Title: Double-pointer electromagnetic counting device
Application Number: 200510021131 Application Date: 2005.06.21
Publication Number: 1885321 Publication Date: 2006.12.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G06M1/10,G06M1/22,G06M1/02
Applicant(s) Name: Wang Guocai Address: 643000
Inventor(s) Name:
Attorney & Agent: zhan fuwu
Abstract:
     The invention relates to a dual-pointer electromagnetic counter matched with discharge counter, which comprises: an 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, a return spring, and a magnetic yoke connecting the iron core and the armature iron. The invention uses closed electromagnetic loop to avoid pole shoe, to reduce the effect of left magnetic field and magnetic delay loss, to improve 40% electromagnetic force with reduced half of coil number, improve 10-20A sensitivity, and reduce 70% of element number while the motion frequency is higher than 5n/s. The invention has high sensitivity, high reliability, compact structure and low cost.
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