| 摘要 |
FIELD: electricity. ^ SUBSTANCE: movable contact of a movable contact element attached to one end of a movable shaft is put in contact with a fixed contact and is separated from the fixed contact installed in a ceramic body by reciprocal movement with a movable shaft, the other end of which is attached to a movable steel core, making reciprocal movement in a cylinder with a closed end on the basis of excitation and demagnetisation of an electromagnet unit installed on the outer periphery of a cylinder with the closed end. In particular, a circular rib protrudes above an upper surface of a circular flange so that a section soldered with a braze and formed on the lower end surface of a ceramic body is closed at the inner side with a circular rib. ^ EFFECT: creation of a sealed contact device, in which sealing efficiency does not reduce, even when an arc is generated. ^ 8 cl, 10 dwg |
