CN-224232697-U - Immersed energy storage system

CN224232697UCN 224232697 UCN224232697 UCN 224232697UCN-224232697-U

Abstract

The embodiment of the utility model provides an immersed energy storage system. The immersion type energy storage system comprises a box body, a battery module, a temperature detector, a pressure detector and a liquid level detector, wherein an immersion medium is arranged in the box body, the battery module is arranged in the box body and immersed by the immersion medium, the temperature detector, the pressure detector and the liquid level detector are all arranged in the box body, the temperature detector is used for detecting the temperature of the immersion medium in the box body, the pressure detector is used for detecting the pressure in the box body, and the liquid level detector is used for detecting the liquid level of the immersion medium in the box body. According to the immersion type energy storage system provided by the embodiment of the utility model, the battery module is immersed in the immersion medium in the box body, the temperature of the battery module is reduced through the immersion medium, and the temperature detector, the pressure detector and the liquid level detector are arranged in the box body so as to detect the temperature of the immersion medium, the pressure in the box body and the liquid level of the immersion medium, so that the safe operation of the box body and the battery module is ensured.

Inventors

SHI GUOYOU
ZHOU TINGTING
SHAO SHOUQIANG
ZHOU JIANYONG
JIANG CHENGBO
WANG YIYUN

Assignees

浙江巨化装备工程集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250225

Claims (10)

1. The immersed energy storage system is characterized by comprising a box body (1), a battery module (2), a temperature detector (3), a pressure detector (4) and a liquid level detector (5), wherein an immersed medium is arranged in the box body (1), the battery module (2) is arranged in the box body (1) and immersed by the immersed medium, the temperature detector (3), the pressure detector (4) and the liquid level detector (5) are all arranged in the box body (1), the temperature detector (3) is used for detecting the temperature of the immersed medium in the box body (1), the pressure detector (4) is used for detecting the pressure in the box body (1), and the liquid level detector (5) is used for detecting the liquid level height of the immersed medium in the box body (1).
2. The submerged energy storage system of claim 1, further comprising a battery management unit (6), said battery management unit (6) being electrically connected to said temperature detector (3), said pressure detector (4) and said level detector (5), respectively, said battery management unit (6) having a preset alert temperature, alert pressure and alert level, said battery management unit (6) issuing an alert signal when the temperature of said submerged medium transported by said temperature detector (3) is equal to or higher than said alert temperature, when the pressure within said tank (1) transported by said pressure detector (4) is equal to or higher than said alert pressure, and when the level of said submerged medium transported by said level detector (5) is equal to or lower than said alert level.
3. An immersion energy storage system according to claim 1, further comprising a thermal management unit (7), the thermal management unit (7) being connected to the tank (1) and forming a circulation flow path for circulating the immersion medium, the thermal management unit (7) being adapted to cool the immersion medium from the tank (1) and to flow the cooled immersion medium back to the tank (1).
4. A submerged energy storage system as claimed in claim 3 wherein the thermal management unit (7) comprises a refrigeration unit connected to the tank (1) and forming the circulation flow path, the refrigeration unit being adapted to exchange heat between the submerged medium and a cooling medium to cool the submerged medium.
5. The submerged energy storage system of claim 4, wherein the temperature detector (3) is electrically connected to the refrigeration unit, the refrigeration unit receiving the temperature of the submerged medium transmitted by the temperature detector (3) and adjusting the amount of cooling of the submerged medium by the refrigeration unit based on the temperature transmitted by the temperature detector (3); The thermal management unit (7) further comprises a temperature detection module, wherein the temperature detection module is used for detecting the temperature of the cooling medium after heat exchange with the immersion medium, the refrigerating unit is electrically connected with the temperature detection module to receive the temperature of the cooling medium transmitted by the temperature detection module, and the cooling amount of the refrigerating unit to the immersion medium is adjusted according to the temperature transmitted by the temperature detection module.
6. The submerged energy storage system of claim 1, further comprising a pressure relief valve (8), wherein the pressure relief valve (8) is provided in the tank (1), and wherein the pressure relief valve (8) is configured to relieve pressure inside the tank (1).
7. The immersion energy storage system according to claim 1, wherein the number of the battery modules (2) is at least two, and the outermost battery modules (2) are arranged corresponding to the temperature detector (3) along the arrangement direction of the battery modules (2).
8. The submerged energy storage system according to claim 7, wherein at least two battery modules (2) are arranged at intervals, so that a space for the passage of the submerged medium is arranged between adjacent battery modules (2), a space for the passage of the submerged medium is arranged between at least the battery modules (2) and the inner side wall surface of the case (1), the battery modules (2) comprise at least two battery packs (21) arranged at intervals, so that a space for the passage of the submerged medium is arranged between adjacent battery packs (21), the battery packs (21) comprise at least two battery cores arranged at intervals, so that a space for the passage of the submerged medium is arranged between adjacent battery cores, and the interval between adjacent battery cores is 3 mm-5 mm.
9. The submerged energy storage system of claim 8, further comprising a bracket (9), wherein the bracket (9) is disposed in the case (1), the bracket (9) is disposed corresponding to at least a portion of the battery modules (2) and is connected to the corresponding battery modules (2), one of the battery modules (2) is connected to the bracket (9) between the adjacent battery modules (2), and a space for the immersion medium to pass through is provided between the other battery module (2) and the bracket (9) between the adjacent battery modules (2).
10. An immersion energy storage system according to claim 1, characterized in that the inner wall surface of the tank (1) is provided with a shock absorbing layer (11).

