JPH07123662A - Single facing pole induction generator - Google Patents

Abstract

PURPOSE:To improve an energy conversion efficiency by a method wherein a process to increase the number of fluxes coupling with one winding, decrease the number of fluxes coupling with the adjacent winding is repeated to combine a periodical rectangular wave electromotive force from 1st, 2nd, 3rd and 4th windings and output the synthesized electromotive force. CONSTITUTION:Stator cores 7, 8, 9 and 10 are provided on the circle whose center is a rotary shaft 3. An N-pole monopole rotor 11N and an S-pole monopole rotor 11S are attached to the rotary shaft 3 so as to face each other. Windings 7c and 9c are wound on the respective stator cores 7 and 9 clockwise and windings 8c and 10c are wound on the respective stator cores 8 and 10 counter-clockwise. If triangular electromotive forces are induced in the respective windings 7c, 8c, 9c and 10c by the rotating magnetic fields of the monopole rotors 11N and 11S, a rectangular wave electromotive force which is the combined electromotive force of the four triangular electromotive forces is outputted between output terminals 18 and 19. With this constitution, a demagetizing field can be absorbed and a high energy conversion efficiency can be obtained.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a single opposed pole induction generator.

An induction generator has been known as one of the electric machines for a long time, and there are various types depending on the application.
For example, in addition to power plants, ships, aircraft, etc.
It has been developed and widely used for things such as household items and leisure items.

These induction generators convert kinetic energy into electric energy, and are required to have high energy conversion efficiency also from the viewpoint of increasing the energy utilization rate.

[0004]

2. Description of the Related Art As is well known, an induction generator generates an induced electromotive force in a coil in proportion to the rate at which the number of magnetic fluxes linked to the coil is changed (Faraday's law of electromagnetic induction). ) It utilizes the phenomenon. According to Lenz's law, the induced electromotive force generated by electromagnetic induction is generated in a direction in which a current that prevents a change in the number of magnetic flux is generated.

For example, as shown in FIGS. 10A and 10B, if the magnetic flux Φ orthogonal to the circular coil 1 moves from A to B in the direction of the arrow, the current I ₁ according to Faraday's law of electromagnetic induction. And the pointer of the galvanometer 2 is clockwise (+
Direction) and then returns to the zero position. On the other hand, if the magnetic flux Φ moves from B to C in the arrow direction, a current I ₂ flows, the pointer of the galvanometer 2 swings counterclockwise (-direction), and then returns to the zero position.

In general, an induction generator generates an induced electromotive force according to Fleming's right-hand rule in a conductor depending on whether the conductor cuts the magnetic flux or the magnetic flux cuts the conductor as described with reference to FIG. It is considered as a structure.

Among them, all the parts to be the rotor are N-sided and S-sided alternating rotating magnetic poles on one face, and 2 poles are NS facing each other, and 4 poles, 6 poles, ... -S-N-
It has the shape of S ~.

However, as a special case in the prior art, an electromotive force is generated when one conductor cuts, moves or rotates a magnetic flux in the same direction, a direct current is generated through a sliding ring, and the same magnetic field is generated. There is something that can be said to be a special existence of unipolar induction machines that have the same directional mobility.

[0009]

However, in the above-mentioned conventional induction generator, the rotor is composed of a ferrite or rare earth magnet having a high energy product and a small reversible permeability (recoil permeability), or In the magnetic circuit configuration with the same magnetic pole, it was considered that the demagnetization of the demagnetizing field generation of the induction coil was reduced between the one magnetic circuit to improve the energy conversion efficiency, but the demagnetizing effect by the demagnetizing field was considered. That is, the reduction of the energy conversion efficiency due to the demagnetizing field has been an important issue.

The present invention has been made in view of the above points, and an object thereof is to provide a single opposed magnetic pole induction generator having high energy conversion efficiency.

