US 12,335,707 B2
Double-sided speaker device
Xudong Yan, Changzhou (CN); Tao Shao, Changzhou (CN); and Xiaojiang Gu, Changzhou (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Jiangsu (CN)
Filed on Jun. 6, 2023, as Appl. No. 18/330,329.
Application 18/330,329 is a continuation of application No. PCT/CN2022/143973, filed on Dec. 30, 2022.
Claims priority of application No. 202223196162.6 (CN), filed on Nov. 30, 2022.
Prior Publication US 2024/0179469 A1, May 30, 2024
Int. Cl. H04R 9/02 (2006.01); H04R 7/12 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01)
CPC H04R 9/025 (2013.01) [H04R 7/127 (2013.01); H04R 9/046 (2013.01); H04R 9/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A double-sided sound device, comprising:
a frame;
a first vibration system;
a second vibration system; and
a magnetic circuit system;
wherein the frame comprises an upper end opening and a lower end opening, the first vibration system is disposed at the upper end opening of the frame, the second vibration system is disposed at the lower end opening of the frame, and the magnetic circuit system is disposed in the frame; the first vibration system comprises a first vibrating diaphragm and a first voice coil, and the first voice coil drives the first vibrating diaphragm to generate sound; the second vibration system comprises a second vibrating diaphragm and a second voice coil, and the second voice coil drives the second vibrating diaphragm to generate sound; the magnetic circuit system comprises an outer magnetic yoke, a magnet portion, and a non-magnetically conductive connector, the outer magnetic yoke is fixed to the frame, the magnet portion is disposed in the outer magnetic yoke, and the non-conductive non-magnetically conductive connector connects the outer magnetic yoke with the magnet portion; the outer magnetic yoke comprises a side wall and a first flange portion, the side wall surrounds the magnet portion and the first flange portion extends from an upper end, close to the first vibrating diaphragm, of the side wall toward a direction close to the magnet portion; the magnet portion comprises an upper pole core, a lower pole core, and a magnetic steel, the upper pole core is close to the first vibrating diaphragm, the lower pole core is close to the second vibrating diaphragm, and the magnetic steel is clamped between the upper pole core and the lower pole core; the non-magnetically conductive connector connects the first flange portion and the lower pole core, the first voice coil is inserted between the non-magnetically conductive connector and the magnet portion, and the second voice coil is inserted between the non-magnetically conductive connector and the side wall.