| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure capable of cooling locally a heat generating source of an electronic unit. SOLUTION: In a cooling structure, an air layer 6 is formed between a peripheral wall 3 outside an electronic unit box and a peripheral wall 5 inside it, and an air supply port 7 and a discharge port 9 are provided in the peripheral wall 3, and an electronic unit 18 having a heat generating source 11 is provided in the peripheral wall 5, and the electronic unit is cooled by a cooled air 8, and a projecting part 13 is provided on an inner wall face of the peripheral wall 3 counter to the heat generating source, and a narrow part 14 of an air layer is formed between the projecting part and a heat source location of the peripheral wall 5. The projecting pant 13 is extended in the air layer 6 from a bottom part of the peripheral wall 3 to the upper part in a height direction, and a guide inclined face 13a for blowing the cooled air 8 toward the heat generating source 11 is formed in the projecting part 13. |
