Title: Electromagnetic counting device with two pointer
Application Number: 200520034553 Application Date: 2005.06.21
Publication Number: 000000000 Publication Date:
Approval Pub. Date: 2006.08.09 Granted Pub. Date: 2006.08.09
International Classifi-cation: G06M1/10;G06M1/22;G06M1/02
Applicant(s) Name: Wang Guocai Address:
Inventor(s) Name: Wang Guocai
Attorney & Agent: zhan fuwu
Abstract:
    The utility model belongs to double-pointer electromagnetic counter use match to discharge counter, which comprises one integrated support whose central plate has fixing claws at two sides, a counting device containing counting, feeding and middle gears, limit wheel, dial wheel, dual pointers and reading disk, an electromagnetic coil, an armature iron with dial fork and a return spring, and a magnetic yoke connecting the iron core and the armature iron. Because of the utility model adopt closed form electromagnetism loopcircuitcyclering and omit pole shoe, to reduce the effect of left magnetic field and magnetic delay loss, on the condition of reducing number of coils 54%, electromagnetic force improve near 40%, sensitivity increase to 10*20A, operatingact frequency is more than 30/sec, stand body reduce by 70%. Its advantages are count and carry sensitive, reliability heigh, structure compact, in light weight, small volume, production cost abate about 45%, production rate high. Overcome the disadvantage that background technology is small, residual magnetism
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