Electret capacitor microphone

A condenser microphone and electret technology, applied in the field of converters, can solve problems such as manufacturing difficulties, lower microphone failure temperature, and complex structure
CN1741684AInactive Publication Date: 2006-03-01SHANDONG GETTOP ACOUSTIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG GETTOP ACOUSTIC
Publication Date
2006-03-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

An electret capacity microphone is prepared as spraying a lacquer insulation layer on external cylindrical surface of electrode ring ; setting paster electrode for sticking on microphone and printed circuit board on printed circuit board ; making metal shell opening end bend radially towards printed circuit board to keep fixed contact between back electrode board support component , back electrode board , insulation pad as well as vibration film plate and electrode ring as well as printed circuit board , applying material standing to temperature of sticking process to prepare electret film , insulation pad , vibration film plate , nonmetal model , electrode ring and lacquer insulation layer .
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Description

technical field

[0001] The present invention relates to a transducer for receiving sound waves for conversion into electrical signals representing the sound waves, and more particularly to an electret condenser microphone for use in various audio equipment such as portable telephones. Background technique

[0002] A variety of electret microphones have been disclosed in the prior art, all of which are equipped with a capacitor unit composed of electrode plates and membranes for receiving sound waves for conversion into electrical signals representing the sound waves.

[0003] On June 2, 1999, the Chinese patent disclosed a technical solution named "Electret Condenser Microphone" and the patent number is "97246455.7". Its basic structure is as follows Figure 9 Shown: the shell 72 and the cavity 76 of the microphone are made of metal materials with a through hole at the bottom and a cylindrical shape with an opening at one end. The plastic ring 75 and the spacer ring 77 are ci...

Claims

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