JP2010207024A - Rotating electrical machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary electric machine that is increased in rotation torque while increasing the space factor of a coil. <P>SOLUTION: The coil 43 of a stator 12 is wound around a coil winding section 44 in such a manner that the center line M of winding may be perpendicular to the axis line L of a rotating shaft 13. In one end in the axis direction of opposing parts 45 on the inner peripheral side of a stator core 41, a wide part 45a is formed that has a radial width wider than that of the other end in the axis direction of the opposing parts 45 on the inner peripheral side. The wide part 45a, as a magnet in the axis direction, is so formed as to face a second magnet 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a rotating electrical machine intended to increase rotational torque.

  2. Description of the Related Art Conventionally, some rotating electrical machines include a stator in which a coil is wound around a tooth portion protruding in the radial direction, and a rotor having a magnet disposed so as to face the tip of the tooth portion in the radial direction. The rotor is rotated by the rotating magnetic field generated in the coil acting on the magnet via the tip of the tooth portion. In such a rotating electrical machine, for example, Patent Document 1 discloses that a rotational torque is increased by effectively using both axial end portions of a stator.

  In the rotating electrical machine of Patent Document 1, both ends of the coil (coil end portions) are bent at right angles to form a U-shape, and the coil end portion is formed by extending the tooth portion in the axial direction. It is wound so as to be locked. The rotor is formed in a U-shape so as to cover the stator, and magnets facing the stator in the radial direction and the axial direction are fixed to the rotor. Thus, since the coil and the magnet are arranged to face each other in the radial direction and the axial direction, the rotational torque can be improved. Further, in the rotating electrical machine as in Patent Document 1, since the coil is bent so as to extend in the radial direction at both axial end portions of the stator, the magnet is simply connected to the stator in the radial direction without bending the coil end portion. In addition, the rotating magnetic field at both ends in the axial direction of the stator can be effectively applied to the magnet as compared with the case where they are arranged so as to face each other in the axial direction.

JP 2005-168245 A

  However, in the rotating electrical machine as in Patent Document 1, the coil must be wound so that the coil end portion is locked to the extension portion of the tooth portion. It was very difficult. Therefore, as a configuration for increasing the rotational torque without deteriorating the assembling property of the coil, a configuration in which the winding center line of the coil is inclined with respect to the axis of the rotating shaft is conceivable. However, in such a configuration, although there is a space for winding the coil on the outer peripheral portion of the stator, the number of coil turns cannot be increased because the space on the inner peripheral portion is narrow. Thus, a dead space is generated in the outer peripheral side portion, and it is difficult to improve the coil occupancy rate.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a rotating electrical machine capable of increasing a rotational torque while improving a coil occupation rate.

  In order to solve the above-mentioned problem, the invention according to claim 1 is provided in a plurality of annularly arranged in parallel around the rotating shaft, and provided on at least one of the coil winding part and the inner peripheral side and the outer peripheral side of the coil winding part. A first core body having a core portion having a facing portion, a coil wound around a coil winding portion of each core portion, and a radial magnet portion facing the facing portion of the core portion in a radial direction And a second core body having an axial magnet section facing the opposing section in the axial direction, and a rotating magnetic field generated in a coil of the first core body is a radial magnet section of the second core body and A rotating electrical machine configured to act on an axial magnet portion so that one of the first core body and the second core body rotates integrally with the rotating shaft, and the coil has a winding center line thereof The coil winding so that is perpendicular to the axis of the rotary shaft A wide portion having a larger radial width than the other axial end portion of the facing portion is formed at one axial end portion of the facing portion of the core portion, and the wide width portion is formed by the axial magnet. It is characterized by being configured to face the part.

  In this invention, since the winding center line of the coil is configured to be orthogonal to the axis of the rotating shaft, the coil is efficiently wound around the outer peripheral portion of the coil winding portion to improve the coil occupancy rate. However, the rotating magnetic field of the coil can be effectively applied to the axial magnet portion by the wide portion of the facing portion, and the rotational torque can be increased. In addition, a complicated process such as bending the axial end of the coil in the radial direction is not necessary, and manufacturing is facilitated. Further, it is not necessary to separately provide an axial coil facing the axial magnet portion, and the configuration can be simplified.

