Bus bar cabinet and energy storage device

Abstract

To provide a bus bar cabinet which can be easily maintained while being easily operated when it is required in an exchange of a device.SOLUTION: The present invention provides a bus bar cabinet containing: a cabinet body; a power distribution unit to be provided into the cabinet body; a control unit; and a bus bar unit, and an open and a first housing space, a second housing space, and a third housing space that are arranged in order from an upper side to a lower side in a vertical direction are formed in the cabinet body. The power distribution unit is provided to the first housing space, the open is communicated to the first housing space, the second housing space, and the third housing space. The control unit is provided to the second housing space, and the bus bar unit is provided to the third housing space.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This application claims the priority of a Chinese patent application with the application number 2023236665407, which was filed with the Chinese Patent Office on December 29, 2023. All the contents of the above application are incorporated into this application by reference.

[0002] This application relates to the technical field of energy storage, and specifically to a busbar cabinet and an energy storage device.

Background Art

[0003] The busbar cabinet is used to allocate electrical energy, and a plurality of types of control devices are provided therein. These devices mainly constitute a busbar circuit, a control circuit, and a power distribution circuit in the busbar cabinet. In related technologies, the control devices are generally integrated in one cabinet body.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the control devices, especially the communication device and the power supply device, are integrated in one busbar cabinet, the reliability of power supply and communication is reduced. At the same time, it becomes difficult for operators to repair each functional circuit. For example, when it is necessary to replace a certain device, it is difficult to operate, and the maintenance of the busbar cabinet becomes difficult.

Means for Solving the Problems

[0005] According to the first aspect, the present application provides a busbar cabinet including a cabinet body, a power distribution unit, a control unit, and a busbar unit provided in the cabinet body. An opening, a first accommodation space, a second accommodation space, and a third accommodation space are formed in the cabinet body in this order from top to bottom in the vertical direction. The opening communicates with the first accommodation space, the second accommodation space, and the third accommodation space respectively. The power distribution unit is provided in the first accommodation space, the control unit is provided in the second accommodation space, and the busbar unit is provided in the third accommodation space.

[0006] According to the second aspect, the present application provides an energy storage device including a plurality of battery clusters and the busbar cabinet according to the present application. The plurality of battery clusters are electrically connected to the busbar unit respectively.

Advantages of the Invention

[0007] The beneficial effects of the busbar cabinet and the energy storage device according to the present application are as follows. That is, the busbar cabinet includes a cabinet body, a power distribution unit, a control unit, and a busbar unit provided in the cabinet body. A first accommodation space, a second accommodation space, and a third accommodation space are formed in the cabinet body in this order from top to bottom in the vertical direction. The power distribution unit is provided in the first accommodation space, the control unit is provided in the second accommodation space, and the busbar unit is provided in the third accommodation space. In the busbar cabinet of the present application, the spatial arrangement is clear. By distributing each functional unit to a different accommodation space, each functional unit does not interfere with each other, and the reliability is high. In addition, by providing the power distribution unit in the first accommodation space at the upper part, it is advantageous for user operation. By providing the busbar unit in the third accommodation space at the lower part, it is advantageous for connection to the outside and more advantageous for maintenance.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Mode for Carrying Out the Invention

[0009] Referring to FIGS. 1-4, the busbar cabinet 100 of this embodiment includes a cabinet body 11. In the cabinet body 11, an opening 110 and a first accommodation space 111, a second accommodation space 112, and a third accommodation space 113 arranged in order from top to bottom in the vertical direction are formed. The opening 110 communicates with the first accommodation space 111, the second accommodation space 112, and the third accommodation space 113 respectively, and each accommodation space is used for placing different functional members.

[0010] A power distribution unit 12, a control unit 13, and a busbar unit 14 are provided in the cabinet body 11. The power distribution unit 12 is provided in the first accommodation space 111, the control unit 13 is provided in the second accommodation space 112, and the busbar unit 14 is provided in the third accommodation space 113. By separating and placing different functional units according to the division of the accommodation space, interference between the functional units is avoided, the reliability of the functional units is improved, and it is also advantageous for maintenance.

