KR101673011B1 - Electricity generating device having adjustable linear resonance frequency and linear resonance frequency control method for electricity generating device - Google Patents

Electricity generating device having adjustable linear resonance frequency and linear resonance frequency control method for electricity generating device Download PDF

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Publication number
KR101673011B1
KR101673011B1 KR1020150046349A KR20150046349A KR101673011B1 KR 101673011 B1 KR101673011 B1 KR 101673011B1 KR 1020150046349 A KR1020150046349 A KR 1020150046349A KR 20150046349 A KR20150046349 A KR 20150046349A KR 101673011 B1 KR101673011 B1 KR 101673011B1
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KR
South Korea
Prior art keywords
permanent magnet
cylinder
resonance frequency
linear resonance
electricity generating
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KR1020150046349A
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Korean (ko)
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KR20160118069A (en
Inventor
이한민
박성환
김영철
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한국기계연구원
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Priority to KR1020150046349A priority Critical patent/KR101673011B1/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K35/00Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02NELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00Electric machines in general using piezo-electric effect, electrostriction or magnetostriction
    • H02N2/18Electric machines in general using piezo-electric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators

Abstract

Disclosed herein is an electricity generating device capable of generating electricity using an induction current generated in accordance with the movement of a permanent magnet, the linear resonance frequency of the permanent magnet being adjustable, and the linear resonance frequency adjusting method of the electricity generating device.
According to the present invention, there is provided an internal combustion engine comprising: a cylinder having a hollow therein; a coil wound around an outer center of the cylinder; a permanent magnet disposed at an inner center of the cylinder; A support means for providing an attractive force or a repulsive force to the upper and lower portions of the permanent magnet so as to be floated on the central portion of the cylinder; and a control means for controlling the tension of the support means to adjust the strength of the attraction force or the repulsion force applied to the permanent magnet. And a method of adjusting the linear resonance frequency of the electricity generating device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric generator capable of adjusting a linear resonance frequency, and a method for adjusting a linear resonance frequency of the electric generator,
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric generator capable of adjusting a linear resonance frequency and a method of adjusting a linear resonance frequency of the electric generator, And a method of adjusting the linear resonance frequency of the electricity generating device.
BACKGROUND OF THE INVENTION [0002] Today, various industrial electronic devices are being used due to the development of electronic industry, and electric power is required for use of such various portable electronic devices.
Electricity used in such portable electronic devices generally supplies necessary electric power to portable electronic devices through a battery coupled with the portable electronic device. When a portable electronic device is used for a long time, the battery is completely discharged and the portable electronic device is used I can not.
For continued use of such portable electronic devices, the user may use the portable electronic device with the replacement of a charged additional battery or a separate charger or power connection cable.
Portable electrical storage devices, such as conventional batteries and storage capacities, and a separate power connection cable can be recharged or used by connecting a portable electrical storage device or portable electronic device to an electrical source, Since the device can not be charged, an electric source is necessarily required.
Generally, such an electric power source is generated by a power plant and supplied to a predetermined place through a power line or a separate electricity generating device. In a conventional electric power generating device, the rotation of the crankshaft by an internal combustion engine, A small-sized electricity generating device in which mechanical energy stored in a rewound tape is gradually converted into electrical energy by winding the rewound tape by winding the tape by a person's human force, and a permanent magnet And a coil is wound around the permanent magnet, and induction current is generated in the coil according to the movement of the permanent magnet to generate electricity.
The electric generating apparatus using such an internal combustion engine is large in scale and complex, which is expensive, and electric generating apparatuses using tapes are limited in the generation time and the generation amount of electricity depending on the strength of the tape and the size of the tape.
On the other hand, in the apparatus for generating electricity by the induction current generated in the permanent magnet and the coil, the amount of electricity generated varies depending on the strength of the permanent magnet, the thickness of the coil, the number of turns, and the like. The amount of generation varies.
