KR200454137Y1 - Solar panel with LED function using LED module - Google Patents

Abstract

The present invention relates to a solar panel having an electric display panel function by using an LED module that is capable of generating electricity by attaching an LED to a front surface of a solar cell module facing the sun and receiving electricity. A solar panel comprising two or more solar cell modules for generating electrical energy, and two or more LED modules attached and lit or extinguished between any one solar cell module and the other solar cell module. It consists of LED lighting means to express information on. Using the LED module according to the present invention having such a structure, a solar panel having an electric signboard function generates electricity using a solar panel by attaching an LED module that can be turned on or off according to a control signal of a controller on the front of the solar panel. Information can be expressed at the same time.

Description

Solar cell panel with a function of electronic bulletin board by using LED module}

The present invention relates to a solar panel having a display panel function using an LED module, and more specifically, by installing an LED display panel that can display information on the front of the solar panel facing the sun and at the same time information The present invention relates to a solar panel having an electric display function using an LED module capable of displaying expressions in parallel.

Recently, interest in renewable energy is increasing due to global environmental problems, exhaustion of fossil energy, waste disposal of nuclear power generation, and location selection due to the construction of new power plants. Research and development on batteries is actively underway at home and abroad.

At this time, the solar cell rotates the turbine using solar heat, and the solar cell to obtain electrical energy by the rotating turbine as a result, and the photovoltaic cell converting photons into electrical energy using the properties of the semiconductor. As such, the solar cell generally refers to a solar cell.

The solar cell is a structure having a junction structure of a P-type semiconductor and an N-type semiconductor, such as a diode, and when the solar light is incident on the solar cell, it is applied to the load connected to the solar cell by the interaction of the solar light Current will flow.

On the other hand, a solar cell having the above structure is usually installed at a certain angle on the roof or roof of a building to receive sunlight vertically, in the case of high-rise buildings made of multi-generation buildings such as the roof or roof of a building There is a problem that the space is limited and it is not enough to install the solar cell.

Therefore, in recent years, the solar cells may be installed on the outer wall of the building to generate electrical energy. However, due to the unique color of the solar cells, there is a problem in that the aesthetics of the building are darkened and the overall aesthetics of the city may be darkened.

In addition, there is a problem that the front surface of the solar cell facing the sun is typically made of a single color is limited to express specific information.

In addition, when the solar cell is installed on the outer wall of the building, there was a problem in that the front of the solar cell has a limitation in covering a signboard, a placard, or other promotional materials.

The present invention solves the structural problems according to the conventional solar cell module as described above, the solar cell module captures sunlight to produce electricity and LED module to display a variety of information in front The purpose of the present invention is to provide a solar panel having a display panel function.

The solar panel having a display panel function using the LED module according to the present invention for achieving the above object is a solar panel having two or more solar cell modules for generating electrical energy by receiving solar light, any one It may be made of LED lighting means for representing information on the solar panel by having two or more LED modules attached between the solar cell module and the other solar cell module of the on or off.

According to the present invention having the above structure, by attaching an LED module that can be turned on or off according to the control signal of the control unit on the front of the solar panel, it is possible to express information using the LED while producing electricity using the solar panel.

In addition, the brightness of the LED may be adjusted by generating a pulse width modulated signal, or the LED may be turned on or off according to a user's intention.

In addition, as the power supplied to the LED lighting means, it is also possible to use the power generated by the solar cell module or the power generated from the Korean electric power.

1 is a view for explaining a state in which the LED module is mounted on the front of the solar panel,
2a is a control block diagram for storing electricity generated from a solar panel in a rechargeable battery,
FIG. 2B is an electronic circuit diagram of the control block diagram shown in FIG. 2A;
3 is a view for explaining the structure of the solar cell module equipped in the present invention,
4 is a view for explaining a power supply means equipped in the present invention,
5 is a control block diagram for supplying any one of electricity generated from solar panels and electricity generated from Korean electric power to LED lighting means;
6 is a control block diagram of the LED lighting means.

