JPH1066318A - Energy converter using permanent magnet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a linear motor or rotary motor which improves energy efficiency and which does not influence the other controlling equipments. SOLUTION: Magnetic poles of permanent magnets 10, 10 are located between facing ends of an electromagnet which is made by winding exciting coils 13, 13 around a pair of yoke members 11, 11 which are made of magnetic material to form an attractive magnetic field generating mechanism 1. Attraction blocks 8, 9 which are made of magnetic material are drawn near to the magnetic poles and are held parallelly with the magnetic poles. By applying positive or negative DC current to the exciting coils 13, 13, a magnetic field of the same direction as that of the parallelly located permanent magnets or of the opposite direction is generated. The magnetic field is generated or canceled alternately to attract or release the attraction blocks 8, 9 and thereby electric energy is converted to kinetic energy.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy conversion device using a permanent magnet capable of generating a linear or rotating magnetic field by using a permanent magnet to generate a linear or rotating magnetic field. .

[0002]

2. Description of the Related Art In a conventional AC motor or AC induction motor, an exciting current is applied by applying an AC voltage with a required phase difference to an exciting winding provided on a magnetic pole of a stator. The rotating magnetic field is generated by rotating the rotor, and the rotor is rotated in synchronization with the rotating magnetic field.

[0003] Similarly, in a linear motor, an exciting current is caused to flow by applying an AC voltage with a predetermined phase difference to a large number of exciting windings arranged in a straight line, thereby forming a linearly moving magnetic field. Provides propulsion to the body.

In other words, a propulsion magnetic field generator for generating a rotating magnetic field or a linear magnetic field used in a conventional rotary motor or linear motor, etc., supplies an exciting current by shifting the phases of a plurality of exciting coils. Thus, a propulsion magnetic field directed in a required direction is generated.

[0005]

For this reason, in an energy conversion device such as a rotary motor or a linear motor using a conventional propulsion magnetic field generator, a rotational speed or a position moving speed is set based on a phase difference of the propulsion magnetic field. It depends on the frequency of the AC power supply, and it is difficult to set the rotation speed to an arbitrary value except for some motors such as a wound induction motor,
Generally, the rotation speed is controlled using an inverter.
For this reason, the inverter generates a high frequency from the device, and thus has a problem in that a nearby control device is damaged.

Further, in the conventional device, since a rotational force or a straight-line force as kinetic energy is proportional to an applied current, a power supply capacity corresponding to a required torque is required, and improvement in energy efficiency is required. It had been.

In order to solve these problems, the applicant of the present invention, prior to the filing of the present application, controlled the magnetic flux of a permanent magnet to “ON” and “OFF” as an energy conversion device using a permanent magnet and performed parallel or rotary motion. Have invented a motor that obtains

[0008] The present invention has been made in view of the above problems, and it is possible to dramatically improve the energy efficiency of the motor and to use an energy using a permanent magnet that does not affect other control devices. It is an object to provide a conversion device.

[0009]

An energy conversion apparatus using a permanent magnet according to the present invention comprises a pair of electromagnets each having an exciting coil wound on a yoke member having a U-shaped magnetic body. In contrast to the attraction magnetic field generating mechanism in which the two magnetic poles of the permanent magnet are brought into contact between both yoke member ends of the electromagnets to form a closed magnetic circuit, a magnetic material corresponding to the two permanent magnets of the attraction magnetic field generating mechanism is provided. The attracting block is carried in parallel with both magnetic poles, and a positive or negative DC current is applied to the exciting coil to generate magnetic poles in the same direction or a different direction as the permanent magnets arranged in parallel to attract or release the attracting block. The gist is to convert electric energy into kinetic energy.

More specifically, a plurality of the attracting magnetic field generating mechanisms are arranged in a circumferential direction, and a rotating body having a plurality of pairs of attracting blocks arranged on an inner periphery and an outer periphery is referred to as a attracting magnetic field generating mechanism. The movable body is rotated by displacing the control current in a predetermined direction by applying a control current having a phase shifted to the excitation coil of each of the attraction magnetic field generating mechanisms by axially mounting the shaft at the concentric position and rotatably facing each other. A dynamic motor can be configured.

