Fire-fighting fluid storage apparatus of battery pack

Patent metadata

Field	Value
Publication number	US-11324978-B2
Application number	US-202117358959-A
Country	US
Kind code	B2
Filing date	Jun 25, 2021
Priority date	Dec 28, 2018
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

The present application is provided with a fluid storage apparatus of a battery pack, including: a box, where the box has an inner cavity; a partition member, where the partition member is located in the inner cavity of the box, and the partition member divides the box into a fluid storage portion and a gas storage portion. The fluid storage portion is used to store spraying liquid and the fluid storage portion has a fluid outlet; the gas storage portion is used to store gas and the gas storage portion has a fluid inlet. And the partition member is configured to move toward the fluid outlet under the action of compressed gas in the gas storage portion.

First claim

What is claimed is:

1. A fire-fighting fluid storage apparatus of a battery pack, comprising:
a box, wherein the box has an inner cavity;
a partition member, wherein the partition member is located in the inner cavity of the box, and the box is divided into a liquid storage portion and a gas storage portion by the partition member;
wherein the liquid storage portion is provided with a fluid outlet, and the gas storage portion is provided with a fluid inlet,
a fire-fighting fluid in the liquid storage portion is configured to be driven by the partition member to move toward the fluid outlet under the action of compressed gas in the gas storage portion;
wherein the fluid outlet is configured to be located below the fluid inlet, a liquid storage bottom wall of the liquid storage portion comprises a first planar portion and an inclined portion, and the inclined portion is inclined downward relative to the first planar portion;
the fluid outlet is arranged at a liquid storage side wall of the liquid storage portion, and a center line of the fluid outlet is located below the first planar portion.

2. The fire-fighting fluid storage apparatus according to claim 1 , wherein the partition member comprises a partition plate, the partition plate is configured to be moved relative to an inner wall of the box under the action of the compressed gas in the gas storage portion, to push the fire-fighting fluid in the liquid storage portion to move toward the fluid outlet.

3. The fire-fighting fluid storage apparatus according to claim 2 , wherein, a slide sealing member is arranged between an outer peripheral wall of the partition plate and the inner wall of the box, and the slide sealing member comprises a pack sealing.

4. The fire-fighting fluid storage apparatus according to claim 2 , wherein the liquid storage portion and the gas storage portion are distributed along a lengthwise direction of the box, and the partition member is configured to be moved along the lengthwise direction of the box.

5. The fire-fighting fluid storage apparatus according to claim 2 , wherein the liquid storage portion and the gas storage portion are distributed along a height direction of the box, and the liquid storage portion is located below the gas storage portion;
and the partition member is configured to be moved along the height direction of the box.

6. The fire-fighting fluid storage apparatus according to claim 1 , wherein the partition member comprises a diaphragm, the diaphragm is configured to be expanded under the action of the compressed gas in the gas storage portion, to push the fire-fighting fluid in the liquid storage portion to move toward the fluid outlet.

7. The fire-fighting fluid storage apparatus according to claim 6 , wherein the diaphragm is an Ethylene Propylene Diene Monomer (EPDM) diaphragm.

8. The fire-fighting fluid storage apparatus according to claim 1 , wherein the fluid inlet is arranged at a box top wall or a box side wall of the box, and the fluid outlet is arranged at a liquid storage bottom wall of the liquid storage portion;
along the height direction of the box, a distance between the fluid inlet and a bottom of the box is greater than a distance between the fluid outlet and the bottom of the box.

9. The fire-fighting fluid storage apparatus according to claim 1 , wherein the liquid storage bottom wall of the liquid storage portion further comprises a second planar portion, the second planar portion is located under the first planar portion, and the first planar portion is connected to the second planar portion by the inclined portion;
wherein the second planar portion is located below other portions of the box.

10. The fire-fighting fluid storage apparatus according to claim 9 , wherein a mounting portion is provided and connected to an outer wall of the box, and the mounting portion extends downward below the box.

11. The fire-fighting fluid storage apparatus according to claim 10 , wherein the mounting portion is provided with a first mounting hole and a second mounting hole;
and between the first mounting hole and the second mounting hole, one is a round hole, and the other is an oblong hole.

12. The fire-fighting fluid storage apparatus according to claim 10 , wherein the mounting portion is provided at one side of the fluid inlet.

13. The fire-fighting fluid storage apparatus according to claim 10 , wherein the second planar portion is configured to support an external equipment, the mounting portion is configured to be bolted to the external equipment.

14. The fire-fighting fluid storage apparatus according to claim 1 , wherein the partition member is configured to a plate-like structure.

15. The fire-fighting fluid storage apparatus according to claim 1 , wherein the partition member is configured to a retractable structure.

16. The fire-fighting fluid storage apparatus according to claim 1 , wherein the fire-fighting fluid includes fluorinated liquid.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

• Hong Jiarong
• Huang Xiaoteng
• Wang Wenli
• Xiang Yanhuo

Classifications

• H01M50/673

  Containers for storing liquids; Delivery conduits therefor · CPC title

• H01M10/42

  Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells (H01M10/60 takes precedence) · CPC title

• H01M10/613

  Cooling or keeping cold · CPC title

• B60L3/0046

  relating to electric energy storage systems, e.g. batteries or capacitors · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title