WO2008007668A1 - Moteur - Google Patents

Moteur Download PDF

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Publication number
WO2008007668A1
WO2008007668A1 PCT/JP2007/063734 JP2007063734W WO2008007668A1 WO 2008007668 A1 WO2008007668 A1 WO 2008007668A1 JP 2007063734 W JP2007063734 W JP 2007063734W WO 2008007668 A1 WO2008007668 A1 WO 2008007668A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnet
rotor
yoke
magnetic circuit
magnetic
Prior art date
Application number
PCT/JP2007/063734
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Motomura
Original Assignee
Mino, Ryouji
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mino, Ryouji filed Critical Mino, Ryouji
Publication of WO2008007668A1 publication Critical patent/WO2008007668A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K53/00—Alleged dynamo-electric perpetua mobilia

Definitions

  • the present invention relates to a motor using magnetism.
  • a heat engine such as an external combustion engine 'an internal combustion engine, a power using electric power, or a so-called electric motor is mainly used.
  • the external combustion engine is used by converting the pressure of steam generated outside the engine into energy, and a so-called reciprocating engine type and a turbine type are generally known.
  • An internal combustion engine uses the expansion and compression of air generated by burning fuel such as gasoline and light oil to obtain power such as rotational force and propulsive force.
  • an electric motor is generally a prime mover that obtains rotational motion by utilizing the interaction between a magnetic field and an electric current.
  • An electric motor generally has a structure including a rotor, a stator, a rotating shaft, and a bearing that supports the rotor.
  • a permanent magnetic field that is a rotor by periodically applying a varying magnetic field to the stator.
  • Force S can be generated by generating interaction with the magnet.
  • linear motors that directly obtain linear motion are also known as electric motors.
  • the present invention has been made in view of such a background, and an object of the present invention is to provide a motor that can continue to rotate for a long time with less energy.
  • a motor including a rotor including a magnet and a stator including a magnetic circuit that can be opened and closed, or a rotor including a magnetic circuit that can be opened and closed.
  • a stator including a magnet wherein the magnetic circuit is opened and closed in conjunction with the rotation of the rotor, or external power is introduced to synchronize with the rotation of the rotor. It has been found to be a solution by a motor configured to open and close.
  • the magnetic circuit is formed by a magnet and a yoke, and has an opening / closing mechanism capable of opening and closing the magnetic circuit in conjunction with rotation of the rotor.
  • This open / close mechanism is configured to open the circuit when the rotor or stator magnet approaches as the rotor rotates, and to close the circuit when the rotor or stator magnet moves away.
  • the magnetic circuit becomes a closed circuit, so the magnetic flux leaking from the circuit becomes very small, and the magnetic circuit It behaves like a non-magnetic ferromagnet.
  • the motor of the present invention includes the above-described opening / closing mechanism, the magnetic circuit is opened when the magnetic circuit and the rotor or stator magnet approach each other. Then, the magnetic flux leaks from the circuit, and the magnetic circuit behaves as a magnet. Therefore, a repulsive force acts between the rotor or stator magnet and the magnetic circuit, and acts to further apply a rotational force to the rotor.
  • the motor of the present invention applies an attractive force between them to apply a rotational force to the rotor, thereby fixing the rotor or the stator.
  • a repulsive force acts between them to apply a rotating force to the rotor.
  • the motor of the present invention can continue to rotate with a small amount of energy supply after applying sufficient rotational force to the rotor by external power during startup. Therefore, the motor according to the present invention is very excellent in energy saving performance.
  • a motor driven by the above-described principle is not known to the world as far as the inventors of the present application are aware.
  • the magnet used in the motor of the present invention is preferably a permanent magnet from the viewpoint of energy saving.
  • the permanent magnet it is desirable to use a neodymium magnet in terms of the force S that can use a neodymium magnet, a samarium magnet, a ferrite magnet, an alnico magnet, etc. and the strongest driving force.
  • the yoke used in the motor of the present invention is preferably a material having a high magnetic permeability and saturation magnetic flux density. As such a substance, pure iron, soft iron, silicon iron and the like are particularly suitable.
  • the shape of the rotor used in the motor according to the present invention can be various shapes such as a rod shape, a propeller shape, a disc shape, an annular shape, a cylindrical shape, and a cylindrical shape. It is also possible to use a so-called inner rotor type in which the rotor is arranged inside the stator, or an outer rotor type in which the rotor is arranged outside the stator. is there. It is also possible to adopt an embodiment in which a flat rotor and a stator are used and a plurality of layers are stacked to increase the output.
  • a mechanism that mechanically interlocks with the rotation of the rotor may be employed, or an electronically controlled electric motor or an internal combustion engine may be used to rotate the rotor.
  • the frictional force is large! / No need to use gears or belts! /, And! / There is.
  • the motor according to the present invention can be easily miniaturized and thinned by using a magnet having a strong magnetic force such as a neodymium magnet.
  • a magnet having a strong magnetic force such as a neodymium magnet.
  • the degree of freedom in magnet molding is very high, so it is easy to increase the size.
  • the present invention can be used, for example, from a motor having a rotor diameter of about several centimeters and a thickness of about 1 to 2 centimeters, which can be built into a portable personal computer, to a large generator.
  • the rotor diameter should be in the tens of centimeters to meters It can be applied to such a motor.
  • the motor according to the present invention can be operated for a long time without requiring much energy supply from the outside, so that it is excellent in energy saving and does not involve exhaust. Therefore, it can be applied to a wide range of fields as a power source for personal computers and other portable devices, a power source for refrigerators and other household devices, and an industrial power source.
  • the motor according to the present invention can continue to rotate for a long time by applying sufficient rotational force to the rotor by external power at the time of start-up or by continuously applying a small amount of power to the switch. It is suitable for application to generators or medium-sized industrial generators. If applied to a generator for an electric vehicle, it is possible to realize a generator capable of generating electricity not only during traveling but also during parking. As described above, the motor according to the present invention can be applied to various generators, and its excellent energy saving property will greatly contribute to energy saving of the whole society.
  • a rotor including a first magnet disposed so that a magnetic pole faces in a radial direction, and the first magnet as the rotor rotates.
  • a second magnet fixed adjacent to the moving circular path, and disposed so that the opposing magnetic poles are the same as each other when the first magnet approaches as the rotor rotates.
