JP2014180076A - Rotary electric machine and vehicle power device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary electric machine and a vehicle power device in which magnetic coupling is improved so as to enable size reduction compared with hitherto, allowing a higher torque for the same size.SOLUTION: A rotary electric machine 10A (10) comprises: an armature stator 11; a first field rotor 14a; a modulator inductor 13 which is interposed between the armature stator 11 and the first field rotor 14a; and a second field rotor 12a which is interposed between the armature stator 11 and the modulator inductor 13, and is provided with a magnet 12m having the same number of pole pairs as the armature stator 11. With this constitution, magnetic resistance on the second field rotor 12a side viewed from the armature stator 11 decreases to increase magnetic coupling. Magnetic fluxes generated by the armature stator 11 and the second field rotor 12a are merged so that the rotation force (torque) of the modulator inductor 13 or the first field rotor 14a increases. Thus, the size can be reduced compared with hitherto, allowing a higher torque for the same size.

Description

  The present invention relates to a rotating electric machine having an armature stator, a field rotor, and a modulator inductor, and a vehicle power unit including the rotating electric machine.

  Until now, a mechanical planetary gear has been used as a power conversion device including an axle for driving a vehicle, an engine, and a transmission disposed therebetween. Instead of this mechanical planetary gear, an example of a technique related to an electric motor that is connected to an engine and an axle system and includes a first rotor, a second rotor, and an armature stator is disclosed (see, for example, Patent Document 1). . The electric motor includes a plurality of stator cores respectively opposed to the plurality of magnetic substance rows, and the plurality of stator cores are juxtaposed with a predetermined gap in the axial direction, and a common coil is wound thereon. According to this configuration, since there is no mechanical planetary gear, there is an advantage that it is not necessary to circulate oil. In addition, there is also an advantage that the shift efficiency is good particularly in a light load region.

JP 2010-017032 A

  However, in the technique of Patent Document 1, in order to operate the magnetic planetary gear (differential gear), the number of pole pairs is different between the armature stator and the rotor, and no excitation source is provided between them. A simple iron core piece is interposed. That is, since the effective magnetic flux generated with respect to the magnetomotive force of the armature stator is smaller than that of a general synchronous motor, the torque (driving force) is small compared to the physique. Conversely, to obtain a desired torque, the body size must be increased. In other words, it is a motor with a low power factor, and there is a problem that it is difficult to apply as a power conversion device for automobiles that are small and require high torque.

  The inventors have realized that the above-mentioned problems are caused by the fact that the power factor is bad (more specifically, the magnetic flux serving as torque is less than the excitation magnetomotive force of the armature stator). . The reason why the magnetic flux is small is that the magnetic resistance on the counter magnetic circuit side as viewed from the armature stator is high and that there is a large amount of leakage magnetic flux generated along with the magnetic resistance. That is, the weak magnetic coupling has an influence.

  The present invention has been made in view of the above points, and provides a rotating electrical machine and a vehicle power device that can increase the magnetic coupling, can be made smaller than before, and can increase the torque with the same physique. With the goal.

  A first invention made to solve the above-described problem is that in the rotating electrical machine (10, 10A, 10B), the armature stator (11), the first field rotor (14, 14a, 14b), A modulator inductor (13) interposed between the armature stator and the first field rotor; and the armature stator interposed between the armature stator and the modulator inductor; And a second field rotor (12, 12a, 12b) having a magnet (12m) having the same number of pole pairs.

  According to this configuration, since the second field rotor is configured with the same number of pole pairs as the armature stator, the magnetic resistance on the second field rotor side viewed from the armature stator is reduced. Lowering the magnetic resistance reduces leakage flux and increases magnetic coupling. Magnetic fluxes generated by the armature stator and the second field rotor are combined to increase the rotational force (torque) of the modulator inductor and the first field rotor. Therefore, it can be made smaller than before, and torque can be increased with the same physique.

  According to a second aspect of the present invention, there is provided a vehicular power plant (100, 200, 300, 400), wherein the rotating electrical machine (10, 10A, 10B) according to any one of claims 1 to 3 and a change in the rotating electrical machine. A first rotor (R1) that connects a tone inductor (13) or first field rotor (14, 14a, 14b) and an output shaft (R3) of the engine (20), and the first field magnet A second rotor (R2) coupled to the rotor, and an armature stator (11) of the rotating electrical machine, connected to the second field rotor, the modulator inductor, and the first field rotor. And a rotation control device (30) for controlling one or more rotations.

  According to this configuration, it is possible to provide a vehicular power unit having a rotating electrical machine that can be made smaller than conventional ones and that can increase torque if it has the same physique.

  According to a third aspect of the present invention, in the vehicle power unit (200), the first rotating electrical machine (10, 10A, 10B), which is the rotating electrical machine according to any one of claims 1 to 3, and the first rotating electrical machine. And a second rotating electric machine (60) having an armature stator (61) and a field rotor (62), and a modulator inductor (13) of the first rotating electric machine. Alternatively, a first rotor (R1) that connects the first field rotor (14, 14a, 14b) and the output shaft (R3) of the engine (20), and a field rotor of the second rotating electrical machine, The second rotating body (R2) to be connected, and one or both of the armature stator of the first rotating electrical machine and the armature stator of the second rotating electrical machine, and the second field rotor, the variable A tone inductor, which controls one or more rotations of the first field rotor And having a rotation control unit (30).

  According to this configuration, the vehicular power unit including the first rotating electric machine and the second rotating electric machine can be made smaller than before, and the torque can be increased with the same physique.

  4th invention is arrange | positioned along with an axial direction (AX) in the vehicle power unit (300), The several rotary electric machine (10, 10A, 10B) as described in any one of Claim 1 to 3 , A first rotating body that connects the modulator inductor (13) or the first field rotor (14, 14a, 14b) of the one rotating electric machine and the output shaft (R3) of the engine (20). (R1) and a second rotator (R2) connected to the other modulator inductor or the other first field rotator excluding the one modulator inductor or the first field rotator. ) And one or more of the second field rotor, the modulator inductor, and the first field rotor connected to an armature stator (11) included in one or more of the rotating electric machines. And a rotation control device (30) for controlling the rotation.

