Silica gel diaphragm and loudspeaker

Abstract

The invention provides silica gel diaphragm and a loudspeaker. The silica gel diaphragm has a rectangular folding ring part and a middle adhering part connected with the inner periphery of the foldingring part. The folding ring part is composed of two first folding ring sides which are set oppositely and two second folding ring sides which are set oppositely. A folding ring corner is connected between the adjacent first folding ring side and second folding ring side. Each folding ring corner is equipped with at least one thickness adjustment section. First thickness difference exists among the thickness of the first folding ring sides, the thickness of the second folding ring sides and the thickness of the thickness adjustment sections. According to the silica gel diaphragm and the loudspeaker provided by the invention, the stress at four corners of the silica gel diaphragm is reduced by changing the thickness of the thickness adjustment sections of the folding ring corners of the silica gel diaphragm, so the resonant frequency is reduced and the roll vibration is suppressed.

Description

technical field [0001] The invention relates to the technical field of electronic products, in particular to a silicone diaphragm and a loudspeaker. Background technique [0002] At present, electronic products on the market, especially wearable electronic products, generally have waterproof requirements. Speakers and receivers as electroacoustic transducers also have higher waterproof requirements, because the integrated injection molding of silicone diaphragm and plastic parts can achieve higher waterproof requirements. Good waterproof depth makes the silicone diaphragm widely used in speakers. [0003] The rectangular silicone diaphragm of existing loudspeakers is limited to a small range of materials when adjusting the resonance frequency, and often needs to adjust the thickness of the silica gel diaphragm. However, the adjustment range of the thickness of the silica gel diaphragm is limited by distortion during molding, so it is not easy to adjust the resonance frequenc...

AI Technical Summary

Problems solved by technology

[0003] The rectangular silicone diaphragm of existing loudspeakers is limited to a small range of materials when adjusting the resonance frequency, and often needs to adjust the thickness of the silicone diaphragm. However, the adjustment range of the thickness of the silicone diaphragm is limited by distortion during molding, so it is not easy to adjust the resonance frequency. ; In addition, for the rectangular silicone diaphragm, the stress is usually concentrated on the four corners, resulting in five points in the plane of the silicone diaphragm (the five points usually refer to the four corners and the at the center position) due to the difference in amplitude

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