WO2005031953A2 - Apparatus for generating power from permanent magnet - Google Patents

Apparatus for generating power from permanent magnet Download PDF

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Publication number
WO2005031953A2
WO2005031953A2 PCT/KR2004/002430 KR2004002430W WO2005031953A2 WO 2005031953 A2 WO2005031953 A2 WO 2005031953A2 KR 2004002430 W KR2004002430 W KR 2004002430W WO 2005031953 A2 WO2005031953 A2 WO 2005031953A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotation plate
piston
permanent magnets
permanent magnet
magnetic shielding
Prior art date
Application number
PCT/KR2004/002430
Other languages
French (fr)
Inventor
Tae-Seob Maeng
Original Assignee
Tae-Seob Maeng
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 Tae-Seob Maeng filed Critical Tae-Seob Maeng
Publication of WO2005031953A2 publication Critical patent/WO2005031953A2/en

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/10—Alleged perpetua mobilia
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K99/00—Subject matter not provided for in other groups of this subclass
    • H02K99/20—Motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/006—Motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/008—Alleged electric or magnetic perpetua mobilia

Definitions

  • the present invention relates to an apparatus for generating motive power, and more particularly to an apparatus for generating motive power using permanent magnets by moving a piston back and forth using attractive and repulsive forces of permanent magnets, in which a magnetic shielding plate is provided to minimize force required to overcome a magnetic force impeding the change of poles of the permanent magnets which face the piston.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus for generating motive power using permanent magnets, which includes a magnetic shielding plate that is inserted between the rotation plate " magnets and the piston magnet when the rotation plate magnets rotate to change the piston-facing poles of the rotation plate magnets, so that a magnetic force exerted during the change of the piston-facing poles of the rotation plate permanent magnets is removed to reduce the force required to change the piston-facing poles . It is another object of the present invention to provide an apparatus for generating motive power using permanent magnets, which minimizes the force required to change the piston-facing poles of the rotation plate permanent magnets by means of rotational movement .
  • an apparatus for generating motive power using permanent magnets comprising: a motive power generator including a cylinder body and a piston permanent magnet, the cylinder body being in the form of a hollow tube with a slit formed at a portion thereof, the piston permanent magnet being provided in the cylinder body so that the piston permanent magnet moves back and forth in the cylinder body by magnetic force, the piston permanent magnet including a connection bar protruding through the slit in the cylinder body, the connection bar being connected to an external device to transfer motive power to the external device; rotation plates provided on a rotation shaft at both sides of the motive power generator, each of the rotation plates including a plurality of permanent magnets with opposite magnetic pole orientations, the rotation plate permanent magnets being equally spaced from each other on the rotation plate at positions thereof which correspond to the piston permanent magnet in the cylinder body, so that the piston permanent magnet moves back and forth by attractive and repulsive forces exerted between the rotation plate permanent magnets and the piston
  • the apparatus further comprises a power transfer portion including first and second eccentric gears provided on a drive shaft coupled to the drive motor .
  • the first and second eccentric gears operate to rotate a magnetic shielding plate drive gear and a rotation plate drive gear, respectively, in opposite directions, and as the drive motor rotates, the first and second eccentric gears rotate 180 degrees alternately to rotate the magnetic shielding plate drive gear and the rotation plate drive gear alternately.
  • a sensor is provided on the cylinder body at a position thereof where a permanent magnet on the rotation plate arrives at the cylinder body, and a sensor is provided on the cylinder body at a position thereof where the magnetic shielding plate arrives at the cylinder body.
  • the rotation plate and the magnetic shielding plate systematically operate such that if the sensor detects a permanent magnet of the rotation plate, the magnetic shielding plate is rotated and the rotation plate is stopped, and if the sensor detects the magnetic shielding plate, the rotation plate is rotated and the magnetic shielding plate is stopped.
  • the magnetic shielding plate is provided at either end of the cylinder body so that the magnetic shielding plate is inserted into and removed from the gap between the rotation plate permanent magnets and the piston permanent magnet according to locations of .the rotation plate permanent magnets and the piston permanent magnet.
  • Fig. 1 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to an embodiment of the present invention
  • Fig. 2 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to another embodiment of the present invention
  • Fig. 3 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to yet another embodiment of the present invention.
  • Fig. 1 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to an embodiment of the present invention.
  • the motive power generation apparatus uses conventional permanent magnets, which have N and S poles exerting a magnetic force therebetween, to cause reciprocating motion (i.e., back-and-forth motion) and obtain motive power.