  • a stator having a magnetic circuit formed by a yoke, and opening the magnetic circuit in conjunction with the first magnet approaching the magnetic circuit as the rotor rotates, and the first magnet
  • a motor comprising opening / closing means for closing the magnetic circuit in conjunction with moving away from the magnetic circuit.
  • the rotor includes a plurality of arm portions extending in a radial direction, and the first magnet is provided on each of the arm portions. It can be configured to be arranged so that the same magnetic pole is directed in the radial direction. Also said times
  • the trochanter is a disk-shaped member that can rotate around a central axis, and a plurality of the first magnets may be configured to face the same magnetic pole in the radial direction at the periphery of the disk member.
  • the rotor is an annular member that can rotate around a central axis, and a plurality of the first magnets are respectively directed to the same magnetic pole in the radial direction at the annular portion of the annular member. You may comprise.
  • the magnetic circuit may be fixed not only on the outer side of the circular path but also on the inner side.
  • the rotor When the magnetic circuit is arranged outside the circular path, the rotor rotates inside the stator, and when the magnetic circuit is arranged inside the circular path, the rotor is the stator. Will take the embodiment of rotating outside.
  • the first magnet has an arc shape.
  • the magnetic circuit includes a first yoke joined to one pole of the second magnet and the other of the second magnet.
  • the opening / closing means is provided in the vicinity of the first magnet in the rotor.
  • a second abutting portion to be configured.
  • the magnetic circuit is joined to one pole of the second magnet, and the other side of the second magnet.
  • a second yoke joined to the pole, a first position adjacent to both the first yoke and the second yoke, and a distance from one or both of the first yoke and the second yoke.
  • a third yoke that is rotatably provided between the second positions, and the opening / closing means is any one of a gear, a cam, a belt, an electric actuator, an electric motor, an internal combustion engine, a wind power propeller, and the like.
  • the third yoke may be configured to rotate using one or more.
  • a rotor including a magnetic circuit formed by a second magnet and a yoke arranged so that magnetic poles are directed in the radial direction, and the rotation As the rotor rotates, the magnetic circuit is fixed adjacent to the moving path, and when the second magnet comes close as the rotor rotates, the opposing magnetic poles are identical to each other.
  • a stator having a first magnet disposed, and opening the magnetic circuit in conjunction with the magnetic circuit approaching the first magnet as the rotor rotates, and the magnetic circuit And an opening / closing means for closing the magnetic circuit in conjunction with moving away from the magnet.
  • the first magnet may be fixed outside the circular path of the magnetic circuit, or may be fixed inside.
  • the former is an inner rotor type motor, and the latter is an outer rotor type motor.
  • FIG. 1 is a diagram schematically showing the structure of a motor 100 which is an example of a motor according to the present invention.
  • the motor 100 includes a rotor 102 and magnetic circuits 104a and 104b fixed to a stator (not shown).
  • the rotor 102 is configured to rotate counterclockwise by the rotation shaft 106 and has two arms 108a and 108b extending from the rotation shaft 106 in the radial direction.
  • the arm portions 108a and 108b have permanent magnets 110a and 110b, respectively, arranged so that the magnetic poles are directed in the radial direction, and these magnets have the same radial magnetic poles as depicted in FIG. It is arranged like this. (As shown in Fig. 1, in this example, it is arranged so that the north pole faces in the radial direction).
  • the magnetic circuits 104a and 104b are installed on a stator (not shown) adjacent to the rotation circumference of the rotor 102.
  • the magnetic circuit 104a includes a permanent magnet 112a, a yoke 114a joined to the south pole of the magnet 112a, and a yoke 116a joined to the north pole of the magnet 112a.
  • a yoke 118a is provided so as to be movable.
  • the magnetic circuit 104a behaves as a magnet with magnetism as a whole. In this way, the yoke 118a rotates to close or open the magnetic circuit 104a and magnetize the properties of the magnetic circuit 104a! /, NA! /, Or magnetize from the magnetic material! / Change to the body.
  • the means for rotating the yoke 118a a mechanism that rotates mechanically in conjunction with the rotation of the rotor 102 may be employed, or the yoke 118a may be rotated by an electric motor, an internal combustion engine, or the like. You may control as follows. An example of means for mechanically rotating the yoke 118a will be described later using another embodiment.
  • the magnetic pole facing the magnet 110a or 110b is a magnet. 1 Arranged to have the same polarity as 10a and 110b.
  • the forces are drawn so that the opposing magnetic poles are all N poles, as well as the opposing magnetic poles may be S poles.
  • the magnetic circuit 104b also includes a permanent magnet 112b and a yoke 114b to a yoke 118b.
  • the magnetic circuit 104b and the magnetic circuit 104a have the same structure, and the symbols a and b are simply given to distinguish these components in FIG. In the example of Fig. 1, two magnetic circuits are provided.
  • the number of magnetic circuits can be one or four, and various numbers can be taken according to the request for specific embodiments. .
  • the magnets 110a and 110b of the rotor 102 are located away from the magnetic circuits 104a and 104b, as depicted in FIG. 2A. From this state, it is assumed that the rotor 102 is rotated counterclockwise by some method such as electrical / mechanical (FIG. 2B).
  • the magnetic circuits 104a and 104b are in a closed state, as described above, they behave like a ferromagnetic material having no magnetism as a whole. Therefore, the magnets 110a and 110b of the rotor 102 are attracted to the magnetic circuits 104a and 104b so that the magnet is attracted to the iron. It is sent. This attractive force gives a rotational force to the rotor 102, and the rotor further rotates (FIG. 2C).
  • the rotor 102 When the rotor 102 further rotates and reaches the magnet 110a, 110b force S magnetic circuit 104a, 104b (see Fig. 2D), the yokes 118a, 118b rotate, and the magnetic circuits 104a and 104b Is opened. Then, as described above, the magnetic circuits 104a and 104b function as a magnet as a whole.
  • the magnets 112a and 112b have magnetic poles facing the magnets 110a and 110b, respectively, so that a strong repulsive force acts between the magnets 110a and 110b and the magnetic circuits 104a and 104b.
