JP2014212665A - Armature of dynamo-electric machine, dynamo-electric machine, and method of manufacturing armature of dynamo-electric machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an armature of a dynamo-electric machine which allows for enhancement in the space factor even with a small size, and to provide a dynamo-electric machine, and a method of manufacturing the armature of a dynamo-electric machine.SOLUTION: An armature 10 includes an iron core 1 formed by annularly arranging a plurality of split iron cores 3, each having a split yoke 32 and a tooth 31 extending therefrom, and a coil 2 disposed across the plurality of teeth 31 of the iron core 1 on the inside of the slot 5 thereof. One split iron core 3 has a first tooth 31a and a second tooth 32b extending from both ends of the split yoke 32 in the circumferential direction. First tooth 31a of one of two adjacent split iron cores 3 and a first tooth attachment part 32a of the split yoke, and second tooth 31b of the other split iron core 3, and a second tooth attachment part 32b of the split yoke 32, are superposed in the axial direction of the iron core 1.

Description

  The present invention relates to an armature for a rotating electrical machine, a rotating electrical machine, and a method for manufacturing an armature for a rotating electrical machine, and in particular, an armature, a rotating electrical machine, and a rotating electrical machine in which a coil is wound across a plurality of tooth portions. The present invention relates to an armature manufacturing method.

Some armatures such as a stator and a rotor of a rotating electric machine have an exciting coil wound around a plurality of magnetic poles and housed in a slot of an iron core.
The split iron core includes an arc-shaped yoke portion, a magnetic pole tooth constituent portion provided at both ends of the yoke portion, and a slot surrounded by the yoke portion and the magnetic pole tooth constituent portion. Each of which is formed of a magnetic tooth component at one end and a magnetic tooth component at the other end of the other divided iron core, each having an insulating member provided in the slot, and a coil disposed in the slot provided with the insulating member. For example, Patent Literature 1 is disclosed as an armature in which another divided iron core is arranged between individual divided iron cores.
In the armature according to this document, an exciting coil is wound across a plurality of magnetic poles and is housed in a slot of an iron core.

Japanese Patent No. 5042253

In recent years, there has been a demand for a rotating electrical machine to improve the performance of the rotating electrical machine by increasing the magnetic field generated by the exciting coil without increasing the size of the armature in order to reduce the size and performance.
One method for increasing the magnetic field of the armature is to improve the coil space factor in the slot portion of the iron core.
In the armature described in Patent Document 1, since the split iron core forms a single slot portion, the assembling property of the insulating member and the winding property of the coil are good, and the coil space factor can be improved.
However, each of the divided iron cores constituting the iron core is formed by dividing each tooth portion of the iron core into two symmetrically in the axial direction of the iron core.
In the case of a small rotating electrical machine, the width of the teeth portion in the circumferential direction of the iron core is narrow.
Since the width is further reduced by dividing this, there is a problem that such a configuration cannot be adopted in terms of manufacturing technology.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and relates to an armature for a rotating electrical machine, a rotating electrical machine, and a method for manufacturing an armature for a rotating electrical machine that can improve the space factor even with a small size. For the purpose of provision.

The armature of the rotating electrical machine according to this invention is
A split yoke part and a plurality of split iron cores having teeth extending from the split yoke part are arranged in an annular shape, and the inner side of the slot part of the iron core is arranged across the plurality of tooth parts of the iron core. An armature of a rotating electrical machine comprising a coil provided,
One divided iron core has a first tooth portion extending from one end portion in the circumferential direction of the divided yoke portion and a second tooth portion extending from the other end portion,
The first teeth mounting portion of one of the first teeth portion and the split yoke portion of two adjacent split iron cores;
The other second tooth portion and the second tooth attachment portions of the split yoke portion overlap each other in the axial direction of the iron core.

The armature of the rotating electrical machine according to the present invention is
A split yoke part and a plurality of split iron cores having teeth extending from the split yoke part are arranged in an annular shape, and the inner side of the slot part of the iron core is arranged across the plurality of tooth parts of the iron core. An armature of a rotating electrical machine comprising a coil provided,
One divided iron core has a third tooth portion extending from one end portion in the circumferential direction of the divided yoke portion, a fourth tooth portion, and a fifth tooth portion extending from the other end portion,
The fifth teeth mounting portion of one of the adjacent five split iron cores and the fifth yoke portion of the split yoke portion,
It is sandwiched in the axial direction of the iron core between the third tooth attachment portion of the other third tooth portion and the split yoke portion and the fourth tooth attachment portion of the other fourth tooth portion and the split yoke portion. is there.

