JP6366849B2 - Rotating electric machine and method of manufacturing rotating electric machine - Google Patents

Description

  The present invention relates to a rotating electrical machine and a method for manufacturing the rotating electrical machine, and more particularly to an insulating structure of a coil end portion in an armature winding.

In recent years, rotating electrical machines used as electric motors and generators are required to be small and have high output and high quality.
With the increase in the output of the rotating electrical machine, a high voltage is applied to the windings constituting the armature of the rotating electrical machine, and the potential difference generated at the coil end portion is particularly large. Therefore, the armature winding needs to be insulated to withstand a high potential difference at the coil end portion. In particular, in a rotating electrical machine that requires miniaturization, insulation at the coil end portion of the armature winding is important.

There has been proposed a rotating electrical machine that is excellent in insulation at the coil end of the armature winding.
For example, there is a rotating electrical machine that secures a sufficient insulation distance between a coil end protruding from an axial end face of a stator core that is an armature core and a coil terminal. The rotating electrical machine has a gap between a first coil terminal extending from the outer peripheral side of the coil end and a radially outer end face of the coil end, and a second coil terminal connected to the first coil terminal; A gap is provided between the coil end and the axially outer end face (see, for example, Patent Document 1).

JP 2012-111501 A (page 4-5, FIGS. 1 and 2)

Since the rotary electric machine described in Patent Document 1 provides a gap between the first coil terminal and the radial end face of the coil end, the first coil terminal extending from the stator core has two adjacent root portions. It is bent into a crank shape.
The root portion of the first coil terminal that is bent at two adjacent positions and processed into a crank shape has a large mechanical load (denoted as a processing load) due to processing of the conductive wire forming the first coil terminal. There is a possibility of damage to the insulation film of the conductor.
That is, the rotating electrical machine described in Patent Document 1 has a problem in that the insulation of the base wire of the first coil terminal close to the radial end face of the coil end is lowered and the insulation of the armature winding is lowered. was there.

  The present invention has been made to solve the above-described problems, and its object is to secure an insulation distance between the coil end of the armature winding and the terminal wire, and to achieve the coil end of the terminal wire. It is an object of the present invention to provide a small-sized and high-output rotating electrical machine that is excellent in insulation and that prevents damage to the insulating coating of the conductive wire in a part close to the part, and a manufacturing method thereof.

A rotating electrical machine according to the present invention includes an armature and a rotor, and the armature includes an armature core and an armature winding disposed in a slot of the armature core,
The armature winding is composed of a slot housing portion that is housed in a slot of the armature core and a coil end that protrudes from an axial end surface of the armature core,
The coil end on the side from which the terminal wire is led out from the slot housing portion is a terminal wire side coil end,
The terminal wire side coil end includes a coil end main body that connects between the slot accommodating portions accommodated in the slots at a predetermined interval in the circumferential direction, and a radially outer peripheral side of the slot. The outer peripheral side terminal line led out from the first slot accommodating part at the base part of the slot and the inner peripheral side terminal line led out from the second slot accommodating part at the tip part on the inner peripheral side in the radial direction of the slot And consists of
The outer peripheral terminal line includes a first oblique side portion, a first terminal portion, a first slot accommodating portion side bent portion at a boundary between the first oblique side portion and the first slot accommodating portion, and the first oblique side. And a first terminal portion side bent portion at the boundary of the first terminal portion,
The first oblique side portion extends obliquely outward in the axial direction from the first slot housing portion side bent portion, and the first terminal portion side bent portion is separated from the coil end body in the radial direction. An internal angle formed by the first oblique side portion and the first slot housing portion is an obtuse angle,
The first terminal portion extends outward in the axial direction from the bent portion on the first terminal portion side, and an inner angle formed by the first terminal portion and the first oblique side portion is the first oblique side portion and the first oblique portion. It is the same as the inner angle formed with the one-slot housing part, and the tip part of the first terminal part is the first connection part,
The inner peripheral terminal line includes a second oblique side portion, a second terminal portion, and a second terminal portion side bent portion at a boundary between the second oblique side portion and the second terminal portion,
The second terminal portion extends from the second terminal portion side bent portion to the outside in the axial direction, extends from the upright portion to the outside in the radial direction, and has a gap in the axial direction to straddle the coil end body. It consists of a crossover part, the tip of the crossover part is the second connection part,
The first connection portion of the outer peripheral terminal line led out from the first slot storage portion, the slot in which the first slot storage portion is stored, and a position spaced apart at a predetermined interval in the circumferential direction. The second connection portion of the inner peripheral terminal line led out from the second slot housing portion housed in the slot is joined.

A manufacturing method of a rotating electrical machine according to the present invention is a manufacturing method of a rotating electrical machine including an armature and a rotor, and an armature winding is disposed in a slot of an armature core to form the armature. ,
A first step of disposing a slot accommodating portion of the armature winding in the slot of the armature core;
A first end extending obliquely by processing an outer peripheral terminal line extending from the slot accommodating portion on the root portion side of the slot and bending it at an obtuse angle with respect to the slot accommodating portion on the root portion side of the slot. A second step of forming a hypotenuse portion and a first terminal portion that is bent at an obtuse angle with respect to the first hypotenuse portion and extends in the axially outward direction;
The inner peripheral terminal line extending from the slot accommodating portion on the tip end side of the slot is processed, bent at an obtuse angle with respect to the slot accommodating portion on the tip end side of the slot, and obliquely extended. A third step of forming two oblique sides and a second terminal portion that is bent at an obtuse angle with respect to the second oblique sides and extends outward in the axial direction;
Bending the second terminal portion outward in the radial direction and straddling the coil end body on the side where the outer peripheral terminal wire and the inner peripheral terminal wire extend with a gap in the axial direction; A fourth step of forming a transition part extending in the outer direction of the core and a second connection part extending by bending the transition part in the outer direction in the axial direction;
The first connection portion on the distal end side of the first terminal portion and the second connection portion on the distal end side of the second terminal portion are brought into contact with each other, and the inner peripheral terminal wire and the coil end body are contacted with each other. After the shield is disposed between the outer peripheral side terminal wire and the coil end body, the first connecting portion and the second connecting portion are joined by welding to form the armature. 5 steps,
A sixth step in which a predetermined gap is provided on the inner peripheral side of the armature, and the rotor mounted on the rotation shaft is rotatably installed;
It is equipped with.