  According to this configuration, a vehicle power device including a plurality of rotating electrical machines arranged side by side in the axial direction can be made smaller than before, and torque can be increased with the same physique.

  5th invention is arranged side by side in the crossing direction (crossing direction DC) which cross | intersects an axial direction (AX) in the vehicle power unit (400), A plurality of these are described in any one of Claims 1-3. A rotating electrical machine (10, 10A, 10B), a modulator inductor (13) or one first field rotor (14, 14a, 14b) of one rotating electrical machine, and an output shaft ( R3) is connected to the first rotor (R1) and the other modulator inductor or the other first field rotor except the one modulator inductor or the first field rotor. A second rotating body (R2) coupled to the plurality of rotating electric machines, a coupling portion (C1) coupling the first field rotor and the modulator inductor to each other, and the one or more of the rotating electric machines. Connected to the armature stator (11) included in the rotating electrical machine, the second field rotor, Tone inductor, and having a rotation control unit (30) for controlling the rotation of one or more among the first field rotor.

  According to this configuration, the vehicle power device including a plurality of rotating electrical machines arranged side by side in the intersecting direction can be made smaller than before, and torque can be increased with the same physique.

  According to a sixth aspect of the present invention, in the vehicular power unit (500), the first rotating electrical machine (10, 10A, 10B), which is the rotating electrical machine according to any one of claims 1 to 3, and the first rotating electrical machine. And a third rotating electric machine (70) having an armature stator (71) and a field rotor (72), and a first field rotor (14,) of the first rotating electric machine. 14a, 14b) and the output shaft (R3) of the engine (20), a first rotor (R1), a modulator inductor (13) of the first rotating electrical machine, or a first field rotor ( 14, 14 a, 14 b) connected to either the fourth rotating body (R 7), the armature stator of the first rotating electrical machine and the armature stator of the third rotating electrical machine, and the second field A magnetic rotor, the first field rotor, the modulator inductor, and the Characterized in that it has rotating control device for controlling the rotation of one or more among the magnetic rotor and (30).

  According to this configuration, the vehicular power unit including a plurality of rotating electric machines that are operated by a generator and an electric motor can be made smaller than before, and the torque can be increased if the physique is the same.

  The “rotating electric machine” is arbitrary as long as it is a device having a rotating part (for example, a shaft or a shaft). For example, a generator, a motor, a motor generator, and the like are applicable. The “armature stator” is also called an armature, a stator, a stator or the like. The “field rotor” is also called a rotor or a rotor. The “rotating body” is a member that transmits power by rotating, such as a rotating shaft or a rotating plate.

It is a top view which shows partially the 1st structural example of a rotary electric machine. It is a top view which shows the flow of magnetic flux typically. It is a top view which shows the 2nd structural example of a rotary electric machine partially. It is a mimetic diagram showing the example of the 1st composition of the power unit for vehicles. It is a schematic diagram which shows the 2nd structural example of the motive power apparatus for vehicles. It is a schematic diagram which shows the structural example of a 1st rotary electric machine and a 2nd rotary machine. It is a schematic diagram which shows the 3rd structural example of the motive power apparatus for vehicles. It is a schematic diagram which shows the structural example of a some rotary electric machine. It is a schematic diagram which shows the 4th structural example of the vehicle power unit. It is a schematic diagram which shows the 5th structural example of the motive power apparatus for vehicles. It is a schematic diagram which shows the 6th structural example of the motive power apparatus for vehicles.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Note that unless otherwise specified, “connecting” means electrically connecting. Each figure shows elements necessary for explaining the present invention, and does not necessarily show all actual elements. When referring to directions such as up, down, left and right, the description in the drawings is used as a reference.

[Embodiment 1]
In Embodiment 1, a rotating electrical machine will be described with reference to FIGS. 1 and 2. FIG. 1 partially shows a configuration example of an inner rotor type rotating electrical machine 10A. The rotating electrical machine 10A includes an armature stator 11, a second field rotor 12a, a modulator inductor 13, a first field rotor 14a, and the like. The armature stator 11 corresponds to a stator (stator). The second field rotor 12a, the modulator inductor 13 and the first field rotor 14a correspond to a rotor (rotor).

  The first field rotor 14a is disposed on the innermost diameter side, and the armature stator 11 is disposed on the outermost diameter side. The modulator inductor 13 is disposed between the armature stator 11 and the first field rotor 14a. The second field rotor 12 a is disposed between the armature stator 11 and the modulator inductor 13.

  The armature stator 11 has a large number of slots 11s for winding windings (not shown). The number of winding phases can be arbitrarily set. In this embodiment, the winding is wound with three-phase windings (for example, U-phase, V-phase, and W-phase). The second field rotor 12 a includes magnets 12 m having the same number of pole pairs as the armature stator 11. An arrow of each magnet 12m illustrated in FIG. 1 indicates a magnetization direction (a direction from the S pole to the N pole; also referred to as a magnetization direction). By making the number of pole pairs of the armature stator 11 and the second field rotor 12a the same, the magnetic resistance on the second field rotor 12a side as viewed from the armature stator 11 is lowered.

  The modulator inductor 13 is also called a “modulator rotator”, “magnetic modulator”, “magnetic modulation rotor”, or the like. The modulator inductor 13 of this embodiment includes a magnetic body (mainly soft magnetic body) shown in a square shape, a support body (nonmagnetic body) that supports the magnetic body, and the like. The first field rotor 14a includes magnets 14m having pole pairs different from those of the armature stator 11 and the second field rotor 12a.

  If the number of magnetic bodies provided in the modulator inductor 13 is k, the number of pole pairs of the armature stator 11 and the second field rotor 12a is m, and the number of pole pairs of the first field rotor 14a is n, k = M + n is established. k, m, and n are all positive integers (particularly even numbers). As an example, if m = 6 is set and n = 8 is set, the number of magnetic bodies becomes k = 14.

