JP2010213509A - Horizontal magnetic flux type synchronous machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve the miniaturization and lightening of a device in a horizontal magnetic flux type synchronous machine. <P>SOLUTION: The horizontal magnetic flux type synchronous machine consists of armatures including: a plurality of armature cores being arrayed in the fixed direction while forming a plurality of pole teeth in the direction orthogonal in the direction of arrays; and armature windings laid so as to cross each armature core and a field system including a plurality of permanent magnets arrayed in the direction of the arrays and the orthogonal direction so as to be opposed to each pole tooth on a field core. Herein, the permanent magnets 3a, 3b and 3c are supported by members consisting of a non-magnetic material. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a transverse flux type synchronous machine represented by a transverse flux type synchronous motor, a transverse flux type synchronous generator, and the like.

  The following URL (Uniform Resource Locator) shown as Non-Patent Document 1 discloses a paper “Design of Tranverse Flux Machine” on the theme of a method of designing a “Tranverse Flux” type device. Further, the following URL shown as Non-Patent Document 2 discloses a synchronous generator as an example of such a “Tranverse Flux” type synchronous machine. Furthermore, the following international publication shown as Patent Document 1 discloses an improved invention “ROTATING TRANSVERSE FLUX MACHINE” of an apparatus of the “Tranverse Flux” type. Furthermore, regarding the “Tranverse Flux” type device, many inventions are disclosed as international publications. In the following description, a “Tranverse Flux” type device is referred to as a transverse flux type synchronous machine.

  FIG. As specified in Fig. 1, in a general synchronous machine (vertical synchronous machine), the relative movement direction of the stator and the moving element (rotor in the case of a rotating machine) and the stator winding (armature winding) ) Is perpendicular to the direction of the current that flows in the transverse magnetic flux type synchronous machine, whereas the relative movement direction of the stator and the mover and the direction of the current that flows in the stator winding are set in parallel. It is characterized by. More specifically, FIG. 1 or Non-Patent Document 2 FIG. As shown in FIG. 1, the transverse magnetic flux type synchronous machine is arranged so as to surround the circumferential surface of the rotor, and has a plurality of stator cores having a pair of pole teeth in a direction perpendicular to the arrangement direction, A stator winding provided so as to extend in a direction in which the stator cores are arranged between the pair of pole teeth of the stator core, that is, across a plurality of stator cores in the circumferential direction of the rotor Yes.

In such a transverse magnetic flux type synchronous machine, the magnetic flux generated by the armature current flowing through the stator winding is one pole tooth of the stator core → one permanent magnet provided on the surface of the rotor → It flows from the rotor core provided between the permanent magnet and the rotating shaft of the rotor → the other permanent magnet provided on the surface of the rotor → the other pole tooth of the stator core. By forming the magnetic path in this way, rotational torque acts on the rotor in the case of a synchronous motor, and AC power is generated in the stator winding in the case of a synchronous generator.
That is, in the transverse magnetic flux type synchronous machine, the magnetic flux flows in the transverse direction with respect to the rotational direction in the rotor.

International Publication No. 2006/052173 Pamphlet

http://www.ansoft.com/news/articles/Design of Tranverse Flux Machine.pdf http://www.ee.kth.se/php/modules/publications/reports/2006/IR-EE-EME 2006 008.pdf

  By the way, in the conventional transverse magnetic flux type synchronous machine, the magnetic path is formed by the stator core, the rotor core and the pair of permanent magnets as described above, but the efficiency is improved due to the leakage magnetic flux between the permanent magnets. Therefore, in order to obtain a desired output, there is a problem that the apparatus becomes large and heavy.

