Energy storage liquid cooling cabinet

Abstract

The utility model relates to the technical field of energy storage, and discloses an energy storage liquid cooling cabinet which comprises a shell, a battery module, a liquid cooling system, a control unit, a junction box, a wiring terminal, a first cable and a second cable. The battery module, the liquid cooling system and the control unit are arranged in the accommodating cavity; the control unit is connected with the liquid cooling system. The junction box comprises a bottom shell and a cover plate, the bottom shell is fixed to the shell, the bottom shell is provided with a cavity and an opening communicated with the cavity, and the cover plate detachably covers the opening. The wiring terminal is arranged in the cavity. One end of the first cable is connected with the control unit, and the other end of the first cable penetrates through the bottom shell and then is connected to one end of the wiring terminal. One end of the second cable is connected to the other end of the wiring terminal, the other end of the second cable penetrates through the bottom shell and then extends out of the shell, and the other end of the second cable is used for being connected with other equipment. Through the mode, the efficiency of testing different control units by the energy storage liquid cooling cabinet can be improved, and the testing cost can be reduced.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage liquid cooling cabinet. Background Art

[0002] The energy storage liquid cooling cabinet is an energy storage device that stores packaged battery packs and can play a major role when electricity is urgently needed. The energy storage liquid cooling cabinet also has a liquid cooling system, which is used to absorb the heat of the battery pack and release it to the external environment. The control unit controls the operation of the liquid cooling system to keep the temperature of the battery pack within a safe range.

[0003] At present, the cables of the control unit of the energy storage liquid cooling cabinet are connected to the electrical connector at the bottom of the energy storage liquid cooling cabinet, and then connected to other devices through an external cable with a connector that matches the electrical connector at the bottom of the energy storage liquid cooling cabinet. During the development of the energy storage liquid cooling cabinet, control units of different specifications and models will be replaced to select the optimal control unit specifications and models through testing. Different specifications and models of control units will require different types of cables, and therefore different types of electrical connectors need to be matched. When replacing the control unit, different types of electrical connectors and corresponding external cables need to be replaced accordingly, which leads to high replacement costs and complicated operations when connecting and disassembling the electrical connectors and cables. Utility Model Content

[0004] In view of the problems existing in the background technology, the purpose of the present application is to provide an energy storage liquid cooling cabinet that overcomes the above problems or at least partially solves the above problems.

[0005] According to a first aspect of the present application, there is provided an energy storage liquid cooling cabinet, comprising: a shell, a battery module, a liquid cooling system, a control unit, a junction box, a terminal, a first cable and a second cable. The battery module is arranged in the accommodating cavity. The liquid cooling system is arranged in the accommodating cavity. The control unit is arranged in the accommodating cavity, and the control unit is connected to the liquid cooling system. The junction box comprises a bottom shell and a cover plate, the bottom shell is fixed to the shell, the bottom shell is provided with a cavity and an opening connected to the cavity, and the cover plate is detachably covered on the opening. The terminal is arranged in the cavity. One end of the first cable is connected to the control unit, and the other end of the first cable is connected to one end of the terminal after passing through the bottom shell. One end of the second cable is connected to the other end of the terminal, and the other end of the second cable extends out of the shell after passing through the bottom shell, and the other end of the second cable is used to connect with other devices.

[0006] In one or more of the above optional embodiments, the shell is provided with a mounting opening, the mounting opening is communicated with the accommodating cavity, and one end of the bottom shell away from the opening is inserted into the mounting opening.

[0007] In one or more of the above optional embodiments, the housing includes a side wall and a top wall and a bottom wall arranged at opposite ends of the side wall, the control unit is located in the area of ​​the accommodating cavity close to the top wall, and the installation port is arranged at one end of the side wall close to the bottom wall. The bottom shell includes a vertical plate arranged toward the opening and a top plate and a bottom plate arranged at opposite ends of the vertical plate, the top plate and the bottom plate are arranged at opposite intervals along the direction from the top wall to the bottom wall, and the wiring terminal is fixed to the vertical plate.

[0008] In one or more optional embodiments above, the junction box further includes a first cable fixing seat, the first cable fixing seat is fixed to the top plate, and the first cable is passed through the first cable fixing seat.

[0009] In one or more of the above optional embodiments, the vertical plate is provided with a first wire passing hole, and the first cable is passed through the first wire passing hole.

[0010] In one or more optional embodiments above, the first cable is connected to one end of the wiring terminal facing the top plate, and the second cable is connected to one end of the wiring terminal facing the bottom plate.

