JP2013055789A - Motor generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor generator capable of suppressing power consumption by mounting an air-core coil between electromagnets for power generation, thereby fetching electric power with no load and hence executing power storage into a storage battery for supplying electric power to an electromagnet for motor.SOLUTION: A motor generator 1 includes: a first permanent magnet 7 mounted on a first disc 21 on motor side; a plurality of electromagnets 8 for motor; a second permanent magnet 14 mounted on a second disc 41 on generator side; electromagnets 9 for power generation; and a storage battery 13 for supplying DC power to the electromagnets for motor to rotate the first disc 21. Between the electromagnets 9 for power generation, each of air-core coils 15 is disposed. A part of electric power fetched from the air-core coil 15 is stored into the storage battery 13.

Description

  The present invention relates to a motor generator including an AC voltage output winding that generates electric power by supplying DC power to a motor electromagnet and rotating a disk on which a permanent magnet is arranged.

  2. Description of the Related Art Conventionally, a motor generator that generates power by directly connecting a motor (electric motor) and a generator coaxially and rotating the motor is known.

  In addition, the present inventors have invented a one-way energization type brushless DC motor having an AC voltage output winding capable of exhibiting a power generation function capable of obtaining a continuous electromotive force using the same rotating body ( Patent Document 1). In this one-way energization type brushless DC motor, by supplying direct current power, a motor electromagnet that rotates a disk on which a plurality of permanent magnets are arranged, and the disk formed by the motor electromagnet are formed on the disk. A motor (electric motor) and a generator are integrally provided by fixing a generator electromagnet that generates an induced electromotive force according to the movement of a plurality of permanent magnets to the same frame. As a result, the disk on which the plurality of permanent magnets are arranged is rotated by the motor electromagnet supplied with DC power, and an electromotive force can be continuously obtained in the AC voltage output winding.

Japanese Patent No. 4569833

  However, in Patent Document 1, predetermined power is consumed by energizing the motor electromagnet to generate a repulsive force and an attractive force between the permanent magnet and the motor electromagnet to rotate the disk. Therefore, it is demanded to suppress this power consumption.

  The present invention has been made in view of the above problems, and by providing an air-core coil between power generation electromagnets, a storage battery that takes out power without load and supplies power to the motor electromagnet is provided. An object of the present invention is to provide a motor generator capable of suppressing power consumption by storing power in the motor.

  In order to achieve the above object, a motor generator according to claim 1 includes a first frame, a first disk rotatably attached to the first frame via a rotation shaft, and a second disk. Frame, a second disk rotatably attached to the second frame via the rotating shaft, and magnetic poles on the front and back surfaces arranged at equal intervals along the circumferential direction on the first disk. A plurality of first permanent magnets formed on the second disk and a plurality of second flat permanent magnets arranged at equal intervals along the circumferential direction on the second disk and having magnetic poles formed on the front and back surfaces. A first magnetic core fixed to the first frame corresponding to the plurality of first permanent magnets, and a first winding wound around each of the first magnetic cores A plurality of electromagnets for a motor, and the first winding for rotating the first disk A storage battery for supplying DC power to the battery, a second magnetic core fixed to the second frame corresponding to the plurality of second permanent magnets, and power wound around the second magnetic core. A second winding connected to the consuming device, and the first electromagnet for the motor causes a magnetic force to act on the plurality of first permanent magnets to rotate the first disk via the rotating shaft. A plurality of power generations that generate an induced electromotive force by changing a magnetic field around the second winding in accordance with movement of the plurality of second permanent magnets formed on the second disk rotating Electromagnets and air core coils respectively disposed between the plurality of power generation electromagnets, wherein the first permanent magnet includes a center of the first disk and a center of the first permanent magnet. And a normal line at the center of the magnetic pole surface of the first permanent magnet Is arranged to be greater than 0 ° and equal to or less than 60 °, so that when a constant DC current is continuously fed to the first winding, the first winding is not fed With respect to the first permanent magnet in a stable equilibrium operation state in which the detent torque generated by the attractive force between the first magnetic core and the first permanent magnet is zero, the first magnetic core is used as a reference. In the characteristic curve of the measured rotation angle of the first permanent magnet and the electromagnetic torque generated by the current of the first winding and the first permanent magnet, the rotation of rotating the first disk in the opposite direction. Either when a large-value narrow-angle torque with a large angle range and a large value is generated or when a small-value wide-angle torque with a wide rotation angle range and a small value for rotating the first disk in the positive direction is generated In the first winding, the storage battery DC power is supplied, and at least a part of the induced electromotive force generated in the air-core coil in accordance with the movement of the second permanent magnet accompanying the rotation of the second disk is stored in the storage battery. Yes.

  The motor generator according to claim 2, wherein the second permanent magnet includes a straight line passing through a center of the second disk and a center of the second permanent magnet, and a magnetic pole surface of the second permanent magnet. It is characterized in that the angle formed by the normal line at the center is 0 °.

  The motor generator according to claim 3, wherein each of the first disk and the second disk is fixed to the rotating shaft two by two, and the first permanent magnet disposed on one of the first disks. And the first permanent magnet disposed on the other first disk is opposite in polarity, and the second permanent magnet disposed on one of the second disks and the second permanent magnet disposed on the other first disk. The polarity of the second permanent magnet arranged on the second disk is opposite to that of the second permanent magnet, and the first magnetic core has the first end arranged on one of the first disks. Corresponding to one permanent magnet, the other end is fixed so as to correspond to the first permanent magnet disposed on the other first disk, and the second magnetic core has one end The portion corresponds to the second permanent magnet disposed on one of the second disks, and the other end corresponds to the other second disk. Is characterized in that it is fixed so as to correspond to the location has been the second permanent magnet.

  The motor generator according to claim 4, wherein the first frame, the second frame, the first disk, and the second disk are each formed of a non-metallic material. Yes.