In addition, in the conventional transverse flux type synchronous machine, the stator winding is provided so as to straddle the plurality of stator cores, and the thickness of the stator core and the rotor core is sufficiently increased in order to reduce the magnetic resistance as much as possible. It is necessary to secure it. That is, in the conventional transverse flux type synchronous machine, since the stator core and the rotor core need to have sufficient thickness in the rotational radius direction, the stator and the rotor are thickened in the rotational radius direction. There was a problem of increasing the size and weight.
In the case of a relatively small transverse flux type synchronous machine, the thickness of the stator core and the rotor core does not greatly affect the weight of the apparatus. However, as in the synchronous generator disclosed in Non-Patent Document 2, the When a transverse flux type synchronous machine is applied to a large synchronous generator for a power plant to be driven, a small increase in the thickness of the stator core and the rotor core results in a significant increase in the weight of the stator. Reducing the thickness of the stator and rotor by reducing the thickness of the core and rotor core is an extremely important technical issue, particularly in the case of a large-scale transverse flux synchronous machine.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to realize a reduction in size and weight of a device in a transverse flux type synchronous machine.

  In order to achieve the above object, in the present invention, as a first solving means, a plurality of armature cores arranged in a predetermined direction and having a plurality of pole teeth formed in a direction orthogonal to the direction of the arrangement, and the respective An armature having armature windings laid so as to straddle the armature core, and a plurality of permanent magnets arranged in the direction of arrangement and in a direction orthogonal to the pole teeth on the field core A transverse magnetic flux type synchronous machine comprising a field magnet is employed, wherein the permanent magnet is supported by a member made of a non-magnetic material.

  As a second solution, in the first means, the armature cores are arranged so as to have a displacement of a predetermined dimension alternately in a direction orthogonal to each other, and the permanent magnets are arranged according to the displacement. The means of arranging in the direction of arrangement and the direction orthogonal to each pole tooth is adopted.

  As a third solution, in the first or second means, the field is a rotor in which a plurality of permanent magnets are supported in an annular shape by a magnet support made of a nonmagnetic material. adopt.

  As a fourth solving means, in the third means, a second rotor provided coaxially and annularly with respect to the rotor is provided, the rotor is supported by the first rotating shaft, and the second rotor is provided. The rotor is supported by a second rotating shaft different from the first rotating shaft.

  As a fifth solving means, in any one of the first to fourth means, a means is adopted in which the nonmagnetic material is a fiber reinforced plastic.

  As a sixth solving means, in any one of the first to fifth means, a synchronous motor that moves the field core by applying a thrust to the armature winding when an armature current is passed through the armature winding. Is adopted.

  As a seventh solving means, in any one of the first to fifth means, a synchronous generator that outputs an electromotive force generated in the armature winding by applying a driving force to the field core to the outside. Adopt the means.

  According to the present invention, since the permanent magnet is supported by a member made of a non-magnetic material, compared to a structure in which the permanent magnet is supported by an armature core or a field core, that is, a member made of a magnetic material, It is possible to reduce the leakage magnetic flux. Therefore, it is possible to prevent a decrease in efficiency due to leakage magnetic flux, and as a result, the stator core and the device can be reduced in size and weight.

1 is a perspective view showing a main configuration of a transverse magnetic flux type three-phase synchronous motor A according to a first embodiment of the present invention. FIG. 3 is a plan view showing a positional relationship between a second stator 6A and a permanent magnet 3a in the transverse magnetic flux type three-phase synchronous motor A according to the first embodiment of the present invention. FIG. 6 is a plan view showing a modification of the positional relationship between the second stator 6A and the permanent magnet 3a in the transverse magnetic flux type three-phase synchronous motor A according to the first embodiment of the present invention. It is sectional drawing which shows the principal part structure of the transverse magnetic flux type three-phase synchronous motor B which concerns on 2nd Embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 is a cross-sectional view showing a main configuration of a transverse magnetic flux type three-phase synchronous motor A according to the first embodiment. The feature of this three-phase synchronous motor A is that a permanent magnet forming a field is supported not by a magnetic material but by a nonmagnetic material as will be described below. In FIG. 1, only one side cross section of the rotating shaft is shown for ease of explanation.

  As shown in FIG. 1, the three-phase synchronous motor A includes a casing 1, an output shaft 2, a rotor 3, a rotor support 4, first stators 5A to 5C, and second stators 6A to 6C. A stator support 7 and bearings 8A to 8C are provided. The casing 1 is a hollow and bottomed cylindrical member made of a nonmagnetic material, and a round hole 1a is formed at the center of the left bottom portion. The output shaft 2 is a round bar-like member having a flange portion 2a formed at an intermediate portion thereof, and is freely rotatable via a bearing 8A in the round hole 1a of the casing 1 and via a bearing 8B. It is supported by.

