IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0254799
(2014-04-16)
|
등록번호 |
US-9979001
(2018-05-22)
|
우선권정보 |
CN-2011 2 0418896 U (2011-10-28) |
발명자
/ 주소 |
- Wan, Hu
- Tong, Zhiwei
- Lai, Qing
- Zhu, Jianhua
|
출원인 / 주소 |
- SHENZHEN BYD AUTO R&D COMPANY LIMITED
|
대리인 / 주소 |
Finnegan, Henderson, Farabow, Garrett & Dunner LLP
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
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 surf
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.
대표청구항
▼
1. A battery explosion-proof device, comprising: a valve body including: a base portion having an opening; anda 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 c
1. A battery explosion-proof device, comprising: a valve body including: a base portion having an opening; anda 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; anda protecting cover configured to cover the opening, the protecting cover comprising a seal plate formed with a central hole;a net portion covering the central hole; anda suspension clip portion formed on a surface of the seal plate facing the opening;wherein the base portion is formed with a second opening at a side wall thereof to be buckled with the suspension clip portion. 2. The battery explosion-proof device of claim 1, wherein the opening includes a concave portion. 3. The battery explosion-proof device of claim 2, wherein an annular groove around the shaft portion is formed at a surface of the base portion where the base portion is connected with the shaft portion. 4. The battery explosion-proof device of claim 1, wherein the base portion is formed with a mounting surface where the rupture plate is disposed, and the venting passage penetrates through the mounting surface to be in communication with the opening. 5. The battery explosion-proof device of claim 4, wherein the rupture plate is welded to the mounting surface. 6. The battery explosion-proof device of claim 5, wherein a circumferential surface of the venting passage is connected with the mounting surface via a transition surface. 7. The battery explosion-proof device of claim 6, wherein the rupture plate is formed with an arcual dent which has a diameter larger than an inner diameter of the venting passage and smaller than an external diameter of the transition surface. 8. The battery explosion-proof device of claim 1, wherein the rupture plate is made of steel, nickel, copper, aluminum material, or stainless steel. 9. The battery explosion-proof device of claim 7, wherein the arcual dent has a trapezoidal, reversed triangular, rectangular, arcual, or circular cross section. 10. The battery explosion-proof device of claim 5, wherein the rupture plate is welded at the mounting surface via electron beam welding or laser welding. 11. A battery pack, comprising: a lower shell;at least one battery module accommodated in the lower shell; andan 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; anda 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; anda protecting cover configured to cover the opening, the protecting cover comprising a seal plate formed with a central hole;a net portion covering the central hole; anda suspension clip portion formed on a surface of the seal plate facing the opening;wherein the base portion is formed with a second opening at a side wall thereof to be buckled with the suspension clip portion. 12. The battery pack of claim 11, wherein the shaft portion is threadedly connected with the upper shell. 13. The battery pack of claim 11, wherein the shaft portion penetrates through an installing hole on the upper shell and the shaft portion is tightened with the upper shell via a mating nut. 14. The battery pack of claim 11, wherein the opening includes a concave portion. 15. The battery pack of claim 11, wherein an annular groove around the shaft portion is formed at a surface of the base portion where the base portion is connected with the shaft portion. 16. The battery pack of claim 11, wherein the protecting cover comprises: a seal plate formed with a central hole;a net portion covering the central hole; anda suspension clip portion formed on a surface of the seal plate facing the opening. 17. A battery explosion-proof device, comprising: a valve body including: a base portion having an opening; anda 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 formed with an arcual dent which has a diameter larger than an inner diameter of the venting passage; anda protecting cover configured to cover the opening.
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