, and the modules can be repaired or expanded as needed, and different modules can be stacked at will. Moreover, the structure is simple, and there is no need to make too many changes to the general structure of the box body 100. Since the relative position between the modules is fixed, it is also convenient to move multiple modules as a whole. By providing the sealing cap 24, the only opening in the installation groove that communicates with the outside can be sealed to prevent water from entering the opening position of the installation cavity 222.

In the present application, the locking hole 213 may be a threaded hole, and the second fastener 23 may be a screw fitted with the threaded hole. Alternatively, the locking hole 213 is an ordinary hole without threads, and the second fastener 23 is a pin that matches the ordinary hole.

In this application, the positioning groove 22 can be formed into any appropriate structure and shape according to design requirements, which is not limited in this application. For example, the side wall of the box body 100 may be recessed inwardly, and the positioning groove 22 is a part of the side wall of the box body 100. In an embodiment of the present application, as shown in FIG. 6, the positioning groove 22 may be roughly formed by welding an L-shaped plate to the inner wall of the box body 100, and the two ends of the L-shaped plate are respectively connected to the side wall and bottom of the box body 100. The wall is welded, and the opening of the L-shaped plate faces the outside of the box body 100. The mounting plate 25 may be substantially an L-shaped structure, and the bottom of the L-shaped structure is welded to the bottom wall of the box body 100, and the top of the L-shaped structure abuts against the top of the positioning groove 22. The mounting plate 25 is provided with a through hole for the second fastener 23 to pass through.

It is understandable that the positioning column 21 may be provided on the upper one of the adjacent boxes 100, and the positioning groove 22 may be provided on the lower one of the adjacent boxes 100, as long as the two positions correspond to each other. It is enough to realize locking and positioning. In an embodiment of the present application, the positioning column 21 is provided on the lower one of the adjacent boxes 100, and the positioning groove 22 is provided on the upper one of the adjacent boxes 100. In this embodiment, the positioning groove 22 is recessed upwards, which can effectively avoid the accumulation of water that may be generated in the positioning groove 22 after the positioning groove 22 enters water, and facilitate the drainage of the accumulated water from the original path where it enters.

In this application, the positioning column 21 can be formed into any appropriate structure and shape according to design requirements, which is not limited in this application. For example, the positioning pillar 21 may be a common cylindrical shape with a locking hole 213, and the end of the positioning pillar 21 is welded to the top wall of the box body 100. In an embodiment of the present application, as shown in FIG. 6, the positioning column 21 includes a mating section 211 and a fixing section 212, and the fixing section 212 is sealed through the wall of the box 100 so that the mating section 211 is inserted into the positioning slot 22. By sealing the fixing section 212 through the wall of the box body 100 in this way, the positioning column 21 and the box body 100 are fixed in this way. On the one hand, compared with welding, the cost is low, the installation and fixing are convenient, and the mechanical properties are good; on the other hand, By sealing between the fixing section 212 and the wall of the box body 100, water can be prevented from entering the box body 100 from here, and even if the sealing cap 24 fails, the water can be prevented from entering the box body 100 from here.

In the present application, the seal between the fixed section 212 and the box body 100 can be formed by any suitable structure or method according to design requirements, and this application does not limit this. For example, a seal can be provided between the fixed section 212 and the corresponding hole on the box body 100, or a sealant may be applied between the fixed section 212 and the corresponding hole on the box body 100 for sealing. In an embodiment of the present application, the fixed section 212 and the mating section 211 are in a stepped structure, a second sealing member 26 is provided between the stepped surface of the stepped structure and the outer wall of the corresponding box 100, and the fixed section 212 has a threaded parallel The nut 27 is fastened to the wall of the box body 100 by the nut 27 matched with it.

The step structure is convenient to limit the displacement of the positioning column 21 in the vertical direction. Through the cooperation of the nut 27 and the thread on the fixing section 212, the second sealing member 26 can be more closely attached to the step surface and the wall of the box body 100, which improves the sealing effect and prevents water from entering the box body 100 from here. The failure of the sealing cap 24 can also prevent water from entering the box 100 from here. Moreover, the fixing effect is good, the installation and disassembly are convenient, the cost is low, and the mechanical performance is good.

The second sealing member 26 may be an "O"-shaped sealing ring, or a sealing strip, or a labyrinth seal, or other sealing structure, which is not limited in this application. In this application, the second sealing member 26 is a sealing ring. Optionally, a seal installation groove for installing the second seal 26 is opened on the step surface of the step structure.

