Main control box and energy storage cabinet

Abstract

The embodiment of the utility model discloses a main control box and an energy storage cabinet. The main control box comprises a box body and a box door, the box body is provided with a cavity with an opening, the box door is rotatably connected with the box body, the cavity is closed at the opening, a power distribution module and a main control module of the battery management system are arranged in the cavity, and the power distribution module is electrically connected with the battery management system and used for distributing power for the battery management system; therefore, the auxiliary power supply is provided for the battery management system, power distribution and control are integrated in the main control box, general control of the battery management system does not need to be integrated in the confluence cabinet, the size of the confluence cabinet is reduced, the occupied space of the confluence cabinet in the energy storage cabinet is reduced, and the power distribution, confluence and fire protection layout of the energy storage cabinet is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a master control box and an energy storage cabinet. BACKGROUND

[0002] With the continuous development of the electrochemical energy storage industry, the energy density of the energy storage system is getting larger and larger, and the volume of the battery cabin of the energy storage cabinet where the energy storage system is located is also increasing. In order to maintain the size of the energy storage cabinet unchanged, the space of the electrical cabin of the energy storage cabinet needs to be compressed by the battery cabin, resulting in that the space among power distribution, current collection and fire fighting of the energy storage cabinet becomes difficult to coordinate.

[0003] In the related art, in order to coordinate the power distribution, current collection and fire fighting of the energy storage cabinet, a vertical current collection cabinet is usually arranged in the energy storage cabinet, and a battery management system master control is integrated in the interior of the current collection cabinet, and then an additional power distribution box is arranged in the energy storage cabinet to provide auxiliary power for the battery management system. However, the power distribution box occupies a large amount of space, which is not conducive to the layout of the fire fighting system in the energy storage cabinet. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the present application provides a master control box and an energy storage cabinet, aiming to solve the technical problem of poor layout of power distribution, current collection and fire fighting of the energy storage cabinet in the prior art.

[0005] To solve the above problems, in a first aspect, the present application provides a master control box, comprising:

[0006] a box body, provided with a cavity with an opening;

[0007] a box door, rotatably connected with the box body and closing the cavity at the opening;

[0008] wherein the cavity is provided with a power distribution module and a master control module of a battery management system, the power distribution module is electrically connected with the battery management system and is used for distributing power supply for the battery management system.

[0009] Further, in the master control box, the power distribution module is an alternating current power distribution module.

[0010] Further, in the master control box, the master control module is arranged on a first surface of the box door close to the opening.

[0011] Further, in the master control box, the first surface is further provided with a wiring pipe surrounding the master control module.

[0012] Further, in the master control box, at least one of a display module, an operation module and a status module of the battery management system is arranged on a second surface of the box door away from the opening.

[0013] Further, in the master control box, the power distribution module comprises an incoming line switch, a mutual inductor and a switching power supply.

[0014] The bottom of the box body is provided with at least one incoming line hole, the incoming line switch is close to the incoming line hole, one end of the mutual inductor is electrically connected to the incoming line switch, and the other end of the mutual inductor is electrically connected to the switching power supply.

[0015] Further, in the master control box, the power distribution module further comprises a direct current switch and a time delay switch.

[0016] The direct current switch is electrically connected to the direct current output end of the switching power supply, and the time delay switch is respectively electrically connected to the master control module and the switching power supply.

[0017] Further, in the master control box, a wire slot is further arranged in the cavity, and the wire slot is close to the two sides of the box body.

[0018] Further, in the master control box, a mounting member is arranged on the third surface of the box body away from the cavity.

[0019] In a second aspect, the application further provides an energy storage system comprising the master control box.

[0020] The master control box provided by the application comprises a box body and a box door, the box body is provided with an open cavity, the box door is rotationally connected to the box body and closes the cavity at the opening, the cavity is provided with a power distribution module and a master control module of a battery management system, the power distribution module is electrically connected to the battery management system and is used for distributing power supply for the battery management system, so as to provide auxiliary power supply for the battery management system, thereby realizing the integration of power distribution and control in the master control box, without integrating the master control of the battery management system in the busbar cabinet, reducing the volume of the busbar cabinet, thereby reducing the occupied space of the busbar cabinet in the energy storage cabinet, and optimizing the layout of power distribution, busbar and fire fighting of the energy storage cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 The structure diagram of the master control box provided by the embodiment of the application;

[0023] Figure 2 Another structure diagram of the master control box provided by the embodiment of the application;

[0024] Figure 3 A front view of a master control box provided by an embodiment of the present application is shown in FIG. 1.

