摘要:
A plurality of shaped wires, which are obtained by shaping electric wires, are assembled to form a wire assembly 47. The wire assembly 47 is then rolled around a core member 6 with aligning members 7 being inserted into spaces 472 formed between adjacent ones of straight superposed parts 471 of the wire assembly 47.
摘要:
A plurality of shaped wires, which are obtained by shaping electric wires, are assembled to form a wire assembly 47. The wire assembly 47 is then rolled around a core member 6 with aligning members 7 being inserted into spaces 472 formed between adjacent ones of straight superposed parts 471 of the wire assembly 47.
摘要:
A method is provided for manufacturing a stator coil for a rotary electric machine, which is formed by winding up a plurality of phase wires. The method includes a shaping step for shaping a plurality of shaped wire members from electrically conductive wires, an integrating step for integrating the plurality of shaped wire members with each other to form an integrated body, and a winding-up step for winding the integrated body about a core member to form a wound body. At the winding-up step, curve forming is performed by plastically deforming turn portions of the integrated body into a curved shape, during conveyance of feeding the integrated body to the core member.
摘要:
A method is provided for manufacturing a stator coil for a rotary electric machine, which is formed by winding up a plurality of phase wires. The method includes a shaping step for shaping a plurality of shaped wire members from electrically conductive wires, an integrating step for integrating the plurality of shaped wire members with each other to form an integrated body, and a winding-up step for winding the integrated body about a core member to form a wound body. At the winding-up step, curve forming is performed by plastically deforming turn portions of the integrated body into a curved shape, during conveyance of feeding the integrated body to the core member.
摘要:
In manufacturing a stator coil for rotary electric machine having phase windings, plural conductive shaped wire members are integrated mutually to form an integrated body. Each shaped wire member has plural straight portions and plural turn portions alternately connecting adjacent straight portions at each of both ends of each straight portion. The body has plural straight superposed portions each formed by mutually superposing the plural straight portions. A wound-up body has plural straight stack portions The straight portions are fitted to respective fitting grooves of an alignment member, the fitting grooves being formed in the alignment member at intervals each corresponding to the size of a gap between adjacent straight stack portions. The integrated body is wound about a core member together with the alignment member, with the straight portions being fitted to the alignment member to form the wound-up body.
摘要:
A stator includes an annular stator core having a plurality of slots arranged in the circumferential direction at predetermined intervals and a stator coil formed of a plurality of electric conductor wires mounted on the stator core. Each of the electric conductor wires has a plurality of in-slot portions received in the slots of the stator core and a plurality of turn portions that connect, on the outside of the slots, adjacent pairs of the in-slot portions. The stator coil has first and second coil end parts and that respectively protrude axially outward from a pair of axial end faces of the stator core. At each of the coil end parts, the turn portions of the electric conductor wires are stacked in a radial direction of the stator core, and the axial heights h1 of the turn portions are set so as to gradually increase from the radially inside to the radially outside.
摘要:
Disclosed is an apparatus for rolling a substantially planar electric wire by more than one turn into a spiral shape. The apparatus includes an inner pressing member having an outer surface, an intermediate pressing member having radially inner and outer surfaces, and an outer pressing member having an inner surface. The inner and intermediate pressing members together press a first part of the electric wire between the outer surface of the inner pressing member and the inner surface of the intermediate pressing member, thereby plastically deforming the first part to extend along the outer surface of the inner pressing member. The intermediate and outer pressing members together press a second part of the electric wire between the outer surface of the intermediate pressing member and the inner surface of the outer pressing member, thereby plastically deforming the second part to extend along the outer surface of the intermediate pressing member.
摘要:
A method of manufacturing a stator includes the steps of: (1) forming substantially planar electric wires each of which includes in-slot portions to be received in slots of a stator core and turn portions to be located outside the slots to connect adjacent pairs of the in-slot portions; (2) rolling each of the planar electric wires by more than one turn into a spiral shape; (3) forming a stator coil by assembling the rolled electric wires through elastic deformation thereof; and (4) assembling the stator core and the stator coil to form the stator. Further, in the rolling step, each of the planar electric wires is rolled by plastically deforming the turn portions into circumferentially-extending sections each having a predetermined curvature. Furthermore, a curvature ratio of a radially-outermost one of the circumferentially-extending sections is set to be greater than that of a radially-innermost one of the same.
摘要:
The method is for manufacturing a coil assembly of a stator of an electric rotating machine constituted by a plurality of interlaced coil wires each including a plurality of in-slot portions and a plurality of turn portions each of which connects adjacent two of the in-slot portions. The method includes a setting step of setting coil wires such that they are located on a circle and extend in parallel, and a plurality of shaping steps performed repeatedly for interlacing the coil wires into a doughnut shape.
摘要:
A method of manufacturing a stator coil for an electric rotating machine includes the steps of: (1) forming substantially planar electric wires each of which includes in-slot portions to be received in slots of a stator core and turn portions to be located outside the slots to connect adjacent pairs of the in-slot portions; (2) rolling each of the planar electric wires through plastic deformation into a spiral or circular-arc shape; and (3) assembling the rolled electric wires together to form the stator coil. Further, in the rolling step, each of the planar electric wires is rolled by deforming each of the turn portions of the electric wire while restricting movement of at least one of the in-slot portions of the electric wire which is located closer to a rolling start end of the electric wire than the turn portion is.