  • the motive power generation apparatus includes a motive power generator 10, rotation plates 26, a magnetic shielding plate 30, and a drive portion 20.
  • the motive power generator 10 includes a cylinder body 14 and a piston permanent magnet 18.
  • the cylinder body 14 is in the form of a hollow tube with a slit 12 formed at a portion thereof.
  • the piston permanent magnet 18 is provided in the cylinder body 14 so that the piston permanent magnet 18 moves back and forth in the cylinder body 14 by magnetic force exerted by the drive portion 20.
  • the piston permanent magnet 18 includes a connection bar 16 protruding through the slit 12 in the cylinder body 14.
  • the connection bar 16 is connected to an external device to transfer motive power to the external device .
  • the rotation plates 26 are provided on a rotation shaft 22 at both sides of the motive power generator 10. Each of the rotation plates 26 includes a plurality of permanent magnets 24 with opposite magnetic pole orientations.
  • the rotation plate permanent magnets 24 are equally spaced from each other on the rotation plate 26 at positions thereof which correspond to the piston permanent magnet 18 in the cylinder body 14, so that the piston permanent magnet 18 moves back and forth by attractive and repulsive forces exerted between the rotation plate permanent magnets 24 and the piston permanent magnet 18.
  • the magnetic shielding plate 30 is provided between the cylinder body 14 and the rotation plate permanent magnets 24 so that the magnetic shielding plate 30 is alternately inserted into and withdrawn from the gap between the cylinder body 14 and the rotation plate permanent magnets 24 as the rotation shaft 22 rotates.
  • the drive portion 20 includes a drive motor M for driving the rotation plate permanent magnets 24 and the magnetic shielding plate 30.
  • the magnetic shielding plate 30 When the piston-facing poles of the rotation plate permanent magnets 24 are changed, the magnetic shielding plate 30 is withdrawn from the gap between the rotation plate permanent magnets 24 and the piston permanent magnet 18 to allow magnetic force to act therebetween, so that the piston permanent magnet 18 moves in the opposite direction due to the changed piston-facing poles. Then, if the magnetic shielding plate 30 is again inserted between the rotation plate permanent magnets 24 and the piston permanent magnet 18 to shield the magnetic force therebetween, the rotation plate 26 rotates to again change the piston-facing poles of the rotation plate permanent magnets 24.
  • FIG. 2 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to another embodiment of the present invention.
  • a drive motor M has two shafts at both sides thereof so that the rotation plate 26 and the magnetic shielding plate 30 are located accurately in position through mechanical component arrangement.
  • two eccentric gears 45 and 46 are provided on a drive shaft 41 coupled to the drive motor M.
  • the two eccentric gears 45 and 46 operate to rotate a magnetic shielding plate drive gear 44 and a rotation plate drive gear 42, respectively, in opposite directions.
  • the two eccentric gears 45 and 46 rotate 180 degrees alternately to rotate the magnetic shielding plate drive gear 44 and the rotation plate drive gear 42 alternately. Accordingly, while the rotation plate rotates, the magnetic shielding plate is inserted between the cylinder and the rotation plate, and if the rotation plate completes rotation, the magnetic shielding plate starts rotating to exit the gap between the cylinder and the rotation plate, thereby allowing magnetic force to act therebetween.
  • FIG. 3 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to yet another embodiment of the present invention.
  • a sensor 50 is provided on a cylinder at a position thereof where a permanent magnet on the rotation plate 26 arrives at the cylinder, and a sensor 50a is provided on the cylinder at a position thereof where the magnetic shielding plate 30 arrives at the cylinder.
  • the rotation plate 26 and the magnetic shielding plate 30 systematically operate in the following manner. If the sensor 50 detects a permanent magnet of the rotation plate 26, the magnetic shielding plate 30 is rotated and the rotation plate 26 is stopped. If the sensor 50a detects the magnetic shielding plate 30, the rotation plate 26 is rotated and the magnetic shielding plate 30 is stopped.
  • magnetic shielding plates are provided at both ends of a cylinder containing a piston permanent magnet so that the magnetic shielding plate is inserted into and removed from the gap between permanent magnets on a rotation plate and the piston permanent magnet according to locations of the rotation plate permanent magnets and the piston permanent magnet.
  • the magnetic shielding plate is provided to remove a magnetic force exerted when changing the piston-facing poles of the rotation plate permanent magnets to cause the piston to reciprocate by attractive and repulsive magnetic forces, thereby making it possible to reduce the force required to change the piston-facing poles.
  • the piston-facing poles of the rotation plate permanent magnets are changed through rotational movement, thereby making it possible to continuously " alternate the piston-facing poles.
  • the rotational position of the rotation plate and the magnetic shielding plate can be controlled more accurately using detection sensors, which are electronic elements, thereby enabling more rapid and accurate reciprocating motion of the piston permanent magnet.
  • magnetic shielding plates are provided at both ends of the cylinder, respectively, so as to minimize the distance between the rotation plate permanent magnets and the piston permanent magnet, thereby maximizing attractive and repulsive magnetic forces between the rotation plate permanent magnets and the piston permanent magnet .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Description

