JP7433153B2 - A stator connection plate for a rotating electric machine, a stator for a rotating electric machine, a rotating electric machine, a method for manufacturing a connection plate for a stator for a rotating electric machine, a method for manufacturing a stator for a rotating electric machine, and a method for manufacturing a rotating electric machine - Google Patents

Description

The present application relates to a connection plate for a stator of a rotating electric machine, a stator for a rotating electric machine, a method for manufacturing a connection plate for a stator of a rotating electric machine, a method for manufacturing a stator for a rotating electric machine, and a method for manufacturing a rotating electric machine.

Conventionally, there has been a method for manufacturing a rotating electric machine having a rotor, a stator, and a wiring board that connects the ends of the windings of the stator in a predetermined wiring pattern, the wiring board comprising electrically conductive conductors arranged in a spiral shape. A first step of molding, a second step of covering at least a part of the surface of the spirally molded conductor with an insulating material, and a third step of dividing the conductor coated with the insulating material at a predetermined circumferential position. A manufacturing method for a rotating electrical machine manufactured by a manufacturing process including the following has been proposed (see, for example, Patent Document 1).

In the stator connection plate of a rotating electrical machine, the stator of a rotating electrical machine, a rotating electrical machine, a method of manufacturing a connection plate of a stator of a rotating electrical machine, a method of manufacturing a stator of a rotating electrical machine, and a method of manufacturing a rotating electrical machine, a conductor is disclosed in Patent Document 1. After forming the conductor into a spiral shape and partially covering it with an insulating material, the conductor is cut at a position in the circumferential direction. A through hole is provided in the conductor, and the winding end of the stator is inserted into the through hole and connected to the conductor by soldering.

Patent No. 5348199

In the spirally formed conductor described in Patent Document 1, the conductors are arranged on the same plane perpendicular to the axial direction of the stator, so in order to ensure the insulation distance between adjacent conductors, the coil must be radially shaped. Since it is necessary to increase the size, there is a problem in that the outer diameter of the rotating electric machine becomes large.

This application discloses a technology for solving the above-mentioned problems, and provides a connection plate for a stator of a rotating electrical machine, a stator for a rotating electrical machine, and a rotating electrical machine that can reduce the outer diameter of the rotating electrical machine and downsize the rotating electrical machine. An object of the present invention is to provide a method for manufacturing an electrical machine, a wiring board for a stator of a rotating electrical machine, a method for producing a stator for a rotating electrical machine, and a method for producing a rotating electrical machine.

The connection plate of the stator of the rotating electrical machine disclosed in this application is
A connection plate for a stator of a rotating electrical machine, comprising a connecting wire that connects terminal wires of a plurality of coils wound around teeth of a stator of the rotating electrical machine,
A pedestal portion divided into multiple parts in the circumferential direction,
a connecting portion connecting the circumferentially adjacent pedestal portions,
A plurality of guide grooves for guiding the connection line are provided in the pedestal part in parallel to the circumferential direction,
The axial position of the bottom of each of the guide grooves becomes higher in order from the outer side to the inner side in the radial direction.
Furthermore, the stator of the rotating electrical machine disclosed in this application is
comprising a wiring board for a stator of the rotating electric machine,
A plurality of coil windings including a split core divided in the circumferential direction, an insulator attached to both axial end surfaces of the split core, and the coil wound around the teeth of the split core via the insulator. Equipped with a body,
The insulator includes an outer flange portion that covers an axial end surface of a yoke portion of the split core, an inner flange portion that covers an axial end surface of a radially inner tip portion of the tooth portion, and an axial end surface of the tooth portion. and a teeth end face covering part,
The connection plate is positioned and arranged in the radial direction on the radially inner edge of the end face of the inner flange and the axial end face of the outer flange.
Furthermore, the rotating electrical machine disclosed in this application is
A stator of a rotating electric machine,
The stator includes a rotor rotatably supported with an outer circumferential surface facing the inner circumferential surface of the stator.
Further, the method for manufacturing a wiring board for a stator of a rotating electric machine disclosed in the present application includes:
one conductor is arranged in the outermost or innermost guide groove of all the pedestal parts,
Subsequently, a conductor placement step of placing the conductor in the guide grooves of all the pedestals that are radially adjacent to the guide grooves in which the conductors have already been placed;
and a cutting step of cutting one of the conductors between the adjacent pedestals.
Furthermore, the method for manufacturing a stator of a rotating electrical machine disclosed in the present application includes:
a wiring board arrangement step of arranging the wiring board on the plurality of coil winding bodies arranged in an annular shape;
a terminal line arrangement step of arranging the terminal line above the connection line to be welded in the axial direction;
Insert a first electrode under the connection wire to be welded in the axial direction,
The second electrode is lowered from above the terminal wire to be welded in the axial direction to between the upper surface of the first electrode so as to sandwich the connection wire and the terminal wire to be welded in the axial direction. and a connecting step of welding the terminal wire and the connecting wire.
Furthermore, the method for manufacturing a rotating electric machine disclosed in the present application includes:
The rotor is rotatably disposed with the outer circumferential surface of the rotor facing the inner circumferential surface of the stator.