Generally, such conventional electricity generators exist in the form of being coupled to a large or fixed structure, which is not suitable for carrying. In addition to this, electricity is generated only when there is movement in one direction even when carrying, and the linear resonance frequency of the permanent magnet There is a problem that the power generation efficiency is deteriorated due to the lack of means for adjusting.
Korean Patent Publication No. 10-2009-0046790
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a permanent magnet which can continuously generate electric power irrespective of the mobile environment and the movement of the wearer, And a method of adjusting the linear resonance frequency of the electricity generating device.
According to an aspect of the present invention, there is provided a method of manufacturing a cylinder, including a cylinder having a hollow therein, a coil wound around an outer center of the cylinder, A supporting means provided on an inner upper surface and an inner lower surface of the cylinder to provide an attractive force or a repulsive force to the upper and lower portions of the permanent magnet so that the permanent magnet floats on the central portion of the cylinder; And adjusting means for adjusting the tension of the supporting means so as to adjust the strength of the repulsive force.
According to another aspect of the present invention for achieving the above object, there is provided an internal combustion engine comprising a cylinder having a hollow therein, a coil wound around an outer center of the cylinder, a permanent magnet disposed at an inner center of the cylinder, And a support means provided on a lower surface of the cylinder for providing an attractive force or a repulsive force to the upper and lower portions of the permanent magnet so that the permanent magnet floats on the central portion of the cylinder, tension adjusting means for adjusting the magnitude of the attractive force or the repulsive force applied to the permanent magnet.
As described above, according to the present invention, electricity can be continuously generated regardless of the portable environment and the movement of the portable person at the time of carrying, and the linear resonance frequency of the permanent magnet can be adjusted according to the portable environment and the movement of the portable person, There is an effect.
1 is a perspective view of an electricity generating device capable of adjusting a linear resonance frequency according to an embodiment of the present invention;
2 is a cross-sectional view of an electricity generating device capable of adjusting a linear resonance frequency according to an embodiment of the present invention;
3 is a perspective view of an electricity generating device capable of adjusting a linear resonance frequency according to another embodiment of the present invention;
4 is a perspective view of an electricity generating device capable of adjusting a linear resonance frequency according to another embodiment of the present invention.
The method for adjusting the linear resonance frequency of the electricity generating device and the electricity generating device according to the present invention generates electricity using the induced current generated according to the motion of the permanent magnet. As shown in Fig.
FIG. 1 is a perspective view of an electricity generating device capable of adjusting a linear resonance frequency according to an embodiment of the present invention, and FIG. 2 is a sectional view of an electricity generating device capable of adjusting a linear resonance frequency according to an embodiment of the present invention.
The electric generator according to an embodiment of the present invention includes a cylinder 100, a coil 200, a permanent magnet 300, a support means 400, and a control means.
The cylinder 100 is a hollow circular pipe in which a hollow 110 is formed and accommodates therein the permanent magnet 300 and the support means 400. The coil 200 is wound around the center of the outer circumferential surface, do.
As described above, the coil 200 is wound around the center portion of the cylinder 100. When the permanent magnet 300 vibrates up and down in the cylinder 100, the magnetic field is changed, A current flows through the second transistor 200. The electricity generated by the induction current may be used immediately or may be stored in a separate battery.
The permanent magnet 300 is disposed at an inner center portion of the cylinder 100, and electricity can be generated using an induction current generated according to the movement of the permanent magnet 300.
The supporting means 400 is provided on the upper and lower surfaces of the cylinder 100 so that the permanent magnets 300 are lifted at the central portion of the cylinder 100, Or repulsive force. That is, the permanent magnet 300 supports the permanent magnet 300 such that the permanent magnet 300 does not collide with both ends of the cylinder 100, but is positioned at the center of the cylinder 100. The supporting means 400 may be formed of an elastic body.
When the electric generator constructed as described above is carried in a vehicle or a bag or the like, the vertical vibration is generated by the movement of the vehicle and the portable player, and the permanent magnets 300 are moved up and down along the longitudinal direction of the cylinder 100 in the cylinder 100 and induction current is generated in the coil 200 surrounding the center of the cylinder 100.
For example, the interior of the cylinder 100 may be hollow so that the up and down movement of the permanent magnet 300 is not disturbed by air. As another example, in order to reduce the resistance applied to the permanent magnet 300, air holes allowing air in and out can be formed in the upper and lower portions of the cylinder 100, so that when the permanent magnet 300 moves, And may be allowed to enter or exit through the air hole.
