Abstract: The stator manufacturing method includes a step involving, simultaneously with or after a first slot-housed portion placing step, moving a second slot-housed portion of each pair of slot-housed portions radially outward while unfolding an insulating sheet in a direction intersecting a direction of extension of folded portions of the insulating sheet, thus placing each second slot-housed portion.

Abstract: A stator wherein the lead wire portion includes a root portion connected to the slot housed portion, disposed in a same-phase region which overlaps the coil end portion of the coil of a same phase as seen in the center axis direction, and disposed on an axially inner side with respect to the coil end portion, and a draw-out portion that projects in the center axis direction from a power source portion-side end portion of the root portion toward an axially outer side with respect to the coil end portion in the same-phase region.

Abstract: A stator includes: a stator core; a plurality of coils each including coil end portions protruding from end faces of the stator core facing in a central axis direction and a lead wire portion; and a connecting wire unit that is disposed between outer ends of the coil end portions facing in the central axis direction and the end faces of the stator core in the central axis direction and is connected to the lead wire portions of the coils.

Abstract: A stator that includes an annular stator core having a plurality of slots each having a coil insertion opening that opens in a radial direction, and recesses formed in circumferential side walls and extending in an axial direction; a coil including slot accommodated portions accommodated in the plurality of slots; and a wedge containing a thermoplastic resin and engaged with the recesses so as to close at least a part of the coil insertion opening as viewed in the radial direction of the stator core.

Abstract: A stator of the present invention includes a conductor wire. A portion of the conductor wire disposed adjacent to a coil winding center is connected to a power supply. A portion of the conductor wire disposed outwardly away from the coil winding center is connected to a neutral point.

Abstract: The stator manufacturing method includes a step involving, simultaneously with or after a first slot-housed portion placing step, moving a second slot-housed portion of each pair of slot-housed portions radially outward while unfolding an insulating sheet in a direction intersecting a direction of extension of folded portions of the insulating sheet, thus placing each second slot-housed portion.

Abstract: An insulating member that includes an insulating member body including a first insulating sheet provided in an annular shape to cover a coil that includes a slot-held section and a coil end section, the slot-held section configured to be held in a slot of a stator core, the coil end section configured to protrude from an end surface of the stator core in a rotation axis direction, wherein the first insulating sheet includes a folded-back section that is provided in a portion corresponding to a bent section of the coil and in the portion the first insulating sheet is folded back a plurality of times such that layers of the first insulating sheet are stacked.

Abstract: A stator wherein the lead wire portion includes a root portion connected to the slot housed portion, disposed in a same-phase region which overlaps the coil end portion of the coil of a same phase as seen in the center axis direction, and disposed on an axially inner side with respect to the coil end portion, and a draw-out portion that projects in the center axis direction from a power source portion-side end portion of the root portion toward an axially outer side with respect to the coil end portion in the same-phase region.

Abstract: A stator that includes an annular stator core having a plurality of slots each having a coil insertion opening that opens in a radial direction, and recesses formed in circumferential side walls and extending in an axial direction; a coil including slot accommodated portions accommodated in the plurality of slots; and a wedge containing a thermoplastic resin and engaged with the recesses so as to close at least a part of the coil insertion opening as viewed in the radial direction of the stator core.

Abstract: A stator coil that includes a first coil portion including a pair of first slot-housed portions respectively arranged on an outer side of a first slot of the stator core in a radial direction and on an outer side of a second slot of the stator core in the radial direction; a second coil portion including a pair of second slot-housed portions respectively arranged on an inner side of the first slot in the radial direction and on an inner side of a third slot in the radial direction, the third slot being arranged across the first slot from the second slot in a circumferential direction; and a third coil portion including a pair of third slot-housed portions respectively arranged on an inner side and on an outer side in the radial direction.

Abstract: The present invention was contrived through attention being focused on the following in a prior-art distributed-winding coil: a “solenoid” configuration in which winding wires are to be wound is preserved when initially formed, but this configuration tends to be loosened during subsequent steps, and the initial winding sequence of the winding wires, or the position of the winding wires relative to each other, tends to be disrupted, and accordingly must be prevented, when a certain force is applied and the necessary bending or deformation is induced in coils with distributed winding in which the solenoid configuration is preserved, or when the coils are ultimately inserted into slots.

