JP4019595B2 - Rotating electric machine for vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicular rotating electrical machine suitable for driving wheels.
[0002]
[Prior art]
In conventional rotating electrical machines, in order to shorten the coil end portion that is ineffective for output and torque generation, it has been proposed to concentrate the armature winding around the core, for example, by dividing the core.
[0003]
[Problems to be solved by the invention]
However, in the above-described core-divided coil concentrated winding type armature, it is difficult to improve output and torque due to an increase in magnetic resistance.
[0004]
The present invention has been made in view of the above-described problems, and an object thereof is to provide a small and high-output vehicular rotating electrical machine.
[0005]
[Means for Solving the Problems]
The vehicle rotary electric machine according to claim 1, wherein solving the above problems includes a rotor for transmitting torque to the axle, a stator fixed to the housing has a circumferential surface facing the peripheral surface of the rotor comprising, before Symbol rotor has an outer rotor portion whose inner peripheral surface is electromagnetically coupled to the outer peripheral surface of the stator and an inner rotor portion outer peripheral surface is electromagnetically coupled to the inner peripheral surface of said stator, said The outer rotor portion and the inner rotor portion each have magnetic poles formed on the circumferential surface facing the stator at substantially the same position in the circumferential direction with the same polarity and alternately in the circumferential direction at a predetermined pitch, and the stator is A stator iron core disposed between the inner rotor portion and the outer rotor portion, and a set of multiphase windings wound around the stator and electromagnetically coupled to the rotor portions. and a winding, wherein the stator core includes a core back, radially above the core back Includes a plurality of outer circumferential side slots and teeth formed in the outer in the circumferential direction by a predetermined pitch, and a number of inner peripheral side slots and teeth formed in the radially inner side of the core back in the circumferential direction by a predetermined pitch, the fixed The child winding is configured by connecting concentrated winding coil portions that are concentratedly wound around each pair of the outer circumferential slot and the inner circumferential slot that are close to each other .
[0006]
That is, in this rotating electrical machine for a vehicle, concentrated winding is performed by concentrating coils around an outer peripheral side slot of a cylindrical stator core and an inner peripheral side slot at the same position in the circumferential direction (here, 1 slot pitch or less). A coil portion is formed, and a pair of rotors (also referred to as rotors) are provided on both circumferential surfaces of the stator (also referred to as a stator), and a rotor on the outer diameter side is provided as an outer rotor portion and a radially inner side. This rotor is called the inner rotor part.
[0007]
In this way, even if the stator core is not divided, the concentrated winding coil portion can be easily wound around the pair of radially inner and outer slots present at substantially the same position in the circumferential direction. The coil end length extending in the radial direction of the coil portion can be minimized. Further, since the pair of axially extending portions of the concentrated winding coil portion are effectively electromagnetically coupled to the outer rotor portion and the inner rotor portion individually, torque can be generated respectively. As a result, it is possible to realize a much shorter shaft length than before by shortening the axial protrusion amount of the coil end and using both peripheral surfaces of the stator core, and also having a small magnetic resistance and an armature coil. Leakage inductance and electrical resistance can be reduced, which makes it possible to achieve significantly higher output and higher efficiency compared to the conventional case. Furthermore, since it is not necessary to employ a split stator core as compared with a conventional rotating electric machine having concentrated winding armature coils, the rigidity thereof does not decrease, and an extremely robust rotating electric machine can be realized. .
[0008]
In addition, as an outer rotor part and an inner rotor part, an embedded permanent magnet type, a surface arrangement permanent magnet type, a reluctance motor (also called salient pole core type or inductor type), a cage type (induction machine rotor type), etc. Of course, it can be adopted.
[0009]
Preferably, the outer rotor portion and the inner rotor portion each have permanent magnetic pole surfaces formed at a predetermined pitch alternately in the circumferential direction and with the same polarity at the same position in the circumferential direction on the circumferential surface facing the stator. .
[0010]
As a result, the coil end portion of each concentrated winding coil portion extends in the radial direction with the shortest distance, so that the minimum distance can be achieved, and the leakage inductance and electrical resistance of the armature coil are minimized, and the output and efficiency are reduced. The axial dimension required for the coil end portion can also be shortened. The same position in the circumferential direction naturally allows a manufacturing tolerance of about 2% of the circumferential slot pitch.