According to an embodiment of the present invention, the tension of the supporting means 400 may be adjusted on the upper and / or lower portions of the supporting means 400 so as to adjust the strength of the attractive force or the repulsive force applied to the permanent magnets. .
The adjusting means may take various embodiments in a range where the tension of the supporting means 400 can be adjusted. Generally, the frequency of the vertical vibration varies depending on the portable environment, such as when driving or walking. When the tension of the supporting means 400 is adjusted by the operation of the adjusting means as described above, The linear resonance frequency of the magnet 300 can be adjusted so that the vertical vibration of the permanent magnet 300 is optimized and consequently the power generation efficiency by the induced current can be increased.
According to an embodiment of the present invention, the supporting means 400 includes a first spring 411 having one end connected to the inner upper surface of the cylinder 100 and the other end connected to the upper surface of the permanent magnet 300, And a second spring 412 having one end connected to the lower surface of the permanent magnet 300 and the other end connected to the inner lower surface of the cylinder 100.
The first spring 411 and the second spring 412 are each resiliently resilient and each of the permanent magnets 300 has the same size with respect to the permanent magnet 300 so that the permanent magnets 300 are positioned at the center of the cylinder 100. Provide manpower. At this time, the first spring 411 and the second spring 412 may be replaced by a spring having a large spring constant K, or the lengths of the first spring 411 and the second spring 412 may be increased, When the number of the second springs 411 and the second springs 412 is increased, the restoring elastic force is increased and the attractive force applied to the permanent magnet 300 is increased. The first spring 411 and the second spring 412 may be replaced by a spring having a small spring constant K or the length of the first spring 411 and the second spring 412 may be reduced, 411 and the second spring 412 are reduced, the restoring elastic force is reduced and the attractive force applied to the permanent magnet 300 is also reduced. When the attractive force applied to the permanent magnet 300 is adjusted in the above manner, the linear resonance frequency of the permanent magnet 300 can be adjusted, so that the vertical vibration of the permanent magnet 300 can be optimized for each situation, , It is possible to increase the power generation efficiency by the induced current.
3 is a perspective view of an electricity generating device capable of adjusting a linear resonance frequency according to another embodiment of the present invention.
According to an embodiment of the present invention, the support means 400 may include a first magnet (not shown) disposed on the inner upper surface of the cylinder 100 such that a pole of the permanent magnet 300, And a second magnet 422 disposed on an inner lower surface of the cylinder 100 such that a pole of the permanent magnet 300 is disposed opposite to the cylinder 100 to generate a repulsive force.
The first magnet 421 and the second magnet 422 provide a repulsive force of the same magnitude as that of the permanent magnet 300 so that the permanent magnet 300 is positioned at the center of the cylinder 100. At this time, if the distance between the first magnet 421 and the second magnet 422 and the permanent magnet 300 is shortened or the size of the first magnet 421 and the second magnet 422 becomes large, The distance between the first magnet 421 and the second magnet 422 and the permanent magnet 300 is increased or the size of the first magnet 421 and the second magnet 422 is small The repulsive force applied to the ground permanent magnet 300 becomes small. When the repulsive force applied to the permanent magnet 300 is adjusted in the above manner, the linear resonance frequency of the permanent magnet 300 can be adjusted, so that the vertical vibration of the permanent magnet 300 is optimized for each situation, , It is possible to increase the power generation efficiency by the induced current.
According to another embodiment of the present invention, the cylinder 100 includes a body 120 having a hollow cylindrical shape with open top and bottom, a body 120 having an inner circumferential surface at an upper end and a lower end formed with threads, An upper cover 511 which is formed in the shape of a circular plate and is fitted to the upper end of the body 120 to shield the upper end of the body 120 and an upper cover 511 in the form of a disk having threads on the outer circumference, And a lower cover 512 for covering the upper end of the body 120.
The upper cover 511 and / or the lower cover 512 are screwed into the cylinder 100 and enter the cylinder 100 or out of the cylinder 100, so that the permanent magnets 300 So that the tension of the support means 400 can be easily adjusted.
For example, when the support means 400 is provided with the first spring 411 and the second spring 412, when the upper cover 511 and the lower cover 512 are brought close to the permanent magnet 300, The attraction force of the first spring 411 and the second spring 412 is weakened and the first spring 411 and the second spring 412 are disengaged when the upper cover 511 and the lower cover 512 are separated from the permanent magnet 300. [ The workforce becomes stronger.
As another example, when the supporting means 400 is provided with the first magnet 421 and the second magnet 422, when the upper cover 511 and the lower cover 512 are brought close to the permanent magnet 300, The repulsive force by the first magnet 421 and the second magnet 422 is high and when the upper cover 511 and the lower cover 512 are separated from the permanent magnet 300, the first magnet 421 and the second magnet 422 ) Is weakened.
