Control and power module for brushless motor
US11689082B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2022 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Aug 10, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10522
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power tool including an electric motor is provided. The tool includes a substantially disc-shaped printed circuit board (PCB), power switches mounted on the PCB; magnetic sensors mounted on the PCB facing the motor; a heat sink in thermal communication with the power switches disposed between the PCB and the electric motor; and a molded casing structurally securing the heat sink relative to the PCB. The molded casing includes a center opening, at least one first opening provided at a first radial distance from the center opening arranged to receive the magnetic sensors therein, and at least one second opening provided at a second radial distance from the center opening arranged to securely receive the heat sink therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.