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WO2021161576A1 - Generator - Google Patents

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Publication number
WO2021161576A1
WO2021161576A1 PCT/JP2020/036386 JP2020036386W WO2021161576A1 WO 2021161576 A1 WO2021161576 A1 WO 2021161576A1 JP 2020036386 W JP2020036386 W JP 2020036386W WO 2021161576 A1 WO2021161576 A1 WO 2021161576A1
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WO
WIPO (PCT)
Prior art keywords
magnet
control panel
side control
drive
drive side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/036386
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French (fr)
Japanese (ja)
Inventor
昭夫 吉村
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Individual
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Individual
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Filing date
Publication date
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Publication of WO2021161576A1 publication Critical patent/WO2021161576A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos

Definitions

  • the present invention relates to a generator.
  • a generator using a magnet is a generator in which a coil and a magnet are arranged in the vicinity, and when the magnet is moved to change the magnetic field, an induced current flowing through the coil by electromagnetic induction is used to generate power.
  • Various inventions have been made with respect to such a generator (see, for example, Patent Document 1).
  • Patent Document 1 regarding the rotor of a permanent magnet generator, a plurality of plate-shaped permanent magnets attached to the outer periphery of a rotating shaft in the circumferential direction, and a plurality of plate-shaped permanent magnets attached on the permanent magnets to form magnetic poles.
  • a technique relating to a rotor including a magnetic plate and a plurality of non-magnetic members fixed to the outer periphery of the rotating shaft while forming a cylindrical body by alternately joining the magnetic plate in the circumferential direction is disclosed. ing.
  • a plate-shaped permanent magnet common to small and large rotors can be used by simply changing the shape and details of the magnetic plate according to the external dimensions of the rotor. Moreover, the permanent magnet can be covered from the outside to prevent cracking due to collision of a jig or the like.
  • the inventor of the present application has invented a generator capable of efficiently generating power and reducing the torque required for power generation through various experimental prototypes and the like.
  • the generator according to the present invention comprises a first magnet and a second magnet in which the directions of the magnetic poles are reversed from those of the first magnet.
  • the magnet body is formed so that the magnetic pole surface and the magnetic pole surface of the second magnet form the same surface, and the magnet body is arranged adjacent to one magnetic pole surface of the magnet body, and is arranged in accordance with the rotation of the drive side control panel.
  • a rotatable disk-shaped drive-side control panel having an iron plate capable of switching between attraction and non-adsorption on the magnetic pole surfaces of the first magnet and the second magnet, and the magnet sandwiching the drive-side control panel. It is characterized by including a conductor coil arranged on the opposite side of the main body and a power generator for generating rotational power for rotating the drive side control panel.
  • the generator according to the present invention comprises a first magnet and a second magnet in which the directions of the first magnet and the magnetic poles are reversed, and the first magnet is used.
  • a magnet body formed so that the magnetic pole surface of the magnet and the magnetic pole surface of the second magnet form the same surface, and one of the magnetic pole surfaces of the magnet body are arranged adjacent to each other, and the rotation of the drive side control panel
  • An iron plate capable of switching between attraction and non-adsorption is provided on the magnetic pole surfaces of the first magnet and the second magnet at predetermined intervals in the circumferential direction of the side surface of the drive-side control panel, and is a rotatable disk.
  • the generator 1 shown in FIGS. 1 and 2 includes a magnet body 2, a drive-side control panel 3, a counter-drive-side control panel 4, a rotary shaft 5, a fixed shaft 6, a plurality of conductor coils 7, a coil frame 8, and an auxiliary coil frame. 9. It has a power generator 10, a coupling 11, a reinforcing ring 12, a wiring 13, a power storage device 14, a base portion 15, and the like.
  • the generator 1 is a generator that generates alternating current by utilizing an induced current flowing through a conductor coil 7 by electromagnetic induction in accordance with a change in the magnetic field of the magnet body 2 that occurs when the power generator 10 is driven.
  • the magnet body 2 is a magnet body portion made of a magnet such as a permanent magnet, and is formed in a columnar shape. Details will be described later with reference to FIGS. 3 and 4.
  • the magnet body 2 is connected and fixed to the fixed shaft 6 and is immovable.
  • the counter-drive side control panel 4 is a rotatable disk-shaped thin plate arranged adjacent to the side surface of the magnet body 2 opposite to the drive-side control panel 3 side.
  • the counter-drive side control panel 4 is connected to the drive-side control panel 3 and rotates with the rotation of the drive-side control panel 3, and due to the action of the counter-drive side control panel 4 and the magnet body 2, the magnetic pole of the magnet body 2 It is a second magnetic pole (magnetic field) changing means that creates a (magnetic field) change.
  • the drive side control panel 3 and the counter drive side control panel 4 are arranged so as to face each other with the magnet body 2 interposed therebetween.
  • the disk-shaped drive-side control panel 3 and the counter-drive-side control panel 4 are connected to each other by bolts and nuts or the like in the vicinity of the outer peripheral edge (see FIG. 5).
  • the drive-side control panel 3 and the counter-drive-side control panel 4 rotate simultaneously on both sides of the magnet body 2, thereby creating a change in the magnetic field of the magnet body 2. Details will be described later with reference to FIG. 5 and the like.
  • the rotating shaft 5 is a rod-shaped body made of carbon steel or stainless steel for mechanical structure such as S35 to 45C that rotates the drive side control panel 3.
  • One end of the rotating shaft 5 is connected to the drive side control panel 3, and the other end is connected to the power generator 10 via the coupling 11.
  • the rotating shaft 5 axially passes through the coil frame 8 and the auxiliary coil frame 9 on the drive side control panel 3 side via a double bearing (not shown) having a shaft runout prevention function.
  • the conductor coil 7 is provided on the right side of the drive side control panel 3 in FIG. 1 and on the left side of the counter drive side control panel 4 in FIG. 1, and is not shown.
  • This is a horizontally long coil produced by spirally winding an enamel wire having a diameter of 0.2 mm and a length of 100 m around the iron core of the above.
  • each of the plurality of conductor coils 7 is configured to correspond to the cut-out region of the coil frame 8 and the auxiliary coil frame 9.
  • 24 conductor coils 7, which are the number of cut-out regions of the coil frame 8 and the auxiliary coil frame 9, are opposite to the magnet body 2 with the drive side control panel 3 sandwiched between them, and the counter drive side control panel.
  • the magnet body 2 is arranged on the opposite side of the magnet body 2 with the 4 in between.
  • each of the plurality of conductor coils 7 is connected to a wiring 13 or the like which is an electric wiring, and is connected to a power storage device 14 for storing electricity via the wiring 13.
  • the coil frame 8 is erected on the base portion 15 at a predetermined distance from both side surfaces of the magnet body 2 in order to support each of the plurality of conductor coils 7, and is formed of, for example, a non-magnetic material plate such as an aluminum plate. It is a frame with square sides.
  • the coil frame 8 is formed with an outer communication hole 8a and an inner communication hole 8b for communicating a plurality of conductor coils 7.
  • the shapes and numbers of the outer communication holes 8a and the inner communication holes 8b will be described together with the description of FIG.
  • the auxiliary coil frame 9 is erected on the base portion 15 at a predetermined distance from the coil frame 8 in order to assist the support of each of the plurality of conductor coils 7 by the coil frame 8, and is a non-magnetic material plate such as an aluminum plate. It is a frame body having a square side surface formed by.
  • the auxiliary coil frame 9 is formed with an outer communication hole 9a and an inner communication hole 9b for communicating a plurality of conductor coils 7.
  • the shapes and numbers of the outer communication holes 9a and the inner communication holes 9b will be described together with the description of FIG.
  • the power generator 10 is a hand-cranked speed increaser in which the user rotates the handle 10a to accelerate the speed by an internal speed increasing gear (not shown).
  • the output shaft (not shown) of the power generator 10 is connected to the coupling 11. That is, the power generator 10 generates the rotational power of the rotary shaft 5 that rotates the drive side control panel 3 via the coupling 11.
  • the coupling 11 is preferably a ratchet type coupling, for example. This is because even if the rotation of the output shaft of the power generator 10 is temporarily interrupted, the rotating shaft 5 can be idled to maintain the power generation state. That is, even when the handle 10a of the power generator 10 which is a hand-cranked speed increaser is rotated to near the maximum rotation speed and the user releases the hand, the inertial force due to the power generator 10 rotating by inertia. Can be used to idle the rotating shaft 5 to maintain the power generation state.
  • the reinforcing ring 12 is a ring-shaped wood-based material such as laminated wood provided around the outer circumference of the magnet body 2 with a slight gap between the magnet body 2 and the magnet body 2.
  • the reinforcing ring 12 is provided to prevent distortion of the drive side control panel 3 and the counter drive side control panel 4. That is, the situation where these control panels are distorted due to insufficient strength due to the magnetic force constantly acting between the drive side control panel 3 or the counter-drive side control panel 4 and the magnet body 2, and the gap between the magnet body 2 cannot be adjusted. It is provided to prevent the situation.
  • Wiring 13 is electrical wiring.
  • the power storage device 14 is a device that stores electricity generated by the generator 1.
  • the base portion 15 is a plate-like body having a substantially rectangular plane, and a coil frame 8, an auxiliary coil frame 9, and a power generator 10 are erected on the base portion 15.
  • FIG. 3 is a diagram showing an example of a magnet main body according to the present embodiment.
  • the magnet body 2 is composed of an outer hollow columnar magnet (first magnet) 21 and an inner hollow columnar magnet (second magnet) 22.
  • These magnets 21 and 22 are configured to have the same surface area, thickness, and magnetic flux density, and differ only in shape.
  • the outer diameter and inner diameter of the magnets 21 and 22 are set so that the surface areas of the magnets 21 and 22 are the same.
  • the radius of the magnet 22 is configured to have substantially the same length as the radius of the hollow portion of the magnet 21.
  • a wet anisotropic ferrite magnet is used as the magnets 21 and 22 constituting the magnet body 2.
  • the magnetic flux densities of the magnets 21 and 22 are about 107 mT, and the thickness is 10 mm.
  • Such a magnet body 2 is manufactured by inserting a magnet 22 inside the magnet 21 and fixing it with an adhesive or the like.
  • the magnet 21 and the magnet 22 are fixed so that the magnetic pole surface of the magnet 21 and the magnetic pole surface of the magnet 22 form the same surface in a state where the directions of the magnetic poles of the N pole and the S pole are opposite to each other.
  • the magnet 21 has an S pole on the upper side and an N pole on the lower side
  • the magnet 22 has an N pole on the upper side and an S pole on the lower side.
  • a jig is used as necessary.
  • Such a magnet body 2 has the characteristics described later with reference to FIG.
  • FIG. 4 is a diagram for explaining the characteristics of the magnet body according to the present embodiment.
  • magnets M1 and M2 (hereinafter, also simply referred to as “magnets M1 and M2”) arranged close to each other will be illustrated and described.
