Title:
LOUDSPEAKER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/045138
Kind Code:
A1
Abstract:
Disclosed in the present invention are a loudspeaker and an electronic device using the loudspeaker. The loudspeaker comprises a magnetic circuit system and a vibration system, wherein the magnetic circuit system comprises an inner magnetic circuit portion and an outer magnetic circuit portion, the outer magnetic circuit portion surrounding the periphery of the inner magnetic circuit portion, and the outer magnetic circuit portion and the inner magnetic circuit portion enclosing to form a magnetic gap; the vibration system comprises a diaphragm and a voice coil wire, the diaphragm covering above the magnetic circuit system, and the voice coil wire being wound on the diaphragm in the direction from the center of the diaphragm to an outer edge thereof or in the direction from the outer edge of the diaphragm to the center thereof; and a coil disc formed by winding the voice coil wire covers above the magnetic gap, and the direction of a magnetic induction line generated between the inner magnetic circuit portion and the outer magnetic circuit portion is perpendicular to the winding direction of the voice coil wire. The technical solution of the present invention can reduce the volume of the loudspeaker, thereby facilitating the mounting and use of a miniaturized electronic device.
Inventors:
LI ZHEN (CN)
Application Number:
PCT/CN2021/139385
Publication Date:
March 30, 2023
Filing Date:
December 18, 2021
Export Citation:
Assignee:
GOERTEK TECH CO LTD (CN)
International Classes:
H04R9/06; H04R9/04
Foreign References:
| CN101053278A | 2007-10-10 | |||
| CN1585565A | 2005-02-23 | |||
| CN213906932U | 2021-08-06 | |||
| CN112929801A | 2021-06-08 | |||
| CN112055289A | 2020-12-08 | |||
| CN208908481U | 2019-05-28 | |||
| CN103856875A | 2014-06-11 |
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