JP2017135811A - Power generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power generator having a higher power generation efficiency as compared with the prior art.SOLUTION: A power generator includes a magnet portion, a coil portion which is provided to face the magnet portion through a space of a predetermined interval from the magnet portion in the longitudinal direction of a rotation shaft, a rotating part which is rotatably connected to the rotating shaft so as to be perpendicular to the rotating shaft, and a magnetic flux changing part which is provided to the rotating part and changes a magnetic flux interlinking with the coil part. The magnet part and the coil part are fixed so that when the rotating part rotates, the magnetic flux changing part passes through the space. The magnet part includes a plurality of first and second magnets arranged on the outer peripheral portion. The magnetization directions of each pair of adjacent first magnets out of the plurality of first magnets differ from each other in the longitudinal direction of the rotating shaft, and the magnetization directions of each pair of adjacent second magnets out of the plurality of second magnets are different from each other in the circumferential direction of the rotating shaft. The plurality of first and second magnets are arranged to connect magnetic paths by one of the plurality of second magnets between each pair of adjacent first magnets.SELECTED DRAWING: Figure 7

Description

  The present disclosure relates to a power generator.

  In recent years, motors used in trains and automobiles usually receive electric energy and obtain driving torque. On the other hand, there is a power generation apparatus that receives electric energy by performing regenerative power generation by inputting rotational kinetic energy.

  As this type of power generation device, for example, there is an axial gap type power generation device. This power generation device includes a magnet portion and an induction coil portion that face each other in the longitudinal direction of the rotation shaft. The magnet portion rotates in conjunction with the rotation shaft, and the induction coil portion is fixed independently of the rotation of the rotation shaft. In this power generation device, the magnetic flux generated from the magnet unit is linked to the induction coil unit, and the rotation of the rotating shaft causes the magnet unit to rotate. Thereby, the magnetic flux density of the magnetic flux interlinking with the induction coil portion is changed, and an electromotive force is induced in the induction coil portion according to Faraday's law of electromagnetic induction.

  For example, Patent Document 1 discloses a motor that includes a rotor magnet and a stator coil that face each other in the longitudinal direction of the rotating shaft, as in the above-described power generation device.

JP-A-2-269450

  However, since the rotor magnet has both volume and weight, kinetic energy, which is input energy of the power generation device, is consumed by operating the rotor having both volume and weight, and power generation efficiency decreases.

  The objective of this indication is providing the electric power generating apparatus which has high electric power generation efficiency compared with a prior art.

The power generation device of the present disclosure is
A magnet section;
A first induction coil unit that includes a first winding, has a first space having a predetermined first interval with the magnet unit, and is provided facing the magnet unit in the longitudinal direction of the rotation shaft. When,
A rotating part coupled to be orthogonal to the rotation axis and rotatable;
A first magnetic flux changing unit that is provided in the rotating unit and changes a magnetic flux generated from the magnet unit and interlinked with the first induction coil unit;
The magnet part and the first induction coil part are fixed so that the first magnetic flux changing part passes through the first space when the rotating part rotates,
The magnet portion is magnetized in a direction substantially parallel to the longitudinal direction of the rotating shaft, and is magnetized in a rotating direction of the rotating shaft, and a plurality of first magnets sequentially arranged on the outer peripheral portion of the magnet portion, A plurality of second magnets sequentially arranged on the outer periphery of the magnet portion,
The magnetization directions of each pair of first magnets adjacent to each other among the plurality of first magnets are different from each other,
The magnetization directions of each pair of second magnets adjacent to each other among the plurality of second magnets are different from each other,
The plurality of first magnets and the plurality of second magnets connect a magnetic path by one of the plurality of second magnets between each pair of adjacent first magnets. Placed in.

  According to the present disclosure, it is possible to increase the power generation efficiency as compared with the prior art.

It is a model perspective view which shows the structure of the electric power generating apparatus 1-1 which concerns on Embodiment 1. FIG. It is a schematic cross section which shows the simulation model of the electric power generating apparatus 1-1 of FIG. FIG. 3 is a magnetic flux distribution diagram showing a simulation result of the simulation model of FIG. 2. 4 is a graph showing a magnetic flux density distribution at a position y1 of a coil 40 at the moment of obtaining the magnetic flux distribution of FIG. 3. It is a model perspective view which shows the structure of the electric power generating apparatus 1-2 which concerns on Embodiment 2. FIG. It is a model perspective view which shows the structure of the electric power generating apparatus 1-3 which concerns on Embodiment 3. FIG. It is a disassembled perspective view which shows the structure of the electric power generating apparatus 1-4 which concerns on Embodiment 4. FIG. It is a perspective view which shows an external appearance when the yoke 70 and the yoke 80 of the electric power generating apparatus 1-4 of FIG. 7 are combined. FIG. 9 is a plan view when the power generation device 1-4 of FIGS. 7 and 8 is viewed from the yoke 70 side. It is a longitudinal cross-sectional view of the electric power generating apparatus 1-4 which follows the XB-XB 'line | wire of FIG. 9A. It is a cross-sectional view of the power generation device 1-4 along the XC-XC 'line of FIG. 9A. It is a perspective view of the magnet part 32 of FIG. It is a top view of the 1st surface 32a of the magnet part 32 of FIG. It is a top view of the 2nd surface 32b of the magnet part 32 of FIG. FIG. 8 is a partially developed view showing a part of the outer peripheral surface of the magnet part 32 of FIG. It is a cross-sectional view of the power generator 1-4 along the line XI-XI 'of FIG. 9A. It is a model perspective view which shows the structure of the electric power generating apparatus 1-1-1 which concerns on the modification 1. As shown in FIG. It is a model perspective view which shows the structure of the electric power generating apparatus 1-1-2 which concerns on the modification 2. FIG. It is a disassembled perspective view which shows the structure of the electric power generating apparatus 1-4-1 which concerns on the modification 3. FIG. It is a cross-sectional view of the power generator 1-4-2 according to Modification 4. FIG. 10 is a partial development view showing a part of the outer peripheral surface of a magnet part 32A according to Modification 5 in an expanded manner. It is a partial expanded view which expands and shows a part of outer peripheral surface of the magnet part 32B which concerns on the modification 6. FIG.

  First, the focus of the present inventor will be described below.

  In the rotating machine generator, higher output power is obtained as the rotor is rotated at a higher speed. However, due to the high-speed rotation, a failure due to wear of the rotary bearing or the brush occurs, and vibration noise or the like occurs. On the other hand, there is a method of increasing the operating magnetic flux density in order to increase the output. In a rotating machine using a permanent magnet, the operating magnetic flux density can be increased by using a magnet having a high magnetic force. However, as a magnet having a high magnetic force, a magnet having a high cost is generally required, for example, a magnet using a rare earth magnetic material.

  In a rotating machine using field windings, the magnetomotive force is increased by increasing the number of turns of the armature coil. Alternatively, in a rotating machine using a field winding, the magnetomotive force is increased by increasing the current flowing through the coil, such as by using a thick magnet coil. As a result, the operating magnetic flux density is increased. However, these methods make the armature itself large and heavy.

  Based on the above problem recognition, the inventor has created a configuration shown in the following embodiment. Hereinafter, embodiments according to the present disclosure will be described with reference to the drawings.

