JP2009095151A - Rotary type electromagnetic generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary type electromagnetic generator which minimizes the use quantity of permanent magnet to provide light weight, and achieves high efficiency. <P>SOLUTION: The rotary type electromagnetic generator comprises: a rotary shaft 2; a rotary magnet holder 4 rotatably constituted by being rotatably connected to the rotary shaft 2; a plurality of permanent magnets 11, 12, 13, 14 disposed on the rotary magnet holder 4 with the same polarity poles facing each other, the rotary magnet holder 4; and generating coils 21, 22, 23, 24. The plurality of permanent magnets 11, 12, 13, 14 of the rotary magnet holder 4 are disposed on the rotary shaft 2 side of the portion where the same polarity poles face each other, and the other permanent magnets 15, 16, 17, 18 are disposed so as to face the plurality of permanent magnets 11, 12, 13, 14 in the same polarity poles. The generating coils 21, 22, 23, 24 are disposed on the side opposite to the other permanent magnets 15, 16, 17, 18, holding the plurality of permanent magnet 11, 12, 13, 14 in between. Thereby, the rotary type electromagnetic generator 1 is constituted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rotary electromagnetic generator in which a plurality of magnets are arranged so that the same magnetic poles face each other, and a power generation coil is arranged around the magnets, thereby improving power generation efficiency.

  In recent years, portable electronic devices such as mobile phone terminals and game machines have become widespread, and the amount of secondary batteries incorporated therein has been increasing.

On the other hand, in order to maintain and improve the global environment, research and development of batteries that reduce the environmental load as much as possible are being actively conducted.
Under such circumstances, a manual generator that can supply electronic equipment with the required amount of electrical energy generated when needed, or charging that converts energy that is normally unconsciously consumed into electrical energy for charging A vessel is being considered.
The electric energy obtained by such a manual generator or charger can be used as a power source for portable electronic devices and the like.

  And the electromagnetic generator comprised from the some permanent magnet and the some coil is proposed (for example, refer patent document 1).

The proposed configuration of the electromagnetic generator includes a coreless coil and a plurality of permanent magnets with N and S poles facing each other so as to sandwich the coreless coil.
And many coreless coils are arrange | positioned along the outer periphery of the disk shaped base | substrate fixed to the rotating shaft. And with rotation of a rotating shaft, a coreless coil passes between the permanent magnets facing up and down.
By configuring the electromagnetic generator in this way, as shown in the schematic cross-sectional view of FIG. 19, the magnetic flux 104 generated from the N pole of one permanent magnet 101 is mostly the core of the coreless coil 103. , And flows toward the south pole of the other permanent magnet 102, so that sufficient power generation capability can be exhibited.

Japanese Patent Laid-Open No. 2002-320364 (in particular, FIG. 1, FIG. 2, etc.)

  However, in the configuration of the permanent magnet generator described in Patent Document 1, the permanent magnets 101 and 102 are arranged above and below so as to sandwich the coreless coil 103 so as to restrict the flow of magnetic flux. There is a problem that the number of magnets and their weight increase.

In addition, since the coreless coil 103 requires a lead-out wire, it is desirable that the coreless coil 103 is in an immobile / fixed state.
However, in the configuration of the electromagnetic generator described in Patent Document 1, the coreless coil 103 is fixed to a disk-shaped base fixed to the rotating shaft, and the coreless coil 103 rotates in conjunction with the rotating shaft. Therefore, it becomes necessary to use a member such as a conductive brush, and it is expected that the configuration of the lead-out line and the like will be complicated.

  On the other hand, it is conceivable to fix the coreless coil 103 and interlock the permanent magnets 101 and 102 with the rotating shaft. However, as described above, the weight of the rotating shaft increases as the magnet weight increases. This causes a problem of adversely affecting the characteristics.

Further, in order to achieve high-efficiency power generation, in order to ensure that the magnetic flux generated from the permanent magnet 101 penetrates the core portion of the coreless coil 103, the magnets 101 that face each other with the coreless coil 103 sandwiched therebetween. , 102 need to be close to each other.
However, the permanent magnets 101 and 102 and the coreless coil 103 are also affected by variations in the height that may occur due to the large number of permanent magnets 101 and 102, and rotational blurring of the coreless coil 103 that may occur due to rotational movement. In order to avoid a collision, it is essential to ensure a safe dimension for the distance between the permanent magnets 101 and 102 and the coreless coil 103. Therefore, the manufacturing process and condition management become complicated. In addition, when adjacent magnets approach each other, the flow of magnetic flux is disturbed, and the generation of magnetic loss due to the deterioration of power generation efficiency also becomes a problem.

  The present invention has been made in view of the above-described problems, and the object of the present invention is to provide a rotary type that can reduce the amount of use of permanent magnets and can be reduced in weight, and can achieve high efficiency. It is to provide an electromagnetic generator.

  The rotary electromagnetic generator of the present invention is disposed in the rotary magnet holder with at least the rotary shaft, the rotary magnet holder coupled to the rotary shaft and configured to be rotatable, and the magnetic poles facing the same pole. A plurality of permanent magnets, and a rotating magnet holder and at least one power generation coil arranged around the plurality of permanent magnets, and another permanent magnet at a location where the plurality of permanent magnets of the rotating magnet holder face the same polarity. However, while being arrange | positioned so that the same pole may be opposed to several permanent magnets, the power generation coil is arrange | positioned on the opposite side which pinched | interposed several permanent magnets with respect to another permanent magnet.

According to the rotary electromagnetic generator of the present invention described above, by arranging a plurality of permanent magnets on the rotating magnet holder in a state where the magnetic poles face each other with the same polarity, two adjacent permanent magnets whose magnetic poles face each other with the same polarity. Thus, a vertical magnetic flux is generated in a direction substantially perpendicular to the longitudinal direction of the permanent magnet.
Further, another permanent magnet and a power generation coil are provided so as to sandwich a portion where the plurality of permanent magnets of the rotating magnet holder face each other with the same polarity, and the other permanent magnet rotates so as to face the same polarity with the plurality of permanent magnets. Since it is arranged in the magnet holder, a large amount of this vertical magnetic flux can be passed through the power generation coil arranged around the rotating magnet holder and the plurality of permanent magnets. It becomes possible to obtain.

At this time, the other permanent magnets act as auxiliary magnets for a plurality of permanent magnets (main magnets) that generate a vertical magnetic field.
And it becomes possible to pass the strengthened perpendicular magnetic field to the core part of a power generation coil, and to improve the electric power generation amount of these power generation coils.

