JP2010193678A - Armature for rotary electric machine and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain an armature for a rotary electric machine being capable of shortening a coil peripheral length and improving a coil space factor in a core slot and miniaturizing the rotary electric machine and enhancing the performance of the rotary electric machine. <P>SOLUTION: In the armature for the rotary electric machine, a core is configured by arraying split cores including arcuate yokes: pole ties configuring parts mounted at both ends of the yokes; and the slots surrounded by the yokes and the pole ties configuring parts on a circumference. In the armature for the rotary electric machine, insulating members are mounted in the slots, and coils are disposed among the slots mounting the insulating members for the two split cores. In the armature for the rotary electric machine, other split cores are arranged among the split cores disposing the coils. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an armature used for a rotating electrical machine and a manufacturing method thereof, and more particularly to an armature in which a coil is wound across a plurality of magnetic poles and a manufacturing method thereof.

Some armatures such as a stator and a rotor of a rotating electric machine have an exciting coil wound over a plurality of magnetic poles and housed in a slot of an iron core.
As a stator in which an exciting coil is wound across a plurality of magnetic poles and accommodated in a slot of an iron core, for example, a plurality of protrusions provided to protrude toward the outer periphery on the circumference, and a plurality of continuous There is disclosed a stator including a coil installed across the protrusions and a yoke part attached to an outer peripheral part of a teeth part formed by each protrusion. In this stator, a coil is formed in advance using a winding device and a jig, and is fitted into a slot between teeth portions (see, for example, Patent Document 1).

  Further, an annular winding group formed by arranging a plurality of winding bodies in which a coil is wound around an annular insulating member having a tooth insertion hole, and the winding group are formed. A stator is disclosed that includes a split iron core in which a tooth is inserted into a tooth insertion hole of a winding body and a yoke portion is radially divided. In this stator, teeth of a plurality of divided iron cores are inserted into teeth insertion holes of one winding body. That is, this stator also has an exciting coil wound over a plurality of magnetic poles and housed in a slot of an iron core (see, for example, Patent Document 2).

Japanese Patent No. 3144759 Japanese Patent Laid-Open No. 2005-184887

In recent years, in order to reduce the size and increase the performance of rotating electrical machines, there is a demand for improving the performance of rotating electrical machines by increasing the magnetic field generated by the exciting coil without increasing the dimensions of the armature.
However, the stator which is an armature described in Patent Document 1 is a coil in which a coil is wound elsewhere and inserted into a slot of an iron core. It is wound.
Therefore, the stator in which such a coil is fitted in the slot of the iron core has a portion having a margin in the circumference of the coil, and the end of the iron core is excessively stacked, resulting in a shape having a useless space. The remaining part of the coil end does not contribute to strengthening the magnetic field generated by the exciting coil of the stator.
That is, the stator described in Patent Document 1 has a problem that there is a portion that does not contribute to strengthening the magnetic field at the coil end, and it is difficult to reduce the size and performance of the rotating electrical machine.

  Further, in order to improve the performance of the rotating electric machine, it is necessary to increase the magnetic field of the armature. One way to increase the magnetic field of the armature is to improve the coil space factor in the core slot. However, since the stator which is an armature described in Patent Document 2 uses an annular insulating member for the winding body that forms the coil, there is a limit in improving the coil space factor in the slot of the iron core. After all, there was a problem that it was difficult to reduce the size and performance of the rotating electrical machine.

  The present invention has been made to solve the above-described problems, and its purpose is to shorten the coil circumference and improve the coil space factor in the iron core slot. An object of the present invention is to provide an armature for a rotating electric machine and a method for manufacturing the same.

  The armature of the rotating electrical machine according to the present invention is formed by arranging an even number of divided iron cores on the circumference and provided with magnetic cores extending in the radial direction from the yoke, and each of the iron cores formed. An armature of a rotating electrical machine comprising a coil disposed across a plurality of magnetic teeth of an iron core in a slot of two divided iron cores, wherein the divided iron core has an arc-shaped yoke portion and a yoke portion And a slot surrounded by the yoke portion and the magnetic tooth constituent portion, and the magnetic pole tooth is adjacent to the magnetic pole tooth constituent portion at one end of the adjacent one of the divided iron cores. The split iron core is formed with a magnetic tooth component at the other end, an insulating member is provided in the slot, and another split is provided between each two split iron cores in which the coil is disposed in the slot provided with the insulating member. Iron core is placed The is intended.

  According to another aspect of the present invention, there is provided a method of manufacturing an armature for a rotating electrical machine, comprising: a first step of forming a split core by stacking split core pieces of a magnetic plate; and mounting a first insulating member in a slot of the split core. A second step, a third step of positioning and setting the two divided iron cores on the workpiece, and a fourth step of winding a wire between the slots of the two divided iron cores positioned on the workpiece to form a coil. A fifth step of forming a coil assembly by attaching a second insulating member to the opening of the split iron core on which the coil is formed, and the coil protruding from the end of the split iron core into the shape of the coil end A sixth step of molding, a seventh step of positioning a plurality of coil combinations at predetermined positions, and a split iron core on one side of each coil combination being passed through a coil ring of an adjacent coil combination. And then constraining each coil assembly in a ring Those having an eighth step of attaching a coil combined product number, and a ninth step of bonding the binding portion of the segment core.

