Title:
SOUND PRODUCING DEVICE AND EARPHONE
Document Type and Number:
WIPO Patent Application WO/2022/166388
Kind Code:
A1
Abstract:
Disclosed are a sound producing device and an earphone. The sound producing device comprises a tweeter unit and a woofer unit, wherein the tweeter unit comprises a tweeter housing, and a magnetic conductive diaphragm and two tweeter magnetic circuit systems which are arranged in the tweeter housing, the tweeter magnetic circuit system comprises a first magnetic steel attached to the tweeter housing and a coil arranged around the first magnetic steel, the magnetic conductive diaphragm is suspended between the tweeter magnetic circuit systems which are arranged opposite and spaced apart from each other, and the magnetic conductive diaphragm is used for vibrating to generate sound under the action of an alternating electromagnetic field generated by the tweeter magnetic circuit systems; and the woofer unit comprises a woofer housing, and a woofer diaphragm, a woofer voice coil and a woofer magnetic circuit system which are arranged in the woofer housing, the woofer unit is fixed to the tweeter housing, the woofer diaphragm is connected to the woofer voice coil, and a woofer magnetic gap for the woofer voice coil to insert is formed in the woofer magnetic circuit system. A vibration component to be driven by the tweeter magnetic circuit systems has a small mass and the electroacoustic conversion efficiency is high.
Inventors:
WANG YING (CN)
WANG MIAOMIAO (CN)
GUO XIAODONG (CN)
WANG MIAOMIAO (CN)
GUO XIAODONG (CN)
Application Number:
PCT/CN2021/136392
Publication Date:
August 11, 2022
Filing Date:
December 08, 2021
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/02; H04R1/10; H04R9/04; H04R9/06
Foreign References:
| CN214381369U | 2021-10-08 | |||
| CN113055795A | 2021-06-29 | |||
| CN112770237A | 2021-05-07 | |||
| CN214481241U | 2021-10-22 | |||
| CN112770233A | 2021-05-07 | |||
| CN112770234A | 2021-05-07 | |||
| CN209787376U | 2019-12-13 | |||
| CN108449700A | 2018-08-24 | |||
| US20150373435A1 | 2015-12-24 | |||
| CN112243183A | 2021-01-19 |
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