JP6516804B2 - Rotor of electric rotating machine - Google Patents

Description

  The present invention relates to a rotor of a rotating electrical machine that constitutes an AC generator mounted on a vehicle.

  Conventionally, for example, in an AC generator as a rotating electric machine mounted on a vehicle, in order to reliably pass a magnetic flux between a Lundell-type pole-shaped magnetic pole constituting a rotor and a stator, between adjacent pole-shaped magnetic poles A permanent magnet is interposed between the claws to prevent the magnetic flux from leaking between the claw poles. In such an alternating current generator, there is a possibility that the permanent magnet may protrude radially outward due to the centrifugal force and may be damaged. Therefore, it is known to provide a recess in the disk portion of the rotor core to hold the permanent magnet, and to restrain the permanent magnet by the ridge portion provided on the outer periphery of the claw-like magnetic pole (see, for example, Patent Document 1) ). Also, it is known to provide a groove on the side surface of the rotor, and place a material softer than the magnet in the gap between the outer circumferential surface of the magnet and the groove to suppress movement of the magnet due to centrifugal force (for example, Patent Document 2).

Patent No. 4692428 Patent No. 4253087

  However, the prior art has the following problems. In a rotor of a rotating electrical machine for a vehicle, generally, permanent magnets are fixed by an adhesive or the like. Then, in order to temporarily fix the permanent magnet until the adhesive is cured, a recess, a groove, and the like are formed in the claw-like magnetic pole. However, in the case of forming a recess as in Patent Document 1, for example, it is necessary to assemble a permanent magnet at the same time as assembling a pair of rotor cores. For this reason, the manufacturing operation becomes complicated, and the permanent magnet can not be assembled unless a dedicated jig is used.

  On the other hand, in the case where the groove portion as described in Patent Document 2 is formed, since the permanent magnet can be inserted after assembling the pair of rotor cores, the manufacturing operation is easy. However, since the insertion slot of the permanent magnet is in an open state, the permanent magnet may fall out of the insertion slot until the adhesive cures.

  The present invention has been made in view of the above, and a permanent magnet can be assembled to a rotor core without using a dedicated jig, and the permanent magnet is fixed until the adhesive for fixing the permanent magnet is cured. Provided is a rotor of a rotating electrical machine capable of preventing positional deviation.

  A rotor of a rotating electrical machine according to the present invention includes a rotor core and a plurality of magnets provided on the rotor core and spaced apart from one another in the circumferential direction and a plurality of magnets provided on the rotor core The rotor core comprises a first core and a second core, the rotor core being disposed radially inward of the rotor and a bobbin interposed between the rotor winding and the rotor core. And the first core portion has a plurality of first claw-shaped magnetic poles spaced from one another in the circumferential direction, and the second core portions are spaced from one another in the circumferential direction. The first iron core portion and the second iron core portion alternately have the first claw magnetic pole and the second claw magnetic pole in the circumferential direction. The plurality of magnets are combined with each other in the disposed state, and each of the plurality of magnets includes the first claw-shaped magnetic pole and the second claw-shaped magnetic pole. A bobbin main body interposed between the rotor core and the rotor winding on the radially inner side of the rotor core than the plurality of magnets, and the bobbin is provided on the bobbin main body And a supporting portion for supporting each of the plurality of magnets.

  According to the present invention, the permanent magnet is supported from the axial direction, the radial direction and the circumferential direction of the rotor core between the pair of claw-like magnetic poles constituting the rotor core. Thus, the permanent magnet can be assembled to the rotor core without using a dedicated jig, and the rotor of the rotating electrical machine can prevent the permanent magnet from being displaced until the adhesive is cured. You can get

