FR3092711A1 - ROTATING ELECTRIC MACHINE FOR VEHICLES - Google Patents

Abstract

A rotating electric vehicle machine (1) is provided, in which permanent magnets (40a, 40b) can be positioned and fixed, each between two adjacent poles of a plurality of claw-shaped magnetic poles (70a, 70b, 70c ), by an adhesive (60) or an anaerobic adhesive agent, suppressing an increase in the weight of a rotor (5). The rotary electric vehicle machine (1) comprises a stator (4) and a rotor (5) which has a pair of rotor cores (13), which, being disposed opposite facing each other on the inner peripheral side of the vehicle. stator (4), have the plurality of claw-shaped magnetic poles (70a, 70b, 70c), and the permanent magnets (40a, 40b) which are each disposed between two adjacent poles of the plurality of claw-shaped magnetic poles (70a, 70b, 70c) circumferentially adjacent, wherein the permanent magnets (40a, 40b) are each positioned between two adjacent poles of the plurality of claw-shaped magnetic poles (70a, 70b, 70c) by an adhesive (60) or an anaerobic adhesive agent, and are thus attached to the claw-shaped magnetic poles (70a, 70b, 70c).

Description

ROTATING ELECTRIC MACHINE FOR VEHICLE

The present invention relates to the field of a rotating electrical machine for a vehicle.

Description of Related Art

For example, in a rotating electrical machine for a vehicle, a technology is heretofore known, in which, in order to reliably receive and emit magnetic fluxes between Lundell-type claw-shaped magnetic poles configuring a rotor and a stator , leakage of magnetic fluxes between the claw-shaped magnetic poles is prevented by interposing permanent magnets between the side surfaces of the claw-shaped magnetic poles.

Also, as such technology hitherto known, a technology is disclosed in which a groove is formed, by machining, on a side surface of each of the claw-shaped magnetic poles of a pair of rotor cores configuring a rotor, and permanent magnets are restrained by the grooves (e.g., refer to patent literature 1).

As another hitherto known technology, a technology is disclosed in which permanent magnets are restrained by disc-shaped holding portions attached to a rotor so as to cover all of both axial end surfaces of the rotor (e.g. refer to patent literature 2).

The rotor of this kind of rotary electric machine for vehicle is such that the permanent magnets are commonly fixed finally by using an adhesive agent, such as varnish, but the claw-shaped magnetic poles are provided with the parts of groove or holding parts for the purpose of temporarily fixing the permanent magnets until the adhesive agent hardens.

[Patent literature 1] JP-A-2009-538107

[Patent Literature 2] Japanese Patent ^No. 4,492,658

However, the previously described rotor having the groove portions, as in patent literature 1, has a problem in that a gap must exist between a permanent magnet and its adjacent grooves in order to insert the permanent magnet, and in that the permanent magnet is not strictly fixed due to the gap after being inserted, and thus cannot be positioned accurately.

Also, the patent literature 2 vehicular alternating current generator described above has a problem in that the permanent magnets are restricted by using the holding parts as separate parts which are attached to the rotor so as to cover all of the parts. two axial end surfaces of the rotor, increasing the number of parts and the weight of the rotor, resulting in deterioration of the performance of the rotor.

The present disclosure has been made to solve the above problems and an object of the present disclosure is to provide a rotating electrical machine for a vehicle in which permanent magnets can each be positioned and fixed between two adjacent poles of a plurality of poles claw-shaped magnets by an adhesive or anaerobic adhesive agent, suppressing an increase in the weight of a rotor.

A rotary electrical machine for a vehicle according to an aspect of the present disclosure has a stator and a rotor which is arranged opposite each other on the inner peripheral side of the stator and which has a pair of rotor cores having a plurality of poles claw-shaped magnetic poles, and permanent magnets which are each disposed between two adjacent poles of the plurality of circumferentially adjacent claw-shaped magnetic poles, wherein the permanent magnets are each positioned between two adjacent poles of the plurality of circumferentially adjacent claw-shaped magnetic poles of claw by an adhesive or an anaerobic adhesive agent, and are thus fixed to the claw-shaped magnetic poles.