[0011]

In order to solve the above-mentioned problems, in the invention according to claim 1, a rotating shaft which is made of a non-magnetic material and is driven from the outside and a circumference around the rotating shaft are provided. They are arranged with a slight gap between each other, and have an even number of four or more stator cores that have the same arc-shaped cross section, and are axially attached to the rotating shaft and surrounded by an even number of stator cores. A first monopole rotor having first and second magnetic poles having the same polarity and facing an even number of stator cores in an arc shape in a direction orthogonal to the axis;
No. 1, which is axially attached to the rotary shaft so as to face the monopole rotor and is surrounded by an even number of stator cores, and which faces the even number of stator cores in the same direction as the first and second magnetic poles in an arc shape. And a second magnetic pole and a second monopole rotor having a third magnetic pole and a fourth magnetic pole having opposite polarities, respectively. Each arc length of the first and second magnetic poles, and the second
The arc lengths of the third and fourth magnetic poles of the monopole rotor of are equal to the arc lengths of the even number of stator cores, and
A first winding wound around a first stator core among an even number of stator cores, and a second winding wound adjacent to the first stator core in a direction opposite to the winding direction of the first winding. The second winding wire, the third winding wire wound around the third stator core adjacent to the second stator core in the same direction as the winding direction of the first winding wire, and the third winding wire adjacent to the third stator core. A fourth winding wound in a direction opposite to the winding direction of the third winding is connected to the fourth stator core with a predetermined connection, and the first and second monopole rotors are driven to rotate. Of the first to fourth windings when the rotating magnetic field is sequentially excited by the even number of stator cores according to the positions of the first, second, third, and fourth magnetic poles. The number of magnetic fluxes linked to one winding increases and at the same time another winding adjacent to one winding By the number of crossing magnetic fluxes are repeated to reduce the periodic rectangular wave electromotive force and a configuration is synthesized and output by the first and second and third and fourth winding.

According to the second aspect of the invention, the rotating shaft is made of a non-magnetic material and is disposed from the outside, and the rotating shaft and the rotating shaft are arranged on the circumference of the rotating shaft with a slight gap therebetween. Is an arc-shaped identical number of four or more stator cores, and is evenly attached to the rotating shaft and surrounded by an even number of stator cores. A first monopole rotor having first and second magnetic poles of the same polarity that face each other, and a first monopole rotor that faces the first monopole rotor and is axially mounted on a rotating shaft and surrounded by an even number of stator cores. And a second mono pole having third and fourth magnetic poles having opposite polarities to the first and second magnetic poles facing the even number of stator cores in an arc shape in the same direction as the first and second magnetic poles, respectively. Equipped with a pole rotor Just an opposite pole induction generator,
The arc lengths of the first and second magnetic poles of the first monopole rotor and the arc lengths of the third and fourth magnetic poles of the second monopole rotor are the same as the arc lengths of the even number of stator cores. And a first winding wire wound around the first stator core in a predetermined direction among the even number of stator cores, and a first winding wire that is connected in series with the first winding wire and is adjacent to the first winding wire. A second winding wound around the second stator core in a direction opposite to the predetermined direction; and a second winding wound in a predetermined direction on a third stator core which is connected in series with the second winding and is adjacent to the second stator core. And a fourth winding wire that is wound in a direction opposite to the predetermined direction on a fourth stator core that is connected in series with the third winding wire and that is adjacent to the third stator core. The first and second monopole rotors are driven to rotate. When a rotating magnetic field that is sequentially excited by an even number of stator cores according to the positions of the first, second, third, and fourth magnetic poles is generated, one of the first to fourth windings has a chain. A first series that outputs a periodic first rectangular wave electromotive force is obtained by repeating that the number of magnetic fluxes that intersect with each other increases and at the same time the number of magnetic fluxes that link with another winding adjacent to one winding decreases. A circuit, a fifth winding wound around the first stator core in a direction opposite to the predetermined direction, and a sixth winding connected in series with the fifth winding and wound around the second stator core in the predetermined direction. No. 7, the sixth winding is connected in series with the sixth winding, and the seventh winding is wound around the third stator core in the opposite direction to the predetermined direction, and the seventh winding is connected in series with the fourth winding.
And an eighth winding wire wound around the stator core in a predetermined direction, and the first and second monopole rotors are driven to rotate so that the first, second, third, and fourth magnetic poles When a rotating magnetic field that is sequentially excited by an even number of stator cores depending on the position is generated, the number of magnetic fluxes interlinking with one of the fifth to eighth windings increases, and at the same time, the number of magnetic fluxes linked to one winding increases. A second series circuit that outputs a second rectangular wave electromotive force having the same period as that of the first rectangular wave electromotive force in a phase opposite to that of the first rectangular wave electromotive force by repeating a decrease in the number of magnetic fluxes interlinking with another adjacent winding. , The rotational position detecting means for detecting the rotational positions of the first and second monopole rotors, and the first rectangular wave electromotive force from the first series circuit according to the detection signal from the rotational position detecting means. The positive component and the positive component of the second square wave electromotive force from the second series circuit are generated. Comprising a switching means for selectively outputting alternately every corner 180 °, configured to output a DC electromotive force combining to.

