WO2015076400A1 - Magnetic rotary device and magnetically-assisted motor utilizing same - Google Patents

Abstract

Provided is a magnetic rotary device that is excellent in terms of efficiency, uniformity, and stability of rotation and energy-saving performance, whereby little resistive force is generated against the rotation of a rotor when permanent magnets pass along a facing surface of a core, thereby reducing the rotational load torque of the rotor in order to enable the rotor to be rotated with a small driving force, and the rotation of the rotor is assisted by means of the action of magnetic fields generated in coils such that the rotor is stably rotated in a substantially constant manner so as to suppress fluctuations in the rotation of the rotor in order to enable a large torque to be obtained. The magnetic rotary device is equipped with: a rotor that is fixed to a rotary shaft; a first field magnet section where multiple magnets are so arranged along the rotating direction of the rotor that the magnetic poles at the end faces of the magnets alternately differ from each other; multiple cores, each having at one end a first facing surface facing the first field magnet section with a gap therebetween, that are arranged with a gap from the first field magnet section and electrically insulated from each other; multiple coils that are independently wound around the respective cores; and a switching section that disconnects respective terminals of the multiple coils from each other at the start of rotation of the rotor and short-circuits the terminals once the rotor has started to rotate.

Description

Magnetic rotating device and magnetic assist motor using the same

The present invention can obtain a large torque by rotating a rotor on which a permanent magnet is disposed efficiently and stably with a small force, is excellent in energy saving, and can be used particularly favorably for driving a generator. The present invention relates to a rotating device and a motor with magnetic assistance using the same.

2. Description of the Related Art Conventionally, a generator that includes a rotor having a large number of magnets and a stator having a stator coil and generates an induced voltage in the stator coil by rotating the rotor is known.
In the case of a conventional synchronous generator using a permanent magnet, when the magnetic pole rotor on which the permanent magnet is arranged is rotated, the repulsive force and attractive force received from the core when the permanent magnet passes through the opposing surface of the stator coil core. As a result, the rotation is hindered, the rotational load torque of the magnetic pole rotor is increased, and the load current of the drive motor for rotating the magnetic pole rotor is remarkably increased. As a result, the power consumption for rotating the magnetic pole rotor is significantly increased. There was a problem that the power generation efficiency was greatly reduced.
Therefore, in order to improve the power generation efficiency of the generator, it is necessary to rotate the rotor with a small driving force. For this purpose, the repulsive force and suction force received from the core should not interfere with the rotation (resistance) of the rotor. On the contrary, if the repulsive force and the attractive force by this magnetic force can be utilized well, the rotor can be rotated with a small driving force.
For example, (Patent Document 1) includes a rotor in which a unit in which a coil of an electromagnet and a conductor for generating an induced electromotive force are short-circuited is disposed in a circumferential direction, an induced electromotive force generating magnet disposed in parallel with the conductor, and It has a magnet for torque generation arranged perpendicular to the electromagnet, generates an induced electromotive force by rotating the rotor or stator, magnetizes the electromagnet of the rotor, and creates a repulsive force / adsorption force between the magnet for torque generation There is disclosed a non-power-supply assist motor that generates power.

Utility Model Registration No. 3092159

However, the above conventional techniques have the following problems.
(1) (Patent Document 1) does not describe the arrangement of the magnetic poles of the induced electromotive force generating magnet and the torque generating magnet, so it is unclear how these magnetic fields act, and the magnetized electromagnet It is not possible to clearly understand at what timing the repulsive force or the attractive force acts between the magnet and the torque generating magnet. However, in order to rotate the rotor with a small force with the position where the electromagnet and the torque generating magnet face each other, a repulsive force acts between the electromagnet and the torque generating magnet. It is thought that an attractive force needs to work between the generating magnets.
In other words, the electromagnet facing the torque generating magnet is repelled from the torque generating magnet and is attracted to the induced electromotive force generating magnet, and it is thought that the force that rotates the rotor works. Since the electromagnet located at the position facing the working magnet continues to be attracted by the induced electromotive force generating magnet, the brake is applied and it seems difficult to rotate forward from there.
Therefore, in practice, it is impossible to rotate the rotor, or even if it is possible, a very large driving force is required, and a large torque (output) cannot be obtained. It is considered that there is a problem of lack of stability.
(2) Since the number of electromagnets of the rotor is 16 that is four times (integer multiple) of the number of torque generating magnets and is arranged at equiangular intervals, the four torque generating magnets to the electromagnets Because repulsive force or adsorption force is always considered to act at the same time, once the brake is applied and the rotation stops, it is extremely difficult to rotate from there, and there is a problem that the reliability and stability of the operation are lacking. It is thought to have.
(3) Furthermore, since an induced electromotive force generating magnet and a torque generating magnet are necessary, there is a problem that the configuration is complicated, the number of parts is large, and mass productivity and assembly workability are lacking.

The present invention solves the above-mentioned conventional problems, and when the permanent magnet passes through the facing surface of the core, there is little repulsive force and attractive force acting in the direction of inhibiting the rotation of the rotor from the core, and the rotational load torque of the rotor is reduced. The rotor can be rotated with a slight driving force, and the rotation of the rotor is assisted by the action of the magnetic field generated in the coil. An object of the present invention is to provide a magnetic rotating device excellent in rotation efficiency, uniformity, stability, and energy saving that can obtain a large torque, and a magnetic assist motor using the same.

In order to solve the above-described conventional problems, a magnetic rotating device of the present invention and a motor with magnetic assist using the same have the following configurations.
The magnetic rotating apparatus according to claim 1, a rotor attached to a rotating shaft, and a first field part in which a plurality of permanent magnets are arranged so that magnetic poles of end faces are alternately changed along the rotation direction of the rotor; A plurality of cores disposed at an interval from the first field part and having a first opposing surface facing the first field part via a gap at one end, each of which is magnetically insulated; A plurality of coils wound around each of the cores independently, and at the start of rotation of the rotor, the respective ends of the plurality of coils are opened, and after the rotation of the rotor is started, each of the plurality of coils And a switching unit that short-circuits the terminals.
With this configuration, the following effects can be obtained.
(1) A plurality of coils wound independently on each core and terminals of the plurality of coils are opened at the start of rotation of the rotor, and terminals of the plurality of coils are opened after the rotation of the rotor is started. Because it has a switching part that short-circuits the coil, the terminals of the coils are opened at the start of rotation so that current does not flow through the coil by electromagnetic induction and the coil does not magnetize, so that the rotational load torque of the rotor And the rotor can be rotated with a small driving force. As a result, it is possible to reduce the size of a rotary drive device such as a drive motor, which is excellent in power saving and power saving at the time of driving, and after the rotation starts, each terminal of the coil is short-circuited to the coil by electromagnetic induction. The coil is magnetized by the flowing current, and the rotor is rotated by the repulsive force and attractive force generated between it and the permanent magnet by the action of the magnetic field generated in the coil. The output can be increased and the rotation efficiency, uniformity, output stability and energy saving are excellent.
(2) The rotation load torque of the rotor at the start of rotation can be easily reduced and the rotation can be easily reduced by simply switching the open and short of each terminal of the plurality of coils by the switching unit at the start and after the start of the rotation of the rotor. The rotation of the rotor after the start can be stabilized, it is not necessary to perform a complicated operation during the rotation of the rotor, the operation can be simplified, and the mass productivity and the ease of control are excellent.

