| 摘要 |
PROBLEM TO BE SOLVED: To provide a cooling structure of an electronic component in a control board in which replacing work of a cooling fan can be carried out easily in safety. SOLUTION: The cooling structure of an electronic component in a control board, where an electronic component is disposed on a heat dissipator fixed to a fixing plate in the control board and a cooling fan for supply air to the electronic component is fixed to the heat dissipator, is provided with a long nut member 14 being screwed over a stud bolt 13 of the heat dissipator fitted in a first fixing through hole 11 made at a corner of one side face of a cooling fan 4, and a hand turn fixing screw 15 being screwed over the long nut member 14 through a second fixing through hole 12 made at a corner of the other side face of the cooling fan 4. |
