JP2014082808A - Electromagnetic rotary drive unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem of a conventional device where two fixed electromagnets are arranged for one rotary permanent magnet that only one of magnetic force generated at both ends of the fixed electromagnet can be utilized, because one rotary permanent magnet is rotated by two fixed electromagnets.SOLUTION: In an electromagnetic rotary drive unit, a coil 3 is wound around an iron core 2 as a fixed electromagnet 1 for converting the magnetic force, and the polarity of fixed electrodes 5, 6 at both ends of the iron core 2 is converted by converting the conduction direction to the coil 3. Furthermore, rotary permanent magnets 15, 16, 17, 18 consisting of permanent magnets 8, 9, having polarities inverting alternately as the fixed electrodes 5, 6 rotate, are provided rotatably.

Description

  The present invention relates to an electromagnetic rotary drive device.

  A rotating permanent magnet composed of a permanent magnet is provided in the housing so as to be rotatable. A coil is wound around the inner wall of the housing as a fixed electromagnet to be converted into a magnetic force. Patent Document 1 or 2 discloses an electromagnetic rotation driving device that converts a magnetic force and rotates a rotating permanent magnet with respect to a fixed electromagnet by a magnetic attractive force and a magnetic repulsive force acting between an iron core and a permanent magnet. Known as described.

JP 2010-265805 A JP 2012-157143 A

  In this conventional apparatus, two fixed electromagnets are arranged with respect to one rotating permanent magnet, and a magnetic attraction force and magnetic force acting between two iron cores and one rotating permanent magnet. Since the rotating permanent magnet is rotated with respect to the fixed electromagnet by the repulsive force, there is a problem that only one magnetic force generated at both ends of the iron core of the fixed electromagnet can be used.

  Therefore, as described in claim 1 of the present invention, as a fixed electromagnet whose magnetic force is to be converted, a coil is wound around an iron core, and the energization direction to the coil is converted or turned on / off. Provided is an electromagnetic rotary drive device that converts the polarity of a fixed electromagnet and that is provided with rotating permanent magnets composed of permanent magnets whose polarities alternately change with rotation at both ends of the iron core of the fixed electromagnet. .

  According to a second aspect of the present invention, there is provided the electromagnetic rotary drive device according to the first aspect, wherein the rotary permanent magnet is displaced at the iron core end of the fixed electromagnet. Is.

  Further, as described in claim 3, in the electromagnetic rotary drive device according to claim 2, the iron core end portion of the fixed electromagnet is cut out in an arc shape, and one outer peripheral portion of the rotating permanent magnet faces the cutout portion. An electromagnetic rotary drive device provided as described above is provided.

  In addition, as described in claim 4, in the electromagnetic rotary drive device according to claim 1, 2, or 3, the outer peripheral portion of the rotating permanent magnet faces the side portion of the iron core end portion of the fixed electromagnet. An electromagnetic rotary drive device is provided.

  According to a fifth aspect of the present invention, there is provided the electromagnetic rotational driving device according to the fourth aspect, wherein a plurality of rotating permanent magnets are provided at the iron core end of the fixed electromagnet. Is.

  According to a sixth aspect of the present invention, there is provided the electromagnetic rotational driving device according to any one of the first to fifth aspects, wherein the stationary electromagnet is provided with a multifaceted columnar iron core end. To do.

  According to a seventh aspect of the present invention, in the electromagnetic rotational driving device according to the sixth aspect, the rotating permanent magnet is rotatably provided facing the multi-faced columnar iron core end portion of the fixed electromagnet. A rotational drive device is provided.

  Further, as described in claim 8, in the electromagnetic rotary drive device according to claim 7, two or more rotating permanent magnets are provided facing one side surface of the multi-faced columnar iron core end portion of the fixed electromagnet. An electromagnetic rotary drive device is provided.