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

The solar panel having a display panel function by using the LED module according to the present invention, as shown in Figure 1, the solar panel having two or more solar modules (2a, 2b) for generating electrical energy by receiving solar light (1) and two or more LED modules (4) attached between one solar cell module (2a) and another solar cell module (2b) and lit or turned off on the solar panel (1) It consists of LED lighting means 3 for expressing information.

In addition, as shown in FIG. 2A, the solar panel 1 includes a first constant voltage unit 21 for fixing and attenuating the voltage output from the solar panel 1 to the voltage of the rechargeable battery 25, and It is mounted on the output terminal of the first constant voltage unit 21 and transferred through the reverse voltage prevention unit 23 and the reverse voltage prevention unit 23 to prevent the voltage of the rechargeable battery 25 from flowing back toward the solar panel 1. A rechargeable battery 25 for charging electricity of the solar panel 1, and a charge battery 25 connected between the reverse voltage preventing unit 23 and the rechargeable battery 25 to charge electricity of the solar panel 1 according to an external control signal. It is provided with a switching unit 27 that is supplied or not supplied to the battery (25).

In addition, the solar panel 1 includes a second constant voltage unit 29 for attenuating and fixing the output voltage of the solar panel 1 to the maximum charging voltage of the rechargeable battery 25 and from the second constant voltage unit 29. By comparing the output voltage and the charging voltage of the rechargeable battery 25, if the voltage of the rechargeable battery 25 is higher than the voltage output from the second constant voltage unit 29, a control signal is transmitted to the switching unit 27. A voltage comparator 31 for cutting off electricity supplied from the solar panel 1 to the rechargeable battery 25 is further provided.

In this case, as shown in FIG. 2B, the first constant voltage unit 21 and the second constant voltage unit 29 may be configured as a zener diode, and the reverse voltage preventing unit 23 may be configured as a diode. .

In addition, the voltage comparator 31 may be configured as an op-amp as shown in FIG. 2B, and the switching unit 27 may be configured using a transistor, a thyristor, or the like.

Accordingly, the control block diagrams shown in FIGS. 2A and 2B ensure that the voltage of the rechargeable battery 25 is kept constant at all times.

Meanwhile, as illustrated in FIG. 3, the solar cell modules 2a and 2b include a front electrode 9 bonded to the N-type semiconductor 7 provided in the solar cell modules 2a and 2b, and the solar cell. A back electrode 13 bonded to the P-type semiconductor 11 provided in the modules 2a and 2b, and the N-type semiconductor 7, the P-type semiconductor 11, the front electrode 9, and the back electrode; EVA (15) (Ethylene Vinyl Acetate) or PVB (17) (Polyvinyl butyral) surrounding the conjugate of (13).

Meanwhile, as shown in FIG. 4, the LED lighting means 3 is equipped with a power supply means 33 for rectifying and attenuating electricity transmitted from Korean electric power and then supplying the LED lighting means to the LED lighting means 3. The power supply means 33 includes a transformer 35 for attenuating a voltage of 220V supplied from Korean electric power to a voltage corresponding to the LED lighting means 3, and an alternating voltage reduced by the transformer 35 as a direct current voltage. A rectifier 37 for converting, a filter unit 39 for lowering the pulsation rate of the voltage output from the rectifier 37, and a third constant voltage unit for attenuating the voltage output through the filter unit 39 to a fixed voltage 41.

In this case, a full-wave bridge rectifier using four diodes may be used as the rectifier 37, the filter part 39 may be composed of a resistor and a capacitor, and the third constant voltage part 41 may be a zener diode. Can be configured.

In addition, the fuse 42 is preferably installed at the input terminal of the transformer 35.

In addition, as shown in FIG. 5, the rechargeable battery 25 and the power supply means 33 transmit current from the rechargeable battery 25 to the LED lighting means 3 according to the control signal of the first controller 49. A relay 43 for supplying or supplying current from the power supply means 33 to the LED lighting means 3 may be mounted, and the relay 43 drives the relay 43 according to an external input signal to charge the battery. A first control unit 49 may be mounted to supply the current of 25 to the LED lighting means 3 or to supply the current of the power supply means 33 to the LED lighting means 3.

