JP6083914B1 - Wiring groove coilless motor - Google Patents

Abstract

Provided is a wiring grooved coilless motor that eliminates a coil that hinders a high-speed response and causes an increase in loss and suppresses induction characteristics as much as possible. A rotor including a permanent magnet having magnetic poles arranged so as to alternately form N-pole and S-pole magnetic fluxes on a substantially cylindrical outer peripheral surface, and a gap is provided with respect to the outer peripheral surface of the rotor. The magnetic body 5 having a substantially cylindrical shape disposed coaxially with the axis of the rotor, and the circuit division angle range θa to θc obtained by equally dividing the inner peripheral surface of the magnetic body 5 into circuits, The conductor 8 is arranged so that a current in the opposite direction flows alternately according to the polarity of the magnetic pole, and the angle range θ corresponding to each magnetic pole 2 of the rotor is provided on the inner peripheral surface of the magnetic body 5. A plurality of wiring grooves 10 are radially formed with a uniform width in a direction substantially parallel to the axis at a minute angular interval dθ that is equally divided inside, and comb-like magnetic partition walls 11 are formed between the wiring grooves 10. . [Selection] Figure 2

Description

  The present invention relates to a wiring grooved coilless motor capable of generating torque instantaneously and obtaining electric power from rotational force by eliminating a coil in order to make the induction characteristic as small as possible.

  In general, a motor has inductive characteristics, and the inductive characteristics make it difficult for fluctuations in current to occur. In addition, the motor power supply uses an inverter that generates three pseudo sine waves that are 120 degrees out of phase by PWM (Pulse Width Modulation) modulation. Control of the motor rotation speed and output torque is controlled by this inverter. Is possible.

  In addition, as shown in Patent Document 1 and Patent Document 2, in recent years, a so-called print motor in which a coil serving as an armature winding is formed on a printed circuit board by etching or printing technology has been used. In this print motor, the rotor is formed of a printed circuit board, and because it is light by not using an iron core, the inertia can be lowered, the speed control response can be improved, and the flatness is reduced. It has been attracting attention because it can be formed into any shape.

JP 11-316925 A Japanese Utility Model Publication No. 7-39278

  However, since all conventional motors form a coil (winding) and rotate the motor using a magnetic field generated by passing a current through the coil, a magnetic field is generated from the current flowing through the winding. The motor rotates only after the steps of forming the magnetic field and the step of attracting or repelling the magnetic field formed by the coil to other permanent magnets or electromagnets. In addition, a problem arises that inductance is increased by doubling the magnetic flux by increasing the number of turns of the coil so that a strong magnetic field can be formed with a smaller current.

  That is, there is a problem that the induction characteristic due to the inductance of the coil causes a delay in response at the stage where the current flowing through the coil is once converted into a magnetic field. Further, even when the magnetic flux formed by the coil is attracted or repelled by other permanent magnets or electromagnets, slippage occurs due to fluctuations in the torque applied to the rotor, so that responsiveness to fluctuations in load torque also occurs.

  Furthermore, when a pseudo alternating current is passed through the coil, such as in a three-phase induction motor, current control is performed using a pulse waveform by a switching element such as PWM conversion. Therefore, there is also a problem that the switching loss increases in proportion to the height of the carrier frequency of the switching element.

  In addition, when power that is 120 ° out of phase is supplied by PWM modulation, a phase shift occurs due to the influence of the inductance, making it difficult to control to maintain a phase difference of 120 ° between the phases. In the case of rotation, it becomes more difficult to control the phase, and it is necessary to perform complicated and high-speed control. Furthermore, the control becomes more complicated during the regenerative operation, which deteriorates the controllability as a whole, leading to an increase in cost and a decrease in efficiency.

  Further, when the magnetic flux is concentrated by using an iron core (yoke) for the coil, there arises a problem that a loss occurs due to magnetic saturation. Conversely, when a coil is wired without using an iron core or the like, in addition to the low magnetic flux density to which the coil is exposed, the magnetic field that can be generated by the coil is also weakened, so the driving torque must be weakened. In addition to the problem, there is a problem that the rotational speed cannot be increased because the rigidity of the coil is not sufficient.

  In particular, with the recent spread of hybrid vehicles and electric vehicles, it is necessary to generate rotational torque instantaneously by electric control, or conversely, to perform instantaneous regenerative operation, but a delay in response occurs due to the induction characteristics of the coil. This was the cause of the efficiency reduction.

  The present invention has been made in consideration of the above-mentioned matters, and provides a coilless motor that suppresses induction characteristics as much as possible by eliminating coils that hinder high-speed response and cause loss increase. Objective.

In order to solve the above-mentioned problems, the first invention is to alternately form N-pole and S-pole magnetic fluxes arranged at equal intervals in the circumferential direction and in the axial direction on a substantially cylindrical outer peripheral surface. A rotor having at least one permanent magnet with magnetic poles arranged on the rotor, a substantially cylindrical magnetic body that is arranged coaxially with the rotor axis, with a gap provided on the outer peripheral surface of the rotor, Within the angle range corresponding to each magnetic pole of the rotor on the peripheral surface, a circuit division angle range is defined by equally dividing this into each circuit, and in the reverse direction alternately according to the polarity of the N-pole and S-pole magnetic poles A conductor that is wired in a substantially self-letter shape so that a current flows, and the inner peripheral surface of the magnetic body has a minute angular interval that is equally divided into an angular range corresponding to each magnetic pole of the rotor And forming a plurality of wiring grooves formed radially with a uniform width in a direction substantially parallel to the axis, Comb-like magnetic partition walls are formed between the wiring grooves, and the conductors are inserted into the wiring grooves in an insulating manner so that the circuit division angle ranges corresponding to all the magnetic poles of the rotor It is configured such that a rotational force can be generated or regenerated by passing a current by switching a conductor to a circuit that does not straddle a magnetic pole and switching a current to the circuit. A wiring grooved coilless motor is provided. (Claim 1)

  At least one permanent magnet in which magnetic poles are arranged on the substantially cylindrical outer peripheral surface of the rotor so as to alternately form N-pole and S-pole magnetic fluxes that are equally spaced in the circumferential direction and aligned in the axial direction. Therefore, a radial or axial magnetic field is generated for each angle range corresponding to the magnetic poles on the inner peripheral surface of the magnetic body arranged concentrically with a gap in the outer peripheral surface of the rotor. The rotor may be an SPM type (surface magnet type) rotor with a permanent magnet exposed on its outer peripheral surface, or an IPM type (embedded magnet type) rotor having a permanent magnet inside. What is necessary is just to form N pole and S pole alternately in the direction.