  According to the motor generator of claim 1, the air-core coils respectively disposed between the plurality of power-generating electromagnets are provided, and the induced electromotive force generated in the air-core coils is supplied to the motor electromagnet. Since the electric power is stored in the storage battery, the electric power consumed by the storage battery when the motor electromagnet is energized can be suppressed. In addition, since an air-core coil is used, it is efficient because there is no resistance and electric power can be taken out with no load unlike the case where there is a normal iron core.

  In addition, if electric power is supplied to the first winding at the timing when a large-value narrow-angle torque with a large electromagnetic torque value is generated, a large torque can be obtained with a small electric power. If power is supplied to the first winding at the timing when the small value wide angle torque with a large width of the generated rotation angle is generated, the power feeding time can be lengthened, so the first magnetic core and the first magnetic core Even if the time required to increase and decrease the current flowing through the first winding due to the self-inductance of the electromagnet including one winding is large, the current flowing through the first winding can be increased.

  According to the motor generator of claim 2, the second permanent magnet formed in a wide flat plate shape includes a straight line passing through the center of the second disk and the center of the second permanent magnet, and the second permanent magnet. Since the angle formed by the normal to the center of the magnetic pole surface of the permanent magnet is 0 °, the power generation time by the power generation electromagnet and the air-core coil can be extended.

  According to the motor generator according to claim 3, the two first disks are provided, the first permanent magnet disposed on one of the first disks and the first disk disposed on the other first disk. The first magnetic core has a polarity opposite to that of the first permanent magnet, and one end of the first magnetic core corresponds to the first permanent magnet disposed on one of the first disks, and the other The end is fixed so as to correspond to the first permanent magnet disposed on the other first disk. Accordingly, since both electromagnetic forces generated at the two end portions of the first magnetic core can be used for the rotation of the first disk, the conversion efficiency of energy from electric power to power can be improved. .

  According to the motor generator of claim 4, since the first frame, the second frame, the first disk, and the second disk are each formed of a non-metallic material, Iron loss can be reduced and the conversion efficiency from DC power to AC power can be improved.

It is a schematic plan view which shows an example of a structure of the motor generator which concerns on this invention. It is the sectional view on the AA line of FIG. 1 of the motor generator which concerns on this invention. It is the BB sectional drawing of FIG. 1 of the motor generator which concerns on this invention. It is explanatory drawing which shows the (theta) -T characteristic when not supplying electric power to the electromagnet for motors. It is explanatory drawing which shows the (theta) -T characteristic at the time of supplying a direct-current constant current to the electromagnet for motors. The first permanent magnet, the motor electromagnet, the colored region and the transparent region of the position detection disk, and the position of the position detection sensor in the stable equilibrium operation state when no power is supplied to the motor electromagnet when the small value wide angle torque is used It is explanatory drawing which showed the relationship linearly. It is explanatory drawing explaining the transparent window area | region R provided in the coloring area | region. The first permanent magnet, the motor electromagnet, the colored region and the transparent region of the position detection disk, and the position of the position detection sensor in a stable and balanced operation state when no power is supplied to the motor electromagnet when the large value narrow angle torque is used It is explanatory drawing which showed the relationship linearly.

  Hereinafter, the motor generator 1 which concerns on this invention is demonstrated, referring drawings. As shown in FIGS. 1 to 3, the motor generator 1 according to the present invention includes a first rotating body 2, a first frame 3 that supports the first rotating body 2, and a second rotating body. 4 and a second frame 5 that supports the second rotating body 4.

  In the first rotating body 2, two first disks 21, 22, one disk 23, and one position detection disk 24 are respectively provided on a shaft 6 serving as a rotation axis via a spacer 60. It is fixed so that it can rotate freely at intervals. Four first permanent magnets 7, 7 a are provided at equal intervals on the periphery of the first disks 21, 22 on one surface of each of the first disks 21, 22. On the other hand, four motor electromagnets 8 are fixed to the first frame 3 by the first support member 3a so as to correspond to each of the four sets of first permanent magnets 7. ing. In the motor electromagnet 8, one magnetic pole corresponds to the permanent magnet 7 (one of the two permanent magnets 7) of the first disk 21, and the other magnetic pole of the motor electromagnet 8 is the other. It corresponds to the permanent magnet 7a of the first disk 22 (the other of the two permanent magnets 7).

  The first permanent magnet 7 has a flat plate shape with magnetic poles formed on the front and back surfaces, and is specifically a neodymium-based rare earth magnet. Thus, by using the 1st permanent magnet 7 by which the N pole and the S pole were formed in the surface and the back surface, each magnetic pole surface becomes wide and it can improve the rotational torque of the rotary body 2 as a motor. .

  As shown in FIG. 1, the first permanent magnets 7 and 7 a are embedded in the first disks 21 and 22 by about several millimeters, respectively. The method for fixing the first permanent magnets 7 and 7a is not particularly limited, and the first permanent magnets 7 and 7a may be fixed to the first disks 21 and 22 using metal fittings or the like.

  Further, as shown in FIG. 2, the first permanent magnets 7 and 7a are respectively connected to the center of the first permanent magnets 7 and 7a from the center O of the first disks 21 and 22 (first rotating body 2). The angle α at which the straight line L1 passing through P intersects the magnetic pole direction of the first permanent magnets 7 and 7a, that is, the normal line L2 in the normal direction on the front or back surface of the first permanent magnets 7 and 7a, is the first disk. When viewed from the center O of 21 and 22, it is fixed so that 0 ° <α ≦ 60 °. The first permanent magnets 7, 7 a have a polarity of the magnetic pole surface in the outer direction of the first disks 21, 22 that is opposite to the polarity of the magnetic poles facing the first disks 21, 22 of the motor electromagnet 8. It is the same.

