| 摘要 |
<p>PURPOSE:To effectively cool with simple, lightweight structure by covering the outside of a control device with a cover leaving a space, providing the upper part of an air layer, formed at the side part and lower part of the control device, with a means for making heat in the air layer escape, and making the control device black and the cover silver. CONSTITUTION:A control device 4 is fitted to the lower face of a body frame 2 through a heat pipe 5, and a cover 6 for covering the control device 4 is fitted to the lower face of the body frame 2 so as to form an air layer 7 at the side part and lower part of the control device 4. The cover 6 is formed of material such as stainless steel with the silver surface and low heat conductivity, and radiant heat (external heat) 10 from piping (monitored body) 21 is reflected downward so as not to be easily transmitted to the interior. Black coating is applied to the case surface of the control device 4. As a result, internal heat is rapidly radiated into the air layer 7, conducted upward in the air layer 7 and carried outside by the heat pipe 5 so as to be eliminated.</p> |
