WO2021256840A1 - Dispositif de production d'énergie à rendement accru - Google Patents

Dispositif de production d'énergie à rendement accru Download PDF

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Publication number
WO2021256840A1
WO2021256840A1 PCT/KR2021/007509 KR2021007509W WO2021256840A1 WO 2021256840 A1 WO2021256840 A1 WO 2021256840A1 KR 2021007509 W KR2021007509 W KR 2021007509W WO 2021256840 A1 WO2021256840 A1 WO 2021256840A1
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WO
WIPO (PCT)
Prior art keywords
magnetic body
force
rotating shaft
repulsive force
stator
Prior art date
Application number
PCT/KR2021/007509
Other languages
English (en)
Korean (ko)
Inventor
김종인
Original Assignee
김종인
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
Priority claimed from KR1020200129224A external-priority patent/KR20210155316A/ko
Application filed by 김종인 filed Critical 김종인
Publication of WO2021256840A1 publication Critical patent/WO2021256840A1/fr

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    • 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
    • H02K99/10—Generators
    • 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

Definitions

  • the present invention relates to a power generation device with improved output, and more particularly, by using a force (repulsive force) that pushes with the same polarity (repulsive force) and a force (strength) that pulls with different polarity generated by a stator magnetic body and a rotating magnetic body part
  • the present invention relates to a power generation device in which the overall output is improved by increasing the rotational force of the rotating shaft while offsetting the force applied to the rotating shaft by counter electromotive force.
  • the method of producing electric energy is produced through renewable energy using natural phenomena such as hydropower, wind power, tidal power, solar heat, thermal power generation using fuels such as coal and oil, or nuclear power plant using nuclear fission.
  • a floating pendulum is composed of a stator having a space and a permanent magnet installed inside the stator and rotated by external shaking (vibration).
  • the floating pendulum is an extended fan-shaped pendulum that is easily moved along the center of gravity due to the action of gravity.
  • a convex round weight is formed to have a constant weight to add additional rotational force to the motion force of the floating pendulum,
  • a power transmission unit is formed on the axis of the movement center of the ruler, and the stator is formed inside a round shape like the shape of the weight so that the weight of the floating pendulum can rotate as close as possible to three-dimensionally, and a coil is placed on the core formed on the inner surface of the stator. I am providing this installed configuration.
  • a convex round-shaped weight is formed to have a constant weight to add additional rotational force to the motion force of the floating pendulum on one side of a long arc formed, and a power transmission unit is formed on the central axis of movement of the floating pendulum and the stator is to form the inside of a round shape like the shape of the weight so that the weight of the floating pendulum can rotate as close as possible in three dimensions, and the coil is installed in the core formed on the inner surface.
  • a generator comprising a known rotor and a stator forms an induced electromotive force and generates electricity through rotation of the rotor, and a conventional generator generates power in a direction that reduces rotational force, that is, power generation.
  • a counter electromotive force is generated in the direction of obstruction.
  • Patent Document 0001 Republic of Korea Patent No. 10-0743571 (Registered on July 23, 2007)
  • the present invention has been devised to solve the above-mentioned problems, and using the force (repulsive force) that pushes with the same polarity and the force that pulls with different polarities (attractive force) generated by the stator magnetic body and the rotating magnetic body, the rotation shaft is rotated by the counter electromotive force of the generator.
  • An object of the present invention is to provide a power generation device in which the overall output is improved by increasing the rotational force of the rotating shaft portion while offsetting the force applied to the portion.
  • a power generation device with improved output comprising: a tubular stator magnetic body formed by magnetic force having the same polarity on one side of a generator; a rotating shaft part having one side connected to the generator and positioned on the central axis of the stator magnetic body, and a motor connected to the other side; and a rotating magnetic body formed in the rotating shaft to amplify the rotation of the rotating shaft by the magnetic force of the stator magnetic body.
  • the rotating magnetic body portion is formed of a magnetic material of the same polarity as the stator magnetic material on one side of the longitudinal direction of the rotating shaft portion; and a centrifugal weight formed on the other side in the longitudinal direction of the rotating part to generate a centrifugal force in response to the rotation of the rotating shaft part.
