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Carbon fiber woven ball top, vibrating diaphragm structure and manufacturing method

A carbon fiber weaving and carbon fiber cloth technology, applied in the fields of carbon fiber weaving dome, diaphragm structure and production, can solve the problems of broken aluminum foil, insufficient material strength, inability to withstand pressure, etc., to reduce the thickness of the dome and increase the material strength , good bonding effect

Inactive Publication Date: 2017-06-13
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this structure, the aluminum foil and the foaming material are compounded to make a dome, but this kind of dome, on the one hand, is thicker due to the composite structure, and on the other hand, the aluminum foil will be broken, and the aluminum foil and the foaming material will be separated. Insufficient strength of layers and materials
Aluminum foil, as the outer member, is prone to pollution, scratches, etc. The foam material is easily deformed under stress, cannot withstand pressure, and is easy to absorb water

Method used

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  • Carbon fiber woven ball top, vibrating diaphragm structure and manufacturing method
  • Carbon fiber woven ball top, vibrating diaphragm structure and manufacturing method
  • Carbon fiber woven ball top, vibrating diaphragm structure and manufacturing method

Examples

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Embodiment 1

[0020] A carbon fiber braided dome is made of carbon fiber cloth. In the present invention, the carbon fiber cloth may be one layer, or may be composed of multiple layers of carbon fiber cloth, and each layer of carbon fiber cloth may be combined by bonding or weaving.

[0021] Such as figure 1 As shown, in the present invention, the weaving proportions of the carbon fiber cloth in the vertical and horizontal directions are different, which can provide unidirectional strength and make it adaptable to spherical tops of different shapes. The weaving ratio of carbon fiber cloth includes an aspect ratio of 1:20 to 1:2. The so-called aspect ratio refers to the ratio of the width (diameter) d1 of a longitudinal carbon fiber filament 1 to the distance d2 between two adjacent longitudinal carbon fiber filaments 1 , that is, d1:d2 is 1:20~1:2. exist figure 1 Among them, the aspect ratio between the so-called longitudinal carbon fiber filaments 1 and the transverse carbon fiber filam...

Embodiment 2

[0027] Combine below image 3 The manufacturing method of the carbon fiber braided dome and diaphragm structure in the present invention is further introduced.

[0028] S100: Prepare carbon fiber filaments. The tensile modulus of the carbon fiber filament is above 300Gpa. Further, the carbon fiber filaments are carbon fiber filaments that have been pre-impregnated with resin. Prepreg resins include epoxy resin, PEEK (polyether ether ketone), PI (polyimide), PPS (polyphenylene sulfide), PBO (poly-paraphenylene benzobisoxazole), aramid 1414, etc.

[0029] S300: Weaving the carbon fiber filaments in step S100 into single-layer carbon fiber cloths with different aspect ratios. The aspect ratio of the carbon fiber cloth is 1:20~1:2, and the thickness range is 20~200um, preferably 80~150um.

[0030] S500: Cutting to form the carbon fiber dome, for example, laser cutting, trimming die cutting, die cutting machine die cutting, etc. can be used.

[0031] S700: The cut carbon fiber...

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Abstract

The invention discloses a carbon fiber woven ball top, a vibrating diaphragm structure and a manufacturing method. The manufacturing method comprises the following steps: S100, preparing carbon fibers; S300: weaving the carbon fibers into single-layer carbon fiber cloth with different aspect ratios, wherein the aspect ratio of the carbon fiber cloth is 1:20-1:2; and S500: cutting to form the carbon fiber ball top. The carbon fiber woven ball top is high in strength, and the thickness of the ball top is reduced.

Description

[0001] 【Technical field】 [0002] In general, the present invention relates to an electroacoustic device, in particular to a carbon fiber braided dome, a diaphragm structure and a manufacturing method. [0003] 【Background technique】 [0004] With the development of the electronics industry, the performance and reliability of the electro-acoustic system need to be continuously improved, and the requirements for the dome are getting higher and higher. The existing dome is made of aluminum foil and foam material, and the overall structure is a sandwich structure. . In this structure, the aluminum foil and the foaming material are compounded to make a dome, but this kind of dome, on the one hand, is thicker due to the composite structure, and on the other hand, the aluminum foil will be broken, and the aluminum foil and the foaming material will be separated. Phenomena such as insufficient layer and material strength. Aluminum foil, as the outer layer component, is prone to poll...

Claims

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Application Information

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IPC IPC(8): H04R31/00H04R7/10
CPCH04R31/00H04R7/10H04R2231/001
Inventor 狄勋马利鹏赵彬梁平严绪东
Owner AAC TECH PTE LTD
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