According to the wiring plate of a stator of a rotating electrical machine, the stator of a rotating electrical machine, a method of manufacturing a wiring plate of a stator of a rotating electrical machine, a method of manufacturing a stator of a rotating electrical machine, and a method of manufacturing a rotating electrical machine, which are disclosed in the present application, The outer diameter of the electric machine can be reduced and the rotating electric machine can be made smaller.

1 is a schematic cross-sectional view showing a schematic configuration of a rotating electric machine according to a first embodiment; FIG. FIG. 2 is a perspective view of a divided laminated core according to the first embodiment. FIG. 2 is a perspective view of a connection-side insulator as an insulating member attached to the divided laminated core according to the first embodiment. FIG. 3 is a plan view of a connection-side insulator as an insulating member attached to the divided laminated core according to the first embodiment. FIG. 3 is a perspective view of an insulator on the opposite side of the connection as an insulating member attached to the divided laminated core according to the first embodiment. 1 is a perspective view of a coil-wound body according to Embodiment 1. FIG. FIG. 2 is a plan view of a wiring board according to the first embodiment. FIG. 3 is a side view of the wiring board according to the first embodiment. 1 is a perspective view of a wiring board according to Embodiment 1. FIG. 2 is a flowchart showing a process of forming a connection line of a wiring board and a process of connecting a wiring board and a coil according to the first embodiment. FIG. 3 is a plan view showing a state in which a conductor is fixed on the pedestal portion of the wiring board according to the first embodiment. FIG. 6 is a diagram showing a state in which the conductor after being fixed to the pedestal according to the first embodiment is cut to form a plurality of connection lines. FIG. 3 is a wiring diagram of a coil according to the first embodiment. FIG. 2 is a perspective view showing a state in which a plurality of coil wrapping bodies arranged in an annular shape according to the first embodiment are fitted into a frame. FIG. 3 is a cross-sectional view of the main parts of the wiring board and the coil winding body before welding according to the first embodiment. FIG. 2 is a perspective view of a molded stator according to the first embodiment. FIG. 7 is a plan view showing a state in which a conductor is fixed on a pedestal portion of a wiring board according to a second embodiment. FIG. 7 is a diagram showing a state in which the conductor after being fixed to the pedestal according to Embodiment 2 is cut to form a plurality of connection lines. FIG. 3 is a wiring diagram of a coil according to a second embodiment.

Embodiment 1.
Below, a connection plate for a stator of a rotating electric machine, a stator for a rotating electric machine, a method for manufacturing a connection plate for a stator of a rotating electric machine, a method for manufacturing a stator for a rotating electric machine, and a method for manufacturing a rotating electric machine according to the first embodiment will be described with reference to the drawings. I will explain using
In this specification, unless otherwise specified, "axial direction", "circumferential direction", "radial direction", "inside", "outside", "inner circumferential surface", and "outer circumferential surface" refer to the stator. "axial direction", "circumferential direction", "radial direction", "inside", "outside", "inner circumferential surface", and "outer circumferential surface". In addition, in this specification, when referring to "upper" or "lower" unless otherwise specified, it is assumed that the reference location is a plane perpendicular to the axial direction, and that the center point of the stator is included with that plane as the boundary. The side that is exposed is called "lower" and the opposite side is called "upper." Furthermore, when comparing heights, the one with the longer distance from the center of the stator is defined as "higher". Note that although the following description uses a split laminated core, an integrated split core may also be used.

