Linear vibration motor
US10079531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2017 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Jun 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear vibration motor is disclosed. The linear vibration motor, includes a housing provided with an accommodation space; a vibrator accommodated in the accommodation space; and an electromagnet accommodated in the accommodation space. The vibrator includes a weight having a through-hole and a plurality of permanent magnets engaging with an inner wall of the through-hole. A number of elastic connecting parts are accommodated in the accommodation space, one end of the elastic connecting part connected with the housing and the other end connected with the weight for suspending the vibrator in the accommodation space. The electromagnet includes an iron core and a coil around the iron core for producing magnet fields interacting with the permanent magnets further for producing attracting and repelling force to drive the vibrator to vibrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.