Electret capacitor microphone and making method

Abstract

The invention discloses an electret condenser microphone, comprising: a housing part, which has a central axis and includes a circular sound inlet part and a cylindrical side part integrally formed with the sound inlet part, and the side part of the housing part has adjacent Following the first part of the sound inlet portion of the housing part, and the second part away from the sound inlet part of the housing part, the second part of the side part of the housing part is bent radially inwards towards the central axis of the housing part; the printed wiring board, It is arranged in the housing part and kept in contact with the second part of the side part of the housing part; the electrical insulation part is arranged on the printed wiring board; the electrode plate is arranged on the electrical insulation part; and the electrical connection part, It is interposed between the printed wiring board and the electrode plate, so that the printed wiring board and the electrode plate are electrically connected to each other.

Description

technical field [0001] The present invention relates to an electret condenser microphone for various audio equipment such as a portable phone and a manufacturing method thereof, and more particularly relates to an electret condenser microphone and a manufacturing method thereof, which is equipped with an electrode plate and a membrane Constructed capacitor unit for receiving sound waves for conversion into sound signals representing the sound waves. Background technique [0002] Hitherto, there have been disclosed many kinds of conventional electret condenser microphones, all of which are equipped with a capacitor unit composed of electrode plates and membranes for receiving sound waves to be converted into sound signals representing the sound waves. [0003] Conventional electret condenser microphones of this type have hitherto been used in various audio equipment such as portable telephones. exist Figure 8 and Figure 9 A typical example of a con...

AI Technical Summary

Problems solved by technology

[0012] However, conventional electret condenser microphones suffer from such problems as Figure 10C As shown, in the releasing step, each of the second portion 915 of the side portion 913 of the housing member 910, and the electrical connection member 940 are spaced apart from the printed wiring board 960 because the metal is made of The electrical connection part 940 prevents the second part 915 of the side part 913 of the housing part 910 from moving toward the arrow 901 (as Figure 10B As shown), the given direction shown in Fig. Figure 10C shown)

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