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Planar diaphragm composite material for loudspeaker and preparation method thereof

A technology of planar diaphragm and composite materials, which is applied in the field of loudspeakers, can solve the problems that the planar diaphragm composite materials of loudspeakers are difficult to meet various requirements, and achieve the effects of enhanced rigidity, high sensitivity and good protection

Active Publication Date: 2021-11-02
安徽派声电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flat diaphragm composite material for loudspeaker and its preparation method, to solve the problem that the existing loudspeaker flat diaphragm composite material is difficult to meet various requirements

Method used

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  • Planar diaphragm composite material for loudspeaker and preparation method thereof

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Effect test

Embodiment 1

[0041] The preparation method for the planar diaphragm composite material used for the loudspeaker of the present embodiment comprises the following steps:

[0042] (1) Coating the adhesive on the surface of the resin-impregnated balance paper that needs to be glued;

[0043] (2) The surface layer of the resin-impregnated balance paper is coated with an adhesive and attached to the upper and lower surfaces of the substrate layer;

[0044] (3) bonding the resin-impregnated balance paper surface layer and the base material layer by flat hot pressing;

[0045] Wherein, the hot-pressing treatment conditions are as follows: 3 tons of pressure, hot-pressing temperature of 120° C., and holding pressure for 30 minutes.

Embodiment 2

[0047] The preparation method for the planar diaphragm composite material used for the loudspeaker of the present embodiment comprises the following steps:

[0048] (1) Coating the adhesive on the surface of the resin-impregnated balance paper that needs to be glued;

[0049] (2) The surface layer of the resin-impregnated balance paper is coated with an adhesive and attached to the upper and lower surfaces of the substrate layer;

[0050] (3) bonding the resin-impregnated balance paper surface layer and the base material layer by flat hot pressing;

[0051] Wherein, the hot-pressing treatment conditions are as follows: 5 tons of pressure, hot-pressing temperature of 150° C., and holding pressure for 25 minutes.

Embodiment 3

[0053] The preparation method for the planar diaphragm composite material used for the loudspeaker of the present embodiment comprises the following steps:

[0054] (1) Coating the adhesive on the surface of the resin-impregnated balance paper that needs to be glued;

[0055] (2) The surface layer of the resin-impregnated balance paper is coated with an adhesive and attached to the upper and lower surfaces of the substrate layer;

[0056] (3) bonding the resin-impregnated balance paper surface layer and the base material layer by flat hot pressing;

[0057] Wherein, the hot-pressing treatment conditions are as follows: 6 tons of pressure, hot-pressing temperature of 170° C., and holding pressure for 20 minutes.

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Abstract

The invention discloses a planar diaphragm composite material for a loudspeaker and a preparation method of the planar diaphragm composite material, and belongs to the technical field of loudspeakers. The planar diaphragm composite material is composed of a light high-strength base material layer and resin-impregnated balance paper surface layers adhered to the upper and lower surfaces of the base material layer. The planar diaphragm composite material for the loudspeaker has the advantages of low density, light weight, high strength, ultra-thinness and high temperature resistance, not only can the sensitivity of the loudspeaker be improved through the composite structure of the base material layer and the resin impregnated balance paper surface layer, but also the planar diaphragm composite material has excellent temperature resistance due to the fact that the adhesive layer is made of thermosetting resin adhesive. Under the condition that the loudspeaker works for a long time, material layering or deformation is not generated, and the service life of the loudspeaker is prolonged.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a flat diaphragm composite material used for loudspeakers and a preparation method thereof. Background technique [0002] The loudspeaker unit mainly includes the vibration and sound part (diaphragm, voice coil and skeleton, dust cover), the support and reset centering part (folding ring or hanging edge, centering support piece or elastic wave), the part providing magnetic field (magnet, magnetic conduction column, upper and lower magnetic plates). When the AC audio voltage signal passes through the voice coil of the speaker, it is driven by the ampere force under the action of the magnetic field, and the voice coil reciprocates at its equilibrium position, and the diaphragm moves together; the vibration of the diaphragm will push the surrounding air medium Vibration forms radiation acoustic resistance at the mechanical end; energy is transmitted through the air medium, thu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/10H04R31/00
CPCH04R7/10H04R31/003H04R2231/001H04R2307/021H04R2307/025
Inventor 胡雪玉
Owner 安徽派声电子有限公司
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