FIG. 1 is a schematic cross-sectional view showing a schematic configuration of a rotating electrical machine 100 according to a first embodiment.
FIG. 2 is a perspective view of the divided laminated core 11 that constitutes the stator 10.
FIG. 3A is a perspective view of the connection-side insulator 13 as an insulating member attached to the divided laminated core 11.
FIG. 3B is a plan view of the connection side insulator 13 as an insulating member attached to the divided laminated core 11.
FIG. 3C is a perspective view of the non-connection side insulator 14 as an insulating member attached to the divided laminated core 11.
FIG. 4 is a perspective view of the coil wrapping body 11A.

As shown in FIG. 1, the rotating electrical machine 100 includes a stator 10, a rotor 30 that is rotatably supported with its outer circumferential surface facing the inner circumferential surface of the stator 10, and a frame 60 that houses the stator 10. The rotor 30 includes a plurality of permanent magnets. The stator 10 includes a plurality of coil winding bodies 11A combined in an annular shape (see FIG. 4) and a connection plate 17 (see FIG. 1), a non-connection side bracket 50a that holds the rotor 30, a connection side bracket 50b, and a power supply connector 40. The plurality of coil winding bodies 11A combined in an annular shape are press-fitted or shrink-fitted into the frame 60. Note that the "conductor W" used in the following description refers to the conductor before being cut into the plurality of connection wires 15. That is, each connection wire 15 is obtained by cutting the conductor W into a plurality of pieces.

As shown in FIGS. 2 and 4, the coil winding body 11A includes a divided laminated core 11, a connection side insulator 13 attached to one end surface 11s1 of the connection side of the divided laminated core 11 in the axial direction Z, and a divided laminated core 11A. The non-wire connection side insulator 14 is mounted on the other end surface 11s2 (the side without the connection part) of the core 11 in the axial direction Z, and the coil 12 is wound around the divided laminated core 11.

The divided laminated core 11 is formed by laminating a plurality of core pieces 11p made of magnetic steel plates in the axial direction Z. The divided laminated core 11 includes a yoke portion 11a extending in the circumferential direction Y of the stator 10, a tooth portion 11b protruding inward in the radial direction X from the inner peripheral surface of the yoke portion 11a, and an inner tip of the tooth portion 11b in the radial direction X. and shoe portions 11c that protrude to opposite sides in the circumferential direction Y, respectively.

In the following description, when referring to both the connection side insulator 13 and the non-connection side insulator 14, they will be referred to as insulators 13 and 14.
As shown in FIGS. 3 and 4, the connection side insulator 13 and the non-connection side insulator 14 differ in some shapes.

First, the configuration common to the insulators 13 and 14 will be explained.
The insulators 13 and 14 include outer flange portions 13a and 14a, inner flange portions 13c and 14c, and tooth end surface covering portions 13b and 14b.

The outer flange parts 13a and 14a cover the end surface 11as of the yoke part 11a in the axial direction Z, and protrude upward in the axial direction Z. The inner flange portions 13c and 14c cover an end surface 11bins in the axial direction Z of the inner tip portion of the tooth portion 11b in the radial direction X and an end surface 11cs in the axial direction Z of the shoe portion 11c, and stand out. The tooth end face covering parts 13b and 14b each cover the end face 11bs of the tooth part 11b in the axial direction Z.

The outer flange portion 13a of the connection side insulator 13 has a first protrusion 13p1 protruding upward in the axial direction Z at one end in the circumferential direction Y, and a first protrusion 13p1 protruding upward in the axial direction Z at the center in the circumferential direction Y. 2 protrusions 13p2. A groove 13d for drawing out the terminal wire 12t of the coil 12 outward in the radial direction X is formed between the first protrusion 13p1 and the second protrusion 13p2.

