Power distribution cabinet and energy storage vehicle

Abstract

The utility model provides a power distribution cabinet and an energy storage vehicle. The power distribution cabinet comprises a cabinet body, a first busbar, a busbar assembly and a change-over switch device. The first busbar, the busbar assembly and the change-over switch device are fixedly connected with the cabinet body; the first busbar is provided with a first wiring terminal and a second wiring terminal, the first wiring terminal is used for being connected with an afflux cable, the second wiring terminal is used for being electrically connected with a load, the busbar assembly can be electrically connected or disconnected with the first busbar, the input end and the output end of the change-over switch device are both electrically connected with the busbar assembly, and the busbar assembly is used for being connected with a power grid. Switching between the grid-connected state and the off-grid state is achieved through working mode switching, the switching device is fixedly connected to the cabinet body instead of being independently arranged, the space utilization rate is increased, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of power supply equipment, and specifically relates to a power distribution cabinet and an energy storage vehicle. Background Art

[0002] Mobile power supply vehicles, also known as mobile energy storage vehicles, have the advantages of lower noise and higher economic benefits compared to diesel-generated power supply vehicles, and have been widely used in the field of new energy technology.

[0003] The weight of energy storage vehicle components has a significant impact on the overall vehicle system capacity. To effectively save space within the vehicle, reduce the weight of the energy storage vehicle, and increase the overall vehicle capacity, a distributed PCS (Power Conversion System) convergence solution is usually adopted. Compared with a centralized PCS, it has high space utilization and is lighter. On-grid and off-grid switching is the process of switching the battery energy storage system between on-grid and off-grid states, that is, the battery energy storage system switches from being connected to the grid to operating independently to supply power to the load. This switching mechanism ensures that when the grid fails or the battery energy storage system needs to operate independently, the system can smoothly transition to off-grid mode and switch back to on-grid mode to ensure the continuity and stability of the power supply.

[0004] Whether it is a centralized PCS or a distributed PCS solution, it is usually necessary to separately use an ATS (Automatic Transfer Switching) cabinet or an STS (Static Transfer Switch) cabinet to achieve on-grid and off-grid switching, which will reduce space utilization and increase operation and maintenance costs. Utility Model Content

[0005] The purpose of the embodiments of the present utility model is to provide a power distribution cabinet and an energy storage vehicle, which can solve the problem in the related art of using only ATS cabinets or STS cabinets, which reduces space utilization and increases operation and maintenance costs.

[0006] In order to solve the above technical problems, the utility model is achieved as follows:

[0007] In a first aspect, an embodiment of the present utility model provides a system including a cabinet, a first busbar, a busbar assembly and a transfer switch device;

[0008] The first busbar, the busbar assembly and the transfer switch device are all fixedly connected to the cabinet;

[0009] The first busbar is provided with a first terminal and a second terminal. The first terminal is used for connecting the incoming cable, and the second terminal is used for electrically connecting the load. The busbar assembly can be electrically connected to or disconnected from the first busbar. The input end and the output end of the switching device are both electrically connected to the busbar assembly, and the busbar assembly is used for accessing the power grid.

[0010] Optionally, the busbar assembly includes a first busbar and a second busbar;

[0011] The input end of the first busbar can be electrically connected to or disconnected from the first busbar. The output end of the first busbar is electrically connected to the input end of the switching device. The input end of the second busbar is electrically connected to the output end of the switching device, and the output end of the second busbar is used for accessing the power grid.

[0012] Optionally, the power distribution cabinet further includes a current transformer;

[0013] The current transformer is arranged on the first busbar and is used for detecting the magnitude of the current on the first busbar.

[0014] Optionally, the power distribution cabinet further includes a circuit breaker;

[0015] The circuit breaker is fixedly connected to the cabinet body. The circuit breaker is electrically connected to the first terminal, and the first busbar is connected to the incoming cable through the circuit breaker.

[0016] Optionally, the number of the circuit breakers is multiple. Each circuit breaker is connected to one incoming cable, and each first terminal is correspondingly arranged with one circuit breaker.

[0017] Optionally, the power distribution cabinet further includes an output busbar;

[0018] The output busbar is electrically connected to the output end of the second busbar, and the second busbar accesses the power grid through the output busbar.

