FR3064132A1 - ELECTRIC ROTATING MACHINE ROTOR FOR USE ON VEHICLES - Google Patents

Abstract

The invention includes a pair of rotor iron cores (13) having a cylindrical boss portion forcefully fitted into a rotor shaft (12), a disk portion extending outwardly in a radial direction from an axially end portion of the boss portion, and a plurality of claw-like magnetic poles (131) extending in an axial direction from an outer peripheral end of the disk portion so as to meshing with each other, a multiplicity of permanent magnets (40a, 40b) inserted between two adjacent claw-like magnetic poles (131) in a circumferential direction, a coil (50) provided around the rotor iron core (13), and a rotor winding (14) provided on the spool (50), wherein a wing portion (501) which supports an inner radial side of the permanent magnet (40a, 40b) is provided on the spool ( 50).

Description

Field of the invention

The present invention relates to a rotor of an electric rotary machine for use on a vehicle, such as an alternating current generator, mounted in a vehicle.

Description of Related Art

There is a technology such as, for example, in order to reliably transfer a magnetic flux between a stator and magnetic poles in the shape of a Lundell-type claw configuring a rotor in an alternating current generator mounted in a vehicle, a permanent magnet is interposed between side faces of the claw-shaped magnetic poles, thereby preventing magnetic flux leakage between claw-shaped magnetic poles. In addition, there is technology to prevent the permanent magnet from flying outward in a radial direction due to centrifugal force, and from being damaged.

As an example of this type of existing technology, there is an electric rotary machine rotor for use on a vehicle such that hollowed portions are provided in disc portions of a pair of rotor iron cores configuring the rotor, and in addition, flanged portions are provided in outer peripheral portions of poles

T 63017 FR / ET-P magnetic claw-shaped, thus retaining a permanent magnet, as disclosed in, for example, JP-A-2008-29124 (patent document 1), or alternatively, there is a rotor of an electric rotary machine for use on a vehicle such as grooving is made in a lateral face of the rotor, and a material softer than a magnet is fitted between an outer peripheral surface of the magnet and the groove, as is disclosed in, for example, JP-A-2000-134888 (patent document 2).

Patent document 1: JP-A-2008-29124

Patent document 2: JP-A-2000-134888

This type of rotor of an electric rotary machine is such that a permanent magnet is commonly fixed with an adhesive or the like, but a hollowed out portion or groove is provided in a magnetic pole in the shape of a claw in order to temporarily fix the permanent magnet. until a layer of adhesive hardens. However, since it is necessary to insert the permanent magnet into this type of hollowed-out portion or groove after that, a dimension in a radial direction of the hollowed-out portion or groove must be larger than a dimension of the permanent magnet. Because of this, an air gap occurs between the hollowed out portion or groove and the permanent magnet in a radial direction, and a position of the permanent magnet varies by an amount equivalent to the air gap, as a result of which a magnetic flux escaping to an outside of the rotor changes, and therefore a problem exists because the performances also vary

T 63017 FR / ET-P

Summary of the invention

The type of problem described so far having been taken into account, the object of the invention is to propose an electric rotary machine rotor for use on a vehicle such as positioning in a radial direction and temporary fixing of a permanent magnet until a layer of adhesive hardens can easily be produced, thus limiting the variation in performance.

An electric rotary machine rotor for vehicle use according to the invention is characterized by including a pair of rotor iron cores having a cylindrical boss portion fitted forcefully into a rotor shaft, a disc portion extending toward the outside in a radial direction from an end portion in the axial direction of the boss portion, and a multiplicity of claw-shaped magnetic poles which extend in an axial direction from an outer peripheral end of the disc portion in order to mesh with each other, a multiplicity of permanent magnets inserted between two of the magnetic poles in the form of neighboring claws in a circumferential direction, a coil provided around the rotor iron core, and a winding of rotor provided on the coil, in which a wing portion which supports an inner radial side of the permanent magnet is provided on the coil.

