Relay with first and second electromagnets for placing and keeping a contact in a closed state
AssigneeEpcos AG
InventorPeter Bobert
Life of this patent
Estimating the term…
Abstract
The present invention relates to a relay (1), having a first terminal (2), a second terminal (3), a contact (4) which in a closed state brings about an electrical connection between the first and second terminals (2, 3) and which in an opened state electrically disconnects the first and second terminals (2, 3), a first electromagnet (5) which is configured in such a way that it places the contact (4) in the closed state if the first electromagnet (5) is switched on, and a second electromagnet (6) which is configured in such a way that it keeps the contact (4) in the closed state if the contact (4) is in the closed state and the second electromagnet (6) is switched on.
Claims12
A relay comprising:
- a first terminal;
- a second terminal;
- a contact which in a closed state brings about an electrical connection between the first and second terminals and which in an opened state electrically disconnects the first and second terminals;
- an armature which is mechanically connected to the contact;
- a first electromagnet which is configured to move the armature from a first position to a second position, thereby placing the contact in the closed state if the first electromagnet is switched on;
- and
- a second electromagnet which is an air-gap-free holding magnet and which is configured to keep the armature in the second position and to keep the contact in the closed state if the contact is in the closed state and the second electromagnet is switched on,
- wherein the armature abuts the second electromagnet in the second position without an air gap in-between, does not abut the second electromagnet in the first position, and does not abut the first electromagnet in the second position, and
- wherein the first and second electromagnet are arranged displaced from each other along the direction of the movement from the first position to the second position.
Dependencies are inferred from the claim text.