Abstract: In assembling a stator being divided into a pole portion and a yoke portion and provided with a winding on the insulated pole portion, the yoke portion is forcibly enlarged outwardly, whereafter the tip ends of the projections of the pole portion are fitted in the recesses of the yoke portion. The two opposing surfaces of each recess are made parallel to each other and the bottom surface of the recess is made parallel to the outer peripheral surface of the yoke portion. The thickness of a portion existing between the bottom surface and the outer peripheral surface is not exceeding 3% of the diameter of the yoke portion and is not less than the thickness of an iron plate of the laminated iron core, whereby the press-fitting load applied when the pole portion is fitted into the yoke portion enlarged is reduced. Thus, even a large-sized stator iron core can readily be assembled and an electric motor of improved properties and enhanced output obtained.

Abstract: A resin-molded motor constituted by a rotor, a laminated stator having generally axially and radially extending slots defining pole pieces therebetween and resin material molded in the inner portions of the slots and over the inner ends of the slots for insulation and bonding of the laminated stator, a generally cylindrical resin material shroud at each end of the stator extending from the corresponding axial end face at the inner peripheral portion thereof and extending axially of the motor, a steel sheet bracket on the axially outer end of each of the shrouds and having journal means therein supporting the rotor, a plurality of windings around the pole pieces of the stator and having axially outer coil ends against the shrouds, a connector having connector terminals to which conductor ends of the windings are connected for supplying power to the windings, and a housing of resin material molded around the stator, the windings, the shrouds, the brackets and the connector with the terminals exposed from the ho

Abstract: A resin-molded motor constituted by a rotor, a laminated stator having generally axially and radially extending slots defining pole pieces therebetween and resin material molded in the inner portions of the slots and over the inner ends of the slots for insulation and bonding of the laminated stator, a generally cylindrical resin material shroud at each end of the stator extending from the corresponding axial end face at the inner peripheral portion thereof and extending axially of the motor, a steel sheet bracket on the axially outer end of each of the shrouds and having journal means therein supporting the rotor, a plurality of windings around the pole pieces of the stator and having axially outer coil ends against the shrouds, a connector having connector terminals to which conductor ends of the windings are connected for supplying power to the windings, and a housing of resin material molded around the stator, the windings, the shrouds, the brackets and the connector with the terminals exposed from the ho

Abstract: A method for manufacturing a stator for use in a rotating machine provided with a core main body having a plurality of teeth projecting from an outer circumferential side of the core main body and wound with a coil, and a ring member fitted on the outer circumferential portion thereof. The method includes the steps of: inserting a jig into an interior of the core main body; clamping a wind start portion of the coil on one portion of the jig, winding the coil between the teeth, and clamping wind terminating portion of the coil on the other portion of the jig; fitting the ring member over the outer circumferential portion of the core main body; mounting a terminal unit on the stator; winding the end of the coil, clamped on the jig, around respective pins of the terminal unit and soldering the ends of the coil onto the pins; and shaping configuration of the coil wound between the teeth.