Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same

The tubular vapor shield of a vacuum interrupter is secured to the ceramic by a shield mount which includes a split ring seated in a circumferential groove formed in the inner surface of the ceramic. The tubular vapor shield is secured to the split ring by a connection which includes a circumferenti...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SLADE PAUL GRAHAM, BURMINGHAM DALE LOWELL, ROSENKRANS BENJAMIN ALEX, MAYO STEPHEN DAVID, DUNHAM BRADLEY EUGENE
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING RELAYS SELECTORS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The tubular vapor shield of a vacuum interrupter is secured to the ceramic by a shield mount which includes a split ring seated in a circumferential groove formed in the inner surface of the ceramic. The tubular vapor shield is secured to the split ring by a connection which includes a circumferential flange brazed to the shield and a braze ring which is wedged in an annular gap between the flange and the vapor shield and which melts when heated in a vacuum oven to braze the split ring to the vapor shield and the flange. In another embodiment, the flange has a radial outward rim which seats on the split ring. In an additional embodiment, the connection between the split ring and the vapor shield includes a circumferential shield groove in the outer surface of the vapor shield in which the split ring is also seated and optionally secured by a braze. In yet another embodiment, an additional split ring seated in a circumferential groove in the outer surface of the vapor shield is brazed to the split ring seated in the groove in the ceramic.