According to a second aspect of the present invention, in the rotating electrical machine according to the first aspect, the coil winding portion and the facing portion of the core portion are configured separately from each other.
In this invention, the coil winding part can be shared, which can contribute to the improvement of manufacturing efficiency. In addition, the shape of the core part can be easily changed simply by changing the facing part attached to the coil winding part. Furthermore, the coil can be easily wound around the coil winding portion.

  According to a third aspect of the present invention, in the rotating electrical machine according to the first or second aspect, the facing surfaces of the facing portion and the radial magnet portion are parallel to each other, and the radial width of the facing portion. Is formed so as to be inclined toward the wide portion side in the axial direction.

  In the present invention, the magnetic flux passing through the opposed portion flows more effectively to the wide portion side (axial magnet portion side), thereby making it possible to further increase the rotational torque. Further, since the opposing areas can be increased without changing the axial length, it is possible to further contribute to an increase in rotational torque.

  According to a fourth aspect of the present invention, in the rotating electrical machine according to any one of the first to third aspects, the first core body is a stator, and the second core body rotates integrally with the rotating shaft. The rotor is configured so that the facing portion of the core portion is formed on an inner peripheral side of the coil winding portion, and an outer periphery different from the facing portion is formed on an outer peripheral side of the coil winding portion. A side facing portion is formed, and the second core body is fixed to the rotary shaft so as to be integrally rotatable, and is supported by the support member and extended to the outer peripheral side of the first core body. The outer peripheral side opposing part of the said core part and the outer peripheral side magnet facing radially are provided.

In this invention, since it can comprise so that a 1st core body may respectively oppose with the magnet of a 2nd core body on an inner peripheral side and an outer peripheral side, it can contribute by the increase in rotational torque.
The invention according to claim 5 is the rotating electrical machine according to claim 4, wherein the support member of the second core body is provided on the wide portion side in the axial direction of the first core body. To do.

In the present invention, since the support member is provided on the wide portion side in the axial direction of the first core body, the degree of freedom in layout of the portion on the opposite side of the first core body is improved.
According to a sixth aspect of the present invention, in the rotating electric machine according to the fifth aspect, the axial magnet portion of the second core body is provided on the support member.

In this invention, since it is not necessary to separately provide a member for supporting the axial magnet portion, an increase in the number of members can be suppressed.
According to a seventh aspect of the present invention, in the rotating electrical machine according to the fifth or sixth aspect, the opposing portion on the inner peripheral side of the core portion and the opposite end portion on the opposite side of the outer peripheral side opposing portion are respectively A connecting portion connected to a fixing member for fixing the first core body to the housing is formed.

  In this invention, since the connection part connected with the fixing member is formed at the opposite end part on the inner peripheral side and the opposite wide part side part of the outer peripheral side opposing part, the first core body is stably fixed. Is possible.

  Therefore, according to the above described invention, it is possible to increase the rotational torque while improving the occupancy rate of the coil.

Sectional drawing of the motor of this embodiment. Sectional drawing of the motor of another example.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
As shown in FIG. 1, a motor 10 as a rotating electrical machine according to this embodiment includes a housing 11, a stator 12 as a first core body housed in the housing 11, and a second core body having a rotation shaft 13. Rotor 14.

  The housing 11 includes a bottomed cylindrical housing main body 21 and an end frame 22 provided at an axial end portion (upper end portion in FIG. 1) of the housing main body 21. The housing body 21 has a circular bottom portion 21a at one axial end portion (lower end portion in FIG. 1) and an opening portion 21b at the other axial end portion, and a first portion is formed at the center of the bottom portion 21a. The bearing 23 is fixed. The end frame 22 is provided so as to close the opening 21 b of the housing body 21, and the housing body 21 and the end frame 22 are fixed by screws 24. A second bearing 25 is fixed to the center portion of the end frame 22, and the first and second bearings 23 and 25 support the rotary shaft 13 of the rotor 14 in a rotatable manner.

  The rotor 14 includes first and second yokes 31 and 32 provided on the rotary shaft 13 so as to be integrally rotatable, a first magnet 33 as a radial magnet portion, a second magnet 34 as an axial magnet portion, A third magnet 35 as an outer peripheral magnet is provided.

  The first yoke 31 has a cylindrical shape, and is fixed to the rotary shaft 13 so that the inner peripheral surface thereof is in contact with the outer peripheral surface of the rotary shaft 13. A cylindrical first magnet 33 is externally fixed to the outer peripheral surface of the first yoke 31. The outer peripheral surface of the first magnet 33 is a facing surface 33a that faces the stator 12 in the radial direction, and is formed in an inclined shape (tapered shape) that increases in diameter toward the upper end in the axial direction in FIG. The first magnet 33 is magnetized so that the N pole and the S pole appear on the opposing surface 33a at equal intervals in the circumferential direction.