Therefore, it is possible to obtain a sufficient amount of power generation with a relatively small number of permanent magnets, and the number of permanent magnets can be reduced to reduce the weight. In addition, the efficiency can be improved at the same rotational speed.
Further, since the magnetic flux is not easily disturbed between the magnets, stable and excellent power generation efficiency can be obtained.

  FIG. 1 shows a schematic configuration diagram (perspective view) of a rotary electromagnetic generator as a first embodiment of the rotary electromagnetic generator of the present invention. 2 is an exploded perspective view of the rotary electromagnetic generator 1 shown in FIG.

  The rotary electromagnetic generator 1 includes a rotary shaft 2, a rotary joint 3 that receives the rotary shaft 2, a rotary magnet holder 4 connected to the rotary joint 3, and four permanent magnets attached to the rotary magnet holder 4. 11, 12, 13, 14, and four power generating coils 21, 22, 23, 24 arranged around the rotating magnet holder 4.

  Further, the rotary electromagnetic generator 1 includes four permanent magnets 15, 16, 17, 18 inside the four permanent magnets 11, 12, 13, 14 of the rotating magnet holder 4 (rotational shaft 2 side). Is arranged.

The rotary shaft 2 is configured to be able to rotate clockwise (clockwise) or counterclockwise (counterclockwise) by receiving a force from outside at a portion not shown. In actual use, depending on the external force, there are cases where the rotation is only clockwise or only counterclockwise, and both are rotations.
The rotary magnet holder 4 is connected to the rotary shaft 2 via the rotary joint 3.
The four permanent magnets 11, 12, 13, and 14 are each rod-shaped having an arc shape, polarized (magnetized) in the longitudinal direction, and in two adjacent permanent magnets, the same magnetic pole (N pole, S poles) are arranged so as to face each other.
In the four power generating coils 21, 22, 23, 24, the axial direction W of the winding axis of the coil is perpendicular to the rotating shaft 2 and is perpendicular to the axial direction W of the winding axis of the adjacent power generating coil. So that it is arranged.

The rotary joint 3 is a member for fitting the rotary shaft 2 and connecting the rotary shaft 2 and the rotary magnet holder 4.
For example, when the rotary shaft 2 is made of metal and the rotary magnet holder 4 is made of resin, for example, the inner and outer peripheral portions of the rotary joint 3 are formed in a gear shape and correspondingly In the rotating shaft 2 and the rotating magnet holder 4, the portion coupled to the rotary joint 3 is also formed in a gear shape, so that idling can be suppressed.
The material of the rotary joint 3 is not limited to resin or metal material.
It is also possible to integrally form the rotary shaft 2 and the rotary magnet holder 4 without providing a rotary joint.

The four inner permanent magnets 15, 16, 17, 18 are each in the shape of a bar having an arc shape, polarized (magnetized) in the radial direction around the rotation axis 2, and adjacent to the outer permanent magnet 11. , 12, 13, and 14 are arranged so that the same magnetic poles (N pole and S pole) face each other. Specifically, the S pole of the inner permanent magnet 15 is disposed opposite to the S pole of the outer permanent magnet 11 and the permanent magnet 12, and is opposed to the N pole of the outer permanent magnet 12 and the permanent magnet 13. The north pole of the inner permanent magnet 16 is disposed, the south pole of the inner permanent magnet 17 is disposed opposite to the south pole of the outer permanent magnet 13 and the permanent magnet 14, and the outer permanent magnet 14 and the permanent magnet. The N pole of the inner permanent magnet 18 is arranged so as to face the N pole of the eleven.
These four inner permanent magnets 15, 16, 17, 18 are arranged along a circumference indicated by a broken line in FIG. As a result, the four inner permanent magnets 15, 16, 17, 18 and the four outer permanent magnets 11, 12, 13, 14 are concentric two circumferences (a small circumference and a large circumference). ) Is arranged along.

The four permanent magnets 11, 12, 13, 14 are members for exciting magnetic flux that passes through the cores of the power generation coils 21, 22, 23, 24.
In addition, the four permanent magnets 15, 16, 17, and 18 inside thereof are members for strengthening the magnetic force in the radiation direction (radial direction of the rotating magnet holder 4) around the rotating shaft 2.
Suitable magnets for these permanent magnets include, for example, neodymium magnets that are rare earth magnets mainly composed of neodymium, iron, and boron.

The rotating magnet holder 4 is a member that is coupled to the rotating shaft 2 and that fits / supports and fixes the permanent magnets 11, 12, 13, 14, 15, 16, 17, 18.
As described above, a structure in which the rotating magnet holder 4 is formed integrally with the rotating shaft 2 may be employed.
The material of the rotating magnet holder 4 is not particularly limited as long as it is non-magnetic, but a resin material (thermoplastic resin or thermosetting resin) is suitable in consideration of ease of molding and processing, weight, and the like. And the rotary magnet holder 4 of a desired shape is manufactured by metal mold forming.

A perspective view of the rotating magnet holder 4 shown in FIGS. 1 to 2 is shown in FIG. 3A.
The rotating magnet holder 4 is composed of a circular non-magnetic member, and a permanent magnet storage portion (hole or recess) 5 for mounting the permanent magnets 11, 12, 13, 14, 15, 16, 17, 18. have.

Here, sectional views taken along line XX ′ of the rotating magnet holder 4 of FIG. 3A are shown in FIGS. 3B and 3C, respectively.
The cross-sectional view shown in FIG. 3B shows a case where the permanent magnet storage portion 5 is a hole penetrating up and down the rotating magnet holder 4. In this case, the magnet is bonded to the wall surface of the permanent magnet storage unit 5 so that the magnet does not fall from the hole of the permanent magnet storage unit 5.
The cross-sectional view shown in FIG. 3C shows a case where the permanent magnet storage 5 is a bottomed recess. In this case, the thickness of the rotating magnet holder 4 is slightly larger than the thickness of the permanent magnet, but the easiness of incorporation of the permanent magnet and the reliability related to holding and fixing can be increased.

As shown in the sectional view of FIG. 4, the permanent magnets 12, 14, 15, and 17 may be wrapped with the resin of the rotating magnet holder 4. In this case, since the permanent magnets 12, 14, 15, and 17 are hidden by the resin of the rotating magnet holder 4, the configuration is different from the rotating magnet holder 4 shown in FIG. 3A where the permanent magnet is exposed on the surface.
In order to manufacture the rotating magnet holder 4 having the configuration shown in FIG. 4, for example, the permanent magnets 12, 14, 15, and 17 are floated and arranged inside the mold for the rotating magnet holder 4 using pins or the like. In this state, the resin may be filled in that state. When this manufacturing process is adopted, it can be said that it is desirable to fill the resin in a low temperature / normal temperature environment using a low temperature / normal temperature curable resin. This is to avoid the deterioration of the magnetic characteristics caused by applying a high temperature load to the permanent magnet.

