公开(公告)号：US20250020946A1

公开(公告)日：2025-01-16

申请号：US18900370

申请日：2024-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li Guo ,  Renxuan Qin ,  Yang Liu ,  Lichen Pang ,  Tingjia Shan

IPC: G02C11/00 ,  H04R1/02 ,  H04R1/22 ,  H04R9/02 ,  H04R9/04

Abstract: The speaker module includes a housing and a speaker. The housing has mounting space, the speaker divides the mounting space into first space and second space, and when the speaker works, a first sound wave is formed in the first space, and a second sound wave is formed in the second space, where the second sound wave and the first sound wave have equal amplitudes and opposite phases. The housing further has a third sound emitting hole and an inverter cavity, one end of the inverter cavity communicates with the second space, the other end of the inverter cavity communicates with the third sound emitting hole, the inverter cavity is configured to form a third sound wave at the third sound emitting hole when the speaker works, a phase of the third sound wave is the same as a phase of the first sound wave.

公开(公告)号：US20230328452A1

公开(公告)日：2023-10-12

申请号：US18042758

申请日：2021-08-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jinhua Liu ,  Tao Yan ,  Li Guo ,  Chien Feng Yeh ,  Ligang Yu

IPC: H04R9/06 ,  H05K1/18 ,  H04R9/02 ,  H04R9/04

CPC classification number: H04R9/06 ,  H04R9/025 ,  H04R9/046 ,  H05K1/189 ,  H04R2499/11

Abstract: This application provides an electroacoustic transducer and an electronic device, the electroacoustic transducer includes a central magnet, two side magnets, a lower electrode plate, a side electrode plate, a frame, a sound diaphragm, a voice coil, and two flexible circuit boards. The central magnet and the two side magnets are disposed on the lower electrode plate. The side electrode plate is disposed on a surface of the two side magnets which is opposite to the lower electrode plate. Two surfaces of the frame are respectively fixedly connected to the sound diaphragm and a surface of the side electrode plate which is opposite to the lower electrode plate. The voice coil is located inside the frame. The two flexible circuit boards are symmetrically distributed on a peripheral side of the voice coil, two ends of the flexible circuit board are respectively connected to the voice coil and the side electrode plate.