Title:
ELECTROACOUSTIC TRANSDUCER, SPEAKER MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/233204
Kind Code:
A1
Abstract:
Embodiments of the present application provide an electroacoustic transducer having large vibration amplitude and good sensitivity. The electroacoustic transducer comprises a frame body, a diaphragm, a voice coil, a flexible circuit board, an auxiliary vibrating diaphragm, and a first gasket, the edge of the diaphragm is fixedly connected to the top surface of the frame body, and the voice coil is located on the inner side of the frame body and has one end fixedly connected to the diaphragm. A first fixed part of the flexible circuit board is fixedly connected to the bottom surface of the frame body, and a second fixed part of the flexible circuit board is fixedly connected to the voice coil. The auxiliary vibrating diaphragm is located on one side of the flexible circuit board, a first fixed part of the auxiliary vibrating diaphragm is fixedly connected to the first fixed part of the flexible circuit board, a vibrating part of the auxiliary vibrating diaphragm protrudes in a direction facing away from a connecting branch of the flexible circuit board, and a second fixed part of the auxiliary vibrating diaphragm is fixedly connected to the second fixed part of the flexible circuit board. The first gasket is located between the first fixed part of the flexible circuit board and the first fixed part of the auxiliary vibrating diaphragm. Embodiments of the present application further provide a speaker module comprising the electroacoustic transducer, and an electronic device.
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JPS53133019 | PRODUCTION OF SPEAKER |
WO/2021/000103 | TERMINAL DEVICE |
Inventors:
LIU JINHUA (CN)
Application Number:
PCT/CN2021/093655
Publication Date:
November 25, 2021
Filing Date:
May 13, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04R9/06; H04R9/02
Foreign References:
CN109348372A | 2019-02-15 | |||
CN111131976A | 2020-05-08 | |||
US10187730B1 | 2019-01-22 | |||
CN202010431755A | 2020-05-20 | |||
CN202010683159A | 2020-07-15 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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