Linear vibration motor
US10384232B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2017 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Jan 7, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/18
- 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. The electromagnet is located in the through-hole and separated from the permanent magnets. 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.