  Since the circuit division angle range in which the circuit is divided equally into each circuit is defined within the angle range corresponding to each magnetic pole, the rotation angle at which the conductor of the circuit is arranged so as not to straddle the magnetic pole corresponding range During this period, the current flows through the conductor of this circuit so that the current flows in the direction substantially perpendicular to the magnetic flux in the guide portion inserted in the wiring groove, and the current flows to the conductor of the guide portion. A Lorentz force acts in proportion, and the reaction causes the rotor to rotate in the opposite direction. In addition, the conductor in the guide portion inserted and wired in the wiring groove of the adjacent rotation angle is folded back on both sides of the magnetic body, and the reverse current is alternately applied according to the polarity of the N-pole and S-pole. It is generated by flowing a current through a conductor inserted and wired in the wiring groove because it is wired in a substantially self-shaped manner within each circuit division angle range corresponding to all the magnetic poles of the rotor. All rotational forces act in the same direction.

  As described above, the rotational force generated by passing an electric current through the conductor can be generated by the number of magnetic poles formed on the rotor, so that the rotational force can be doubled accordingly. On the other hand, since the conductor configured as described above only forms a one-turn coil when making a round of the magnetic body, the high-speed response is ensured while suppressing an inadvertent increase in inductance. A necessary and sufficient rotational force can be obtained.

  In addition, the position of the conductor inserted in the wiring groove can be fixed, so that a stable rotational force can be obtained and the robustness is improved. In addition, a high-permeability magnetic partition wall is formed around the conductor inserted in the wiring groove in a comb-like shape, so that a high-density magnetic flux exists in proportion to the magnetic permeability of the members constituting the magnetic body. The high-density magnetic flux interacts with the magnetic field formed by the current flowing through the conductor, thereby generating a high rotational force proportional to the magnetic flux density. Moreover, since the heat generated by the conductor is dissipated through the magnetic body, a relatively large current can flow through the conductor. In the present invention, the wiring groove refers to a slit-like portion that holds the conductor so as to be sandwiched between magnetic partition walls, and does not limit the formation method.

  Furthermore, when there are a plurality of circuits that have a circuit division angle range in which the angle range corresponding to each magnetic pole of the magnetic body is equally divided, no matter what the rotation angle of the rotor is, Since the circuit division angle range assigned to this circuit is at a position that does not straddle the magnetic poles, it is possible to generate a rotational force or regenerate the rotational force by switching the circuit through which a current flows. At this time, it is not necessary to form a special control circuit such as a PWM power source, and only a change of the circuit can hardly cause torque fluctuations, and stable torque and current conversion can be performed.

  The greater the number of circuits, the greater the number of conductor circuits that do not straddle the pole end face (the angle range occupied by the conductor circuits straddling the pole end face can be reduced). Therefore, by turning on all the connection states to the circuit that does not straddle the magnetic pole end surface, the angle range occupied by the circuit of the conductor used for generation or regeneration of the rotational force can be widened, and a larger rotational force ( A larger regenerative current) can be obtained.

  The clearance is such that even if the rotor rotates at a high speed, the rotor and the magnetic material do not come into contact with each other. The gap is preferably as narrow as possible in order to suppress the leakage of magnetic flux, and the dimensions are the magnetomotive force and magnetic path of the permanent magnet. It is relatively determined by the size of the cross-sectional area. The magnetic material is preferably a metal having excellent permeability and suppressing generation of eddy current as much as possible and having little hysteresis (optimally, a multilayer silicon steel plate formed by rolling in a radial direction).

  The permanent magnet is preferably as long as it produces a stronger magnetic flux, and a rare earth magnet using neodymium, a rare earth element, is preferably used, but a magnetized ferromagnetic material may be used. Furthermore, it goes without saying that the same effect can be obtained even if an electromagnet formed by passing a constant current is used as a permanent magnet.

  In particular, the magnetic material is a composite soft magnetic material in which a soft magnetic material powder is solidified with an organic binder (binder), so that eddy currents can be more reliably prevented and hysteresis characteristics are minimized. The loss can be reduced. Furthermore, since the magnetic material includes a compressed amorphous material that abuts against the conductor and an injection amorphous material that abuts against the compressed amorphous material, it is easy to produce and leaks with high permeability while preventing an increase in manufacturing cost. In addition, the occurrence of hysteresis loss and eddy current loss can be minimized, and magnetic saturation can be avoided, which is preferable.

  As described above, the wire grooved coilless motor according to the first aspect of the present invention can dramatically increase the response speed by using the Lorentz force directly, compared with the conventional one using the coil, and can be rotated by current control. You can control the force directly. Here, the term “substantially orthogonal” means that the Lorentz force is a force applied by the cross product of the electric field and the magnetic flux density. Therefore, the arrangement at right angles is the most efficient arrangement. It means to act. In addition, when the rotational range is applied to the rotor and the angle range in which the conductor is arranged falls within the magnetic pole corresponding range of the magnetic pole end surface with the reverse polarity, the current flows in the opposite direction when the magnetic field is reversed. Direction and rotational torque can be kept in the same direction.

  Similarly, in the regenerative operation, a current flows through the conductor in proportion to the rotational force to be regenerated. Therefore, the regenerative torque can be adjusted relatively easily by controlling the regenerative current.

  In addition, since the power supply to the conductor fixed to the stator side can be easily performed without using a brush, the configuration of the coilless motor can be simplified as much as possible. It is possible to prevent a decrease in durability due to use.

According to a second aspect of the present invention, at least one magnetic pole is disposed on an inner surface of a substantially cylindrical shape so as to alternately form N-pole and S-pole magnetic fluxes arranged at equal intervals in the circumferential direction and aligned in the axial direction. A rotor having two permanent magnets, a substantially cylindrical magnetic body having an axial center disposed coaxially with the rotor with a gap provided between the rotor and the rotor on the outer peripheral surface of the magnetic body. Within the angle range corresponding to each magnetic pole, a circuit division angle range obtained by equally dividing the circuit into each circuit is defined, and currents in opposite directions are flowed alternately in accordance with the polarities of the N and S poles. A conductor that is wired in a self-shape, and the inner circumferential surface of the magnetic body is substantially parallel to the axis at minute angular intervals equally divided within the angular range corresponding to each magnetic pole of the rotor. A plurality of wiring grooves formed in the axial direction with a uniform width in the direction are formed, and a comb is formed between the wiring grooves. Yes forming a Jo of magnetic partition wall, the conductor of a conductor in each circuit division angle range corresponding to the full the magnetic poles of the rotor and wire by inserting wire insulated to said interconnection groove, pole Provided is a wiring grooved coilless motor configured to generate or regenerate rotational force by switching to a circuit of a conductor in a position that does not straddle and flowing current To do. (Claim 2)

  Since at least one permanent magnet having magnetic poles arranged so as to alternately form N pole and S pole magnetic fluxes arranged at equal intervals in the circumferential direction and aligned in the axial direction is provided on the inner peripheral surface of the rotor. A magnetic field in the radial direction or in the axial direction is generated for each magnetic pole corresponding angle range on the outer peripheral surface of the columnar magnetic body arranged concentrically with a gap in the inner peripheral surface of the rotor.