APPARATUS FOR GENERATING POWER FROM PERMANENT MAGNET
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to an apparatus for generating motive power, and more particularly to an apparatus for generating motive power using permanent magnets by moving a piston back and forth using attractive and repulsive forces of permanent magnets, in which a magnetic shielding plate is provided to minimize force required to overcome a magnetic force impeding the change of poles of the permanent magnets which face the piston.
Description of the Related Art There has been proposed an apparatus for causing reciprocating motion of a piston by attractive and repulsive forces of permanent magnets, in which poles of the permanent magnets, which face the piston, are alternated to exert alternating attractive and repulsive forces on the piston. However, a large force is required to overcome a magnetic force impeding the change of the piston-facing poles of the permanent magnets, which leads to loss of motive power. Poles of permanent magnets on a rotation plate, which face a piston permanent magnet, must be alternated to move the piston permanent magnet back and forth by attractive and repulsive forces exerted between the piston permanent magnet and the rotation plate permanent magnets. The alternation of the piston-facing poles of the rotation plate permanent magnets requires a large force for overcoming an impeding magnetic force, which is exerted between the piston permanent magnet and the rotation plate permanent magnets during the change of the piston-facing poles of the rotation plate permanent magnets .
SUMMARY OF THE INVENTION
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus for generating motive power using permanent magnets, which includes a magnetic shielding plate that is inserted between the rotation plate" magnets and the piston magnet when the rotation plate magnets rotate to change the piston-facing poles of the rotation plate magnets, so that a magnetic force exerted during the change of the piston-facing poles of the rotation plate permanent magnets is removed to reduce the force required to change the piston-facing poles . It is another object of the present invention to provide an apparatus for generating motive power using permanent magnets, which minimizes the force required to change the piston-facing poles of the rotation plate permanent magnets by means of rotational movement . It is still another object of the present invention to provide an apparatus for generating motive power using permanent magnets, in which the rotation plate and the magnetic shielding plate interwork to operate alternately through a mechanical mechanism, thereby continuously and repeatedly alternating the piston-facing poles of the rotation plate permanent magnets. It is yet another object of the present invention to provide an apparatus for generating motive power using permanent magnets, in which the rotation plate and the magnetic shielding plate are driven according to their positions using sensors so that the rotation plate and the magnetic shielding plate are rotated alternately. In accordance with the present invention, the above and other objects can be accomplished by the provision of an apparatus for generating motive power using permanent magnets, the apparatus comprising: a motive power generator including a cylinder body and a piston permanent magnet, the cylinder body being in the form of a hollow tube with a slit formed at a portion thereof, the piston permanent magnet being provided in the cylinder body so that the piston permanent magnet moves back and forth in the cylinder body by magnetic force, the piston permanent magnet including a connection bar protruding through the slit in the cylinder body, the connection bar being connected to an external device to transfer motive power to the external device; rotation plates provided on a rotation shaft at both sides of the motive power generator, each of the rotation plates including a plurality of permanent magnets with opposite magnetic pole orientations, the rotation plate permanent magnets being equally spaced from each other on the rotation plate at positions thereof which correspond to the piston permanent magnet in the cylinder body, so that the piston permanent magnet moves back and