US 12,335,705 B2
Speaker
Dijiang Tong, Shenzhen (CN); Huanbin Liao, Shenzhen (CN); and Yajian Zheng, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed on Dec. 28, 2022, as Appl. No. 18/090,443.
Application 18/090,443 is a continuation of application No. PCT/CN2022/125111, filed on Oct. 13, 2022.
Claims priority of application No. 202222132717.4 (CN), filed on Aug. 12, 2022.
Prior Publication US 2024/0056738 A1, Feb. 15, 2024
Int. Cl. H04R 25/00 (2006.01); H04R 1/28 (2006.01); H04R 7/12 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01)
CPC H04R 7/127 (2013.01) [H04R 1/2811 (2013.01); H04R 9/025 (2013.01); H04R 9/046 (2013.01); H04R 9/06 (2013.01); H04R 2207/00 (2013.01); H04R 2499/11 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A speaker, comprising:
a frame,
a vibration system fixed to the frame, comprising a diaphragm fixed to the frame and a voice coil driving the diaphragm to vibrate and emit sounds, and
a magnetic circuit system fixed to the frame, wherein
the diaphragm comprises a dome and a suspension surrounding and connected with the dome, the dome comprises a first metal dome with a through hole and a second dome covering the through hole, the first metal dome is located between the suspension and the second dome, the first metal dome comprises a main portion, a first fixing portion connected with the second dome and a second fixing portion connected with the suspension, the main portion is arranged between the first fixing portion and the second fixing portion, the second dome comprises a body portion and a groove recessed from an outer edge of the body portion toward the magnetic circuit system, the body portion is arranged in the through hole, a lower surface of the first fixing portion is fixedly connected with the groove.