Embodiment 1. FIG.
FIG. 1 is a schematic perspective view illustrating the configuration of the power generation device 1-1 according to the first embodiment. In FIG. 1, the power generation device 1-1 includes a rotating plate 10, an opening 20, a magnet 30, a coil 40, a rotating shaft 50, and a support portion 60. FIG. 1 shows an xy orthogonal coordinate system, where the x direction is a direction orthogonal to the longitudinal direction of the rotation shaft 50 and is the moving direction of the rotating plate 10 in the space between the magnet 30 and the coil 40. The direction is a direction parallel to the longitudinal direction of the rotation shaft 50.

  In the power generator 1-1 of FIG. 1, the magnet 30 and the coil 40 face each other with a space of a predetermined interval, are juxtaposed and fixed in the longitudinal direction of the rotating shaft 50, and the rotating plate 10 is orthogonal to the rotating shaft 50. And are rotatably connected. An opening 20 is formed in the rotating plate 10, and when the rotating plate 10 rotates, a part of the rotating plate 10 is sandwiched between the magnet 30 and the coil 40, and the opening 20 is between the magnet 30 and the coil 40. Pass through the space. As a result, the magnetic flux density of the magnetic flux interlinking with the coil 40 changes, and an electromotive force is induced in the coil 40.

  Hereinafter, the configuration of the power generation device 1-1 will be described in detail. In FIG. 1, a rotating plate 10 is a substantially rectangular conductor plate, and is connected so as to be able to rotate perpendicular to a rotating shaft 50. Here, a shaft hole 10h is formed at one end 10a in the longitudinal direction of the rotating plate 10, and the rotating shaft 50 is inserted and fixed in the shaft hole 10h. Thereby, the rotating plate 10 is connected to the rotating shaft 50. A substantially rectangular opening 20 having a longitudinal direction parallel to the longitudinal direction of the rotating plate 10 is formed at the other end portion 10 b in the longitudinal direction of the rotating plate 10. The opening 20 functions as a magnetic flux changing section that changes the magnetic flux generated from the magnet 30 and interlinked with the coil 40. Note that one end portion 10a of the rotating plate 10 indicates a predetermined region near one end in the longitudinal direction, and the other end portion 10b of the rotating plate 10 indicates a predetermined region near the other end in the longitudinal direction.

  The magnet 30 and the coil 40 are provided in parallel with the rotation shaft 50 and opposed to the longitudinal direction of the rotation shaft 50. Here, the magnet 30 and the coil 40 have the above space by the support portion 60, and are supported and fixed so that the opening 20 passes through the space when the rotating plate 10 rotates. The magnet 30 is, for example, a cylindrical magnet, is magnetized in the longitudinal direction of the rotating shaft 50, and generates a magnetic flux φ in the longitudinal direction. The coil 40 is formed by winding a winding and is provided so as to interlink with the magnetic flux φ.

  Operation | movement of the electric power generating apparatus 1-1 comprised as mentioned above is demonstrated. The rotating shaft 50 rotates in the counterclockwise rotation direction 101 when the power generation device 1-1 is viewed from the magnet 30 side in conjunction with the rotational movement of the engine, for example. At this time, the rotating plate 10 is in the same direction as the rotation direction 101. Rotating in the rotation direction 102, the opening 20 crosses the space between the magnet 30 and the coil 40 through which the magnetic flux φ interlinking with the coil 40 passes. As a result, the magnetic flux density of the magnetic flux φ interlinking with the coil 40 changes, and an electromotive force is induced in the coil 40 according to the change of the magnetic flux density according to Faraday's law of electromagnetic induction.

  As described above, according to the power generation device 1-1 according to the first embodiment, rotation that can be configured relatively easily and lightly without rotating a large and heavy member such as the magnet 30 or the coil 40. Electricity can be generated by rotating the plate 10. Thereby, compared with a prior art, electric power generation efficiency can be improved also with respect to small kinetic energy. In addition, it is possible to reduce rotation troubles and mechanical losses that can occur remarkably during high-speed rotation.

  Further, according to the power generator 1-1 according to the first embodiment, since the rotating plate 10 is a conductor plate, an eddy current can be generated in the rotating plate 10, and the magnetic flux φ generated from the magnet 30 can be generated. Can be concentrated in the forward direction of the rotation direction 102. Thereby, the opening 20 of the rotating plate 10 can provide the coil 40 with a magnetic flux having a magnetic flux density larger than the magnetic flux density of the magnetic flux φ generated from the magnet 30. As the magnet, a member having a small magnetomotive force, for example, a small magnetization. Even when a magnet is used, high output power can be stably generated. Therefore, the magnet 30 can be reduced in size, and the entire power generator can be reduced in size. Further, in order to increase the magnetomotive force, it is not necessary to use a high-cost member such as a magnet using a rare earth magnetic material.

  Moreover, according to the electric power generating apparatus 1-1 which concerns on Embodiment 1, since the opening 20 is provided in the rotating plate 10, the rotating plate 10 can further be reduced in weight.

  Furthermore, according to the power generator 1-1 according to the first embodiment, the power generator can be configured without using a brush. Thereby, generation | occurrence | production of the failure etc. by abrasion of a brush can be suppressed.

  In the following, a simulation is performed on the concentration of magnetic flux in front of the moving conductor. FIG. 2 is a schematic cross-sectional view showing a simulation model of the power generator 1-1 of FIG. This simulation model is a model for two-dimensional magnetic field analysis, where the horizontal axis indicates the position in the x direction and the vertical axis indicates the position in the y direction. In FIG. 2, the magnetic pole 70 m corresponding to the yoke 70 (for example, see FIG. 7), the coil 40, and the magnet 30 are arranged side by side in the y direction, and the moving conductor 10 m corresponding to the rotating plate 10 is the magnet 30 and the coil. 40 is provided so as to repeatedly move at a predetermined interval in the moving direction 103 in the x direction. The magnet 30 is magnetized in the magnetization direction 104, and its magnetic flux density is 1.2T. The magnetic pole 70m is made of silicon steel, and the moving conductor 10m is made of aluminum. Further, when the length of the moving conductor 10m in the longitudinal direction is L1, and the predetermined interval of the repetitive movement of the moving conductor 10m is L2, L1: L2 is about 3:10.

  In this simulation model, a static magnetic field is formed in the y direction by the magnet 30 and the magnetic pole 70m, and changes in magnetic flux and magnetic flux density when the moving conductor 10m moving in the moving direction 103 passes through the static magnetic field are analyzed. In this simulation model, it is also possible to perform simulation by changing parameters such as the dimensions of the magnet 30 and the magnetic pole 70m.

  FIG. 3 is a magnetic flux distribution diagram showing a simulation result of the simulation model of FIG. FIG. 3 shows the distribution of the magnetic flux φ at the moment when the moving conductor 10m crosses the static magnetic field. Note that the horizontal and vertical axes in FIG. 3 correspond to the horizontal and vertical axes in FIG. Further, in FIG. 3, in order to clearly show the magnetic flux φ, hatching indicating a cross section is omitted.