  Further, as described in claim 9, in the electromagnetic rotary drive device according to claim 8, the rotating permanent magnet is rotated so as to face two parallel surfaces of the end face of the iron core of the polyhedral columnar shape of the fixed electromagnet. An electromagnetic rotary drive device provided freely is provided.

  Further, as described in claim 10, in the electromagnetic rotational drive device according to any one of claims 1 to 9, the rotation shafts of the plurality of rotating permanent magnets provided at the iron core end of the fixed electromagnet are integrated. The present invention provides an electromagnetic rotary drive device that is connected to a drive shaft.

  In addition, as described in claim 11, in the electromagnetic rotary driving device according to any one of claims 1 to 10, a coil having a winding start terminal and a winding end terminal is wound around the iron core of the fixed electromagnet in multiple times. The present invention provides an electromagnetic rotary drive device that can arbitrarily set connection between coils or connection to a power source.

  In addition, as described in claim 12, in the electromagnetic rotational drive device according to any one of claims 1 to 11, the electromagnetic rotation in which a reinforcing belt made of a non-magnetic material is provided on the rotational outer periphery of the rotating permanent magnet. A drive device is provided.

  Further, as described in claim 13, in the electromagnetic rotary drive device according to any one of claims 1 to 12, an electromagnetic type comprising a heat dissipating means for circulating a cooling fluid around the outer periphery of the coil of the fixed electromagnet. A rotational drive device is provided.

  According to the electromagnetic rotary drive device according to the present invention, as described in claim 1 of the present invention, as a fixed electromagnet to convert magnetic force, a coil is wound around an iron core, and the energization direction to the coil is changed. A structure in which the polarity of the fixed electromagnet is converted by conversion or on / off, and a rotating permanent magnet made of a permanent magnet whose polarity alternately changes with rotation at both ends of the iron core of the fixed electromagnet is rotatably provided Therefore, it is possible to provide a rotating permanent magnet as a rotor at both ends of the iron core of the fixed electromagnet, so that the magnetic force generated at both ends of the iron core of the fixed electromagnet is individually used by the magnetic force of the rotating permanent magnet. The magnetic energy can be effectively converted into driving energy.

  According to a second aspect of the present invention, the electromagnetic rotary drive device according to the first aspect has a configuration in which the rotating permanent magnet is displaced at the iron core end portion of the fixed electromagnet. The rotating permanent magnet can be rotated smoothly by breaking the balance between the attractive magnetic force and the repulsive magnetic force against the rotating permanent magnet at the end, and a plurality of rotating permanent magnets can be displaced and installed at the iron core end. There is an effect that can.

  Further, as described in claim 3, in the electromagnetic rotary drive device according to claim 2, the iron core end portion of the fixed electromagnet is cut out in an arc shape, and one outer peripheral portion of the rotating permanent magnet faces the cutout portion. By having the configuration provided as described above, there is an effect that the rotating permanent magnet can be arranged by being displaced to the iron core at the end of the iron core.

  In addition, as described in claim 4, in the electromagnetic rotary drive device according to claim 1, 2, or 3, the outer peripheral portion of the rotating permanent magnet faces the side portion of the iron core end portion of the fixed electromagnet. By having the configuration provided in the above, there is an effect that the rotating permanent magnet can be provided by being displaced in the outer peripheral portion of the end portion of the iron core.

  According to a fifth aspect of the present invention, in the electromagnetic rotary drive device according to the fourth aspect, the fixed electromagnet has a configuration in which a plurality of rotating permanent magnets are provided at the iron core end of the fixed electromagnet. The magnetic force generated at the end of the iron core can be effectively used by a plurality of rotating permanent magnets.

  In addition, as described in claim 6, in the electromagnetic rotary drive device according to any one of claims 1 to 5, by having a configuration in which a fixed electromagnet is provided with a multi-faced columnar iron core end portion, There exists an effect which can arrange | position a rotation permanent magnet freely including each direction of a rotating shaft with respect to each surface of a columnar iron core edge part.

