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Diaphragm for sounding device, sounding device and assembling method thereof

A sound-generating device and membrane layer technology, applied in the field of sound-generating devices and diaphragms, can solve the problems of easy film folding, low material damping, and inability to waterproof the product, achieving good waterproof effect, reduced tacticity, good damping effect

Pending Publication Date: 2019-01-15
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above-mentioned materials all have their own shortcomings. For example, engineering plastics such as PEEK and PAR have good temperature resistance, but the material has poor resilience, and the product is prone to film folding, which cannot play a waterproof role.
Elastomer materials such as TPU and TPEE have low melting point and poor temperature resistance
Although the thermal stability and resilience of silicone rubber materials are good, but because of its symmetrical chemical structure, high tacticity, and the small steric hindrance of the symmetrically substituted methyl groups, the damping property of the material is low, resulting in the silicone rubber diaphragm The product distortion is large

Method used

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  • Diaphragm for sounding device, sounding device and assembling method thereof
  • Diaphragm for sounding device, sounding device and assembling method thereof
  • Diaphragm for sounding device, sounding device and assembling method thereof

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Embodiment Construction

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0035] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0036] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a diaphragm for a sounding device, a sounding device and an assembling method thereof. The diaphragm includes a diaphragm layer prepared by subjecting at least one of an ethylene-acrylate copolymer and an ethylene-acrylic ester-carboxylic acid copolymer to crosslinking reaction. The molecular structure of the diaphragm includes a vinyl-acrylic group. The group reduces the chemical structure symmetry of a material, reduces tacticity, and increase steric hindrance, so that the diaphragm has a high loss factor and the sounding device has a good damping effect.

Description

technical field [0001] The present invention relates to the technical field of electroacoustic conversion, and more particularly, to a diaphragm for a sound generating device, a sound generating device and an assembly method thereof. Background technique [0002] The diaphragm used for sounding devices is mostly made of multi-layer composite materials, such as engineering plastics such as PEEK, PAR, PEI, and PI, elastomer materials such as TPU and TPEE, and films such as acrylic film and silicone film. Composite as two-layer, three-layer or multi-layer strip material to meet the needs of sounding devices with different performances. In addition, silicone rubber is also used to make diaphragms due to its good thermal stability, good hydrophobicity and excellent resilience. [0003] However, the above-mentioned materials all have their own shortcomings. For example, engineering plastics such as PEEK and PAR have good temperature resistance, but the material has poor resilienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/04H04R31/00
CPCH04R7/04H04R31/003H04R2231/001H04R2207/021C08K5/0025C08L23/0869H04R2307/025H04R7/02H04R9/06C08L2203/20C08L2312/00
Inventor 凌风光王述强李春刘春发
Owner GOERTEK INC
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