  A rotating electrical machine according to the present invention includes the armature described above and a rotor.

In addition, the manufacturing method of the armature of the rotating electrical machine according to the present invention,
A split yoke part and a plurality of split iron cores having teeth extending from the split yoke part are arranged in an annular shape, and the inner side of the slot part of the iron core is arranged across the plurality of tooth parts of the iron core. A method of manufacturing an armature of a rotating electrical machine comprising a coil provided,
Laminating multiple and multiple shaped split core pieces made of magnetic plates,
A first step of forming a split iron core having a first tooth portion extending from one end portion in the circumferential direction of the split yoke portion and a second tooth portion extending from the other end portion;
A second step of attaching a first insulating member to each slot portion of each divided iron core;
A third step of linearly positioning and setting a plurality of divided iron cores;
A fourth step of forming a coil by winding or inserting an electric wire into each slot from the slot opening of each positioned divided core;
A fifth step of attaching the second insulating member to the slot opening of each split iron core on which the coil is formed;
A sixth step of forming a coil protruding from an end of a predetermined split iron core into a predetermined shape;
Each divided iron core in a ring shape, one first tooth portion of two adjacent divided iron cores and a first tooth attaching portion of a divided yoke portion;
A seventh step of rounding the other second teeth portion and the second tooth attachment portions of the split yoke portion so as to overlap in the axial direction of the iron core;
An eighth step of forming the coil protruding from the end of the split core into the shape of the coil end;
And a ninth step of joining the connecting portions of the split iron cores.

In addition, the manufacturing method of the armature of the rotating electrical machine according to the present invention,
A split yoke part and a plurality of split iron cores having teeth extending from the split yoke part are arranged in an annular shape, and the inner side of the slot part of the iron core is arranged across the plurality of tooth parts of the iron core. A method of manufacturing an armature of a rotating electrical machine comprising a coil provided,
A first step of forming a split iron core having a third tooth portion and a fourth tooth portion extending from one end portion in the circumferential direction of the split yoke portion and a fifth tooth portion extending from the other end portion;
A second step of attaching a first insulating member to each slot portion of each divided iron core;
A third step of linearly positioning and setting a plurality of divided iron cores;
A fourth step of forming a coil by winding or inserting an electric wire into each slot from the slot opening of each positioned divided core;
A fifth step of attaching the second insulating member to the slot opening of each split iron core on which the coil is formed;
A sixth step of forming a coil protruding from an end of a predetermined split iron core into a predetermined shape;
Each of the split iron cores is annular, and the fifth tooth mounting portion of one of the two adjacent split cores and the fifth tooth mounting portion of the split yoke portion are the other third tooth portion and the third tooth mounting portion of the split yoke portion. A seventh step of rounding so as to be sandwiched in the axial direction of the iron core between the other fourth tooth portion and the fourth tooth mounting portion of the split yoke portion;
An eighth step of forming the coil protruding from the end of the split core into the shape of the coil end;
And a ninth step of joining the connecting portions of the split iron cores.

According to the armature of the rotating electrical machine according to the present invention, the rotating electrical machine,
An armature having a small coil remainder at the coil end portion protruding in the axial direction of the rotating electrical machine from the end portion of the split iron core and having a high coil space factor in the slot portion of the iron core can be obtained.
In addition, since the tooth portion is divided perpendicularly to the axial direction of the armature, there is no restriction on the circumferential width of the tooth portion after the division, and therefore it can be applied to a small armature.

  Further, according to the armature and the rotating electrical machine of the rotating electrical machine according to the present invention, the axial positioning of the iron core between the adjacent divided cores can be performed accurately.

Moreover, according to the manufacturing method of the armature of the rotating electrical machine according to the present invention,
The coil end portion that protrudes from the end of the split iron core has little coil remainder, and an armature with a high coil space factor in the slot of the iron core can be obtained, and the teeth portion is perpendicular to the axial direction of the armature By dividing, since there is no restriction on the width in the circumferential direction of the iron core of the divided tooth portion, it can be applied to a small armature.
Moreover, the positioning accuracy of the axial direction of an iron core can be improved by providing three teeth parts divided | segmented into one division | segmentation iron core, and fitting with an adjacent division | segmentation iron core.

