KR20170008389A - Non-contact power generating apparatus for bike using a magnet locking part and illuminating apparatus using the same - Google Patents

Non-contact power generating apparatus for bike using a magnet locking part and illuminating apparatus using the same Download PDF

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Publication number
KR20170008389A
KR20170008389A KR1020150099485A KR20150099485A KR20170008389A KR 20170008389 A KR20170008389 A KR 20170008389A KR 1020150099485 A KR1020150099485 A KR 1020150099485A KR 20150099485 A KR20150099485 A KR 20150099485A KR 20170008389 A KR20170008389 A KR 20170008389A
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KR
South Korea
Prior art keywords
bicycle
magnet
rotor
magnets
fastener
Prior art date
Application number
KR1020150099485A
Other languages
Korean (ko)
Inventor
변해석
Original Assignee
변해석
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Filing date
Publication date
Application filed by 변해석 filed Critical 변해석
Priority to KR1020150099485A priority Critical patent/KR20170008389A/en
Publication of KR20170008389A publication Critical patent/KR20170008389A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • B62J6/06—Arrangement of lighting dynamos or drives therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J99/00—Subject matter not provided for in other groups of this subclass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
    • 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
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • B62J2099/004—
    • B62J2300/004—

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

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-contact power generation device for a bicycle and a lighting device. A non-contact type power generating device for a bicycle using a magnet fastener according to the present invention includes a rotor having a plurality of magnets in which NS poles are arranged at an intersection with a rotation axis as an axis, a coil winding wound along a longitudinal plane of the rotor, And an induction current is generated in the coil winding as the rotor rotates by the magnetic action between the rotor, the rim of the bicycle, and the magnet fastener when the wheel of the bicycle rotates. According to the present invention, by providing one or more magnet fastening members to a bicycle wheel and providing a sufficient initial rotational force to the magnet by using a magnet provided on the bicycle wheel magnetically acting on the rim of the bicycle wheel and the magnet fastener, And thus it is possible to secure a bright field of view even when driving the bicycle at a low speed at night.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact power generating device and a lighting device for a bicycle using a magnet fastener,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact power generation device for a bicycle and a lighting device, and more particularly, To a non-contact type power generator for a bicycle in which a current is induced in a coil winding, and a lighting apparatus using the same.

A bicycle generator is a device that converts the kinetic energy of a bicycle wheel into electric energy and is used to supply electric power to headlights or rear lights. These bicycle generators can be distinguished between contact type and non-contact type according to the principle of power generation. The contact type bicycle generator is a method of obtaining electric energy by rotating the roller through friction with the wheel of the bicycle. The efficiency is low due to the braking effect of the bicycle wheel due to friction, and the foreign matter (for example, Clay, etc.), there is a problem that noise is generated.

Unlike contact-type bicycle generators, contactless bicycle generators use eddy currents generated between the rim of the bicycle and the permanent magnets without using the wheel contact of the bicycle. More specifically, the noncontact bicycle generator may comprise a rotor having a plurality of permanent magnets arranged in a rim of a bicycle and having N poles and S poles arranged at an intersection, and a coil winding wound on the outer surface of the rotor. Here, a magnetic field generated by the permanent magnets of the rotor is transmitted through the rim, and an eddy current having opposite directions to each other is generated (Faraday's law). Such eddy currents generate magnetic fields in the same direction as the permanent magnets. As a result, the rotation of the wheel of the bicycle rotates the permanent magnet of the rotor, and a current is induced in the coil winding due to the change of the magnetic flux of the coil winding. Thus, a non-contact bicycle generator can convert the kinetic energy of a bicycle wheel into electrical energy.

Meanwhile, the magnitude of the electric energy generated by the non-contact type bicycle generator is determined according to the capacity of the magnet of the rotor. In the conventional non-contact type bicycle generator, since a small capacity magnet is used to correspond to the length of the rim of the bicycle, The magnitude of the current induced in the current source is also inevitably small. Accordingly, the conventional non-contact type bicycle generator is used only as a blinker because it has a very low brightness to be used as illumination for securing a field of view at night.

In addition, when the capacity of the magnet is increased to have a size larger than the length of the bicycle rim in order to obtain a higher current, sufficient torque can not be provided to the magnet. Accordingly, there is a problem that electric currents generated at the time of initial driving of the bicycle or at low speed running are very small, so that electric energy necessary for securing the visual field can not be obtained.