[0011] In addition, in the busbar cabinet, the power distribution unit 12 includes power distribution elements 121 such as a circuit breaker, a relay, and an AC / DC module. It is used to distribute the collected electrical quantity and is frequently operated by the user, so it is placed in the upper first accommodation space 111. On the other hand, the busbar unit 14 requires less operation by the user and mainly consists of exposed copper bars 141, so it has a high safety risk and is placed in the lower third accommodation space 113, that is, near the ground.

[0012] In this embodiment, a storage space is formed in the cabinet body 11. In the storage space, first partition plates 151 and second partition plates 152 are arranged vertically to partition the storage space to form a first accommodation space 111, a second accommodation space 112, and a third accommodation space 113. At least one of the first partition plates 151 and the second partition plates 152 is movably provided in the storage space of the cabinet body 11. For example, it may be movably provided in the vertical and horizontal directions in the storage space of the cabinet body 11. Specifically, at least one of the first partition plates 151 and the second partition plates 152 is movably provided vertically in the storage space of the cabinet body 11, and accordingly, the storage space can be enlarged or reduced. For example, at least two chutes or slide rails arranged vertically are provided on the cabinet body 11. When the partition plate is provided on the chute or slide rail, it can move up and down, and the storage space formed by the partition plate and the cabinet body 11 and the storage space formed between the partition plates can realize a change in size. In one embodiment, the chute or slide rail extends along the horizontal direction. When the partition plate is provided on the chute or slide rail, it can be realized to be pulled out horizontally from the cabinet body 11, that is, the partition plate is also movably provided horizontally in the storage space. Function elements can be placed on the partition plate, and the function elements can be pulled out from the cabinet body 11 for maintenance.

[0013] In other embodiments, at least one of the first partition plate 151 and the second partition plate 152 may be movably provided only in the vertical direction within the storage space of the cabinet body 11. For example, at least two fixing members arranged vertically may be provided on the cabinet body 11, and the partition plate can select and fix different fixing members according to the demand for the size of the storage space, and accordingly, the storage space can be enlarged or reduced. Among them, the fixing member may be, for example, a locking groove, a locking tool is provided on the corresponding partition plate, and it is fixed by the engagement of the locking groove and the locking tool.

[0014] In other embodiments, at least one of the first partition plate 151 and the second partition plate 152 may be movably provided only in the horizontal direction within the storage space of the cabinet body 11. For example, a chute or a slide rail corresponding to the movable partition plate is provided on the cabinet body 11, the chute or the slide rail extends along the horizontal direction, and when the partition plate is provided on the chute or the slide rail, movement and drawing out in the horizontal direction can be realized. The number of chutes or slide rails may correspond to the number of movable partition plates.

[0015] In a specific embodiment, the second partition plate 152 is movably provided only in the horizontal direction on the cabinet body 11, the control unit 13 is provided on the second partition plate 152 and includes a UPS (uninterruptible power supply) host computer, and when the user needs to detect or repair the UPS host computer, the second partition plate 152 can be pulled out to easily operate the UPS host computer.

[0016] According to the specific situation of the functional elements, in this embodiment, the first partition plate 151 is fixedly provided on the cabinet body 11. Compared with other units, the power distribution unit 12 has a large number of power distribution elements 121, a small volume, and many and complicated wiring inside. Therefore, if the first partition plate 151 is movably provided, it will be disadvantageous to the user's operation. Therefore, the first storage space 111 is provided as a fixed space, and the first partition plate 151 is fixedly provided.

[0017] The bus bar cabinet 100 further includes a first cabinet door 161 and a second cabinet door 162. Both the first cabinet door 161 and the second cabinet door 162 are provided on the cabinet body 11 and are used to close the opening 110 of the cabinet body 11. In this embodiment, the opening 110 of the cabinet body 11 includes a first sub-opening 1101 and a second sub-opening 1102. The first sub-opening 1101 communicates with at least the first accommodation space 111, and the second sub-opening 1102 communicates with at least the third accommodation space 113. Among them, the first cabinet door 161 closes the first sub-opening 1101 corresponding to at least the first accommodation space 111, and the second cabinet door 162 closes the second sub-opening 1102 corresponding to at least the third accommodation space 113. In one embodiment, the first sub-opening 1101 further communicates with the second accommodation space 112. Therefore, the first cabinet door 161 is further configured to close the opening corresponding to the accommodation space 112. In other embodiments, the first sub-opening 1101 further communicates with the second accommodation space 112. In this way, the second cabinet door 162 is configured to close the opening corresponding to the second accommodation space 112

[0018] In this embodiment, the second sub-opening 1102 communicates with the second accommodation space 112 and the third accommodation space 113 respectively. The size of the first sub-opening 1101 in the vertical direction is equal to or greater than the size of the second sub-opening 1102 in the vertical direction. The first cabinet door 161 is movably connected to the cabinet body 11 so as to open and close the first sub-opening 1101, and the second cabinet door 162 is movably connected to the cabinet body 11 so as to open and close the second sub-opening 1102.