Here, as the rotor, one formed in a columnar shape such as a columnar shape or a polygonal column shape, a plate shape, or the like can be used. For a rotor formed in a columnar shape, a permanent magnet can be arranged on the outer peripheral surface of the rotor, and for a rotor formed in a plate shape, a permanent magnet can be arranged on the flat plate surface of the rotor. . When the rotor rotates and the magnetic flux guided from the permanent magnet to the core changes, a current flows through the coil due to electromagnetic induction, the coil is magnetized, and a repulsive force or attractive force acts between the permanent magnet.
The rotating shaft of the rotor can be connected to a power generation source such as a windmill or a water turbine in addition to a rotational driving device such as a driving motor. It can be rotated to obtain a large output (torque) and is excellent in energy saving. Therefore, power is supplied to rotating devices for transmitting power to generators mounted on automobiles, ships, railways, aircraft, construction machinery, etc., and generators for private power generation that supply power to factories, stores, houses, etc. It can be suitably used as a rotating device for transmitting the power to increase the power generation efficiency of the generator.

The permanent magnet can be appropriately selected from alnico magnets, ferrite magnets, Fe—Cr—Co magnets, samarium-based, neodymium-based rare earth magnets, and the like. In order to obtain a large output, it is preferable to use a rare earth magnet having a large magnetic flux density and a large coercive force, particularly a neodymium permanent magnet.
The permanent magnet may be a single member formed in a lump shape or the like, or a plurality of plate-like permanent magnets may be adsorbed and stacked to form a lump shape. The shape of the end surface on the core side of the permanent magnet is not particularly limited, and various shapes such as a rectangular shape and a circular shape can be adopted.
A plurality of permanent magnets are arranged on the outer peripheral surface or flat plate surface of the rotor so that the magnetic poles on the end faces are alternately different, thereby forming the first field portion.
The number and arrangement of the permanent magnets and cores (coils) arranged in the rotation direction of the rotor can be selected as appropriate. However, by arranging them at equiangular intervals, the magnetic field generated in the coils can be changed in the circumferential direction. By acting evenly, fluctuations in the rotation of the rotor can be effectively suppressed, and the rotation uniformity of the rotor, stability, and efficiency are excellent.

The switching part should just be able to switch open and short of each terminal of a some coil. A switch provided between the terminals of each of the plurality of coils may be used to individually switch between open and short of each coil, or by connecting the bridge rectifiers connected between the terminals of each coil in parallel. The entire circuit may be switched on and off by a single switch (switching unit) formed and provided in the parallel circuit, and all of the coils may be switched between open and short.
As the switching unit, one that automatically switches between open and short by detecting the presence or absence of rotation of the rotor or the number of rotations of the rotor is preferably used. In particular, it has a rotation number detection unit for detecting the rotation number of the rotor, and when the rotation number detected by the rotation number detection unit is equal to or higher than a preset rotation number, each terminal of all the coils is connected with the switching unit. If a switching unit that switches from open to short is used, control reliability, operational stability, and power generation efficiency are excellent.

A second aspect of the present invention is the magnetic rotating device according to the first aspect, wherein when the permanent magnet and the core of the first field portion are arranged at equiangular intervals, respectively, The number of the permanent magnets and the number of the cores in the field part are not an integral multiple of the number of the other party.
With this configuration, in addition to the operation obtained in the first aspect, the following operation can be obtained.
(1) The magnetic flux guided from the permanent magnet to each core changes according to the rotation of the rotor. However, when the permanent magnet and the core of the first field part are arranged at equiangular intervals, respectively, Since the number of permanent magnets and the number of cores are not an integral multiple of the number of the other party, all cores do not overlap with the permanent magnets at the same time, or all permanent magnets do not overlap with the cores at the same time, and the timing is shifted little by little. However, each coil can be magnetized one after another, and no repulsive force or attractive force is applied from all coils at the same time. The rotor can be stably rotated by the repulsive force or suction force acting between them, and the rotor can be stably rotated, and the rotation stability, efficiency, and energy saving of the rotor are excellent.

Here, when the permanent magnets and the cores are arranged at equiangular intervals, and the number of permanent magnets is an integral multiple of the number of cores (including the case where they are equal), each of the cores and the permanent facing the cores. Since all the positional relationships with the magnets are the same, the changes in the magnetic flux guided from the permanent magnets to the respective cores during rotation of the rotor are equal, and the repulsive force or attractive force is applied to the permanent magnets facing from all the coils at the same timing. Will act. Similarly, when the number of cores is an integral multiple of the number of permanent magnets (including the case where they are equal), the positional relationships between the respective permanent magnets and the cores facing each other are the same. Changes in the magnetic flux guided from each permanent magnet to the opposing core during rotation are equal, and a repulsive force or attractive force is applied to all the permanent magnets from the opposing coil at the same timing.
Therefore, in these cases, the repulsive force or attraction force may act simultaneously in the direction that impedes the rotation of the rotor, resulting in a large brake. To prevent this, the number of permanent magnets and the number of cores It is effective to make sure that the number is not an integral multiple of the number of the other party. In particular, when the number of permanent magnets and the number of cores are relatively prime, there is no common divisor other than 1 between them, so that a plurality of permanent magnets and cores do not overlap at the same time, and repulsive force or attraction The timing of force generation can be evenly distributed, and the rotation stability of the rotor is excellent.

A third aspect of the present invention is the magnetic rotating device according to the first or second aspect, wherein the switching unit includes a bridge rectifier connected between terminals of each of the coils, and each of the bridge rectifiers. A parallel circuit that connects output terminals in parallel; and a switching unit that switches on and off of the parallel circuit.
With this configuration, in addition to the operation obtained in the first or second aspect, the following operation can be obtained.
(1) Since the switching unit includes a bridge rectifier connected between the terminals of each coil, an alternating current flowing through each coil can be converted into a direct current and output. A parallel circuit can be formed by connecting output terminals in parallel, and the switching and switching of each terminal of all coils can be switched simultaneously by simply switching on and off the parallel circuit with one switching unit. The circuit can be simplified, and the operation is simple, reliable, and stable.

A fourth aspect of the present invention is the magnetic rotating device according to any one of the first to third aspects, wherein the rotor is formed of a ferromagnetic material and the permanent magnet of the first field portion. And a first permanent magnet surrounding portion that surrounds both ends of the rotor and both sides in the rotational direction of the rotor.
With this configuration, in addition to the action obtained in any one of claims 1 to 3, the following action is obtained.
(1) It is formed of a ferromagnetic material, and has a first permanent magnet surrounding portion that surrounds the rotor-side end portion of the permanent magnet of the first field portion and both sides in the rotational direction of the rotor, thereby preventing magnetic flux leakage. Since the magnetic flux density at the end face of the permanent magnet on the core side can be increased, the magnetic flux density guided to the core can be increased, and the repulsive force and attractive force generated by the coil can be increased to assist the rotation of the rotor. Excellent rotor rotation stability and drive efficiency.
(2) By having the first permanent magnet surrounding portion surrounding the rotor-side end of the permanent magnet of the first field portion and both sides in the rotational direction of the rotor, the outer periphery of the permanent magnet can be protected and the first The permanent magnet can be easily and surely fixed at the permanent magnet surrounding portion to prevent the permanent magnet from falling off the rotor, and the assembly workability and durability are excellent.

