Abstract: In a rotary electric machine, each of coils includes coil terminals led out from a coil main body. The coil terminals are connected to bus bars. When a diameter of each of the bus bars is defined as D, a diameter of a cross section of a coil wire is defined as “d”, a Young's modulus of the coil wire is defined as E, a linear expansion coefficient of a material of the bus bars is defined as ?1, a linear expansion coefficient of a material of a stator core is defined as ?2, and an estimated temperature difference between a room temperature and a use environment temperature is defined as ?T, a length L of at least one of the coil terminals from an end on the coil main body side to a connecting portion to the bus bar satisfies the following expression: L?((3?dED(?1??2)?T/10)1/2/10.

Abstract: A stator winding for a rotating electric machine includes: a plurality of lead wires each including a conductor and an insulating film provided on side surfaces of the conductor; and a joining portion configured to join terminal portions of the plurality of lead wires to each other. The plurality of lead wires each includes: a conductor exposure portion provided at a portion of the terminal portion at which the terminal portions of the plurality of lead wires face each other, has the conductor exposed thereat, and has the joining portion connected thereto; and an insulating film remainder portion, provided at a portion of the terminal portion of the lead wire excluding the conductor exposure portion, and has the conductor covered with the insulating film, and a portion of the insulating film in the insulating film remainder portion is provided in a periphery of the joining portion.

Abstract: In a motor stator, terminal wires of a coil are led out respectively from a feed-side and a neutral-side coil end. With three circumferentially adjacent first-, second-, and third-phase coils as one set, the leading end portion and intermediate portion of one of three terminal wires led out from the neutral side are connected to each of the remaining terminal wires. A structure wherein the first- and second-phase terminal wires are connected together in one position, and the second- and third-phase terminal wires are connected together in a different position from the one position, is adopted, thus compacting the size of one wire connection portion.

Abstract: A stator winding for a rotating electric machine includes: a plurality of lead wires each including a conductor and an insulating film provided on side surfaces of the conductor; and a joining portion configured to join terminal portions of the plurality of lead wires to each other. The plurality of lead wires each includes: a conductor exposure portion provided at a portion of the terminal portion at which the terminal portions of the plurality of lead wires face each other, has the conductor exposed thereat, and has the joining portion connected thereto; and an insulating film remainder portion, provided at a portion of the terminal portion of the lead wire excluding the conductor exposure portion, and has the conductor covered with the insulating film, and a portion of the insulating film in the insulating film remainder portion is provided in a periphery of the joining portion.

Abstract: A plurality of bus rings, which are arranged at bus ring maintaining portions, include coil connecting portions, which are protruded in an outer direction in a shaft direction of a stator core with respect to the bus ring maintaining portions, and terminals of coils of a stator are bent in an outer direction in a diameter direction of the stator core in a state where end surfaces of wall portions of bobbins are used as base points, and are connected to the coil connecting portions of the bus rings, and the end surfaces of the wall portions are protruded in an outer direction in a shaft direction of the stator core with respect to end surfaces of the bus rings, and are positioned in an inner direction in a shaft direction of the stator core with respect to end surfaces of the coil connecting portions of the bus rings.

Abstract: A plurality of bus rings, which are arranged at bus ring maintaining portions, include coil connecting portions, which are protruded in an outer direction in a shaft direction of a stator core with respect to the bus ring maintaining portions, and terminals of coils of a stator are bent in an outer direction in a diameter direction of the stator core in a state where end surfaces of wall portions of bobbins are used as base points, and are connected to the coil connecting portions of the bus rings, and the end surfaces of the wall portions are protruded in an outer direction in a shaft direction of the stator core with respect to end surfaces of the bus rings, and are positioned in an inner direction in a shaft direction of the stator core with respect to end surfaces of the coil connecting portions of the bus rings.

Abstract: In a motor stator, terminal wires of a coil are led out respectively from a feed-side and a neutral-side coil end. With three circumferentially adjacent first-, second-, and third-phase coils as one set, the leading end portion and intermediate portion of one of three terminal wires led out from the neutral side are connected to each of the remaining terminal wires. A structure wherein the first- and second-phase terminal wires are connected together in one position, and the second- and third-phase terminal wires are connected together in a different position from the one position, is adopted, thus compacting the size of one wire connection portion.

Abstract: This stator includes: a plurality of divided core units 11a and 11b which respectively have: a plurality of annular divided cores 12a and 12b in each of which a plurality of tooth portions 13 are provided at a predetermined interval on the inner periphery of the corresponding one of annular back yoke portions 14 which are formed as a plurality of divided parts in the axial direction of the rotary electric machine; and a plurality of coils 15 respectively mounted to the tooth portions, wherein the plurality of divided core units are assembled in the axial direction such that the tooth portions thereof are coupled to each other via the annular back yoke portions.

Abstract: In a rotary electric machine, each of coils includes coil terminals led out from a coil main body. The coil terminals are connected to bus bars. When a diameter of each of the bus bars is defined as D, a diameter of a cross section of a coil wire is defined as “d”, a Young's modulus of the coil wire is defined as E, a linear expansion coefficient of a material of the bus bars is defined as ?1, a linear expansion coefficient of a material of a stator core is defined as ?2, and an estimated temperature difference between a room temperature and a use environment temperature is defined as ?T, a length L of at least one of the coil terminals from an end on the coil main body side to a connecting portion to the bus bar satisfies the following expression: L?((3?dED(?1??2)?T/10)1/2/10.

Abstract: In a concentrated winding stator, which has a separated iron core structure, of a rotary electric machine, a length of ear portions 3c of insulating sheets 3, which are protruded between neighboring winding 4, is set as a length by which a creepage distance, which is required for an insulation between the neighboring windings 4, can be secured.

Abstract: This stator includes: a plurality of divided core units 11a and 11b which respectively have: a plurality of annular divided cores 12a and 12b in each of which a plurality of tooth portions 13 are provided at a predetermined interval on the inner periphery of the corresponding one of annular back yoke portions 14 which are formed as a plurality of divided parts in the axial direction of the rotary electric machine; and a plurality of coils 15 respectively mounted to the tooth portions, wherein the plurality of divided core units are assembled in the axial direction such that the tooth portions thereof are coupled to each other via the annular back yoke portions.

Abstract: In a concentrated winding stator, which has a separated iron core structure, of a rotary electric machine, a length of ear portions 3c of insulating sheets 3, which are protruded between neighboring winding 4, is set as a length by which a creepage distance, which is required for an insulation between the neighboring windings 4, can be secured.