  In the rotating electrical machine according to the present invention, the outer peripheral side terminal line includes a first oblique side portion, a first terminal portion, and a first slot storage portion side bent portion at a boundary between the first oblique side portion and the first slot storage portion. And a first terminal portion side bent portion at a boundary between the first oblique side portion and the first terminal portion, and the first oblique side portion is inclined obliquely outward in the axial direction from the first slot housing portion side bent portion. The first terminal portion side bent portion is separated from the coil end main body in the radial direction, and the internal angle formed by the first oblique side portion and the first slot housing portion is an obtuse angle. The insulation distance between the coil end main body and the terminal wire is secured, and the insulation coating of the conductor wire at the portion closest to the coil end main body on the outer peripheral side wire is prevented from being damaged. Are better.

  In the method of manufacturing the rotating electrical machine according to the present invention, the shielding member is disposed between the inner peripheral terminal wire and the coil end body and between the outer peripheral terminal wire and the coil end body, Since the connection portion is joined by welding, the coil end main body can be protected from arcs and heat generated during joining, and deterioration of the insulation of the armature winding during manufacture can be prevented.

It is a single-sided cross-sectional schematic diagram of the rotary electric machine concerning Embodiment 1 of this invention. It is a perspective schematic diagram which shows the armature and rotor which are the principal parts of the rotary electric machine concerning Embodiment 1 of this invention. It is a perspective schematic diagram of the armature of the rotary electric machine concerning Embodiment 1 of this invention. The front schematic diagram (a) and front schematic diagram of the outer peripheral terminal line of the armature winding according to the first embodiment of the present invention, as viewed from the direction indicated by the arrow Y, and the front schematic diagram are indicated by the arrows. It is the side surface schematic diagram (c) seen from the direction shown by X. They are the upper surface schematic diagram (a) of the inner peripheral side terminal line of the armature winding concerning Embodiment 1 of this invention, and the slope schematic diagram (b) which looked at the upper surface schematic diagram from the direction shown by arrow S. It is a partial upper surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 1 of this invention. It is a partial front schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 1 of this invention. It is a partial side surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 1 of this invention. The front schematic diagram (a) and front schematic diagram of the outer peripheral terminal line of the armature winding according to the second embodiment of the present invention, as viewed from the direction indicated by the arrow Y, and the front schematic diagram are indicated by the arrows. It is the side surface schematic diagram (c) seen from the direction shown by X. It is a partial upper surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 2 of this invention. It is a partial front schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 2 of this invention. It is a partial side surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 2 of this invention. It is a partial front schematic diagram explaining the 2nd arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 2 of this invention. It is a partial side surface schematic diagram explaining the 2nd arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 2 of the present invention. It is the front schematic diagram (a) of the outer peripheral side terminal line of the armature winding concerning Embodiment 3 of this invention, and the upper surface schematic diagram (b) which looked at the front schematic diagram from the direction shown by arrow Y. It is a partial upper surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 3 of this invention. It is a partial front schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 3 of this invention. It is the front schematic diagram (a) of the outer peripheral side terminal wire of the armature winding concerning Embodiment 4 of this invention, and the upper surface schematic diagram (b) which looked at the front schematic diagram from the direction shown by arrow Y. It is a partial upper surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 4 of this invention. It is a partial front schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 4 of this invention. It is a partial upper surface schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 5 of this invention. It is a partial front schematic diagram explaining the arrangement | positioning state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotary electric machine concerning Embodiment 5 of this invention. It is an upper surface schematic diagram which shows the junction part of the outer peripheral side terminal line and the inner peripheral side terminal line which adjoin in the armature of the rotary electric machine concerning Embodiment 5 of this invention. It is an upper surface schematic diagram which shows the junction part of the outer peripheral side end line and inner peripheral side terminal line which adjoin in the armature of the rotary electric machine concerning Embodiment 1 of this invention. It is a schematic diagram explaining the effect in the manufacturing method of the rotary electric machine concerning Embodiment 6 of this invention.

Hereinafter, a rotating electrical machine according to the present invention will be described with reference to the drawings.
Unless otherwise specified, each of the circumferential direction, the radial direction, and the axial direction in the present invention indicates the circumferential direction, the radial direction, and the axial direction in the armature or the rotating electrical machine.

Embodiment 1 FIG.
1 is a schematic diagram of a single-sided cross section of a rotating electrical machine according to Embodiment 1 of the present invention.
FIG. 2 is a schematic perspective view showing an armature and a rotor that are main parts of the rotating electrical machine according to the first embodiment of the present invention.
FIG. 3 is a schematic perspective view of the armature of the rotating electrical machine according to the first embodiment of the present invention.
As shown in FIGS. 1 and 2, the rotating electrical machine 100 according to the present embodiment includes a housing 1 having a bottomed cylindrical frame 2 and an end plate 3 that closes an opening of the frame 2, and a cylindrical portion of the frame 2. The armature 10 is a stator that is fixed to the armature 10 in an internally fitted state, and the rotor 5 is disposed on the inner peripheral side of the armature 10 with a gap.

The rotor 5 is composed of a rotor core 7 fixed to a rotary shaft 6 inserted through the shaft center position, and magnetic poles embedded in the outer peripheral side of the rotor core 7 and arranged at a predetermined pitch in the circumferential direction. This is a permanent magnet type rotor having a permanent magnet 8 to be configured. The rotating shaft 6 is rotatably supported on the bottom of the frame 2 and the end plate 3 via a bearing 4.
The rotor 5 of the present embodiment is a permanent magnet type rotor, but is not limited to this, and a cage type in which a non-insulated rotor conductor is housed in a slot of the rotor core and both sides are short-circuited by a short-circuit ring. A rotor or a wound rotor in which an insulated conductor is mounted in a slot of the rotor core may be used.

