US 12,452,604 B2
Loudspeaker and electronic device
Wenguang Chen, Dongguan (CN); Mingguang Guo, Dongguan (CN); and Ling Tao, Dongguan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Feb. 28, 2023, as Appl. No. 18/175,767.
Application 18/175,767 is a continuation of application No. PCT/CN2021/102268, filed on Jun. 25, 2021.
Claims priority of application No. 202010903510.5 (CN), filed on Sep. 1, 2020.
Prior Publication US 2023/0232158 A1, Jul. 20, 2023
Int. Cl. H04R 9/04 (2006.01); H04R 1/02 (2006.01); H04R 7/12 (2006.01); H04R 7/18 (2006.01); H04R 9/02 (2006.01); H04R 9/06 (2006.01)
CPC H04R 9/043 (2013.01) [H04R 1/028 (2013.01); H04R 7/12 (2013.01); H04R 7/18 (2013.01); H04R 9/025 (2013.01); H04R 9/045 (2013.01); H04R 9/06 (2013.01); H04R 2400/11 (2013.01); H04R 2499/15 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A loudspeaker, comprising:
a yoke;
a magnet;
a vibration diaphragm;
a voice coil; and
a damper,
wherein the yoke comprises a bottom part and a sleeve located on a side of the bottom part,
wherein the magnet is annular, and the magnet is sleeved on an outer side of the sleeve,
wherein the voice coil is sleeved on the outer side of the sleeve and is located between the sleeve and the magnet,
wherein an end face that is of the voice coil and that faces the vibration diaphragm is fixedly coupled to a side that is of the vibration diaphragm and that faces the bottom part,
wherein the vibration diaphragm includes a main body and an extension part, the main body is annular, the extension part is tubular, the extension part extends from an inner edge of the main body in a direction toward the bottom part, and an outer edge of the damper is fixedly coupled to an inner wall of the extension part, and
wherein the damper is located in a region enclosed by the sleeve.