  The second yoke 32 has a circular bottom portion 32a and a cylindrical side portion 32b extending in the axial direction from the outer peripheral edge of the bottom portion 32a. A cylindrical portion 32c is formed at the center of the bottom portion 32a, and the rotary shaft 13 is inserted and fixed in a fixed hole 32d on the inner periphery of the cylindrical portion 32c. The cylindrical portion 32c is in contact with one axial end portion (the lower end portion in FIG. 1) of the first yoke 31.

  An annular second magnet 34 facing the stator 12 in the axial direction is fixed to the outer peripheral side of the cylindrical portion 32c in the bottom portion 32a. A facing surface 34 a facing the stator 12 in the second magnet 34 is parallel to a plane orthogonal to the axis L of the rotation shaft 13. The second magnet 34 is magnetized such that the N pole and the S pole appear on the opposing surface 34a at equal intervals in the circumferential direction. The first magnet 33 and the second magnet 34 are opposed to each other at the same position in the circumferential direction. , 34a are configured to be the same.

  A cylindrical third magnet 35 is fixed to the inner peripheral surface of the side portion 32b of the second yoke 32, and the inner peripheral surface of the third magnet 35 is in the radial direction (with the axis L of the rotating shaft 13). It becomes the opposing surface 35a which opposes (perpendicular direction). The third magnet 35 is magnetized so that the N pole and the S pole appear on the opposing surface 35a at equal intervals in the circumferential direction. The first magnet 33 and the third magnet 35 are opposed to each other at the same position in the circumferential direction. The poles of the surfaces 33a and 35a are configured to be opposite to each other. The third magnet 35 is disposed on the outer peripheral side of the first magnet 33, and the substantially annular stator 12 is disposed between the first magnet 33 and the third magnet 35 in the radial direction. ing.

  The stator 12 has a plurality of stator cores 41 (core portions) arranged in an annular shape. Each stator core 41 is indirectly fixed to the housing 11 in a state where the stator cores 41 are arranged at equal intervals in the circumferential direction by a fixing member 42 made of an integrally molded resin material. Each stator core 41 includes a coil winding portion 44 around which coils 43 corresponding to the U, V, and W phases are wound, and an inner peripheral side facing portion formed on the inner peripheral side and the outer peripheral side of the coil winding portion 44. 45 and an outer peripheral side facing portion 46. In addition, the coil winding part 44, the inner peripheral side opposing part 45, and the outer peripheral side opposing part 46 are comprised separately, respectively.

  The coil winding portion 44 of each stator core 41 has a shape extending in the radial direction, and the coil 43 is wound around the coil winding portion 44 in parallel with the axis L of the rotary shaft 13. That is, the winding center line M of the coil 43 is configured to be orthogonal to the axis L of the rotating shaft 13. In such a configuration, as compared to the configuration in which the winding center line M of the coil 43 is inclined with respect to the axis L of the rotating shaft 13 as in the conventional configuration, the empty space on the outer peripheral side portion of the coil winding portion 44. Thus, the coil 43 can be efficiently wound, and the occupancy rate of the coil 43 can be improved. Note that both axial end surfaces of the coil winding portion 44 are parallel to a plane orthogonal to the axis L.

  The one axial end portion (lower end portion in FIG. 1) of the inner peripheral facing portion 45 of each stator core 41 has a wider width in the radial direction than the other axial end portion (upper end portion) of the inner peripheral facing portion 45. A portion 45a is formed. Further, connecting portions 45b and 46a that are connected to the fixing member are formed on the upper ends in the axial direction (ends on the side opposite to the wide portion) of the inner peripheral facing portion 45 and the outer peripheral facing portion 46, respectively.

  A first core-side facing surface 45 c that faces the first magnet 33 is formed on the inner peripheral-side end surface of the inner-side facing portion 45. The first core side facing surface 45c is inclined so that the radial width of the inner circumferential side facing portion 45 increases toward the wide portion 45a in the axial direction, and is parallel to the facing surface 33a of the first magnet 33. Yes. In addition, each end surface in the axial direction of the inner peripheral side facing portion 45 is parallel to a plane orthogonal to the axis L of the rotating shaft 13. The axial end surface (second core side facing surface 45d) of the wide portion 45a faces the second magnet 34 in the axial direction. The second core side facing surface 45d and the facing surface 34a of the second magnet 34 Are configured to be parallel.

