Patent ID: 7551437

Claim:
A cooling mechanism for a circuit board, comprising: a board having electronic components disposed thereon, a cooling fan disposed in a side-end portion of the board so as to be perpendicular to the board for cooling the board and the electronic components disposed on the board by blowing air, a heat radiation plate located on an air blowing path of the cooling fan on the board, and including an air receiving surface for receiving air blown from the cooling fan, a metal plate attached to one end of the board for preventing a leakage of electromagnetic radiation noise from the electronic components by grounding the board, and a coupling portion for coupling the heat radiation plate and the metal plate, the heat radiation plate being formed by bending a rectangular plate to define at least first and second panels and a bend therebetween, the first panel having an air receiving surface arranged oblique to an axial blowing direction of the cooling fan, and at least one of the electronic components being mounted on the second panel of the heat radiation plate.