Title:
SOUND PRODUCTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/045235
Kind Code:
A1
Abstract:
A sound production device, comprising: a first basket; a first vibration system, which comprises a first diaphragm and a first voice coil; a magnetic circuit system, which is provided with a magnetic gap and a second magnetic gap spaced apart from each other on the side of the magnetic circuit system close to the first vibration system, the first voice coil being inserted and suspended in the first magnetic gap; a second basket; a second vibration system, which comprises a second diaphragm and a second voice coil, the second voice coil being inserted and suspended in the second magnetic gap; and a conductive insert, which is fixed to the magnetic circuit system and penetrates the magnetic circuit system from the side thereof away from the first vibration system to the other side, wherein a voice coil lead of the second voice coil is led out from an inner peripheral side of the second voice coil and extends to be electrically connected to the conductive insert. In the sound production device, the total bending length of two ends of a voice coil wire can be controlled by means of adjusting the winding process of the second voice coil, so that the purpose of adjusting the amplitude of the second vibration system is achieved, and the amplitude adjustment of the second vibration system is more convenient.
Inventors:
REN ZHANG (CN)
ZHONG ZHIWEI (CN)
ZHONG ZHIWEI (CN)
Application Number:
PCT/CN2022/120143
Publication Date:
March 07, 2024
Filing Date:
September 21, 2022
Export Citation:
Assignee:
AAC MICROTECH CHANGZHOU CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Domestic Patent References:
| WO2022110461A1 | 2022-06-02 |
Foreign References:
| CN113596686A | 2021-11-02 | |||
| CN201222802Y | 2009-04-15 | |||
| CN105554656A | 2016-05-04 | |||
| US20150296302A1 | 2015-10-15 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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