The rotating electric vehicle machine according to one aspect of the present disclosure can provide a rotating electric vehicle machine in which the permanent magnets can each be positioned and fixed between two adjacent poles of the plurality of claw-shaped magnetic poles by an adhesive or an anaerobic adhesive agent, suppressing an increase in rotor weight.

is a sectional view showing a rotating electrical machine for a vehicle according to the first embodiment of the present disclosure.

is a front view showing the rotary electric vehicle machine according to the first embodiment of the present disclosure.

is a side view showing a rotor of the rotating electric vehicle machine shown in Fig. 1.

is an enlarged side view of the rotor shown in Figure 3.

is a side view when looking at the section along line AA in Figure 4 from the direction of A.

is a sectional view along line BB of Figure 4.

is a side view showing an example modification of Figure 5.

is a sectional view showing a rotor of a rotary electric machine for a vehicle according to the second embodiment of the present disclosure.

is a side view showing a rotor of a rotating electrical machine for a vehicle according to the third embodiment of the present disclosure.

is a cross-sectional view showing the rotor of the rotary electric vehicle machine according to the third embodiment of the present disclosure.

is a top view showing a permanent magnet, and a magnet holder part, of the rotary electric vehicle machine according to the third embodiment of the present disclosure.

is a top view showing an example modification of Figure 11.

first m ode of achievement

Hereinafter, a description of the first embodiment of the present disclosure will be given based on the drawings. In the individual drawings, like signs show the same or equivalent parts.

Fig. 1 is a cross-sectional view of a rotary electric vehicle machine according to the first embodiment of the present disclosure, and Fig. 2 is a front view of the rotary electric vehicle machine according to the first embodiment of the present disclosure. this disclosure. Also, Figure 1 shows a sectional view along line A-A of Figure 2 as seen from the direction of the arrows. Similarly, Figure 2 shows the condition in which a coating 38 of a controller 3 of Figure 1 is removed.

In FIGS. 1 and 2, a rotating electric machine for a vehicle 1, which is a rotating electric machine integrated in a control device comprising a main body of the rotating electric machine 2 and the control device 3 mounted on the main body of the electric machine rotating 2, is intended to be mounted in, for example, a vehicle driven by an internal combustion engine. In the first embodiment of the present disclosure, the vehicular rotating electric machine 1 is configured as a brushed alternating current motor-generator.

The rotating electric machine main body 2 comprises a cylindrical stator 4, a rotor 5 which, being disposed in an internal space part of the stator 4, can rotate with respect to the stator 4, and a casing 6 which supports the stator 4 and the rotor 5. The casing 6 comprises a front support 7 and a rear support 8, which grip the stator 4 at its two axial end parts, and a plurality of fixing bolts 9 which, being installed between the front supports and rear 7 and 8, fix the front and rear supports 7 and 8 in a direction of mutual approach. The front and rear supports 7 and 8 are made of metal. A plurality of air intake openings are formed in each of the substantially bowl-shaped lower portions of the front and rear supports 7 and 8, and likewise a plurality of air discharge openings are formed in each of the respective outer peripheral shoulder portions of the front and rear supports 7 and 8.

The stator 4 comprises a cylindrical stator core 10, which, being clamped between the front and rear supports 7 and 8, is fixed by the fixing bolts 9 previously described, and a stator winding 11 which, acting as a winding of armature, is formed on the stator core 10. In the first embodiment of the present disclosure, the stator winding 11 configures the armature winding of the rotating electric vehicle machine 1. The stator winding 11 constitutes one or a plurality of three-phase alternating current windings each formed of a star connection or a delta connection.

The rotor 5 comprises a rotor shaft 12 arranged on the axis of the rotor 5, a pair of rotor cores 13 fixed to the axially intermediate part of the rotor shaft 12, and a rotor winding 14 which, acting as a field winding, is enclosed by the rotor cores 13. The pair of rotor cores 13 configure so-called pole-to-claw type magnetic poles. The pair of rotor cores 13, being made of iron, each have, for example, eight claw-shaped magnetic poles provided on the outer periphery of the rotor core 13 at equiangular pitches and protruding in an axial direction from the rotor shaft 12, and are attached to the rotor shaft 12, opposed to each other so as to bring a set of eight claw-shaped magnetic poles into engagement with each other. The rotor winding 14 is enclosed by a pair of magnetic pole cores.

The rotor shaft 12, passing through the front and rear supports 7 and 8, is supported in rotation by means of a pair of bearings 15 each provided on one of the front and rear supports 7 and 8. The peripheral parts outer rotor cores 13 are opposed to the inner peripheral portion of the stator 4 through a predetermined gap. Also, a pair of cooling fans 16, which, being used to blow air, are rotated integrally with the rotor 5, are each provided on the axial end portion of one of the rotor cores. 13.

