Title:
LOUDSPEAKER AND AUDIO DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/022774
Kind Code:
A1
Abstract:
Disclosed are a loudspeaker and an audio device. The loudspeaker comprises: a support; a magnetic circuit system mounted on the support, the magnetic circuit system being provided with a magnetic circuit gap and a cone vibration space provided on an inner side of the magnetic circuit gap; and a vibration system. The vibration system comprises a diaphragm, a damper and a voice coil, wherein the diaphragm comprises a cone part, and an elastic connection part connected to the outer periphery of the cone part; an outer edge of the elastic connection part is connected to the support; the bottom of the cone part is arranged in the cone vibration space; the damper connects the cone part and the magnetic circuit system; and one end of the voice coil is connected to the elastic connection part, and the other end of the voice coil extends into the magnetic circuit gap. In this way, on the premise of ensuring that the value of the maximum amplitude of the voice coil is large, the distance between the diaphragm and an upper end of the vibration system can be reduced, thereby reducing the thickness of the loudspeaker.
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| JP2000032591 | LOUDSPEAKER AND LOUDSPEAKER DEVICE |
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Inventors:
ZHU XIAOTIAN (CN)
DONG ZHIYONG (CN)
DONG ZHIYONG (CN)
Application Number:
PCT/CN2019/129007
Publication Date:
February 11, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN110366080A | 2019-10-22 | |||
| CN207518845U | 2018-06-19 | |||
| US20100104127A1 | 2010-04-29 | |||
| US20100104127A1 | 2010-04-29 | |||
| CN207518845U | 2018-06-19 | |||
| CN206865742U | 2018-01-09 |
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