[0013]

According to the invention of the constitution described in claim 1, the first
And the second monopole rotor is rotationally driven to generate a rotating magnetic field that is sequentially excited in an even number of stator cores according to the positions of the first, second, third, and fourth magnetic poles. , The number of magnetic fluxes linked to one winding of the first to fourth windings is increased, and at the same time the number of magnetic fluxes linked to another winding adjacent to one winding is decreased. Since the electromotive force generated when the number of magnetic fluxes interlinking with the windings and the electromotive force generated when the number of magnetic fluxes interlinking with other windings are combined are periodic, that is, an AC rectangular wave The electromotive force is combined with the first, second, third, and fourth windings and output.

According to the invention of the structure described in claim 2, the first
In the series circuit of, the first and second monopole rotors are rotationally driven to drive the first and second and third and fourth monopole rotors.
When a rotating magnetic field that is sequentially excited by an even number of stator cores is generated according to the positions of the magnetic poles, the number of magnetic fluxes linked to one of the first to fourth windings increases and at the same time The periodic first rectangular wave electromotive force is output by repeating the decrease in the number of magnetic fluxes interlinking with another winding adjacent to the winding, and the second series circuit includes the first and second windings. The first and second monopole rotors are driven to rotate.
And when a rotating magnetic field is sequentially excited in an even number of stator cores according to the positions of the third and fourth magnetic poles,
By repeating that the number of magnetic fluxes interlinking one of the fifth to eighth windings increases and the number of magnetic flux interlinking another winding adjacent to the one winding decreases at the same time. It acts so as to output a second rectangular wave electromotive force having the same period as that of the rectangular wave electromotive force in the opposite phase.

Then, the switching means responds to the detection signal from the rotational position detecting means, and the positive component of the first rectangular wave electromotive force from the first series circuit and the second component from the second series circuit. The positive component of the rectangular wave electromotive force is alternately and selectively output for each electrical angle of 180 °, and the DC electromotive force is combined and output.

[0016]

FIG. 1 is a diagram showing a first embodiment of the present invention,
1A is a side perspective view, and FIG. 1B is 1 in FIG. 1A.
It is a cross-sectional arrow view shown by B-1B '.

In FIGS. 1 (A) and 1 (B), 3 is a rotary shaft made of a non-magnetic material and driven externally, 4a and Ab are bearings for bearing the rotary shaft 3, and 5a and 5b are bearings 4a and Ab. Arranged flange, 6 is flange 5
It is a cylindrical case cover that supports a and 5b.

[0018] on a circumference around the rotary shaft 3, with a slight gap g ₁ equal, the stator core 7 and 8,
9 and 10 are provided. Each stator core 7,
8, 9, and 10 have the same arc-shaped cross section.

The rotating shaft 3 has an N pole monopole rotor 1
1N and an S pole monopole rotor 11S are axially opposed to each other as shown in the figure. The monopole rotors 11N and 11S are surrounded by the stator cores 7, 8, 9 and 10 with a slight rotation gap g ₀ .

Windings 7c and 9c are wound around each of the stator cores 7 and 9 in the right-hand direction in FIG. 1 (B). Further, windings 8c and 10c are wound around the respective stator cores 8 and 10 in a left-handed manner in FIG. 1 (B). The windings 7c, 8c, 9c and 10c are connected by a predetermined connection as described later.

Here, FIG. 2 is a view showing the monopole rotor 11N, FIG. 2 (A) is a longitudinal sectional view, and FIG. 2 (B) is a side view.

The monopole rotor 11N has arc-shaped magnetic poles 12 and 1 facing each other and having the same N pole and facing each other by 180 °.
Have three. The arc-shaped magnetic poles 12 and 13 are shaped so as to oppose each of the stator cores 7, 8, 9, and 10 described above in an arc shape.