  Moreover, although not shown in figure, you may affix and fix a permanent magnet on the specific arrangement conditions on the rotating magnet holder formed in disk shape.

  Moreover, the top view of the rotary electromagnetic generator 1 of this Embodiment is shown to FIG. 5A, and sectional drawing in YY 'of FIG. 5A is shown to FIG. 5B.

As shown in FIGS. 1, 2, and 5 A, the power generating coils 21, 22, 23, and 24 are each wound in a flat plate shape that is not curved and in a substantially square shape.
The power generating coils 21, 22, 23, and 24 are installed in an immobile state. For example, if a structure such as a stator used as a general motor component is applied, it can be easily installed.
Specifically, as these power generating coils 21, 22, 23, and 24, an insulating film is formed around a conductive wire such as Cu, and the outer peripheral surface thereof is melted by exposure to a heating environment or spraying of an organic solvent. A structure in which a self-bonding wire on which an adhering fusion layer is formed is wound and solidified by winding an air core is preferably used.
The four power generating coils 21, 22, 23, 24 may be connected in series according to the phase of the output voltage, may be connected in parallel, or may be independent circuits. And it is possible to cope with various power generation uses depending on how the power generation coils are connected.

  As described above, the four power generating coils 21, 22, 23, and 24 are such that the axial direction W of the coil winding axis is perpendicular to the rotating shaft 2 and the axial direction of the winding axis of the adjacent power generating coil. It is perpendicular to W. The axial direction W of the winding axis of the power generating coils 21, 22, 23, 24 is perpendicular to the rotational direction of the rotating magnet holder 4 and the permanent magnets 11, 12, 13, 14 (in other words, with respect to the rotational direction R). It can also be said to be the normal direction).

  Subsequently, as described above, the operation and effect when the plurality of permanent magnets 11, 12, 13, and 14 are arranged so that the same magnetic poles face each other will be described with reference to FIGS. 6A and 6B. In FIGS. 6A and 6B, the magnetic field distribution is simplified and shown by one magnetic flux line.

First, as a comparative example, FIG. 6A shows a magnetic field excited by a single permanent magnet.
In the case of a single permanent magnet, the magnetic flux emitted from the N pole and returning to the S pole is in a narrow range on the side of the permanent magnet.

Next, FIG. 6B shows a magnetic field excited by a plurality of permanent magnets having the same magnetic poles opposed to each other with a specific interval.
By causing the same magnetic poles of adjacent permanent magnets to face each other, the magnetic lines of force generated from the N poles act to push each other, and a vertical magnetic flux is formed as shown in FIG. 6B. At this time, it is defined that the vertical magnetic flux corresponds to the magnetic flux generated from the N pole of each permanent magnet and the magnetic flux returning to the S pole.
At this time, although not shown, the above-described vertical magnetic flux (magnetic flux) is also generated on the front side / back side of the page.
And since a perpendicular magnetic flux is formed, compared with the comparative example shown to FIG. 6A, a magnetic field propagation area becomes wide and can maintain a magnetic flux density in a high state also in the position away from a permanent magnet to some extent.

  If the interval between the adjacent permanent magnets is too wide, the vertical magnetic flux shown in FIG. 6B is hardly generated. Therefore, the interval between the adjacent permanent magnets is set so as to generate a desired vertical magnetic flux.

As described above, it is possible to obtain a vertical magnetic flux suitable for passing through the core of the power generating coil by a simple configuration in which a specific interval is provided between a plurality of permanent magnets and the same magnetic poles are opposed to each other. In addition, it is possible to increase the magnetic flux density at a position far from the permanent magnet.
Thereby, the magnetic flux which passes the core part of a power generation coil increases, and there exists an effect that a power generation characteristic becomes favorable.
Therefore, as a means for further improving the magnetic flux density of the vertical magnetic flux, a magnetic metal member typified by a yoke or the like may be disposed between permanent magnets facing each other with the same polarity. By configuring in this way, the density of the magnetic flux passing through the core of the power generation coil is also improved, so that it is possible to obtain greater power generation characteristics.

Next, the magnetic field described in FIG. 6B is applied to the rotary electromagnetic generator 1 of the embodiment shown in FIG. 1 and is shown as a schematic top view in FIG.
In FIG. 7, for convenience of explanation, the configuration and the moving direction of the rotating magnet holder 4 in the rotary electromagnetic generator 1 are assumed to be linear.
As shown in FIG. 7, two types of vertical magnetic fluxes, the vertical magnetic flux generated from the N poles of the permanent magnets 11, 12, 13, and 14 and the vertical magnetic flux returning to the S poles, are respectively in the rotating magnet holder 4. It occurs substantially perpendicular to the rotational direction R. At this time, in FIG. 6B, between the two types of vertical magnetic fluxes, the magnetic flux was divided into the magnetic flux above the permanent magnets 11, 12, 13, and 14 and the magnetic flux below the permanent magnets 11, 12, 13, and 14. However, in the rotary electromagnetic generator according to this embodiment, the other permanent magnets 15, 16, 17, and 18 are arranged to act as auxiliary magnets for a plurality of permanent magnets (main magnets) that generate vertical magnetic flux. The flow of magnetic flux is concentrated on the upper side of the permanent magnets 11, 12, 13, 14.
By comprising in this way, the magnetic flux which passes the core part of the power generation coils 21, 22, 23, and 24 increases, and it can implement | achieve the improvement of electric power generation amount.

At this time, when the rotating magnet holder 4 is rotated by a driving source (not shown), the first vertical magnetic flux generated from the portion where the N poles of the plurality of outer permanent magnets 11, 12, 13, 14 are opposed to each other generates power. In the state shown in FIG. 5A and FIG. 7, the coil passes through the cores of the lower left power generating coil 21 and the upper right power generating coil 23.
Thereafter, when the rotary magnet holder 4 further rotates, the second vertical magnetic flux that is in the opposite direction to the first vertical magnetic flux passes through the core portion of the same power generation coil.
That is, as long as the rotary motion of the rotary magnet holder 4 continues, magnetic fluxes in different directions pass alternately through the cores of the power generation coils 21, 22, 23, 24. As a result, an induced current is generated in the power generation coils 21, 22, 23, and 24.
This is the basic power generation principle of the rotary electromagnetic generator according to the present invention.

