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US 5,844,456 AGranted
Electromagnetic relay
AssigneeEH-Schrack Components Aktiengesellschaft
InventorLeopold Mader
Life of this patent
Estimating the term…
Abstract
An electromagnetic relay is provided with an electromagnet system with a U-shaped core yoke and an essentially flat armature, which form a working air gap on a longitudinal side underneath the coil winding. One yoke limb lies immediately on the coil winding, so that the make motion of the armature is towards the coil. In this way, a relatively large contact room is formed underneath the yoke limb and a movable contact spring extends approximately parallel under the armature. The contact spring is actuated by the armature which draws an actuating element. The relay enables a relay for high switching capacity with a changeover contact and with large insulating distances between the magnet system and the contact arrangement.
Claims30
An electromagnetic relay comprising:
- a U-shaped core yoke having a core limb and a yoke limb, the core limb extending through an elongated coil with a free end of the core limb being disposed outside of the coil, the yoke limb being disposed below the coil and extending along a portion of the coil, the yoke limb having an end portion forming a pole segment,
- the relay further comprising an armature, the armature comprising a bearer end disposed adjacent to the free end of the core limb, the armature further comprising an opposing pole end, the pole end of the armature being disposed underneath the pole segment of the core limb with a working air gap disposed therebetween,
- the pole end of the armature being coupled to an actuator, the actuator comprising a hook element, the armature being coupled to a switching spring and linking the pole end of armature to the switching spring, the switching spring supporting a movable contact, the movable contact being disposed between two fixed contacts,
- the relay further comprising a base element disposed below the yoke limb and armature and above the contacts and switching spring, the base element being fabricated from an insulating material, the base element further comprising a hole through which the hook element of the actuator passes.
1 more element
An electromagnetic relay comprising:
- a U-shaped core yoke having a core limb and a yoke limb, the core limb extending through an elongated coil with a free end of the core limb being disposed outside of the coil, the yoke limb being disposed below the coil and extending along a portion of the coil, the yoke limb having an end portion forming a pole segment,
- the relay further comprising an armature, the armature comprising an upwardly protruding bearer end disposed adjacent to the free end of the core limb, the armature further comprising an opposing pole end, the opposing pole end being disposed underneath the pole segment of the yoke limb with a working air gap disposed therebetween, the pole end further comprising a hole for accommodating an end of an actuator,
- the actuator comprising a hooked end and a foot portion, the hooked end of the actuator being accommodated in the hole disposed in the pole end of the actuator, the foot portion of the actuator being coupled to a switching spring,
- the relay further comprising a base element comprising insulating material, the base element being disposed below the yoke limb and the armature and above the contacts and the switching spring,
- the base element further comprising a hole, the hook element of the actuator passing through said hole before being coupled to the pole end of the armature,
- the switching spring being connected to a movable contact, the movable contact being disposed between two fixed contacts.
3 more elements
An electromagnetic relay comprising:
- a U-shaped core yoke having a U-shaped middle section, core limb and a yoke limb, the core limb extending between first and second ends of an elongated coil with a free end of the core limb being disposed outside of the first end coil, the U-shaped middle section being disposed outside the second end of the coil, the yoke limb being disposed below the coil and extending along a portion of the coil, the yoke limb having an end portion forming a pole segment,
- the relay further comprising an armature, the armature comprising an upwardly protruding bearer end disposed adjacent to the free end of the core limb, the armature further comprising an opposing pole end, the opposing pole end being disposed underneath the pole segment of the yoke limb with a working air gap disposed therebetween, the pole end further comprising a hole for accommodating an end of an actuator,
- the actuator comprising a hooked end and a foot portion, the hooked end of the actuator being accommodated in the hole disposed in the pole end of the actuator, the foot portion of the actuator being coupled to a switching spring and a reset spring,
- the switching spring being connected to a movable contact, the movable contact being disposed between two fixed contacts,
- the reset spring being coupled to the actuator and biasing the actuator and the pole end of the armature away from the yoke limb,
- the relay further comprising a base element comprising insulating material, the base element being disposed below the yoke limb and the armature and above the contacts and the switching spring, the switching spring being connected to an underside of the base element,
- the base element further comprising a hole, the hook element of the actuator passing through said hole before being accommodated in the pole end of the armature, the base element defining a contact room for housing the fixed and moveable contacts, the contact room being disposed beneath the yoke limb and beyond the pole end of the armature end, the base element further defining an insulated switching room for accommodating the switching spring and the foot portion of the actuator.
4 more elements
An electromagnetic relay comprising:
- a U-shaped core yoke having a core limb and a yoke limb, the core limb extending through an elongated coil with a free end of the core limb being disposed outside of the coil, the yoke limb being disposed below the coil and extending along a portion of the coil, the yoke limb having an end portion forming a pole segment,
- the relay further comprising an armature, the armature comprising a bearer end disposed adjacent to the free end of the core limb, the armature further comprising an opposing pole end, the pole end of the armature being disposed underneath the pole segment of the core limb with a working air gap disposed therebetween,
- the pole end of the armature being coupled to an actuator, the actuator being coupled to a switching spring and linking the pole end of armature to the switching spring, the switching spring supporting a movable contact, the movable contact being disposed between two fixed contacts,
- the relay further comprising a base element comprising insulating material, the base element being disposed below the yoke limb and the armature and the base element being disposed above the contacts and the switching spring, an underside of the base element accommodating the switching spring, the base element further comprising a hole, a hook element of the actuator passing through said hole before coupling to the pole end of the armature,
- the fixed and moveable contacts being disposed beneath the yoke limb and beyond the pole end of the armature end.
2 more elements
Dependencies are inferred from the claim text.