Patent ID: 6373361
Filing Date: 2002-04-16
Classification: F01L,F16K,H01F

Abstract:
A core of a solenoid actuator, for attracting an armature during operation of said solenoid actuator, comprising:a plurality of core plates made of a magnetically soft material and stacked in a predetermined direction orthogonal to a direction of attracting said armature to form a laminated stack, for forming magnetic circuits between said armature and said core plates themselves during said operation of said solenoid actuator; two core holders formed of a non-magnetic material and sandwiching said laminated stack of said plurality of core plates therebetween along said predetermined direction; an insulator interposed between each adjacent two of said plurality of core plates, for insulating said each adjacent two core plates from each other; and fixing means rigidly securing said plurality of core plates and said two core holders to each other to form a unitary assembly.