  The rotor 3 functions as a field, and is composed of a three-phase permanent magnet 3a and a magnet support 3b that supports the permanent magnet 3a. Since FIG. 1 is a sectional view, a total of six permanent magnets 3a (two for each phase) are shown. The permanent magnet 3a is centered on the rotation direction of the rotor 3, that is, the axis of the output shaft 2. A plurality are provided at regular intervals in the circumferential direction of the concentric circles, forming six annular rows as a whole.

  The magnet support 3b is made of a nonmagnetic material, and is provided so as to fill in the gaps between the permanent magnets 3a arranged in six rows as described above, and supports the permanent magnet 3a. Such a magnet support 3b may be anything as long as it is a non-magnetic material and can support the permanent magnet 3a with sufficient strength. For example, the magnet support 3b is made of fiber reinforced plastics (FRP). The plurality of permanent magnets 3a in each row are supported with sufficient strength.

  That is, the rotor 3 is formed by filling the gaps between the plurality of permanent magnets 3a arranged in six annular rows with the magnet support 3b, and has a cylindrical shape as a whole. Yes. Like the permanent magnet 3a, the rotor 3 has one of the permanent magnets 3a between the first stators 5A to 5C and the second stators 6A to 6C arranged in an annular shape. The surface faces the first stators 5A to 5C with a minute gap, and the other surface of each permanent magnet 3a faces the pole teeth 6a1 of the second stators 6A to 6C with a minute gap. The left end is supported by the flange portion 2a, and the right end is supported by the rotor support 4.

  The rotor support 4 is a disk-shaped member, and one end supports the right end of the rotor 3 and the other end is supported by the stator support 7 via a bearing 8C. The stator support 7 is a substantially cylindrical member provided inside the casing 1 so that the central axis is coaxial with the rotation axis of the output shaft 2, and directly supports the second stators 6A to 6C. The output shaft 2 is supported via the bearing 8B, and the rotor support 4 is supported via the bearing 8C. That is, the output shaft 2, the rotor 3, and the rotor support 4 described above are supported by the casing 1 and the stator support 7 so as to be rotatable as a unit.

  As shown in the figure, the first stators 5A to 5C are made of a magnetic material having a U-shaped cross section and a high magnetic permeability, and are provided in three rows corresponding to the three phases inside the casing 1. . As shown in the figure, the end portions of the first stators 5A to 5C are opposed to the permanent magnet 3a with a minute gap therebetween.

  The second stators 6A to 6C function as armatures, and are provided in three rows corresponding to the three phases in the same manner as the rotor 3 and the first stators 5A to 5C. It is supported on the casing 1 via the body 7. Each of the second stators 6A to 6C includes a stator core 6a having a U-shaped cross section and a high magnetic permeability, and a stator winding 6b disposed inside the stator core 6a. Consists of.

  The stator core 6a has a “U” shape, and both parallel end portions form a pair of pole teeth 6a1. Of the bearings 8A to 8C, the bearing 8A supports the output shaft 2 so as to be rotatable with respect to the casing 1, and the bearing 8B supports the output shaft 2 so as to be rotatable with respect to the stator support body 7. 8C supports the rotor support body 4 rotatably with respect to the stator support body 7.

  Here, since FIG. 1 is a sectional view, it is not clearly shown, but the second stators 6A to 6C are provided with a predetermined number (that is, a predetermined number of stations) on the surface of the substantially cylindrical stator support 7 and in the circumferential direction. It has been. Similarly to the second stators 6A to 6C, the first stators 5A to 5C are also provided in a predetermined number (predetermined number of stations) on the inner surface of the cylindrical casing 1 and in the circumferential direction. The number of stations is, for example, 64 poles.

  FIG. 2 shows one phase out of the positional relationship between the first and second stators 5A to 5C and 6A to 6C and the permanent magnet 3a of each phase in the three-phase synchronous motor A as described above. It is a top view which shows the positional relationship of 1st, 2nd stator 5A, 6A and the permanent magnet 3a as a representative. The positional relationship between the other phases (not shown), that is, the first and second stators 5B, 5C, 6B, and 6C and the permanent magnet 3a of each phase is exactly the same as the positional relationship shown in FIG.