Here, iron, silicon iron, permalloy, ferrite, alnico alloy, or the like can be used as the ferromagnetic material forming the first permanent magnet surrounding portion.
Further, the first permanent magnet surrounding portion only needs to surround the end portion on the rotor side of the permanent magnet and both side portions in the rotation direction of the rotor, and the shape can be appropriately selected according to the shape of the permanent magnet. it can. In particular, when the permanent magnet is formed in a rectangular parallelepiped shape or a cubic shape, the inner peripheral surface is formed on the rotor side end of the permanent magnet and the rotation direction of the rotor by forming the first permanent magnet surrounding portion in a substantially U-shaped cross section. Can be brought into close contact with each other, and the fixing stability of the permanent magnet and the reliability of preventing leakage of magnetic flux are excellent.
The first permanent magnet surrounding portion can be fixed to the outer surface of the rotor, but a part of the outer surface of the rotor is formed of a ferromagnetic material such as iron, silicon iron, permalloy, etc., and a part of the first permanent magnet surrounding portion It may be used as

A fifth aspect of the present invention is the magnetic rotating device according to any one of the first to fourth aspects, wherein the magnetic rotating device is formed of a paramagnetic material and surrounds an outer periphery of the first field portion. It has the structure provided with the 1st rotor surrounding part rotated with a rotor.
With this configuration, in addition to the action obtained in any one of claims 1 to 4, the following action is obtained.
(1) It is made of a paramagnetic material and has a first rotor surrounding portion that surrounds the outer periphery of the first field portion and rotates together with the rotor, so that a force is applied to the first rotor surrounding portion in the same direction as the rotation direction of the rotor. Thus, the rotation of the rotor can be accelerated or stabilized, the rotation efficiency and stability are excellent, and the output torque can be increased and stabilized. This is because a magnetic field is generated in the coil during rotation of the rotor, and the eddy current is generated by the passage of the first rotor enclosure, and the first rotor enclosure is moved in the direction of rotation of the rotor by the action of the magnetic field. This is thought to be due to the energizing force.
(2) By surrounding the outer periphery of the first field portion with the first rotor surrounding portion, the permanent magnet protruding on the rotor surface does not become a resistance when the rotor rotates, and the rotor can be smoothly rotated. In addition to being excellent in rotation efficiency, it is possible to stabilize the airflow around the outer periphery of the rotor and reduce wind noise, resulting in excellent noise reduction.
(3) The outer surface of the permanent magnet can be securely fixed by the first rotor surrounding portion surrounding the outer periphery of the first field portion, the falling of the permanent magnet can be prevented, and the stability and operation of fixing the permanent magnet Excellent certainty.

Here, the first rotor surrounding portion is formed of a paramagnetic material, and aluminum is particularly preferably used. The first rotor surrounding portion may be attached so that it is molded into a cylindrical shape or the like from the beginning so as to fit around the outer periphery of the first field portion, or a sheet-like (band-like) shape is wound around it. May be attached. In particular, a sheet-like (strip-like) sheet having an adhesive layer on the back surface can be easily fixed and has excellent assembly workability. In order to fill the step between the outer peripheral surface of the rotor and the surface of the permanent magnet, a spacer may be disposed on the outer periphery of the side portion of the permanent magnet (between the permanent magnet and the permanent magnet disposed in the circumferential direction).

A sixth aspect of the present invention is the magnetic rotating device according to any one of the first to fifth aspects, wherein the first field portion is a ferromagnetic body and the surface is a raceway surface of the permanent magnet. And a first magnetic flux shielding member that is formed in a mountain shape or an arc shape so as to extend along the core and is fixed to the end surface on the core side of each permanent magnet to disperse and equalize the magnetic flux emitted from the surface. ing.
With this configuration, in addition to the action obtained in any one of claims 1 to 5, the following action is obtained.
(1) The first field portion is made of a ferromagnetic material and the surface is formed in a mountain shape or an arc shape so as to follow the raceway surface of the permanent magnet, and is fixed to the end surface on the core side of each permanent magnet and comes out of the surface. By providing the first magnetic flux shielding member that disperses and equalizes the magnetic flux, the magnetic flux of the permanent magnet is guided to the first magnetic flux shielding member, and the magnetic flux emitted from the first magnetic flux shielding member is guided to the core The magnetic flux is distributed along the track surface of the permanent magnet and moves toward the core while shifting the timing. Therefore, when the first magnetic flux shielding member passes through the first opposed surface of the core, the first magnetic flux shielding member per unit time The suction force (force that inhibits rotation) received from the core is also dispersed and reduced. Thereby, the rotor can be rotated with a slight driving force, and the rotation efficiency can be improved.

Here, as the first magnetic flux shielding member, a ferromagnetic material such as iron, silicon iron, permalloy, ferrite, and alnico alloy (Fe—Al—Ni—Co alloy) formed in a lump shape, a plate shape, or the like is used. Can be used. Either a hard magnetic material or a soft magnetic material can be used, and a magnetized material can also be used. The magnetized first magnetic flux shielding member can be either anisotropic or isotropic. However, when the anisotropic first magnetic flux shielding member is used, the orientation direction is the rotational direction of the rotor. It is desirable to fix the first magnetic flux shielding member to the permanent magnet so as to face along. This is because the leakage magnetic flux connecting the adjacent first magnetic flux shielding members along the rotation direction can be increased and the rotational load torque of the rotor can be decreased.
One thick magnetic flux shielding member can be fixed to the end face of the permanent magnet. Further, a plurality of thin first magnetic flux shielding members can be stacked and fixed to the end face of the permanent magnet.
The material of the first magnetic flux shielding member can be appropriately selected according to the type of permanent magnet. This is because the magnetic permeability of the first magnetic flux shielding member changes depending on the material, the magnetic flux density causing magnetic saturation changes, and a leakage magnetic flux is generated. In particular, among the first magnetic flux shielding members whose coercive force is smaller than the coercive force of the permanent magnet material, the one having the largest possible coercive force is used. For example, when a rare earth magnet is used as the permanent magnet, a ferromagnetic material such as ferrite or alnico alloy is preferably used. Further, a magnetized ferromagnetic material such as a ferrite magnet or an alnico magnet that is magnetized on the ferromagnetic material is preferably used. This is because the magnetic flux density emitted from the first magnetic flux shielding member can be increased and the rotational output can be increased.

The size of the first magnetic flux shielding member may be smaller than the end surface of the permanent magnet and cover a part of the end surface, but is preferably the same size as the end surface or larger. This is because the end face of the permanent magnet is completely covered, so that almost all of the magnetic flux emitted from the end face enters the first magnetic flux shielding member.
By appropriately selecting the material, shape, size, thickness, number, etc. of the first magnetic flux shielding member, the repulsive force and attractive force that the first magnetic flux shielding member receives from the core can be designed.
The first magnetic flux shielding member may be fixed in close contact with the end face of the permanent magnet, or may be fixed at an appropriate interval. As a means for fixing, a fastening member such as a bolt or an adhesive can be used. In addition, the permanent magnet and the first magnetic flux shielding member can be accommodated in a case made of synthetic resin or the like.

The shape of the surface of the first magnetic flux shielding member facing the first opposed surface of the core is made to equalize (disperse) the magnetic flux emitted from the first magnetic flux shielding member according to the shape of the rotating raceway surface of the end face of the permanent magnet. It can be designed appropriately. Specifically, when a permanent magnet is disposed on the outer peripheral surface of a rotor formed in a columnar shape, the rotational orbital surface of the end surface of the permanent magnet becomes a three-dimensional annular band surface, and therefore the first magnetic flux shielding member The surface is preferably formed in an arc shape (curved shape) protruding from the central portion, a mountain shape, or the like. In addition, when the permanent magnet is disposed on the flat plate surface of the rotor formed in a plate shape, the surface of the first magnetic flux shielding member is flat because the rotating raceway surface of the end surface of the permanent magnet is a flat annular shape. It is preferable to form in a shape.
The core is attached to a casing formed of a nonmagnetic material such as aluminum, stainless steel, or brass, or a synthetic resin, and is magnetically insulated.

The interval (gap) between the first magnetic flux shielding member and the first facing surface facing the first magnetic flux shielding member affects the rotation efficiency. By reducing the gap (gap), the rotation efficiency can be improved, and a large torque can be generated even when the rotation speed is low. For this reason, it is desirable to provide an interval adjusting means for adjusting the interval between the first magnetic flux shielding member and the first facing surface. When assembling the magnetic rotating device by arranging the core outside the first field part, the distance between the first magnetic flux shielding member and the first facing surface is adjusted within a predetermined range by using the distance adjusting means. This is because the rotational efficiency can be increased.
The distance adjusting means has a drive mechanism such as an electric type, a hydraulic type, a mechanical type, and the permanent magnet and the core are movable in the vertical direction and the horizontal direction so that the distance between the first magnetic flux shielding member and the first facing surface The one that adjusts is used.
In addition, what is necessary is just to surround the outer surface of a 1st magnetic flux shielding member with a 1st rotor surrounding part, when the outer periphery of a 1st field part is surrounded by a 1st rotor surrounding part.