According to the rotor of an electric rotary machine for use on a vehicle according to the invention, a permanent magnet is temporarily fixed by being pushed towards

T 63017 FR / ET-P an outer radial side by a wing portion provided on a coil, whereby the permanent magnet is temporarily fixed in an appropriately positioned state until a layer of adhesive hardens.

Because of this, a variation in performance of the electric rotary machine for use on vehicle may be limited.

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when considered in conjunction with the accompanying drawings.

Brief description of the drawings

Figure 1 is a sectional view of an electric rotary machine for use on a vehicle according to a first embodiment of the invention;

Figure 2 is a front view of the electric rotary machine for use on a vehicle according to the first embodiment of the invention;

FIG. 3 is a side view showing a state in which no permanent magnet is placed in a rotor of the electric rotary machine for use on a vehicle according to the first embodiment of the invention;

Figure 4 is a partial side view of the rotor of the electric rotary machine for use on a vehicle according to the first embodiment of the invention;

0 Figure 5 is a sectional view in the circumferential direction showing a portion of the rotor of

T 63017 FR / ET-P the electric rotary machine for use on a vehicle according to the first embodiment of the invention;

FIG. 6 is a sectional view in circumferential direction showing a portion of the rotor of the electric rotary machine for use on a vehicle according to the first embodiment of

The invention;

FIG. 7 is a sectional view in axial direction showing a portion of the rotor of the electric rotary machine for use on a vehicle according to the first embodiment of the invention;

FIG. 8 is a diagram showing a rotor winding coil of the electric rotary machine 15 for use on a vehicle according to the first embodiment of the invention;

Figure 9 is a sectional view in axial direction showing a portion of the rotor of the electric rotary machine for use on a vehicle according to the first embodiment of the invention;

FIG. 10 is a partial side view of the rotor of the electric rotary machine for use on a vehicle according to the first embodiment of the invention; and FIG. 11 is a diagram showing a rotor winding coil of an electric rotary machine for use on a vehicle according to a second embodiment of the invention.

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Detailed description of preferred embodiments

Hereinafter, with reference to the drawings, a description of the preferred embodiments of an electric rotary machine rotor for use on a vehicle will be provided according to the invention.

First embodiment

Figure 1 is a sectional view of an electric rotary machine according to a first embodiment of the invention, and shows a cross section seen from a direction of the arrows along a line AA of Figure 2 , which represents a front view. The front view of Figure 2 shows a state in which a cover of a controller, described below, is removed.

In FIG. 1 and FIG. 2, an electric rotary machine 1 is an electric rotary machine with an integrated control device having a main body of an electric rotary machine 2 and a control device 3 mounted in the main body of an electric rotary machine 2, and is mounted in, for example, a vehicle driven by an internal combustion engine. In the first embodiment, the electric rotary machine 1 is configured in the form of an alternating current generator-motor (AC motor-generator) with brush. In the following description, the same reference signs are assigned to identical or corresponding portions in the drawings.

The main body of an electric rotary machine 2 has a tubular stator 4, a rotor 5, which is arranged in an internal space portion of the stator 4 and

T 63017 FR / ET-P can rotate relative to the stator 4, and a housing 6 which supports the stator 4 and the rotor 5. The housing 6 has a roughly bowl-shaped front support 7 and a rear support 8 which retain the stator 4 at each end portion in an axial direction of the stator 4, and a multiplicity of tightening bolts 9 which pass through a space between the front support 7 and the rear support 8, and tighten the front support 7 and the support rear 8 in directions bringing them closer to each other. The front support 7 and the rear support 8 are made of metal. A multiplicity of intake holes (not shown) are formed in a lower portion of each of the approximately bowl-shaped front support 7 and the rear support 8, and similarly, a multiplicity of exhaust holes (not shown ) are formed in the two outer peripheral shoulder portions of the front support 7 and the rear support 8.