  In FIG. 2, since the first stator 5A and the second stator 6A have the same positional relationship in the facing direction of the permanent magnet 3a, the display of the first stator 5A is omitted. In addition, the size of the pole teeth 6a1 is drawn to be slightly larger than the size of the permanent magnet 3a, but the sizes of both may be exactly the same.

  As shown in FIG. 2, in the three-phase synchronous motor A, each second stator 6A is arranged in a line with respect to the rotation direction of the rotor 3 indicated by an arrow. Further, in each second stator 6A, the pair of pole teeth 6a1 juxtaposed in the direction orthogonal to the rotation direction of the rotor 3 is a position facing the permanent magnets 3a arranged in two rows in the rotation direction of the rotor 3. Become a relationship. Further, the permanent magnet 3a has different polarities alternately in the rotation direction of the rotor 3, and the two pole teeth 6a1 of the second stator 6A are different in the direction orthogonal to the rotation direction of the rotor 3. It arrange | positions so that it may oppose with polarity, ie, it may become a different polarity. Note that the arrangement pitch of the second stators 6A in the rotation direction of the rotor 3 is set to double the arrangement pitch of the permanent magnets 3a as shown in the figure.

  FIG. 3 is a plan view showing a modification of the arrangement relationship of FIG. FIG. 3 shows the positional relationship between the second stator 6A1 corresponding to the second stator 6A and the permanent magnet 3a1 corresponding to the permanent magnet 3a, corresponding to FIG. The second stators 6B1 and C1 corresponding to the stators 6B and 6C are exactly the same in the arrangement relationship between the second stator 6A1 and the permanent magnet 3a1 shown in FIG.

  The permanent magnet 3a1 in this modification has an area about half that of the permanent magnet 3a, and is arranged in two rows in the rotational direction of the rotor 3 and on both sides of the stator winding 2b. The permanent magnets 3a1 on each side of the stator winding 2b are arranged so as to have different polarities alternately in the rotation direction of the rotor 3 and different polarities in the direction orthogonal to the rotation direction of the rotor 3. Has been. Further, the permanent magnet 3a1 is disposed between the sides of the stator winding 2b so that the two pole teeth 6a2 of the second stator 6A1 face different polarities.

  Further, in this modification, the second stator 6A1 having the pole teeth 6a2 whose area is about half that of the pole teeth 6a1 is arranged in the rotation direction of the rotor 3 at the same pitch as the arrangement pitch of the permanent magnets 3a1. . In addition, the plurality of second stators 6A1 are arranged such that the rotor teeth 3A1 are adjacent to each other so that the pole teeth 6a2 are opposed to the permanent magnets 3a1 adjacent to each other in the direction orthogonal to the rotation direction of the rotor 3. These are arranged so as to have displacement alternately by a predetermined dimension in a direction perpendicular to the rotation direction.

  The arrangement of the second stator 6A1 and the permanent magnet 3a1 according to such a modification is the feature of the invention according to Japanese Patent Application No. 2008-093219 (filed on Mar. 31, 2008) which is the prior application of the present applicant. However, according to such a modification, the second stator 6A1 is thinner than the second stator 6A of FIG. 2 when realizing substantially the same torque in comparison with the arrangement of FIG. Therefore, the device (electric motor) can be downsized as a whole.

  In the synchronous generator A configured as described above, when a three-phase driving current whose phases are different from each other by 120 ° is applied to the stator windings 6b, 6b, and 6b of the respective phases, a rotational torque is generated in the rotor 3. As a result, the output shaft 2 rotates. That is, in the case of the positional relationship between the second stator 6A and the permanent magnet 3a shown in FIG. 2, the drive current is applied to the pole teeth 6a1 of the second stator 6A adjacent in the extending direction of the stator winding 6b. According to the phase change, magnetic poles having different polarities are sequentially generated. As a result, an attractive force and a repulsive force are generated between the pole teeth 6a1 of the second stator 6A and the permanent magnet 3a. 2 rotates in a predetermined direction in synchronization with the phase change of the drive current.

