Vibrating diaphragm of sound production device and preparation method thereof and sound production device

A sound-generating device and film layer technology, applied in the direction of flat diaphragm, polymer material diaphragm, chemical instruments and methods, etc., can solve the problem of poor damping performance of diaphragm, and achieve excellent anti-polarization ability, excellent consistency and high sound quality. Effect

Active Publication Date: 2020-11-13
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a vibrating membrane of a sounding device and its preparation method, and a sounding device, aiming to solve the technical problem of poor damping performance of the silicon rubber diaphragm in the prior art

Method used

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  • Vibrating diaphragm of sound production device and preparation method thereof and sound production device
  • Vibrating diaphragm of sound production device and preparation method thereof and sound production device
  • Vibrating diaphragm of sound production device and preparation method thereof and sound production device

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preparation example Construction

[0063] In a second aspect, a method for preparing a diaphragm of a sounding device is provided, including the following steps:

[0064] Blending and modifying silicone rubber and modifiers to make blended polymers;

[0065] The blended polymer is cross-linked to form a vibrating membrane.

[0066] In the present invention, a modifying agent is added to the silicone rubber and blended. During the blending process, the silicone rubber and the modifying agent are fully mixed for modification to prepare a blended polymer. In the present invention, the modified film layer is a film layer prepared from blended polymers through a cross-linking reaction.

[0067] The present invention does not specifically limit the specific method of blending, and those skilled in the art can choose according to actual needs. As an example, silicone rubber and modifiers can be added to a mixer, high mixer, kneader or internal mixer for blending .

[0068] In the present invention, the diaphragm ca...

Embodiment 1

[0074] A vibrating membrane of a sounding device, the vibrating membrane includes a modified film layer, and the modified film layer is made of a blended polymer formed by blending and modifying silicone rubber and a modifier, wherein the The modifier is liquid butadiene-acrylonitrile copolymer, and the silicone rubber is liquid silicone rubber.

[0075] The content of the silicone rubber is 60% of the total mass of the blended polymer, and the content of the modifier is 40% of the total mass of the blended polymer.

Embodiment 2

[0077] A vibrating membrane of a sounding device, the vibrating membrane includes a modified film layer, and the modified film layer is made of a blended polymer formed by blending and modifying silicone rubber and a modifier, wherein the The modifier is liquid butadiene-styrene copolymer, and the silicone rubber is liquid silicone rubber.

[0078] The content of the silicone rubber is 40% of the total mass of the blended polymer, and the content of the modifier is 60% of the total mass of the blended polymer.

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Abstract

The invention discloses a vibrating diaphragm of a sound production device and a preparation method thereof and the sound production device. The vibrating diaphragm comprises at least one modified diaphragm layer, the modified diaphragm layer is made of a blend polymer formed by blending and modifying silicone rubber and a modifier, and the modifier is at least one of a butadiene-acrylonitrile copolymer, a butadiene-styrene copolymer, polysulfide rubber, polyurethane rubber and polybutadiene. The vibrating diaphragm provided by the invention is made of a blend polymer formed by blending and modifying silicon rubber and a modifier; the modifier is at least one of a butadiene-acrylonitrile copolymer, a butadiene-styrene copolymer, polysulfide rubber, polyurethane rubber and polybutadiene; the intermolecular force and/or steric hindrance of the silicone rubber can be increased, so that the vibrating diaphragm has excellent damping performance, and the sound production device has excellentconsistency, excellent anti-polarization capability, reduced distortion performance and higher tone quality in the vibration process.

Description

technical field [0001] The invention relates to the technical field of acoustic devices, in particular, the invention relates to a diaphragm of a sound generating device, a preparation method thereof, and a sound generating device. Background technique [0002] In the sound generating device, the diaphragm is a very important part, and its manufacturing material and process directly affect the acoustic effect of the sound generating device. With the improvement of high power, waterproof and high sound quality requirements, the diaphragm made of silicone rubber has also been applied in the field of sound generating devices. [0003] However, in the process of realizing the embodiment of the present application, the inventors of the present application found that the existing silicone rubber diaphragm has at least the following technical problems: the modulus or hardness of the silicone rubber diaphragm is relatively low, and the premise of meeting the same F0 requirements In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/06H04R7/04H04R31/00B32B25/20B32B25/08B32B27/28
CPCH04R7/06H04R7/04H04R31/003B32B25/20B32B25/08B32B27/28H04R2307/025
Inventor 惠冰王述强凌风光李春
Owner GOERTEK INC
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