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the rotary electric machine provided with the rotor by Embodiment 1 of this invention. It is sectional drawing of a rotary electric machine which follows the II-II line of FIG. FIG. 5 is a side view showing the rotor according to Embodiment 1 in which no permanent magnet is disposed. FIG. 5 is a view showing the arrangement of permanent magnets and claw poles of the rotor according to Embodiment 1; It is a figure which shows the state before inserting a permanent magnet in the cross section of the rotor which follows the VV line of FIG. It is sectional drawing of the rotor which follows the VI-VI line of FIG. In the rotor of FIG. 5, it is a figure explaining the middle of insertion of a permanent magnet. In the rotor of FIG. 5, it is a figure explaining the state where the permanent magnet was inserted. In the rotor of FIG. 4, it is a figure which shows the state which added the flat plate of the nonmagnetic material to the permanent magnet. FIG. 16 is a diagram showing a first modification of the rotor of the rotary electric machine according to the first embodiment. FIG. 10 is a diagram showing a second modification of the rotor of the rotary electric machine according to the first embodiment. FIG. 16 is a diagram showing a third modification of the rotor of the rotary electric machine according to the first embodiment. FIG. 10 is a cross-sectional view of a rotor of a rotary electric machine according to a second embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a third embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a third embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a third embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a third embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a fourth embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a fourth embodiment; FIG. 16 is a cross-sectional view of a rotor of a rotary electric machine according to a fourth embodiment;

  Hereinafter, preferred embodiments of a rotating electrical machine of the present invention will be described using the drawings.

Embodiment 1
FIG. 1 is a front view of a rotating electrical machine according to a first embodiment of the present invention, in which a cover of a control device is removed. FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

  As shown in FIG. 2, the rotating electrical machine 1 is a controller-integrated rotating electrical machine in which the rotating electrical machine main body 2 and the control device 3 are integrated. The rotary electric machine 1 is mounted, for example, on a vehicle driven by an internal combustion engine. The rotary electric machine 1 of the first embodiment is an AC generator motor (AC motor generator) with a brush. The double arrows shown in FIG. 2 indicate the front side (F) and the rear side (R) of the rotary electric machine 1.

  The rotary electric machine main body 2 has a cylindrical stator 4, a rotor 5 disposed inside the stator 4, and a case 6 for supporting the stator 4 and the rotor 5. The case 6 has a front bracket 7 holding one end side in the axial direction of the stator 4 and a rear bracket 8 holding the other end side. The front bracket 7 and the rear bracket 8 are fixed by a plurality of bolts 9. The front bracket 7 and the rear bracket 8 are made of metal.

  The stator 4 has a cylindrical stator core 10 and a stator winding 11 wound around the stator core 10. In the first embodiment, the stator winding 11 constitutes an armature winding of the rotary electric machine 1. The stator winding 11 is composed of one or more three-phase alternating current windings of star connection or delta connection.

  The rotor 5 has a rotating shaft 12 and a rotor core 13 fixed to the rotating shaft 12. The rotor core 13 has a first core portion 13A, a second core portion 13B, and a rotor winding 14 as a field winding. The rotor winding 14 is surrounded by the first core portion 13A and the second core portion 13B. The first iron core portion 13A and the second iron core portion 13B are made of iron and constitute a so-called claw pole type magnetic pole.

  The rotating shaft 12 passes through the front bracket 7 and the rear bracket 8. The rotating shaft 12 is rotatably supported by a bearing 15 attached to the front bracket 7 and a bearing 15 attached to the rear bracket 8. The outer peripheries of the first iron core portion 13A and the second iron core portion 13B and the inner periphery of the stator 4 have a predetermined gap. Further, cooling fans 16 are attached to one axial end and the other axial end of the first iron core portion 13A and the second iron core portion 13B, respectively.

  A pulley 17 is fixed to an axial end of the rotary shaft 12 on the front bracket 7 side. A transmission belt (not shown) interlocking with the drive shaft of the internal combustion engine is wound around the pulley 17. Power is transmitted between the rotating electrical machine 1 and the internal combustion engine via the transmission belt.

  On the other hand, on the rear bracket 8 side of the rotating shaft 12, a sensor 18 for detecting the rotational position of the rotating shaft 12 and a slip ring 19 electrically connected to the rotor winding 14 are disposed. The slip ring 19 is formed of a conductive member and attached so as to surround the outer periphery of the rotating shaft 12.

  The brush 20 formed of a conductive member is held by a brush holder 21 fixed to the rear bracket 8. The brush 20 is biased by the pressing spring 22 to contact the slip ring 19. The brush 20 and the slip ring 19 slide along with the rotation of the rotor 5 to supply a field current to the stator winding 11 via the brush 20 and the slip ring 19.

