Low-height key structure
US11099656B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2020 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2215/016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A low-height key structure includes a keycap, a supporting plate, a connecting element, a circuit board and an elastic element. The circuit board is disposed on the supporting plate. A switch element is installed on the circuit board. The connecting element is connected with the keycap and the supporting plate. The keycap is movable upwardly or downwardly relative to the supporting plate through the connecting element. The elastic element is arranged between the keycap and the circuit board. The elastic element includes a contacting part and an elastic support part, which are connected with each other. The contacting part includes a bowl-shaped concave structure. A raised structure is protruded from a middle region of a bottom side of the bowl-shaped concave structure. A top surface of the raised structure is at a level lower than or equal to a top surface of the contacting part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.