  The outer peripheral side facing portion 46 of each stator core 41 is formed with a third core side facing surface 46b facing the third magnet 35 on the outer peripheral side end surface. The third core-side facing surface 46 b is configured to be parallel to the axis L of the rotation shaft 13 and to be parallel to the facing surface 35 a of the third magnet 35. In addition, the outer peripheral side facing part 46 is formed so that the radial widths at both ends in the axial direction are substantially equal to each other.

  The fixing member 42 of the stator 12 is arranged on the side of the stator 12 in the axial direction (on the side opposite to the wide portion). The fixing member 42 is supported by the inner surface of the housing 11 and supports the connecting portions 45 b and 46 a of the inner peripheral side facing portion 45 and the outer peripheral side facing portion 46. When the rotor 14 and the stator 12 are assembled, the stator 12 is first disposed in the second yoke 32 fixed to the rotating shaft 13, and then the first magnet 33 is fixed. The yoke 31 is inserted in the axial direction with respect to the rotary shaft 13 from the lower end side in the axial direction.

  In the motor 10 having such a configuration, when drive currents having phases corresponding to the U, V, and W phases are supplied to the coils 43 of the stator 12, a rotating magnetic field is generated in the coils 43, and the rotor 14 Acting on the first to third magnets 35, the rotor 14 is rotated. At this time, the rotating magnetic field of the coil 43 acts on the first magnet 33 in the radial direction from the first core side facing surface 45c of the inner peripheral side facing portion 45, and the shaft from the second core side facing surface 45d of the wide portion 45a. Acts on the second magnet 34 in the direction. As a result, the rotating magnetic field of the coil 43 effectively acts not only in the radial direction but also in the axial direction, and high rotational torque can be obtained.

  Also, the magnetic flux passing through the inner peripheral side facing portion 45 flows more effectively to the wide portion 45a side due to the inclined shape of the first core side facing surface 45c, thereby causing the rotating magnetic field of the coil 43 to be the second magnet. 34 more efficiently. In addition, the inclined shapes of the first core side facing surface 45c and the facing surface 33a of the first magnet 33 can increase the facing area without changing the axial length, thereby obtaining a higher rotational torque. It is possible.

  Further, on the outer peripheral side of the stator 12, the rotating magnetic field of the coil 43 acts on the third magnet 35 from the third core side facing surface 46 b of the outer peripheral side facing portion 46. Thus, in the motor 10 of this embodiment, since it has the structure which opposes the 1st-3rd magnets 33-35 of the rotor 14 on the inner peripheral side and outer peripheral side of the stator 12, higher rotational torque is obtained. It is possible.

  As described above, in the present embodiment, the winding center line M of the coil 43 is configured to be orthogonal to the axis L of the rotating shaft 13 to improve the occupancy rate of the coil 43, while increasing the rotational torque. It is possible.

Next, characteristic effects of the present embodiment will be described.
(1) In the present embodiment, the coil 43 of the stator 12 is wound around the coil winding portion 44 so that the winding center line M is orthogonal to the axis L of the rotating shaft 13. And the wide part 45a whose radial direction width is larger than the axial direction other end part of this inner peripheral side opposing part 45 is formed in the axial direction one end part of the inner peripheral side opposing part 45 of the stator core 41, and this wide part 45a. Is configured to face the second magnet 34 as an axial magnet portion. For this reason, while the coil 43 is efficiently wound around the outer peripheral portion of the coil winding portion 44 to improve the occupancy rate of the coil 43, the rotating magnetic field of the coil 43 is applied to the wide portion 45a of the inner peripheral facing portion 45. As a result, it is possible to effectively act not only on the first magnet 33 but also on the second magnet 34, and the rotational torque can be increased. Further, a complicated process such as bending the axial end portion of the coil 43 in the radial direction is not necessary, and the manufacturing is facilitated. Furthermore, an axial coil facing the third magnet 35 is not required separately, and the configuration can be simplified.

  (2) In this embodiment, the coil winding portion 44, the inner peripheral facing portion 45, and the outer peripheral facing portion 46 of the stator core 41 are configured separately, so that the coil winding portion 44 can be shared. Thus, it can contribute to the improvement of manufacturing efficiency. In addition, the shape of the stator core 41 can be easily changed simply by changing the inner peripheral side facing portion 45 and the outer peripheral side facing portion 46 attached to the coil winding portion 44 to, for example, different shapes. Furthermore, the coil 43 can be easily wound around the coil winding portion 44.