As shown in FIGS. 2 and 3, the armature 10 of the present embodiment includes an armature core 11 and an armature winding 20 attached to the armature core 11.
The armature core 11 of the present embodiment is formed by arranging a plurality of core blocks 12 in a ring shape in the circumferential direction.
The armature core 11 includes a back yoke 11a at the outer peripheral portion and teeth 11b protruding in the radial direction from the inner peripheral portion of the back yoke 11a. A slot 11c is formed between the teeth 11b adjacent in the circumferential direction.

The armature winding 20 is formed by disposing a plurality of unit coils formed by winding a conducting wire in each slot 11c.
The unit coil is continuous without a connecting portion for integrally connecting the slot accommodating portions accommodated in the slots 11c at positions spaced apart by a predetermined interval in the circumferential direction and the slot accommodating portions accommodated in the different slots 11c. A turn part and a terminal line led out from each slot storage part are provided. The terminal wire is connected to the terminal wire of another unit coil by welding or the like.
That is, as shown in FIG. 3, the armature winding 20 is constituted by a portion housed in the slot 11 c and a coil end protruding in the axial direction from each axial end surface of the armature core 11. Yes.

In the present embodiment, for example, the terminal wire is led out from the axially upper end face of the armature core 11 in FIG. 3, and the coil end on the side from which this terminal wire is led out is connected to the terminal wire side coil. End 31 is set. And the terminal wire side coil end 31 is provided with the coil end main body 31a and terminal wire which are comprised later by a turn part.
As will be described later, the terminal lines include an outer peripheral terminal line 210 and an inner peripheral terminal line 410.

The outer peripheral side terminal wire 210 is led out from a first slot housing portion 23 which will be described later at the base portion on the outer peripheral side in the radial direction of the slot 11c, and the inner peripheral side terminal wire 410 is the inner peripheral side in the radial direction of the slot 11c. It is led out from a second slot storage portion 24, which will be described later, at the front end portion.
Further, an end face in the axial direction on the side from which both terminal wires 210 and 410 are led out in the armature core 11 is defined as a terminal line side end face 33.

4 is a front schematic diagram (a) of the outer peripheral terminal line of the armature winding according to the first embodiment of the present invention, and a top schematic diagram (b) of the front schematic diagram viewed from the direction indicated by arrow Y. FIG. 4 is a schematic side view (c) of the front schematic view seen from the direction indicated by the arrow X.
As shown in FIG. 4, the outer peripheral side terminal line 210 extending from the first slot accommodating portion 23 includes a first oblique side portion 212, a first terminal portion 214, and a first oblique side portion 212 on the first slot accommodating portion 23 side. The first slot housing portion side bent portion 211 at the end and the first slant side portion 212 opposite to the first slot housing portion side bent portion 211, that is, the first terminal portion side bent portion at the end of the first terminal portion 214 side. Part 213.

The first oblique side portion 212 extends obliquely with respect to the first slot accommodating portion 23, and an internal angle α formed with the first slot accommodating portion 23 is an obtuse angle.
The first terminal portion 214 has an inner angle formed with the first oblique side portion 212 that is the same as an inner angle α formed between the first oblique side portion 212 and the first slot storage portion 23, and an extension line L 1 of the first slot storage portion 23. It extends in parallel.
Further, the first terminal portion 214 is provided with a first connection portion 215 that is connected to the inner peripheral terminal line 410 at the tip portion. The first connection portion 215 is shown in FIG. 4 as a portion of the first terminal portion 214 that is shaded.

The first slot storage portion side bent portion 211 is located at the base portion of the outer peripheral side terminal line 210 that is the boundary between the first slot storage portion 23 and the outer peripheral side terminal line 210, and the first oblique side portion 212 is the first oblique side portion 212. This is a portion where the outer peripheral terminal line 210 is bent so as to be inclined with respect to the one-slot housing portion 23.
The first terminal portion side bent portion 213 is located at the boundary between the first oblique side portion 212 and the first terminal portion 214, and the outer peripheral side terminal so that the first terminal portion 214 is parallel to the extension line L1. This is a portion where the wire 210 is bent.

5A is a schematic top view of the inner peripheral terminal line of the armature winding according to the first embodiment of the present invention, and FIG. 5B is a schematic diagram of the slope when the schematic top view is viewed from the direction indicated by the arrow S. FIG. It is.
As shown in FIG. 5, the inner peripheral side terminal line 410 extending from the second slot accommodating portion 24 has a second oblique side portion 412, a second terminal portion 414, and a second oblique side portion 412 on the second slot accommodating portion 24 side. The second slot housing portion side bent portion 411 at the end of the second and the second oblique portion 412 opposite to the second slot housing portion side bent portion 411, that is, the second terminal portion side at the end of the second terminal portion 414 side And a bent portion 413.

The second oblique side portion 412 extends obliquely with respect to the second slot accommodating portion 24, and an internal angle β formed with the second slot accommodating portion 24 is an obtuse angle.
The second terminal portion 414 includes an upright portion 416 extending from the second terminal portion side bent portion 413 toward the upper side of the paper surface, a crossover portion 417 bent at a right angle with respect to the upright portion 416 and extending forward of the paper surface, The second connection portion 415 is bent at a right angle with respect to the crossover portion 417 and extends upward in the drawing.

The upright portion 416 is a portion that provides a predetermined insulation distance (gap) between the crossover portion 417 and the axial end of the coil end main body 31a, and the inner angle formed with the second oblique side portion 412 is the second oblique side portion. This is the same as the internal angle β formed by 412 and the second slot storage portion 24.
The crossover portion 417 is a portion that is disposed at a position where the second connection portion 415 is joined to the first connection portion 215 across the coil end body 31 a from the inside to the outside.
The second connection portion 415 is a portion that is joined in contact with the first connection portion 215 of the outer peripheral terminal line 210.
The upright portion 416 and the second connection portion 415 are parallel to the extension line L <b> 2 of the second slot storage portion 24.