Abstract: An insulating member that includes an insulating member body including a first insulating sheet provided in an annular shape to cover a coil that includes a slot-held section and a coil end section, the slot-held section configured to be held in a slot of a stator core, the coil end section configured to protrude from an end surface of the stator core in a rotation axis direction, wherein the first insulating sheet includes a folded-back section that is provided in a portion corresponding to a bent section of the coil and in the portion the first insulating sheet is folded back a plurality of times such that layers of the first insulating sheet are stacked.

Abstract: A stator of the present invention includes a conductor wire. A portion of the conductor wire disposed adjacent to a coil winding center is connected to a power supply. A portion of the conductor wire disposed outwardly away from the coil winding center is connected to a neutral point.

Abstract: In each coil (10), between a first radial section formed by a winding-start section (10a) and a second radial section formed by a winding-end section (10b) of a winding (10A), the circumferential lengths of the winding lap sections formed by said winding change in a continuous or stepped manner. For a first coil, the sequences within two slots (22) of the winding constituting the first coil are reversed with respect to one another by a twisted section (10d) between a first coil end (12a) and a second coil end (12b) of the first coil. The first coil and next second coil form a lap winding in which the twisted sections of the first and second coils are three-dimensionally entwined. The lap winding of said twisted sections continues for the third and subsequent coils, and the first coil end and the second coil end of each coil are continuous without spaces at the end surfaces of a core (20).

Abstract: This rotating electrical machine includes a coil. The coil includes a first coil portion formed of a single-layer lap winding coil arranged on radially outer sides of slots, a second coil portion continuously connected to a first connecting wire portion continuously connected to the first coil portion, and formed of a single-layer lap winding coil arranged on radially inner sides of the slots, and a third coil portion group including a plurality of third coil portions each formed of a double-layer lap winding coil.

Abstract: A stator coil that includes a first coil portion including a pair of first slot-housed portions respectively arranged on an outer side of a first slot of the stator core in a radial direction and on an outer side of a second slot of the stator core in the radial direction; a second coil portion including a pair of second slot-housed portions respectively arranged on an inner side of the first slot in the radial direction and on an inner side of a third slot in the radial direction, the third slot being arranged across the first slot from the second slot in a circumferential direction; and a third coil portion including a pair of third slot-housed portions respectively arranged on an inner side and on an outer side in the radial direction.

Abstract: A method for manufacturing a stator that includes attaching a coil portion to slots by pivoting the coil portion about a connecting wire in a state in which a plurality of the coil portions are connected together by the connecting wire for each phase, the coil portions including a first coil portion that includes one first slot-housed portion to be arranged on a radially inner side of a first slot of a stator core and the other first slot-housed portion to be arranged on a radially outer side of a second slot provided at a position spaced away from the first slot in a circumferential direction, the other first slot-housed portion being spaced away from the one first slot-housed portion in the circumferential direction.

Abstract: In each coil (10), between a first radial section formed by a winding-start section (10a) and a second radial section formed by a winding-end section (10b) of a winding (10A), the circumferential lengths of the winding lap sections formed by said winding change in a continuous or stepped manner. For a first coil, the sequences within two slots (22) of the winding constituting the first coil are reversed with respect to one another by a twisted section (10d) between a first coil end (12a) and a second coil end (12b) of the first coil. The first coil and next second coil form a lap winding in which the twisted sections of the first and second coils are three-dimensionally entwined. The lap winding of said twisted sections continues for the third and subsequent coils, and the first coil end and the second coil end of each coil are continuous without spaces at the end surfaces of a core (20).

Abstract: The present invention was contrived through attention being focused on the following in a prior-art distributed-winding coil: a “solenoid” configuration in which winding wires are to be wound is preserved when initially formed, but this configuration tends to be loosened during subsequent steps, and the initial winding sequence of the winding wires, or the position of the winding wires relative to each other, tends to be disrupted, and accordingly must be prevented, when a certain force is applied and the necessary bending or deformation is induced in coils with distributed winding in which the solenoid configuration is preserved, or when the coils are ultimately inserted into slots.

Abstract: A bus bar that can be manufactured easily as a part of an electric motor and, as a result, enables manufacturing the electric motor easily and inexpensively. The bus bar is configured to supply power to a plurality of coils of an electric motor and/or ground the coils in assemblage, in which a plurality of folded portions each of which includes three or a larger odd number of overlapping portions are formed on a conductor material having a predetermined length. The bus bar enables forming an insertion space at a predetermined position of each of the folded portions in which a terminal of each of the coils can be inserted so that each of the terminals is inserted into this insertion space and fixed in order to be electrically and directly fixed to the bus bar.