[0011]
The term “permanent magnetic pole surface” as used herein refers to an N-type or S-type magnetic pole surface generated on the peripheral surfaces of the outer rotor portion and the inner rotor portion during operation. Also called reluctance motor type salient pole core.
[0012]
Further, according to the present invention, the stator core is formed by laminating a large number of electromagnetic steel plates having a ring plate shape in the axial direction, and is positioned between a pair of the concentrated winding coil portions adjacent to each other in the circumferential direction. Then, it is supported by the stator support frame at one end in the axial direction through a rod-like support member penetrating the core back. A phase terminal portion of each phase comprising substantially concentric ring-shaped conductors supported at a predetermined interval in the axial direction on a resin sleeve fixed to the stator support frame; and the stator support frame. A neutral point terminal portion made of a ring-shaped conductor supported on the inside of the phase terminal portion in the radial direction on the resin sleeve fixed to the core, and one end of the concentrated winding coil portion is the phase terminal portion The other end of the concentrated winding coil portion is connected to the neutral point terminal portion.
In this way, it is possible to form the stator core by laminating electromagnetic steel plates each having a ring shape in the axial direction, so there is no need to divide the stator core and the stator support frame Is close to one end of the stator core in the axial direction, the rod-like support member that mechanically couples them can be shortened, and a robust configuration can be achieved.
[0013]
Furthermore, in this configuration, each concentrated winding coil portion of the armature coil wound around the stator core has a coil end portion extending in the radial direction as described above, and this coil end portion extends in the circumferential direction. Therefore, a large space is generated between a pair of coil end portions adjacent in the circumferential direction. Therefore, the bar-shaped support member can be easily protruded toward the stator support frame by utilizing this space, and the excellent effect of facilitating the fixing operation of the stator core can be achieved.
[0014]
In this invention, the said rotor is being fixed to the rotating shaft through the rotor support frame which supports the axial direction same end side of the said inner side rotor part and an outer side rotor part at one end .
[0015]
That is, in the rotating electric machine in which the armature coil of this configuration has a concentrated winding coil portion, the axial length of the coil end of the armature coil can be shortened, so that the outer rotor portion and the inner rotor portion are supported, A rotor support frame that extends in the radial direction at one axial end side of both the rotor portions and the stator can be disposed close to the outer rotor portion and the inner rotor portion.
[0016]
For this reason, the torque generated in both rotor portions reduces the torsion of both rotor portions with the radially extending portion (disk portion) of the rotor support frame as the base end, thereby enhancing the rigidity of the rotor. it can.
[0017]
In the present invention, each of the concentrated winding coil portions has a winding start end and a winding end end that protrude toward the stator support frame .
[0018]
In this way, the workability of connecting the winding start end and the winding end end of each concentrated winding coil portion becomes easy, and interference between this connection (crossover wire) and the rotor support frame can be avoided. .
[0019]
In the present invention, the stator winding is formed by connecting a large number of phase windings that are configured by connecting the concentrated winding coil portions of the same phase in parallel and having different phases .
[0020]
In other words, in this configuration, all the concentrated winding coil portions having the same phase are connected in parallel, so that the connection is simplified and it is also easy to avoid the interference between the connecting crossover wire and the rod-shaped support member.
[0021]
Preferably, the concentrated winding coil portion is wound around the outer peripheral side slot and the inner peripheral side slot formed at the same position in the circumferential direction. As a result, the coil end portion of each concentrated winding coil portion extends in the radial direction with the shortest distance, so that the minimum distance can be achieved, and the leakage inductance and electrical resistance of the armature coil are minimized, and the output and efficiency are reduced. The axial dimension required for the coil end portion can also be shortened. The same position in the circumferential direction naturally allows a manufacturing tolerance of about 2% of the circumferential slot pitch.
[0022]
Preferably, the winding start end of the odd-numbered concentrated winding coil portion of the predetermined phase and the winding end end of the even-numbered concentrated winding coil portion are connected to the phase terminal portion of the predetermined phase, and the even number of the predetermined phase The winding start end of the concentrated winding coil portion and the winding end end of the odd-numbered concentrated winding coil portion are connected to a neutral point terminal portion forming a neutral point . In this way, a star wiring structure can be realized simply.
