US 11,863,931 B2
Speaker
Tao Shao, Shenzhen (CN); Xudong Yan, Shenzhen (CN); and Xiaojiang Gu, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed on Jun. 6, 2022, as Appl. No. 17/833,746.
Claims priority of application No. 202111571521.9 (CN), filed on Dec. 21, 2021.
Prior Publication US 2023/0199372 A1, Jun. 22, 2023
Int. Cl. H04R 1/28 (2006.01); H04R 1/02 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01); H04R 7/04 (2006.01)
CPC H04R 1/2811 (2013.01) [H04R 1/026 (2013.01); H04R 9/027 (2013.01); H04R 9/06 (2013.01); H04R 7/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A speaker, comprising a shell having a receiving space, and a speaker unit received in the receiving space, wherein the speaker unit comprises a frame, and a magnetic path assembly and a vibration assembly which are arranged in the frame; the speaker unit divides the receiving space into a front cavity close to the vibration assembly and a rear cavity close to the magnetic path assembly;
the magnetic path assembly comprises a magnetic bowl, and a main magnet and an auxiliary magnet which are arranged on the magnetic bowl; the auxiliary magnet surrounds an outer periphery of the main magnet; a magnetic gap is formed between the main magnet and the auxiliary magnet;
the vibration assembly comprises a diaphragm and a voice coil connected to the diaphragm; an outer edge of the diaphragm is connected to the frame; an inner edge of the diaphragm is connected with a support; one end of the support away from the diaphragm is supported onto the main magnet; one end of the voice coil away from the diaphragm extends into the magnetic gap;
wherein, a guide pipe is also arranged in the receiving space; one end of the guide pipe is fixed to the magnetic bowl, and the other end of the guide pipe extends into the rear cavity;
the guide pipe is provided with a first through hole in a penetrating manner; the magnetic bowl is provided with a second through hole in a penetrating manner; the main magnet is provided with a third through hole in a penetrating manner; the support is provided with a fourth through hole in a penetrating manner; and the first through hole, the second through hole, the third through hole, and the fourth through hole are communicated in sequence.