  The armature of the rotating electrical machine according to the present invention is formed by arranging an even number of divided iron cores on the circumference and provided with magnetic cores extending in the radial direction from the yoke, and each of the iron cores formed. An armature of a rotating electrical machine comprising a coil disposed across a plurality of magnetic teeth of an iron core in a slot of two divided iron cores, wherein the divided iron core has an arc-shaped yoke portion and a yoke portion And a slot surrounded by the yoke portion and the magnetic tooth constituent portion, and the magnetic pole tooth is adjacent to the magnetic pole tooth constituent portion at one end of the adjacent one of the divided iron cores. The split iron core is formed with a magnetic tooth component at the other end, an insulating member is provided in the slot, and another split is provided between each two split iron cores in which the coil is disposed in the slot provided with the insulating member. Iron core is placed It is are as hereinbefore, is reduced more than the coil at the coil end portion exiting from the segment core end, also a large coil space factor in the core slots, but small in the magnetic field strength is large.

  According to another aspect of the present invention, there is provided a method of manufacturing an armature for a rotating electrical machine, comprising: a first step of forming a split core by stacking split core pieces of a magnetic plate; and mounting a first insulating member in a slot of the split core. A second step, a third step of positioning and setting the two divided iron cores on the workpiece, and a fourth step of winding a wire between the slots of the two divided iron cores positioned on the workpiece to form a coil. A fifth step of forming a coil assembly by attaching a second insulating member to the opening of the split iron core on which the coil is formed, and the coil protruding from the end of the split iron core into the shape of the coil end A sixth step of molding, a seventh step of positioning a plurality of coil combinations at predetermined positions, and a split iron core on one side of each coil combination being passed through a coil ring of an adjacent coil combination. And then constraining each coil assembly in a ring There are provided an eighth step of joining a number of coil assemblies and a ninth step of joining the joined portions of the split cores, and there is little coil remainder at the coil end portion protruding from the end of the split core. Also, it is possible to obtain an armature for a rotating electric machine having a large coil space factor in the slot of the iron core, a small size and a large magnetic field strength.

It is a front schematic diagram of the armature of the rotary electric machine concerning Embodiment 1 of this invention. It is a figure which shows the structure of the iron core in the armature of the rotary electric machine concerning Embodiment 1 of this invention. It is a flowchart explaining the manufacturing process of the armature of the rotary electric machine concerning Embodiment 1 of this invention. The front schematic diagram (a) which shows the state of the division | segmentation iron core before winding the coil in Embodiment 1 of this invention, and the front which shows the coil assembly formed by winding a coil around two division | segmentation iron cores It is a schematic diagram (b). It is a figure which shows the 1st insulating member (a) set to the slot of the split iron core in Embodiment 1 of this invention, and the 2nd insulating member (b) set to the opening part of a slot. It is a figure explaining the 1st winding system which installs a coil in the two division | segmentation iron cores in Embodiment 1 of this invention. It is a figure explaining the 2nd winding system which installs a coil in two division | segmentation iron cores in Embodiment 1 of this invention. It is a figure explaining the 3rd winding system which installs a coil in two division iron cores in Embodiment 1 of the present invention. It is a figure which shows each step which produces an armature from the some coil assembly in Embodiment 1 of this invention. It is a figure explaining in detail the arrangement | positioning of the split iron core in the armature of the rotary electric machine which concerns on Embodiment 1 of this invention, and arrangement | positioning of a coil. It is the perspective view (a) which shows the structure of the split iron core used for the armature of the rotary electric machine concerning Embodiment 2 of this invention, and the figure (b) explaining the connection of a split iron core. It is a front schematic diagram which shows the structure of the split iron core used for the armature of the rotary electric machine concerning Embodiment 3 of this invention. It is a front schematic diagram which shows the iron core structure used for the armature of the rotary electric machine concerning Embodiment 4 of this invention. FIG. 10 is a diagram showing a coil assembly formed by winding a coil between a slot of a first divided iron core and a slot of a second division in the fourth embodiment. It is a front schematic diagram which shows the armature of the rotary electric machine concerning Embodiment 4 of this invention. It is a figure which shows the structure of the coil end part in the armature of the rotary electric machine concerning Embodiment 1 of this invention. It is a front schematic diagram which shows the iron core structure used for the armature of the rotary electric machine concerning Embodiment 5 of this invention. It is a front schematic diagram which shows the arrangement | positioning state of the insulating member in the iron core used for the armature of the rotary electric machine concerning Embodiment 5 of this invention. It is a front schematic diagram of the armature of the rotary electric machine concerning Embodiment 5 of this invention.

Embodiment 1 FIG.
FIG. 1 is a schematic front view of an armature of a rotary electric machine according to Embodiment 1 of the present invention.
As shown in FIG. 1, an armature 100 of a rotating electrical machine according to the present embodiment includes an iron core 1 formed of a plurality of divided iron cores 3 and a coil 2 wound over a plurality of magnetic pole teeth 5 of the iron core 1. And an insulating member 20 that retains insulation between the iron core 1 and the coil 2. The insulating member 20 includes a first insulating member serving as a slot cell, which will be described later, and a second insulating member serving as a wedge that closes the slot opening.