  According to a seventh aspect of the present invention, in the electromagnetic rotary driving device according to the sixth aspect, the rotating permanent magnet is rotatably provided facing the end of the multi-faced columnar iron core of the fixed electromagnet. By having it, there exists an effect which can arrange | position a rotation permanent magnet arbitrarily for the number of the surface which a polyhedral columnar iron core edge part forms.

  Further, as described in claim 8, in the electromagnetic rotary drive device according to claim 7, two or more rotating permanent magnets are provided facing one side surface of the multi-faced columnar iron core end portion of the fixed electromagnet. By having such a configuration, there is an effect that it is possible to arrange rotating permanent magnets that are equal to or more than the number of surfaces formed by the end faces of the multi-faced columnar iron core.

  Further, as described in claim 9, in the electromagnetic rotary drive device according to claim 8, two rotating permanent magnets face each other on two parallel surfaces of the end face of the iron core of the fixed electromagnet. By having a structure in which magnets are rotatably provided, rotating permanent magnets having rotating shafts orthogonal to each other are arranged at the end of one iron core, and each rotating shaft is linked by a simple mechanism so that rotational force is applied to one axis. There is an effect that can be taken out collectively.

  Further, as described in claim 10, in the electromagnetic rotational drive device according to any one of claims 1 to 9, the rotation shafts of the plurality of rotating permanent magnets provided at the iron core end of the fixed electromagnet are integrated. By having the structure formed by being connected to the drive shaft, there is an effect that the rotational drive force of each rotating permanent magnet can be concentrated and utilized on one drive shaft.

  In addition, as described in claim 11, in the electromagnetic rotary driving device according to any one of claims 1 to 10, a coil having a winding start terminal and a winding end terminal is wound around the iron core of the fixed electromagnet in multiple times. By having a configuration in which connection between coils or connection to a power supply can be arbitrarily set, there is an effect that each coil can be energized, converted in energization direction, or distributed and equalized in resistance value. .

  According to a twelfth aspect of the present invention, in the electromagnetic rotary drive device according to any one of the first to eleventh aspects, a reinforcing belt made of a nonmagnetic material is provided on the outer periphery of the rotating permanent magnet. As a result, the rotating permanent magnet can be firmly fixed to the rotating shaft and stabilized.

  Further, as described in claim 13, in the electromagnetic rotary drive device according to any one of claims 1 to 12, a structure in which a heat dissipating means for circulating a cooling fluid is provided on the outer periphery of the coil of the fixed electromagnet. By having the coil, the coil can be cooled and the cooling fluid can be circulated to other structures and heated.

BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of one Example of this invention. The schematic explanatory drawing of the other Example of this invention. The schematic explanatory drawing of the other Example of this invention. The schematic explanatory drawing of the other Example of this invention. The schematic explanatory drawing of the Example which looked at FIG. 4a from the G arrow direction. The schematic explanatory drawing of the other Example of this invention. The schematic explanatory drawing of the Example which looked at FIG. 5a from the A arrow direction. The schematic explanatory drawing of one Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention. The schematic explanatory drawing of the other Example of the principal part of this invention.

  Hereinafter, an electromagnetic rotary drive device according to the present invention will be described with reference to the illustrated embodiment.

  In the embodiment shown in FIG. 1, reference numeral 1 denotes a fixed electromagnet whose magnetic force is to be converted at both extreme portions, and a coil 3 is wound around an intermediate portion of the iron core 2. Reference numeral 4 denotes a coil pressing plate provided on both sides of the coil 3. FIG. 1 shows a state in which the center of the iron core 2 is vertically cut along the longitudinal direction, and fixed electrode portions 5 and 6 are provided at both ends of the iron core 2 of the fixed electromagnet 1. The polarity N or S of the fixed electrode portions 5 and 6 at both ends of the iron core 2 is converted to the polarity S or N when the energization direction to the coil 3 is changed. In the case of the first embodiment, each fixed electrode portion 5, 6 is provided with an arc-shaped cutout portion 7 having a slightly longer upper part than a semicircle, and the polarity of the outer periphery changes in each cutout portion 7 with rotation. Rotating permanent magnets 10 and 12 each consisting of permanent magnets 8 and 9 that are alternately changed are rotatably provided.

