Title:
LOUDSPEAKER
Document Type and Number:
WIPO Patent Application WO/2022/134274
Kind Code:
A1
Abstract:
Provided is a loudspeaker. The loudspeaker comprises a housing, and a magnetic circuit system and a vibration system which are disposed in the housing. The vibration system comprises a voice coil which can generate vibration under the action of a magnetic field of the magnetic circuit system, and a diaphragm which is driven by the voice coil. The magnetic circuit system comprises a first magnet and a second magnet, which are disposed on two sides, in a first direction, of the vibration system. The first magnet comprises a middle magnet and at least two side magnets, which are disposed on two sides, in a second direction, of the middle magnet. In the loudspeaker, a first magnetic induction line is formed between the middle magnet and each side magnet of the first magnet, and a second magnetic induction line is formed between the first magnet and the second magnet, such that the magnetic field is enhanced, and the overall sensitivity of the loudspeaker is increased.
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Inventors:
HE ZHAOYANG (CN)
YANG LEI (CN)
YANG LEI (CN)
Application Number:
PCT/CN2021/075034
Publication Date:
June 30, 2022
Filing Date:
February 03, 2021
Export Citation:
Assignee:
CHANGZHOU AMT CO LTD (CN)
International Classes:
H04R9/02
Foreign References:
| CN107124685A | 2017-09-01 | |||
| CN111819866A | 2020-10-23 | |||
| CN212115664U | 2020-12-08 | |||
| CN206136279U | 2017-04-26 | |||
| CN210807645U | 2020-06-19 | |||
| US20200221214A1 | 2020-07-09 |
Attorney, Agent or Firm:
SHENZHEN REFINED INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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