Patent ID: 7975365
Filing Date: 2011-07-12
Classification: H02K,Y10T

Abstract:
1. A method for making a stepping motor, comprising: preparing a bracket, a housing coupled to the bracket, and a stator disposed in the housing, wherein the bracket includes a first hooking part and a second hooking part, and wherein the housing includes a first portion coupled to the bracket, a second portion connected to the first portion, and a third portion integrally formed on the second portion, and wherein the stator includes a first stator faced with the first portion of the housing and a second stator faced with the second portion of the housing; installing a first bearing structure at the first hooking part; inserting a rotor in the housing, wherein the rotor includes a shaft and a magnet coupled to the shaft, and wherein an end of the rotor is supported on the first bearing structure by penetrating the second hooking part; disposing a second bearing structure in the third portion of the housing after inserting the rotor in the housing; and coupling a stopper to the third portion of the housing after disposing the second bearing structure in the third portion of the housing, wherein an inner surface of the stopper is contacted with an outer surface of the third portion of the housing, wherein the stopper is overlapped with the third portion of the housing in a radial direction and the stopper is not overlapped with the first and second portion of the housing in the radial direction.