Earphone having nozzle-integrated structure with drum safety filter applied thereto
US11006196B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2020 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2460/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is an earphone having a nozzle-integrated structure with a DSF applied thereto. The earphone includes: a housing formed as a penetrated body, and configured such that a nozzle portion is provided therein; a retainer configured to be fastened inside the housing; a magnet configured to generate magnetic force; a yoke configured to concentrate magnetic force; a plate configured to collect magnetic force; a voice coil configured to generate a magnetic field and vibrate through the interaction with the magnet; and a diaphragm configured to vibrate and generate sound. A penetrated sleeve is provided inside the housing and forms a nozzle portion. A drum safety filter (DSF) hole is formed in one side of the edge of a seating surface and a mesh member is disposed below a portion of the retainer in which the DSF hole is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.