  • the magnetic rotor portion is extended from one side in the longitudinal direction of the rotation shaft portion, a first connection portion for connecting the magnetic portion; and a second connection part extending from the other side in the longitudinal direction of the rotation shaft part to connect the centrifugal weight.
  • the centrifugal weight is formed with a heavier weight than the magnetic body portion to form an eccentricity in the circumferential direction of the rotational direction to reduce the air resistance of the magnetic body portion.
  • the rotating magnetic body portion is formed of a magnetic material having the same polarity as the stator magnetic material on one side or corresponding both sides in the longitudinal direction of the rotating shaft portion; includes.
  • the magnetic body part constituting the stator magnetic body and the rotating magnetic body part is characterized in that it has the same number and the same shape corresponding to the armature and the stator of the generator.
  • the power generation device with improved output one side is connected to the generator and a rotating shaft of a set length and diameter; a stator magnetic body installed so as to surround the rotating shaft with a gap in an arc shape having a set thickness and width;
  • the rotating magnetic body is supported by the rotating shaft and rotates the same, but by using the stator magnetic body and the generated repulsive force to move the weight in the opposite direction to the repulsive force generating point to form an eccentricity in the circumferential direction of the rotating magnetic body part to amplify the rotation of the rotating shaft part;
  • the stator magnetic body has a set interval in the longitudinal direction of the rotation shaft portion, and the first stator magnetic body and the second stator magnetic body are separately installed and formed.
  • the rotating magnetic body portion is positioned to correspond to the first fixed magnetic material and includes an attractive force generating unit composed of a first magnetic body portion having an opposite polarity to generate an attractive force with the first fixed magnetic material, and a second fixed magnetic material positioned to correspond to the second fixed magnetic material and a repulsive force generating unit composed of a second magnetic body unit having the same polarity to generate a repulsive force;
  • the repulsive force generating unit in one embodiment, a hollow guide tube body having a set length by installing the rotating shaft portion perpendicular to the central axis, and a hollow of the guide tube body by the force generated while passing through the guide tube body It is possible to slide and move It includes a support having a set length and a second magnetic body integrally formed at both ends of the support body with a magnetic body having a weight.
  • the power generation device with improved output according to the present invention As described above, the power generation device with improved output according to the present invention,
  • the force applied to the rotating shaft part by the counter electromotive force of the generator using the force (repulsive force) that pushes with the same polarity and the force that pulls with different polarities (attraction) generated by the stator magnetic body and the rotating magnetic body part It has the effect of improving the overall output by increasing the rotational force of the rotating shaft part while offsetting.
  • the rotating shaft part by increasing the rotational force of the rotating shaft part, even in a simple structure in which the weight is reduced by arranging the magnetic body part rotated by magnetic force on one side of the rotating shaft part and the rotating magnetic body part in which the centrifugal weight is formed on the other side of the rotating shaft part inside the stator magnetic body, the rotating shaft It has the effect of increasing the output of the generator connected to one side of the negative.
  • the rotation shaft is also formed to have a predetermined diameter, thereby reducing the resistance of air, thereby increasing the rotational force of the rotating magnetic body.
  • FIG. 1 is a view showing a power generation device with improved output according to a first embodiment of the present invention.
  • FIG. 2 is a plan view illustrating FIG. 1 in a plan view.
  • FIG. 3 is a perspective view illustrating a rotating magnetic body part of a power generation device with improved output according to a first embodiment of the present invention.
  • FIG. 4 is a view showing a power generation device with improved output according to a second embodiment of the present invention.
  • FIG. 5 is a schematic diagram showing an example of a stator magnetic body constituting a power generation device with improved output according to a third embodiment of the present invention.
  • FIG. 6 is a schematic view showing an example of a rotating magnetic body part constituting a power generation device with improved output according to a third embodiment of the present invention.
  • Figure 1 shows a power generation device with improved output according to a first embodiment of the present invention.
  • Figure 2 is a plan view showing Figure 1 in a plane