The terminal wire 12t pulled out from the groove 13d to the outside in the radial direction After being routed outside in the direction X, it is bent upward in the axial direction Z.

As shown in FIGS. 3A and 3B, the heights of the outer flange 13a and the inner flange 13c in the axial direction Z are the same. Further, there is a space inside the first protrusion 13p1 and the second protrusion 13p2 of the outer collar portion 13a in the radial direction X. Therefore, the inner edge 13f in the radial direction X of the end surface 13as in the axial direction Z of the outer collar portion 13a is flush with the circumferential direction Y. On the end surface 13cs of the inner flange 13c in the axial direction Z and the above-mentioned edge 13f of the outer flange 13a, a connection plate 17, which will be described later, is arranged with its outer peripheral surface positioned by the first protrusion 13p1 and the second protrusion 13p2. be done.

The coil 12 is wound around the teeth portion 11b of the divided laminated core 11 via insulators 13 and 14. A sheet-like insulating member (not shown) is arranged between the side surface of the teeth portion 11b in the circumferential direction Y and the coil 12 wound around it.

FIG. 5A is a plan view of the wiring board 17.
FIG. 5B is a side view of the wiring board 17.
FIG. 5C is a perspective view of the wiring board 17.
The wiring board 17 connects the terminal wires 12t of the coil 12 wound on the coil winding body 11A to form a three-phase AC U, V, and W phase coil group, and further connects these to the neutral point. It is used to guide a plurality of connecting wires 15 connected to the power supply connector 40 and to connect the connecting wires 15 to a connecting wire 16 that further connects to the power connector 40 .

The connection plate 17 includes a pedestal portion 17A made of an insulator divided into a plurality of parts in the circumferential direction Y, a connecting portion 17B made of an insulator that connects the pedestal parts 17A adjacent to each other in the circumferential direction Y, and a plurality of connection wires 15. Equipped with. The connecting portion 17B connects the inner end portions in the radial direction X and the upper end portions in the axial direction Z of the adjacent pedestal portions 17A.

In the upper end surface 17As of the pedestal portion 17A, the height in the axial direction Z of the inner part in the radial direction X is set higher than the height in the axial direction Z of the outer part in the radial direction X. A plurality of guide grooves 17a for guiding the plurality of connection lines 15 are provided in the pedestal portion 17A in parallel to the circumferential direction Y.

Therefore, the position of the bottom 17ad of each guide groove 17a in the axial direction Z becomes higher in order from the outside to the inside in the radial direction X. Further, the positions in the axial direction Z of the guide grooves 17a of each pedestal portion 17A that are located at the same position in the radial direction X are on the same plane perpendicular to the axial direction Z.

As shown in FIGS. 5A to 5C, a space R1 exists between adjacent pedestals 17A. This space R1 is used to cut the conductor W in the process of forming a group of U, V, and W phase coils of a three-phase AC, and also creating a plurality of connection wires 15 that connect these to a neutral point. .

As shown in FIGS. 5B and 5C, in a side view of the connection plate 17 viewed in the radial direction X, a space R2 penetrating in the radial direction X exists below the connecting portion 17B in the axial direction Z. The space R2 is used for inserting a welding electrode into the lower part of the connection plate 17 from inside the stator 10 when welding the connection wire 15.

Further, the outer circumferential surface 17Bout of the connecting portion 17B in the radial direction X is recessed inward in the radial direction X from the inner side surface 17ain of the guide groove 17a that is located on the innermost side in the radial direction X of the pedestal portion 17A. This is a structure for preventing the electrode that contacts the connection wire 15 from above in the axial direction Z from interfering with the connecting portion 17B when welding the connection wire 15.

A locking portion 17k is provided at the upper end in the axial direction Z of the inner wall of one pedestal portion 17A. The locking portion 17k is used to lock the winding start end S of the conductor W formed in a spiral shape in advance when the conductor W is arranged in the guide grooves 17a formed in plurality in the radial direction X. Note that the guide groove 17a is not provided in the pedestal portion 17A provided with the locking portion 17k. Further, in the following explanation, the locking portion 17k is provided on the inside in the radial direction X, but it may be provided on the outside.