  By changing the energization direction to the coil 3, the polarities N and S of the fixed electrode portions 5 and 6 at both ends of the iron core 2 are converted to S and N, respectively. In FIG. In the state of N, the permanent magnet 9 of magnetism N of the rotating permanent magnet 10 turning counterclockwise as indicated by the arrow A faces each other, and repulsive forces repelling each other act simultaneously. As a result of the permanent magnet 8 receiving the attractive force, the rotation of the rotating permanent magnet 10 continues.

  Similarly, the permanent magnet 8 of the magnetism S of the rotating permanent magnet 12 that rotates clockwise as indicated by the arrow B faces each other with the electrode of the left fixed electrode portion 6 in the S state, and repulsive forces that repel each other act. At the same time, the permanent magnet 9 having the polarity N at the next rotational position receives the attractive force, so that the rotation of the rotating permanent magnet 12 continues.

  When the energization direction to the coil 3 is changed, the polarity NS of the fixed electrode portions 5 and 6 at both ends of the iron core 2 is reversed, so the polarity of the left and right fixed electrode portions 5 and 6 in FIG. Since the polarities of the permanent magnets 8 and 9 of the parts 5 and 6 and the rotating permanent magnets 10 and 12 are alternately opposed, the rotating permanent magnets 10 and 12 continue to rotate in the A and B directions, respectively.

By having the above configuration, two rotating permanent magnets 10 and 12 that are rotors can be provided at both ends of the iron core 2 of the fixed electromagnet 1. There is an effect that the two rotors can be rotationally driven by effectively using the magnetic force.
Supply of input power to the coil 3 of the fixed electromagnet 1 is performed by a start circuit that lowers the input voltage and switches the energization direction at the base frequency at the start, and when the rotary permanent magnets 10 and 12 start to rotate, By shifting to an operation circuit that supplies voltage and high frequency input power, the rotating permanent magnets 10 and 12 can be rotated at high speed.

  In the embodiment of FIG. 1, the rotating permanent magnets 10 and 12 rotate integrally with the rotating shafts 11 and 13, respectively, and the permanent magnets 8 and 9 occupy the rotation circumference of the 360 degree arc by 180 degree arcs. Are provided on the outer periphery of the base shaft portion 14 made of a magnetic material. In FIG. 1, the permanent magnet 8 is configured such that the outer peripheral side is the S pole and the inner peripheral side is the N pole, and the permanent magnet 9 is configured such that the outer peripheral side is the N pole and the inner peripheral side is the S pole.

  In the case of the second embodiment shown in FIG. 2, almost all of the shape of the notch 7 provided in the fixed electrode portions 5 and 6 is slightly longer than the semicircular shape in the upper part of the first embodiment shown in FIG. Unlike the case where the upper magnetic force of the notch portion 7 becomes slightly strong, the shape of the notch portion 7 is composed of the arcuate portion 7a and the linear portion 7b, so that the magnetic force of the arcuate portion 7a of the notch portion 7 is strong. In contrast to this, the magnetic force of the linear portion 7b acts weakly, and has a configuration in which the linear portion 7b is displaced. As a result, the rotating permanent magnet is greatly displaced at the iron core end of the fixed electromagnet. It has a configuration. 2 is the same as that of FIG. 1, the same reference numerals as those in FIG. 1 are used, and the description thereof is omitted.

  In the case of Example 1 in FIG. 1, the rotating permanent magnets 10 and 12 including the permanent magnets 8 and 9 whose polarities on the outer periphery change alternately with rotation in the notches 7 are formed as arcuate fixed electrode portions 5 and 5. 6, the permanent magnets 8 and 9 are rotated by receiving the attraction force and the repulsion force almost evenly, so that they may receive the attraction force and the repulsion force in the reverse rotation direction. There is.