FIG. 7 shows the magnetic flux distribution that can be confirmed in a state where the rotary magnet holder is viewed from above. In the rotary electromagnetic generator 1 of the present embodiment, although not shown, the permanent magnet 11, Needless to say, the above-described vertical magnetic flux (magnetic flux) is also generated from 12, 13, 14 to the front side / back side (up and down direction, etc.) of the drawing. Strictly speaking, a magnetic field / magnetic flux is formed around the entire circumference from the north pole to the south pole of the permanent magnet.
In the rotary electromagnetic generator 1 of the present embodiment, the vertical magnetic flux in the vertical direction is not used, but the position and shape of the power generating coil can be changed so as to use the vertical magnetic flux in the vertical direction. .

In the rotary electromagnetic generator 1 according to the present embodiment, when the power generating coils 21, 22, 23, 24 are arranged, the rotational shake of the rotary magnet holder 4 is taken into consideration so as not to collide with the rotary magnet holder 4. It is desirable to ensure safety dimensions.
However, if this safety dimension is taken too much, the vertical magnetic flux will not efficiently pass through the core of the power generation coil.
Preferably, a magnetic field analysis simulation is performed in advance to grasp the distance d of the vertical magnetic flux emitted from or returned to the permanent magnets 11, 12, 13, and 14, and the generator coils 21, 22, within this distance d. The distances D (see FIG. 5A) between the rotating magnet holder 4 and the power generation coil may be selected so that the power generation coils 21, 22, 23, and 24 are arranged so that there are 23 and 24.
As a result, the ease of designing the rotary electromagnetic generator 1 is also improved.
That is, the arrangement dimension conditions of the rotating magnet holder 4 and the power generation coils 21, 22, 23, and 24 are not limited to a fixed value and can be changed as appropriate.

According to the configuration of the rotary electromagnetic generator 1 of the above-described embodiment, the four permanent magnets 11, 12, 13, and 14 are attached to the rotating magnet holder 4 that is connected to the rotating shaft 2 and rotates. These four permanent magnets 11, 12, 13, and 14 are arranged so that the same magnetic poles face each other.
The power generating coils 21, 22, 23, and 24 are provided around the rotating magnet holder 4 so that the axial direction W of the winding axis is perpendicular to the rotating direction R of the rotating magnet holder 4.
As a result, a vertical magnetic field can be generated from the four permanent magnets 11, 12, 13, and 14 with the same magnetic poles facing each other, and can pass through the cores of the power generating coils 21, 22, 23, and 24. In the coils 21, 22, 23 and 24, a sufficient amount of power generation can be obtained.

Furthermore, according to the configuration of the rotary electromagnetic generator 1 of the present embodiment, the four permanent magnets 15, 16, 17, and 18 are arranged inside the four permanent magnets 11, 12, 13, and 14. The inner permanent magnets 15, 16, 17, 18 are polarized (magnetized) in the radial direction around the rotation axis 2, and the adjacent outer permanent magnets 11, 12, 13 are configured. , 14 are arranged so that the same magnetic poles face each other.
Thereby, the magnetic force in the radiation direction is strengthened by the inner permanent magnets (auxiliary magnets) 15, 16, 17, and 18, and the vertical magnetic field generated from the outer permanent magnets (main magnets) 11, 12, 13, and 14 is changed to the outer side. And can be strengthened upward. Then, the strengthened vertical magnetic field is allowed to pass through the cores of the power generation coils 21, 22, 23, and 24, and the power generation amount of these power generation coils 21, 22, 23, and 24 can be improved.

  Therefore, it is possible to obtain a sufficient amount of power generation with a small number of permanent magnets 11, 12, 13, 14, 15, 16, 17, 18 compared to the configuration proposed in Patent Document 1. It is possible to reduce the weight by reducing the number of permanent magnets. In addition, the efficiency can be improved at the same rotational speed.

That is, the rotary electromagnetic generator 1 of the present embodiment has an effect that the structure is simple and an excellent power generation effect can be obtained.
In addition, it is possible to reduce the weight, and since the power generation coil has an air core structure, it is possible to suppress the generation of so-called cogging torque, and as a result, it is possible to efficiently generate power with a small rotational torque. Therefore, it can be said that it is particularly suitable for power generation using manual or weak wind power / hydraulic power.

In the rotary electromagnetic generator 1 of the above-described embodiment, the axial direction W of the winding shafts of the power generating coils 21, 22, 23, 24 is the rotational direction R of the rotating magnet holder 4 and the permanent magnets 11, 12, 13, 14. It was the structure which is a perpendicular | vertical direction.
However, if a perpendicular magnetic field by the permanent magnet passes through the core portion of the power generation coil, a power generation effect can be obtained. Therefore, the axial direction of the winding axis of the power generation coil is completely relative to the rotation direction of the rotary magnet holder and the permanent magnet. It is not necessary to be perpendicular to the angle, and some degree of angular tolerance is allowed.

In the rotary electromagnetic generator 1 of the above-described embodiment, the four power generation coils 21, 22, 23, and 24 are arranged around the rotary magnet holder 4, but the number of power generation coils is limited to four. Not.
Power generation is possible if at least one power generation coil is provided.

  For example, similarly to the rotary electromagnetic generator 1 of the above-described embodiment, if the number of power generation coils is the same as the number of outer permanent magnets and the power generation coils are arranged in correspondence with the positions and intervals of the permanent magnets, the efficiency It is thought that it can generate electricity well.

  Also, for example, by increasing the number of power generation coils than the number of outer permanent magnets and devising the connection of each power generation coil, it is possible to obtain a higher frequency output for the same number of revolutions. As a result, it is possible to obtain larger electric power energy.

  The rotating magnet holder 4 shown in FIG. 3A is composed of one circular non-magnetic member. For example, four 90-degree fan-shaped non-magnetic members having permanent magnet storage portions are bonded together. A rotating magnet holder may be configured.

The shape of the permanent magnet may be an arc shape as in the above-described embodiment, or may be a straight bar shape or a bent “bow” shape.
Here, FIG. 8A shows a plan view of the form in which the outer permanent magnets 11, 12, 13, and 14 are formed as straight rods, and the outer permanent magnets 11, 12, 13, and 14 are formed in a “U” shape. A top view of the configuration is shown in FIG. 8B. In these drawings, the illustration of the power generation coil is omitted.
In each form shown in FIGS. 8A and 8B, the inner permanent magnets (auxiliary magnets) 15, 16, 17, and 18 are arranged in a rod shape, and are arranged radially along the radiation centering on the rotating shaft 2. The magnetic pole on the permanent magnet side is the same as that of the adjacent outer permanent magnet.
In each of the forms shown in FIGS. 8A and 8B, a vertical magnetic flux can be generated from the outer permanent magnets 11, 12, 13, and 14, and the power generation coil provided around the rotating magnet holder 4 can be passed through. Further, the vertical magnetic field can be strengthened by the inner permanent magnets 15, 16, 17 and 18.

