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Liquid Cooled Cold Plates for Industrial High-Power Electronic Devices-Thermal Design and Manufacturing Considerations

机译:工业大功率电子设备的液冷冷板-热设计和制造注意事项

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摘要

Electronics cooling research has been largely focused on high heat flux removal from computer chips in the recent years. However, the equally important field of high-power electronic devices has been experiencing a major paradigm shift from air cooling to liquid cooling over the last decade. For example, multiple 250-W insulated-gate bipolar transistors used in a power drive for a 7000-HP motor used in pumping or in locomotive traction devices would not be sufficiently cooled with air-cooling techniques. Another example is a "hockey puck" SCR of 63 mm diameter used to drive an electric motor that could dissipate over 1500 W and is difficult to cool with air because of the shape of the device. Other devices include radio-frequency generators, industrial battery chargers, printing press thermal and humidity control equipment, traction devices, mining devices, crude oil extraction equipment, magnetic resonance imaging, and railroad engines. This article classifies the cold plates into four types: formed tube cold plate, deep drilled cold plate, machined channel cold plate, and pocketed folded-fin cold plate. The article further discusses selection of cold plate type and channel configuration, and some of the relevant manufacturing issues. It is recommended that the thermal designer be involved in the early stages during the electrical design and layout of the devices.
机译:近年来,电子散热研究主要集中在从计算机芯片中去除高热通量。然而,在过去的十年中,大功率电子设备的同等重要的领域也经历了从空气冷却到液体冷却的重大转变。例如,在泵或机车牵引装置中使用的7000-HP电动机的电源驱动器中使用的多个250-W绝缘栅双极晶体管无法通过空气冷却技术充分冷却。另一个示例是直径为63 mm的“冰球” SCR,该SCR用于驱动电动机,该电动机的功率可能超过1500 W,并且由于设备的形状而难以用空气冷却。其他设备包括射频发生器,工业电池充电器,印刷机热湿控制设备,牵引设备,采矿设备,原油提取设备,磁共振成像和铁路发动机。本文将冷板分为四种类型:成型管冷板,深钻孔冷板,机加工通道冷板和袋装折翅式冷板。本文进一步讨论了冷板类型和通道配置的选择,以及一些相关的制造问题。建议热设计人员参与设备的电气设计和布局的早期阶段。

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