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US 10,804,056 B2Granted
Electrical switch
AssigneeABB AB
InventorsFredrik Strand, Mikko Välivainio, Jukka Lintamo, Juha Soldan
Life of this patent
Estimating the term…
Abstract
An electrical switch. The electrical switch includes at least one fixed contact and a movable contact contacting the fixed contact. At least one shutter element is arranged to move in synchronism with the movable contact. The shutter element is positioned in an extended position between the fixed contact and the movable contact and in a contracted position outside the patch of the movable contact allowing the movable contact to turn from the open position to the closed position.
Claims10
An electrical switch comprises
- a first fixed contact and a second fixed contact positioned opposite to and at a distance from the first fixed contact,
- a movable contact having a rotational axis positioned in a middle portion of the movable contact, the rotational axis of the movable contact being positioned between the first fixed contact and the second fixed contact, the movable contact being rotatable between a closed position in which a first outer end of the movable contact makes contact to the first fixed contact and a second outer end opposite to the first outer end of the movable contact makes contact to the second fixed contact and an open position in which the movable contact is electrically isolated from the first fixed contact and the second fixed contact,
- a first shutter element positioned in connection with the first fixed contact,
- a second shutter element positioned in connection with the second fixed contact,
- each shutter element being movable in synchronism with the movable contact between an extended position in which the shutter element is positioned between a respective fixed contact and the movable contact when the movable contact is in the open position, and a contracted position in which the shutter element is positioned outside a path of the movable contact to turn from the open position to the closed position.
2 more elements
Dependencies are inferred from the claim text.