| 摘要 |
<P>PROBLEM TO BE SOLVED: To accelerate heat dissipation from a damping resistor, and to improve the usage efficiency of the damping resistor in braking. <P>SOLUTION: This inverter device 1 comprises a cooling fin body 3, on one surface of which electric components such as a main circuit, a driving circuit, a control circuit are mounted and a plurality of fins 3a are arranged on the other. Also, a cooling fan 4 is mounted to cool the inverter device 1 by blowing a cooling wind through the fins 3a. In this inverter device 1, an air guide plate 51 is provided at the top end side of the fins 3a of the cooling fin 3, and a braking resistor 71 is mounted in contact with the plate 51 on the surface opposite to the fin 3a. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