  Since the circuit division angle range in which the circuit is divided equally into each circuit is defined within the angle range corresponding to each magnetic pole, the rotation angle at which the conductor of the circuit is arranged so as not to straddle the magnetic pole corresponding range During this period, the current flows through the conductor of this circuit so that the current flows in the direction substantially perpendicular to the magnetic flux in the guide portion inserted in the wiring groove, and the current flows to the conductor of the guide portion. A Lorentz force acts in proportion, and the reaction causes the rotor to rotate in the opposite direction. Further, the conductor in the guide portion inserted in the wiring groove of the adjacent rotation angle is folded back on both sides of the magnetic body, and a current in the opposite direction flows alternately according to the polarities of the N pole and S pole. Rotation that occurs when a current is passed through a conductor inserted and wired in the wiring groove because the wiring is substantially self-shaped within each circuit division angle range corresponding to all the magnetic poles of the rotor. All forces act in the same direction.

  As described above, the rotational force generated by passing an electric current through the conductor can be generated by the number of magnetic pole end surfaces formed on the rotor, so that the rotational force can be doubled accordingly. On the other hand, since the conductor configured as described above only forms a one-turn coil when making a round of the magnetic material, a stable rotational force is obtained while suppressing an unnecessary increase in inductance. be able to. In addition, since the position of the conductor inserted into the wiring groove can be fixed, the robustness is improved accordingly. Further, since a ferromagnetic material having a high magnetic permeability is left in a comb shape around the conductor inserted in the wiring groove, a high rotational force proportional to the height of the magnetic flux density is generated.

  Furthermore, when there are a plurality of circuits that have a circuit division angle range in which the angle range corresponding to each magnetic pole of the magnetic body is equally divided, no matter what the rotation angle of the rotor is, Since the circuit division angle range assigned to this circuit is at a position that does not straddle the magnetic poles, it is possible to generate a rotational force or regenerate the rotational force by switching the circuit through which a current flows. At this time, it is not necessary to form a special control circuit such as a PWM power source, and only a change of the circuit can hardly cause torque fluctuations, and stable torque and current conversion can be performed.

  The greater the number of circuits, the greater the number of conductor circuits that do not straddle the pole end face (the angle range occupied by the conductor circuits straddling the pole end face can be reduced). Therefore, by turning on all the connection states to the circuit that does not straddle the magnetic pole end surface, the angle range occupied by the circuit of the conductor used for generation or regeneration of the rotational force can be widened, and a larger rotational force ( A larger regenerative current) can be obtained.

  The gap is such that it does not come into contact even if the rotor rotates at high speed, and is preferably as narrow as possible in order to suppress leakage of magnetic flux, and the dimensions thereof are the magnetomotive force of the permanent magnet and the cross-sectional area of the magnetic path. It is relatively determined by. The ferromagnetic material is preferably a metal (optimally a multilayer silicon steel plate) that has excellent permeability and suppresses generation of eddy currents as much as possible.

  That is, the wiring grooved coilless motor of the second invention has a rapid response speed compared to the conventional one using the coil by using the Lorentz force directly like the wiring grooved coilless motor of the first invention. It has the same characteristics as the first invention, such that the rotational force can be directly controlled by the current control. Further, the wiring grooved coilless motor of the second invention can be used as it is as a drive unit of the conveyor roller because the rotor has a cylindrical shape.

  A voltage detector is provided at each end of the conductor of each circuit, and a circuit located at a rotation angle at which the magnetic flux is reversed across the magnetic pole is discriminated by an impulse detected by the voltage detector, and a wiring groove is formed. In the case of having an angle detection circuit for detecting the rotation of the rotor at the minute angle interval to be formed (Claim 3), the voltage detection unit provided on the conductor constituting the circuit in the angle range straddling the magnetic pole is a wiring An abrupt change in magnetic flux density occurs at the moment when the conductor inserted in the groove straddles the magnetic pole, so that an impulse electromotive force is generated. Therefore, the angle detection circuit can detect the rotation angle of the rotor using this impulse.

  That is, the angle detection circuit can perform angle detection with a resolution of a minute angle interval forming the wiring groove without providing a special sensor, and the configuration can be simplified accordingly. The impulse generated in the conductor is generated when the wire grooved coilless motor is used as a motor, as a generator, or when it is rotated by inertia or external force when it is not energized. Therefore, it is preferable that the voltage detection unit and the rotation detection circuit are always operated by a backup power source such as a secondary battery, continuously check the current rotation angle, and store the rotation angle in a nonvolatile memory or the like. In addition, as long as the voltage detection unit and the angle detection circuit operate, the impulse electromotive force can be used even without a special backup power source.

  If the rotation angle is clear, the circuit of the conductor located in the angle range that does not straddle the magnetic pole becomes clear, so a switching circuit that switches the power supply to connect only to the conductor of the circuit that does not straddle the magnetic pole is provided. By forming, the Lorentz force can be generated by effectively using most of the magnetic pole end face without using a special control circuit such as a conventional PWM power supply, so that a sufficiently strong rotational force is obtained. be able to.

  As the number of circuits increases, the ratio used for generating the rotational force of the magnetic pole end face can be increased, so that the resultant rotational force can be increased. In this case, the voltage detection unit and the angle detection circuit are constituted by circuits that can be integrated, and the switching circuit for switching the connection of each circuit can be relatively reduced in size using a field effect transistor having excellent responsiveness. Therefore, for example, it is possible to make all the wiring grooves within the angle range corresponding to the magnetic poles to be circuits of separate conductors. In this case, the rotational force is generated using almost all the magnetic flux. Therefore, it is possible to further improve the rotational force.

  When the conductor is a strip-shaped conductor formed in accordance with the shape of the wiring groove (Claim 4), a conductor that is maximally aligned with the cross-sectional shape of the wiring groove is obtained. So that a large current can flow.

  In addition, since the strip-shaped conductor is a strip-shaped conductor having a cross-sectional rectangular shape in accordance with the width and depth width of the wiring groove, a single conductor can be inserted into one wiring groove. Assembling is easy and the inductance of each circuit can be made as small as possible. Further, it is possible to flow a maximum current in accordance with the cross-sectional area of the wiring groove.

  However, it is also possible to insert an integer number of conductors having a rectangular shape or a square cross section in accordance with the width obtained by dividing the depth width of the wiring groove by an integer and the width of the wiring groove. That is, when a plurality of conductors are inserted into one wiring groove, since each conductor is a single conductor connected in series, the same strength is applied in the same direction at any position in the depth direction of the wiring groove. Therefore, no abnormal heat is generated and the rotational force can be evenly generated at any position in the depth direction of the wiring groove.

  In the case where the conductor is a conductor made of graphene inserted into the wiring groove, and the wiring groove is formed to have a necessary minimum width into which graphene can be inserted (Claim 5), the conductivity of the conductor is increased. Not only can it be increased as much as possible, but also the width of the wiring groove is made as thin as possible, so by increasing the thickness ratio of the comb-like magnetic partition wall, the magnetic flux is handled with a stronger magnetic flux. The rotational force can be increased, and electromagnetic losses such as iron loss and eddy current can be minimized. The graphene is a conductor composed of single-layer carbon atoms packed densely in a two-dimensional honeycomb lattice.

