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Stator of rotating electrical machine, method of manufacturing same, and apparatus for manufacturing same

A technology of a rotating electrical machine and a manufacturing method, applied in the field of manufacturing devices, can solve the problems of easily damaged insulation performance, a large amount of heat input, etc., and achieve the effect of simple and reliable configuration

Inactive Publication Date: 2013-12-18
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, sheets with high insulating properties generally have high heat resistance, so a large amount of heat input is required to easily fix the insulating paper by welding.
However, when the heat input is increased, there is a problem that the insulating performance of the insulating paper or the insulating coating (enamel) of the coil is easily damaged
Therefore, there is also a problem of simply fixing the insulating paper

Method used

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  • Stator of rotating electrical machine, method of manufacturing same, and apparatus for manufacturing same
  • Stator of rotating electrical machine, method of manufacturing same, and apparatus for manufacturing same
  • Stator of rotating electrical machine, method of manufacturing same, and apparatus for manufacturing same

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no. 1 approach ）

[0066]Next, a first embodiment of a stator for a rotating electric machine, a manufacturing method thereof, and a manufacturing apparatus thereof according to the present invention will be described with reference to the drawings.

[0067] Here, the coil group assembly process of assembling two adjacent cassette coils of the same phase to form a coil group, and the outer peripheral winding of the adjacent portion where the cassette coils in the coil group are close to each other will be described in detail in the order of each process. Insulating paper winding process of insulating paper cut into a predetermined shape, insulating paper fixing process of fixing the end of the wound insulating paper, and winding of the coil group after fixing the end of the insulating paper and binding the stator A notch insertion process in which the stator core is overlapped in the circumferential direction and inserted into the notch of the stator core from the axial direction of the stator co...

no. 2 approach ）

[0131] Next, a second embodiment of a stator for a rotating electrical machine, a manufacturing method thereof, and a manufacturing apparatus thereof according to the present invention will be described with reference to the drawings.

[0132] Figure 12 It shows the coil cage (only a part is shown) of 2nd Embodiment which arrange|positioned the coil group 3 which fixed and bundled the end part 4P, 5P, 6P of the insulating paper 4, 5, 6 every other group. The second embodiment is different from the first embodiment in that the coil groups 3 bound with the ends 4P, 5P, 6P of the insulating papers 4, 5, 6 are arranged at every other point. The implementation methods are common. Here, differences from the first embodiment will be mainly described, and the same reference numerals as those in the first embodiment will be attached to the parts in common with the first embodiment in the drawings, and descriptions thereof will be appropriately omitted.

[0133] Such as Figure 12 A...

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Abstract

Provided is a method of manufacturing a stator of a rotating electrical machine that is equipped with: distributed-winding cassette coils, each of which has a straight-angled conductor wire wound around; and a stator core comprising slots into which the cassette coils are to be inserted. The method of manufacturing a stator of a rotating electrical machine comprises: an assembled-coil assembling process for assembling a plurality of adjacent in-phase cassette coils to form a set of assembled coils; an insulation paper winding-around process for winding insulation papers cut to be a prescribed shape around the outer circumference of proximity sections where cassette coils of an assembled coil comes in proximity with each other; an insulation paper anchoring process for anchoring end sections of the wound-around insulation papers; and a slot inserting process for superimposing the assembled coils, which are bound together by having the end sections of the insulation papers thereof anchored, upon the stator core in the circumferential direction thereof, and inserting the assembled coils into the slots.

Description

technical field [0001] The present invention relates to a stator of a rotating electric machine, including a cassette coil wound with distributed windings of flat wires, and a stator core having slots for inserting the cassette coil, as well as a manufacturing method and manufacturing device thereof. Background technique [0002] When inserting the distributed winding coil on which the flat wire is wound into the slot of the stator core, there is a position where the coil end is arranged close to the axial end of the stator core. That is, at the coil ends of the distributed winding coils, the next set of other-phase coils adjacent to one set of same-phase coils in the circumferential direction are closely arranged. Here, since there is no potential difference between the coils of the same phase, insulation breakdown does not occur even if the coils are close to each other. However, a potential difference occurs between the coils of the other phase due to a phase difference, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K3/34H02K15/04H02K15/06H02K15/085
CPCH02K3/12H02K15/045H02K15/067Y10T29/53143Y10T29/49009H02K15/105H02K3/38
Inventor 梅原雄司浦野广晓木村英明
Owner TOYOTA JIDOSHA KK
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