Abstract
From the background information supplied by the inventors, news correspondents o btained the followingquote: “BACKGROUND ART“Conventionally, control devices, which accommodate therein a heating element, s uch as a servoamplifier for controlling a servo motor, are known. For example, Patent Document 1 discloses a controllerfor an industrial robot device. The con troller is provided with a cabinet with drawers. A drive providedwith a power s ource unit is disposed inside the drawer. The controller includes a ventilation duct whichpenetrates inside of the drawer, and a fan which forcibly generates a flow of air inside the ventilation duct.”
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