Contact arrangement for a high breaking capacity relay
AssigneeSiemens Aktiengesellschaft
InventorsJosef Kern, Michael Dittmann
Life of this patent
Estimating the term…
Abstract
In a contact arrangement for high breaking capacity relays having a center contact spring movable between two cooperating fixed contact elements characterized by the contact spring having a contact member secured on each of the two opposite surfaces facing the fixed contact elements with one of the two contact members being of a larger size than the other contact member and the width of the contact spring to form a projection to which a flexible copper lead can be directly secured. As a result thereof, the switched current in a changeover contact can be conducted with low-loss across the center contact spring without an expensive center contact spring of a material which has a good conductivity being required.
Claims14
In a contact arrangement for a high breaking relay having a movable contact spring coacting with at least two fixed contact elements, said contact spring being a center contact spring having a pair of opposite surfaces and a portion extending between the two fixed contact elements, the improvements comprising said portion of the contact spring having two contact members with a contact member on each of the opposite surfaces to form a pair of contact surfaces spaced outward of the opposite surfaces of the portion of the contact spring, said contact members being electrically connected together and being of a highly-conductive material with one of the two contact members being of a size greater than the other and extending beyond an edge of the portion of the contact spring to provide a part projecting beyond said edge, and a flexible lead connected to a terminal element being secured directly to said part to electrically connect the contact members to said terminal element.
In a transfer contact arrangement having a movable contact spring positioned between a pair of spaced-apart fixed contact elements for transferring electrical current thereto, a flexible lead being connected to the movable contact spring, the improvement comprising the movable contact spring being provided with two contact members with a contact member on each of the opposite surfaces of the contact spring to form a contact surface outward of the opposite surface to face the fixed contact elements, one of the two contact members having a size greater than the other of the two contact members and greater than the width of the contact spring to form a projection extending beyond an edge of the contact spring, and said flexible lead being electrically connected directly to said projection.
Dependencies are inferred from the claim text.