Title:
SOUNDING DEVICE AND ELECTRONIC TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/120286
Kind Code:
A1
Abstract:
The present invention discloses a sounding device. The sounding device comprises: a housing having an accommodating space within which a voice coil and a magnetic circuit system are mounted; a magnetic gap is formed in the magnetic circuit system, and one end of the voice coil is arranged in the magnetic gap; the magnetic circuit system comprises two magnetic conductive yokes stacked in the vertical direction; heat dissipation holes are respectively formed in the two magnetic conductive yokes, the heat dissipation holes are communicated with the magnetic gap, and the heat dissipation holes are configured to discharge heat generated inside the sounding device; and a waterproof breathable component is further arranged between the two magnetic conductive yokes, and the waterproof breathable component covers the heat dissipation holes. The magnetic conductive yokes in the sounding device of the present invention is provided with the heat dissipation holes, the heat dissipation holes are communicated with the magnetic gap, can discharge the heat generated inside the sounding device, and then rapidly reduce the temperature of the voice coil.
Inventors:
LI CHENGWEI (CN)
ZHANG QINGYI (CN)
CHEN MENG (CN)
ZHANG QINGYI (CN)
CHEN MENG (CN)
Application Number:
PCT/CN2019/128997
Publication Date:
June 24, 2021
Filing Date:
December 27, 2019
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/02
Foreign References:
| CN201608873U | 2010-10-13 | |||
| CN208638592U | 2019-03-22 | |||
| CN102905214A | 2013-01-30 | |||
| CN207354604U | 2018-05-11 | |||
| CN206472300U | 2017-09-05 | |||
| CN108566598A | 2018-09-21 | |||
| KR20140098465A | 2014-08-08 |
Download PDF:
Previous Patent: PROFINET PROTOCOL-BASED ACCESS METHOD IN INDUSTRIAL SDN
Next Patent: SOUND PRODUCTION APPARATUS AND ELECTRONIC TERMINAL
Next Patent: SOUND PRODUCTION APPARATUS AND ELECTRONIC TERMINAL