Electronic device, PCB and electric tool
US11424088B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2019 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Jan 8, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H15/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention provides an electronic device, a PCB and an electric tool; comprises a main body, a first electric connecting part, a variable resistor, a speed regulating contact, a reversing electric connecting part, a reversing contact, a speed regulating handle and a reversing handle, the first electric connecting part is fixedly connected with the main body, and one end of the first electric connecting part is exposed out of the main body; one end of the speed regulating handle is of a cylindrical structure, the end part of the speed regulating handle is provided with an opening, one end of the main body is provided with a column, the opening end of the speed regulating handle is movably sleeved on the column through an elastic piece and forms a first space with the main body; the speed regulating contact and the variable resistor are arranged in the first space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.