发明名称 |
ELECTRO-ACOUSTIC CONVERTER, ELECTRONIC DEVICE, WATERPROOF COVER, AND METHOD FOR TESTING VENTILATION OF ELECTRO-ACOUSTIC CONVERTER |
摘要 |
<p>It is an object to provide an electro-acoustic converter which can be subjected to air leakage test allowing a gas to pass through a waterproof film in such a condition that the waterproof film is attached to the electro-acoustic converter. An electro-acoustic converter is produced, which includes: a casing having a sound hole; and a diaphragm provided in the casing, wherein the sound hole is covered with the waterproof film to form a closed space, and the closed space is in communication with the outside of the casing through a vent for air leakage test.</p> |
申请公布号 |
EP2187653(A1) |
申请公布日期 |
2010.05.19 |
申请号 |
EP20080791997 |
申请日期 |
2008.07.31 |
申请人 |
JAPAN GORE-TEX INC. |
发明人 |
MURAYAMA, SHIGEHARU |
分类号 |
H04R1/00;G01M3/26;H04M1/03 |
主分类号 |
H04R1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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