  • Figure 3 is a first view of the present invention
  • the electric device 10 constitutes the motor 220 , the rotating shaft unit 200 , and the generator 210 , and generates power.
  • the force applied to the rotating shaft part 200 by the counter electromotive force of the machine 210 is offset or the rotating shaft
  • the stator magnetic body 100 and the rotating magnetic body part 300 are provided to increase the rotational force of the part 200 .
  • Power generation device 10 one side is connected to the generator 210, and the motor 220 on the other side
  • the set length and diameter of the rotary shaft part 200 and the generator 210 are the same as each other on one side of the connected
  • stator magnetic body 100 of the stator magnetic body 100 constituting the stator magnetic body 100 of the stator magnetic body 100
  • It includes a rotating magnetic body unit 300 formed on the rotating shaft unit 200 to amplify the rotation.
  • the stator magnetic body 100 has a magnetic force with the same polarity on the inside.
  • the stator magnetic body 100 has a shape surrounding the rotating shaft part 200 as a central axis.
  • stator magnetic body 100 has a cylindrical shape spaced apart from each other and disposed to face each other.
  • stator magnetic material 100 is to produce kinetic energy, surrounding the outer surface
  • cover body (C) is a cylinder with both ends closed and surrounding the stator magnetic body (100).
  • It may be made in the shape of a square or rectangular box.
  • cover body (C) is formed with a hole through which the portion in which the rotating shaft portion 200 is located,
  • a bearing may be formed along the inner circumferential surface of the hole.
  • the rotating shaft part 200 has one side connected to the generator 210,
  • the motor 220 Located on the central axis of the stator magnetic body 100, the motor 220 is connected to the other side.
  • the rotation shaft 200 is formed of a lightweight shaft having a set length and diameter.
  • the rotating shaft unit 200 is a station that generates an induced electromotive force inside the generator 210 .
  • the generator 210 is generally a rotor including a permanent magnet or an electromagnet
  • stator including a winding in which an induced electromotive force is generated when the rotor rotates.
  • the generator 210 is larger than the diameter of the stator magnetic body 100 in the drawings of this specification.
  • the rotor is one side of the rotating shaft part 200, and the rotation of the rotating shaft part 200 is
  • An induced electromotive force may be obtained from the generator 210 by electric power.
  • the rotating magnetic body part 300 to be described later is formed on the rotating shaft part 200 .
  • the motor 220 is connected to the other side of the rotating shaft unit 200 and serves to rotate the rotating shaft unit 200 in one direction.
  • the motor 220 receives external power to provide rotational force, and the rotation shaft
  • It may further include a control unit for reducing the stopping or rotational force.
  • the rotating magnetic body part 300 responds to the magnetic force of the stator magnetic body 100 .
  • the rotating magnetic body part 300 further includes a magnetic body part 310 and a centrifugal weight 320 .
  • the magnetic body part 310 is the same as the stator magnetic body 100 on one side in the longitudinal direction of the rotating shaft part 200 .
  • It is formed from a magnetic material of one polarity.
  • the magnetic body 310 extends in the longitudinal direction, and is located inside the stator magnetic body 100 .
  • teeth are located adjacent to each other and the repulsive force acts by the magnetic force of the same polarity.
  • the force may increase the rotational force.
  • Centrifugal weight 320 is formed on the other side of the longitudinal direction of the rotation shaft portion 200 of the rotation shaft portion (200).
  • the centrifugal weight 320 has the same or heavier weight than the magnetic body 310 .
  • the centrifugal weight 320 is opposite the magnetic body 310 with the rotating shaft 200 interposed therebetween.
  • stator magnetic body 100 It is positioned while looking, extending in the longitudinal direction and positioned adjacent to the inner side of the stator magnetic body 100 .
  • centrifugal weight 320 is a magnetic body by centrifugal force due to the rotation of the rotating shaft unit 200 .
  • the electromagnetic part 300 includes a first connection part 311 and a second connection part 321 .
  • the first connection part 311 is extended from one side in the longitudinal direction of the rotation shaft part 200 and is a magnetic material.
  • the first connection part 311 is formed as a lightweight shaft having a predetermined diameter.
  • the second connection part 321 is extended from the other side in the longitudinal direction of the rotation shaft part 200 and is centrifugal.
  • the weight 320 is connected.
  • a battery 400 may be further included.
  • the battery 400 is to charge the electromotive force generated from the generator 210, and rotates
  • a converter that converts energy into electrical energy may be provided.
  • the battery 400 further includes a plurality of terminals to apply power to the portable electronic device.
