US 12,320,362 B2
Fan module and electronic device
Chih-Yu Yeh, New Taipei (TW)
Assigned to Nanning FuLian FuGui Precision Industrial Co., Ltd., Nanning (CN)
Filed by Nanning FuLian FuGui Precision Industrial Co., Ltd., Nanning (CN)
Filed on May 24, 2023, as Appl. No. 18/201,302.
Prior Publication US 2024/0392795 A1, Nov. 28, 2024
Int. Cl. F04D 25/14 (2006.01); F04D 19/00 (2006.01); F04D 29/64 (2006.01); H05K 7/20 (2006.01)
CPC F04D 25/14 (2013.01) [F04D 19/002 (2013.01); F04D 29/646 (2013.01); H05K 7/20181 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A fan module, comprising:
a mounting bracket comprising a base, a first side wall, and a second side wall, the first side wall and the second side wall are disposed at opposite ends of the base;
a fan detachably installed in the mounting bracket, the fan is located between the first side wall and the second side wall; and
an anti-backflow device detachably installed in the mounting bracket, the anti-backflow device is located between the fan and the first side wall, and the anti-backflow device comprising a louver assembly, the louver assembly comprises a frame and multiple blades rotatably mounted to the frame, the frame has an air inlet side and an air outlet side opposite to the air inlet side for providing an air flow channel for air passing through;
wherein when the anti-backflow device is installed in the mounting bracket in a first state, the air inlet side of the frame faces the first side wall, and the fan is used to generate a first airflow along a direction from the first side wall to the second side wall;
when the anti-backflow device is installed in the mounting bracket in a second state, the air inlet side of the frame faces the second side wall, and the fan is used to generate a second airflow along a direction from the second side wall to the first side wall;
the multiple blades rotate to open towards the air outlet side to form an airflow passage that allows the first/second airflow to pass through, the multiple blades rotate to droop to close the airflow passage when the fan stops operating; wherein the second side wall is provided with a guiding slope forming an acute angle with a plane where the base is located;
two guiding plates are provided on the second side wall, which are respectively set at two opposite ends of the second side wall and inclined towards each other; a guiding groove is defined on a side of the base away from the fan, the guiding groove is located at an end of the base near the second side wall and extends towards the first side wall; and the guiding slope, guiding plates, and guiding groove are configured for guiding the fan module to be inserted in position.