FIG. 2 is a diagram showing the structure of the iron core in the armature of the rotary electric machine according to Embodiment 1 of the present invention.
As shown in FIG. 2, the iron core 1 of the present embodiment is formed by alternately arranging first divided iron cores 3a and second divided iron cores 3b adjacent to the first divided iron cores 3a. The magnetic pole teeth portion 5 extending from the circumference of the core toward the radial center of the iron core is provided.
The first split iron core 3 a includes magnetic teeth constituting portions 5 a at both ends in the circumferential direction of the yoke portion 4, and a portion surrounded by the yoke portion 4 and the magnetic teeth constituting portion 5 a becomes a slot 6. Yes. The second split iron core 3 b includes magnetic tooth constituent portions 5 b at both ends in the circumferential direction of the yoke portion 4, and a portion surrounded by the yoke portion 4 and the magnetic tooth constituent portions 5 b is a slot 6. Yes.
In both the split iron cores 3a and 3b, both end portions of the magnetic tooth constituent portions are not in contact with each other and are separated from each other by a predetermined distance to form openings.

Moreover, the 1st division | segmentation iron core 3a is provided with the level | step-difference part in the side surface of the yoke part 4, and the convex part is provided in the side surface of the magnetic pole component part 5a. The second split iron core 3b has a convex portion on the side surface of the yoke portion 4 and a concave portion on the side surface of the magnetic pole tooth constituent portion 5b. And when the 1st division | segmentation iron core 3a and the 2nd division | segmentation iron core 3b are arranged on the circumference by turns, the level | step-difference part of the 1st division | segmentation iron core 3a fits with the convex part of the 2nd division | segmentation iron core 3b. The convex portion of the first divided iron core 3a is engaged with the concave portion of the second divided iron core 3b.
The iron core 1 formed by alternately arranging the first divided iron cores 3a and the second divided iron cores 3b on the circumference includes the first divided iron core 3a and the second divided iron core 3b in the circumferential direction. The magnetic teeth teeth portion 5 of the iron core 1 is formed by the magnetic teeth teeth constituting portion 5a of the first divided iron core 3a and the magnetic teeth teeth constituting portion 5b of the second divided iron core 3b.
That is, the iron core 1 of the present embodiment is formed of a divided iron core that is divided in the circumferential direction by the tooth portion of the iron core 1.

A method for manufacturing the armature of the rotating electrical machine of the present embodiment will be described.
FIG. 3 is a flowchart for explaining a manufacturing process of the rotating electrical machine according to the first embodiment of the present invention.
As shown in FIG. 3, in the first step, a split iron core is formed by laminating magnetic core split iron pieces punched from a silicon steel plate. In the second step, a first insulating member that becomes a slot cell is mounted in the U-shaped portion of the slot of the split core. In the third step, two types of divided iron cores are positioned and set at predetermined positions on the workpiece. In the fourth step, a coil is formed by winding an electric wire between slots of two types of divided cores positioned and set on a workpiece. In the fifth step, a second insulating member serving as a wedge is attached to the slot opening of the split iron core to form a coil assembly. In the sixth step, the coil protruding from the end of the split iron core is formed into the shape of the coil end. In the seventh step, the plurality of coil combinations are positioned at predetermined positions. In the eighth step, after the split iron core on one side of each coil combination is passed through the coil ring of the adjacent coil combination, a plurality of coil combinations are formed by constraining each coil combination in an annular shape. Join. In the final ninth step, the joint portions of the split iron cores are joined. And the said 1st process-9th process are implemented sequentially, and the armature of a rotary electric machine is completed.

Next, the detail of the formation process of a coil assembly is demonstrated.
FIG. 4 is a schematic front view (a) showing a state of the split core before winding the coil in Embodiment 1 of the present invention, and a coil combination formed by winding the coil around two types of split cores. It is the front schematic diagram (b) which shows a body.
FIG. 5 is a diagram showing a first insulating member (a) set in the slot of the split iron core and a second insulating member (b) set in the opening of the slot in the first embodiment of the present invention. is there.
As shown in FIG. 4A, a first split core 3a and a second split core 3b in which U-shaped film-like slot cells, which are the first insulating members 7, are mounted from the stacking direction of the split cores. Are placed on a workpiece (not shown) at a predetermined interval.
As shown in FIG. 5A, the first insulating member 7 is provided with locking portions 7 a that are locked to the end surface of the iron core at both ends thereof. Even if 7a is not provided, there is no problem in insulation. When the locking portion 7a is provided on the first insulating member 7, the mounting property of the first insulating member 7 in the slot 6 is improved.

The coil 2a is wound between the slot 6 of the first divided iron core 3a and the slot 6 of the second divided iron core 3b, which is installed on the workpiece with the predetermined interval, and the opening of each slot has a first A U-shaped film-shaped wedge (shown in FIG. 5B), which is the insulating member 15 of No. 2, is mounted from the stacking direction of the split cores. In this way, the first coil combination 8a shown in FIG.
Similarly, the second coil combination 8b in which the coil 2b is wound between the slots 6 of the first divided iron core 3a and the second divided iron core 3b, and the first divided iron core 3a and the second A third coil combination 8c in which the coil 2c is wound between the slot 6 and the divided iron core 3b is produced.

