Electrical switching device
AssigneeSiemens Aktiengesellschaft
InventorsRoland Monka, Christian Dengler
Life of this patent
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Abstract
An electrical switching device includes a first switching contact piece and a second switching contact piece. The switching contact pieces can be displaced in relation to each other. The first switching contact piece is surrounded by a fluid flow guiding device. An enveloping contour of a flow duct, disposed between the fluid flow guiding device and the first switching contact piece, is greater at its end facing the second switching contact piece than an enveloping contour of the first switching contact piece at its end facing the second switching contact piece.
Claims15
An electrical switching device, comprising:
- a first switching contact piece and a second switching contact piece, said switching contact pieces being movable relative to one another, said first switching contact piece having a lateral surface side and an enveloping contour with an end facing said second switching contact piece;
- a fluid flow guiding device surrounding said lateral surface side of said first switching contact piece and forming a flow duct delimited between said fluid flow guiding device and said first switching contact piece, said flow duct having an enveloping contour with an end facing said second switching contact piece;
- and
- at least said end of said enveloping contour of said flow duct facing said second switching contact piece, being larger than said end of said enveloping contour of said first switching contact piece facing said second switching contact piece.
Dependencies are inferred from the claim text.