| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve a wiring structure so that the cooling air to be blasted in a panel is intensively introduced to a circuit component, to do much for a filter circuit part housed in the panel of a power conversion apparatus, by utilizing a plate-like bar conductor which is routed between circuit components (for example, capacitor), for wiring and connection. <P>SOLUTION: In the power conversion apparatus, a filter circuit part 13 including a capacitor as a circuit component is combined with a converter and inverter circuit unit, to constitute one unit, which is housed in a panel. The cooling air is blasted into the panel for wind-cooling the circuit component of each unit. In the filter circuit part 13, a capacitor (circuit component) 14 connected to U, V, W phases of a main circuit is arrayed side by side on a unit frame 6a, and plate-like copper bar conductors 15, 16, 17 are routed between the capacitors 14, for wiring and connection. The left and right side edges of the copper bar conductors 16 and 17 are bent in L-shape to form a wind tunnel shape. The cooling air that is blasted into the panel through the wind tunnel shape is intensively guided toward the capacitor 14. <P>COPYRIGHT: (C)2012,JPO&INPIT |
