US 12,219,339 B2
Speaker
Hongjian Hu, Shenzhen (CN); Min Su, Shenzhen (CN); and Shuai Li, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed on Jul. 28, 2022, as Appl. No. 17/876,511.
Claims priority of application No. 202123199074.7 (CN), filed on Dec. 17, 2021.
Prior Publication US 2023/0199399 A1, Jun. 22, 2023
Int. Cl. H04R 9/06 (2006.01); H04R 7/04 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 7/04 (2013.01); H04R 9/027 (2013.01); H04R 9/045 (2013.01); H04R 9/046 (2013.01); H04R 2209/041 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A speaker, comprising a frame, a vibration unit fixed to the frame, and a magnetic circuit unit driving the vibration unit to vibrate and provided with a magnetic gap, the vibration unit comprising a diaphragm fixed to the frame, a voice coil component fixed to the diaphragm and driving the diaphragm to vibrate to produce sound, and a lower voice diaphragm component elastically supporting the voice coil component, wherein the voice coil component comprises a voice coil inserted in the magnetic gap and a holder fixed to the diaphragm and the voice coil, the voice coil comprises first voice coil portions spaced from and opposite to each other and second voice coil portions spaced from and opposite to each other and connected to the first voice coil portions, the first voice coil portion is arranged close to the lower voice diaphragm component relative to the second voice coil portion and is fixed to the lower voice diaphragm component through the holder, the first voice coil portion comprises two first sides arranged opposite to each other and a second side connecting the two first sides, and the second voice coil portion protrudes, relative to the first side, away from the second side along a direction perpendicular to a vibration direction of the diaphragm;
wherein the magnetic circuit unit comprises a lower clamp plate, a magnet component stacked on the lower clamp plate, and an upper clamp plate fixed to a side of the magnet component away from the lower clamp plate, a positioning hole is provided penetrating through the upper clamp plate along the vibration direction, a positioning post protrudes from a side of the frame away from the diaphragm along the vibration direction, and the positioning post is inserted in the positioning hole to realize the positioning and fixing of the frame and the upper clamp plate.