  • the magnets M1 and M2 are configured to have the same surface area, thickness, and magnetic flux density, and are arranged in a state in which the directions of the north pole and the south pole are opposite to each other.
  • an iron plate S having a width sufficient to hide one side of both magnets M1 and M2 is attracted to one side. Then, while the magnetic poles on the side of the permanent magnets M1 and M2 that are attracted to the iron plate S disappear, the magnetic poles of the magnetic poles on the side that are not attracted to the iron plate S increase by ⁇ (delta) N and ⁇ (delta) S, respectively, and are about 1. It was found to be 1 to 1.2 times higher. When the iron plate S is removed, it returns to the original state shown in FIG. 4 (a).
  • the characteristic that the magnetic force of the magnetic pole on the side of the magnets M1 and M2 that is not attracted to the iron plate S increases or decreases according to the adsorption / non-adsorption of the iron plate S is also referred to as a polar change of the magnet.
  • the iron plate S that causes a polar change of the magnet is also referred to as a seal iron plate.
  • the magnets M1 and M2 in FIG. 4 correspond to the magnets 21 and 22 constituting the magnet body 2 shown in FIG. 3, respectively.
  • the adsorption of the iron plate S referred to here includes the case where there is a minimum minimum gap of, for example, about 1 mm between the iron plate S and the magnets M1 and M2.
  • an induced current is passed through a conductor coil arranged on the opposite side of the magnet main body 2 with the iron plate sandwiched by attaching and detaching a predetermined iron plate to the upper surface or the lower surface of the magnet main body 2. It has the property of being able to.
  • the iron plate S is, for example, an SS material such as SS400 (rolled steel material for general structure) having a thickness of 1 mm.
  • the magnets M1 and M2 are, for example, ferrite magnets having a magnetic flux density of 100 mT, a diameter of 20 mm, and a thickness of 5 mm.
  • the thickness of the iron plate S is preferably about 30% of the thickness of the magnets M1 and M2. That is, it is preferable that the thickness of the iron plate S is changed according to the magnitude of the magnetic flux densities of the magnets M1 and M2.
  • FIG. 5 is a diagram showing an example of a drive side control panel and a counter drive side control panel according to the present embodiment.
  • the magnet body 2, the driving side control panel 3, and the counter-driving side control panel 4 are shown separately from each other.
  • the drive side control panel 3 shown in FIG. 5 includes a main body 31, a plurality of seal iron plates 32, a plurality of inner auxiliary iron cores 33a, and a plurality of outer auxiliary iron cores 33b (hereinafter, when the inner auxiliary iron core 33a and the outer auxiliary iron core 33b are collectively referred to). It also has a simple "auxiliary iron core 33").
  • auxiliary iron core 33 six seal iron plates 32, an inner auxiliary iron core 33a, and an outer auxiliary iron core 33b are shown, respectively, but the number is not limited to six.
  • the main body 31 is a disk-shaped thin plate, for example, a non-magnetic plate such as an aluminum plate having a plate thickness of 2.0 mm.
  • the outer diameter of the main body 31 is substantially the same as the outer diameter of the magnet main body 2 (magnet 21).
  • a region in which the seal iron plate 32, the inner auxiliary iron core 33a, and the outer auxiliary iron core 33b, which will be described later, are fitted is cut out in the plate width direction.
  • the inner auxiliary iron core 33a is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, having a diameter of L1 or less from the vicinity of the center of the side surface of the main body 31.
  • the inner auxiliary iron core 33a is fitted into the cut-out region of the main body 31 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 31 and fixed with an adhesive or the like.
  • the diameter length L1 is shorter than the outer diameter L of the magnet 22.
  • the outer auxiliary iron core 33b is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, from the diameter L2 of the main body 31 to the vicinity of the outer circumference.
  • the outer auxiliary iron core 33b is fitted into the cut-out region of the main body 31 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 31 and fixed with an adhesive or the like.
  • the diameter length L2 is a length longer than the outer diameter L of the magnet 22.
  • the drive side control panel 3 has a main body 31, a plurality of seal iron plates 32, a plurality of inner auxiliary iron cores 33a, and a plurality of outer auxiliary iron cores 33b.
  • the seal iron plate 32 and the combination of the inner auxiliary iron core 33a and the outer auxiliary iron core 33b are alternately arranged in the lateral circumferential direction of the main body 31.
  • the central angles of the respective seal iron plates 32 and the inner auxiliary iron cores 33a and outer auxiliary iron cores 33b are the same.
  • the seal iron plate 32 and the auxiliary iron core 33 are alternately attracted to the magnetic pole surface of the magnet body 2.
  • the seal iron plate 32 causes a change in the magnetic poles of the magnet body 2 according to the adsorption / non-adsorption of the seal iron plate 32.
  • the auxiliary core 33 is for increasing the magnetic flux of the magnet body 2 by attracting the auxiliary core 33 to the magnet 21 and the magnet 22, respectively.
  • the suction referred to here includes the case where there is a minimum minimum gap of, for example, about 1 mm between the seal iron plate 32 (or the auxiliary iron core 33) and the magnets 21 and 22.
  • the magnetic flux of the magnet body 2 is controlled by a pair of one seal iron plate 32 and the adjacent auxiliary iron core 33. Further, the frequency is determined by the number of sets included in the drive side control panel 3. For example, when the frequency is 60 Hz and the rotation speed is 10 times / sec, the number of sets is 6.
  • the main body 41 is a disk-shaped thin plate, for example, a non-magnetic plate such as an aluminum plate having a plate thickness of 2.0 mm.
  • the outer diameter of the main body 41 is substantially the same as the outer diameter of the magnet main body 2 (magnet 21).
  • a region in which the seal iron plate 42, the inner auxiliary iron core 43a, and the outer auxiliary iron core 43b, which will be described later, are fitted is cut out in the plate width direction.
  • the seal iron plate 42 is an annular fan-shaped steel plate having a diameter from the vicinity of the center of the side surface to the vicinity of the outer circumference of the main body 41, for example, a plate thickness of 2.3 mm.
  • the seal iron plate 42 is fitted into the cut-out region of the main body 41 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 41, and is fixed with an adhesive or the like.
  • the inner auxiliary iron core 43a is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, having a diameter of L1 or less from the vicinity of the center of the side surface of the main body 41.
  • the inner auxiliary iron core 43a is fitted into the cut-out region of the main body 41 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 41, and is fixed with an adhesive or the like.
  • the outer auxiliary iron core 43b is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, from the diameter L2 of the main body 41 to the vicinity of the outer circumference.
  • the outer auxiliary iron core 43b is fitted into the cut-out region of the main body 41 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 41, and is fixed with an adhesive or the like.
  • the counter-drive side control panel 4 has a main body 41, a plurality of seal iron plates 42, a plurality of inner auxiliary iron cores 43a, and a plurality of outer auxiliary iron cores 43b.
  • the seal iron plate 42 and the combination of the inner auxiliary iron core 43a and the outer auxiliary iron core 43b are alternately arranged in the lateral circumferential direction of the main body 41.
  • the central angles of the respective seal iron plates 42 and the inner auxiliary iron cores 43a and outer auxiliary iron cores 43b are the same.
  • the seal iron plate 42 and the auxiliary iron core 43 are alternately attracted to the magnetic pole surface of the magnet body 2.
  • the seal iron plate 42 causes a change in the magnetic poles of the magnet body 2 according to the adsorption / non-adsorption of the seal iron plate 42.
  • the auxiliary iron core 43 is for increasing the magnetic flux of the magnet body 2 by attracting the auxiliary iron core 43 to the magnet 21 and the magnet 22, respectively.
  • the positions of the seal iron plates 32 and 42 are connected at different angles. Specifically, the central angle of the annular fan-shaped seal iron plates 32 and 42 (30 in the present embodiment) so that the seal iron plates 32 and 42 are alternately attracted at the same position along the rotation direction of the side surface of the magnet body 2. °) and connect by shifting.
  • the shapes and numbers of the outer communication holes 8a and the inner communication holes 8b of the coil frame 8 shown in FIGS. 1 and 2 are all sealed iron plates 32 (or counter-drive control panels 4) in the drive side control panel 3 (or anti-drive control panel 4).
  • the shape and number of the outer auxiliary core 33a and the inner auxiliary core 33b (or the outer auxiliary core 43a and the inner auxiliary core 43b) when the seal iron plate 42) is replaced with the auxiliary core 33 (or the auxiliary core 43) are the same.
  • FIG. 6 is a diagram for explaining the effect of preventing the generation of cogging torque according to the present embodiment.
  • the width dimension of the auxiliary iron cores 33 and 43 and the conductor coil 7 (strictly speaking, the coil iron core) on the rotation direction side is always set to the suction area. Make the width dimension so that does not change.
  • FIG. 6 shows a view of the auxiliary iron core 33 viewed from the radial direction, and the arrows in the figure indicate the rotation direction of the drive side control panel 3.
  • the tip of the auxiliary core 33 reaches the position where the adsorption of the adjacent coil cores 7B starts.
  • the suction area of the auxiliary iron core 33 is not always changed. That is, by setting the width of the adjacent conductor coils 7 (coil cores) to be the width of the auxiliary core 33, it is possible to prevent the generation of cogging torque.
  • each seal iron plate 32 and each inner auxiliary iron core 33a and outer auxiliary iron core 33b are configured to have the same central angle.
  • each seal iron plate 42 and each inner auxiliary iron core 43a and outer auxiliary iron core 43b are configured to have the same central angle.
  • the magnetic force generated from the auxiliary iron core 33 invades the adjacent seal iron plate 32 side and leaks to the conductor coil 7 (coil iron core) located on the seal iron plate 32, and the conductor coil 7 is magnetized to reduce the electromotive force. It is possible to prevent the situation of inviting. This is because the magnetic force generated from the auxiliary core 33 is confined in the conductor coil 7 located on the auxiliary core 33.
  • the generator 1 As described above, according to the generator 1 according to the present embodiment, once the handle 10a of the power generator 10 which is a hand-cranked speed increaser is operated and started once, power generation can be performed for a long time. It is possible to generate electricity efficiently and reduce the torque required for power generation.
  • the power generator 10 is a hand-cranked speed increaser
  • the power generator 10 may be another power generating means that irregularly generates power, such as a blade (wind turbine) related to wind power generation, or a combination of a blade and a speed increaser that accelerates the rotation of the blade.
  • a blade wind turbine

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

The purpose of the present invention is to provide a generator capable of efficiently generating power and reducing torque required for power generation. The generator is characterized by comprising: a magnet body that includes a first magnet and a second magnet having a magnetic pole direction opposite to that of the first magnet and formed so that the magnetic pole surfaces of the two magnets constitute the same surface; a rotatable disc-shaped drive-side control panel that is disposed adjacent to one magnetic pole surface of the magnetic body and has a steel plate that can switch between adsorption and non-adsorption on the magnetic pole surfaces of the first magnet and the second magnet; a conductor coil that is disposed on a side opposite to the magnet body with the drive-side control panel interposed therebetween; and a power generation unit that generates rotational power for rotating the drive-side control panel.