  The flow of magnetic flux in the rotary electric machine 10A described above is as shown in FIG. For ease of understanding, the windings and magnets are not shown in FIG. The second field rotor 12 a has the same number of pole pairs as the armature stator 11, and rotates with the rotating magnetic field of the armature stator 11. In other words, when the rotating electrical machine 10A operates as an electric motor or a generator, the armature stator 11 and the second field rotor 12a are synchronized with respect to the magnetic field. Therefore, as indicated by a solid arrow, the magnetic flux φ1 of the armature stator 11 and the magnetic flux φ2 of the second field rotor 12a are combined (φm = φ1 + φ2), and act on the modulator inductor 13 and the first field rotor 14a. .

  On the other hand, as indicated by a two-dot chain line arrow, the magnetic flux φ3 of the modulator inductor 13 or the first field rotor 14a and the magnetic flux φ4 of the second field rotor 12a are combined (φv = φ3 + φ4), and the armature stator. 11 can also be expressed.

  Since the flow of magnetic flux as described above is formed, the second field rotor 12a compensates for the insufficient magnetic flux even if the size of the armature stator 11 (and thus the size of the rotating electrical machine 10A) is reduced. If the torque is the same, the physique of the rotating electrical machine 10A can be suppressed, and if the physique is the same, the torque can be improved.

  The rotating electrical machine 10A shown in FIG. 1 operates as an electric motor or a generator as described above, and can also function as a planetary gear mechanism. As an example, the modulator inductor 13 is made to correspond to the sun gear (sun gear), the first field rotor 14 is made to correspond to the planetary gear (planetary gear), and the armature stator 11 and the second field rotor 12 are made to the internal gear. (Outer gear) The first field rotor 14 may correspond to the sun gear, and the modulator inductor 13 may correspond to the planetary gear.

  According to the first embodiment described above, the following effects can be obtained.

  (1) The armature stator 11, the first field rotor 14a, the modulator inductor 13 interposed between the armature stator 11 and the first field rotor 14a, and the armature stator 11 A second field rotor 12a is provided between the tone inductor 13 and the magnet 12m having the same number of pole pairs as the armature stator 11 (see FIG. 1). According to this configuration, since the second field rotor 12a is configured with the same number of pole pairs as the armature stator 11, the magnetic resistance on the second field rotor 12a side viewed from the armature stator 11 is reduced, and the facing It becomes easy to excite the magnetic circuit. Lowering the magnetic resistance reduces leakage flux and increases magnetic coupling. The magnetic fluxes of the armature stator 11 and the second field rotor 12a are combined (φm = φ1 + φ2), and the rotational force (torque) of the modulator inductor 13 and the first field rotor 14a is increased. Therefore, it can be made smaller than before, and torque can be increased with the same physique.

[Embodiment 2]
In the second embodiment, a rotating electrical machine will be described with reference to FIG. For simplicity of illustration and description, the second embodiment will be described with respect to differences from the first embodiment. Therefore, the same elements as those used in Embodiment 1 are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 3 partially shows a configuration example of the inner rotor type rotating electrical machine 10B. The rotating electrical machine 10B includes an armature stator 11, a second field rotor 12b, a modulator inductor 13, a first field rotor 14b, and the like. The rotating electrical machine 10A shown in the first embodiment uses a second field rotor 12b instead of the second field rotor 12a, and uses a first field rotor 14b instead of the first field rotor 14a. Is different.

  The second field rotor 12 b includes magnets 12 m 1 and 12 m 2 having the same number of pole pairs as the armature stator 11. The magnet 12m1 corresponds to the magnet 12m of the second field rotor 12a (see FIG. 1). A magnet 12m2 provided separately from the magnet 12m1 is provided on the side facing the armature stator 11.

  The first field rotor 14b includes magnets 14m1 and 14m2. The magnet 14m2 corresponds to the magnet 14m of the first field rotor 14a (see FIG. 1). A magnet 14m1 provided separately from the magnet 14m2 is provided on the side facing the modulator inductor 13. The number of pole pairs of the magnet 14m1 may be set to be the number obtained by subtracting the number of pole pairs of the magnets 12m1 and 12m2 on the side of the modulator inductor 13 in the second field rotor 12b from the number of the modulator inductors 13.

  The magnetic flux flowing between the armature stator 11 and the second field rotor 12b and the modulator inductor 13 and the first field rotor 14b is the same as that in the first embodiment (see FIG. 2). However, since the magnetic flux generated by the magnet 12m2 provided in the second field rotor 12b and the magnet 14m1 provided in the first field rotor 14b also contributes, the torque can be further increased.

  According to the second embodiment described above, the following effects can be obtained. Note that the configuration of the rotating electrical machine 10 excluding the second field rotor 12b and the first field rotor 14b is the same as that of the first embodiment, and therefore, the same effect as that of the first embodiment can be obtained. .

  (2) The magnet 12m2 provided in the second field rotor 12b is provided on the side facing the armature stator 11 (see FIG. 3). According to this configuration, the facing magnetic circuit can be easily excited as viewed from the armature stator 11. Furthermore, the magnetic resistance and leakage flux between the modulator inductor 13 and the second field rotor 12b are reduced, and the magnetic coupling can be strengthened. Therefore, the size can be further reduced as compared with the conventional case, and the torque can be further increased with the same physique.

  (3) The first field rotor 14b is provided on the side facing the modulator inductor 13, and the magnet 12m1 on the side of the modulator inductor 13 in the second field rotor 12b is determined from the number of the modulator inductors 13. , 12m2 is obtained by subtracting the number of pole pairs from the magnet 14m1 (see FIG. 3). According to this configuration, the facing magnetic circuit can be easily excited as viewed from the armature stator 11. Further, the magnetic resistance and leakage flux between the first field rotor 14b and the modulator inductor 13 are reduced, and the magnetic coupling can be strengthened. Therefore, the size can be further reduced as compared with the conventional case, and the torque can be further increased with the same physique.

[Embodiment 3]
In the third embodiment, a vehicle power unit will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the element same as the element used in Embodiment 1, 2, and description is abbreviate | omitted.

