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Composite material for producing an acoustic membrane

A composite material, acoustic technology, applied in the direction of polymer material diaphragm, application, electronic equipment, etc., can solve the problems of high shear force, thermoforming is not preferred, etc.

Active Publication Date: 2019-03-01
奥地利依索沃尔塔股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, multilayer films with silicone rubber layers are not preferred for subsequent thermoforming and are exposed to high shear forces when these films are formed into specific shapes

Method used

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  • Composite material for producing an acoustic membrane
  • Composite material for producing an acoustic membrane
  • Composite material for producing an acoustic membrane

Examples

Experimental program
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Effect test

Embodiment

[0081] Different configurations of composite materials according to the invention

[0082] figure 1 A to N show different configurations of the composite material according to the invention with at least one support layer 1 or 5 and a polysiloxane layer 2 . They can be composed, for example, as follows:

[0083] exist figure 1 In preferred configurations A to L, the support layer is the bottom outer layer of the configuration. Words such as "top" and "bottom" are not intended to denote a certain orientation of the film, but are merely used to describe the drawings diagrammatically. Here, the support layer is the release layer 1 and said release layer 1 can be removed from the composite material. exist figure 1 In configurations H to L, the top outer layer also acts as a support layer for release layer 1. Preferred materials for the release layer labeled 1 are, for example, PET films with a single-sided siliconized surface, PET films with a symmetrical siliconized surfa...

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Abstract

A composite material for producing an acoustic membrane, wherein the composite material comprises a silicone layer comprising an at least partially uncured silicone rubber and a support layer, whereinthe support layer is adjacent to the silicone layer, as well as a method of preparing such a composite material and a process for producing an acoustic membrane from such a composite material.

Description

technical field [0001] The invention relates to a composite material for producing an acoustic membrane, a method for producing an acoustic membrane from the composite material and a method for producing such a composite material. Background technique [0002] Electromagnetic transducers are used in various types of loudspeakers and microphones, in particular also in tiny loudspeakers such as are used in mobile phones, laptops, tablets, game consoles, headsets, hands-free speakerphones, modern televisions and in the automotive sector. [0003] General market trends show that the structural shape of such loudspeakers does not allow a uniform design and requires great flexibility from the manufacturer. Additionally, the smallest structural shape with maximum performance is often required. Nevertheless, the demands on acoustic quality are the highest. All these requirements place enormous technical demands on the membranes used as the core components of loudspeakers or microp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/00H04R7/10H04R31/00B32B27/28B32B27/26B32B37/15B32B37/12B32B37/26B32B38/00B32B38/16
CPCB29D99/005B29K2083/00B29L2031/38B32B27/26B32B27/283B32B37/15B32B37/153B32B38/10B32B2037/1253B32B2037/268B32B2038/0076B32B2038/168B32B2250/02B32B2270/00B32B2305/74B32B2307/10B32B2307/738B32B2383/00B32B2457/00B29C51/00B29C48/0021B29C48/154H04R7/10H04R31/003H04R2307/025H04R2307/029B32B7/06B32B25/06B32B25/08B32B25/14B32B37/14B32B2307/732B29C48/07
Inventor 克里斯蒂安·策希纳彼得·皮特尔约瑟·安东尼奥·加西亚·加西亚克里斯蒂安·贝特尔
Owner 奥地利依索沃尔塔股份公司
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