Servo amplifier with heat sink for heat dissipation having two sets of heat dissipation fins orthogonal to each other

摘要

A servo amplifier having a heat sink of low (assembly) cost, with high heat-releasing capacity and reliability, capable of being safely used under high temperature. The heat sink has a base plate, a heat-transferring plate thermally connected to the base plate, a plurality of first heat-releasing fins extending from the base plate, and a plurality of second heat-releasing fins extending from the heat-transferring plate. The first heat-releasing fins are arranged so as to extend from a second major surface of the base plate in the Z-direction, and the second heat-releasing fins are arranged on a region of the both surfaces of the heat-transferring plate where is separated from the second major surface by at least the height of the first heat-releasing fins, the second heat-releasing fins extending generally parallel to second major surface.