FIG. 6 is a flowchart showing the process of forming the connection wire 15 and the process of connecting the connection plate 17 and the coil 12.
FIG. 7 is a plan view showing a state in which the conductor W is fixed on the pedestal portion 17A of the wiring board 17.
First, the winding start end S of one conductor W is fixed to the locking part 17k. Here, when one conductor W formed in a spiral shape in advance is arranged on the tangent plate 17, the first round from the inside of the conductor W, which has three rounds, is rotated clockwise in the circumferential direction Y to the adjacent pedestal part 17A. Starting from , it is accommodated in the innermost guide groove 17a in the radial direction X in parallel to the circumferential direction Y (concentrically with the stator 10). The first round portion of the conductor W, which is arranged in the innermost first round guide groove 17a, is arranged concentrically with respect to the axis of the stator 10.

Since the guide groove 17a does not exist in the pedestal part 17A including the locking part 17k, the second round of the conductor W changes its position in the radial direction X on the pedestal part 17A. Similarly to the first round part, the second round part from the inside of the conductor W is the second guide groove from the inside in the radial direction 17a in parallel to the circumferential direction Y. Similarly, the third circumferential portion of the conductor W from the inner side is accommodated in the third guide groove 17a from the inner side in the radial direction X in parallel to the circumferential direction Y. Strictly speaking, the third and final round portion is arranged from the pedestal part 17A where the locking part 17k is present to the pedestal part 17A two places before (ST001: conductor arrangement step).

In this way, after arranging one conductor W on the plurality of pedestals 17A, adhesive 19 is applied to the pedestals 17A and the conductors W to adhere and fix the conductors W to the pedestals 17A (ST002: conductor fixing process).

FIG. 8 is a diagram showing a state in which the conductor W after being fixed to the pedestal portion 17A is cut to form a plurality of connection wires 15.
FIG. 9 is a wiring diagram of the coil 12 according to the first embodiment.
FIG. 10 is a perspective view showing a state in which a plurality of coil wrapping bodies 11A arranged in an annular shape are fitted into a frame 60.

As shown in FIG. 9, in this embodiment, two coils 12 of each phase are connected in parallel to form a three-phase Y connection. Therefore, in order to form a coil group of U, V, and W phases of three-phase AC, and to make a plurality of connection wires 15 to connect these to the neutral point, conductor W is attached to pedestal part 17A as shown in FIG. After fixing, a die of a punch is inserted into the space R1 between the adjacent pedestals 17A of the wiring board 17, and the conductor W is punched out from above in the axial direction Z using the punch to cut it (ST003: conductor cutting step). At this time, the innermost first round portion of the conductor W, which has three rounds, is cut at a position of 15°, 165°, and 345° clockwise from the locking portion 17k, as shown in FIG. In this way, all the cutting parts C are provided between the two pedestal parts 17A adjacent in the circumferential direction Y.

Further, the second round portion from the inside of the conductor W is cut at positions of 45° and 285° clockwise from the locking portion 17k. Similarly, the outermost third round portion of the conductor W is cut at positions of 135° and 315° clockwise from the locking portion 17k. After fixing the conductor W to the pedestal part 17A, the conductor W is cut in this way to form a group of U, V, and W phase coils, and is further provided with a plurality of connection wires 15 that connect these to a neutral point. Get 17.

Next, the completed wiring board 17 is placed on the plurality of coil winding bodies 11A arranged in an annular shape (ST004: wiring board arrangement step). The connection plate 17 is arranged on the inner edge 13f in the radial direction X of the end surface 13cs in the axial direction Z of the inner flange 13c of the connection side insulator 13 and the end surface 13as in the axial direction Z of the outer flange 13a.

In addition, in the connection plate arrangement process and the connection between the connection wire 15 described next and the terminal wire 12t of the coil 12 of the coil winding body 11A, the plurality of coil winding bodies 11A are connected to the frame as shown in FIG. 60 is fitted.

