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Getter device for vacuum circuit breaker

A technology for vacuum circuit breakers and suction devices, which is applied to high-voltage air circuit breakers, circuits, electrical components, etc., and can solve problems such as high production costs, high costs, and reduced effective current-carrying diameters

Inactive Publication Date: 2007-10-03
EATON ELECTRIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To improve this, a larger strip needs to be used, which entails a higher cost
Also, a longer slot or slots that exist over the entire perimeter can be defective at high currents due to the reduced effective current-carrying diameter.
In addition, a longer slot also requires higher production costs

Method used

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  • Getter device for vacuum circuit breaker
  • Getter device for vacuum circuit breaker
  • Getter device for vacuum circuit breaker

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] FIG. 1 shows a cross-sectional view of a possible embodiment of a vacuum interrupter 10 equipped with a suction device according to the invention. The vacuum interrupter 10 has a vacuum interior 12 surrounded by a housing. The housing is made of an insulating material such as ceramic, or according to this embodiment a compound of ceramic and metal. The housing is formed by a first end cap 11 , a ceramic sleeve 20 and a second end cap 21 . A vacuum circuit breaker 10 for use in a vacuum switch generally includes a vacuum interior space 12 including a fixed contact 15 and a movable contact 14 (also referred to as a contact body). The fixed contact 15 and the movable contact 14 are supported and driven by a fixed contact pin 13 and a movable contact pin 16, respectively. There is a first shield 17 made of copper or steel connected to the first end cover 11 inside the housing. Inside the housing there is also a second shield 19 which shields a bellows 18 which moves the ...

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PUM

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Abstract

Getter device for positioning in a vacuum interior space ( 12 ) of a vacuum circuit breaker ( 10 ). The getter device comprises at least one tablet ( 2 ) of getter material. The interior space ( 12 ) comprises a metal wall ( 13, 16. 11, 17, 19, 21 ) with a groove ( 4 ) in which the at least one tablet ( 2 ) can be placed, and the at least one tablet ( 2 ) can be fixed by at least one depression in an edge ( 7; 9 ) of the groove ( 4 ). The metal wall may be formed by a contact pin ( 13, 16 ) of one of the contacts ( 14, 15 ) or a wall of the enclosure, which comprises an end cap ( 11 ), a first shielding ( 17 ), a second shielding ( 19 ) or a second end cap ( 21 ).

Description

technical field [0001] The present invention relates to a suction device placed in the vacuum inner space of a vacuum circuit breaker. Background technique [0002] In vacuum circuit breakers provided with a fixed contact, a movable contact and a housing surrounding the (both) contacts, the circuit breaker is usually provided with a suction device. The suction device is used to absorb gases that may be released and / or diffuse into the enclosure during operation of the vacuum circuit breaker, ie when the vacuum circuit breaker is switched between on and off , thus bringing adverse consequences to the quality of the vacuum. [0003] A suction device of this type is known, for example, from German utility model DE-U 29704327. The device utilizes a tape-shaped support composed of a specific material, such as nickel-plated iron or constantan, coated on both sides with a getter material such as zirconium-aluminum (ZrAl) or zirconium-vanadium-iron (ZrVFe). The tape carrier is pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/66H01H33/668
CPCH01H33/6683
Inventor M·B·J·洛伊森坎普J·H·L·A·希尔德林克
Owner EATON ELECTRIC INC