  • a rotational force is applied to the rotor 102, and the rotor 102 is further rotated counterclockwise (FIG. 2E). Thereafter, the yokes 118a and 118b return to the positions where the magnetic circuits 104a and 104b are closed, and the magnets 110a and 11 Ob and the magnetic circuits 104a and 104b are attracted again (FIG. 2F).
  • the magnets 110a and 110b provided on the rotor 102 are located away from the magnetic circuits 104a and 104b by the yokes 118a and 118b opening and closing the magnetic circuits 104a and 104b.
  • the magnets 110a and 110b are attracted to the magnetic circuits 104a and 104b, and when the magnets 110a and 110b are close to the magnetic circuits 104a and 104b, the magnets 110a and 110b and the magnetic circuits 104a and 104b are In order to repel each other, rotational force is applied to the rotor 102 one after another.
  • the motor 100 is a very energy saving motor.
  • the motor 100 rotates continuously without supplying energy from the outside. I can't continue.
  • the motor 100 according to the present invention due to the above-described unique configuration, provides a sufficient rotational force at the time of start-up by the repulsive-repulsive force acting repeatedly on the magnet and the magnetic circuit provided in the rotor. Thereafter, the motor 100 itself can apply a rotational force to the rotor 102. Therefore, the motor 100 can be continuously rotated for a long time with less energy than the conventional motor, and it can be said that the motor 100 is extremely excellent in energy saving.
  • the shape of the rotor of the motor according to the present invention is like the rotor 102
  • the number of arms may be three, four, five, or more, without being limited to the shape in which two arms extend from the central axis.
  • a disk-shaped or annular rotor In such a case, a magnet could be placed near the outer edge of the disk or ring.
  • the number and interval of the magnets can be arbitrarily selected according to the embodiment.
  • the magnetic poles of the magnets should all be the same in the radial direction.
  • the number of magnets provided in the rotor and the number of magnetic circuits provided in the stator are not limited to two, and may be any number of three, four, five, or more.
  • the number of magnets installed in the rotor or stator is three, four, or more than two. Force The attractive force and repulsive force applied to the rotor will be large, which is preferable.
  • the shape of the rotor can be cylindrical.
  • a motor in which an openable and closable magnetic circuit such as 104a and 104b is arranged on the rotor side and a fixed magnet such as 110a and 110b is arranged on the stator side is also included in the present invention.
  • magnets corresponding to 110a and 110b it is preferable to install magnets corresponding to 110a and 110b so as to be movable on the stator in the radial direction of the rotor. If the radial distance between the magnet on the stator and the magnetic circuit on the rotor is reduced, the attractive force / repulsive force acting between them will increase, and if the radial distance is increased, the attractive force acting between them will be increased. ⁇ Repulsion decreases.
  • the magnetic circuits 104a and 104b can be configured to be movable. However, rather than moving the entire magnetic circuit, a single magnet such as 110a and 110b can be used. It would be easier to configure it to move.
  • the rotor rotates inside the stator.
  • Such a configuration has an advantage that the rotor can be made small and light.
  • the motor according to the present invention can also be configured to rotate the rotor outside the stator. .
  • FIG. 3 is a schematic diagram showing an example of such a motor.
  • a motor 300 according to another embodiment of the present invention is fixed at equal intervals to an annular rotor 302 and a stator (not shown) disposed inside the rotor 302 and adjacent to the rotor 302. And four magnetic circuits 306a to 306d.
  • the annular rotor 302 includes four arc-shaped magnets 304a to 304d that are installed at equal intervals along the circumference of the annular rotor 302.
  • Arc-shaped magnets 304a to 304d are all disposed such that the magnetic poles are oriented in the radial direction of rotation of rotor 302. That is, the arc-shaped magnets 304a to 304d are magnets having different outer diameter sides and inner diameter sides, and the outer diameter side magnetic poles and the inner diameter side magnetic poles are all arranged to be the same.
  • the magnetic circuits 306a to 306d are the same as the magnetic circuits 104a and 104b described in FIG. 1 and FIG. 2, and include a magnet, two yokes joined to the respective pole portions thereof, and magnetically connecting these yokes. And a magnetic circuit open / close switch that can be connected and disconnected.
  • the magnetic circuit magnet poles are arranged so that their poles are identical to each other (ie, repel each other) when in proximity to the rotor magnet.
  • the magnetic circuit open / close switch opens the magnetic circuits 306a to 306d in conjunction with the approach of the arc-shaped magnets 304a to 304d, and closes the magnetic circuits 306a to 306d in conjunction with the separation of the arc-shaped magnets 304a to 304d. Similar to the magnetic circuits 104a and 104b, the magnetic circuits 306a to 306d also behave as non-magnetized magnetic bodies when the circuit is closed, and behave as magnets when the circuit is open.
  • the rotor 302 is configured to be able to rotate counterclockwise.
  • Rotor 302 Force As shown in FIG. 3A, the magnetic circuits 306a to 306d are closed when they are located away from the arc-shaped magnets 304a to 304d S magnetic circuits 306a to 300d. For this reason, an attractive force acts between the circular magnets 304 a to 304 d and the magnetic circuits 306 a to 306 d, and this applies a rotational force to the rotor 302.
  • FIG. 3B when the rotor 302 rotates until it approaches the arc-shaped magnets 304a to 304d and the magnetic circuits 306a to 306d, the magnetic circuits 306a to 306d open, and the magnetic circuits 306a to 306d force S Behaves.
  • the motor 300 like the motor 100, applies a rotational force to the rotor 302 by itself by repeatedly applying an attractive force / repulsive force to the magnet and the magnetic circuit provided in the rotor. be able to. Therefore, the motor 300 is also an excellent motor for energy saving, and furthermore, since the rotor rotates outside the stator, it is possible to consolidate the center of the stator and increase the size of the rotor. .
  • FIG. 4 is a plan perspective view of a motor 500 according to another embodiment of the present invention
  • FIG. 5 is a view taken in the direction of arrow A in FIG.
  • the motor 500 includes a disk-like rotor 2 that is rotatably supported on the frame 1 by the rotating shaft 11, and four magnetic circuits 3, 4, 5, and 6 that are fixed to the frame 1.
  • Arc-shaped magnets 16, 17, 18, 19 are installed at equal intervals on the peripheral edge of the disk-like rotor 2.