Description

発電機Generator 参照による取り込みCapture by reference

　本出願は、２０２０年２月１３日に出願された日本特許出願特願２０２０－０２２９１１の優先権を主張し、その内容を参照することにより、本出願に取り込む。 This application claims the priority of Japanese Patent Application No. 2020-022911 filed on February 13, 2020, and incorporates it into this application by referring to its contents.

　本発明は、発電機に関する。 The present invention relates to a generator.

　従来、永久磁石等の磁石を利用した発電機が広く知られている。磁石を利用した発電機とは、コイルと磁石とを近傍に配置し、磁石を動かして磁界を変化させたときに電磁誘導によりコイルに流れる誘導電流を利用して発電を行う発電機である。このような発電機に関し、各種の発明がなされてきた（例えば特許文献１参照）。 Conventionally, generators using magnets such as permanent magnets are widely known. A generator using a magnet is a generator in which a coil and a magnet are arranged in the vicinity, and when the magnet is moved to change the magnetic field, an induced current flowing through the coil by electromagnetic induction is used to generate power. Various inventions have been made with respect to such a generator (see, for example, Patent Document 1).

　特許文献１には、永久磁石発電機の回転子に関し、回転軸の外周に円周方向に取り付けられた複数の板状の永久磁石と、該永久磁石上に取り付けられて磁極を構成する複数の磁性板と、該磁性板と交互に円周方向に接合されて円筒体を形成し、かつ上記回転軸の外周に固定された複数の非磁性部材とを備えた回転子に係る技術が開示されている。 In Patent Document 1, regarding the rotor of a permanent magnet generator, a plurality of plate-shaped permanent magnets attached to the outer periphery of a rotating shaft in the circumferential direction, and a plurality of plate-shaped permanent magnets attached on the permanent magnets to form magnetic poles. A technique relating to a rotor including a magnetic plate and a plurality of non-magnetic members fixed to the outer periphery of the rotating shaft while forming a cylindrical body by alternately joining the magnetic plate in the circumferential direction is disclosed. ing.

　特許文献１に係る技術によれば、回転子の外形寸法に応じて任意に磁性板の形状、細部を変えるだけで、小形、大形の回転子に共通の板状の永久磁石を利用可能にし、かつこの永久磁石を外側から被って、治具等の衝突による割れなどを防止することができる。 According to the technique according to Patent Document 1, a plate-shaped permanent magnet common to small and large rotors can be used by simply changing the shape and details of the magnetic plate according to the external dimensions of the rotor. Moreover, the permanent magnet can be covered from the outside to prevent cracking due to collision of a jig or the like.

特開平４－１３８０４２号公報Japanese Unexamined Patent Publication No. 4-138042

　上記のように、磁石を利用した従来の発電機は、磁石又はコイルの少なくともいずれか一方を回転等させて動かすことで発電を行うことが一般的であった。しかしながら、磁石やコイルを動かすためには少なからずトルクを必要とするものであり、このようなトルクを低減させることが好ましかった。 As described above, in the conventional generator using a magnet, it is common to generate electricity by rotating or moving at least one of a magnet and a coil. However, a considerable amount of torque is required to move the magnet or coil, and it was preferable to reduce such torque.

　本願発明者は、各種の実験試作等を通して、効率的に発電可能で且つ発電に必要なトルクを低減可能な発電機を発明した。 The inventor of the present application has invented a generator capable of efficiently generating power and reducing the torque required for power generation through various experimental prototypes and the like.

　本発明は、上記の点に鑑みてなされたものであり、効率的に発電可能で且つ発電に必要なトルクを低減させることが可能な発電機を提供することを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to provide a generator capable of efficiently generating power and reducing the torque required for power generation.

　上記の目的を達成するために、本発明に係る発電機は、第１の磁石と、前記第１の磁石と磁極の向きを逆にした第２の磁石とからなり、前記第１の磁石の磁極面と前記第２の磁石の磁極面が同一面を構成するよう形成された磁石本体と、前記磁石本体の一方の磁極面に隣接して配設され、当該駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板を有する、回転可能な円盤状の駆動側制御盤と、前記駆動側制御盤を挟んで前記磁石本体と逆側に配設される導体コイルと、前記駆動側制御盤を回転させる回転動力を生成する動力生成器と、を備えたことを特徴とする。 In order to achieve the above object, the generator according to the present invention comprises a first magnet and a second magnet in which the directions of the magnetic poles are reversed from those of the first magnet. The magnet body is formed so that the magnetic pole surface and the magnetic pole surface of the second magnet form the same surface, and the magnet body is arranged adjacent to one magnetic pole surface of the magnet body, and is arranged in accordance with the rotation of the drive side control panel. A rotatable disk-shaped drive-side control panel having an iron plate capable of switching between attraction and non-adsorption on the magnetic pole surfaces of the first magnet and the second magnet, and the magnet sandwiching the drive-side control panel. It is characterized by including a conductor coil arranged on the opposite side of the main body and a power generator for generating rotational power for rotating the drive side control panel.

　また、上記の目的を達成するために、本発明に係る発電機は、第１の磁石と、前記第１の磁石と磁極の向きを逆にした第２の磁石とからなり、前記第１の磁石の磁極面と前記第２の磁石の磁極面が同一面を構成するよう形成された磁石本体と、前記磁石本体の一方の磁極面に隣接して配設され、当該駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板が当該駆動側制御盤の側面円周方向に所定間隔毎に設けられ、回転可能な円盤状の駆動側制御盤と、前記駆動側制御盤に接続され且つ前記磁石本体の他方の磁極面に隣接して配設され、当該反駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板が当該反駆動側制御盤の側面円周方向に所定間隔毎に設けられ、前記駆動側制御盤とともに回転可能な円盤状の反駆動側制御盤と、前記駆動側制御盤及び前記反駆動側制御盤の各々を挟んで前記磁石本体と逆側に配設される導体コイルと、前記駆動側制御盤を回転させる回転動力を生成する動力生成器と、を備え、前記駆動側制御盤が備える鉄板と、前記反駆動側制御盤が備える鉄板とは前記磁石本体の側面の回転方向に沿った同一位置において交互に前記磁石本体に吸着されることを特徴とする。 Further, in order to achieve the above object, the generator according to the present invention comprises a first magnet and a second magnet in which the directions of the first magnet and the magnetic poles are reversed, and the first magnet is used. A magnet body formed so that the magnetic pole surface of the magnet and the magnetic pole surface of the second magnet form the same surface, and one of the magnetic pole surfaces of the magnet body are arranged adjacent to each other, and the rotation of the drive side control panel An iron plate capable of switching between attraction and non-adsorption is provided on the magnetic pole surfaces of the first magnet and the second magnet at predetermined intervals in the circumferential direction of the side surface of the drive-side control panel, and is a rotatable disk. The first magnet and the first magnet are connected to the drive-side control panel and arranged adjacent to the other magnetic pole surface of the magnet body, and are arranged in accordance with the rotation of the counter-drive-side control panel. An iron plate capable of switching between attraction and non-adsorption is provided on the magnetic pole surface of the second magnet at predetermined intervals in the circumferential direction of the side surface of the counter-drive side control panel, and is in the shape of a disk that can rotate together with the drive-side control panel. The counter-drive side control panel, the conductor coil arranged on the opposite side of the magnet body with the drive-side control panel and the counter-drive side control panel sandwiched between them, and the rotational power for rotating the drive-side control panel. The iron plate provided with the driving side control panel and the iron plate provided with the counter-driving side control panel are provided with a power generator to be generated, and the magnet main body is alternately provided at the same position along the rotation direction of the side surface of the magnet main body. It is characterized by being adsorbed on.

　本発明によれば、効率的に発電可能で且つ発電に必要なトルクを低減させることができる。 According to the present invention, it is possible to efficiently generate power and reduce the torque required for power generation.

本実施形態に係る発電機の全体構成例を示す図である。It is a figure which shows the whole structure example of the generator which concerns on this embodiment. 本実施形態に係る発電機の全体構成例を示す斜視図である。It is a perspective view which shows the whole structure example of the generator which concerns on this embodiment. 本実施形態に係る磁石本体の一例を示す図である。It is a figure which shows an example of the magnet main body which concerns on this embodiment. 本実施形態に係る磁石本体の特性を説明するための図である。It is a figure for demonstrating the characteristic of the magnet body which concerns on this embodiment. 本実施形態に係る駆動側制御盤及び反駆動側制御盤の一例を示す図である。It is a figure which shows an example of the drive side control panel and the counterdrive side control panel which concerns on this embodiment. 本実施形態に係るコギングトルクの発生防止効果を説明するための図である。It is a figure for demonstrating the effect of preventing the occurrence of cogging torque which concerns on this embodiment.

　以下、本発明の実施形態について説明する。 Hereinafter, embodiments of the present invention will be described.

　［発電機の全体構成例］
　図１は、本実施形態に係る発電機の全体構成例を示す図である。図２は、本実施形態に係る発電機の全体構成例を示す斜視図である。図１では、本実施形態に係る発電機１を横方向から見た図を例示している。図２では、説明の便宜上、一部の構成要素を省略して図示している。 [Overall configuration example of generator]
FIG. 1 is a diagram showing an overall configuration example of a generator according to the present embodiment. FIG. 2 is a perspective view showing an overall configuration example of the generator according to the present embodiment. FIG. 1 illustrates a view of the generator 1 according to the present embodiment as viewed from the side. In FIG. 2, for convenience of explanation, some components are omitted.

　図１及び図２に示す発電機１は、磁石本体２、駆動側制御盤３、反駆動側制御盤４、回転軸５、固定軸６、複数の導体コイル７、コイル枠８、補助コイル枠９、動力生成器１０、カップリング１１、補強リング１２、配線１３、蓄電装置１４、土台部１５等を有する。この発電機１は、動力生成器１０の駆動させたときに生じる磁石本体２の磁界変化に伴い、電磁誘導により導体コイル７に流れる誘導電流を利用して交流発電を行う発電機である。 The generator 1 shown in FIGS. 1 and 2 includes a magnet body 2, a drive-side control panel 3, a counter-drive-side control panel 4, a rotary shaft 5, a fixed shaft 6, a plurality of conductor coils 7, a coil frame 8, and an auxiliary coil frame. 9. It has a power generator 10, a coupling 11, a reinforcing ring 12, a wiring 13, a power storage device 14, a base portion 15, and the like. The generator 1 is a generator that generates alternating current by utilizing an induced current flowing through a conductor coil 7 by electromagnetic induction in accordance with a change in the magnetic field of the magnet body 2 that occurs when the power generator 10 is driven.

