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Loudspeaker diaphragm and loudspeaker

A loudspeaker and body membrane technology, applied in the field of electro-acoustic conversion, can solve problems such as low elastic recovery rate, heavy vibration system quality, plastic deformation, etc., and achieve the effect of excellent rebound performance, good damping performance, and wide elastic region

Active Publication Date: 2018-12-07
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, on the one hand, the margin of the vibration space becomes smaller, on the other hand, the quality of the vibration system is heavy, resulting in low sensitivity
[0005] In addition, the silicone rubber diaphragm is prone to plastic deformation when vibrating, and the elastic recovery rate is low

Method used

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  • Loudspeaker diaphragm and loudspeaker
  • Loudspeaker diaphragm and loudspeaker
  • Loudspeaker diaphragm and loudspeaker

Examples

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Embodiment Construction

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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 loudspeaker diaphragm and a loudspeaker. The loudspeaker diaphragm comprises two surface layers compounded together and at least one intermediate layer located between the two surface layers. At least one surface layer is a thermoplastic polyester elastomer film layer; and the at least one intermediate layer is an adhesive layer. The Young's modulus of the thermoplastic polyester elastomer film layer is 1-1000MPa; the loss factor thereof is larger than or equal to 0.015; and the elastic recovery rate thereof is greater than or equal to 80% after 10% of strain.

Description

technical field [0001] The present invention relates to the technical field of electroacoustic conversion, and more specifically, to a loudspeaker diaphragm and a loudspeaker. Background technique [0002] Existing loudspeaker diaphragms mostly use high modulus plastic film layers (PEEK, PAR, PEI, PI, etc.), soft thermoplastic polyurethane elastomer (TPU) and damping film (acrylic glue, silica gel, etc.) composite structure. The comprehensive performance of the above-mentioned diaphragm is relatively poor, and it is easy to cause poor hearing. [0003] With the improvement of high power, waterproof and high sound quality requirements, the diaphragm made of silicone rubber has also been applied in the field of loudspeakers. [0004] However, the elastic modulus or hardness of silicone rubber is relatively low. In meeting the same F 0 (Resonant frequency) requirements, in order to ensure the strength of the diaphragm, the thickness of the diaphragm needs to be thicker. In ...

Claims

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Application Information

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IPC IPC(8): H04R7/10
CPCH04R7/10H04R2307/025H04R31/003B32B2307/748B32B7/12B32B2307/102B32B25/20B32B2250/02B32B2307/54B32B2457/00B32B25/08B32B2307/732B32B2307/51B32B2274/00B32B27/36B32B27/285B32B2250/03B32B2250/244B32B27/08H04R9/06H04R9/02C09J133/08C09J175/04C09J183/04
Inventor 王婷赵国栋朱杰李春刘春发
Owner GOERTEK INC
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