Vibration motor
US11670997B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2021 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Aug 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibration motor includes a stationary part, and a movable element which has a magnet and can vibrate in one direction. The stationary part includes a coil which applies a driving force to the magnet due to energization, a housing which houses the movable element and the coil therein, a first lid part which closes an end portion of the housing on one side in the one direction, and a first bearing part. The first bearing part is disposed inside the housing on the other side in the one direction from the first lid part. The first bearing part includes a bearing inner circumferential surface disposed with a gap therebetween with respect to an outer circumferential surface of a portion of the movable element on one side in the one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.