US 12,317,018 B2
Cover plate and speaker module
Jingwei Yu, Changzhou (CN); Qibo Li, Changzhou (CN); Zhongfeng Gao, Changzhou (CN); and Siyuan Ni, Changzhou (CN)
Assigned to AAC Microtech (Changzhou) Co., Ltd., Changzhou (CN)
Filed by AAC Microtech (Changzhou) Co., Ltd., Jiangsu (CN)
Filed on May 25, 2023, as Appl. No. 18/324,130.
Application 18/324,130 is a continuation of application No. PCT/CN2023/090040, filed on Apr. 23, 2023.
Claims priority of application No. 202320304563.4 (CN), filed on Feb. 23, 2023.
Prior Publication US 2024/0292137 A1, Aug. 29, 2024
Int. Cl. H04R 1/02 (2006.01)
CPC H04R 1/025 (2013.01) 16 Claims
OG exemplary drawing
 
1. A cover plate, comprising:
a substrate provided with a notch at a side edge; and
a bridge structure with two ends respectively fixed to sidewalls of the notch and a middle recessed toward a side,
wherein the bridge structure comprises a first rib and a second rib respectively fixed to two opposite sidewalls of the notch, and a bridge body fixed to the first rib and the second rib, wherein the first rib has a first forming fillet formed at a junction between the first rib and the substrate, and a second forming fillet formed at a junction between the first rib and the bridge body, wherein the first forming fillet has a radius greater than 0.6 mm, the second forming fillet has a radius greater than 0.6 mm; an included angle formed between a length extending direction of the first rib and a plane of the bridge body is greater than 120°; and the first rib has a width smaller than a width of the second rib.