Abstract: In a heat conducting unit, a heat conducting member composed of a material with good heat conductivity shaped in correspondence with the shape of a heat path is contained in a container made of a flexible sheet having a given thickness. The heat conducting member contained in the container connects at least two parts at different temperatures to form the heat path for efficiently transferring heat generated in a higher-temperature part to a lower-temperature part. Heat is dissipated away from the lower-temperature part through the heat path to cool the higher-temperature part.