  Considering the power generation principle described above, the following configurations can be considered as modified examples related to the first embodiment.

As a first modification, FIG. 9A shows a plan view of a rotary electromagnetic generator, and FIG. 9B shows a cross-sectional view taken along line YY ′ of FIG. 9A.
The rotary electromagnetic generator shown in FIGS. 9A and 9B is basically the same as the configuration of the first embodiment shown in FIG. 1, but the generator coils 21, 22, 23, and 24 are rotating magnets. It differs in that it is curved along the outer peripheral shape of the holder 4.
For example, when the diameter of the power generation coil is increased, such as by increasing the number of turns of the power generation coils 21, 22, 23, 24, the configuration of the rotary electromagnetic generator is compared with the configuration illustrated in FIG. It is excellent in that the floor area can be reduced.

As a second modification, schematic configuration diagrams of a rotary electromagnetic generator are shown in FIGS. 10A, 10B, 11A, and 11B. 10A shows a plan view, FIG. 10B shows an internal plan view, FIG. 11A shows an exploded cross-sectional view, and FIG. 11B shows a cross-sectional view taken along line YY ′ of FIGS. 10A and 10B.
In the rotary electromagnetic generator shown in FIGS. 10A to 11B, the rotary magnet holder 4 is divided into two parts, and is composed of an upper half member 4A and a lower half member 4B. Then, permanent magnets (main magnets) 11, 12, 13, and 14 that generate vertical magnetic flux are accommodated in the upper half member 4A, and permanent magnets (auxiliary magnets) 15, 16, 17, and 18 are accommodated in the lower half member 4B. Stored.
Further, the power generating coils 21, 22, 23, 24 are arranged in the upward direction (the direction of the rotating shaft 2) with respect to the rotating magnet holder 4. That is, the axial direction W of the winding shaft of the power generation coils 21, 22, 23, 24 is arranged so as to be parallel to the rotating shaft 2.
In the case of this second modification, as shown in FIGS. 11A and 11B, after the permanent magnets 11 to 14 and 15 to 18 are incorporated in the members 4A and 4B of the rotating magnet holder 4, respectively, 4B is fastened with screws 6. The other members 4A and 4B may be held and fixed by other means.
In addition, it is also possible to adopt a configuration in which the power generating coil is arranged in the downward direction or the vertical direction (both directions in the rotation axis 2) with respect to the rotating magnet holder. When the power generation coil is provided below the rotary magnet holder, the member storing the main magnet and the member storing the auxiliary magnet are arranged upside down with respect to FIGS. 11A and 11B.
With this configuration, as in the embodiment shown in FIG. 1 and the first modification, the power generating coils 21, 22, 23, and 24 are arranged further outward than the outer periphery of the rotating magnet holder 4. In comparison, it is possible to obtain a small rotary electromagnetic generator that can further reduce the floor area and is extremely easy to assemble.

Further, as described above, the vertical magnetic flux / magnetic field generated from the permanent magnets facing the same pole is perpendicular to the rotating shaft 2 and parallel to the rotating shaft 2 as well as the direction along the main surface of the rotating magnet holder 4, that is, the horizontal direction. In consideration of the fact that it is also generated in the vertical direction, that is, in the vertical direction, the power generation efficiency is increased by configuring the power generation coil so that the vertical magnetic flux and magnetic field in the horizontal direction and the vertical direction pass through the core of the power generation coil. Can be expected. A modified example of such a configuration is shown below.
As a third modification, FIG. 12A shows a plan view of a rotary electromagnetic generator, and FIG. 12B shows a cross-sectional view at YY ′ in FIG. 12A.
In the rotary electromagnetic generator shown in FIGS. 12A and 12B, the power generation coils 21, 22, 23, and 24 are arranged in three directions, that is, above the outer permanent magnets 11, 12, 13, and 14 installed in the rotary magnet holder 4. It is formed in a “U” shape so as to surround from the direction, the horizontal direction, and the downward direction.
By adopting the form of the power generating coil of this third modification, a larger amount of vertical magnetic flux can be passed through the cores of the power generating coils 21, 22, 23, 24, and the first and second Compared with the configuration of the modified example, an increase in power generation efficiency can be expected.
The shape of the power generation coil is not limited to the “U” shape, and may be an L shape extending in one of the upper and lower sides depending on the installation conditions and dimensional conditions of the rotary electromagnetic generator. It is good also as C shape which rounded.

The generator coils 21, 22, 23, and 24 are arranged further outward than the outer periphery of the rotating magnet holder 4 as in the configuration of the embodiment shown in FIG. 1 and the first and third modifications thereof. In this case, it is desirable that the members such as the rotary shaft 2 and the rotary joint 3 are made of a nonmagnetic material (for example, a nonmagnetic metal / alloy material such as stainless steel or titanium, or an organic material).
This is because if the rotating shaft 2 and the rotating joint 3 are made of a magnetic material, the strong magnetic field is biased in the direction of the rotating shaft 2, and the amount of magnetic flux passing through the cores of the power generating coils 21, 22, 23, 24 is reduced. It is because it ends.

As a fourth modification, the configuration of the rotating magnet holder of the rotary electromagnetic generator is shown in the plan view of FIG. 13A and the cross-sectional view of FIG. 13B.
As shown in FIGS. 13A and 13B, the permanent magnet storage portion 5 of the rotary magnet holder 4 is formed so that the main magnet and the auxiliary magnet are arranged in direct contact with each other, as shown in FIGS. This is different from the first embodiment.
And the state which accommodated the permanent magnets 11-14, 15-18 in the rotating magnet holder 4 shown to FIG. 13A and 13B is shown in the top view of FIG. 14A, and sectional drawing of FIG. 14B. As shown in FIGS. 14A and 14B, the outer permanent magnets (main magnets) 11, 12, 13, and 14 and the inner permanent magnets (auxiliary magnets) 15, 16, 17, and 18 are in direct contact with each other. .
By configuring in this manner, the first embodiment and the fourth modification are shown in comparison with FIGS. 15A and 15B, and the first embodiment shown by the arrow in FIG. 15A is shown. Magnetic flux (unnecessary magnetic flux that does not penetrate through the core of the power generating coil) that can occur in the configuration can be suppressed. Thereby, the magnetic flux which flows to an outer peripheral side can be raised more intensively, and it is possible to implement | achieve improvement of power generation efficiency.

