Vibrating diaphragm and sound equipment provided with same

Abstract

The invention discloses a vibrating diaphragm. The vibrating diaphragm comprises a vibrating diaphragm body, wherein at least two sound holes are formed in the vibrating diaphragm body, and a diaphragm is arranged on each sound hole. Compared with the method in which only one sound hole is formed in the vibrating diaphragm, the vibrating diaphragm with the two sound holes achieves less deformation of the diagrams caused by attraction to a back polar plate during use without obvious decreases to the effective areas of the sound holes. The vibrating diaphragm provided by the invention has the advantages that through the change to the number of the sound holes in the vibrating diaphragm body, the vibrating diaphragm deformation quantity is reduced without obvious decreases to the effective areas of the sound holes and the diaphragms, so that the potential is effectively improved, higher sensitivity is achieved, and a frequency response curve can be effectively broadened. The invention further discloses sound equipment provided with the vibrating diaphragm, which is highly sensitive.

Description

technical field [0001] The present invention relates to the technical field of electric equipment, and more specifically, relates to a vibrating membrane. In addition, the present invention also relates to an audio device comprising the above diaphragm. Background technique [0002] With the development of electronic technology, electret microphones have higher and higher requirements for signal-to-noise ratio and broadband. [0003] In order to achieve a higher signal-to-noise ratio, the sensitivity is usually increased. In the conventional method, the inner diameter of the diaphragm is increased to increase the effective area of ​​the diaphragm, so as to improve the signal-to-noise ratio. [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 performan...

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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