Magnetic latch device for a clapper type contactor

Details Magnetic latch device for a clapper type contactor Magnetic latch device for a clapper type contactor

1978-07-25

1979-10-30

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335239, H01F 708

Patent

active

041730046

ABSTRACT:
A magnetic latch for a clapper type contactor having an electromechanical system comprising an operating coil, a coil core, a magnet frame, and an armature includes a magnetic latch plate. The magnetic latch plate includes a stop portion having a pair of ears mounted on a pivoted contact arm. The stop portion of the latch abuts against the magnet frame before energization of the coil so that a flux path includes the core, the magnet frame, the magnetic latch, the armature and the air gap between the armature and core of the coil. After the coil is energized and the current begins to build the magnetic latch saturates an additional parallel flux path travels from the core to the magnet frame through the heel air gap of the armature through the armature to the air gap between the armature and core of the coil until the combined force across the heel air gap and the air gap between the magnet frame and armature and the armature and the core, respectively, are greater than the force between the magnet frame and the magnetic latch, then the armature closes against the core. The amount of latch force desired is controlled by adjusting the cross-sectional area of the magnetic latch.

REFERENCES:
patent: 3689855 (1972-09-01), Setone et al.
patent: 3777294 (1973-12-01), Grenier

Affiliated with

Also associated with

Rating

Magnetic latch device for a clapper type contactor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetic latch device for a clapper type contactor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic latch device for a clapper type contactor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-21197