[0019] A busbar unit 14 is provided in the third accommodation space 113. Since the busbar unit 14 is prone to high-voltage power risks, an electromagnetic lock is provided on the second cabinet door 162, and a battery management module BMS is provided in the control unit 13. The battery management module BMS is connected to the electromagnetic lock and controls the electromagnetic lock to lock when the busbar unit 14 is operating, so as to avoid the second cabinet door 162 from being opened. Only when the operation of the busbar unit 14 stops, the electromagnetic lock is controlled to unlock so that the second cabinet door 162 can be opened. The installation of the electromagnetic lock ensures the safety of the busbar cabinet 100 and avoids the risk of electric shock.

[0020] The first cabinet door 161 is provided corresponding to the first accommodation space 111. Since it is operated by the user more often than the second cabinet door 162, a human-machine interaction display 1611 and an indicator lamp 1612 are further provided on the first cabinet door 161.

[0021] Regarding the power distribution unit 12 in the first accommodation space 111, since it is used to arrange electrical energy, the wiring in it is numerous and complicated. In this embodiment, in the first accommodation space 111, a plurality of first wiring clips 171 arranged horizontally and a plurality of second wiring clips 172 arranged vertically are provided to better organize the wiring therein.

[0022] Specifically, since the wiring clips are provided on the side wall and the rear wall of the cabinet body 11, the wiring locking grooves of the first wiring clips 171 and the second wiring clips 172 both face the opening 110 of the cabinet body 11 to easily organize the wiring. A plurality of third wiring clips 173 arranged horizontally are further provided on the side of the first partition plate 151 close to the opening 110 of the cabinet body 11, and the wiring locking grooves of the third wiring clips 173 face upward to easily organize the wiring entering the first accommodation space 111.

[0023] The power distribution unit 12 includes a plurality of power distribution elements 121. A lateral slide rail 18 is further provided in the first accommodation space 111. The plurality of power distribution elements 121 are movably provided on the lateral slide rail 18. Specifically, the power distribution element 121 may be provided to cover the lateral slide rail 18, or may be engaged in the chute on the lateral slide rail 18, thereby realizing sliding on the slide rail 18 and facilitating space adjustment. The busbar cabinet 100 may be provided with a plurality of rows of lateral slide rails 18 according to the actual situation.

[0024] The busbar cabinet 100 is further provided with a communication unit 19 located in the first accommodation space 111 and provided on the side wall of the cabinet body 11. The wiring of the communication unit 19 may be provided from the side. The communication unit 19 is provided on the side wall to better utilize the space.

[0025] In the first accommodation space 111, a third partition plate 153 may be further provided to divide the space facing the cabinet door and the space facing away from the cabinet door. The first wiring clip 171, the second wiring clip 172, and the lateral chute 18 may all be provided on the third partition plate 153. The power distribution unit 12 is provided in the space facing the cabinet door, and the UPS energy storage battery 131 is provided in the space facing away from the cabinet door. The UPS energy storage battery 131 is connected to the UPS host computer. In the space facing away from the cabinet door, a winding element 174 is further provided, which can organize the wiring in the entire first accommodation space 111, that is, the extra wiring can be wound around the winding element 174 to make the wiring in the space neater.

[0026] Regarding the busbar unit 14 in the third accommodation space 113, it is used to collect electrical energy and is provided at the bottom of the cabinet body 11. Among them, the busbar unit 14 includes a plurality of copper bars 141 extending from the bottom of the cabinet body 11 to facilitate connection with the outside.

[0027] The busbar unit 14 further includes a circuit breaker 142. The circuit breaker 142 may be provided in the second accommodation space 112. It belongs to an element that does not need to be frequently operated. It is provided towards the side away from the cabinet door and may be fixedly provided with respect to the cabinet body 11 because it does not need to be frequently repaired.

