| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a control panel capable of efficiently cooling the heating of a switching element through which a large current flows. <P>SOLUTION: This control panel is provided with a unit guide 25 whose cross-sectional area is shaped like a U character, which is provided with a front barrier 25D and upper and lower edge guides 25C, and which is mounted on a control panel casing side board 21; a side parting board 26 whose front part is provided with a front opening 26F for parting the unit guide 25 into an accessory vending zone 104 and a main vending zone 103 in which heat sinks 8 and 9 are housed; a front board 27C overlapped with the front parting barrier 25D; and vertical rails 27B engaged with the guide 25C. Also, radiating fins 8B and 9B are faced horizontally, and the heat sinks 8 and 9 are mounted through an insulating frame 28. A box-shaped dust-preventing vending zone is formed in the control panel of the heat sinks 8 and 9 and a unit panel 27 inserted from the front part of the control panel to the guide 25C, and a cooling fan 16 for blasting toward the central parts of base plates 8A and 9A is set at the central part of the backward and forward direction of the side parting board 26. <P>COPYRIGHT: (C)2004,JPO |
