Alternating current switch contactor
AssigneeJohnson Electric S.A.
InventorRichard Anthony Connell
Life of this patent
Estimating the term…
Abstract
An electrical contactor has a first terminal having a fixed member with at least one fixed electrical contact, a second terminal, and a busbar connected to the second terminal. Two conductive movable arms are connected to the busbar and have a contact thereon. One arm is biased-closed to contact the fixed electrical contact in the absence of a separating force, and the other arm is biased-open to be spaced away from the fixed electrical contact in the absence of a closing force. The first and second movable arms and the busbar are arranged so that, when the contacts close, contra-flowing current urges the movable arms towards the fixed member to increase a force between the contacts.
Claims20
An electrical contactor comprising:
- a first terminal having a fixed member with at least one fixed electrical contact;
- a second terminal;
- a busbar in electrical communication with the second terminal;
- at least two electrically-conductive movable arms connected to the busbar and having a movable electrical contact thereon;
- a biased-closed movable arm of at least two electrically-conductive movable arms being preformed and preloaded to be biased towards with the said at least one fixed electrical contact in the absence of a separating force;
- and
- a biased-open movable arm of at least two electrically-conductive movable arms being preformed and preloaded to be biased away from the said at least one fixed electrical contact in the absence of a closing force,
- wherein the biased-closed and biased-open movable arms and the busbar being arranged so that, when the contacts close, contra-flowing current urges the movable arms towards the fixed member to increase a force between the contacts.
A movable electrical contact set comprising an electrically-conductive busbar;
- at least two electrically-conductive movable arms connected to the busbar and having a movable electrical contact thereon;
- and at least one fixed electrical contact;
- a biased-closed movable arm of at least two electrically-conductive movable arms being preformed and preloaded to be biased towards the said at least one fixed electrical contact in the absence of a separating force;
- a biased-open movable arm of at least two electrically-conductive movable arms being preformed and preloaded to be biased away from the said at least one fixed electrical contact in the absence of a closing force;
- and the biased-closed and biased-open movable arms and the busbar being arranged so that, when the contacts close, contra-flowing current urges the movable arms away from the busbar to increase a force between the contacts.
Dependencies are inferred from the claim text.