[0011] In one or more optional embodiments above, the junction box further comprises a second cable fixing seat, the second cable fixing seat is fixed to the vertical plate, and the second cable fixing seat is located between the bottom plate and the wiring terminal, and the second cable is passed through the second cable fixing seat.

[0012] In one or more optional embodiments above, the bottom plate at least partially protrudes from the shell, a second wire passing hole is provided at the portion of the bottom plate protruding from the shell, and the second cable is passed through the second wire passing hole.

[0013] In one or more of the above optional embodiments, the wiring terminals include high-current wiring terminals and low-current wiring terminals, the first cable includes a first high-current cable and a first low-current cable, the second cable includes a second high-current cable and a second low-current cable, the two ends of the first high-current cable are respectively connected to the control unit and the high-current wiring terminals, the two ends of the first low-current cable are respectively connected to the control unit and the low-current wiring terminals, one end of the second high-current cable is connected to the high-current wiring terminals, and the other end of the second high-current cable is used to connect to other devices, one end of the second low-current cable is connected to the low-current wiring terminals, and the other end of the second low-current cable is used to connect to other devices.

[0014] In one or more of the above optional embodiments, the bottom shell is detachably fixed to the shell.

[0015] The beneficial effects of the embodiments of the present application are as follows: in the energy storage liquid cooling cabinet provided by the embodiments of the present application, the first cable and the second cable are electrically connected via a wiring terminal arranged in a junction box, and the first cable and the second cable are respectively connected to both ends of the wiring terminal. Compared with the traditional method of installing cables on electrical connectors, the first cable and the wiring terminal are more convenient to disassemble and assemble, and the electrical connector is replaced with the wiring terminal. When replacing control units of different specifications and models, there is no need to replace the electrical connector accordingly, which saves costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 An exploded view of an energy storage liquid cooling cabinet provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a shell of an energy storage liquid cooling cabinet provided in an embodiment of the present application without a side wall to reveal a control unit;

[0019] Figure 3 A schematic diagram of the arrangement positions of the components of a junction box of an energy storage liquid cooling cabinet provided in an embodiment of the present application in a bottom shell;

[0020] Figure 4 A partial exploded view of an energy storage liquid cooling cabinet provided in an embodiment of the present application;

[0021] Figure 5Another schematic diagram of the arrangement positions of the components of the junction box of an energy storage liquid cooling cabinet provided in an embodiment of the present application in the bottom shell;

[0022] Figure 6 Another schematic diagram of the arrangement positions of the components of the junction box of an energy storage liquid cooling cabinet provided in an embodiment of the present application within a bottom shell. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0025] In the description of this specification, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0027] See also Figure 1-4The energy storage liquid cooling cabinet 1000 includes a housing 1, a battery module (not shown), a liquid cooling system (not shown), a control unit 2, a junction box 3, a terminal 4, a first cable 5 and a second cable 6. The housing 1 is provided with a housing chamber 11. The battery module is provided in the housing chamber 11, and the battery module is used to store energy and supply power to electrical equipment. The liquid cooling system is provided in the housing chamber 11, and the liquid cooling system is used to absorb the heat of the battery module and release it to the external environment to keep the temperature of the battery module within a safe range. The control unit 2 is provided in the housing chamber 11, and the control unit 2 is electrically connected to the liquid cooling system. The junction box 3 includes a bottom shell 31 and a cover plate 32, the bottom shell 31 is fixed to the housing 1, the bottom shell 31 is provided with a cavity 311 and an opening 312 communicating with the cavity 311, and the cover plate 32 is detachably covered on the opening 312. The terminal 4 is provided in the cavity 311. One end of the first cable 5 is connected to the control unit 2, and the other end of the first cable 5 is connected to one end of the terminal 4 after passing through the bottom shell 31. One end of the second cable 6 is connected to the other end of the wiring terminal 4 , and the other end of the second cable 6 passes through the bottom shell 31 and extends out of the housing 1 . The other end of the second cable 6 is used to connect to other devices.

[0028] In the energy storage liquid cooling cabinet 1000 provided in the embodiment of the present application, the first cable 5 and the second cable 6 are electrically connected through the wiring terminal 4 arranged in the junction box 3, and the first cable 5 and the second cable 6 are respectively connected to the two ends of the wiring terminal. Compared with the traditional method of installing cables on electrical connectors, the first cable 5 and the wiring terminal 4 are more convenient to disassemble and assemble, and the electrical connector is replaced with the wiring terminal 4. When replacing control units 2 of different specifications and models, there is no need to replace the electrical connector accordingly, which saves costs.

