KR101133939B1 - LED board using dye-sensitized solar cell - Google Patents

Abstract

An LED board using a dye-sensitized solar cell is disclosed.

The present invention provides a main body frame, a front panel having a display unit disposed on a front surface of the main body frame and emitting light by colored fluorescent substances on a surface thereof, a rear panel disposed on a rear surface of the main body frame, and a plurality of front panels disposed on a front surface of the rear panel. Using a dye-sensitized solar cell including two light emitting diodes, a dye-sensitized solar cell formed on an outer surface of the body frame, and a relay unit for supplying current generated by the dye-sensitized solar cell to the plurality of light-emitting diodes. Provide LED board.

According to the present invention, by providing a dye-sensitized solar cell on the outer side surface of the LED board, it is possible to provide light to a display portion that is emitted by a fluorescent material when light illumination such as indoor light or cloudy day is weak, By reusing the light emitted from the two light emitting diodes, an additional current is provided to the LED board, thereby maximizing the light efficiency of the LED board.

Description

LED board using dye-sensitized solar cell {LED board using dye-sensitized solar cell}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting diode (LED) board, and in particular, to reuse energy emitted by a current generated by a dye-sensitized solar cell according to room light. It relates to an LED board using a dye-sensitized solar cell that can increase the use efficiency.

In today's society, presentations and appeals to inform others about the tasks or services they handle are becoming important according to the development of information media and industrial development.

For this purpose, advertising media using boards have been used, and the importance of advertising effects due to visual and low cost using such boards has been highlighted.

Such advertisements are becoming an absolutely important means of receiving information for modern people who need various kinds of information, and as the flow of information is getting faster, various media for information delivery are also developing. They need a large number of advertising media to deliver information to consumers faster and more diversely.

To this end, advertising boards are provided with various display devices such as rooftops of buildings, subway walls, roadsides, etc. for advertising specific products and companies. In the conventional advertising boards, fluorescent or neon lights are used as light sources. come.

Among them, in the board using a fluorescent lamp as a light source, the fluorescent lamp itself is formed of a material of a glass tube, so the risk of breakage is large, the lifespan is short, the replacement cycle is short, and the use of fluorescent lamps increases the volume of the entire billboard.

On the other hand, although a board using neon is used, there is a risk of electric leakage, fire and electric shock due to the use of high voltage, and there is a disadvantage in that the lighting efficiency varies greatly depending on the ambient temperature due to the nature of the gas called neon.

In order to solve this problem, Republic of Korea Utility Model Publication No. 0370429 connects the LED lamp to the inside of the billboard, and turns on the LED lamp to provide an LED billboard using the solar cell using a solar cell, but this is a separate charger It only charges the generated current, and when the intensity of the incident light source such as indoor light is weak, there is a problem in that the amount of generated current is small and the lighting efficiency of the LED billboard is lowered.

Therefore, the problem to be solved by the present invention is to minimize the volume of the board itself in the LED board, easy to use and manage, using a dye-sensitized solar cell that can improve the lighting efficiency even in an environment using indoor light To provide an LED board.

According to an aspect of the present invention,

Body frame; A front panel disposed on a front surface of the main body frame and having a display unit configured to emit light by colored fluorescent material on a surface thereof; A rear panel disposed on a rear surface of the main body frame; A plurality of light emitting diodes disposed in front of the rear panel; A dye-sensitized solar cell formed on an outer surface of the body frame; And it provides a LED board using a dye-sensitized solar cell comprising a relay unit for supplying a current generated by the dye-sensitized solar cell to the plurality of light emitting diodes.

Meanwhile, the LED board using the dye-sensitized solar cell according to the present invention may further include an auxiliary dye-sensitized solar cell that generates an auxiliary current by the backlights generated by the plurality of light emitting diodes on the rear of the rear panel. have.

In addition, the LED board using the dye-sensitized solar cell according to the present invention further comprises a partition wall partitioning the specific area, the front panel and the rear panel, the partition wall in the plurality of light emitting diodes It may be provided with a reflecting plate formed so that the formed light is directed to the secondary dye-sensitized solar cell.

The reflective plate may include an aluminum plate coated with silicon oxide or titanium oxide.

In addition, the aluminum plate may be embossed with hammertone surfaces.

