【应用】硬度仅shoreoo 25的导热垫片MCS31可为车载TBOX解决因装配公差问题产生的热设计问题
车载TBOX即车载智能终端,其作用就是通过互联网来监控和控制车子。功能包括数据采集、远程诊断、远程控制、车辆通信、紧急救援、防盗监控等等。
车载T-BOX示意图
随着现在汽车智能化的发展,更多的功能被赋予给车载TBOX,导致车载TBOX的处理器的运行功耗越来越大,发热量也是越来越大。
车载TBOX的结构往往是个正方体盒装结构,内部装有线路板,由于加工的精度和装配工艺问题,会导致线路板上的处理器和外壳之间会有一定的装配公差,由于此公差的存在,对于导热垫片的厚度选择就要慎重,因为当你选择偏厚的垫片时,遇到公差偏小的状况会出现压缩不下去,不易装配的问题且还容易损坏垫片,当你选择偏薄的垫片时,遇到公差偏大的状况,会出现接触不到外壳,厚度不够的问题。
PARKER CHOMERICS THERM-A-GAP™ MCS31导热垫片,硬度仅有shoreoo 25,在0.45MPA的压力下,压缩率为50%,在T-BOX上应用时可以按照最大公差选择相应的厚度即可,即使该导热垫片在遇到最小公差时,也能轻松装配,不用担心压坏问题。
Parker Chomerics THERM-A-GAP™ MCS31参数如下:
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【经验】导热垫片老化变硬问题怎么解决?
导热垫片使用广泛,是最常用的导热界面材料,但导热垫片也存在一些问题,其中老化变硬问题比较突出,本文讲解了老化变硬问题产生的原因,危害及解决方法,给使用和开发导热垫片提供思路,并推荐固美丽的导热垫片,如MCS30、TPS55、TPS60。
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使用FloTHERM和Smart CFD软件,提供前期热仿真模拟、结构设计调整建议、中期样品测试和后期生产供应的一站式服务,热仿真技术团队专业指导。
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