Title:
SOUND EMISSION DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/205708
Kind Code:
A1
Abstract:
Provided in an embodiment of the present invention are a sound emission device and an electronic apparatus. The sound emission device comprises a vibration system, a magnetic circuit system and a housing. The housing comprises an installation portion having at least one open end, and a rear cavity portion correspondingly arranged at an outer side of a first sidewall of the installation portion and used to form a rear cavity. The magnetic circuit system and the vibration system are fixed inside the installation portion. A rear sound hole is arranged on the first sidewall at a position facing the rear cavity and used to communicate a magnetic gap in the magnetic circuit system and the rear cavity. The embodiment of the present invention satisfies the requirement of a compact size and has favorable performance.
Inventors:
ZHU TING (CN)
ZHANG CHENGFEI (CN)
ZHANG CHENGFEI (CN)
Application Number:
PCT/CN2018/125163
Publication Date:
October 31, 2019
Filing Date:
December 29, 2018
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN108566599A | 2018-09-21 | |||
| CN203301728U | 2013-11-20 | |||
| CN201995123U | 2011-09-28 | |||
| CN203632856U | 2014-06-04 |
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