  In addition, it is possible not only to narrow the minute angle interval for forming the wiring groove as much as possible and output a large rotational force and obtain a large regenerative current, but also to generate an impulse generated in this conductor. It is possible to improve the detection accuracy of the rotation angle when using it to detect the rotation angle.

  In the case where the conductor is a plurality of conductors inserted into the wiring groove (Claim 6), since a general-purpose conductor can be used as the conductor, the manufacturing cost can be reduced accordingly. At this time, the conductors constituting the same circuit are wired so as to be inserted into the same wiring groove a plurality of times, and the conductor in the wiring groove is a single conductor connected in series. Since currents of the same strength flow in the same direction at any position in the vertical direction, no abnormal heat is generated, and the rotational force can be evenly generated at any position in the depth direction of the wiring groove.

  However, the conductors inserted in the same wiring groove may be connected in parallel before and after being inserted into the wiring groove, and this can further suppress the increase in inductance.

  In the wiring grooved coilless motor of the present invention, it is possible to use a conductor as a sensor by providing a voltage detector at both ends of the conductor, but instead of this, a rotary encoder may be provided separately. Needless to say. Alternatively, a more reliable detection of the rotation angle of the rotor may be performed by providing a magnetic flux detector that is attached to a position facing the magnetic pole on the stator side and detects a change in the magnetic field accompanying the rotation of the rotor.

  In addition, when a switching circuit that controls the direction of current flowing through the conductors of each circuit and the intermittent control corresponding to the rotation angle of the rotor is provided, the coilless motor is simply supplied with power through this switching circuit. Thus, the rotation direction of the rotor can be freely controlled by supplying power in a direct current. Further, also in the regenerative operation, the regenerative current can easily flow to the power supply side only through the switching circuit.

  The switching element is preferably formed by a field effect transistor that can be switched at high speed, but may be a switching element using a bipolar transistor, a photocoupler, a thyristor, a solid state relay, or the like.

  As described above, according to the present invention, a conductor with a very simplified configuration in which a conductor attached on the stator side is arranged in a strong magnetic field formed by a permanent magnet attached on the rotor side. Since the rotor is rotated by the Lorentz force generated by passing an electric current through the coil, coils (windings) that were conventionally considered essential for the motor can be eliminated from the motor. By eliminating the coil, current delay due to inductive characteristics can be prevented, and the rotational force can be controlled with high response.

  In addition, it eliminates the need for a PWM modulation circuit or AC / DC conversion circuit for forming a pseudo sine wave, which was necessary for conventional motor control, and can prevent loss and noise associated with modulation. .

  In the wiring grooved coilless motor of the present invention, a wiring groove is provided in a magnetic body arranged with a gap in the magnetic pole of the rotor, and a conductor is wired in this wiring groove. A concentrated magnetic flux having a higher magnetic flux density exists in the body partition wall, so that a large rotational force can be obtained with a small current. Similarly, a large amount of regenerative current can be obtained from the rotational force.

  In the wiring grooved coilless motor of the present invention, the rotor has a cylindrical shape or a columnar shape, and the magnetic material adjacent to the rotor has a columnar shape or a cylindrical shape. Since the rotational force is generated in the vicinity of the part, if the entire shape is formed in a disk shape, for example, a large rotational force can be obtained by generating the rotational force in the vicinity of the outer periphery as far as possible from the shaft core. it can.

  Conversely, by forming the entire shape of the wiring grooved coilless motor long in the axial direction, the wiring grooved coilless motor according to the first aspect of the present invention uses the wiring grooved coilless motor of the present invention as a shaft of each part of a vehicle. It is also possible to generate a rotational force that compensates for the shortage of output torque of the internal combustion engine (engine) in the current fuel-efficient vehicle, and when the rotational force is regenerated due to inertia or the like, the regenerative current is It is also possible to regenerate the power by returning the power to the power source side. Further, the wiring grooved coilless motor of the second invention can be arranged with the wiring grooved coilless motor of the present invention as a driving roller of a roller conveyor, and can output a large rotational force while saving space. Is also possible.

1 is a side view showing a configuration of a wiring grooved coilless motor according to a first embodiment of the present invention. It is a longitudinal cross-sectional view of the said wiring groove type coilless motor. It is a perspective view which shows a partial structure of the rotor of the said wiring groove type coilless motor. It is a figure explaining the operation | movement in the principal part between the said rotor and a magnetic body. It is a figure which shows an example of the circuit which controls the said wiring grooved coilless motor. It is a figure explaining operation | movement of the circuit shown in FIG. It is a figure which shows the modification of the wiring groove type coilless motor shown in 1st Embodiment. It is a figure which shows the further modification of the said wiring groove type coilless motor. It is a figure which shows the further different modification of the said wiring groove type coilless motor. It is sectional drawing which shows the structure of the wiring grooved coilless motor of 2nd Embodiment. It is a figure which expands and shows a part of said wiring groove type coilless motor.

  Hereinafter, the configuration of the wiring grooved coilless motor 1 according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the wiring grooved coilless motor 1 of the present embodiment has a substantially cylindrical outer peripheral surface, N poles, S aligned at equal intervals in the circumferential direction and in the axial direction. A rotor 3 having at least one permanent magnet 2 in which magnetic poles 2N and 2S are arranged so as to alternately form magnetic fluxes of poles, and a gap 4 with respect to the outer peripheral surface of the rotor 3, A magnetic body 5 made of, for example, a silicon steel plate arranged coaxially, for example, a silicon steel plate, a case 6 for supporting the magnetic body 5 on its outer peripheral surface, and a bearing 6o for rotatably supporting the shaft 4 on the case 6 Then, in the angle range θ corresponding to the magnetic poles 2N and 2S of the rotor 3 on the inner peripheral surface of the magnetic body 5, circuit division angle ranges θa to θc obtained by equally dividing the circuit into the circuits 7a to 7c are determined. , Reverse to the polarity of the N and S poles Conductors 8 a, 8 b, 8 c wired so as to pass a current in the direction, and the inner peripheral surface of the magnetic body 5 has an angle range θ corresponding to the magnetic poles 2 N, 2 S of the rotor 3. A plurality of wiring grooves 10 are radially formed with a uniform width in a direction substantially parallel to the axis 4 at a minute angular interval dθ that is equally divided into the inside, and comb-like magnetic partition walls 11 are formed between the wiring grooves 10. In the circuit groove angle range θ,... Corresponding to all the magnetic poles 2N, 2S,... Of the rotor 3 by insulatingly inserting and wiring the conductors 8a, 8b, 8c in the wiring groove 10. Are wired with conductors 8a, 8b, 8c,.

  Note that the circuits 7a to 7c and the conductors 8a to 8c are all identified by attaching different symbols to the three circuits 7a to 7c shown in the present embodiment. When there is no need to separately explain 7a to 7c, they are simply expressed as a circuit 7 and a conductor 8.