  FIG. 4 is a graph showing the magnetic flux density distribution at the position y1 of the coil 40 at the moment of obtaining the magnetic flux distribution of FIG. In FIG. 4, the horizontal axis indicates the position in the x direction, and the vertical axis indicates the y component of the magnetic flux density. FIG. 4 shows the magnetic flux density distribution at the position y1 of the coil 40 when the speed Vmc of the moving conductor 10m is decelerated from the maximum value to zero. The speed Vmc of the moving conductor 10m is a value normalized at a rotation speed of 100 rpm. The dimensional parameters of the moving conductor 10m, the magnet 30, the coil 40, and the magnetic pole 70m are constant.

  As can be seen from the above simulation results, when the moving conductor 10m passes through the static magnetic field, an induced electromotive force corresponding to the speed is generated in the moving conductor 10m. At this time, an eddy current flows in the moving conductor 10m by the induced electromotive force, and this eddy current flows in a direction to block the magnetic flux passing through the moving conductor 10m. Therefore, as shown in FIG. 3, the magnetic flux φ is concentrated in front of the moving conductor 10m.

  As described above, when the moving conductor 10m moves in the static magnetic field, the magnetic flux density increases or decreases according to the speed of the moving conductor 10m and the position of the moving conductor 10m. Therefore, an induced electromotive voltage is generated in the coil 40 in accordance with the amount of change in the magnetic flux density.

  According to the above, for example, a magnetic flux having a magnetic flux density larger than the magnetic flux density of the magnetic flux φ generated from the magnet 30 can be generated at the position where the coil 40 is installed. Even when a small magnet is used, high output power can be stably generated.

Embodiment 2. FIG.
FIG. 5 is a schematic perspective view illustrating a configuration of the power generation device 1-2 according to the second embodiment. In FIG. 5, the power generation device 1-2 of the second embodiment is different from the power generation device 1-1 of the first embodiment shown in FIG. 1 in the following points.
(1) A rotating plate 11 is provided instead of the rotating plate 10 of FIG.
(2) In place of the opening 20 in FIG. 1, openings 21a, 21b, 21c, and 21d are provided.
Hereinafter, these differences will be described in detail.

  In FIG. 5, the rotating plate 11 is a substantially circular conductive plate, and is connected to the rotating shaft 50 so as to be rotatable. Here, a shaft hole 11h is formed in the center 11a of the rotating plate 11, and the rotating shaft 50 is inserted and fixed in the shaft hole 11h. Thereby, the rotating plate 11 is connected to the rotating shaft 50. In the outer peripheral portion 11 b of the rotating plate 11, substantially rectangular openings 21 a, 21 b, 21 c, 21 d having a longitudinal direction in the radial direction of the rotating plate 11 have an angular difference of 90 ° around the rotating shaft 50. It is a position and is formed at substantially equal intervals in the circumferential direction of the rotating plate 11. In addition, the outer peripheral part 11b of the rotating plate 11 shows the predetermined area | region near an outer periphery.

  Here, the magnet 30 and the coil 40 are provided by the support portion 60 so as to have a space with a predetermined interval, and are supported so that the openings 21a, 21b, 21c, and 21d sequentially pass through the space when the rotating plate 11 rotates. To be fixed.

  Operation | movement of the electric power generating apparatus 1-2 comprised as mentioned above is demonstrated. The rotating shaft 50 rotates in the rotation direction 101 in conjunction with, for example, the rotational movement of the engine. At this time, the rotating plate 11 rotates in the rotation direction 102, and the openings 21 a, 21 b, 21 c, 21 d are formed between the magnet 30 and the coil 40. The space through which the magnetic flux φ interlinking with the coil 40 passes is sequentially traversed. As a result, the magnetic flux density of the magnetic flux φ interlinking with the coil 40 changes, and an electromotive force is induced in the coil 40 according to the change of the magnetic flux density according to Faraday's law of electromagnetic induction.

  The power generation device 1-2 according to the second embodiment has the same effects as the power generation device 1-1 according to the first embodiment. Further, according to the power generation device 1-2 according to the second embodiment, the induction of the electromotive force can be generated in the coil 40 four times by the rotation of the rotating plate 11, and more output power can be obtained in one rotational motion. Can be obtained efficiently.

Embodiment 3. FIG.
FIG. 6 is a schematic perspective view illustrating the configuration of the power generation device 1-3 according to the third embodiment. In FIG. 6, the power generator 1-3 of Embodiment 3 differs in the following points compared to the power generator 1-2 of Embodiment 2 shown in FIG.
(1) A magnet 31 is provided instead of the magnet 30 of FIG.
(2) The coils 40a, 40b, 40c, and 40d are provided instead of the coil 40 of FIG.
Hereinafter, these differences will be described in detail.

  In FIG. 6, the magnet 31 is an annular magnet centered on the rotation shaft 50, and the coils 40 a, 40 b, 40 c, and 40 d are positions that have an angular difference of 90 ° around the rotation shaft 50 and rotate. It is provided at substantially equal intervals in the circumferential direction of the plate 11. As a result, the magnet 31 and the coils 40 a, 40 b, 40 c, and 40 d are provided to face the longitudinal direction of the rotary shaft 50 around the rotary shaft 50. Here, the magnet 31 and the coils 40a, 40b, 40c, and 40d are provided by the support portion 60 so as to have a predetermined space, and when the rotating plate 11 rotates, the openings 21a, 21b, 21c, and 21d pass through the space. It is supported and fixed so as to pass sequentially.

  The magnet 31 is magnetized in the longitudinal direction of the rotating shaft 50 and generates a magnetic flux in the longitudinal direction. Each of the coils 40 a, 40 b, 40 c, and 40 d is formed by winding a winding, and is provided so as to interlink with the magnetic flux from the magnet 31.

  The coils 40a, 40b, 40c, and 40d may be connected in series with each other or may be connected in parallel with each other. When connected in series, the output voltage can be increased, while when connected in parallel, the output current can be increased. Alternatively, the coils 40a, 40b, 40c, and 40d may be connected by combining series connection and parallel connection.

  Operation | movement of the electric power generating apparatus 1-3 comprised as mentioned above is demonstrated. The rotary shaft 50 rotates in the rotation direction 101 in conjunction with, for example, the rotational movement of the engine. At this time, the rotary plate 11 rotates in the rotation direction 102, and the openings 21a, 21b, 21c, 21d are magnets 31 and coils 40a, 40b. , 40c and 40d, the space passing through the magnetic fluxes interlinking with the coils 40a, 40b, 40c and 40d is sequentially traversed. As a result, the magnetic flux density of the magnetic flux interlinking with each of the coils 40a, 40b, 40c, and 40d is changed. According to the Faraday's law of electromagnetic induction, the coils 40a, 40b, 40c, An electromotive force is induced at 40d.

  As described above, the power generation device 1-3 according to the third embodiment has the same effects as the power generation device 1-1 according to the first embodiment and the power generation device 1-2 according to the second embodiment. In addition, according to the power generation device 1-3 according to the third embodiment, the rotation of the rotating plate 11 can cause the coils 40a, 40b, 40c, and 40d to induce the electromotive force four times, and the rotation of one rotation. In exercise, more four output powers can be obtained efficiently.

Embodiment 4 FIG.
FIG. 7 is an exploded perspective view illustrating a configuration of the power generation device 1-4 according to the fourth embodiment. In FIG. 7, the power generator 1-4 of Embodiment 4 differs in the following points compared with the power generator 1-3 of Embodiment 3 shown in FIG.
(1) A rotating plate 12 is provided instead of the rotating plate 11 of FIG.
(2) 15 openings 15 are provided instead of the openings 21a, 21b, 21c, and 21d in FIG.
(3) Instead of the magnet 31 of FIG.
(4) An induction coil unit 41 is provided instead of the coils 40a, 40b, 40c, and 40d shown in FIG.
(5) The yokes 70 and 80 are further provided.
Hereinafter, these differences will be described in detail.

