COOLING DEVICE FOR ELECTRONIC APPARATUS, ELECTRONIC APPARATUS EQUIPPED WITH THE SAME, AND COOLING METHOD FOR ELECTRONIC APPARATUS

PROBLEM TO BE SOLVED: To enable a wide range inside a housing to be efficiently cooled in a simple and inexpensive configuration.SOLUTION: A cooling device 20 includes: a cooling fan 21 which is housed inside a housing 2 of an electronic apparatus and cools electronic components 25 to 29; and a cooling air guide revolving body 39 which is pivotally supported inside the housing 2 in a rotatable manner, which is revolved by capturing excess cooling air (CA2) being at least a part of cooling air generated by the cooling fan 21 to obtain a rotational torque, and which guides the captured excess cooling air (CA2) to a predetermined range inside the housing 2.SELECTED DRAWING: Figure 4 【課題】簡素で安価な構成により、筐体の内部の広範囲を効率良く冷却可能にする。【解決手段】冷却装置２０は、電子機器の筐体２の内部に収容された電子部品２５〜２９を冷却する冷却ファン２１と、筐体２の内部に回転自在に軸支されて冷却ファン２１により生成される冷却空気の少なくとも一部である余剰冷却空気（ＣＡ２）を捕捉することにより回転トルクを得て旋回し、捕捉した余剰冷却空気（ＣＡ２）を筐体２の内部の所定の範囲に誘導する冷却空気誘導旋回体３９とを備えている。【選択図】図４