  4 includes a rotating electrical machine 10, an engine 20, a rotation control device 30, a gear box 40, a rotating electrical machine 50, and the like. The rotary electric machine 10 may be the rotary electric machine 10A shown in the first embodiment or the rotary electric machine 10B shown in the second embodiment. Below, the example which applies the rotary electric machine 10B as the rotary electric machine 10 is demonstrated as a representative. The second field rotors 12 a and 12 b are expressed as a second field rotor 12, and the first field rotors 14 a and 14 b are expressed as a first field rotor 14. For convenience of explanation, the upward direction in the drawing is defined as the forward direction DF and the downward direction in the drawing is defined as the reverse direction DR. The rotating electrical machine 50 is operated as an electric motor (motor).

  The rotating electrical machine 10 is accommodated in an accommodation box B1 (also referred to as a housing or a case). An arbitrary internal combustion engine can be applied to the engine 20 and has an output shaft R3 (for example, a crankshaft or the like). The output shaft R3 is supported by the housing box B1 and the first field rotor 14 via bearings, and is fixed to the modulator inductor 13 via the first rotor R1. The form (namely, shape, material, number, etc.) of 1st rotary body R1 is not ask | required. A rocker Lk that brakes (stops) the rotation of the first field rotor 14 is interposed between the first field rotor 14 and the first rotor R1. The rocker Lk is operated by an actuator (for example, a solenoid, a motor, a cylinder, etc.) controlled by an ECU (Electronic Control Unit) (not shown).

  The second rotating body R2 is provided so as to be a coaxial double shaft with the output shaft R3, and is fixed to the first field rotor 14. As long as this condition is satisfied, the form (namely, shape, material, number, etc.) of the second rotating body R2 is not limited. The rotational force (torque) of the second rotating body R2 is transmitted to the axle portions AX1, AX2 via the counter gear G1 and the differential gear G2, and rotates the wheel Wh on the forward direction DF side.

  The rotation control device 30 corresponds to, for example, an ECU or an inverter. The rotation control device 30 is connected to the armature stator 11 of the rotating electrical machine 10 and controls one or more rotations among the second field rotor 12, the modulator inductor 13, and the first field rotor 14. . The rotation of the rotating electrical machine 50 is also controlled. Control is performed to rotate the rotor in response to the supply of power from the battery Eb. At the time of regeneration, control is also performed to charge the battery Eb with power generated by the rotating electrical machine 10 and the rotating electrical machine 50. In this embodiment, for example, a lithium ion battery is used as the battery Eb.

  The rotational force (torque) of the rotating electrical machine 50 is transmitted to the axle portions AX3 and AX4 via the gear box 40, and rotates the wheel Wh on the reverse direction DR side.

  According to Embodiment 3 described above, the following effects can be obtained. Note that the configuration of the rotating electrical machine 10 is the same as that of the first and second embodiments, and thus the same operational effects as those of the first and second embodiments can be obtained.

  (4) The vehicle power device 100 includes a rotating electrical machine 10, a first rotating body R1 that connects the modulator inductor 13 of the rotating electrical machine 10 and the output shaft R3 of the engine 20, and a first field rotor 14. One or more rotations among the second field rotor 12, the modulator inductor 13, and the first field rotor 14 are connected to the second rotor R <b> 2 to be coupled and the armature stator 11 of the rotating electrical machine 10. (See FIG. 4). The first rotating body R1 may be configured to be connected to the first field rotor 14 and the output shaft R3. According to these configurations, it is possible to provide the vehicular power unit 100 having the rotating electrical machine 10 that can be made smaller than before and can increase the torque with the same physique.

  (12) The second rotating body R2 and the axle portions AX1, AX2 are connected via a power transmission mechanism (counter gear G1 and differential gear G2) (see FIG. 4). According to this configuration, the rotational force (power) of the first field rotor 14 is transmitted to the wheel Wh via the second rotator R2 and the axle portions AX1, AX2, so that the automobile can be moved.

[Embodiment 4]
In the fourth embodiment, a vehicle power unit will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the element same as the element used in Embodiment 1-3, and description is abbreviate | omitted.

  A vehicle power unit 200 shown in FIG. 5 includes a first rotating electrical machine 10, an engine 20, a rotation control device 30, a gear box 40, a second rotating electrical machine 60, and the like. For simplification, the rotation control device 30, the gear box 40, and the axle portions AX3 and AX4 have the same configurations as those in the first embodiment, and are not shown (the same applies to FIGS. 7, 9, and 10 described later). is there). In the present embodiment, an example in which the rotary electric machine 10B shown in the second embodiment is applied as the first rotary electric machine 10 will be described as a representative, but the rotary electric machine 10A shown in the first embodiment may be applied.

  A second rotating electrical machine 60 illustrated in FIG. 6 is a rotating electrical machine having a configuration different from that of the first rotating electrical machine 10 and includes an armature stator 61, a field rotor 62, and the like. As with the armature stator 11, the armature stator 61 has a number of slots 61 s around which windings are wound. The field rotor 62 includes magnets 62m having the same number of pole pairs as the armature stator 61.

  As shown in FIGS. 5 and 6, the first rotating electrical machine 10 and the second rotating electrical machine 60 are housed in the housing box B2, and are arranged side by side in the axial direction DA (coaxial with the output shaft R3). Both the first field rotor 14 and the field rotor 62 are provided on the rotation axis R4. However, an appropriate interval is set to avoid mutual interference of magnetic fluxes. The rotation shaft R4 (hub) is provided to be rotatable with respect to the output shaft R3 via a bearing. A rocker Lk that brakes rotation by contacting the flange of the output shaft R3 is provided in the storage box B2. The flange of the output shaft R3 may be formed integrally with the output shaft R3, or may be formed separately from the output shaft R3 and fixed by a fixing means. The fixing means is arbitrary, and includes, for example, fastening using a fastening member such as a bolt or a screw, joining in which soldering or arc welding is performed by melting a base material, and adhesion using an adhesive.

  The second rotor R2 is fixed to the field rotor 62. The field rotor 62 is fixed to the first field rotor 14 via the rotation axis R4. As a result, the second rotor R2 is fixed to the first field rotor 14 and the field rotor 62.

