Electromagnetic rotating armature relay

• US 4,539,540 A
• Filed: 05/18/1983
• Issued: 09/03/1985
• Est. Priority Date: 06/03/1982
• Status: Expired due to Fees

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Stadler, Heinz, Heinzl, Alfred, Kimpel, Rolf-Dieter
• Primary Examiner(s): Goldberg, E. A.
• Assistant Examiner(s): Andrews, George
• Application Number:
  US06/495,648
• Time in Patent Office: 839 Days
• Field of Search: 335/78, 335/79, 335/80, 335/81, 335/83, 335/84, 335/125, 335/128
• US Class Current: 335/125
• CPC Class Codes: H01H 50/548 for miniaturised relays

Abstract

The rotating armature relay exhibits one or two ferromagnetic bars which are provided with an insulating covering in their central area. Contact springs are secured in the insulation covering, the contacting, free ends of said contact springs respectively interacting with cooperating contact elements anchored in a base body. As a result, a slide-free and, thus, low-friction actuation derives as, however, does relatively high friction at the contact locations, whereby contact impacts are suppressed and foreign layers are abraded from the contact surfaces.

Claims

1. An electromagnetic rotating armature relay with a base body consisting of insulating material carrying an exciting coil, terminal elements being anchored in said base body and an armature being rotatably seated approximately centrally thereon, whereby the armature includes at least one elongated, ferromagnetic bar with opposed lateral sides whose free end forms working air gaps with a spaced pair of pole ends of a coil core and an insulation covering encasing the central area of the armature which contains bearing elements, characterized in that contact springs interacting with cooperating contact elements anchored in the base body are secured in the insulation covering of the armature, said contact springs respectively proceeding parallel to the ferromagnetic bar.

2. The relay according to claim 1, characterized in that at least one of said contact springs is provided at each side of the ferromagnetic bar, the center sections of said contact springs being secured in the insulation covering and their two free ends being selectively engageable in respective contact to at least one cooperating contact element.

4. The relay according to claim 1, characterized in that the contact springs secured in the insulation covering of the armature are connected over respective flexible conductors to connection elements anchored in the base body.

5. The relay according to claim 1, characterized in that the contact springs secured in the insulation covering of the armature serve, without their own respective connection elements, as contact bridges between two respective cooperating contact elements.

3. An electromagnetic rotating armature relay with a base body consisting of insulating material carrying an exciting coil, terminal elements being anchored in said base body and an armature being rotatably seated approximately centrally thereon, whereby the armature includes at least one elongated, ferromagnetic bar with opposed lateral sides whose free end forms working air gaps with a spaced pair of pole ends of a coil core and which carries an insulation covering in its central area which contains bearing elements, characterized in that contact springs interacting with cooperating contact elements anchored in the base body are secured in the insulation covering of the armature, two of said contact springs being provided at each side of the ferromagnetic bar, said contact springs respectively proceeding parallel to the ferromagnetic bar, and extending from their fastening point in the insulation covering nearly up to the free end of the armature.

6. An electromagnetic rotating armature relay with a base body consisting of insulating material carrying an exciting coil, terminal elements being anchored in said base body and an armature being rotatably seated approximately centrally thereon, whereby the armature includes at least one elongated, ferromagnetic bar with opposed lateral sides whose free end forms working air gaps with a spaced pair of pole ends of a coil core and which carries an insulation covering in its central area which contains bearing elements, characterized in that contact springs interacting with cooperating contact elements anchored in the base body are secured in the insulation covering of the armature, the armature being trunnion-mounted to the base body by means of bearing elements provided at the insulation covering said contact springs respectively proceeding parallel to the ferromagnetic bar.

7. An electromagnetic rotating armature relay with a base body consisting of insulating material carrying an exciting coil, terminal elements being anchored in said base body and an armature being rotatably seated approximately centrally thereon, whereby the armature includes at least one elongated, ferromagnetic bar with opposed lateral sides whose free end forms working air gaps with a spaced pair of pole ends of a coil core and which carries an insulation covering in its central area which contains bearing elements, characterized in that contact springs interacting with cooperating contact elements anchored in the base body are secured in the insulation covering of the armature, the armature being held on the base body over resiliently deformable bearing elements, said contact springs respectively proceeding parallel to the ferromagnetic bar.

8. The relay according to claim 7, characterized in that extensions of the contact springs are secured in the insulation covering, said extensions being anchored in the base body as said bearing elements for the armature.

9. The relay according to claim 8, characterized in that the contact springs are respectively designed of one piece with the bearing elements and the terminal elements anchored in the base body.