The second slot accommodating portion side bent portion 411 is located at the root portion of the inner peripheral side terminal line 410 that is a boundary between the second slot accommodating portion 24 and the inner peripheral side terminal line 410, and the second oblique side portion 412. Is a portion that bends the inner peripheral side terminal line 410 so as to be inclined with respect to the second slot accommodating portion 24.
The second terminal portion side bent portion 413 is located at the boundary between the second oblique side portion 412 and the second terminal portion 414, and is a portion that bends the inner peripheral terminal line 410 so that the upright portion 416 extends upward in the drawing. It is.

FIG. 6 is a partial top schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the first embodiment of the present invention.
FIG. 7 is a partial front schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the first embodiment of the present invention.
FIG. 8 is a partial side schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the first embodiment of the present invention.
7 is a view of FIG. 6 viewed from the direction of arrow A1, and FIG. 8 is a view of FIG. 6 viewed from the direction of arrow A2.

As shown in FIG. 6, in the armature 10 of the present embodiment, the first oblique side portion 212 is indicated by an arc R <b> 1 at the position of the first slot storage portion 23 that leads the outer peripheral side terminal line 210 in the circumferential direction. The armature core 11 extends in the direction of a tangent line L3 that is in contact with the inner peripheral portion (the tooth portion is omitted) of the back yoke 11a.
As shown in FIGS. 6 and 8, the first oblique side portion 212 is further away from the coil end body 31 a in the radial direction as it goes to the first terminal portion side bent portion 213 side.

Further, the first terminal portion 214 extends outward in the axial direction from the first terminal portion side bent portion 213. The first connection portion 215 also extends linearly outward in the axial direction.
Further, the first connecting portion 215 is in contact with the circumferential surface far from the first slot housing portion 23 in contact with the circumferential surface far from the second slot housing portion 24 of the second connecting portion 415, and is connected to the first connecting portion 215. 215 and the second connection portion 415 are joined. That is, the 1st connection part 215 and the 2nd connection part 415 are joined by the surface of the circumferential direction, respectively.
Further, the first terminal portion 214 is parallel to the axial direction.

Further, as shown in FIGS. 7 and 8, the first oblique side portion 212 extends obliquely from the first slot housing portion side bent portion 211 toward the outer side in the axial direction, and is bent at the first terminal portion side. The closer to the portion 213, the farther away from the terminal wire side end face 33 of the armature core 11 in the axial direction.
Moreover, it is preferable that the position of the 1st terminal part side bending part 213 in the axial direction is the same as the position of the edge part of the coil end main body 31a in an axial direction, or the outer side.
However, when the position of the first terminal portion side bent portion 213 in the axial direction is outside the position of the end portion of the coil end main body 31a in the axial direction, the difference in the position in the axial direction is smaller. An increase in the axial size can be prevented.

Further, as shown in FIGS. 6, 7 and 8, the inner peripheral terminal line 410 has a connecting portion 417 straddling the coil end main body 31a in the direction from the inner peripheral side to the outer peripheral side, and the coil end main body 31a. These are arranged with a gap between them in the axial direction.
The second connection portion 415 joined to the first connection portion 215 is bent at the second connection portion side bent portion 418 and extends outward in the axial direction.
The first connection part 215 of the first terminal part 214 and the second connection part 415 of the second terminal part 414 are joined by, for example, Tig welding, and the outer peripheral side terminal line 210 and the inner peripheral side terminal line 410 are connected. Are electrically connected.
The radial gap between the first terminal side bent portion 213 and the coil end main body 31a and the axial gap between the crossover portion 417 and the coil end main body 31a are the first connection from which the insulation coating is removed. This is a size that secures a distance that can maintain insulation between the joint portion of the portion 215 and the second connection portion 415 and the coil end body 31a.

  In the rotating electrical machine 100 of the present embodiment, the first slot housing portion side bent portion 211 of the outer peripheral side terminal wire 210 in the armature 10 is a portion that bends the outer peripheral side terminal wire 210 only once in the circumferential direction, and Since the bending angle with respect to the one-slot housing portion 23 is an obtuse angle, the processing load on this portion is small, and the insulation coating of the conducting wire forming the outer peripheral terminal wire 210 is not damaged. That is, the insulating property of the first slot storage portion side bent portion 211 located closest to the coil end main body 31a is excellent.

Further, the first terminal portion side bent portion 213 which is another bent portion of the outer peripheral side terminal wire 210 is also a portion where the outer peripheral side terminal wire 210 is bent only once, and the bending angle with respect to the first oblique side portion 212 is an obtuse angle. Therefore, the processing load of this part is also small, the insulation coating of the conducting wire forming the outer peripheral side terminal wire 210 is not damaged, and the insulating characteristics are excellent.
In addition, since the first oblique side portion 212 moves away from the coil end body 31a in the radial direction as it goes to the first terminal portion side bent portion 213, the first terminal portion side bent portion 213 is moved away from the coil end body 31a. In this respect, the insulation characteristics are excellent.

Moreover, since the junction part of the 1st terminal part 214 and the 2nd terminal part 414 is separated in the radial direction and the axial direction from the coil end main body 31a, the insulation characteristic of this part is also excellent.
Moreover, since there is a space between the outer peripheral side terminal wire 210 and the coil end main body 31a, heat dissipation is excellent.
In addition, since the first terminal portion 214 extends in the axial direction, the radial size of the armature winding 20 can be reduced.

In addition, the rotating electrical machine 100 according to the present embodiment has excellent insulation properties without providing a special insulator such as insulating paper in the gap between the coil end main body 31a and the outer peripheral terminal wire 210 in the armature 10. Therefore, the manufacturing process can be improved and the manufacturing cost can be reduced.
Of course, a special insulator such as insulating paper may be provided. In this case, the insulating characteristics are further improved.
In the armature of the rotating electrical machine according to the present embodiment, the first oblique side portion of the outer peripheral side end line extends in the direction of the tangent L3, but may be shifted radially outward from the direction of the tangent L3.

