| 主权项 |
1. A vacuum interrupter comprising:
a container formed of an insulating material; a fixed portion end plate coupled to an upper portion of the container; a movable portion end plate coupled to a lower end portion of the container and having an opening hole formed in a central portion thereof; a movable electrode inserted into the opening hole and configured to be moved up and down; a bellows having one end installed in the movable portion end plate and the other end installed in the movable electrode within the container such that the interior of the container is maintained in a vacuum state even through the movable electrode moves; a bellows guide formed as a flange type tube body and having a flange portion coupled to the movable portion end plate and a body portion inserted into the opening hole and assist the movable electrode to make a linear movement; and a bellows guide fixing member formed as a tube body and coupled to a lower portion of the movable portion end plate to surround the flange portion, wherein a plurality of first side holes are formed in the flange portion, and a second side hole communicating with the plurality of first side holes is formed in the bellows guide fixing member to allow air inside the bellows to be discharged to the outside. |
