Electromagnetic relay with high contact rating and improved insulation
First Claim
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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Accused Products
Abstract
An electromagnetic relay having a high contact rating having an armature and yoke movable by the magnetic coil is provided with an insertable internal member having a vertical wall which divides the interior of the relay into a first portion containing the magnetic coil, armature and yoke, and a second portion containing the contact elements and a slidable member for transmitting movement. The insertable member has a second vertical wall perpendicular to the dividing wall which is provided with a slot for receiving the slidable member to permit movement of the member between the two portions of the relay interior. In order to further increase the insulation between the yoke and a stationary contact member, the stationary contact member is provided with a trapezoidal recess which receives a correspondingly shaped projection of the dividing wall which is interposed between the stationary contact element and the slidable member.
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Citations
4 Claims
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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 member
an insulating member comprising a 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. - View Dependent Claims (2, 3, 4)
- an insulating member
Specification