Each terminal line of the present embodiment is a conductor having a rectangular cross section, but is not limited to a conductor having a rectangular cross section. In the case of a conductor having a non-rectangular cross section, the first connection portion and the second connection portion are joined in contact with each other.
Further, in the case of a conductor having a rectangular cross section, the terminal line may be bent by applying a force in a direction perpendicular to the pair of side surfaces that are in a relation between the front and back of the terminal line, and the direction in which the terminal line is bent is not shifted.

Embodiment 2. FIG.
The rotating electrical machine of the second embodiment is the same as the rotating electrical machine 100 of the first embodiment, except that the structure of the outer peripheral terminal line and the inner peripheral terminal line is different.
FIG. 9 is a front schematic diagram (a) and a front schematic diagram of the outer peripheral terminal line of the armature winding according to the second embodiment of the present invention, and a top schematic diagram (b) viewed from the direction indicated by arrow Y, and the front. It is the side surface schematic diagram (c) which looked at the schematic diagram from the direction shown by arrow X.

As shown in FIG. 9, the outer peripheral side terminal wire 220 of the present embodiment is the same as that of the first embodiment except that the distal end portion of the first terminal portion 224 is bent and the bent portion is used as the first connection portion 225. It is the same as that of the outer peripheral terminal line 210.
The direction in which the distal end portion of the first terminal portion 224 is bent is a direction perpendicular to the virtual plane including the first slot housing portion 23 and the first oblique side portion 212.
Although not shown, the inner peripheral side terminal wire 420 of the present embodiment is such that the second connection portion 425 of the second terminal portion 424 is not bent with respect to the crossover portion 417, and extends linearly from the crossover portion 417. Except for this, it is the same as the inner peripheral side terminal line 410 of the first embodiment.

FIG. 10 is a partial top schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the second embodiment of the present invention.
FIG. 11 is a partial front schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the second embodiment of the present invention.
FIG. 12 is a partial side schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the second embodiment of the present invention.
11 is a view of FIG. 10 viewed from the direction of arrow A1, and FIG. 12 is a view of FIG. 10 viewed from the direction of arrow A2.

As shown in FIGS. 10, 11, and 12, the armature 60 of the rotating electrical machine according to the present embodiment has the first connection portion 225 of the outer peripheral side terminal wire 220 extending in the outer peripheral side direction of the armature 60. The second connection portion 425 of the inner peripheral side terminal line 420 extends linearly from the crossover portion 417 and extends in the outer peripheral side direction.
And the 1st connection part 225 of the outer peripheral side terminal line 220 and the 2nd connection part 425 of the inner peripheral side terminal line 420 are joined so that the surface of each circumferential direction may be contact | connected.

FIG. 13 is a partial front schematic view for explaining a second arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the second embodiment of the present invention. It is a corresponding figure.
FIG. 14 is a partial side schematic view illustrating a second arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the second embodiment of the present invention. It is a corresponding figure.
As shown in FIGS. 13 and 14, in the second arrangement state according to the second embodiment, the first connection part 225 of the outer peripheral side terminal line 220 and the second connection part 425 of the inner peripheral side terminal line 420 are connected. , The surfaces in the axial direction are in contact with each other.
As in the second arrangement state, the axial direction surfaces of the first connection portion 225 and the second connection portion 425 are joined to each other to join the circumferential direction (the left-right direction in FIG. 13 and the depth in FIG. 14). The distance between the terminal line connecting portions adjacent to each other in the direction) can be increased, and the insulation is improved.

In the rotating electrical machine of the present embodiment as well, the first slot housing side bent portion at the position closest to the coil end main body of the outer peripheral terminal wire in the armature 60 is the same as in the first embodiment, and the processing load is small. Insulation is excellent because the insulation of the conductor is not damaged.
Further, since the first terminal portion side bent portion is separated from the coil end in the radial direction, the insulating characteristics of this portion are also excellent.
Moreover, since the junction part of a 1st connection part and a 2nd connection part is separated from the coil end main body in radial direction and an axial direction, the insulation characteristic of this part is also excellent.
Moreover, since the front-end | tip part of a 1st terminal part is bent toward the radial direction outer side, the size of the axial direction of an armature can be made small.

The rotating electrical machine of the present embodiment is also excellent in insulation without providing a special insulator such as insulating paper in the gap between the coil end main body and the outer peripheral side terminal wire in the armature. Improvement and reduction of manufacturing cost can be achieved.
Of course, a special insulator such as insulating paper may be provided. In this case, the insulating characteristics are further improved.

Embodiment 3 FIG.
The rotating electrical machine of the third embodiment is the same as the rotating electrical machine 100 of the first embodiment, except that the structure of the outer peripheral terminal line is different.
FIG. 15 is a front schematic diagram (a) of the outer peripheral terminal line of the armature winding according to the third embodiment of the present invention and a top schematic diagram (b) of the front schematic diagram viewed from the direction indicated by the arrow Y. is there.

As shown in FIG. 15, the outer peripheral terminal line 230 of the present embodiment is implemented except that a radial bent portion 236 is provided at a portion of the first oblique side portion 232 close to the first terminal portion side bent portion 213. This is the same as the outer peripheral side terminal line 210 of the first embodiment.
That is, as shown in FIG. 15 (b), the outer peripheral terminal line 230 of the present embodiment is shifted from the position of the first slot storage portion 23 to the upper side of the drawing.
Although not shown, the inner peripheral terminal line is the same as the inner peripheral terminal line 410 of the first embodiment.

FIG. 16 is a partial top schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the third embodiment of the present invention.
FIG. 17 is a partial front schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the third embodiment of the present invention.
FIG. 17 is a view of FIG. 16 viewed from the direction of the arrow A2.