  • the arc-shaped magnets 16 to 19 are magnets having different magnetic poles on the outer diameter side and the inner diameter side, and are all installed so that the same pole is directed in the radial direction.
  • Magnetic circuits 3 to 6 fixed at equal intervals adjacent to the outer edge of the rotor 2 are basically the same as the magnetic circuits 104a, 104b and 306a to 306d appearing in the front row.
  • the rod-shaped magnets 12 to 15 are arranged such that when the magnets 16 to 19 provided on the rotor 2 are closest to each other as the rotor 2 rotates, their magnetic poles face the same poles as the magnets 16 to 19.
  • the switches 7 to 10 are in close proximity to the bar magnets 12 to 12; It has the effect of confining the magnetic flux generated from 15 inside the circuit. Therefore, in the state where the switches 7 to 10 are closed, the magnetic circuits 3 to 6 behave like a simple ferromagnet which is not magnetized, like the magnetic circuits 104a and 104b in the closed state. (Of course, the magnetic flux leaking from the magnetic circuits 3 to 6 is not 0, but not many.) Also, the magnetic flux generated from the bar magnets 12 to 15 when the switches 7 to 10 are turned to the open position.
  • the magnetic circuits 3 to 6 are controlled by the force S acting like a magnet, like the magnetic circuits 104a and 104b in the open state.
  • the force S acting like a magnet like the magnetic circuits 104a and 104b in the open state.
  • An advantage of using a disk-like or annular member as the rotor 2 is that an arc-shaped magnet having such an advantage can be easily attached.
  • the rotor 2 In the vicinity of the arc-shaped magnet 17, the rotor 2 is provided with a pin holding base 25 fixed to the surface of the rotor 2, and is held by the pin holding base 25 so as to project in the radial direction of the rotor 2. And a pin-like contact portion 38.
  • the opening / closing element 8 includes an opening / closing element support frame 50 formed by protruding from the frame 1 in a frame shape, and a shaft 31a passed between the beam portion of the support frame 50 and the frame 1,
  • the 28 force shaft 31a is rotatably supported between the yokes 13a and 13b joined to the poles of the magnet 13, respectively. As the yoke 28 rotates, the yokes 13a and 13b are magnetically coupled or separated.
  • the opening / closing element 8 includes a flat plate 32 passed between the two column portions of the support 50 at the upper portion of the yoke 28, a shaft column 31 that is integrated with the shaft 31a at the upper portion of the flat plate 32, the shaft Installed on the end of the rotor side of the rod 29 and flat plate 32 that extend from the column 31 parallel to the yoke 28 on both sides of the shaft, and can be rotated stably at the initial position by being biased by a panel (not shown)
  • the lever 30a is coupled to the lever 30a, and has a hook 30 that protrudes from the back of the flat plate 32 to the front and locks the rod 29.
  • the rod 29 extends parallel to the yoke 28, the rod 29 extends in the radial direction of the rotor 2 when the yoke 28 is in a closed state. Further, the rod 29 has such a length that it abuts against the pin 38 when the pin 38 comes close to the opening / closing element 8 as the rotor 2 rotates. The initial position of the lever 30a is also determined so that the pin 38 abuts against the pin 38 when it is close to the switch 8. [0051] When the rotor 2 rotates counterclockwise and the magnet 17 is closest to the magnetic circuit 4 as shown in FIG. 6, first, the pin 38 hits the lever 30a, so that the lever 30a rotates counterclockwise.
  • the hook 30 that has fallen and is coupled to the lever 30 a retracts below the flat plate 30. Then pin 38 hits rod 29. Then, since the hook 30 is retracted below the flat plate 30, the rod 29 is bounced off and rotates clockwise together with the shaft column 31 and the shaft 31a. Since the yoke 28 is connected to the rod 29 via the shaft column 31 and the shaft 31a, when the rod 29 rotates, the yoke 28 also rotates and the magnetic circuit 4 is opened. When the magnetic circuit 4 is opened, the magnetic circuit 4 behaves as a magnet, and the magnet 13 of the magnetic circuit 4 is installed so that the pole faces the magnet 17 of the rotor 2. A repulsive force acts between the magnets 17, and a force is applied to the rotor 2 to further rotate the rotor 2 counterclockwise.
  • the lever 30a and the hook 30 are arranged so as to protrude above the flat plate 32. Good.
  • the pin 38 also needs to be configured to pass below the flat plate 32.
  • gravity acts so as to return to the original position with respect to the lever 30a jumped to the pin 38, there is an advantage that the lever 30a and the hook 30 can be easily returned to the initial positions. Therefore, as the panel for urging the lever 30a and the hook 30 to the initial position, the embodiment illustrated in FIG. 6 is not used, and the embodiment using the one having a weaker elastic force than the motor, or the panel is not used at all! It is also possible to take the embodiments described above.
  • the magnetic circuit opening / closing mechanism of the motor 500 can mechanically open and close the magnetic circuits 3 to 6 in conjunction with the rotation of the rotor 2. Therefore, the rotor retains sufficient rotational force During this time, there is an advantage that it is not necessary to separately supply power to open and close the magnetic circuits 3 to 6. In addition, there is no need to prepare an actuator for opening and closing the magnetic circuits 3 to 6 and a control circuit for controlling the opening and closing timing, so the structure is simplified.
  • the magnets 16 to 19 are closest to the magnetic circuits 3 to 6 by providing the pin 38 in the vicinity of the magnets 16 to 19 of the rotor 2 without providing a timing control circuit or the like separately. Sometimes it is possible to reliably open the magnetic circuits 3-6.
  • the motor 500 0 can accelerate the rotor 2 by the attractive force acting between the magnets 16-19 and the magnetic circuits 3-6 until the magnets 16 ⁇ ; 19 of the rotor 2 are closest to the magnetic circuits 3-6. it can. However, if the magnets 16 to 19 pass through the vicinity of the magnetic circuits 3 to 6 and the attractive force is still acting between them, the magnets 16 to 19 are pulled back toward the magnetic circuits 3 to 6 It will inhibit the rotation of rotor 2. However, as soon as the magnets 16 to 19 are in close contact with the magnetic circuits 3 to 6, the motor 500 starts to repel the magnets 16 to 19 and opens the rotor 2 further. It can be accelerated. Therefore, the motor 500 can use the attractive force / repulsive force acting between the rotor 2 and the magnetic circuits 3 to 6 very efficiently to rotate the rotor 2.
