| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a contact device that is configured in such a manner that a movable core is moved in a direction contacting a fixed core even after movable contacts come into contact with fixed contacts and that extinguishes arc between the respective contacts in a short period of time and also reduces negative effect of leakage flux on external environment. <P>SOLUTION: In a contact device A1, an electromagnet device 8 moves a movable core 8d in a direction contacting a fixed core 8c, and, after movable contacts 5a come into contact with fixed contacts 3a, the movable core 8d is moved in the direction contacting the fixed core 8c. A plurality of permanent magnets 11 are arranged so as to sandwich a pair of fixed contacts 3a therebetween from right and left sides. An E-shaped yoke 12 is provided that has two side legs on which respective permanent magnets 11 are arranged. <P>COPYRIGHT: (C)2013,JPO&INPIT |
