| 摘要 |
PROBLEM TO BE SOLVED: To implement a low-inductance resistor by omitting the space for arranging it, facilitating its manufacture and improving its cooling performance. SOLUTION: A resistor 11 is formed by connecting striplike components 11' each folded in a wavelike form. Thus, by changing the dimensions of the resistor 11 both lengthwise and widthwise, the resistance of the resistor 11 can be selected as desired and the resistor 11 can be downsized. Therefore, the space for arranging the resistor 11 can be reduced. Further, since the resistor 11 is cooled by causing ventilating means to blow air in a single direction upward from below, fluidity in ventilation can be improved compared with a conventional example in which cooling passage is bent. Therefore, cooling performance can be improved. |
