Patent Number: 6,166,904

Title: Heat generating element cooling device

Abstract: A heat generating cooling device including a heat sink with a plurality of fins and a cooling fan unit mounted on and above the fins and having a motor. At least one auxiliary blade is provided on the bottom surface of the motor and extends in toward the thickness direction of the heat sink. The fins can be formed short to provide blade clearance.

Inventors: Kitahara; Takashi (Ishikawa, JP), Shimanuki; Tadayoshi (Ishikawa, JP)

Assignee: PFU Limited

International Classification: H01L 23/34 (20060101); H01L 23/427 (20060101); H01L 23/467 (20060101); H05K 7/20 (20060101); H05K 007/20 ()

Expiration Date: 12/26/2017