Charging system for electric power tool, battery pack for electric power tool, and battery charger for electric power tool
US8330426B2 · kind B2 · utility
87Cited by
11References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jan 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Each of a battery charger and a battery pack has a microcomputer. The respective microcomputers mutually perform data communication while the battery pack is being charged by the battery charger, and confirm an operational state of the microcomputer of the communication counterpart (mutual operation confirmation) based on a result of the data communication. When an abnormality of one of the microcomputers is detected, the other microcomputer executes a predetermined process for stopping charging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.