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Carbon fiber dome, preparation method thereof and loudspeaker

A carbon fiber ball, carbon fiber prepreg technology, applied in the direction of fiber diaphragm, chemical instruments and methods, sensors, etc., can solve the problems of low modulus of carbon fiber ball top, difficult to improve high-frequency performance of products, etc., to improve high-frequency performance, The effect of increasing the modulus

Active Publication Date: 2020-07-14
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a carbon fiber dome, its preparation method and loudspeaker, which can solve the problems in the prior art that the modulus of the carbon fiber dome is low and the high-frequency performance of the product is not easy to improve

Method used

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  • Carbon fiber dome, preparation method thereof and loudspeaker
  • Carbon fiber dome, preparation method thereof and loudspeaker
  • Carbon fiber dome, preparation method thereof and loudspeaker

Examples

Experimental program
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Effect test

Embodiment 1

[0029] figure 1 It is a schematic structural view of the carbon fiber dome of Example 1 of the present invention, as figure 1 As shown, the carbon fiber dome 100 includes a carbon fiber layer 110, and the carbon fiber layer 110 includes one or more layers of carbon fiber material prepreg, and the carbon fiber prepreg includes carbon fiber material, resin and reinforcing material dispersed in the resin.

[0030] In this embodiment, in order to improve the flexural modulus of the carbon fiber dome 100, the resin of the carbon fiber prepreg is reinforced, the reinforcing material is in contact with the resin, and the reinforcing material is uniformly dispersed in the resin to form an uncured resin, Then use the resin to pre-impregnate the carbon fiber material to form the carbon fiber material prepreg. carbon fiber impregnated material.

[0031] In this embodiment, the reinforcing material may include one or more of carbon nanotubes, graphene or silica ceramic particles.

[00...

Embodiment 2

[0046] figure 2 It is a schematic structural view of the carbon fiber dome of Example 2 of the present invention, as figure 2 As shown, the carbon fiber dome 200 includes a first carbon fiber layer 210, a foam material layer 220 and a second carbon fiber layer 230, the first carbon fiber layer 210 and the second carbon fiber layer 230 are respectively arranged on the foam material layer 220 The upper surface and the lower surface, the first carbon fiber layer 210 includes one or more layers of carbon fiber material prepreg, the second carbon fiber layer 230 includes one or more layers of carbon fiber material prepreg, and the carbon fiber prepreg includes carbon fiber material , resin and reinforcing material dispersed in the resin.

[0047] For the description of the first carbon fiber layer 210 and the second carbon fiber layer 230 in this embodiment, please refer to the description of the carbon fiber layer 110 in Embodiment 1, and details are not repeated here.

[0048...

Embodiment 3

[0051] image 3 It is a flow chart of the preparation method of the carbon fiber dome of Example 3 of the present invention, and the preparation method is used to prepare the carbon fiber dome of Example 1 of the present invention, such as image 3 Shown, this preparation method comprises:

[0052] S301, adding a reinforcing material to the resin to form a reinforced resin.

[0053] S302. Pre-impregnating the carbon fiber material with the reinforcing resin to obtain a pre-impregnated carbon fiber material.

[0054] S303, laminating multiple layers of the pre-impregnated carbon fiber material sequentially and then performing curing treatment.

[0055] The preparation method of the dome structure in the embodiment of the present invention can form a composite layer only by simply sticking it, and then strengthen it through high temperature and high pressure to obtain a dome structure with excellent mechanical properties and acoustic properties, while ensuring aesthetics. In t...

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Abstract

The invention relates to the technical field of electroacoustic devices, in particular to a carbon fiber dome, a preparation method thereof and a loudspeaker. The carbon fiber dome comprises one or more layers of carbon fiber prepregs; the carbon fiber prepregs comprise a carbon fiber material, resin and a reinforcing material dispersed in the resin. According to the carbon fiber dome, the preparation method thereof and the loudspeaker, the reinforcing material is added into the resin in the carbon fiber prepreg, so that the modulus of the resin is improved, the modulus of the carbon fiber prepreg and the modulus of the carbon fiber dome are further improved, and the high-frequency performance of a loudspeaker product is improved.

Description

【Technical field】 [0001] The invention relates to the technical field of electroacoustic devices, in particular to a carbon fiber dome, a preparation method thereof and a loudspeaker. 【Background technique】 [0002] The dome-shaped speaker refers to a speaker that uses a dome-shaped diaphragm to directly radiate sound waves. It belongs to an electric speaker. The diaphragm is a hemispherical diaphragm, and the voice coil is directly supported by the diaphragm ring without a centering piece. It is characterized by Good high-frequency response, wide directivity and low distortion. [0003] Carbon fiber domes in the prior art generally use hot-pressed carbon fiber materials. Compared with pure carbon fiber materials, the modulus of hot-pressed dome materials is greatly reduced, which is not conducive to the improvement of high-frequency performance of speaker products. [0004] Therefore, it is necessary to provide a new technical solution to solve the above technical problems...

Claims

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Application Information

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IPC IPC(8): H04R31/00H04R9/06B32B9/00B32B9/04B32B27/18B32B27/28B32B37/00B32B5/18
CPCH04R31/00H04R31/003H04R9/06B32B5/02B32B5/26B32B5/08B32B5/245B32B37/00H04R2307/029B32B2262/106B32B2266/0264B32B2266/0214B32B2266/025
Inventor 狄勋赵彬
Owner AAC TECH PTE LTD
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