According to the present invention, by providing one or more magnet fasteners on a bicycle wheel and providing a magnet with sufficient initial rotational force by using a magnet provided on a bicycle wheel to magnetically act on a magnet fastener and a rim of a bicycle wheel, And it is an object of the present invention to provide a non-contact type power generating device and a lighting device which can obtain a high current and electric energy and can secure a bright field even when the bicycle runs at a low speed at night.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description and more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

In order to achieve the above object, there is provided a non-contact type power generating device for a bicycle using a magnet fastener according to the present invention, comprising: a rotor having a plurality of magnets in which NS poles are arranged at an intersecting point about a rotation axis; a coil winding wound along a longitudinal plane of the rotor; Wherein the rotor is rotated by the magnetic action between the rotor, the rim of the bicycle and the magnet fastener when the wheel of the bicycle rotates, and the induction current Is generated.

Further, a non-contact type lighting device for a bicycle using a magnet fastener of the present invention includes a rotor having a plurality of magnets in which NS poles are arranged at an intersecting point about a rotation axis, a coil winding wound along a longitudinal plane of the rotor, And a lighting unit for generating light by using a current induced in the coil winding, wherein when the wheel of the bicycle is rotated, by the magnetic action between the rotor, the rim of the bicycle and the magnet fastening unit, An induction current is generated in the coil winding.

According to the present invention as described above, one or more magnet fastening members are bound to a bicycle wheel and a magnet provided on the bicycle wheel is magnetically applied to the rim of the bicycle wheel and the magnet fastener, It is possible to obtain a higher current and electric energy than the conventional power generation apparatus and to secure a bright field even when the bicycle runs at a low speed at night.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram of a non-contact type power generator for a bicycle using a magnet fastener according to an embodiment of the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a non-contact type power generating device for a bicycle using a magnet fastener.
3 is a view for explaining that a magnet fastener according to an embodiment of the present invention is bound to a spoke of a bicycle;
4A is a view for explaining an embodiment of a rotor having six magnets;
Fig. 4B is a view for explaining an embodiment of a rotor having four magnets; Fig.

The above and other objects, features, and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings, which are not intended to limit the scope of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to denote the same or similar elements.

FIG. 1 is a configuration diagram of a non-contact type power generating device for a bicycle using a magnet coupling according to an embodiment of the present invention, FIG. 2 is a view for explaining the operation of the non- FIG. 1, a wheel 10 of a bicycle is comprised of a tire 12, a rim 14, a spoke 16, and a hub 18. As shown in Fig.

Referring to FIG. 1, a non-contact type power generator for a bicycle using a magnet fastener of the present invention may include a power module 100 and a magnet fastener 110 bound to a spoke 16 of a bicycle. The power generation module 100 of the present invention may be installed apart from the rim 14 of the bicycle wheel 10 and the magnet fastener 110 bound to the spokes 16.

The power generation module 100 may include a rotor having a structure in which a magnet can be rotated and a coil winding wound around the rotor. Preferably, the rotor comprises a plurality of magnets 102, with N poles and S poles intersecting each other, about the axis of rotation 104 as shown in FIG. 2, a plurality of magnets 102, And a housing 108 in which a plurality of magnets 102 are received. Here, the plurality of magnets 102 may be coupled to each other to have a cylindrical shape, and may be arranged so that N poles and S poles are crossed so as to be disposed adjacent to each other. Here, the rotor can be configured to have an even number (e.g., two, four or six) of magnets, as shown in Figures 4A and 4B. On the other hand, the rotor may be made of one magnet so that the N pole and the S pole can be crossed as the rotor rotates about the rotation axis. The coil windings can also be wound along the longitudinal plane of the rotor so that current can be induced as the plurality of magnets 102 of the rotor rotate. Thereby, when the wheel 10 of the bicycle rotates, the plurality of magnets 102 of the rotor rotate about the rotation axis 106, and accordingly the magnetic flux passing through the coil winding is changed to induce a current in the coil winding .

More specifically, the rotor rotates in the tangential direction of the direction in which the wheel 10 of the bicycle rotates, and the rotational force of the rotor causes the magnetic action between the rim 14 of the bicycle and the rotor and the magnetic force between the magnet fastener 110 and the rotor Lt; / RTI > Here, the magnetic action between the rim 14 of the bicycle and the rotor provides the rotation holding force to the rotor, and the magnetic action between the magnet fastener 110 and the rotor tied to the spoke of the bicycle can provide rotational acceleration to the rotor have.

