Thermal switch for battery protection
US5070427A · kind A · utility
14Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1990 |
| Grant date | Dec 3, 1991 |
| Priority date | — |
| Expiry date | Jan 31, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2200/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Lithium batteries are protected from a runaway condition marked by over-current and high temperature by a temperature sensor having a thermally conductive housing in thermal contact with all the cells of the battery and containing a fusible column which melts when a limit temperature is reached to open a switch in series with the battery. The switch may be the same switch which activates the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.