Tactile feedback actuator, electronic device using same, and method of operating same
US11210912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Aug 3, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The tactile feedback actuator generally has a stopper, a damper, a hammer path between the stopper and the damper, a coil element fixedly mounted relative to the hammer path, and a magnetic hammer guidingly mounted for movement along the hammer path. The magnetic hammer has two opposite ends. Each end of the magnetic hammer has a corresponding permanent magnet. The two permanent magnets have opposing polarities. The magnetic hammer is electromagnetically engageable by a magnetic field emitted upon activation of the coil element so as to be longitudinally slid along the hammer path in any one of two opposite directions depending on a polarity of activation of the coil element. The stopper has a striking surface adapted for stopping the magnetic hammer, and the damper is adapted for decelerating the magnetic hammer as the magnetic hammer is longitudinally slid towards the damper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.