US 12,238,467 B2
Speaker box
Jianhua Ding, Shenzhen (CN); Shuwen Wu, Shenzhen (CN); Guoxiu Feng, Shenzhen (CN); and Mushu Xiao, Shenzhen (CN)
Assigned to AAC TECHNOLOGIES (NANNING) CO., LTD., Nanning (CN)
Appl. No. 17/920,011
Filed by AAC TECHNOLOGIES (NANNING) CO., LTD., Nanning (CN)
PCT Filed Jul. 20, 2022, PCT No. PCT/CN2022/106642
§ 371(c)(1), (2) Date Oct. 19, 2022,
PCT Pub. No. WO2024/000683, PCT Pub. Date Jan. 4, 2024.
Claims priority of application No. 202221690877.4 (CN), filed on Jun. 30, 2022.
Prior Publication US 2024/0267660 A1, Aug. 8, 2024
Int. Cl. H04R 1/02 (2006.01); H04R 9/06 (2006.01)
CPC H04R 1/025 (2013.01) [H04R 9/06 (2013.01); H04R 2400/11 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A speaker box, comprising:
a metal housing defining an accommodating cavity;
a speaker received in the accommodating cavity; and
at least two metal pieces arranged between the metal housing and the speaker;
wherein the speaker comprises a vibrating diaphragm, a frame, and a magnetic yoke fixed to the frame; the at least two metal pieces are welded and fixed to the magnetic yoke and the metal housing;
wherein the metal housing comprises an upper housing closest to the vibrating diaphragm and a lower housing away from the vibrating diaphragm; the upper housing comprises a first side wall arranged parallel to a vibration direction of the vibrating diaphragm; each of two metal pieces of the at least two metal pieces comprises a main body portion and an extending portion; each main body portion is at least partially arranged between the speaker and the first side wall; each extending portion bends inwardly from one side of a corresponding main body portion away from the vibrating diaphragm; each extending portion is fixed on a lower surface of the magnetic yoke away from the vibrating diaphragm; each main body portion is fixedly connected to the first side wall.