It is a front schematic diagram of the rotary electric machine according to Embodiment 1 of the present invention. It is a front view of the iron core of the armature of the rotary electric machine according to Embodiment 1 of the present invention. It is a perspective view of the division | segmentation iron core which concerns on Embodiment 1 of this invention. It is a perspective view of the insulating member which concerns on Embodiment 1 of this invention. It is a flowchart which shows the manufacturing process of the armature of the rotary electric machine which concerns on Embodiment 1 of this invention. It is a figure explaining the 1st winding system of the coil concerning Embodiment 1 of this invention. It is a figure explaining the 2nd winding system of the coil concerning Embodiment 1 of this invention. It is a figure which shows the state which arranged the division | segmentation iron core which comprises the iron core which concerns on Embodiment 1 of this invention in linear form. It is a figure which shows the state in the middle of forming the some division | segmentation iron core 3 which concerns on Embodiment 1 of this invention in cyclic | annular form. It is a perspective view of the division | segmentation iron core which concerns on Embodiment 2 of this invention. It is a perspective view of the division | segmentation iron core which concerns on Embodiment 3 of this invention. It is a front view of the iron core of the armature of the rotary electric machine which concerns on Embodiment 4 of this invention. It is a front schematic diagram of the armature of the rotary electric machine which concerns on Embodiment 4 of this invention.

Embodiment 1 FIG.
Hereinafter, an armature for a rotating electrical machine, a rotating electrical machine, and a method for manufacturing the armature for a rotating electrical machine according to Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic front view of the rotating electrical machine 100.
FIG. 2 is a front view of the iron core 1 constituting the rotating electrical machine 100.
As shown in FIGS. 1 and 2, the rotating electrical machine 100 includes an armature 10 that is a stator and a rotor 20 having a shaft.
The armature 10 includes an iron core 1 formed of a plurality of divided iron cores 3, a coil 2 wound over a plurality of teeth portions 31 of the iron core 1, and an insulating member that retains insulation between the iron core 1 and the coils 2. 4 and.

The insulating member 4 includes a first insulating member serving as a slot cell and a second insulating member serving as a wedge that closes the slot opening, which will be described in detail later.
As shown in FIG. 2, the iron core 1 is formed by arranging the divided iron cores 3 in an annular shape.
The split iron core 3 includes a tooth part 31 and a split yoke part 32, and the tooth part 31 extends from the circumferential end of the split yoke part 32 toward the radial center of the iron core 1.
Actually, the tooth portion 31 is divided into two perpendicular to the axial direction of the iron core 1, and details will be described later.

A portion surrounded by the divided yoke portion 32 and the tooth portion 31 is a slot portion 5 in which the coil 2 is mounted.
Further, the tip end portion of the tooth portion 31 in the radial direction of the iron core 1 (hereinafter simply referred to as “inner side”) is not in contact with the adjacent tooth portion 31 and is spaced apart from each other by a predetermined distance to form the slot opening 7. doing.

FIG. 3 is a perspective view of the split iron core 3 on which the insulating member 4 is mounted.
The split iron core 3 is configured such that two tooth portions 31 a (first tooth portions) and tooth portions 31 b (second tooth portions) extend from the circumferential end of the split yoke portion 32 to the inside of the iron core 1. .
As shown in FIG. 3, on the left side when viewed from the inside of the iron core 1, a tooth part 31 a and a tooth attachment part 32 a (first tooth attachment part) of the split yoke part 32 to which the tooth part 31 a is connected. The tooth part 31b and the tooth attachment part 32b (second tooth attachment part) of the divided yoke part 32 to which the tooth part 31b is connected are provided on the right side.
Under the teeth portion 31a and the teeth attachment portion 32a, the teeth portion 31b and the teeth attachment portion 32b of the divided iron core 3 disposed on the left side of the divided iron core 3 overlap each other.
Similarly, the teeth part 31a and the teeth attaching part 32a of the divided iron core 3 arranged on the right side of the divided iron core 3 overlap the upper sides of the tooth part 31b and the tooth attaching part 32b.
Thus, the tooth part 31 of the divided iron core 3 is divided into two perpendicular to the axial direction of the iron core 1.

