Vibrating diaphragm and manufacturing method thereof

A production method and silicone membrane technology, applied in the direction of planar diaphragm, diaphragm extension, diaphragm structure, etc., can solve the problems of poor high and low frequency performance, poor rigidity, etc., and achieve good low frequency characteristics, low resonance frequency, and better low frequency characteristics Effect

Active Publication Date: 2018-11-13
CHANGZHOU AMT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a diaphragm and its manufacturing method in view of the defects o

Method used

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  • Vibrating diaphragm and manufacturing method thereof
  • Vibrating diaphragm and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] A. Graphene is mixed in the diluent, take 5g of graphene, 9995g of diluent, mix 5g of graphene in 9995g of diluent, stir evenly, make graphene evenly disperse in the diluent.

[0063] B. After the graphene is evenly dispersed in the diluent, the graphene suspension formed by it is evenly coated on the surface of the substrate layer 100 (i.e. the surface of the silica gel film) by means of slit coating or texture coating, The cloth speed is 20m / min, and the silica gel film coated with the graphene suspension is cured. The curing temperature can be set at 100°C and the curing time can be set at 2min.

Embodiment 2

[0065] A. Graphene is mixed in the diluent, take 7g of graphene, 9993g of diluent, mix 7g of graphene in 9993g of diluent, stir evenly, make graphene evenly disperse in the diluent.

[0066] B. After the graphene is evenly dispersed in the diluent, the graphene suspension formed by it is evenly coated on the surface of the substrate layer 100 (i.e. the surface of the silica gel film) by means of slit coating or texture coating, The cloth speed is 10m / min, and the silica gel film coated with the graphene suspension is cured. The curing temperature can be set at 95°C and the curing time can be set at 2min.

Embodiment 3

[0068] A. Graphene is mixed in the diluent, take 10g of graphene, 9990g of diluent, mix 10g of graphene in 9990g of diluent, stir evenly, make graphene evenly disperse in the diluent.

[0069] B. After the graphene is evenly dispersed in the diluent, the graphene suspension formed by it is evenly coated on the surface of the substrate layer 100 (i.e. the surface of the silica gel film) by means of slit coating or texture coating, The cloth speed is 15m / min, and the silica gel film that has been coated with graphene-graphite powder suspension on the surface is cured. The curing temperature can be set to 105°C, and the curing time can be set to 2min.

[0070] The middle layer 200 is made by mixing the mixture of graphene and graphite powder through diluent:

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Abstract

The invention relates to a vibrating diaphragm and a manufacturing method thereof. The manufacturing method comprises the following steps: S1: providing a silica gel film; S2: treating the silica gelfilm to thin the silica gel film to form a silica gel thin film; S3: providing graphene, graphite powder, a thinner and glue; S4: adding graphene or a mixture graphene and graphite powder into the thinner, and stirring evenly to form graphene suspension or graphene-graphite powder suspension; S5: evenly coating the graphene suspension or the graphene-graphite powder suspension on the surface of the silica gel thin film, and performing drying to form an intermediate layer, wherein the intermediate layer is a graphene layer or a graphene-graphite powder layer; S6: evenly coating the glue on thesurface of the intermediate layer, performing a drying treatment to cure the glue on the surface of the intermediate layer to form a glue layer, and finally forming a thin film; and S7, forming and dividing the thin film into a finished product vibrating diaphragm in a hot pressing manner. The vibrating diaphragm adopts the silica gel thin film as a base material to better suppress the resonance problem and reduce the distortion of the vibrating diaphragm, the resonance frequency f0 is lower, and the low frequency characteristics are better.

Description

technical field [0001] The present invention relates to the technical field of acoustic diaphragms, and more specifically, to a diaphragm and a manufacturing method thereof. Background technique [0002] With the rapid development of science and technology, people have higher and higher requirements for the quality of electronic products, such as earphones, audio products and other products, such as miniaturization, thinning, high sound quality requirements, etc., and these effects Depending on the core component of the acoustic device, the core component of the acoustic device is its diaphragm. [0003] In the existing related technologies, in order to obtain a high-quality diaphragm, it is usually achieved by changing the material of the diaphragm. Common diaphragm materials include paper cone, plastic, metal, etc. Generally, the sound quality of paper cone diaphragm is smooth and natural, crisp and clear, but it is easily affected by the environment and its performance i...

Claims

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Application Information

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IPC IPC(8): H04R7/04H04R31/00
CPCH04R7/04H04R31/003H04R2207/021H04R2231/001
Inventor 何朝阳黄斌胡家亮
Owner CHANGZHOU AMT
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