A pressure relief valve includes a valve body; a valve cover matched with the valve body; a flexible element positioned between the valve body and the valve cover and having a through hole; and a breathable film covering the through hole. The flexible element has a compression portion at least partially surrounding the through hole and configured to be deformable to make the flexible element displace relative to the valve body. A battery pack can use the pressure relief valve. Due to the use of the pressure relief valve, internal pressure of the battery pack can be controlled.
Pressure relief valve for battery pack and battery pack
2025-01-28
Patent
Electronic Resource
English
IPC: | F16K VALVES , Ventile / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
TRACTION BATTERY PACK PRESSURE RELIEF DEVICE WITH RATCHET MECHANISM
European Patent Office | 2025
|Explosion-proof valve for battery pack, related battery pack and vehicle
European Patent Office | 2024
|