  In the case of the positional relationship between the second stator 5A1 and the permanent magnet 3a1 shown in FIG. 3, it is driven by the pole teeth 6a2 of the second stator 6A1 adjacent in the extending direction of the stator winding 6b. Magnetic poles having different polarities are sequentially generated according to the phase change of the current, and as a result, an attractive force and a repulsive force are generated between the pole teeth 6a2 of the second stator 6A1 and the permanent magnet 3a. Then, the rotor 3 and the output shaft 2 rotate in a predetermined direction in synchronization with the phase change of the drive current due to the attractive force and the repulsive force.

  Here, the magnetic flux flowing between the second stator 6A1 and the permanent magnet 3a1 in the positional relationship shown in FIG. 3 has the positional relationship shown in FIG. 2 when the same rotational torque is generated. Since the magnetic flux flowing between the second stator 6A and the permanent magnet 3a can be halved, the second stator 6A1 can be made thinner (smaller section) than the second stator 6A. it can.

  According to the three-phase synchronous motor A according to the first embodiment, the permanent magnets 3a and 3a1 constituting the rotor 3 are rotatably supported via the magnet support 3b made of a nonmagnetic material. In comparison with the case where it is rotatably supported via a magnetic material, the magnetic flux of each permanent magnet 3a, 3a1 is the first stator 5A-5C (5A1-5C1) and the second stator 6A-6C (6A1). ~ 6C1) more flows. When each permanent magnet 3a, 3a1 is rotatably supported via a magnetic material, a part of the magnetic flux of each permanent magnet 3a, 3a1 flows into the magnetic material. Magnetic flux flowing into (5A1 to 5C1) and the second stators 6A to 6C (6A1 to 6C1) is reduced.

  Therefore, according to this three-phase synchronous motor A, since the loss of magnetic flux of each permanent magnet 3a, 3a1 is less than that in the case where it is rotatably supported via a magnetic material, when trying to achieve the same efficiency, The rotor 3, the first stators 5A to 5C (5A1 to 5C1), and the second stators 6A to 6C (6A1 to 6C1) can be made smaller, thereby reducing the size of the apparatus.

[Second Embodiment]
Next, FIG. 4 is a cross-sectional view showing a main configuration of a transverse magnetic flux type three-phase synchronous motor B according to the second embodiment. The feature of this three-phase synchronous motor B is that, like the three-phase synchronous motor A described above, a permanent magnet is supported by a nonmagnetic material and has two output shafts. In FIG. 4, only one side cross section of the rotating shaft is shown for ease of explanation.

  As shown in FIG. 4, the three-phase synchronous motor B includes a casing 10, a first output shaft 11A, a second output shaft 11B, a first rotor 12, second rotors 13A to 13C, a third Rotor 14, stators 15 </ b> A to 15 </ b> C, a first rotor support 16 </ b> A, a second rotor support 16 </ b> B, and five bearings 17 </ b> A to 17 </ b> F. The casing 10 is a hollow and bottomed cylindrical member, and round holes 10a and 10b are respectively formed at the centers of the left and right bottom portions.

  The first output shaft 11A corresponds to the first rotation shaft, and is a substantially round bar-like member provided with a flange portion 11a. The first output shaft 11A is rotatable on the casing 10 via a bearing 17A, on the first rotor support 16A via a bearing 17B, and on the second output shaft 11B via a bearing 17C. Are supported by each. The second output shaft 11B corresponds to the second rotation shaft, and is a substantially round bar-like member provided with a flange portion 11b. The second output shaft 11B is rotatable to the first output shaft 11A via a bearing 17C, to the second rotor support 16B via a bearing 17D, and to the casing 10 via a bearing 17F. Are supported by each. The first and second output shafts 11A and 11B are provided at the respective end portions of the casing 10 so as to have the same rotation center.

  The first rotor 12 is a cylindrical member constituted by a permanent magnet 12a for three phases and a permanent magnet support 12b made of a nonmagnetic material while supporting the permanent magnet 12a. The first rotor 12 is opposed to the second rotors 13A to 13C and the third rotor 14 with a small gap therebetween, the left end is the flange portion 11a, and the right end is the second. Are respectively supported by the rotor support 16B. The magnet support 12b is, for example, fiber reinforced plastics (FRP).