[0025] Figure 4 A front view of a box provided by an embodiment of the present application is shown in FIG. 2.

[0026] Figure 5 A rear view of a box door provided by an embodiment of the present application is shown in FIG. 3.

[0027] Figure 6 A schematic view of a mounting base provided by an embodiment of the present application is shown in FIG. 4.

[0028] In the figures, 10 is a box, 101 is an inlet hole, 102 is a heat dissipation hole, 103 is a wiring groove, 104 is a mounting piece, 1041 is a bearing part, 1042 is a mounting part, 1043 is a first through hole, 1044 is a second through hole, 20 is a box door, 201 is a wiring duct, 301 is a master control module, 3021 is a display screen, 3022 is an electric meter, 3031 is a surge protector, 3041 is an emergency stop button, 3042 is a switch-on / off button, 305 is an indicator light, 401 is a molded case circuit breaker, 402 is a current transformer, 403 is a switching power supply, 404 is a miniature circuit breaker, 405 is an intermediate relay, 501 is a terminal block, and 502 is a switching terminal. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0030] It should be understood that, when used in the specification and the appended claims, the terms “comprise” and “include” indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0031] It should also be understood that the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and the appended claims of the present application, the singular forms “a”, “an” and “the” are intended to include the plural forms, unless the context clearly indicates otherwise.

[0032] It should be further understood that the term “and / or” used in the specification and the appended claims of the present application refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0033] In addition, in the present application, unless otherwise explicitly provided in the embodiments or limited, the terms "mounting", "connecting", "connecting" and "fixing" appearing in the embodiments should be understood in a broad sense. For example, the connection can be a fixed connection, or a detachable connection, or integrated, and can be understood as a mechanical connection, an electrical connection, etc. Of course, it can also be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two elements, or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific implementation.

[0034] As mentioned in the background art, the power distribution, busbar and fire-fighting layout of the energy storage cabinet have poor technical problems. To solve this technical problem, the present application provides a master control box and an energy storage cabinet.

[0035] Please refer to Figure 1 , Figure 1 The structure diagram of the master control box provided by the embodiment of the present application is shown in the figure. As Figure 1 shown, the present application provides a master control box, which comprises:

[0036] a box body 10 provided with an open cavity;

[0037] a box door 20 rotatably connected with the box body 10 and closing the cavity at the opening;

[0038] Among them, the cavity is provided with a power distribution module and a master control module 301 of a battery management system, the power distribution module is electrically connected with the battery management system, and is used for distributing power supply for the battery management system.

[0039] In the embodiment, the master control box comprises a box body 10 and a box door 20 rotatably connected with the box body 10. The box body 10 is provided with an open cavity, and various electrical modules can be installed in the cavity. At the same time, the cavity can be provided with a power distribution module and a master control module 301 of a battery management system. The power distribution module can be electrically connected with high-voltage components through busbars and wire harnesses.

[0040] The battery management system (BMS) mainly includes functions such as monitoring the state of the battery, controlling the charging process, distributing power, and protecting the battery. The battery management system is composed of a master control module 301 and a slave control module, wherein the master control module 301 is responsible for functions such as total voltage acquisition, total current acquisition, internal and external communication, fault recording and decision making; the slave control module is usually responsible for functions such as single cell voltage acquisition, temperature acquisition and balancing.

[0041] The master control box provided by the application not only has efficient power distribution and management functions, but also improves the reliability and safety of the battery management system through modular design, and is suitable for various occasions requiring high-reliability power management and monitoring.