In detail, the plurality of magnets 102 of the rotor are arranged in such a manner that the N pole and the S pole are intersected with each other about the rotation axis, and the magnet 14 closest to the rim 14 of the bicycle The magnetic field of the magnet is transmitted to the rim 14 of the bicycle, generating an eddy current having opposite directions, and a magnetic field is generated by each eddy current. On the other hand, in the magnetic field due to the eddy current, the front magnetic field pulls the magnet of the rotor and the rear magnetic field pushes the magnet of the rotor based on the rotational direction of the rim 14 of the bicycle, In the direction of the tangential line. As a result, as the plurality of magnets 102 of the rotor rotate, an induced current according to the electromagnetic induction rule flows in the coil winding of the power generation module 100.

Conventionally, since the magnet of the rotor has a size corresponding to the length of the rim 14 of the bicycle, the current to be induced in the coil winding is very small due to the small capacity of the magnet. When the capacity of the magnet is increased, There is a problem that it is difficult to use such a power generation device for securing a field of view at night when the power generation device is connected to an illumination device such as an LED.

The non-contact type power generator for bicycle using the magnet fastener of the present invention can provide the rotor with rotational acceleration due to the magnetic action between the magnet fastener 110 and the rotor coupled to the spoke of the bicycle, unlike the conventional power generator .

1 and 2, the non-contact type power generator for bicycle using the magnet fastener of the present invention includes one or more magnet fasteners 110 that are bound to the spokes 16 of the wheels 10 of the bicycle . The rotor of the power generation module 100 can obtain a rotational force through magnetic action between the rim 14 of the bicycle wheel 10 and the magnet fastener 110. Specifically, when a plurality of magnets inside the rotor are arranged so as to intersect the N pole and the S pole, when the magnet fastener 110 is composed of N magnets, when the wheels of the bicycle rotate, Pole of the magnet fastener 110 and can provide the rotation accelerating force to the rotor. Similarly, when the magnet fastener 110 is composed of S-pole magnets, the S-pole of the magnets of the rotor may repel each other as it passes through the S-pole of the magnet fastening hole 110 to provide a rotational acceleration force to the rotor. As such, the magnet fastener 110 may have an S pole or an N pole.

3 is a view for explaining that a magnet fastener according to an embodiment of the present invention is bound to a spoke of a bicycle. The magnet fastener 110 may include a bolt 112 whose head is a magnet and a nut 114 for fastening the bolt 112 to the spokes 16 of the bicycle. 3, the body of the bolt 112 may have an engaging groove for inserting the spokes 16. After the spokes 16 are inserted into the engaging grooves of the bolts 112, The magnet fastener 110 can be fixedly coupled to the spokes 16 of the bicycle.

In an embodiment of the invention, the magnet fasteners may be tied to all the spokes of the bicycle, and may be tied together for every two spokes. Further, the intervals of the spokes to which the magnet fastening members are bound may be different from each other. For example, in the case of a bicycle wheel consisting of 10 spokes, only the first, third and sixth spokes can be bound to the magnet fastener.

As described above, the magnet fastener 110 provides a rotational acceleration force to the rotor so that the magnet of the rotor can easily rotate even if it has a large capacity. That is, according to the present invention, since the rotor is provided with the resultant of the rotation sustaining force due to the magnetic action between the rotor and the rim 14 of the bicycle and the rotational acceleration due to the magnetic action (repulsion) between the rotor and the magnet fastener 110, The magnet of the rotor can rotate easily even when the bicycle is being driven at the initial or low speed. Thereby, as the magnet having a larger capacity than the conventional one rotates, the current induced in the coil winding becomes larger, so that the current and the electric energy enough to be utilized as the illumination in the nighttime running can be obtained.

According to an embodiment of the present invention, a noncontact lighting apparatus for a bicycle using a magnet fastener can be realized by adding an illumination unit that generates light using current to a noncontact type electric power generator for bicycle using the magnet fastener of the present invention.

Referring to FIG. 1, current may flow through a lighting unit (not shown) installed on a bicycle through electric wires 120a and 120b connected to coil windings of the power generation module 100. FIG. Here, the configuration of the power generation module 100 is as described above, and the current induced in the coil winding of the power generation module 100 can be supplied to the lighting unit and utilized as illumination of the bicycle. Here, the illumination unit may include an LED or the like as an element that emits light when an electric current flows.

