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发明授权
CN101223838B 用于冷却电子部件的风机冷却单元 失效 - 权利终止

用于冷却电子部件的风机冷却单元
摘要：
一种用来冷却诸如空气冷却远程通讯基站的电子部件的风机冷却单元(100)，其包括保护性覆盖器，该覆盖器用于容纳电子部件的外壳(8)的至少空气入口开口(11)。保护性覆盖器(1)具有框架(2)，复合过滤介质(3)安装在框架上以形成气密配合。复合过滤介质(3)包括薄膜过滤层(20)和至少一个深度过滤介质层(18)，薄膜过滤层(20)具有诸如膨胀聚四氟乙烯(ePTFE)的多孔聚合物隔膜，而深度过滤介质层(18)设置在薄膜过滤层(20)的上游侧上。深度过滤介质层包括带有静电荷的纤维。ePTFE薄膜较佳地由PTFE均聚物和改性的PTFE聚合物的混合物制成。
摘要（英）：

A fan cooling unit (10) for cooling electronic components, such as for an air-cooled telecommunications base station, comprises a protective covering for at least the air inlet opening (11) of a casing (8) in which the electronic components are housed. The protective covering (1) has a frame (2) into which a composite filter media (3) is mounted so as to create an air-tight fit. The composite filter media (3) comprises a membrane filtration layer (20) with a porous polymeric membrane, such as expanded polytetrafluoroethylene (ePTFE), and at least one depth filtration layer (18) disposed on anupstream side of the membrane filtration layer (20). The depth filtration media layer comprises fibers having an electrostatic charge. The ePTFE membrane is preferably made from a blend of a PTFE homopolymer and a modified PTFE polymer.

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