Circuits for heating storage batteries
US4171508A · kind A · utility
32Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1977 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | Dec 8, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery heating circuit comprising a transformer having a primary winding for connection to an a.c. supply and a secondary winding, and at least two pairs of batteries. The two batteries of each pair are connected in series and the series combinations of the pairs of batteries are connected in parallel between d.c. terminals. The secondary winding is connected between the common terminals of each pair of batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.