  The rotation control device 30 is one of the second field rotor 12, the modulator inductor 13, the first field rotor 14 of the first rotating electrical machine 10, and the field rotor 62 of the second rotating electrical machine 60. The above rotation is controlled. Since the first field rotor 14 and the field rotor 62 are fixed to the rotation shaft R4, each torque generated by the excitation of the armature stators 11 and 61 can be transmitted to the second rotor R2. Therefore, the driving torque of the wheel Wh can also be increased.

  According to the fourth embodiment described above, the following effects can be obtained. Since the configuration of the first rotating electrical machine 10 (the rotating electrical machine 10A and the rotating electrical machine 10B) is the same as in the first and second embodiments, the same effects as those in the first and second embodiments can be obtained.

  (5) The vehicular power unit 200 includes the first rotating electrical machine 10 (the rotating electrical machine 10A or the rotating electrical machine 10B), the first rotating electrical machine 10 and the axial direction DA arranged side by side, and the armature stator 61 and the field rotor 62. A first rotating body R1 connecting the modulator inductor 13 of the first rotating electrical machine 10 and the output shaft R3 of the engine 20, the first field rotor 14 and the field rotation. The second rotor R2 connected to the child 62, the armature stator 11 and the armature stator 61 are connected to each other, and the second field rotor 12, the modulator inductor 13, the first field rotor 14, and the field magnet. The rotor 62 includes a rotation control device 30 that controls one or more rotations (see FIGS. 4, 5, and 6). The first rotating body R1 may be connected to the first field rotor 14 of the first rotating electrical machine 10 and the output shaft R3 of the engine 20. Two or more rotating electrical machines 10 may be provided. According to these configurations, the vehicle power device 200 including the first rotating electrical machine 10 and the second rotating electrical machine 60 can be made smaller than before, and the torque can be increased with the same physique.

[Embodiment 5]
In the fifth embodiment, a vehicle power unit will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the element same as the element used in Embodiment 1-4, and description is abbreviate | omitted.

  7 includes a plurality of rotating electrical machines 10, an engine 20, a rotation control device 30, a gear box 40, and the like. Compared to the vehicle power unit 200 shown in the fourth embodiment, the difference is that a plurality of (two in this embodiment) rotating electrical machines 10 are provided. In the present embodiment, an example in which all of the rotating electrical machines 10B are configured will be described as a representative example, but all of them may be configured of the rotating electrical machines 10A, or the rotating electrical machines 10A and the rotating electrical machines 10B may be mixed.

  As shown in FIGS. 7 and 8, the plurality of rotating electrical machines 10 are housed in the housing box B3 and arranged side by side in the axial direction DA (coaxial direction with the output shaft R3). The plurality of rotating electrical machines 10 includes a common first field rotor 14. Specifically, the rotating shaft R4 is provided with magnets 14m applied to the plurality of rotating electrical machines 10. In order to block the flow of magnetic flux, a magnetic flux blocking portion St is provided between the magnets 14m. The magnetic flux blocking unit St further has a function of mechanically stopping the rotation of the first field rotor 14. It is the same as the rocker Lk in that the rotation of the target element is stopped. The material (including the material) for forming the magnetic flux blocking portion St is arbitrary as long as it prevents the flow of magnetic flux and stops the rotation of the first field rotor 14.

  The first rotating body R1 connects the modulator inductor 13 included in one first rotating electrical machine 10 (left side of the drawing) and the output shaft R3 of the engine 20. The second rotating body R2 is fixed to a modulator inductor 13 included in another first rotating electrical machine 10 (right side of the drawing). The rotation control device 30 controls one or more rotations among the second field rotor 12, the modulator inductor 13, and the first field rotor 14 applied to the plurality of rotating electrical machines 10.

  According to the fifth embodiment described above, the following effects can be obtained. Since the configuration of the first rotating electrical machine 10 (the rotating electrical machine 10A and the rotating electrical machine 10B) is the same as in the first and second embodiments, the same effects as those in the first and second embodiments can be obtained.

  (6) The vehicle power unit 300 performs a first rotation that connects the plurality of rotating electrical machines 10 arranged side by side in the axial direction DA, the modulator inductor 13 of the one rotating electrical machine 10, and the output shaft R3 of the engine 20. The second field rotation is connected to the body R1, the second rotor R2 that connects the first field rotors 14 of the plurality of rotating electrical machines 10, and the armature stator 11 included in the one or more rotating electrical machines 10. A rotation control device 30 that controls one or more rotations of the element 12, the modulator inductor 13, and the first field rotor 14 is provided (see FIGS. 4, 7, and 8). The first rotating body R1 may be configured to be connected to the first field rotor 14 applied to one or more rotating electrical machines 10 and the output shaft R3 of the engine 20. Three or more rotating electrical machines 10 may be used. According to these configurations, the vehicular power unit 300 including the plurality of rotating electrical machines 10 arranged side by side in the axial direction DA can be made smaller than before, and the torque can be increased with the same physique.

  (7) The first field rotator 14 common to the plurality of rotating electrical machines 10 is included, and the first field rotator 14 includes a magnetic flux blocking portion St that blocks the flow of magnetic flux between the rotating electrical machines 10. (See FIG. 7). According to this configuration, since the first field rotor 14 can be shared, the number of parts can be reduced. Therefore, the number of work steps can be reduced and the cost can be reduced.

  (8) The magnetic flux blocking unit St is configured to mechanically stop the rotation of the first field rotor 14 (see FIG. 7). According to this configuration, in addition to the function of blocking the flow of magnetic flux between the rotating electrical machines 10, the rotation can be stopped by the mechanical brake.

[Embodiment 6]
In the sixth embodiment, a vehicle power unit will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the element same as the element used in Embodiment 1-5, and description is abbreviate | omitted.