A seventh aspect of the present invention is the magnetic rotating device according to any one of the first to sixth aspects, wherein the magnetic poles of the end faces are alternately different along the rotation direction of the rotor, and the rotor Formed at the other end portion of the core and the second field portion arranged in parallel with the first field portion so that the magnetic poles of the end faces of the permanent magnets arranged at positions substantially orthogonal to the rotation direction of the first magnetic field portion are different. A second opposing surface facing the second field part via a gap, and a center of the end face of the permanent magnet of the first field part arranged at a position substantially orthogonal to the rotation direction of the rotor; Between the field side center line connecting the center of the end face of the permanent magnet of the second field portion and the core side center line connecting the center of the first facing surface and the center of the second facing surface. The shift angle α is formed.
With this configuration, in addition to the action obtained in any one of claims 1 to 6, the following action is obtained.
(1) A field-side center line connecting the center of the end face of the permanent magnet of the first field part and the center of the end face of the permanent magnet of the second field part, and the center of the first opposing face and the second opposing face Since the shift angle α is formed between the core and the center line connecting the center, when the first field part receives an attractive force (or repulsive force) from the core due to the rotation of the rotor, The second field part receives a repulsive force (or attractive force) from the core, and the magnetic field magnetic force of the core that inhibits the rotation of the rotor at any phase of the rotor can be reduced, and the rotational load torque of the rotor can be reduced. It can be reduced.

Here, the permanent magnet in the second field part is the same as the permanent magnet in the first field part described above, and the description thereof is omitted.
When the magnetic rotating device has a second field part arranged in parallel with the first field part, the core is formed in a substantially U shape or a horseshoe shape, and the first field part and the gap are formed at one end of the core. An opposing first opposing surface is formed, and a second opposing surface opposing the second field portion via a gap is formed at the other end. And the coil is wound by the one end part side and other end part side of each core, and the open and short of the terminals of all the coils are switched by a switching part similarly to Claim 1.
The shift angle α is a field side center connecting the center of the end face of the permanent magnet of the first field portion and the center of the end face of the permanent magnet of the second field portion, which is arranged at a position substantially orthogonal to the rotational direction of the rotor. A core-side center line connecting the center of the first opposing surface and the center of the second opposing surface, and placing the projection plane between the central axis of the rotor and the field-side center line, When the field side center line and the arbitrary point on the core side center line are connected by a straight line (projection line) with the axis as the viewpoint, the field side center line in the projection view formed on the projection plane This is the angle between the core side center line.
As the deviation angle α, 1 to 20 °, preferably 3 to 10 ° is suitably used. As the shift angle α becomes smaller than 3 °, cocking (a phenomenon in which the rotating operation of the rotor becomes jerky) is likely to occur due to the attractive force and repulsive force received by the first field portion and the second field portion due to the magnetic field magnetic force of the core. At the same time, there is a tendency that the effect of reducing the rotational load torque is reduced. As the angle becomes larger than 10 °, a phase difference occurs in the current generated in the coil, and the attractive force and repulsive force tend to decrease. In particular, when the angle is smaller than 1 ° or larger than 20 °, these tendencies become remarkable, so that neither is preferable.

The invention according to claim 8 is the magnetic rotating device according to claim 7, which is formed of a ferromagnetic material, and the end of the second field portion of the permanent magnet on the rotor side and the rotor. It has the structure provided with the 2nd permanent magnet surrounding part which surrounds the both sides of a rotation direction.
With this configuration, in addition to the operation obtained in the seventh aspect, the following operation can be obtained.
(1) It is formed of a ferromagnetic material, and has a second permanent magnet surrounding portion that surrounds the rotor-side end portion of the permanent magnet of the second field portion and both sides in the rotational direction of the rotor, thereby preventing magnetic flux leakage. Since the magnetic flux density at the end surface of the permanent magnet on the core side can be increased, the magnetic flux density guided to the core is also increased, and the repulsive force and attractive force generated by the coil are increased to assist the rotation of the rotor. Excellent rotor rotation stability and drive efficiency.
(2) By having the second permanent magnet surrounding portion surrounding the rotor-side end of the permanent magnet of the second field portion and both sides in the rotational direction of the rotor, the outer periphery of the permanent magnet can be protected, and the second The permanent magnet can be easily and surely fixed at the permanent magnet surrounding portion to prevent the permanent magnet from falling off the rotor, and the assembly workability and durability are excellent.

Here, since the material, shape, structure, etc. of the second permanent magnet surrounding portion are the same as those of the first permanent magnet surrounding portion, description thereof will be omitted.
The first permanent magnet surrounding portion and the second permanent magnet surrounding portion may be formed separately and independently, or may be formed integrally or connected. When the first permanent magnet surrounding part and the second permanent magnet surrounding part are formed integrally or connected, the other end face of the permanent magnet of the first field part and the second side The other end surface of the permanent magnet of the field part can be fixed, and demagnetization of the permanent magnet can be suppressed.

A ninth aspect of the present invention is the magnetic rotating device according to the seventh or eighth aspect, wherein the second rotating unit is formed of a paramagnetic material and surrounds an outer periphery of the second field portion and rotates together with the rotor. It has the structure provided with the rotor surrounding part.
With this configuration, in addition to the operation obtained in the seventh or eighth aspect, the following operation can be obtained.
(1) A second rotor surrounding portion that is formed of a paramagnetic material and that surrounds the outer periphery of the second field portion and rotates together with the rotor has a force in the same direction as the rotation direction of the rotor. Thus, the rotation of the rotor can be accelerated or stabilized, the rotation efficiency and stability are excellent, and the output torque can be increased and stabilized. This is because a magnetic field is generated in the coil during rotation of the rotor, and an eddy current is generated when the second rotor enclosure passes through the coil. It is thought that the force that urges is generated.
(2) By surrounding the outer periphery of the second field part with the second rotor surrounding part, the permanent magnet protruding on the rotor surface does not become a resistance when the rotor rotates, and the rotor can be smoothly rotated. In addition to being excellent in rotation efficiency, it is possible to stabilize the airflow around the outer periphery of the rotor and reduce wind noise, resulting in excellent noise reduction.
(3) The outer surface of the permanent magnet can be securely fixed by the second rotor surrounding portion surrounding the outer periphery of the second field portion, so that the permanent magnet can be prevented from falling, and the stability and operation of fixing the permanent magnet can be prevented. Excellent certainty.

Here, the second rotor go part is the same as the first rotor go part, so the explanation is omitted. The first rotor surrounding portion and the second rotor surrounding portion may be formed independently, or may be formed integrally or connected.

A tenth aspect of the present invention is the magnetic rotating device according to any one of the seventh to ninth aspects, wherein the second field part is a ferromagnetic body and the surface is a raceway surface of the permanent magnet. And a second magnetic flux shielding member that is formed in a mountain shape or an arc shape so as to extend along the core and is fixed to the end surface on the core side of each of the permanent magnets to disperse and equalize the magnetic flux emitted from the surface. ing.
With this configuration, in addition to the action obtained in any one of claims 7 to 9, the following action is obtained.
(1) The second field part is a ferromagnetic material, and the surface is formed in a mountain shape or an arc shape so as to follow the raceway surface of the permanent magnet, and is fixed to the end surface on the core side of each permanent magnet and comes out of the surface. By providing the second magnetic flux shielding member that disperses and equalizes the magnetic flux, the magnetic flux of the permanent magnet is guided to the second magnetic flux shielding member, and the magnetic flux emitted from the second magnetic flux shielding member is guided to the core. The magnetic flux is distributed along the track surface of the permanent magnet and moves toward the core while shifting the timing. Therefore, when the second magnetic flux shielding member passes through the second facing surface of the core, the second magnetic flux shielding member per unit time. The suction force (force that inhibits rotation) received from the core is also dispersed and reduced. Thereby, the rotor can be rotated with a slight driving force, and the rotation efficiency can be improved.