  • the magnetic circuit is opened by causing the rod 29 and the pin 38 to collide with each other, but it goes without saying that the rod and the pin are examples. Various shapes can be used.
  • the magnetic circuit opening / closing mechanism of the motor 500 further includes an auxiliary mechanism for facilitating opening / closing of the switches 7 to 10.
  • the shaft column 31 is provided with a rod 33 protruding perpendicularly to both the shaft 31 a and the rod 29, and magnets 34 and 35 are attached to both ends of the rod 33.
  • magnets 36 and 37 are attached to the rod protruding from the support frame 50. The magnets 36 and 37 are arranged so as to face the magnets 3 and 35 when the yoke 28 is in a position to close the magnetic circuit 4.
  • the magnets 34 and 35 are attached so that the outer diameter side has the same polarity, and the magnets 36 and 37 are attached so as to have the same polarity as the magnets 34 and 35 facing the magnets 34 and 35 as much as possible. Therefore, when the yoke 28 is in a position to close the magnetic circuit 4, a repulsive force acts between the magnets 34 and 35 and the magnets 36 and 37.
  • the yoke 28 is magnetically strong against the yokes 13a and 13b when the magnetic circuit 4 is in the closed position. Because it is drawn, it requires a certain amount of force to rotate it
  • the repulsive force acting between the magnets 34 and 35 and the magnets 36 and 3 7 further reduces the force required to rotate the yoke 28, and the rotor 2 can rotate the rod 29 with a smaller force. Can be played. That is, the energy required for the rotor 2 to open and close the switches 7 to 10 is further reduced, and the external energy supply for the motor 500 to continue rotating the rotor 2 is further reduced. I'll do it.
  • FIG. 7A is a plan view of a second opening / closing assist mechanism described here, and 76B is a side view.
  • the second opening / closing assist mechanism is connected to a pulley 41 provided inside the magnetic circuit 4, a pulley 42 fixed to the yoke 28 via a ratchet mechanism, a wire 40 and a pulley 41 to 43.
  • a small magnetic member 39 and a spring 42 fixed to the lower part of the pulley 42 are provided.
  • the ratchet mechanism of the pulley 42 transmits the rotational force to the yoke 28 only in the direction in which the yoke 28 is rotated by the rotor 2 (clockwise in FIG. 6A).
  • the node 43 is configured to apply a rotational force in the direction opposite to the rotational direction of the yoke 28 to the pulley 42.
  • the small magnetic member 39 receives the elastic force of the spring 43 through the wire 40, thereby It is held in the vicinity of b at a position separated from the yoke 13b!
  • the magnetic flux of the rotor magnet reaches the magnetic circuit 4 and is added to the magnetic flux in the timing circuit, causing an overflow in the magnetic circuit.
  • the small member 39 which is a magnetic body, is attracted to the yoke 13b, pulling the wire 40 and trying to rotate the pulley 42.
  • the yoke 28 is fixed to the pulley 42, the yoke 28 is also rotated as the pulley 42 rotates.
  • the second opening / closing assist mechanism has an effect of assisting the rotation of the yoke 28, the kinetic energy consumed by the rotor 2 for rotating the yoke 28 can be reduced. That is, there is an effect that the rotor 2 can continue to rotate for a longer time.
  • yoke 28 rotates 180 degrees, hook 30 locks rod 29, rotation of yoke 28 stops, and magnetic circuit 4 is closed.
  • the magnetic flux leaking from the yoke 13b is reduced, and the attractive force to the magnetic small member 39 is drastically reduced.
  • the magnetic small member 39 is pulled back to the initial position by the force of the spring 43.
  • the pulley 42 rotates in the reverse direction, but since the ratchet mechanism is incorporated, no rotational force in the reverse direction is applied to the yoke 28.
  • the magnetic small member 39 Since the magnetic small member 39 frequently receives a magnetic force as the magnetic circuit 4 is opened and closed, it is preferable that the magnetic small member 39 is a substance that is hardly magnetized even though it is a magnetic substance. As such a substance, for example, pure iron can be used.
  • the magnets provided in the rotor 2 and the magnets 16 to 19 and the magnets 12 to 15 provided in the magnetic circuits 3 to 6 are not affected by the leakage flux of the magnetic circuits 3 to 6 even though the same magnetic poles are opposed to each other. Because there are few, they do not repel each other, and conversely, the magnetic circuits 3 to 6 attract the magnets 16 to 19 of the rotor 2 as simple ferromagnets. Due to this attractive force, the rotation of the rotor 2 is accelerated.
  • the pin of the opening / closing mechanism provided in the rotor 2 always opens and closes the rod of the opening / closing element 7 ⁇ ; 10 at the position where the magnet of the rotor is closest to the magnetic circuit.
  • the child is half-turned and hooked. Therefore, the magnetic circuit will always open, coincident with the magnet provided on the rotor closest to the magnetic circuit, and the magnetic circuit will close when the magnet provided on the rotor leaves the magnetic circuit.
  • various mechanisms such as a panel spring, a shape memory alloy, an electromagnet, and an electric actuator can be used as the opening / closing auxiliary mechanism.
  • FIG. 10 (a) schematically shows the shape of such a movable yoke.
  • the rotary yoke 28 ′ when viewed from above, the rotary yoke 28 'has a butterfly shape in which two sectors are aligned in opposite directions from each other!
  • the operation of the motor 500 ′ which is a modification of the motor 500 using the force and the rotating yoke 28 ′, will be described with reference to FIGS. 10 (b) to 10 (d).
  • the motor 500 ′ is the same as the motor 500 described in FIGS. 4 to 9 except that the shape force of the rotary yoke 28 is a butterfly type.
  • the magnetic circuit 4 ′ is the same as the magnetic circuit 4 described in FIGS. 4 to 9 except that the movable yoke is a butterfly yoke 28 ′. Therefore, the same components as those of the motor 500 are denoted by the same reference numerals and description thereof is omitted.
  • the arc-shaped magnet 17 provided on the rotor 2 is a magnetic circuit 4 ′. When the force is also away, the rotary yoke 28 'is in a position to close the magnetic circuit 4'.
  • the rotating yoke 28 ' rotates to a position where the magnetic circuit 4' can be closed.