　磁石本体２は、永久磁石等の磁石からなる磁石本体部分であり、円柱状に構成される。詳細については図３及び図４を用いて後述する。なお、この磁石本体２は固定軸６に連結されて固定されており、不動である。 The magnet body 2 is a magnet body portion made of a magnet such as a permanent magnet, and is formed in a columnar shape. Details will be described later with reference to FIGS. 3 and 4. The magnet body 2 is connected and fixed to the fixed shaft 6 and is immovable.

　駆動側制御盤３は、磁石本体２の片側の側面に隣接して配設される回転可能な円盤状の薄板である。この駆動側制御盤３は回転軸５に連結されて回転軸５の回転に伴い回転し、この駆動側制御盤３と磁石本体２との作用により、磁石本体２の磁極（磁界）変化を作り出す第１の磁極（磁界）変化手段である。 The drive side control panel 3 is a rotatable disk-shaped thin plate arranged adjacent to one side surface of the magnet body 2. The drive-side control panel 3 is connected to the rotary shaft 5 and rotates with the rotation of the rotary shaft 5, and the action of the drive-side control panel 3 and the magnet body 2 creates a change in the magnetic pole (magnetic field) of the magnet body 2. It is the first magnetic pole (magnetic field) changing means.

　反駆動側制御盤４は、磁石本体２の駆動側制御盤３側と逆側の側面に隣接して配設される回転可能な円盤状の薄板である。この反駆動側制御盤４は駆動側制御盤３と連結されて駆動側制御盤３の回転に伴い回転し、この反駆動側制御盤４と磁石本体２との作用により、磁石本体２の磁極（磁界）変化を作り出す第２の磁極（磁界）変化手段である。 The counter-drive side control panel 4 is a rotatable disk-shaped thin plate arranged adjacent to the side surface of the magnet body 2 opposite to the drive-side control panel 3 side. The counter-drive side control panel 4 is connected to the drive-side control panel 3 and rotates with the rotation of the drive-side control panel 3, and due to the action of the counter-drive side control panel 4 and the magnet body 2, the magnetic pole of the magnet body 2 It is a second magnetic pole (magnetic field) changing means that creates a (magnetic field) change.

　このように駆動側制御盤３及び反駆動側制御盤４は、磁石本体２を挟んで対向するよう配設される。なお、円盤状の駆動側制御盤３と反駆動側制御盤４とは、外周縁近傍がボルトナット等により接続される（図５参照）。これら駆動側制御盤３及び反駆動側制御盤４が磁石本体２の両面側で同時に回転することによって、磁石本体２の磁界変化を作り出す。詳細については図５等を用いて後述する。 In this way, the drive side control panel 3 and the counter drive side control panel 4 are arranged so as to face each other with the magnet body 2 interposed therebetween. The disk-shaped drive-side control panel 3 and the counter-drive-side control panel 4 are connected to each other by bolts and nuts or the like in the vicinity of the outer peripheral edge (see FIG. 5). The drive-side control panel 3 and the counter-drive-side control panel 4 rotate simultaneously on both sides of the magnet body 2, thereby creating a change in the magnetic field of the magnet body 2. Details will be described later with reference to FIG. 5 and the like.

　回転軸５は、駆動側制御盤３を回転させる例えばＳ３５～４５Ｃ等の機械構造用炭素鋼やステンレスで形成された棒状体である。この回転軸５の一端は駆動側制御盤３に連結されており、他端はカップリング１１を介して動力生成器１０に連結されている。この回転軸５は、軸振れ防止機能を有する不図示のダブルベアリング等を介して駆動側制御盤３側のコイル枠８及び補助コイル枠９を軸通する。 The rotating shaft 5 is a rod-shaped body made of carbon steel or stainless steel for mechanical structure such as S35 to 45C that rotates the drive side control panel 3. One end of the rotating shaft 5 is connected to the drive side control panel 3, and the other end is connected to the power generator 10 via the coupling 11. The rotating shaft 5 axially passes through the coil frame 8 and the auxiliary coil frame 9 on the drive side control panel 3 side via a double bearing (not shown) having a shaft runout prevention function.

　固定軸６は、例えばＳ３５～４５Ｃ等の機械構造用炭素鋼やステンレスで形成された棒状体であり、一端が磁石本体２に連結される。この固定軸６は、不図示のナット・ワッシャー等により反駆動側制御盤４側のコイル枠８及び補助コイル枠９を連通・固定される。なお、固定軸６の一端側にはベアリング６ａが配設され、ベアリング６ａの外輪が反駆動側制御盤４に取り付けられる。これにより、ベアリング６ａは反駆動側制御盤４とともに回転する。 The fixed shaft 6 is a rod-shaped body made of carbon steel for mechanical structure such as S35 to 45C or stainless steel, and one end thereof is connected to the magnet body 2. The fixed shaft 6 communicates and is fixed to the coil frame 8 and the auxiliary coil frame 9 on the counter-drive side control panel 4 side by a nut, washer or the like (not shown). A bearing 6a is arranged on one end side of the fixed shaft 6, and the outer ring of the bearing 6a is attached to the counter-drive side control panel 4. As a result, the bearing 6a rotates together with the counter-driving side control panel 4.

　導体コイル７は、駆動側制御盤３よりも図１では右側及び反駆動側制御盤４よりも図１では左側においてそれぞれ設けられ、回転軸５や固定軸６の軸方向に平行に延びる不図示の鉄心周りに、例えば直径０．２ｍｍ、長さ１００ｍのエナメル線等が螺旋状に巻回されて作製された横長のコイルである。 The conductor coil 7 is provided on the right side of the drive side control panel 3 in FIG. 1 and on the left side of the counter drive side control panel 4 in FIG. 1, and is not shown. This is a horizontally long coil produced by spirally winding an enamel wire having a diameter of 0.2 mm and a length of 100 m around the iron core of the above.

　複数の導体コイル７の各々の断面形状は、図２に示すように、コイル枠８や補助コイル枠９の切り抜かれた領域に応じた形状となるよう構成される。本実施形態では、コイル枠８や補助コイル枠９の切り抜かれた領域の個数である２４個の導体コイル７が、駆動側制御盤３を挟んで磁石本体２と逆側、反駆動側制御盤４を挟んで磁石本体２と逆側にそれぞれ配設される。 As shown in FIG. 2, the cross-sectional shape of each of the plurality of conductor coils 7 is configured to correspond to the cut-out region of the coil frame 8 and the auxiliary coil frame 9. In the present embodiment, 24 conductor coils 7, which are the number of cut-out regions of the coil frame 8 and the auxiliary coil frame 9, are opposite to the magnet body 2 with the drive side control panel 3 sandwiched between them, and the counter drive side control panel. The magnet body 2 is arranged on the opposite side of the magnet body 2 with the 4 in between.

　また、複数の導体コイル７の各々には、電気配線である配線１３等が接続されており、配線１３を介して電気を蓄電する蓄電装置１４に接続される。 Further, each of the plurality of conductor coils 7 is connected to a wiring 13 or the like which is an electric wiring, and is connected to a power storage device 14 for storing electricity via the wiring 13.

　コイル枠８は、複数の導体コイル７の各々を支持するために磁石本体２の両側面から所定距離離間して土台部１５に立設され、例えばアルミニウム板等の非磁性体板により形成された側面正方形状の枠体である。 The coil frame 8 is erected on the base portion 15 at a predetermined distance from both side surfaces of the magnet body 2 in order to support each of the plurality of conductor coils 7, and is formed of, for example, a non-magnetic material plate such as an aluminum plate. It is a frame with square sides.

　このコイル枠８には、複数の導体コイル７が連通するための外側連通穴８ａ、内側連通穴８ｂが形成されている。外側連通穴８ａ及び内側連通穴８ｂの形状や個数については、図５の説明の際に併せて説明する。 The coil frame 8 is formed with an outer communication hole 8a and an inner communication hole 8b for communicating a plurality of conductor coils 7. The shapes and numbers of the outer communication holes 8a and the inner communication holes 8b will be described together with the description of FIG.

　補助コイル枠９は、コイル枠８による複数の導体コイル７の各々の支持を補助するためにコイル枠８から所定距離離間して土台部１５に立設され、例えばアルミニウム板等の非磁性体板により形成された側面正方形状の枠体である。 The auxiliary coil frame 9 is erected on the base portion 15 at a predetermined distance from the coil frame 8 in order to assist the support of each of the plurality of conductor coils 7 by the coil frame 8, and is a non-magnetic material plate such as an aluminum plate. It is a frame body having a square side surface formed by.

　この補助コイル枠９には、複数の導体コイル７が連通するための外側連通穴９ａ、内側連通穴９ｂが形成されている。外側連通穴９ａ及び内側連通穴９ｂの形状や個数については、図５の説明の際に併せて説明する。 The auxiliary coil frame 9 is formed with an outer communication hole 9a and an inner communication hole 9b for communicating a plurality of conductor coils 7. The shapes and numbers of the outer communication holes 9a and the inner communication holes 9b will be described together with the description of FIG.

　動力生成器１０は、使用者がハンドル１０ａを回転させて内部の増速歯車（不図示）により増速させる手廻し増速器である。この動力生成器１０の出力軸（不図示）はカップリング１１に接続される。すなわち、動力生成器１０は、カップリング１１を介して駆動側制御盤３を回転させる回転軸５の回転動力を生成する。 The power generator 10 is a hand-cranked speed increaser in which the user rotates the handle 10a to accelerate the speed by an internal speed increasing gear (not shown). The output shaft (not shown) of the power generator 10 is connected to the coupling 11. That is, the power generator 10 generates the rotational power of the rotary shaft 5 that rotates the drive side control panel 3 via the coupling 11.

　カップリング１１は、回転軸５と動力生成器１０の出力軸とを接続することによって、動力生成器１０の出力を回転軸５の回転動力とする動力伝達部品である。 The coupling 11 is a power transmission component that uses the output of the power generator 10 as the rotational power of the rotary shaft 5 by connecting the rotary shaft 5 and the output shaft of the power generator 10.