  A vehicle power unit 400 shown in FIG. 9 includes a plurality (in this embodiment, two) of rotating electrical machines 10, an engine 20, a rotation control device 30, a gear box 40, and the like. Although the point provided with the some rotary electric machine 10 is the same as Embodiment 4, the arrangement | positioning directions differ. The plurality of rotating electrical machines 10 housed in the housing box B4 are arranged in the cross direction DC (particularly in the orthogonal direction). This embodiment will be described as a representative example in which all of the rotating electrical machine 10B is configured as in the fourth embodiment. However, all of the rotating electrical machine 10A may be configured, or the rotating electrical machine 10A and the rotating electrical machine 10B may be mixed. Also good.

  In the rotating electrical machine 10 shown in the upper side of the drawing, the modulator inductor 13 is connected to the output shaft R3 of the engine 20 via the first rotating body R1. The first field rotor 14 is connected to the second rotor R2. The second rotating body R2 is provided to be rotatable with respect to the output shaft R3 via a bearing.

  A rotating electrical machine 10 modulator inductor 13 shown on the upper side of the drawing is connected to a rotating shaft R5 via a first rotating body R1. The first field rotor 14 is connected to the second rotor R2. The second rotating body R2 is provided to be rotatable with respect to the rotation axis R5 via a bearing.

  Between the rotating electrical machine 10 shown on the upper side of the drawing and the rotating electrical machine 10 shown on the lower side of the drawing, the first field rotors 14 are connected to each other by a connecting portion C1. A connecting portion C2 is fixed to the rotation shaft R5. The connecting part C2 is connected to the differential gear G2. The connecting portions C1 and C2 are optional as long as they can transmit a rotational force (torque). For example, gears, shafts, racks and pinions are applicable. In this embodiment, an example in which a gear is applied is illustrated as an example. The rotational force (torque) of the rotational shaft R5 is transmitted to the axle portions AX1, AX2 via the connecting portion C2 and the differential gear G2, and rotates the wheel Wh on the forward direction DF side.

  According to the sixth embodiment described above, the following effects can be obtained. Since the configuration of the first rotating electrical machine 10 (the rotating electrical machine 10A and the rotating electrical machine 10B) is the same as in the first and second embodiments, the same effects as those in the first and second embodiments can be obtained.

  (9) The vehicle power unit 400 includes a plurality of rotating electrical machines 10 arranged side by side in a cross direction DC that intersects the axial direction DA, and the modulator inductor 13 or the first field rotor 14 of the single rotating electrical machine 10. And a first rotating body R1 that connects the output shaft R3 of the engine 20, a second rotating body R2 that is connected to the first field rotor 14 of the rotating electrical machine 10, and a first that is applied to the plurality of rotating electrical machines 10. A connection portion C1 for connecting the field rotor 14 and the modulator inductor 13 to each other and an armature stator 11 included in one or more rotating electric machines 10 are connected to the second field rotor 12 and the modulator induction. The rotor 13 and the first field rotor 14 are configured to include a rotation control device 30 that controls one or more rotations (see FIGS. 4 and 9). The first rotating body R1 may be connected to the first field rotor 14 applied to the plurality of rotating electrical machines 10 and the output shaft R3 of the engine 20. Although not shown, the modulator inductors 13 may be connected to each other. Further, the first field rotor 14 of one rotating electrical machine 10 and the modulator inductor 13 of the other first rotating electrical machine 10 may be connected to each other. That is, it is only necessary that the rotors included in the plurality of rotating electrical machines 10 are connected to each other and a rotational force (torque) can be transmitted from one to the other. A plurality of rotating electrical machines 10 may be arranged side by side in the oblique direction. Three or more rotating electrical machines 10 may be used. Regardless of the configuration, the vehicle power unit 400 including the plurality of rotating electrical machines 10 arranged side by side in the cross direction DC can be made smaller than before, and the torque can be increased with the same physique. Furthermore, the width (length) in the axial direction DA can also be suppressed.

[Embodiment 7]
In the seventh embodiment, a vehicle power unit will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the element same as the element used in Embodiment 1-6, and description is abbreviate | omitted.

  A vehicle power unit 500 shown in FIG. 10 includes a first rotating electrical machine 10, an engine 20, a rotation control device 30, a gear box 40, a third rotating electrical machine 70, and the like. In the present embodiment, an example in which the rotary electric machine 10B shown in the second embodiment is applied as the first rotary electric machine 10 will be described as a representative, but the rotary electric machine 10A shown in the first embodiment may be applied.

  The third rotating electric machine 70 is a rotating electric machine having a configuration different from that of the first rotating electric machine 10, and includes an armature stator 71, a field rotor 72, and the like. The first rotating electrical machine 10 and the third rotating electrical machine 70 are housed in the housing box B5 and arranged side by side in the axial direction DA (coaxial direction with the output shaft R3). In this embodiment, an example in which the third rotating electrical machine 70 is operated as a generator and the first rotating electrical machine 10 is operated as an electric motor will be described.

  The third rotator R6 is used for fixing between the field rotator 72 and the modulator inductor 13. The third rotating body R6 is provided to be rotatable with respect to the output shaft R3 via a bearing. The fourth rotating body R7 is provided so as to be a coaxial double shaft with the output shaft R3, and is fixed to the second field rotor 12. As long as this condition is satisfied, the form of the fourth rotating body R7 is not limited. The rotational force (torque) of the fourth rotating body R7 is transmitted to the axle portions AX1, AX2 via the counter gear G1 and the differential gear G2, and rotates the wheel Wh on the forward direction DF side. The second rotating body R2 is fixed to the first field rotor 14 and the field rotor 72.

  The rotation control device 30 is one of the second field rotor 12, the modulator inductor 13, the first field rotor 14 of the first rotating electrical machine 10, and the field rotor 72 of the third rotating electrical machine 70. The above rotation is controlled. The electric power generated in the third rotating electrical machine 70 is controlled to be supplied directly to the first rotating electrical machine 10 or indirectly through the battery Eb (see FIG. 4).

  According to the seventh embodiment described above, the following effects can be obtained. Since the configuration of the first rotating electrical machine 10 (the rotating electrical machine 10A and the rotating electrical machine 10B) is the same as in the first and second embodiments, the same effects as those in the first and second embodiments can be obtained.