In some embodiments of the present application, the cross-sectional area of the fixed section 212 is smaller than the cross-sectional area of the mating section 211, so the connection between the fixed section 212 and the mating section 211 forms a stepped surface, which is connected to the adjacent two A second sealing member 26 is provided between the boxes where the positioning column 21 is provided in the two boxes, wherein a mounting groove is provided on the step surface, and the second sealing member 26 is provided in the mounting groove. Preferably, the second sealing member 26 is connected to the The one of the two adjacent boxes is in close contact with at least one of the three wall surfaces of the installation groove at the same time.

It can be understood that, among the multiple modules stacked in the vertical direction, the uppermost module and the lowermost module may only be provided with positioning posts 21 or positioning grooves 22 that are matched with adjacent modules. In an embodiment of the present application, among the plurality of modules, the top wall of the box body 100 of the middle module is provided with a positioning column 21, and the bottom wall is provided with a positioning slot 22 with a mounting plate 25. In other words, the same box 100 is provided with both the positioning column 21 and the positioning slot 22, so as to facilitate the locking and positioning between the upper and lower adjacent boxes 100.

It should be noted that the "intermediate module" does not only include modules that divide the number of stacked modules into equal parts, and all modules between the modules at both ends of the stacking direction belong to the "intermediate module" in this application.

In order to facilitate the electrical connection between the modules, in this application, as shown in FIGS. 1-5, adjacent modules are electrically connected by hot-swappable components. The hot plug component includes a hot plug male end 31 and a hot plug female end 32 that are matched. The hot plug male end 31 is provided at one of the bottom of the module on the upper side or the top of the module on the lower side, and the hot plug female end 32 is provided on the other of the bottom of the module on the upper side or the top of the module on the lower side. One. The electrical connection and communication connection between the modules are realized through hot-swappable components, which reduces the complexity of using cables, facilitates installation and disassembly, and the cables are routed neatly and safely, which effectively improves the inside of the power cabinet 200 The messy wiring also helps increase the number of modules in the power cabinet 200.

That is to say, two adjacent modules are electrically connected by a hot-swappable component. The hot-swappable component includes a mating hot-swappable male end 31 and a hot-swappable female end 32, and the hot-swappable male end 31 is arranged at On one of the two adjacent modules, the hot-swappable female end 32 is provided on the other of the two adjacent modules.

Specifically, lead the power lines and/or signal lines of each module to the corresponding hot-swappable components, and then connect the power lines and/or signal lines of two adjacent modules through the hot-swappable components , So as to realize the electrical connection between the modules.

In order to protect the hot-swappable components from water, the lower one of the adjacent modules has a protruding first waterproof seat 33, and the upper one has a concave second waterproof seat 34. One of the hot-swappable male end 31 and the hot-swappable female end 32 is arranged in the first waterproof seat 33, the other is arranged in the second waterproof seat 34, and the first waterproof seat 33 is inserted into the second waterproof seat 34 So that the hot-swappable components are electrically connected.

In this embodiment, the first waterproof seat 33 and the second waterproof seat 34 can effectively waterproof the hot-swappable components located therein, while avoiding damage to the hot-swappable components located in them when being moved. Moreover, the second waterproof seat 34 is recessed upwards and is arranged above, which can effectively avoid the accumulation of water that may be generated in the second waterproof seat 34 after water enters, and facilitate the drainage of the accumulated water from the original path where it enters.

Optionally, one of the two adjacent modules is provided with a first waterproof seat 33, and the other of the two adjacent modules is provided with a second waterproof seat 34 that cooperates with the first waterproof seat 33. One of the plug male end 31 and the hot plug female end 32 is arranged in the first waterproof seat 33, and the other of the hot plug male end 31 and the hot plug female end 32 is arranged in the second waterproof seat 34.

In this application, the first waterproof seat 33 and the second waterproof seat 34 can be formed into any appropriate shape and structure according to design requirements, which is not limited in this application. In one embodiment of the present application, the first waterproof seat 33 and the second waterproof seat 34 respectively have non-circular outer contours with matching shapes, so that while protecting the hot-swappable components, it can also assist adjacent modules. The positioning and limit the relative rotation between the mating modules. In one embodiment, the non-circular outer contour may be a rectangle. In other embodiments, the non-circular outer contour may also be a triangle, hexagon or other irregular outer contour, which is not limited in this application.

