| 摘要 |
PURPOSE:To immediately cape with a change in installation without lowering the cooling capacity by commonly using necessary members for installation on the outside and inside of a board. CONSTITUTION:A plurality of cooling fins 4 elongated in one direction are firmly fixed to the bottom plate 12 of the enclosure of a control section. An installing tool 17 is constituted of a main body section 17a which is elongated in the height direction of the fins 4 and has an L-shaped cross section, installing plate 17b which is provided on the end face of the section 17a perpendicularly to the height direction of the fins 4, and tapped holes 17c bored through the plate 17b. When a pair of installing tools 17 arranged in the direction of the fins 4 are united in one body with transversal plates 17e, the tools 17 can be fixed to the bottom plate 12. Screws 15 which are screwed in the tools 17 through the bottom plate 12 are used as the fitting means of the tools 17 to the four corners of the bottom plate 12. The screws 15 can fix the tools 17 in the normal direction for inside-board installation and in the opposite direction for outside-board installation. |