  In addition, four first permanent magnets 7 and four first permanent magnets 7a provided on each of the first first disk 21 and the first first disk 22 are arranged in the outer direction (or the inner direction) of the first permanent magnet 7a. The polarity of the surface is reversed. That is, in the first permanent magnet 7 provided on one first disk 21, the N pole magnetic pole surface faces the outside of the disk 21, and the first permanent magnet 7 provided on the other first disk 22. In the permanent magnet 7a, the pole face of the S pole faces the outside of the disk 22. This is because the polarities of the two magnetic poles of the motor electromagnet 8 are different. One magnetic pole of one motor electromagnet 8 faces the outer magnetic pole surface of the first permanent magnet 7 of one first disk 21, and the other magnetic pole of the motor electromagnet 8 is the other first disk. It faces the magnetic pole surface on the outside of the 22nd first permanent magnet 7a. Therefore, the polarity of the magnetic pole surface of the first permanent magnet 7 of the first disk 21 that faces one magnetic pole of one motor electromagnet 8 and the other magnetic pole of the motor electromagnet 8 that faces the other magnetic pole. This is different from the polarity of the magnetic pole face of the first permanent magnet 7a of the first disk 22. The two first disks 21 and 22 are fixed by being overlapped by a spacer 60 so that the circumferential positions of the first permanent magnets 7 and 7a included in each of the first disks 21 and 22 are the same. Therefore, on the motor (electric motor) side of the motor generator 1, two sets of the first permanent magnets 7 and 7a are provided, and a total of eight first permanent magnets 7 and 7a are provided. On the other hand, the number of motor electromagnets 8 on the motor (motor) side of the motor generator 1 is four.

  As described above, one first disk 21, the other first disk 22, and one disk 23 are in the order of the disk 21, the disk 22, and the disk 23 in the rotation axis direction of the motor generator 1. It is fixed by the spacer 60. And the position detection disk 24 is being fixed to the center disk 22 so that it may become coaxial. The position detection disk 24 is for detecting the rotation position (rotation angle) of the first permanent magnets 7 and 7a. The position detection disk 24 is slightly larger in diameter than the first disks 21 and 22 and the disk 23, and is formed of a transparent synthetic resin or the like. The predetermined area of the large diameter portion protruding from the periphery of the disk 22 of the position detection disk 24 is provided with a marker colored in black in order to specify the rotational position of the first permanent magnets 7 and 7a. The position detection sensor 10 is attached to the first frame 3 by a support member 10a. By detecting the colored region (marker) of the position detection disk 24 by the position detection sensor 10, the first permanent sensor 3 is used. The rotational position (rotational angle) of the magnets 7 and 7a is specified. By specifying the rotational position (rotational angle) of the first permanent magnets 7 and 7a in this way, the timing of energizing the motor electromagnet 8 is determined. The first frame 3, the support member 3a, the spacer 60, and the support member 10a are made of a non-metallic material, for example, synthetic resin.

  The shaft 6 passes through the center of the first disks 21 and 22, the disk 23, and the position detection disk 24, and the first disks 21 and 22, the disk 23, and the position detection disk 24 pass through the shaft 6. Are fixed and rotate integrally as the first rotating body 2. Further, as shown in FIG. 1, the film 11 is attached to the peripheral portion of the first rotating body 2 so as to extend over the entire peripheral portions of the first disk 21, the first disk 22, and the disk 23. It has been. The air inside the first rotating body 2 is sealed by the film 11. Accordingly, since the internal air rotates together with the first rotating body 2 when the first rotating body 2 rotates, the first permanent magnets 7 and 7a and the like do not receive air resistance due to the rotation. Therefore, the air resistance of the 1st rotary body 2 can be reduced and the rotation efficiency by the side of the motor of the motor generator 1 can be improved. The film 11 is a material that does not affect the action and reaction of the electromagnetic force between the first permanent magnets 7 and 7a and the motor electromagnet 8, and is preferably thin. For example, a synthetic resin film or the like is used. be able to.

  As shown in FIGS. 1 and 2, the motor electromagnet 8 is a concentrated winding in which a winding 81 is wound around a substantially U-shaped magnetic core 80. In the motor electromagnet 8, when current flows through the winding 81, magnetic poles having different polarities are formed at both ends of the magnetic core 80. The windings 81 of the motor electromagnet 8 are appropriately connected in series, in parallel or in series and parallel, and DC power is supplied from the storage battery 13 to the two terminals in accordance with a command from the control circuit 12.

  As shown in FIGS. 1 and 2, the motor electromagnet 8 includes two sets of first permanent magnets 7, 7 a each having two magnetic poles provided in two stages on two first disks 21, 22. Are arranged with a predetermined gap length. As described above, the polarity of the magnetic pole of the motor electromagnet 8 and the polarity of the magnetic pole surface of the first permanent magnet 7 facing each magnetic pole of the motor electromagnet 8 are the same. Between one disk 21 and the other first disk 22, the polarity of the magnetic pole surface of the first permanent magnet 7 provided on one first disk 21 and the other first disk 22 are provided. Further, the polarity of the first permanent magnet 7a is reversed. Thus, on the motor (motor) side of the motor generator 1, the first rotating body 2 is fixed to the first permanent magnet 7 fixed to one first disk 21 and the other first disk 22. The first permanent magnet 7a is provided to form a two-stage structure, the motor electromagnet 8 is U-shaped, and each of the two magnetic poles corresponds to the two-stage first permanent magnet 7 and the permanent magnet 7a. I am letting. Thus, by using both the magnetic fluxes of the first permanent magnet 7 and the permanent magnet 7a to rotate the first rotating body 2, the conversion efficiency of the energy from the electric power of the motor generator 1 to the motive power is increased. Can be improved.

  The motor electromagnet 8 includes a straight line (not shown) connecting the center of the motor electromagnet 8 to the center O of the first disks 21 and 22 (first rotating body 2), and a magnetic flux central axis of the motor electromagnet 8. The angle β intersecting with (not shown) is fixed to the first frame 3 so that 0 ° <β ≦ 20 ° when viewed from the center O direction of the first disk 21. By making the angle β in this way, an effect that the θ-torque characteristic described later changes as compared with the case where β = 0 is obtained. 1 and 2 show a state where β = 0.

