Vibration motor
US10148161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2016 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Aug 4, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibration motor includes a housing having an accommodation space, a cover plate connecting with the housing, a first vibration system and a second vibration system supported in the accommodation space elastically. The first vibration system includes a first weight and at least one permanent magnet. The second vibration system includes a second weight and at least one coil. A first limiting block is arranged on the cover plate, and a second limiting block is arranged on the bottom wall of the said housing. A first limiting hole corresponding to the first limiting block is formed for receiving at least part of the first limiting block; and a second limiting hole corresponding to the second limiting block is formed for receiving part of the second limiting block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.