| 摘要 |
<p>PURPOSE:To make the reactor small and light and easily manufacture the same by a method wherein the reactor of a chopper control device is formed by winding wirings in a cavity for cooling semiconductor elements. CONSTITUTION:A wind channel 11 through which air for cooling passes is formed inside the chopper control device 10, and on one side of the wind channel is arranged a blower 12 feeding air for cooling. In addition, a semiconductor stack 13 of SCR etc. is disposed in the wind channel 11. On the other side of the wind channel 11, the reactor 15 formed by winding wires for ordinary wiring is fixedly provided on the inner periphery of the cavity 11 in the use of a wire cleat 16. In such a way, the reactor 15 is made small and light and also easily manufactured.</p> |
