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Loudspeaker diaphragm and loudspeaker

A loudspeaker and body membrane technology, which is applied in the field of electroacoustic conversion, can solve the problems of small vibration space margin, heavy vibration system quality, and low elastic recovery rate, and achieve the advantages of increased margin, excellent stiffness, and excellent rebound performance Effect

Active Publication Date: 2018-09-18
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

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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 diaphragm comprises a thermoplastic polyester elastomer film layer, wherein the thermoplastic polyester elastomer is a copolymerformed by a polyester hard segment A and a polyether or aliphatic polyester soft segment B, the Young modulus of the thermoplastic polyester elastomer film layer is 1-1000MPa, and after 10% of strain,the elastic recovery rate is larger than or equal to 80%. The loudspeaker diaphragm has excellent rigidity, good damping performance, resilience and the like.

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): H04R9/06H04R9/02
CPCH04R9/02H04R9/06H04R2400/11H04R7/125H04R2307/025B32B2307/102B32B7/12B32B25/20B32B2250/02B32B2307/54B32B2457/00B32B25/08B32B2307/30B32B2307/732B32B2274/00B32B27/36B32B27/285B32B2250/244B32B27/08B32B2250/03H04R7/10B32B2270/00H04R7/18H04R9/025
Inventor 王婷赵国栋朱杰李春刘春发
Owner GOERTEK INC
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