Lithium battery energy storage cabinet

Abstract

The utility model discloses a lithium battery energy storage cabinet which comprises a cabinet body, the cabinet body is divided into a direct current side and an alternating current side up and down, the direct current side is provided with a plurality of battery pack installation positions, and the battery pack installation positions are longitudinally arranged in the same specification; the alternating current side is divided into a bidirectional energy storage converter installation position, an air-cooled liquid-cooled host installation position and a high-voltage box installation position which are longitudinally arranged through stand columns. The whole energy storage cabinet disclosed by the utility model is cuboid, the height is moderate, the size is small, all devices are reasonably distributed and arranged, and the use efficiency of the internal space is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of energy storage equipment, and in particular relates to a lithium battery energy storage cabinet. Background Art

[0002] With the development of the new energy industry, the demand for energy storage cabinets in the industrial and commercial energy storage sector is increasing. Higher energy density means more power can be stored within the same footprint. Existing energy storage systems suffer from issues such as inefficient internal layout space and poor heat dissipation, which limit their performance and application. This paper proposes a layout for a lithium battery energy storage system. Utility Model Content

[0003] In response to the above-mentioned defects, the present invention provides a lithium battery energy storage cabinet with high efficiency, moderate height and strong heat dissipation.

[0004] A lithium battery energy storage cabinet includes a cabinet body, which is divided into a DC side and an AC side from top to bottom. The DC side is provided with a plurality of battery pack mounting positions, which are arranged longitudinally with the same specifications. The AC side is divided into longitudinally arranged bidirectional energy storage converter mounting positions, air-cooled liquid-cooled main unit mounting positions, and high-voltage box mounting positions by columns.

[0005] Preferably, the battery installation position is a horizontal space divided by the bracket, and each battery pack is arranged equidistantly from top to bottom on the bracket.

[0006] Preferably, the internal frame of the cabinet is based on columns, which are located on base channel steels, and each column is connected by a transverse support beam.

[0007] As a preferred embodiment, cabinet doors are provided at the front and rear of the AC side, and shutters are provided on the front cabinet door and the rear cabinet door of the AC side.

[0008] Preferably, the bidirectional energy storage converter (PCS) is installed on the column based on the mounting parts, and is located on the upper layer of the AC side; the air-cooled liquid-cooled host is installed on the column based on the mounting parts, and is located on the middle layer of the AC side; the high-voltage box is installed on the column based on the mounting parts, and is located on the lower layer of the AC side. A fire protection system is also arranged on the rear side of the high-voltage box and on the fire protection installation plate.

[0009] Preferably, a UPS is installed next to the fire protection system, on the left and right sides of the same floor.

[0010] Preferably, a DC side front cabinet door and a DC side rear cover are provided on the front and rear sides of the DC side respectively, and a fire water interface is reserved on the DC side rear cover.

[0011] Preferably, an indicator light and an emergency stop switch button are provided on the front cabinet door on the AC side.

[0012] Preferably, an air intake valve is installed on the front cabinet door of the DC side, and an exhaust valve and an explosion relief valve are installed at corresponding positions of the rear cover plate of the DC side.

[0013] The beneficial effects of the utility model are:

[0014] (1) This utility model provides a lithium battery energy storage cabinet layout with reasonable internal space layout and time efficiency.

[0015] Compared with other energy storage cabinets on the market, it is lower in height, smaller in size and has better heat dissipation performance;

[0016] (2) The utility model provides a lithium battery energy storage cabinet layout, in which lithium batteries are stored in partitions, which complies with safety regulations and corresponding fire safety requirements, and at the same time has thermal management measures. The entire cabinet has high efficiency and a more coordinated appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments.

[0018] Figure 1 This is a schematic diagram of the internal structure of the front side of an energy storage cabinet according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the rear structure of an energy storage cabinet according to an embodiment of the present invention;

[0020] Figure 3 This is an overall schematic diagram of the front door of an energy storage cabinet according to an embodiment of the present invention;

[0021] Figure 4 This is an overall schematic diagram of the rear door of an energy storage cabinet according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the energy storage cabinet frame structure of an embodiment of the present utility model.

[0023] Reference numerals:

[0024] 1-Bidirectional energy storage converter, 2-Air-cooled and liquid-cooled main unit, 3-Battery pack, 4-High-voltage box, 5-Firefighting system, 6-Firefighting water interface, 7-DC side rear cover, 8-UPS, 9-AC side front door, 10-Indicator light and emergency stop switch button, 11-Inlet valve, 12-DC side front door, 13-AC side rear door, 14-Exhaust valve, 15-Explosion relief valve, 16-Antenna outlet, 17-Column. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example

[0027] like Figures 1 to 5 As shown, the utility model discloses a lithium battery energy storage cabinet. The cabinet has a roughly rectangular shape, measuring 1050 mm wide, 1450 mm deep, and 2500 mm high. The cabinet comprises a cabinet body and a base disposed at the bottom of the cabinet body. A profile frame is provided within the cabinet body, dividing the interior of the cabinet body into upper and lower areas, separating the DC side and the AC side. The upper area is the AC side, and the lower area is the DC side.