The stator 4 has a tubular stator iron core 10, which is held between the front support 7 and the rear support 8 and tightened with the clamping bolts 9, and a stator winding 11 provided on the stator iron core 10 In the first embodiment, the stator winding 11 configures an armature winding of the electric rotary machine 1. The stator winding 11 is configured with one or a plurality of three-phase alternating current windings , each formed by a star connection or delta connection.

The rotor 5 has a rotor shaft 12 disposed on an axial line of the rotor 5, a pair of iron cores

T 63017 FR / ET-P of rotor 13 fixed in an intermediate portion in an axial direction of the rotor shaft 12, and a rotor winding 14 serving as field winding surrounded by the rotor iron cores 13. The pair of rotor iron cores 13 configure so-called claw-pole magnetic poles in which the rotor side 5 is an electromagnet and electricity is generated in the stator winding 11, and include a cylindrical boss portion assembled by being

-10 forcibly adjusted in the rotor shaft 12, a disc portion extending outward in a radial direction from an end portion in the axial direction of the boss portion, and a multiplicity of magnetic poles in the shape of a claw which extend in an axial direction from an outer peripheral end of the disc portion in order to mesh with each other. The pair of rotor iron cores 13 are made of iron, and each core is such that, for example, eight claw-shaped magnetic poles are formed at equal steps in a circumferential direction on an outer peripheral edge, protrude in the axial direction of the rotor shaft 12, and are fixed to the rotor shaft 12, opposite in order to cause the magnetic poles in the shape of a claw to mesh, as will be described below.

The rotor shaft 12 enters the front support 7 and the rear support 8, and is rotatably supported by a pair of bearings 15 each provided in the front support 7 and the rear support 8. An outer peripheral portion of the core of rotor iron 13 is opposite to a peripheral portion

T 63017 FR / ET-P inside the stator 4 through a predetermined air gap Also, a pair of cooling fans 16 for sending air, which are rotated in a single piece with the rotor 5, are provided for each portion end in an axial direction of the rotor iron core 13.

A pulley 17 is fixed to an end portion in an axial direction on the front support side 7 of the rotor shaft 12. A transmission belt (not

1Ό shown) which engages a pivot of an internal combustion engine (not shown) mounted in the vehicle is wound on the pulley 17, and a power transfer is carried out between the rotary electric machine 1 and the combustion engine internal through the transmission belt. Also, a rotation position detection sensor 18 which generates a signal in accordance with the rotation of the rotor shaft 12, and a pair of sliding rings 19 electrically connected to the rotor winding 14, are provided in a vicinity of an end portion in an axial direction on the rear support side 8 of the rotor shaft 12. The sliding rings 19 are configured as ring-shaped conductive members enclosing an outer peripheral portion of the shaft rotor 12.

A pair of brushes 20 configured of conductive material are retained in a brush holder 21 fixed to the rear support 8, and are each urged by a pair of pressure springs 22 in one direction in order to contact each with the sliding rings 19. The brush 20 and the sliding ring 19

T 63017 FR / ET-P come into sliding contact accompanying the rotation of the rotor 5, whereby a field current is supplied to the stator winding 11 via the brush 20 and the sliding ring

19.

The control device 3 has two power module configuration bodies 23 electrically connected to the stator winding 11, a field circuit unit 24 which regulates a DC supply from a vehicle-mounted battery {no shown) serving as a DC power source and providing regulated power as field current to the rotor winding 14, a control circuit unit 25 which controls the power module configuration body 23 and the field circuit unit 24, and a signal relay device 26 which performs the transmission and reception of control signals between

the body of configuration of module of power 23, 20 each field circuit 24, , and unity at circuit ordered 25. The device of ordered 3, as it goes

be described below, is fixed to an end portion in the axial direction of the rear support 8, and is covered with a cover 27 configured with an insulating resin.

Also, a connector for use as an external connection 28 for carrying out the transmission and reception of signals to and from an external device (for example, an internal combustion engine control unit,) is provided in the control unit 25.