In the first embodiment described above, the majority of the magnetic path of the magnetic flux generated from the plurality of permanent magnets passes through the non-magnetic part (the rotating magnet holder 4 made of non-magnetic resin in the atmosphere). It is considered that the magnetic flux that does not pass through the core of the power generation coil, that is, the magnetic flux that does not contribute to power generation remains.
Therefore, it is conceivable to arrange a magnetic member (yoke or the like) in the core portion of the power generation coil as a configuration for passing a larger amount of magnetic flux through the core portion of the power generation coil and enhancing the power generation effect of the rotary electromagnetic generator.
An embodiment of the rotary electromagnetic generator in this case will be described below.

As a second embodiment of the rotary electromagnetic generator of the present invention, schematic configuration diagrams of the rotary electromagnetic generator are shown in FIGS. 16A and 16B. 16A shows a plan view, and FIG. 16B shows a cross-sectional view taken along line YY ′ of FIG. 16A.
In the second embodiment, the cores of the four power generating coils 21, 22, 23, 24 of the first embodiment shown in FIG. 1 and the first modification shown in FIG. A magnetic member (such as a yoke) 20 for allowing magnetic flux to pass therethrough is disposed.
In the rotary electromagnetic generator shown in FIGS. 16A and 16B, the power generation coils 21, 22, 23, and 24 are curved along the outer peripheral shape of the rotary magnet holder 4 and surround the rotary magnet holder 4. The portion of the magnetic member (yoke or the like) 20 is also circular along the outer peripheral shape of the rotating magnet holder 4.
The magnetic member 20 includes a portion protruding through the cores of the power generation coils 21, 22, 23, and 24, and a portion surrounding the rotating magnet holder 4 so as to connect the two power generation coils. have.
Other configurations are the same as those of the first embodiment shown in FIG. 1 and the first modification shown in FIG.

  More preferably, the rotary shaft 2 and the rotary joint 3 are made non-magnetic to increase the magnetic flux passing through the magnetic member 20. With this configuration, the amount of magnetic flux passing through the cores of the power generation coils 21, 22, 23, and 24 becomes extremely large, so that the power generation characteristics are further improved.

According to the configuration of the rotary electromagnetic generator of the present embodiment (second embodiment) described above, the same magnetic poles as in the rotary electromagnetic generator 1 of the first embodiment shown above. Can generate a vertical magnetic field from the four outer permanent magnets 11, 12, 13, 14 facing each other and pass through the cores of the power generation coils 21, 22, 23, 24. , 23, and 24, sufficient power generation is obtained.
Further, the inner four permanent magnets 15, 16, 17, and 18 that face the same magnetic pole as the adjacent outer permanent magnets increase the magnetic force in the radial direction around the rotating shaft 2, thereby increasing the vertical magnetic field. be able to.
Therefore, it is possible to obtain a sufficient amount of power generation with a small number of permanent magnets 11, 12, 13, 14, 15, 16, 17, 18 compared to the configuration proposed in Patent Document 1. It is possible to reduce the weight by reducing the number of permanent magnets. In addition, the efficiency can be improved at the same rotational speed.

In the present embodiment, in particular, a magnetic circuit is formed through the magnetic member 20 penetrating the core portions of the power generating coils 21, 22, 23, and 24, and the magnetic member 20 generates a magnetic flux generated by the permanent magnets 11, 12, 13, and 14. Has the effect of sucking up.
Thereby, compared with the structure of 1st Embodiment, it becomes possible to allow more magnetic flux to pass through the core part of the power generation coils 21, 22, 23, and 24, and to improve electric power generation efficiency.

  The magnetic member 20 not only penetrates through the cores of the power generating coils 21, 22, 23, 24, but also protrudes from the power generating coils 21, 22, 23, 24 so that the magnetic member 20 absorbs the magnetic flux. The effect can be enhanced.

  In addition, since a magnetic circuit is formed in which most of the magnetic flux passes through the magnetic member 20 and returns to the outer permanent magnets 11, 12, 13, and 14, the magnetic flux leaking outside the rotary electromagnetic generator is greatly reduced. can do. As a result, it is possible to reduce the influence of disturbance magnetic noise on an external electronic device or the like.

In addition, when the magnetic member 20 is disposed in the core portion of the power generating coils 21, 22, 23, 24, magnetic resistance called cogging torque is generated.
From this, the configuration of the second embodiment is more effective in generating power by coupling the rotary shaft 2 of the rotary electromagnetic generator to a power source / drive source that is rotating than in the case of manual power generation. Suitable for use.

By the way, it is not always necessary to provide the portion surrounding the rotating magnet holder 4 by connecting the power generating coils of the magnetic member 20 provided in the configuration of the second embodiment.
If the magnetic member 20 is disposed at least in the core portion of the power generating coil, the same effect as that of the second embodiment described above can be obtained.

Although not shown, as a modification of the second embodiment, the power generating coils 21, 22, 23, 24 and the magnetic member (yoke etc.) 20 are moved upward and downward relative to the rotating magnet holder 4. It is also possible to adopt a configuration in which they are arranged in the vertical direction.
Compared with the configuration in which the power generation coils 21, 22, 23, and 24 are arranged on the outer side of the outer periphery of the rotating magnet holder 4 as in the embodiment shown in FIGS. Since the floor area can be further reduced, a small rotary electromagnetic generator can be obtained.

Furthermore, although not illustrated, as a modification to the second embodiment, the outer permanent magnet 11 provided on the rotating magnet holder 4 includes the power generation coils 21, 22, 23, 24 and the magnetic member (yoke etc.) 20. 12, 12, 13, and 14 may be formed in a “U” shape so as to surround from three directions, that is, the upward direction, the lateral direction, and the downward direction.
The shape of the power generation coil is not limited to the “U” shape, and may be an L shape extending in one of the upper and lower sides depending on the installation conditions and dimensional conditions of the rotary electromagnetic generator. It is good also as C shape which rounded.

In each form of 1st Embodiment and 2nd Embodiment mentioned above and its modification, the several permanent magnet (main magnet) which made the same magnetic poles oppose is arrange | positioned on the outer side of the rotating magnet holder 4, Inside these permanent magnets, permanent magnets (auxiliary magnets) that are polarized (magnetized) in the radial direction around the rotation shaft 2 are arranged.
On the other hand, a plurality of permanent magnets (main magnets) with the same magnetic poles facing each other are arranged inside the rotating magnet holder 4 and polarized in the radiation direction around the rotating shaft 2 outside these permanent magnets ( It is also possible to arrange a permanent magnet (auxiliary magnet) magnetized. An embodiment of the rotary electromagnetic generator in that case will be described below.

