Disclosed herein is a motor terminal assembly comprising a terminal case comprising a terminal accommodation portion accommodate a terminal of another component, and a front end portion having a larger horizontal cross-section than a terminal hole so as to be caught by the terminal hole outside a bracket, and a body portion formed beneath the front end portion and having a smaller horizontal cross-section than the terminal hole so as to move in the terminal hole and A part of electrical connection means to be connected to a terminal a busbar terminal, and to be located at inside the terminal case. Consequently, it may be possible to prevent damage to the terminal and more effectively prevent the terminal from being inclined or biased in an initial state in which the terminal is inserted into a terminal hole.

An electric motor includes a connector unit connected to a terminal attached to the end of a winding wire by electric swaging. The terminal includes a tube portion in which the end of the winding wire is inserted and which is formed by electric swaging. The length of the tube portion in a first direction within a plane perpendicular to the direction in which the winding wire is inserted is nearly equal to the length in a second direction perpendicular to the first direction.

A split-core type motor makes work for connecting lead wires of split coils simple and efficient and reduces manufacturing costs and time taken to connect wires is realized. The split-core type motor includes a plurality of split coils formed by winding coils on split cores on which insulating members have been mounted; a stator formed by disposing the plurality of split coils in an annular shape; crimp terminals that connect lead wires of the split coils by being crimped so that the lead wires of the split coils correspond to a u phase, a v phase, and a w phase of a three-phase AC power source, and form terminals corresponding to the u phase, the v phase, and the w phase, respectively; and a resin mold part that covers the coils and the lead wires while power line connecting portions of the crimp terminals are exposed to the outside.

A core segment sub-assembly has a first holding groove, which holds a start part of a coil wire of a three-phase winding, and a second holding groove, which holds an end part of the coil wire of the three-phase winding, at positions on an axial end surface of an annular covering part and shifted in a circumferential direction relative to a tooth covering part, on which the winding is provided. The first holding groove and the second holding groove sandwiches the tooth covering part and are separated more from each other as extending in a radially outward direction. The positions and the directions of the first holding groove and the second holding grooves are matched to the paths of the coil wire wound by a flyer type winding machine. The stator can thus be made suited to a winding process by the flyer type winding machine.

A compressor includes a motor which includes a stator assembly configured to include a stator in which a hollow is formed, a plurality of coils formed by a winding wound on the stator, and an insulator for insulating the stator from the coils, and a rotor inserted into the hollow, configured to rotate about a rotation axis. The rotor includes a plurality of poles, and a curvature radius of an outer circumference of a center part of the poles is different from a curvature radius of an outer circumference of an edge part of the poles. A method for fabricating a motor includes coupling a stator hook formed in a busbar assembly having a plurality of busbars to a hook engaging part formed in the stator assembly having the plurality of coils, and fusing a winding onto a folded plate connected to the plurality of busbars.

A conductor wire insulating film separating method disclosed includes: a preparing step involving preparing rectangular cross-section coil pieces each of which is a conductor wire coated with insulating film and used to provide a stator coil of rotary electric machine; a delivering-in step involving, after the preparing step, delivering coil pieces into a laser separator, with coil pieces aligned such that extremities thereof are adjacent to each other; an applying step involving, after the delivering-in step, continuously applying film removing laser to the extremities of the aligned coil pieces such that the laser is applied to one extremity and then to another extremity, thus removing at least portions of the insulating film from the extremities of the coil pieces; and a delivering-out step involving delivering the coil pieces, from which the at least portions of the insulating film have been removed by the applying step, out of the laser separator.