[0019] Optionally, the power distribution cabinet further includes a second busbar;

[0020] The second busbar is fixedly connected to the cabinet body. The input end of the second busbar is used for accessing the neutral line, and the first terminal is used for accessing the live wire.

[0021] Optionally, the power distribution cabinet further includes a controller;

[0022] The controller is fixedly connected to the cabinet body, and the controller is used for controlling the operation of the energy storage converter.

[0023] Optionally, the power distribution cabinet further includes a display screen;

[0024] The display screen is fixedly connected to the cabinet body, and the display screen is electrically connected to the controller.

[0025] Optionally, the power distribution cabinet further includes an auxiliary power supply module;

[0026] The auxiliary power supply module is fixedly connected to the cabinet body, and the auxiliary power supply module is used to supply power to electrical appliances on the vehicle.

[0027] Optionally, the power distribution cabinet further includes a backup power supply component;

[0028] The backup power supply component is fixedly connected to the cabinet body.

[0029] Optionally, the number of the first busbars is three, and the three first busbars are distributed along a first direction, and the first direction is along the horizontal direction or inclined relative to the horizontal direction.

[0030] Optionally, the busbar assembly is a flexible busbar assembly.

[0031] In a second aspect, an energy storage vehicle provided by an embodiment of the present invention includes the power distribution cabinet according to any one of the above.

[0032] In the power distribution cabinet provided by the embodiment of the present invention, a first busbar, a busbar assembly and a switching device are fixedly connected to the cabinet body. The first wiring terminal on the first busbar is always connected to the cable introduced by the battery through the PCS. The second wiring terminal on the first busbar can be used to connect to a load. The busbar assembly can be electrically connected to or disconnected from the first busbar. The input end and the output end of the switching device are both electrically connected to the busbar assembly. The alternating current passing through the busbar assembly can pass through the switching device and then flow through the busbar assembly to be connected to the power grid. The current is introduced into the first busbar through the first wiring terminal. In the first working mode: the busbar assembly is disconnected from the first busbar, and the second wiring terminal is connected to the load through a cable, that is, the battery energy storage system supplies power to the load through the power distribution cabinet, and at this time it is in an off-grid state; in the second working mode: the connection between the second wiring terminal and the load is disconnected, the busbar assembly is connected to the first busbar, and the battery energy storage system is connected to the power grid through the power distribution cabinet, and at this time it is in a grid-connected state. Therefore, through the switching of the working mode, the switching between the on-grid and off-grid states is realized, and the key component for realizing the adjustment of the grid-connected state, the switching device, is fixedly connected to the cabinet body instead of being set separately, which improves the space utilization rate and reduces the operation and maintenance cost.

[0033] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly, it can be implemented according to the content of the description. And in order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are specifically given below. Description of the Drawings

[0034] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0035] Figure 1 FIG. 5 is a schematic structural view of the power distribution cabinet provided by an embodiment of the present utility model in a certain direction;

[0036] Figure 2 FIG. 9 is a schematic structural view of the power distribution cabinet provided by an embodiment of the present utility model in another direction;

[0037] Figure 3 FIG. 13 is a schematic view of the internal structure of the power distribution cabinet provided by an embodiment of the present utility model in a certain direction;

[0038] Figure 4 FIG. 17 is a schematic view of the internal structure of the power distribution cabinet provided by an embodiment of the present utility model in another direction.

[0039] Description of reference numerals:

[0040] 1 - cabinet body, 21 - first busbar, 211 - first terminal, 212 - second terminal, 213 - busbar main body, 22 - second busbar, 3 - busbar assembly, 31 - first busbar, 32 - second busbar, 4 - change - over switch device, 5 - current transformer, 6 - circuit breaker, 11 - circuit breaker mounting plate, 7 - output busbar, 81 - controller, 82 - display screen, 91 - auxiliary power supply module, 92 - standby power supply assembly, 921 - uninterruptible power supply device, 922 - UPS standby battery. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0042] The terms "first", "second", etc. in the description and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0043] The following will, in conjunction with the accompanying drawings, elaborate in detail on the power distribution cabinet and energy storage vehicle provided by the embodiments of the present utility model through specific embodiments and their application scenarios.