T 63017 FR / ET-P

The control circuit unit 25 includes a control substrate 251 having a control circuit, and the control substrate 251 is protected by a resin 252. In addition to a signal from the rotation position detection sensor 18 being transmitted via the signal relay device 26, a signal from an external device, such as an internal combustion engine control unit, is transmitted via the connector 28 to the unit at control circuit 25. The control circuit unit 25, as a function of information according to the signals transmitted, performs a switching command for switching elements (not shown) provided in each of the field circuit unit 24 and the power module configuration body 23.

The field circuit unit 24 is configured with an electronic part such as a switching element molded from resin, and the switching of the switching element is controlled by the control circuit unit 25, by means of whereby a field current to be supplied to the rotor winding 14 is regulated. A heat sink 242 including a cooling fin 241 (refer to Figure 2) is provided in the field circuit unit 24. The field current regulated by the field circuit unit 24 is supplied to the winding rotor 14, causing the rotor winding 14 to generate a direct current field. The magnetic flux caused by the direct current field generated in the rotor winding 14 flows from a rotor iron core 13 in order to reach the other rotor iron core 13 on one side

T 63017 FR / ET-P peripheral of rotor 5, binding with stator winding 11 along the way.

Each of the two identically configured power module configuration bodies 23 includes a power module 29 including six switching elements which configure a power conversion circuit. The configured power conversion circuit of the switching element serves as an inverter circuit which converts DC power from a battery (not shown) to AC power and provides the converted power to the stator winding 11, or serves as a converter circuit which converts an AC power supply from the stator winding 11 into DC power supply, thereby charging the battery, and supplies DC power to a device mounted on a vehicle. The switching element configuring the power conversion circuit is configured with a semiconductor switching element such as a power transistor, MOSFET, or IGBT. The two power module configuration bodies 23 configure three-phase power conversion circuits each corresponding to two sets of armature windings.

The signal relay device 26 has a signal relay member 30 electrically connected to each of the power module configuration body 23 and the field circuit unit 24, and a signal relay connection portion 31 provided on the signal relay member 30 and connected to the control circuit unit 25. Transmission and reception of signals

T 63017 FR / ET-P between the power module configuration body 23, the field circuit unit 24, and the control circuit unit 25 is produced by means of the signal relay device 26 configured as this has been described so far.

Now, the rotor 5 of the electric rotary machine 1 will be described in detail.

Figure 3 is a side view of the rotor 5 in a state in which no permanent magnet is inserted. The rotor 5 is configured so that claw-shaped magnetic poles 131 of each of the pair of rotor iron cores 13 mesh with each other, and when the rotor winding 14 is energized by a field current, one of two claw-shaped magnetic poles 131 neighbors in a circumferential direction is magnetized to be an N pole, the other is magnetized to be an S pole, and a magnetic flux is transferred in a circumferential direction between side faces in mutually opposite circumferential direction.

An air gap is formed by the lateral faces in the circumferential direction of a claw-shaped magnetic pole 131 and a neighboring claw-shaped magnetic pole 131. The claw-shaped magnetic pole 131 is such that a cross section has a shape substantially trapezoidal, has a tapered shape which tapers towards a front end portion, and flange portions 132a and 132b described below are formed on an outer peripheral face. A permanent magnet described below is inserted in the air gap formed by the side faces in the direction

T 63017 FR / ET-P circumferential of a magnetic pole in the shape of claw 131 and of a magnetic pole in the shape of neighboring claw 131. A shouldered portion engraved in depth in the axial direction to form a hollowed out portion is formed to be continues with the side face in the circumferential direction and flange portions 132a and 132b in the disc portion of the rotor iron core 13 An end face in the axial direction of the permanent magnet is retained in the axial direction by the shouldered portion. A dimension in the radial direction of the shouldered portion is adjusted to be greater than a thickness in the radial direction of the permanent magnet.

