Energy storage cabinet

Abstract

The utility model discloses an energy storage cabinet, which comprises an energy storage cabinet body, a power distribution unit, a PCS module, a battery module and a high-voltage box, the energy storage cabinet body is divided into a first space and a second space along the horizontal direction, the power distribution unit is arranged at the upper position in the second space, the PCS module is arranged below the power distribution unit, and the battery module is arranged in the second space. The PCS module is provided with a first space, the liquid cooling unit is arranged in the first space, the battery module, the liquid cooling unit and the high-voltage box are arranged in the first space, the battery module is located at the upper position in the first space, and the liquid cooling unit is used for conducting heat dissipation on the battery module and the PCS module. The PCS module can be integrated in the energy storage cabinet while effective heat dissipation of the PCS module and the battery module is guaranteed, and the space utilization rate of the energy storage cabinet is increased.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, in particular to an energy storage cabinet. Background Art

[0002] In an energy storage system, the energy storage cabinet integrates flexibility, economy, high efficiency and safety, and is mainly applied to wind, light, energy storage and microgrid projects. Due to its high energy density, small floor area, convenient installation, short construction period, convenient mobile transportation, flexible configuration of standardized components and system capacity to meet the needs of most customers, it is widely used.

[0003] For the energy storage cabinet in the prior art, in order to facilitate the heat dissipation of the PCS (energy storage converter) module, the PCS module is usually arranged in an external cabinet, with poor integration, large occupied area and inconvenient use. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an energy storage cabinet which can effectively dissipate heat from the PCS module while integrating it into the energy storage cabinet body.

[0005] The utility model is realized by the following technical solutions.

[0006] An energy storage cabinet includes an energy storage cabinet body, a power distribution unit, a PCS module, a battery module and a high-voltage box;

[0007] The energy storage cabinet body is divided into a first space and a second space along the horizontal direction. The power distribution unit is arranged at the upper position in the second space, and the PCS module is located below the power distribution unit;

[0008] The battery module, the liquid cooling unit and the high-voltage box are arranged in the first space. The battery module is located at the upper position in the first space, and the liquid cooling unit is used to dissipate heat from the battery module and the PCS module.

[0009] As a further improvement of the utility model, the liquid cooling unit includes a liquid chiller and a liquid cooling pipeline connected to the liquid chiller for dissipating heat from the battery module and the PCS module. The liquid chiller is located below the battery module.

[0010] As a further improvement of the utility model, the battery modules are arranged in multiple columns along the horizontal direction of the energy storage cabinet body, and each column of the battery modules includes a plurality of battery clusters arranged in sequence from the top to the bottom of the energy storage cabinet body.

[0011] As a further improvement of the utility model, the high-voltage box is arranged below a column of the battery modules close to the PCS module.

[0012] As a further improvement of the present utility model, a plurality of first front cabinet doors are provided corresponding to multiple columns of the battery modules at the front end of the energy storage cabinet body, and a second front cabinet door is provided corresponding to the power distribution unit and the PCS module.

[0013] As a further improvement of the present utility model, a rear cabinet door is provided corresponding to each of the first front cabinet doors at the rear end of the energy storage cabinet body.

[0014] As a further improvement of the present utility model, dehumidifiers are provided on the inner sides of the first front cabinet door and the second front cabinet door.

[0015] As a further improvement of the present utility model, ventilation openings are provided at positions corresponding to the liquid cooling machine on the first front cabinet door and the rear cabinet door.

[0016] As a further improvement of the present utility model, a plurality of partition plates are arranged at intervals on the ventilation openings.

[0017] As a further improvement of the present utility model, handles are provided on the first front cabinet door, the second front cabinet door and the rear cabinet door.

