Diaphragm and sounding device of a sounding device

Abstract

The invention discloses a vibrating membrane of a sounding device and a sounding device. The vibrating membrane includes at least one layer of elastic body layer, wherein the elastic body layer is made of mixed rubber; the mixed rubber is composed of raw rubber It is obtained by kneading the raw materials of filler and reinforcing agent, wherein the raw rubber includes polysulfide rubber, and the particle size of the filler and reinforcing agent is 10nm-10μm. The vibrating membrane obtained by the invention has good comprehensive performance, can work normally under extreme conditions of high and low temperature, can maintain good rigidity, resilience and damping performance, has low distortion, and restores the essence of sound.

Description

technical field [0001] The invention relates to the technical field of acoustic devices, and in particular, the invention relates to a diaphragm of a sound generating device and the sound generating device. Background technique [0002] With the rapid development of the 5G era, electroacoustic devices are gradually developing in the direction of thinner, smarter, higher power, and higher frequency. Consumers require products with higher power, better sound quality, and better performance. Stable and wider frequency response, which requires electro-acoustic devices to develop in the direction of thinning, miniaturization, and high power. The diaphragm is a very important part of the speaker, and its performance directly affects the acoustic performance of the speaker product. [0003] The materials used for the diaphragm of the existing sound generating device mainly include high-modulus plastics (such as PEEK, PAR, PEI, PI, etc.), thermoplastic resins (such as TPU) and sili...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of realizing the embodiment of the present application, the inventors of the present application found that the above-mentioned technology has at least the following technical problems: the use of high-modulus plastics cannot meet the high-power requirements of the 5G era because of its lightness and thinness. It is difficult to withstand large mechanical vibrations under high temperature conditions, resulting in membrane rupture; thermoplastic resins have poor heat and cold resistance, plastic deformation occurs at high temperatures, and become brittle at low temperatures; silicone rubber is used, although its thermal stability and resilience are poor. It is better, but because of its symmetrical chemical structure, high tacticity, small steric hindrance of symmetrically substituted methyl groups, and relatively low modulus or hardness of silicone rubber, it will cause damping of the material under the premise of meeting the same F0 requirements. Low performance, resulting in larger distortion of silicone rubber diaphragm products

It can be seen that the overall performance of the above-mentioned diaphragms is relatively poor, and cannot meet the overall performance requirements of the sounding device

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