Loudspeaker diaphragm and loudspeaker

A loudspeaker and body film technology, which is applied in the field of electroacoustic conversion, can solve the problems of thick diaphragm, heavy vibration system quality, low modulus or hardness, etc., and achieve good toughness and resilience performance, good sound effect, and high structural strength Effect

Active Publication Date: 2018-10-16
GOERTEK INC
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modulus or hardness of silicone rubber is relatively low, and when meeting the same F 0 Under the premise of requirements, the thickness of the diaphragm i

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Loudspeaker diaphragm and loudspeaker
  • Loudspeaker diaphragm and loudspeaker
  • Loudspeaker diaphragm and loudspeaker

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Glass transition temperatureaaaaaaaaaa
Young's modulusaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a loudspeaker diaphragm and a loudspeaker. The loudspeaker diaphragm comprises a thermoplastic polyester elastomer film layer, wherein a thermoplastic polyester elastomer is acopolymer composed of a polyester hard segment A and polyether or an aliphatic polyester soft segment B, the glass transition temperature of the thermoplastic polyester elastomer film layer is less than or equal to 20DEG C, and the thermoplastic temperature of the thermoplastic polyester elastomer film layer is 50DEG C to 200DEG C.

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. However, 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. However, the modulus or hardness of silicone rubber is relatively low, and when meeting the same F 0 Under the premise of requirements, the thickness of the diaphragm is thicker, on the one hand, the margin of the vibration space becomes smaller...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04R7/10B32B7/12B32B27/08B32B27/36B32B33/00H04R9/02H04R9/06
CPCH04R7/10H04R9/02H04R9/06B32B7/12B32B27/08B32B27/36B32B33/00B32B2307/558B32B2307/51B32B2307/10H04R2207/021H04R2400/11H04R31/003H04R2307/025B32B2307/748B32B2307/102B32B25/20B32B2250/02B32B2307/54B32B2457/00B32B25/08B32B2307/30B32B2307/732B32B2274/00B32B27/285B32B2250/03B32B2250/244H04R2400/00B32B2270/00H04R7/125H04R7/18H04R9/025
Inventor 王婷赵国栋朱杰李春刘春发
Owner GOERTEK INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap