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Microphone

A microphone and sound hole technology, applied in the field of microphones, can solve the problems of easy generation of echoes and whistling sounds, and mutual interference of microphones, and achieve the effect of preventing echoes and whistling sounds.

Active Publication Date: 2011-04-13
SHENZHEN HORN AUDIO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the various directions received by the microphone will interfere with each other, which is prone to echo and howling

Method used

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Embodiment Construction

[0010] like figure 1 As shown, it is a schematic cross-sectional view of the microphone 100 in a preferred embodiment. The microphone 100 includes a hollow shell 10, a circuit board 20, a conductive back plate 30, a cavity 40, an insulating gasket 50, a lower copper ring 60, an upper copper ring 70, silk cloth 80, viscose 90, a diaphragm 91 and Dust cloth 92.

[0011] A front sound hole 11 is opened on the front wall of the housing 10 .

[0012] The circuit board 20 is disposed in the casing 10 and is close to the rear wall of the casing 10 . The circuit board 20 is provided with radio frequency capacitors 21, FET22 and other components. A rear sound inlet hole 24 is also provided on the circuit board 20 to realize the unidirectionality of sound.

[0013] The conductive back plate 30 is disposed in the housing 10 and located on the inner surface of the front wall of the housing 10 . A plurality of back pole sound entrance holes 31 are evenly opened on the conductive back ...

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Abstract

The invention relates to a microphone which comprises a shell, a circuit board, a conducting back electrode plate, a cavity, a copper ring, a silk fabric, a vibrating diaphragm and an insulating pad, wherein the circuit board, the conducting back electrode plate and the cavity are arranged in the shell; the front wall of the shell is provided with a front sound input hole; the cavity is arranged between the circuit board and the conducting back electrode plate; the conducting back electrode plate is arranged on the internal surface of the front wall of the shell, and provided with a back electrode sound input hole which is opposite to the front sound input hole; the copper ring is arranged in the cavity and electrically connected with the circuit board; the middle part of the copper ring is provided with a circular plate which is opposite to the circuit board; and the circular plate is provided with a copper ring sound input hole. The microphone can be used for realizing single direction of sound, thereby avoiding echoes and whistles from generation.

Description

【Technical field】 [0001] The invention relates to a microphone, in particular to a condenser microphone. 【Background technique】 [0002] Generally, when a microphone receives sound, it will receive sound from all directions, that is to say, the usual microphone receives sound is omnidirectional, and the receiving sensitivity to sound from any direction is not much different. However, the various directions received by the microphone will interfere with each other, which is prone to echo and howling. Therefore, it is necessary to provide a microphone capable of realizing unidirectional sound. 【Content of invention】 [0003] Based on this, it is necessary to provide a microphone capable of realizing unidirectionality of sound and preventing generation of echo and howling sound. [0004] The microphone includes a housing, a circuit board arranged in the housing, a conductive back plate and a cavity, the front wall of the housing is provided with a front sound hole, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/08
Inventor 温志锋李新峰
Owner SHENZHEN HORN AUDIO
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