KR20130003788A - Wind power generator using street lamp - Google Patents

Abstract

PURPOSE: A wind power generator attached to a street lamp is provided to produce environment-friendly electricity to the street lamp. CONSTITUTION: A wind power generator attached to a street lamp(100) comprises a separated support(200), a generator(300), a control unit, and a battery(500). The street lamp comprises a post(10) and a lamp(20). The support can be separately connected to one side of the post. The rotary unit is installed to the support. The generator is attached to the support, and converts rotary energy into electric energy. The control unit controls the charging and discharging of the electric energy. The battery supplies electricity to the street lamp by charging and discharging the electric energy based on the signal from the control unit. [Reference numerals] (AA) Wind

Description

Wind power generator using street lamp

The present invention relates to a wind generator using a street lamp, and more particularly, to a wind generator using a street lamp for supplying power to the street lamp by installing a wind generator in the conventional street lamp to produce electrical energy.

As the price of oil, the fossil fuel, increases, and environmental pollution due to carbon emissions, interest in the production of environmentally friendly electric energy using wind power is increasing. Typically, a wind turbine is a device that obtains rotational energy in accordance with the rotation of the blades by the wind and converts it into electrical energy using electromagnetic induction.

On the other hand, the conventional street lamp 100 is installed on the road, highway, or outdoor rest space, in order to supply power to the street lamp 100, electricity supply by a power line is required. In this case, in order to stably receive power supplied to the street lamp 100, there is a method of connecting electricity by a conventional power line or supplying electricity by a battery.

Power supply by power lines undermines the aesthetics of power cables and is far from environmentally friendly energy of low carbon green growth. In addition, the electricity supplied by the battery may mainly use solar heat, but the solar heat has a problem that the electricity supply may not be smooth due to the change of weather.

Therefore, in the technical field to which the present invention belongs, it has been required to develop an invention that can provide a stable electricity supply while using a conventionally built street light.

Accordingly, the present invention has been made to solve the problems described above, and has an object to provide an invention that can supply electric power to street lamp lighting by producing environmentally friendly electric energy by wind while using a conventional street lamp. .

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

The object of the present invention described above is a street lamp 100 having a support 10 and a lamp 20; A detachable separating supporter 200 coupled to one side of the support 10; A wind generator 300 supported by the separating support 200 and converting rotational energy by wind power into electrical energy; Control means 400 for controlling charging and discharging of electrical energy; And a battery 500 for supplying electric power to the street lamp 100 by charging and discharging electrical energy based on a signal from the control means 400. Can be.

In addition, the separation support 200 is characterized in that it comprises a; rotating means 210 to allow the wind generator 300 to rotate relative to the support 10 in accordance with the direction of the wind.

In addition, the separation support 200 is characterized in that the coupling is formed around the support 10 by the flange 225 means formed on both sides or the coupling groove 221 formed on one side and the coupling protrusion 223 formed on the other side. .

In addition, the wind generator 300 includes a blade 310 for generating rotational energy by the wind; A shaft 320 rotating corresponding to the rotation of the blade 310; A rotor 331 fixed to the shaft 320 and rotating; And a stator 333 which generates electric energy corresponding to the rotation of the rotor 331.

In addition, the rectifier 340 for converting the induced electromotive force induced by the stator 333 to a DC voltage; characterized in that it further comprises.

In addition, the rotor 331 and the stator 333 is characterized in that consisting of a permanent magnet 30 or a coil 40.

In addition, the control means 400 is to charge the battery 500 by using the electric energy during the day by detecting the day or night, and supplies the electric energy charged in the battery 500 to the lamp 20 at night. It is done.

In addition, the control means 400 detects the amount of change in the current of the battery 500 to determine whether the battery 500 is buffered, and when the battery 500 is fully buffered, it is characterized in that the supply of electric energy.

And, the rudder 230 to easily rotate the wind generator 300 corresponding to the direction of the wind; characterized in that it further comprises.

According to the present invention as described above, by supplying power by combining a wind power generator, which is easy to install in a conventional street light, there is an effect that can produce environmentally friendly electric energy corresponding to low carbon green growth.

In addition, according to the present invention there is an effect that it is possible to reduce the cost of replacing the conventional street light by easily combining the wind power generator with the conventional street light.

In addition, according to the present invention, there is an effect that can improve the life of the battery due to the periodic charging / discharging of the battery.

The following drawings, which are attached to this specification, illustrate one preferred embodiment of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
1 is a perspective view of a wind generator using a street lamp according to the present invention,
2 and 3 are combined perspective views of the separation support according to the present invention,
4 is a block diagram of a generator and control means according to the present invention,
5 is a cross-sectional view of the generator and the separating support according to the present invention.

Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention. In addition, the embodiment described below does not unduly limit the content of the present invention described in the claims, and the entire structure described in this embodiment is not necessarily essential as the solution means of the present invention.

<Configuration of Wind Power Generator>

As shown in FIG. 1, the wind generator using the street lamp according to the present invention is composed of a street lamp 100, a separate support 200, a wind generator 300, a control means 400, and a battery 500. In addition, when the wind direction is changed, the wind generator 300 preferably further includes a rudder 230 to rotate in accordance with the wind direction. Hereinafter, the configuration of the wind generator using the street lamp according to the present invention will be described in detail with reference to FIGS. 1 to 5.

Street light 100 as shown in Figure 1 is already built on the roadside or road. The street lamp 100 is composed of a strut 10 and a lamp 20 supporting the street lamp 100 to help the pedestrians to walk safely and to drive the driver safely.

The strut 10 may have an intensity capable of supporting the entire street light 100, but it is preferable to select an appropriate strength in consideration of a change in wind, typhoon, height of the street light 100, or temperature. For example, environmentally friendly street lights can be installed by using recyclable aluminum or galvanized steel rather than stainless steel, which causes diffuse reflection.

The lamp 20 may be manufactured by using a sodium lamp, a metal lamp, a three-wavelength lamp, or the like as a pedestrian walking safely or allowing the driver to drive safely by securing a view. Since the lamp 20 should be illuminated mainly at night and at dawn, it is preferable to use a lamp with low power consumption.

On the other hand, in order to generate the power consumed by the lamp 20 in the present invention by converting the rotational energy by the wind into electrical energy to supply it to the lamp 20 to produce environmentally friendly energy.

Separation support 200 according to the present invention is preferably separated into two, is coupled to correspond to each other on both sides of the post 10 of the street lamp 100 is already installed at the time of installation. Therefore, by combining the wind power generator according to the present invention to the conventional street lamp 100 to produce environmentally friendly energy and using the electric energy generated by the wind generator as a street lamp power.

The blade 310 to be described later may produce a greater amount of electrical energy as the rotational force is higher and the higher the rotational force when the wind blows from the front. Since the direction of the wind can be changed depending on the weather or time, the separation support 200 is preferably provided with a rotating means 210 that can change the direction of the blade 310 in accordance with the direction of the wind. At this time, the rotating means 210 may be implemented by an example as a bearing, but if necessary, the coupling means 220 and the support 10 to be described later without the rotating means 210 may be coupled to rotate.

In the case of using a bearing, the separation support 200 has a fixing stand 240 fixed by being coupled with the support 10, and the bearing is coupled to the outside of the fixing stand 240. Coupling means 220 is coupled to the outside of the bearing can be easily rotated by the rudder 230 and the wind generator 300 and the coupling means 220 in accordance with the direction of the wind.

On the other hand, the separation support 200 is preferably separated into two, as shown in Figures 2 and 3 to facilitate coupling to the conventional street light (100). The rotating means 210 and the fixing stand 240 separated in two directions may be coupled to each other by a conventional coupling groove and coupling projection, and may be coupled to each other by various coupling means.

At this time, the fixing stand 240 is coupled to the outer circumferential direction of the support (10). Here, the diameter of the support 10 may be different depending on the height, and both sides of the support 10 coupled to the fixing table 240 may have different diameters.

Therefore, the inner side of the holder 240 is configured to correspond to the diameter of the tapered strut 10 and the outer diameter of the holder 240 is not provided with the rotating means 210 or the rotating means 210 coupling means 220 It is preferable to configure the same to be combined with the wind to facilitate the rotation.

As described above, the supporter 240 is coupled to the outside of the support 10, and the rotation means 210 is easily coupled to the outside of the supporter 240 as needed, or directly without the rotation means 210. Coupling means 220 may be coupled to rotate.

As shown in FIG. 2, the separation support 200 is coupled to each other by the coupling groove 221 and the coupling protrusion 223 which are the coupling means 220. The coupling groove 221 is provided on one side and the coupling protrusion 223 is provided on the other side so that the coupling can be fitted to each other when combined with the support 10.

On the other hand, as shown in Figure 3 may be coupled by a flange 225, the coupling means 220. The flanges 225 formed on both sides are coupled to each other about the support 10 by screws 225a and bolts 225b. At this time, the selection of the coupling groove 221 or the flange 225 may be preferably selected according to the site conditions (wind power generator weight or installation height of the wind generator).

On the other hand, by providing a rudder 230 on one side (the opposite side where the blade is located) of the separation support 200, the wind generator 300 can be easily rotated by the wind when the wind direction is changed. In this case, the rudder 230 may be manufactured integrally with one side of the separation support 200 or may be separately manufactured to be shape-fitted at the work site.

Wind generator 300 according to the present invention is coupled to one side of the separation support (200). In this case, as shown in FIG. 5, the cross section of the separation support 200 has a 'b' shape, and one side of the 'b' shape and the coupling protrusion 360 protruding from the lower side of the wind generator 300 form a shape. To combine.

On the other hand, the wind generator 300 converts the rotational energy by the wind into electrical energy. Wind generator 300 is roughly composed of blade 310, shaft 320, generator 330, and commutator 340 to produce electrical energy.

Here, the blade 310 generates the rotational energy by the wind. That is, the rotational force is generated by the wind. The generated rotational force rotates the shaft 320 as shown in FIG. In order to smoothly rotate the shaft 320, the rotation means 321 is installed on the left and right sides of the shaft 320.

The rotating means 321 may use a bearing means, the left bearing 321a located on the left side is located at the housing stop of the wind generator 300, and the right bearing 321b located on the right side supports the shaft 320. It is coupled with the support 323.

Meanwhile, the shaft 320 rotating by the rotational force of the blade 310 rotates the rotor 331 fixed to the shaft 320. Induction electromotive force is induced to the stator 333 fixed inside the wind generator 300 by the rotation of the rotor 331.

At this time, induced electromotive force is induced by electromagnetic induction phenomenon and is induced when the conductor moves in the magnetic field. The induced electromotive force is expressed by Equation 2 by applying Faraday's law, Equation 1 below, to the generator.

:유도 기전력, N : 턴수,

: 자속,

:도체의 회전속도,

:도체 길이,

:자계와 도체가 이루는 각도,

: 자계
here,

Induced electromotive force, N: number of turns,

Magnetic flux,

: Rotational speed of the conductor,

Conductor length,

: The angle between the magnetic field and the conductor,

Magnetic field

As shown in [Equation 2], the induced electromotive force is different from the induced voltage according to the rotational speed, so by rotating the wind generator 300 in accordance with the direction of the wind described above to produce the optimum power organically corresponding to the change in the wind direction Can be.

The generator 330 using the rotor 331 and the stator 333 may be configured as the coil 40 or the permanent magnet 30 as appropriate. That is, when the rotor 331 is made of a permanent magnet or an electromagnet, the stator 333 is made of a coil, and when the rotor 331 is made of a coil, the stator 333 is made of an electromagnet or a permanent magnet.

In this case, when the rotor 331 is configured as a coil, the coil must be coupled with the slip ring 350. Slip ring 350 is to prevent the twist of the wire due to the rotation of the coil as this will be apparent to those skilled in the art will be omitted description.

On the other hand, the induced electromotive force induced by the generator 330 is alternating current. At this time, in the case of three phases, three-phase AC voltages corresponding to each phase are induced. In order to charge the battery 500 to be described later, it is necessary to change to a DC voltage. Accordingly, the DC voltage may be obtained by coupling the commutator 340 to the coil instead of the slip ring 350 illustrated in FIG. 4. Since the shape and function of the commutator 340 is general to those skilled in the art, description thereof will be omitted.

The slip ring 350 and the commutator 340 described above are connected to a brush (not shown) to induce an alternating current or direct current voltage from the coil. As shown in FIG. 5, the voltage induced by the stator 333 is coupled to the slip ring 80 by the wire 50. At this time, the slip ring 80 is bound in the outer circumferential direction of the support (10). Slip ring 80 is to prevent the twisting of the wire 50 when the wind generator 300 rotates, the outer rotating portion 60 is rotated in combination with the wire 50, the inner fixing portion 70 Transmits a voltage to the battery 500. At this time, the fixing part 70 and the rotating part 60 are energized with each other by the contacts 71a and 71b. Since the above-described slip ring 80 is obvious to those skilled in the art, a detailed description thereof will be omitted.

The control means 400 according to the present invention charges the battery 500 to be described later by using the induced electromotive force induced in the coil 40. In this case, the battery 500 is used as a power source for night lights, and the sensor means (not shown in the drawing) that can distinguish day / night so as to charge the battery 500 during the day and supply power to the battery 500 at night. It is preferable to further provide. However, since the present invention uses wind without using solar heat, the charging / discharging time of the battery 500 may be controlled by the control means 400 according to the installation site.

At this time, the control means 400 cuts off the power supply to the lamp 20 while the battery 500 is being charged, and in the case of supplying power to the lamp 20, the voltage induced from the coil 40 causes the battery 500 to be discharged. Switch to prevent charging. Such switching means may be implemented by a relay switch (not shown) or the like. Of course, in an emergency, the battery 500 may be charged while supplying power to the lamp 20.

On the other hand, the control means 400 must block the charging power (induction electromotive force) to protect the battery 500 from overcharging when the battery 500 is fully charged. As an example of such an overcharge protection circuit, the amount of change in the current of the battery 500 may be calculated to determine the state of charge only when there is no current change, so that the charging power may be cut off by the relay switch.

The street lamp 20 described above is generally installed at the top of the street lamp post (10). At this time, the wind generator 300 is preferably installed in a high position so as not to interfere with the lighting of the lamp 20, so that the blade 310 to obtain a smooth rotational energy. Naturally, the wind power generator 300 may be installed above the lamp 20 or be installed below the lamp 20 depending on the installation site.

The battery 500 according to the present invention may use a battery such as nickel cadmium (Ni-cd), nickel hydrogen (Ni-MH), lithium polymer, or lithium ion (Li-ion) as a rechargeable battery. The battery 500 supplies power for illuminating the street light 100 and is charged or discharged under the control of the control means 400.

The battery 500 is preferably installed at the bottom of the street lamp 100 to facilitate replacement, and may be installed in consideration of an appropriate position according to the use environment.

The general battery 500 has a long lifespan only when charging / discharging is performed regularly. Therefore, as in the exemplary embodiment of the present invention, the battery 500 may be discharged to charge during the day and to supply power to the lamp 20 at night, thereby improving the life of the battery 500.

As mentioned above, although demonstrated with reference to one Embodiment of this invention, this invention is not limited to this, A various deformation | transformation and an application are possible. In other words, those skilled in the art can easily understand that many variations are possible without departing from the gist of the present invention.

10: prop
20 lamp
30: permanent magnet
40: coil
50: wires
60: rotating part
70: fixed part
71a, 71b: contact
80: slip ring
100: street light
200: separation support
210: rotation means
220: coupling means
221: coupling groove
223: coupling protrusion
225: flange
225a: screw
225b: bolt
230: Rudder
240: holder
300: wind generator
310: Blade
320: shaft
321: rotation means
321a: left bearing
321b: right bearing
323 shaft support
330: Generator
331: rotor
333: Stator
340: commutator
350: slip ring
360: engaging projection
400 control means
500: Battery

Claims (9)

A street lamp 100 having a strut 10 and a lamp 20;
A detachable separating supporter 200 coupled to one side of the support 10;
A wind generator 300 supported by the separation support 200 and converting rotational energy by wind power into electrical energy;
Control means (400) for controlling charging and discharging of the electrical energy; And
And a battery (500) for supplying power to the street lamp (100) by charging and discharging the electrical energy based on the signal of the control means (400).
The method of claim 1,
The separation support 200,
Wind generators using a street lamp, characterized in that it comprises; rotating means 210 for rotating the wind generator 300 relative to the prop 10 in accordance with the direction of the wind.
The method of claim 1,
The separation support 200,
Wind generator using a street lamp, characterized in that coupled to the pillar (10) by the flange 225 means formed on both sides or the coupling groove 221 formed on one side and the coupling protrusion 223 formed on the other side.
The method of claim 1,
The wind generator 300,
Blade 310 for generating rotational energy by the wind power;
A shaft 320 which rotates corresponding to the rotation of the blade 310;
A rotor 331 fixed to the shaft 320 and rotating; And
Wind generator using a street lamp, including; the stator 333 for generating the electric energy corresponding to the rotation of the rotor (331).
The method of claim 4, wherein
And a rectifier (340) for converting the induced electromotive force induced by the stator (333) into a direct current voltage.
The method of claim 4, wherein
The rotor 331 and the stator 333 is a wind generator using a street lamp, characterized in that consisting of a permanent magnet 30 or a coil (40).
The method of claim 1,
The control means 400,
Day or night by sensing the day by using the electric energy to charge the battery 500, the night is characterized by supplying the electric energy charged in the battery 500 to the lamp 20 Wind generators using street lights.
The method of claim 1,
The control means 400,
Detects the current change amount of the battery 500 to determine whether the battery 500 is buffered, the wind generator using a street lamp, characterized in that the supply of the electrical energy cut off when the battery 500 is buffered. .
The method of claim 1,
Wind generator using a street lamp, characterized in that it further comprises; rudder 230 to easily rotate the wind generator 300 corresponding to the direction of the wind.

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