Structure of microspeaker
US10631080B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2019 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2400/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is the structure of a microspeaker. The structure of the microspeaker includes: a frame configured to have an internal space, a magnetic field part disposed inside the frame and configured to form an air gap along with the frame, and a diaphragm configured to vibrate vertically in response to the operation of a voice coil located inside the air gap. A duct configured to guide an air flow is formed in the circumferential direction of the frame. At least one frame hole is formed such that air enters the duct from the internal chamber of the frame. At least one duct sound outlet is formed such that air having entered the duct is discharged to the outside through the guide path of the duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.