Here, the second magnetic flux shielding member in the second field portion is the same as the first magnetic flux shielding member in the first field portion described above, and thus the description thereof is omitted. Further, the gap between the second magnetic flux shielding member and the second opposing surface of the core is also the same as the gap between the first magnetic flux shielding member and the first opposing surface of the core, and the description thereof is omitted.
In addition, it is preferable that the bottom surface of the second magnetic flux shielding member is in close contact with the end surface of the permanent magnet, similarly to the bottom surface of the first magnetic flux shielding member.
Further, the first magnetic flux shielding member and the second magnetic flux shielding member may be formed independently, or may be formed integrally or connected.

A motor with magnetic force assist according to claim 11 includes the magnetic rotating device according to any one of claims 1 to 10 and a driving motor for rotating the rotating shaft of the magnetic rotating device. It has a configuration.
With this configuration, the following effects can be obtained.
(1) The drive motor for rotating the rotating shaft of the magnetic rotating device can be reduced in size, and the rotor of the magnetic rotating device can be rotated with a small force to obtain a large output (torque). Because it is highly efficient, it can be used to drive generators mounted on automobiles, ships, railways, airplanes, construction machinery, etc., or power generators for private power generation that supply power to factories, stores, houses, etc. It can be used as a suitable energy-saving motor.

Here, at the start of rotation of the rotor of the magnetic rotating device, by opening the terminals of the plurality of coils, the rotational load torque of the rotor can be remarkably reduced and the rotor can be rotated with a slight driving force. Therefore, the drive motor can be reduced in size, but by short-circuiting the ends of the coils of the magnetic rotating device after the start of rotation, the coil is magnetized by the current flowing through the coil by electromagnetic induction, and the coil and the permanent magnet Since the rotation of the rotor can be assisted by the repulsive force and the suction force generated between the two, the driving efficiency can be increased by reducing the power consumption of the driving motor, and the energy saving property is excellent.

According to the magnetic rotating device of the present invention configured as described above and the motor with magnetic assist using the same, the following effects can be obtained.
According to the first aspect of the invention, the following effects can be obtained.
(1) A rotary drive device such as a drive motor can be reduced in size, and is excellent in power saving and power saving at the time of driving, and after starting rotation, each terminal of the coil is short-circuited to the coil by electromagnetic induction. The coil is magnetized by the flowing current, and the rotor is rotated by the repulsive force and attractive force generated between it and the permanent magnet by the action of the magnetic field generated in the coil. Thus, it is possible to provide a magnetic rotating device excellent in rotation efficiency, uniformity, output stability, and energy saving, which can increase the output.

According to invention of Claim 2, in addition to the effect of Claim 1, the following effects are acquired.
(1) All the coils do not overlap with the permanent magnets at the same time, or all the permanent magnets do not overlap with the cores at the same time. Since no repulsive force or attractive force is applied, the rotation of the rotor is not braked, and the rotor is supported by the repulsive force or attractive force acting between any of the coils and the permanent magnet to assist the rotation of the rotor. It is possible to provide a magnetic rotating device excellent in rotation stability, efficiency, and energy saving of a rotor that can be stably rotated.

According to invention of Claim 3, in addition to the effect of Claim 1 or 2, the following effects are acquired.
(1) Since an alternating current flowing through each coil can be converted into a direct current and outputted, a parallel circuit can be formed by connecting the output terminals of each bridge rectifier in parallel, and one switching unit By simply switching on and off the parallel circuit, it is possible to simultaneously switch between short and open between each terminal of all the coils, simplifying the circuit operation simplicity, certainty, stability It is possible to provide an excellent magnetic rotating device.

According to invention of Claim 4, in addition to the effect of any one of Claims 1 thru | or 3, the following effects are acquired.
(1) The leakage of magnetic flux can be suppressed, the magnetic flux density at the end face on the core side of the permanent magnet can be increased, the magnetic flux density guided to the core is high, the repulsive force and attractive force generated by the coil are increased, It is possible to provide a magnetic rotating device excellent in rotation stability and drive efficiency that can assist rotation.

According to the invention described in claim 5, in addition to the effect described in any one of claims 1 to 4, the following effect can be obtained.
(1) Rotational efficiency that allows a force to act on the first rotor surrounding portion in the same direction as the rotational direction of the rotor, accelerates or stabilizes the rotation of the rotor, and increases and stabilizes the output torque. A magnetic rotating device with excellent stability can be provided.

According to the invention described in claim 6, in addition to the effect described in any one of claims 1 to 5, the following effect can be obtained.
(1) When the first magnetic flux shielding member passes through the first opposing surface of the core, the first magnetic flux shielding member receives and reduces the attractive force (force that inhibits rotation) received from the core per unit time, and is slightly Therefore, it is possible to provide a magnetic rotating device that can rotate the rotor with a sufficient driving force and is excellent in the efficiency of rotation.

According to the invention described in claim 7, in addition to the effect described in any one of claims 1 to 6, the following effect can be obtained.
(1) A magnetic rotating device that can reduce the magnetic field magnetic force of the core that inhibits the rotation of the rotor at any phase of the rotor, and can reduce the rotational load torque of the rotor, and is excellent in labor saving and rotating efficiency. Can be provided.

According to the invention described in claim 8, in addition to the effect described in claim 7, the following effect can be obtained.
(1) The leakage of magnetic flux can be suppressed, the magnetic flux density at the end face on the core side of the permanent magnet can be increased, the magnetic flux density guided to the core is high, the repulsive force and attractive force generated by the coil are increased, It is possible to provide a magnetic rotating device excellent in rotation stability and drive efficiency that can assist rotation.

According to the invention described in claim 9, in addition to the effect described in claim 7 or 8, the following effect is obtained.
(1) Rotational efficiency that allows a force to act on the second rotor surrounding portion in the same direction as the rotational direction of the rotor to accelerate or stabilize the rotation of the rotor, increase the output torque, and stabilize the output. A magnetic rotating device with excellent stability can be provided.

According to the invention described in claim 10, in addition to the effect described in any one of claims 7 to 9, the following effect can be obtained.
(1) When the second magnetic flux shielding member passes through the second facing surface of the core, the attractive force (force that inhibits rotation) received from the core per unit time by the second magnetic flux shielding member is also dispersed and made small. Therefore, it is possible to provide a magnetic rotating device that can rotate the rotor with a sufficient driving force and is excellent in the efficiency of rotation.

According to the invention described in claim 11, the following effects can be obtained.
(1) The drive motor for rotating the rotating shaft of the magnetic rotating device can be reduced in size, and the rotor of the magnetic rotating device can be rotated with a small force to obtain a large output (torque). Excellent efficiency, suitable for driving generators mounted on automobiles, ships, railways, aircraft, construction machinery, etc., and for generators for private power generation that supplies power to factories, stores, houses, etc. An energy-saving motor can be provided.

