Power tool with compact motor assembly
US11509193B2 · kind B2 · utility
1Cited by
71References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2020 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Dec 16, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K29/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brushless direct-current (BLDC) motor is provided with a stator assembly including a stator core and stator windings wound around stator teeth, a rotor shaft extending along a longitudinal axis, and a rotor including a rotor core mounted on the rotor shaft supporting at least one permanent magnet. A circuit board is provided including a main body and at least one leg radially projecting from the main body to support at least one magnetic sensor near the permanent magnet. The leg of the circuit board oriented along a radial plane that intersects the stator windings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.