FIG. 11 is a sectional view of the main parts of the connection plate 17 and the coil winding body 11A before welding.
Next, the coating of the terminal wire 12t of each coil 12 is peeled off, the terminal wire 12t is routed along the outer peripheral surface of the second protrusion 13p2 of the connection side insulator 13, bent upward in the axial direction Z, and further in the radial direction X. It is bent inward and placed on the portion of the connection plate 17 from which the coating of the connection wire 15 has been peeled off. That is, as shown in FIG. 11, the terminal wire 12t is bent inward in the radial direction X from the state shown in FIG. 10, and is placed above the connection wire 15 to be welded in the axial direction Z (ST005 :Terminal line placement process). Similarly, the terminal wires 12t of all the coil winding bodies 11A are routed and arranged on the connection wires 15 of the connection board 17.

Next, the first electrode 70 inches is inserted from inside in the radial direction X through the above-mentioned space R2 and under the connection wire 15 to be welded in the axial direction Z. Next, connect the second electrode 70u from above the terminal wire 12t to be welded in the axial direction Z to the upper surface of the first electrode 70in, and connect the connection wire 15 and the terminal wire 12t to be welded in the axial direction. Lower it so that it is sandwiched between Z and weld both sides (ST006: connection process).

Similarly, after peeling off the coating at the end of the connection wire 16 for supplying current from the power connector 40 to the U, V, and W phase connection wires 15, the coating is placed on the portion of the connection wire 15 from which the coating has been peeled off. and weld. Although welding is used in this embodiment, the wires may be connected by using a wire connection member and inserting a jig into the spaces R1 and R2.

FIG. 12 is a perspective view of the molded stator 10.
After welding all the terminal wires 12t to the connection wires 15 of the connection plate 17, the stator 10 is molded with insulating resin 90 to insulate each welded portion. Molding with insulating resin also prevents the welded portion from breaking due to vibration.

In the conventional wiring board, the spiral conductors were arranged on the same plane perpendicular to the axial direction Z, so the upper ends of the conductors were at the same height in the axial direction Z. For this reason, when the terminal wires of the stator coils were routed from the outside of the stator for connection and welded, they interfered with connection wires other than the connection wires to be welded, and welding could not be performed.

On the other hand, according to the first embodiment, the stator of a rotating electric machine, the stator of a rotating electric machine, a rotating electric machine, a method of manufacturing a connection plate of a stator of a rotating electric machine, a method of manufacturing a stator of a rotating electric machine, and a method of manufacturing a rotating electric machine. For example, the connection wire 15 that connects the terminal wire 12t of the coil 12 has a height in the axial direction Z that increases toward the inside in the radial direction X, so when welding the connection wire 15 and the terminal wire 12t of the coil 12, In addition, the first electrode 70 inches inserted from the inside of the stator 10 does not interfere with other connection wires 15, making it possible to weld both.

Furthermore, by arranging the conductors W by shifting them in the axial direction Z as shown in FIG. 11, the distance between the conductors W adjacent to each other in the radial direction Since the interval in the radial direction X can be reduced while ensuring a long insulation distance between the Ws, the diameter of the stator 10 can be reduced, and the rotating electric machine 100 can be downsized.

Further, since the pedestal portion 17A and the connecting portion 17B can be formed using insulating resin, the degree of freedom in manufacturing and transportability is high, and the efficiency of assembling the wiring board can be improved. Note that the depth of the guide groove 17a of the pedestal portion 17A should be such that the conductor W can be accommodated without collapsing as shown in FIG.

Embodiment 2.
Hereinafter, a connection plate for a stator of a rotating electric machine, a stator for a rotating electric machine, a method for manufacturing a connection plate for a stator of a rotating electric machine, a method for manufacturing a stator for a rotating electric machine, and a method for manufacturing a rotating electric machine according to the second embodiment will be described below. Embodiment 1 will be used to mainly explain the differences from Embodiment 1.
FIG. 13 is a plan view showing a state in which the conductor W is fixed on the pedestal portion 217A of the wiring board 217.
FIG. 14 is a diagram showing a state in which the conductor W fixed to the pedestal portion 217A is cut to form a plurality of connection wires 15.
FIG. 15 is a wiring diagram of the coil 12 according to the second embodiment.