  The second rotors 13A to 13C are made of a magnetic material having a U-shaped cross section and a high magnetic permeability as shown in the figure, and are provided in an annular shape on the peripheral surface of the second output shaft 11B corresponding to three phases. It has been. As shown in the figure, the end portions of the second rotors 13A to 13C are opposed to the permanent magnet 12a with a minute gap therebetween.

  The third rotor 14 includes a three-phase rotor core 14a made of a magnetic material having a high magnetic permeability, and a rotor core support 14b made of a nonmagnetic material while supporting the rotor core 12a. A cylindrical member. The third rotor 14 opposes the first rotor 12 and the stators 15A to 15C with a small gap therebetween, the left end is the first rotor support 16A, and the right end is the flange. It is supported by each part 11B. The rotor core support 14b is, for example, a fiber reinforced plastic, like the permanent magnet support 12b.

  The stators 15 </ b> A to 15 </ b> C are provided in three rows inside the casing 10 corresponding to the three phases, similarly to the first to third rotors 12, 13 </ b> A to 13 </ b> C and 14. Each of the stators 15A to 15C includes a stator core 15a made of a magnetic material having a U-shaped cross section and a high magnetic permeability, and a stator winding 15b disposed in a hollow portion inside the stator core 15a. It consists of. The first rotor support 16A is a disk-like member provided inside the casing 10 so that the central axis is coaxial with the axis of the first and second output shafts 11A and 11B. The rotor 14 is supported at one end (left end) and rotatably supported by the first output shaft 11A via a bearing 17B.

  The second rotor support 16B is a disk-like member provided inside the casing 10 so that the central axis is coaxial with the rotation axes of the first and second output shafts 11A and 11B. The rotor 12 is supported at one end (right end) and rotatably supported by the second output shaft 11B via a bearing 17D. Of the bearings 17A to 17F, the bearing 17A supports the first output shaft 11A rotatably with respect to the casing 10, and the bearing 17B supports the first rotor support 16A with respect to the first output shaft 11A. The bearing 17C rotatably supports the first output shaft 11A and the second output shaft 11B, and the bearing 17D supports the second rotor support 16B in the second direction. The output shaft 11B is rotatably supported, and the bearing 17F rotatably supports the second output shaft 11B with respect to the casing 10.

  In such a three-phase synchronous motor B according to the second embodiment, when three-phase drive currents having phases different from each other by 120 ° are applied to the stator windings 15b, 15b, 15b of the respective phases, The third rotor 14 (second rotors 13A to 13C) generates torques that are opposite to each other, so the first output shaft 11A and the second output shaft 11B rotate in opposite directions. Thus, the counter-rotating type three-phase synchronous motor B can be applied to a hybrid motor drive motor, a ship counter-rotating propeller driving motor, a wind power counter-rotating generator, and the like.

  Further, according to the three-phase synchronous motor B, each permanent magnet 12a constituting the first rotor 12 is rotatably supported via the magnet support 12b made of a nonmagnetic material. In comparison with a case where the permanent magnet 12a is rotatably supported through the magnetic flux, the magnetic flux of each permanent magnet 12a flows more into the second rotors 13A to 13C and the third rotor 14. Therefore, according to the three-phase synchronous motor B, the loss of magnetic flux of each permanent magnet 12a is less than that in the case where the permanent magnet 12a is rotatably supported via a magnetic material. The rotor 12, the second rotors 13A to 13C, the third rotor 14 and the stators 15A to 15C can be made smaller, thereby reducing the size of the apparatus.

  Further, since FIG. 4 is a cross-sectional view and is not clearly shown, the three-phase synchronous motor B also has a feature point regarding the arrangement relationship between the stator and the rotor shown in FIGS. Therefore, when the arrangement relationship as shown in FIG. 3 is adopted, it is possible to downsize (thinner) the stator and the rotor to reduce the apparatus configuration.