  • the rotating yoke 28 ' has a butterfly shape, so that the fan-shaped protruding portion enters between the yokes 13a and 13b, thereby rotating the rotating yoke 28'.
  • the magnetic circuit 4 ′ can be closed earlier than the yoke 28. In this way, by making the movable yoke into a butterfly shape, it is possible to obtain the effect that the opened magnetic circuit can be quickly closed with the force S.
  • FIG. 11 is a top perspective view and a side view of a motor 1100 according to the present invention.
  • the motor 1100 has the same configuration as the motor 500 except for the opening / closing mechanism of the magnetic circuit 4. Therefore, the same components as those of the motor 500 are denoted by the same reference numerals and description thereof is omitted.
  • the motor 1100 is fixed to the rotor 2 and is provided with a first gear 1102 provided so as to be able to rotate with respect to the same rotational axis as the rotor 2, and a magnetic circuit.
  • a second gear 1104 that is fixed directly or indirectly to the four rotating yokes 28 so as to rotate about the same rotation axis as the rotating yoke 28.
  • the first gear 1102 and the second gear 110 4 are provided so as to mesh with each other, so that the magnetic circuit 4 can be opened and closed in conjunction with the rotation of the rotor 2, especially on the rotor 2.
  • the diameter of the gear is adjusted so that the rotating yoke 28 opens the magnetic circuit 4 when the arc-shaped magnet 17 is closest to the magnetic circuit 4. In the case of a rotor having four magnets at regular intervals, such as the rotor 2, the diameter of the gear connected to the rotary yoke is half that of the rotor.
  • an opening / closing mechanism using gears has an advantage that it can be operated more silently than an opening / closing mechanism that collides the abutment portion, such as an opening / closing mechanism in the motor 500.
  • the motor 1100 is further equipped with a flywheel 1106 on the gear 1104. Due to the inertial force of the flywheel 1106, the force for rotating the rotary yoke 28 is averaged, and the opening / closing operation of the magnetic circuit 4 can be made more stable.
  • the motor 1200 like the motor 500, has a disk-shaped rotor 1202, an arc-shaped magnet 1204 installed on the rotor 1202, and a magnetic that opens and closes in conjunction with the rotation of the rotor 1202. Circuits 1206 and 1208.
  • a disk-shaped rotor 1202 an arc-shaped magnet 1204 installed on the rotor 1202
  • four magnets similar to the arc-shaped magnet 1204 are arranged every 1/4 turn, like the rotor 2 described above.
  • the magnetic circuits 1206 and 1208, like the magnetic circuit 4 described above, are composed of a bar magnet, a yoke joined to both ends thereof, and a yoke that is rotatably provided so that the magnetic circuit can be opened and closed.
  • the respective bar magnets 1210 and 1212 are arranged so that the pole directions are opposite to each other.
  • the magnetic circuits 1206 and 1208 are installed so as to overlap each other at a predetermined interval so that the mutual magnetic forces do not influence each other.
  • the rotary yoke 1214 that opens and closes the magnetic circuit 1206 and the rotary yoke 1216 that opens and closes the magnetic circuit 1208 are arranged so as to cross each other at a right angle and are configured to rotate around the same rotation axis. Is done. For this reason, the magnetic circuits 1206 and 1208 have an arrangement relationship in which one is closed! /, And the other is opened! /,! /.
  • An advantage of the profitable configuration is that the force S can be increased to increase the force for rotating the rotor.
  • the magnetic circuit 1206 When the arc-shaped magnet 1204 approaches the magnetic circuits 1206 and 1208, the magnetic circuit 1206 is open and the magnetic circuit 1208 is closed. A force acts, and a force to attract the magnetic material acts between the magnetic circuit 1208 and the magnetic circuit 1208. On the other hand, when the magnet 1204 moves away from the magnetic circuits 1206 and 1208, the magnetic circuit 1206 is closed and the magnetic circuit 1208 is open. Since the force works, the force acts in a direction that prevents rotation, but the magnetic circuit 1208 has a force repelling each other with the same polarity. [0075] Therefore, the magnitude of the rotational force acting while the magnetic circuit is opened and closed once will be calculated.
  • the magnitude of the attractive force acting on the rotor magnet and the magnetic circuit when the magnetic circuit is closed 1 and the repulsive force or attractive force acting on the rotor magnet and the magnetic circuit when the magnetic circuit is open is expressed as 2.
  • the reason why the force is stronger when the magnetic circuit is open is that the magnetic circuit is closed when the magnetic circuit is closed. This is because the magnetic circuit itself acts as a magnet.
  • the rotational force applied by the magnetic circuit 1206 is 2, and the rotational force applied by the magnetic circuit 1208 is 1, which is a total of three.
  • the rotational force applied by the magnetic circuit 1206 is -1, and the rotational force applied by the magnetic circuit 1208 is 2, for a total of one. Therefore, in the motor 1 200, the magnitude of the rotational force acting while the magnetic circuit is opened and closed once is estimated to be 4.
  • the magnetic circuit is a single layer like the motor 500 described above, the force acting between the rotor and stator while the magnetic circuit is opened and closed once approaches the rotor magnet.
  • the total is 3, with 1 attraction at the stage and 2 at repulsion.
  • the longitudinal width of the magnet of the rotor is made thicker because the magnetic circuit has two layers compared to the embodiment like the motor 500.
  • the other mechanisms can be applied to the other opening / closing mechanisms and auxiliary opening / closing mechanisms.
  • the generator 1400 has a structure in which a motor 1402 and a dynamo 1404 are incorporated in a frame 1406. Details of the motor 1402 are depicted in FIGS. 14B and 14C.
  • the motor 1402 includes an annular rotor 1408 having four annular magnets 1410 at equal intervals on the periphery, and a stator having four openable / closable magnetic circuits 1412 similar to the magnetic circuits 4 and 4 ′ described above.
  • the motor has a structure in which six motors are stacked. Each motor is the same motor as the motors 500 and 1100 described above except that the rotor has an annular shape.
  • Each rotor 1408 is rotated about the shaft 1405 as a central axis by being fixed to a frame 1403 fixed to the shaft 1405 rotatably held by the bearing 1405a. It is configured to be able to roll. As with the motor 500 and 1100, each magnetic circuit 1412 is configured to open and close in conjunction with the rotation of the rotor 1408.
