US 12,140,157 B1
Fan frame
Kuo-Tung Hsu, Taoyuan (TW); Jen-Bo Huang, Taoyuan (TW); Chao-Fu Yang, Taoyuan (TW); and Yu-Lun Weng, Taoyuan (TW)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by Delta Electronics, Inc., Taoyuan (TW)
Filed on Jun. 29, 2023, as Appl. No. 18/344,119.
Claims priority of application No. 202310529143.0 (CN), filed on May 11, 2023.
Int. Cl. F04D 29/52 (2006.01); F04D 19/00 (2006.01)
CPC F04D 29/522 (2013.01) [F04D 19/002 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fan frame, comprising:
a housing, having an air inlet and an air outlet, wherein the air inlet is on a first side of the housing, and the air outlet is on a second side of the housing;
a shaft seat, disposed at the center of the housing;
at least one curved rib, disposed between the housing and the shaft seat;
a plurality of first ribs, extending through the curved rib and connecting the shaft seat to the housing, wherein the first ribs and the curved rib define a plurality of first holes; and
a plurality of second ribs, connecting the curved rib to the shaft seat, wherein the second ribs and the curved rib define a plurality of second holes, wherein the first and second holes form an airflow area of the fan frame;
wherein air flows through the air inlet along an air-inlet direction, and air is discharged from the fan frame through the air outlet along an air-outlet direction that is the same as the air-inlet direction.