US 12,335,712 B2
Speaker
Huhu Yang, Shenzhen (CN); Wei Wei, Shenzhen (CN); Zhaoyu Yin, Shenzhen (CN); and Zhizhu Chen, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN); and AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN); and AAC ACOUSTIC TECHNOLOGIES (SHENZHEN) CO., LTD., Shenzhen (CN)
Filed on Nov. 7, 2022, as Appl. No. 17/981,495.
Claims priority of application No. 202220782431.8 (CN), filed on Apr. 6, 2022.
Prior Publication US 2023/0328451 A1, Oct. 12, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 3/00 (2006.01); H04R 1/06 (2006.01); H04R 7/12 (2006.01); H04R 7/18 (2006.01); H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01)
CPC H04R 9/06 (2013.01) [H04R 1/06 (2013.01); H04R 3/00 (2013.01); H04R 7/127 (2013.01); H04R 7/18 (2013.01); H04R 9/025 (2013.01); H04R 9/046 (2013.01); H04R 2400/11 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A speaker, comprising:
a frame,
a vibration system fixed to the frame, comprising a diaphragm fixed to the frame, a voice coil with a lead wire, and a flexible circuit board assembly fixed to the frame and electrically connected with the voice coil,
a magnetic circuit system for driving the vibration system to vibrate and emit sounds, fixed to the frame and comprising a magnetic gap, wherein
the flexible circuit board assembly comprises at least two flexible circuit boards and a soldering sheet, the at least two flexible circuit boards comprise a first flexible circuit board, a second flexible circuit board, a third flexible circuit board, a fourth flexible circuit board, the first flexible circuit board, the second flexible circuit board, the third flexible circuit board, and the fourth flexible circuit board are spaced apart from each other and respectively arranged at four corners of the frame, each flexible circuit board comprises an outer fixing portion fixedly connected with the frame, an inner fixing portion spaced from the outer fixing portion, and an elastic connecting arm connecting the outer fixing portion and the inner fixing portion;
each inner fixing portion comprises an upper surface close to the diaphragm, the lead wire is arranged on a side of the first flexible circuit board close to the diaphragm, the upper surface of the first flexible circuit board is provided with a first pad, the upper surface of the second flexible circuit board is provided with a second pad, the lead wire is electrically connected to the first pad;
the soldering sheet electrically connects the voice coil and the second flexible circuit board and comprises a first fixing portion electrically connected to the second pad, a second fixing portion bent and extending from the first fixing portion to a direction away from the diaphragm, and a third fixing portion bent and extending from an end of the second fixing portion away from the first fixing portion to the voice coil, the third fixing portion is electrically connected to a bottom surface of the voice coil.