In addition, a plurality of the attracting magnetic field generating mechanisms are arranged in a linear direction, and a plurality of the plurality of pairs of attracting blocks are opposed to each other and supported in a displaceable manner in the arrangement direction of the attracting magnetic field generating mechanisms. A linear motor can be configured by applying a control current with a phase shifted to the exciting coil of the generating mechanism and displacing the moving body in a predetermined direction in a straight line.

According to the above construction, the attracting magnetic field generating mechanism provided with the electromagnet so as to abut the magnetic pole in parallel with the permanent magnet attracts or releases the attraction block of the magnetic material to generate straight or rotational force. Therefore, when a current is applied so that the electromagnet has a magnetic pole in the same direction as the permanent magnet, the attracting block is attracted by the sum of the magnetic force of the permanent magnet and the magnetic force of the electromagnet, and a large output is obtained. Can be. Therefore, high output can be obtained by using the permanent magnet together, and energy efficiency can be improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The principle of a preferred embodiment of an energy conversion device using a permanent magnet according to the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes an attraction magnetic field device 1, which faces a pair of "U" -shaped yoke members 11, 11 in which a plate-shaped soft magnetic material such as permalloy is stacked, and which faces each columnar portion 1.
Excitation coils 13, 13 are wound around each of the magnets 2, 12, and a closed magnetic path for forming a magnetic field of the same direction is formed by closely interposing permanent magnets 10, 10 between a pair of opposite end portions 14, 14, respectively. doing.

At this time, the exciting coils 13 and 13 are wound in the same direction with respect to the closed magnetic path.
The currents applied to the magnets 3 and 13 are connected so as to form a magnetic field in the opposite direction to the magnetic field of the permanent magnets 10 and 10.

Reference numeral 8 denotes an attraction block made of a magnetic material such as soft iron, which has a structure in which it is displaced relative to one permanent magnet 10 of the attraction magnetic field generating mechanism 1 in the direction of arrow A. Reference numeral 9 denotes an attraction block made of a magnetic material such as soft iron, and the other permanent magnet 10 of the attraction magnetic field generating mechanism 1.
And is mechanically integrated with the suction block 8 so as to be displaced relative to the same direction in the direction of arrow A.

The attracting magnetic field generating mechanism 1 includes a yoke member 1
Permanent magnets 10 and 1 are attached to opposed ends 14 and 14 of
0 so that the same magnetic poles appear as the two excitation coils 13, 13
When a current is applied to the magnetic head, a magnetic field summed with the magnetic flux density at the magnetic poles of the permanent magnets 10 and 10 is generated at the ends 14 and 14 facing the suction blocks 8 and 9 ("ON" state). The suction blocks 8, 9 are strongly sucked.

The exciting coil 1 of the yoke members 11, 11
When the current applied to the third and third magnets 13 is cut off, the magnetic path including the two permanent magnets 10 and 10 is closed, and the magnetic flux is generated between the ends 14 and 14 of the two yoke members 11 and 11. The magnetic field disappears, and the attraction force to the attraction blocks 8, 9 disappears ("OFF" state).

The attraction blocks 8 and 9 disposed on both sides of the attraction magnetic field generating mechanism 1 are attracted or released by the magnetic force generated or lost by the "ON" or "OFF" state of the attraction magnetic field generating mechanism 1, and this operation is performed. By controlling the timing, the energy conversion device that outputs the rotational force or the propulsive force can be configured.

[0020]

【Example】

[Embodiment 1] FIGS. 3 to 5 show a rotary motor using a rotating magnetic field generator showing an embodiment of the energy conversion apparatus of the present invention.

The rotary motor is provided on an end plate 3 of a casing 2 in which a large number (12 in the drawing) of attracting magnetic field generating mechanisms 1 (1a, 1b, 1c...) Are made of a non-magnetic material such as aluminum. The stator 5 is arranged and fixed concentrically around the rotation shaft 4 so as to be equidistant and equiangular. The rotary shaft 4 is rotatably mounted on the end plates 3 and 3 via rotary bearings 6 and 6 composed of ball bearings, and has one end serving as an output shaft 4a. It protrudes outside of. 3a is a bearing retainer.