Next, a winding method in which the coil 2 is installed on two types of divided iron cores will be described.
FIG. 6 is a diagram illustrating a first winding method in which a coil is installed on two types of split cores according to Embodiment 1 of the present invention.
In the first winding method, first, as shown in FIG. 6 (a), the electric wire 25 is wound around the winding frame 16 to form the coil 2, and then the winding frame as shown in FIG. 6 (b). In this method, the coil 2 formed in 16 is dropped into the openings of the slots 6 of two types of split cores set on the workpiece, and the coil 2 is installed on the split core 3.

FIG. 7 is a diagram illustrating a second winding method in which coils are installed on two types of split cores according to Embodiment 1 of the present invention.
As shown in FIG. 7, the second winding method is a flyer in which a coil 2 is installed by winding a wire 25 directly in a slot 6 of two types of split iron cores set on a work by the rotation of a flyer 17. Winding method.
FIG. 8 is a diagram illustrating a third winding method in which a coil is installed on two types of split cores according to the first embodiment of the present invention.
As shown in FIG. 8, the third winding method uses a former 18 as a coil guide to wind an electric wire 25 into a slot 6 of two types of divided cores set on a work by a winding machine 19, This is a former winding method in which the coil 2 is installed.

Next, the detail of the manufacturing process of the armature 100 of a rotary electric machine using a some coil assembly is demonstrated.
FIG. 9 is a diagram showing each stage of manufacturing an armature from a plurality of coil combinations in the first embodiment of the present invention.
In the first stage, the coils 2a, 2b, 2c of the coil combinations 8a, 8b, 8c are formed in the shape of the coil end portion from the end of each split iron core, and FIG. As shown, the coils 2a, 2b, 2c of each coil combination 8a, 8b, 8c are bent so that the slot opening of the split iron core is on the inside.
In the second stage, as shown in FIG. 9B, the first split iron core 3a of the first coil combination 8a is arranged on the inner peripheral side of the curved coil 2b of the second coil combination 8b. The first divided core 3a of the second coil combination 8b is arranged on the inner peripheral side of the curved coil 2c of the third coil combination 8c, and the first divided core 3a of the third coil combination 8c. Are arranged on the inner peripheral side of the curved coil 2a of the first coil combination 8a.
That is, the curved coil combinations 8a, 8b, 8c are arranged in a bowl shape.

In the third stage, as shown in FIG. 9C, the first split iron core 3a of the first coil combination 8a is inserted into the curved coil 2b of the second coil combination 8b, The first split core 3a of the second coil combination 8b is inserted into the ring of the curved coil 2c of the third coil combination 8c, and the first split core 3a of the third coil combination 8c is inserted. And inserted into the loop of the curved coil 2a of the first coil combination 8a.
In the fourth step, the first split iron core 3a of the first coil combination 8a inserted into the ring of the curved coil 2b of the second coil combination 8b is replaced with the second of the second coil combination 8b. And the second split core 3b of the third coil combination 8c. The first split core 3a of the second coil combination 8b inserted into the ring of the curved coil 2c of the third coil combination 8c is replaced with the second split core 3b of the third coil combination 8c. It couple | bonds with the 2nd division | segmentation iron core 3b of the 1st coil combination body 8a. The first split core 3a of the third coil combination 8c inserted into the ring of the curved coil 2a of the first coil combination 8a is replaced with the second split core 3b of the first coil combination 8a. It couple | bonds with the 2nd division | segmentation iron core 3b of the 2nd coil assembly 8b.

Finally, the joint portions of the split iron cores are joined to complete the armature 100 of the rotating electrical machine shown in FIG.
Since the armature of the rotating electrical machine according to the present embodiment is manufactured by the above-described process, the coil remainder at the coil end portion protruding from the end portion of the split core is small, and the coil space factor in the slot A large armature can be obtained. Further, since the coil is wound directly around the split iron core, the productivity is excellent.

FIG. 10 is a diagram for explaining in detail the arrangement of the split cores and the arrangement of the coils in the armature of the rotary electric machine according to Embodiment 1 of the present invention.
As shown in FIG. 10, the iron core 1 is formed by alternately arranging the first divided iron cores 3a and the second divided iron cores 3b on the circumference.
The coil 2a of the first coil combination 8a, the coil 2b of the second coil combination 8b, and the coil 2c of the third coil combination 8c each straddle the three magnetic pole teeth of the iron core 1. ing.
And the 1st division | segmentation iron core 3a side of the coil 2a is arrange | positioned inside the iron core radial direction in contact with the coil 2b, and the 1st division | segmentation iron core 3a side of the coil 2b is arranged inside the iron core radial direction in contact with the coil 2c. The first split iron core 3a side of the coil 2c is disposed in contact with the coil 2a on the inner side in the iron core radial direction.

