Title:
SOUND EMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/134681
Kind Code:
A1
Abstract:
Provided is a sound emission device, comprising: a basket having an accommodation space; and a magnetic circuit system and a vibration system accommodated in the accommodation space. The magnetic circuit system comprises a yoke. The vibration system comprises a diaphragm assembly. The diaphragm assembly comprises a diaphragm fixed to the basket and a dome positioned at the center. An arranged air flow disturbance device is provided at an outer surface of the sound emission device. Compared with the prior art, the sound emission device of the present invention is provided with an arranged air flow disturbance device at a region in contact with air, thereby facilitating improving heat transfer efficiency, and reducing risks of basket failures caused by accumulation of heat.
Inventors:
LIU PENGHUI (CN)
Application Number:
PCT/CN2019/130918
Publication Date:
July 08, 2021
Filing Date:
December 31, 2019
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R7/12
Foreign References:
| CN204046803U | 2014-12-24 | |||
| CN106131757A | 2016-11-16 | |||
| CN201601819U | 2010-10-06 | |||
| CN109151673A | 2019-01-04 | |||
| CN109257684A | 2019-01-22 | |||
| CN208924467U | 2019-05-31 |
Attorney, Agent or Firm:
GUANGZHOU YUEXIU JILY PATENT & TRADEMARK LAW OFFICE (CN)
Download PDF:
Previous Patent: DATA TRANSMISSION METHOD AND APPARATUS
Next Patent: DIRECTIONAL MEASUREMENT METHOD AND DEVICE
Next Patent: DIRECTIONAL MEASUREMENT METHOD AND DEVICE