  The first frame 3 rotatably supports the first rotating body 2 with the shaft 6 serving as an axis, and fixes the motor electromagnet 8 and the position detection sensor 10, as shown in FIG. Two plate-like members connected to each other at a predetermined interval. The two plate-like first frames 3 are larger than the maximum diameter of the first rotating body 2, that is, the diameter of the position detection disk 24. In addition, although not shown, a bearing is provided at a portion that supports the shaft 6 of the first frame 3.

  As the above-described position detection sensor 10, any sensor can be used as long as it can detect the position (rotation angle) of the position detection disk 24 that rotates together with the first disk 21. For example, a photo interrupter can be used. The position detection sensor 10 is connected to the control circuit 12 for supplying power from the storage battery (DC power supply) 13 to the winding 81 of the motor electromagnet 8, and the timing of supplying power to the winding 81 of the motor electromagnet 8. Is supplied to the control circuit 11. The position detection sensor 10 according to the present embodiment controls a detection signal indicating that a transparent area is detected only while a transparent area (a portion that is not a colored area (marker)) of the position detection disk 24 is detected. 12 to send. The control circuit 12 supplies DC power from the storage battery 12 to the winding 81 of the motor electromagnet 8 at a timing according to reception of the detection signal from the position detection sensor 10. Specifically, the control circuit 12 supplies power to the winding 81 of the motor electromagnet 8 by turning on a switch (not shown), for example, while the photo interrupter as the position detection sensor 10 receives an optical signal. The power supply is stopped by turning off the switch while the optical signal is not received.

  The colored region (marker) described above is provided in the ring-shaped large diameter portion of the position detection disk 24 protruding from the periphery of the first disk 22. When the position of the colored region is adjusted and the colored region is detected by the position detection sensor 10, when power is supplied to the winding 81 of the motor electromagnet 8, the first rotating body 2 (first disk 21). Torque in the reverse rotation direction (clockwise direction in FIG. 2) can be generated, and the position detection sensor 10 detects the colored region (marker) and stops the power supply to the winding 81 of the motor electromagnet 8. Thus, the generation of torque in the reverse rotation direction of the first rotating body 2 can be prevented. Although the control circuit 12 will not be described in detail, the energy of the winding 81 of the motor electromagnet 8 is not consumed by resistance, but is preferably a type that regenerates to the power source. Thus, a circuit using only two self-extinguishing elements which are commonly used can be obtained.

  Next, the configuration on the generator side of the motor generator 1 will be described. As shown in FIGS. 1 and 3, the second rotating body 4 provided on the generator side includes two second disks 41, 42 on a shaft 6 that is coaxial with the rotating shaft of the first rotating body 2. And a single disk 43 are rotatably fixed to each other at a predetermined interval through a spacer 60. Similar to the first disks 21 and 22, four second permanent magnets 14 and 14 a are provided at equal intervals on one surface of each of the second disks 41 and 42. On the other hand, four power generation electromagnets 9 are fixed to the second frame 5 by the second support member 5a corresponding to each of the four sets of the second permanent magnets 14 that form one set. ing. In the electromagnet 9 for power generation, one magnetic pole corresponds to the permanent magnet 14 (one of two permanent magnets 13) of the second disk 41, and the other magnetic pole of the power generation electromagnet 9 is the other. This corresponds to the permanent magnet 14a of the second disk 42 (the other of the two permanent magnets 14).

  The second permanent magnet 14 is a flat plate having magnetic poles formed on the front surface and the back surface, and is formed wider than the first permanent magnet 7. Similarly to the first permanent magnet 7, the second permanent magnet 14 is also formed of a neodymium rare earth magnet or the like. Thus, by using the 2nd permanent magnet 14 by which the N pole and the S pole were formed in the surface and the back surface, each magnetic pole surface becomes wide and it can lengthen the power generation time as a generator. Further, as shown in FIG. 1, each of the first permanent magnets 14 and 14 a is also embedded in the second disks 41 and 42 by about several millimeters. The method for fixing the second permanent magnets 14 and 14a is not particularly limited, and may be fixed to the second disks 41 and 42 using metal fittings or the like.

  Moreover, as shown in FIG. 3, each 2nd permanent magnet 14 and 14a is the center of the 2nd permanent magnet 14 and 14a from the center O of 2nd disk 41 and 42 (2nd rotary body 4), respectively. The angle formed by the straight line L3 passing through Q and the magnetic pole direction of the second permanent magnets 14 and 14a, that is, the normal line L4 on the front or back surface of the second permanent magnets 14 and 14a, is the second disk 41. , 42 is fixed to be 0 °, that is, the straight line L3 and the straight line L4 overlap each other. Thereby, the power generation time can be further increased. Note that the second permanent magnets 14 and 14a have the polarity of the magnetic pole surface in the outer direction of the second disks 41 and 42 and the polarity of the magnetic pole facing the second disks 41 and 42 of the electromagnet 9 for power generation. It is the same.

  Also, four magnetic poles in the outer direction (or the inner direction) of the second permanent magnet 14 and the second permanent magnet 14a provided in each of the second disk 41 and the second disk 42 on the other side. The polarity of the surface is reversed. In other words, the second permanent magnet 14 provided on one second disk 41 has the N-pole magnetic pole surface facing the outside of the disk 41 and the second permanent magnet 14 provided on the other second disk 42. In the permanent magnet 14a, the pole face of the S pole faces the outside of the disk 42. This is because the polarities of the two magnetic poles of the power generation electromagnet 9 are different. One magnetic pole of one power generation electromagnet 9 faces the magnetic pole surface outside the second permanent magnet 14 of one second disk 41, and the other magnetic pole of the power generation electromagnet 9 is the other second disk. It faces the magnetic pole surface outside the second permanent magnet 14a. Therefore, the polarity of the magnetic pole surface of the first permanent magnet 14 of one second disk 41 facing the one magnetic pole of one power generation electromagnet 9 and the other magnetic pole of the power generation electromagnet 9 facing the other magnetic pole. This is different from the polarity of the magnetic pole face of the second permanent magnet 14a of the second disk 42. The two second disks 41 and 42 are overlapped and fixed by the spacer 60 so that the circumferential positions of the second permanent magnets 14 and 14a included in each of the second disks 41 and 42 are the same. Therefore, on the generator side of the motor generator 1, two sets of the second permanent magnets 14 and 14a are provided, and a total of eight second permanent magnets 14 and 14a are provided. On the other hand, the number of generator electromagnets 9 on the generator side of the motor generator 1 is four.

