Power tool
US11942888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2022 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Oct 13, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01H5/098
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power tool includes a power a motor, a driver circuit, a capacitor, a capacitor switch, a temperature detection unit, and a controller. The capacitor is configured to filter out current spikes in a power supply. The capacitor switch is configured to control a working state of the capacitor. The temperature detection unit is configured to detect a temperature of a related object. The controller is configured to: acquire the temperature of the related object; control the capacitor switch to be in a first on or off state such that the capacitor works in a first working state when the temperature is lower than a temperature threshold; and control the capacitor switch to be in a second on or off state such that the capacitor works in a second working state when the temperature is higher than the temperature threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.