The present invention is not limited to the above-described embodiments, and for example, the following modifications can be considered.
(1) In the first embodiment, the first stators 5A to 5C are provided on the inner peripheral surface of the casing 1, and the second stators 6A to 6C functioning as armatures are provided on the peripheral surface of the stator support 7. Although provided, the positional relationship between the first stators 5A to 5C and the second stators 6A to 6C may be reversed. Similarly, in the second embodiment, the positional relationship between the second rotors 13A to 13C and the stators 15A to 15C may be reversed.

(2) In the above embodiments, the three-phase synchronous motors A and B have been described, but the present invention is not limited to this. The present invention is also applicable to a three-phase synchronous generator or a synchronous motor and a synchronous generator having a phase configuration other than three phases. In each of the above embodiments, the number of poles of the rotor 1 is 64. However, the number of poles is merely an example, and other station numbers may be used.

(3) The second embodiment relates to the counter-rotating three-phase synchronous motor B. In the configuration of the three-phase synchronous motor B, one output shaft is used as an input shaft driven by external power. Thus, a rotating electrical machine for power conversion may be used. For example, Japanese Patent Application Laid-Open No. 2008-245484 discloses an invention related to a rotating electrical machine for power conversion, but the present invention can be applied to this rotating electrical machine for power conversion.

(4) In each of the above embodiments, three-phase driving is performed by applying three-phase driving currents whose phases are different from each other by 120 ° to the stator windings 6b, 6b, 6b of each phase or the stator windings 15b, 15b, 15b. However, the armature and the field constituting each phase are shifted relative to each other by an electrical angle of 120 ° around the axis of the casing 1, and the stator winding of each phase is Three-phase driving can also be realized by supplying three-phase driving currents having phases different from each other by 120 ° to 6b, 6b, 6b or stator windings 15b, 15b, 15b.

  A ... three-phase synchronous motor, 1 ... casing, 2 ... output shaft, 3 ... rotor, 4 ... rotor support, 5A-5C ... first stator, 6A-6C ... second stator, 7 ... Stator support, 8A to 8C ... bearing, B ... three-phase synchronous motor, 10 ... casing, 11A ... first output shaft, 11B ... second output shaft, 12 ... first rotor, 13A-13C ... 2nd rotor, 14 ... 3rd rotor, 15A-15C ... Stator, 16A ... 1st rotor support body, 16B ... 2nd rotor support body, 17A-17F ... Bearing

Claims (7)

An armature provided with a plurality of armature cores arranged in a predetermined direction and having a plurality of pole teeth formed in a direction orthogonal to the direction of the arrangement, and armature windings laid so as to straddle the armature cores And a field magnet comprising a plurality of permanent magnets arranged in the direction of the arrangement and the orthogonal direction so as to face the pole teeth on the field core, and a transverse flux type synchronous machine comprising:
The permanent magnet is supported by a member made of a non-magnetic material. Each of the armature cores is arranged so as to have a displacement of a predetermined dimension alternately in the orthogonal direction,
2. The transverse magnetic flux type synchronization according to claim 1, wherein the permanent magnets are arranged in the arrangement direction and the orthogonal direction so as to face the pole teeth of the armature cores according to the displacement. Machine.   The transverse magnetic flux type synchronous machine according to claim 1 or 2, wherein the field magnet is a rotor in which a plurality of permanent magnets are supported in an annular shape by a magnet support made of a nonmagnetic material.   A second rotor provided coaxially and annularly with respect to the rotor; wherein the rotor is supported by a first rotating shaft; and the second rotor is coupled to the first rotating shaft. 4. The transverse magnetic flux type synchronous machine according to claim 3, wherein the two are supported by different second rotating shafts.   The transverse magnetic flux type synchronous machine according to any one of claims 1 to 4, wherein the nonmagnetic material is a fiber reinforced plastic.   The transverse magnetic flux according to any one of claims 1 to 5, wherein the transverse magnetic flux is a synchronous motor that moves by causing a thrust to act on the field core when an armature current is passed through the armature winding. Type synchronous machine.   The synchronous generator according to any one of claims 1 to 5, wherein the generator is a synchronous generator that outputs an electromotive force generated in the armature winding by applying a driving force to the field core. Transverse magnetic flux type synchronous machine.

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