  The shaft 6 passes through the center of the second disks 41, 42 and the disk 43, and the second disks 41, 42 and the disk 43 are fixed to the shaft 6, and the second rotating body 4. Rotate as a unit. In addition, since the 2nd rotary body 4 is being fixed to the shaft 6 coaxial with the 1st rotary body 2, so that the 2nd rotary body 4 may also rotate, when the 1st rotary body 2 rotates. It has become. As shown in FIG. 1, the film 11 is attached to the peripheral portion of the second rotating body 4 so as to extend over the entire peripheral portions of the second disc 41, the second disc 42, and the disc 43. The air inside the second rotating body 4 is sealed by the film 11. Therefore, since the internal air rotates together with the second rotating body 4 when the second rotating body 4 rotates, the second permanent magnets 14 and 14a and the like do not receive air resistance due to the rotation. Therefore, the air resistance of the 2nd rotary body 4 can be decreased and the rotation efficiency by the side of the generator of the motor generator 1 can be improved.

  Similarly to the motor electromagnet 8, the power generating electromagnet 9 is a concentrated winding in which a winding 91 is wound around a U-shaped magnetic core 90. The electromagnet 9 for power generation corresponds to the second permanent magnets 14 and 14a provided in two stages on the two second disks 41 and 42 at both ends of the U-shaped magnetic core 90, They are arranged with a predetermined gap length. In the power generation electromagnet 9, the magnetic field around the winding 91 including the magnetic core 90 changes in accordance with the second permanent magnets 14 and 14 a that are moved by the rotation of the second rotating body 4, thereby electromagnetic induction. As a result, an induced electromotive force is generated at both ends of the winding 91. Therefore, the winding 91 is an AC voltage output winding. Further, the windings 91 of the power generation electromagnet 9 are appropriately connected in series, parallel or in series and configured as a single-phase winding or a multi-phase winding. Connected to AC power consuming device. The AC voltage can be rectified and connected to a DC power consumption device as a DC voltage.

  As shown in FIGS. 1 and 3, on the power generation side of the motor generator 1, there are two stages of two second disks 41 and 42 between the windings 91 of the four power generation electromagnets 9. The air core coils 15 are provided two by two with a predetermined gap length so as to correspond to the second permanent magnets 14 and 14a provided in the above. Although not shown in detail in FIG. 1 for the sake of explanation, the air-core coil 15 is also fixed to the second support member 5 a in the same manner as the power generation electromagnet 9.

  In the air-core coil 15, induction is caused by electromagnetic induction caused by the magnetic field around the air-core coil 15 changing according to the second permanent magnets 14 and 14 a that are moved by the rotation of the second rotating body 4. Electric power is generated. A part of the generated induced electromotive force is charged into the storage battery 13 by rectifying AC power into DC power via, for example, a rectifier (not shown). Thereby, the power consumed by the storage battery 13 that supplies DC power to the motor electromagnet 8 can be suppressed. In addition, since the air-core coil 15 is used, unlike the case where there is a normal iron core, there is no resistance and power can be taken out without load, which is efficient. In addition, you may make it utilize electric power other than the electric power utilized for the charge of the storage battery 13 for various alternating current power consumption apparatuses, such as an alternating current lamp and an alternating current motor, for example.

  Hereinafter, activation of the motor generator 1 of the present invention will be described. As described above (see FIG. 2), the first permanent magnets 7 and 7a are located at the center P of the first permanent magnets 7 and 7a from the center O of the first disks 21 and 22 (first rotating body 2). The angle α at which the straight line L1 passing through and the direction of the magnetic poles of the first permanent magnets 7 and 7a, that is, the normal line L2 in the normal direction on the front or back surface of the first permanent magnets 7 and 7a intersects. , 22, 0 ° <α ≦ 60 °. When the inclination of the first permanent magnets 7 and 7a is made in this way, the forward rotation direction (counterclockwise in FIG. 3) of the first rotating body 2 (first disks 21 and 22) from the center of the electromagnet 8 for motors. When the mechanical angle to the center of the first permanent magnet 7, 7 a measured in the direction of () is θ and power is not supplied to the winding 81 of the motor electromagnet 8, the magnetic core 80 and the first permanent magnet 7, 7 a If the detent torque (cogging torque), which is the torque in the positive rotation direction generated by the attraction force between, is T, the θ-T characteristic is as shown in FIG. As can be seen from FIG. 4, when θ = 0 °, that is, when the center of the first permanent magnet 7 is located in front of the center of the motor electromagnet 8, the detent torque becomes 0 and the first disk 21 stops. It is a stable equilibrium point.

  On the other hand, when a direct current of 1.90 A is supplied to the winding 81 of the motor electromagnet 8 by using, for example, a DC power supply (storage battery) 13, it is generated between the motor electromagnet 8 and the first permanent magnet 7. If the electromagnetic torque in the positive rotation direction of the first disk 21 is T, the θ-T characteristic is as shown in FIG. When the current supplied to the motor electromagnet 8 is changed, the stable equilibrium point and the unstable equilibrium point change. The stable equilibrium point and the unstable equilibrium point are one position (point) where the position of the first permanent magnets 7 and 7a relative to the motor electromagnet 8 is in a stable equilibrium state and one position where the first permanent magnets 7 and 7a are in an unstable equilibrium state. (Dots). The stable equilibrium state and the unstable equilibrium state are states in which the attractive force and the repulsive force of the motor electromagnet 8 and the first permanent magnet 7 are balanced. In the stable equilibrium state, even if the first disk 21 rotates in any direction, a force opposite to the rotation direction is applied by the magnetic force between the motor electromagnet 8 and the first permanent magnet 7, and the stable equilibrium state is restored. . On the other hand, in the unstable equilibrium state, if the first disk 21 rotates in any direction, a force in the rotating direction is applied by the magnetic force of the motor electromagnet 8 and the first permanent magnet 7, and the first disk 21 is unstable again. There is no return to equilibrium.

