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    • 3. 发明专利
    • Enclosed switch-board
    • 附带开关板
    • JP2005198427A
    • 2005-07-21
    • JP2004002361
    • 2004-01-07
    • Mitsubishi Electric Corp三菱電機株式会社
    • OSHIRO TAKASHI
    • H02B1/56H02B5/00
    • H02B1/565H02B1/50
    • PROBLEM TO BE SOLVED: To miniaturize an enclosed switch-board, by improving cooling efficiency for cooling fins of an oil-filled transformer and the like. SOLUTION: This enclosed switch-board is provided with an enclosed switch-board casing 1 having a ventilating opening 5 for exhaust on a top portion, a device 2 that, stored in the casing 1, has the cooling fins 3, ventilating ducts 8 that, having intakes 13 at the bottom end and an exhaust opening 8a communicated to the ventilating opening 5 at the upper portion, is mounted on the device 2 so as to surround the cooling fins 3. The intakes 13 of the ventilating ducts 8 are extended up to a cable pit 11, which is below the installation surface of the enclosed switch-board. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:通过提高充油变压器的散热片的冷却效率等来使封闭开关板小型化。

      解决方案:该封闭开关板设置有封闭的开关板外壳1,其具有用于顶部排气的通风口5,存储在壳体1中的具有散热片3的通风设备2的设备2 在底部具有进气口13和在上部与通风口5连通的排气口8a的管道8安装在装置2上,以便围绕冷却翅片3.通风管道8的进气口13 延伸到电缆坑11,该电缆坑11位于封闭开关板的安装表面下方。 版权所有(C)2005,JPO&NCIPI