[0029] See also Figure 5 and Figure 6 In some embodiments, the terminal block 4 is a spring-type terminal block, including a base 41, a first contact piece (not shown), a second contact piece (not shown), a first spring piece (not shown) and a second spring piece (not shown). The base 41 is fixed to the bottom shell 31. The base 41 is provided with a first wiring hole 411 and a second wiring hole 412. The first contact piece and the first spring piece are arranged in the first wiring hole 411, and the second contact piece and the second spring piece are arranged in the second wiring hole 412. The first contact piece and the second contact piece are electrically connected. One end of the first cable 5 is connected to a first wiring nose, and the first wiring nose is pressed and fixed between the first spring piece and the first contact piece by the first spring piece. One end of the second cable 6 is connected to a second wiring nose, and the second wiring nose is pressed and fixed between the second spring piece and the second contact piece by the second spring piece.

[0030] It can be understood that the terminal is not limited to the above-mentioned spring-type terminal. For example, in other embodiments, the terminal can also be a screw-type terminal. The screw-type terminal uses screws or nuts to clamp the wire. The specific structure of the screw-type terminal can be understood by those skilled in the art, so it will not be described in detail.

[0031] See also Figure 4 In some embodiments, the cover plate 32 is provided with a plurality of first bolt holes 321, and the plurality of first bolt holes 321 are arranged around the periphery of the cover plate 32. The end of the bottom shell 31 facing the cover plate 32 is provided with a plurality of first nuts 313 corresponding to the first bolt holes 321 one by one. The junction box 3 also includes a plurality of first fixing bolts (not shown). Along the direction in which the cover plate 32 covers the opening 312, a first fixing bolt passes through a first bolt hole 321 and is screwed and fixed to a first nut 313 to fix the cover plate 32 to the bottom shell 31.

[0032] It is understandable that the cover plate 32 is not limited to being fixed to the bottom shell 31 by bolt connection. For example, in some other embodiments, the cover plate 32 can also be detachably fixed to the bottom shell 31 by means of snap connection or the like.

[0033] See also Figure 1 , Figure 2 and Figure 4 In some embodiments, the housing 1 is provided with an installation opening 12 , which is communicated with the accommodating cavity 11 , and one end of the bottom shell 31 away from the opening 312 is inserted into the installation opening 12 .

[0034] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 In some embodiments, the installation opening 12 is provided on the side wall of the housing 1, the installation opening 12 is communicated with the accommodating cavity 11, and the first limiting plate 314 and the second limiting plate 315 are respectively provided at opposite ends of the bottom housing 31. Along the direction in which the bottom housing 31 is inserted into the installation opening 12, the first limiting plate 314 and the second limiting plate 315 are respectively in contact with the side wall of the housing 1.

[0035] In some embodiments, the bottom shell 31 is detachably fixed to the housing 1 .

[0036] In some embodiments, the first limiting plate 314 is provided with a plurality of second bolt holes 3141, the second limiting plate 315 is provided with a plurality of third bolt holes 3151, the side wall of the shell 1 is provided with a plurality of second nuts 16 and a plurality of third nuts 17, the second nuts 16 are arranged in a one-to-one correspondence with the second bolt holes 3141, and the third nuts 17 are arranged in a one-to-one correspondence with the third bolt holes 3151. The energy storage liquid cooling cabinet 1000 also includes a plurality of second fixing bolts (not shown) and a plurality of third fixing bolts (not shown). Along the direction from the opening 312 to the vertical plate 316, a second fixing bolt passes through a second bolt hole 3141 and is screwed and fixed to a second nut 16, and a third fixing bolt passes through a third bolt hole 3151 and is screwed and fixed to a third nut 17.

[0037] It is understandable that the bottom shell 31 is not limited to being fixed to the housing 1 by bolt connection. For example, in some other embodiments, the bottom shell 31 can also be detachably fixed to the housing 1 by means of snap connection or the like.

[0038] See also Figure 1 and Figure 2 In some embodiments, the shell 1 includes a side wall 13 and a top wall 14 and a bottom wall 15 that are arranged opposite to both ends of the side wall 13 . The side wall 13 , the top wall 14 and the bottom wall 15 together enclose a receiving cavity 11 .