  On the other hand, in the case of Example 2 in FIG. 2, the rotating permanent magnets 10, 12 including the permanent magnets 8, 9 whose polarity alternately changes in accordance with the rotation in each notch portion 7 are fixed electrodes 5, 12. 6 is arranged to face the arcuate portion 7a having a strong magnetic force evenly but is displaced so as to be gradually separated from the linear portion 7b having a weak magnetic force. It will rotate by receiving an unbalanced suction force and a repulsive force that accelerate in the direction of rotation in the part. That is, in Example 2 of FIG. 2, since the attractive force and the repulsive force of the fixed electrode portions 5 and 6 act in the direction of accelerating the rotational force of the rotating permanent magnets 10 and 12, the attractive magnetic force with respect to the rotating permanent magnet at the iron core end portion. By rotating the repulsive magnetic force balance, the rotating permanent magnet can be rotated more smoothly.

  In the case of Example 3 shown in FIG. 3, the rotation shafts 19, 20, 21, and 22 are parallel to the side edges 5 a, 5 b and 6 a, 6 b of both ends 5, 6 of the iron core 2 of the four-sided columnar fixed electromagnet 1. Thus, four rotating permanent magnets 15, 16, 17, and 18 are rotatably provided. Since four rotating permanent magnets, which are rotors, can be provided at both ends 5 and 6 of the iron core 2 of the fixed electromagnet 1, the magnetic force generated at both ends of the iron core 2 of the fixed electromagnet 1 can be used effectively. Can do.

  In the case of illustration, in the state where the energization direction to the coil 3 is changed and the polarities of the fixed electrode portions 5 and 6 at both ends of the iron core 2 are reversed, the side edges 5a and 5b of the fixed electrode portion 5 have strong N Since the magnetic permanent magnet 8 has a magnetic force, the permanent magnet 8 of the south pole of the rotary permanent magnets 15 and 16 is strongly attracted, whereas the permanent magnet 9 of the north pole is strongly repelled, so , 16 will rotate in the direction of arrows C, D. Then, when the rotary permanent magnets 15 and 16 are rotated halfway, the energization direction to the coil 3 is changed, and the polarity of the fixed electrode portions 5 and 6 at both ends of the iron core 2 is reversed, so that the N-pole permanent magnet 9 Is attracted strongly, the S-pole permanent magnet 8 is strongly repelled, and the rotating permanent magnets 15 and 16 continue to rotate in the directions of the arrows C and D.

  Similarly, when the direction of energization to the coil 3 is changed and the polarities of the fixed electrode portions 5 and 6 at both ends of the iron core 2 are reversed, the side edges 6a and 6b of the fixed electrode portion 6 have strong S poles. Since the N-pole permanent magnet 9 of the rotating permanent magnets 17 and 18 is strongly attracted, the S-pole permanent magnet 8 is strongly repelled, and the rotating permanent magnets 17 and 18 are strongly attracted. 18 rotates in the direction of arrows E and F.

  Then, when the rotating permanent magnets 17 and 18 are rotated halfway, the energization direction to the coil 3 is changed, and in a state where the polarities of the fixed electrode portions 5 and 6 at both ends of the iron core 2 are reversed to N, the S pole is permanent. While the magnet 8 is strongly attracted, the N-pole permanent magnet 9 is strongly repelled, and the rotating permanent magnets 17 and 18 continue to rotate in the directions of arrows E and F.

In the third embodiment, the side edges 5a, 5b, 6a and 6b of the fixed electrode portions 5 and 6 have a stronger magnetic force than the side portions thereof, so that the rotating permanent magnets 15, 16, 17 and 18 are It is provided in a position where the balance of the strength of the magnetic force is different from that of the second embodiment. In the case of the third embodiment, when the rotational speed increases, a constant rotational speed can be maintained even if the action of the magnetic force in the acceleration rotational direction is small.
Further, the same components as those of the previous embodiment are denoted by the same reference numerals, and the description is saved.

