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Electromagnetic relay with high contact rating and improved insulation

  • US 4,302,742 A
  • Filed: 02/14/1980
  • Issued: 11/24/1981
  • Est. Priority Date: 03/30/1979
  • Status: Expired due to Term
First Claim
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1. In an electromagnetic relay having a coil with a plunger therein, said plunger movable in response to a signal operating said coil, a yoke-and-armature assembly engaging said plunger for co-movement therewith, a movable contact element movable to make and break electrical contact with at least one fixed contact element, said contact elements each having contacting portions, the improvement of:

  • an insulating memberan insulating member comprisinga base which forms a bottom of said relay,a vertical wall disposed between said magnetic system and said contact elements which divides the interior of said relay into essentially non-communicating portions to prevent arcing therebetween,a lateral wall orthogonal to said vertical wall and said base having a lateral groove therein disposed adjacent said contact elements beneath the contacting portions thereof; and

    a U-shaped slidable member having a central connecting portion slidably received for lateral movement in said groove and having a first leg perpendicular to said connecting portion engaging said armature and a second leg perpendicular to said central portion engaging said movable contact element,whereby movement of said plunger is transmitted through said yoke-and-armature assembly and said slidable member to move said movable contact element.

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