As a third embodiment of the rotary electromagnetic generator of the present invention, schematic configuration diagrams of the rotary electromagnetic generator are shown in FIGS. 17A and 17B. 17A shows a plan view, and FIG. 17B shows a cross-sectional view taken along line YY ′ of FIG. 17A.
In the rotary electromagnetic generator according to the present embodiment, four permanent magnets 11, 12, 13, 14 mounted on the rotary magnet holder 4 are arranged on the outer side (the side opposite to the rotary shaft 2). Magnets 15, 16, 17, and 18 are arranged.

  Further, in the rotary electromagnetic generator according to the present embodiment, a recess 4C is formed in the central portion between the outer peripheral portion of the rotating magnet holder 4 and the rotary shaft 2, and four power generators are formed in the space of the recess 4C. Coils 25, 26, 27 and 28 are arranged. The axial direction of the winding shafts of these four power generating coils is a direction perpendicular to the rotating direction of the rotating magnet holder 4.

The four inner permanent magnets 11, 12, 13, and 14 are each in the shape of a bar having an arc shape, polarized (magnetized) in the longitudinal direction, and in two adjacent permanent magnets, the same magnetic pole (N Poles, S poles) are opposed to each other.
The four outer permanent magnets 15, 16, 17, and 18 are each in the shape of a bar having an arc shape, polarized (magnetized) in the radial direction around the rotation axis 2, and adjacent inner permanent magnets 11. , 12, 13, and 14 are arranged so that the same magnetic poles (N pole and S pole) face each other. Specifically, the S pole of the outer permanent magnet 15 is disposed opposite to the S pole of the inner permanent magnet 11 and the permanent magnet 12, and is opposed to the N pole of the inner permanent magnet 12 and the permanent magnet 13. The north pole of the outer permanent magnet 16 is disposed, the south pole of the outer permanent magnet 17 is disposed opposite to the south pole of the inner permanent magnet 13 and the permanent magnet 14, and the inner permanent magnet 14 and the permanent magnet. The N pole of the outer permanent magnet 18 is arranged opposite to the 11 N pole.
These four outer permanent magnets 15, 16, 17, 18 are arranged along a circumference centered on the rotation shaft 2. As a result, the outer four permanent magnets 15, 16, 17, 18 and the inner four permanent magnets 11, 12, 13, 14 are concentric two circumferences (a large circumference and a small circumference). ) Is arranged along.

The four permanent magnets 11, 12, 13, 14 are members for exciting magnetic flux that passes through the cores of the power generation coils 25, 26, 27, 28.
Further, the four permanent magnets 15, 16, 17, 18 on the outside are members for strengthening the magnetic force in the radiation direction (radial direction of the rotating magnet holder 4) around the rotating shaft 2.

This configuration can also be easily formed by applying the stator structure of the motor.
Furthermore, the rotating shaft 2 and / or the rotating joint 3 are made of a magnetic material such as a magnetic metal, so that more magnetic flux can be collected at the central portion (inner peripheral side) of the rotating magnet holder 4.
By comprising in this way, the vertical magnetic flux which passes the core part of an electric power generation coil can be increased with a simple structure.

In the present embodiment, a structure in which the rotary magnet holder 4, the rotary joint 3, and the rotary shaft 2 are integrally joined may be employed.
Other configurations are the same as those of the first embodiment shown in FIG. 1 and the first modification shown in FIG.

  According to the above-described embodiment, as in the rotary electromagnetic generator 1 of the first embodiment described above, the four inner permanent magnets (main magnets) 11 facing the same magnetic poles, A vertical magnetic field can be generated from 12, 13, and 14 to pass through the cores of the power generation coils 25, 26, 27, and 28, and a sufficient power generation amount can be obtained in these power generation coils 25, 26, 27, and 28. It is done.

Further, four permanent magnets (auxiliary magnets) 15, 16, 17, and 18 arranged outside the four permanent magnets (main magnets) 11, 12, 13, and 14 are irradiated with radiation about the rotation axis 2. It is configured to be polarized (magnetized) in the direction, and arranged so that the same magnetic poles as the adjacent inner permanent magnets 11, 12, 13, and 14 are opposed to each other.
Thereby, the magnetic force in the radiation direction is strengthened by the outer permanent magnets (auxiliary magnets) 15, 16, 17, and 18, and the vertical magnetic field generated from the inner permanent magnets (main magnets) 11, 12, 13, and 14 is changed to the inner side. It becomes possible to strengthen. Then, it is possible to improve the power generation amount of the power generation coils 25, 26, 27, 28 by passing the strengthened vertical magnetic field to the cores of the power generation coils 25, 26, 27, 28.

Therefore, it is possible to obtain a sufficient amount of power generation with a small number of permanent magnets 11, 12, 13, 14, 15, 16, 17, 18 compared to the configuration proposed in Patent Document 1. It is possible to reduce the weight by reducing the number of permanent magnets. In addition, the efficiency can be improved at the same rotational speed.
That is, the rotary electromagnetic generator of the present embodiment has an effect that the structure is simple and an excellent power generation effect can be obtained.

  The configuration of the third embodiment is modified in the same manner as the first to fourth modifications of the first embodiment, or the magnetic member shown in the second embodiment. It is also possible to provide

  Further, by combining the configuration of the first embodiment and the configuration of the third embodiment, a permanent magnet (main magnet) that generates a vertical magnetic field is radially emitted both inside and outside. It is also possible to provide a polarized (magnetized) permanent magnet (auxiliary magnet).

By the way, it is possible to configure a power generation system using the rotary electromagnetic generator of the present invention.
Here, as an example of a power generation system using the rotary electromagnetic generator of the present invention, a circuit diagram of a configuration example of a power generation system configured using the rotary electromagnetic generator 1 shown in FIG. 1 is shown in FIG. .
At this time, the four power generating coils 21, 22, 23, and 24 in FIG. 1 are wound in the order of normal winding, reverse winding, normal winding, and reverse winding, and each has a two-terminal configuration in which they are connected in series.
In the circuit diagram of the power generation system shown in FIG. 18, two terminals of the rotary electromagnetic generator 1 are connected to a rectifier circuit 41. The output of this rectifier circuit 41 is connected to a charging capacitor 42 as a storage means.
The electric charge generated from the rotationally driven rotary electromagnetic generator 1 is rectified by the rectifier circuit 41 and stored in the charging capacitor 42. The electric power stored in the charging capacitor 42 is supplied to the load 44 via the switch 43.

