Linear vibration motor
US11831215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Jul 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
One of the objects of the present invention is to provide a linear vibration motor which enhances vibration performance. To achieve the above-mentioned object, the present invention provides a linear vibration motor having a housing body with an accommodation space; a vibration unit accommodated in the accommodation space; an elastic member suspending the vibration unit in the accommodation space; and a coil assembly fixed to the housing body for driving the vibration unit to vibrate. The vibration unit includes a magnet assembly having a plurality of first magnets arranged along a vibration direction of the vibration unit, and at least one second magnet sandwiched between two adjacent first magnets, for forming a magnetic circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.