FIG. 4A is a perspective view of the first insulating member 41 set in the slot portion 5 of the iron core 1.
FIG. 4B is a perspective view of the second insulating member 42 set in the slot opening 7 of the slot portion 5 of the iron core 1.
FIG. 4C is a diagram illustrating another example of the first insulating member.
As shown in FIG. 4A, the U-shaped film-shaped slot cell as the first insulating member 41 is mounted in the slot portion 5 from the axial direction of the iron core 1, and the coil 2 is mounted in the slot portion 5. The second insulating member 42 is attached to electrically insulate the coil 2 from the iron core 1 and close the slot opening 7 to prevent the coil from protruding.
The first insulating member 41 shown in FIG. 4A includes locking portions 41a that lock the insulating member 41 to the end surface of the iron core 1 at both ends in the axial direction. As shown in FIG. 5, there is no problem in insulation even if the locking portion 41a is not provided.

Next, a method for manufacturing the armature 10 of the rotating electrical machine 100 will be described.
FIG. 5 is a flowchart showing manufacturing steps of the armature 10 of the rotary electric machine 100 according to Embodiment 1 of the present invention.
As shown in FIG. 5, in a 1st process, the division | segmentation iron core is formed by laminating | stacking the division | segmentation iron core piece of the magnetic plate punched out from the silicon steel plate.
First, the teeth part 31b and the divided yoke part 32 (including the tooth attachment part 32b) are stacked to form the lower half of the divided iron core 3 shown in FIG. 3, and then the teeth part 31a and the divided yoke part 32 ( The whole of the divided iron core 3 is formed by laminating the teeth attaching portion 32a).

In the second step, a first insulating member to be a U-shaped slot cell is attached to the axial slot portion 5 of each divided core 3.
In the third step, each divided iron core 3 is positioned and set at a predetermined position on the mounting table.
In the fourth step, the electric wire is wound, and the coil 2 is formed by winding the electric wire between the slot portions 5 of the divided core 3 that is positioned and set on the mounting table.

A winding method for installing a coil on a split iron core will be described.
FIG. 6 is a diagram illustrating a first winding method in which the coil 2 is installed on the split iron core 3.
In the first winding method, first, as shown in FIG. 6A, the electric wire is wound around the winding frame 16 to form the coil 21.
Next, as shown in FIG. 6B, the coil 21 formed on the winding frame 16 is dropped through the slot opening 7 into the slot portions 5 of the plurality of divided cores 3 set on the mounting table, and divided. In this method, the coil 2 is installed on the iron core 3.

In the present embodiment, the coil 2 installed in the slot portion 5 of the split iron core 3 uses a fixed winding frame 16, and the peripheral length of the coil 2 is constant. When winding on the winding frame, the coil circumference may be adjusted by changing the width and length of the winding frame.
By doing so, when the coil 1 is attached to the iron core 1, the coil that becomes the inner peripheral layer is shortened, and the coil that becomes the outer peripheral layer is lengthened, whereby the coil end portion can be arranged and further miniaturized.
FIG. 7 is a diagram illustrating a second winding method in which the coil 2 is installed on the split iron core 3.
In the second winding method, as shown in FIG. 7, a wire 18 is wound by a winding machine 19 from a slot opening 7 of a split iron core 3 set on a mounting table using a former 18 which is a coil guide. This is a former winding method in which the coil 2 is installed.

FIG. 8 is a diagram showing the mounting positions of the coils 2 in a state where the divided cores 3 constituting the iron core 1 are linearly arranged.
The coil 2 installed in the slot portion 5 of the divided iron core 3 is accommodated in a position indicated by a solid line at the top and bottom in the drawing.
In this example, two types of large and small coils are used, and the large coil 2 a is accommodated in the slot portion 5 across six teeth portions 31.
Further, the small coil 2b straddles four teeth portions 31.
The split cores 3X at both ends are set on the mounting table with a space S corresponding to one of the split cores 3.

Next, in the fifth step, a second insulating member 42 that is a wedge is attached to the slot opening 7 of the split core 3.
In the present embodiment, the first insulating member 41 serving as a slot cell provided in the slot portion 5 of the split iron core 3 and the second insulating member 42 serving as a wedge provided in the slot opening 7 both have film-like insulation. Although a member is used, a resin molded product may be used.