It should be noted that the first waterproof seat 33 and the second waterproof seat 34 are plug-fitted with each other and have a matching profile, and the profile of the first waterproof seat 33 and the profile of the second waterproof seat 34 fit each other and have a shape. The same, and the cross-sectional shape of the profile of the first waterproof seat 33 and the cross-sectional shape of the profile of the second waterproof seat 34 are non-circular, thereby restricting the relative rotation between the modules that cooperate with each other.

In an embodiment of the present application, as shown in FIG. 2, the above-mentioned multiple modules include a battery module 201. The battery module 201 is provided with a battery module 40. The above-mentioned installation structure includes a load-bearing beam 43 for suspending the battery module 40.

The load-bearing beam 43 can adopt any appropriate structure and shape according to design requirements, as long as the battery module 40 can be suspended, which is not limited in this application. In an embodiment of the present application, the bottom of the load-bearing beam 43 has a first fastening hole, the battery module 40 includes a hanging lug 41 having a second fastening hole, and the third fastener 42 passes through from bottom to top. The second fastening hole is matched with the first fastening hole. The third fastener 42 may be a screw or a bolt.

Providing the load-bearing beam 43 to fix the battery module 40 can increase the strength of the wall of the box body 100 at the corresponding position and improve the stability of the installation of the battery module 40. Moreover, the battery module 40 is installed by punching holes in the load-bearing beam 43 to avoid the problem of possible water seepage by punching holes in the wall of the box body 100. The battery module 40 is suspended by the load-bearing beam 43, away from the bottom wall of the box 100 and away from the position where water may accumulate. Even if water enters the box 100, it will not touch the battery module 40, thereby protecting the box. The battery module 40 in the body 100.

In an embodiment of the present application, the load-bearing beam 43 may be provided on the top wall of the box body 100, and may be connected by welding. It can be understood that, in other embodiments, the load-bearing beam 43 may also be provided on the side wall of the box body 100.

In an embodiment of the present application, there are two load-bearing beams 43 and are arranged in parallel, so that the battery module 40 is clamped between the two load-bearing beams 43. In addition, both the left and right sides of the battery module 40 are provided with the above-mentioned hanging ears 41, and the battery module 40 is fixed to the load beam 43 by the third fastener 42. By arranging two load-bearing beams 43 to fix both sides of the battery module 40, the connection strength and stability of the battery module 40 are improved, and the two load-bearing beams 43 can limit the displacement of the battery module 40 in the left-right direction. It is also easy to locate during installation. It can be understood that, in other embodiments, the load-bearing beam 43 for fixing the battery module 40 may be provided in the front, rear, left, and right directions of the battery module 40.

In an embodiment of the present application, as shown in FIG. 1, the module includes a battery management module 202. The battery management module 202 is provided with an air switch 61 and a circuit board 64, and the mounting structure includes a suspension bracket 63 for fixing the air switch 61 and a plurality of fixing posts 62 for fixing the circuit board 64.

The suspension bracket 63 can adopt any appropriate structure and shape according to the design requirements, as long as the air switch 61 can be suspended, which is not limited in this application. In an embodiment of the present application, as shown in FIG. 7, the suspension bracket 63 has an L-shaped structure and includes a first connecting plate 631 and a second connecting plate 632. The first connecting plate 631 is connected to the top wall of the box 100 , The second connecting plate 632 is connected to the air switch 61, and a plurality of fixed posts 62 arranged at intervals are connected between the circuit board 64 and the top wall of the box body 100.

The battery module 201 is used to provide energy, and the battery management module 202 performs charging and discharging management, safety management, and power extraction for the battery module 201 in the power cabinet 200. The suspension bracket 63 of the L-shaped structure facilitates the connection between the air switch 61 and the top wall. In one embodiment, the first connecting plate 631 may be connected to the top wall of the box body 100 through a rivet nut column, or may be directly welded to the top wall of the box body 100. The second connecting plate 632 may include two extended L-shaped clamping plates, which are clamped with the air switch 61. One side of the air switch 61 is connected to the side wall of the box body 100 through an air switch guard 611, and the other side of the air switch 61 is connected to the top wall of the box body 100 through a suspension bracket 63. In addition, a seal is provided between the air switch guard 611 and the side wall of the box body 100. The battery management module 202 may further include a side end cover 2021 that is convenient for the user to wire. The side end cover 2021 and the wall of the box body 100 are fixed by screws and sealed by a sealing tape.