In addition, the auxiliary dye-sensitized solar cell may include an auxiliary relay unit for transmitting an auxiliary current generated by the auxiliary dye-sensitized solar cell to the relay unit.

The auxiliary relay unit may further include a small signal current amplification module for amplifying the auxiliary current.

The rear panel may further include a rear reflector configured to reflect light generated by the plurality of light emitting diodes to the dye-sensitized solar cell on a rear surface of the rear panel.

In addition, the rear reflector may be a concave lens-shaped reflector.

The rear reflector is spaced apart at a predetermined interval so that one surface thereof is parallel to the rear surface of the rear panel, and the other surface is formed to extend with the one surface and overlaps with the dye-sensitized solar cell formed on the outer surface of the body frame. It may be an angle reflector formed at an inclined angle at a predetermined height.

According to the present invention, by providing a dye-sensitized solar cell on the outer side of the LED board, it is possible to provide light to a display unit which emits light by a fluorescent material when light illuminance such as indoor light or cloudy day is weak. By reusing light emitted from a plurality of light emitting diodes, an additional current is provided to the LED board, thereby maximizing the light efficiency of the LED board.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings, but the present invention is not limited thereto.

In addition, the embodiments of the present invention illustrated below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. Embodiments of the invention are provided to more fully illustrate the invention to those skilled in the art.

1 is an exploded perspective view of an LED board using a dye-sensitized solar cell according to an embodiment of the present invention.

Referring to FIG. 1, the LED board using the dye-sensitized solar cell according to the present invention includes a main body frame 110, a front panel 120, a rear panel 130, and a light source generator 140 including a plurality of light emitting diodes. ), The dye-sensitized solar cell 150 and the relay unit 160 may be included.

Here, the front panel 120 is formed with a display unit disposed on the front surface of the main body frame 110 to emit light by the fluorescent material colored on the surface.

The display unit is an area in which the phrase or design to be displayed by the LED board user is displayed, and the phrase or design displayed on the display unit may be made of a fluorescent material sensitive to light.

For example, the phrase or design may be formed on the front panel 120 by mixing fluorescent material with ink and screen printing the display sticker.

Then, the phrase or design may be more visible in response to the light emitting means, thereby providing the general public with more discriminating power of the phrase or design.

Meanwhile, the rear panel 130 is formed to face the front panel, and a light source generator 140 including a plurality of light emitting diodes providing light to the front panel is formed on a front surface of the rear panel 130. .

As described above, according to the present invention, the front panel 120 is disposed on the front surface of the main body frame 110, the rear panel 130 is disposed on the rear surface, and then the dye is disposed on the outer surface of the main body frame 110. The sensitive solar cell 150 is disposed.

Conventionally, an external power source or a general solar cell is used as a driving power source of the LED board. However, the present invention provides the LED board free of external power and space constraints by configuring the dye-sensitized solar cell 150 on the outer surface of the main body frame 110. Can be provided. The outer surface refers to both the front part and the side part of the frame, and includes all of any area on the frame that is provided with a dye-sensitized solar cell to receive room light from the outside.

The dye-sensitized solar cell applied to the present invention may be a general dye-sensitized solar cell, and may be a dye-sensitized solar cell including a plurality of unit cells as shown in FIG. 2.

In the dye-sensitized solar cell according to FIG. 2, since each of the unit cells independently generates a current and sends it to an external circuit, the current of the remaining unit cells even if an abnormality occurs in the function of one unit cell. Generation is sustained so that the generated current can be reliably delivered to external circuits.

That is, referring to FIG. 2, the dye-sensitized solar cell may have a form in which each unit cell 200 is not connected by a metal grid, but separated by a separation partition 210, and each unit cell 200. Are connected in parallel to flow current from each unit cell from an end of each unit cell 200 to an external circuit (see arrow).

 In addition, the separation barrier 210 serves to prevent the filled electrolyte of the unit cell from flowing to the adjacent unit cell, in which it should be particularly noted that when the electrolyte leaks into the partition wall, the electrolyte is separated from the adjacent unit cell. It only merges with the electrolyte and does not affect the overall module functionality. That is, in the conventional dye-sensitized solar cell, when the electrolyte leaks to the separation partition 210, the electrolyte leaks to corrode the metal grid, affecting the entire module of the series structure, but different dye-sensitized type shown in FIG. Solar cells never encounter this problem. However, the above-described configuration of the dye-sensitized solar cell corresponds to one embodiment of the present invention, and any dye-sensitized solar cell that can be installed on the outer surface of the frame also falls within the scope of the present invention.

