US 11,927,816 B2
Optical module optimized for EMI shielding performance and electromagnetic shielding structure of the optical module
Kun Shu, Wuhan (CN); Yong Zhang, Wuhan (CN); Qijian Xu, Wuhan (CN); and Yu Zhai, Wuhan (CN)
Assigned to Wuhan HGGenuine Optics Tech Co., Ltd., Wuhan (CN)
Filed by Wuhan HGGenuine Optics Tech Co., Ltd., Wuhan (CN)
Filed on Jan. 24, 2022, as Appl. No. 17/581,994.
Application 17/581,994 is a continuation of application No. PCT/CN2021/077165, filed on Feb. 22, 2021.
Claims priority of application No. 202110160748.8 (CN), filed on Feb. 5, 2021.
Prior Publication US 2022/0252802 A1, Aug. 11, 2022
Int. Cl. G02B 6/42 (2006.01); H05K 9/00 (2006.01)
CPC G02B 6/4277 (2013.01) [G02B 6/4278 (2013.01); H05K 9/002 (2013.01); H05K 9/0058 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical module optimized for an electromagnetic radiation (EMI) shielding performance, comprising: a base, an upper cover, and an unlocking device connected by an unlocking handle and a movable unlocking piece wherein
the base is butted and clamped with the upper cover to form a limiting groove for accommodating an unlocking latch on each of both sides of the movable unlocking piece, the unlocking latch is correspondingly slidably fitted in the limiting groove,
an upper end of the unlocking latch on each side of the movable unlocking piece is provided with a first notch, wherein the first notch is used to make way for a base EMI lug boss set on the base,
a lower end of the unlocking latch on each side of the movable unlocking piece is provided with a second notch, wherein the second notch is used to make way for an upper cover EMI lug boss set on the upper cover, and
three inner EMI springs on each side of a CAGE entrance respectively and independently contact with the base EMI lug boss, the unlocking latch, and the upper cover EMI lug boss one by one.