Protection device used in battery pack, battery pack and vehicle
US11056748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2017 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Nov 26, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery pack comprises a plurality of batteries. The protection device is disposed between two adjacent batteries and comprises: a first connecting assembly, a second connecting assembly and a conductive connecting assembly. The protection device has a normal state and an alarm state. When the protection device is in the normal state, the first connecting assembly and the second connecting assembly are spaced apart, and the overload protection circuit is open. When the protection device is in the alarm state, the first connecting assembly is electrically connected with the housing of the first battery, the second connecting assembly is electrically connected with the housing of the second battery, at least one of the first connecting assembly and the second connecting assembly moves to be electrically connected with each other, and the overload protection circuit is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.