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Patent Searching and Data


Title:
LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2021/232476
Kind Code:
A1
Abstract:
The present utility model relates to the technical field of acoustoelectric conversion, and provides a loudspeaker, comprising: a vibration system; a magnetic circuit system that is used for driving the vibration system to vibrate and produce sound and that is provided with a magnetic gap; and a basin frame for installing the vibration system and the magnetic circuit system. The vibration system comprises a first diaphragm, a second diaphragm and a third diaphragm, a voice coil inserted into the magnetic gap, a first ring frame provided between the first diaphragm and the third diaphragm, and a second ring frame provided between the second diaphragm and the third diaphragm, the first ring frame being erected on the second ring frame. The second ring frame comprises a connecting plate. The first ring frame comprises a limiting plate. After the first ring frame is erected on the second ring frame, the limiting plate and the connecting plate are fixed. By using the present utility model, the vibration stability of the first diaphragm, second diaphragm, third diaphragm and voice coil may be improved, and the sound performance of the loudspeaker may be improved.

Inventors:
XIAO BO (CN)
LINGHU RONGLIN (CN)
Application Number:
PCT/CN2020/093210
Publication Date:
November 25, 2021
Filing Date:
May 29, 2020
Export Citation:
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Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R7/12; H04R7/18; H04R9/02; H04R9/04
Foreign References:
CN111131976A2020-05-08
CN110166910A2019-08-23
US20070125591A12007-06-07
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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