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US 5,847,347 AGranted
Vacuum interrupter
AssigneeSiemens Aktiengesellschaft
InventorsWolfgang Schwarze, Jorg Kusserow, Klaus Oberndorfer
Life of this patent
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Abstract
To allow soldering of all parts of the housing including the tubular shield of a vacuum interrupter in a single operation, the metal cap (9) made of silver-plated copper enclosing the two contacts (1, 2) is provided with peripheral structuring (10, 11) on its rim (19) that is to be soldered to an end face of the hollow cylindrical insulator (12). At its flange-like rim (17), the tubular shield (16) is in contact with the same end face of the insulator (12) over spacer knobs (20) distributed around its circumference.
Claims5
A vacuum interrupter comprising:
- a two-pole contact arrangement including a movable contact and a stationary contact, each of the contacts having a current conducting pin;
- a housing enclosing the contact arrangement, the housing including a metal cap soldered to the current conducting pin of the stationary contact and surrounding both the stationary contact and the movable contact, wherein the metal cap includes copper plated with silver;
- a hollow cylindrical insulator, the insulator being soldered to a rim of the metal cap at a first end of the insulator, wherein the rim of the metal cap is provided with at least one feature which is 0.2 to 0.6 mm high;
- a bellows, a first end of the bellows being soldered to a second end of the insulator and a second end of the bellows being soldered to a ring flange on the current conducting pin of the movable contact;
- and
- a tubular shield, the tubular shield having a flange-like rim with a plurality of spacer knobs distributed around the rim, wherein the tubular shield is in contact with the first end of the insulator via the spacer knobs.
3 more elements
Dependencies are inferred from the claim text.