Flat linear vibration motor
US9935535B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2015 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Dec 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat linear vibration motor is disclosed. The flat linear vibration motor includes a housing having an accommodation space; a first magnet received in the accommodation space and fixed in the housing; and a vibrator unit suspended in the housing. The vibrator unit includes a clump weight, a third magnet, a driving magnet, and a fourth magnet; a second magnet fixed in the housing, the first magnet, the vibrator unit and the second magnet arranged one by one along a vibration direction of the vibrator unit; engaging assemblies suspending the vibrator unit inside the housing and driving the vibrator unit to move along the vibration direction; wherein the flat linear vibration motor further includes a ring driving coil received in the accommodation space, the ring driving coil being spaced from and surrounding the driving magnet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.