  As can be seen from FIG. 5, θ = −20 ° and θ = 70 ° are stable equilibrium points, and θ = −80 ° and θ = 10 ° are unstable equilibrium points. The angle width at which the electromagnetic torque T is negative is 30 °, and the angle width at which T is positive is 60 °. Since the average of T is zero, as can be seen from FIG. 5, the angle width is narrow and the absolute value of T is large in the portion where T is negative. Therefore, T where T is negative is referred to as “large value narrow angle torque”. On the other hand, in the portion where T is positive, the angle width is wide and the absolute value of T is small. Therefore, the electromagnetic torque T where T is positive is referred to as “small value wide angle torque”.

  Here, a case where a small value wide angle torque is used is considered. FIG. 6 shows the first permanent magnet 7 and the motor electromagnet in a stable equilibrium state when the motor electromagnet 8 is not supplied with power (that is, the first disks 21 and 22 are stopped with zero detent torque). 8 is an explanatory view showing the positional relationship between the colored region and the transparent region of the position detection disk 24 and the position detection sensor 10 in a straight line. In FIG. 6, the angle β is an angle marked on a stator such as the first frame 3 with the front of the motor electromagnet 8 being 0 °, and the first rotating body 2 (the first disk 21). , 22) is the positive direction rotation of the rotor. Further, the normal rotation region and the reverse rotation region are fixed to the motor electromagnet 8, that is, fixed with respect to the angle β. When the first permanent magnets 7 and 7a move in response to the rotation of the first disks 21 and 22 and are positioned in the areas, the positive rotation area is moved to the first disks 21 and 22 in the electromagnetic direction in the positive rotation direction. This is a region where torque T is generated. That is, the positive rotation region in FIG. 6 corresponds to the angle range of θ in which “small value wide angle torque” is generated in FIG. The reverse rotation area is in the reverse rotation direction to the first disks 21 and 22 when the first permanent magnets 7 and 7a move in accordance with the rotation of the first disks 21 and 22 and are positioned in the areas. This is a region where the electromagnetic torque T is generated. That is, the reverse rotation region in FIG. 6 corresponds to the angle range of θ in which “large value narrow angle torque” is generated in FIG. In FIG. 6, the left direction of the drawing is the direction of the positive rotation of the first disk 21, and when the first permanent magnet 7 moves to the left, the colored area and the transparent area of the position detection disk 24 also move to the left. Further, the angle width of the normal rotation area and the angle width of the transparent area are the same 60 °, and the angle width of the reverse rotation area and the angle width of the coloring area are the same 30 °. The forward rotation region and the reverse rotation region, and the transparent region and the coloring region are continuous, the normal rotation region and the transparent region exist at intervals of 30 °, and the reverse rotation region and the coloring region exist at intervals of 60 °. . The position detection sensor 10 is in the colored region when the first permanent magnets 7 and 7a are located in the reverse rotation region, and the position detection sensor 10 is located when the first permanent magnets 7 and 7a are located in the positive rotation region. The position detection disk 24 and the position detection sensor 10 are set so that the detection sensor 10 is in the transparent region. In the example of FIG. 6, the position detection sensor 10 is located at a place where β = 50 °.

  As can be seen from FIG. 6, in the stable equilibrium state where the motor electromagnet 8 is not supplied with power, the first permanent magnet 7 is located in the reverse rotation region, so that the location where the position detection sensor 10 of the position detection disk 24 senses is colored. It is an area. Therefore, since the detection signal is transmitted from the position detection sensor 10 to the control circuit 12, the control circuit 12 does not supply the electric power from the storage battery 13 to the motor electromagnet 8. Therefore, in order to start the motor side of the motor generator 1 by rotating the first disk 21 from a stable equilibrium state where the motor electromagnet 8 is not supplied with power, a certain device is required. The device for starting the motor side of the motor generator 1 can be broadly divided into a first method for moving the stable equilibrium point at the time of non-power feeding to the positive rotation region, and the first permanent magnet 7 at the time of starting. There is a second method for forcibly moving to the positive rotation region.

  The first method of moving the stable equilibrium point when no power is supplied to the positive rotation region is that no power is supplied to the winding 81 of the electromagnet 8 for the motor and the first disks 21 and 22 are in a stable equilibrium state where the detent torque is zero. When the supply of power to the winding 81 of the motor electromagnet 8 is started, the positional relationship between the motor electromagnet 8 and the first permanent magnet 7 when the motor is stopped at the first discs 21 and 22 is determined. Next, the position of the adjacent electromagnet 8 (8a) for the motor is set to the current position, that is, for the motor so that the positive torque is continuously generated by a predetermined rotation angle of the first disks 21 and 22. By moving the electromagnet 8 from a position 90 ° away from the electromagnet 8, the detent torque (θ-T characteristic) is changed so that the first permanent magnets 7 and 7a are positioned in the positive rotation region in a stable equilibrium state. . If the first permanent magnets 7 and 7a are located in the positive rotation region, the sensing position of the position detection sensor 10 becomes a transparent region, so that power supply is started and the first disks 21 and 22, that is, the motor of the motor generator 1. The side can be activated and rotated forward.