In addition, as shown in FIG. 6, the LED lighting means 3 adjusts the brightness of the LED provided in the LED lighting means 3 or turns the LED provided in the LED lighting means 3 on and off. The first control unit 49 which transmits a control signal to the second control unit 47 to turn off, and blue, green, red, white with one LED. Two or more LEDs emitting LEDs are connected to the LED module 4 and the cathode terminals of the LEDs arranged at the rear end of the LEDs provided in the LED module 4, respectively, to measure the current supplied to the LEDs in real time. The sensing unit 53 is provided.

In addition, the second controller 47 compares the LED brightness data (current value) transferred from the first controller 49 with the current value transferred from the current sensing unit 53, and the comparison unit 55. As a result of comparing the LED brightness data (current value) transmitted from the first control unit 49 by the unit 55 to the current value transmitted from the current sensing unit 53, the LED brightness transmitted from the first control unit 49 is compared. If the data (current value) is larger than the current value transmitted from the current sensing unit 53, the pulse width of the high level included in the pulse signal of one cycle is increased in the switching unit 57 and transmitted to the switching unit 57. If the LED brightness data (current value) transmitted from the first controller 49 is smaller than the current value transmitted from the current sensing unit 53, the high level pulse included in the pulse signal of one cycle in the switching unit 57 is included. It is provided with a pulse width control unit 59 to reduce the width to transfer to the switching unit (57).

In addition, the LED lighting means 3 has an input terminal connected to the rechargeable battery 25 or the power supply means 33 and the rechargeable battery 25 to the filter unit 61 according to the pulse signal transmitted from the pulse width control unit 59. Or a switching unit 57 for supplying electricity transferred from the power supply unit 33 and a square wave voltage connected to an output terminal of the switching unit 57 and output through the switching unit 57 to be gently adjusted. It is further provided with a filter unit 61 for converting to an ordinary voltage.

The LED module 4 may include a series LED group in which two or more LEDs are connected in series, and a parallel LED group in which two or more series LED groups are connected in parallel.

The solar panel 1 equipped with the LED display panel according to the present invention having such a structure has an LED module 4 which may be turned on or off in accordance with a control signal of the first control unit 49 on the front of the solar panel 1. By attaching, the solar panel 1 can be used to produce electricity and at the same time, information can be expressed using LEDs.

1. solar panel 3. LED lighting means
4. LED Module 7. N-type Semiconductor
9. Front electrode 11. P-type semiconductor
13. Rear electrode 15. EVA
17. PVB 21. First constant voltage section
23. Reverse voltage protection part 25. Rechargeable battery
27. Switching section 29. Second constant voltage section
31. Voltage comparator 33. Power supply means
35. Transformer 37. Rectifier
39. Filter section 41. Third constant voltage section
43. Relay 47. Second control unit
49. First control unit 53. Current sensing unit
55. Comparator 57. Switching unit
59. Pulse Width Control Unit 61. Filter Unit

Claims (7)