  FIG. 8 is a perspective view showing an appearance when the yoke 70 and the yoke 80 of the power generation device 1-4 of FIG. 7 are combined. 7 and 8, the power generating device 1-4 sequentially sandwiches the induction coil unit 41, the rotating plate 12, and the magnet unit 32 between the yoke 70 and the yoke 80 in the longitudinal direction of the rotating shaft 50. Configured.

  9A is a plan view of the power generation device 1-4 of FIGS. 7 and 8 when viewed from the yoke 70 side, and FIG. 9B is a longitudinal sectional view of the power generation device 1-4 taken along line XB-XB ′ of FIG. 9A. FIG. 9C is a cross-sectional view of the power generation device 1-4 taken along line XC-XC ′ of FIG. 9A. 9B is a vertical cross-sectional view of the power generator 1-4 as seen in the direction of the arrow along the line XB-XB ′ shown in FIG. 9A, and the cross-sectional view shown in FIG. 9 is a cross-sectional view of FIG. 4 as viewed in the direction of the arrow along the line XC-XC ′ shown in FIG. 9A. Hereinafter, the configuration of the power generation device 1-4 will be described mainly with reference to FIGS. 7, 9B, and 9C.

  7, 9 </ b> B, and 9 </ b> C, the rotating plate 12 is a substantially circular conductive plate, and is connected to the rotating shaft 50 so as to be rotatable. Here, a shaft hole 12 h is formed in the center 12 a of the rotating plate 12, the rotating shaft 50 is inserted into the shaft hole 12 h and fixed by, for example, welding, and the rotating plate 12 is connected to the rotating shaft 50. In the outer peripheral portion 12 b of the rotating plate 12, for example, fifteen openings 15 having a substantially circular shape are positions having an angular difference of 24 ° around the rotating shaft 50, and are substantially equal in the rotating direction of the rotating plate 12. Formed at intervals. In addition, the outer peripheral part 12b of the rotating plate 12 shows the predetermined area | region in the outer peripheral edge vicinity.

  The magnet portion 32 is an annular magnet centered on the rotation shaft 50, and includes twelve magnets 33 and twelve magnets 34. The twelve magnets 33 are positions having an angular difference of 30 ° around the rotation axis 50, and have a predetermined interval d0 (described later in FIG. 10A) at substantially equal intervals in the circumferential direction of the rotation plate 12. Provided. Each magnet 34 is inserted and filled in the space between each pair of magnets 33 adjacent to each other among the twelve magnets 33. The magnet portion 32 has a first surface 32a and a second surface 32b orthogonal to the rotation axis 50, the first surface 32a faces the rotating plate 12, and the second surface 32b is yoked by an adhesive, for example. Adhere to 80 and fix.

  The induction coil unit 41 includes twelve coils 42 that are provided at substantially equal intervals in the circumferential direction of the rotating plate 12 at positions having an angular difference of 30 ° around the rotating shaft 50. Each coil 42 is configured by winding a winding on a plane orthogonal to the rotation shaft 50, and the magnetic poles of the yoke 70 are made of, for example, an adhesive so as to be opposed to each magnet 33 in the longitudinal direction of the rotation shaft 50 in a one-to-one manner. 73 (to be described later) and fixed. Here, as shown in FIGS. 9B and 9C, a space having a predetermined interval is formed between the magnet portion 32 and the induction coil portion 41, and 15 openings 15 sequentially pass through the space when the rotating plate 12 rotates. The magnet portion 32 and the induction coil portion 41 are supported and fixed by the yokes 70 and 80 so as to pass through. Thereby, the magnet part 32 and the induction coil part 41 are provided so that each coil 42 may interlink with the magnetic flux from each magnet 33 through each opening 15 when the rotating plate 12 rotates. Here, the twelve coils 42 may be connected to each other in series, or may be connected to each other in parallel. Alternatively, the twelve coils 42 may be connected in combination with a series connection and a parallel connection.

  The yoke 70 includes a bottom surface portion 71, a peripheral side surface portion 72, and twelve magnetic poles 73. The bottom surface portion 71 is a circular flat plate orthogonal to the rotation shaft 50, and a bearing hole 70 h is formed at the center thereof. By inserting the rotation shaft 50 into the bearing hole 70 h, the rotation of the rotation shaft 50 is independent. Fixed. The twelve magnetic poles 73 protrude from the inner surface of the bottom surface portion 71 toward the coil 42 and are provided at substantially equal intervals in the circumferential direction of the rotating plate 11 at positions having an angular difference of 30 ° around the rotating shaft 50. Each coil 42 is wound around each magnetic pole 73 as shown in FIGS. 9B and 9C. The peripheral side surface portion 72 has a cylindrical shape extending in parallel with the rotation shaft 50 from the outer periphery of the bottom surface portion 71 toward the yoke 80, and covers the outer periphery of the induction coil portion 41 and the rotating plate 12. The yoke 70 is made of a magnetic material. As will be described later, the magnetic pole 73 and the bottom surface portion 71 mainly function as a magnetic path, and further function as a support portion that supports and fixes the coil 42.

  The yoke 80 includes a bottom surface portion 81 and a peripheral side surface portion 82. The bottom surface portion 81 is a circular flat plate orthogonal to the rotation shaft 50. A bearing hole 80h is formed at the center thereof, and the rotation shaft 50 is inserted into the bearing hole 80h, so that the rotation of the rotation shaft 50 is independent. Fixed. The peripheral side surface portion 82 has a cylindrical shape extending from the outer periphery of the bottom surface portion 81 toward the yoke 70 in parallel with the rotation shaft 50, and covers the outer periphery of the magnet portion 32. The yoke 80 is made of a magnetic material, and as will be described later, the bottom surface portion 81 mainly functions as a magnetic path, and further functions as a support portion that supports and fixes the magnet portion 32.

  10A is a perspective view of the magnet portion 32 of FIG. 7, FIG. 10B is a plan view of the first surface 32a of the magnet portion 32 of FIG. 7, and FIG. 10C is the second surface of the magnet portion 32 of FIG. It is a top view of 32b. In FIG. 10A, each magnet 33 is magnetized in a direction substantially parallel to the longitudinal direction of the rotation shaft 50, and two magnetizations of the pair of magnets 33 adjacent to each other out of the 12 magnets 33 toward the N pole. Arranged around the rotation axis 50 with a distance d0 so that the directions are opposite to each other. On the other hand, each magnet 34 is magnetized in the rotating direction of the rotating shaft 50, and two magnetization directions from the south pole to the north pole of each pair of adjacent magnets 34 out of the 12 magnets 34 are opposite to each other. In this way, it is inserted and filled in the interval d0. Here, the one magnet 33 and the one magnet 34 adjacent to each other are arranged so that their magnetization directions are different from each other by an angle difference of 90 °. Here, as will be described later, the distance d0 is smaller than the length d1 of the rotating shaft 50 of the magnet 33 in the rotational direction 101.