Next, in the sixth step, the coil 2 protruding from the end of the split iron core 3 is formed in a predetermined shape, and interference when winding the coils 2 of different phases is suppressed.
Next, in the seventh step, the divided iron core 3 is rounded into an annular shape.
FIG. 9 is a diagram showing a state in the middle of forming a plurality of divided cores 3 arranged in a straight line as shown in FIG.
When a plurality of divided iron cores 3 are arranged in a straight line, the portions where one space S is left between the divided iron cores 3X at both ends and the second divided iron core 3 from the end are opposite to each other. All the split iron cores 3 are rounded so that the split iron core 3X at the end of the side is inserted.
By doing so, the armature 10 can be formed in an annular shape while the coil 2 straddling the coupling portion is also housed in the slot portion 5.

Next, in the eighth step, the coil end portion that protrudes from the end portion in the axial direction of the split core 3 that is rounded into an annular shape is formed into a predetermined shape.
Next, in the ninth step, the joint portion of the split iron core 3 is joined.
In this way, the first to ninth steps are sequentially performed, and the armature 10 of the rotating electrical machine 100 is completed.

According to the armature for a rotating electrical machine, the rotating electrical machine, and the method for manufacturing an armature for a rotating electrical machine according to the first embodiment of the present invention, the coil end portion protruding from the end of the split core 3 in the axial direction of the rotating electrical machine. An armature having a small coil remainder and a high coil space factor in the slot portion of the iron core can be obtained.
In addition, since the tooth portion is divided perpendicularly to the axial direction of the armature, there is no restriction on the circumferential width of the tooth portion after the division, and therefore it can be applied to a small armature.

Embodiment 2. FIG.
Hereinafter, an armature for a rotating electrical machine, a rotating electrical machine, and a method for manufacturing the armature for a rotating electrical machine according to a second embodiment of the present invention will be described with reference to the drawings, focusing on the differences from the first embodiment.
FIG. 10 is a perspective view of the split iron core 203 fitted with the insulating member 4 according to the second embodiment of the present invention.
As shown in FIG. 10, the split iron core 203 has three teeth portions.
When the divided iron core 203 is viewed in the X direction, the left side has a tooth part 31c (third tooth part) and a tooth part 31d (fourth tooth part) obtained by dividing the tooth part 31 into three perpendicular to the axial direction of the iron core. On the right side, a tooth portion 31e is provided.
Between the tooth part 31c and the tooth part 31d, the tooth part 31e of the split iron core 203 disposed on the left side of the split iron core 203 is sandwiched and overlapped.
Similarly, the teeth portion 31c of the split iron core 203 disposed on the right side of the split iron core 203 overlaps the upper side of the tooth portion 31e, and the tooth portion 31d overlaps the lower side.
Each tooth attachment portion is formed in the split yoke portion so as to extend to each tooth portion as in the first embodiment.

  As described above, according to the split iron core 203 according to the second embodiment of the present invention, when the adjacent split iron cores 203 are coupled to each other, the tooth attachment portions and the tooth portions 31c to 31d on both end surfaces in the circumferential direction of the split yoke portion 232 are combined. Since the concavo-convex portion constituted by is in the same position on the end surface of the opposed split iron core 203, it can be fitted together to exhibit an accurate positioning function in the axial direction of the iron core.

Embodiment 3 FIG.
Hereinafter, an armature for a rotating electrical machine, a rotating electrical machine, and a method for manufacturing the armature for a rotating electrical machine according to a third embodiment of the present invention will be described with reference to the drawings, centering on differences from the first and second embodiments.
FIG. 11 is a perspective view of a split iron core 303 fitted with an insulating member 4 according to Embodiment 3 of the present invention.
As shown in FIG. 11, the split iron core 303 includes a concave portion 33 a and a convex portion 33 b as positioning portions formed in the axial direction of the iron core on the right end surface in the circumferential direction.
Further, the left end surface is provided with a concave portion and a convex portion having a structure in which these concave and convex portions are inverted.
When adjacent divided iron cores 303 are coupled to each other, the concave portions and the convex portions are engaged with each other, and each of the divided iron cores 303 is positioned in the radial direction of the iron core.
According to the split core 303 according to the third embodiment of the present invention, in addition to the axial positioning of the core, each split core 303 can be accurately positioned in the radial direction.

