Receiver module having pressure equilibrium structure
US11336983B1 · kind B1 · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2021 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Mar 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a receiver module including: a casing including an upper casing having a sound insulation hole and a lower casing coupled to the upper casing and having a ventilation hole; a receiver installed in an internal space defined by the casing and having a frame, a magnetic circuit, a voice coil, and a diaphragm; and an air module disposed to surround a lower surface and an outer circumference of the receiver, fixed to an inner circumference of the casing, and having an air path connecting the sound insulation hole and the ventilation hole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.