US 12,452,597 B2
Coaxial speaker
Zhang Ren, Shenzhen (CN); Qi Wang, Shenzhen (CN); and Zhiwei Zhong, Shenzhen (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Appl. No. 17/914,364
Filed by AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
PCT Filed Jul. 20, 2022, PCT No. PCT/CN2022/106754
§ 371(c)(1), (2) Date Sep. 26, 2022,
PCT Pub. No. WO2024/000690, PCT Pub. Date Jan. 4, 2024.
Claims priority of application No. 202221691733.0 (CN), filed on Jun. 30, 2022.
Prior Publication US 2025/0142259 A1, May 1, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H04R 9/02 (2006.01); H04R 7/04 (2006.01); H04R 9/06 (2006.01)
CPC H04R 7/04 (2013.01) [H04R 9/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A coaxial speaker, comprising:
a magnetic circuit system;
a first sound production unit; and
a second sound production unit;
wherein the first sound production unit and the second sound production unit are coaxially disposed, and the first sound production unit surrounds an outer side of the second sound production unit; the first sound production unit comprises a first vibrating diaphragm and a first voice coil, the first voice coil is configured to drive the first vibrating diaphragm to vibrate and produce sound; the second sound production unit comprises a second vibrating diaphragm and a second voice coil, the second voice coil is configured to drive the second vibrating diaphragm to vibrate and produce sound; the magnetic circuit system comprises a first magnetic gap and a second magnetic gap, the first voice coil is inserted into the first magnetic gap, the second voice coil is inserted into the second magnetic gap; and the first vibrating diaphragm and the second vibrating diaphragm are integrally formed; the coaxial speaker further comprises a first frame and a second frame; the first frame surrounds an outer side of the second frame, an outer fixing portion of the first vibrating diaphragm is fixed to the first frame, an inner fixing portion of the first vibrating diaphragm is fixed to the second frame, the second vibrating diaphragm is fixed to the second frame; and the first vibrating diaphragm, the second vibrating diaphragm, the first frame, and the second frame are integrally formed.