The circuit board 64 and the air switch 61 are suspended by setting the fixed post 62 and the suspension bracket 63, away from the bottom wall of the box 100, and away from the location where water may accumulate, even if water enters the box 100, it will not touch the circuit The board 64 and the air switch 61 protect the circuit board 64 and the air switch 61 in the box 100. The fixed post 62 may be connected to the side wall of the box body 100 or the top wall of the box body 100.

In an embodiment of the present application, the fixed column 62 is a pressure riveting nut column, and the hexagon head of the pressure riveting nut column is pressed into the preset hole of the top wall of the box body 100 by a press to realize the connection between the two . Then, a fastener is passed through the circuit board 64 to connect with the rivet nut post. In other embodiments, one end of the fixed post 62 can be welded to the wall of the box body 100, and the other end is provided with a threaded hole for fitting with a fastener.

In an embodiment of the present application, the multiple modules include a battery management module 202 located at the top and at least one battery module 201 located below the battery management module 202. The battery management module 202 is provided with electronic components, and the battery module 201 is provided with battery modules and electronic components. Electronic components can be suspended from the bottom of the battery module. Installing the battery management module 202 on the top of the power cabinet helps users to perform wiring operations.

The base 50 is located below the battery module 201 and includes a box body and a ground wire in the box body. The ground wire is electrically connected to the battery module 201 to ground the modules in the power cabinet 200 to improve electrical safety. It can be understood that the electrical connection between the base 50 and the module located above it can be achieved through hot-swappable components.

By setting the base 50 at the bottom of the power cabinet 200 to support multiple modules, the installation of the modules above the base 50 is more convenient. At the same time, a certain gap is supported between the modules and the placement plane of the power cabinet 200 to achieve waterproofing. The purpose of moisture proof is to ensure the safety of the module at the bottom and even the entire power cabinet 200 and prolong the service life of the power cabinet 200. Four supporting feet can also be provided at intervals under the base 50 to facilitate a certain gap between the base 50 and the placement plane of the power cabinet 200 and also make the placement of the power cabinet 200 more stable.

It can be understood that, in other embodiments, the multiple modules may also include other modules according to design requirements.

In an embodiment of the present application, the power cabinet 200 is a household energy storage device. Among them, household energy storage adopts a home-style design, which can have the characteristics of low noise and small footprint, giving users more installation options. In some application scenarios, it can cooperate with the user's photovoltaic system to realize self-use of new energy power generation. It can also target the self-use of new energy power generation and the frequency modulation market, and can realize the function of stabilizing the power grid. In addition, for users who have installed rooftop solar modules, home energy storage devices can reduce electricity costs and end users’ dependence on the grid, and have significant effects in improving urban power safety. Of course, in other embodiments, the power cabinet 200 may also be an energy storage device that is convenient for outdoor power supply. In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply the pointed device or element It must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the application.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "multiple" means two or more, unless otherwise clearly defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the “on” or “under” of the first feature on the second feature may be in direct contact with the first and second features, or indirectly through an intermediary. contact. Moreover, the "above", "above" and "above" of the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than the second feature. The “below”, “below” and “below” of the second feature of the first feature may mean that the first feature is directly below or obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , The structure, materials, or characteristics are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the characteristics of the different embodiments or examples described in this specification without contradicting each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. A person of ordinary skill in the art can comment on the foregoing within the scope of the present application. The embodiment undergoes changes, modifications, substitutions and modifications.

Claims (29)

