Patent ID: 7004233
Filing Date: 2006-02-28
Classification: H05K

Abstract:
1. An electrical equipment cooling device, the device comprising: an intake duct having a cooling air intake port; an exhaust duct having a cooling air exhaust port; an equipment box disposed between the intake port and the exhaust port for guiding cooling air introduced from the intake duct to the exhaust duct along with an air flow; a fan for introducing the cooling air from said cooling air intake port to the cooling air exhaust port, said fan being disposed at the cooling air exhaust port, on an opposite side of the exhaust duct from the air intake port; and a valve for opening and closing said intake duct, said valve being disposed within the intake duct; wherein said valve comprises an elastic material, and said valve is opened to admit a flow of the cooling air into said intake duct during operation of said fan.