[0044] Referring to Figures 1 to 3 , an embodiment of the present utility model provides a power distribution cabinet, which includes a cabinet body 1, a first busbar 21, a busbar assembly 3, and a transfer switch device 4; the first busbar 21, the busbar assembly 3, and the transfer switch device 4 are all fixedly connected to the cabinet body 1; a first connection terminal 211 and a second connection terminal 212 are arranged on the first busbar 21, the first connection terminal 211 is used for connecting the incoming cable, the second connection terminal 212 is used for electrically connecting the load, the busbar assembly 3 can be electrically connected to or disconnected from the first busbar 21, the input end and the output end of the transfer switch device 4 are both electrically connected to the busbar assembly 3, and the busbar assembly 3 is used for accessing the power grid.

[0045] Specifically, as Figures 1 to 3 shown, the cabinet body 1 has a supporting and installation function. The cabinet body 1 is a frame structure formed by overlapping multiple cross beams and longitudinal beams, which is convenient for the maintenance, loading, and unloading of electrical components. The first busbar 21, the busbar assembly 3, and the transfer switch device 4 are all fixedly connected to the cabinet body 1 and can be installed inside or outside the cabinet body 1. To save space, the above electrical components are all arranged inside the cabinet body 1, and the specific installation positions can be flexibly adjusted. A first connection terminal 211 and a second connection terminal 212 are arranged on the busbar main body 213. The number of the first connection terminals 211 is multiple, and each first connection terminal 211 corresponds to accessing one incoming cable. According to the principle of maximizing capacity, usually eight battery clusters are arranged on the mobile energy storage vehicle, and the battery clusters are connected to the distributed PCS to output eight AC power cables. Therefore, eight first connection terminals 211 are arranged on each first busbar 21. The second connection terminal 212 can be connected to the load through a cable. The number of the second connection terminals 212 on each first busbar 21 is multiple, which can avoid the cable connecting the load from being too thick and easily causing overload. In this embodiment, three second connection terminals 212 are arranged on each first busbar 21. The busbar assembly 3 has two states. When the busbar assembly 3 is connected to the first busbar 21, the current accesses the power grid via the transfer switch device 4 and the busbar assembly 3; when the busbar assembly 3 is disconnected from the first busbar 21, it is in an off-grid state. The transfer switch device 4 includes but is not limited to ATS or STS. It is a key component for circuit regulation in the battery energy storage system in the grid-connected state. The transfer switch device 4 has functions of high and low voltage and overcurrent protection, can monitor the fault conditions in the power grid or the battery energy storage system, and can quickly switch to the standby power supply in case of a fault to protect the safe and stable operation of the battery energy storage system. The input end and the output end of the transfer switch device 4 are both connected to the busbar assembly 3, that is, the alternating current flowing into the busbar assembly 3 can pass through the transfer switch device 4 and then flow through the busbar assembly 3 to access the power grid.

[0046] The current output by the battery cluster is introduced into the first busbar 21 through the first terminal 211. In the first working mode: the busbar assembly 3 is disconnected from the first busbar 21, and the second terminal 212 is connected to the load through a cable, that is, the battery energy storage system supplies power to the load through the power distribution cabinet, and at this time it is in the off-grid state; in the second working mode: the connection between the second terminal 212 and the load is disconnected, the busbar assembly 3 is connected to the first busbar 21, and the alternating current flowing into the busbar assembly 3 passes through the switching device 4 and then flows through the busbar assembly 3 to access the power grid, that is, the battery energy storage system is connected to the power grid through the power distribution cabinet, and at this time it is in the grid-connected state. It should be noted that the switching between the two working modes can be achieved by a combination of automatic system control and manual operation.

[0047] By using the power distribution cabinet provided by the embodiment of the present invention, the switching between the grid-connected and off-grid states is realized through the switching between the two working modes, and the switching device is fixedly connected to the cabinet body, with high integration degree, rather than being set separately, reducing the occupied space of the device, improving the space utilization rate, and reducing the operation and maintenance cost.

