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1. 发明公开

EP4124063A1 MOBILE TERMINAL 审中-实审
公开(公告)号：EP4124063A1
公开(公告)日：2023-01-25
申请号：EP21795846.1
申请日：2021-03-31
申请人： Huawei Technologies Co., Ltd.
发明人： FENG, Lu , LIU, Yang
IPC分类号： H04R1/20
摘要： A mobile terminal is provided, including a housing (21) and a speaker (10). The speaker (10) includes a box (11) and a sound generation unit (12). The box (11) includes a first cover body (117), a second cover body (118), and a cover plate (13). A first chamber is formed between the sounding unit (12) and the inner bottom wall of the first cover body, and a sound hole (113) is disposed in the first cavity (111). A second cavity (112) is formed between the sound generation unit (12) and the second cover body (118). The sound generation unit (12) includes a diaphragm (123). A resonant cavity (114) with a through hole (116) on one side is formed in the first cover body (117), the cover plate (13) covers the through hole (116), and a microhole (115) is disposed. Airflow enters the second cavity (112) through the microhole (115), so that the diaphragm (123) does not collide with a magnetic part (125) in the sound generation unit (12) during vibration.

2. 发明公开

EP4064664A1 LOUDSPEAKER MODULE AND ELECTRONIC DEVICE 有权
公开(公告)号：EP4064664A1
公开(公告)日：2022-09-28
申请号：EP20904366.0
申请日：2020-12-15
申请人： Huawei Technologies Co., Ltd.
发明人： FENG, Lu , LIU, Yang , LI, Shizhe , CHANG, Jing , LI, Yunhai
IPC分类号： H04M1/03
摘要： This application provides a speaker module, including: a first enclosure, a speaker core, and a waterproof breathable film. The first enclosure is provided with an accommodating groove, the speaker core is mounted on the accommodating groove, the speaker core includes a sound diaphragm, a front sound cavity is formed between the sound diaphragm and the first enclosure, and a rear sound cavity is on a side that is of the sound diaphragm and that is away from the front sound cavity. The first enclosure is further provided with a resonant groove, a bottom of the resonant groove is provided with a communicating hole, and the resonant groove communicates with the front sound cavity through the communicating hole. The waterproof breathable film covers an opening that is of the resonant groove and that faces the rear sound cavity, to isolate the resonant groove from the rear sound cavity, so as to balance atmospheric pressure of the front sound cavity and the rear sound cavity when the speaker module does not work, avoid a problem that sound diaphragm is shifted and sound quality of the speaker module is affected due to different atmospheric pressure of the front sound cavity and the rear sound cavity, and improve the sound quality of the speaker module. This application further provides an electronic device.

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