Since the armature 100 of the rotating electrical machine according to the present embodiment has the above-described structure, there is little coil remainder at the coil end portion protruding from the end portion of the divided core, and the coil space factor in the slot of the iron core is small. It is an armature that is high in size, has a small magnetic field strength, that is, a small and high-performance rotating electric machine.
The armature of the present embodiment can be used as a stator of a rotating electric machine.
In the present embodiment, film-like insulation is provided between the first insulating member 7 serving as a slot cell provided in the slot 6 of the split iron core and the second insulating member 15 serving as a wedge provided in the slot opening. Although a member is used, a resin molded product may be used.
In the armature 100 of the rotating electrical machine of the present embodiment, the iron core 1 is formed by six divided iron cores, but is not limited thereto, and may be formed by six or more even numbered divided iron cores. The number is appropriately determined in view of the specifications of the rotating electric machine to be used, assemblability, and the like.
In this embodiment, the iron core is formed using two types of split iron cores. However, a step portion is provided on the yoke portion on the side surface on one side in the circumferential direction, a convex portion is provided on the magnetic pole tooth constituting portion, and the other side is provided. The iron core may be formed by arranging one type of divided iron core provided with a convex portion on the yoke portion on the side surface and provided with a concave portion on the magnetic pole tooth constituent portion on the circumference.

Embodiment 2. FIG.
FIG. 11 is a partial perspective schematic view (a) showing the structure of the split core used in the armature of the rotating electrical machine according to the second embodiment of the present invention, and a diagram (b) explaining the connection of the split core.
As shown in FIG. 11 (a), the iron core 11 of the present embodiment is formed in the radial direction of the iron core at the connecting portion with the other divided iron core on the first magnetic pole tooth constituting portion 51a side, and in the stacking direction. A plurality of arranged convex portions 9 are provided, and a plurality of concave portions 10 formed in the radial direction of the iron core and arranged in the stacking direction are provided at the coupling portion with the other divided iron core on the second magnetic pole tooth constituting portion 51b side. It has been.
And the several convex part 9 formed in the 1st magnetic pole tooth structure part 51a side and the several recessed part 10 formed in the 2nd magnetic pole tooth structure part 51b side are in the same position in the lamination direction of the division | segmentation iron core 31. is there.

Then, for example, the plurality of convex portions 9 formed on the first magnetic pole tooth constituting portion 51a side of the divided core 31 are formed on the second magnetic pole tooth constituting portion 51b side of the adjacent divided iron core 31 in the clockwise direction. The plurality of recesses 10 that are fitted with the plurality of recesses 10 and formed on the second magnetic pole tooth constituting part 51b side of the split iron core 31 are the second ones of the split iron cores 31 (not shown) adjacent in the counterclockwise direction. A plurality of convex portions 9 formed on one magnetic tooth portion 51a side are fitted.
Further, as shown in FIG. 11B, the split cores 31 are coupled to each other by splitting the adjacent split cores 31 in the radial direction of the core.
The armature of the rotating electric machine of the present embodiment is the same as the armature of the rotating electric machine of the first embodiment, except that the divided core 31 has the above-described structure.
The armature of the rotating electric machine of the present embodiment has the same effect as the armature of the rotating electric machine of the first embodiment, and is provided with a convex portion on one magnetic pole teeth portion side of the split iron core, and the other magnetic pole teeth. Since the concave portion is provided on the part side, it is easy to position the divided iron cores, and misalignment in the stacking direction is hardly caused when the divided iron cores are joined.

Embodiment 3 FIG.
FIG. 12 is a schematic front view (a) showing the structure of the split iron core used in the armature of the rotary electric machine according to the third embodiment of the present invention, and a diagram (b) showing a state in which the split iron cores are combined.
As shown in FIG. 12 (a), two types of split cores are used for the split core that forms the core of the present embodiment. The first split iron core 32a is a split iron core having a protrusion provided with protrusions 11 formed in the circumferential direction of the iron core and arranged in the stacking direction at the joint with the other split iron core in the magnetic tooth component 52a. is there. The second divided iron core 32b is a divided iron core having a depression provided with depressions 12 formed in the circumferential direction of the iron core and arranged in the stacking direction at a coupling portion with the other divided iron core in the magnetic tooth component 52b. is there.
And the 1st division | segmentation iron core 32a and the 2nd division | segmentation iron core 32b are alternately arranged on the periphery, and an iron core is formed. At this time, as shown in FIG. 12 (b), the protrusion 11 of the first divided iron core 32a is fitted with the recess 12 of the second divided iron core 32b.
In addition, a recess 21 having a taper is provided in a joint portion between the outer peripheral side end portion of the yoke portion 4a of the first divided core 32a and another divided core, and the outer peripheral side of the yoke portion 4b of the second divided core 32b. A projection 22 having a taper is provided at a joint portion with the other divided iron core at the end, and the recess 21 and the projection 22 engage with each other.