4 is a perspective view of an electricity generating device capable of adjusting a linear resonance frequency according to another embodiment of the present invention.
According to another embodiment of the present invention, the supporting means 400 includes a first elastic band 431 connected to one end of the cylinder 100 and connected at the other end to the upper portion of the permanent magnet 300, And a second elastic band 432 having one end connected to the lower portion of the permanent magnet 300 and the other end connected to the lower portion of the cylinder 100.
The first elastic band 431 and the second elastic band 432 have resilient elasticities and are identical to the permanent magnets 300 so that the permanent magnets 300 are positioned at the center of the cylinder 100 Sized manpower. The first elastic band 431 and the second elastic band 432 may be replaced with an elastic band having a high elastic modulus K or the first elastic band 431 and the second elastic band 432 may be replaced with an elastic band having a high elastic modulus K, Or the number of the first elastic bands 431 and the second elastic bands 432 is increased, the restoring elastic force is increased and the attractive force applied to the permanent magnets 300 is increased. The first elastic band 431 and the second elastic band 432 may be replaced with an elastic band having a small elastic modulus K or the first elastic band 431 and the second elastic band 432 When the length is reduced or the number of the first elastic bands 431 and the second elastic bands 432 is reduced, the restoring elasticity is reduced and the attractive force applied to the permanent magnets 300 is also reduced. When the attractive force applied to the permanent magnet 300 is adjusted in the above manner, the linear resonance frequency of the permanent magnet 300 can be adjusted, so that the vertical vibration of the permanent magnet 300 can be optimized for each situation, , It is possible to increase the power generation efficiency by the induced current.
According to an embodiment of the present invention, one end of the first elastic band 431 is wound around a first tightening means 521 formed at an outer upper end of the cylinder 100, and the first elastic band 431 is wound by the first tightening means 521 And the other end of the second elastic band 432 is wound around a second tightening means 522 formed at an outer lower end of the cylinder 100 and tensioned by the second tightening means 522. [ the tension is adjusted.
When the first tightening means 521 and the second tightening means 522 are tightened, the first elastic band 431 and the second elastic band 432 are tightened and the restoring elastic force becomes large, The manpower is getting bigger. On the other hand, when the first tightening means 521 and the second tightening means 522 are loosened, the first elastic band 431 and the second elastic band 432 are loosened and the restoring elastic force becomes small, The applied force is reduced. At this time, the ring-shaped frame 530 may be additionally provided on the outer side of the cylinder 100 so that the first tightening means 521 and the second tightening means 522 are supported.
A plurality of first elastic bands 431 and a plurality of second elastic bands 432 may be provided in a radial manner and one tightening means 521 and 522 may be respectively disposed on the upper and lower portions of the cylinder 100, The first elastic band 431 and the plurality of second elastic bands 432 can be simultaneously tightened or loosened by one tightening means 521 and 522.
When the plurality of first elastic bands 431 and the second elastic bands 432 are simultaneously tightened by one tightening means 521 and 522 as described above, the attractive force applied to the permanent magnet 300 is concentrated in one direction And the linear resonance frequency of the permanent magnet 300 can be adjusted more uniformly.
A method for adjusting a linear resonance frequency of an electricity generating device according to an embodiment of the present invention includes a cylinder 100 having a hollow 110 formed therein, a coil 200 wound around an outer center of the cylinder 100, A permanent magnet 300 disposed at an inner center of the cylinder 100 and an inner upper surface and an inner surface of the cylinder 100 to allow the permanent magnet 300 to float on the central portion of the cylinder 100. [ In order to adjust the linear resonance frequency of the electricity generating device including supporting means (400) for providing attraction or repulsion to the upper and lower portions of the permanent magnet (300), the upper and / Adjusting means for adjusting the tension of the permanent magnet 300 is disposed to adjust the strength of the attractive force or the repulsive force applied to the permanent magnet 300.
Generally, the frequency of the vertical vibration varies depending on the portable environment, such as when driving or walking. When the tension of the supporting means 400 is adjusted by the operation of the adjusting means as described above, The linear resonance frequency of the magnet 300 can be adjusted so that the vertical vibration of the permanent magnet 300 is optimized and consequently the power generation efficiency by the induced current can be increased.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention.
Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.
100: cylinder 110: hollow
120: body 200: coil
300: permanent magnet 400: supporting means
411: first spring 412: second spring
421: first magnet 422: second magnet
431: first elastic band 432: second elastic band
511: upper cover 512: lower cover
521: first tightening means 522: second tightening means
530: ring-shaped frame