[0039] See also Figure 1 , Figure 2 and Figure 4 In some embodiments, the control unit 2 is located in the area of ​​the accommodating cavity 11 close to the top wall 14, the installation port 12 is arranged at one end of the side wall 13 close to the bottom wall 15, the bottom shell 31 includes a vertical plate 316 arranged toward the opening 312 and a top plate 317 and a bottom plate 318 arranged at opposite ends of the vertical plate 316, the top plate 317 and the bottom plate 318 are arranged relatively spaced apart in the direction from the top wall 14 to the bottom wall 15, and the wiring terminal 4 is fixed to the vertical plate 316.

[0040] In some embodiments, the bottom shell 31 includes a first side plate 319 and a second side plate 320 arranged on both sides of the vertical plate 316 , and the top plate 317 , the bottom plate 318 , the first side plate 319 , the second side plate 320 and the vertical plate 316 together enclose a cavity 311 .

[0041] See also Figure 5 In some embodiments, the junction box 3 further includes a first cable fixing seat 33 , the first cable fixing seat 33 is fixed to the top plate 317 , and the first cable 5 is passed through the first cable fixing seat 33 .

[0042] See also Figure 2 , Figure 3 and Figure 5When the liquid cooling cabinet is in a correctly placed state, along the gravity direction X, the bottom wall 15 is located below the top wall 14, and the terminal block 4 fixed to the vertical plate 316 is located below the top plate 317. The first cable fixing seat 33 can suspend the first cable 5 on the top plate 317 to prevent the first cable 5 from falling under the action of gravity and contacting the connection point between the terminal block 4 and the first cable 5.

[0043] In some embodiments, the first cable 5 is connected to one end of the connection terminal 4 facing the top plate 317 , and the second cable 6 is connected to one end of the connection terminal 4 facing the bottom plate 318 .

[0044] See also Figure 3 , Figure 5 and Figure 6 Specifically, in some embodiments, the base 41 is fixed to the vertical plate 316, the opening of the first wiring hole 411 is arranged on the end surface of the base 41 facing the top plate 317, the first cable 5 is plugged into the first wiring hole 411 along the direction from the top plate 317 to the bottom plate 318, the opening of the second wiring hole 412 is arranged on the end surface of the base 41 facing the bottom plate 318, and the second cable 6 is plugged into the second wiring hole 412 along the direction from the bottom plate 318 to the top plate 317.

[0045] In some embodiments, the first cable fixing seat 33 includes a first fixing plate 331 and a first limiting bridge 332. The first fixing plate 331 includes a first surface and a second surface opposite to the first surface. The first surface of the first fixing plate 331 is fitted and fixed to the surface of the top plate 317 facing the cavity 311. The two ends of the first limiting bridge 332 are respectively connected to the second surface. The first limiting bridge 332 is arched along the top plate 317 toward the bottom plate 318. A first threading hole 333 is formed between the first limiting bridge 332 and the first fixing plate 331. The first cable 5 is passed through the first threading hole 333.

[0046] It is understandable that the first cable fixing seat 33 may also select other types of structures capable of fixing the cable. For example, in some other embodiments, the first cable fixing seat 33 may also be provided with a clip to clamp and fix the cable.

[0047] See also Figure 5 In some embodiments, the vertical plate 316 is provided with a first wire-passing hole 3161 , and the first cable 5 is passed through the first wire-passing hole 3161 .

[0048] In some embodiments, along the direction from the bottom plate 318 to the top plate 317 , the first wire hole 3161 is closer to the top plate 317 than the connection terminal 4 .

[0049] In some embodiments, a sealing sleeve (not shown) is provided at the first cable hole 3161, and the first cable 5 is passed through the sealing sleeve.

[0050] In some embodiments, a sealant (not shown) is filled between the first cable hole 3161 and the first cable 5 .

[0051] See also Figure 3 and Figure 5 In some embodiments, the junction box 3 further includes a second cable fixing seat 34 , which is fixed to the vertical plate 316 , and the second cable fixing seat 34 is located between the bottom plate 318 and the wiring terminal 4 , and the second cable 6 is passed through the second cable fixing seat 34 .

[0052] In some embodiments, the second cable fixing seat 34 includes a second fixing plate 341 and a second limiting bridge 342, the second fixing plate 341 includes a first surface and a second surface opposite to the second surface, the second surface of the second fixing plate 341 is fitted and fixed to the surface of the vertical plate 316 facing the opening 312, the two ends of the second limiting bridge 342 are respectively connected to the second surface, the second limiting bridge 342 is arched along the direction of the vertical plate 316 toward the opening 312, and a second threading hole 343 is formed between the second limiting bridge 342 and the second fixing plate 341. The second cable 6 is passed through the second threading hole 343.