forth by attractive and repulsive forces exerted between the rotation plate permanent magnets and the piston permanent magnet; a magnetic shielding plate provided between the cylinder body and the rotation plate permanent magnets so that the magnetic shielding plate is alternately inserted into and withdrawn from a gap between the cylinder body and the rotation plate permanent magnets as the rotation shaft rotates, wherein while the rotation plate rotates to change piston-facing poles of the rotation plate permanent magnets which face the piston permanent magnet, the magnetic shielding plate is inserted between the cylinder body and the rotation plate permanent magnets to shield magnetic force between the rotation plate permanent magnets and the piston permanent magnet, and after the piston-facing poles of the rotation plate permanent magnets are changed, the magnetic shielding plate is removed from the gap between the cylinder body and the rotation plate permanent magnets to allow magnetic force to act between the rotation plate permanent magnets and the piston permanent magnet so that the piston permanent magnet moves back and forth by attractive and repulsive forces; and a drive portion including a drive motor for driving the rotation plate permanent magnets and the magnetic shielding plate. Preferably, the apparatus further comprises a power transfer portion including first and second eccentric gears provided on a drive shaft coupled to the drive motor . The first and second eccentric gears operate to rotate a magnetic shielding plate drive gear and a rotation plate drive gear, respectively, in opposite directions, and as the drive motor rotates, the first and second eccentric gears rotate 180 degrees alternately to rotate the magnetic shielding plate drive gear and the rotation plate drive gear alternately. Preferably, a sensor is provided on the cylinder body at a position thereof where a permanent magnet on the rotation plate arrives at the cylinder body, and a sensor is provided on the cylinder body at a position thereof where the magnetic shielding plate arrives at the cylinder body. The rotation plate and the magnetic shielding plate systematically operate such that if the sensor detects a permanent magnet of the rotation plate, the magnetic shielding plate is rotated and the rotation plate is stopped, and if the sensor detects the magnetic shielding plate, the rotation plate is rotated and the magnetic shielding plate is stopped. As the rotation plate and the magnetic shielding plate rotate alternately, the piston-facing poles of the rotation plate permanent magnets are alternated and the magnetic shielding plate alternately shields the magnetic force. Preferably, the magnetic shielding plate is provided at either end of the cylinder body so that the magnetic shielding plate is inserted into and removed from the gap between the rotation plate permanent magnets and the piston permanent magnet according to locations of .the rotation plate permanent magnets and the piston permanent magnet.
BRIEF DESCRIPTION OF THE DRAWING
Fig. 1 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to an embodiment of the present invention; Fig. 2 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to another embodiment of the present invention; and Fig. 3 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to yet another embodiment of the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENTS
Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings . Fig. 1 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to an embodiment of the present invention. The motive power generation apparatus uses conventional permanent magnets, which have N and S poles exerting a magnetic force therebetween, to cause reciprocating motion (i.e., back-and-forth motion) and obtain motive power. As shown in Fig. 1, the motive power generation apparatus includes a motive power generator 10, rotation plates 26, a magnetic shielding plate 30, and a drive portion 20. The motive power generator 10 includes a cylinder body 14 and a piston permanent magnet 18. The cylinder body 14 is in the form of a hollow tube with a slit 12 formed at a portion thereof. The piston permanent magnet 18 is provided in the cylinder body 14 so that the piston permanent magnet 18 moves back