  • Each magnetic circuit 1412 includes a rotating yoke similar to the rotating yoke 28 described above, and these are connected so as to rotate around the same rotation axis in the vertical direction.
  • a flywheel 1414 is connected to the top and bottom of the yoke rotation shaft, and the magnetic circuit 1412 can be stably opened and closed by its inertial force.
  • the dynamo 1404 is installed inside the frame 1403 while sharing the rotation axis. When the motor 1402 rotates according to the principle of the present invention described above, power is generated by the dynamo.
  • FIG. 15A to FIG. 15D are top perspective views schematically showing the configuration and operation of the motor 1500 according to the embodiment to be introduced.
  • the motor 1500 includes a rotor having four arc-shaped magnets installed on the circumference, and a stator having four magnetic circuits that can be opened and closed by the rotating yoke.
  • the magnetic circuit opens and closes in conjunction with the rotation of the rotor, an attractive or repulsive force acts between the magnet on the rotor and the magnetic circuit, and this is a motor that gives the rotor a rotational force.
  • 15A to 15D the same components as those in the above-described embodiment are given the same reference numerals, and the description thereof may be omitted.
  • the magnetic circuit 4 ' is equivalent to the magnetic circuit described with reference to FIG. 10, and the rotary yoke 28' has a butterfly shape! /,
  • the motor 1500 includes a gear 1102 supported on the same rotation shaft as the rotor 2 and a gear 1104 supported on the same rotation shaft as the rotation yoke 28 ′. These gears are installed so that they mesh with each other, so that the rotation of the rotor and the opening and closing of the magnetic circuit are interlocked.
  • the diameter of gear 1104 is half that of gear 1102, and the rotational speed of gear 1104 is twice that of gear 1102.
  • the motor 1500 is characterized by including two magnets 1502 and 1504 at the peripheral edge of the gear 1104 that is pivotally supported by the rotating shaft of the rotating yoke 28 ′. As depicted in FIG. 15A, magnets 1502 and 1504 are placed 180 degrees apart on gear 1104. Magnets 1502 and 1504 The direction of the pole is directed to the tangential direction of the gear 1104, and is oriented so as to be flat fi in the longitudinal direction of the rotary yoke 28 '. The spring connecting the magnets 1502 and 1504 is orthogonal to the longitudinal direction of the rotary yoke 28 '.
  • the magnetic poles of the magnets 1502 and 1504 are oriented so that the magnetic pole on the rear side in the rotation direction of the gear 1104 is the same as the magnetic pole on the outer peripheral side of the rotor. That is, referring to FIG. 15A, the rotation direction of the rotor 2 and the gear 1102 is counterclockwise, the rotation direction of the rotary yoke 28 ′ and the gear 1104 is clockwise, and the magnet 16 of the rotor 2 Since the outer magnetic poles such as 17 are N poles, the magnetic poles of magnets 1502 and 1504 are arranged so that the clock front is S pole and the rear is N pole.
  • the shape of the magnets 1502 and 1504 can be, for example, a small disk shape, and the magnetic force does not have to be very strong.
  • the angle formed by the arc of arcuate magnets 16 and 17 and the center of rotation of rotor 2 is 40 degrees.
  • the width of the rotary yoke 28 ' is approximately one third of the length at the center thereof, and the angle of the butterfly portion is approximately 20 degrees.
  • the turning radius of the rotating yoke 28 ′ is approximately one tenth of the turning radius of the rotor 2.
  • these numbers are only an example.
  • FIG. 15A depicts a state in which the magnet 17 faces the magnetic circuit 4 ′ among the four arc-shaped magnets provided in the rotor 2 rotating counterclockwise in the drawing. .
  • the gear 1104 provided on the rotating yoke 28 ' is rotated by the gear 1102 that rotates together with the rotor 2.
  • the rotating yoke 28' is still closed in the state shown in FIG. 15A. Therefore, a force is exerted on the rotating yoke 28 'to keep the rotating yoke 28' in the circuit closed position through the yokes 13a and 13b.
  • the magnet 17 and the magnet 1502 have the same polarity as the opposing magnetic poles, and the magnet 17 and the magnet 1504 have the opposite magnetic pole force different from each other.
  • a repulsive force acts between the magnet 17 and the magnet 1504, and an attractive force acts between the magnet 17 and the magnet 1504.
  • a force acts to rotate the gear 1104 and the rotating yoke 28 'clockwise. That is, the magnetic force acting between the magnet 17 and the magnets 1502 and 1504 serves to assist the gear 1102 in rotating the gear 1104. For this reason, the gear 1102 can rotate the gear 1104 with less force than when the magnet 1502 and the magnet 1504 are not provided.
  • the rotating yoke 28 ' is formed such that the magnetic circuit 4' starts to open when the magnet 17 rotates 20 degrees or more from the state of Fig. 15A. (Note that this is only an example. See Fig. 15B.) Then, as described above, a strong repulsive force acts between the magnetic circuit 4 'and the magnet 17, and a rotational force is applied to the rotor 2. This force also acts to rotate the rotating yoke 28 'clockwise via gears 1102 and 1104. Further, since the magnet 1502 repels the magnetic flux of the opened magnetic circuit 4 ′, the repulsive force also acts to rotate the rotating yoke 28 ′ via the gear 1104. Therefore, the rotation of the rotary yoke 28 'is further promoted.
  • the motor 1500 is configured so that the magnetic circuit starts to close again when the magnets 17 and 18 rotate 60 degrees or more from the initial position (see FIG. 15D).
  • the magnet 1504 since the magnet 1504 is located slightly closer to the magnet 18 and the magnetic poles thereof are slightly opposite each other, an attractive force acts between the magnet 1504 and the magnet 18 although it is weak. This is the direction opposite to the direction of rotation of the yoke.
  • the magnetic circuit 4 ′ pulls the rotary yoke 28 ′ and closes the circuit acts clockwise, and the attractive force acting between the magnet 1502 and the magnet 18 also causes the gear 1104 to rotate. work. Therefore, even in the state shown in FIG. 15D, the force acts in the direction in which the rotating yoke is rotated clockwise.