A solar panel 1 having two or more solar cell modules 2a and 2b which receive solar light and generate electric energy;
LED having two or more LED modules (4) attached between one solar cell module (2a) and the other solar cell module (2b) and lit or turned off to express information on the solar panel (1) A solar panel having an electric display function using an LED module composed of lighting means (3),
The solar panel 1 includes a first constant voltage unit 21 for fixing and attenuating the voltage output from the solar panel 1 to the voltage of the rechargeable battery 25;
A reverse voltage prevention unit 23 mounted at an output terminal of the first constant voltage unit 21 to prevent the voltage of the rechargeable battery 25 from flowing backward in the solar panel 1 direction;
Rechargeable battery 25 for charging the electricity of the solar panel (1) transmitted through the reverse voltage protection unit 23;
A switching unit 27 connected between the reverse voltage preventing unit 23 and the rechargeable battery 25 to supply or disable electricity of the solar panel 1 to the rechargeable battery 25 according to an external control signal;
A second constant voltage unit 29 attenuating and fixing the output voltage of the solar panel 1 to the maximum charging voltage of the rechargeable battery 25;
When the voltage of the rechargeable battery 25 is higher than the voltage output from the second constant voltage unit 29 by comparing the voltage output from the second constant voltage unit 29 and the charge voltage of the rechargeable battery 25, the switching A voltage comparison unit 31 is mounted to transmit a control signal to the unit 27 to cut off electricity supplied from the solar panel 1 to the rechargeable battery 25.
The solar cell modules 2a and 2b include a front electrode 9 bonded to an N-type semiconductor 7 provided in the solar cell modules 2a and 2b;
A rear electrode 13 bonded to the P-type semiconductor 11 provided in the solar cell modules 2a and 2b;
And an EVA 15 or PVB 17 surrounding the combination of the N-type semiconductor 7, the P-type semiconductor 11, the front electrode 9, and the rear electrode 13.
The LED lighting means 3 is equipped with a power supply means 33 for rectifying and attenuating electricity transmitted from the Korean electric power and then supplying the LED lighting means 3,
The power supply means 33 includes a transformer 35 for attenuating a voltage of 220V supplied from Korean electric power to a voltage corresponding to the LED lighting means 3;
A rectifier 37 for converting an AC voltage attenuated by the transformer 35 into a DC voltage;
A filter unit 39 for lowering a pulsation rate of the voltage output from the rectifying unit 37;
And a third constant voltage unit 41 for attenuating the voltage output through the filter unit 39 to a fixed voltage.
The rechargeable battery 25 and the power supply means 33 supply the current of the rechargeable battery 25 to the LED lighting means 3 or the current of the power supply means 33 according to the control signal of the first controller 49. The relay 43 is supplied to supply the LED lighting means 3,
The relay 43 drives the relay 43 according to an external input signal to supply the current of the rechargeable battery 25 to the LED lighting means 3 or the current of the power supply means 33 to the LED lighting means 3. It is equipped with a first control unit 49 to supply to
The LED lighting means 3 controls the brightness of the LED provided in the LED lighting means 3 or the second controller 47 to turn on or off the LED provided in the LED lighting means 3. A first control unit 49 for transmitting a control signal to the control unit;
An LED module 4 having two or more LEDs emitting blue, green, red, and white light as one LED;
And a current sensing unit 53 connected to the cathode terminals of the LEDs disposed at the rearmost end of the LEDs provided in the LED module 4 to measure the current supplied to the LEDs in real time.
The second controller 47 is a comparison unit 55 for comparing the LED brightness data (current value) transmitted from the first control unit 49 and the current value transferred from the current sensing unit 53,
As a result of comparing the LED brightness data (current value) transmitted from the first controller 49 by the comparator 55 and the current value transmitted from the current sensing unit 53, When the LED brightness data (current value) is larger than the current value transmitted from the current sensing unit 53, the pulse width of the high level included in the pulse signal of one cycle is increased in the switching unit 57 to the switching unit 57. If the LED brightness data transmitted from the first controller 49 is smaller than the current value transmitted from the current sensing unit 53, the pulse width of the high level included in the pulse signal of one cycle is transmitted to the switching unit 57. It is provided with a pulse width control unit 59 for reducing and transmitting to the switching unit 57,
The LED lighting means (3) is connected to the rechargeable battery 25 or the power supply means 33, the input terminal is connected to the rechargeable battery 25 or the filter unit 61 in accordance with the pulse signal transmitted from the pulse width control unit 59 A switching unit 57 for supplying electricity transferred from the power supply unit 33;
And a filter unit 61 connected to the output terminal of the switching unit 57 and converting the square wave voltage output through the switching unit 57 into a fixed voltage.
The LED module 4 is a series LED group of two or more LEDs connected in series,
The series LED group is composed of two or more parallel LED group connected in parallel,
The first constant voltage unit 21 and the second constant voltage unit 29 is composed of a zener diode, the reverse voltage prevention unit 23 is composed of a diode,
The voltage comparison unit 31 is composed of an op-amp, the switching unit 27 is configured using a transistor or a thyristor,
The rectifier 37 is a full-wave bridge rectifier using four diodes, the filter 39 is composed of a resistor and a capacitor, the third constant voltage section 41 is characterized in that the zener diode Solar panel with LED function using LED module.
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