An energy storage system

Abstract

The utility model belongs to the energy storage technology field, concretely relates to a kind of energy storage system, including cabin, battery cluster, liquid cooling unit, current collection power distribution area and high voltage control module, the battery cluster has a number of series, a number of series battery cluster is set in cabin inside along the length direction of cabin, single column battery cluster includes several battery packs being set along the height direction of cabin, the battery pack quantity of one column battery cluster is less than the battery pack quantity of each column battery cluster except it, the liquid cooling unit is set in cabin inside and is located at the top of battery cluster with less battery pack quantity, the current collection power distribution area is located at one end in cabin inside, the high voltage control module includes two subparts, one of which is set on the cabin door of cabin, another subpart is set in current collection power distribution area.The utility model optimizes the space layout inside cabin, the space inside cabin located at the bottom of battery cluster can also be used to install battery pack, effectively improve the space utilization of cabin inside, so that the energy density of energy storage system is improved.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage technology, and specifically relates to an energy storage system. Background Technology

[0002] Currently, with the gradual expansion of the electrochemical energy storage system application market and the increasing perfection of industry standards, energy storage container systems are developing towards greater safety and higher energy density. In existing technologies, the high-voltage control module in the energy storage system is located below the battery cluster, requiring space at the bottom of the compartment, such as... Figure 1 As shown, due to the relatively small size of the high-voltage control module, especially when the battery pack is large, the length of the high-voltage control module is even less than half that of the battery pack. This leads to a waste of space at the bottom of the compartment behind the high-voltage control module, resulting in low space utilization and hindering the improvement of the energy density of the energy storage system. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an energy storage system that optimizes the internal space layout and improves energy density.

[0004] This utility model includes a cabin, battery clusters, a liquid cooling unit, a power distribution area, and a high-voltage control module. The battery clusters are arranged in several rows along the length of the cabin inside the cabin. Each row of battery clusters includes several battery packs arranged along the height of the cabin, with one row of battery clusters having fewer battery packs than the other rows. The liquid cooling unit is located inside the cabin and on top of the battery cluster with fewer battery packs. The power distribution area is located at one end inside the cabin. The high-voltage control module includes two sub-parts, one of which is located on the cabin door, and the other is located in the power distribution area.

[0005] Furthermore, the hatch is equipped with a housing for accommodating one of the sub-components of the high-voltage control module.

[0006] Furthermore, the container is located inside the hatch, and the hatch has an opening that communicates with the interior of the container. A door is located on the outside of the hatch corresponding to the position of the opening.

[0007] Furthermore, the number and position of the hatches correspond to the number and position of the battery clusters, the number of the high-voltage control modules correspond to the number of battery clusters, and one sub-part of each high-voltage control module is installed on each hatch one-to-one.

[0008] Furthermore, the sub-sections installed on the hatch include Hall sensors, DC circuit breakers, and fast-acting fuses, while the sub-sections installed in the busbar distribution area include an integrated disconnector module and a main control integrated module.

[0009] Furthermore, the disconnect switch integrated module is arranged above the busbar in the bus distribution area, and the main control integrated module is arranged inside the cabinet door of the bus distribution area.

[0010] Furthermore, the dimensions of the cabin are 20 feet.

[0011] Furthermore, the air inlet of the liquid cooling unit is located on the side of the cabin, and the air outlet of the liquid cooling unit is located on the top of the cabin.

[0012] Furthermore, the inlet and outlet of the liquid cooling pipeline of the liquid cooling unit are both located at the top of the cabin.

[0013] Furthermore, the cabin is equipped with a temperature and humidity control system, a fire alarm system, and a fire suppression system.

[0014] The beneficial effects of this invention are that by placing the liquid cooling unit at the top of a row of battery clusters with fewer battery packs, the liquid cooling unit does not need to occupy the entire space at one end of the cabin. Furthermore, the existing arrangement of the high-voltage control module at the bottom of the battery clusters is eliminated. The high-voltage control module is divided into two sub-sections, correspondingly arranged in the cabin door and the busbar distribution area, respectively. This eliminates the need to occupy space at the bottom of the battery clusters, optimizing the internal space layout of the cabin. The space at the bottom of the battery clusters can also be used to install the battery pack, effectively improving the space utilization rate inside the cabin and increasing the energy density of the energy storage system. Moreover, the power harness of the battery pack connects to the high-voltage control module sub-section on the cabin door before reaching the high-voltage control module sub-section in the busbar distribution area. The power harness branching off from the high-voltage control module sub-section in the busbar distribution area can be connected to the busbar in the busbar distribution area nearby, reducing the length of the power harness while ensuring the functionality of the high-voltage control module. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the existing high-voltage control module installed inside the cabin.