　このカップリング１１は、例えばラチェット型カップリングが好ましい。なぜならば、動力生成器１０の出力軸の回転が一時的に中断しても、回転軸５を空転させて発電状態を維持することができるからである。すなわち、手廻し増速器である動力生成器１０のハンドル１０ａを最高回転速度近辺まで回転させて使用者が手を離した場合であっても、動力生成器１０が惰性で回転することによる惰性力を利用して、回転軸５を空転させて発電状態を維持することができる。 The coupling 11 is preferably a ratchet type coupling, for example. This is because even if the rotation of the output shaft of the power generator 10 is temporarily interrupted, the rotating shaft 5 can be idled to maintain the power generation state. That is, even when the handle 10a of the power generator 10 which is a hand-cranked speed increaser is rotated to near the maximum rotation speed and the user releases the hand, the inertial force due to the power generator 10 rotating by inertia. Can be used to idle the rotating shaft 5 to maintain the power generation state.

　補強リング１２は、磁石本体２の外周周りに磁石本体２と少しの間隙を挟んで設けられるリング状の例えば集成材等の木質材料である。この補強リング１２は、駆動側制御盤３や反駆動側制御盤４の歪みを防止するために設けられる。すなわち、駆動側制御盤３や反駆動側制御盤４と磁石本体２との間に常に働いている磁力によってこれら制御盤が強度不足により歪んでしまう状況や、磁石本体２との隙間調整ができない状況を防ぐために設けられる。 The reinforcing ring 12 is a ring-shaped wood-based material such as laminated wood provided around the outer circumference of the magnet body 2 with a slight gap between the magnet body 2 and the magnet body 2. The reinforcing ring 12 is provided to prevent distortion of the drive side control panel 3 and the counter drive side control panel 4. That is, the situation where these control panels are distorted due to insufficient strength due to the magnetic force constantly acting between the drive side control panel 3 or the counter-drive side control panel 4 and the magnet body 2, and the gap between the magnet body 2 cannot be adjusted. It is provided to prevent the situation.

　配線１３は、電気配線である。蓄電装置１４は、発電機１によって発電された電気を蓄電する装置である。 Wiring 13 is electrical wiring. The power storage device 14 is a device that stores electricity generated by the generator 1.

　土台部１５は、平面略長方形状の板状体であり、この土台部１５上にコイル枠８や補助コイル枠９、動力生成器１０が立設される。 The base portion 15 is a plate-like body having a substantially rectangular plane, and a coil frame 8, an auxiliary coil frame 9, and a power generator 10 are erected on the base portion 15.

　以上に示す構成により、本実施形態に係る発電機１では、駆動側制御盤３及び反駆動側制御盤４が動力生成器１０の操作により回転し、当該回転に伴い駆動側制御盤３及び反駆動側制御盤４と磁石本体２との作用により、磁石本体２の磁極変化が起こる。そうすると、各導体コイル７に誘導電流が発生し、この誘導電流を利用して交流発電を行うものである。 With the configuration shown above, in the generator 1 according to the present embodiment, the drive side control panel 3 and the counter drive side control panel 4 are rotated by the operation of the power generator 10, and the drive side control panel 3 and the counter drive side control panel 3 and the counter drive side control panel 4 are rotated by the operation of the power generator 10. The magnetic pole change of the magnet body 2 occurs due to the action of the drive side control panel 4 and the magnet body 2. Then, an induced current is generated in each conductor coil 7, and the induced current is used to generate alternating current.

　［磁石本体の一例］
　図３は、本実施形態に係る磁石本体の一例を示す図である。 [Example of magnet body]
FIG. 3 is a diagram showing an example of a magnet main body according to the present embodiment.

　図３に示すように、磁石本体２は、外側の中空円柱状の磁石（第１の磁石）２１、内側の中空円柱状の磁石（第２の磁石）２２とから構成される。これら磁石２１、２２は、表面積、厚さ及び磁束密度が同一及び均一に構成され、形状のみが異なる。なお、磁石２１、２２のそれぞれの外径及び内径の寸法は、両者の表面積が同一になるよう設定される。特に磁石２２の半径は、磁石２１の中空部半径と略同一長に構成される。 As shown in FIG. 3, the magnet body 2 is composed of an outer hollow columnar magnet (first magnet) 21 and an inner hollow columnar magnet (second magnet) 22. These magnets 21 and 22 are configured to have the same surface area, thickness, and magnetic flux density, and differ only in shape. The outer diameter and inner diameter of the magnets 21 and 22 are set so that the surface areas of the magnets 21 and 22 are the same. In particular, the radius of the magnet 22 is configured to have substantially the same length as the radius of the hollow portion of the magnet 21.

　本実施形態では、磁石本体２を構成する磁石２１、２２として例えば湿式異方性フェライト磁石を用いる。この磁石２１、２２の磁束密度は約１０７ｍＴであり、厚さは１０ｍｍである。 In this embodiment, for example, a wet anisotropic ferrite magnet is used as the magnets 21 and 22 constituting the magnet body 2. The magnetic flux densities of the magnets 21 and 22 are about 107 mT, and the thickness is 10 mm.

　このような磁石本体２は、磁石２１の内側に磁石２２を挿入して接着剤等で固着させることで作製される。なお、磁石２１と磁石２２とは、Ｎ極及びＳ極の磁極の向きを互いに逆にした状態で、磁石２１の磁極面と磁石２２の磁極面が同一面を構成するよう固着される。例えば図３に示すように、磁石２１は上方がＳ極、下方がＮ極であり、磁石２２は上方がＮ極、下方がＳ極である。また、挿入に際しては必要に応じて治具を利用して行う。このような磁石本体２は、図４を用いて後述する特性を有する。 Such a magnet body 2 is manufactured by inserting a magnet 22 inside the magnet 21 and fixing it with an adhesive or the like. The magnet 21 and the magnet 22 are fixed so that the magnetic pole surface of the magnet 21 and the magnetic pole surface of the magnet 22 form the same surface in a state where the directions of the magnetic poles of the N pole and the S pole are opposite to each other. For example, as shown in FIG. 3, the magnet 21 has an S pole on the upper side and an N pole on the lower side, and the magnet 22 has an N pole on the upper side and an S pole on the lower side. In addition, when inserting, a jig is used as necessary. Such a magnet body 2 has the characteristics described later with reference to FIG.

　［本実施形態に係る磁石本体の特性］
　図４は、本実施形態に係る磁石本体の特性を説明するための図である。 [Characteristics of magnet body according to this embodiment]
FIG. 4 is a diagram for explaining the characteristics of the magnet body according to the present embodiment.

　図４（ａ）では、互いに近接して配置された永久磁石Ｍ１、Ｍ２（以下、単に「磁石Ｍ１、Ｍ２」ともいう。）を例示して説明する。磁石Ｍ１、Ｍ２は、表面積、厚さ及び磁束密度が同一及び均一に構成され、Ｎ極及びＳ極の向きが互いに逆にした状態で配置されている。 In FIG. 4A, permanent magnets M1 and M2 (hereinafter, also simply referred to as “magnets M1 and M2”) arranged close to each other will be illustrated and described. The magnets M1 and M2 are configured to have the same surface area, thickness, and magnetic flux density, and are arranged in a state in which the directions of the north pole and the south pole are opposite to each other.

　この状態で、図４（ｂ）に示すように、磁石Ｍ１、Ｍ２の片面に両者の片面が隠れる程度の広さの鉄板Ｓを吸着させる。そうすると、永久磁石Ｍ１、Ｍ２の鉄板Ｓに吸着される側の磁極が消滅する一方、鉄板Ｓに吸着されない側の磁極の磁力がそれぞれ△（デルタ）Ｎ、△（デルタ）Ｓだけ大きくなり約１．１～１．２倍になることが分かった。鉄板Ｓを取り外すと、図４（ａ）に示す元の状態に戻る。 In this state, as shown in FIG. 4B, an iron plate S having a width sufficient to hide one side of both magnets M1 and M2 is attracted to one side. Then, while the magnetic poles on the side of the permanent magnets M1 and M2 that are attracted to the iron plate S disappear, the magnetic poles of the magnetic poles on the side that are not attracted to the iron plate S increase by Δ (delta) N and Δ (delta) S, respectively, and are about 1. It was found to be 1 to 1.2 times higher. When the iron plate S is removed, it returns to the original state shown in FIG. 4 (a).

　本実施形態においては、このように鉄板Ｓの吸着・非吸着に応じて磁石Ｍ１、Ｍ２の鉄板Ｓに吸着されない側の磁極の磁力が増減する特性を、磁石の極変化とも称する。また、磁石の極変化をもたらす鉄板Ｓを、シール鉄板とも称する。図４の磁石Ｍ１、Ｍ２は、それぞれ図３に示す磁石本体２を構成する磁石２１、２２に対応する。ここでいう鉄板Ｓの吸着とは、鉄板Ｓと磁石Ｍ１、Ｍ２との間で例えば１ｍｍ程度の最小限度の僅かな隙間を有する場合を含むものとする。 In the present embodiment, the characteristic that the magnetic force of the magnetic pole on the side of the magnets M1 and M2 that is not attracted to the iron plate S increases or decreases according to the adsorption / non-adsorption of the iron plate S is also referred to as a polar change of the magnet. Further, the iron plate S that causes a polar change of the magnet is also referred to as a seal iron plate. The magnets M1 and M2 in FIG. 4 correspond to the magnets 21 and 22 constituting the magnet body 2 shown in FIG. 3, respectively. The adsorption of the iron plate S referred to here includes the case where there is a minimum minimum gap of, for example, about 1 mm between the iron plate S and the magnets M1 and M2.

　なお、図４（ａ）に示す状態から図４（ｂ）に示す状態に移行する場合、永久磁石Ｍ１、Ｍ２の磁力線は、磁力線Ｌ１から磁力線Ｌ２に変化する。そこで、図４（ｃ）に示すように、鉄板Ｓを挟んで磁石Ｍ１、Ｍ２と逆側に導体コイルＣを配置させた場合、鉄板Ｓを出し入れすると導体コイルＣを貫く磁界は変化し、電磁誘導により導体コイルＣに誘導電流が流れる。 When shifting from the state shown in FIG. 4A to the state shown in FIG. 4B, the magnetic field lines of the permanent magnets M1 and M2 change from the magnetic field lines L1 to the magnetic field lines L2. Therefore, as shown in FIG. 4C, when the conductor coil C is arranged on the opposite side of the magnets M1 and M2 with the iron plate S sandwiched between them, the magnetic field penetrating the conductor coil C changes when the iron plate S is taken in and out, resulting in electromagnetic induction. An induced current flows through the conductor coil C due to the induction.

　すなわち、図３に示す磁石本体２は、当該磁石本体２の上面又は下面に所定の鉄板を着脱させることで、鉄板を挟んで磁石本体２と逆側に配置させた導体コイルに誘導電流を流すことができるという特性を有するものである。 That is, in the magnet main body 2 shown in FIG. 3, an induced current is passed through a conductor coil arranged on the opposite side of the magnet main body 2 with the iron plate sandwiched by attaching and detaching a predetermined iron plate to the upper surface or the lower surface of the magnet main body 2. It has the property of being able to.

