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1 个月
新风光(青岛)交通科技发明水冷逆变单元专利,确保IGBT模块高效 ...
根据专利摘要,该装置结构包括单元壳体、水冷散热器、IGBT模块、滤波电容、单元控制板、输入和输出端子。而其中,水冷散热器设有进水和出水 ...
11 天
功率器件热设计基础(七)——热等效模型
有了热阻热容的概念,自然就会想到在导热材料串并联时,就可以用阻容网络来描述。一个带铜基板的模块有7层材料构成,各层都有一定的热阻和热容,哪怕是散热器,其本身也有热阻和热容。整个散热通路还包括导热脂、散热器和环境。不同时间尺度下的各层温度如下图,温度的纹波是由热容决定的。
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