对汽车挡风玻璃在夜间结霜的问题做了传热分析,提出采用热镜防止其结霜的方法。文中依据沈阳、北京、合肥、重庆、福州五城市1987年的气象资料,计算了普通车窗和热镜车窗的结霜情况。结果表明:采用ε≤0.2的热镜玻璃后,北方及华东地区经常出现的汽车挡风玻璃结霜问题可完全得到解决。 A heat transfer analysis was performed on the frosting of the windshield of a car at night, and a method of using a hot mirror to prevent frost formation was proposed. Based on the 1987 meteorological data of five cities in Shenyang, Beijing, Hefei, Chongqing and Fuzhou, the paper calculated the frost conditions of ordinary windows and hot mirror windows. The results show that the frosting problem of the windshield of automobiles often occurs in the north and east China after the hot mirror glass with ε ≤ 0.2 can be completely resolved.