Each of the attraction magnetic field devices 1 (1a, 1b, 1c)
..) Are opposed to a pair of “U” -shaped yoke members 11, 11 in which a plate-shaped soft magnetic material such as permalloy is stacked, and the exciting coils 13,
13 and a pair of opposite ends 14, 1 facing each other.
Closed magnetic paths for forming magnetic fields in the same direction are formed by closely interposing permanent magnets 10, 4 between the four. At this time, the exciting coils 13, 13 are wound in the same direction with respect to the closed magnetic path, and the current applied to the exciting coils 13, 13 forms a magnetic field in the opposite direction to the magnetic field of the permanent magnets 10, 10. Connected as follows.

Reference numeral 7 denotes a curler made of a non-magnetic material such as aluminum which is extrapolated and fixed to the rotating shaft 4. The curler 7 has an outer peripheral surface on a cylindrical support portion 7a. Adsorption blocks 8 (8a, 8b, 8c) made of magnetic materials such as soft iron at a large interval (9 in the drawing)
..) Are arranged and fixed to form an inner rotor 15 which is rotated and displaced in proximity to the inner circumference of each attracted magnetic field generating mechanism 1 of the stator 5 as the rotating shaft 4 rotates. Become.

Reference numeral 16 denotes a rotary disk which is made of a non-magnetic material such as aluminum and is externally fixed to the rotary shaft 4. A large number (nine in the drawing) of suction blocks 9 (9a, 9b, 9c ...) made of a magnetic material such as soft iron are arranged and fixed, and each of the stators 5 is rotated with the rotation of the rotation shaft 4. An outer-circumference-side rotor 17 that rotates and displaces close to the outer periphery of the attraction magnetic field generating mechanism 1 is configured.

Each attracting magnetic field generating mechanism 1 of the rotary motor
When an electric current is applied to both exciting coils 13 so that the same magnetic poles as the permanent magnets 10 appear at the opposed ends 14 of the yoke members 11, the inner circumferential rotor 1
The permanent magnets 10, 1 are attached to the ends 14, 14, which face the suction block 8 of FIG.
A magnetic field summed with the magnetic flux density at the magnetic pole of zero (“ON” state) is generated, and the inner rotor 15 and the outer rotor 1 corresponding to the attracted magnetic field generating mechanism 1 that has been turned “ON”
The suction blocks 8 and 9 of 7 are strongly sucked.

The exciting coil 1 of the yoke members 11, 11
When the current applied to the third and third magnets 13 is cut off, the magnetic path including the two permanent magnets 10 and 10 is closed, and the magnetic flux is generated between the ends 14 and 14 of the two yoke members 11 and 11. The magnetic field disappears, and the attraction force to the attraction blocks 8, 9 disappears ("OFF" state). The attraction block 8 of the inner rotor 15 and the attraction block 9 of the outer rotor 17 are selectively attracted by the magnetic force generated or lost by the "ON" or "OFF" state of the attraction magnetic field generating mechanism 1, and the rotational displacement is generated. Then, the rotation shaft 4 is rotated to obtain a rotation output.

In the rotary motor having the above-mentioned structure, twelve magnetic attracting field generating mechanisms 1 are arranged and fixed in the circumferential direction of the stator 5 and the circumferential direction of the inner rotor 15 and the outer rotor 17 in the circumferential direction. This shows an embodiment of a structure in which nine suction blocks 8 and 9 are provided. Each of the attracting magnetic field generating mechanisms 1 constituting the rotary motor has four pairs of 12 pairs (one pair of 3 pairs of excitation coils) 1.
A current is applied to each of the yoke members 11 and 11 so that the yoke members 11 and 11 are turned "ON" (see FIG. 6), and the suction blocks 8 and 9 are sequentially rotated in one rotation direction. Is selectively suctioned and rotationally displaced, and a rotational output is obtained from the rotational shaft 4.

