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1. CN212588508 - Loudspeaker

Office
China
Application Number 202021362303.5
Application Date 10.07.2020
Publication Number 212588508
Publication Date 23.02.2021
Publication Kind U
IPC
H04R 9/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
02Details
H04R 9/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
06Loudspeakers
CPC
H04R 9/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
06Loudspeakers
H04R 9/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
9Transducers of moving-coil, moving-strip, or moving-wire type
02Details
Applicants AAC TECHNOLOGIES (SINGAPORE) CO., LTD.
瑞声科技(新加坡)有限公司
Inventors XIAO BO
肖波
LINGHU RONGLIN
令狐荣林
Agents 深圳紫辰知识产权代理有限公司 44602
Title
(EN) Loudspeaker
(ZH) 扬声器
Abstract
(EN) The utility model provides a loudspeaker, which comprises a frame, a vibration system and a magnetic circuit system, the vibration system comprises a diaphragm fixed on the frame, a voice coil assembly fixed on the diaphragm and an auxiliary diaphragm spaced from the diaphragm, one end of the auxiliary diaphragm is fixed on the frame, and the other end of the auxiliary diaphragm is fixed on one side of the voice coil assembly far away from the diaphragm. The magnetic circuit system comprises a magnet yoke fixedly held on the frame, one side of the magnet yoke close to the auxiliary diaphragm is recessed away from the auxiliary diaphragm to form a groove, the orthographic projection of the auxiliary diaphragm on the magnet yoke along the vibration direction of the diaphragm is at least partially located in the groove, and a reinforcing rib is arranged in the groove. The side, close to the magnet yoke, of the auxiliary vibrating diaphragm collapses in the direction away from the magnet yoke to form a step part used for avoiding the reinforcing ribs, and the step part and the reinforcing ribs correspond to each other in the vibrating direction of the vibrating diaphragm and are arranged at intervals. The loudspeaker provided by the utility model can effectively prevent the problem that the magnetic circuit system is sunken due to the deformation of the magnet yoke in the falling process.
(ZH) 本实用新型提供了一种扬声器,其包括盆架、振动系统及磁路系统,振动系统包括固持于盆架的振膜、固定于振膜的音圈组件以及与振膜间隔设置的辅助振膜,辅助振膜的一端固定于盆架,其另一端固定于音圈组件远离振膜的一侧,磁路系统包括固持于盆架的磁轭,磁轭靠近辅助振膜的一侧向远离辅助振膜凹陷形成凹槽,辅助振膜沿振膜的振动方向在磁轭上的正投影至少部分位于凹槽内,凹槽内设有加强筋,辅助振膜靠近磁轭的一侧向背离磁轭的方向塌陷形成有用于避让加强筋的台阶部,台阶部与加强筋沿振膜的振动方向对应且间隔设置。本实用新型的扬声器可以有效地防止跌落中出现因磁轭形变导致的磁路系统凹陷的问题。
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