Description

Immersed energy storage system Technical Field The utility model relates to the field of batteries, in particular to an immersed energy storage system. Background In the related art, the immersion energy storage system is to immerse the battery module in an immersion medium of the box body, and exchange heat to the battery module through the immersion medium so as to reduce the temperature of the battery module in operation. However, the submerged energy storage system in the related art has a problem of poor safety. Disclosure of utility model The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, embodiments of the present utility model provide an immersion energy storage system. The immersion energy storage system of the embodiment of the utility model comprises: The battery module is arranged in the box body and is immersed by the immersion medium, the temperature detector, the pressure detector and the liquid level detector are all arranged in the box body, the temperature detector is used for detecting the temperature of the immersion medium in the box body, the pressure detector is used for detecting the pressure in the box body, and the liquid level detector is used for detecting the liquid level height of the immersion medium in the box body. According to the immersion type energy storage system disclosed by the embodiment of the utility model, the battery module is immersed in the immersion medium in the box body, the temperature of the battery module is reduced through the immersion medium, and the temperature detector, the pressure detector and the liquid level detector are arranged in the box body so as to detect the temperature of the immersion medium, the pressure in the box body and the liquid level of the immersion medium, so that the safe operation of the box body and the battery module is ensured, and therefore, the immersion type energy storage system disclosed by the embodiment of the utility model has higher safety performance. In some embodiments, the immersion energy storage system further comprises a battery management unit electrically connected to the temperature detector, the pressure detector, and the level detector, respectively, the battery management unit having a preset alert temperature, alert pressure, and alert level, the battery management unit issuing an alert signal when the temperature of the immersion medium transmitted by the temperature detector is equal to or greater than the alert temperature, when the pressure within the tank transmitted by the pressure detector is equal to or greater than the alert pressure, and when the level of the immersion medium transmitted by the level detector is equal to or less than the alert level. In some embodiments, the immersion energy storage system further comprises a thermal management unit connected to the tank and forming a circulation flow path for circulating the immersion medium, the thermal management unit being configured to cool the immersion medium from the tank and to return the cooled immersion medium to the tank. In some embodiments, the thermal management unit includes a refrigeration unit coupled to the tank and forming the circulation flow path, the refrigeration unit configured to exchange heat between the immersion medium and a cooling medium to cool the immersion medium. In some embodiments, the temperature detector is electrically connected to the refrigeration unit, and the refrigeration unit receives the temperature of the immersion medium transmitted by the temperature detector and adjusts the cooling amount of the immersion medium by the refrigeration unit according to the temperature transmitted by the temperature detector; The thermal management unit further comprises a temperature detection module, wherein the temperature detection module is used for detecting the temperature of the cooling medium after heat exchange with the immersion medium, the refrigerating unit is electrically connected with the temperature detection module to receive the temperature of the cooling medium transmitted by the temperature detection module, and the cooling amount of the refrigerating unit to the immersion medium is adjusted according to the temperature transmitted by the temperature detection module. In some embodiments, the submerged energy storage system further comprises a pressure relief valve disposed in the tank for relieving pressure inside the tank. In some embodiments, the battery modules are at least two in sequence, and the outermost battery module is disposed corresponding to the temperature detector along the arrangement direction of the battery modules. In some embodiments, at least two battery modules are arranged at intervals, so that a space for the immersion medium to pass through is formed between every two adjacent battery modules, a space for the immersion medium to pass through is formed between at least one battery module an