A loudspeaker diaphragm and a loudspeaker

A loudspeaker and body membrane technology, applied in the direction of flat diaphragm, polymer material diaphragm, non-planar diaphragm/paper cone, etc., can solve the problems of low sensitivity, small vibration space margin, heavy vibration system mass, etc. Excellent stiffness, wide elastic area and excellent resilience

Active Publication Date: 2018-12-14
GOERTEK INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, on the one hand, the margin of the vibration space becomes smaller, on the

Method used

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  • A loudspeaker diaphragm and a loudspeaker
  • A loudspeaker diaphragm and a loudspeaker
  • A loudspeaker diaphragm and a loudspeaker

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Embodiment Construction

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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 composited surface layers and at least one intermediate layer located between the two surfacelayers, at least one of the surface layer is a thermoplastic polyester elastomer film layer and at least one of the intermediate layers is an adhesive layer, wherein the plastic polyester elastomer is a copolymer composed of a polyester hard segment A and a polyether or aliphatic polyester soft segment B, and the mass percentage of the polyester hard segment A is 10-95%. The loudspeaker diaphragmhas excellent stiffness, good damping performance, resilience and so on.

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 a composite structure of high modulus plastic substrate layers (PEEK, PAR, PEI, PI, etc.), soft thermoplastic polyurethane elastomer (TPU) and damping film (acrylic glue, silica gel, etc.). 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 thi...

Claims

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Application Information

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IPC IPC(8): H04R7/20H04R31/00
CPCH04R7/20H04R31/003B32B7/12B32B2270/00B32B2307/536B32B3/08B32B25/20B32B7/022B32B2250/02B32B3/263B32B2307/54B32B2307/558B32B2457/00B32B25/08B32B3/28B32B2307/30B32B2307/732B32B2307/51B32B2274/00B32B27/36B32B2307/56B32B27/285B32B2307/546B32B2250/244B32B27/08H04R7/10H04R2307/025H04R31/006H04R7/14H04R9/06H04R9/02H04R7/02H04R9/025
Inventor 王婷赵国栋朱杰李春刘春发
Owner GOERTEK INC
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