  In each of the above-described embodiments, the rotary magnet holder 4 has a disk shape, but the rotary magnet holder may have a polygonal shape (for example, a hexagon or an octagon).

In each of the above embodiments, four permanent magnets are provided on the outer side and the inner side. However, in the present invention, the number of outer and inner permanent magnets is not limited to four.
However, it is desirable that the number of outer permanent magnets and the number of inner permanent magnets be the same.
In the present invention, since the number of permanent magnets that make the same magnetic poles of adjacent permanent magnets face each other needs to be an even number, two or more even numbers may be provided.

  Further, as described above, the number of power generation coils is not limited to four, and may be any number of one or more.

It is desirable to select an appropriate number of permanent magnets and generator coils in consideration of conditions such as the size of the generator.
For example, when a large generator is configured, the amount of power generation can be increased by providing more permanent magnets and power generation coils.
For example, when a small generator is configured, it is better to set the number of permanent magnets or power generation coils to be small so that the size of the permanent magnets or power generation coils does not become too small. If the permanent magnet and the power generation coil are too small, the coercive force of the magnet and the power generation amount of the power generation coil may not be sufficiently obtained.

In each of the above-described embodiments, the four permanent magnets 15, 16, 17, 18 serving as auxiliary magnets have been described as being configured to be polarized (magnetized) in the radiation direction around the rotation axis 2. The direction of magnetization (magnetization) of the magnet is not limited to the radiation direction around the rotation axis.
As long as the effect of strengthening the magnetic force in the radiation direction is generated, the auxiliary magnet may be polarized (magnetized) in a direction slightly deviated from the radiation direction.

The plurality of power generating coils can be connected in any of (1) series, (2) parallel, and (3) a part of the coils in which the phases of the output voltages are matched in parallel.
Depending on the application of the rotating electromagnetic generator, the connection method of the generator coil is selected.
When connected in series, the voltage obtained by the n power generating coils becomes n times.
When connected in parallel, the total resistance of n power generating coils is 1 / n, so that a large current (power) can be obtained.

  When the number of power generation coils is an even number, it is preferable to reverse the winding of the coils alternately in the normal winding, reverse winding, normal winding, and reverse winding. For example, in the rotary electromagnetic generator 1 according to the first embodiment shown in FIG. 1, among the four power generation coils 11, 12, 13, and 14, the power generation coil 11 and the power generation coil 13 are positively wound. The power generation coil 12 and the power generation coil 14 are reversely wound. With this configuration, the phases of the output voltages of all the coils can be made equal.

  And, for example, when there are eight power generation coils, all eight coils are connected in series, each of four forward windings and four reverse windings are connected in series, and one set in which two in the same direction are connected in series. 4 sets of connections in parallel, 8 connections in parallel, etc. are conceivable.

  The present invention is not limited to the above-described embodiment, and various other configurations can be taken without departing from the gist of the present invention.

1 is a schematic configuration diagram (perspective view) of a rotary electromagnetic generator according to a first embodiment of the present invention. It is a disassembled perspective view of the rotary electromagnetic generator of FIG. FIGS. 2A to 2C are schematic configuration diagrams of the rotating magnet holder of FIG. It is sectional drawing which shows the other form of a rotating magnet holder. It is a top view of the rotary electromagnetic generator of FIG. B is a cross-sectional view taken along line YY ′ of FIG. 5A. It is a figure explaining the magnetic field which A and B permanent magnets excite. It is sectional drawing explaining the magnetic field which the permanent magnet of the rotary electromagnetic generator of FIG. 1 excites. A It is a top view of the form which made the outer permanent magnet into the shape of a straight bar. B is a plan view of a form in which the outer permanent magnet is shaped like a dogleg. A, B It is a schematic block diagram of the rotary electromagnetic generator of the 1st modification. A, B It is a schematic block diagram of the rotary electromagnetic generator of the 2nd modification. A, B It is a schematic block diagram of the rotary electromagnetic generator of the 2nd modification. A, B It is a schematic block diagram of the rotary electromagnetic generator of the 3rd modification. A, B It is a figure which shows the structure of the rotating magnet holder of the rotary electromagnetic generator of the 4th modification. A, B It is a figure which shows the state which accommodated the permanent magnet in the rotating magnet holder of FIG. 13A and 13B. A, B It is a figure which compares and shows 1st Embodiment and a 4th modification. A, B It is a schematic block diagram of the rotary electromagnetic generator of the 2nd Embodiment of this invention. A and B It is a schematic block diagram of the rotary electromagnetic generator of the 3rd Embodiment of this invention. It is a circuit diagram of the example of a structure of the electric power generation system comprised using the rotary electromagnetic generator shown in FIG. It is typical sectional drawing of the electromagnetic generator proposed conventionally.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Rotary type electromagnetic generator, 2 rotary shaft, 3 rotary joint, 4 rotary magnet holder, 11, 12, 13, 14, 15, 16, 17, 18 Permanent magnet, 20 Magnetic member (yoke etc.) 21,22 23, 24, 25, 26, 27, 28 Generator coil, 41 Rectifier circuit, 42 Charging capacitor, 43 Switch, 44 Load

Claims (3)

at least,
A rotation axis;
A rotating magnet holder coupled to the rotating shaft and configured to be rotatable;
With the magnetic poles facing the same pole, a plurality of permanent magnets arranged in the rotating magnet holder;
And at least one power generating coil disposed around the rotating magnet holder and the plurality of permanent magnets,
At the place where the plurality of permanent magnets of the rotating magnet holder are opposite to each other with the same polarity, other permanent magnets are arranged so as to face the same polarity as the plurality of permanent magnets,
The rotary electromagnetic generator is characterized in that the power generation coil is disposed on the opposite side of the other permanent magnets with the plurality of permanent magnets interposed therebetween. The rotary electromagnetic generator according to claim 1,
The axial direction of the winding axis of the power generation coil is arranged to be perpendicular to the rotation direction of the rotary magnet holder and the plurality of permanent magnets, or
The rotary electromagnetic generator is characterized in that an axial direction of a winding axis of the power generation coil is arranged to be parallel to the rotation axis. The rotary electromagnetic generator according to claim 2,
The rotary electromagnetic generator, wherein the plurality of permanent magnets and the other permanent magnets are arranged in contact with each other.

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