Micro speaker device with water-proof structure
US10433053B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2018 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Dec 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a micro speaker device with a water-proof structure by which water entering a protector is prevented from entering a gap formed between a top face of the protector and a bottom face of an upper plate of an outer casing and a gap formed between a bottom face of the protector and a top face of an outer peripheral portion of a vibration plate. For this end, the protector includes: an upper portion extending upward so as to be in close contact with a bottom face of the upper plate of the outer casing; and a lower portion, wherein the lower portion includes: a sealing member made of a rubber material, wherein the sealing member extends downward to closely contact a top face of the outer peripheral portion of the vibration plate; and a support member made of a plastic material, wherein the support member closely contacts a side face of the sealing member to support the sealing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.