Embodiment 4 FIG.
Hereinafter, an armature for a rotating electrical machine, a rotating electrical machine, and a method for manufacturing the armature for a rotating electrical machine according to a fourth embodiment of the present invention will be described with reference to the drawings, focusing on differences from the first embodiment.
FIG. 12 is a front view of the armature iron core 401.
FIG. 13 is a schematic front view of the armature 410 of the rotating electric machine.
As shown in FIG. 12, the iron core 401 is formed by arranging the divided iron cores 403 in an annular shape, and a tooth portion 431 extends from the outer peripheral surface of the divided yoke portion 432 toward the radially outer side of the iron core 401. ing.
In the first embodiment, the tooth portion 31 extends toward the center of the iron core, whereas in the present embodiment, the tooth portion 31 faces outward.

The divided iron core 403 includes teeth portions 431 at both ends in the circumferential direction of the divided yoke portion 432, and the teeth portions 431 are divided perpendicularly to the axial direction of the iron core 401.
A portion surrounded by the divided yoke portion 432 and the tooth portion 431 is a slot portion 405.
Further, the tip portion of the tooth portion 431 is not in contact with the tip portion of the adjacent tooth portion 431, and is separated from the tip portion of the adjacent tooth portion 431 by a predetermined distance to form a slot opening 407.

FIG. 13 is a schematic front view of an armature 410 of a rotary electric machine according to Embodiment 4 of the present invention.
The armature 410 of the rotating electrical machine according to the present embodiment is the same as that of the rotating electrical machine 100 according to the first embodiment except that the tooth portion 431 of the split core extends from the split yoke portion 432 to the radially outer side of the iron core 401. It is the same as the armature 10 and has the same effect.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

1,401 iron core, 2,21 coil, 2a large coil, 2b small coil,
3,203,303,403 Divided iron core, 31, 31a to 31e, 431 Teeth portion, 32, 232, 432 Divided yoke portion, 33a Recessed portion, 33b Convex portion, 4, Insulating member, 5,405 Slot portion, 10,410 Electric Child, 16 reel, 18 former,
19 Winding machine, 20 Rotor, 25 Electric wire, 41, 42 Insulating member, 41a Locking part,
100 Rotating electrical machine, 7,407 Slot opening.

Claims (16)

