US 12,453,040 B2
Fan module
Kuo-Tung Hsu, Taoyuan (TW); Wen-Chun Hsu, Taoyuan (TW); Chao-Fu Yang, Taoyuan (TW); and Shuo-Sheng Hsu, Taoyuan (TW)
Assigned to DELTA ELECTRONICS INC., Taoyuan (TW)
Filed by Delta Electronics, Inc., Taoyuan (TW)
Filed on Jun. 12, 2023, as Appl. No. 18/333,257.
Claims priority of application No. 202223034253.X (CN), filed on Nov. 15, 2022.
Prior Publication US 2024/0164051 A1, May 16, 2024
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20172 (2013.01) 14 Claims
OG exemplary drawing
 
1. A fan module, adapted to be disposed on a mainboard and to be connected to a mainboard connection port of the mainboard, comprising:
a base, comprising a mounting shaft and a base opening, wherein the mounting shaft has an axis;
a stator unit, wherein the mounting shaft is telescoped in the stator unit;
a circuit board, coupled to the stator unit, wherein the circuit board comprises a circuit board connection port facing to the base opening, and the mainboard connection port is coupled to the circuit board connection port through via the base opening without a cable;
a first restriction structure, restricting the circuit board, wherein the first restriction structure is adjacent to one side of the base opening, the first restriction structure is arranged on a first straight line, and the first restriction structure is disposed a first distance away from the axis; and
a second restriction structure, restricting the circuit board, wherein the second restriction structure is adjacent to another side of the base opening, the second restriction structure is arranged on a second straight line, the second restriction structure is disposed a second distance away from the axis, and an included angle between the first straight line and the second straight line is less than 180 degrees and greater than 30 degrees.