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Speaker vibration film made of non-wood fibers and manufacture process thereof

A wood fiber and manufacturing process technology, applied in the field of loudspeaker diaphragms, can solve the problems of declining economic benefits, small differences in physical properties, single features, etc., and achieve the effects of good economic benefits, cost control, and good cost.

Active Publication Date: 2010-06-02
GUOGUANG ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1) Wood fibers derived from pine and fir trees have relatively single characteristics and a small range of physical performance differences. It is difficult for speaker diaphragms made of such fibers to have rich performance;
[0007] 2) The mass production of the above-mentioned loudspeaker diaphragms has accelerated the reduction of forest resources to a certain extent, causing adverse effects on the ecological environment;
[0008] 3) In the foreseeable period, the cost of the above-mentioned loudspeaker diaphragm raw materials will increase, resulting in a decline in economic benefits;

Method used

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  • Speaker vibration film made of non-wood fibers and manufacture process thereof
  • Speaker vibration film made of non-wood fibers and manufacture process thereof
  • Speaker vibration film made of non-wood fibers and manufacture process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] The loudspeaker diaphragm 1 raw material of the present embodiment is made up of Spanish grass fiber, cotton fiber, Manila hemp fiber, as follows:

[0056]

[0057] image 3 Horn curve diagram for loudspeaker diaphragm 1 manufactured for conventional wood fiber. Line ① is the frequency response curve of the speaker, and Line ② is the distortion curve of the speaker.

[0058] Figure 4 It is the speaker curve diagram of the speaker diaphragm 1 of the present embodiment. Line ① is the frequency response curve of the speaker, and Line ② is the distortion curve of the speaker.

[0059] Will Figure 4 and image 3 For comparison: in the low frequency band, before 1KHz, image 3 and Figure 4 The speaker curve is similar, at high frequency, after 1KHz, Figure 4 Curve ratio image 3 The overall sound pressure level is high. Distortion curve comparison: Figure 4 The distortion peaks at only about 6%, while the image 3 The highest distortion reaches 25%. There...

Embodiment 2

[0061] The loudspeaker diaphragm 1 raw material of the present embodiment is made up of Spanish grass fiber, cotton fiber, Manila hemp fiber, as follows:

[0062]

[0063] Figure 5 It is the speaker curve diagram of the speaker diaphragm 1 of the present embodiment. Line ① is the frequency response curve of the speaker, and Line ② is the distortion curve of the speaker. Will Figure 5 and image 3 In comparison, it can also be seen that the loudspeaker diaphragm 1 of this embodiment has a horn performance that can reach or even surpass that of a speaker diaphragm 1 made of conventional wood fiber.

Embodiment 3

[0065] The loudspeaker diaphragm 1 raw material of the present embodiment is made up of Spanish grass fiber, cotton fiber, Manila hemp fiber, as follows:

[0066]

[0067] Figure 6 It is the speaker curve diagram of the speaker diaphragm 1 of the present embodiment. Line ① is the frequency response curve of the speaker, and Line ② is the distortion curve of the speaker. Will Figure 6 and image 3 In comparison, it can also be seen that the loudspeaker diaphragm 1 of this embodiment has a horn performance that can reach or even surpass that of a speaker diaphragm 1 made of conventional wood fiber.

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Abstract

The invention relates to a speaker vibration film made of non-wood fibers. The vibration film is prepared from the following raw materials in percentage by weight: 15-40% of grass fiber, 20-45% of cotton fiber and 15-65% of bast fiber. The speaker vibration film made of the non-wood fibers has short production period, great yield, relatively low price and high economic benefits, can not cause obvious adverse effect on the ecological environment by extensive use and have rich performance presentations.

Description

technical field [0001] The invention relates to a loudspeaker diaphragm, especially a loudspeaker diaphragm made of non-wood fiber. Background technique [0002] The conventional plant fiber speaker diaphragm is made of wood fiber as the main raw material, and then according to the performance requirements of different types of speakers, a certain amount of other fibers and functional additives are added and mixed. [0003] The wood fiber used in the conventional plant fiber speaker diaphragm is characterized by relatively uniform and single fiber length; according to different pulping methods, wood fibers with different degrees of softness and hardness can be obtained, but the difference range is small. [0004] The above-mentioned speaker diaphragm with wood fiber as the main raw material has a market share of about 90%. The wood fiber required for the manufacture of the speaker diaphragm is mainly derived from wood fibers in pine and fir trees, and corresponding trees nee...

Claims

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Application Information

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IPC IPC(8): H04R7/00H04R31/00
Inventor 杨伟军邓杰梯林渊胡礼樟池内一彦
Owner GUOGUANG ELECTRIC
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