| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a housing structure of an inverter unit which secures a housing strength while controlling a cost increase, prevents a resonance, and does not give a bad influence on built-in parts of an electrolytic capacitor and a cooling fin. <P>SOLUTION: The inverter unit is provided with a cooling fan supporting frame 17 comprised of gate-shaped sheet metal members for supporting a cooling fan unit and a capacitor supporting frame 22 comprised of gate-shaped sheet metal members for supporting the electrolytic capacitor, and it fixes these cooling fan supporting frame and capacitor supporting frame to one end and the other end of a longitudinal direction to the cooling fin 21 in a state that the gate shape faces a width direction. A pair of sheet metal beams 12 of C channel shape spaced apart in a width direction are fixed to the cooling fin and the capacitor supporting frame so as to perpendicularly cross the gate shape of the cooling fan supporting frame and the capacitor supporting frame. <P>COPYRIGHT: (C)2010,JPO&INPIT |