Further, in another embodiment of the present invention, the non-contact type power generator for bicycle using the magnet fastener of the present invention may further include a charging module (not shown), and the electric wire 120a connected to the coil winding of the power generation module 100 , 120b to store the electrical energy in the charging module and supply the stored electrical energy if necessary. In this embodiment, the number of windings to be wound around the rotor is only one. However, a circuit configuration in which two or more coil windings are wound on a rotor and output ends of the coil windings are connected in series or in parallel may be possible.

According to the present invention as described above, one or more magnet fastening members are bound to a bicycle wheel, and a magnet provided on the bicycle wheel is magnetically provided to the magnet fastener and the rim of the bicycle wheel to provide a sufficient initial rotational force to the magnet, It is possible to obtain a higher current and electric energy than the conventional power generation apparatus and to secure a bright field even when the bicycle runs at a low speed at night.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, But the present invention is not limited thereto.

Claims (8)

A rotor having a plurality of magnets in which NS poles are arranged at an intersecting point about a rotation axis;
A coil winding wound along a longitudinal section of the rotor; And
At least one magnet fastener coupled to a spoke of the bicycle,
An induction current is generated in the coil winding as the rotor rotates by the magnetic action between the rotor, the rim of the bicycle, and the magnet fastener when the wheels of the bicycle rotate.
Non - contact power generator for bicycle using magnet fastener.
The method according to claim 1,
The rotor
Characterized by having an even number of magnets
Non - contact power generator for bicycle using magnet fastener.
The method according to claim 1,
The rotor
A plurality of magnets in which NS poles are arranged at an intersection with the rotation axis as a center;
A bearing supporting a rotational motion of the plurality of magnets; And
And a plurality of magnets
Wherein the non-contact type electric power generating device for a bicycle using a magnet fastener is provided.
The method according to claim 1,
The magnet fastener
A bolt whose head is a magnet; And
A nut for fixing the bolt to the spoke of the bicycle;
And a magnetic coupling member for supporting the magnetic contact member.

A rotor having a plurality of magnets in which NS poles are arranged at an intersecting point about a rotation axis;
A coil winding wound along a longitudinal section of the rotor;
One or more magnet fasteners bound to the spokes of the bicycle; And
And an illumination unit for generating light using a current induced in the coil winding,
An induction current is generated in the coil winding as the rotor rotates by the magnetic action between the rotor, the rim of the bicycle, and the magnet fastener when the wheels of the bicycle rotate.
Non - contact lighting system for bicycle using magnet fastening.
6. The method of claim 5,
The rotor
Characterized by having an even number of magnets
Non - contact lighting system for bicycle using magnet fastening.
6. The method of claim 5,
The rotor
A plurality of magnets in which NS poles are arranged at an intersection with the rotation axis as a center;
A bearing supporting a rotational motion of the plurality of magnets; And
And a plurality of magnets
Wherein the magnet fastener is used for a bicycle.
6. The method of claim 5,
The magnet fastener
A bolt whose head is a magnet; And
A nut for fixing the bolt to the spoke of the bicycle;
Wherein the magnet fastener is used for a bicycle.

KR1020150099485A 2015-07-14 2015-07-14 Non-contact power generating apparatus for bike using a magnet locking part and illuminating apparatus using the same KR20170008389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150099485A KR20170008389A (en) 2015-07-14 2015-07-14 Non-contact power generating apparatus for bike using a magnet locking part and illuminating apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150099485A KR20170008389A (en) 2015-07-14 2015-07-14 Non-contact power generating apparatus for bike using a magnet locking part and illuminating apparatus using the same

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KR20170008389A true KR20170008389A (en) 2017-01-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108539922A (en) * 2018-04-20 2018-09-14 西南交通大学 A kind of multifunction bicycle power generator
CN108599349A (en) * 2018-06-08 2018-09-28 山东职业学院 A kind of contactless smart electronics chargers on bicycle
CN110762403A (en) * 2018-07-25 2020-02-07 刘清忠 Energy-conserving rotatory lantern of tradition of hand push

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108539922A (en) * 2018-04-20 2018-09-14 西南交通大学 A kind of multifunction bicycle power generator
CN108539922B (en) * 2018-04-20 2023-11-07 西南交通大学 Multifunctional bicycle power generation device
CN108599349A (en) * 2018-06-08 2018-09-28 山东职业学院 A kind of contactless smart electronics chargers on bicycle
CN110762403A (en) * 2018-07-25 2020-02-07 刘清忠 Energy-conserving rotatory lantern of tradition of hand push

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