Battery pack with an improved cooling structure
US6566005B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2000 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery pack (1) includes an air intake port (9), air discharge ports (11), first air passages (24), and a second air passage (25). Cooling air introduced into the battery pack through the air intake port (9) flows around and through two cell groups contained in the pack before exiting to the pack from the discharge ports (11). As the intake port and the discharge ports are both provided at an upper enclosure (4) of the battery pack that is set on a charger (50) for charging or an electric power tool as a power source, neither intake port nor the discharge ports are exposed to the exterior environment whether the pack is set on the charger or attached to a power tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.