The connection board 17 of the first embodiment and the connection board 217 of this embodiment differ in the number of turns of the conductor W fixed to the pedestal portion 17A. That is, in the first embodiment, the conductor W is wound about three times, but in the second embodiment, it is wound about four times. Therefore, the number of guide grooves 217a formed in the base portion 217A is also four.

In this embodiment, the coating of the connecting wire 15 forming the U, V, and W phase coil groups, the connecting wire 15 forming the neutral point, and the portion connecting the feeder line from the power source is peeled off in the middle. ing. Similar to Embodiment 1, one conductor W is arranged in four layers at different heights in the axial direction Z and different diameters in the radial direction X, and a portion connects parts with different heights in the axial direction Z. exists.

As shown in FIG. 13, the conductor W is placed on the pedestal portion 217A and fixed with the adhesive 19, and then the conductor W is punched and cut using a die and a punch as in the first embodiment. The innermost first round portion of the conductor W, which has four rounds, is cut at positions of 15°, 135°, 225°, and 345° clockwise from the locking portion 17k.

Further, the second circumference from the inside is cut at positions 15° and 225° clockwise from the locking portion 17k. Similarly, the third week portion from the inside is cut at positions 135° and 345° clockwise from the locking portion 17k. The outermost fourth round portion is cut at a position 15° clockwise from the locking portion 17k. Then, a wiring board 217 is obtained which forms coil groups of U, V, and W phases and further includes a plurality of connecting wires 15 that connect these to a neutral point.

Next, the completed wiring board 217 is placed on the plurality of coil winding bodies 11A arranged in an annular shape. The connection plate 217 is arranged on the inner edge 13f in the radial direction X of the end surface 13cs in the axial direction Z of the inner flange 13c of the connection side insulator 13 and the end surface 13as in the axial direction Z of the outer flange 13a. The subsequent steps are the same as in the first embodiment.

According to Embodiment 2, a stator connection plate for a rotating electrical machine, a stator for a rotating electrical machine, a rotating electrical machine, a method for manufacturing a connection plate for a stator for a rotating electrical machine, a method for manufacturing a stator for a rotating electrical machine, and a method for manufacturing a rotating electrical machine, include: Effects similar to those of Form 1 of manufacturing a wiring plate for a stator of a rotating electric machine, a stator for a rotating electric machine, a rotating electric machine, a wiring plate for a stator of a rotating electric machine, a method for manufacturing a stator for a rotating electric machine, and a method for manufacturing a rotating electric machine are achieved. .

Although this application describes various exemplary embodiments and examples, various features, aspects, and functions described in one or more embodiments may be applicable to a particular embodiment. The present invention is not limited to, and can be applied to the embodiments alone or in various combinations.
Therefore, countless variations not illustrated are envisioned within the scope of the technology disclosed herein. For example, this includes cases where at least one component is modified, added, or omitted, and cases where at least one component is extracted and combined with components of other embodiments.

100 rotating electric machine, 10 stator, 11 divided laminated core, 11a yoke part,
11A coil winding body, 11as end face, 11b teeth part, 11bins end face,
11bs end face, 11c shoe part, 11cs, 13cs, 13as end face,
11p iron core piece, 11s1 one end surface, 11s2 other end surface, 12 coil,
12t terminal wire, 13 connection side insulator, 14 non-connection side insulator,
13a, 14a outer flange portion, 13b, 14b tooth end surface covering portion,
13c, 14c inner flange, 13d groove, 13f edge, 13p1 first protrusion,
13p2 second protrusion, 15, 16 connection wire, 17, 217 connection plate,
17a, 217a guide groove, 17A, 217A pedestal, 17ain inner side surface,
17As upper end surface, 17B connecting portion, 17Bout outer peripheral surface, 17k locking portion,
19 adhesive, 30 rotor, 40 power connector, 50a anti-connection side bracket,
50b connection side bracket, 60 frame, 70in first electrode, 70u second electrode,
90 Insulating resin, C cutting section, R1, R2 space, S end, W conductor, X radial direction,
Y circumferential direction, Z axis direction.

