GAS-FILLED DISCHARGER Russian patent published in 2011 - IPC H01J17/02 H01T1/00 

FIELD: electricity.

SUBSTANCE: discharger shell consists of a metal body in the form of a cylindrical sleeve with flanging and an insulator installed in it in the form of a truncated cone with side cylindrical surface in its lower part. On the inner surface of the lower part of the metal body there is a collar that follows the shape of this surface to form a ledge, where there is a base of the lower part of the insulator, the side cylindrical surface of which is connected with the inner surface of the upper part of the collar by a sealing seam. The lower parts of the collar and the metal body are connected to each other by means of, for instance, argon-arc welding, as a result of the fact that on the inner surface of the body at the level of the upper border of insulator connection with the collar there is an additional ledge, and the upper part of the collar higher than the upper border of its connection with the insulator has a bulge protruding beyond the outer surface of the collar above the additional ledge. The collar bulge is equal to the width of the additional ledge and is arranged with rounded edges inverted inside the cavity formed by the body and the insulator.

EFFECT: increased mechanical and electric strength and stability of dynamic voltage of discharger breakthrough, and its agreement with a load at coaxial connection.

1 dwg