Back to results
US 4,101,855 AGranted
Miniature relay
AssigneeHi-G Incorporated
InventorDonald R. Drapeau
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeHi-G Incorporated
InventorDonald R. Drapeau
Estimating the term…
A miniature relay having an electromagnet assembly including a coil carried by a magnetic frame member which assembly is supported on a non-magnetic coil support member which in turn is secured to a header containing an arrangement of stationary and movable contacts and terminal pins. The magnetic frame member includes a core extending through and slightly beyond the coil and a pole piece outwardly adjacent the coil. An armature is held in position by the cooperation of spaced-apart holding elements depending from the electromagnet assembly which saddle a recess area in the armature, and a return spring carried by the header continuously urges the armature into saddle defined by the holding elements. The pull-in force of the electromagnet is enhanced by a mating tab and notch configuration of the pole piece and armature or by an end portion of the pole piece disposed to present increased surface area facing the armature.
A miniature relay comprising:
A motor assembly for a miniature relay comprising:
An improved flux path for a miniature relay comprising a coil carried by a magnetic frame having a pole piece terminating in a pole face portion and an armature having a portion spaced a small distance from said pole face portion defining an air gap therebetween when said coil is de-energized, said armature adapted for movement in response to energization of said coil to close said air gap, said pole face portion and said armature portion having a closely-fitting, mating tab and notch configuration which increases the extent of said air gap along said armature and pole face portions to enhance the pull-in force between said armature and pole piece when said coil is energized.
An improved flux path for a miniature relay comprising a coil carried by a magnetic frame having a pole piece including a main body portion and an end portion, and an armature having a portion spaced a small distance from said pole piece end portion defining an air gap therebetween when said coil is de-energized, said armature adapted for movement in response to energization of said coil to close said gap, said pole piece end portion being disposed at an angle to said main body portion in a manner such that the area of the pole piece end portion surface facing said armature is greater than the cross-sectional area of said pole piece main body portion thereby enhacing the pull-in force between said armature and pole piece when said coil is energized.
A mounting for supporting an electromagnet in a miniature relay, said electromagnet comprising a coil within a magnetic frame including spaced-apart leg members extending therefrom, a supporting base, and a supporting element of non-magnetic material comprising a generally planar body portion and a pair of leg members extending therefrom, said leg portions of said supporting element being fixed to said base, said leg members of said magnetic frame being fixed to said supporting element and said coil being supported on said planar base portion of said supporting element.
Dependencies are inferred from the claim text.