Title:
SPEAKER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/155564
Kind Code:
A1
Abstract:
Embodiments of the present application provide a speaker and an electronic device. The speaker comprises a first sound production unit and a second sound production unit. The first sound production unit comprises a first magnetic member and a first voice coil, the first voice coil being located on a first side of the first magnetic member; the second sound production unit comprises a second magnetic member and a second voice coil, the second magnetic member being located on a second side of the first magnetic member, and the second voice coil being located on a fourth side of the second magnetic member; by setting the magnetism of at least part of the second magnetic member on a third side facing at least part of the first magnetic member on the second side to be opposite, the first magnetic member and the second magnetic member jointly generate a circular magnetic field, that is, a magnetic circuit, mutually enhancing the magnetic induction intensity of the other unit, that is, the shared magnetic circuit system can enhance the magnetic induction intensity received by the voice coils in the second sound production unit and the first sound production unit, thereby improving the sound pressure levels of the second sound production unit and the first sound production unit in the speaker of the embodiments of the present application.
More Like This:
| WO/2002/039781 | LOUDSPEAKER DRIVER |
| WO/2021/258354 | LOUDSPEAKER AND MAGNETIC CIRCUIT SYSTEM THEREOF |
Inventors:
CHEN ZHIPENG (CN)
ZHANG TIENAN (CN)
JIA FENGCHAO (CN)
ZHANG TIENAN (CN)
JIA FENGCHAO (CN)
Application Number:
PCT/CN2022/138298
Publication Date:
August 24, 2023
Filing Date:
December 12, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R9/06
Domestic Patent References:
| WO2022006943A1 | 2022-01-13 |
Foreign References:
| CN114697825A | 2022-07-01 | |||
| CN108574918A | 2018-09-25 | |||
| CN113286232A | 2021-08-20 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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