A rotor piece 14 is provided inside the arcuate magnetic poles 12 and 13. Rotor piece 1
No. 4 was magnetized to the S pole, and was composed of a medium in which a few percent of non-ferrous molten metal was mixed with low carbon iron, and the magnetic field was kept balanced so that the saturation point approximated by the magnetic field of homogeneity. It is an iron core.

Here, FIG. 3 is a view showing the monopole rotor 11S, FIG. 3 (A) is a longitudinal sectional view, and FIG. 3 (B) is a side view.

The monopole rotor 11S has arcuate magnetic poles 15 and 1 which are 180 ° opposite to each other and have the same S pole.
Have six. The arc-shaped magnetic poles 15 and 16 are shaped to face the stator cores 7, 8, 9, and 10 described above in an arc shape.

A rotor piece 17 is provided inside the arcuate magnetic poles 15 and 16. Rotor piece 1
No. 7 was magnetized to the N pole, and was composed of a medium in which low carbon iron was mixed with a few percent of non-ferrous molten metal, and the magnetic field was kept balanced so that the magnetic saturation would approximate the saturation point under the same magnetic field. It is an iron core.

The arc-shaped magnetic poles 12, 13, 15 and 1
Each arc length of 6 is the same, and each stator core 7, 8,
It is equal to the arc length inside 9 and 10. That is, the arc length is obtained by dividing the length of the circumference of 360 ° by subtracting 4 g ₁ into four equal parts. In addition, FIGS.
In, the rotation gap g ₀ = R ₁ -R.

Next, FIGS. 4A to 4C are views showing the connection method of each winding, where T ₁ is the winding start of each winding, T ₂ is the winding end of each winding, and 18 and 19 are outputs. Indicates a terminal.

That is, FIG. 4A shows a serial connection method, FIG. 4B shows a serial-parallel connection method, and FIG. 4C shows a parallel connection method. The series connection method is suitable for high voltage output because the electromotive force induced in each winding is output in addition. The parallel connection method is suitable for large-current output because the current due to the electromotive force induced in each winding is added and output.

Here, the power generation action in the case of the serial connection method will be described with reference to FIGS. 5 and 6.

FIG. 5 shows the monopole rotors 11S and 11
It is a figure which shows a mode that the rotating magnetic field by N interlinks with each winding 7c-10c like a model.

In FIG. 5, Φ ₁ and Φ ₂ are rotating magnetic fluxes that rotate and move on the circumference of 2πR, and the arc-shaped magnetic pole 12
The positions of the magnetic fluxes are shown when the magnetic poles 15 and 13 are opposed to the entire surface of the stator core 7 and the arc-shaped magnetic poles 15 and 16 are opposed to the entire surface of the stator core 9.

At this time, the magnetic flux Φ ₁ forms the following magnetic path.

Rotor piece 14 (S) -arc-shaped magnetic pole 12
(N) - rotation gap g ₀ - stator core 7 rotates gap g ₀
-Arc-shaped magnetic pole 15 (S) -Rotor piece 17 (N) At this time, the magnetic flux Φ ₂ forms the following magnetic path.

Rotor piece 14 (S) -arc-shaped magnetic pole 13
(N) - rotation gap g ₀ - stator core 9 rotates gap g ₀
-Arc-shaped magnetic pole 16 (S) -rotor piece 17 (N) Therefore, a parallel magnetic path is formed, and in this state, the magnetic flux Φ ₁ is linked to the winding 7c and the magnetic flux Φ ₂ is linked to the winding 9c. There is.

Now, the change in the interlinking state between each winding and Φ ₁ will be described, focusing only on the rotation of the magnetic flux Φ ₁ .

In the output voltage waveform of FIG. 6, the magnetic flux Φ ₁ is entirely linked to the winding 10c at the time t ₁ , and the time t ₂
At time t ₃ , all are interlinked with winding 7c, at time t ₃ all are interlinked with winding 8c, at time t ₄ all are interlinked with winding 9c, and at time t ₅ all are interlinked with winding 10c. As described above, it is assumed that the magnetic flux Φ ₁ makes one rotation at a constant speed in the clockwise direction in FIG.

From time t ₁ to time t ₂ , the magnetic flux Φ
_{Since the} number of magnetic fluxes interlinking with the winding 10c in ₁ decreases, the winding 10c generates a decreasing triangular wave electromotive force as indicated by I in FIG.

