US 12,407,986 B2
Sounding device
Zhang Ren, Shenzhen (CN); and Zhiwei Zhong, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed on Apr. 17, 2023, as Appl. No. 18/301,277.
Application 18/301,277 is a continuation of application No. PCT/CN2022/120143, filed on Sep. 21, 2022.
Claims priority of application No. 202222298836.7 (CN), filed on Aug. 30, 2022.
Prior Publication US 2024/0073620 A1, Feb. 29, 2024
Int. Cl. H04R 9/02 (2006.01); H04R 7/18 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01)
CPC H04R 9/025 (2013.01) [H04R 7/18 (2013.01); H04R 9/045 (2013.01); H04R 9/06 (2013.01); H04R 2400/07 (2013.01); H04R 2400/11 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A sounding device, including:
a first frame;
a magnetic circuit system fixed on the first frame,
a first vibration system having a first diaphragm with an outer peripheral edge fixed to the first frame and a first voice coil for driving the first diaphragm to vibrate for generating sound;
a first magnetic gap formed at one side of the magnetic circuit system close to the first vibration system, in which the first voice coil is inserted and suspended;
a second magnetic gap formed at the side of the magnetic circuit system close to the first vibration system and being surrounded by the first magnetic gap;
a second frame fixed on a top of the magnetic circuit system;
a second vibration system including a second diaphragm with an outer peripheral edge fixed to a side of the second frame away from the magnetic circuit system, and a second voice coil inserted and suspended in the second magnetic gap for driving the second diaphragm to vibrate; and,
a conductive insertion member fixed to the magnetic circuit system and penetrating the magnetic circuit system from one side of the magnetic circuit system away from the first vibration system to the other side for connecting an external electrical signal; wherein
both the first and second magnetic gaps are disposed around the conductive insertion member; a voice coil lead wire of the second voice coil is drawn out from an inner peripheral side and extended to be electrically connected to the conductive insertion member; the conductive insertion member includes an insertion member body penetrating the magnetic circuit system from the side of the magnetic circuit system away from the first vibration system to the other side, and two conductive sheets penetrating the insertion member body from one side of the insertion member body close to the second vibration system to the other side; one ends of the two conductive sheets close to the second vibration system are respectively fixed to the top end of the insertion member body and spaced apart to form a welding pad of the conductive insertion member; the voice coil lead wire of the second voice coil is electrically connected to the welding pad.