[0016] Figure 2 This is a schematic diagram of the energy storage system of this utility model.

[0017] Figure 3 This is a schematic diagram of the battery pack arrangement of this utility model.

[0018] Figure 4 This is a first-view schematic diagram of the hatch of this utility model.

[0019] Figure 5 This is a second-view schematic diagram of the hatch of this utility model.

[0020] Figure 6 This is a schematic diagram showing the distribution of several hatches of this utility model.

[0021] Figure 7 This is a schematic diagram of the layout of the integrated disconnector module of this utility model.

[0022] Figure 8 This is a schematic diagram of the layout of the main control integrated module of this utility model.

[0023] In the diagram: 1. Cabinet; 11. Cabinet door; 2. Battery cluster; 21. Battery pack; 3. Liquid cooling unit; 4. Busbar distribution area; 41. Cabinet door; 5. High-voltage control module; 51. Enclosure; 511. Enclosure door; 52. Isolating switch integrated module; 53. Main control integrated module; 6. Fire control box; 7. Pressure relief window; 8. Exhaust fan. Detailed Implementation

[0024] like Figure 2-8 As shown, this utility model provides an energy storage system, including a cabin 1, battery clusters 2, a liquid cooling unit 3, a power distribution area 4, and a high-voltage control module 5. The battery clusters 2 are arranged in several rows, all inside the cabin 1, along the length of the cabin 1. Each row of battery clusters 2 includes several battery packs 21, arranged along the height of the cabin 1. In one row of battery clusters 2, the number of battery packs 21 is less than the number of battery packs 21 in the other rows. The liquid cooling unit 3 is located inside the cabin 1 and at the top of the battery cluster 2 with fewer battery packs 21. The power distribution area 4 is located at one end inside the cabin 1. The high-voltage control module 5 includes two sub-parts: one sub-part is located on the cabin door 11, and the other sub-part is located in the power distribution area 4.

[0025] This invention places the liquid cooling unit 3 on top of a row of battery clusters 2 with fewer battery packs 21. The liquid cooling unit 3 does not need to occupy all the space at one end of the compartment 1. Furthermore, it eliminates the existing arrangement of the high-voltage control module 5 at the bottom of the battery clusters 2. The high-voltage control module 5 is divided into two sub-parts, correspondingly arranged in the door 11 and the power distribution area 4, respectively. This eliminates the need to occupy the bottom space of the battery clusters 2, optimizing the internal space layout of the compartment 1. The space at the bottom of the battery clusters 2 inside the compartment 1 can also be used to install the battery packs 21, effectively improving the space utilization rate inside the compartment 1 and increasing the energy density of the energy storage system. Moreover, the power harness of the battery packs 21 connects to the high-voltage control module 5 sub-part on the door 11 before reaching the high-voltage control module 5 sub-part in the power distribution area 4. The power harness exiting from the high-voltage control module 5 sub-part in the power distribution area 4 can be connected to the busbar of the power distribution area 4 nearby, reducing the length of the power harness while ensuring the functionality of the high-voltage control module 5.

[0026] The hatch 11 is provided with a housing 51 for arranging one of the sub-parts of the high-voltage control module 5. That is, one of the sub-parts of the high-voltage control module 5 is integrated into the housing 51 on the hatch 11 to facilitate the arrangement of the sub-part on the hatch 11.

[0027] Specifically, the enclosure 51 is located inside the hatch 11, and the hatch 11 has an opening that communicates with the interior of the enclosure 51. A door 511 is located on the outside of the hatch 11 at the position corresponding to the opening. By opening the door 511 on the outside of the hatch 11, the high-voltage control module 5 sub-section inside the enclosure 51 can be inspected and maintained.

[0028] In this utility model, the number and position of the hatches 11 correspond to the number and position of the array of battery clusters 2, such as... Figure 2 and Figure 6 As shown, when there are four rows of battery clusters 2, there are also four hatches 11. The positions of the four hatches 11 on the body 1 correspond to the four rows of battery clusters 2. The number of high-voltage control modules 5 corresponds to the number of rows of battery clusters 2. One sub-part of each high-voltage control module 5 is installed one-to-one on each hatch 11, that is, the position corresponds to each battery cluster 2. Each row of battery clusters 2 is connected to the corresponding high-voltage control module 5 through a power harness.

[0029] In this invention, the sub-section mounted on the hatch 11 includes a Hall sensor, a DC circuit breaker, and a fast-acting fuse, while the sub-section mounted on the busbar distribution area 4 includes an isolating switch integrated module 52 and a main control integrated module 53. The isolating switch integrated module 52 is positioned above the busbar within the busbar distribution area 4, and a cabinet door 41 is located on one side of the busbar distribution area 4. The main control integrated module 53 is located inside the cabinet door 41 of the busbar distribution area 4. Based on this configuration, the power harness of the battery pack 21 connects to the high-voltage control module 5 sub-section on the hatch 11 before reaching the isolating switch integrated module 52. The power harness exiting the isolating switch integrated module 52 can then be connected to the busbar below, thereby reducing the length of the power harness.

