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Stator for rotating electric machine and manufacturing method thereof

A technology for rotating electrical machines and stators, which is applied in the manufacture of stator/rotor bodies, winding insulation shapes/styles/structures, magnetic circuit shapes/styles/structures, etc., which can solve the problems of increased man-hours and achieve the effect of suppressing the increase of man-hours

Inactive Publication Date: 2018-07-17
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that when bending the joints of the split core and arranging the split core in a ring shape, it is necessary to press the insulating film so that it does not come off from between the coils, resulting in an increase in man-hours during manufacture.

Method used

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  • Stator for rotating electric machine and manufacturing method thereof
  • Stator for rotating electric machine and manufacturing method thereof
  • Stator for rotating electric machine and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0021] figure 1 It is a perspective view showing the state before the stator 1 of the rotating electrical machine according to Embodiment 1 of the present invention is arranged in a ring shape, figure 2 is only figure 1 In the diagram of the tooth section 12, image 3 is only figure 1 In the diagram of the insulator 20, Figure 4 is only figure 1 In the diagram of the membrane, Figure 5 is a perspective view showing a state in which the stator 1 of the rotating electrical machine according to Embodiment 1 of the present invention is arranged in a ring shape, Figure 6 It is an enlarged view showing a main part of the stator 1 of the electric rotating machine according to Embodiment 1 of the present invention.

[0022] Such as figure 1 As shown, the stator 1 of the rotating electric machine according to Embodiment 1 is constituted by connecting a plurality of split cores 10 . Such as figure 2 as well as Figure 6 As shown, the split core 10 is configured to include...

Embodiment approach 2

[0039] Hereinafter, Embodiment 2 of the present invention will be described, but the description of portions (parts) overlapping with Embodiment 1 will be omitted, and the same or corresponding portions as Embodiment 1 will be given the same reference numerals.

[0040] Figure 7 It is an enlarged view of a main part showing a stator of a rotating electric machine according to Embodiment 2 of the present invention.

[0041] Such as Figure 7 As shown, in Embodiment 2, a pentagonal protruding portion protruding toward the center direction is formed at a position where the insulating film 30 overlaps with the joint portion 14 in the radial direction (a position straddling the split cores 10 ). 33. Furthermore, both ends 32 in the circumferential direction of the insulating film 30 are brought into contact with the circumferential surfaces of the protrusions 33 .

[0042] As described above, by forming the protruding portion 33 in a pentagonal shape, each circumferential end p...

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PUM

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Abstract

A rotating electric machine stator is provided with: a plurality of divided cores (10) that are each constituted by a back yoke portion (11) extending in the circumferential direction, a tooth portion (12) projecting from the central portion of the back yoke portion (11) in the central direction, and a tooth end portion (13) located at an end of the tooth portion (12) and are disposed in a ring shape; a pair of insulators (20) that are disposed on both end surfaces of the divided cores (10) in the axial direction; and an insulating film (30) that is mounted on the surface forming a slot (15) between adjacent divided cores (10) and isolates a coil (40) wound around the tooth portion (12) from the divided cores (10). The insulating film (30) has a projection projecting between adjacent coils (40) in the central direction, and the ends (32) of the insulating film (30) in the circumferential direction make contact with the projection.

Description

technical field [0001] The present invention relates to a stator of a rotating electrical machine using an insulating film to electrically insulate a split iron core from coils wound around its teeth, and a method of manufacturing the same. Background technique [0002] In the conventional stator of a rotating electrical machine, an insulating film is placed on the inner diameter side of the split iron core, and a coil is wound thereon to electrically insulate the split iron core and the coil. In addition, the insulating film is cut in the axial direction at the front end of the tooth, bent toward the rear yoke, and inserted between the coils wound on the adjacent teeth to insulate the adjacent coils (for example, , refer to Patent Document 1). [0003] Patent Document 1: International Publication No. 2010 / 100890 [0004] In the stator of the rotating electrical machine described in Patent Document 1, although the insulating film is bent toward the rear yoke and inserted b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/12H02K3/34H02K15/02
CPCH02K3/34
Inventor 池田刚
Owner MITSUBISHI ELECTRIC CORP