  Even if the permanent magnet 2 of the rotor 3 is an SPM type (surface magnet type) provided so that the magnetic pole end faces of the magnetic poles 2N and 2S are exposed to the outer peripheral surface of the rotor 3, the permanent magnet 2 is embedded in the rotor 3. As a result, an IPM type (embedded magnet type) in which the magnetic pole end surfaces of the magnetic poles 2N and 2S are formed on the outer peripheral surface of the rotor 3 as a result. In any case, in the angle range (magnetic pole corresponding angle range) θ corresponding to the magnetic poles 2N and 2S, by forming the magnetic flux in the same direction from the outer peripheral surface of the rotor 3 in the axial direction, the magnetic flux on the magnetic pole end surface is changed. Diversify in the radial direction or converge in the axial direction.

  In this embodiment, the number of magnetic poles 2N and 2S that are switched when making a round of the rotor 3 is 8 in total, and each magnetic pole corresponding angle range θ is 45 °. Therefore, when the conductor 8 is wired so as to make a round around the rotor 3, eight circuit division angle ranges θa (in which each magnetic pole corresponding angle range θ is equally divided by the number of circuits (three circuits in this embodiment)). Or θb or θc), the conductor 8 is arranged so that a current flows in a direction substantially perpendicular to the magnetic field diverging or converging from the magnetic poles 2N and 2S eight times while the conductor 8 makes a round of the rotor 3. It will be.

  Therefore, the rotational force (or regenerative current) is stronger by several times the magnetic poles 2N and 2S (8 times in this embodiment) than when the conductor 8 is disposed only in front of one magnetic pole 2N (or 2S). It is comprised so that it can generate | occur | produce. That is, at least two poles are required for the magnetic poles 2N and 2S, but the greater the number, the greater the rotational force (or regenerative current) that can be output while the conductor 8 goes around the rotor 3.

  The magnet 2 is preferably a permanent magnet as strong as possible so as not to saturate the magnetic body 5 in order to obtain a strong rotational force (regenerative current). In this embodiment, a neodymium magnet capable of obtaining a very strong magnetic force. It is formed using.

  As shown in FIG. 2, the shape of the magnet 2 is formed in a sector fan shape in which a magnetic pole opposite to the magnetic pole formed on the outer peripheral surface of the rotor 3 is arranged on the shaft core 4 side. As shown, high-density magnetic flux is formed in the shaft core 4 and the magnetic body 5.

  As shown in the enlarged view of FIG. 2 and FIG. 4, a magnetic flux B having a high magnetic flux density concentrates on the magnetic partition 11 formed by providing the wiring groove 10 on the inner peripheral surface of the magnetic body 5. Therefore, when a current is passed through the conductor 8 inserted and wired in the wiring groove 10, a rotating magnetic field Br shown in FIG. 4 is generated by this current, and this rotating magnetic field Br is generated in the magnetic partition 11 by the permanent magnet 2. The rotor 3 can generate a rotational force by interacting with an extremely strong magnetic field B formed on the rotor 3.

  The rotor 3 is sandwiched between a flange portion 4a formed on the shaft core 4 and a restraining ring 4b so that the magnetic pole end surfaces of the magnet 2 are arranged in an alternating manner in the circumferential direction in the N pole and S pole. It is a substantially columnar member that is bonded and fixed to.

  The magnetic body 5 is formed by laminating a large number of thin, substantially disk-shaped thin plates of silicon steel having excellent magnetic permeability and insulating layers, and wiring grooves 10 are formed on the inner peripheral surface at a minute angle dθ interval. Since it is formed, the conductor 8 can be stably held. In addition, since the wiring groove 10 formed in the magnetic body 5 is formed deeper than the diameter of the conductor 8 in the radial direction, in the present embodiment, seven conductors 8 are wired in the same wiring groove 10. It is configured to be able to. The conductor 8 wired in the same wiring groove 10 is exposed to an alternating magnetic field of magnetic flux in complete synchronization with the rotation angle of the rotor 3.

  The inner peripheral surface of the magnetic body 5 is disposed with a gap with respect to the outer peripheral surface (magnetic pole end surface) of the rotor 3, and this gap is a gap that does not contact even when the rotor 3 rotates at high speed. By arranging them as close as possible, the leakage magnetic flux can be made as small as possible, and a strong alternating magnetic field can be generated in the magnetic body 5, which is preferable.

  The case 6 is made of a magnetically shieldable metal, holds the magnetic body 5 at the outer periphery thereof, and supports a substantially cylindrical first member 6A that rotatably supports the shaft 4 of the rotor 3 by the bearing 6o. The second member 6B is configured to cover the rotating portion of the rotor 4 with respect to the first member 6A, and a hole 6C is formed through which the conductor 8 of each circuit 7 can be drawn out. .

In the present embodiment, three wiring grooves 10 are formed in the circuit division angle range θa (or θb or θc) assigned to each circuit 7, and these form the wiring groove group of the same circuit 7. . Then, a total of 21 conductors 8 of 7 wires are inserted into the three wiring grooves 10 constituting this wiring groove group, thereby approximately 21 times as compared with the case where only one conductor 8 is wired. It is comprised so that the rotational force of can be obtained. That is, by increasing the current by flowing the current of the circuit 7 in series or multiple times in parallel, a doubling effect of the rotational force (or regenerative current) can be obtained.

  In this embodiment, the conductor 8 is connected to 21 branches before being inserted into all the wiring grooves 10 in the wiring groove group, and all the wiring grooves in the circuit division angle range θa (or θb or θc) are connected. 10 is configured so that the rotational force to be output can be increased while suppressing the increase in inductance of each circuit 7 by connecting the wiring 10 so that the magnetic body 5 is circled once again and connected together. doing.

  As shown in FIG. 3, 21 conductors 8 (hereinafter referred to as conductor groups) projecting from the wiring grooves 10 constituting the wiring groove group at both ends (only one of them is shown) in the axial direction of the magnetic body 5. ) Are bundled at the binding portion 8D and wired to the wiring groove group of the adjacent magnetic pole 2N (or 2S) via the twisted and turned portion 8E of the bound conductor group and the binding release portion 8F. The

  As a result, the conductor 8 wired at the position Pa of the wiring groove 10 (see FIG. 2) on the distal end side in the clockwise direction shown in the figure also applies to the adjacent magnetic pole 2N (or 2S) having a 45 ° phase difference. Since the wiring 8 is wired at the position Pa ′ of the wiring groove 10 on the front end side, the conductor 8 is wired so that the relative position of each wiring groove 10 with respect to the magnetic pole 2N (or 2S) is the same, and the magnetic pole 2N The overall shape is wired in a substantially self-letter shape so that current flows alternately in the opposite direction according to (or 2S).

  As shown in the enlarged view of FIG. 2 and FIG. 4, the shape of the wiring groove 10 is a minimum width that can be inserted in a state where the conductor 8 is attached with an insulating coating in the width direction. In the direction, in the present embodiment, seven conductors 8 are formed to a depth that allows them to be inserted side by side. Each wiring groove 10 is formed in a radial pattern so that the phase of the conductor 8 inserted therein is completely aligned, and is formed in parallel to the axial direction.