[0042] The master control box provided by the application includes a box body 10 and a box door 20, the box body 10 is provided with an open cavity, the box door 20 is rotationally connected with the box body 10 and closes the cavity at the opening, the cavity is provided with a power distribution module and a master control module 301 of a battery management system, the power distribution module is electrically connected with the battery management system and is used for distributing power for the battery management system, so as to provide auxiliary power for the battery management system, thereby realizing the integration of power distribution and control in the master control box, without integrating the master control of the battery management system in the busbar cabinet, reducing the volume of the busbar cabinet, thereby reducing the occupied space of the busbar cabinet in the energy storage cabinet, and optimizing the layout of power distribution, busbar and fire fighting of the energy storage cabinet.

[0043] In some embodiments, the power distribution module is an alternating current power distribution module.

[0044] In the embodiment, the alternating current power distribution module can distribute the alternating current power provided from outside to the battery management system, so as to provide auxiliary power for the battery management system, thereby realizing effective distribution and management of power and ensuring stable operation and high efficiency of the battery management system.

[0045] It should be noted that the power distribution module can also be a direct current power distribution module, which can also be used to distribute power for the battery management system to provide auxiliary power for the battery management system.

[0046] In addition, the power distribution module can also simultaneously include an alternating current power distribution module and a direct current power distribution module, and the alternating current power distribution module and the direct current power distribution module can be installed in isolation in the master control box, so as to realize alternating current and direct current isolation and improve the safety of the battery management system.

[0047] In some embodiments, as shown in Figure 1 and Figure 5 the master control module 301 is arranged on a first surface of the box door 20 close to the opening.

[0048] In the embodiment, the master control module 301 can be arranged on the inner wall of the box door 20, i.e. on the first surface. When the box door 20 is closed, the master control module 301 is in the cavity of the box body 10. The application arranges the master control module 301 on the first surface, which can reduce the occupied area of the inner wall of the box body 10, thereby providing more space for other components, greatly improving the space utilization of the master control box.

[0049] Further, in some embodiments, as shown in Figure 1 and Figure 5As shown, the first surface is further provided with a wiring conduit 201 surrounding the master control module 301.

[0050] In the embodiment, the inner side of the box door 20 is provided with the wiring conduit 201 surrounding the master control module 301, so that the master control module 301 can be conveniently electrically connected with other components. The wiring conduit 201 is provided with a plurality of wiring holes, through which the wire harness can pass and be electrically connected with other components through the wiring conduit 201.

[0051] In some embodiments, at least one of the display module, the protection module, the operation module and the status module of the battery management system is arranged on the second surface of the box door 20 away from the opening.

[0052] In the embodiment, the second surface is the outer surface of the box door 20, which corresponds to the first surface. The display module, the operation module and the status module of the battery management system are arranged on the box door 20 and installed through the box door 20.

[0053] Specifically, as shown in Figure 1 , Figure 3 and Figure 5 , the display module can be a display screen 3021, which can be a display control screen of the battery management system. The operation module can be an emergency stop button 3041 and a split closing button 3042, respectively. The status module can be an indicator light 305. In addition, a power meter 3022 can also be arranged on the box door 20. The display control screen of the battery management system monitors and displays the state information of the battery in real time, has a user-friendly interactive interface and multiple protection functions, and ensures the safe and efficient management of the battery. The emergency stop button 3041 is a device for quickly stopping the battery management system in an emergency. The split closing button 3042 is used to control the opening and closing of the circuit in the battery management system and is widely used in various high-voltage and low-voltage circuit breakers. The main function of the split closing button 3042 is to realize the closing (closing) and opening (opening) of the circuit breaker by manual or electric means. The indicator light 305 can display whether the battery management system is running and whether the running is normal.

[0054] In some embodiments, the power distribution module includes a line switch, a mutual inductor and a switching power supply 403. The box body 10 is provided with at least one line hole 101 at the bottom, the line switch is close to the line hole 101, one end of the mutual inductor is electrically connected with the line switch, and the other end of the mutual inductor is electrically connected with the switching power supply 403.

[0055] In the embodiment, the line switch can be an alternating current line circuit breaker, the mutual inductor can be a current transformer 402, and the switching power supply 403 can convert alternating current power into direct current power to provide auxiliary power for the battery management system. Specifically, as shown in Figure 1 andFigure 4 As shown in the drawings, the AC incoming line circuit breaker can be a molded case circuit breaker 401, and a terminal strip 501 is further arranged in the cavity, which is arranged at the upper end of the main control box and close to the top of the main control box.