[0048] Optionally, referring to Figure 3 and Figure 4 , the busbar assembly 3 includes a first busbar 31 and a second busbar 32; the input end of the first busbar 31 can be electrically connected or disconnected from the first busbar 21, the output end of the first busbar 31 is electrically connected to the input end of the switching device 4, the input end of the second busbar 32 is electrically connected to the output end of the switching device 4, and the output end of the second busbar 32 is used to access the power grid.

[0049] Specifically, as shown in Figure 3 and Figure 4 , the busbar assembly 3 includes a first busbar 31 and a second busbar 32. Each first busbar 31 corresponds to a first busbar 21, and three groups of second busbars 32 are connected to the output end of the switching device 4. The input end of the first busbar 31 can be connected or disconnected from the first busbar 21, the output end of the first busbar 31 is connected to the input end of the switching device 4, the input end of the second busbar 32 is connected to the output end of the switching device 4, and the output end of the second busbar 32 accesses the power grid. The current flowing into the first busbar 21 enters the switching device 4 through the first busbar 31 and is then output to the power grid through the second busbar 32. That is, through the arrangement and connection form of the first busbar 31 and the second busbar 32, both the input end and the output end of the switching device 4 are connected to the busbar assembly 3, realizing the circuit adjustment function of the switching device 4 in the grid-connected state. That is, the structural form of the busbar assembly 3 is flexible and can be adjusted according to the installation positions of the first busbar 21 and the switching device 4.

[0050] Optionally, referring toFigure 3 The power distribution cabinet further includes a current transformer 5; the current transformer 5 is disposed on the first bus bar 21 for detecting the magnitude of the current on the first bus bar 21.

[0051] Specifically, as Figure 3 shown, the current transformer 5 is disposed on the first bus bar 21. A current transformer is an instrument that measures current by converting a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. The current transformer 5 is used in conjunction with the transfer switch device 4 to monitor the fault conditions in the power grid or battery energy storage system by detecting the amplitude, frequency, and phase difference of the alternating current, enabling the transfer switch device 4 to perform corresponding adjustment actions and quickly switch to the backup power supply in case of a fault.

[0052] Optionally, referring to Figure 1 and Figure 4 shown, the power distribution cabinet further includes a circuit breaker 6; the circuit breaker 6 is fixedly connected to the cabinet body 1, the circuit breaker 6 is electrically connected to the first terminal 211, and the first bus bar 21 is connected to the incoming cable through the circuit breaker 6.

[0053] Optionally, referring to Figure 1 and Figure 4 shown, the number of the circuit breakers 6 is multiple, each circuit breaker 6 is connected to one incoming cable, and each first terminal 211 is correspondingly arranged with one circuit breaker 6.

[0054] Specifically, as Figure 1 and Figure 4 shown, the circuit breaker 6 is fixedly connected to the inside of the cabinet body 1 through a circuit breaker mounting plate 11, and the circuit breaker 6 is connected to the first terminal 211 through a cable. The current output by the battery cluster first passes through the circuit breaker 6 and then converges into the first bus bar 21. The circuit breaker 6 performs overcurrent protection on the current to avoid safety accidents. The number of the circuit breakers 6 is multiple, and the quantity depends on the number of the output cables of the PCS. In this embodiment, the battery cluster is connected to the distributed PCS to output eight-way alternating current, so eight circuit breakers 6 are correspondingly arranged. The eight circuit breakers 6 are divided into two rows, with four in each row. The two rows of circuit breakers 6 are distributed vertically and staggered up and down, facilitating wiring and operation and maintenance. Each circuit breaker 6 is correspondingly arranged with one first terminal 211, and the circuit breaker 6 and the first terminal 211 are connected through a cable.

[0055] Optionally, referring to Figure 2 and Figure 3 shown, the power distribution cabinet further includes an output bus bar 7; the output bus bar 7 is electrically connected to the output end of the second bus bar 32, and the second bus bar 32 accesses the power grid through the output bus bar 7.

[0056] Specifically, as Figure 2and Figure 3 As shown, the output busbar 7 is fixed in the cabinet 1. The output busbar 7 is connected to the output end of the second busbar 32, and the output busbar 7 is connected to the power grid through a cable. The output busbar 7 can be made of copper or aluminum busbars. In this embodiment, a copper output busbar is used.