  • Figure 4 shows a power generation device with improved output according to the second embodiment of the present invention.
  • the power generation device 10 with improved output of the present invention, one side of the power generation
  • the rotary shaft part 200 of the set length and diameter connected to the machine 210 and the motor 220 connected to the other side
  • the rotating shaft is made of a magnetic material having a magnetic force with the same polarity.
  • stator magnetic body 100 surrounding the part 200 as a central axis; Chair of the stator magnetic body (100)
  • the body part 300 is configured to include.
  • the generator 210 rotates by counter electromotive force, as described in the prior art.
  • the opposite direction that is, the direction in which the shaft 200 reduces the rotational force (torque), that is, the direction that prevents the power generation
  • a force to rotate in the direction is generated.
  • the rotation shaft 200 by this counter electromotive force is to rotate in the opposite direction.
  • stator magnetic body 100 constitutes the stator magnetic body 100 and the rotating magnetic body part 300 to offset the force.
  • the rotating magnetic body part 300 is, referring to FIG. 4 , the rotating shaft part 200 .
  • stator magnetic body 100 is formed to have an N pole, and the magnetic body part 310 is also
  • stator magnetic body 100 and the rotating magnetic body part 300 of the same polarity are continuously
  • the part 200 has a force that the stator magnetic body 100 and the rotating magnetic body part 300 try to repel each other.
  • the rotation is caused by the force of the stator magnetic body 100 and the rotating magnetic body part 300 to repel each other.
  • the increased rotational force of the rotating shaft part 200 is a counter electromotive force during the power generation process of the generator 210 .
  • the shaft 200 overcomes the force caused by the back electromotive force and has a continuous rotational force.
  • stator magnetism can be overcome by offsetting the counter electromotive force of the generator 210
  • the magnetic body part 310 constituting the sieve 100 and the rotating magnetic body part 300 is the electricity of the generator 210 .
  • the rotor 212 and the stator 211 constituting the generator 210 vary according to the number of poles.
  • stator magnetic body 100 and the rotating magnetic body part 300 are identical to each other divided forms. Accordingly, the stator magnetic body 100 and the rotating magnetic body part 300 are identical to each other.
  • the generator can have the same number and the same shape corresponding to the generator.
  • Figure 5 shows a power generation device with improved output according to the third embodiment of the present invention.
  • Sungha is a schematic diagram showing an example of a stator magnetic material
  • FIG. 6 is a third embodiment of the present invention.
  • the power generation device 10 with improved output according to the third embodiment of the present invention is such a magnetic material.
  • the power generation device 10 with improved output according to the third embodiment of the present invention is a stator magnetic
  • the present invention has a set length connected to one side of the generator 210 and
  • a stator magnetic body 100 installed to be wrapped with a gap; It is supported by the rotating shaft part 200 and
  • It is configured to include a rotating magnetic body part 300 that amplifies the rotation of the shaft part 200 .
  • the power generation device 10 with improved output according to the third embodiment will be described in more detail.
  • the generator 210 is configured, and is applied to the rotating shaft unit 200 by the counter electromotive force of the generator 210 .
  • stator magnetism to increase the rotational force of the rotating shaft part 200 while offsetting the force
  • the sieve 100 and the rotating magnetic body part 300 are configured, and the battery 400 is included (Fig. 1 and
  • the configuration of the generator 210 and the battery 400 is the above-mentioned bar
  • the present invention is a motor 220 on the other side of the rotating shaft portion 200 as needed: Figs. 1, 4
  • the motor 220 according to the strength of the action of the attractive force generating unit (A) and the repulsive force generating unit (B) to be described later.
  • the rotating shaft unit 200 is connected to one side of the generator 210, the use of the generator 210
  • It has a set length and diameter according to the quantity and size.
  • the stator magnetic body 100 has an arc shape having a set thickness and width.
  • the size of this stator magnetic material 100 is the use of the generator 10 including the generator 210 .
  • stator magnetic body 100 is in the longitudinal direction of the rotating shaft part 200 .
  • It has a set interval (r) and is divided into a first fixed magnetic material (100a) and a second fixed magnetic material (100b).
  • the above-described set interval (r) is the first fixed magnetic material (100a) and the second fixed magnetic material (100b) is mutual
  • the interval is not set at an interval (r) sufficient to not receive interference, and the first
