ECCENTRIC ROTOR AND FLAT CORE-LESS VIBRATING MOTOR HAVING THE ECCENTRIC ROTOR

摘要

PROBLEM TO BE SOLVED: To assure the number of effective conductors, to facilitate starting, to facilitate the wire connection treatment of a winding coil terminal, to enable to assure a vibration though it is made small and thin, to add a device also to a housing and to make the thickness of a motor small.;SOLUTION: While a shaft insertion hole is provided at the center of a printed wiring commutator substrate 9 having first and second surfaces. Nine commutator segments S1 are printed and formed radially outward of the shaft insertion hole in the first surface. A conductor which short-circuits these commutator segment patterns every third piece is printed and formed. First, second and third winding coils Ra, Rb and Rc are placed at the open angle of about 80 degrees. The second winding coil is thin to other winding coils. A terminal starting winding crosses a coil strip and is delivered at the beginning of winding. First and third winding coils are integrated on the opposite side in the radial direction of the second winding coil with a resin J together with an eccentric weight W arranged in the thickness of the third winding coil.;COPYRIGHT: (C)2006,JPO&NCIPI