[0053] See also Figure 4 and Figure 5 In some embodiments, the second cable fixing seat 34 includes a second mounting seat 344, a second pressing plate 345 and two second connecting bolts (not shown), and the vertical plate 316 is provided with two second mounting nuts 3162. A second connecting bolt passes through the second pressing plate 345 and the second mounting seat 344 in sequence and is screwed and fixed to a second mounting nut 3163. The two second connecting bolts cooperate with the two second mounting nuts 3162 to fix the second mounting seat 344 to the vertical plate 316, and press and fix the second pressing plate 345 to the second mounting seat 344. The surface of the second pressing plate 345 facing the second mounting seat 344 and the surface of the second mounting seat 344 facing the second pressing plate 345 are enclosed to form a second threading hole 343, and the second cable 6 is passed through the second threading hole 343. The second pressing plate 345 presses and fixes the second cable 6 to the second mounting seat 344. The second cable fixing seat 34 uses a second connecting bolt to connect the second pressing plate 345 and the second mounting seat 344, which can achieve a better fixing effect to meet the fixing requirements for cables with larger wire diameters, such as power cables.

[0054] It is understandable that the second cable fixing seat 34 can select the aforementioned structure including the second fixing plate 341 and the second limiting bridge 342 according to the actual type of cable, and / or the structure including the second mounting seat 344, the second pressing plate 345 and the second connecting bolt. The second cable fixing seat 34 can also select other types of structures capable of fixing the cable, for example, the second cable fixing seat 34 can also be provided with a clip to clamp and fix the cable.

[0055] See also Figure 1 , Figure 3 and Figure 6 In some embodiments, the bottom plate 318 at least partially protrudes from the shell 1 , and the portion of the bottom plate 318 protruding from the shell 1 is provided with a second wire hole 3181 , and the second cable 6 is passed through the second wire hole 3181 .

[0056] In some embodiments, a sealing sleeve is provided at the second wire hole 3181, and the second cable 6 is passed through the sealing sleeve (not shown).

[0057] In some embodiments, a sealant (not shown) is filled between the second cable hole 3181 and the second cable 6 .

[0058] In some embodiments, the connection terminal 4 is screwed and fixed to the vertical plate 316 .

[0059] See also Figure 3 In some embodiments, the wiring terminals include a high-current wiring terminal 42 and a low-current wiring terminal 43, the first cable 5 includes a first high-current cable 51 and a first low-current cable 52, the second cable 6 includes a second high-current cable 61 and a second low-current cable 62, the two ends of the first high-current cable 51 are respectively connected to the control unit 2 and the high-current wiring terminal 42, the two ends of the first low-current cable 52 are respectively connected to the control unit 2 and the low-current wiring terminal 43, one end of the second high-current cable 61 is connected to the high-current wiring terminal 42, and the other end of the second high-current cable 61 is used to connect to other devices, one end of the second low-current cable 62 is connected to the low-current wiring terminal 43, and the other end of the second low-current cable 62 is used to connect to other devices.

[0060] In some embodiments, the first high-voltage cable 51 and the second high-voltage cable 61 are both power cables, and the other end of the second high-voltage cable 61 is used to connect to a power supply.

[0061] In some embodiments, the first weak-current cable 52 includes a monitoring line incoming cable 521 and a line control line incoming cable 522, the weak-current terminal 43 includes a first terminal 431 and a second terminal 432, and the second weak-current cable 62 includes a monitoring line outgoing cable 621 and a line control line outgoing cable 622. The two ends of the monitoring line incoming cable 521 are respectively connected to the control unit 2 and the first terminal 431, one end of the monitoring line outgoing cable 621 is connected to the first terminal 431, and the other end of the monitoring line outgoing cable 621 is used to connect to the human-machine interface device. The two ends of the line control line incoming cable 522 are respectively connected to the control unit 2 and the second terminal 432, one end of the line control line outgoing cable 622 is connected to the second terminal 432, and the other end of the line control line outgoing cable 622 is used to connect to the wire controller.

[0062] In some embodiments, the high-voltage terminal 42 , the first terminal 431 , and the second terminal 432 are sequentially arranged side by side in a spaced relationship from the first side plate 319 to the second side plate 320 .