and forth in the cylinder body 14 by magnetic force exerted by the drive portion 20. The piston permanent magnet 18 includes a connection bar 16 protruding through the slit 12 in the cylinder body 14. The connection bar 16 is connected to an external device to transfer motive power to the external device . The rotation plates 26 are provided on a rotation shaft 22 at both sides of the motive power generator 10. Each of the rotation plates 26 includes a plurality of permanent magnets 24 with opposite magnetic pole orientations. The rotation plate permanent magnets 24 are equally spaced from each other on the rotation plate 26 at positions thereof which correspond to the piston permanent magnet 18 in the cylinder body 14, so that the piston permanent magnet 18 moves back and forth by attractive and repulsive forces exerted between the rotation plate permanent magnets 24 and the piston permanent magnet 18. The magnetic shielding plate 30 is provided between the cylinder body 14 and the rotation plate permanent magnets 24 so that the magnetic shielding plate 30 is alternately inserted into and withdrawn from the gap between the cylinder body 14 and the rotation plate permanent magnets 24 as the rotation shaft 22 rotates. Specifically, while the rotation plate 26 rotates to change magnetic poles of the rotation plate permanent magnets 24 which face the piston permanent magnet 18, the magnetic shielding plate 30 is inserted between the cylinder body 14 and the rotation plate permanent magnets 24 to shield magnetic force between the rotation plate permanent magnets 24 and the piston permanent magnet 18. After the piston-facing poles of the rotation plate permanent magnets 24 are changed, the magnetic shielding plate 30 is removed from the gap between the cylinder body 14 and the rotation plate permanent magnets 24 to allow magnetic force to act between the rotation plate permanent magnets 24 and the piston permanent magnet 18 so that the piston permanent magnet 18 moves back and forth by attractive and repulsive forces. The drive portion 20 includes a drive motor M for driving the rotation plate permanent magnets 24 and the magnetic shielding plate 30. A detailed description will now be given of how the motive power generation apparatus configured as described above operates according to the present invention. As the rotation plate 24 rotates, alternating magnetic poles of the rotation plate permanent magnets 24 face the piston permanent magnet 18 in the cylinder 14, exerting alternating attractive and repulsive forces on the piston permanent magnet 18 so that the piston permanent magnet 18 moves back and forth. When the rotation plate 26 rotates to change the piston- facing poles of the rotation plate permanent magnets 24, the magnetic shielding plate 30 is inserted between the rotation plate permanent magnets 24 and the piston permanent magnet 18 to shield the magnetic force therebetween. This allows the piston-facing poles of the rotation plate permanent magnets 24 to be changed with a small force and without influence of the magnetic force. When the piston-facing poles of the rotation plate permanent magnets 24 are changed, the magnetic shielding plate 30 is withdrawn from the gap between the rotation plate permanent magnets 24 and the piston permanent magnet 18 to allow magnetic force to act therebetween, so that the piston permanent magnet 18 moves in the opposite direction due to the changed piston-facing poles. Then, if the magnetic shielding plate 30 is again inserted between the rotation plate permanent magnets 24 and the piston permanent magnet 18 to shield the magnetic force therebetween, the rotation plate 26 rotates to again change the piston-facing poles of the rotation plate permanent magnets 24. If the piston-facing poles of the rotation plate permanent magnets 24 are changed again, the magnetic shielding plate is again withdrawn from the gap between the rotation plate permanent magnets 24 and the piston permanent magnet 18, allowing magnetic force of the changed poles to be exerted on the piston permanent magnet 18, so that the piston permanent magnet 18 again moves in the opposite direction. If such an operation is repeated, the piston permanent magnet 18 repeatedly moves back and forth, thereby converting electricity to motive