Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LOUDSPEAKER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/121740
Kind Code:
A1
Abstract:
Disclosed are a loudspeaker and an electronic device. In the loudspeaker, a moving-coil speaker is taken as a first sound production unit (200), a second sound production unit (300) is arranged in the middle of one side of a magnetic circuit structure (210) of the first sound production unit (200), and the first sound production unit (200) and the second sound production unit (300) respectively output sounds of different frequencies. The loudspeaker can meet the requirements for both treble and bass, thereby improving the high-frequency extension and low-frequency submergence performance. The axial size of the loudspeaker in the embodiments of the present application is relatively small, and the overall thickness thereof is similar to the thickness of a single moving-coil unit. The second sound production unit (300) and the first sound production unit (200) are coaxially arranged, and a treble vibration sound source face (300a) of the second sound production unit (300) and a bass vibration sound source face (200a) of the first sound production unit (200) are arranged in the same plane, such that a situation where there is a phase difference between sounds of different frequencies can be alleviated, and the sense of spatial positions of musical instruments is more accurate. A voice coil (220) and an annular vibrating diaphragm (230) are elastically supported on a cone frame (100) by using an elastic suspension (400), so as to facilitate the vibration of the voice coil (220) and the annular vibrating diaphragm (230) within a predetermined range, thereby alleviating the situation of swinging polarization, and improving the reliability.

More Like This:
Inventors:
XU CHANGRONG (CN)
GUO LI (CN)
ZHANG TIENAN (CN)
PI SHIJIA (CN)
LIU WEI (CN)
XU CHAO (CN)
Application Number:
PCT/CN2021/134612
Publication Date:
June 16, 2022
Filing Date:
November 30, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R9/02
Foreign References:
CN204334907U2015-05-13
CN110784803A2020-02-11
CN106341760A2017-01-18
US9674603B12017-06-06
US20020094097A12002-07-18
US6269168B12001-07-31
US20200221214A12020-07-09
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
Download PDF: