KR101758463B1 - A Generator for a Bike and a Snap-Fit Battery Module thereof - Google Patents

Abstract

The present invention relates to a battery module that is applicable to all portable generators and that can provide power to an external device or provide power to an LED light.
The present invention includes an input terminal (100) to which an output terminal of a generator (20) is connected; A constant voltage unit 200 including a rectifier 210 for rectifying a generator output current input through the input terminal 100 to a direct current and a regulator 220 for outputting a direct current rectified by the rectifier 210 at a constant voltage, ; And a charging unit 300 connected to an output terminal of the constant voltage unit 300. The charging unit 300 includes a battery 320 charged with a direct current of a constant voltage outputted from the constant voltage unit, And a control circuit for controlling the current flowing between the output terminal of the constant voltage unit, the battery 320, and the terminal 340. The terminal 340 is connected to the battery 340, And a battery module.

Description

A generator for a bicycle and a battery module detachable from the generator are provided.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bicycle generator and a battery, and more particularly, to a bicycle generator applicable to rims of all kinds of bicycle wheels and various portable generators including such a bicycle generator And more particularly, to a rechargeable battery module that can be used.

 The present invention relates to a battery module that is applied to a bicycle generator, and more particularly, to a battery module applicable to all portable generators and capable of providing power to external devices or providing power to LED lights.

Eddy current refers to a swirl current flowing on a metal conductor due to an electromotive force generated when the magnetic flux changes in the metal conductor. The power loss due to the eddy current is called an eddy current, and the temperature of the metal conductor is raised by heat loss. The force generated by this eddy current is used in electric brakes in electric power meters and electric trains.

A ferromagnetic substance (ferromagnetic substance) refers to a substance that is strongly magnetized in the direction of its magnetic field when a strong magnetic field is applied from the outside, and remains magnetized even when the external magnetic field disappears. In this case, each atom of matter is like a magnet. Iron (Fe) is a typical ferromagnetic substance.

Non-magnetic material (non-magnetic substance) refers to a substance with a weak magnetic property or a material with no magnetic property at all. And includes a paramagnetic material to be described later. The relative magnetic permeability is close to 1 and is hardly affected by the magnetic field.

A paramagnetic substance is a substance that magnetizes in the direction of a magnetic field when it is placed in a magnetic field and does not magnetize when the magnetic field is removed. These include aluminum, tin, platinum, and iridium. The magnitude of magnetization is proportional to the magnitude of the surrounding magnetic field, and the degree of magnetization is expressed by the magnetic susceptibility. The magnetic susceptibility is inversely proportional to temperature, which is called Curie's Law.

Conventionally, a rotor is installed near a bicycle rim of an aluminum material, and magnets are attached to the periphery of the rotor so that the N pole and the S pole are arranged alternately. By rotating the bicycle rim, The rotor is rotated in a non-contact manner as the rim is rotated by allowing the magnet around the rotor to be attracted by the magnetic action generated by the eddy current, and the rotor around the rotor used to generate the eddy current A generator that induces a current in the coil winding is developed by using a point at which the magnet of the rotor is rotated to place a coil winding around the magnet.

However, such conventional non-contact type generators have the following problems.

First, the aluminum bicycle rim is formed by joining the elongated rim members by bending the circular rim members, so that the joints in the rim making process are made of ferromagnetic iron, There is a problem that the phenomenon of sticking and dropping on the draw is repeated. This damages both the magnet and the rim, disrupts the uniform rotation speed of the rotor, sharply reduces the power generation efficiency, and causes a problem such as a large noise.

Second, such conventional non-contact type generators can not be used for rims made of ferromagnetic material. This is because the magnets installed around the rotor are attracted to the rim in order to induce eddy currents.

Third, such conventional non-contact type generators can not be used for rims made of non-metallic carbon. This is because there is no eddy current in the carbon rim.

Fourth, in order to induce an eddy current, an electromotive force is induced through a magnet attached to a rotor, and a braking force due to a load current is applied by driving a load. Thus, a slip phenomenon The speed of the rim can not keep up with the speed of the rim).

Fifth, since a current is induced by using a magnet attached to the rotor in order to induce an eddy current, a magnet attached to the rotor must be disposed close to the rim, and this acts as a spatial limitation, The cores used to do so will not be available. In other words, the core can not be installed due to the spatial restriction around the rotor, and therefore, the magnet formed by the magnet attached to the rotor does not have a core, and thus is largely lost in the air. Further, according to the eddy current principle, almost no eddy current is generated when the rim rotates at a low speed, and the rotational speed of the rotor itself is greatly reduced. If the power generation efficiency is extremely low, the electromotive force can not be induced at low speed.

In addition to the problem of power generation efficiency of such a generator, a part to be considered is a power storage technology that collects and converts electricity produced through a generator that generates a small amount of electric power and stores it in a battery. In other words, there is a need for a technology that minimizes the amount of electricity generated and consumes electricity as well as a small amount of electric power.

In addition, since a variety of generators are produced / distributed in the case of small portable generators, a power storage technology applicable to various types of generators possessed by users is required. Particularly, even if the same user is used, a plurality of different generators may be provided, or a power generation method of a portable generator used due to a device change may be changed. However, if a battery module corresponding to each generator It becomes work. However, most of the existing technologies are limited to AC generators, and as a result of the development of power storage technology, there is a lack of technology applicable to DC generators as well as AC generators. In addition, the conventional power storage technology does not have an active charging system for a multiphase structure generator having a coil-to-coil phase relationship for increasing the power generation efficiency of the generator.

Next, since the conventional battery module provides power to the external device using only the electric energy stored in the built-in battery, there is a limit in simultaneously charging the battery and using the external device. That is, in the conventional battery module, when the battery is discharged, the external device can not be used until the battery is charged to a certain level.

In addition, since the conventional LED lighting integrated bicycle generator uses the electric power generated from the generator directly connected to the LED lighting, when there is no need to turn on the LED lighting, the generated electric power is wasted, and the LED lighting is bright In the night when it is necessary to turn on, the speed of the bicycle is high and the LED lighting functions only when the amount of electricity generated by the generator is large. In the section where the actual road condition is bad or the length is curved and narrow, Is more urgently required in this section), the LED illumination could not function properly.

For this purpose, the inventor of the present invention has focused on a method of placing a battery between a generator and an LED lighting, charging the battery with electric power generated by the generator, and supplying the power of the battery to the LED lighting. However, Found that even though the speed of the bicycle was increased to increase the amount of electric power generated by the generator, most of the electric power was consumed in charging the battery, so that the LED illumination did not turn on properly.

Japanese Patent Application Laid-Open No. 10-2014-0062463 Patent Registration No. 10-1320295 Patent Registration No. 10-1471392 Japanese Patent Application Laid-Open No. 10-2014-0028427

SUMMARY OF THE INVENTION It is an object of the present invention to provide a generator for a bicycle which can be used for all kinds of rims and has a sufficient power generation efficiency.

 It is another object of the present invention to provide a battery module which is applicable to all portable generators including a bicycle generator and which can charge the battery regardless of alternating current and direct current and has a simple circuit structure and high charging efficiency .

The present invention also provides a battery module capable of using an external device irrespective of the storage amount of the battery when an external device is connected to the battery module and capable of operating the LED light most appropriately when the LED module is installed in the battery module .

In order to achieve the above object, the present invention provides a generator for a bicycle which is provided with a rotatable body usable in all types of rims, and which has a magnet for induction induction and a magnet for power generation separately.

More specifically, the present invention relates to a rotating body for use in a generator (20) installed at a relatively fixed position relative to a rim (10) of a rotating bicycle, the rotating body being disposed adjacent to or in contact with the rim And an eddy current induction magnet 35 is provided along the outer circumferential surface and one end of the rotary shaft 62 of the generator 60 is fixed to the center of the rotary body 30. [

At least a part of the outer circumferential surface of the rotating body 30 may be disposed on the outer side of the outer circumferential surface of the induction magnet 35. [

The side surface of the rotating body 30 may be inclined corresponding to the inclined surface of the rim 10.

A plurality of eddy current induction magnets 35 accommodated in the rotating body 30 may be provided so that the polarities toward the outer peripheral surface of the rotating body 30 are alternately arranged.

The eddy current induction magnet 35 accommodated in the rotating body 30 is inserted into the rotating body 30 from the outside of the rotating body 30 or embedded in the rotating body 30, (30) may cover the outer surface of the eddy current induction magnet (35).

The shape of the magnet accommodating portion 33 formed on the outer periphery of the rotating body 30 to accommodate the eddy current induction magnet 35 and the eddy current induction magnet 35 is angular, It is possible to prevent the magnet from rotating and flowing.

 A central body 37 having a relatively high rigidity is provided at the center of the rotating body 30 and a rotating shaft receiving portion A plurality of concave and convex structures are formed on the outer circumferential surface of the central body 37. The central body accommodating portion 31 formed in the center of the rotary body 30 has a shape corresponding to the central body, The corresponding concave-convex structures of the center body and the center body accommodating portion are engaged with each other, so that the center body and the rotating body can be rotated integrally.

The present invention also relates to a generator (20) installed at a relatively fixed position relative to a rim (10) of a rotating bicycle, wherein the generator (20) is disposed adjacent to or in contact with the rim (10) A rotating body (30) provided with the rotor; A rotating shaft (62) having one end fixed to the center of the rotating body (30); And a power generating unit (60) disposed at the other end of the rotating shaft (62).

The power generating unit (60) includes a case (70) installed at a position relatively fixed with respect to the rim (10); A core 66 fixed inside the case 70; A coil 68 wound around the core 66; And a power generating magnet 64 mounted on a rotating shaft disposed in the space surrounded by the core and the coil.

According to another aspect of the present invention, there is provided a method of installing a generator according to the type of a rim of a bicycle, the method comprising the steps of: arranging a generator such that an axis of the rotor and a shaft of the wheel are substantially perpendicular to each other; Disposing the generator so as to face the hub direction, and fixing the generator such that the side surface of the rotor is adjacent to or in contact with the side surface of the rim.

When installed on a bicycle comprising a wheel made of a ferromagnetic material or a rim of a paramagnetic material, the distance between the side surface of the rotating body and the rim may be 1 to 10 mm.

When the bicycle is mounted on a bicycle including a wheel made of a non-metallic rim that does not generate an eddy current, the generator can be fixed such that the upper side of the rotating body and the lower side of the rim are in contact with each other.

The present invention also includes an input terminal 100 to which the output of the generator 20 is connected; A constant voltage unit 200 including a rectifying unit 210 for rectifying the generator output inputted through the input terminal 100 to a direct current and a regulator 220 for outputting a rectified rectified current from the rectifying unit 210 at a constant voltage; And a charging unit 300 connected to the output terminal of the constant voltage unit 300. The charging unit 300 includes a battery 320 charged with a direct current of a constant voltage output from the constant voltage unit, A terminal 340 receiving power from at least one of the batteries 320 and a control circuit for controlling a current flowing between the output terminal of the constant voltage unit 320 and the terminal 340. [ Battery module.

The rectifier unit 210 includes a three-phase bridge rectifier circuit 213 and a two-phase rectifier circuit 212. When the alternator connected to the battery module is a single-phase alternator or a three-phase alternator, Phase rectifier circuit, and when the generator connected to the battery module is a two-phase alternating current generator or a direct current generator, its output terminal may be connected to the two-phase rectifying circuit.

Wherein two output terminals of the single-phase AC generator are connected to two of the three input terminals 5, 6 and 7 of the three-phase bridge rectifier circuit, and two output terminals of the DC generator are connected to the respective input terminals 1, 4) and the center tap input terminal (2, 3).

When the external device is connected through the terminal 340, the control circuit can simultaneously supply the direct current output from the constant voltage unit to the external device and the battery.

The charging unit 300 further includes a second load terminal or a second load 360. The control circuit supplies power of the battery to the LED lighting unit 360 when the second load is applied, The battery 320 can be supplied with a direct current output from the battery 320.

Here, the control circuit does not supply the direct current output from the constant voltage unit to the battery when the battery is fully charged.

The charging unit 300 further includes a second load terminal or a second load 360. When the battery is fully charged and an external device is not connected to the terminal 340, Can be supplied to the second load (360).

The charging unit 300 further includes a second load terminal or a second load 360. The control circuit controls the second load 360 to supply the direct current output from the constant voltage unit when the remaining amount of the battery is insufficient, .

The second load may be an LED illumination.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to efficiently generate power even when installed on a bicycle using any kind of rim.

That is, in the case of the rim made of the ferromagnetic material, the rotating body can be rotated by the attractive force of the magnet. In the case of the rim made of the paramagnetic body, the rotating body can be rotated using eddy currents generated in the paramagnetic body. In the case of a rim of a material which is not electrically energized, the rotating body can be rotated in a semi-contact manner, so that it is possible to install all of the iron rims, aluminum rims and carbon rims circulating in the market.

Further, according to the present invention, it is possible to solve the problem caused by the rim desorption phenomenon of the magnet generated when the aluminum rim is used.

In addition, according to the present invention, it is possible to prevent the generator from interfering with the wire spoke of the wheel due to the shape of the inclined surface of the rotating body.

Further, according to the present invention, since the rotating body has high impact absorption rate, abrasion resistance and rolling friction coefficient, it can be used both in noncontact type, semi-contact type and contact type, and has a high rigidity center body, There is an advantage.

Further, according to the battery module of the present invention, the generators can be used for generators of various power generation schemes, while simplifying / minimizing the rectifier circuit structure and elements by integrating different rectification methods, so that the unit cost is low and compact.

In addition, according to the battery module of the present invention, when an external device is connected, the external device can be properly supplied with power regardless of the remaining amount of the battery, so that the user can use the external device without any inconvenience.

Further, according to the battery module of the present invention, when the use of the LED illumination is required, the LED illumination can be reliably utilized by suitably supplying power to the LED illumination regardless of the remaining amount of the battery.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG.

1 is a perspective view showing a state where a generator of the present invention is installed close to or in contact with a rim of a bicycle,
2 is an exploded perspective view of a rotating body used in the generator of the present invention,
3 is a perspective view of a power generating portion of a generator according to the present invention,
4 is a side view of the generator of the present invention,
Fig. 5 is a sectional view taken along the line AA of Fig. 4,
6 is a conceptual view of a battery module according to the present invention,
7 is a circuit diagram of a battery module according to the present invention,
FIG. 8 is a flowchart showing the control method of the control device of the battery module of the present invention,
9 is a flowchart showing a control method of the control device of the battery module of the present invention in detail, and
FIG. 10 is a flowchart illustrating a control method of a control device of a battery module provided with LED lighting in detail.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

It is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to inform.

FIG. 1 is a perspective view showing a state where a generator of the present invention is installed close to or in contact with a rim of a bicycle, FIG. 2 is an exploded perspective view of a rotating body used in the generator of the present invention, Fig. 4 is a side view of the generator of the present invention, and Fig. 5 is a cross-sectional view taken along the line AA of Fig.

[Generator installation type and location]

The generator 20 of the present invention is mounted on the bicycle frame so as to be close to or in contact with the rim 10 of the bicycle wheel as shown in Fig. That is, the generator is fixed on the bicycle frame, and the rim 10 of the bicycle wheel rotates in a state of being adjacent to the generator 20 or in contact with the generator when the bicycle wheel rotates. The generator 20 has a rotating body 30, which will be described later, and a power generating unit 60, which will be described later, disposed at the lower portion of the generator 20.

The rotational axis of the rotating body 30 is substantially perpendicular to the axis of the bicycle wheel. That is, the circumferential direction of rotation of the side surface of the rotating body and the circumferential direction of rotation of the side surface of the rim facing the rotating body coincide with each other.

[Structure and rotation principle of rotating body]

It is the portion of the rotating body 30 of the generator 20 that abuts or contacts the rim 10 of the bicycle wheel. Referring to Fig. 2, the rotating body 30 of the bicycle has a substantially truncated conical shape. That is, the sectional view of the rotating body becomes a trapezoid. However, the side surface of the rotating body does not necessarily have to be the same as the side surface shape of the truncated cone. That is, the present invention does not exclude the formation of irregularities in the circumferential direction or the up-and-down direction on the side surface.

This is because the rim of the bicycle wheel becomes gradually narrower toward the hub, which is the center of the wheel, because the truncated cone is formed to have a trapezoidal cross-sectional shape. That is, as the rim of the wheel is inclined, the side surface of the rotating body facing the rim is inclined so as to correspond to the inclination of the rim, so that the power generation portion 60 provided at the lower portion of the rotating body is installed away from the wire spokes of the bicycle wheel (See FIG. 4).

However, the shape of the rotating body is not necessarily limited thereto, and it may have a cylindrical shape, a polygonal columnar shape, or a polygonal prism shape depending on the shape of the rim and the method of storing the magnet.

It is preferable that the rotating body 30 is made of a synthetic resin material, particularly, it is made of a material having a good impact absorption ratio and a high abrasion resistance and a high rolling friction coefficient. Materials such as tires may be applicable. Silicon series may also be used, although the hardness is weak.

As shown in the figure, an equal-interval magnet accommodating portion 33 is formed radially around the rotating body, and the eddy current induction magnet 35 is accommodated in the magnet accommodating portion 33, respectively. A plurality of eddy current induction magnets 35 are accommodated in the magnet accommodating portion 33 so that N and S poles are alternately arranged in the direction in which each magnet faces the side of the rotator. When the N pole and S pole are arranged alternately, the eddy current is generated in the rim so that the rotating body can rotate well. The magnet may be a neodymium magnet, and it may be constituted of about six to twenty in consideration of various factors such as an installation environment. The eddy current induction magnet 35 may be inserted into the magnet accommodating portion 33 after the rotation body is manufactured or may be integrally inserted into the magnet accommodating portion 33 by an insert injection method. The magnet accommodating portion 33 and the eddy current induction magnet 35 have an angular structure as shown in FIG. 2, so that they are not rotated when they are inserted once and their positions are maintained. In particular, when the magnet accommodating portion 33 and the eddy current induction magnet 35 are formed asymmetrically as shown in the trapezoidal column shape as shown in the drawing, the eddy current induction magnet 35 is hollow in the magnet accommodating portion 33 The phenomenon can be prevented.

A rigid central body 37 is fitted to the rotation center of the rotating body. A central body receiving portion 31 having a shape corresponding to that of the center body 37 is formed at the center of the rotating body 30. The outer surface of the central body 37 and the inner surface of the central body accommodating portion 31 are each provided with concavities and convexities to prevent the rotating body 30 and the center body 37 from loosening. A relatively rigid center body (37) is fitted in the center of rotation of the rotating body to support the rotation of the rotating body which is relatively soft. In the case of constructing a rigid core body at the center of the rotating body rather than when all of the rotating body is made of a soft material, it is possible to greatly reduce the factor of rotation of the rotating body even if the rotating body is elastically deformed.

The rotation center of the center body 37 is formed with a rotation shaft receiving portion 39 in which a rotation shaft 62 to be described later is formed. Therefore, when the rotating body rotates, the central body and the rotating shaft move integrally and rotate.

The rotating body 30 is rotated about the rotating shaft 62. [

According to the present invention, when the rim material of the bicycle wheel is made of iron having a ferromagnetic material, attraction is exerted between the eddy current induction magnet 35 of the rotating body 30 and the rim 10, The eddy current induction magnet is pulled by the attraction force and the rotating body 30 is also rotated to induce rotation of the rotating body. Although the rotating body may come into contact with the rim due to the attractive force of the eddy current induction magnet 35 in the rotating body 30, the surface of the rotating body is made of a material having high abrasion resistance and rolling frictional force It is possible to rotate well together with the rotation of the motor. Therefore, in the case of the generator and rotor structure of the present invention, the generator can be used in non-contact type and / or contact type in the rim made of iron. This is because the energy loss is small as a noncontact type due to the use of the attraction force of the magnet, and even when the surface of the rotating body touches the surface of the rim due to the attraction of the magnet, it is semi-contact type not strong contact, Much less. That is, the work force method can be applied in parallel with the semi-contact method. According to the attraction method, the distance between the rotating body and the rim can be 1 to 10 mm.

When the rim material of the bicycle wheel is made of aluminum, the magnetic flux of the eddy current induction magnet 35 of the rotating body 30 induces an eddy current on the surface of the rim 10 as the rim rotates, The rotating body 30 also rotates in a noncontact manner as the rim 10 rotates by pulling the magneto 35 for inducing eddy current by acting as a magnetic force again. At this time, there may occur a case where the eddy current induction magnet 35 in the rotating body 30 strikes the rim due to the presence of the ferromagnetic substance at one portion (joint portion) along the circumference of the rim 10, The side surface of the rotating body 30 having the rolling frictional force hits the rim and receives the rotational force of the rim, so that the rotational force of the rotating body is not lost. As a result, the problems occurring in the above-described conventional non-contact type generator are solved at once. Therefore, in the case of the generator and rotor structure of the present invention, the generator can be used in a non-contact manner to a rim made of a paramagnetic material such as aluminum. Since this is a non-contact type, energy loss is much less than conventional full contact generators. According to the eddy current method, the distance between the rotating body and the rim can be 1 to 10 mm.

Also, when the rim material of the bicycle wheel is made of a material such as carbon which is not induce eddy current, the side surface of the rotating body 30 is rotated in semi-contact with the side surface of the rim. At this time, the side surface of the rotating body is set so that the lower side of the rim is in contact with the surface. Therefore, in the generator and rotor structure of the present invention, since the generator can be used semi-contactly with a rim made of a material such as carbon which is not a ferromagnetic material or a paramagnetic material, It is possible to rotate the rotating body in a semi-contact or non-contact manner.

[Structure of Power Generation Section]

Next, the power generating unit 60 of the present invention will be described in detail with reference to FIGS. 3 to 5. FIG.

The rotating shaft 62 fixed to the center of the rotating body 30 extends to the power generating portion 60. The power generation unit 60 includes a case 70 fixed to a frame or the like of a bicycle and a core 66 fixed inside the case 70. [ For example, the case 70 may have a cylindrical shape, and the core in the case may have a cylindrical shape on the outer surface as shown in FIG. A coil 68 is wound around the core 66.

Since the power generation section is driven based on the rotational kinetic energy interlocked by the bicycle, it is necessary to achieve a high output by reducing the size and weight.

The core 66 may have a diameter of about 20 to 50 mm, and the coil bundle may have about 2 to 12 coil bundles. The height of the core is about 20 to 50 mm.

The diameter of the coil 68 is about 0.15 to 0.4 mm. These cases, cores and coils are fixed.

A rotating shaft 62 is disposed in a space surrounded by the core 66 and the coil 68 and rotates. As shown in the figure, the power generating magnet 62 is formed on the rotary shaft 62 and rotates together with the rotation of the rotary shaft. The power generation magnet 62 can be a neodymium magnet, and the number of magnet poles can be set from 2 to 8 poles.

The shape of the generator can consist of single-phase or three-phase depending on the number of magnetic poles and the number of coil bundles.

 According to the present invention, the magnet (35) provided in the rotating body and the magnet (64) provided in the rotating shaft (62) for inducing the electromotive force are separately formed in order to induce the eddy current. Since a coil can be installed, a magnetic path is formed, so that the power generation efficiency is superior to that of a conventional non-contact generator.

[Battery module]

FIG. 6 is a conceptual diagram of a battery module according to the present invention, FIG. 7 is a circuit diagram of a battery module according to the present invention, FIG. 8 is a flowchart showing a control method of the control device of the battery module of the present invention. FIG. 10 is a flowchart illustrating a control method of a control device of a battery module in detail.

Referring to FIG. 6, the present invention provides a battery module that is applicable to all portable generators including a bicycle generator, and can generate and charge current regardless of alternating current and direct current. In the drawing, a battery module is installed below the generator 20, which is installed separately. Therefore, the user can detachably use the battery module of the present invention for various generators of different types. It goes without saying that the present invention does not exclude a battery module that is integrally installed in a generator.

The generator shown in Fig. 6 is not limited to a non-contact type bicycle generator that can be installed on a bicycle but can be applied to a wind power generator and a solar power generator, and can also contribute to an outdoor small power generator and self-power generation.

The PCB includes an input terminal 100 to which the output terminal of the generator 20 is connected, a rectifier 200 connected to the input terminal to convert the power generated by the generator into a desired constant voltage DC current, And controls the power supplied to the external device connected through the LED lighting 360 or the USB terminal 340. [

7, the battery module according to the present invention mainly includes an input terminal 100 to which an output terminal of the generator 20 is connected, and an input terminal 100 to which a generator output current inputted through the input terminal 100 is connected to a constant- A charging unit 300 for charging a battery 320 connected to an output terminal of the constant voltage unit and supplying power to various devices 340 and 360;

The battery module of the present invention is applicable to various types of generators. In other words, the AC or DC power of the waveforms generated from the output terminals of various power generation systems can be converted into the constant current. If all of the rectifying circuits corresponding to different power generation schemes are implemented, a battery module having the above functions can be manufactured. However, this requires a complicated circuit and a large number of rectifying elements, which causes a rise in cost and a problem that the volume of the battery module becomes large. In other words, such a structure is difficult to meet the demand for compact and lightweight, clean appearance, and low price required for bicycle accessory products.

Accordingly, the present invention provides a rectifying part 210 that minimizes the use of the rectifying circuit and elements and has a high rectifying efficiency. Accordingly, the rectifying part 210 of the present invention includes a two-phase rectifying circuit 212 having a center tap and a three-phase bridge rectifying circuit 213. The two-phase rectifier circuit 212 includes four input terminals 1, 2, 3, and 4, and the three-phase rectifier circuit 213 has three input terminals 5, 6, Respectively. The middle two inputs (2,3) of the four inputs of the two-phase rectifier are the center tap inputs.

The two-phase rectifier circuit 212 is connected to four output ends of the two-phase alternating-current generator and rectified. The three-phase bridge rectifier circuit 213 is connected to three output terminals of the three-phase alternating current generator and rectified.

In the case of a single-phase AC generator, two output terminals are respectively connected to two input terminals 5/6, 5/7, 6/7 of three input terminals 5, 6, 7 of a three-phase bridge rectifier circuit 213 Can be used. According to this connection method, four diodes electrically connected to the single-phase alternating-current generator among the six rectifying diodes D1 to D6 of the three-phase bridge rectifying circuit 213 are utilized for rectification, which functions as a single-phase bridge rectifying circuit do.

On the other hand, even in the case of a DC generator, it is inputted through the two-phase rectifier circuit 212 without a separate input terminal. The first output terminal of the DC generator is connected to one of the input terminals 1 and 4 and the second output terminal is connected to one of the center tap input terminals 2 and 3 (for example, 1/2, 1/3, 4/2 , 4/3). When the DC generator and the two-phase rectifier circuit are connected as described above, the number of the rectifier diodes through which the DC current flows can be minimized and there is little power loss.

According to the structure of the input stage 100 and the rectifying unit 210 described above, it is possible to rectify various types of generators by only a minimum rectifying circuit.

In the present invention, the output voltage of the alternator is about 0 to about 28 V, and the output voltage of the direct current generator is about 0 to about 40 V DC. However, the present invention is not limited thereto. The allowable power can be adjusted according to the power generation requirements of the generator and the generation environment.

The switching regulator 220 is connected to the output terminal of the rectifier 210 described above. The regulator 220 includes smoothing elements, and the input is switched between 7V and 40V and output at a 5V rated voltage.

The rectifying part 210 and the regulator 220 constitute the constant voltage part 200 of the present invention.

The output terminal of the constant voltage unit 200 is connected to a charging unit 300 having a control circuit. The charging unit includes a battery 320, a USB terminal 340 to which an external device can be electrically connected, an LED illumination 360 for illuminating the front of the bicycle, and red and green indicator LEDs for indicating the state of charge of the battery . Control of the power supply between these components is implemented as a control circuit of the charging section.

The charging and discharging control by the above-described control circuit will be described below with reference to Figs. 8 to 10. Fig.

Referring to FIG. 8, if an external device is connected to the USB terminal when power is not generated in the generator, the battery supplies power to the external device.

If power is generated from the generator, and an external device is not connected to the USB terminal, the power of the generator is supplied to the battery to charge the battery.

If power is generated from the generator and an external device is connected to the USB terminal, the power of the generator is supplied both to the battery and external devices of the USB terminal. At this time, when the battery is fully charged, the power of the generator is no longer consumed in the battery, so the power of the generator will be supplied to the external device. Meanwhile, the power of the battery itself can be supplied to the USB terminal according to the degree of charging of the battery.

More details will be described with reference to FIG.

Referring to FIG. 9, when no external device is connected to the USB terminal 340, power is supplied from the generator to the battery when the power is supplied from the output terminal of the constant voltage unit 200, The battery is then charged (in this state the red indicator LED is lit). If the battery is completely charged, the LED lighting unit 360 supplies the power of the output terminal of the constant voltage unit 200 to the LED lighting unit so that the battery is overcharged and overheated (in this state, the green indicator LED Is turned on).

Next, when an external device is connected to the USB terminal 340 but power is not generated from the generator, it is checked whether the battery 320 has a remaining amount. When there is a remaining amount in the battery 320, To the terminal 340 to which the terminal 340 is connected.

Next, when an external device is connected to the USB terminal 340 and electric power is generated from the power generator, the power supply mode is changed according to the remaining amount of the battery 320.

First, there is no remaining amount in the battery 320 (first case). At this time, the power supplied from the output terminal of the constant voltage section is supplied to the battery and the external device. According to this control method, although the charging speed of the battery 320 may be slowed down, the user supplies power to a connected external device so that the user does not inconvenience to use the external device. If only the battery 320 supplies the output power of the constant voltage unit, the external device can not be used until the battery 320 is charged to a certain level. If the output power of the constant voltage unit is supplied only to the external device, Can result in destruction. Therefore, in the present invention, the output power of the constant voltage unit is controlled to be supplied to both the battery 320 and the terminal 340.

Next, the remaining amount of the battery 320 is not fully charged (second case). At this time, as shown in Fig. 9, it is possible to control the output power of the constant voltage unit to be supplied to both the battery 320 and the terminal 340, as in the case where there is no remaining amount in the battery.

At this time, the output power of the battery 320 may be supplied to the external device. In such a state, when the output power of the constant voltage part is lower than the power required by the external device, the power supplied from the battery may be consumed together. Thus, when the output power of the battery is simultaneously supplied to the external device, the power can be stably supplied to the external device.

However, it goes without saying that the output power of the constant voltage unit may be supplied to charge the battery 320, and the power of the battery 320 may be supplied to the external unit. In this method, power is supplied to an external device from a battery whose current is relatively stable, so that the external device can be used stably.

Next, the battery 320 is fully charged (third case). At this time, the power supply to the battery 320 is cut off. Therefore, the output power of the constant voltage unit is supplied to the external device.

At this time, the output power of the battery 320 may also be supplied to the external device. In such a state, when the output power of the constant voltage part is lower than the power required by the external device, the power supplied from the battery may be consumed together. Thus, when the output power of the battery is simultaneously supplied to the external device, the power can be stably supplied to the external device. Of course, if the amount of power charged in the battery drops in this state, it will be controlled as in the case of the second case.

Referring to FIG. 10, when the user turns off the LED lighting 360, power is generated from the generator, and when power is being supplied from the output terminal of the constant voltage unit 200, the power is supplied to the battery , So that the battery is charged (in this state, the red indicator LED is lit). When the battery is fully charged, the power of the output terminal of the constant voltage unit 200 is supplied to the LED illumination unit 360 to prevent the battery from being overcharged and overheated, (In this state, the green indicator LED is lit). 9, when the external device is connected to the terminal 340, the power of the output terminal of the constant voltage unit 200 is supplied to the external device 300, as described above with reference to FIG. 9, .

Next, when the user does not produce electric power from the generator even though the LED lighting 360 is turned on, it is checked whether the battery 320 has a remaining amount. When the remaining amount is present in the battery 320, And supplies it to the illumination unit 360.

Next, when the user generates power from the generator in a state in which the LED lighting 360 is turned on, the power supply scheme is changed according to the remaining amount of the battery 320. [

First, there is no remaining amount in the battery 320. At this time, the power supplied from the output terminal of the constant voltage unit is preferentially supplied to the LED illumination unit 360. This is because it is presumed that the user has switched on the LED lighting 360 to mean that there is a necessity of using the LED lighting 360 at this time when the power supplied from the output terminal to the battery is partially supplied to the battery 320 There is a problem that the LED illumination 360 can not irradiate light with desired illumination. Therefore, in this case, the power of the remaining battery output terminal can be supplied to the battery only when the power supplied from the output terminal to the battery is sufficient to light the LED illumination 360 to a desired illuminance.

Next, the remaining amount of the battery 320 is not fully charged. At this time, the output power of the constant voltage unit is supplied for charging the battery 320, and the power of the battery 320 is supplied to the external equipment. This method is for securing the brightness of the LED illumination 360 by supplying power to the LED illumination 360 in a relatively stable current capacity battery.

Next, the battery 320 is fully charged. At this time, the power supply to the battery 320 is cut off to protect the battery 320. Therefore, the output power of the constant voltage unit is supplied to the external device. In addition, the electric power charged in the battery is also supplied to the LED lighting 360 together. This is to secure the illuminance of the LED illumination 360 by supplementing the power of the battery immediately when the situation of insufficient use of the LED illumination 360 as the output power source of the constant voltage unit occurs.

The LED lights 360 installed in FIG. 10 can be installed integrally in the battery module, or can be installed in a detachable manner. It is needless to say that another external device can be connected to the connection terminal used in the detachable type installation, in addition to the LED lighting 360. An external device that needs to be controlled or controlled in such a manner as shown in FIG. 10 may be installed in such a connection terminal. That is, in the above-described embodiment, the power supply control method shown in FIG. 9 is applied to general external devices and the power supply control method shown in FIG. 10 is applied to the LED illumination. May be applied to LED lighting, or the power supply control method shown in Fig. 10 may be applied to general external devices. Therefore, the battery module of the present invention may have both a first USB terminal conforming to the power supply control method of FIG. 9 and a second USB terminal conforming to the power supply control method of FIG. 10, Of course, can be used with LED lighting installed.

For reference, the battery charging described above can be performed by reducing the output voltage of the constant voltage unit from 5V to 4.2V.

In addition, according to the battery module of the present invention, a power source is suitably supplied to an external device irrespective of the remaining amount of the battery, so that the user can use the external device without any inconvenience, and appropriately supplies power to the LED light regardless of the remaining amount of the battery You can definitely take advantage of LED lighting when you need to use LED lighting.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it can be done. Although the embodiments of the present invention have been described in detail above, the effects of the present invention are not explicitly described and described, but it is needless to say that the effects that can be predicted by the configurations should also be recognized.

10: rim
20: generator
30: rotating body
31:
33: Magnet accommodating portion
35: Eddy current induction magnet
37: centromere
39:
60:
62:
64: Power generating magnet
66: Core
68: Coil
70: Case
100: input
200: constant voltage section
210: rectification part
212: Two-phase rectifying circuit
213: Three-phase bridge rectifier circuit
220: Regulator
300:
320: Battery
340: USB terminal
360: LED lighting

Claims (9)

An input terminal 100 to which an output terminal of the generator 20 is connected;
A constant voltage unit 200 including a rectifying unit 210 for rectifying the generator output inputted through the input terminal 100 to a direct current and a regulator 220 for outputting a rectified rectified current from the rectifying unit 210 at a constant voltage; And
And a charging unit 300 connected to an output terminal of the constant voltage unit,
The charging unit 300 includes a battery 320 charged with a direct current of a constant voltage output from the constant voltage unit and a terminal 340 receiving power from at least one of a direct current output from the constant voltage unit or the battery 320 And a control circuit for controlling a current flowing between the output terminal of the constant voltage section, the battery 320 and the terminal 340,
The rectifier 210 includes a three-phase bridge rectifier circuit 213 and a two-phase rectifier circuit 212,
When the generator connected to the input terminal 100 is a single-phase alternator or a three-phase alternator, the output is connected to the three-phase bridge rectifier circuit,
And the output terminal is connected to the two-phase rectifier circuit when the generator connected to the input terminal 100 is a two-phase alternator or a direct current generator.
delete The method according to claim 1,
The two output terminals of the single-phase ac generator are connected to two of the three input terminals 5, 6 and 7 of the three-phase bridge rectifier circuit,
Wherein the two output terminals of the DC generator are connected to any one of the input terminals (1, 4) of the two-phase rectifier circuit and one of the center tap input terminals (2, 3).
The method according to claim 1,
Wherein the control circuit simultaneously supplies a direct current output from the constant voltage unit to an external device and a battery when an external device is connected through the terminal.
The method according to claim 1,
The charging unit 300 further includes a second load terminal or a second load 360,
Wherein the control circuit supplies the electric power of the battery to the second load (360) when the second load is applied, and supplies the direct current output from the constant voltage portion to the battery (320).
The method according to claim 4 or 5,
Wherein the control circuit does not supply a direct current output from the constant voltage unit to the battery when the battery is fully charged.
The method according to claim 1,
The charging unit 300 further includes a second load terminal or a second load 360,
Wherein the control circuit supplies a direct current output from the constant voltage unit to the second load (360) when the battery is fully charged and an external device is not connected to the terminal (340).
The method according to claim 1,
The charging unit 300 further includes a second load terminal or a second load 360,
Wherein the control circuit supplies a direct current output from the constant voltage unit to the second load when the remaining amount of the battery is insufficient.
The method according to claim 5, or 7 or 8,
Wherein the second load is an LED illumination.

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