  (10) a first rotating electrical machine 10 that is the rotating electrical machine 10, a third rotating electrical machine 70 that is arranged side by side with the first rotating electrical machine 10 in the axial direction DA, and includes an armature stator 71 and a field rotor 72; A first rotating body R1 that connects the first field rotor 14 of the one-rotating electric machine 10 and the output shaft R3 of the engine 20, and a fourth rotating body R7 that is connected to the modulator inductor 13 of the first rotating electric machine 10. Are connected to both the armature stator 11 of the first rotating electrical machine 10 and the armature stator 71 of the third rotating electrical machine 70, and the second field rotor 12, the first field rotor 14, and the modulator inductor 13. And a rotation control device 30 that controls at least one of the field rotors 72 (see FIG. 10). The fourth rotating body R7 may be connected to the first field rotor 14 of the first rotating electrical machine 10. Two or more first rotating electrical machines 10 may be provided. According to these configurations, the vehicle power unit 500 including the first rotating electrical machine 10 and the third rotating electrical machine 70 can be made smaller than before, and the torque can be increased if the same physique is used.

  (11) When the first rotating electrical machine 10 operates as an electric motor, the rotation control device 30 operates the third rotating electrical machine 70 as a generator, and the electric power generated by the third rotating electrical machine 70 is the first rotating electrical machine 10. In this case, the control is performed so that the battery is directly supplied to the battery or indirectly through the battery Eb (see FIGS. 4 and 10). The first rotating electrical machine 10 may be operated as a generator, and the third rotating electrical machine 70 may be operated as an electric motor. In this case, the power generated by the first rotating electrical machine 10 may be controlled so as to be supplied directly to the third rotating electrical machine 70 or indirectly through the battery Eb. According to these structures, since electric power can be obtained from the 3rd rotary electric machine 70 (or 1st rotary electric machine 10), the electric power of the battery Eb required for rotation can be suppressed.

[Other Embodiments]
In the above, although the form for implementing this invention was demonstrated according to Embodiment 1-7, this invention is not limited to the said form at all. In other words, various forms can be implemented without departing from the scope of the present invention. For example, the following forms may be realized.

  In the above-described third to seventh embodiments, the rotational force (torque) generated by the rotating electrical machine 50 (motor) whose rotation is controlled by the rotation control device 30 is applied to the wheel Wh via the gear box 40 and the axle portions AX3 and AX4. It was set as the structure which transmits (refer FIG. 4). Instead of this form, the rotational force (torque) generated in the rotating electrical machine 10 (10A, 10B) whose rotation is controlled by the rotation control device 30 as in the vehicle power device 600 shown in FIG. , AX4 may be transmitted to the wheel Wh. Although not shown, one of the second field rotor 12, the modulator inductor 13, and the first field rotor 14 may be connected to the axle portions AX3 and AX4. One rotor may be connected to the axle portion AX3, and the other rotor may be connected to the axle portion AX4. In the latter connection form, the rotary electric machine 10 can also have the function of the differential gear G2. The efficiency can be increased as compared with the power transmission by the gear box 40. When the rotating electrical machine 50 and the gear box 40 are not provided, the rotational force (torque) of the first rotating body R1 may be transmitted to the axle portions AX3 and AX4 by a power transmission mechanism such as a shaft or a gear.

  The rotary electric machine 10A shown in the first embodiment and the rotary electric machine 10B shown in the second embodiment are both inner rotor types in which a field rotor is arranged on the inner diameter side and an armature stator is arranged on the outer diameter side. (See FIGS. 1 and 3). Instead of this configuration, an outer rotor type in which an armature stator is disposed on the inner diameter side and a field rotor is disposed on the outer diameter side may be used. For example, a configuration in which the armature stator 11, the second field rotor 12, the modulator inductor 13, and the first field rotor 14 are arranged in this order from the inner diameter side toward the outer diameter side is applicable. Since only the difference between the inner rotor type and the outer rotor type is obtained, the same effects as those of the first and second embodiments can be obtained. Further, the outer rotor type rotating electrical machine 10 (10A, 10B) may be applied to the vehicle power devices 100 to 600 shown in the third to seventh embodiments, and the same effects as the third to seventh embodiments are obtained. Can do.

  The rotary electric machine 10A shown in the first embodiment and the rotary electric machine 10B shown in the second embodiment are both armature stator 11 and second field rotation formed in a cylindrical shape with the output shaft R3 as the central axis. The element 12, the modulator inductor 13, and the first field rotor 14 are configured as a radial gap type that is arranged concentrically (see FIGS. 1 and 3). Instead of this form, an axial gap type in which an armature stator 11, a second field rotor 12, a modulator inductor 13, and a first field rotor 14 formed in a disk shape are arranged on the axial direction DA. You may comprise. The disc-shaped member can suppress the thickness (length) in the axial direction DA as compared to the cylindrical member. Since the thickness in the axial direction DA can be suppressed, the size of the rotating electrical machine itself and the storage box B (B1 to B5) can also be suppressed. The axial gap type rotating electrical machine 10 (10A, 10B) may be applied to the vehicle power devices 100 to 600 shown in the third to seventh embodiments, and the same effects as the third to seventh embodiments can be obtained. it can.

  About the rotary electric machine (10, 60, 70) shown in Embodiments 4 to 7 described above, two or more may be appropriately combined. For example, a configuration in which the first rotating electrical machine 10 and the second rotating electrical machine 60 (see FIG. 5) shown in the fourth embodiment are combined with the plurality of rotating electrical machines 10 (see FIG. 7) shown in the sixth embodiment is applicable. To do. A configuration in which the plurality of rotating electrical machines 10 (see FIG. 7) shown in the fifth embodiment and the plurality of rotating electrical machines 10 (see FIG. 7) shown in the sixth embodiment are also applicable. The same effect as the embodiment of the combination source can be obtained.

