Electric power tool including a plurality of circuit boards
US8810085B2 · kind B2 · utility
27Cited by
3References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2009 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Feb 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/33
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.