[Embodiment 2] FIG. 7 shows the stator 5 and the inner rotor 15 of the rotary motor described in the embodiment of the invention.
And a plurality of rotating magnetic field generating structures 18 (in the drawing, 4) in the axial direction of the rotating shaft 4.
Are shown) in parallel.

In FIG. 7, the total rotating magnetic field generating structure 18, 1
8, the attracting magnetic field generating mechanism 1 of the stator 5, the inner rotor 1
5 and the suction block 9 of the outer rotor 17 are provided at the same angular position. However, the rotating magnetic field generating structures 18, 18,. A structure with a changed phase can also be used.

[Embodiment 3] FIG. 8 shows the stator 5 and the inner rotor 15 of the rotary motor described in the embodiment of the present invention.
And a plurality of rotating magnetic field generating structures 18 (in the drawing, 3 in the radial direction of the rotating shaft 4).
This shows a stacked configuration. That is, the outer peripheral rotor 17 of the inner diameter side rotating power generator 18 is configured to also serve as a part (support structure) of the inner peripheral side rotor 15 of the outer diameter side rotating power generator 18. is there.

In FIG. 8, the entire rotating magnetic field generating structure 18, 1
8, the attracting magnetic field generating mechanism 1 of the stator 5, the inner rotor 1
5 and the suction block 9 of the outer rotor 17 are provided at the same angular position, but the rotational magnetic field generating structures 18, 18. A structure in which the phase is different from that of the generating structure 18 can also be used.

[Embodiment 4] FIGS. 9 and 10 show an embodiment in which the principle of the present invention is embodied as a straight-moving magnetic field generating structure and applied to a linear motor. Attraction magnetic field generating mechanism 1 (1a, 1
b, 1c) are the same as those of the embodiment of the invention, and a pair of “U” -shaped yoke members 11, 11 in which plate-shaped soft magnetic materials such as permalloy are stacked are opposed to each other. An excitation coil 13, 13 is wound around each of the columnar portions 12, 12, and a permanent magnet 10, 10 is closely interposed between a pair of opposite end portions 14, 14 to form a magnetic field in the same direction. A magnetic path is formed. At this time, the exciting coils 13, 13 are wound in the same direction with respect to the closed magnetic path, and the current applied to the exciting coils 13, 13 forms a magnetic field in the opposite direction to the magnetic field of the permanent magnets 10, 10. Connected as follows.

The attraction magnetic field generating mechanism 1 (1a, 1b, 1)
c ...) are fixedly mounted at equal intervals (L) between the machine frames 20, 20 made of a non-magnetic material such as aluminum, and the base frames 20, 20 are vertically supported by two pairs of support rails. Member 2
Slide bearings 2 such as thrust bearings for 1, 21
The rail is slidably supported via 2, 22 ... in the rail direction,
The moving element 23 is constituted.

Are formed of a non-magnetic material such as aluminum, and a suction block 8 (made of a magnetic material such as soft iron) is provided between each pair of upper and lower support rail members 21 and 21. 8a, 8b, 8c
..) And 9 (9a, 9b, 9c...) Are arranged and suspended so as to be close to the permanent magnets 10 and 10 of the attraction magnetic field generation mechanism 1 at an interval of 2/3 of the arrangement interval L of the attraction magnetic field generation mechanism 1, An upper stator 24 and a lower stator 25 are configured.

In the linear motor having the above structure, the current is supplied to the exciting coils 13 of each attraction magnetic field generating mechanism 1 such that the yoke members 11 are driven "ON" by delaying the phase every 1/3 cycle. , And the suction blocks 8 and 9 are sequentially selected and sucked in one direction to be displaced, so that a propulsion output is applied to the moving member 23.

9 and 10, the attraction magnetic field generating mechanism 1 has a structure in which the attraction magnetic field generating mechanism 1 is arranged in a line in the direction of the support rail member 21. However, the attraction magnetic field mechanism 1 is layered in a vertical / horizontal row. Needless to say, it is possible to make the structure as described above.

