Fire-fighting fluid storage apparatus of battery pack

Patent metadata

Field	Value
Publication number	US-2022226682-A1
Application number	US-202217707245-A
Country	US
Kind code	A1
Filing date	Mar 29, 2022
Priority date	Dec 28, 2018
Publication date	Jul 21, 2022
Grant date	—

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.

2 . 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.

3 . The fire-fighting fluid storage apparatus according to claim 2 , wherein the diaphragm is an Ethylene Propylene Diene Monomer (EPDM) diaphragm.

4 . The fire-fighting fluid storage apparatus according to claim 1 , wherein the fluid outlet is configured to be located below the fluid inlet.

5 . The fire-fighting fluid storage apparatus according to claim 4 , 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.

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

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

8 . A fire-fighting fluid storage apparatus of a battery pack, comprising:
a box, wherein the box has an inner cavity, and the box is provided with a fluid inlet and a fluid outlet; the fluid inlet is located above the fluid outlet; and the inner cavity of the box is configured to store fire-fighting fluid and compressed gas, and the fire-fighting fluid in the inner cavity of the box is configured to be discharged from the fluid outlet under the action of the compressed gas.

Assignees

• Contemporary Amperex Technology Co Ltd

Inventors

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

Classifications

• H01M10/6567

  Liquids · CPC title

• H01M2200/10

  Temperature sensitive devices · CPC title

• A62C35/023

  the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas (for foam generation A62C5/02) · CPC title

• B60L1/00

  Supplying electric power to auxiliary equipment of vehicles (circuit arrangements for charging batteries H02J7/00) · CPC title

• H01M2220/20

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