  • stator magnetic material 100a may vary depending on the magnetic force strength of the stator magnetic material 100a and the second fixed magnetic material 100b.
  • the rotating magnetic body part 300 is supported by the rotating shaft part 200 and rotates in the same way,
  • the rotating magnetic body part 300 has a large
  • the attractive force generating unit (A), the repulsive force generating unit (B) to be described later is located at the exact position where the repulsive force is generated.
  • the attraction generating unit (A) is positioned to correspond to the above-described first fixed magnetic body (100a).
  • the first magnetic body 330 is an S pole
  • the first magnetic body 330 has an N pole.
  • the first magnetic body part 330 has a distance from the rotation shaft part 200 and has a first fixed magnetism.
  • the positions constitute the first magnetic body parts 330a and 330b each having a set weight.
  • the size of the shape is determined according to the strength of the magnetic force, preferably the first fixed magnetism
  • the repulsive force generating unit (B) is positioned to correspond to the above-described second fixed magnetic body (100b),
  • the second magnetic body 340 is an N pole
  • the first magnetic body 330 has an S pole.
  • the second magnetic body part 340 is also preferably spaced from the rotation shaft part 200 and
  • the positions constitute the second magnetic body parts 340a and 340b each having a set weight.
  • the second magnetic body parts (340a, 340b) are positioned to correspond to the second fixed magnetic body (100b).
  • the second fixed magnetic material 100b has the same polarity and is pushed out by the generated repulsive force F2.
  • these second magnetic body parts (340; 340a, 340b) are in the middle of the setting as described above.
  • the size and shape are determined according to the design of the magnetic material having a quantity, and preferably the second
  • stator magnetic body 100b It has the same shape corresponding to the stator magnetic body 100b. However, it is not limited to this
  • the second magnetic body part 340a on one side when the second magnetic body part 340a on one side generates the repulsive force F2 with the second fixed magnetic body 100b, the second magnetic body part 340b on the other side moves in the opposite direction to the repulsive force generation point.
  • the part in which the pushed out second second magnetic body part 340b is located is the other second magnetic body part 340b.
  • the weight of is added to make it much heavier than the instantaneous repulsive force generation point.
  • the part in which the one side second magnetic body part 340a is located is the part of the one side second magnetic body part 340a.
  • the added weight makes it momentarily much heavier than the repulsive force.
  • the repulsive force generating unit (B) is the second magnetic body portion (340; 340a, 340b) to the repulsive force (F2)
  • the repulsive force generating part (B) of the adult part 300 is configured as follows.
  • the repulsive force generating unit (B) is orthogonal to the rotating shaft unit 200 as a central axis.
  • a hollow guide tube body 500 that is supported and installed and has a set length, and a guide tube
  • the second magnetic body part (340a, 340b) is located inside the guide tube body (500),
  • It may be a structure in which the weight is shifted by moving to one side by the generated repulsive force.
  • the second magnetic body portion (340a, 340b) is located inside the guide tube body (500)
  • the weight is moved by moving outwardly to either side by the repulsive force generated by
  • the second magnetic body parts 340a and 340b have a second fixed magnetism due to the generated repulsive force F2.
  • the weight By moving along the sieve 500, the weight is moved to form an eccentricity in the circumferential direction of the rotational direction.
  • the repulsive force generating unit (B) of the present invention passes through the guide tube body 500 as necessary,
  • 340b is preferably a magnetic material having a weight, both ends of the support 600 itself or both
  • Each of the ends may be integrally formed.
  • the support 600 is longer than the length of the guide tube 500 so that both ends are Guy
  • the second magnetic body portion (340; 340a, 340b) is a magnetic body at both ends of the above-described support (600).
  • It may be a structure that is detachably coupled.
  • the support 600 has a hollow tubular shape, or a bar without an empty space
  • the support 600 itself can be composed of a magnetic material having a set weight
  • the support 600 is adjacent to the second magnetic body part (340; 340a, 340b).
  • It may have a structure including a separate weight body therein.
  • the repulsive force generating unit (B) is the second fixed magnetic material (100b) by the repulsive force (F2) the second magnetic material
  • the attractive force generating unit (A) and the repulsive force generating unit (B) are located
  • manpower generating unit (A) and the repulsive force generating unit (B) are positioned interchangeably, and the manpower generating unit (A) and the repulsive force generating unit (B) are
  • stator magnetic material 100a first fixed magnetic material
  • first connection part 320 centrifugal weight

