A diaphragm and audio equipment with the diaphragm

Abstract

The invention discloses a vibrating membrane, which comprises a vibrating membrane body, at least two sound holes are arranged on the vibrating membrane body, and a diaphragm is arranged on the sound holes. Compared with the method of setting one sound hole on the diaphragm, setting two sound holes can ensure that the effective area of ​​the sound hole does not decrease significantly, and reduce the deformation caused by the diaphragm being attracted by the back plate when it is used. The vibrating membrane provided by the present invention reduces the deformation of the vibrating membrane by changing the number of sound holes on the vibrating membrane body without significantly reducing the effective area of ​​the sound holes and the diaphragm, which can effectively increase the potential, improve the sensitivity, and It can effectively broaden the frequency response curve. The invention also discloses an acoustic equipment comprising the above-mentioned vibrating membrane, and the audio equipment has high sensitivity.

Description

Technical field [0001] The present invention relates to the technical field of electrical equipment, and more particularly to a diaphragm. Further, the present invention also relates to an audio device including the above-described diaphragm. Background technique [0002] With the development of electronics technology, the electret microphone is getting higher and higher for signal-to-noise ratio and broadband requirements. [0003] In order to achieve a higher signal-to-noise ratio, it is usually improved, and the inner use of commonly used in the prior art will increase the effective area of ​​the diaphragm to improve the signal-to-noise ratio. [0004] However, there will be an eradic charge on the wroop or diaphragm in the electret microphone, and the diaphragm is attracted by the wroop or plate, and the intermediate portion of the diaphragm produces a large deformation, and the microphone performance will have a large adverse effect. . The above design is affected by the adh...

AI Technical Summary

Problems solved by technology

[0004] However, in electret microphones, there will be electret charges on the back plate or diaphragm, and the diaphragm will be attracted by the back plate or plate, and the middle part of the diaphragm will be greatly deformed, which will have a great adverse effect on the performance of the microphone.

The above design is affected by the attraction of the back plate or the plate to the diaphragm, and the improvement will be greatly limited

At the same time, this design of increasing the inner diameter of the vibrating ring will significantly reduce the cut-off frequency of the frequency response curve, reduce the bandwidth of the microphone, and affect the use of the microphone

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