[0023]
Preferably, the phase terminal portion and the neutral point terminal portion are formed of substantially concentric ring-shaped conductors adjacent to the stator support frame. In this way, a star wiring structure can be realized simply. The ring-shaped conductor is preferably arranged at a position that does not overlap with the rod-shaped support member that connects the stator core to the stator support frame in the radial direction, thereby avoiding interference between the two. Can do.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of a vehicular rotating electrical machine of the present invention will be described below with reference to the drawings.
[0025]
[Example 1]
An embodiment in which the vehicular rotating electrical machine of the present invention is applied to an internal combustion engine driven vehicle will be described below.
[0026]
(Overall structure)
FIG. 1 shows an axial sectional view showing the vicinity of a rotating electrical machine for a vehicle of a power train of this internal combustion engine driven vehicle,
Reference numeral 100 denotes a housing, 101 denotes an engine crankshaft, 102 denotes a clutch mechanism, 103 denotes an input shaft of a gear mechanism (not shown), and 1 denotes a vehicular rotating electrical machine.
[0027]
The vehicular rotating electrical machine 1 includes a stator 2, an outer rotor portion 3, an inner rotor portion 4, a rotor support frame 5, a stator support frame 6, and a rod-like support member 7.
[0028]
The outer rotor portion 3 and the inner rotor portion 4 constitute a rotor referred to in the present invention, and the inner peripheral surface of the outer rotor portion 3 is electromagnetically coupled to the outer peripheral surface of the stator 2 with a small electromagnetic gap therebetween. The outer peripheral surface of the portion 4 is electromagnetically coupled to the outer peripheral surface of the stator 2 with a small electromagnetic gap.
[0029]
Both rotor sections 3 and 4 are known embedded permanent magnet type rotors composed of laminated electromagnetic steel sheets 31 and 41 having permanent magnets 30 and 40 embedded therein. The permanent magnet 30 formed in a thin plate shape is individually embedded in a number of permanent magnet receiving grooves that are provided in the laminated electromagnetic steel plate 31 so as to penetrate in the circumferential direction at a constant pitch in the circumferential direction. The laminated electromagnetic steel sheets 41 are individually embedded in a large number of permanent magnet housing grooves that are provided in the axial direction in the circumferential direction at equal pitches.
[0030]
The permanent magnets 30 and 40 are magnetized in the thickness direction, that is, in the substantially radial direction. The permanent magnet 30 and the permanent magnet 40 are embedded at equal positions in the circumferential direction, and the permanent magnets 30 and 40 at the same position have magnetic poles of the same polarity on the stator 2 side. As a result, magnetic pole surfaces are formed at a predetermined pitch in the circumferential direction on the inner circumferential surface of the laminated electromagnetic steel sheet 31 and the inner circumferential surface of the laminated electromagnetic steel sheet 41 at the same circumferential position as the permanent magnet. It has the same polarity as the magnetic pole surface of the rotor portion 4 at the same position in the circumferential direction.
[0031]
The rotor support frame 5 extends in the radial direction, an outer cylindrical portion 51 to which the outer peripheral surface of the outer rotor portion 3 is fixed, an inner cylindrical portion 52 to which the inner peripheral surface of the inner rotor portion 4 is fixed. And the disc part 53 which connects the end parts on the rear side of both the cylinder parts 51 and 52, and the front end of the inner cylinder part 52 is fastened to the crankshaft 101.
[0032]
The stator 2 is wound around a stator core 20 disposed in a radial gap between the outer rotor portion 3 and the inner rotor portion 4 and is electromagnetically coupled to the rotor portions 3 and 4 (stator winding ( Armature coil) 21.
[0033]
The stator core 20 is made of a laminated electromagnetic steel sheet obtained by laminating a large number of electromagnetic steel sheets having a ring shape in the axial direction. If described with reference to a partial development view of FIG. A large number of outer peripheral slots 202 and teeth 203 formed at a predetermined pitch in the circumferential direction on the radially outer side of 201, and a plurality of inner peripheral slots 204 and teeth formed at a predetermined circumferential direction on the inner side in the radial direction of the core back 201. 205.
[0034]
The stator core 20 is fixed to the stator support frame 6 by a large number of rod-like support members (bolts) 7 that penetrate the core back 201 in the axial direction at a circumferential position equal to the circumferential position of the teeth.
[0035]
The stator support frame 6 is formed of a ring plate having an annular step, and is fastened to the housing 100 close to the front side of the stator core 20.