  (3) In the present embodiment, the facing surfaces 45c and 33a of the inner peripheral facing portion 45 and the first magnet 33 are parallel to each other, and the radial width of the inner peripheral facing portion 45 is wide in the axial direction. A shape that is inclined so as to increase toward the portion 45a side is formed. For this reason, the magnetic flux which passes in the inner peripheral side opposing part 45 comes to flow to the wide part 45a side more effectively, and it becomes possible to increase rotational torque more by this. Further, since the opposing areas can be increased without changing the axial length, it is possible to further contribute to an increase in rotational torque.

  (4) In the present embodiment, an outer peripheral side facing portion 46 (a facing portion that does not face the magnet in the axial direction) different from the inner peripheral side facing portion 45 is formed on the outer peripheral side of the coil winding portion 44, and the rotor 14, the second yoke 32 is fixed to the rotary shaft 13 so as to be integrally rotatable and extends to the outer peripheral side of the stator 12, and is supported by the second yoke 32 to face the outer peripheral side facing portion 46 in the radial direction. A third magnet 35 is provided. For this reason, since it can comprise so that the stator 12 may each oppose with the 1st-3rd magnets 33-35 of the rotor 14 on an inner peripheral side and an outer peripheral side, it can contribute by the increase in rotational torque.

  (5) In the present embodiment, since the second yoke 32 of the rotor 14 is provided on the wide portion 45a side in the axial direction of the stator 12, the degree of freedom in layout of the portion opposite to the wide portion 45a in the axial direction of the stator 12 Will improve.

  (6) In the present embodiment, since the second magnet 34 of the rotor 14 is provided in the second yoke 32, it is not necessary to separately provide a member for supporting the second magnet 34, and an increase in the number of members is suppressed. Is possible.

  (7) In the present embodiment, the stator 12 is fixed to the housing 11 at the opposite end portions (upper end portions in the axial direction) of the inner peripheral side facing portion 45 and the outer peripheral side facing portion 46 of the stator core 41. Since the connecting portions 45b and 46a connected to the fixing member 42 are formed, the stator 12 can be stably fixed.

In addition, you may change embodiment of this invention as follows.
-You may change the said embodiment to a structure as shown, for example in FIG. In the configuration of FIG. 2, the third core side facing surface 46 b of the outer peripheral side facing portion 46 and the facing surface 35 a of the third magnet 35 are the same as the first core side facing surface 45 c of the inner peripheral side facing portion 45 and the first magnet 33. It inclines so that it may become parallel to the opposing surface 33a. Thereby, since an opposing area can be enlarged without changing an axial direction length, it can contribute further to the increase in rotational torque. Further, the connecting portion 46a at the upper end in the axial direction of the outer peripheral side facing portion 46 is formed to have a larger radial width than the lower end in the axial direction due to the inclination of the third core side facing surface 46b. Thereby, as shown in the figure, even when the stator core 41 is configured to be connected to the fixing member 42 only by the connecting portion 46a of the outer peripheral side facing portion 46, the stator 12 can be stably fixed. Thus, it is possible to contribute to an improvement in the degree of freedom in layout on the fixing member 42 side of the stator 12.

  In the above embodiment, the third magnet 35 is configured to face the inner peripheral facing portion 45 in the axial direction. However, a wide portion is formed in the outer peripheral facing portion 46 to widen the outer peripheral facing portion 46. You may comprise so that it may oppose a part and an axial direction.

  In the above-described embodiment, the coil winding portion 44, the inner peripheral facing portion 45, and the outer peripheral facing portion 46 of the stator core 41 are configured separately, but may be configured integrally, for example. Further, the coil winding portion 44 and the outer peripheral facing portion 46 (or the inner peripheral facing portion 45) may be integrated, and only the inner peripheral facing portion 45 (or the outer peripheral facing portion 46) may be configured separately. .

  In the above embodiment, the stator 12 is configured to face the rotor 14 in the radial direction on the inner peripheral side and the outer peripheral side, but may be configured to face only on the inner peripheral side or only on the outer peripheral side. . In this case, you may comprise each stator core 41 integrally.