power. Fig. 2 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to another embodiment of the present invention. In this embodiment, a drive motor M has two shafts at both sides thereof so that the rotation plate 26 and the magnetic shielding plate 30 are located accurately in position through mechanical component arrangement. In a power transfer portion 40, two eccentric gears 45 and 46 are provided on a drive shaft 41 coupled to the drive motor M. The two eccentric gears 45 and 46 operate to rotate a magnetic shielding plate drive gear 44 and a rotation plate drive gear 42, respectively, in opposite directions. As the motor M rotates, the two eccentric gears 45 and 46 rotate 180 degrees alternately to rotate the magnetic shielding plate drive gear 44 and the rotation plate drive gear 42 alternately. Accordingly, while the rotation plate rotates, the magnetic shielding plate is inserted between the cylinder and the rotation plate, and if the rotation plate completes rotation, the magnetic shielding plate starts rotating to exit the gap between the cylinder and the rotation plate, thereby allowing magnetic force to act therebetween. If the magnetic shielding plate rotates 360 degrees to again shield magnetic force between the cylinder and the rotation plate, the rotation plate restarts rotating to change the piston-facing poles of the rotation plate permanent magnets. As described above, as the rotation plate rotates, the piston-facing poles of the rotation plate permanent magnets alternate, so that alternating attractive and repulsive magnetic forces are exerted on the piston permanent magnet, causing the piston permanent magnet to move back and forth. Fig. 3 is a schematic diagram illustrating an apparatus for generating motive power using permanent magnets according to yet another embodiment of the present invention. In this embodiment, a sensor 50 is provided on a cylinder at a position thereof where a permanent magnet on the rotation plate 26 arrives at the cylinder, and a sensor 50a is provided on the cylinder at a position thereof where the magnetic shielding plate 30 arrives at the cylinder. The rotation plate 26 and the magnetic shielding plate 30 systematically operate in the following manner. If the sensor 50 detects a permanent magnet of the rotation plate 26, the magnetic shielding plate 30 is rotated and the rotation plate 26 is stopped. If the sensor 50a detects the magnetic shielding plate 30, the rotation plate 26 is rotated and the magnetic shielding plate 30 is stopped. As the rotation plate 26 and the magnetic shielding plate 30 rotate alternately, the piston-facing poles of the rotation plate permanent magnets are alternated and the magnetic shielding plate 30 alternately shields the magnetic force. In another embodiment, magnetic shielding plates are provided at both ends of a cylinder containing a piston permanent magnet so that the magnetic shielding plate is inserted into and removed from the gap between permanent magnets on a rotation plate and the piston permanent magnet according to locations of the rotation plate permanent magnets and the piston permanent magnet.
Industrial Applicability The magnetic shielding plate is provided to remove a magnetic force exerted when changing the piston-facing poles of the rotation plate permanent magnets to cause the piston to reciprocate by attractive and repulsive magnetic forces, thereby making it possible to reduce the force required to change the piston-facing poles. In addition, the piston-facing poles of the rotation plate permanent magnets are changed through rotational movement, thereby making it possible to continuously" alternate the piston-facing poles. Further, the rotational position of the rotation plate and the magnetic shielding plate can be controlled more accurately using detection sensors, which are electronic elements, thereby enabling more rapid and accurate reciprocating motion of the piston permanent magnet. Furthermore, magnetic shielding plates are provided at both ends of the cylinder, respectively, so as to minimize the distance between the rotation plate permanent magnets and the piston permanent magnet, thereby maximizing attractive and repulsive magnetic forces between the rotation plate permanent magnets and the piston permanent magnet .

