| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that, in the prior art, an increase in temperature of an element is suppressed by using an air flow caused by natural convection, but a means for suppressing an increase in temperature of the element which depends on natural convection inside a control device takes time to suppress an increase in temperature of the element, and convention hardly occurs in a high-temperature operation with a small difference in temperature. <P>SOLUTION: A device for controlling an actuator which is attached integrally to a housing of the actuator is equipped with a control circuit board on which a heating element is mounted, a case for storing the control circuit board inside, an opening formed between the housing and the case to electrically connect the actuator and the control circuit board, and a breathing hole formed in a portion of the case within a predetermined range from the element to allow gases to go in and out of the case. <P>COPYRIGHT: (C)2010,JPO&INPIT |