  By forming the wiring groove 10 at a minute angular interval dθ, a comb-like magnetic partition wall 11 can be formed on the inner peripheral surface of the magnetic body 5, and the width of the comb-like partition wall 11 and the wiring groove 10 is approximately the same. Is formed.

  FIG. 5 is a diagram showing an example of the angle detection circuit of the wiring grooved coilless motor 1 of the present invention. Reference numeral 12 shown in FIG. 5 denotes a battery serving as a power source, and the electric power from the battery 12 can be applied to the circuits 7a to 7c via the switching elements 13a to 13c and 14a to 14c in the forward and reverse directions. It is composed. Reference numerals 15a to 15c denote voltage detectors for detecting the terminal voltages Va to Vc of the circuits 7a to 7c. Reference numeral 16 denotes a voltage detector 15a to 15c that receives the terminal voltages Va to Vc detected by the voltage detectors 15a to 15c. The rotation angle has an angle detection circuit and outputs control signals Ca to Cc to each of the switching elements 13a to 13c and 14a to 14c, so that an arbitrary rotational force can be output and a regenerative current can be controlled to flow to the battery 12 side. It is a control part. Reference numeral 17 denotes a storage unit that stores the rotation angle of the rotor 3 obtained by monitoring fluctuations in the terminal voltages Va to Vb, 18 denotes a backup power source, and R denotes a rotation direction.

  The switching elements 13a to 13c and 14a to 14c are preferably semiconductor switches such as FETs capable of high-speed response and low ON-state resistance, but the present invention is not limited to this configuration.

  FIG. 6 is a diagram for explaining an operation when the rotor 3 shown in FIG. 5 rotates in the rotation direction R, using an example of measured values of terminal voltages detected by the voltage detectors 15a to 15c.

  As shown in FIG. 6, when the situation of the arrangement of the magnetic poles 2N and 2S shown in FIG. 5 is set to 0 °, the control unit 16 applies positive signals to the circuits 7b and 7c via, for example, the switching elements 13b, 13c, 14b, and 14c. Apply a voltage of. Here, when current flows through the conductors 8b and 8c, rotation occurs when current flows through the conductors 8b and 8c wired in a direction perpendicular to the magnetic flux in the strong magnetic field formed by the magnetic poles 2N and 2N. A magnetic field Br (see FIG. 4) is generated, and the rotor 3 further rotates in the rotation direction R by the Lorentz force.

  One wiring groove 10 (see FIGS. 2 and 4) in which the conductor 8a constituting the circuit 7a is wired is a magnetic pole until the rotor 3 rotates by a minute angle interval dθ (5 ° in this embodiment). It passes through the switching portion of 2N and 2S, and the terminal voltage Va of the conductor 8a detects an impulse accompanying a change in magnetic flux (an impulse in the negative direction because of a change from the N pole to the S pole). Similarly, an impulse is detected each time the minute angle interval dθ further rotates, and the control unit 16 can confirm that the rotor 3 is rotating clockwise by the minute angle interval dθ.

  Next, after the third impulse is detected in the terminal voltage Va, the control unit 16 switches the switching elements 13b and 14b to disconnect the conductor 8b of the circuit 7b from the battery 12, and then switches the switching elements 13a and 14a. By switching, a reverse voltage is applied to the conductor 8a of the circuit 7a.

  At this time, the rotor 3 shown in FIG. 5 is rotated by about 15 ° from the initial state. Therefore, the polarity of the magnetic pole end face facing the conductor 8a constituting the circuit 7a is the same as that of the other circuits 7b and 7c. Since the polarities of the magnetic pole end faces facing the bodies 8b and 8c are different, the same rotational force in the rotational direction R can be applied to the rotor 3 by applying a reverse voltage to the conductor 8a.

  Further, when the rotor 3 rotates in the rotation direction R, an impulse is generated in the terminal voltage of the conductor 8 of the circuit 7b separated from the battery 12 every minute angular interval dθ, and the control unit 16 detects this impulse, The rotation angle of the rotor 3 can be detected. Of course, when the rotation direction R is reversed, the generation polarity of the impulse is also reversed, and the order of the circuits 7a to 7c where the impulse is generated is also reversed.

  As described above, since the wiring grooved coilless motor 1 of the present invention hardly generates an inductance component in the conductors 8a, 8c, and 8c, it is necessary to monitor the fluctuation of the terminal voltage accompanying the rotation of the rotor 3 separately. The current rotation angle of the rotor 3 can be accurately detected without providing a sensor, and this is stored in the storage unit 17, for example, and the terminal voltage is monitored and the rotation angle is confirmed by the backup power source 18 even when power is not supplied. It is also possible. The rotation angle can be confirmed within a range corresponding to the magnetic pole corresponding rotation angle θ × 2 (90 ° in this example) occupied by the pair of magnetic poles 2N and 2S, but the current rotation angle is always monitored and stored in the storage unit 17. In this case, it is possible to monitor a rotation angle of 360 °.

  By constantly monitoring the rotation angle and storing it in the storage unit 17, the rotation angle of the rotor 3 is monitored even when the rotor 3 is rotated by an external force during non-energization. In addition, it is possible to apply a voltage having a polarity to rotate in the necessary rotation direction R only to the conductor 8 of the circuit 7 that does not straddle the magnetic poles 2N and 2S from the beginning of the control unit 16.

  Even if the rotation angle recorded by the control unit 16 is different from the actual angle, an impulse is generated in which conductor of the circuit 7 when the rotor 3 rotates, and then in which rotor 3 By confirming whether an impulse is generated, it is possible to quickly confirm the current rotation angle, and to perform accurate control thereafter.

  As described above, according to the wiring grooved coilless motor 1 of the present invention, a magnetic circuit having almost no inductance component can be formed in the conductor 8 of each circuit 7, and the Lorentz force generated when a current flows through the conductor 8. Since the rotational force can be obtained by directly using, it is possible to respond at a very high speed. This means that, as an electric motor, for example, assisting rotational force is used as auxiliary power for an internal combustion engine such as an engine, or conversely, a high-speed response is possible when charging the battery 12 using surplus rotational force. doing. Further, since it is not necessary to form a sine wave AC power source as a power source unlike a conventional electric motor, the PWM modulation circuit that causes noise generation can be eliminated and torque control can be performed very easily.

  Further, each conductor 8 is wired between alternating magnetic fields B that form a magnetic flux concentrated at high density in the magnetic partition walls 11 arranged in a comb shape, and the rotating magnetic field Br generated by the flow of current is strong. By interacting with the magnetic field B, a strong rotational force can be obtained with a smaller current. In addition, since the conductor 8 wired in the wiring groove 10 can be easily and reliably fixed in its physical position, it has sufficient robustness as a motor that rotates at high speed.