Claims

WHAT IS CLAIMED IS:
1. An apparatus for generating motive power using permanent magnets, the apparatus comprising: a motive power generator including a cylinder body and a piston permanent magnet, the cylinder body being in the form of a hollow tube with a slit formed at a portion thereof, the piston permanent magnet being provided in the cylinder body so that the piston permanent magnet moves back and forth in the cylinder body by magnetic force, the piston permanent magnet including a connection bar protruding through the slit in the cylinder body, the connection bar being connected to an external device to transfer motive power to the external device; rotation plates provided on a rotation shaft at both sides of the motive power generator, each of the rotation plates including a plurality of permanent magnets " with opposite magnetic pole orientations, the rotation plate permanent magnets being equally spaced from each other on the rotation plate at positions thereof which correspond to the piston permanent magnet in the cylinder body, so that the piston permanent magnet moves back and forth by attractive and repulsive forces exerted between the rotation plate permanent magnets and the piston permanent magnet; a magnetic shielding plate provided between the cylinder body and the rotation plate permanent magnets so that the magnetic shielding plate is alternately inserted into and withdrawn from a gap between the cylinder body and the rotation plate permanent magnets as the rotation shaft rotates, wherein while the rotation plate rotates to change piston-facing poles of the rotation plate permanent magnets which face the piston permanent magnet, the magnetic shielding plate is inserted between the cylinder body and the rotation plate permanent magnets to shield magnetic force between the rotation plate permanent magnets and the piston permanent magnet, and after the piston-facing poles of the rotation plate permanent magnets are changed, the magnetic shielding plate is removed from the gap between the cylinder body and the rotation plate permanent magnets to allow magnetic force to act between the rotation plate permanent magnets and the piston permanent magnet so that the piston permanent magnet moves back and forth by attractive and repulsive forces; and a drive portion including a drive motor for driving the rotation plate permanent magnets and the magnetic shielding plate.
2. The apparatus as set forth in claim 1, further comprising a power transfer portion including first and second eccentric gears provided on a drive shaft coupled to the drive motor, wherein the first and second eccentric gears operate to rotate a magnetic shielding plate drive gear and a rotation plate drive gear, respectively, in opposite directions, and as the drive motor rotates, the first and second eccentric gears rotate 180 degrees alternately to rotate the magnetic shielding plate drive gear and the rotation plate drive gear alternately.
3. The apparatus as set forth in claim 1, wherein a sensor is provided on the cylinder body at a position thereof where a permanent magnet on the rotation plate arrives at the cylinder body, and a sensor is provided on the cylinder body at a position thereof where the magnetic shielding plate arrives at the cylinder body, wherein the rotation plate and the magnetic shielding plate systematically operate such that if the sensor detects a permanent magnet of the rotation plate, the magnetic shielding plate is rotated and the rotation plate is stopped, and if the sensor detects the magnetic shielding plate, the rotation plate is rotated and the magnetic shielding plate is stopped, and wherein as the rotation plate and the magnetic shielding plate rotate alternately, the piston-facing poles of the rotation plate permanent magnets are alternated and the magnetic shielding plate alternately shields the magnetic force .
4. The apparatus as set forth in claim 1, wherein the magnetic shielding plate is provided at either end of the cylinder body so that the magnetic shielding plate is inserted into and removed from the gap between the rotation plate permanent magnets and the piston permanent magnet according to locations of the rotation plate permanent magnets and the piston permanent magnet .
PCT/KR2004/002430 2003-09-30 2004-09-22 Apparatus for generating power from permanent magnet WO2005031953A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030068026A KR100543961B1 (en) 2003-09-30 2003-09-30 Power generating apparatus used a permanent magnet
KR10-2003-0068026 2003-09-30

Publications (1)

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WO2005031953A2 true WO2005031953A2 (en) 2005-04-07

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WO (1) WO2005031953A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103780159A (en) * 2014-02-25 2014-05-07 哈密市金磁封环保科技有限公司 Magnetic rotor rotation magnetic pump machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101038981B1 (en) 2009-08-19 2011-06-03 박정일 power conversion equipment using magnetic shield and permanent magnet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103780159A (en) * 2014-02-25 2014-05-07 哈密市金磁封环保科技有限公司 Magnetic rotor rotation magnetic pump machine

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KR100543961B1 (en) 2006-01-23
KR20050031768A (en) 2005-04-06

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