At the same time, the number of magnetic fluxes interlinking with the winding 7c in the magnetic flux Φ ₁ increases, so that the winding 7c generates an increasing triangular wave electromotive force as indicated by I'in FIG. Therefore, a positive rectangular wave obtained by adding and synthesizing these triangular waves is output between the output terminals 18 and 19.

From time t ₂ to time t ₃ , the magnetic flux Φ
_{Since the} number of magnetic fluxes interlinking with the winding 7c in ₁ decreases, the winding 7c generates an increasing triangular wave electromotive force as indicated by II in FIG.

At the same time, the number of magnetic fluxes interlinking with the winding 8c in the magnetic flux Φ ₁ is increased, so that the winding 8c in FIG.
A decreasing triangular wave electromotive force is generated as indicated by II '. Therefore, a negative rectangular wave obtained by adding and synthesizing these triangular waves is output between the output terminals 18 and 19.

From time t ₃ to time t ₄ , the magnetic flux Φ
_{Since the} number of magnetic fluxes interlinking with the winding 8c of ₁ decreases, the winding 8c generates a triangular wave electromotive force that decreases as indicated by III in FIG.

At the same time, the number of magnetic fluxes interlinking with the winding 9c in the magnetic flux Φ ₁ increases, so that the winding 9c in FIG.
The increasing triangular wave electromotive force is generated as indicated by III '. Therefore, a positive rectangular wave obtained by adding and synthesizing these triangular waves is output between the output terminals 18 and 19.

From time t ₄ to time t ₅ , the magnetic flux Φ
_{Since the} number of magnetic fluxes interlinking with the winding 9c in ₁ is decreased, the winding 9c generates an increasing triangular wave electromotive force as indicated by IV in FIG.

At the same time, the number of magnetic fluxes interlinking with the winding 10c in the magnetic flux Φ ₁ increases, so that the winding 10c generates a triangular wave electromotive force that decreases as indicated by IV 'in FIG.
Therefore, a negative rectangular wave obtained by adding and synthesizing these triangular waves is output between the output terminals 18 and 19.

As described above, while the magnetic flux Φ ₁ makes one rotation, rectangular wave electromotive force having a period T / 2 is synthetically output as shown in FIG. Since the magnetic flux Φ ₁ makes one rotation and the magnetic flux Φ ₂ makes one rotation, the same rectangular wave electromotive force is synthesized and output.
The electromotive force obtained between 8 and 19 is actually twice as large as that in FIG.

As described above, according to this embodiment, it is possible to obtain a single opposed magnetic pole induction generator having a high energy conversion efficiency by absorbing a demagnetizing field. As a result of commissioned testing, we were able to achieve a high energy conversion efficiency with a maximum drive torque of 1 / 5.2 compared to conventional generators of other companies.

FIG. 7 is a diagram showing a second embodiment of the present invention, FIG. 7 (A) is a side perspective view, and FIG. 7 (B) is FIG. 7 (A).
It is a cross-sectional arrow view shown in middle 7B-7B '.

In FIGS. 7 (A) and 7 (B), 3 is a rotating shaft made of a non-magnetic material and driven from the outside, 4a and Ab are bearings for bearing the rotating shaft 3, and 5a and 5b are bearings 4a and Ab. Arranged flange, 6 is flange 5
It is a cylindrical case cover that supports a and 5b.

[0050] on a circumference around the rotary shaft 3, with a slight gap g ₁ equal, the stator core 7 and 8,
9 and 10 are provided. Each stator core 7,
8, 9, and 10 have the same arc-shaped cross section.

The rotating shaft 3 has an N-pole monopole rotor 1
1N and an S pole monopole rotor 11S are axially opposed to each other as shown in the figure. The monopole rotors 11N and 11S are surrounded by the stator cores 7, 8, 9 and 10 with a slight rotation gap g ₀ .

Windings 7c and 9c are wound around the respective stator cores 7 and 9 in the right-hand winding in FIG. 7B, and windings 27c and 29c are wound in the left-hand winding. Further, windings 8c and 10c are wound around the respective stator cores 8 and 10 in the left-hand winding in FIG. 7B, and windings 28c and 30c are wound in the right-hand winding. Each winding 7c, 8c, 9c, 10c, 2
7c, 28c, 29c, and 30c are connected by a predetermined connection as described later.