  Further, the control unit 16 adjusts the ratio of the energized circuits 7a to 7c (the number of energized circuits) and the energization timing (pulse width), whereby the strength of the rotational force output by the wiring grooved coilless motor 1 ( It is also possible to adjust the strength of the regenerative braking force.

  In addition, in the case of the wiring grooved coilless motor 1 having the conductor 8 divided into the three circuits 7a to 7c as in the present embodiment, 2/3 of the magnetic pole end face is effectively used in order to obtain a rotational force. Therefore, it is advantageous for producing a large torque, and in particular, a sufficiently strong rotational force can be obtained by the SPM type rotor 3 that exposes the magnetic poles 2N and 2S of the permanent magnet 2 on the outer peripheral surface of the rotor 3. However, even with the IPM type rotor 3, the rotational force can be obtained without any problem, and there is an advantage that the versatility is high.

  Furthermore, since the wire grooved coilless motor 1 of the present invention generates a rotational force by the Lorentz force on the outer peripheral surface of the rotor 3 having the long shaft core 4, the longer the rotor 3, the more the rotational force is generated. For example, the drive shaft or propeller shaft of an automobile can be replaced with the wiring grooved coilless motor 1 to generate a rotational force supplementarily.

  The above-described embodiment is merely an example for easily explaining the configuration and operation of the wiring grooved coilless motor 1 of the present invention, and it goes without saying that various modifications are possible.

  For example, the conductor 8 according to the present embodiment is configured to branch into a large number before wiring in the wiring groove 10 of the magnetic body 5 and to collect again after making a round of the magnetic body 5. Along the inner peripheral surface of the body 5, wiring may be sequentially performed in series in all the wiring grooves 10 in the circuit division angle range θa (or θb or θc). In this case, the circuit 7 of the conductor 8 becomes a coil having the number of windings wound around the magnetic body 5, which causes an increase in inductance (same as the 21-turn coil in this embodiment), but the same There is an advantage that a large rotational force can be obtained with an electric current. Note that the number of turns is much smaller than the number of turns of a coil used in a normal motor, and it can be said that it is coilless in the sense that an increase in inductance can be suppressed to a necessary minimum.

  FIG. 7 is a view showing a modification of the first embodiment. In the example shown in FIG. 7, one magnetic pole corresponding angle range θ and the structure of the conductor 8 are formed to be equally divided by four circuits 7 a to 7 d, and two lines are included in one circuit divided angle range θa to θd. The wiring trench 10 is formed. That is, by increasing the number of circuits, it corresponds to the circuit 7 of the conductor 8 that does not straddle the magnetic poles 2N, 2S with respect to the circuit division angle range θa to θd corresponding to the circuit 7 of the conductor 8 straddling the magnetic poles 2N, 2S. The ratio of the circuit division angle range θa to θd to be increased can be increased, and in the case of four circuits, about 3/4 of the total magnetic flux can be effectively used to obtain a rotational force or a regenerative current.

  Further, when the control unit 16 as shown in FIG. 5 is provided, it is possible to generate a rotational force by arbitrarily selecting 1 to 3 circuits among the circuits 7 that do not straddle the magnetic poles 2N and 2S. Control of the rotational force to be generated can be further facilitated.

  As the number of circuits increases, the control by the control unit 16 becomes more complicated, and the number of switching elements 13a, 13b,..., 14a, 14b. As well as more accurate control of the rotational force. It is also conceivable to divide the conductors 8 in all the wiring grooves 10 formed at the minute angle interval dθ into separate circuits 7 by integrating the portions 15 to 17.

  FIG. 8 is a view showing a further modification, and shows an example in which a strip-like conductor 20 having a rectangular cross section is used instead of the conductor 8. That is, a cross-sectional strip-shaped conductor adapted to the shape of the wiring groove 10 can be inserted into the wiring groove 10 without a gap, so that a larger amount of current can be passed than a normal cross-sectional circular conductor. Therefore, a large rotational force (regenerative current) can be obtained.

  Further, since the strip-shaped conductor 20 having a rectangular cross section fills the wiring groove 10 only by inserting it into the wiring groove 10 by a smaller number than the conductor 8 having a circular cross section, the labor required for inserting the conductor 20 can be reduced as much as possible. Therefore, the cost for manufacturing the wiring grooved coilless motor 1 can be reduced.

  FIG. 9 is a diagram showing a further different modification. In FIG. 9, instead of the conductor 8, a single conductor 21 matching the cross-sectional shape of the wiring groove is inserted and wired, so that the labor required for manufacturing the wiring grooved coilless motor 1 can be further suppressed. The manufacturing cost can be reduced.

  FIG. 10 is a diagram showing a configuration of the wiring grooved coilless motor 30 of the second embodiment. The wiring grooved coilless motor 30 of the present embodiment shows an example in which the positional relationship between the rotor 3 and the magnetic body 5 of the wiring grooved coilless motor 1 of the first embodiment is reversed. In FIGS. 1 to 9, the same reference numerals as those in the first embodiment are the same or equivalent parts, and the detailed description thereof is omitted.

  That is, the wiring grooved coilless motor 30 of the present embodiment alternately forms N-pole and S-pole magnetic fluxes on the substantially cylindrical inner circumferential surface at equal intervals in the circumferential direction and in the axial direction. A rotor 3 ′ having at least one permanent magnet 2 ′ in which magnetic poles 2N and 2S are arranged as described above, and an axial core disposed coaxially with the rotor 3 ′ by providing a gap with respect to the inner peripheral surface of the rotor 3 ′ And a substantially cylindrical magnetic body 5 ′ having 4 and an angular range θ corresponding to the magnetic poles 2 N and 2 S of the rotor 3 ′ on the outer peripheral surface of the magnetic body 5 ′. A circuit dividing angle range θa, θb... And a conductor 8 wired so as to allow a reverse current to flow alternately in accordance with the polarities of the N-pole and S-pole magnetic poles 2N, 2S, and The outer surface of the magnetic body 5 ′ corresponds to the magnetic poles 2N and 2S of the rotor 3 ′. A plurality of wiring grooves 10 ′ are formed in the axial direction with a uniform width in a direction substantially parallel to the shaft 4 at a minute angle interval dθ equally divided in the angle range θa, θb. A tooth-shaped magnetic partition wall 11 'is formed, and each circuit division corresponding to all the magnetic poles 2N and 2S of the rotor 3' is performed by insulatingly inserting and wiring the conductor 8 in the wiring groove 10 '. The conductor 8 is wired in the angle range θa, θb.

  Since the outer peripheral surface of the rotor 3 ′ of the present embodiment has a cylindrical shape, the shaft core 4 is fixed, and the cylindrical rotor 3 ′ rotates, for example, it is appropriately arranged as one of the conveyor rollers, By supplying a rotational force, it is also easy to supply a driving force capable of carrying a load by a conveyor.