Claims (12)

A connection plate for a stator of a rotating electrical machine, comprising a connecting wire that connects terminal wires of a plurality of coils wound around teeth of a stator of the rotating electrical machine,
A pedestal portion divided into multiple parts in the circumferential direction,
a connecting portion connecting the circumferentially adjacent pedestal portions,
A plurality of guide grooves for guiding the connection line are provided in the pedestal part in parallel to the circumferential direction,
The axial position of the bottom of each guide groove is higher in order from the outer side to the inner side in the radial direction. The connection plate for a stator of a rotating electrical machine according to claim 1, wherein the cutting portion of the connection wire is present between the adjacent pedestal portions. The connection plate for a stator of a rotating electric machine according to claim 1 or 2, wherein when the connection plate is viewed in the radial direction, there is a space penetrating in the radial direction below the connection portion in the axial direction. The connection plate for a stator of a rotating electrical machine according to any one of claims 1 to 3, wherein the plurality of guide grooves are provided in the pedestal parts other than one of the pedestal parts. The rotation according to any one of claims 1 to 4, wherein the outer circumferential surface of the connecting portion is recessed radially inwardly from the inner side surface of the guide groove that is the most radially innermost of the pedestal portion. Electrical stator wiring board. The connection plate for a stator of a rotating electric machine according to any one of claims 1 to 5, wherein the connection wire is fixed to the pedestal part with an adhesive. A wiring board for a stator of a rotating electrical machine according to any one of claims 1 to 6,
A plurality of coil windings including a split core divided in the circumferential direction, an insulator attached to both axial end surfaces of the split core, and the coil wound around the teeth of the split core via the insulator. Equipped with a body,
The insulator includes an outer flange portion that covers an axial end surface of a yoke portion of the split core, an inner flange portion that covers an axial end surface of a radially inner tip portion of the tooth portion, and an axial end surface of the tooth portion. and a teeth end face covering part,
A stator of a rotating electric machine, wherein the connection plate is positioned and disposed in a radial direction on an end surface of the inner flange and a radially inner edge of an axial end surface of the outer flange. The stator for a rotating electrical machine according to claim 7, wherein the coil winding body and the wiring board are molded with an insulating resin. A stator for a rotating electrical machine according to claim 7 or claim 8;
A rotating electrical machine comprising: a rotor rotatably supported with an outer circumferential surface facing the inner circumferential surface of the stator. A method for manufacturing a wiring board for a stator of a rotating electric machine according to any one of claims 1 to 6, comprising:
one conductor is arranged in the outermost or innermost guide groove of the plurality of pedestal parts,
Subsequently, a conductor placement step of placing the conductor in the guide grooves of the plurality of pedestals that are radially adjacent to the guide grooves in which the conductors have already been placed;
A method for manufacturing a wiring board for a stator of a rotating electric machine, comprising a cutting step of cutting one of the conductors between the adjacent pedestals. 9. The method of manufacturing a stator of a rotating electrical machine according to claim 7 or 8, wherein the wiring plate of a stator of a rotating electrical machine manufactured using the method of manufacturing a wiring board of a stator of a rotating electrical machine according to claim 10 is used. ,
a wiring board arrangement step of arranging the wiring board on the plurality of coil winding bodies arranged in an annular shape;
a terminal line arrangement step of arranging the terminal line above the connection line to be welded in the axial direction;
Insert a first electrode under the connection wire to be welded in the axial direction,
The second electrode is lowered from above the terminal wire to be welded in the axial direction to between the upper surface of the first electrode so as to sandwich the connection wire and the terminal wire to be welded in the axial direction. A method for manufacturing a stator for a rotating electric machine, comprising: a step of welding the terminal wire and the connection wire together. A method for manufacturing a rotating electrical machine using a stator for a rotating electrical machine produced using the method for producing a stator for a rotating electrical machine according to claim 11,
A method of manufacturing a rotating electric machine, wherein the rotor is rotatably arranged with an outer circumferential surface of the rotor facing an inner circumferential surface of the stator.

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