As described above, the current generated by the dye-sensitized solar cell is directly transmitted to the light source generating unit 140 including the plurality of light emitting diodes by the relay unit 160.

The LED board using the dye-sensitized solar cell according to the present invention can be used as an advertisement board and a menu board. Furthermore, in order to use the LED board even when illumination is not sufficient, such as indoor light or cloudy day, FIG. 1 It further provides an additional configuration according to Figures 3 to 6 described below based on the LED board.

 3 is an exploded perspective view of a dye-sensitized solar cell according to another embodiment of the present invention.

Referring to FIG. 3, the LED board according to another embodiment of the present invention further includes an auxiliary dye-sensitized solar cell 170.

That is, the present invention performs the first driving of the LED board by the dye-sensitized solar cell 150 configured on the outer surface of the frame, and after the first driving, the current is generated using the light of the light source generator 140. Further comprising an auxiliary dye-sensitized solar cell 170 that can be made, by additionally using the current generated by the auxiliary dye-sensitized solar cell 170, the light source generating unit 140 of the present invention generates sufficient light Do it.

Then, even when the illumination is not sufficient, such as indoor light or cloudy days, the phrase or design formed on the front panel 120 is more visible in response to the light generated by the light source generator, so that the general public Clearly and clearly identify phrases or designs.

To this end, the auxiliary dye-sensitized solar cell 170 is disposed on the rear of the rear panel 130, and the auxiliary dye is generated by the light source generating unit 140 and directed toward the rear of the rear panel 130. It is possible to generate an auxiliary current in the sensitized solar cell 170.

In fact, the light generated by the light source generator 140 is irradiated to the front panel 120, but due to the nature of the light, some light is also transmitted to the rear panel 130.

In addition, since the LED board using the dye-sensitized solar cell according to the present invention is formed of a glass plate, the light generated by the light source generator 140 is applied to the rear panel 130 as well as the front panel 120 due to the permeation characteristics of the glass. Delivered.

Thus, the present invention configures an additional auxiliary dye-sensitized solar cell 170 on the back side of the back panel 130, thereby generating auxiliary current by reusing light transmitted to the back panel 130.

Accordingly, since the auxiliary current generated as described above may be further provided to the light source generating unit 140 even if the illuminance is not sufficient, such as indoor light or cloudy day, the light source generating unit 140 may generate more light. The front panel 120 may be provided.

As a result, the visibility of the phrase or design formed on the front panel 120 is further improved, so that the general person can identify the phrase or design of the LED board more clearly and clearly even during the day.

On the other hand, the auxiliary current generated in the auxiliary dye-sensitized solar cell 170 is transferred to the relay unit 160 by an auxiliary relay unit (not shown).

On the other hand, a small signal current amplification module may be further provided to amplify the auxiliary current to amplify the current of the auxiliary current, the small signal current amplification module may be variously modified according to the use state and embodiments of the present invention. Of course.

The relay unit 160 transmits the current generated by the dye-sensitized solar cell 150 and the auxiliary current generated by the auxiliary relay unit (not shown) to the light source generator 140, and the light source generator 140. Will operate the LED based on the current delivered.

Figure 4 shows a partial cutaway view of an LED board using a dye-sensitized solar cell according to another embodiment of the present invention.

Referring to FIG. 4, the LED board using the dye-sensitized solar cell according to another embodiment of the present invention is formed at an end of the main body frame 110, and the front panel 120 and the rear panel 130 are separated from each other. It includes a partition wall 180 formed to contact.

On the other hand, the partition wall is formed so that the width of the partition wall 180 toward the height direction of the LED board so that the light generated from the light source generation unit 140 toward the rear panel 130, the surface of the partition 180 is a reflecting plate 181 It is provided.

The reflection plate 181 having such a shape allows light to be irradiated to a portion of the rear panel that is not irrelevant to the display portion. Here, the reflecting plate may include an aluminum plate coated with silicon oxide or titanium oxide.

Since the aluminum reflector has a reflectance of 90 to 98% and a low light absorption, the light generated by the light source generator 140 may be reflected to the rear panel with high efficiency.