  The control device 3 includes a pair of power module components 23, a field circuit unit 24, a control circuit unit 25, and a signal relay device 26. The pair of power module structures 23 are electrically connected to the stator winding 11. On the other hand, the field circuit unit 24 adjusts DC power from a battery (not shown) to make a field current, and supplies it to the rotor winding 14. The pair of power module components 23 and the field circuit unit 24 are controlled by the control circuit unit 25 via the signal relay device 26. The control device 3 is covered by a cover 38 formed of an insulating resin. The control circuit unit 25 also has an external connection connector 27 for transmitting and receiving signals to and from an external device such as an internal combustion engine control unit.

  The control circuit unit 25 includes a control substrate 251 protected by a resin 252. A signal from the sensor 18 is input to the control circuit unit 25 via the signal relay device 26. Further, a signal is input to the control circuit unit 25 from an external device such as an internal combustion engine control unit via the connector 27. The control circuit unit 25 controls the switching elements of the field circuit unit 24 and the pair of power module structures 23 based on these input signals, and adjusts the field current to be output to the rotor winding 14. Do.

  The field circuit unit 24 is configured of an electronic component such as a switching element molded by a mold resin. The switching element of the field circuit unit 24 is switching-controlled by the control circuit unit 25 to adjust the field current to the rotor winding 14. The field circuit unit 24 has a heat sink provided with cooling fins 241. The field current adjusted by the field circuit unit 24 is supplied to the rotor winding 14 to generate a DC magnetic field in the rotor winding 14. The magnetic flux due to the DC magnetic field generated in the rotor winding 14 flows from one of the first iron core portion 13A and the second iron core portion 13B to the other on the circumferential surface of the rotor 5, and the stator winding therebetween Interlock with line 11.

  The pair of power module structures 23 having the same configuration each have the power module 30. Each power module 30 is configured as a power conversion circuit including six switching elements. The power conversion circuit operates as an inverter circuit that converts DC power from the battery into AC power and supplies the AC power to the stator winding 11. The power conversion circuit also converts AC power from the stator winding 11 into DC power to charge the battery and operates as a converter circuit that supplies DC power to the on-vehicle device. The switching element 36 constituting the power conversion circuit is formed of, for example, a semiconductor switching element such as a power transistor, a MOSFET, or an IGBT. The pair of power module structures 23 is configured as a three-phase power conversion circuit, which corresponds to the two sets of armature windings on a one-to-one basis.

  The signal relay device 26 includes a signal relaying member 28 electrically connected to each of the pair of power module structures 23 and the field circuit unit 24. The signal relay member 28 has a signal relay connection portion 29 connected to the control circuit unit 25.

  Next, the rotor 5 of the rotary electric machine according to the first embodiment of the present invention will be described.

  FIG. 3 is a side view of the rotor 5 in which no permanent magnet is disposed. The rotor 5 has a first core portion 13A and a second core portion 13B attached to the rotary shaft 12. The first core portion 13A has eight claw-shaped magnetic poles 131a. The eight claw-shaped magnetic poles 131a are arranged at equal intervals on the outer periphery of the first core portion 13A. On the other hand, the second iron core portion 13B has eight claw-like magnetic poles 131b. The eight claw-shaped magnetic poles 131b are arranged at equal intervals on the outer periphery of the second iron core portion 13B.

  The claw poles 131a of the first core portion 13A and the claw poles 131b of the second core portion 13B protrude in the axial direction of the rotary shaft 12. Further, the claw-shaped magnetic poles 131a of the first iron core portion 13A and the claw-shaped magnetic poles 131b of the second iron core portion 13B are assembled to the rotation shaft 12 in a direction in which they face each other. The claw-shaped magnetic poles 131a of the first iron core portion 13A and the claw-shaped magnetic poles 131b of the second iron core portion 13B are alternately arranged in a mutually spaced relationship. The double arrows shown in FIG. 3 indicate the directions of the front side (F) and the rear side (R) of the rotor 5. The same applies to the double arrows shown in FIG.

  An air gap is formed between the claw-shaped magnetic poles 131a of the first core portion 13A and the claw-shaped magnetic poles 131b of the second core portion 13B adjacent to each other. By arranging the permanent magnets 40 a in the air gaps, it is possible to reliably deliver the magnetic flux between the claw-shaped magnetic poles 131 a and the claw-shaped magnetic poles 131 b and the stator 4.