The permanent magnet is such that one of two lateral faces in the circumferential direction forms a magnetic pole face of pole N, and the other forms a magnetic pole face of pole S. In addition, the permanent magnet is disposed between two magnetic claw-shaped poles 131 so that the lateral face of pole N is opposite to the lateral face in the circumferential direction of the magnetic pole in the form of claw 131 magnetized to be an N pole, and the lateral face of pole S is opposite the side face in circumferential direction of the claw-shaped magnetic pole 131 magnetized to be an S pole. Because of this, the magnetic flux can be reliably transferred between the claw-shaped magnetic pole 131 and the stator 4. L permanent magnet is a rare earth magnet, such as a neodymium magnet, configured under

0 cuboid shape, and is embedded in the rotor 5 to

T 63017 FR / ET-P that a longitudinal direction of the magnet is oriented in the axial direction.

FIG. 4 is a developed view of a portion of the rotor 5, seen from one side, and is a simplified view showing only the claw-shaped magnetic pole 131 of FIG. 3 and permanent magnets 40a and 40b, which are omitted from FIG. 3. In FIG. 4, the claw-shaped magnetic pole 131 is represented in the form of claw-shaped magnetic poles 131a to 13lc.

As shown in Figure 4, the permanent magnets 40a and 40b are inserted among the claw-shaped magnetic poles 131a to 131c. An ascending direction in the drawing is a front side on which the pulley 17 (refer to figure 1) is assembled, and a descending direction in the drawing is a rear side on which the control device 3 (refer to figure 1) is assembled.

Figure 5 is a sectional view A-A of Figure 4, and is a sectional view before a magnet is inserted. A coil 50 is provided around the rotor iron core 13, and the rotor winding 14 is provided on the coil 50. In addition, a wing portion 501 is provided integrally with the coil 50 in order to electrically insulate the rotor winding 14 and the claw-shaped magnetic pole 131a. Here, when a front side of the wing portion 501 is considered to be a front side wing portion 501f and a rear side is considered to be a rear side wing portion 501r, the front side wing portion 501f extends to a position into which the permanent magnet 40a is inserted. Good

T 63017 FR / ET-P that it is not absolutely necessary that the coil 50 and the wing portion 501 be provided in a single piece, this is an advantage because the manufacturing becomes faster due to the fact that the coil 50 is provided in a single piece with the wing portion 501.

Figure 6 is a sectional view A-A of Figure 4, and is a sectional view after a magnet is inserted. The permanent magnet 40a is inserted from the front side, this causing the front side wing portion 501f of the / wing portion 501 provided on the coil 50 to be pressed and bent. The coil 50 is configured with a soft member with elasticity, such as a polyamide-based resin, and the insertion of the permanent magnet 40a can be carried out easily. After the permanent magnet 40a is inserted, the permanent magnet 40a is pushed to an outer radial side by elasticity of the front side wing portion 501f. As described above, the flange portion 132a is formed on the outer peripheral face of the claw-shaped magnetic pole 131a so that the permanent magnet 40a does not fly towards the outer peripheral face due to the centrifugal force, and the permanent magnet 40a is pressed against the flange portion 132a, and against the flange portion 132b formed in the same way in the claw-shaped magnetic pole 131b illustrated in FIG. 7, described below. Because of this, positioning in the stable radial direction of the permanent magnet 40a is achieved with the flange portion 132a and the flange portion 132b as references. Also, the permanent magnet 40a is temporarily fixed by the elasticity of the front side wing portion 501f, and

T 63017 FR / ET-P there is no positional deviation caused by the weight of the permanent magnet 40a itself, or the like. In this way, a step of insertion, positioning, and temporary fixing of the permanent magnet 40a can be easily carried out by using the front wing portion 501f.

Figure 7 is a sectional view BB of Figure 4. The wing portion 501 of the coil 50 has the front side wing portion 501f and the rear side wing portion 501r, and, although only the front side wing portion 501f supports the permanent magnet 40a in FIG. 7, the permanent magnet 40a can be supported by only the rear wing portion 501r, or as a variant, the permanent magnet 40a can be supported at the same time by the wing portion of front side 501f and the rear side wing portion 501r.

