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Electret microphone comprising spring washer

A technology of electret microphones and gaskets, which is applied to electret electrostatic transducers, electrostatic transducer microphones, sensors, etc., can solve the problems of reducing manufacturing output, diaphragm bending, and errors, and prevent manufacturing costs from increasing , The effect of preventing an increase in the number of parts and improving manufacturing yield

Inactive Publication Date: 2006-08-16
BSE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conventional PCB has the above-mentioned problems due to errors in the manufacturing process, and the problems also exist in the diaphragm and the rear electret, causing the diaphragm to bend and the distance between the diaphragm and the rear electret to increase. Big
The increase or decrease in said bending and distance causes the ECM to become less sensitive and fail, reducing manufacturing yield

Method used

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  • Electret microphone comprising spring washer
  • Electret microphone comprising spring washer
  • Electret microphone comprising spring washer

Examples

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Embodiment Construction

[0038] figure 1 is a sectional view showing a back-type electret condenser microphone according to a first embodiment of the present invention, and figure 2 is the assembled figure 1 Cutaway view of a condenser microphone.

[0039] refer to figure 1 and figure 2 , The ECM according to the present invention includes: a housing 1 , a washer spring 2 , a vibration plate 3 , a spacer 5 , a back plate 6 , a first base ring 8 , a second base ring 9 and a printed circuit board 10 .

[0040]The housing 1 accommodates the washer spring 2, the vibrating plate 3, the spacer 5, the back plate 6, the first base ring 8 and the second base ring 9, and protects internal components from external impact. In addition, the casing 1 prevents noise and electromagnetic interference noise from entering from the outside, so that the conversion of sound into electrical signals can be performed smoothly. The casing 1 is electrically connected to the vibration plate 3 and the printed circuit board...

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PUM

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Abstract

The present invention relates to a condenser microphone which provides a normal operation and an improvement of yield. In order to achieve the above object of the invention, there is provided a electret microphone comprising: a casing; an internally housed components housed by the casing, the components including a vibrating plate, a spacer, a back plate, a first base ring and a second base ring; a printed circuit board for receiving an electrical signal from at least one of the vibrating plate and the back plate; a washer spring for providing an elasticity between the components, and among the components, the casing and the printed circuit board. In accordance with the condenser microphone including the washer spring, the microphone operates normally even an error occurs during a manufacturing process, a uniform product quality is maintained, and reduces a defect rate to remarkably improve a manufacturing yield. In addition, in accordance with the condenser microphone including the washer spring, the washer spring may be easily applied, and an effective and reasonable selection of the microphone and an application of the manufacturing method thereof are possible by showing an effective characteristic and a resulting effect and function.

Description

technical field [0001] The present invention relates to a condenser microphone, and more particularly to a condenser microphone providing normal operation and improved yield. Background technique [0002] Recently, multimedia devices (eg, MP3 players, camcorders, and mobile devices) used in daily life generally provide a function of recording sounds generated by the surrounding environment. In particular, one of the reasons why a recording function of a multimedia device that tends to be miniaturized and high-performance performs its designated role is a microphone installed in the miniaturized multimedia device. [0003] Common microphones are electrodynamic microphones using magnets and condenser microphones using capacitance or the principle of capacitors. In the case of an electrodynamic microphone, a magnet for generating a magnetic field is housed inside the microphone to utilize induced electromotive force. An electrodynamic microphone consists of a coil that is att...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R19/01H04R19/04
CPCH04R19/016H04R31/006
Inventor 朴成镐林俊
Owner BSE CO LTD
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