[0057] Optionally, referring to Figure 2 , the power distribution cabinet further includes a second busbar 22; the second busbar 22 is fixedly connected to the cabinet 1. The input end of the second busbar 22 is used to connect to the neutral line, and the first terminal 211 is used to connect to the live wire.

[0058] Specifically, as shown in Figure 2 , the first terminal 211 of the first busbar 21 is used to connect to the live wire, and the second busbar 22 is fixed in the cabinet 1 for connecting to the neutral line. Different from the certain potential difference between the three-phase live wires, since the neutral line usually has no potential difference, the neutral line output by the PCS does not need to pass through the circuit regulation of the change-over switch device 4 and is directly output to the load or connected to the power grid on the second busbar 22.

[0059] Optionally, referring to Figure 1 , the power distribution cabinet further includes a controller 81; the controller 81 is fixedly connected to the cabinet 1, and the controller 81 is used to control the operation of the energy storage converter.

[0060] Specifically, as shown in Figure , the controller 81 is fixed in the cabinet 1. The controller 81 is electrically connected to the PCS and is used to control and coordinate the operation of the distributed PCS.

[0061] Optionally, referring to ​ , the power distribution cabinet further includes a display screen 82; the display screen 82 is fixedly connected to the cabinet 1, and the display screen 82 is electrically connected to the controller 81.

[0062] Specifically, as shown in ​ , the display screen 82 is fixed on the side of the cabinet 1. The display screen 82 is electrically connected to relevant electrical components including but not limited to the controller 81, the change-over switch device 4, and the current transformer 5 to display data such as the grid-connected and off-grid switching state and circuit regulation parameters.

[0063] Optionally, referring to ​ , the power distribution cabinet further includes an auxiliary power supply module 91; the auxiliary power supply module 91 is fixedly connected to the cabinet 1, and the auxiliary power supply module 91 is used to supply power to the electrical appliances on the vehicle.

[0064] Specifically, as shown in ​As shown, the auxiliary power supply module 91 is fixed inside the cabinet 1 and supplies power to various electrical appliances on the vehicle, including but not limited to photo devices, monitoring devices, and cooling fans.

[0065] Optionally, referring to ​ , the power distribution cabinet further includes a backup power supply component 92; the backup power supply component 92 is fixedly connected to the cabinet 1.

[0066] Specifically, as ​ shown, the backup power supply component 92 is fixed inside the cabinet 1. The backup power supply component 92 includes an uninterruptible power supply device 921 (Uninterruptible Power Supply, UPS) and a UPS backup battery 922, which are used to supply normal power to the load when the power grid or energy storage system fails.

[0067] Optionally, referring to ​ and ​ , the number of the first busbars 21 is three, and the three first busbars 21 are distributed along a first direction, and the first direction is along the horizontal direction or inclined relative to the horizontal direction.

[0068] Specifically, as ​ and ​ shown, the number of the first busbars 21 is set to three. The three first busbars 21 are respectively used for the inflow of three-phase alternating current. The three first busbars 21 are staggeredly distributed along the first direction and can be along the horizontal direction or inclined to the horizontal direction. In this embodiment, three first busbars 21 are arranged along the horizontal direction, which is convenient for wiring and disassembly and maintenance.

[0069] Optionally, referring to ​ and ​ , the busbar assembly 3 is a flexible busbar assembly.

[0070] Specifically, as ​ and ​ shown, the busbar assembly 3 is a flexible busbar assembly, and the busbar assembly 3 is soft-connected to the first busbar 21, the transfer switch device 4, and the output busbar 7. The flexible busbar can adjust its own shape to adapt to the arrangement and installation positions of the first busbar 21 and the transfer switch device 4, absorb processing errors, facilitate installation, effectively save space. In addition, the shape of the soft connection can also reduce the vibration influence during the long-term operation of the energy storage vehicle.

[0071] The embodiment of the present invention also provides an energy storage vehicle, including the power distribution cabinet in the above embodiment. The energy storage vehicle loaded with the power distribution cabinet in this embodiment realizes the switching between grid-connected and off-grid states through the switching of the working mode, and on this basis, improves the space utilization rate and reduces the operation and maintenance cost.

