CRYOGENIC ELECTRICAL FEED-THROUGH

摘要

A cryogenic electrical power feed-through assembly includes a contact header assembly. The contact header assembly includes a feed-through body forming a feed-through body cavity disposed therethrough extending between a first opening end to a second opening end. A first contactor plate assembly is disposed at and hermetically seals the first opening end of the feed-through body with a first electron beam weld formed between the first contactor plate and the first opening end. A second contactor plate assembly is disposed at and hermetically seals the second opening end of the feed-through body with a second electron beam weld formed between the second contactor plate and the second opening end. Each contactor plate assembly includes a contactor plate, a plurality of insulative bushings hermetically sealed to and extending through the contactor plate, and a plurality of contact pins hermetically sealed to and extending through the plurality of insulative bushings.

主权项

1. A contact header assembly configured to be installed as part of a cryogenic electrical power feed-through assembly, the contact header assembly comprising:
a) a feed-through body forming a feed-through body cavity disposed therethrough extending between a first opening end to a second opening end; b) a first contactor plate assembly comprising:
i) a first contactor plate;ii) a first plurality of insulative bushings hermetically sealed to and extending through the first contactor plate;iii) a first plurality of contact pins hermetically sealed to and extending through the first plurality of insulative bushings, wherein the first plurality of contact pins are electrically conductive and in non-conductive relation to the first contactor plate and feed-through body; c) a second contactor plate assembly comprising:
i) a second contactor plate;ii) a second plurality of insulative bushings hermetically sealed to and extending through the second contactor plate;iii) a second plurality of contact pins hermetically sealed to and extending through the second plurality of insulative bushings, wherein the second plurality of contact pins are electrically conductive and in non-conductive relation to the second contactor plate; d) wherein the first contactor plate assembly is disposed at and hermetically seals the first opening end of the feed-through body with a first electron beam weld formed between the first contactor plate and the first opening end; and e) wherein the second contactor plate assembly is disposed at and hermetically seals the second opening end of the feed-through body with a second electron beam weld formed between the second contactor plate and the second opening end.