Claims (7)

  1. A cylinder having a hollow formed therein;
    A coil wound around an outer center portion of the cylinder;
    A permanent magnet disposed at an inner center portion of the cylinder;
    Supporting means provided on an inner upper surface and an inner lower surface of the cylinder to provide an attractive force or a repulsive force to the upper and lower portions of the permanent magnet so that the permanent magnet floats on the central portion of the cylinder;
    Adjusting means for adjusting a tension of the supporting means to adjust the strength of a pulling force or a repulsive force applied to the permanent magnet;
    / RTI >
    Wherein the support means comprises:
    A first elastic band having one end connected to an upper portion of the cylinder and the other end connected to an upper portion of the permanent magnet;
    A second elastic band having one end connected to a lower portion of the permanent magnet and the other end connected to a lower portion of the cylinder;
    Lt; / RTI >
    Wherein one end of the first elastic band is wound on a first tightening means formed at an outer upper end of the cylinder so that tension is controlled by the first tightening means and the other end of the second elastic band is wound around the outer lower end And the tension is regulated by the second tightening means. 2. The electric generator according to claim 1, wherein the second tightening means adjusts tension of the linear resonance frequency.
  2. delete
  3. delete
  4. The method according to claim 1,
    The cylinder
    A body portion formed in a hollow cylindrical shape having an upper portion and a lower portion opened and formed with threads on an inner peripheral surface of an upper end and a lower end;
    An upper cover which is formed in the shape of a disk having a thread on an outer circumferential surface and is fitted to an upper end of the body to shield an upper end of the body; And
    A lower cover which is formed in the shape of a disk having a thread on an outer circumferential surface and is fitted to a lower end of the body to shield an upper end of the body;
    / RTI >
    Wherein the upper cover or the lower cover is adjusted in spacing with the permanent magnet.
  5. delete
  6. delete
  7. delete
KR1020150046349A 2015-04-01 2015-04-01 Electricity generating device having adjustable linear resonance frequency and linear resonance frequency control method for electricity generating device KR101673011B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201909277D0 (en) * 2019-06-27 2019-08-14 Univ Limerick Vibrational energy harvester

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010520738A (en) 2007-03-07 2010-06-10 トレモント エレクトリック エルエルシー Electrical energy generator
JP2012249442A (en) * 2011-05-27 2012-12-13 Onkyo Corp Oscillating generator
KR101408331B1 (en) * 2013-03-21 2014-06-18 한국기계연구원 A Portable electric generator
JP2015035892A (en) 2013-08-08 2015-02-19 スミダコーポレーション株式会社 Vibration power generator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008002413A2 (en) 2006-06-26 2008-01-03 Battelle Energy Alliance, Llc System and method for storing energy

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010520738A (en) 2007-03-07 2010-06-10 トレモント エレクトリック エルエルシー Electrical energy generator
JP2012249442A (en) * 2011-05-27 2012-12-13 Onkyo Corp Oscillating generator
KR101408331B1 (en) * 2013-03-21 2014-06-18 한국기계연구원 A Portable electric generator
JP2015035892A (en) 2013-08-08 2015-02-19 スミダコーポレーション株式会社 Vibration power generator

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