The schematic diagram which shows the structure of the magnetic rotating apparatus of Embodiment 1. FIG. Schematic plan view showing a motor with magnetic assist using the magnetic rotating device of the first embodiment Schematic front view of the magnetic rotating device of the second embodiment AA line sectional view of FIG. (A) Schematic perspective view showing a first permanent magnet surrounding portion and a second permanent magnet surrounding portion of the magnetic rotating device of the second embodiment. (B) First magnetic flux shielding member and second of the magnetic rotating device of the second embodiment. A schematic perspective view showing a magnetic flux shielding member

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below.
(Embodiment 1)
FIG. 1 is a schematic diagram showing the configuration of the magnetic rotating device of the first embodiment, and FIG. 2 is a schematic plan view showing a magnetic assist motor equipped with the magnetic rotating device of the first embodiment.
In FIG. 1, reference numeral 1 denotes a magnetic rotating device according to the first embodiment of the present invention, 2 denotes a rotating shaft of the magnetic rotating device 1, and 3 denotes a rotating shaft 2 formed in a cylindrical shape made of nonmagnetic synthetic resin, stainless steel, or the like. The attached rotor 5 of the magnetic rotating device 1 is permanent so that the magnetic poles of the end face 4a on the side of the core 6 to be described later are alternately different along the rotation direction of the rotor 3 (so that the N pole and the S pole are alternately). The first field portion 5a of the magnetic rotating device 1 in which six magnets 4 are arranged is formed of a paramagnetic material, surrounds the outer periphery of the first field portion 5, and rotates together with the rotor. The rotor surrounding portion 6 is formed of a ferromagnetic material such as iron, silicon iron, permalloy, etc., and is arranged at a distance from the first field portion 5 and is magnetically insulated from each other. The core 6a is formed at one end of each core 6 and has a gap with the first field portion 5. The first facing surface of the opposing core 6, 7 is a plurality of coils wound independently on each core 6, and 8 is a terminal of each of the plurality of coils 7 that is open when the rotor 3 starts rotating. After the rotation of the rotor 3 starts, the switching unit of the magnetic rotating device 1 that short-circuits the terminals of the plurality of coils 7, 9 is a bridge rectifier of the switching unit 8 connected to the terminal of each coil 7, The parallel circuit 10a of the switching unit 8 that connects the output terminals of the bridge rectifier 9 in parallel is a switching unit of the switching unit 8 that switches the parallel circuit 10 on and off.
The core 6 is fixed inside a casing (not shown) made of a nonmagnetic material such as aluminum, stainless steel, or brass, or a synthetic resin while being magnetically insulated by a fastening member such as a bolt. .

As the permanent magnet 4, an alnico magnet, a ferrite magnet, a Fe—Cr—Co magnet, a rare earth magnet such as a samarium-based or neodymium-based magnet can be appropriately selected and used. In order to obtain a large output, it is preferable to use a rare earth magnet having a large magnetic flux density and a large coercive force, particularly a neodymium permanent magnet.
As the permanent magnet 4, a single block-shaped permanent magnet formed in a rectangular parallelepiped or a cube may be used, or a plurality of plate-like permanent magnets stacked and adsorbed may be used.
In the present embodiment, six permanent magnets 4 are arranged at equiangular intervals in the rotation direction of the rotor 3 of the first field part 5, and eight cores 6 are arranged opposite to each other at equiangular intervals. Since the number of permanent magnets 4 and the number of cores 6 are not an integral multiple of the number of the other party, as shown in FIG. 1, all permanent magnets 4 do not overlap with cores 6 at the same time, and the timing is shifted little by little. However, since each coil 7 can be magnetized sequentially and no repulsive force or attractive force acts simultaneously from all the coils 7, the rotation of the rotor 3 is not braked, and any of the coils 7 And the permanent magnet 4 can assist the rotation of the rotor 3 by the repulsive force or the attractive force, and the rotor 3 can be stably rotated with a small force.
The combination of the number of permanent magnets 4 and the number of cores 6 is not limited to this, and it is sufficient that all permanent magnets 4 or cores 6 do not overlap with the opposing core 6 or permanent magnet 4 at the same time.

The operation (usage method) of the magnetic rotating device according to the first embodiment of the present invention configured as described above will be described with reference to the drawings.
FIG. 2 is a schematic plan view showing a motor with magnetic assist using the magnetic rotating device of the first embodiment.
In FIG. 2, reference numeral 20 denotes a motor with magnetic force assist using the magnetic force rotating apparatus 1 according to the first embodiment, 21 denotes a driving motor as a rotation driving device for driving the magnetic force rotating apparatus 1 of the motor 20 with magnetic force assist, and 21a denotes driving. An output shaft 22 of the motor 21 is wound around the rotating shaft 2 of the magnetic rotating device 1 and an output shaft 21a of the driving motor 21 to transmit the output of the driving motor 21 to the magnetic rotating device 1 This is a power transmission member.
The motor 20 with magnetic force assist can obtain a large output (torque) from the other end side of the rotating shaft 2 by being driven by the driving motor 20, but in FIG. At the time, the terminals of the coils 7 are kept open by the switching unit 10a of the switching unit 8. Thereby, since no current flows through the coil 7, the rotational load torque of the rotor 3 can be reduced, and the rotor 3 can be rotated with a slight driving force. Can do.
After the rotation of the rotor 3 starts, the terminals of the coils 7 are short-circuited simultaneously by the switching unit 10a of the switching unit 8. As a result, the repulsive force or the attractive force that assists the rotation of the rotor 3 acts on the permanent magnet 4 by the action of the magnetic field generated in the coil 7, and fluctuations in the rotation of the rotor 3 are suppressed, so that a constant force is always maintained with a small force. Rotation can be obtained, and power consumption of the drive motor 21 can be reduced to increase drive efficiency.
The switching unit 8 only needs to be able to switch between open and short between the terminals of each coil 7, but a device that detects the number of rotations of the rotor 3 and automatically switches between open and short is preferably used. .
The switching unit 8 is not limited to the present embodiment, but instead of forming the parallel circuit 10 using the bridge rectifier 9, a switch (switching unit) that switches between open and short between the terminals of each coil 7 is used. May be provided.

According to the magnetic rotating device in Embodiment 1 of the present invention, the following operation is obtained.
(1) A plurality of coils wound independently on each core and terminals of the plurality of coils are opened at the start of rotation of the rotor, and terminals of the plurality of coils are opened after the rotation of the rotor is started. Because it has a switching part that short-circuits the coil, the terminals of the coils are opened at the start of rotation so that current does not flow through the coil by electromagnetic induction and the coil does not magnetize, so that the rotational load torque of the rotor And the rotor can be rotated with a small driving force. As a result, it is possible to reduce the size of a rotary drive device such as a drive motor, which is excellent in power saving and power saving at the time of driving, and after the rotation starts, each terminal of the coil is short-circuited to the coil by electromagnetic induction. The coil is magnetized by the flowing current, and the rotor is rotated by the repulsive force and attractive force generated between it and the permanent magnet by the action of the magnetic field generated in the coil. The output can be increased and the rotation efficiency, uniformity, output stability and energy saving are excellent.
(2) The rotation load torque of the rotor at the start of rotation can be easily reduced and the rotation can be easily reduced by simply switching the open and short of each terminal of the plurality of coils by the switching unit at the start and after the start of the rotation of the rotor. The rotation of the rotor after the start can be stabilized, it is not necessary to perform a complicated operation during the rotation of the rotor, the operation can be simplified, and the mass productivity and the ease of control are excellent.
(3) Although the magnetic flux guided from the permanent magnet to each core changes according to the rotation of the rotor, when the permanent magnet and the core of the first field part are arranged at equiangular intervals, the magnetic field of the first field part Since the number of permanent magnets and the number of cores are not an integral multiple of the number of the other party, all cores do not overlap with the permanent magnets at the same time or all permanent magnets do not overlap with the cores at the same time, and the timing is shifted little by little. However, each coil can be magnetized one after another, and no repulsive force or attractive force is applied from all coils at the same time. The rotor can be stably rotated by the repulsive force or suction force acting between them, and the rotor can be stably rotated, and the rotation stability, efficiency, and energy saving of the rotor are excellent.
(4) Since the switching unit has a bridge rectifier connected between the terminals of each coil, an alternating current flowing through each coil can be converted into a direct current and output. A parallel circuit can be formed by connecting output terminals in parallel, and the switching and switching of each terminal of all coils can be switched simultaneously by simply switching on and off the parallel circuit with one switching unit. The circuit can be simplified, and the operation is simple, reliable, and stable.
(5) By having a first rotor surrounding portion which is formed of a paramagnetic material and surrounds the outer periphery of the first field portion and rotates together with the rotor, a force is applied to the first rotor surrounding portion in the same direction as the rotation direction of the rotor. Thus, the rotation of the rotor can be accelerated or stabilized, the rotation efficiency and stability are excellent, and the output torque can be increased and stabilized. This is because a magnetic field is generated in the coil during rotation of the rotor, and the eddy current is generated by the passage of the first rotor enclosure, and the first rotor enclosure is moved in the direction of rotation of the rotor by the action of the magnetic field. This is thought to be due to the energizing force.
(6) By surrounding the outer periphery of the first field portion with the first rotor surrounding portion, the permanent magnet protruding on the rotor surface does not become a resistance during rotation of the rotor, and the rotor can be smoothly rotated. In addition to being excellent in rotation efficiency, it is possible to stabilize the airflow around the outer periphery of the rotor and reduce wind noise, resulting in excellent noise reduction.
(7) The outer surface of the permanent magnet can be securely fixed by the first rotor surrounding portion surrounding the outer periphery of the first field portion, so that the permanent magnet can be prevented from falling, and the stability and operation of fixing the permanent magnet can be prevented. Excellent certainty.

