| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power source circuit capable of suppressing the formation of a closed circuit containing a power source when a service plug is pulled out. <P>SOLUTION: The power source circuit (100) includes: a power source (10) connected to cooling water piping (12) through which cooling water flows; a relay (20) connected to the power source in series; and a breaker (30) for cutting off the output of the power source. The breaker is connected to the power source on the opposite side to the cooling water piping. Since the breaker is connected to the power source on the opposite side to the cooling water piping, even when the relay is welded, the formation of a closed circuit including the cooling water piping and the power source is prevented. <P>COPYRIGHT: (C)2009,JPO&INPIT |