  FIG. 11 is a diagram showing a further modification of the second embodiment of the present invention shown in FIG. As shown in the enlarged view, a wiring grooved coilless motor 32 shown in FIG. 11 has a strip-shaped conductor 33 made of graphene on the outer peripheral surface of the magnetic body 5 ′, and a magnetic partition wall having excellent magnetic permeability in a thin plate shape. 34. The cross section of the magnetic partition 34 is formed so that the side in contact with the outer peripheral surface of the magnetic body 5 ′ is slightly thin and slightly trapezoidal, and a large number of conductors 33 are formed. When the magnetic material partition wall 34 is overlapped with the insulator interposed therebetween, it is shaped so as to be a cylindrical member that is in contact with the outer peripheral surface of the cylindrical magnetic material 5 ′.

  In addition, a wiring groove 10 ′ into which the magnetic body 5 ′ can be inserted and wired is formed in a portion sandwiched between the magnetic body partition walls 34. Therefore, by arranging the magnetic partition wall 34 and the conductor 33 so as to overlap each other on the outer peripheral surface of the magnetic body 5 ′, the wiring 33 formed between the strip-shaped magnetic partition walls 34 is made of the graphene conductor 33. In addition to being inserted between 10 ', the interval between the magnetic partition walls 34 can be formed to the minimum necessary.

  The electrical conductivity of the graphene conductor 33 is extremely high. Therefore, even when the conductor 33 is formed very thin, a sufficient current can flow and the heat dissipation effect can be enhanced. In addition, since the surface area occupied by the magnetic partition wall 34 can be widened, an alternating magnetic field as strong as possible can be applied while avoiding magnetic saturation using a permanent magnet as strong as possible.

  Furthermore, since it is possible to further reduce the minute angle interval dθ ′ formed by the conductor 33 made of adjacent graphene, it is possible to detect the angle as much as that by detecting the impulse signal generated in each conductor 33. . Further, the thinner the conductor 33, the larger the number of circuits 7 that equally divide the conductor 33 can be set. The larger the number of circuits 7, the larger the magnetic flux of the permanent magnet 2 'of the rotor 3'. Can be used to obtain a rotational force or to obtain more regenerative current.

  In the above-described embodiment, the example in which the conductor 33 made of graphene and the magnetic partition wall 34 are arranged so as to overlap each other on the outer peripheral surface of the columnar magnetic body 5 ′ is shown, but the first embodiment shown in FIGS. It goes without saying that the conductor 33 made of graphene and the magnetic partition wall 34 may be placed on the inner peripheral surface of the cylindrical magnetic body 5 of the wiring grooved coilless motor 1 shown.

DESCRIPTION OF SYMBOLS 1 Wiring groove type coilless motor 2 Permanent magnet 2N, 2S Magnetic pole 3 Rotor 4 Axis 5 Magnetic body 7 (7a, 7b ...) Circuit 8 (8a, 8b ...) Conductor 8D Bundling part 8E Twist and turn part 8F Bundling release part DESCRIPTION OF SYMBOLS 10 Wiring groove | channel 11, 34 Magnetic body partition 15a, 15b ... Voltage detection part 16 Angle detection circuit (theta) Magnetic pole corresponding | compatible angle range (theta) a, (theta) b ... Circuit division | segmentation angle range d (theta) Minute angle space | interval

Claims (7)

A rotor including at least one permanent magnet having magnetic poles arranged on an outer peripheral surface of a substantially cylindrical shape at equal intervals in the circumferential direction and alternately forming N-pole and S-pole magnetic fluxes aligned in the axial direction. When,
A substantially cylindrical magnetic body that is disposed coaxially with the rotor axis by providing a gap with respect to the outer peripheral surface of the rotor;
Within the angle range corresponding to each magnetic pole of the rotor on the inner peripheral surface of this magnetic body, a circuit division angle range is obtained by equally dividing this into each circuit, and is matched to the polarities of the N-pole and S-pole magnetic poles. And a conductor wired in a substantially self-letter shape so that a reverse current flows alternately, and
On the inner peripheral surface of the magnetic body, a plurality of wiring grooves are radially formed with a uniform width in a direction substantially parallel to the axis at a minute angle interval equally divided within an angular range corresponding to each magnetic pole of the rotor, Comb-shaped magnetic partition walls are formed between the wiring grooves, and the conductors are inserted into the wiring grooves in an insulating manner so that each circuit division angle range corresponding to all the magnetic poles of the rotor is obtained. It is configured such that a rotational force can be generated or regenerated by passing a current by switching a conductor to a circuit that does not straddle a magnetic pole and switching a current to the circuit. Wiring groove coilless motor. At least one permanent magnet in which magnetic poles are arranged so as to alternately form N-pole and S-pole magnetic fluxes arranged at equal intervals in the circumferential direction and in the axial direction is provided on a substantially cylindrical inner peripheral surface. A rotor,
A substantially cylindrical magnetic body having an axial core disposed coaxially with the rotor, with a gap provided on the inner peripheral surface of the rotor,
Within the angle range corresponding to each magnetic pole of the rotor on the outer peripheral surface of this magnetic body, a circuit division angle range is defined by equally dividing it into each circuit, and alternately according to the polarities of the N pole and S pole. And a conductor wired in a substantially self-letter shape so as to pass a current in the reverse direction, and
On the outer peripheral surface of the magnetic body, a plurality of wiring grooves are formed in the axial direction with a uniform width in a direction substantially parallel to the axis at a minute angle interval equally divided within an angular range corresponding to each magnetic pole of the rotor. In addition, a comb-like magnetic partition wall is formed between the wiring grooves, and each conductor division angle range corresponding to all the magnetic poles of the rotor is formed by insulatingly inserting and wiring the conductor in the wiring groove. It is configured to be able to generate or regenerate rotational force by wiring a conductor inside and switching to a circuit of a conductor in a position that does not straddle the magnetic pole to flow current. Wiring channel coilless motor.   A voltage detector is provided at each end of the conductor of each circuit, and a circuit located at a rotation angle at which the magnetic flux is reversed across the magnetic pole is discriminated by an impulse detected by the voltage detector, and a wiring groove is formed. The wiring grooved coilless motor according to claim 1, further comprising an angle detection circuit configured to detect rotation of the rotor at the minute angle intervals to be formed.   The wiring conductor coilless motor according to any one of claims 1 to 3, wherein the conductor is a strip-shaped conductor formed in accordance with the shape of the wiring groove.   5. The wiring grooved coilless motor according to claim 4, wherein the conductor is a conductor made of graphene inserted into the wiring groove, and the wiring groove is formed to have a necessary minimum width into which graphene can be inserted.   The wiring conductor coilless motor according to any one of claims 1 to 3, wherein the conductor is a plurality of conductors that are recessed in the wiring groove.   The conductor includes a bundling portion obtained by bundling a conductor group projecting from an end portion of each wiring groove group constituting the one circuit at both ends of the magnetic body, and a 180 ° twist and turn portion of the bound conductor group. A wiring grooved coilless motor according to any one of claims 4 to 6, wherein the wiring grooved coilless motor is wired to a wiring groove group of adjacent magnetic poles via a binding release portion.

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