According to the motor with magnetic assist using the magnetic rotating device according to the first embodiment of the present invention, the following operation is obtained.
(1) The drive motor for rotating the rotating shaft of the magnetic rotating device can be reduced in size, and the rotor of the magnetic rotating device can be rotated with a small force to obtain a large output (torque). Because it is highly efficient, it can be used to drive generators mounted on automobiles, ships, railways, airplanes, construction machinery, etc., or power generators for private power generation that supply power to factories, stores, houses, etc. It can be used as a suitable energy-saving motor.

(Embodiment 2)
3 is a schematic front view of the magnetic rotating device according to the second embodiment, FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, and FIG. 5 (a) is a first view of the magnetic rotating device according to the second embodiment. FIG. 5B is a schematic perspective view showing the permanent magnet surrounding portion and the second permanent magnet surrounding portion, and FIG. 5B is a schematic perspective view showing the first magnetic flux shielding member and the second magnetic flux shielding member of the magnetic rotating device of the second embodiment. It is. In addition, the thing similar to Embodiment 1 attaches | subjects the same code | symbol, and abbreviate | omits description.
3 and 4, 6b is a second facing surface formed at the other end of the core 6 so as to face a second field portion 15 described later, and 7a and 7b are first facing surfaces 6a of the core 6, respectively. And the coil 15 wound near the second facing surface 6b, so that the magnetic poles of the end surface 14a on the core 6 side of the permanent magnet 14 are alternately different along the rotation direction of the rotor 3 (N pole and S pole are The first field portion 5 is arranged so that the magnetic poles of the end surface 4a of the permanent magnet 4 and the end surface 14a of the permanent magnet 14 which are arranged in a plurality and arranged at positions substantially orthogonal to the rotation direction of the rotor 3 are different. The second field portion of the magnetic rotating device 1 arranged side by side, X is the center of the end surface 4a of the permanent magnet 4 and the second field of the first field portion 5 arranged at a position substantially orthogonal to the rotation direction of the rotor 3. A field-side center line (FIG. 3) connecting the center of the end surface 14a of the permanent magnet 14 of the magnetic part 15; 6 is a core-side center line (FIG. 3) connecting the center of the first facing surface 6a and the center of the second facing surface 6b formed on 6, and α is a deviation angle between the field-side center line X and the core-side center line Y. (FIG. 3).
In the present embodiment, the field side center line X is orthogonal to the rotation direction of the rotor 3, and the core side center line Y is inclined with respect to the field side center line X in the range of the deviation angle α = 1 to 20 °. Cores 6 are arranged so as to intersect.

In the present embodiment, the coil 7a is formed on one end side (near the first facing surface 6a) and the other end side (near the second facing surface 6b) of each core 6 formed in a substantially U shape or horseshoe shape. 7b are wound, but as in the first embodiment, the bridge rectifier 9 is connected between the terminals of the coils 7a and 7b wound around the core 6, and the output of each bridge rectifier 9 is output. By connecting the terminals in parallel to form the parallel circuit 10, the single switching unit 10a switches the parallel circuit 10 on and off, thereby simultaneously shorting and opening the terminals of all the coils 7a and 7b. Can be switched.
Instead of forming the parallel circuit 10 using the bridge rectifier 9, a switch for switching between open and short may be provided between the terminals of the coils 7a and 7b of each core 6.

In FIG. 5, reference numeral 16 a denotes a ferromagnetic material such as iron, silicon iron, permalloy or the like, which is formed in a substantially U-shaped cross section and is fixed to the outer periphery of the rotor 3, and the rotor 3 side end of the permanent magnet 4 and the rotation direction of the rotor 3. The first permanent magnet surrounding portion 16b of the magnetic rotating device 1 that surrounds both sides of the rotor is formed integrally with the first permanent magnet surrounding portion 16a, and the rotor 3 side end of the permanent magnet 14 and both sides of the rotor 3 in the rotational direction. The second permanent magnet surrounding portion 17a of the magnetic rotating device 1 surrounding the portion is formed in an arc shape with a ferromagnetic material such as iron, silicon iron, permalloy, ferrite, alnico alloy (Fe—Al—Ni—Co alloy), etc. The first magnetic flux shielding member 17b of the magnetic rotating device 1 covered on the end surface 4a side of the permanent magnet 4 on the core 6 side is formed integrally with the first magnetic flux shielding member 17a, and the end surface 14a of the permanent magnet 14 on the core 6 side. Magnetic rotation covered on the side The second magnetic flux shielding member 18 of the device 1 is provided through the end portions of the first magnetic flux shielding member 17a and the second magnetic flux shielding member 17b projecting outside the end faces 4a, 14a of the permanent magnets 4, 14, respectively. It is a fastening member such as a non-magnetic bolt that connects the magnetic flux shielding member 17a and the second magnetic flux shielding member 17b to the first permanent magnet surrounding portion 16a and the second permanent magnet surrounding portion 16b.

In the present embodiment, the first permanent magnet surrounding portion 16a surrounding the permanent magnet 4 of the first field portion 5 and the second permanent magnet surrounding portion 16b surrounding the permanent magnet 14 of the second field portion 15 are integrally formed. Although formed, these may be formed independently.
Moreover, in this Embodiment, the 1st magnetic flux shielding member 17a which covers the permanent magnet 4 of the 1st field part 5 and the 2nd magnetic flux shielding member 17b which covers the permanent magnet 14 of the 2nd field part 15 are integrally formed. However, they may be formed independently.
In addition, you may surround the outer periphery of the 1st magnetic flux shielding member 17a and the 2nd magnetic flux shielding member 17b by the rotor surrounding part similar to the 1st rotor surrounding part 5a of Embodiment 1. FIG. At this time, the rotor surrounding portion may be divided into a first rotor surrounding portion surrounding the outer periphery of the first field portion 5 and a second rotor surrounding portion surrounding the outer periphery of the second field portion 15. Moreover, when providing a rotor surrounding part, you may abbreviate | omit the 1st magnetic flux shielding member 17a and the 2nd magnetic flux shielding member 17b.
In the magnetic rotating device 1A according to the second embodiment, in addition to the first field portion 5, the second field portion 15 is provided in parallel. To do. Further, the magnetic rotating device 1A according to the second embodiment can be used as a motor with magnetic assist in combination with the driving motor 21 in the same manner as the magnetic rotating device 1 according to the first embodiment.