[0056] In some embodiments, the power distribution module further comprises a DC switch and a time delay switch; wherein the DC switch is electrically connected to the DC output end of the switching power supply 403, and the time delay switch is electrically connected to the main control module 301 and the switching power supply 403 respectively.

[0057] In the embodiment, the DC switch can be a loop switch, and the time delay switch can be used to delay the on-off of the battery management system. Specifically, as shown in Figure 1 and Figure 4 The loop switch can be a miniature circuit breaker 404, and the time delay switch can be an intermediate relay 405. Meanwhile, the inside of the box body 10 is further provided with a surge protector 3031.

[0058] In some embodiments, as shown in Figure 1 and Figure 4 The cavity is further provided with a wiring groove 103, which is close to the two sides of the box body 10 respectively.

[0059] In the embodiment, the inside space of the box body 10 is provided with a plurality of wiring grooves 103, two of which extend from the top to the bottom of the main control box, and the upper and lower sides of the surge protector are both provided with a wiring groove 103. Above the wiring groove 103 on the upper side is arranged a miniature circuit breaker 404, and below the wiring groove 103 on the lower side is arranged a miniature circuit breaker 404.

[0060] In some embodiments, as shown in Figure 2 and Figure 5 The third surface of the box body 10 away from the cavity is provided with a mounting member 104.

[0061] In the embodiment, the mounting member 104 comprises a bearing part 1041 and a mounting part 1042, the bearing part 1041 is provided with a first through hole 1043, and the mounting part 1042 is provided with a second through hole 1044. After bearing the main control box, a screw can pass through the first through hole 1043 to fix the mounting member 104 and the main control box; after contacting with the energy storage cabinet, a screw can also pass through the second through hole 1044 to fix the main control box on the energy storage cabinet.

[0062] In addition, as shown in Figure 2As shown, the left and right sides of the box 10 can be provided with a plurality of heat dissipation holes 102 to facilitate heat dissipation of the components in the main control box. Meanwhile, the bottom of the box 10 is also provided with a plurality of wire inlet holes 101, and the wire harness can pass through the wire inlet holes 101 to reach the wire groove 103 to realize the electrical connection of the components in the main control box.

[0063] In some embodiments, the application also provides an energy storage cabinet, which comprises the main control box mentioned in the above embodiments.

[0064] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A master control box, characterized by, The utility model relates to a battery management system, and more particularly to a battery management system cabinet. The battery management system cabinet comprises: a cabinet body provided with an open cavity; a cabinet door rotatably connected with the cabinet body and closing the cavity at the opening; 2. The master box of claim 1, wherein, wherein the cavity is provided with a power distribution module and a master control module of a battery management system, the power distribution module is electrically connected with the battery management system and is used for distributing power supply for the battery management system.

3. The master box of claim 1, wherein, The power distribution module is an alternating current power distribution module.

4. The master box of claim 3, wherein, The master control module is arranged on a first surface of the cabinet door close to the opening.

5. The master box of claim 1, wherein, The first surface is further provided with a wiring channel surrounding the master control module.

6. The master box of claim 1, wherein, At least one of a display module, an operation module and a status module of the battery management system is arranged on a second surface of the cabinet door away from the opening. The power distribution module comprises a line-in switch, a mutual inductor and a switching power supply; 7. The master box of claim 6, wherein, wherein the cabinet body is provided with at least one line-in hole, the line-in switch is close to the line-in hole, one end of the mutual inductor is electrically connected with the line-in switch, and the other end of the mutual inductor is electrically connected with the switching power supply. The power distribution module further comprises a direct current switch and a time delay switch; 8. The master box of any one of claims 1-7, wherein, wherein the direct current switch is electrically connected with a direct current output end of the switching power supply, and the time delay switch is respectively electrically connected with the master control module and the switching power supply.

9. The master box of any one of claims 1-7, wherein, The cavity is further provided with a wiring groove, and the wiring groove is close to two sides of the cabinet body respectively.

10. An energy storage cabinet characterized by, A third surface of the cabinet body away from the cavity is provided with a mounting member. The utility model further relates to a battery management system cabinet comprising the master control cabinet according to any one of claims 1-9.

Images