As shown in FIG. 16, the armature 70 of the rotating electrical machine according to the present embodiment includes a first terminal portion side bent portion from the first slot housing portion side bent portion 211 in the first oblique side portion 232 of the outer peripheral side terminal line 230. The armature 10 is the same as the armature 10 of the rotating electrical machine 100 according to the first embodiment except that a radial bent portion 236 that bends the first hypotenuse 232 inward in the radial direction is provided at a position close to 213.
Similarly to the first hypotenuse part 212 of the first embodiment, the first hypotenuse part 232 of the present embodiment also extends from the first slot housing part 23, so The further away, the farther away from the coil end body 31a in the radial direction.

The radial bent portion 236 is also separated from the coil end body 31a in the radial direction.
Further, the angle at which the first oblique side 232 is bent inward in the radial direction at the radial bent portion 236 is an obtuse angle, and the gap W1 is provided between the first terminal portion side bent portion 213 and the coil end body 31a in the radial direction. Is the angle that remains.
Since the angle at which the first hypotenuse 232 is bent by the radial bent portion 236 is as described above, the processing load applied to the outer peripheral terminal wire 230 by the radial bent portion 236 is small, and the conductor forming the outer peripheral terminal wire 210 The insulation coating is not damaged.

  In the present embodiment, one radial bent portion 236 is provided on the first oblique side 232, but a plurality of radial bent portions 236 may be provided. In this case, the number of places where the outer peripheral side terminal wire 230 is bent increases, but the angle at which the outer peripheral side terminal wire 230 is bent at each radially bent portion becomes smaller, so that the processing load at each point is further reduced, and the outer peripheral side terminal is reduced. The insulation coating of the conducting wire forming the wire 210 is not damaged at the radially bent portion.

In the rotating electrical machine of the present embodiment as well, the first slot housing side bent portion located closest to the coil end main body of the outer peripheral terminal wire in the armature 70 is the same as in the first embodiment, and the processing load is small. Insulation is excellent because the insulation of the conductor is not damaged.
Moreover, since the radial direction bending part and the 1st terminal part side bending part are separated from the coil end main body in radial direction, the insulation characteristic of these parts is also excellent.
Moreover, since the junction part of a 1st terminal part and a 2nd terminal part is separated from the coil end main body in radial direction and an axial direction, the insulation characteristic of this part is also excellent.
Since the radial bend is provided on the first oblique side, the radial size of the armature winding can be further reduced.

In the present embodiment, the first terminal portion of the outer peripheral terminal line is the first terminal portion of the first embodiment, and the inner peripheral terminal line is the inner peripheral terminal line of the first embodiment. One terminal portion may be the first terminal portion of the second embodiment, and the inner peripheral side terminal line may be the inner peripheral side terminal line of the second embodiment.
In this case, the axial size of the armature can be reduced.
The rotating electrical machine of the present embodiment is also excellent in insulation without providing a special insulator such as insulating paper in the gap between the coil end main body and the outer peripheral side terminal wire in the armature. Improvement and reduction of manufacturing cost can be achieved.
Of course, a special insulator such as insulating paper may be provided. In this case, the insulating characteristics are further improved.

Embodiment 4 FIG.
The rotating electrical machine of the fourth embodiment is the same as the rotating electrical machine 100 of the first embodiment except that the structure of the outer peripheral terminal line is different.
FIG. 18 is a front schematic diagram (a) of the outer peripheral terminal line of the armature winding according to the fourth embodiment of the present invention and a top schematic diagram (b) of the front schematic diagram viewed from the direction indicated by the arrow Y. is there.

As shown in FIG. 18, the outer peripheral terminal line 240 of the present embodiment is the same as the outer peripheral terminal line 210 of the first embodiment, except that the first oblique side portion 242 is bent in the side surface direction.
That is, as shown in FIG. 18B, the outer peripheral terminal line 240 of the present embodiment has a first oblique side portion 242 having an arc shape when viewed from above.
Although not shown, the inner peripheral terminal line is the same as the inner peripheral terminal line 410 of the first embodiment.

FIG. 19 is a partial top schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the fourth embodiment of the present invention.
FIG. 20 is a partial schematic front view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the fourth embodiment of the present invention.
FIG. 20 is a view of FIG. 19 viewed from the direction of the arrow A2.

As shown in FIG. 19, the armature 80 of the present embodiment has a back surface of the armature core 11 in which the first oblique side portion 242 of the outer peripheral terminal line 240 is indicated by an arc R1 when viewed from the outside in the axial direction. The armature 10 is the same as that of the armature 10 of the first embodiment except that it has a smaller curvature than the curvature of the inner peripheral portion of the yoke 11a and has an arc shape that is bent inward in the radial direction.
The first oblique side portion 242 of the present embodiment also extends in the circumferential direction from the first slot housing portion 23, and is a circle that is bent inward in the radial direction with a smaller curvature than the curvature of the inner peripheral portion of the back yoke 11a. Since it is arcuate, it is farther from the coil end body 31a in the radial direction as it goes to the first terminal portion side bent portion 213 side.

In the rotating electrical machine of the present embodiment, the bending portion on the first slot storage portion side that is closest to the coil end main body of the outer peripheral terminal wire in the armature 80 is the same as in the first embodiment, and the processing load is small. Insulation is excellent because the insulation of the conductor is not damaged.
Further, since the first terminal portion side bent portion is separated from the coil end main body in the radial direction, the insulating characteristics of this portion are also excellent.
Moreover, since the junction part of a 1st terminal part and a 2nd terminal part is separated from the coil end main body in radial direction and an axial direction, the insulation characteristic of this part is also excellent.
Since the first oblique side portion has an arc shape that is bent inward in the radial direction, the size of the armature winding in the radial direction can be further reduced.

