Actuator of a tactile interface module, tactile interface module and method for generating haptic feedback
US10620703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2016 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Nov 9, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2003/008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to an actuator (7) which comprises: a frame (11) intended for being in contact with the tactile interface via a contact wall (13) so as to transmit haptic feedback to the tactile surface; a stator (15) connected to the frame (11); a movable core (19) connected via at least one resilient element to the frame (11) and intended for being moved by the stator (15) so as to generate the haptic feedback; an electromagnet (17) and at least one permanent magnet (20), one of which is supported by the stator and the other by the movable core (19). The actuator (7) also comprises a shock absorber (23) arranged between the movable core (19) and the contact wall (13), and said resilient element is sized so that, when the electromagnet is not powered, the movable core (19) applies a bearing force towards the contact wall (13) and, when the electromagnet is powered according to a predetermined polarisation, the movable core (19) moves away from the contact wall (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.