A pulley 17 is fixed to the front support-side axial end portion 7 of the rotor shaft 12. A transmission belt (not shown) interlocked with the rotating shaft of an internal combustion engine (not shown) mounted in a vehicle is wrapped around the pulley 17, and power transmission and reception is performed between the rotary electric vehicle machine 1 and the internal combustion engine through the transmission belt. Also, a rotation position detecting sensor 18, which generates a signal corresponding to rotation of the rotor shaft 12, and a pair of slip rings 19, which are electrically connected to the rotor winding 14, are provided. in the vicinity of the rear support-side axial end portion 8 of the rotor shaft 12. The slip rings 19 constitute an annular conductive member surrounding an outer peripheral portion of the rotor shaft 12.

A pair of brushes 20 made of a conductive material, being held in a brush holder 21 fixed to the rear support 8, urged by one of a pair of pressure springs 22, in a direction in which the brushes 20 come in contact with their respective slip rings 19. The brushes 20 come into sliding contact with the respective slip rings 19 together with a rotation of the rotor 5, supplying a field current to the rotor winding 14 through the brushes 20 and the collective rings 19.

The controller 3 has two power supply module configuration bodies 23 electrically connected to the stator winding 11, a field circuit section 24 which adjusts the DC power supply from an on-board battery (not shown) as a DC power source to be a field current and supply the rotor winding 14 with the field current, a control circuit section 25 which controls the module configuration bodies of power supply 23 and the field circuit section 24, and a signal relay unit 26 for realizing transmission and reception of control signals between the power module configuration bodies 23, the field circuit section 24, and the control circuit section 25. The control device 3 is attached to the axial end portion of the rear bracket 8 and covered by a coating 38 made of an insulating resin, as will be described later. Also, an external connection connector 27 for performing signal transmission and reception with an external unit (for example, an internal combustion engine control unit) is provided on the control circuit section 25.

The control circuit section 25 includes a control board 251 having a control circuit, and the control board 251 is protected with a resin 252. A signal from the rotation position detecting sensor 18 is transmitted to the control section. control circuit 25 through the signal relay unit 26, and at the same time a signal from an external unit, such as an internal combustion engine control unit, is transmitted to the section control circuit section 25 through the external connection connector 27. The control circuit section 25, based on information from the transmitted signals, controls switching elements provided in each of the field circuit section 24 and power module configuration bodies 23.

The field circuit section 24 is made of electronic parts, such as switching elements, which are molded from a mold resin, and the switching elements are switched-controlled by the control circuit section 25, adjusting the field current to be supplied to the rotor winding 14. The field circuit section 24 is provided with a heat sink comprising cooling fins 242. The field current adjusted by the field circuit section 24 is supplied to the rotor winding 14, generating a DC field in the rotor winding 14. Magnetic fluxes from the DC field generated in the rotor winding 14 flow over the peripheral surface of the rotor 5 from so as to flow from one rotor core 13 to the other rotor core 13, while the magnetic fluxes bind to the stator winding 11. Also, the field circuit section 24 is fixed by a part flange 241, com Figure 2 shows it to me.

The two power supply module configuration bodies 23 of identical configuration each include a power supply module 30 comprising six switching elements configuring a power converter circuit. The power modules 30 are fixed with a resin 34. Also, the stator winding 11 extends to the power module configuration bodies 23, and one winding end 111 is connected to the power module configuration bodies. power supply module 23. The power converter circuits made up of the switching elements each operate as an inverter circuit which converts DC power from the battery (not shown) to AC power and provides power to alternating current to the stator winding 11, or each function as a converter circuit which converts the alternating current power from the stator winding 11 into direct current power, and charges the battery, and also supplies the power direct current to an on-board unit.

The switching elements configuring the power converter circuits each consist of a semiconductor switching element, such as a power transistor, a MOSFET, or an IGBT. The two power module configuration bodies 23 configure three-phase power converter circuits that correspond one to one to two pairs of armature windings. Also, the power module configuration bodies 23 are each provided with a heat sink 32 including cooling fins 323. Also, as shown in Figure 2, the power module configuration bodies 23 each include signal terminals 50, 56 and AC terminals 55, and are each secured by flange portions 51.

