Patent ID: 7812491
Filing Date: 2010-10-12
Classification: H02K

Abstract:
1. A stepping motor comprising: a rotor fixed to a rotating shaft and comprising alternately magnetized N and S poles; a pair of front and rear stators having magnetic pole teeth surrounding the rotor; and a housing surrounding the stators, wherein the housing consists of a pair of case sections arranged in front and rear in an axial direction of the rotating shaft, the case sections in a developed state comprise: an end plate to which a bearing for supporting the rotating shaft is fixed, a base plate extending from the end plate, a top plate extending from the end plate in opposition to the base plate, and side plates protruding from the base plates, and side plates protruding from the top plates, wherein the side plates on the base plate side are formed by bending towards the inside of the housing at an obtuse angle between the base plates and the side plates, and the side plates on the top plate side are formed by bending towards the inside of the housing at an obtuse angle between the top plates and the side plates, and, the base plate and the top plate are formed by bending so that the base plates and top plates surround the stators and are mutually opposed.