A magnetic sensor 31, which is a rotational position detecting means, is arranged between the stator cores 7 and 10. A magnetic sensor 32, which is a rotational position detecting means, is also arranged between the stator cores 7 and 8. Magnetic sensors 31 and 32
Detects the rotational position of the monopole rotors 11N and 11S by detecting the magnetic field.

The monopole rotor 11N and the monopole rotor 11S have the shapes shown in FIGS. 2 and 3 as described above.

That is, the monopole rotor 11N has arcuate magnetic poles 12 and 13 which are 180 ° opposite to each other and have the same N pole. Arc-shaped magnetic poles 12 and 13
Has a shape facing the above-mentioned stator cores 7, 8, 9, and 10 in an arc shape.

A rotor piece 14 is provided inside the arcuate magnetic poles 12 and 13. Rotor piece 1
No. 4 was magnetized to the S pole, and was composed of a medium in which a few percent of non-ferrous molten metal was mixed with low carbon iron, and the magnetic field was kept balanced so that the saturation point approximated by the magnetic field of homogeneity. It is an iron core.

The monopole rotor 11S includes arc-shaped magnetic poles 15 and 1 facing each other at 180 ° and having the same S pole.
Have six. The arc-shaped magnetic poles 15 and 16 are shaped to face the stator cores 7, 8, 9, and 10 described above in an arc shape.

A rotor piece 17 is provided inside the arc-shaped magnetic poles 15 and 16. Rotor piece 1
No. 7 was magnetized to the N pole, and was composed of a medium in which low carbon iron was mixed with a few percent of non-ferrous molten metal, and the magnetic field was kept balanced so that the magnetic saturation would approximate the saturation point under the same magnetic field. It is an iron core.

The arc-shaped magnetic poles 12, 13, 15 and 1
Each arc length of 6 is the same, and each stator core 7, 8,
It is equal to the arc length inside 9 and 10. That is, the arc length is obtained by dividing the length of the circumference of 360 ° by subtracting 4 g ₁ into four equal parts. Further, in FIGS. 2, 3 and 7, the rotation gap g ₀ = R ₁ -R.

Next, FIG. 8 is a diagram showing a wire connection system for each winding, where T ₁ is the winding start of each winding, T ₂ is the winding end of each winding, and 18 and 19 are output terminals.

Each winding forms two series circuits, and these series circuits are alternately selected and connected by switches SW1 and SW2 which are switching means. The switches SW1 and SW2 are switched according to the detection signals from the magnetic sensors 31 and 32.

As shown in FIG. 8, the first series circuit has a winding 7c which is wound right around the stator core 7, and a stator core 8 which is connected in series with the winding 7c and is adjacent to the stator core 7. The wound winding 8c and a stator core 9 that is connected in series with the winding 8c and is adjacent to the stator core 8
A winding wire 9c wound in a right-handed manner, and a winding wire 10c wound in a left-handed manner on a stator core 10 connected in series with the winding wire 9c and adjacent to the stator core 9.

The second series circuit includes, as shown in FIG. 8, a winding wire 27c wound leftwardly on the stator core 7, and a winding wire 28c rightwardly wound on the stator core 8 and connected in series with the winding wire 27c. , A winding wire 29c that is serially connected to the winding wire 28c and is wound left-handedly around the stator core 9.
Is connected in series with the winding wire 29c, and the stator core 10
And a winding wire 30c wound in a right-handed manner.

According to the above-mentioned structure, the monopole rotors 11N and 11S are rotationally driven to rotate so that the stator cores 7 to 10 are sequentially excited in accordance with the positions of the arc-shaped magnetic poles 12, 13, 15, and 16. When a magnetic field is generated, the number of magnetic fluxes interlinking with one of the windings 7c to 10c increases at the same time as that described with reference to FIGS. By repeating the decrease in the number of magnetic fluxes interlinking with the winding of
The first rectangular wave electromotive force similar to that of FIG. 6 with the period of 2 is output from the first series circuit (7c to 10c).

Further, at this time, the number of magnetic fluxes linked to one of the windings 27c to 30c increases, and at the same time the number of magnetic fluxes linked to another winding adjacent thereto decreases. , A second rectangular wave electromotive force having a phase opposite to that of the first rectangular wave electromotive force and having the same period, that is, a phase opposite to that of FIG. 6, is output from the second series circuit (27c to 30c).