[0063] In some embodiments, there are two first cable fixing seats 33 and two second cable fixing seats 34 . The first high-voltage cable 51 is passed through one of the first cable fixing seats 33 , and the monitoring line incoming cable 521 and the line control line incoming cable 522 are passed through another first cable fixing seat 33 .

[0064] In some embodiments, there are two second cable fixing seats 34 , the second high-voltage cable 61 is passed through one of the second cable fixing seats 34 , and the monitoring line outlet cable 621 and the line control line outlet cable 622 are passed through the other second cable fixing seat 34 .

[0065] In some embodiments, along the direction from the top plate 317 to the bottom plate 318, a first cable fixing seat 33 through which the first high-current cable 51 is passed, a high-current terminal 42, and a second cable fixing seat 34 through which the second high-current cable 61 is passed are arranged in sequence; the first cable fixing seat 33 through which the monitoring line incoming cable 521 is passed and the second cable fixing seat 34 through which the monitoring line outgoing cable 621 is passed are located on both sides of the low-current terminal 43.

[0066] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An energy storage liquid cooling cabinet, characterized in that: include: A housing having a receiving cavity A battery module is arranged in the accommodating cavity; A liquid cooling system is arranged in the accommodating cavity; A control unit, disposed in the accommodating cavity, and connected to the liquid cooling system; The junction box comprises a bottom shell and a cover plate, wherein the bottom shell is fixed to the housing, the bottom shell is provided with a cavity and an opening communicating with the cavity, and the cover plate is detachably covered on the opening; A connection terminal is arranged in the cavity; a first cable, one end of which is connected to the control unit, and the other end of which passes through the bottom shell and is connected to one end of the wiring terminal; A second cable, one end of the second cable is connected to the other end of the wiring terminal, the other end of the second cable passes through the bottom shell and extends out of the shell, and the other end of the second cable is used to connect with other equipment.

2. The energy storage liquid cooling cabinet according to claim 1, characterized in that: The shell body is provided with an installation opening, the installation opening is communicated with the accommodating cavity, and one end of the bottom shell away from the opening is inserted into the installation opening.

3. The energy storage liquid cooling cabinet according to claim 2, characterized in that: The housing comprises a side wall and a top wall and a bottom wall arranged at two ends of the side wall, the control unit is located in a region of the accommodating cavity close to the top wall, and the mounting opening is arranged at one end of the side wall close to the bottom wall; The bottom shell includes a vertical plate arranged toward the opening and a top plate and a bottom plate arranged at two ends of the vertical plate. The top plate and the bottom plate are arranged relatively spaced apart from each other along the direction from the top wall to the bottom wall. The connection terminal is fixed to the vertical plate.

4. The energy storage liquid cooling cabinet according to claim 3, characterized in that: The junction box further includes a first cable fixing seat, the first cable fixing seat is fixed to the top plate, and the first cable is passed through the first cable fixing seat.

5. The energy storage liquid cooling cabinet according to claim 4, characterized in that: The vertical plate is provided with a first wire passing hole, and the first cable is passed through the first wire passing hole.

6. The energy storage liquid cooling cabinet according to claim 3, characterized in that: The first cable is connected to one end of the connection terminal facing the top plate, and the second cable is connected to one end of the connection terminal facing the bottom plate.

7. The energy storage liquid cooling cabinet according to claim 3, characterized in that: The junction box further comprises a second cable fixing seat, which is fixed to the vertical plate and is located between the bottom plate and the wiring terminal, and the second cable is passed through the second cable fixing seat.

8. The energy storage liquid cooling cabinet according to claim 7, characterized in that: The bottom plate at least partially protrudes from the shell, and a second wire-passing hole is provided on the portion of the bottom plate protruding from the shell, and the second cable is passed through the second wire-passing hole.

9. The energy storage liquid cooling cabinet according to claim 1, characterized in that: The wiring terminals include high-current wiring terminals and low-current wiring terminals, the first cable includes a first high-current cable and a first low-current cable, the second cable includes a second high-current cable and a second low-current cable, both ends of the first high-current cable are respectively connected to the control unit and the high-current wiring terminals, both ends of the first low-current cable are respectively connected to the control unit and the low-current wiring terminals, one end of the second high-current cable is connected to the high-current wiring terminals, and the other end of the second high-current cable is used to connect to other devices, one end of the second low-current cable is connected to the low-current wiring terminals, and the other end of the second low-current cable is used to connect to other devices.

10. The energy storage liquid cooling cabinet according to any one of claims 1 to 9, characterized in that: The bottom shell is detachably fixed to the housing.

Images