Title:
LOUDSPEAKER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/104066
Kind Code:
A1
Abstract:
Disclosed are a loudspeaker and an electronic device. The loudspeaker comprises a control unit, a vibration system and a magnetic circuit system having a magnetic gap. The vibration system comprises a vibration diaphragm and a voice coil assembly provided corresponding to the magnetic gap, the voice coil assembly comprising a skeleton voice coil and a driving voice coil, one end of the skeleton voice coil being connected to the vibration diaphragm, and the driving voice coil being connected to the other end of the skeleton voice coil. The control unit is used to control the skeleton voice coil to be powered on when the skeleton voice coil moves to a first position in a direction close to the magnetic gap; and the control unit is further used to control the skeleton voice coil to be powered off when the skeleton voice coil moves to a second position in a direction away from the magnetic gap. In this way, the present invention not only ensures/improves the acoustic performance of a loudspeaker, but also reduces the power consumption of the loudspeaker.
Inventors:
WANG JIANJIAN (CN)
XU YANDONG (CN)
XU YANDONG (CN)
Application Number:
PCT/CN2020/128907
Publication Date:
June 03, 2021
Filing Date:
November 16, 2020
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
| CN110856087A | 2020-02-28 | |||
| CN110446144A | 2019-11-12 | |||
| CN102970641A | 2013-03-13 | |||
| US20140056465A1 | 2014-02-27 | |||
| US20180152773A1 | 2018-05-31 |
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