  FIG. 4 is a view showing the arrangement of the claw-shaped magnetic pole 131 a and the claw-shaped magnetic pole 131 b adjacent to each other and the permanent magnet 40. A permanent magnet 40 a is disposed between each of the claw-shaped magnetic poles 131 a and the claw-shaped magnetic poles 131 b adjacent to each other and the stator 4.

  FIG. 5 shows a cross section taken along the line V-V of FIG. FIG. 5 shows the state before the permanent magnet 40a is inserted. As shown in FIG. 5, a bobbin 45 is disposed in a space surrounded by the first core portion 13A and the second core portion 13B. The rotor winding 14 is wound around the bobbin 45.

  The bobbin 45 has a bobbin body 45a, a wing 451f, and a protrusion 452f as a support. The wing portion 451f extends from the front side of the bobbin main body 45a toward the claw-like magnetic poles 131a and 131b. The wing portion 451f insulates the rotor winding 14 from the claw-like magnetic poles 131a and 131b shown in FIG. The protrusion 452f extends from the front side of the bobbin main body 45a to the front side of the claw-like magnetic pole 131a. The protrusion 452 f is formed so as to be elastically deformable.

  As shown in FIG. 5, a flange portion 132a for supporting the permanent magnet 40a from the radially outer side is formed on the radially outer side of the first core portion 13A in each of the claw-like magnetic poles 131a. Further, in the radial direction inner side of the first iron core portion 13A in each claw-like magnetic pole 131a, a stepped portion 133a is formed which supports the permanent magnet 40a from the inner side in the radial direction. Further, on the rear side of the claw-like magnetic pole 131a, a convex portion 134a is formed which prevents the permanent magnet 40a from moving to the rear side.

  FIG. 6 shows a cross section taken along the line VI-VI of FIG. As shown in FIG. 6, in the claw-shaped magnetic pole 131b adjacent to the claw-shaped magnetic pole 131a, a flange portion 132b and a step portion 133b are formed in the same manner as the claw-shaped magnetic pole 131a. The permanent magnet 40a is inserted into a space surrounded by the flange portion 132a and the step portion 133a of the claw-shaped magnetic pole 131a, and the flange portion 132b and the step portion 133b of the claw-shaped magnetic pole 131b.

  FIG. 7 shows a state in which the permanent magnet 40a is partially inserted from the state of FIG. The permanent magnet 40a is inserted between the claw pole 131a and the claw pole 131b. When the protrusion 452 f contacts the permanent magnet 40 a, it is elastically deformed and bent.

  FIG. 8 shows a state in which the permanent magnet 40a has passed through the projection 452f and abutted against the projection 134a of the claw-like magnetic pole 131a and stopped. At this time, the protrusion 452 f restores from the bent state and contacts the rear side of the permanent magnet 40 a. The permanent magnet 40a is pressed against the projection 134a by the elastic force of the projection 452f.

  By thus configuring the rotor 5 according to the first embodiment, the permanent magnet 40a can be assembled between the adjacent claw-shaped magnetic pole 131a and the claw-shaped magnetic pole 131b without using a dedicated jig. Then, the movement of the permanent magnet 40a to the radially outer side, the radially inner side, the front side, the rear side and both circumferential sides of the rotor 5 can be restricted. Thereby, it is possible to prevent the attachment position of the permanent magnet 40a from being shifted until the adhesive for fixing the permanent magnet 40a between the claw poles 131a and 131b is cured.

  In the first embodiment, only the permanent magnet 40a is inserted between the adjacent claw-shaped magnetic pole 131a and the claw-shaped magnetic pole 131b. On the other hand, as shown in FIG. 9, a flat plate 41a made of nonmagnetic material may be further inserted between the flanges 132a and 132b and the permanent magnet 40a. Thereby, the stress applied to the permanent magnet 40a is relieved.