The signal relay unit 26 has signal relay members 28, which are each electrically connected, to one of the power module configuration bodies 23 and the field circuit section 24, and connection parts of signal relays 29 which, being provided on the signal relay members 28, are connected to the control circuit section 25. The signal transmission and reception between the power module configuration bodies 23, the section field circuit section 24, and control circuit section 25 are implemented via signal relay unit 26 configured as previously described.

Subsequently, a detailed description of the rotor 5 of the rotary electrical machine for a vehicle 1 will be given according to the first embodiment of the present disclosure.

Fig. 3 is a side view of the rotor of the rotating electric vehicle machine shown in Fig. 1, showing the condition of the rotor before permanent magnets were disposed thereon. As shown in Fig. 3, the rotor 5 is configured so that claw-shaped magnetic poles 70a, 70b, 70c of the pair of rotor cores 13 engage each other. For example, an air gap W1 is formed between the respective circumferential side surfaces of a claw-shaped magnetic pole 70b and the adjacent claw-shaped magnetic pole 70c. It is possible, by arranging permanent magnets in each of the air gaps W1, to reliably transmit and receive magnetic fluxes between the claw-shaped magnetic poles 70a, 70b, 70c and the stator 4.

Fig. 4 is an enlarged side view of the rotor of the rotary electric vehicle machine according to the first embodiment of the present disclosure. Fig. 4, being a developed view as seen from the lateral side of the rotor 5, is a simplified diagram showing only the claw-shaped magnetic poles 70a, 70b, 70c and permanent magnets 40a, 40b. As shown in Fig. 4, the permanent magnet 40a is disposed between the claw-shaped magnetic poles 70a, 70b, and the permanent magnet 40b is disposed between the claw-shaped magnetic poles 70b, 70c. In Fig. 4, the upper direction on the paper is the front side on which the pulley 17 is to be assembled, and the lower direction on the paper is the rear side on which the control device 3 is to be assembled.

Also, Fig. 5 is a side view when looking at the section along line AA of Fig. 4 from the direction of A, and Fig. 6 is a sectional view BB of Fig. 4. As the shown in Figs. 5 and 6, flange portions 71a, 71b are respectively formed on the claw-shaped magnetic poles 70a, 70b so that the permanent magnet 40a does not centrifugally dislocate. The permanent magnet 40a is positioned between the claw-shaped magnetic poles 70a, 70b by an adhesive 60, such as double-sided tape, and is thus temporarily attached to the flange portions 71a, 71b of the claw-shaped magnetic poles. 70a, 70b. The permanent magnet 40a is precisely positioned by being temporarily fixed by the adhesive 60. Air gaps W2 are between the permanent magnet 40a and the claw-shaped magnetic poles 70a, 70b, and an adhesion layer (not shown), for example, in varnish penetrates each of the air gaps W2 and is hardened, thereby completely fixing the permanent magnet 40a. Namely, the adhesion layer (not shown) is provided between the permanent magnet 40a and each of the plurality of claw-shaped magnetic poles 70a, 70b, and the permanent magnet 40a is fixed by reaction of the layers of adhesion (not shown) with an accelerated hardening process. According to the rotary electric vehicle machine 1 according to the first embodiment of the present disclosure, the permanent magnet 40a can be positioned by the adhesive 60 which is thin in thickness and light in weight, so that it is possible to eliminate an increase in the weight of the rotor 5.

Here, an adhesive agent (not shown) is fixed by undergoing a reaction by a curing acceleration process, such as heating, curing agent administration, or UV irradiation. On the other hand, the adhesive 60 adheres simply by applying light pressure at room temperature for a short time without using, for example, water, solvent, or heat, and does not involve reaction by a process of hardening acceleration or the like.

Fig. 7 is a side view showing an example of modification of Fig. 5. As shown in Fig. 7, adhesives 60 may be arranged to form an air gap W3 in a part between the permanent magnet 40a and the parts flange 71a, 71b. This further suppresses an increase in the weight of the rotor 5, and an adhesion layer (not shown), for example, of varnish penetrates the air gap W3, thus increasing the adhesion area of the permanent magnet 40a on the flange parts 71a, 71b, allowing an increase in the fixing power of the permanent magnet 40a.