  In the magnetic pole set 201 on the first surface 32a of FIG. 10B, the magnet portion 32 is (1) the south pole of the magnet 34 magnetized in the rotating direction of the rotating shaft 50, and (2) the longitudinal direction of the rotating shaft 50. The south pole of the magnet 33 magnetized in the parallel direction, (3) the south pole of the magnet 34 magnetized in the rotating direction of the rotating shaft 50, and (4) the magnet 34 magnetized in the rotating direction of the rotating shaft 50. N pole, (5) N pole of magnet 33 magnetized in a direction substantially parallel to the longitudinal direction of rotating shaft 50, and (6) N pole of magnet 34 magnetized in the rotating direction of rotating shaft 50. The rotating shaft 50 is configured to be sequentially arranged in the rotation direction 101. The magnet part 32 is configured such that the magnetic pole group 201 of (1) to (6) described above is repeatedly arranged six times in the rotation direction 101 of the rotary shaft 50 on the first surface 32a.

  In the magnetic pole set 202 of the second surface 32b of FIG. 10C, the magnet part 32 is (1) the south pole of the magnet 34 magnetized in the rotating direction of the rotating shaft 50, and (2) the longitudinal direction of the rotating shaft 50. The N pole of the magnet 33 magnetized in the parallel direction, (3) the S pole of the magnet 34 magnetized in the rotating direction of the rotating shaft 50, and (4) the magnet 34 magnetized in the rotating direction of the rotating shaft 50. N pole, (5) S pole of magnet 33 magnetized in a direction substantially parallel to the longitudinal direction of rotating shaft 50, and (6) N pole of magnet 34 magnetized in the rotating direction of rotating shaft 50. The rotating shaft 50 is configured to be sequentially arranged in the rotation direction 101. The magnet portion 32 is configured such that the magnetic pole sets 202 of (1) to (6) described above are repeatedly arranged six times in the rotation direction 101 of the rotary shaft 50 on the first surface 32a.

  As described above, in the magnet portion 32, the magnetic pole group 201 described in (1) to (6) is repeatedly arranged on the first surface 32a, and the above-described (1) to (6) is described on the second surface 32b. The magnetic pole set 202 has a Halbach array structure in which the magnetic pole sets 202 are repeatedly arrayed.

  FIG. 11 is a partially developed view showing a part of the outer peripheral surface of the magnet part 32 of FIG. In FIG. 11, magnets 33-0, 33-1, 33-2, and 33-3 sequentially arranged at intervals d <b> 0 in the X direction that is the circumferential direction of the rotating shaft 50 among the twelve magnets 33 in total. The magnet 34-1 inserted and filled at a distance d0 between a pair of adjacent magnets 33-0 and 33-1, and the insertion and filling at a distance d0 between a pair of adjacent magnets 33-1 and 33-2. A magnet 34-2 that is inserted and filled at a distance d0 between a pair of adjacent magnets 33-2 and 33-3 is shown.

  The magnet 33-1 has a magnetization direction 111 from the S pole parallel to the Y direction to the N pole, and the magnet 33-2 has a magnetization direction 113 from the S pole to the N pole parallel to the -Y direction. A magnet 34-2 inserted at a distance d0 between a pair of adjacent magnets has a magnetization direction 112 from the S pole to the N pole parallel to the X direction. Thereby, between the magnet 33-1 and the magnet 33-2, a magnetic path is connected by the magnet 34-2, and it forms in a substantially U shape, and magnetic flux (phi) generate | occur | produces in the 1st surface 32a.

  Here, the length d1 in the X direction of the magnet 33-1 and the magnet 33-2 is preferably longer in order to generate more magnetic flux φ and obtain high power generation efficiency. On the other hand, the magnet 34-2 may be formed by connecting a magnetic path between the magnet 33-1 and the magnet 33-2, and the interval d0 for inserting the magnet 34-2 may be short. Therefore, the length d1 in the X direction of the magnet 33-1 and the magnet 33-2 is longer than the interval d0.

  FIG. 12 is a cross-sectional view of the power generation device 1-4 taken along the line XI-XI ′ of FIG. 9A. The cross-sectional view shown in FIG. 12 is a cross-sectional view of the power generation device 1-4 as seen in the direction of the arrow along the line XI-XI ′ shown in FIG. 9A. 12 shows a pair of magnets adjacent to each other among the twelve magnets 33 of the magnet portion 32 corresponding to the magnets 33-1 and 33-2 and the magnets 34-1 and 34-2 and 34-3 in FIG. 33-1 and 33-2, a magnet 34-2 inserted and filled at a distance d0 between a pair of adjacent magnets 33-1 and 33-2, and a magnet 34-1 adjacent to the magnet 34-2. , 34-3. Further, FIG. 12 shows a pair of adjacent apertures 15-1 and 15-2 of 15 of the rotating plate 12 and a pair of adjacent coils of the 12 coils 42 of the induction coil unit 41. 42-1 and 42-2, and a pair of magnetic poles 73-1 and 73-2 adjacent to each other among the 12 magnetic poles 73 of the yoke 70 are shown.

  In FIG. 12, the magnetic flux φ generated from the N pole of the magnet 33-2 sandwiched between the N pole of the magnet 34-3 and the N pole of the magnet 34-2 is wound by the opening 15-2 and the coil 42-2. The S pole of the magnet 34-2 and the magnet 34 pass through the rotated magnetic pole 73-2, the bottom portion 71 of the yoke 70, the magnetic pole 73-1 around which the coil 42-1 is wound, and the opening 15-1. -1 enters the S pole of the magnet 33-1 sandwiched between the S poles of the magnet 33-1 and reaches the N pole of the magnet 33-1, and the S poles and N poles of the magnet 34-2 and the magnet 33-2 It passes through the S pole and reaches the N pole of the magnet 33-2. As a result, a closed magnetic path is formed in the magnet portion 32 and the bottom surface portion 71 of the yoke 70, and no magnetic path is formed in the peripheral side surface portion 72 of the yoke 70 and the peripheral side surface portion 82 and the bottom surface portion 81 of the yoke 80.

  Operation | movement of the electric power generating apparatus 1-4 comprised as mentioned above is demonstrated. The rotation shaft 50 rotates in the rotation direction 101 in conjunction with, for example, the rotational movement of the engine. At this time, the rotation plate 12 rotates in the rotation direction 102, and the fifteen openings 15 are connected to the twelve magnets 33 of the magnet unit 32. Between the twelve coils 42 of the induction coil section 41, the space through which the magnetic flux interlinking with each coil 42 passes sequentially. As a result, the magnetic flux density of the magnetic flux interlinking with each coil 42 is changed, and an electromotive force is induced in each coil 42 according to the change of the magnetic flux density according to Faraday's law of electromagnetic induction.

