Patent ID: 8188818
Filing Date: 2012-05-29
Classification: H01H

Abstract:
1. A relay, comprising: a solenoid, comprising: a spool; a coil wound on an outer periphery of the spool; and a pair of power connecting terminals provided at one end of the spool and configured for providing a current to the spool; a hermitically sealed, insulating gas-filled chamber coupled to an upper portion of the spool, the chamber comprising: an insulation member mounted at an upper end of the chamber and configured for insulating the chamber and the stationary terminals; a movable unit, comprising: a restoring spring coupled at one end thereof to a lower end of the shaft and supportively fixed at the other end to a lower surface of the cylinder, the restoring spring configured for pulling the shaft toward the lower surface of the cylinder; and an insulated sliding guide provided inside the chamber and surrounding a perimeter of the movable terminal, the insulated sliding guide configured for guiding the movable unit as it is moved by the solenoid and the restoring spring.