Patent ID: 11863931
Assignee: AAC MICROTECH (CHANGZHOU) CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
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.