  As described above, the power generation device 1-4 according to the fourth embodiment has the same effects as the power generation devices 1-1 to 1-3 according to the first to third embodiments. Further, according to the power generation device 1-4 according to the fourth embodiment, each of the pair of magnets 33 adjacent to each other among the twelve magnets 33 of the magnet part 32 and each of the twelve magnets 34 adjacent to each other. A closed magnetic path is formed in the magnet portion 32 and the bottom surface portion 71 of the yoke 70 by the magnets 34 inserted and filled in the interval d0 between the pair of magnets 33, so that a large amount of magnetic flux is generated in the yoke 70. Instead of passing through the peripheral side surface portion 72, the peripheral side surface portion 82 and the bottom surface portion 81 of the yoke 80, the magnets 33 reach the adjacent magnets 33 through the bottom surface portion 71 of the yoke 70 as shown in FIG. Thereby, a magnetic path can be shortened and a loss can be reduced. In addition, magnetic flux can be positively generated on the first surface 32a of the magnet portion 32 on the induction coil portion 41 side, the magnetic flux can be increased, and as a result, the change in magnetic flux density can be increased. . As a result, the power generation efficiency can be increased.

  In addition, according to the power generation device 1-4 according to the fourth embodiment, the peripheral side surface portion 72 of the yoke 70, the peripheral side surface portion 82, and the bottom surface portion 81 of the yoke 80 do not function as magnetic paths. The bottom surface portion 81 can be reduced, and as a result, the size can be reduced. In addition, the peripheral side surface parts 72 and 82 and the bottom face part 81 may be provided for the purpose of shielding the inside of the structure.

  The present disclosure is not limited to the above-described embodiment, and various modifications can be made.

Modification 1
FIG. 13 is a schematic perspective view illustrating the configuration of the power generation device 1-1-1 according to the first modification. In FIG. 13, the power generator 1-1-1 of Modification 1 is further provided with a magnetic body 22 in the opening 20 of the rotating plate 10, as compared with the power generator 1-1 of Embodiment 1 shown in FIG. 1. It is different. According to this, in addition to the change in the magnetic flux density due to the opening 20, an increase in the magnetic flux density due to the magnetic body 22 can be realized. Thereby, the induced electromotive voltage in the coil 40 can be increased more efficiently.

  Further, similarly to the first modification, in the second and third embodiments, a magnetic body may be further provided in each opening 21a, 21b, 21c, 21d of the rotating plate 11, and in the fourth embodiment, each of the rotating plates 12 may be provided. A magnetic material may be further provided in the opening 15.

Modification 2
FIG. 14 is a schematic perspective view illustrating a configuration of a power generation device 1-1-2 according to Modification 2. In FIG. 14, the power generation device 1-1-2 of Modification 2 is different from the power generation device 1-1 of Embodiment 1 shown in FIG. 1 in the following points.
(1) Instead of the rotating plate 10 of the conductor plate of FIG. 1, a rotating plate 10A of a magnetic material plate is provided.
(2) The magnetic body 22 is further provided as a magnetic flux changing portion that is provided on the rotating plate 10A of FIG. 1 and changes the magnetic flux generated from the magnet 30 and interlinked with the coil 40.
According to the second modification, since the rotating plate 10A is a magnetic body, no eddy current is generated in the rotating plate 10A, and loss due to the generation of eddy current can be reduced. Further, since the magnetic body 22 changes the amount of magnetic flux interlinking the coil 40, an induced electromotive voltage can be obtained in the coil 40.

  Similarly to the second modification, in the second and third embodiments, the rotating plate 11 may be a magnetic plate. At this time, instead of the openings 21a, 21b, 21c, and 21d, a magnetic material is placed on the rotating plate 11. It may be provided. In the fourth embodiment, the rotating plate 12 may be a magnetic plate. At this time, a magnetic body may be provided on the insulating plate instead of the opening 15.

Modification 3
FIG. 15 is an exploded perspective view illustrating a configuration of a power generation device 1-4-1 according to Modification 3. In FIG. 15, the power generation device 1-4-1 of Modification 3 is the rotary plate 12 in which the 15 openings 15 of FIG. 7 are formed, compared to the power generation device 1-4 of Embodiment 4 shown in FIG. 7. It is different by the point provided with 12 A of rotation plates in which 12 opening 15 was formed instead of. Thereby, since the number of the magnets 33, the number of the coils 42, and the number of the openings 15 become the same, the phase of the electromotive force induced in each coil 42 can be made uniform.

Modification 4
FIG. 16 is a cross-sectional view of a power generation device 1-4-2 according to Modification 4. 16 corresponds to a cross-sectional view taken along the line XC-XC ′ in FIG. 9A. In FIG. 16, the power generation device 1-4-2 according to Modification 4 includes yokes 70 </ b> A and 80 </ b> A instead of the yokes 70 and 80 illustrated in FIG. 7, as compared with the power generation device 1-4 according to the fourth embodiment illustrated in FIG. 7. It differs in the point to prepare. The yoke 70A includes a thin cylindrical plate 72A made of aluminum instead of the peripheral side surface portion 72 that does not function as a magnetic path, and the yoke 80A is made of aluminum instead of the peripheral side surface portion 82 and the bottom surface portion 81 that do not function as a magnetic path. A thin cylindrical plate 82A and a circular flat plate 81A. As shown in FIG. 12, in the fourth embodiment, a closed magnetic path is formed in the magnet portion 32 and the bottom surface portion 71 of the yoke 70, and on the peripheral side surface portion 72 of the yoke 70, the peripheral side surface portion 82 and the bottom surface portion 81 of the yoke 80. Since no magnetic path is formed, the peripheral side surface portion and the bottom surface portion of the yoke can be made thin, and downsizing can be realized.

Modification 5
FIG. 17A is a partially developed view showing a part of the outer peripheral surface of the magnet part 32A according to the modified example 5. FIG. 17A, the magnet part 32A of the modified example 5 is different from the magnet part 32 of the fourth embodiment shown in FIG. 11 in that twelve magnets 34A are provided instead of the twelve magnets 34 of FIG. . In FIG. 17A, magnets 33-0, 33-1, 33-2, 33-3 out of twelve magnets 33, and magnets 34A-1, 34A-2, 34A-3 out of twelve magnets 34A. The upper surfaces of the magnets 33-0, 33-1, 33-2, and 33-3 in the figure constitute the first surface 32a, and the magnets 34A-1, 34A-2, and 34A-3 are illustrated. The lower surface constitutes the second surface 32b.

  In FIG. 17A, magnets 33-0, 33-1, 33-2, and 33-3 are positions having an angular difference of 30 ° around the rotation axis 50 and are in the X direction that is the rotation direction of the rotating plate 12. Are sequentially arranged with gaps 32g having predetermined intervals at substantially equal intervals. On the other hand, the magnets 34A-1, 34A-2, 34A-3 are positions having an angular difference of 30 ° around the rotation axis 50, and are sequentially arranged without gaps at substantially equal intervals in the X direction. The The magnets 33-0, 33-1, 33-2, and 33-3 are arranged such that the gaps 32g are positioned approximately at the center in the X direction of the magnets 34A-1, 34A-2, and 34A-3. 1, 34A-2, 34A-3.

  Each of the magnets 33-0, 33-1, 33-2, 33-3 is magnetized in the Y direction, which is a direction substantially parallel to the longitudinal direction of the rotating shaft 50, and the S pole to the N pole of a pair of adjacent magnets. Are provided such that the two magnetization directions heading toward each other are different from each other. On the other hand, each magnet 34A-1, 34A-2, 34A-3 is magnetized in the X direction, and is arranged so that the two magnetization directions from the south pole to the north pole of a pair of adjacent magnets are different from each other.