[0018] Advantages of the present utility model:

[0019] The present utility model provides an energy storage cabinet, which dissipates heat from the PCS module and the battery module by means of liquid cooling, ensuring effective heat dissipation of the PCS module and the battery module while being able to integrate the PCS module inside the energy storage cabinet, increasing the space utilization rate of the energy storage cabinet body. Description of the drawings

[0020] The following will describe in detail the preferred embodiments of the present utility model through the drawings to help understand the purpose and advantages of the present utility model, where:

[0021] Figure 1 is the front view of an energy storage cabinet of the present utility model;

[0022] Figure 2 is the front view of the energy storage cabinet body in the present utility model;

[0023] Figure 3 is the rear view of an energy storage cabinet of the present utility model;

[0024] In the figure:

[0025] 1. Energy storage cabinet body; 11. First front cabinet door; 13. Second front cabinet door; 13. Rear cabinet door; 14. Handle; 15. Ventilation opening; 16. Partition plate; 2. Power distribution unit; 3. PCS module; 4. Battery module; 41. Battery cluster; 5. High-voltage box; 6. Liquid cooling unit; 61. Liquid cooling machine; 62. Liquid cooling pipeline; 7. Dehumidifier. Detailed implementation manners

[0026] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In this specification, orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc., which are mentioned or may be mentioned, are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0028] This embodiment provides an energy storage cabinet. Referring to Figures 1-2 , it includes an energy storage cabinet body 1, a power distribution unit 2, a PCS module 3, a battery module 4, and a high-voltage box 5. The energy storage cabinet is a cuboid cabinet with a hollow interior. The energy storage cabinet body 1 is divided into a first space and a second space in the horizontal direction, that is, the space inside the energy storage cabinet body 1 is divided into two parts. The first space is provided with the battery module 4, the liquid cooling unit 6, and the high-voltage box 5. The second space is provided with the power distribution unit 2 and the PCS module 3. The battery module 4 is located in the upper position in the first space. The power distribution unit 2 is arranged in the upper position in the second space. The PCS module 3 is located directly below the power distribution unit 2. The liquid cooling unit 6 is used to dissipate heat from the battery module 4 and the PCS module 3. During electrical connection, the power distribution unit 2, the PCS module 3, the high-voltage box 5, and the battery module 4 are electrically connected in sequence as the main circuit of the circuit. The user's incoming and outgoing lines are connected to the PCS module 3 through the power distribution unit 2. The power distribution unit 2 and the PCS module 3 are arranged closely one above the other, with high space utilization. The positions of the high-voltage box 5 and the battery module 4 are close, facilitating wiring. At the same time, the liquid cooling method is used to dissipate heat from the battery module 4 and the PCS module 3, ensuring effective heat dissipation of the battery module 4 and the PCS module 3, and the PCS module 3 can be integrated into the energy storage cabinet, improving space utilization.

[0029] Specifically, the liquid cooling unit 6 includes a liquid chiller 61 and liquid cooling pipelines 62. Both ends of the liquid cooling pipelines 62 are connected to the liquid chiller 61. The liquid cooling pipelines 62 are distributed on the battery module 4 and the PCS module 3. The liquid cooling pipelines 62 only need to contact the surfaces of the battery module 4 and the PCS module 3 to achieve heat dissipation of the battery module 4 and the PCS module 3. The liquid chiller 61 is located below the battery module 4. It should be noted that the number of liquid chillers 61 can be set to one or more, and its actual number is determined according to the heat dissipation requirements of the battery module 4 and the PCS module 3.

[0030] Furthermore, the battery modules 4 are arranged in multiple columns along the horizontal direction of the energy storage cabinet body 1. Each column of battery modules 4 includes multiple battery clusters 41 arranged in sequence from the top to the bottom of the energy storage cabinet body 1. Arranging the battery modules 4 in multiple columns can reduce the height of the energy storage cabinet body 1, enabling the energy storage cabinet body 1 to meet more usage scenarios. At the same time, in order to simplify the electrical connection between the battery clusters 41 and the high-voltage box 5, the high-voltage box 5 is arranged at the lower right of the entire battery module 4. Specifically, the high-voltage box 5 is arranged below the column of battery modules 4 close to the PCS module 3, and the number of battery clusters 41 in this column of battery modules 4 is relatively small, so that the position of the high-voltage box 5 will not interfere with the installation of the liquid cooler 61. At the same time, the high-voltage box 5 is arranged adjacent to the PCS module 3, facilitating the electrical connection between the high-voltage box 5 and the PCS module 3.

[0031] As Figure 1 and Figure 3 shown, multiple first front cabinet doors 11 are provided corresponding to the multiple columns of battery modules 4 at the front end of the energy storage cabinet body 1. The position of the first front cabinet doors 11 can cover the energy storage cabinet in the height direction. A second front cabinet door 12 is provided corresponding to the power distribution unit 2 and the PCS module 3, facilitating the partition management of the electrical components in the energy storage cabinet. At the same time, a rear cabinet door 13 is provided corresponding to each first front cabinet door 11 at the rear end of the energy storage cabinet body 1. Operators can install and maintain the battery modules 4 from both the front and rear sides, which is convenient for operation. And, handles 14 are provided on the first front cabinet doors 11, the second front cabinet doors 12, and the rear cabinet doors 13.