  FIG. 10 is a diagram showing a first modified example of the first embodiment. The claw-shaped magnetic pole 131a of the rotor 5 in the first modification does not have the step portion 133a and the convex portion 134a. In the rotor 5 of the first modification, a wing 451 f of the bobbin 45 is formed to extend to the rear side. And the wing part 451f formed by extending supports the radial inside and the rear side of the permanent magnet 40a. Thereby, even in the rotor 5 in which the claw-shaped magnetic pole 131a does not have the step portion 133a and the convex portion 134a, the rear side and the radially inner side of the permanent magnet 40a can be supported.

  FIG. 11 is a diagram showing a second modification of the first embodiment. The claw-shaped magnetic pole 131a of the rotor 5 of the second modified example does not have the step portion 133a. The rotor 5 of the second modification supports the radially inner side of the permanent magnet 40 a by the wing 451 f of the bobbin 45. The rear side of the permanent magnet 40a is supported by the convex portion 134a of the claw-like magnetic pole 131a. Thus, the radial inner side of the permanent magnet 40a can be supported even in the rotor 5 in which the claw-shaped magnetic pole 131a does not have the step portion 133a.

  Furthermore, FIG. 12 is a diagram showing a third modification of the first embodiment. The claw-shaped magnetic pole 131a of the rotor 5 of the third modification does not have the step portion 133a. The rotor 5 of the third modification extends the rear side of the bobbin body 45a to form a stepped support portion 453r, and supports the radially inner side and the rear side of the permanent magnet 40a. Thereby, even in the rotor 5 in which the claw-shaped magnetic pole 131a does not have the step portion 133a, the rear side and the radially inner side of the permanent magnet 40a can be supported.

Second Embodiment
FIG. 13 is a diagram showing the rotor 5 in the second embodiment. The rotor 5 of the second embodiment differs from the rotor 5 of the first embodiment in the shape of a support formed on the bobbin 45. The other configuration is the same as that of the first embodiment.

  As shown in FIG. 13, in the rotor 5 of the second embodiment, a projection 451r as a support extends from the rear side of the bobbin main body 45a toward the front side of the claw-like magnetic pole 131a. The tip of the projection 451 r is in contact with the front side of the permanent magnet 40 a.

  As described above, in the rotor 5 of the second embodiment, the length of the protrusion 451 r from the bobbin main body 45 a is longer than the protrusion 452 f of the first embodiment. Thus, the protrusion 451r can be elastically deformed with a force smaller than that of the first embodiment. Therefore, the insertability of the permanent magnet 40a can be improved. The support on the radially inner side and the rear side of the permanent magnet 40a may be in the same form as the first to third modifications of the first embodiment.

Third Embodiment
14-17 is a figure which shows the rotor 5 of Embodiment 3 of this invention. The rotor 5 according to the third embodiment is characterized in that the rotor 5 according to the first embodiment has a stepped support portion 453 f as a first support portion and a stepped support portion 453 r as a second support portion. It is different from The other configuration is the same as that of the first embodiment.

  As shown in FIG. 14, the rotor 5 according to the third embodiment has a stepped support 453f extending from the front side of the bobbin main body 45a toward the claw-like magnetic pole 131a, and a claw shape from the rear side of the bobbin main body 45a. And a stepped support portion 453r extending toward the magnetic pole 131a.

  FIG. 15 shows a state in which the tip of the permanent magnet 40a is inserted between the claw poles 131a and 131b. When the tip of the permanent magnet 40a contacts the stepped support 453f, the stepped support 453f is elastically deformed and bent.

  FIG. 16 shows a state in which the tip of the permanent magnet 40a is further inserted between the claw poles 131a and 131b. When the tip of the permanent magnet 40a abuts on the stepped support 453r, the stepped support 453r is elastically deformed and bent. Further, when the permanent magnet 40a is inserted, the front side of the permanent magnet 40a passes through the stepped support portion 453f. Then, as shown in FIG. 17, the stepped support 453f is restored by the elastic force to support the front side of the permanent magnet 40a. As a result, the permanent magnet 40a is supported on the rear side and the inner side in the radial direction by the stepped support portion 453r, and is supported on the front side and the inner side in the radial direction by the stepped support portion 453f.

  According to the rotor 5 of the third embodiment configured in this manner, the rear side and the radial direction of the permanent magnet 40a are obtained also in the rotor 5 in which the claw-shaped magnetic pole 131a does not have the step portion 133a and the convex portion 134a. It can support the inside.

