LOUDSPEAKER DIAPHRAGM

WIPO Patent Application WO/2015/180289

A1

The present invention provides a loudspeaker diaphragm, comprising a first surface layer, a middle layer and a second surface layer that are in a stacked structure. The loudspeaker diaphragm is characterized in that: at least one surface layer of the first surface layer and the second surface layer has a composite structure composed of a base layer and a reinforcing layer, and the other surface layer at least comprises a base layer; the base layer is a poly(ether-ether-ketone) layer, a polyarylester layer, a polyethylene terephthalate layer, a polyetherimide layer, or a composite structure composed of any two of the above layers; and the reinforcing layer is a thermoplastic polyurethane elastomer layer or a thermoplastic elastomer layer. The loudspeaker diaphragm can reduce diaphragm breakage after power test is performed on a loudspeaker product, improve substrate toughness and improve acoustical property of the loudspeaker.

JP2018536359	Composite elements and electronic devices equipped with them
JPS58222700	FLAT LOUDSPEAKER
WO/2017/162132	ELECTRODYNAMIC LOUDSPEAKER MEMBRANE WITH INTERNALLY MOLDED ELECTRICAL CONNECTION

LIU XUELU (CN)
YANG JIANBIN (CN)
WANG TING (CN)
JIANG CHAO (CN)

PCT/CN2014/086109

December 03, 2015

September 09, 2014

Click for automatic bibliography generation  

GOERTEK INC (CN)

H04R7/06

CN203446015U	2014-02-19
CN103475981A	2013-12-25
CN101536542A	2009-09-16
CN101252793A	2008-08-27
CN202652511U	2013-01-02
CN103738020A	2014-04-23

BEIJING GRANDER IP LAW FIRM (CN)
北京鸿元知识产权代理有限公司 (CN)

View/Download PDF      PDF Help

Previous Patent: EMBEDDED TOUCH PANEL AND DISPLAY DEVICE

Next Patent: SWITCH POWER SOURCE AND METHOD FOR CONTROLLING SWITCH POWER SOURCE