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    • 13. 发明专利
    • STRUCTURE FOR COOLING ELECTRIC EQUIPMENT FOR VEHICLE
    • JPH04193670A
    • 1992-07-13
    • JP32283390
    • 1990-11-28
    • HITACHI LTD
    • ICHIGE TSUTOMU
    • B61C17/00
    • PURPOSE:To make unnecessary a blower for cooling electric equipment and also simplify roof structure by taking in cooling wind from the blower through the lower portion of each equipment such as a flow straightener and an inverter, and discharging the air from the upper portion of each equipment into a vehicle room, and discharging the air outside of the body of the vehicle by means of the blower. CONSTITUTION:A blower 1 for blowing cold air to a main electric motor 5, a transformer 4, a flow straightener 3, an inverter 2, electric equipment such as an electrically- controlled resistor 7, and a filter 6 are disposed in the respective portions of the body 8 of a vehicle. An air duct 9 for guiding cooling wind to a main electric motor 5, the inverter 2 and the flow straightener 3 is provided on the discharge side of the blower 1 in such manner as diverging from the lower portion of the blower 1. The electrically-controlled resistor 7 is provided with a built-in blower and a resistor duct 12 is stuck to the side face of the body 8 between the respective side faces of the electrically-controlled resistor 7 and the body 8, the duct 12 serving as an air passage for taking in cold air from the outside. Air discharged into the body from above after the electric components are cooled is partially sucked by using the blower 4a of the transformer 4 and is discharged onto the roof of the vehicle. Extra air is discharged to the outside from the opening 12a of the resistor duct.