The armature of the rotating electrical machine according to the present embodiment is the same as the armature of the rotating electrical machine according to the first embodiment, except that the divided iron core has the above-described structure.
The armature of the rotating electric machine of the present embodiment has the same effect as the armature of the rotating electric machine of the first embodiment. Since the iron core is formed by alternately arranging the first divided iron core in which the protrusion portion is provided in the magnetic pole tooth portion and the second divided iron core in which the recess portion is provided in the magnetic tooth portion, the divided iron core is formed. Positioning between the iron cores is easy, and radial displacement is unlikely to occur when the divided cores are joined.
Further, in the armature of the rotating electrical machine according to the present embodiment, a tapered recess is formed in the yoke portion of the first divided iron core, and a tapered protrusion is formed in the yoke portion of the second divided iron core. As shown in FIG. 9 (c), when the split cores are joined, the first split cores can be slid without interfering with each other by arranging the split cores on the center side. The property is excellent.
In addition, a protrusion formed in the stacking direction of the iron core is provided at the coupling portion with the other divided iron core in the magnetic tooth component 52a, and the core is laminated at the coupling portion with the other divided iron core in the magnetic tooth component 52b. An iron core formed by arranging divided cores (not shown) provided with recesses 12 formed in the direction on the circumference may be used, and the same effect can be obtained.

Embodiment 4 FIG.
FIG. 13: is a front schematic diagram which shows the iron core structure used for the armature of the rotary electric machine concerning Embodiment 4 of this invention.
As shown in FIG. 13, two types of divided cores 34a and 34b having different positions of the slots 6 in the radial direction of the core 14 are used. That is, the slot position of the second divided iron core 34b is shifted to the outer peripheral side in the radial direction of the iron core 14 from the slot position of the first divided iron core 34a. The iron core 14 is formed by alternately arranging the first divided iron core 34a and the second divided iron core 34b on the circumference.

FIG. 14 is a diagram showing a coil assembly formed by winding a coil between a slot of a first divided iron core and a slot of a second divided iron core in Embodiment 4 of the present invention.
FIG. 15 is a schematic front view showing an armature of a rotary electric machine according to Embodiment 4 of the present invention.
As shown in FIG. 14, the coil combination 84 formed by winding the coil 24 around the first divided iron core 34a and the second divided iron core 34b also has a slot opening of the divided iron core as in the first embodiment. Curved to be inside. The three coil assemblies 84 formed in this way are combined in the same manner as in the first embodiment, and the divided iron cores are joined together, and the joined portions are joined together, so that the embodiment shown in FIG. An armature 200 of the rotating electric machine is obtained.
Also in the armature 200 of the rotating electrical machine of the present embodiment, the coil 24 is disposed across a plurality of magnetic pole teeth.

FIG. 16 is a diagram illustrating a structure of a coil end portion in the armature of the rotating electrical machine according to the first embodiment of the present invention.
In the armature 100 of the rotating electrical machine according to the first embodiment, the coil end of the split iron core 3 is overlapped on the inner peripheral side, and the coil 2 has the diameter of the iron core 1 to avoid the coils overlapping on the inner peripheral side. It is bent to the outer peripheral side in the direction.
For example, in the armature 100 shown in FIG. 10, as shown in FIG. 16, in order to avoid the coil 2 c overlapping on the inner peripheral side, 2a is bent to the outer peripheral side in the radial direction of the iron core 1.
And both the coil 2b and the coil 2c are similarly bent by the outer peripheral side in the radial direction of the iron core 1 in the coil end part of the 2nd division | segmentation iron core 3b.

However, as shown in FIG. 15, in the armature 200 of the rotating electrical machine according to the present embodiment, the inner periphery of the coil end portion of the second split iron core 34 b provided with slots shifted to the outer peripheral side in the radial direction of the iron core 14. Since the other coil is arranged on the side, interference between the coil from the coil end portion and the other coil arranged on the inner peripheral side can be prevented.
In the present embodiment, the first divided iron cores 34a and the second divided iron cores 34b are alternately arranged, but there are a plurality of the first divided iron cores 34a disposed between the second divided iron cores 34b. May be. However, the number of the 1st division | segmentation iron cores 34a arrange | positioned between each 2nd division | segmentation iron core 34b is the same. That is, each one second divided iron core is sandwiched between the first divided iron cores and arranged at the same interval.
The armature 200 of the rotating electrical machine according to the present embodiment is the same as the armature of the rotating electrical machine according to the first to third embodiments except that the split iron core has the above-described structure.
The armature 200 of the rotating electrical machine according to the present embodiment has the same effect as the armature of the rotating electrical machine according to the first to third embodiments, and the coil from the coil end portion and the inner peripheral side of the coil. Since interference with other coils arranged on the coil end can be prevented, the coil remainder at the coil end portion can be further reduced.

Embodiment 5 FIG.
FIG. 17 is a schematic front view showing an iron core structure used in an armature of a rotary electric machine according to Embodiment 5 of the present invention.
As shown in FIG. 17, the iron core 41 of the present embodiment is formed by alternately arranging the first divided iron cores 43a and the second divided iron cores 43b adjacent to the first divided iron cores 43a and the yokes. Magnetic pole teeth 45 extending from the circumference of the core toward the outside in the radial direction of the iron core are provided.
The first split iron core 43 a includes magnetic teeth constituting portions 45 a at both ends in the circumferential direction of the yoke portion 44, and a portion surrounded by the yoke portion 44 and the magnetic teeth constituting portion 45 a becomes a slot 46. Yes. The second split iron core 43 b includes magnetic tooth constituent portions 45 b at both ends in the circumferential direction of the yoke portion 44, and a portion surrounded by the yoke portion 44 and the magnetic tooth constituent portions 45 b is a slot 46. Yes.
Both the split iron cores 43a and 43b are not in contact with each other at the tip ends of the magnetic tooth constituent parts, and are separated from each other by a predetermined distance to form openings.