[0072] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including such element.

[0073] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the spirit of the present utility model and the scope protected by the claims, and all of them fall within the protection scope of the present utility model.

Claims

1. A power distribution cabinet, characterized in that, It includes a cabinet body (1), a first busbar (21), a busbar assembly (3) and a changeover switch device (4); The first busbar (21), the busbar assembly (3) and the changeover switch device (4) are all fixedly connected to the cabinet body (1); The first busbar (21) is provided with a first wiring terminal (211) and a second wiring terminal (212). The first wiring terminal (211) is used for connecting the incoming cable, and the second wiring terminal (212) is used for electrically connecting the load. The busbar assembly (3) can be electrically connected to or disconnected from the first busbar (21). The input end and the output end of the changeover switch device (4) are both electrically connected to the busbar assembly (3). The busbar assembly (3) is used for accessing the power grid.

2. The power distribution cabinet according to claim 1, characterized in that, The busbar assembly (3) includes a first busbar (31) and a second busbar (32); The input end of the first busbar (31) can be electrically connected to or disconnected from the first busbar (21). The output end of the first busbar (31) is electrically connected to the input end of the changeover switch device (4). The input end of the second busbar (32) is electrically connected to the output end of the changeover switch device (4). The output end of the second busbar (32) is used for accessing the power grid.

3. The power distribution cabinet according to claim 1, characterized in that, The power distribution cabinet further includes a current transformer (5); The current transformer (5) is arranged on the first busbar (21) and is used for detecting the magnitude of the current on the first busbar (21).

4. The power distribution cabinet according to claim 1, wherein The power distribution cabinet further includes a circuit breaker (6); The circuit breaker (6) is fixedly connected to the cabinet body (1). The circuit breaker (6) is electrically connected to the first wiring terminal (211). The first busbar (21) is connected to the incoming cable through the circuit breaker (6).

5. The power distribution cabinet according to claim 4, characterized in that, The number of the circuit breakers (6) is multiple. Each circuit breaker (6) is connected to one incoming cable, and each first wiring terminal (211) is correspondingly arranged with one circuit breaker (6).

6. The power distribution cabinet according to claim 2, wherein, The power distribution cabinet further includes an output busbar (7); The output busbar (7) is electrically connected to the output end of the second busbar (32). The second busbar (32) accesses the power grid through the output busbar (7).

7. The power distribution cabinet according to claim 1, characterized in that, The power distribution cabinet further includes a second busbar (22); The second busbar (22) is fixedly connected to the cabinet body (1). The input end of the second busbar (22) is used for accessing the neutral line, and the first wiring terminal (211) is used for accessing the live wire.

8. The power distribution cabinet according to claim 1, characterized in that The power distribution cabinet further includes a controller (81); The controller (81) is fixedly connected to the cabinet body (1). The controller (81) is used for controlling the operation of the energy storage converter.

9. The power distribution cabinet according to claim 8, wherein, The power distribution cabinet further includes a display screen (82); The display screen (82) is fixedly connected to the cabinet body (1). The display screen (82) is electrically connected to the controller (81).

10. The power distribution cabinet according to claim 1, characterized in that, The power distribution cabinet further includes an auxiliary power supply module (91); The auxiliary power supply module (91) is fixedly connected to the cabinet body (1). The auxiliary power supply module (91) is used for supplying power to the electrical appliances on the vehicle.

11. The power distribution cabinet according to claim 1, characterized in that, The power distribution cabinet further includes a backup power supply assembly (92); The standby power supply component (92) is fixedly connected to the cabinet body (1).

12. The power distribution cabinet according to any one of claims 1 to 11, characterized in that, The number of the first busbars (21) is three, and the three first busbars (21) are distributed along a first direction, and the first direction is along the horizontal direction or inclined relative to the horizontal direction.

13. The power distribution cabinet according to any one of claims 1 to 11, characterized in that, The busbar assembly (3) is a flexible busbar assembly.

14. A energy storage vehicle, characterized in that, It includes the power distribution cabinet according to any one of claims 1 to 13.

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