Then, the switches SW1 and SW2 are switched at every mechanical angle of 90 ° in response to the detection signals from the magnetic sensors 31 and 32, so that the first series circuit from the first series circuit as shown in FIG. Positive components I and III of rectangular wave electromotive force and positive component I of second rectangular wave electromotive force from second series circuit
I and IV are alternately selected for each electrical angle of 180 ° and output between the output terminals 18 and 19.

That is, according to the present embodiment, the demagnetizing field is absorbed and the positive DC electromotive force is combined and output with high energy conversion efficiency. Further, by shifting the switching phase by 180 °, negative DC electromotive force can be combined and output.

[0068]

As described above, according to the first aspect of the present invention, the rotating magnetic fields sequentially excited in the even number of stator cores are generated by rotationally driving the first and second monopole rotors. At this time, the number of magnetic fluxes linked to one winding of the first to fourth windings increases, and at the same time the number of magnetic fluxes linked to another adjacent winding decreases. Since the electromotive force generated when the number of magnetic fluxes that link to the coil increases and the electromotive force that occurs when the number of magnetic fluxes that link to other windings decrease, the periodic AC rectangular wave electromotive force is combined. It is output and the demagnetizing field is absorbed, and there is a feature that high Ernegi conversion efficiency can be achieved.

According to the second aspect of the invention, in the first series circuit, a rotating magnetic field sequentially excited in an even number of stator cores by rotationally driving the first and second monopole rotors is used. When it is generated, the number of magnetic fluxes linked to one winding of the first to fourth windings increases and at the same time the number of magnetic fluxes linked to another adjacent winding decreases. And outputs the first rectangular wave electromotive force, and at this time, the second series circuit increases the number of magnetic fluxes interlinking with one winding of the fifth to eighth windings and at the same time, By repeating the decrease in the number of magnetic fluxes interlinking with other windings,
The square wave electromotive force of is output. Then, the switching means, in response to the detection signal from the rotational position detecting means, the positive component of the first rectangular wave electromotive force from the first series circuit and the second rectangular wave electromotive force from the second series circuit. The positive component of the electric power is alternately and selectively output for each electrical angle of 180 ° and the DC electromotive force is synthetically output, so that the demagnetizing field is absorbed and the high Ernegi conversion efficiency can be achieved.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a monopole rotor 11N according to the first embodiment of the present invention.
FIG.

FIG. 3 is a monopole rotor 11S according to the first embodiment of the present invention.
FIG.

FIG. 4 is a diagram showing a wiring system according to a first embodiment of the present invention.

FIG. 5 shows that the rotating magnetic field of the first embodiment of the present invention is applied to each winding 7c to
It is a figure which shows a mode that it interlinks with 10c like a model.

FIG. 6 is a diagram showing an output voltage waveform according to the first embodiment of the present invention.

FIG. 7 is a diagram showing a second embodiment of the present invention.

FIG. 8 is a diagram showing a wiring system according to a second embodiment of the present invention.

FIG. 9 is a diagram showing an output voltage waveform according to the second embodiment of the present invention.

FIG. 10 is a diagram illustrating the principle of an induction generator.

[Explanation of symbols]

3 rotating shafts 7-10, 27-30 stator cores 7c, 8c, 9c, 10c, 27c, 28c, 29c,
30c Winding 11N, 11S Monopole rotor 12, 13, 15, 16 Arc magnetic pole 31, 32 Magnetic sensor SW1, SW2 switch

Claims (2)