Further, the first split core 43 a is provided with a step portion on the side surface of the magnetic tooth component 45 a and a convex portion on the side surface of the yoke portion 44. The second split iron core 43 b is provided with a convex portion on the side surface of the magnetic pole tooth constituting portion 45 b and a concave portion on the side surface of the yoke portion 44. And when the 1st division | segmentation iron core 43a and the 2nd division | segmentation iron core 43b are arranged on the circumference by turns, the level | step-difference part of the 1st division | segmentation iron core 43a fits with the convex part of the 2nd division | segmentation iron core 43b. The convex portion of the first split iron core 43a is engaged with the concave portion of the second split iron core 43b.
The iron core 41 formed by alternately arranging the first divided iron cores 43a and the second divided iron cores 43b on the circumference includes the first divided iron core 43a and the second divided iron core 43b in the circumferential direction. The magnetic tooth teeth 45 of the first split iron core 43a and the magnetic tooth teeth 45b of the second split iron core 43b form the magnetic teeth 45 of the iron core 41.
That is, the iron core 41 of the present embodiment is also formed of a divided iron core that is divided in the circumferential direction by the magnetic pole teeth of the iron core 41.

FIG. 18 is a schematic front view showing an arrangement state of insulating members in an iron core used in an armature of a rotary electric machine according to Embodiment 5 of the present invention.
As shown in FIG. 18, the slot cells, which are the first insulating members 47, are attached to the slots 46 of all the divided cores, and the wedges, which are the second insulating members 48, are attached to the openings of the respective slots. .
FIG. 19 is a schematic front view of an armature of a rotary electric machine according to Embodiment 5 of the present invention.
Since the iron core 41 has the above-described structure, the armature 300 of the rotating electric machine according to the present embodiment has a first divided iron core 43a and a second divided iron core 43b on the circumference as shown in FIG. Are alternately arranged to form the iron core 1.
The armature 300 of the rotating electric machine according to the present embodiment includes three coils 42a, 42b, and 42c, and each coil includes a first divided iron core 43a that is installed across two divided iron cores. It is wound between the second divided iron cores 43b. That is, each coil straddles the three magnetic pole teeth 45 of the iron core 41.
In addition, the first divided iron core 43a side of the coil 42a is disposed inward of the iron core radial direction in contact with the coil 42b, and the first divided iron core 43a side of the coil 42b is disposed inward of the iron core radial direction in contact with the coil 42c. The first split iron core 43a side of the coil 42c is disposed in contact with the coil 42a and on the inner side in the iron core radial direction.

The armature 300 of the rotating electric machine according to the present embodiment is the armature 100 of the rotating electric machine according to the first embodiment, except that the magnetic tooth portion constituting the split iron core extends from the yoke part to the outside in the radial direction of the iron core. It has the same effect as the armature 100 of the rotating electrical machine of the first embodiment.
And the armature 300 of the rotary electric machine of this Embodiment can be used for the rotor of a rotary electric machine.
In the present embodiment, similarly to the second embodiment, a plurality of protrusions formed in the radial direction of the iron core and arranged in the stacking direction at the coupling portion with the other divided iron core in the one magnetic tooth portion of the divided iron core. And a plurality of recesses formed in the radial direction of the iron core and arranged in the stacking direction may be provided in a joint portion with the other divided iron core in the other magnetic pole tooth constituent portion.
If it does in this way, the effect similar to the armature of the rotary electric machine of Embodiment 2 will be acquired.
Further, in the present embodiment, as in the third embodiment, the first split iron core is formed in the radial direction of the second split core by forming a tapered recess in the outer side in the radial direction of the first split core, that is, in the magnetic teeth component. A protrusion having a taper may be formed on the outer side of the magnetic pole, that is, the magnetic pole tooth constituent portion.
If it does in this way, the effect similar to the armature of the rotary electric machine of Embodiment 3 will be acquired.

  Since the armature of the rotating electrical machine according to the present invention is formed by combining a coil combination made up of two divided iron cores and coils, there is little coil remainder at the coil end portion, and the iron core The armature has a large coil space factor in the slot, and can be applied to a small and high-performance rotating electric machine.

1 iron core, 2, 2a, 2b, 2c coil, 3 divided iron core, 3a first divided iron core,
3b Second split iron core, 4, 4a, 4b Yoke part, 5 magnetic teeth part,
5a, 5b Magnetic teeth component part, 6 slot, 7 1st insulating member, 7a Locking part,
8a first coil combination, 8b second coil combination, 8c third coil combination,
9 convex part, 10 concave part, 11 protrusion part, 12 hollow part, 14 iron core,
15 Second insulating member, 16 winding frame, 17 flyer, 18 former, 19 winding machine,
20 insulating members, 21 depressions, 22 protrusions, 24 coils, 25 electric wires,
31 divided iron core, 32a first divided iron core, 32b second divided iron core,
34a first divided iron core, 34b second divided iron core,
41 iron core, 42a, 42b, 42c coil, 43a first divided iron core,
43b 2nd division | segmentation iron core, yoke part 44, 45 magnetic pole teeth part,
45a, 45b Magnetic teeth component part, 46 slot, 47 1st insulation member,
48 2nd insulation member, 51a 1st magnetic pole teeth structure part,
51b Second magnetic teeth component, 52a, 52b Magnetic teeth component,
84 Coil assembly, 100, 200, 300 Armature of rotating electric machine.

