Reinforced actuators for distributed mode loudspeakers
US10462574B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Jan 29, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/15
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An actuator includes a frame that includes a panel extending in a plane and one or more pillars extending perpendicular from the plane. The actuator further includes a magnetic circuit assembly that includes a magnet and a voice coil, which are moveable relative to each other along an axis perpendicular to the plane of the panel. The actuator also includes one or more suspension members attaching the frame to a first component of the magnetic circuit assembly. Each suspension member includes a vertical segment attaching the suspension member to a corresponding one of the pillars. Each suspension member also includes a first arm extending away from the corresponding pillar to an end attached to the first component of the magnetic circuit assembly. During operation of the actuator, the first arm of the suspension member flexes to accommodate axial displacements of the magnet relative to the voice coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.