Figure 8 is a schematic view of the coil 50. Figure 8 is an example of a case in which only the front wing portion 501f is a structure which presses a permanent magnet, so that only the wing portion side front 501f be extended

In FIG. 5, FIG. 6, and FIG. 7, a precondition is that the permanent magnets 40a are all inserted from the front side, but, in the case where the rear side wing portion 501r of the coil 50 on the rear side extends to the insertion area of the permanent magnet 40a, it is possible that the permanent magnet 40a hooks onto a front end of the rear side wing portion 501r and that the insertion magnet is difficult, and therefore the ease of magnet insertion is not obtained. Because of this, a magnet

T 63017 FR / ET-P permanent can be inserted more easily thanks to the fact that the magnet is supported only by the wing portion 501 of the coil 50 on the same side as the direction of insertion of the permanent magnet. Also, the permanent magnet can also be inserted from the rear side. In this case, it is more desirable that only the rear side wing portion 501r of the coil 50 be a structure which presses the permanent magnet.

Figure 9 is another example of the sectional view

B-B of Figure 4. In Figure 9, a flat plate-shaped protective member 90 configured with a non-magnetic body is mounted between the permanent magnet 40a and the flange portions 132a and 132b. In the case of FIG. 7, the permanent magnet 40a is pushed towards the external radial side by the front wing portion 501f of the coil 50 during the insertion of the permanent magnet 40a, and therefore it is possible that the permanent magnet 40a and the flange portions 132a and 132b rub against each other, the permanent magnet 40a being damaged. Because of this, the configured protective member 90 of a non-magnetic body is mounted for the purpose of protecting the permanent magnet 40a.

According to the rotor of an electric rotary machine for use on a vehicle according to the first embodiment, as described above, the permanent magnets 40a and 40b are temporarily fixed by being pushed towards the outer peripheral face of the claw-shaped magnetic poles 131a and 131b by the elasticity of one or both of the front wing portion 501f and the side wing portion

T 63017 FR / ET-E rear 501r of the wing portion 501 provided on the coil 50, and positioned in the radial direction * with the flange portions 132a and 132b of the claw-shaped magnetic pole 131 as references, and therefore the permanent magnets 40a and 40b are temporarily fixed in an appropriately positioned state until a layer of adhesive hardens. Because of this, a variation in performance of the electric rotary machine for use on vehicle may be limited.

Second embodiment

Next, an electric rotary machine rotor for use on a vehicle according to a second embodiment of the invention will be described.

In the first embodiment, a description has been provided, the precondition being that the permanent magnets are all inserted from the same direction, this being the front side or the rear side, but, in this case, trajectories insertions interfere with each other, and permanent magnets that cannot be inserted simultaneously exist, as is the case with the permanent magnet 40a and the permanent magnet 40b shown in, for example, the figure 10. In order to resolve this, the second embodiment adopts a structure such that permanent magnets, whose insertion paths interfere with each other, are inserted, each from the front side and from the rear side whereby the permanent magnet 40a and the permanent magnet 40b can be inserted simultaneously.

T 63017 FR / ET-P

In this case, the shape of the coil 50 differs from that in the first embodiment, and a desirable structure is such that a permanent magnet inserted from the front side is pushed by the front side wing portion 501f, and a permanent magnet inserted from the rear side is pushed by the rear side wing portion 501r. The reason for this is the same as in the first embodiment. An example of the shape of the coil 50 in the second embodiment is shown in FIG. 11. In FIG. 8, only the area of the front side wing portion 501f or of the rear side wing portion 501r is extended, but, in Figure 11, the areas of the front side wing portion 501f as well as the rear side wing portion 501r are extended.

Third embodiment

Next, an electric rotary machine rotor for use on a vehicle according to a third embodiment of the invention will be described.