　図４に示す例では、鉄板Ｓは例えば厚さ１ｍｍのＳＳ４００（一般構造用圧延鋼材）等のＳＳ材である。磁石Ｍ１、Ｍ２は、例えば磁束密度１００ｍＴ、直径２０ｍｍ、厚さ５ｍｍのフェライト磁石である。磁石Ｍ１、Ｍ２が磁束密度の高いネオジウム磁石等の場合には、鉄板Ｓの厚さは磁石Ｍ１、Ｍ２の厚さの３０％程度の厚さであることが好ましい。すなわち、鉄板Ｓの厚さは磁石Ｍ１、Ｍ２の磁束密度の大きさに応じて変更させることが好ましい。 In the example shown in FIG. 4, the iron plate S is, for example, an SS material such as SS400 (rolled steel material for general structure) having a thickness of 1 mm. The magnets M1 and M2 are, for example, ferrite magnets having a magnetic flux density of 100 mT, a diameter of 20 mm, and a thickness of 5 mm. When the magnets M1 and M2 are neodymium magnets having a high magnetic flux density, the thickness of the iron plate S is preferably about 30% of the thickness of the magnets M1 and M2. That is, it is preferable that the thickness of the iron plate S is changed according to the magnitude of the magnetic flux densities of the magnets M1 and M2.

　［駆動側制御盤及び反駆動側制御盤の一例］
　図５は、本実施形態に係る駆動側制御盤及び反駆動側制御盤の一例を示す図である。図５では、説明の便宜上、磁石本体２と駆動側制御盤３と反駆動側制御盤４とを離間させて図示している。 [Example of drive side control panel and counter drive side control panel]
FIG. 5 is a diagram showing an example of a drive side control panel and a counter drive side control panel according to the present embodiment. In FIG. 5, for convenience of explanation, the magnet body 2, the driving side control panel 3, and the counter-driving side control panel 4 are shown separately from each other.

　図５に示す駆動側制御盤３は、本体３１、複数のシール鉄板３２、複数の内側補助鉄心３３ａ、複数の外側補助鉄心３３ｂ（以下、内側補助鉄心３３ａ及び外側補助鉄心３３ｂを総称する場合、単に「補助鉄心３３」ともいう。）を有する。図５では、それぞれ６個のシール鉄板３２、内側補助鉄心３３ａ及び外側補助鉄心３３ｂを示しているが、６個に限定されるものではない。 The drive side control panel 3 shown in FIG. 5 includes a main body 31, a plurality of seal iron plates 32, a plurality of inner auxiliary iron cores 33a, and a plurality of outer auxiliary iron cores 33b (hereinafter, when the inner auxiliary iron core 33a and the outer auxiliary iron core 33b are collectively referred to). It also has a simple "auxiliary iron core 33"). In FIG. 5, six seal iron plates 32, an inner auxiliary iron core 33a, and an outer auxiliary iron core 33b are shown, respectively, but the number is not limited to six.

　本体３１は、円盤状の薄板、例えば板厚２．０ｍｍのアルミニウム板等の非磁性体板である。この本体３１の外径は、磁石本体２（磁石２１）の外径と略同一である。この本体３１の側面では、後述するシール鉄板３２、内側補助鉄心３３ａ及び外側補助鉄心３３ｂが嵌め込まれる領域が板幅方向に切り抜かれている。 The main body 31 is a disk-shaped thin plate, for example, a non-magnetic plate such as an aluminum plate having a plate thickness of 2.0 mm. The outer diameter of the main body 31 is substantially the same as the outer diameter of the magnet main body 2 (magnet 21). On the side surface of the main body 31, a region in which the seal iron plate 32, the inner auxiliary iron core 33a, and the outer auxiliary iron core 33b, which will be described later, are fitted is cut out in the plate width direction.

　シール鉄板３２は、本体３１の側面中心近傍から外周近傍までの径長の環状扇形の例えば板厚２．３ｍｍの鋼板である。このシール鉄板３２は、本体３１の側面円周方向に所定間隔（図５では６０°）毎に本体３１の切り抜かれた領域に嵌込され、接着剤等で固着される。 The seal iron plate 32 is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, from the vicinity of the center of the side surface to the vicinity of the outer circumference of the main body 31. The seal iron plate 32 is fitted into the cut-out region of the main body 31 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 31 and fixed with an adhesive or the like.

　内側補助鉄心３３ａは、本体３１の側面中心近傍から径長Ｌ１以下の径長の環状扇形の例えば板厚２．３ｍｍの鋼板である。この内側補助鉄心３３ａは、本体３１の側面円周方向に所定間隔（図５では６０°）毎に本体３１の切り抜かれた領域に嵌込され、接着剤等で固着される。なお、径長Ｌ１とは、磁石２２の外径Ｌよりも短い長さである。 The inner auxiliary iron core 33a is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, having a diameter of L1 or less from the vicinity of the center of the side surface of the main body 31. The inner auxiliary iron core 33a is fitted into the cut-out region of the main body 31 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 31 and fixed with an adhesive or the like. The diameter length L1 is shorter than the outer diameter L of the magnet 22.

　外側補助鉄心３３ｂは、本体３１の径長Ｌ２から外周近傍までの径長の環状扇形の例えば板厚２．３ｍｍの鋼板である。この外側補助鉄心３３ｂは、本体３１の側面円周方向に所定間隔（図５では６０°）毎に本体３１の切り抜かれた領域に嵌込され、接着剤等で固着される。なお、径長Ｌ２とは、磁石２２の外径Ｌよりも長い長さである。 The outer auxiliary iron core 33b is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, from the diameter L2 of the main body 31 to the vicinity of the outer circumference. The outer auxiliary iron core 33b is fitted into the cut-out region of the main body 31 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 31 and fixed with an adhesive or the like. The diameter length L2 is a length longer than the outer diameter L of the magnet 22.

　以上説明してきたように、駆動側制御盤３は、本体３１、複数のシール鉄板３２、複数の内側補助鉄心３３ａ、複数の外側補助鉄心３３ｂを有する。なお、シール鉄板３２と、内側補助鉄心３３ａ及び外側補助鉄心３３ｂの組合せとは、本体３１の側面円周方向に交互に配置される。そして、各々のシール鉄板３２と各々の内側補助鉄心３３ａ及び外側補助鉄心３３ｂとは、中心角が同一に構成される。 As described above, the drive side control panel 3 has a main body 31, a plurality of seal iron plates 32, a plurality of inner auxiliary iron cores 33a, and a plurality of outer auxiliary iron cores 33b. The seal iron plate 32 and the combination of the inner auxiliary iron core 33a and the outer auxiliary iron core 33b are alternately arranged in the lateral circumferential direction of the main body 31. The central angles of the respective seal iron plates 32 and the inner auxiliary iron cores 33a and outer auxiliary iron cores 33b are the same.

　これにより、駆動側制御盤３が回転した場合には、シール鉄板３２と補助鉄心３３とが交互に磁石本体２の磁極面に吸着されることとなる。シール鉄板３２は、図４を用いて前述したとおり、当該シール鉄板３２の吸着・非吸着に応じて磁石本体２の磁極の変化を引き起こすものである。一方、補助鉄心３３は、当該補助鉄心３３が磁石２１、磁石２２にそれぞれ吸着されることで磁石本体２の磁束を大きくするためのものである。なお、前述の通り、ここでいう吸着とは、シール鉄板３２（又は補助鉄心３３）と磁石２１、２２との間で例えば１ｍｍ程度の最小限度の僅かな隙間を有する場合を含むものとする。 As a result, when the drive side control panel 3 rotates, the seal iron plate 32 and the auxiliary iron core 33 are alternately attracted to the magnetic pole surface of the magnet body 2. As described above with reference to FIG. 4, the seal iron plate 32 causes a change in the magnetic poles of the magnet body 2 according to the adsorption / non-adsorption of the seal iron plate 32. On the other hand, the auxiliary core 33 is for increasing the magnetic flux of the magnet body 2 by attracting the auxiliary core 33 to the magnet 21 and the magnet 22, respectively. As described above, the suction referred to here includes the case where there is a minimum minimum gap of, for example, about 1 mm between the seal iron plate 32 (or the auxiliary iron core 33) and the magnets 21 and 22.

　すなわち、一つのシール鉄板３２と隣の補助鉄心３３との組で磁石本体２の磁束を制御している。また、駆動側制御盤３が備えるこの組数によって周波数が決定される。例えば周波数６０Ｈｚ、回転速度１０回／秒の場合には、組数は６となる。 That is, the magnetic flux of the magnet body 2 is controlled by a pair of one seal iron plate 32 and the adjacent auxiliary iron core 33. Further, the frequency is determined by the number of sets included in the drive side control panel 3. For example, when the frequency is 60 Hz and the rotation speed is 10 times / sec, the number of sets is 6.

　同様に、図５に示す反駆動側制御盤４は、本体４１、複数のシール鉄板４２、複数の内側補助鉄心４３ａ、複数の外側補助鉄心４３ｂ（以下、内側補助鉄心４３ａ及び外側補助鉄心４３ｂを総称する場合、単に「補助鉄心４３」ともいう。）を有する。図５では、それぞれ６個のシール鉄板４２、内側補助鉄心４３ａ及び外側補助鉄心４３ｂを示しているが、６個に限定されるものではない。 Similarly, the counter-driving side control panel 4 shown in FIG. 5 includes a main body 41, a plurality of seal iron plates 42, a plurality of inner auxiliary cores 43a, and a plurality of outer auxiliary cores 43b (hereinafter, inner auxiliary cores 43a and outer auxiliary cores 43b). Collectively, it also has a simple "auxiliary iron core 43"). In FIG. 5, six seal iron plates 42, an inner auxiliary iron core 43a, and an outer auxiliary iron core 43b are shown, respectively, but the number is not limited to six.

　本体４１は、円盤状の薄板、例えば板厚２．０ｍｍのアルミニウム板等の非磁性体板である。この本体４１の外径は、磁石本体２（磁石２１）の外径と略同一である。この本体４１の側面では、後述するシール鉄板４２、内側補助鉄心４３ａ及び外側補助鉄心４３ｂが嵌め込まれる領域が板幅方向に切り抜かれている。 The main body 41 is a disk-shaped thin plate, for example, a non-magnetic plate such as an aluminum plate having a plate thickness of 2.0 mm. The outer diameter of the main body 41 is substantially the same as the outer diameter of the magnet main body 2 (magnet 21). On the side surface of the main body 41, a region in which the seal iron plate 42, the inner auxiliary iron core 43a, and the outer auxiliary iron core 43b, which will be described later, are fitted is cut out in the plate width direction.

