Title:
SOUND GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/000158
Kind Code:
A1
Abstract:
Provided in the present application is a sound generating device. The sound generating device comprises a frame, and a vibration system and magnetic circuit system that are fixed to the frame. The vibration system comprises a first vibrating diaphragm fastened to the frame, a voice coil which drives the first vibrating diaphragm to vibrate to generate sound, and an elastic support, wherein one end of the elastic support is fixed to the voice coil, and the other end of the elastic support is fixed to the frame. The magnetic circuit system comprises a magnetic yoke that is fixed to the frame, and the frame comprises two first side arms that fix the elastic support, and a second side arm connected between the two first side arms. The sound generating device further comprises a support part sandwiched between the first side arms and the magnetic yoke, and there are a plurality of support parts that are arranged at intervals. Compared to related technology, the sound generating device provided in the present application may prevent magnetic steel from being separated from the magnetic yoke during a drop test.
Inventors:
SHEN KAIHUA (CN)
Application Number:
PCT/CN2019/094058
Publication Date:
January 07, 2021
Filing Date:
June 30, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (CN)
AAC TECHNOLOGIES PTE LTD (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN109379680A | 2019-02-22 | |||
| CN208924470U | 2019-05-31 | |||
| CN109379679A | 2019-02-22 | |||
| CN108322869A | 2018-07-24 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYUANLIHE PATENT AND TRADEMARK FIRM (GENERAL PARTNERSHIP) (CN)
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