  For example, the magnet 33-1 has a magnetization direction 111 from the S pole parallel to the Y direction to the N pole, and the magnet 33-2 has a magnetization direction 113 from the S pole to the N pole parallel to the -Y direction. The magnet 34A-2 has a magnetization direction 112 from the S pole parallel to the X direction to the N pole. Thereby, between the magnet 33-1 and the magnet 33-2, a magnetic path is connected by the magnet 34-2, and it forms in a substantially U shape, and magnetic flux (phi) generate | occur | produces in the 1st surface 32a.

  The magnet part 32A according to the modified example 5 has a Halbach array structure in which the sets of the magnets 33-1 and 33-2 and the magnets 34A-1 and 34A-2 shown in FIG. 17A are repeatedly arranged six times in the X direction. . Thereby, the magnet part 32A, like the magnet part 32 of the fourth embodiment, repeatedly forms a plurality of magnetic paths that are substantially U-shaped and generates a large magnetic flux φ on the first surface 32a. it can.

Modification 6
FIG. 17B is a partial development view showing a part of the outer peripheral surface of the magnet part 32B according to Modification 6. In FIG. 17B, the magnet part 32B of the modified example 6 is different from the magnet part 32A of the modified example 5 shown in FIG. 17A in that twelve magnets 33A are provided instead of the twelve magnets 33 in FIG. 17A. . In FIG. 17B, the magnets 33A-0, 33A-1, 33A-2, 33A-3 of the twelve magnets 33A and the magnets 34A-1, 34A-2, 34A of the twelve magnets 34A described above. -3, the upper surface of the magnets 33A-0, 33A-1, 33A-2, 33A-3 in the figure constitutes the first surface 32a, and the magnets 34A-1, 34A-2, 34A-3 The upper and lower surfaces in the figure constitute the second surface 32b.

  In FIG. 17B, magnets 33A-0, 33A-1, 33A-2, and 33A-3 differ from magnets 33-0, 33-1, 33-2, and 33-3 in FIG. 17A in the following points. The magnets 33A-0, 33A-1, 33A-2, 33A-3 are provided without the gap 32g in the X direction, and the magnets 33A-0, 33A-1, 33A-2, 33A-3 are mutually connected. The magnets 34A-1, 34A-2, and 34A-3 are juxtaposed on the magnets 34A-1, 34A-2, and 34A-3 so that the boundary between a pair of adjacent magnets is positioned at the approximate center in the Y direction of each magnet 34A-1, 34A-2, and 34A-3. .

  The magnet part 32B according to the modified example 6 has a Halbach array structure in which pairs of magnets 33A-1 and 33A-2 and magnets 34A-1 and 34A-2 shown in FIG. 17B are repeatedly arranged in the X direction six times. . Thereby, similarly to the magnet part 32A of the modified example 5, the magnet part 32B repeatedly forms a plurality of magnetic paths that are substantially U-shaped, and generates a large magnetic flux φ on the first surface 32a. it can.

Other modified examples.
Here, the present disclosure can be variously modified as follows. In the first embodiment, the rotating plate 10 is a conductor plate, but the present disclosure is not limited to this, and the rotating plate 10 may be a nonmagnetic material such as aluminum. Similarly, in the second and third embodiments, the rotating plate 11 may be a non-magnetic plate. At this time, similarly to the first modification shown in FIG. 12, the magnetic body 22 is provided in each of the openings 21a, 21b, 21c, and 21d. May be further provided. In the fourth embodiment, the rotating plate 12 may be an insulating plate, and at this time, similarly to the first modification shown in FIG.

  In Embodiment 1, the rotating plate 10 has a rectangular shape. However, the present disclosure is not limited to this, and the rotating plate 10 may be a disk-shaped plate member. Similarly, in Embodiments 2 and 3, the rotating plate 10 is a disk-shaped plate member, but the present disclosure is not limited to this, and the rotating plate 10 may be rectangular. Alternatively, a plurality of rotating plates may be provided, and each opening 21a, 21b, 21c, 21d may be formed in each rotating plate.

  Furthermore, in Embodiment 1 and 2, although the magnet 30 was provided, this indication is not limited to this, You may provide the electromagnet which replaces with the magnet 30 and consists of a coil and a magnetic body core. In this case, according to the feature of the present disclosure, the magnetomotive force of the electromagnet for exciting the working magnetic field can be reduced, and the DC drive current flowing through the coil can be reduced. For this reason, weight reduction of a coil can be implement | achieved and a copper loss can also be made small.

  In the second and third embodiments, the rotating plate 11 includes four openings 21a, 21b, 21c, and 21d. However, the present disclosure is not limited to this, and may include one or more openings.

  In the third embodiment, the four coils 40a, 40b, 40c, and 40d are provided. However, the present disclosure is not limited to this, and two or more coils may be provided.

  Furthermore, in the third embodiment, the magnet 31 is configured by one magnet member, but the present disclosure is not limited thereto, and the magnet 31 may be configured by two or more individual magnet members. At this time, two or more individual magnet members and two or more coils may be disposed so as to face each other. In addition, each of the individual magnet members may be a member that generates a magnetic flux having the same strength, or may be a member that generates a magnetic flux having different strengths.

  In the fourth embodiment, the rotating plate 10 includes twelve openings 20, but the present disclosure is not limited thereto, and the rotating plate 10 may include one or more openings 20. In the fourth embodiment, the induction coil unit 41 includes twelve coils 42, but the present disclosure is not limited thereto, and the induction coil unit 41 may include one or more coils 42. In the fourth embodiment, the magnet unit 32 includes twelve magnets 33 and twelve magnets 34. However, the present disclosure is not limited thereto, and the magnet unit 32 includes two or more magnets 33 and magnets 34. May be.

  Note that the configurations described in the first to fourth embodiments may be combined as appropriate.

  Various modifications and changes may be made without departing from the spirit and scope of the disclosure as set forth in the claims.

Summary of embodiments.
The power generator according to the first aspect is
A magnet section;
A first induction coil unit that includes a first winding, has a first space having a predetermined first interval with the magnet unit, and is provided facing the magnet unit in the longitudinal direction of the rotation shaft. When,
A rotating part coupled to be orthogonal to the rotation axis and rotatable;
A first magnetic flux changing unit that is provided in the rotating unit and changes a magnetic flux generated from the magnet unit and interlinked with the first induction coil unit;
The magnet part and the first induction coil part are fixed so that the first magnetic flux changing part passes through the first space when the rotating part rotates,
The magnet portion is magnetized in a direction substantially parallel to the longitudinal direction of the rotating shaft, and is magnetized in a rotating direction of the rotating shaft, and a plurality of first magnets sequentially arranged on the outer peripheral portion of the magnet portion, A plurality of second magnets sequentially arranged on the outer periphery of the magnet portion,
The magnetization directions of each pair of first magnets adjacent to each other among the plurality of first magnets are different from each other,
The magnetization directions of each pair of second magnets adjacent to each other among the plurality of second magnets are different from each other,
The plurality of first magnets and the plurality of second magnets connect a magnetic path by one of the plurality of second magnets between each pair of adjacent first magnets. Placed in.

The power generator according to the second aspect is the power generator according to the first aspect,
The plurality of first magnets are arranged with a predetermined second interval between each pair of adjacent first magnets,
Each said 2nd magnet is inserted in the said 2nd space | interval.