Second embodiment

Fig. 8 is a cross-sectional view showing a rotor of a rotary electrical machine for a vehicle according to the second embodiment of the present disclosure, and specifically, is a cross-sectional view along the line BB of Fig. 4 used in the description of the first embodiment of the present disclosure. As shown in Figure 8, in the second embodiment of the present disclosure, an adhesive 60 is disposed between a side surface of the permanent magnet 40a and the side surface of the claw-shaped magnetic pole 70a or 70b. Therefore, the permanent magnet 40a is positioned between the claw-shaped magnetic pole 70a and the claw-shaped magnetic pole 70b, and is thus temporarily fixed. In this way, it is possible to obtain the same advantageous effect although the adhesive 60 is changed in terms of its disposed position as long as it is disposed between the permanent magnet 40a and the claw-shaped magnetic pole 70a, 70b.

Third embodiment

Fig. 9 is a side view showing a rotor of a rotary electric vehicle machine according to the third embodiment of the present disclosure, and specifically, is a side view when looking at the section along the line AA of Fig. 4, used in the description of the first embodiment of the present disclosure, from the direction of A. Also, Fig. 10 is a cross-sectional view showing the rotor of the rotating electric vehicle machine according to the third mode embodiment of the present disclosure, and specifically, is a cross-sectional view along line BB of Figure 4 used in the description of the first embodiment of the present disclosure.

As shown in Figs. 9 and 10, a rotary electrical machine for a vehicle 1 according to the third embodiment of the present disclosure comprises a magnet carrier 41 for preventing a permanent magnet 40a provided in the rotor 5 from fragmenting and breaking apart. dislocate during cracking and also to improve the transportability at the time of assembly.

The magnet holder 41, covering the side surfaces of the two axial end portions, and the inner diameter side surface (the lower sides in the drawing), of the permanent magnet 40a, is formed to cover three surfaces of permanent magnet 40a or more. Further, the magnet holder 41 includes holding portions 42, for holding the outer diameter side (the upper side in the drawing) of the permanent magnet 40a, and a projection portion 43 for positioning the permanent magnet 40a at the time of shipment. Therefore, the assembled permanent magnet 40a is reliably positioned in an arbitrary position at the time of assembly, and can also be retained in place without breaking into pieces even when cracking. Also, the magnet holder 41, the holding parts 42, and the projecting part 43, being made of a resin, are also small in volume and light in weight.

Fig. 11 is a top view showing the permanent magnet and the magnet holder part of the rotary electric vehicle machine according to the third embodiment of the present disclosure. An adhesive 60, such as double-sided tape, is formed on the outer diameter side of the permanent magnet 40a, as shown in Fig. 11, and thus the holding portions 42 of the magnet holder 41 are each formed there. one of the two axial end portions of the permanent magnet 40a so as not to interfere with the adhesive 60.

Also, Fig. 12 is a top view showing an example of modification of the permanent magnet and magnet holder portion shown in Fig. 11. As shown in Fig. 12, adhesives 60, such as tape double-sided, are formed only on respective parts of the flange parts 71a, 71b, to each of which adheres one of the adhesives 60, and thus, a single holding part 42 of the magnet holder 41 is formed continuously axially from the to the other side end portion of the magnet holder 41.

Fourth Embodiment

In the fourth embodiment of the present disclosure, an adhesive agent which does not include curing acceleration processes, such as heating, curing agent administration, or UV irradiation, for example, an anaerobic instant adhesive agent, is used for temporary attachment instead of using adhesive 60, such as double-sided tape. The previously described process results in an increase in assembly labor, leading to a deterioration in productivity and an increase in cost. Also, it is also possible that a curing agent dissolves, for example, in a post-process varnish, causing an undesirable effect. The adhesive agent needs more time to adhere than the adhesive 60, such as double-sided tape, but has a higher fixing power than the adhesive 60, and thus the permanent magnets 40a, 40b are less likely to come off, for example, when transporting the rotor 5.