[0032] Furthermore, in order to improve the heat dissipation efficiency of the liquid cooler 61, ventilation openings are provided at the positions corresponding to the liquid cooler 61 on the first front cabinet doors 11 and the rear cabinet doors 13. The size of the ventilation openings can cover the liquid cooler 61. Setting the ventilation openings can introduce external airflows to help the liquid cooler 61 dissipate heat, thereby improving the heat dissipation efficiency of the battery modules 4 and the PCS module 3. And, multiple partitions are arranged at intervals on the ventilation openings. On the one hand, the multiple partitions arranged at intervals can reduce the entry of external dust into the energy storage cabinet body 1 while ensuring ventilation. On the other hand, the multiple partitions can reduce the impact of the noise generated when the liquid cooler 61 is working on the outside.

[0033] At the same time, since the battery modules 4 and the PCS module 3 in the energy storage cabinet are cooled by liquid, it is easy to cause uneven temperature in the energy storage cabinet body 1, resulting in the easy occurrence of condensed water. The condensed water is likely to affect the normal operation of the electrical components inside the energy storage cabinet body 1. Therefore, dehumidifiers are provided on both the first front side door and the second front side door of the energy storage cabinet body 1. Setting the dehumidifiers can effectively reduce the humidity in the energy storage cabinet, thereby avoiding the impact of the condensed water in the energy storage cabinet body 1 on the normal operation of the electrical equipment.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy storage cabinet, characterized in that, It includes an energy storage cabinet body (1), a power distribution unit (2), a PCS module (3), a battery module (4), a high-voltage box (5), and a liquid cooling unit (6); The energy storage cabinet body (1) is divided into a first space and a second space in the horizontal direction. The power distribution unit (2) is arranged at the upper position in the second space, and the PCS module (3) is located below the power distribution unit (2); The battery module (4), the liquid cooling unit (6), and the high-voltage box (5) are arranged in the first space. The battery module (4) is located at the upper position in the first space. The liquid cooling unit (6) is used to dissipate heat from the battery module (4) and the PCS module (3).

2. The energy storage cabinet according to claim 1, wherein, The liquid cooling unit includes a liquid chiller (61) and a liquid cooling pipeline (62) connected to the liquid chiller (61) for dissipating heat from the battery module (4) and the PCS module (3). The liquid chiller (61) is located below the battery module (4).

3. The energy storage cabinet according to claim 2, wherein, The battery modules (4) are arranged in multiple columns along the horizontal direction of the energy storage cabinet body (1). Each column of the battery modules (4) includes a plurality of battery clusters (41) arranged in sequence from the top to the bottom of the energy storage cabinet body (1).

4. The energy storage cabinet according to claim 3, wherein The high-voltage box (5) is arranged below one column of the battery modules (4) close to the PCS module (3).

5. A energy storage cabinet according to claim 3, characterized in that, A plurality of first front cabinet doors (11) are provided at the front end of the energy storage cabinet body (1) corresponding to the multiple columns of the battery modules (4) one by one, and a second front cabinet door (12) is provided corresponding to the power distribution unit (2) and the PCS module (3).

6. The energy storage cabinet according to claim 5, characterized in that, Rear cabinet doors (13) are provided at the rear end of the energy storage cabinet body (1) corresponding to each of the first front cabinet doors (11).

7. The energy storage cabinet according to claim 6, wherein Dehumidifiers (7) are provided on the inner sides of the first front cabinet doors (11) and the second front cabinet doors (12).

8. A energy storage cabinet according to claim 6, characterized in that, Ventilation openings (15) are provided at the positions corresponding to the liquid chiller (61) on the first front cabinet doors (11) and the rear cabinet doors (13).

9. The energy storage cabinet according to claim 8, wherein, A plurality of partitions (16) are arranged at intervals on the ventilation openings (15).

10. A energy storage cabinet according to claim 6, characterized in that, Handles (14) are provided on the first front cabinet doors (11), the second front cabinet doors (12), and the rear cabinet doors (13).

Images