The power generator according to the third aspect is the power generator according to the first aspect,
The plurality of first magnets are arranged with a predetermined gap between each pair of first magnets adjacent to each other,
The plurality of first magnets are juxtaposed so that the gap is positioned on each second magnet in the circumferential direction of the rotation shaft.

The power generation device according to the fourth aspect is the power generation device according to the first aspect,
The plurality of first magnets are arranged adjacent to each other, and a boundary between each pair of the first magnets adjacent to each other is positioned on the second magnets in the circumferential direction of the rotating shaft. Juxtaposed.

The power generator according to the fifth aspect is the power generator according to the first or second aspect,
The magnet part is magnetized in a direction substantially parallel to the longitudinal direction of the rotating shaft and the first S pole magnetized in the rotating direction of the rotating shaft on the surface on the first induction coil part side. 2 S poles, a third S pole magnetized in the rotating direction of the rotating shaft, a first N pole magnetized in the rotating direction of the rotating shaft, and substantially parallel to the longitudinal direction of the rotating shaft A Halbach array structure in which a set of magnetic poles in which a second N pole magnetized in the direction and a third N pole magnetized in the rotation direction of the rotating shaft are sequentially arranged is repeatedly arranged.

The power generation device according to a sixth aspect is the power generation device according to any one of the first to fifth aspects,
The rotating part further includes a second magnetic flux changing part provided in the rotating part so as to pass through the first space when the rotating part rotates.

The power generation device according to the seventh aspect is the power generation device according to any one of the first to sixth aspects,
A second induction coil unit provided with a second winding, having a second space with a predetermined third interval from the magnet unit, and provided facing the magnet unit in the longitudinal direction of the rotation shaft Further comprising
The second induction coil unit is fixed so that the magnetic flux changing units pass through the second space when the rotating unit rotates.

The power generation device according to the eighth aspect is the power generation device according to any one of the first to seventh aspects,
The rotating part is a conductor plate orthogonal to the rotation axis;
Each said magnetic flux change part is an opening formed in the said rotation part.

A power generation device according to a ninth aspect is the power generation device according to the eighth aspect,
Each magnetic flux change part further includes a magnetic body provided in the opening.

The power generation device according to the tenth aspect is the power generation device according to any one of the first to seventh aspects,
The rotating part is an insulator plate orthogonal to the rotation axis,
Each said magnetic flux change part is a magnetic body provided in the said rotation part.

A power generation device according to an eleventh aspect is the power generation device according to any one of the first to tenth aspects,
A yoke that forms a magnetic path around which the magnetic flux interlinking with each induction coil section circulates around the magnet section is further provided.

  The power generation device according to the present disclosure can be applied to, for example, a vehicle generator or a charging generator.

1-1, 1-2, 1-3, 1-4, 1-1-1, 1-1-2, 1-4-1, 1-4-2 ... power generation device,
10, 10A, 11, 12, 12A ... rotating plate,
10a ... one end,
10b ... the other end,
10h, 11h, 12h ... shaft hole,
10m ... moving conductor,
11a, 12a ... center,
11b, 12b ... outer peripheral part,
15, 20, 21a, 21b, 21c, 21d ... opening,
22 ... Magnetic material,
30, 31, 33, 33A, 34, 34A ... magnets,
32, 32A, 32B ... magnet part,
32a ... first surface,
32b ... the second surface,
32g ... gap,
40, 40a, 40b, 40c, 40d, 42 ... coil,
41 ... induction coil part,
50 ... rotating shaft,
60 ... support part,
70, 70A, 80, 80A ... Yoke,
70h, 80h ... bearing holes,
70m ... magnetic pole,
71, 81 ... bottom surface,
72, 72A, 82, 82A ... peripheral side surface,
73: Magnetic pole.

Claims (11)

A magnet section;
A first induction coil unit that includes a first winding, has a first space having a predetermined first interval with the magnet unit, and is provided facing the magnet unit in the longitudinal direction of the rotation shaft. When,
A rotating part coupled to be orthogonal to the rotation axis and rotatable;
A first magnetic flux changing unit that is provided in the rotating unit and changes a magnetic flux generated from the magnet unit and interlinked with the first induction coil unit;
The magnet part and the first induction coil part are fixed so that the first magnetic flux changing part passes through the first space when the rotating part rotates,
The magnet portion is magnetized in a direction substantially parallel to the longitudinal direction of the rotating shaft, and is magnetized in a rotating direction of the rotating shaft, and a plurality of first magnets sequentially arranged on the outer peripheral portion of the magnet portion, A plurality of second magnets sequentially arranged on the outer periphery of the magnet portion,
The magnetization directions of each pair of first magnets adjacent to each other among the plurality of first magnets are different from each other,
The magnetization directions of each pair of second magnets adjacent to each other among the plurality of second magnets are different from each other,
The plurality of first magnets and the plurality of second magnets connect a magnetic path by one of the plurality of second magnets between the pair of first magnets adjacent to each other. Power generator arranged so that. The plurality of first magnets are arranged with a predetermined second interval between each pair of adjacent first magnets,
The power generator according to claim 1, wherein each of the second magnets is inserted at the second interval. The plurality of first magnets are arranged with a predetermined gap between each pair of first magnets adjacent to each other,
2. The power generation device according to claim 1, wherein the plurality of first magnets are juxtaposed such that the gaps are positioned on the second magnets in a rotation direction of the rotation shaft.   The plurality of first magnets are arranged adjacent to each other, and a boundary between each pair of the first magnets adjacent to each other is positioned on the second magnets in the circumferential direction of the rotating shaft. The power generator according to claim 1, which is juxtaposed.   The magnet part is magnetized in a direction substantially parallel to the longitudinal direction of the rotating shaft and the first S pole magnetized in the rotating direction of the rotating shaft on the surface on the first induction coil part side. 2 S poles, a third S pole magnetized in the rotating direction of the rotating shaft, a first N pole magnetized in the rotating direction of the rotating shaft, and substantially parallel to the longitudinal direction of the rotating shaft 2. A Halbach array structure in which a set of magnetic poles in which a second N pole magnetized in a direction and a third N pole magnetized in a circumferential direction of the rotating shaft are sequentially arranged is repeatedly arranged. Or the electric power generating apparatus of 2.   The power generation according to any one of claims 1 to 5, further comprising a second magnetic flux changing portion provided in the rotating portion so as to pass through the first space when the rotating portion rotates. apparatus. A second induction coil unit provided with a second winding, having a second space with a predetermined third interval from the magnet unit, and provided facing the magnet unit in the longitudinal direction of the rotation shaft Further comprising
The said 2nd induction coil part is fixed to any one of Claims 1-6 fixed so that each said magnetic flux change part may pass said 2nd space when the said rotation part rotates. The power generator described. The rotating part is a conductor plate orthogonal to the rotation axis;
Each said magnetic flux change part is an opening formed in the said rotation part, The electric power generating apparatus as described in any one of Claims 1-7.   The power generator according to claim 8, wherein each of the magnetic flux change units further includes a magnetic body provided in the opening. The rotating part is an insulator plate orthogonal to the rotation axis,
Each said magnetic flux change part is a magnetic body provided in the said rotation part, The electric power generating apparatus as described in any one of Claims 1-7.   The power generator according to any one of claims 1 to 10, further comprising a yoke that forms a magnetic path in which a magnetic flux interlinking with each induction coil section circulates around the magnet section.

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