| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent an abnormal temperature rise at a pinpoint of an external surface of a case in a mobile type electronic device where electronic components which generate heat at the time of driving are provided in the case.SOLUTION: Electronic components 4 which generate heat at the time of driving are provided in cases 1, 2. A heat diffusion member 6 is fixed to the inner surface of the first case 1 in the lower part of the electronic component 4. The heat diffusion member 6 is basically made of a heat shielding sheet 9 smaller than heat diffusion sheets 7, 8 in size which is interposed between the heat diffusion sheets 7, 8. The size of the heat shielding sheet 9 is a little larger than the size of the electronic component 4. Thereby, an abnormal temperature rise can be prevented at a pinpoint of an external surface of the first case 1.</p> |
