Temperature control method and structure for a battery pack
US6448741B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 5, 2001 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Mar 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Cylindrical battery modules (9) composed of a plurality of serially connected cells (7) and arranged in parallel and stacked in piles within a holder case (10) are cooled with a forced current of air supplied from the underside. The battery modules (9a) located on the most upstream side of the air current are covered with film tubes (2), so as to prevent them from being cooled more than the other battery modules (9), thereby achieving uniformity in the temperatures of the battery modules. Temperature equalization is further improved by providing film tubes (2) to the several tiers of the battery modules such that the film tubes for covering upstream battery modules (9) have larger diameters than those for downstream battery modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.