1. A power supply cabinet includes a base (50) and a plurality of modules stacked on the base (50) along the vertical direction and electrically connected in sequence, each module includes a box (100) and a box (100) installed on the box ( 100) at least one of the electronic components and the battery module (40), the box body (100) includes a box body (11), characterized in that, the box body (11) of the at least one box body The inner wall has an installation structure for installing at least one of the electronic components and the battery module (40), the bottom wall of the box body (11) is provided with an installation port (111), and the box body (100) It also includes a cover body (12) covering the mounting port (111).
2. The power supply cabinet according to claim 1, wherein the bottom wall has an upwardly recessed recess (112), and the installation opening is provided on the recess (112).
3. The power supply cabinet according to claim 1 or 2, characterized in that a first sealing element (13) is provided between the cover (12) and the bottom wall, and the first sealing element (13) surrounds The installation port (111) is set.
4. The power supply cabinet according to claim 1 or 2, characterized in that a first sealing member (13) is provided between the cover (12) and the recessed portion (112).
5. The power cabinet according to claim 3 or 4, wherein the bottom wall is provided with a plurality of first connection holes (113) around the mounting opening (111), and the cover (12) is arranged one by one. Correspondingly, a plurality of second connecting holes (121) are provided, and the first fastener (14) passes through the second connecting holes (121) to fit with the first connecting holes (113).
6. The power cabinet according to claim 3 or 4, characterized in that the recessed portion (112) is provided with a plurality of first connection holes (113) arranged around the mounting opening (111), and the cover The body (12) is provided with a plurality of second connecting holes (121), the plurality of first connecting holes (113) and the plurality of second connecting holes (121) are in one-to-one correspondence, and the first fastener ( 14) Passing through the first connecting hole (113) and mating with the corresponding second connecting hole (121).
7. The power supply cabinet according to any one of claims 1-6, wherein the installation structure comprises a fixed post (62) for suspending the circuit board (64), and a fixed post (62) for fixing the air switch (61) At least one of a suspension bracket (63) and a load beam (43) for suspending the battery module (40).
8. The power cabinet according to claim 2, characterized in that, the recessed portion (112) is an annular recessed platform, the annular recessed platform has an L-shaped cross section in the height direction and includes a recessed platform side wall (1121) and a recessed platform. The top wall (1122) of the recessed platform extends upwards, and the top wall (1122) of the recessed platform surrounds the installation opening (111).
9. The power supply cabinet according to claim 2, wherein the recessed portion (112) comprises:

   A recessed platform side wall (1121), the recessed platform side wall (1121) is arranged on the bottom wall and extends toward the inside of the box;

