Power module for a brushless motor
US11418089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2020 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Aug 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2203/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power tool is provided, including a housing; an electric brushless DC motor disposed within the housing; and a power module disposed within the housing and electrically coupled to the motor. The power module includes a circuit board, a first set of power switches mounted on a first surface of the circuit board, a second set of power switches mounted on a second surface of the circuit board substantially opposite the first set of power switches and electrically coupled to the first set of power switches forming an inverter bridge circuit, power terminals arranged on a side edge of the circuit board and coupled to the output of the inverter bridge, a first heat sink mounted on the first surface of the circuit board covering the first set of power switches, and a second heat sink covering the first heat sink and at least portions of the power terminals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.