Title:
LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2021/232475
Kind Code:
A1
Abstract:
The present utility model provides a loudspeaker. The loudspeaker comprises a basket, a magnetic circuit system, and a vibration system. The vibration system comprises a voice coil, a framework, a first diaphragm, a second diaphragm, and a third diaphragm. The framework comprises a second annular framework and a first annular framework. The second annular framework comprises a second annular framework body fixedly connected to the second diaphragm, a connection plate which extends from the second annular framework body toward the voice coil and is fixed to the voice coil, and a second flange formed by extending from one side of the connection plate toward a direction close to the first diaphragm. The first annular framework comprises a first annular framework body, a limiting plate provided between the first annular framework body and the connection plate, and a first flange formed by extending from one side of the limiting plate toward the first diaphragm. The first flange abuts against the second flange. The connection plate, the limiting plate, the second flange, and the first flange enclose to form an adhesive groove. The adhesive groove is filled with an adhesive. The present solution can improve the overall vibration stability of a vibration system of a loudspeaker, thus improving the sound production performance of a loudspeaker.
Inventors:
XIAO BO (CN)
LINGHU RONGLIN (CN)
LINGHU RONGLIN (CN)
Application Number:
PCT/CN2020/093207
Publication Date:
November 25, 2021
Filing Date:
May 29, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R7/12; H04R7/18; H04R9/02; H04R9/04
Foreign References:
| CN111131976A | 2020-05-08 | |||
| CN110149580A | 2019-08-20 | |||
| US20070125591A1 | 2007-06-07 |
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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