In the first embodiment and the second embodiment, the structure is such that the permanent magnets 40a and 40b are inserted after the rotor 5 is generally assembled. In the third embodiment, although omitted from the drawings, a structure is such that the permanent magnets 40a and 40b are also assembled during the assembly of the rotor iron cores from the front side and from the rear side 13. In this case, in order to retain the permanent magnets 40a and 40b,

0 one face on an inner radial side of the six faces of the cubic permanent magnet is retained by the coil 50,

T 63017 FR / ET-P while the other five faces are covered by the claw-shaped magnetic pole 131, as is the case with the flange portions 132a and 132b, whereby the permanent magnets 40a and 40b are retained.

In the third embodiment, since the permanent magnets 40a and 40b are not inserted as in the first embodiment and the second embodiment, it is not necessary to obtain ease of insertion. Because of this, the wing portion 5hl of the coil 50 which pushes the permanent magnets 40a and 40b can be the front side wing portion 501f or the rear side wing portion 501r, or alternatively both. In the third embodiment, there is an advantage because the ease of positioning in the radial direction and temporary fixing is obtained.

Above, a description has been provided of the rotors of the rotary electrical machines for use on a vehicle according to the embodiments, from the first to the third, of the invention, but the embodiments can be combined freely, and each mode of embodiment may be modified or abridged as appropriate, without departing from the scope of the invention.

A protective member (90) comprising a non-magnetic body may be included between an inner radial face of a flange portion 132a, 132b formed on an outer peripheral face of the claw-shaped magnetic pole 131a, 131b and a surface on a radial side. outside of the permanent magnet 40a, 40b.

The permanent magnet 40a, 40b may be cubic in shape, and be arranged so that five sides of the magnet

T 63017 FR / ET-P permanent 40a, 40b, excluding a surface on an inner radial side, are surrounded by faces of the magnetic pole in the shape of a claw 131.

T 63017 FR / ET-P

Claims (2)

1. Rotor of an electric rotary machine for use on a vehicle, characterized in that it includes: a pair of rotor iron cores (13) having a cylindrical boss portion fitted forcefully into 5 a rotor shaft (12), a disc portion extending outward in a radial direction from an end portion in the axial direction of the boss portion, and a plurality of claw-shaped magnetic poles (131) which extend in a 10 axial direction from an outer peripheral end of the disc portion in order to mesh with each other; a plurality of permanent magnets (40a, 40b) inserted between two of the magnetic poles in the form of 15 claw (131) neighbors in a circumferential direction; a coil (50) provided around the pair of rotor iron cores (13); and a rotor winding (14) provided on the 20 coil (50), wherein a wing portion (501) which supports an inner radial side of the permanent magnet (40a, 40b) is provided on the coil (50). 2. Rotor of an electric rotary machine for use on a vehicle according to claim 1, characterized in that the coil (50) comprises a member having an elasticity, and the wing portion (501) is configured in one piece with the coil ( 50). T 63017 FR / ET-P 3. Rotor of an electric rotary machine for use on a vehicle according to claim 1 or 2, characterized in that only the wing portion (501) on the same side as a direction of insertion of the magnet 5 permanent (40a, 40b) supports the inner radial side of the permanent magnet (40a, 40b). 4. Rotor of an electric rotary machine for use on a vehicle according to any one of 10 claims 1 to 3, characterized in that a protective member (90) comprising a non-magnetic body is included between an inner radial face of a flange portion (132a, 132b) formed on an outer peripheral face of the shaped magnetic pole of 15 claw (131a, 131b) and a surface on an outer radial side of the permanent magnet (40a, 40b). 5. Rotor of an electric rotary machine for use on a vehicle according to any one of 2 0 claims 1 to 4, characterized in that the permanent magnet (40a, 40b) is cubic in shape, and arranged so that five faces of the permanent magnet (40a, 40b), excluding a surface on an inner radial side, are surrounded by faces of the shaped magnetic pole 25 of claw (131). S.63017 FR / ET-P 1/7