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US 12,198,871 B2Granted
Electrical switch
AssigneeABB Schweiz AG
InventorFredrik Strand
Life of this patent
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Abstract
An electrical switch including a frame, an operating shaft, and a bridge member movable in a depth direction relative to the frame by rotation of the operating shaft, wherein the depth direction is parallel with a rotation axis of the operating shaft, and wherein the operating shaft is adapted to exert a first opening force to the bridge member during an opening event. The electrical switch includes an anti-tilting member movable in a lateral direction relative to the frame by rotation of the operating shaft, the lateral direction being perpendicular to the depth direction, wherein the anti-tilting member is adapted to exert a second opening force to the bridge member during the opening event, the second opening force being parallel to the first opening force and spaced apart from it in the lateral direction.
Claims16
An electrical switch comprising:
- a frame;
- an operating shaft rotatable relative to the frame between a first shaft position and a second shaft position;
- a bridge member movable in a depth direction relative to the frame between a first bridge position and a second bridge position by rotation of the operating shaft, wherein the depth direction is parallel with a rotation axis of the operating shaft;
- and
- a movable contact system having a plurality of movable contacts, each of the movable contacts being movable relative to the frame between a connected position and a disconnected position such that the connected position corresponds to a connected state of the electrical switch, and the disconnected position corresponds to a disconnected state of the electrical switch,
- wherein the rotation of the operating shaft from the first shaft position to the second shaft position is adapted to provide an opening event in which the bridge member moves from the first bridge position to the second bridge position, and the electrical switch transfers from the connected state to the disconnected state, wherein the operating shaft is adapted to exert a first opening force to the bridge member during the opening event,
- wherein the electrical switch comprises an anti-tilting member movable in a lateral direction relative to the frame between a first position and a second position by the rotation of the operating shaft, the lateral direction being perpendicular to the depth direction, wherein the anti-tilting member is adapted to exert a second opening force to the bridge member during the opening event, the second opening force being parallel to the first opening force and spaced apart from the first opening force in the lateral direction,
- wherein the anti-tilting member comprises a first ramp surface, and the bridge member comprises a second ramp surface adapted to co-operate with the first ramp surface during the opening event such that said co-operation provides the second opening force,
- wherein during the opening event, the anti-tilting member moves translationally in the lateral direction in response to the rotation of the operating shaft.
6 more elements
An electrical switch comprising:
- a frame;
- an operating shaft rotatable relative to the frame between a first shaft position and a second shaft position;
- a bridge member movable in a depth direction relative to the frame between a first bridge position and a second bridge position by rotation of the operating shaft, wherein the depth direction is parallel with a rotation axis of the operating shaft;
- and
- a movable contact system having a plurality of movable contacts that are electrically insulated from each other, each of the movable contacts being movable relative to the frame between a connected position and a disconnected position such that the connected position corresponds to a connected state of the electrical switch, and the disconnected position corresponds to a disconnected state of the electrical switch,
- wherein the rotation of the operating shaft from the first shaft position to the second shaft position provides an opening event in which the bridge member moves from the first bridge position to the second bridge position, and the electrical switch transfers from the connected state to the disconnected state, wherein the operating shaft exerts a first opening force directly on the bridge member during the opening event,
- wherein the electrical switch comprises an anti-tilting member movable translationally in a lateral direction relative to the frame between a first position and a second position in response to the rotation of the operating shaft, the lateral direction being perpendicular to the depth direction, wherein the anti-tilting member exerts a second opening force directly on the bridge member during the opening event,
- wherein the first opening force is an off-center force with a vector located at a distance from a center of mass of the bridge member, and the second opening force is located on an opposite side of the center of mass of the bridge member relative to the first opening force.
5 more elements
Dependencies are inferred from the claim text.