Speaker module
US11202134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2016 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | Jul 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a speaker module, comprising a housing and a speaker unit located in an inner cavity of the housing and dividing the inner cavity into a front acoustic cavity and a rear acoustic cavity separated from each other, wherein the housing is additionally provided with a pressure relief device configured to communicate the rear acoustic cavity with an external environment and implement an acoustic seal, the pressure relief device comprises a pressure relief hole extending through a thickness direction of the housing and provided with a gland on one side close to the rear acoustic cavity, and a pressure relief groove is disposed at a surface of the gland close to the pressure relief hole, one end of the pressure relief groove is connected with the pressure relief hole, the other end of the pressure relief groove is led out of an end of the gland, and the pressure relief groove and the pressure relief hole together make up a pressure relief passage of the rear acoustic cavity. The pressure relief grooves of the pressure relief devices of the speaker modules are arranged on the gland, which makes processing easier and can effectively improve the yield of the s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.