US 12,460,654 B2
Fan with electromagnetic radiation shielding structure
Feng Liu, Shenzhen (CN); Hu Zhang, Shenzhen (CN); and Guang-Dong Liu, Shenzhen (CN)
Assigned to ASIA VITAL COMPONENTS (CHINA) CO., LTD., Shenzhen (CN)
Filed by ASIA VITAL COMPONENTS (CHINA) CO., LTD., Shenzhen (CN)
Filed on Feb. 20, 2024, as Appl. No. 18/581,578.
Claims priority of application No. 113103583 (TW), filed on Jan. 30, 2024.
Prior Publication US 2025/0243867 A1, Jul. 31, 2025
Int. Cl. F04D 25/06 (2006.01); F04D 25/08 (2006.01); H05K 9/00 (2006.01)
CPC F04D 25/0606 (2013.01) [F04D 25/0613 (2013.01); F04D 25/0646 (2013.01); F04D 25/08 (2013.01); H05K 9/0009 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A fan with electromagnetic radiation shielding structure comprising:
a fan impeller including a metal hub, a plurality of blades circumferentially spaced on an outer surface of the metal hub, and a magnetic element provided on an inner surface of the metal hub;
a shaft seat provided at a central area thereof with an upward projected shaft barrel, which is rotatably connected to the fan impeller;
a stator structure externally fitted around the shaft seat; and
a metal carrier configured as a separate plate-like member and provided on the shaft seat and the metal carrier having a continuous peripheral edge extended upward to form a sidewall and define an open-topped receiving space for carrying and receiving the stator structure therein; the metal hub and the metal carrier together defining a shielding space in between them, such that the stator structure is located in the shielding space and is isolated from outer environment to avoid electromagnetic radiation produced by the stator structure from leaking out of the fan.