Battery explosion-proof device and battery pack comprising the same
AssigneesShenzhen BYD Auto R&D Company Limited, BYD Company Limited
InventorsHu WAN, Zhiwei TONG, Qing LAI, Jianhua ZHU
Life of this patent
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Abstract
A battery explosion-proof device battery explosion-proof device includes a valve body, a rupture plate, and a protecting cover. The valve body includes a base portion and a shaft portion connected with the base portion. The shaft portion may be formed with threads on an external circumferential surface thereof and with a venting passage. The rupture plate may be disposed inside a concaved portion of the base portion for sealing the venting passage. The protecting cover covers the concaved portion.
Claims18
A battery explosion-proof device, comprising:
- a valve body including:
- a base portion having an opening;
- and
- a shaft portion connected with the base portion, wherein the shaft portion includes threads on an external circumferential surface thereof, and the valve body includes a venting passage in communication with the opening;
- a rupture plate disposed inside the opening for sealing the venting passage;
- and
- a protecting cover configured to cover the opening.
A battery pack, comprising:
- a lower shell;
- at least one battery module accommodated in the lower shell;
- and
- an upper shell mated with the lower shell for sealing the battery pack, wherein
- at least the upper shell includes a battery explosion-proof device, which includes:
- a valve body including:
- a base portion having an opening;
- and
- a shaft portion connected with the base portion, wherein the shaft portion includes threads on an external circumferential surface thereof, and the valve body includes a venting passage in communication with the opening;
- a rupture plate disposed inside the opening for sealing the venting passage;
- and
- a protecting cover configured to cover the opening.
Dependencies are inferred from the claim text.