  In the first to seventh embodiments described above, a lithium ion battery is used as the battery Eb (see FIG. 4). Instead of (or in addition to) this form, another secondary battery may be used. Other secondary batteries include, for example, lead storage batteries, nickel / hydrogen storage batteries, nickel / cadmium storage batteries, nickel / iron storage batteries, nickel / zinc storage batteries, and silver oxide / zinc storage batteries. A fuel cell may be used. Regardless of which battery is used, the same operation and effect as in the first to seventh embodiments can be obtained because the operation is the same as in the first to seventh embodiments.

10 (10A, 10B) rotating electrical machine (first rotating electrical machine)
11 Armature stator (stator)
12 (12a, 12b) Second field rotor (rotor)
12m Magnet 13 Modulator inductor (rotor)
14 (14a, 14b) First field rotor (rotor)
20 engine (internal combustion engine)
30 Rotation control device 60 Second rotating electrical machine 70 Third rotating electrical machine (generator)
100, 200, 300, 400, 500, 600 Vehicle power unit

Claims (12)

An armature stator (11);
A first field rotor (14, 14a, 14b);
A modulator inductor (13) interposed between the armature stator and the first field rotor;
A second field rotor (12, 12a, 12b) interposed between the armature stator and the modulator inductor and having a magnet (12m) having the same number of pole pairs as the armature stator;
A rotating electrical machine (10, 10A, 10B) characterized by comprising:   The rotating electrical machine according to claim 1, wherein the magnet provided in the second field rotor is provided on a side facing the armature stator.   The first field rotor is provided on the side facing the modulator inductor, and the number of pole pairs of the magnet on the modulator inductor side in the second field rotor is calculated from the number of the modulator inductors. The rotating electrical machine according to claim 1 or 2, further comprising a magnet (14m) having a reduced number of pole pairs. The rotating electrical machine (10, 10A, 10B) according to any one of claims 1 to 3,
A first rotor (R1) for connecting a modulator inductor (13) or a first field rotor (14, 14a, 14b) of the rotating electrical machine and an output shaft (R3) of the engine (20);
A second rotating body (R2) connected to the first field rotor;
A rotation control device (30) connected to the armature stator (11) of the rotating electric machine and controlling one or more rotations of the second field rotor, the modulator inductor, and the first field rotor. )When,
A vehicle power device (100, 200, 300, 400) characterized by comprising: A first rotating electrical machine (10, 10A, 10B) which is the rotating electrical machine (10, 10A, 10B) according to any one of claims 1 to 3;
A second rotating electrical machine (60) arranged in the axial direction (AX) with the first rotating electrical machine and having an armature stator (61) and a field rotor (62);
A first rotating body (R1) that connects the modulator inductor (13) or the first field rotor (14, 14a, 14b) of the first rotating electrical machine and the output shaft (R3) of the engine (20). When,
A second rotating body (R2) connected to the field rotor of the second rotating electrical machine;
Connected to one or both of the armature stator of the first rotating electrical machine and the armature stator of the second rotating electrical machine, the second field rotor, the modulator inductor, the first field rotor, A rotation control device (30) for controlling rotation of one or more of the field rotors;
A vehicle power unit (200) characterized by comprising: A plurality of rotating electrical machines (10, 10A, 10B) according to any one of claims 1 to 3, arranged side by side in the axial direction (AX),
A first rotating body (1) that connects the modulator inductor (13) of the rotating electric machine or the first field rotor (14, 14a, 14b) of the rotating electric machine and the output shaft (R3) of the engine (20). R1)
A second rotor (R2) connected to the other modulator inductor or other first field rotor, excluding the one modulator inductor or one first field rotor;
Connected to an armature stator (11) included in one or more of the rotating electric machines, and controls one or more rotations of the second field rotor, the modulator inductor, and the first field rotor. A rotation control device (30);
A vehicle power unit (300) comprising: Having the first field rotor common to the plurality of rotating electric machines,
The vehicle power unit according to claim 6, wherein the first field rotor has a magnetic flux blocking section (St) for blocking a flow of magnetic flux between the rotating electric machines.   The vehicle power unit according to claim 7, wherein the magnetic flux blocking unit is configured to mechanically stop the rotation of the first field rotor. A plurality of rotating electrical machines (10, 10A, 10B) according to any one of claims 1 to 3, arranged side by side in an intersecting direction (BX) intersecting the axial direction (AX),
A first rotating body (1) that connects the modulator inductor (13) of the rotating electric machine or the first field rotor (14, 14a, 14b) of the rotating electric machine and the output shaft (R3) of the engine (20). R1)
A second rotor (R2) connected to the other modulator inductor or other first field rotor, excluding the one modulator inductor or one first field rotor;
A connecting portion (C1) for connecting the first field rotor and the modulator inductors applied to a plurality of the rotating electrical machines;
Connected to an armature stator (11) included in one or more of the rotating electric machines, and controls one or more rotations of the second field rotor, the modulator inductor, and the first field rotor. A rotation control device (30);
A vehicle power unit (400) comprising: A first rotating electrical machine (10, 10A, 10B) which is the rotating electrical machine according to any one of claims 1 to 3;
A third rotating electrical machine (70) arranged in the axial direction with the first rotating electrical machine and having an armature stator (71) and a field rotor (72);
A first rotating body (R1) connecting the first field rotor (14, 14a, 14b) of the first rotating electrical machine and the output shaft (R3) of the engine (20);
A fourth rotating body (R7) connected to either the modulator inductor (13) or the first field rotor (14, 14a, 14b) of the first rotating electrical machine;
Connected to both the armature stator of the first rotating electrical machine and the armature stator of the third rotating electrical machine, the second field rotor, the first field rotor, the modulator inductor, and the field A rotation control device (30) for controlling one or more rotations of the rotor;
A vehicle power unit (500) comprising:   The rotation control device operates the third rotating electrical machine as a generator when the first rotating electrical machine is operated as an electric motor, and the electric power generated by the third rotating electrical machine is directly transmitted to the first rotating electrical machine. The vehicle power unit according to claim 10, wherein the vehicle power unit is controlled to be supplied to the vehicle or indirectly through a battery (Eb).   The vehicle power unit according to any one of claims 4 to 11, wherein the second rotating body and the axle portion (AX1, AX2, AX3, AX4) are connected.

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