　シール鉄板４２は、本体４１の側面中心近傍から外周近傍までの径長の環状扇形の例えば板厚２．３ｍｍの鋼板である。このシール鉄板４２は、本体４１の側面円周方向に所定間隔（図５では６０°）毎に本体４１の切り抜かれた領域に嵌込され、接着剤等で固着される。 The seal iron plate 42 is an annular fan-shaped steel plate having a diameter from the vicinity of the center of the side surface to the vicinity of the outer circumference of the main body 41, for example, a plate thickness of 2.3 mm. The seal iron plate 42 is fitted into the cut-out region of the main body 41 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 41, and is fixed with an adhesive or the like.

　内側補助鉄心４３ａは、本体４１の側面中心近傍から径長Ｌ１以下の径長の環状扇形の例えば板厚２．３ｍｍの鋼板である。この内側補助鉄心４３ａは、本体４１の側面円周方向に所定間隔（図５では６０°）毎に本体４１の切り抜かれた領域に嵌込され、接着剤等で固着される。 The inner auxiliary iron core 43a is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, having a diameter of L1 or less from the vicinity of the center of the side surface of the main body 41. The inner auxiliary iron core 43a is fitted into the cut-out region of the main body 41 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 41, and is fixed with an adhesive or the like.

　外側補助鉄心４３ｂは、本体４１の径長Ｌ２から外周近傍までの径長の環状扇形の例えば板厚２．３ｍｍの鋼板である。この外側補助鉄心４３ｂは、本体４１の側面円周方向に所定間隔（図５では６０°）毎に本体４１の切り抜かれた領域に嵌込され、接着剤等で固着される。 The outer auxiliary iron core 43b is an annular fan-shaped steel plate having a diameter of 2.3 mm, for example, from the diameter L2 of the main body 41 to the vicinity of the outer circumference. The outer auxiliary iron core 43b is fitted into the cut-out region of the main body 41 at predetermined intervals (60 ° in FIG. 5) in the circumferential direction of the side surface of the main body 41, and is fixed with an adhesive or the like.

　以上説明してきたように、反駆動側制御盤４は、本体４１、複数のシール鉄板４２、複数の内側補助鉄心４３ａ、複数の外側補助鉄心４３ｂを有する。なお、シール鉄板４２と、内側補助鉄心４３ａ及び外側補助鉄心４３ｂの組合せとは、本体４１の側面円周方向に交互に配置される。そして、各々のシール鉄板４２と各々の内側補助鉄心４３ａ及び外側補助鉄心４３ｂとは、中心角が同一に構成される。 As described above, the counter-drive side control panel 4 has a main body 41, a plurality of seal iron plates 42, a plurality of inner auxiliary iron cores 43a, and a plurality of outer auxiliary iron cores 43b. The seal iron plate 42 and the combination of the inner auxiliary iron core 43a and the outer auxiliary iron core 43b are alternately arranged in the lateral circumferential direction of the main body 41. The central angles of the respective seal iron plates 42 and the inner auxiliary iron cores 43a and outer auxiliary iron cores 43b are the same.

　これにより、反駆動側制御盤４が回転した場合には、シール鉄板４２と補助鉄心４３とが交互に磁石本体２の磁極面に吸着されることとなる。シール鉄板４２は、図４を用いて前述したとおり、当該シール鉄板４２の吸着・非吸着に応じて磁石本体２の磁極の変化を引き起こすものである。一方、補助鉄心４３は、当該補助鉄心４３が磁石２１、磁石２２にそれぞれ吸着されることで磁石本体２の磁束を大きくするためのものである。 As a result, when the counter-drive side control panel 4 rotates, the seal iron plate 42 and the auxiliary iron core 43 are alternately attracted to the magnetic pole surface of the magnet body 2. As described above with reference to FIG. 4, the seal iron plate 42 causes a change in the magnetic poles of the magnet body 2 according to the adsorption / non-adsorption of the seal iron plate 42. On the other hand, the auxiliary iron core 43 is for increasing the magnetic flux of the magnet body 2 by attracting the auxiliary iron core 43 to the magnet 21 and the magnet 22, respectively.

　このような駆動側制御盤３と反駆動側制御盤４は、それぞれの制御盤の外周縁近傍に円周方向に所定間隔毎に設けられた複数のボルト孔３４、ボルト孔４４の間が不図示のボルト等により接続される。これにより、これら駆動側制御盤３及び反駆動側制御盤４が磁石本体２の磁力により磁石本体２に吸着しようとしても、磁石本体２と各制御盤３、４との間に例えば１ｍｍ程度の隙間を設けることができる。 In such a drive side control panel 3 and a counter drive side control panel 4, there is no space between a plurality of bolt holes 34 and bolt holes 44 provided at predetermined intervals in the circumferential direction in the vicinity of the outer peripheral edge of each control panel. It is connected by the bolts shown in the figure. As a result, even if the drive-side control panel 3 and the counter-drive-side control panel 4 try to be attracted to the magnet body 2 by the magnetic force of the magnet body 2, the distance between the magnet body 2 and the control panels 3 and 4 is, for example, about 1 mm. A gap can be provided.

　なお、これら駆動側制御盤３と反駆動側制御盤４とをボルト等で接続するときは、シール鉄板３２、４２（補助鉄心３３、４３）の位置を互いに角度をずらして接続する。具体的には、磁石本体２の側面の回転方向に沿った同一位置においてシール鉄板３２、４２が交互に吸着されるよう、環状扇形であるシール鉄板３２、４２の中心角（本実施形態では３０°）だけずらして接続する。 When connecting the drive side control panel 3 and the counter drive side control panel 4 with bolts or the like, the positions of the seal iron plates 32 and 42 (auxiliary iron cores 33 and 43) are connected at different angles. Specifically, the central angle of the annular fan-shaped seal iron plates 32 and 42 (30 in the present embodiment) so that the seal iron plates 32 and 42 are alternately attracted at the same position along the rotation direction of the side surface of the magnet body 2. °) and connect by shifting.

　なお、図１や図２で示したコイル枠８の外側連通穴８ａ、内側連通穴８ｂの形状及び個数は、駆動側制御盤３（又は反駆動制御盤４）においてすべてのシール鉄板３２（又はシール鉄板４２）を補助鉄心３３（又は補助鉄心４３）に置き換えた場合の外側補助鉄心３３ａ、内側補助鉄心３３ｂ（又は外側補助鉄心４３ａ、内側補助鉄心４３ｂ）の形状及び個数と同一である。補助コイル枠９の外側連通穴９ａ、内側連通穴９ｂの形状及び個数についても同様である。 The shapes and numbers of the outer communication holes 8a and the inner communication holes 8b of the coil frame 8 shown in FIGS. 1 and 2 are all sealed iron plates 32 (or counter-drive control panels 4) in the drive side control panel 3 (or anti-drive control panel 4). The shape and number of the outer auxiliary core 33a and the inner auxiliary core 33b (or the outer auxiliary core 43a and the inner auxiliary core 43b) when the seal iron plate 42) is replaced with the auxiliary core 33 (or the auxiliary core 43) are the same. The same applies to the shape and number of the outer communication holes 9a and the inner communication holes 9b of the auxiliary coil frame 9.

　［コギングトルクの防止効果］
　図６は、本実施形態に係るコギングトルクの発生防止効果を説明するための図である。 [Cogging torque prevention effect]
FIG. 6 is a diagram for explaining the effect of preventing the generation of cogging torque according to the present embodiment.

　ところで、図５で示すように駆動側制御盤３及び反駆動側制御盤４に補助鉄心３３、４３を取り付けた場合には、導体コイル７（図１参照）と補助鉄心３３、４３との間にコギングトルクが発生し得る。このようなコギングトルクの発生を防止するために、本実施形態によれば、補助鉄心３３、４３と導体コイル７（厳密には、コイル鉄心）の回転方向側の幅寸法を、常時、吸着面積が変化しないような幅の寸法にする。 By the way, when the auxiliary iron cores 33 and 43 are attached to the drive side control panel 3 and the counter drive side control panel 4 as shown in FIG. 5, between the conductor coil 7 (see FIG. 1) and the auxiliary iron cores 33 and 43. Cogging torque can be generated. In order to prevent the generation of such cogging torque, according to the present embodiment, the width dimension of the auxiliary iron cores 33 and 43 and the conductor coil 7 (strictly speaking, the coil iron core) on the rotation direction side is always set to the suction area. Make the width dimension so that does not change.

　図６では、補助鉄心３３を径方向から見た図を示しており、図中の矢印は駆動側制御盤３の回転方向を示している。図６に示すように、補助鉄心３３の後端が所定のコイル鉄心７Ａから離れ始める位置に到達したときに、補助鉄心３３の先端は隣り合うコイル鉄心７Ｂの吸着を開始する位置に到達するようにすることで、補助鉄心３３の吸着面積を常に変えないようにする。つまり、隣り合う導体コイル７（コイル鉄心）の幅が補助鉄心３３の幅になるように設定されることで、コギングトルクの発生を防止することができる。 FIG. 6 shows a view of the auxiliary iron core 33 viewed from the radial direction, and the arrows in the figure indicate the rotation direction of the drive side control panel 3. As shown in FIG. 6, when the rear end of the auxiliary core 33 reaches the position where it starts to separate from the predetermined coil core 7A, the tip of the auxiliary core 33 reaches the position where the adsorption of the adjacent coil cores 7B starts. By setting the setting, the suction area of the auxiliary iron core 33 is not always changed. That is, by setting the width of the adjacent conductor coils 7 (coil cores) to be the width of the auxiliary core 33, it is possible to prevent the generation of cogging torque.

　［磁力線の漏れ防止効果］
　また前述の通り、駆動側制御盤３において、各々のシール鉄板３２と各々の内側補助鉄心３３ａ及び外側補助鉄心３３ｂとは、中心角が同一に構成される。同様に、反駆動側制御盤４において、各々のシール鉄板４２と各々の内側補助鉄心４３ａ及び外側補助鉄心４３ｂとは、中心角が同一に構成される。 [Effect of preventing leakage of magnetic field lines]
Further, as described above, in the drive side control panel 3, each seal iron plate 32 and each inner auxiliary iron core 33a and outer auxiliary iron core 33b are configured to have the same central angle. Similarly, in the counter-drive side control panel 4, each seal iron plate 42 and each inner auxiliary iron core 43a and outer auxiliary iron core 43b are configured to have the same central angle.

　これにより、上記の通り、隣り合う導体コイル７（コイル鉄心）の幅を補助鉄心３３の幅になるように設定した場合、駆動側制御盤３の回転方向において任意のシール鉄板３２上に位置する導体コイル７（コイル鉄心）の隣の導体コイル７は、当該シール鉄板３２の隣の補助鉄心３３上に位置することとなる。 As a result, as described above, when the width of the adjacent conductor coil 7 (coil core) is set to be the width of the auxiliary core 33, the conductor coil 7 (coil core) is located on an arbitrary seal iron plate 32 in the rotation direction of the drive side control panel 3. The conductor coil 7 next to the conductor coil 7 (coil core) is located on the auxiliary core 33 next to the seal iron plate 32.