[0036]
If the stator winding 21 is described with reference to a partial development view of FIG. 2, the concentrated winding coil portion 210 concentratedly wound on the outer peripheral side slot 202 and the inner peripheral side slot 204 at the same position in the circumferential direction is arranged on the outer peripheral side. The number of slots 202 is equal to the number of slots (= the number of slots of the inner peripheral side slot 204). However, FIG. 2 shows only the U-phase concentrated winding coil portion 210. Therefore, the rod-shaped support member 7 is located between two concentrated winding coil portions 210 adjacent in the circumferential direction and penetrates the core back 201.
[0037]
The winding start end 2101 and the winding end end 2102 of each concentrated winding coil part 210 are projected to the front side in the axial direction, and each phase winding of the star-connected stator winding 21 is connected to all concentrated winding coil parts 210 of the same phase. Are connected in parallel (see FIG. 3). Each U-phase concentrated winding coil section 210 is wound every three slots. However, in order to reverse the energization direction of the odd-numbered concentrated winding coil part 210 and the even-numbered concentrated winding coil part 210, as shown in FIG. 2, the winding start end 2101 of the odd-numbered concentrated winding coil part 210 is provided. And the winding end end 2102 of the even-numbered concentrated winding coil section 210 is connected to the U-phase output end section 91, and similarly the winding start end 2101 of the even-numbered concentrated winding coil section 210 and the winding of the odd-numbered concentrated winding coil section. The end end 2102 is connected to a neutral point terminal portion 94 that forms a neutral point.
[0038]
(Stator winding connection structure)
The stator winding connection structure will be described in more detail with reference to FIG.
[0039]
A cylindrical three-phase terminal 9 is fixed to the stator support frame 6 shown in FIG. The three-phase terminal 9 includes a plurality of resin sleeves 90 fastened to the stator support frame 6 by bolts (not shown) at predetermined intervals in the circumferential direction, and axially inwardly of the resin sleeves 90. A U-phase output end 91, a V-phase output end 92, and a W-phase output end 93, each of which has an outer peripheral portion fitted into and supported by three output end receiving grooves recessed at regular intervals. is doing. These output end portions 91 to 93 are made of copper ring pieces.
[0040]
A front view of the U-phase output end 91 viewed in the axial direction is shown in FIG. The U-phase output end 91 includes a ring portion 910 and a locking portion 911 that protrudes radially inward from the inner peripheral edge of the ring portion 910 at the same position in the circumferential direction as the U-phase outer peripheral slot 202 and the inner peripheral slot 204. , And an output terminal 912 protruding outward from the outer peripheral edge of the ring portion 910. The winding end 2102 or the winding start end 2101 of each concentrated winding coil part 210 of the U phase described above is locked to each locking part 911. The V-phase output end portion 92 and the W-phase output end portion 93 have the same structure as the U-phase output end portion 91 and are connected to the V-phase concentrated winding coil portion 210 and the W-phase concentrated winding coil portion 210, respectively. The locking portions 911 of the output end portions 91 to 93 of each phase are provided so as to be shifted in the circumferential direction by one slot pitch.
[0041]
As shown in FIG. 4, the neutral point terminal portion 94 is fastened together with a resin sleeve 90 and fastened with screws (not shown) at predetermined intervals in the circumferential direction to a radially inner portion of the fixture 10 extending radially inward. A plurality of resin sleeves 95, and neutral point terminal portions 94 that are supported by fitting an outer peripheral portion into a neutral point terminal portion receiving groove that is recessed inside the diameter of the resin sleeve 95. have.
[0042]
FIG. 6 shows a front view of the neutral point terminal portion 94 made of a copper ring plate as viewed in the axial direction. The neutral point terminal portion 94 includes a ring portion 940 and a locking portion 941 that protrudes radially inward from the inner periphery of the ring portion 940. The number of locking portions 940 is three times that of the locking portions 911 of the U-phase output end 91.
(Operation)
Next, the operation of this vehicular rotating electrical machine will be described.
[0043]
The vehicular rotating electrical machine 1 is a three-phase synchronous machine, and the position of the rotor is detected by a rotation sensor (not shown). When a three-phase AC voltage having a phase corresponding to the position of the rotor is passed through the star-connected stator winding 21, the outer rotor portion 3 and the inner rotor portion 4 are applied to the outer rotor portion 3 and the inner rotor portion 4 by the rotating magnetic field formed by the stator winding 21. Torque is generated, and the vehicular rotating electrical machine 1 starts the internal combustion engine through the crankshaft 101. Thereafter, the vehicular rotating electrical machine 1 performs torque assist, regenerative braking, or power generation in the same manner as a conventional vehicular rotating electrical machine.
