Electrical circuit switch with variable gear ratio
AssigneeABB Schweiz AG
InventorsBjorn Lunden, David Karlen, Arne Trangard, Stefan Lunderius
Life of this patent
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Abstract
An electrical circuit switch including: a first movable element configured for being movable by a force applied to the first movable element, the force having a direction parallel to a first axis; and a second movable element including a movable contact and being configured for, by means of the force, moving the movable contact in parallel to a second axis between an open and a closed position, corresponding to the switch opening or closing an electrical circuit. The first axis forms an angle to the second axis and the first movable element and the second movable element are pivotally arranged to each other in a first joint.
Claims17
An electrical circuit switch comprising:
- a first movable element configured to move in parallel along a first axis of said first moveable element in response to a force applied to said first movable element, said force having a direction parallel to the first axis;
- and
- a second movable element comprising a movable contact and being configured to, by means of said force, move said movable contact in a direction parallel to a second axis between an open position and a closed position, corresponding to the switch opening or closing an electrical circuit;
- wherein the first axis forms an angle to the second axis;
- and
- wherein the first movable element and the second movable element are pivotally connected to each other in a first joint.
A method of operating an electrical circuit switch comprising a first movable element pivotally connected to a second movable element in a first joint, the method comprising:
- applying a force to the first movable element in a direction parallel to a first axis of the first movable element to move the first movable element in parallel along the first axis, such that the force is transmitted to the second element via the first joint and moves a movable contact of the second element in a direction parallel to a second axis and into contact with a fixed contact, thereby closing an electrical circuit, wherein the first axis forms an angle to the second axis;
- and
- holding the movable contact in contact with the fixed contact by means of applying the force to the first element.
An electrical circuit switch comprising:
- a first movable element configured to move in parallel along a first axis of said first moveable element in response to a force applied to said first movable element, said force having a direction parallel to the first axis;
- and
- a second movable element comprising a movable contact and being configured to, by means of said force, move said movable contact in parallel to a second axis between an open position and a closed position, corresponding to the switch opening or closing an electrical circuit;
- wherein the first axis forms an angle to the second axis;
- and
- wherein the first movable element and the second movable element are pivotally connected to each other in a first joint;
- wherein the first movable element and second movable element provide a gear ratio which varies during movement of said movable contact between the open position and the closed position, corresponding to the switch having a speed which changes as it opens or closes the electric circuit.
Dependencies are inferred from the claim text.