   The top wall (1122) of the recessed platform is arranged at the free end of the side wall (1121) of the recessed platform (1121) and is directly opposite to the cover (12), and the top wall ( 1122) is provided with the installation port (111).
10. The power supply cabinet according to any one of claims 1-9, characterized in that the adjacent boxes (100) are fixedly connected by a plurality of locking positioning devices (20) arranged at intervals.
11. The power cabinet according to claim 10, characterized in that the locking positioning device (20) comprises a positioning column (21), a positioning groove (22), a second fastener (23) and a sealing cap (24) , The positioning column (21) is provided in one of the adjacent boxes (100), the positioning slot (22) is provided in the other of the adjacent boxes (100), and the positioning The groove (22) has a mounting plate (25) fixedly connected to the box body (100), and the mounting plate (25) divides the positioning groove (22) into a positioning cavity (221) and a mounting cavity (222) , The positioning cavity (221) opens toward the adjacent box (100) along the axial direction of the positioning column (21) for the positioning column (21) to be inserted, and the mounting cavity (222) faces the The box body (100) has an outer opening, a locking hole (213) extending in the radial direction is formed on the positioning column (21), and the second fastener (23) passes through the installation cavity (222) The mounting plate (25) is connected with the locking hole (213), and the sealing cap (24) is detachably closed on the opening of the mounting cavity (222).
12. The power cabinet according to claim 7, characterized in that the locking positioning device (20) comprises a positioning column (21), a positioning groove (22), a second fastener (23) and a sealing cap (24) , The positioning column (21) is provided in one of the two adjacent boxes (100), and the positioning groove (22) is provided in one of the two adjacent boxes (100). On the other hand, the positioning groove (22) is provided with a mounting plate (25) fixedly connected to the two adjacent boxes (100) provided with the positioning grooves (22), and the installation The plate (25) divides the positioning groove (22) into a positioning cavity (221) and a mounting cavity (222). The positioning cavity (221) is mated with the positioning column (21), and the mounting cavity ( 222) has an opening toward the outside, a locking hole (213) extending in the radial direction of the positioning column (21) is formed on the positioning column (21), and the second fastener (23) The installation cavity (222) passes through the installation plate (25) and is matched with the locking hole (213), and the sealing cap (24) is detachably closed on the opening of the installation cavity (222).
13. The power cabinet according to claim 11 or 12, wherein the positioning column (21) comprises a mating section (211) and a fixing section (212), and the fixing section (212) is sealed through the box body (100) wall so that the mating section (211) is inserted into the positioning groove (22).
14. The power cabinet according to claim 13, wherein the fixing section (212) and the mating section (211) are in a stepped structure, and the stepped surface of the stepped structure and the outer wall of the corresponding box (100) A second sealing element (26) is arranged therebetween, and the fixing section (212) has threads and is fastened to the wall of the box body (100) through a nut element (27) matched with it.
15. The power cabinet according to claim 13, characterized in that the cross-sectional area of the fixed section (212) is smaller than the cross-sectional area of the mating section (211) so that the fixed section (212) and the mating section A stepped surface is formed at the junction of the segments (211), and a second sealing member (26) is provided between the stepped surface and the two adjacent boxes (100) where the positioning posts (21) are provided, An installation groove for installing the second seal (26) is provided on the step surface.
16. The power supply cabinet according to any one of claims 11-15, wherein the top wall of the box body (100) of the module located in the middle of the plurality of modules is provided with the positioning column (21) The bottom wall is provided with the positioning groove (22) having the mounting plate (25).
17. The power supply cabinet according to any one of claims 1-16, wherein the adjacent modules are electrically connected by hot-swappable components, and the hot-swappable components include mating hot-swappable males. End (31) and a hot-swappable female end (32), the hot-swappable male end (31) is arranged at one of the bottom of the module on the upper side or the top of the module on the lower side, the hot-swappable female The end (32) is provided at the other of the bottom of the module on the upper side or the top of the module on the lower side.
18. The power supply cabinet according to any one of claims 1-16, wherein the adjacent modules are electrically connected by hot-swappable components, and the hot-swappable components include mating hot-swappable males. End (31) and a hot-swappable female end (32), the hot-swappable male end (31) is arranged on one of the two adjacent modules, and the hot-swappable female end (32) is arranged On the other of the two adjacent modules.
19. The power cabinet according to claim 17 or 18, wherein the lower one of the adjacent modules has a convex first waterproof seat (33), and the upper one has a concave first waterproof seat (33). Two waterproof seats (34), one of the hot plug male end (31) and the hot plug female end (32) is set in the first waterproof seat (33), and the other is set in the first waterproof seat (33) In the second waterproof seat (34), the first waterproof seat (33) is inserted into the second waterproof seat (34) to electrically connect the hot-swappable component.
20. The power cabinet according to claim 17 or 18, wherein a first waterproof seat (33) is provided on one of the two adjacent modules, and the other of the two adjacent modules A second waterproof seat (34) that is matched with the first waterproof seat (33) is provided, and one of the hot plug male end (31) and the hot plug female end (32) is set in the In the first waterproof seat (33), the other of the hot plug male end (31) and the hot plug female end (32) is arranged in the second waterproof seat (34).
21. The power supply cabinet according to claim 19 or 20, wherein the first waterproof seat (33) and the second waterproof seat (34) respectively have a non-circular outer contour with a matching shape.
22. The power supply cabinet according to any one of claims 1-21, wherein the module comprises a battery module, the battery module is provided with a battery module (40), and the installation structure comprises suspending the The load-bearing beam (43) of the battery module (40).
23. The power cabinet according to claim 22, characterized in that the bottom of the load-bearing beam (43) has a first fastening hole, and the battery module (40) includes a hanging ear (41) having a second fastening hole. ), the third fastener (42) passes through the second fastening hole and the first fastening hole from bottom to top to fit.
24. The power cabinet according to claim 22 or 23, characterized in that, the load-bearing beams (43) are two and are arranged in parallel, so that the battery module (40) is clamped on the two load-bearing beams ( 43) between.
25. The power supply cabinet according to any one of claims 1-24, wherein the module comprises a battery management module, and an air switch (61) and a circuit board (64) are provided in the battery management module, and the The installation structure includes a suspension bracket (63) for fixing the air switch (61) and a plurality of fixing posts (62) for fixing the circuit board (64).
26. The power supply cabinet according to claim 25, wherein the suspension bracket (63) has an L-shaped structure and includes a first connecting plate (631) and a second connecting plate (632), and the first connecting plate ( 631) is connected to the top wall of the box (100), the second connecting plate (632) is connected to the air switch (61), and a plurality of the fixed uprights (62) arranged at intervals are connected to the Between the circuit board (64) and the top wall of the box body (100).
27. The power supply cabinet according to any one of claims 1-26, wherein a plurality of the modules include a battery management module (202) located on the top and at least one battery located below the battery management module (202) A module (201), the battery management module (202) is provided with electronic components, and the battery module (201) is provided with a battery module.
28. The power cabinet according to claim 27, characterized in that the base (50) is located below the battery module (201) and includes the box body (100) and a ground located in the box body (100). Wire, the ground wire is electrically connected to the battery module.
29. The power supply cabinet according to any one of claims 1-28, wherein the power supply cabinet (200) is a household energy storage device.

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