  In the case of the embodiment shown in FIGS. 4 a and 4 b, four-sided columnar fixed electrode portions 25, 26 are provided in a T shape at both ends of the iron core 2 of the four-sided columnar fixed electromagnet 1. Rotating permanent magnets 27, 28, 29, and 30 are provided on the corner side edge portions 25a, 25b, 25c, and 25d, respectively, and similarly, the four corner side edge portions 26a, 26b, 26c, and the other fixed electrode portion 26 are provided. 26d is provided with rotating permanent magnets 31, 32, 33, and 34, respectively. Each rotating permanent magnet is arranged at a displaced position in which the balance of the strength of the magnetic force is different at the four side edge portions of the fixed electrode portion, and in the same way as in the third embodiment shown in FIG. It will rotate with the conversion. In this case, a total of eight rotating permanent magnets rotate in the directions of arrows G, H, I, and J, respectively. Reference numerals 23 and 24 denote rotating shafts of the rotating permanent magnet.

  5a and 5b, the side edge portions 25a, 25b, 25c, 25d and 26a on the four side surfaces of the fixed electrode portions 25, 26 at both ends of the iron core 2 of the quadrangular columnar fixed electromagnet 1 are shown. Rotating permanent magnets 27, 28, 29, 30 and 31, 32, 33, 34 are provided on 26b, 26c, 26d, respectively. Since each rotating permanent magnet is installed in a displaced state in which the balance of the strength of the magnetic force is different at the side edge portions of the four surfaces of the fixed electrode portion, as in the third embodiment shown in FIG. Along with the change of the energization direction, it rotates toward the electrode portion end face of the fixed electromagnet as indicated by arrows C and D and arrows E and F.

  In this case, a total of eight rotating permanent magnets will rotate. 5a and 5b, the fixed electromagnets 27, 28, 29, and 30 at one end 25 rotate in the same direction as arrows C and D toward the end surfaces of the electrodes, respectively. The rotating shafts 23a, 23b, 23c, and 23d that are orthogonal to each other can be connected to be linked by the bevel gear 35, and one of the rotating shafts 23b can be extended and connected to the drive unit 36 for use. In the figure, 37 is a clutch and 38 is a shaft joint. Since the fixed electromagnets 31, 32, 33, and 34 of the other end portion 26 also rotate in the same direction as arrows E and F toward the end surfaces of the electrode portions, the rotation shafts 23a and 23b that are orthogonal to each other are rotated. It can be connected so as to be interlocked by a bevel gear, and one of the rotation shafts 23b can be extended and connected to the drive unit 36 or the like.

  6 is a longitudinal side view of an embodiment of the rotating permanent magnet 40, 41 is a rotating shaft, 42 is a base shaft portion made of iron as a magnetic material, 43 is a permanent magnet provided by being bonded to the outer periphery of the base shaft portion 42, Reference numeral 44 denotes a rotor holding washer, 45 and 46 denote rotor assembly bolts and nuts, and 47 denotes a reinforcing belt made of a non-magnetic material provided on the outer periphery of the permanent magnet 43 for preventing the permanent magnet 43 from peeling off.

  FIG. 7 shows another embodiment of the rotating permanent magnet 40, in which four permanent magnets 43 a and 43 b having different magnetic poles are provided alternately on the outer periphery of the iron base shaft portion 42. A spacing member 48 made of a nonmagnetic material is provided between the permanent magnets 43a and 43b. A reinforcing belt 47 is provided on the outer periphery.

  In the embodiment of FIG. 8, eight permanent magnets 43a and 43b having different magnetic poles are provided on the outer periphery of the base shaft portion 42 alternately. A spacing member 48 made of a nonmagnetic material is provided between the permanent magnets 43a and 43b, and a reinforcing belt 47 is provided on the outer periphery. A lightweight shaft portion 49 made of a lightweight aluminum alloy is provided between the rotating shaft 41 and the iron base shaft portion 42. The lightweight shaft portion 49 is provided with a number of hollow holes 49a to reduce the weight.

