A stator for a drive motor includes: a segmented stator core including a plurality of mounting portions; a bobbin equipped on each mounting portion of the plurality of the mounting portions and having a coil wound thereon; a first casing and a second casing coupled to the bobbin, respectively, at opposite sides of the bobbin with respect to the segmented stator core, and configured to enclose the coil; a passage formed in one of the first casing or the second casing, and configured to allow fluid communication with the inside of the first casing and the second casing; and a terminal portion integrally formed in a remaining one of the first casing or the second casing and configured to allow connection of the coil.

The present invention relates to an injection molding stepping motor, including an injection molding stator assembly and a rotor assembly, wherein the injection molding stator assembly includes a stator iron core, a front framework, a rear framework, a stator winding, a front lining ring, a rear lining ring and a mounting bracket, the stator winding is wound in a groove of the stator iron core into which the front framework and the rear framework are inserted, the front lining ring and the rear lining ring are mounted on two sides of the stator iron core, the stator iron core is fixed on the mounting bracket, and the front lining ring and the rear lining ring each adopts a structure which is formed by punching and laminating thin plates with different inner diameters. Compared with the prior art, the present invention has the advantages of reducing axial magnetic flux leakage of a motor and improving the moment of the motor.

An electric machine including a rotor and a stator positioned about the rotor. The stator includes a stator core having a plurality of stator teeth and a plurality of stator windings supported by the stator core about the plurality of stator teeth. The plurality of stator windings include a first end turn and a second end turn. The stator includes a plurality of interlocking insulators extending about corresponding ones of the plurality of stator teeth. Each of the plurality of interlocking insulators includes a first base portion extending circumferentially outwardly in a first direction and a second base portion extending circumferentially outwardly in a second direction. The first base portion being configured to inter-engage with a second base portion on an adjacent interlocking insulator to form a coolant passage and a coolant barrier about the air gap.

Provided are a one body type terminal assembly of a driving motor for a vehicle and a manufacturing method thereof, the one body type terminal assembly including a bus bar assembly including a plurality of ring-shaped bus bars overlapping each other, each of which is primarily insert-injection-molded and of which an outer surface is surrounded with an insulating material; and flanges which are simultaneously insert-injection-molded with the bus bar assembly to be formed to protrude from an outer circumferential surface of the bus bar assembly at intervals when the bus bar assembly is secondarily insert-injection-molded.

A first U-shaped part that is bent so as to form a pair of opposite surfaces facing each other, and a second U-shaped part that is bent so as to form a pair of opposite surfaces facing each other are provided side by side in a bus bar main body of a neutral conductor bus bar. One of the first pair of opposite surfaces and one of the second pair of opposite surfaces are located in the same plane, and the other of the first pair of opposite surfaces and the other of the second pair of opposite surfaces are located in the same plane. A temperature sensor is retained by being inserted through a gap between the first pair of opposite surfaces and a gap between the second pair of opposite surfaces.

A first U-shaped part that is bent so as to form a pair of opposite surfaces facing each other, and a second U-shaped part that is bent so as to form a pair of opposite surfaces facing each other are provided side by side in a bus bar main body of a neutral conductor bus bar. One of the first pair of opposite surfaces and one of the second pair of opposite surfaces are located in the same plane, and the other of the first pair of opposite surfaces and the other of the second pair of opposite surfaces are located in the same plane. A temperature sensor is retained by being inserted through a gap between the first pair of opposite surfaces and a gap between the second pair of opposite surfaces.

In some examples, a connecting ring may connect to a stator coil. The connecting ring may include at least one linear conductor integrally formed in a ring-like shape. Further, the connecting ring may include a terminal section integrally formed in the linear conductor, the terminal section including a hole configured to receive a wire end of the stator coil inserted into the hole in an insertion direction. In addition, the connecting ring may include a cylindrical protrusion having an opening in communication with the hole. The cylindrical protrusion may protrude away from the hole in the insertion direction. Additionally, the connecting ring may include bends for raising a first portion of the connecting ring including the terminal section in the insertion direction relative to a second portion of the connecting ring. An insulating member may cover the second portion of the connecting ring.

Metal laminate cores can be assembled with laser pin welding through a thickness of a first laminate into a second laminate and successively laser pin welding a plurality of second laminates, ending with a third laminate to form the core stack. The laser pin welds are located within an outer perimeter of one or more of the laminates. Such laminated cores are often utilized in electrical motors, generators, transformers, lighting and other applications. The laser pin welds can be selectively provided under the control of a processor to index about the parts and/or change in intensity or even skip certain parts so as to be able to begin and end cores for some embodiments while also facilitating manual and/or automated stacking/welding embodiments and/or relative rotation of the cores.

A coil is configured with stacked n turns (where n is an integer of 2 or more) of spirally wound conductive wire having a rectangular cross-section. A k-th turn (where k is an integer and 1≤k≤n) of the coil has at least a straight portion and a corner portion extending from an end part of the straight portion. On an outer peripheral surface of the corner portion, there are formed at least a first bent portion bent toward an inner peripheral side and a second bent portion bent toward the outer peripheral side, and curvature C1 of the first bent portion is different from curvature C2 of second bent portion.

A stator for a rotary electric machine of an embodiment includes: a dividing core including a yoke portion and a teeth portion protruding in an inner peripheral direction from the yoke portion; bobbins that are made of an insulating material and are arranged on both ends in an axial direction of the dividing core; a coil that is wound around the bobbin; and insulating papers that are arranged along an inner peripheral surface of the yoke portion and a side surface of the teeth portion and insulate the coil and the dividing core from each other between both the bobbins, and each of the bobbins is formed with a groove into which an axial end of the insulating paper is inserted, and the groove is configured such that a width dimension of a part along the inner peripheral surface of the yoke portion is larger than a width dimension of a part along the side surface of the teeth portion.