Contact system for relays, particularly power relays
AssigneeSchaltbau Gesellschaft mbH
InventorBernhard Dietrich
Life of this patent
Estimating the term…
Abstract
A relay has the contacts arranged in that two pairs of contacts on the armature are arranged so that the contacts of one pair extend at right angles, to the contacts of the other pair, but parallel to a hinge axis. Insulative partitions separate the contacts of the former pair individually from the contacts of the latter pair. Magnetic blower is provided for arc extinguishing.
Claims13
In a power relay with twin contact making facilities for energized as well as unenergized relay, there being a first pair of stationary contacts for contact making when the relay is energized and a second pair of stationary contacts for contact making when the relay is de-energized, the relay including an armature and a core/coil structure for attracting the armature upon energization of the core/coil structure, the improvement comprising:
- a first pair of contacts on the armature and being spaced along a first line which extends at right angles to the direction of movement of the armature upon energization of the core/coil structure, said first pair of stationary contacts being arranged respectively for contact making with the contacts of the first pair of contacts on the armature;
- a second pair of contacts on the armature being arranged in a plane different from any plane through the first line, and at right angles to the direction of armature movement, and on a side of the first line opposite said first pair of stationary contacts, said second pair contacts being spaced along a second line which does not intersect but extends at right angles to said first line when projected into a common plane, further extending at right angles to the direction of movement of the contacts of the second pair, said second pair of stationary contacts being arranged respectively for contact making with the contacts of the second pair of contacts on the armature;
- and
- the armature being disposed for pivot motion on an axis which extends parallel to the second line.
In a power relay with twin-contact making facilities for energized as well as unenergized relay, there being a first pair of stationary contacts for contact making when the relay is energized and a second pair of stationary contacts for contact making when the relay is de-energized, the relay including an armature and a core/coil structure for attracting the armature upon energization of the core/coil structure, the improvement comprising:
- means for hinging the armature along a hinge axis;
- a first pair of contacts on the armature and being spaced along a first axis extending transversely to said hinge axis, said first pair of stationary contacts being arranged respectively for contact making with the contacts of the first pair of contacts on the armature;
- a second pair of contacts on the armature underneath said first pair of stationary contacts and being spaced along a second axis extending parallel to said hinge axis, said second pair of stationary contacts being arranged respectively for contact making with the contacts of the second pair of contacts on the armature;
- and
- said axes do not intersect, but upon projection of the first axis into a plane through the second axis, the projection intersecting the second axis in a point between the contact of the second pair, and upon projecting of the second axis into a plane through the first axis, the latter projection intersecting the first axis in a point between the contacts of the first pair.
In a power relay with twin contact making facilities for energized as well as unenergized relay, there being a first pair of stationary contacts for contact making when the relay is energized and a second pair of stationary contacts for contact making when the relay is de-energized, the relay including an armature and a core/coil structure for attracting the armature upon energization of the core/coil structure, the improvement comprising:
- a first pair of contacts on the armature and being spaced along a first line which extends at right angles to the direction of movement of the armature upon energization of the core/coil structure, said first pair of stationary contacts being arranged respectively for contact making with the contacts of the first pair of contacts on the armature;
- and
- a second pair of contacts on the armature and spaced along a second line which extends at right angles to said first line as well as at right angles to the direction of movement of the contacts of the second pair, said second pair of stationary contacts being arranged respectively for contact making with the contacts of the second pair of contacts on the armature;
- and
- said contacts being arranged so that upon projection of the first line into a plane of the second line, the projection intersecting the second line between the contacts of the second pair, and upon projection of the second line into a plane through the first line, the latter projection intersecting the first line in a point between the contacts of the first pair.
Dependencies are inferred from the claim text.