[0037]

As described above, the energy conversion device using the permanent magnet according to the present invention has the attracting magnetic field generating mechanism provided with the electromagnet so that the magnetic pole abuts in parallel with the permanent magnet. Because it generates a straight or rotational force by being attracted or released, if an electric current is applied so that the electromagnet has a magnetic pole in the same direction as the permanent magnet, the attracting block is the sum of the magnetic force of the permanent magnet and the magnetic force of the electromagnet. It becomes attracted by the magnetic force, and a large output can be obtained.

Further, according to the energy conversion device using the permanent magnet of the present invention, a plurality of layers of the attracting magnetic field generating mechanism can be easily arranged in series or in parallel, so that a motor having a large output can be constituted. Has the features that can be.

Further, according to the energy conversion device using the permanent magnet of the present invention, a high output can be obtained by the use of the permanent magnet, heat generation is extremely small, and there is almost no heat loss, so that energy efficiency can be improved. It has such features that it can be performed and does not affect other control devices, and the effect of the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing the principle of an energy conversion device using a permanent magnet according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a partially cutaway front view of a rotary motor showing a first embodiment of the energy conversion device using a permanent magnet according to the present invention.

FIG. 4 is a longitudinal sectional view of the same.

FIG. 5 is a conceptual diagram of the attraction magnetic field generation mechanism.

FIG. 6 is a timing chart of a current applied to the attraction magnetic field generating mechanism.

FIG. 7 is a perspective view of a rotary motor showing a second embodiment of the energy conversion device using a permanent magnet according to the present invention.

FIG. 8 is a perspective view of a rotary motor showing a third embodiment of the energy conversion device using a permanent magnet according to the present invention.

FIG. 9 is a perspective view of a linear motor showing a fourth embodiment of the energy conversion device using a permanent magnet according to the present invention.

FIG. 10 is a front view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attraction magnetic field device 10 Permanent magnet 11 Yoke member 12 Column part 13 Excitation coil 14 End 2 Case 3 End plate 4 Rotating shaft 5 Stator 6 Rotating bearing 7 Curler 8 Suction block 9 Suction block 15 Inner circumference side rotor DESCRIPTION OF SYMBOLS 16 Rotating disk 17 Outer rotor 18 Rotating magnetic field generating structure 20 Machine frame 21 Bearing rail member 22 Sliding bearing 23 Moving element 24 Upper stator 25 Lower stator

Claims (3)

[Claims] 1. A pair of electromagnets each formed by winding an exciting coil are opposed to a yoke member of a magnetic material having a U-shape, and two magnetic poles of a permanent magnet are provided between both yoke member ends of the electromagnets. With respect to the attraction magnetic field generating mechanism that abuts and forms a closed magnetic path, an attraction block of a magnetic material is supported in parallel with both magnetic poles corresponding to both permanent magnets of the attraction magnetic field generation mechanism, and the excitation coil is positive or negative. An energy conversion device using a permanent magnet that generates a magnetic pole in the same direction or a different direction as a permanent magnet arranged in parallel by applying a direct current to attract or release the attraction block to convert electric energy into kinetic energy. 2. A plurality of said attracting magnetic field generating mechanisms are arranged in a circumferential direction, and a rotating body having a plurality of said plurality of pairs of attracting blocks arranged on an inner periphery and an outer periphery thereof is coaxially positioned with the attracting magnetic field generating mechanism. A permanent magnet, wherein the movable body is rotationally displaced in a predetermined direction by applying a control current having a phase shifted to an excitation coil of each of the attraction magnetic field generating mechanisms. Energy conversion device using 3. A plurality of said attracting magnetic field generating mechanisms are arranged in a linear direction, and a plurality of said plurality of pairs of attracting blocks are opposed to each other in a direction of arrangement of said attracting magnetic field generating mechanisms so as to be relatively displaceable. An energy conversion device using a permanent magnet, wherein a control current having a phase shifted is applied to an excitation coil of a generation mechanism to displace the moving body in a predetermined direction.