[0028] like Figure 1 As shown, AC side layout:

[0029] This application divides the AC side area into three layers, and sets up a bidirectional energy storage converter 1 (PCS), an air-cooled liquid cooling host 2 and a high-voltage box 4 respectively. The bidirectional energy storage converter 1 (PCS) is installed on the column using mounting parts and is located on the upper layer of the AC side; the air-cooled liquid cooling host 2 is also installed on the column using mounting parts and is located on the middle layer of the AC side; the lower layer is divided into two areas, front and back, such as Figure 1 As shown, a high-voltage box 4 is arranged on the front side of the lower layer. Figure 2 As shown, a fire protection system 5 is arranged on the rear side of the lower layer, i.e., the rear side of the high-voltage box, and the fire protection system 5 is fixed on the fire protection installation plate; a UPS 8 is arranged next to the fire protection system 5, and the fire protection system 5 and the UPS 8 are arranged on the same layer and on the left and right. The positions of the bidirectional energy storage converter 1 (PCS), the air-cooled liquid cooling host 2, and the high-voltage box 4 cannot be rotated. The high-voltage box 4 is placed on the lowest layer closest to the PACK, and the liquid cooling host and the PCS are allocated positions according to weight. In this embodiment, the fire protection system 5 contains components such as a fire controller, a repeater, and a fire cylinder, and these components need to be pre-fixed on this fire protection installation plate. As shown Figures 3 and 4 As shown, cabinet doors are provided at the front and rear of the AC side, namely, the AC side front cabinet door and the AC side rear cabinet door. To achieve ventilation and waterproofing on the AC side, that is, to provide good ventilation conditions for the air-cooled PCS, high-voltage box and air-cooled liquid-cooled host, shutters are opened on the AC side front cabinet door 9 and the AC side rear cabinet door 13, thereby ensuring ventilation, heat dissipation and waterproofing. A 4G antenna outlet 16 is provided in the upper right corner of the AC side rear cabinet door.

[0030] DC side layout:

[0031] The DC side is provided with several battery pack 3 installation positions, and the battery pack 3 installation positions are arranged vertically with the same specifications. The battery installation position is a horizontal space divided by a bracket, and each battery pack is arranged equidistantly from top to bottom on the bracket. In this embodiment, there is a cluster on the DC side, and one cluster contains 5 battery packs 3 (PACK), and each battery pack is arranged equidistantly from top to bottom on the bracket. Cabinet doors are provided on the front and back of the DC side, which are the DC side front cabinet door 12 and the DC side rear cover 7. A fire water interface 6 is reserved on the DC side rear cover 7. An indicator light and an emergency stop switch button 10 are set on the DC side front cabinet door 12, an air intake valve 11 is installed in the lower right corner, and an exhaust valve 14 and an explosion relief valve 15 are installed at the corresponding position on the back of the cabinet. In this embodiment, the corresponding position refers to the diagonal line of the space. The air intake valve 11 is provided at the lower right corner of the DC side front cabinet door 12, the exhaust valve 14 is provided at the upper right corner of the DC side rear cover 7, and the explosion relief valve 15 is provided at the lower right corner of the DC side rear cover 7. There are 2 of them.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A lithium battery energy storage cabinet, comprising a cabinet body, characterized in that: The cabinet is divided into a DC side and an AC side at the top and bottom. The DC side is provided with a plurality of battery pack (3) mounting positions, and the battery pack (3) mounting positions are arranged longitudinally with the same specifications. The AC side is divided into a longitudinally arranged bidirectional energy storage converter (1) mounting position, an air-cooled liquid-cooled host (2) mounting position, and a high-voltage box (4) mounting position by columns.

2. The lithium battery energy storage cabinet according to claim 1, characterized in that: The battery pack (3) installation position is a horizontal space divided by the bracket, and each battery pack (3) is arranged equidistantly from top to bottom on the bracket.

3. The lithium battery energy storage cabinet according to claim 1, characterized in that: The internal frame of the cabinet is based on columns (17), which are located on the base channel steel, and each column (17) is connected by a transverse support beam.

4. The lithium battery energy storage cabinet according to claim 1, characterized in that: Cabinet doors are provided at the front and rear of the AC side, and shutters are provided on the front AC side cabinet door (9) and the rear AC side cabinet door (13).

5. The lithium battery energy storage cabinet according to claim 1, characterized in that: The bidirectional energy storage converter (1) is mounted on a column based on a mounting member and is located at the upper layer of the AC side; the air-cooled liquid-cooled host (2) is mounted on a column (17) based on a mounting member and is located at the middle layer of the AC side; the high-voltage box (4) is mounted on a column based on a mounting member and is located at the lower layer of the AC side; a fire protection system (5) is also arranged on the rear side of the high-voltage box (4) and on a fire protection installation plate.

6. The lithium battery energy storage cabinet according to claim 5, characterized in that: UPS (8) is installed next to the fire protection system and is set on the left and right sides of the same floor.

7. The lithium battery energy storage cabinet according to claim 5 or 6, characterized in that: A DC side front cabinet door (12) and a DC side rear sealing plate (7) are respectively provided at the front and rear of the DC side, and a fire water interface (6) is reserved on the DC side rear sealing plate (7).

8. The lithium battery energy storage cabinet according to claim 5 or 6, characterized in that: An indicator light and an emergency stop switch button (10) are provided on the AC side front cabinet door (9).

9. The lithium battery energy storage cabinet according to claim 5 or 6, characterized in that: An air inlet valve (11) is installed on the front cabinet door of the DC side, and an exhaust valve (14) and an explosion relief valve (15) are installed at corresponding positions of the rear cover plate of the DC side.

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