Hermetic terminal with electrically insulating anti-tracking cap.

摘要

A hermetic terminal (42) for carrying electric current into the housing (12) of a hermetic compressor (10), including a cup-shaped metallic body member (48) having a plurality of metallic conductor pins (64) extending therethrough which are electrically insulated from the body member by hermetic glass seals (68). The body member includes a closed end (50) having an inwardly facing contoured end surface (76), to which a correspondingly contoured contacting surface (74) of an electrically insulating cap member (72) is secured by means of a uniform layer of electrically insulating bonding material (80) therebetween. The pins extend through passages (78) in the cap member, whereby the cap member defines an oversurface distance between the pins and the body member. A portion (90) of the oversurface distance is protected from contaminants within the compressor housing by means of an annular gap (88) between the outer periphery (84) of the cap member and the sidewall (54) of the body member, and by respective annular gaps (92) between the pins and corresponding passages in the cap member.