MOUNTING MECHANISM OF HEAT GENERATION ELECTRIC PARTS

PURPOSE: To obtain a mounting mechanism of heat generation electric parts which has fewer parts, does not require the use of tools, achieve operation easily and quickly, and can be easily attached and detached. CONSTITUTION: By inserting one edge of a heat generation electrical part retention tool 5 into a hole 6 with a spiral groove 7 with an equal pitch of a heat sink 1 and engaging an engagement part 8 provided at a heat generation electrical part retention tool 5 to the spiral groove 7, the heat generation electrical part retention tool 5 can be fixed and a heat generation electrical part 2 is pressed to the heat sink 1 for retention by a heat generation electrical part pressing part 10 with the elasticity of the heat generation electrical part retention tool 5. Therefore, by simply inserting the heat generation electrical part retention tool into holes with the spiral grooves at an equal pitch being provided at the heat sink, the heat generation electric parts can be simply mounted.