In the present embodiment, the first terminal portion of the outer peripheral terminal line is the first terminal portion of the first embodiment, and the inner peripheral terminal line is the inner peripheral terminal line of the first embodiment. One terminal portion may be the first terminal portion of the second embodiment, and the inner peripheral side terminal line may be the inner peripheral side terminal line of the second embodiment.
In this case, the axial size of the armature can be reduced.
The rotating electrical machine of the present embodiment is also excellent in insulation without providing a special insulator such as insulating paper in the gap between the coil end main body and the outer peripheral side terminal wire in the armature. Improvement and reduction of manufacturing cost can be achieved.
Of course, a special insulator such as insulating paper may be provided. In this case, the insulating characteristics are further improved.

Embodiment 5. FIG.
The rotating electrical machine of the fifth embodiment is the same as the rotating electrical machine 100 of the first embodiment, except that the joining structure of the first connecting portion of the outer peripheral side terminal line and the second connecting portion of the inner peripheral side terminal line is different. .
FIG. 21 is a partial top schematic view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the fifth embodiment of the present invention.
FIG. 22 is a partial schematic front view for explaining an arrangement state of the outer peripheral side terminal line and the inner peripheral side terminal line in the armature of the rotating electrical machine according to the fifth embodiment of the present invention.
FIG. 22 is a view of FIG. 21 viewed from the direction of arrow A3.

  As shown in FIG. 21 and FIG. 22, the armature 90 of the present embodiment includes a first connection part 215 of the outer peripheral side terminal line 210 and a second connection part 415 of the inner peripheral side terminal line 410. The armature 10 of the first embodiment is the same as the armature 10 except that the inner surface in the radial direction of the connecting portion 215 and the outer surface in the radial direction of the second connecting portion 415 are in contact with each other. The rotating electrical machine of the present embodiment has the same effects as the rotating electrical machine 100 of the first embodiment.

  In the present embodiment, for example, the connecting portion 417 of the inner peripheral side terminal line 410 is shortened, and the inner angle α formed by the first slot storage portion 23 and the first oblique side portion 212 is reduced to reduce the first connecting portion 215. Is moved in the direction in which the first oblique side portion 212 extends in the circumferential direction, and the inner angle β formed by the second slot accommodating portion 24 and the second oblique side portion 412 is reduced, so that the second connection portion 415 is moved in the circumferential direction. By moving at least one of the two oblique sides 412 in the extending direction, the first connecting portion 215 and the second connecting portion 415 are in contact with each other in the radial direction.

FIG. 23 is a schematic top view illustrating a joint portion between the outer peripheral side terminal line and the inner peripheral side terminal line that are adjacent to each other in the armature of the rotating electrical machine according to the fifth embodiment of the present invention.
FIG. 24 is a schematic top view showing a joint portion between the outer peripheral side terminal line and the inner peripheral side terminal line that are adjacent to each other in the armature of the rotating electrical machine according to the first embodiment of the present invention.
FIG. 23 shows a joined body 50 in which the first connecting portion 215 and the second connecting portion 415 are joined in the radial direction and the back yoke 11a of the armature, and others are omitted and not shown.
In FIG. 24, the joined body 55 and the armature back yoke 11a in which the first connecting portion 215 and the second connecting portion 415 are joined in the circumferential direction are shown, and others are omitted and not shown.

As shown in FIGS. 23 and 24, the circumferential gap W <b> 2 between the adjacent bonded bodies 50 is larger than the circumferential gap W <b> 3 between the adjacent bonded bodies 55.
In other words, the rotating electrical machine of the present embodiment can increase the circumferential distance of the joined body between the adjacent first connection part and the second connection part even when the diameter of the armature core is small. It can be improved.
The structure in which the first connection portion and the second connection portion are joined in the radial direction can be applied to the rotating electrical machines of the third embodiment and the fourth embodiment, and has the same effect.

Embodiment 6 FIG.
The manufacturing method of the rotating electrical machine of the present embodiment is a manufacturing method including the following steps.
First, in the first step, the slot accommodating portion of the armature winding is disposed in the slot of the armature core 11.
In the second step, the outer peripheral side end line extending from the slot accommodating portion on the root portion side of the slot is processed, bent at an obtuse angle with respect to the slot accommodating portion on the root portion side of the slot, and obliquely extended. One oblique side portion and a first terminal portion that is bent at an obtuse angle with respect to the first oblique side portion and extends outward in the axial direction are formed.

In the third step, the inner peripheral terminal line extending from the slot accommodating portion on the tip end side of the slot is processed, bent at an obtuse angle with respect to the slot accommodating portion on the tip end side of the slot, and extended obliquely. Two oblique sides and a second terminal portion that is bent at an obtuse angle with respect to the second oblique side and extends outward in the axial direction are formed.
In the fourth step, the second terminal portion is bent outward in the radial direction, and the coil end body on the side where the first and second terminal wires extend is straddled with a gap in the axial direction, and the armature core And a second connecting portion is formed by bending the connecting portion outward in the axial direction.

In the fifth step, the first connection portion on the distal end side of the first terminal portion and the second connection portion on the distal end side of the second terminal portion are brought into contact with each other, and the inner peripheral terminal line and the coil end main body are contacted with each other. After arranging the shielding object between the outer peripheral side terminal wire and the coil end main body, the first connection portion and the second connection portion are joined by welding to form an armature.
In the sixth step, a predetermined gap is provided on the inner peripheral side of the armature produced by arranging the armature windings on the armature core, and the rotor mounted on the rotating shaft is rotatably installed. To do.

FIG. 25 is a schematic diagram for explaining an effect in the method for manufacturing a rotating electrical machine according to the sixth embodiment of the present invention.
FIG. 25 illustrates the armature 10 of the first embodiment.
In the fifth step in the method for manufacturing the rotating electrical machine of the present embodiment, as shown in FIG. 25, between the inner peripheral side terminal wire 410 and the coil end main body 31a and between the outer peripheral side terminal wire 210 and the coil end main body 31a. The shielding object 58 is arrange | positioned between and the 1st connection part 215 and the 2nd connection part 415 are joined by welding.
That is, since the shield 58 is used, the coil end main body 31a can be protected from the arc and heat generated at the time of joining, and the insulation covering of the turn portion forming the coil end main body 31a is prevented from being damaged by the arc or heat. Thus, it is possible to prevent the insulation of the rotating electrical machine from being lowered.