[Claims] 1. A rotating shaft which is made of a non-magnetic material and is driven from the outside, and is arranged on the circumference around the rotating shaft with a slight gap therebetween, and has the same arc-shaped cross section. And an even number of four or more stator cores, which are axially attached to the rotating shaft and are surrounded by the even number of stator cores, and arc-shaped to face the even number of stator cores in a direction orthogonal to the rotating shaft. The same polarity as each other
A first monopole rotor having a second magnetic pole, and a first monopole rotor that is axially attached to the rotary shaft so as to face the first monopole rotor and is surrounded by the even number of stator cores;
A second monopole having third and fourth magnetic poles opposite in polarity to the first and second magnetic poles facing the even number of stator cores in a circular arc shape in the same direction as the first and second magnetic poles. A single opposed pole induction generator comprising a rotor, wherein the arc lengths of the first and second magnetic poles of the first monopole rotor and the arc length of the second monopole rotor. The arc lengths of the third and fourth magnetic poles are the same as the arc lengths of the even number of stator cores, and a first winding wire wound around the first stator core of the even number of stator cores, A second winding wound around the second stator core adjacent to the first stator core in a direction opposite to the winding direction of the first winding, and a third stator core adjacent to the second stator core. A third winding wound in the same direction as the winding direction of the first winding, and The fourth winding wire wound in the opposite direction to the winding direction of the third winding wire is connected to the fourth stator core adjacent to the first winding wire by a predetermined connection, and the first winding wire and the second winding wire are connected. When a rotating magnetic field is sequentially excited in the even number of stator cores according to the positions of the first, second, third and fourth magnetic poles by rotationally driving the monopole rotor of By repeating that the number of magnetic fluxes linked to one winding of the first to fourth windings increases and the number of magnetic fluxes linked to another winding adjacent to the one winding decreases at the same time. , The periodic rectangular wave electromotive force
And a single opposed magnetic pole induction generator characterized by combining and outputting by the second, third and fourth windings. 2. A rotating shaft which is made of a non-magnetic material and which is driven from the outside, and is arranged on the circumference of the rotating shaft with a slight gap therebetween, and has the same arc-shaped cross section. And an even number of four or more stator cores, which are axially attached to the rotating shaft and are surrounded by the even number of stator cores, and arc-shaped to face the even number of stator cores in a direction orthogonal to the rotating shaft. The same polarity as each other
A first monopole rotor having a second magnetic pole, and a first monopole rotor that is axially attached to the rotary shaft so as to face the first monopole rotor and is surrounded by the even number of stator cores;
A second monopole having third and fourth magnetic poles opposite in polarity to the first and second magnetic poles facing the even number of stator cores in a circular arc shape in the same direction as the first and second magnetic poles. A single opposed pole induction generator comprising a rotor, wherein the arc lengths of the first and second magnetic poles of the first monopole rotor and the arc length of the second monopole rotor. The arc lengths of the third and fourth magnetic poles are the same as the arc lengths of the even-numbered stator cores, and the first stator core of the even-numbered stator cores is wound in a predetermined direction. And a second winding wound in a direction opposite to the predetermined direction on a second stator core that is connected in series with the first winding and is adjacent to the first stator core.
A third winding wire wound in a predetermined direction on a third stator core which is connected in series with the second winding wire and is adjacent to the second stator core, and the third winding wire. A fourth winding wire wound in a direction opposite to the predetermined direction around a fourth stator core that is connected in series and is adjacent to the third stator core. The first and second monopole rotors. When a rotating magnetic field that is sequentially excited by the even-numbered stator cores is generated according to the positions of the first, second, third, and fourth magnetic poles by being driven to rotate, By repeating the increase in the number of magnetic fluxes interlinking with one of the fourth windings and the decrease in the number of magnetic fluxes interlinking with another winding adjacent to the one winding, the periodic first A first series circuit that outputs one rectangular wave electromotive force, and the first stator core to the predetermined series circuit. A fifth winding wound in the opposite direction to the second winding, and a sixth winding connected in series with the fifth winding and wound around the second stator core in the predetermined direction.
And a sixth winding wire connected in series with the sixth winding wire and wound around the third stator core in a direction opposite to the predetermined direction.
And an eighth winding wire that is connected in series with the seventh winding wire and that is wound around the fourth stator core in the predetermined direction, and the first and second monopole rotors are The first and second and third and fourth are driven to rotate.
When a rotating magnetic field that is sequentially excited in the even number of stator cores is generated according to the positions of the magnetic poles, the number of magnetic fluxes linked to one of the fifth to eighth windings increases. At the same time, the number of magnetic fluxes interlinking with another winding adjacent to the one winding is repeatedly reduced to generate a second rectangular wave electromotive force having the same period as that of the first rectangular wave electromotive force in the opposite phase. A second series circuit for outputting, a rotational position detecting means for detecting rotational positions of the first and second monopole rotors, and a first serial circuit according to a detection signal from the rotational position detecting means. The positive component of the first rectangular wave electromotive force from the circuit and the positive component of the second rectangular wave electromotive force from the second series circuit are alternately and selectively output every 180 electrical degrees. A single opposing magnetic pole, characterized in that it comprises a switching means for Electrical generator.