According to the generator in the second embodiment of the present invention, in addition to the operations (1) to (4) obtained in the first embodiment, the following operations are obtained.
(1) A first permanent magnet surrounding portion and a second portion that are formed of a ferromagnetic material and surround the rotor-side end portions of the first field portion and the second field portion of the permanent magnet and both sides in the rotational direction of the rotor. By having the permanent magnet surrounding portion, it is possible to suppress the leakage of magnetic flux and increase the magnetic flux density at the end surface on the core side of the permanent magnet, so that the magnetic flux density guided to the core also increases, and the repulsive force and attractive force generated by the coil also increase. It can increase and can assist rotation of a rotor, and it is excellent in the stability of rotation of a rotor, and the efficiency of a drive.
(2) It has the 1st permanent magnet surrounding part and the 2nd permanent magnet surrounding part which surround the edge part of the rotor side of the permanent magnet of a 1st field part and a 2nd field part, and the both sides of the rotation direction of a rotor. As a result, the outer periphery of the permanent magnet can be protected, and the permanent magnet can be easily and securely fixed at the first permanent magnet surrounding portion and the second permanent magnet surrounding portion to prevent the permanent magnet from falling off the rotor. Excellent in durability and durability.
(3) The surface of the ferromagnetic body is formed in an arc shape so as to follow the raceway surface of the permanent magnet, and is fixed to the end face on the core side of each permanent magnet of the first field portion and the second field portion. By providing the first magnetic flux shielding member and the second magnetic flux shielding member that disperse and equalize the magnetic flux that comes out, the magnetic flux of the permanent magnet is guided to the first magnetic flux shielding member and the second magnetic flux shielding member, and the first magnetic flux When the magnetic flux emitted from the shielding member and the second magnetic flux shielding member is guided to the core, the magnetic flux is distributed along the raceway surface of the permanent magnet and is directed to the core while shifting the timing. Therefore, the first magnetic flux shielding member and the second magnetic flux shielding member When the two-flux shielding member passes through the first opposing surface and the second opposing surface of the core, the attractive force (force that inhibits rotation) received from the core per unit time is also dispersed and reduced. Thereby, the rotor can be rotated with a slight driving force, and the rotation efficiency can be improved.
(4) a field side center line connecting the center of the end face of the permanent magnet of the first field part and the center of the end face of the permanent magnet of the second field part, and the center of the first facing face and the second facing face Since the shift angle α is formed between the core and the center line connecting the center, when the first field part receives an attractive force (or repulsive force) from the core due to the rotation of the rotor, The second field part receives a repulsive force (or attractive force) from the core, and the magnetic field magnetic force of the core that inhibits the rotation of the rotor at any phase of the rotor can be reduced, and the rotational load torque of the rotor can be reduced. It can be reduced.

In the first embodiment, as in the present embodiment, the first permanent magnet surrounding portion 16a surrounding the permanent magnet 4 of the first field portion 5 and the permanent magnet 4 of the first field portion 5 are covered. A first magnetic flux shielding member 17a may be provided. However, when the first magnetic flux shielding member 17a is provided, the outer periphery of the first magnetic flux shielding member 17a may be surrounded by the first rotor surrounding portion 5a, or the first rotor surrounding portion 5a may be omitted.
Further, in the magnetic rotating devices 1 and 1A of the first and second embodiments, the case of the inner rotation type in which the rotor 3 rotates inside the core 6 has been described. An outer rotor type in which the rotor rotates, that is, an abduction type can also be used.

The present invention reduces the repulsive force and attractive force acting in the direction that inhibits the rotation of the rotor from the core when the permanent magnet passes through the facing surface of the core, reduces the rotational load torque of the rotor, and reduces the rotor with a slight driving force. The rotation of the rotor by assisting the rotation of the rotor by the action of the magnetic field generated in the coil, and suppressing the fluctuations in the rotation of the rotor to always perform a substantially constant and stable rotation to obtain a large torque. Providing a magnetic rotating device with excellent efficiency, uniformity, stability, and energy saving and a motor with magnetic assist using the same, and by using it for driving a generator, it can efficiently generate power and energy Contributes to eliminating the shortage.

DESCRIPTION OF SYMBOLS 1,1A Magnetic rotating apparatus 2 Rotating shaft 3 Rotor 4,14 Permanent magnet 4a, 14a End surface 5 First field part 5a First rotor surrounding part 6 Core 6a First opposing surface 6b Second opposing surface 7, 7a, 7b Coil DESCRIPTION OF SYMBOLS 8 Switching part 9 Bridge rectifier 10 Parallel circuit 10a Switching part 15 2nd field part 16a 1st permanent magnet surrounding part 16b 2nd permanent magnet surrounding part 17a 1st magnetic flux shielding member 17b 2nd magnetic flux shielding member 18 Fastening member 20 Magnetic force assist Motor 21a drive motor 21a output shaft 22 power transmission member X field side center line Y core side center line α deviation angle

Claims (11)

1. A rotor attached to the rotating shaft, a first field portion in which a plurality of permanent magnets are arranged so that the magnetic poles of the end faces are alternately different along the rotation direction of the rotor, and the first field portion is spaced apart A plurality of cores having a first opposing surface facing the first field part through a gap at one end and each of which is magnetically insulated, and wound around each of the cores independently A plurality of coils, and a switching unit that opens the terminals of the coils when the rotor starts rotating and shorts the terminals of the coils after the rotor starts rotating. Magnetic rotating device characterized by that.
2. When the permanent magnets and the cores of the first field part are arranged at equiangular intervals, the number of the permanent magnets and the number of cores of the first field part are an integer of the number of the other party The magnetic rotating device according to claim 1, wherein the magnetic rotating device is not doubled.
3. The switching unit, a bridge rectifier connected between terminals of each of the coils, a parallel circuit that connects output terminals of the bridge rectifiers in parallel, and a switching unit that switches on and off of the parallel circuit; The magnetic rotating apparatus according to claim 1, further comprising:
4. A first permanent magnet surrounding portion is formed of a ferromagnetic material and surrounds the end of the permanent magnet of the first field portion on the rotor side and both sides in the rotation direction of the rotor. The magnetic rotating apparatus according to any one of claims 1 to 3.
5. 5. The device according to claim 1, further comprising a first rotor surrounding portion formed of a paramagnetic material and surrounding the outer periphery of the first field portion and rotating together with the rotor. 6. Magnetic rotating device.
6. The first field part is made of a ferromagnetic material, and the surface is formed in a mountain shape or an arc shape so as to follow the raceway surface of the permanent magnet. 6. The magnetic force rotating device according to claim 1, further comprising a first magnetic flux shielding member that disperses and equalizes the magnetic flux.
7. The first field portion and the first field portion are arranged so that the magnetic poles of the end faces are alternately different along the rotation direction of the rotor and the magnetic poles of the end faces of the permanent magnets arranged at positions substantially orthogonal to the rotation direction of the rotor are different. A second field portion arranged side by side and a second facing surface formed at the other end of the core and facing the second field portion via a gap, and substantially orthogonal to the rotational direction of the rotor A field-side center line connecting the center of the end face of the permanent magnet of the first field part and the center of the end face of the permanent magnet of the second field part, and the center of the first counter face 7. The magnetic force rotating device according to claim 1, wherein a deviation angle α is formed between the center side line connecting the center of the second facing surface and the center of the second facing surface. .
8. It is formed of a ferromagnetic material, and includes a second permanent magnet surrounding portion that surrounds the end of the permanent magnet of the second field portion on the rotor side and both side portions in the rotation direction of the rotor. The magnetic rotating apparatus according to claim 7.
9. 9. The magnetic rotating device according to claim 7, further comprising a second rotor surrounding portion formed of a paramagnetic material and surrounding the outer periphery of the second field portion and rotating together with the rotor.
10. The second field portion is a ferromagnetic material, and the surface is formed in a mountain shape or an arc shape so as to follow the raceway surface of the permanent magnet, and is fixed to the end surface on the core side of each permanent magnet and comes out of the surface. The magnetic force rotating apparatus according to any one of claims 7 to 9, further comprising a second magnetic flux shielding member that disperses and equalizes the magnetic flux.
11. 11. A magnetically assisted motor comprising: the magnetic rotating device according to claim 1; and a driving motor for rotating the rotating shaft of the magnetic rotating device.

Images