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关于户外直流开关电源中采用热交换方式的介绍

摘要：随着通讯网络的建设和发展，解决网络盲区的覆盖，减少投资成本，涌现出大量的户外基站和户外型的通讯设备、供电设备，这些远程通讯设备处于恶劣的外部环境下，它们遭受太阳的热辐射和设备本身发热的影响，消除这两种热源的影响对电子设备的可靠工作至关重要，本文着重介绍了户外电源的恶劣环境，对设备的影响，机箱设计、散热计算、主动散热、被动散热等技术，热交换器的原理，户外电源的结构，采用热交换器方式的优势等内容。 叙词：户外电源，散热，IPXX，热交换器、温控 Abstract：Along with the construction and development of telecommunication networks, more and more outdoor base station systems, outdoor communication and power supply equipments were applied for the coverage of networks vacancy and saving investment. Because these remote communication equipment work in serious outdoor environment, the radiant heat of sunshine and the heat of equipment operation will badly affect the reliability of electronic equipment. It is very significant for the outdoor equipment to avoid these two heat sources. The article introduces the serious operating environment of outdoor power supply system and the effect of environment. To discusses the design of combined rack, the calculation of heat radiation, the initiative heat radiation, the passive heat radiation, the theory and advantage of heat exchanger, the configuration of outdoor power supply system etc. Keyword：Outdoor power supply system, Heat radiation, IPXX, Heat exchanger, Temperature control

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