  In the embodiment of FIG. 9, the coil 3 in FIGS. 5 a and 5 b is taken as an example, and the heat dissipating means 50 of the coil 3 provided in the intermediate part of the iron core 2 of the fixed electromagnet 1 is shown. It is possible to directly dissipate heat by providing a large number of fins 51 in the circuit 4, but in the illustrated embodiment, the outer periphery of the coil 3 is covered with a heat dissipating case 52, and cooling oil or It is also possible to supply a fluid such as cooling water, discharge it from the discharge cock 54 to the outside of the case, and circulate other external cooling / heating devices or the like to use heat dissipation. In this case, it is also possible to fix the coil 3 as a whole with a varnish or the like and make it uneven so that the surroundings can be easily radiated.

  FIG. 10 shows an embodiment of the coil 3 according to the present invention. The coils 3a and 3b are wound twice, and the energizing directions of one coil 3a and the other coil 3b are set in reverse to each coil 3a. , 3b switches 55a and 55b can be turned on and off to substantially change the direction of energization of the coil 3, preventing back electromotive force associated with switch switching and preventing switch sparking. Can do. In FIG. 10, 56 is a DC power source, 57a is a spark prevention device including a capacitor for the switch 55a of the coil 3a, and 57b is a spark prevention device including a capacitor for the switch 55b of the coil 3b.

  In Example 11 shown in FIG. 11b, the coil 3 wound around the iron core 60 of the fixed electromagnet, as shown in FIG. 11a, the winding start terminals 1a, 2a, 3a, 4a, 5a, 6a, 7a, 8a and the winding end. It is composed of eight coils 61, 62, 63, 64, 65, 66, 67, 68 having children 1b, 2b, 3b, 4b, 5b, 6b, 7b, 8b. In the illustrated embodiment, as shown in FIG. 11a, the resistance of each coil is 5.5 ohms for coil 61, 6.5 ohms for coil 62, 8 ohms for coil 63, and 8.5 ohms for coil 64. The coil 65 is 9.5 ohms, the coil 66 is 10 ohms, the coil 67 is 11 ohms, and the coil 68 is 12.5 ohms. The resistance value is set larger for the outer peripheral coil.

  In the embodiment shown in FIG. 11b, the fourth and fifth layer coils 64 and 65 are connected by one terminal 4b and 5a as shown in FIG. 11e so as to constitute a four layer coil having the same resistance value. The other terminals 4a and 5b are connected to different power sources 70 and 71, and the third and sixth layers of coils 63 and 66 are connected by one terminal 3b and 6a, and the other terminals 3a and 6b are connected to the power sources 70 and 71, respectively. The second and seventh layer coils 62 and 67 are connected to one terminal 2b and 7a, the other terminals 2a and 7b are connected to the power sources 70 and 71, respectively, and the first and eighth layer coils 61 and 68 are connected to one. The other terminals 1a and 8b are connected to the power supplies 70 and 71, respectively, connected by terminals 1b and 8a. By making the resistance of the coil of each layer the same, it can energize to each coil all at once.

In the embodiment shown in FIG. 11c, coils of 8 layers are connected in order of the fourth and fifth layers, the third and sixth layers, the second and seventh layers, and the first and eighth layers, and connected to the power sources 70 and 71. The coil of the layer can be energized as a single coil having the same resistance value.
In the embodiment of FIG. 11b, two layers of an eight-layer coil are connected in the order of the fourth and fifth layers, the third and sixth layers, and the second and seventh layers are connected in order of the first and eighth layers. The eight-layer coil can be energized as two coils of the same resistance value by being connected to the power sources 70 and 71.
Of course, each of the coils 61 to 68 shown in FIG. 11a can be connected to the power sources 70 and 71, respectively, so that the eight layers of coils can be energized in parallel.

