US 12,439,208 B2
Full-frequency band high quality planar resonance speaker with a bar and sound tunnels
Haiou Jin, Suzhou (CN); Nianbo Wu, Suzhou (CN); Xinxi He, Suzhou (CN); Xinzhi Zhu, Suzhou (CN); Biying Li, Suzhou (CN); and Ping Yang, Suzhou (CN)
Assigned to SUZHOU LI YUE MUSICAL INSTRUMENTS CO., LTD., Suzhou (CN)
Appl. No. 18/026,278
Filed by SUZHOU LI YUE MUSICAL INSTRUMENTS CO., LTD., Jiangsu (CN)
PCT Filed Dec. 15, 2020, PCT No. PCT/CN2020/136577
§ 371(c)(1), (2) Date Mar. 14, 2023,
PCT Pub. No. WO2022/036955, PCT Pub. Date Feb. 24, 2022.
Claims priority of application No. 202010838328.6 (CN), filed on Aug. 19, 2020.
Prior Publication US 2023/0370779 A1, Nov. 16, 2023
Int. Cl. H04R 7/06 (2006.01); H04R 1/24 (2006.01); H04R 7/04 (2006.01); H04R 7/20 (2006.01)
CPC H04R 7/06 (2013.01) [H04R 1/24 (2013.01); H04R 7/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A full-frequency band high quality planar resonance speaker comprising:
an outer frame; and
a planar diaphragm with an outer edge that is connected to the outer frame via an elastic connector, wherein:
a sound source is arranged in a middle of the diaphragm;
a first groove and a second groove are arranged on a surface of at least one side of the diaphragm;
the first groove and the second groove are crossed and connected with each other on the surface of the at least one side of the diaphragm and an intersection point is located at the middle of the diaphragm;
the surface of the at least one side of the diaphragm is equally divided into four resonance regions;
the diaphragm is provided with a bar assembly at the middle of the diaphragm on the surface of the at least one side of the diaphragm;
the bar assembly comprises a plurality of strip-shaped bar members, which are arranged on both sides of the first groove and the second groove in pairs; and
the first groove and the second groove respectively form a sound tunnel on the surface of the at least one side of the diaphragm.