  For example, FIG. 6 shows that the first permanent magnet 7 in the vicinity of the motor electromagnet 8 is positioned at β = 11 ° in a stable equilibrium state by changing the detent torque (θ-T characteristic). As described above, the first permanent magnets 7 and 7a are included in the forward rotation region, and the sensing position of the position detection sensor 10 is included in the transparent region. In the positive rotation direction of the first disk 21, a positive rotation region continues to exist over 70 ° -11 ° = 59 °, and similarly, a transparent region continues to exist over 59 °. Accordingly, power is supplied to the motor electromagnet 8 only while the first disks 21 and 22 are rotated by 59 °, and the first disks 21 and 22 are rotated forward. When the rotation angle of the first disks 21 and 22 reaches 60 ° and β = 71 °, the first permanent magnets 7 and 7a are included in the reverse rotation region. However, since the sensing position of the position detection sensor 10 is also included in the colored region, power supply to the motor electromagnet 8 is stopped. Then, the electromagnetic torque T by the motor electromagnet 8 becomes zero, and the detent torque T appears. The detent torque T in the reverse rotation region is almost a positive value, and the first disks 21 and 22 have a moment of inertia, so the first disks 21 and 22 continue to rotate forward. After passing through the reverse rotation region with an angular width of 30 °, the first permanent magnets 7 and 7a again enter the positive rotation region with an angular width of 60 °, so that the first disks 21 and 22 continue to rotate forward. In order to position the first permanent magnets 7 and 7a in the vicinity of the motor electromagnet 8 at β = 11 ° in a stable equilibrium state of the detent torque T that does not supply power to the motor electromagnet 8, both adjacent motor electromagnets 8 ( 8a) may be moved by 22 ° in the forward rotation direction of the first disks 21 and 22, respectively. That is, the motor electromagnet 8 (8a) may be moved from the position β = 90 ° to the position β = 112 °. However, β = 112 ° is appropriate when there are two motor electromagnets 8 and two motor electromagnets 8 (8a).

  On the other hand, as a second method for forcibly moving the first permanent magnet 7 to the positive rotation region at the time of startup, power is temporarily supplied to the motor electromagnet 8 regardless of the detection of the colored region by the position detection sensor 10. There is a method (2-1) and a method (2-2) in which a narrow transparent region is provided in the colored region.

  In the method (2-1) of temporarily supplying power to the motor electromagnet 8 regardless of the detection of the colored region by the position detection sensor 10, the control circuit 12 that supplies the DC power of the storage battery 13 to the motor electromagnet 8 is used. For example, it is realized by adding a control circuit (not shown) for supplying DC power to the motor electromagnet 8 only for a predetermined period when the push button B (not shown) is pressed. More specifically, when the motor generator 1 is activated, the first disks 21 and 22 (which are stopped in a stable equilibrium state shown in FIG. By temporarily rotating the first permanent magnets 7 and 7a) in the reverse direction, the first permanent magnets 7 and 7a located in the reverse rotation region are moved to the normal rotation region and are directly rotated in the reverse rotation direction. Without reaching the area, the first disks 21 and 22 are turned to the normal rotation within the normal rotation area. That is, when the push button B is pressed, the first disks 21 and 22 rotate reversely, and the first permanent magnets 7 and 7a reach the normal rotation region, and the first permanent magnets 7 and 7a Electric power is supplied to the motor electromagnet 8 only for a period (rotation angle) necessary for the first disks 21 and 22 to rotate in the forward rotation while in the forward rotation region.

  In the method (2-2) of providing a narrow transparent region in the colored region, power is not supplied to the winding 81 of the motor electromagnet 8 and the first disk 21 is stopped in a stable equilibrium state of the detent torque T. A transparent region having a predetermined width is provided in the position detection disk 24 at the sensing position of the position detection sensor 10 in the state. That is, as shown in FIG. 7, a transparent window region R having a predetermined angular width is provided in a colored region having an angular width of 30 °. The transparent window region R has a width from the center sensing position of the position detection sensor 10 in the positive rotation direction of the first disk 22 (position detection disk 24). As described above, since the transparent window region R is located at the sensing position of the position detection sensor 10, when the control circuit 12 is operated, the winding 81 of the motor electromagnet 8 is immediately supplied with power for a certain period (rotation angle). The By supplying power to the electromagnet 8 for the motor in this way, the first disks 21 and 22 (first permanent magnets 7 and 7a) are rotated in the reverse direction, and the first permanent magnet 7 located in the reverse rotation region. , 7a move to the normal rotation region, and the first disk 21 is rotated to the normal rotation in the normal rotation region without reaching the reverse rotation region in the reverse rotation direction. Therefore, the angular width of the transparent window region R is such that the first disks 21 and 22 rotate reversely so that the first permanent magnets 7 and 7a reach the normal rotation region, and the first permanent magnets 7 and 7a have their normal rotations. This is the angular width in which power is supplied to the motor electromagnet 8 only during the period necessary for the first disks 21 and 22 to rotate in the forward direction while in the rotation region. During normal rotation, the transparent window region R is not detected due to the poor transient characteristics of the position detection sensor 10, and no control operation occurs.

  Next, a case where a large value narrow angle torque is used will be considered. In this case, in FIG. 6 showing the setting of the position detection disk 24 and the position detection sensor 10 when the small value wide angle torque is used, the colored area of the position detection disk 24 is changed to a transparent area and the transparent area is changed to a colored area. That's fine. FIG. 8 shows how this change is made. FIG. 8 shows a stable equilibrium state when power is not supplied to the motor electromagnet 8 (that is, a state where the detent torque is zero and the first disks 21 and 22 are stopped). As can be seen from FIG. 8, since the first permanent magnets 7 and 7a are present in the reverse rotation region and the position detection sensor 10 is in the transparent region, a detection signal is transmitted from the position detection sensor 10 to the control circuit 12, The control circuit 12 supplies power from the storage battery 13 to the motor electromagnet 8. Therefore, the motor generator 1 rotates in the reverse rotation direction. Thus, when utilizing the large value narrow angle torque, a device for starting the motor generator 1 is not particularly required. However, when the arrangement of the electromagnet 8 (8a) for the motor is shifted from the fixed position, care should be taken so that the first permanent magnets 7 and 7a do not move out of the reverse rotation region in the stable equilibrium state when no power is supplied. good.

