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Title:
INTEGRATED MAGNET AND VOICE COIL ASSEMBLY AND MOVING MAGNET-TYPE LOUDSPEAKER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2018/170944
Kind Code:
A1
Abstract:
Disclosed are an integrated magnet and voice coil assembly and a moving magnet-type loudspeaker provided with the assembly, wherein the magnet and voice coil assembly comprises a voice coil provided with a central hole and a bonded magnet integrally injection-moulded with the voice coil, wherein the voice coil is formed in a pre-wound mode; the bonded magnet is integrated with the voice coil by resin and magnetic liquid which are mixed together by means of an injection moulding process; and the bonded magnet is magnetized after being formed by injection moulding. In the present invention, the bonded magnet is injection moulded in the voice coil by means of injection moulding, so that the magnetic force of the bonded magnet can be conveniently achieved by adjusting the proportioning of the resin and the magnetic liquid, and the shape of the magnet. After the magnet and voice coil assembly of the present invention is used for the moving magnet-type loudspeaker, the magnetic force of the bonded magnet for balancing a vibrating diaphragm can be conveniently adjusted, so that the loudspeaker can better control the balance position of the vibrating diaphragm so as to make same provided with a good loudspeaker performance. At the same time, the assembly accuracy and material accuracy can be greatly improved, so that the process, such as assembling, is simplified.

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Inventors:
JI PENGCHENG (CN)
XU CHAO (CN)
Application Number:
PCT/CN2017/078756
Publication Date:
September 27, 2018
Filing Date:
March 30, 2017
Export Citation:
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Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/06; H04R9/02
Domestic Patent References:
WO2010004285A12010-01-14
Foreign References:
CN103686558A2014-03-26
CN202750223U2013-02-20
Attorney, Agent or Firm:
BEIJING GRANDER IP LAW FIRM (CN)
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