[0044]
According to the vehicle rotary electric machine of this embodiment, a small and high-output vehicle rotary electric machine can be realized, and in particular, the coil end portion of the stator winding 21 is conventionally divided without dividing the stator core 20. Further reduction can be achieved, and one end support of the stator core 20 is facilitated.
[0045]
[Example 2]
An embodiment in which the vehicular rotating electrical machine of the present invention is applied to an internal combustion engine driven vehicle will be described below with reference to FIGS. However, components having the same main functions as those of the first embodiment are denoted by the same reference numerals for easy understanding.
[0046]
The vehicular rotating electrical machine is the same as the rotating electrical machine for a vehicle according to the first embodiment, in which the stator 2 is stacked in three stages in the radial direction, and therefore, four stages of rotor portions 201 to 204 are arranged. However, in FIG. 8, for simplification, one stage of the rotor portion 203 and the stator is omitted, the stator core 20 is omitted, and the stator winding 21 is schematically illustrated.
[0047]
Each stator 2 has essentially the same structure as that of the first embodiment, but each outer peripheral slot 202 and inner peripheral slot 204 are gradually formed deeper toward the outside at both axial ends. In this way, since the axial protrusion width of the coil end portion of the stator winding 21 can be shortened, a vehicular rotating electrical machine having a shorter axial length can be realized. Further, since the total extension distance of the coil end portion can be reduced, its leakage inductance and electrical resistance can be reduced, and the efficiency and output can be improved.
[0048]
The rotor portions 201 to 204 stacked in four stages are the same as those in the first embodiment in that they have a permanent magnet field rotor structure. In this embodiment, the rotor portions 201 to 204 are cylindrical ceramic magnets. The pattern shown in FIG. 8 is magnetized during and after molding. Of course, as in the first embodiment, various rotors such as permanent magnet embedded rotor parts 201 to 204 and permanent magnet surface arrangement type rotors can be employed.
[0049]
However, in this embodiment, as shown in FIG. 8, of the rotor portions 201 to 204, the two rotor portions facing each other with the stator 2 interposed therebetween have magnetic pole surfaces having the same polarity at the same position in the circumferential direction. The magnetic pole surface here refers to an N pole surface indicated by N and an S pole surface indicated by S. Further, in this embodiment, the inner peripheral surface and the outer peripheral surface of the intermediate rotor portions 202 and 203 sandwiched in the radial direction by the two stators 2 have magnetic pole surfaces of opposite polarity at the same position in the circumferential direction.
[0050]
In this way, since the intermediate rotor portions 202 and 203 can be mainly magnetized in the radial direction, it can be seen that the rotor portions 202 and 203 essentially do not require a yoke portion. However, since the intermediate rotor portions 202 and 203 have electromagnetic coupling surfaces on both sides in the radial direction, the AT is preferably double that of the rotor portions 201 and 204. In any case, this vehicular rotating electrical machine has a total of six electromagnetic coupling surfaces in the radial direction, and can theoretically generate three times as much torque as the single-stage configuration of the first embodiment.
[0051]
That is, the cylindrical ceramic magnets as the intermediate stators 202 and 203 do not need to have a large magnetic path cross-sectional area in the circumferential intermediate portion between each N-pole magnetic pole surface N and each S-pole magnetic pole surface S. Therefore, in this embodiment, an axial through hole 300 for ventilation is provided in the circumferential intermediate portion. In principle, the intermediate portion in the circumferential direction can be nonmagnetic. Naturally, some of the axial through holes 300 may be used for inserting rod-like support members for fixing the cylindrical ceramic magnets as the stators 202 and 203 to the disk portion 53 of the rotor support frame 5. However, in this embodiment, the end portions on the rotor support frame 5 side of the rotor parts 201 to 204 formed integrally with the cylindrical ceramic magnet are formed thin in the radial direction, and the rotor support frame 5 is formed on the rotor support frame 5. It is inserted and fixed in the recessed part provided in the recess.