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

La présente invention concerne un dispositif de génération d'énergie à rendement accru et, plus spécifiquement, un dispositif de génération d'énergie dans lequel une force de répulsion due à des polarités identiques et une force d'attraction due à différentes polarités, générées par un corps magnétique fixe et une partie de corps magnétique en rotation, sont utilisées pour augmenter la force de rotation d'une partie d'un arbre de rotation tout en compensant une force appliquée à la partie de l'arbre de rotation au moyen d'une force contre-électromotrice d'un générateur, grâce à quoi le rendement total est augmenté.
PCT/KR2021/007509 2020-06-15 2021-06-15 Dispositif de production d'énergie à rendement accru WO2021256840A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR10-2020-0072066 2020-06-15
KR20200072066 2020-06-15
KR10-2020-0129224 2020-10-07
KR1020200129224A KR20210155316A (ko) 2020-06-15 2020-10-07 출력을 향상시킨 발전장치
KR10-2021-0039378 2021-03-26
KR1020210039378A KR20210155342A (ko) 2020-06-15 2021-03-26 출력을 향상시킨 발전장치
KR10-2021-0077293 2021-06-15
KR1020210077293A KR20210155376A (ko) 2020-06-15 2021-06-15 출력을 향상시킨 발전장치

Publications (1)

Publication Number Publication Date
WO2021256840A1 true WO2021256840A1 (fr) 2021-12-23

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PCT/KR2021/007509 WO2021256840A1 (fr) 2020-06-15 2021-06-15 Dispositif de production d'énergie à rendement accru

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KR (1) KR20210155376A (fr)
WO (1) WO2021256840A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100007359A (ko) * 2008-07-14 2010-01-22 장석호 분할 코일부를 갖는 회전원반과 분할 자석체를 갖는고정판에 의한 발전장치
KR20110010852A (ko) * 2009-07-27 2011-02-08 강칠호 자력을 이용한 동력 발생장치
KR20170011727A (ko) * 2015-07-24 2017-02-02 진 붕 신 자력을 이용한 동력증폭장치
KR20170017063A (ko) * 2015-08-05 2017-02-15 최찬목 자성체를 이용한 발전장치
KR20180116724A (ko) * 2017-04-17 2018-10-25 엄재풍 자력을 이용한 회전 장치와 그 회전 장치의 고정자와 회전자 설치구조

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100743571B1 (ko) 2005-05-10 2007-08-01 오현택 무전원 전기에너지 발생방법 및 그 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100007359A (ko) * 2008-07-14 2010-01-22 장석호 분할 코일부를 갖는 회전원반과 분할 자석체를 갖는고정판에 의한 발전장치
KR20110010852A (ko) * 2009-07-27 2011-02-08 강칠호 자력을 이용한 동력 발생장치
KR20170011727A (ko) * 2015-07-24 2017-02-02 진 붕 신 자력을 이용한 동력증폭장치
KR20170017063A (ko) * 2015-08-05 2017-02-15 최찬목 자성체를 이용한 발전장치
KR20180116724A (ko) * 2017-04-17 2018-10-25 엄재풍 자력을 이용한 회전 장치와 그 회전 장치의 고정자와 회전자 설치구조

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