Claims (13)

  An even number of divided cores are arranged on the circumference and provided with magnetic cores extending in a radial direction from the yoke, and in the slots of each of the two divided cores forming the cores. An armature of a rotating electrical machine comprising a coil disposed across a plurality of magnetic teeth of the iron core, wherein the split iron core is provided at an arcuate yoke portion and at both ends of the yoke portion A magnetic pole tooth constituent part; and the slot surrounded by the yoke part and the magnetic pole tooth constituent part, wherein the magnetic pole tooth is the other adjacent to the magnetic pole tooth constituent part at one end of the adjacent one of the divided cores. The magnetic pole teeth constituting portion at the other end of the split iron core, and an insulating member is provided in the slot, and the coil is disposed in the slot in which the insulating member is provided. Between segment core, an armature of a rotary electric machine further the divided core is disposed.   A plurality of convex portions formed in the radial direction of the core and arranged in the stacking direction are provided in a joint portion with the other divided iron core in the magnetic pole tooth constituent part at one end, and the other split iron core in the magnetic pole tooth constituent part at the other end The core is formed by arranging a plurality of concave cores formed in the radial direction of the iron core and arranged in the stacking direction at the coupling portion, and the iron core is formed on the side of the magnetic pole teeth constituent part side 2. The plurality of convex portions formed on the other side of the other divided iron cores are fitted with the plurality of concave portions formed on the other side of the magnetic pole teeth constituting portion. The armature of the rotating electric machine according to 1.   A split iron core having a protrusion provided with protrusions formed in the circumferential direction of the iron core and arranged in the stacking direction at the joint with the other split iron core in the magnetic tooth constituent part, and the other split iron core in the magnetic pole tooth constituent part The cores are formed by alternately arranging the divided cores having depressions provided with depressions provided in the circumferential direction of the iron cores and arranged in the stacking direction at the joints with the core. The armature for a rotating electrical machine according to claim 1, wherein the protruding portion of the split iron core having a protrusion is fitted to the hollow portion of the split iron core having the recess.   The divided cores arranged in contact with the circumference forming the iron core are arranged such that the first divided iron core and the slot position are shifted from the slot position of the first divided iron core to the outer peripheral side in the radial direction of the iron core. 4. Each of the second divided iron cores is sandwiched between the first divided iron cores and arranged at the same interval. 5. The armature of the rotary electric machine according to any one of the above.   The armature for a rotating electrical machine according to claim 1, wherein the magnetic pole teeth portion of the iron core extends from the yoke toward the center side in the radial direction of the iron core.   2. The armature for a rotating electrical machine according to claim 1, wherein the magnetic pole teeth portion of the iron core extends outward from the yoke in the radial direction of the iron core.   2. The rotation according to claim 1, wherein the insulating member includes a first insulating member disposed in a U-shaped portion of a slot of the split iron core and a second insulating member that closes the slot opening. Electric armature.   The armature for a rotating electric machine according to claim 7, wherein the insulating member is a film-like insulating material.   The armature for a rotating electrical machine according to claim 7, wherein the insulating member is a resin molded product.   A first step of laminating divided core pieces of a magnetic plate to form a divided core, a second step of attaching a first insulating member to a slot of the divided core, and the two divided cores as a workpiece A third step of positioning and setting; a fourth step of winding a wire between the slots of the two split cores positioned on the workpiece to form a coil; and the split having the coil formed thereon. A fifth step of forming a coil assembly by attaching a second insulating member to the opening of the iron core, and a sixth step of forming the coil protruding from the end of the split iron core into the shape of a coil end portion; A seventh step of positioning the plurality of coil assemblies in a predetermined position, and after passing the split iron core on one side of each coil assembly into the coil ring of the adjacent coil assembly , Restrain each coil assembly in an annular shape Eighth and step, a ninth step the armature manufacturing method of a rotating electric machine provided with a joining a coupling portion of the segment core for coupling a plurality of the coils combined product by the.   In the fourth step, an electric wire is wound around a winding frame to form a coil, and the coil formed on the winding frame is dropped into the openings of the slots of the two divided iron cores set on the work, and the divided iron core is The method of manufacturing an armature for a rotating electrical machine according to claim 10, wherein the coil is installed in the armature.   11. The method according to claim 10, wherein the fourth step is a system in which a coil is installed by directly winding an electric wire in a slot of two divided cores set on a work by rotation of a flyer. A method for manufacturing an armature of a rotating electric machine.   The fourth step is a method in which a coil is installed by winding a wire with a winding machine into a slot of two divided iron cores set on a work using a former which is a coil guide. Item 11. A method for manufacturing an armature of a rotating electric machine according to Item 10.

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