Title:
SOUND PRODUCING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/000685
Kind Code:
A1
Abstract:
The present application provides a sound producing device. The sound producing device comprises a vibration system for vibration and producing sound and a magnetic circuit system for driving the vibration system to vibrate and produce sound. The vibration system comprises a diaphragm. The diaphragm comprises a vibration portion, a bent ring portion extending from the periphery of the vibration portion, and a fixing portion extending from one side of the bent ring portion away from the vibration portion. The vibration system further comprises a first dome and a second dome which are respectively attached to two opposite sides of the vibration portion; an outer contour of an orthographic projection of the first dome along a vibration direction of the diaphragm towards the second dome completely falls on the second dome. Compared with the related art, the sound producing device in the present application has better reliability.
Inventors:
LU DONG (CN)
WANG CHANGLIANG (CN)
WANG CHANGLIANG (CN)
Application Number:
PCT/CN2020/106408
Publication Date:
January 06, 2022
Filing Date:
July 31, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/02
Foreign References:
| CN204539462U | 2015-08-05 | |||
| CN210629839U | 2020-05-26 | |||
| CN110996224A | 2020-04-10 | |||
| CN109819382A | 2019-05-28 | |||
| CN109889964A | 2019-06-14 | |||
| US20200196062A1 | 2020-06-18 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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