According to each of the rotary electrical machines for vehicle 1 of the first to fourth embodiments of the present disclosure, as above, it comprises the stator 4 and the rotor 5 which is arranged opposite to the inner peripheral side of the stator 4 and which has the pair of rotor cores 13 having the plurality of claw-shaped magnetic poles 70a, 70b, 70c, and the permanent magnets 40a, 40b each disposed between two adjacent poles of the plurality of claw-shaped magnetic poles 70a, 70b, 70c circumferentially adjacent, the permanent magnets 40a, 40b each being positioned between two adjacent poles of the plurality of claw-shaped magnetic poles 70a, 70b, 70c by the adhesive 60 or an anaerobic adhesive agent, and thus being attached to the magnetic poles by claw shape 70a, 70b, 70c.

also, as shown in Figure 1, the pair of rotor cores 13 each have a cylindrical boss portion 72, for press-fitting therein the rotor shaft 12, and a radially extending disc portion 73 outward from an axial end portion of the boss portion 72, and the plurality of claw-shaped magnetic poles 70a, 70b, 70c are formed, extending axially from the outer peripheral ends of the disk portions 73 , so as to come into engagement with each other. also, the flange portion 71a, 71b is provided at the circumferential end portion of the claw-shaped magnetic pole 70a, 70b, 70c, and the adhesive 60 or an anaerobic adhesive agent is provided between the permanent magnet 40a, 40b and the flange part 71a, 71b or between the permanent magnet 40a, 40b and the side surface of the claw-shaped magnetic pole 70a, 70b, 70c.

Although the disclosure is described above in terms of various exemplary embodiments and implementations, it should be understood that the various features, aspects, and functionality described in one or more of the individual embodiments are not limited in their applicability to the particular embodiment with which they are described, but instead may be applied, alone or in various combinations, to one or more of the embodiments of the disclosure.

It is therefore understood that many modifications which have not been exemplified may be contemplated without departing from the scope of this disclosure. For example, at least one of the constituent components can be modified, added or deleted. At least one of the constituent components mentioned in at least one of the preferred embodiments can be selected, and combined with the constituent components mentioned in another preferred embodiment.

Claims (7)

Rotating electrical machine for a vehicle (1), comprising:
a stator (4); and
a rotor (5) which is oppositely arranged on the inner peripheral side of the stator (4) and which has a pair of rotor cores (13) having a plurality of claw-shaped magnetic poles (70a, 70b, 70c), and permanent magnets (40a, 40b) which are each disposed between two adjacent poles of the plurality of circumferentially adjacent claw-shaped magnetic poles (70a, 70b, 70c), the rotary electric machine for vehicle being characterized in that
the permanent magnets (40a, 40b) are each positioned between two adjacent poles of the plurality of claw-shaped magnetic poles (70a, 70b, 70c) by an adhesive (60) or an anaerobic adhesive agent, and are thus fixed to the poles claw-shaped magnets (70a, 70b, 70c). Rotating electric vehicle machine (1) according to Claim 1, characterized in that
the pair of rotor cores (13) each have a cylindrical boss portion (72), for press-fitting the rotor (12) therein, and a disc portion (73) extending radially outward from the axial end portion of the boss portion (72), and in that
the plurality of claw-shaped magnetic poles (70a, 70b, 70c) are provided, extending axially from the outer peripheral ends of the disc portions (73), so as to engage each other. Rotating electric vehicle machine (1) according to Claim 1 or 2, characterized in that
flange portions (71a, 71b) are each provided at one of the circumferential end portions of the claw-shaped magnetic poles (70a, 70b, 70c), and in that
the adhesive (60) or anaerobic adhesive agent is provided between each of the permanent magnets (40a, 40b) and the flange portions (71a, 71b) or between each of the permanent magnets (40a, 40b) and the side surface from its adjacent claw-shaped magnetic pole (70a, 70b, 70c). Rotating electrical machine for a vehicle (1) according to any one of Claims 1 to 3, characterized in that
an adhesion layer is formed between each of the permanent magnets (40a, 40b) and each of the two adjacent poles of the plurality of claw-shaped magnetic poles (70a, 70b, 70c), and in that
the permanent magnets (40a, 40b) are fixed by reacting the adhesion layers with a hardening acceleration process. Rotating electrical machine for a vehicle (1) according to any one of Claims 1 to 4, characterized in that
a magnet carrier (41) is provided which covers three or more surfaces of each of the permanent magnets (40a, 40b). Rotating electric vehicle machine (1) according to Claim 5, characterized in that
the magnet holder (41) has a projection (43) for positioning each of the permanent magnets (40a, 40b). Rotating electric vehicle machine (1) according to Claim 5 or 6, characterized in that
the magnet holder (41) has holding portions (42) for holding the outer diameter side of each of the permanent magnets (40a, 40b), and in that
the holding parts (42) are each formed on one of the two axial end parts of each of the permanent magnets (40a, 40b).