　これにより、補助鉄心３３から発生する磁力が隣のシール鉄板３２側に侵入し、当該シール鉄板３２上に位置する導体コイル７（コイル鉄心）に漏れ、当該導体コイル７が磁化されて起電力低下を招くという状況を防止することができる。補助鉄心３３から発生する磁力は、当該補助鉄心３３上に位置する導体コイル７に閉じ込められるためである。 As a result, the magnetic force generated from the auxiliary iron core 33 invades the adjacent seal iron plate 32 side and leaks to the conductor coil 7 (coil iron core) located on the seal iron plate 32, and the conductor coil 7 is magnetized to reduce the electromotive force. It is possible to prevent the situation of inviting. This is because the magnetic force generated from the auxiliary core 33 is confined in the conductor coil 7 located on the auxiliary core 33.

　以上説明してきたように、本実施形態に係る発電機１によれば、手廻し増速器である動力生成器１０のハンドル１０ａを操作して一旦起動すれば、長時間発電を行わせることができ、効率的に発電可能で且つ発電に必要なトルクを低減させることが可能である。 As described above, according to the generator 1 according to the present embodiment, once the handle 10a of the power generator 10 which is a hand-cranked speed increaser is operated and started once, power generation can be performed for a long time. It is possible to generate electricity efficiently and reduce the torque required for power generation.

　以上、本発明の一実施形態について説明したが、上記実施形態は本発明の適用例の一つを示したものであり、本発明の技術的範囲を上記実施形態の具体的構成に限定する趣旨ではない。 Although one embodiment of the present invention has been described above, the above embodiment shows one of the application examples of the present invention, and the purpose is to limit the technical scope of the present invention to the specific configuration of the above embodiment. is not it.

　例えば、上記説明においては、動力生成器１０が手廻し増速器である場合を例に挙げて説明を行ってきたが、この場合に限定されるものではない。例えば動力生成器１０は風力発電に係るブレード（風車）や、ブレード及びブレードの回転を増速する増速器の組合せ等、不規則に動力を生成する他の動力生成手段であってもよい。 For example, in the above description, the case where the power generator 10 is a hand-cranked speed increaser has been described as an example, but the description is not limited to this case. For example, the power generator 10 may be another power generating means that irregularly generates power, such as a blade (wind turbine) related to wind power generation, or a combination of a blade and a speed increaser that accelerates the rotation of the blade.

１　発電機
２　磁石本体
３　駆動側制御盤
４　反駆動側制御盤
５　回転軸
６　固定軸
７　導体コイル
１０　動力生成器
１１　カップリング
２１　磁石（第１の磁石）
２２　磁石（第２の磁石）
３２、４２　シール鉄板 1 Generator 2 Magnet body 3 Drive side control panel 4 Counter drive side control panel 5 Rotating shaft 6 Fixed shaft 7 Conductor coil 10 Power generator 11 Coupling 21 Magnet (first magnet)
22 magnet (second magnet)
32, 42 Seal iron plate

Claims (8)

　第１の磁石と、前記第１の磁石と磁極の向きを逆にした第２の磁石とからなり、前記第１の磁石の磁極面と前記第２の磁石の磁極面が同一面を構成するよう形成された磁石本体と、
　前記磁石本体の一方の磁極面に隣接して配設され、当該駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板を有する、回転可能な円盤状の駆動側制御盤と、
　前記駆動側制御盤を挟んで前記磁石本体と逆側に配設される導体コイルと、
　前記駆動側制御盤を回転させる回転動力を生成する動力生成器と、
　を備えたことを特徴とする発電機。 It is composed of a first magnet and a second magnet in which the directions of the first magnet and the magnetic poles are reversed, and the magnetic pole surface of the first magnet and the magnetic pole surface of the second magnet form the same surface. With the magnet body formed like
An iron plate that is arranged adjacent to one magnetic pole surface of the magnet body and can switch between adsorption and non-adsorption on the magnetic pole surfaces of the first magnet and the second magnet according to the rotation of the drive side control panel. With a rotatable disk-shaped drive side control panel,
A conductor coil arranged on the opposite side of the magnet body across the drive side control panel,
A power generator that generates rotational power to rotate the drive side control panel,
A generator characterized by being equipped with. 　前記駆動側制御盤に連結される回転軸と、前記動力生成器が有する出力軸とを接続するラチェット型カップリングを備えたことを特徴とする請求項１に記載の発電機。 The generator according to claim 1, further comprising a ratchet type coupling for connecting a rotating shaft connected to the drive side control panel and an output shaft included in the power generator. 　前記第１の磁石及び前記第２の磁石はいずれも中空円柱状の磁石であって、
　前記第２の磁石の半径は、前記第１の磁石の中空部半径と略同一長であり、
　前記第２の磁石は、前記第１の磁石の中空部に挿入され固着されることを特徴とする請求項１に記載の発電機。 The first magnet and the second magnet are both hollow columnar magnets.
The radius of the second magnet is substantially the same as the radius of the hollow portion of the first magnet.
The generator according to claim 1, wherein the second magnet is inserted into and fixed to a hollow portion of the first magnet. 　前記鉄板は、前記駆動側制御盤の側面円周方向に所定間隔毎に設けられることを特徴とする請求項１に記載の発電機。 The generator according to claim 1, wherein the iron plate is provided at predetermined intervals in the circumferential direction of the side surface of the drive side control panel. 　前記磁石本体の他方の磁極面に隣接して配設され、当該反駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板を有する、回転可能な円盤状の反駆動側制御盤を更に備え、
　前記導体コイルは、更に、前記反駆動側制御盤を挟んで前記磁石本体と逆側に配設され、
　前記反駆動側制御盤は、前記駆動側制御盤に接続され、前記駆動側制御盤とともに回転することを特徴とする請求項１に記載の発電機。 It is arranged adjacent to the other magnetic pole surface of the magnet body, and can switch between adsorption and non-adsorption to the magnetic pole surfaces of the first magnet and the second magnet according to the rotation of the counter-driving side control panel. Further equipped with a rotatable disk-shaped counter-drive side control panel with an iron plate,
The conductor coil is further arranged on the opposite side of the magnet body with the counter-drive side control panel interposed therebetween.
The generator according to claim 1, wherein the counter-drive side control panel is connected to the drive-side control panel and rotates together with the drive-side control panel. 　前記反駆動側制御盤が備える鉄板は、前記反駆動側制御盤の側面円周方向に所定間隔毎に設けられることを特徴とする請求項５に記載の発電機。 The generator according to claim 5, wherein the iron plate included in the counter-driving side control panel is provided at predetermined intervals in the lateral circumferential direction of the counter-driving side control panel. 　前記駆動側制御盤が備える鉄板と、前記反駆動側制御盤が備える鉄板とは交互に前記磁石本体に吸着されることを特徴とする請求項６に記載の発電機。 The generator according to claim 6, wherein the iron plate included in the drive-side control panel and the iron plate included in the counter-drive-side control panel are alternately attracted to the magnet body. 　第１の磁石と、前記第１の磁石と磁極の向きを逆にした第２の磁石とからなり、前記第１の磁石の磁極面と前記第２の磁石の磁極面が同一面を構成するよう形成された磁石本体と、
　前記磁石本体の一方の磁極面に隣接して配設され、当該駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板が当該駆動側制御盤の側面円周方向に所定間隔毎に設けられ、回転可能な円盤状の駆動側制御盤と、
　前記駆動側制御盤に接続され且つ前記磁石本体の他方の磁極面に隣接して配設され、当該反駆動側制御盤の回転に応じて前記第１の磁石及び前記第２の磁石の磁極面に吸着・非吸着を切り替え可能な鉄板が当該反駆動側制御盤の側面円周方向に所定間隔毎に設けられ、前記駆動側制御盤とともに回転可能な円盤状の反駆動側制御盤と、
　前記駆動側制御盤及び前記反駆動側制御盤の各々を挟んで前記磁石本体と逆側に配設される導体コイルと、
　前記駆動側制御盤を回転させる回転動力を生成する動力生成器と、
　を備え、
　前記駆動側制御盤が備える鉄板と、前記反駆動側制御盤が備える鉄板とは前記磁石本体の側面の回転方向に沿った同一位置において交互に前記磁石本体に吸着されることを特徴とする発電機。 It is composed of a first magnet and a second magnet in which the directions of the first magnet and the magnetic poles are reversed, and the magnetic pole surface of the first magnet and the magnetic pole surface of the second magnet form the same surface. With the magnet body formed like
An iron plate that is arranged adjacent to one magnetic pole surface of the magnet body and can switch between attraction and non-adsorption to the magnetic pole surfaces of the first magnet and the second magnet according to the rotation of the drive side control panel. Are provided at predetermined intervals in the circumferential direction of the side surface of the drive side control panel, and a rotatable disk-shaped drive side control panel and
It is connected to the drive side control panel and is arranged adjacent to the other magnetic pole surface of the magnet body, and the magnetic pole surfaces of the first magnet and the second magnet are arranged according to the rotation of the counter drive side control panel. An iron plate capable of switching between suction and non-suction is provided at predetermined intervals in the lateral circumferential direction of the counter-drive side control panel, and a disk-shaped counter-drive side control panel that can rotate together with the drive-side control panel.
A conductor coil arranged on the opposite side of the magnet body with the drive side control panel and the non-drive side control panel sandwiched between them.
A power generator that generates rotational power to rotate the drive side control panel,
With
The iron plate included in the drive-side control panel and the iron plate included in the counter-drive-side control panel are alternately attracted to the magnet body at the same position along the rotation direction of the side surface of the magnet body. Machine.
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JPH0833271A (en) * 1994-07-13 1996-02-02 Seikosha Co Ltd Generator
JP2009089580A (en) * 2007-09-11 2009-04-23 Daikin Ind Ltd Axial gap type rotary electric machine and rotary drive device
US20130134815A1 (en) * 2009-11-17 2013-05-30 Magnomatics Limited Large magnetically geared machines
JP2017135811A (en) * 2016-01-26 2017-08-03 パナソニックＩｐマネジメント株式会社 Power generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0833271A (en) * 1994-07-13 1996-02-02 Seikosha Co Ltd Generator
JP2009089580A (en) * 2007-09-11 2009-04-23 Daikin Ind Ltd Axial gap type rotary electric machine and rotary drive device
US20130134815A1 (en) * 2009-11-17 2013-05-30 Magnomatics Limited Large magnetically geared machines
JP2017135811A (en) * 2016-01-26 2017-08-03 パナソニックＩｐマネジメント株式会社 Power generator

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