  According to the motor generator 1 of the present invention, the first rotating body 2 (first disks 21 and 22) on the motor side is caused to function as a motor and is rotated to be fixed to the coaxial shaft 6. The generator-side second rotating body 4 (second disks 41, 42) rotates. As a result, the magnetic fields around the power generation electromagnet 9 and the air-core coil 15 provided on the generator change by the movement of the second permanent magnets 14 and 14a provided on the second disks 41 and 42, respectively. An induced electromotive force is generated by electromagnetic induction. Further, in the motor generator 1 of the present invention, the power generated by the power generation electromagnet 9 is used for an AC power consumption device, and a part of the power generated by the air-core coil 15 is stored in the storage battery 13. .

  In this embodiment, four motor electromagnets 8 and four power generation electromagnets 9 are provided on the motor side and the power generation side of the motor generator 1, respectively, but this number is not limited to this, and can be changed as appropriate. You may do it. However, it is preferable that the number is such that the adjacent electromagnets 8 for motors or the adjacent electromagnets 9 for generation do not electromagnetically couple. Further, in the above-described embodiment, the motor side and the power generation side are configured to include the first disks 21 and 22 and the second disks 41 and 41 (two stages), respectively. The second disk 41 may be one (one stage). However, in order to improve the energy efficiency as the motor of the motor generator 1, it is preferable to provide two each.

  Furthermore, in the above-described embodiment, power is supplied to the winding 81 of the motor electromagnet 8 at the timing when the electromagnetic torque T takes a positive value in FIG. 5, that is, when the small value wide angle torque is generated. However, the present invention is not limited thereto, and power may be supplied to the winding 81 of the motor electromagnet 8 at a timing at which the electromagnetic torque T takes a negative value, that is, a timing at which a large value narrow angle torque is generated.

  The embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The motor generator according to the present invention can be effectively used as a motor generator or the like for efficiently converting DC power into AC power and supplying AC power to household electric appliances and the like.

DESCRIPTION OF SYMBOLS 1 Generator 2 1st rotary body 21 and 22 1st disk 3 1st flame | frame 4 2nd rotary body 41 and 42 2nd disk 5 2nd flame | frame 6 Shaft (rotating shaft)
7, 7a First permanent magnet 8 Electromagnet 80 for motor Magnetic core (first magnetic core)
81 windings (first winding)
9 Electromagnet 90 for power generation Magnetic core (second magnetic core)
91 winding (second winding)
13 Storage battery (DC power supply)
14, 14a Second permanent magnet 15 Air-core coil

Claims (4)

A first frame;
A first disk rotatably attached to the first frame via a rotation shaft;
A second frame;
A second disk rotatably attached to the second frame via the rotating shaft;
A plurality of first permanent magnets arranged at equal intervals along the circumferential direction on the first disk and having magnetic poles formed on the front and back surfaces;
A plurality of wide plate-like second permanent magnets arranged at equal intervals along the circumferential direction on the second disk and having magnetic poles formed on the front and back surfaces;
A first magnetic core fixed to the first frame corresponding to the plurality of first permanent magnets; and a first winding wound around each of the first magnetic cores. A plurality of electromagnets for the motor;
A storage battery for supplying DC power to the first winding to rotate the first disk;
A second magnetic core fixed to the second frame corresponding to the plurality of second permanent magnets, and a second magnetic core wound around the second magnetic core and connected to a power consuming device On the second disk that rotates through the rotation shaft by rotating the first disk by applying a magnetic force to the plurality of first permanent magnets by the motor electromagnet. A plurality of electromagnets for generating an induced electromotive force by changing a magnetic field around the second winding in accordance with the movement of the plurality of second permanent magnets formed in
An air-core coil respectively disposed between the plurality of power generation electromagnets,
In the first permanent magnet, an angle formed by a straight line passing through the center of the first disk and the center of the first permanent magnet and a normal line at the center of the magnetic pole surface of the first permanent magnet is 0. By being arranged to be larger than 60 ° and smaller than 60 °,
Detent generated by the attractive force between the first magnetic core and the first permanent magnet when a constant DC current is continuously fed to the first winding when no power is fed to the first winding. The rotation angle of the first permanent magnet measured with respect to the first magnetic core with respect to the first permanent magnet in a stable equilibrium operation state where the torque becomes zero, and the current of the first winding And a characteristic curve of electromagnetic torque generated by the first permanent magnet, when a large-value narrow-angle torque having a large value and a narrow rotation angle range for rotating the first disk in the reverse direction is generated, or the first The DC power is supplied from the storage battery to the first winding in any one of the cases where a small value wide angle torque with a wide rotation angle range and a small value is generated.
A motor generator, wherein at least part of an induced electromotive force generated in the air-core coil in accordance with the movement of the second permanent magnet accompanying the rotation of the second disk is stored in the storage battery.   In the second permanent magnet, an angle formed by a straight line passing through the center of the second disk and the center of the second permanent magnet and a normal line at the center of the magnetic pole surface of the second permanent magnet is 0. The motor generator according to claim 1, wherein the motor generator is arranged so as to be at an angle. Two each of the first disk and the second disk are fixed to the rotating shaft,
The first permanent magnet disposed on one of the first disks and the first permanent magnet disposed on the other first disk have opposite polarities,
The second permanent magnet disposed on one of the second disks and the second permanent magnet disposed on the other second disk have opposite polarities,
The first magnetic core has one end corresponding to the first permanent magnet disposed on one of the first disks, and the other end disposed on the other first disk. Fixed to correspond to the first permanent magnet,
The second magnetic core has one end corresponding to the second permanent magnet disposed on one of the second disks, and the other end disposed on the other second disk. The motor generator according to claim 1, wherein the motor generator is fixed so as to correspond to the second permanent magnet.   The first frame, the second frame, the first disk, and the second disk are each formed of a non-metallic material. The motor generator described.

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