[0028] The embodiment of the present application further provides an energy storage device. The energy storage device includes a plurality of battery clusters and a busbar cabinet. The busbar cabinet is the busbar cabinet 100 according to the embodiment of the present application, and the plurality of battery clusters are each electrically connected to the busbar unit 14 of the busbar cabinet 100.

[0029] Regarding the structure and arrangement of the busbar cabinet according to the embodiment of the present application, considering the functional characteristics of each functional unit, the power distribution unit 12 with many cable runs is provided in the first accommodation space 111 located at the upper part. The busbar unit 14 with high safety requirements and large connected elements is provided in the lower third accommodation space 113. For the control unit 13 in the second accommodation space 112, a drawer-type structure is used. The busbar cabinet of the embodiment of the present application has a simple overall space design and is easy to repair. Moreover, a second cabinet door 162 is provided independently for the busbar unit 14, and an electrically controllable electromagnetic lock is used to improve the overall safety.

Explanation of Reference Numerals

[0030] 100 Busbar Cabinet 11 Cabinet Body 110 Opening 111 First accommodation space 112 Second accommodation space 113 Third accommodation space 12 Power distribution unit 13 Control unit, 14 Busbar unit 151 First partition board 152 Second partition board 161 First cabinet door 162 Second cabinet door 1611 Human-machine interaction display 1612 Indicator lamp 171 First wiring clip 172 Second wiring clip 173 Third wiring clip 121 Power distribution element 18 Horizontal slide rail 141 Copper bar 142 Cut-off switch 153 Third partition board 1101 First sub-opening 1102 Second sub-opening.

Claims

1. A busbar cabinet including a cabinet body, a power distribution unit, a control unit, and a busbar unit provided in the cabinet body, wherein the cabinet body is formed with an opening and first, second, and third accommodation spaces arranged in order from top to bottom in the vertical direction, the opening communicates with the first, second, and third accommodation spaces respectively, the power distribution unit is provided in the first accommodation space, the control unit is provided in the second accommodation space, and the busbar unit is provided in the third accommodation space.

2. The cabinet body is formed with a storage space, and a first partition plate and a second partition plate arranged in the vertical direction are provided in the storage space so as to partition the storage space to form the first, second, and third accommodation spaces, and at least one of the first partition plate and the second partition plate is movably provided in the storage space. The busbar cabinet according to Claim 1.

3. The busbar cabinet according to Claim 2, wherein at least one of the first partition plate and the second partition plate is movably provided in the vertical direction and / or the horizontal direction in the storage space.

4. At least two shoots arranged in the vertical direction are provided in the cabinet body, the shoots extend along the horizontal direction, and at least one of the first partition plate and the second partition plate is provided on the shoot, or at least two slide rails arranged in the vertical direction are provided in the cabinet body, the shoot slide rails extend along the horizontal direction, and at least one of the first partition plate and the second partition plate is provided on the slide rail, or at least two fixing members arranged in the vertical direction are provided in the cabinet body, the fixing members extend along the horizontal direction, and at least one of the first partition plate and the second partition plate is provided on the fixing member. The busbar cabinet according to Claim 3.

5. A first cabinet door provided on the cabinet body so as to close at least the first accommodation space, and a second cabinet door provided on the cabinet body so as to close at least the third accommodation space, the busbar cabinet according to claim 1.

6. The second cabinet door is closed to the cabinet body via an electromagnetic lock, and the control unit includes a battery management module connected to the electromagnetic lock, the busbar cabinet according to claim 5.

7. In the first accommodation space, a plurality of first wiring clips arranged horizontally and a plurality of second wiring clips arranged vertically are provided, the busbar cabinet according to claim 2.

8. A plurality of third wiring clips arranged horizontally are provided on the side of the first partition plate close to the opening of the cabinet body, and the wiring locking grooves of the first wiring clips and the second wiring clips both face the opening of the cabinet body, and the wiring locking groove of the third wiring clip faces upward, the busbar cabinet according to claim 7.

9. A horizontal slide rail is provided in the first accommodation space, and the power distribution unit includes a plurality of power distribution elements movably provided on the horizontal slide rail, the busbar cabinet according to claim 1.

10. An energy storage device, including a plurality of battery clusters and the busbar cabinet according to any one of claims 1 to 9, wherein the plurality of battery clusters are each electrically connected to the busbar unit, the energy storage device.

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