Switching element cast into an insulating compound and method of

Details Switching element cast into an insulating compound and method of Switching element cast into an insulating compound and method of

1997-10-14

1999-04-06

Friedhofer, Michael A.

Electricity: circuit makers and breakers

Electric switch details

Cases and bases

29622, 174 522, H01H 3502, H01L 2328

Patent

active

058905863

ABSTRACT:
In a resin-embedded switching element provided with a casting containment, which encloses an area of the switching element to be covered by a resin, the casting containment has a fill hole consisting of a blind bore having at its inner end a diaphragm which is sufficiently thin that it can be ruptured by casting resin supplied to the fill hole under pressure and a measuring opening is formed in the top of the casting containment through which air can escape during filling of the casting containment with liquid casting resin and the level of the casting resin in the casting containment can be controlled.

REFERENCES:
patent: 4204231 (1980-05-01), Permenter
patent: 4877930 (1989-10-01), Fukuma
patent: 4895998 (1990-01-01), Bevington
patent: 5293002 (1994-03-01), Grenet et al.

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