Title:
SOUND GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/062121
Kind Code:
A1
Abstract:
Provided is a sound generating device, comprising a basket, a vibration system and a magnetic circuit system for driving the vibration system to generate sounds which are fixed to the basket respectively. The vibration system comprises a vibrating diaphragm and a voice coil for driving the vibrating diaphragm to generate sounds. The vibrating diaphragm comprises a ring-shaped vibrating portion, an outer corrugated rim bending and extending from an outer peripheral edge of the vibrating portion, and an inner corrugated rim bending and extending from an inner peripheral edge of the vibrating portion. The side of the outer corrugated rim away from the vibrating portion is fixed to the basket, and the side of the inner corrugated rim away from the vibrating portion is fixed to the magnetic circuit system. The outer corrugated rim or the inner corrugated rim comprises a first corrugated rim bending and extending from the vibrating portion and a second corrugated rim bending and extending from the side of the first corrugated rim away from the vibrating portion. The second corrugated rim is fixed to the basket or the magnetic circuit system. The first corrugated rim and the second corrugated rim are both formed by recessing along a vibration direction of the vibrating diaphragm and have the same recessing direction. Compared with the related art, the sound generating device of the present invention has better acoustic performance.
Inventors:
LINGHU RONGLIN (CN)
ZHANG TONG (CN)
XIAO BO (CN)
KONG CHENLIANG (CN)
ZHANG TONG (CN)
XIAO BO (CN)
KONG CHENLIANG (CN)
Application Number:
PCT/CN2020/128777
Publication Date:
March 31, 2022
Filing Date:
November 13, 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:
H04R7/02; H04R1/20; H04R9/02; H04R9/06
Foreign References:
| CN111641902A | 2020-09-08 | |||
| CN202455528U | 2012-09-26 | |||
| CN101990149A | 2011-03-23 | |||
| CN204131704U | 2015-01-28 | |||
| CN106535069A | 2017-03-22 | |||
| US20160119718A1 | 2016-04-28 | |||
| US20200053479A1 | 2020-02-13 |
Attorney, Agent or Firm:
SHENZHEN JUNXINCHENG INTELLECTUAL PROPERTY FIRM (GENERAL PARTNERSHIP) (CN)
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