  • a magnet is provided on the peripheral edge of the gear connected to the opening and closing of the magnetic circuit, the angle formed by the arc of the arc-shaped magnet installed on the rotor, the rotor and the magnetic circuit
  • the force required to open and close the switch can be reduced by repelling and attracting the magnet provided on the gear and the magnet of the rotor in a timely manner.
  • Such a magnetic circuit open / close assist mechanism does not hinder the basic operation of the motor according to the present invention as much as possible by obtaining the rotational force by opening and closing the magnetic circuit in accordance with the rotation of the magnet of the rotor. It has the advantage of reducing the force required for opening and closing.
  • the magnetic circuit open / close assist mechanism has an elongated hook 1604 that extends to the left and right from the axial force of the rotary yoke 28 via a ratchet 1602, and a magnet that is attached to one end of the hook 1604. 1606, a non-magnetic weight 1608 attached to the other end of the collar 1604 to balance it, and a pin 1610 for restricting the rotational movement of the magnet 1606. In addition, a pin 1612 for restricting the rotational movement of the weight 1608 may be provided.
  • the ratchet 1602 transmits only the rotational force in one direction to the shaft of the rotary yoke 28. In FIG. 16, this direction is clockwise, and when the heel 1604 rotates counterclockwise, it rotates without transmitting any force to the shaft.
  • the magnet 1606 is attached such that the magnetic pole faces the rotor magnet. Magnet 1606 is small and does not have to be a strong magnet.
  • the operation of the magnetic circuit open / close assist mechanism (1602 to 1612) will be described.
  • the magnet 1606 is stationary at a predetermined position close to the rotor 2 (FIG. 16A).
  • the magnet 17 of the rotor 2 approaches due to the rotation of the rotor 2, the magnet 1606 and the magnet 17 repel each other, and the repulsive force gives a rotational force to the rotary yoke 28 via the ratchet 1602 (FIG. 16B).
  • the opening / closing mechanism of the magnetic circuit 4 is not the opening / closing auxiliary mechanism (1602 to 1612) introduced here! . Any mechanism can be used as the opening / closing mechanism of the magnetic circuit 4, including the mechanism already disclosed in this specification.
  • the force required to open the switch can be reduced by repeating the repetitive movement of the hook and ratchet of the switch in synchronism with the magnet of the approaching rotor.
  • the mechanism for opening and rotating the opening / closing element may be any means including the mechanisms already disclosed in the present specification, such as a method using a gear, a belt, and a pulley linked to the rotor.
  • the number of magnets provided in the rotor is not limited.
  • FIG. 1 is a diagram schematically showing the structure of a motor 100 that is an example of a motor according to the present invention.
  • FIGS. 2A to F are diagrams for explaining the operation of the motor 100.
  • FIG. 2A to F are diagrams for explaining the operation of the motor 100.
  • FIGS. 2A to F are diagrams for explaining the operation of the motor 100.
  • FIG. 2A to F are diagrams for explaining the operation of the motor 100.
  • FIG. 3 is a diagram schematically showing the structure of a motor 300 that is another embodiment of the present invention.
  • FIG. 4 is a plan perspective view of a motor 500 according to another embodiment of the present invention.
  • FIG. 5 is a view on arrow A in FIG.
  • FIG. 6 is a view for explaining an opening / closing mechanism of magnetic circuits 3 to 6;
  • FIG. 7 is a diagram for explaining an example of an opening / closing assist mechanism for magnetic circuits 3 to 6;
  • FIG. 8 is a diagram for explaining the operation of a motor 500.
  • FIG. 9 is a diagram for explaining the operation of a motor 500.
  • FIG. 10 is a diagram for explaining a modified example of the motor 500.
  • FIG. 11 is a diagram for explaining another modified example of the motor 500.
  • FIG. 12 is a diagram for explaining still another modified example of the motor 500.
  • FIG. 13 is a view for explaining still another modified example of the motor 500.
  • FIG. 14 is a schematic drawing of a generator included in the present invention.
  • FIGS. 15A to 15D are views for explaining another embodiment of the opening / closing assist mechanism of the magnetic circuit.
  • FIGS. 15A to 15D are diagrams for explaining another embodiment of the opening / closing assist mechanism of the magnetic circuit.
  • FIGS. 15A to 15D are views for explaining another embodiment of the magnetic circuit open / close assist mechanism.
  • FIGS. 15A to 15D are diagrams for explaining another embodiment of the opening / closing assist mechanism of the magnetic circuit.
  • FIG. 16 is a view for explaining still another embodiment of the magnetic circuit open / close assist mechanism.

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

Abstract

L'invention concerne, selon un mode de réalisation, un moteur comportant un rotor doté d'un aimant et un stator doté d'un circuit magnétique pouvant être ouvert et fermé ou, selon un autre mode de réalisation, un moteur comportant un rotor doté d'un circuit magnétique pouvant être ouvert et fermé et un stator doté d'un aimant. Le circuit magnétique est configuré pour être ouvert et fermé par la rotation du rotor. Lorsque l'aimant et le circuit magnétique du rotor et du stator sont à proximité l'un de l'autre, le pôle magnétique de l'aimant du rotor ou du stator et celui de l'aimant du circuit magnétique sont conçus pour être en regard l'un de l'autre. Il est donc possible d'obtenir une rotation continue et prolongée du moteur avec une faible consommation d'énergie.
PCT/JP2007/063734 2006-07-13 2007-07-10 Moteur WO2008007668A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2006-192827 2006-07-13
JP2006192827 2006-07-13
JP2006-253851 2006-09-20
JP2006253851A JP3979503B1 (ja) 2006-07-13 2006-09-20 モータ

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WO2008007668A1 true WO2008007668A1 (fr) 2008-01-17

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JP (1) JP3979503B1 (fr)
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54126917A (en) * 1978-03-27 1979-10-02 Seiko Instr & Electronics Ltd Driving device for electronic time piece
JP2006304584A (ja) * 2004-07-21 2006-11-02 Citizen Watch Co Ltd 磁気ドライブ機構

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54126917A (en) * 1978-03-27 1979-10-02 Seiko Instr & Electronics Ltd Driving device for electronic time piece
JP2006304584A (ja) * 2004-07-21 2006-11-02 Citizen Watch Co Ltd 磁気ドライブ機構

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JP3979503B1 (ja) 2007-09-19

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