Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1991-07-12
1993-08-10
Donovan, Lincoln
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
H01M 6702
Patent
active
052353036
ABSTRACT:
The present invention relates to a kind of electromagnet for applications requiring traction, braking, vibration, electromagnetic valve and contactor operations. The electromagnet according to the present invention has new characteristics of temperature rise. A T-shaped solenoidal structure without a heat dissipating window is provided for the body of the electromagnet. Only under high magnetic flux-density close to saturation can the electromagnet sustain holding. Current limiting switching circuits are also provided. The starting current-density of the coil is very high. The starting ampere-turns is higher than the value adopted in conventional designs, and the holding ampere-turns are very low. A normal fuse tube can be reliably adopted for overheat protection. The electromagnet has distinct advantages of excellent working performance (capable of frequent operation and continuous holding); high protection grade; high reliability and high efficiency; long life; very light weight and small size; greatly conserving both copper and iron, and greatly saving cost. In another aspect, a new generation of miniaturized contactors not having a metal seat and capable of switching higher voltages and/or larger currents may be developed accordingly.
REFERENCES:
patent: 4616203 (1986-10-01), Kakizoe et al.
patent: 4893102 (1990-01-01), Bauer
LandOfFree
Miniaturized universal electromagnet capable of operation in wid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Miniaturized universal electromagnet capable of operation in wid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniaturized universal electromagnet capable of operation in wid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1728369