An iron core formed by annularly arranging a plurality of divided iron cores having a divided yoke portion and teeth portions extending from the divided yoke portion, and a plurality of the tooth portions of the iron core inside the slot portion of the iron core An armature of a rotating electrical machine comprising a coil disposed across
One of the divided cores has a first tooth portion extending from one end portion in the circumferential direction of the divided yoke portion and a second tooth portion extending from the other end portion,
The first teeth portion of one of the two adjacent divided iron cores and the first teeth attaching portion of the divided yoke portion;
The armature of a rotating electrical machine in which the second tooth portion on the other side and the second tooth attachment portions of the split yoke portion overlap each other in the axial direction of the iron core. An iron core formed by annularly arranging a plurality of divided iron cores having a divided yoke portion and teeth portions extending from the divided yoke portion, and a plurality of the tooth portions of the iron core inside the slot portion of the iron core An armature of a rotating electrical machine comprising a coil disposed across
One of the divided iron cores has a third tooth portion extending from one end portion in the circumferential direction of the divided yoke portion, a fourth tooth portion, and a fifth tooth portion extending from the other end portion,
The fifth teeth attaching part of one of the fifth teeth part and the dividing yoke part of the adjacent two divided iron cores,
It is sandwiched in the axial direction of the iron core between the third tooth mounting portion of the other third tooth portion and the split yoke portion and the fourth tooth mounting portion of the other fourth tooth portion and the split yoke portion. The armature of the rotating electric machine. The armature of a rotating electrical machine according to claim 1 or 2, wherein each of the divided yoke portions of the divided iron core has a positioning portion on each end surface in the circumferential direction for positioning in the radial direction between the adjacent divided iron cores. . The armature for a rotating electrical machine according to claim 3, wherein the positioning portion is a concave portion or a convex portion provided in the axial direction of the divided core. The armature for a rotating electrical machine according to any one of claims 1 to 4, wherein the tooth portion extends from the divided yoke portion toward a center side in a radial direction of the iron core. The armature for a rotating electrical machine according to any one of claims 1 to 4, wherein the teeth portion extends from a divided yoke portion toward an outer side in a radial direction of the iron core. The armature for a rotating electrical machine according to any one of claims 1 to 6, wherein the coil has the same peripheral length in an inner peripheral layer and an outer peripheral layer when mounted on the iron core. The armature for a rotating electrical machine according to any one of claims 1 to 7, wherein the coil has a longer outer peripheral layer in an inner peripheral layer and an outer peripheral layer when the coil is attached to the iron core. The said slot part was provided with the U-shaped 1st insulating member along the said teeth part and the said division | segmentation yoke part, and the 2nd insulating member which plugs up the slot opening part of the radial direction of the said slot part. The armature of a rotating electrical machine according to any one of items 8. The armature for a rotating electrical machine according to claim 9, wherein the first insulating member and the second insulating member are film-like insulating materials. The armature for a rotating electric machine according to claim 9, wherein the first insulating member and the second insulating member are resin insulating materials. The rotary electric machine provided with the armature of the rotary electric machine of any one of Claims 1-11. An iron core formed by annularly arranging a plurality of divided iron cores having a divided yoke portion and teeth portions extending from the divided yoke portion, and a plurality of the teeth of the iron core inside the slot portion of the iron core A method of manufacturing an armature of a rotating electrical machine comprising a coil disposed across a portion,
Laminating multiple and multiple shaped split core pieces made of magnetic plates,
A first step of forming the split iron core having a first tooth portion extending from one end portion in the circumferential direction of the split yoke portion and a second tooth portion extending from the other end portion;
A second step of attaching a first insulating member to the slot portion of each of the divided cores;
A third step of linearly positioning and setting the plurality of divided iron cores;
A fourth step of forming the coil by winding or inserting an electric wire into each slot from the slot opening of each positioned divided core;
A fifth step of attaching a second insulating member to the slot opening of each of the split iron cores on which the coils are formed;
A sixth step of forming the coil from the end of the predetermined split core into a predetermined shape;
Each of the divided iron cores in an annular shape, one of the two adjacent divided iron cores, one of the first teeth portion and the first tooth attaching portion of the divided yoke portion;
A seventh step of rounding the other second tooth portion and the second tooth attachment portions of the split yoke portion so as to overlap in the axial direction of the iron core;
An eighth step of forming the coil protruding from the end of the split core into the shape of a coil end;
A method of manufacturing an armature for a rotating electrical machine, comprising: a ninth step of joining the joint portions of the divided cores. An iron core formed by annularly arranging a plurality of divided iron cores having a divided yoke portion and teeth portions extending from the divided yoke portion, and a plurality of the tooth portions of the iron core inside the slot portion of the iron core A method of manufacturing an armature of a rotating electrical machine comprising a coil disposed across
A first step of forming the split iron core having a third tooth portion and a fourth tooth portion extending from one end portion in the circumferential direction of the split yoke portion and a fifth tooth portion extending from the other end portion;
A second step of attaching a first insulating member to the slot portion of each of the divided cores;
A third step of linearly positioning and setting the plurality of divided iron cores;
A fourth step of forming the coil by winding or inserting an electric wire into each slot from the slot opening of each positioned divided core;
A fifth step of attaching a second insulating member to the slot opening of each of the split iron cores on which the coils are formed;
A sixth step of forming the coil from the end of the predetermined split core into a predetermined shape;
Each of the divided iron cores is annular, and the fifth teeth attaching part of one of the two adjacent divided iron cores and the fifth tooth attaching part of the dividing yoke part are the third of the other third tooth part and the dividing yoke part. A seventh step of rounding the teeth mounting portion and the fourth tooth mounting portion of the other fourth tooth portion and the split yoke portion so as to be sandwiched in the axial direction of the iron core;
An eighth step of forming the coil protruding from the end of the split core into the shape of a coil end;
A method of manufacturing an armature for a rotating electrical machine, comprising: a ninth step of joining the joint portions of the divided cores. In the fourth step, the coil is formed by winding an electric wire around a winding frame, and the coil formed on the winding frame is inserted from the slot opening of the divided core. The manufacturing method of the armature of the described rotary electric machine. The method of manufacturing an armature for a rotating electrical machine according to claim 13 or 14, wherein the fourth step uses a former that is a coil guide to wind an electric wire into the slot portion of the divided core.

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