[0030] The cabin 1 measures 20 feet and features a standardized design, capable of accommodating the installation of components with varying domestic and international requirements, thus facilitating production and on-site wiring. To meet market demand for larger capacity battery packs, the capacity of individual battery packs 21 is increased, and the size of the battery pack 21 is enlarged, while maintaining the same number of cells. This results in increased energy density in individual battery packs 21, a reduction in the total number of battery packs 21 within the cabin, and a decrease in the number of power wiring harnesses within the cabin.

[0031] The air inlet of the liquid cooling unit 3 is located on the side of the cabin 1, and the air outlet of the liquid cooling unit 3 is located on the top of the cabin 1. The air inlet and outlet areas can be effectively increased, the air outlet can avoid the pedestrian passage, and the noise can be effectively reduced. The air outlet fan of the liquid cooling unit 3 generates less noise when placed horizontally than when placed vertically, and the air outlet does not face the passage, so as to avoid interfering with the operators and other nearby equipment.

[0032] The inlet and outlet of the liquid cooling pipeline of the liquid cooling unit 3 are both located at the top of the cabin 1 to avoid the connection of the liquid cooling pipeline from interfering with the nearby equipment on the side of the cabin 1.

[0033] The interior of the cabin 1 is equipped with a temperature and humidity control system, a fire alarm system, and a fire suppression system to ensure the safety of the energy storage system. These systems are existing technologies and will not be described in detail here. At the end of cabin 1 where the power distribution area 4 is located, there is also a fire control box 6, a pressure relief window 7, and an exhaust fan 8.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of protection of this application is limited to these examples; within the framework of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0035] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. An energy storage system, characterized in that, The system includes a cabin (1), battery clusters (2), a liquid cooling unit (3), a power distribution area (4), and a high-voltage control module (5). The battery clusters (2) are arranged in several rows along the length of the cabin (1) inside the cabin (1). Each row of battery clusters (2) includes several battery packs (21) arranged along the height of the cabin (1). The number of battery packs (21) in one row of battery clusters (2) is less than the number of battery packs (21) in the other rows of battery clusters (2). The liquid cooling unit (3) is located inside the cabin (1) and on top of the battery clusters (2) with fewer battery packs (21). The power distribution area (4) is located at one end inside the cabin (1). The high-voltage control module (5) includes two sub-parts, one of which is located on the hatch (11) of the cabin (1), and the other is located in the power distribution area (4).

2. The energy storage system as described in claim 1, characterized in that, The hatch (11) is equipped with a box (51) for arranging one of the sub-parts of the high-voltage control module (5).

3. The energy storage system as described in claim 2, characterized in that, The box (51) is located inside the hatch (11), and the hatch (11) has an opening that communicates with the inside of the box (51). A box door (511) is located on the outside of the hatch (11) at the position corresponding to the opening.

4. The energy storage system as described in any one of claims 1-3, characterized in that, The number and position of the hatches (11) correspond to the number and position of the battery clusters (2), and the number of the high-voltage control modules (5) corresponds to the number of the battery clusters (2). One of the sub-parts of each high-voltage control module (5) is set on each hatch (11) one-to-one.

5. The energy storage system as described in any one of claims 1-3, characterized in that, The sub-sections installed on the hatch (11) include Hall sensors, DC circuit breakers and fast fuses, and the sub-sections installed in the busbar distribution area (4) include disconnect switch integrated module (52) and main control integrated module (53).

6. The energy storage system as described in claim 5, characterized in that, The disconnect switch integrated module (52) is arranged above the busbar in the bus distribution area (4), and the main control integrated module (53) is arranged inside the cabinet door (41) of the bus distribution area (4).

7. The energy storage system as described in any one of claims 1-3 and 6, characterized in that, The dimensions of the cabin (1) are 20 feet.

8. The energy storage system according to any one of claims 1-3 and 6, characterized in that, The air inlet of the liquid cooling unit (3) is located on the side of the cabin (1), and the air outlet of the liquid cooling unit (3) is located on the top of the cabin (1).

9. The energy storage system according to any one of claims 1-3 and 6, characterized in that, The liquid inlet and outlet of the liquid cooling pipeline of the liquid cooling unit (3) are both located at the top of the cabin (1).

10. The energy storage system according to any one of claims 1-3 and 6, characterized in that, The cabin (1) is equipped with a temperature and humidity control system, a fire alarm system and a fire protection system.

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