In the above-described embodiment, the first core side facing surface 45c of the inner circumferential side facing portion 45 has an inclined shape that expands toward the wide portion 45a.
In the above embodiment, the first to third magnets 33 to 35 have an annular shape. However, for example, a plurality of magnets may be arranged in an annular shape.

  In the above embodiment, the first magnet 33 fixed to the cylindrical first yoke 31 is formed in a tapered shape. However, for example, the first yoke 31 is formed in a tapered shape, and the tapered surface has a cross section. A flat plate-like first magnet 33 may be provided.

  In the above embodiment, the first core body (the stator core 41 and the coil 43) is configured as the stator 12, and the second core body (the first and second yokes 31, 32 and the first to third magnets 33 to 35) is configured. Although configured as the rotor 14, the first core body may be configured as a rotor that can rotate integrally with the rotary shaft 13, and the second core body may be configured as a stator.

In each of the above embodiments, the brushless motor has been described as an example. However, for example, a motor with a brush may be used.
In the above embodiment, the present invention is embodied in the motor 10, but other than this, for example, it may be modified to other rotating electric machines such as in a generator.

  DESCRIPTION OF SYMBOLS 10 ... Motor as rotary electric machine, 11 ... Housing, 12 ... Stator as first core body, 13 ... Rotating shaft, 14 ... Rotor as second core body, 32 ... Second yoke as support member, 33 ... Diameter 1st magnet as direction magnet part, 33a ... opposing surface of 1st magnet, 34 ... 2nd magnet as axial direction magnet part, 35 ... 3rd magnet as outer peripheral side magnet, 41 ... stator core as core part, 42 DESCRIPTION OF SYMBOLS ... Fixed member, 43 ... Coil, 44 ... Coil winding part, 45 ... Inner peripheral side opposing part, 45a ... Wide part, 45c ... First core side opposing surface, 45b, 46a ... Connection part, 46 ... Outer peripheral side opposing part , L: axis, M: winding center line.

Claims (7)

A plurality of coils arranged side by side around the rotation axis and having a coil winding portion and a core portion provided on at least one of the inner peripheral side and the outer peripheral side of the coil winding portion, and coil winding of each core portion A first core body having a coil wound around the turning portion;
A second core body having a radial magnet portion opposed to the opposed portion of the core portion in the radial direction, and an axial magnet portion opposed to the opposed portion in the axial direction; and a coil of the first core body The generated rotating magnetic field acts on the radial magnet portion and the axial magnet portion of the second core body so that either the first core body or the second core body rotates integrally with the rotating shaft. A rotating electric machine,
The coil is wound around the coil winding portion such that the winding center line is orthogonal to the axis of the rotating shaft,
A wide portion having a larger radial width than the other axial end portion of the facing portion is formed at one axial end portion of the facing portion of the core portion so that the wide width portion faces the axial magnet portion. A rotating electric machine characterized by being configured. In the rotating electrical machine according to claim 1,
The rotating electrical machine according to claim 1, wherein the coil winding portion and the facing portion of the core portion are configured separately. In the rotating electrical machine according to claim 1 or 2,
The facing surfaces of the facing portion and the radial magnet portion are parallel to each other and have a shape that is inclined so that the radial width of the facing portion increases toward the wide portion in the axial direction. Rotating electric machine. In the rotary electric machine according to any one of claims 1 to 3,
The first core body is a stator;
The second core body is a rotor configured to be rotatable integrally with the rotating shaft,
The opposing part of the core part is formed on the inner peripheral side of the coil winding part, and an outer peripheral side opposing part different from the opposing part is formed on the outer peripheral side of the coil winding part,
The second core body is fixed to the rotating shaft so as to be integrally rotatable and extended to the outer peripheral side of the first core body, and is supported by the support member and opposed to the outer peripheral side of the core portion. A rotating electrical machine comprising a portion and a radially outer magnet facing each other. In the rotating electrical machine according to claim 4,
The rotating electric machine according to claim 1, wherein the support member of the second core body is provided on the wide portion side in the axial direction of the first core body. In the rotating electrical machine according to claim 5,
The rotating electric machine characterized in that the axial magnet portion of the second core body is provided on the support member. In the rotating electrical machine according to claim 5 or 6,
A connecting portion connected to a fixing member for fixing the first core body to the housing is formed at each of the facing portion on the inner peripheral side of the core portion and the opposite wide end portion of the outer peripheral side facing portion. Rotating electric machine characterized by that.

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