[0052]
In this embodiment, the rotor parts 201 and 204 on the smallest diameter side and the largest diameter side form a magnetic path by the cylindrical yoke parts 51 and 52 of the rotor support frame 5. If the magnetic paths are formed by the portions 201 and 204 themselves, the rotor support frame 5 can be a lightweight product such as aluminum die cast. In this case, the rotor portions 201 and 204 can omit a gap between two magnetic pole surfaces adjacent in the circumferential direction. As in the first embodiment, the rotor parts 201 to 204 can be embedded magnet type or surface magnet type. In the latter case, the rotor parts 202 and 203 need to be provided with permanent magnets on the inside and outside of the diameter. It becomes.
[0053]
According to this embodiment, since the rotor portions 201 to 204 and the stator 2 are stacked in multiple stages in the radial direction, a further reduction in size and output can be achieved than in the first embodiment. In such a multistage structure, the adverse effect due to an increase in the ratio of the coil end portion to the conductor portion in the slot in the stator winding 21 has been large conventionally, but in the method using the concentrated winding coil portion 210 of this configuration, Since the total extension distance of the coil end portion can be dramatically reduced as compared with the conventional case, the axial length of the rotating electrical machine can be shortened and the output can be increased by increasing the number of stages while suppressing the adverse effect of the increase in the number of coil end portions.
[0054]
Further, in this embodiment, the radially intermediate rotor portions 202 and 203 can be configured so that magnetic flux flows mainly in the axial direction, so that one intermediate rotor portion is substantially two in the first embodiment. It corresponds to the rotor part, and the intermediate rotor parts 202 and 203 do not need to have a yoke part that allows the magnetic flux to flow in the circumferential direction. For this reason, a further reduction in size and output can be realized.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view in the axial direction of a power train using a vehicular rotating electrical machine according to a first embodiment in the vicinity of the rotating electrical machine for a vehicle.
2 is a partial development view of a stator of the rotating electrical machine for a vehicle shown in FIG. 1. FIG.
3 is a wiring diagram of a U-phase stator winding of the vehicular rotating electrical machine shown in FIG. 1. FIG.
4 is an axial sectional view showing a wiring structure of a stator winding of the vehicular rotating electrical machine shown in FIG. 1; FIG.
5 is a front view of a U-phase output terminal section shown in FIG. 4. FIG.
6 is a front view of the neutral point terminal portion shown in FIG. 4. FIG.
7 is a cross-sectional view in the axial direction of a rotating electrical machine for a vehicle according to Embodiment 2. FIG.
8 is a partial development view of the vehicular rotating electrical machine shown in FIG. 7;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotating electric machine for vehicles 2 Stator 3 Outer rotor part (rotor)
4 Inner rotor (rotor)
5 Rotor Support Frame 6 Stator Support Frame 7 Rod Support Member 100 Housing

Claims (1)

Comprising a rotor for transmitting torque to the axle, a stator fixed to the housing has a circumferential surface facing the peripheral surface of the rotor, the rotor, the outer periphery the inner peripheral surface of said stator has an outer rotor portion electromagnetically coupled to the surface, and an inner rotor portion outer peripheral surface is electromagnetically coupled to the inner peripheral surface of said stator, said stator is disposed between the inner rotor portion and the outer rotor portion And a stator winding comprising a set of multi-phase windings wound around the stator and electromagnetically coupled to the rotor parts , the stator core having a core And a plurality of outer peripheral slots and teeth formed at a predetermined circumferential pitch on the radially outer side of the core back, and a plurality of inner peripheral slots formed at a predetermined circumferential pitch on the inner side of the core back. and and a teeth, the stator windings, to close to each other Is constructed by connecting each concentrated winding coil unit which are respectively concentrated winding on each pair of the outer peripheral side slot and the inner peripheral side slot, said stator core is a plurality of electromagnetic steel sheets having a ring-like shape in the axial direction The stator support frame is supported at one end in the axial direction through a rod-shaped support member that is laminated and positioned between a pair of concentrated winding coil portions adjacent to each other in the circumferential direction and penetrating the core back. the vehicle rotary electric machine,
Phase terminal portions of respective phases composed of substantially concentric ring-plate-like conductors supported at a predetermined interval in the axial direction on resin sleeves fixed to the stator support frame, and the stator support frame And a neutral point terminal portion made of a ring-shaped conductor supported on the inner side in the radial direction of the phase terminal portion, and one end of the concentrated winding coil portion is connected to the phase terminal portion. And the other end of the concentrated winding coil portion is connected to the neutral point terminal portion.

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