1 Fixed Electromagnet 2 Iron Core 3 Coil 3
4 Coil holding plate 5 Fixed electrode portion 6 Fixed electrode portion 7 Notch portion 8 Permanent magnet 9 Permanent magnet 10 Rotating permanent magnet 11 Rotating shaft 12 Rotating permanent magnet 13 Rotating shaft 14 Base shaft portions 15, 16, 17, 18 Rotating permanent magnet 19, 20, 21, 22 Rotating shaft 23 Rotating shaft 24 Rotating shaft 25, 26 Fixed electrode portions 27, 28, 29, 30 Rotating permanent magnets 31, 32, 33, 34 Rotating permanent magnet 35 Bevel gear 36 Drive 37 Clutch 38 Shaft joint 40 Rotating permanent magnet 41 Rotating shaft 42 Base shaft portion 43 Permanent magnet 44 Rotor presser fittings 45, 46 Rotor assembly bolts and nuts 47 Reinforcement belt 48 Spacing member 49 Lightweight shaft portion 50 Heat radiation means 51 Fin 52 Heat radiation case 53 Tank 54 Discharge cock 55a , 55b Switch 56 DC power supply 60 Rotating shaft 61-68 Coil 70, 71 DC power supply

Claims (13)

  As a fixed electromagnet whose magnetic force should be converted, a coil is wound around an iron core, and the direction of energization to the coil is converted or turned on and off to change the polarity of the fixed electromagnet and rotate at both ends of the iron core of the fixed electromagnet The electromagnetic rotational drive device which provided the rotation permanent magnet which consists of a permanent magnet from which polarity changes alternately with it.   2. The electromagnetic rotation drive device according to claim 1, wherein a rotation permanent magnet is displaced at an iron core end portion of the fixed electromagnet.   3. The electromagnetic rotation drive device according to claim 2, wherein the iron core end portion of the fixed electromagnet is cut out in an arc shape, and one circumferential portion of the rotating permanent magnet faces the cutout portion. apparatus.   4. The electromagnetic rotary drive device according to claim 1, wherein the rotary permanent magnet is provided so that one outer peripheral portion of the rotary permanent magnet faces a side portion of the iron core end portion of the fixed electromagnet.   5. The electromagnetic rotation drive device according to claim 1, wherein a plurality of rotary permanent magnets are provided at an iron core end portion of the fixed electromagnet.   6. The electromagnetic rotary drive device according to claim 1, wherein the fixed electromagnet is provided with a multi-faced columnar iron core end.   The electromagnetic rotational drive apparatus of Claim 6 WHEREIN: The electromagnetic rotational drive apparatus which provides a rotation permanent magnet rotatably facing the multi-faced columnar iron core edge part of a fixed electromagnet.   8. The electromagnetic rotation drive device according to claim 7, wherein two rotation permanent magnets are provided to face one side surface of the end face of the multi-faced columnar core of the fixed electromagnet.   9. The electromagnetic rotary drive device according to claim 8, wherein the rotary permanent magnet is rotatably provided so as to face two parallel surfaces of the end face of the iron core of the polyhedral columnar shape of the fixed electromagnet.   10. The electromagnetic rotary drive device according to claim 1, wherein the rotary shafts of a plurality of rotary permanent magnets provided at the iron core end of the fixed electromagnet are connected to a single drive shaft. Rotation drive device.   The electromagnetic rotational drive device according to any one of claims 1 to 10, wherein a coil having a winding start terminal and a winding end terminal is wound around an iron core of a fixed electromagnet in multiple layers, and connections between the coils or connection to a power source are performed. An electromagnetic rotary drive device that can be set arbitrarily.   12. The electromagnetic rotary drive device according to claim 1, wherein a reinforcing belt made of a non-magnetic material is provided on the rotary outer periphery of the rotary permanent magnet.   13. The electromagnetic rotary drive device according to claim 1, wherein a heat dissipating means for circulating a cooling fluid is provided on the outer periphery of the coil of the fixed electromagnet.

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