Vibration motor and haptic device
US11876429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2022 |
| Grant date | Jan 16, 2024 |
| Priority date | — |
| Expiry date | Jul 16, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibration motor includes a stationary portion and a movable portion vibrable in an axis direction with respect to the stationary portion. The stationary portion includes a coil and a housing. The housing includes a first region expanding in a first direction orthogonal to the axis direction, and a second region disposed on one side in a second direction orthogonal to the axis direction and the first direction relative to the first region and expanding in the first direction. In a cross-section across the axis direction, a distance in the second direction between the second region and the first region is longest at a center in the first direction of the first region. In the cross-section, a shape formed by the first and second regions is asymmetric with respect to an axis extending parallel to the first direction through a center of the housing in the second direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.