Title: Single-pointer electromagnetic counting device
Application Number: 200510021132 Application Date: 2005.06.21
Publication Number: 1885322 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 single-pointer electromagnetic counter matched with discharge counter, which comprises one integrated support whose central plate has fixing claws at two sides, a counting device containing counting gear, compression spring sheet, pointer 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 50% 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.
Time: 11
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