Fourth Embodiment
FIGS. 18 to 20 show the rotor 5 of the fourth embodiment. The rotor 5 of the fourth embodiment is different from that of the third embodiment in that an L-shaped portion 454f is used as the stepped support portion 453f as a first support portion. The other configuration is the same as that of the third embodiment.

  As shown in FIG. 18, the rotor 5 of the fourth embodiment has an L-shaped portion 454f as a supporting portion extending from the front side of the bobbin main body 45a toward the claw-like magnetic pole 131a.

  FIG. 19 shows a state in which the tip of the permanent magnet 40a is inserted between the claw poles 131a and 131b. When the tip of the permanent magnet 40a contacts the L-shaped portion 454f, the L-shaped portion 454f is deformed so as to be spread.

  FIG. 20 shows a state in which the tip of the permanent magnet 40a is further inserted between the claw poles 131a and 131b. When the end of the permanent magnet 40a abuts on the stepped support 453r, the front end of the permanent magnet 40a is near the bifurcated root of the L-shape formed at the end of the L-shaped portion 454f. To position. Thus, the permanent magnet 40a is supported on the rear side and the radially inner side by the stepped support portion 453r, and is supported on the front side and the radially inner side by the L-shaped portion 454f.

  According to the rotor 5 of the fourth embodiment configured as described above, the rear side and the radial direction of the permanent magnet 40a are also included in the rotor 5 in which the claw-shaped magnetic pole 131a does not have the step portion 133a and the convex portion 134a. It can support the inside.

  Reference Signs List 1 rotating electric machine, 2 rotating electric machine main body, 3 control devices, 4 stators, 5 rotors, 6 cases, 7 front brackets, 8 rear brackets, 10 stator iron cores, 11 stator windings, 12 rotating shafts, 13 rotors Iron core, 13A first core portion, 13B second core portion, 131a, 131b claw-like magnetic pole, 132a, 132b ridge, 133a, 133b stepped portion, 134a convex portion, 14 rotor winding, 40a permanent magnet (magnet 41a flat plate 45 bobbin 45a bobbin main body 451f wing portion (support portion) 451r protrusion portion (support portion) 452f protrusion portion (support portion) 453f stepped support portion (first support portion) 453r Stepped support portion (second support portion), 454f L-shaped portion (first support portion).

Claims (4)

Rotor core,
A plurality of magnets provided on the rotor core and spaced apart from one another in the circumferential direction;
A rotor winding provided on the rotor core and disposed radially inward of the plurality of magnets, and a bobbin interposed between the rotor winding and the rotor core;
The rotor core has a first core and a second core,
The first core portion has a plurality of first claw poles spaced apart from one another in the circumferential direction,
The second core portion has a plurality of second claw poles spaced apart from one another in the circumferential direction,
The first core portion and the second core portion are combined with each other in a state where the first claw-shaped magnetic pole and the second claw-shaped magnetic pole are alternately arranged in the circumferential direction,
Each of the plurality of magnets is provided between a flange portion formed on the radially outer side of the first claw-shaped magnetic pole and the second claw-shaped magnetic pole and a step portion formed on the radially inner side. Inserted from the axial direction into the
The bobbin is provided on a bobbin main body interposed between the rotor core and the rotor winding on the radially inner side of the rotor core than the plurality of magnets, and the bobbin main body, of which a support portion for supporting the respective magnets,
The support projects from the inside in the radial direction into the space, and when the magnet is inserted into the space, it elastically deforms to allow the magnet to pass, and after the magnet passes the support, it is resilient. Restore by force to restrict axial movement of the magnet,
Rotor of rotating electric machine. Before Symbol support part, in the magnet, supporting the site of the axial direction of the rotor core,
The rotor of the rotary electric machine according to claim 1. Before Symbol support part, in the magnet, supporting the site of the axial direction of the rotor core, and a portion of the radially inner side of the rotor core,
The rotor of the rotary electric machine according to claim 1. The support includes a first support and a second support.
The first support portion supports one portion in the axial direction of the rotor core and a portion radially inward in the magnet,
The second support portion supports the other portion in the axial direction of the rotor core and the portion radially inward in the magnet.
The rotor of the rotary electric machine according to claim 1.

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