  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.

  The rotating electrical machine of the present invention is excellent in insulation at the coil end of the armature, and is therefore used for electrical equipment that requires small size and high output and reliability.

Claims (9)

A rotating electric machine comprising an armature and a rotor, wherein the armature includes an armature core and an armature winding disposed in a slot of the armature core;
The armature winding is composed of a slot housing portion that is housed in a slot of the armature core and a coil end that protrudes from an axial end surface of the armature core,
The coil end on the side from which the terminal wire is led out from the slot housing portion is a terminal wire side coil end,
The terminal wire side coil end includes a coil end main body that connects between the slot accommodating portions accommodated in the slots at a predetermined interval in the circumferential direction, and a radially outer peripheral side of the slot. The outer peripheral side terminal line led out from the first slot accommodating part at the base part of the slot and the inner peripheral side terminal line led out from the second slot accommodating part at the tip part on the inner peripheral side in the radial direction of the slot And consists of
The outer peripheral terminal line includes a first oblique side portion, a first terminal portion, a first slot accommodating portion side bent portion at a boundary between the first oblique side portion and the first slot accommodating portion, and the first oblique side. And a first terminal portion side bent portion at the boundary of the first terminal portion,
The first oblique side portion extends obliquely outward in the axial direction from the first slot housing portion side bent portion, and the first terminal portion side bent portion is separated from the coil end body in the radial direction. An internal angle formed by the first oblique side portion and the first slot housing portion is an obtuse angle,
The first terminal portion extends outward in the axial direction from the bent portion on the first terminal portion side, and an inner angle formed by the first terminal portion and the first oblique side portion is the first oblique side portion and the first oblique portion. It is the same as the inner angle formed with the one-slot housing part, and the tip part of the first terminal part is the first connection part,
The inner peripheral terminal line includes a second oblique side portion, a second terminal portion, and a second terminal portion side bent portion at a boundary between the second oblique side portion and the second terminal portion,
The second terminal portion extends from the second terminal portion side bent portion to the outside in the axial direction, extends from the upright portion to the outside in the radial direction, and has a gap in the axial direction to straddle the coil end body. It consists of a crossover part, the tip of the crossover part is the second connection part,
The first connection portion of the outer peripheral terminal line led out from the first slot storage portion, the slot in which the first slot storage portion is stored, and a position spaced apart at a predetermined interval in the circumferential direction. A rotating electrical machine in which the second connection portion of the inner peripheral terminal line led out from the second slot housing portion housed in the slot is joined. 2. The rotating electrical machine according to claim 1, wherein the first oblique side portion extends in a tangential direction in contact with an inner peripheral portion of a back yoke of the armature core at a position of the first slot housing portion in a circumferential direction. A radial bending portion for bending the first oblique side portion inward in the radial direction is provided at a position closer to the first terminal portion side bending portion than the first slot accommodating portion side bending portion of the first oblique side portion. The rotating electrical machine according to claim 1 or 2. 2. The rotating electrical machine according to claim 1, wherein the first oblique side portion has an arc shape that is curved inward in a radial direction with a curvature smaller than a curvature of an inner peripheral portion of a back yoke of the armature core. The first connection portion extends linearly outward in the axial direction, and the second connection portion is bent at a right angle to the transition portion and extends outward in the axial direction. Item 5. The rotating electrical machine according to any one of items 4 to 4. The first connecting portion extends by bending the first terminal portion perpendicularly to the outside in the radial direction, and the second connecting portion extends linearly from the transition portion to the outside in the radial direction. The rotating electrical machine according to any one of claims 1 to 4. The circumferential surface of the first connection portion remote from the first slot storage portion is in contact with the circumferential surface of the second connection portion far from the second slot storage portion, and the first connection portion and the first connection portion The rotating electrical machine according to any one of claims 1 to 6, wherein the two connecting portions are joined. 2. The first connection portion and the second connection portion are joined by bringing a radially inner surface of the first connection portion into contact with a radially outer surface of the second connection portion. The rotating electrical machine according to claim 5. A method of manufacturing a rotating electrical machine comprising an armature and a rotor, wherein an armature winding is disposed in a slot of an armature core to form the armature,
A first step of disposing a slot accommodating portion of the armature winding in the slot of the armature core;
A first end extending obliquely by processing an outer peripheral terminal line extending from the slot accommodating portion on the root portion side of the slot and bending it at an obtuse angle with respect to the slot accommodating portion on the root portion side of the slot. A second step of forming a hypotenuse portion and a first terminal portion that is bent at an obtuse angle with respect to the first hypotenuse portion and extends in the axially outward direction;
The inner peripheral terminal line extending from the slot accommodating portion on the tip end side of the slot is processed, bent at an obtuse angle with respect to the slot accommodating portion on the tip end side of the slot, and obliquely extended. A third step of forming two oblique sides and a second terminal portion that is bent at an obtuse angle with respect to the second oblique sides and extends outward in the axial direction;
Bending the second terminal portion outward in the radial direction and straddling the coil end body on the side where the outer peripheral terminal wire and the inner peripheral terminal wire extend with a gap in the axial direction; A fourth step of forming a transition part extending in the outer direction of the core and a second connection part extending by bending the transition part in the outer direction in the axial direction;
The first connection portion on the distal end side of the first terminal portion and the second connection portion on the distal end side of the second terminal portion are brought into contact with each other, and the inner peripheral terminal wire and the coil end body are contacted with each other. After the shield is disposed between the outer peripheral side terminal wire and the coil end body, the first connecting portion and the second connecting portion are joined by welding to form the armature. 5 steps,
A sixth step in which a predetermined gap is provided on the inner peripheral side of the armature, and the rotor mounted on the rotation shaft is rotatably installed;
The manufacturing method of the rotary electric machine provided with.

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