A stator for a multiphase electric motor includes a plurality of laminates stacked to form a cylindrical stator core having a plurality of longitudinal slots; a plurality of electrical conductors grouped into a plurality of discrete electrical circuits, each of the plurality of the electrical conductors forming a plurality of coils in the slots spaced about the stator core, and each of the coils having a pair of leads; a plurality of bus cables, each of the plurality of bus cables having a mechanical connection to the pluralities of coils at ends of the slots; and wherein one of the leads from each of the coils is electrically connected to one of the plurality of bus cables.

A winding arrangement method for a radial gap-type motor in which a three phase winding wound in a distributed winding form is inserted in slots of a stator includes: a coil forming step that, for each phase, forms a coil wound for each one pole pair; a coil group forming step that, for each phase, forms a first coil group by connecting odd-number-th coils along a direction of rotation via crossover wires, and forms a second coil group by connecting even-number-th coils along the direction of rotation via crossover wires; and a parallel-connecting step that, for each phase, connects the first coil group and the second coil group at one end, to form a current input side lead wire at the connection point, and connects the first coil group and the second coil group at the other end, to form a neutral point at the connection point.

A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.

A motor, may include a rotor having a shaft which has its center on a center axis extending in one direction; a stator which surrounds the rotor in the axial circumference, and includes a plurality of coils; and bus bars connecting coil ends extending from the coils. The bus bars may include a plate shape member bent in a thickness direction, a width direction of the bus bars being identical to an axial direction of the motor. Each of the bus bars may include a main body portion, and a coil end connection portion which extends from the main body portion and grips one of the coil ends at an opening that is open toward one direction within a plane perpendicular to the axial direction.

An electric machine winding assembly including a stator and windings is provided. The stator may define a central axis. The windings may extend from the stator and each may include a pair of conductor ends. Each conductor end may include a minor side and a major side. The windings are arranged with the stator such that each of the major sides are aligned along a circumferential conductor axis relative to the central axis to facilitate welding adjacent conductor ends to one another. Each of the windings may further include two portions defining a U shape. Each of the two portions may include a lower portion, a mid-portion, and an upper portion. One of the mid-portions may include a first bend defining a twist shape to orient the major sides of one of the pair of conductor ends along the circumferential conductor axis.

An apparatus used in terminating and winding coils of a core of a dynamo electric machine. The coils being formed from at least an electric wire and the core having a longitudinal axis. The coils are wound by relatively moving a wire dispenser with respect to a core with relative motions of translation and rotation; at least a stretch of wire extends from the coil; and the stretch of wire is provided with a portion for a termination connection to a termination structure of the core, such as a tang. The method avoids waste cut wire in the apparatus. The core is provided with a groove at an end to receive at least a wire in the path of the wire for the termination of the coils. The apparatus comprises a wire deflector positioned adjacent the end of the core, where the groove is located, in order to intercept and align the wire with the groove. The apparatus can comprise a device for applying torques in two directions on a pulley wheel for feeding wire as a function of the position of the dispenser in the translation and the position of the core in the rotations.

A rotating electric machine includes a pair of electric conductors for forming a coil and a weld. Each of the electric conductors has an end portion with an end surface. The weld is formed between the end portions of the electric conductors at the end surfaces of the end portions. Moreover, the end portions of the electric conductors are arranged so that parts of the end portions of the electric conductors adjoin each other. At least one of the end portions of the electric conductors has at least one slit formed therein to divide the end surface of the end portion into a plurality of sections. The weld is formed to cover, at least, the adjoining parts of the end portions of the electric conductors and the at least one slit.

An insulator of a coil winding component constituting part of a rotary electric machine is resin molded integrally with a divided iron core. A first accommodating groove in which a coil terminal wire can be arranged is formed on an outer end surface of a wiring member of the insulator. A plurality of recesses are formed in a circumferential direction of a stator core on a groove bottom surface of the first accommodating groove. Further, a rib, which supports the coil terminal wire that is arranged in the first accommodating groove, is disposed between the mutually adjacent recesses.

A stator has a field winding, the winding comprising a plurality of axial conductors connected at their ends to form at least one circuit with a number of turns. Each axial conductor, or set of axial conductors having a common voltage, is disposed within an insulated channel member, the insulated channel member being disposed within a stack of laminations. The axial conductors and the tubular insulation members are radially distributed at equal angles.

Provided is a wire connecting structure of coils of a three-phase motor, a wire connecting method and three-phase motor, which is capable of reducing a size of a short circuit terminal for a neutral point. The wire connecting structure is a wire connecting structure of coils which are wound to each salient-pole in a three-phase motor having respective salient-pole of a U phase, a V phase and a W phase, the coils of the salient-poles belonging to any two phases among the U phase, the V phase and the W phase are formed by a single continuous first conducting wire, and the coil of the salient-pole belonging to the rest one phase is formed by a single continuous second conducting wire.