On the other hand, the aluminum plate may be embossed with hammertone surface. The reason for embossing the aluminum plate is that when reflecting the light generated from the light source generator 140 to the rear panel, it is easier to diffuse reflection so that the light can easily reach the auxiliary dye-sensitized solar cell. To do this.

5 is a perspective view of an LED board using a dye-sensitized solar cell according to another embodiment of the present invention.

Referring to FIG. 5, the rear reflector 190 is disposed on the rear panel of the rear panel of the LED board using the dye-sensitized solar cell and reflects the light generated by the light source generator of the LED board to the dye-sensitized solar cell. It is provided.

As described above, the light generated by the light source generator is irradiated not only to the front panel of the LED board but also to the rear panel. When the light is reflected by the dye-sensitized solar cell 150 using the rear reflector 190, As a result, the amount of light incident on the dye-sensitized solar cell becomes larger, resulting in a larger amount of generated current.

As such, the back reflector 190 may use a concave lens-shaped reflector in order to more easily reflect light to the dye-sensitized solar cell 150.

The diameter of the concave lens-shaped reflector further configured in the LED board using the dye-sensitized solar cell according to the present invention is formed longer than the length of the LED board of the present invention, so that the light of the LED directed to the rear panel is To be reflected to the battery 150.

6 is a perspective view of an LED board using a dye-sensitized solar cell according to another embodiment of the present invention.

Referring to FIG. 6, disposed on the rear side of the rear panel 130 of the LED board using the dye-sensitized solar cell, the light generated by the light source generator of the LED board is reflected to the dye-sensitized solar cell 150. An angle reflector 200 is further provided.

As described above, the light generated by the light source generator is irradiated not only to the front panel 120 of the LED board but also to the rear panel. When the light is reflected by the dye-sensitized solar cell using the rear reflector, the dye is sensitive. The amount of light incident on the solar cell becomes larger, and the amount of generated current also becomes larger.

As such, in order to further facilitate the reflection of light into the dye-sensitized solar cell, the rear reflector may use an angle reflector 200.

As illustrated in FIG. 6, the angle reflection plate 200 is formed to be spaced apart at a predetermined interval so that one surface 201 is parallel to the rear surface of the rear panel, and the other surface 202 is formed to extend with the one surface. It may be formed at an angle of a predetermined angle to a height that does not overlap with the dye-sensitized solar cell formed on the outer surface of the body frame.

Furthermore, in order to consider the angle of incidence of light incident on the dye-sensitized solar cell and to minimize the phenomenon that the light incident on the dye-sensitized solar cell is obscured by the angle-type reflector, the angle-type reflector is the auxiliary dye-sensitized solar cell. The amount of current generated by the battery can be formed to tilt up or down to tilt down to have a maximum value.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary and will be understood by those skilled in the art that various modifications and embodiments may be made therefrom. However, such modifications should be considered to be within the technical protection scope of the present invention. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is an exploded perspective view of an LED board using a dye-sensitized solar cell according to an embodiment of the present invention.

2 shows a dye-sensitized solar cell applied to the present invention.

3 is an exploded perspective view of a dye-sensitized solar cell according to another embodiment of the present invention.

Figure 4 shows a partial cutaway view of an LED board using a dye-sensitized solar cell according to another embodiment of the present invention.

5 is a perspective view of an LED board using a dye-sensitized solar cell according to another embodiment of the present invention.

6 is a perspective view of an LED board using a dye-sensitized solar cell according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: body frame 120: front panel

130: rear panel 140: light source generation unit

150: dye-sensitized solar cell 160: relay unit

170: secondary dye-sensitized solar cell 180: partition wall

181: reflecting plate 190: concave lens type reflecting plate

200: angle reflector

Claims (11)

Body frame; A front panel disposed on a front surface of the main body frame and having a display unit configured to emit light by colored fluorescent material on a surface thereof; A rear panel disposed on a rear surface of the main body frame; A light source generator including a plurality of light emitting diodes disposed in front of the rear panel; A dye-sensitized solar cell formed on an outer surface of the body frame; And An LED board using a dye-sensitized solar cell comprising a relay unit for supplying a current generated by the dye-sensitized solar cell to the plurality of light emitting diodes, An angle type rear reflector is further provided on a rear surface of the rear panel to reflect light generated by the light source generator to the dye-sensitized solar cell; The angle type rear reflector is spaced apart at a predetermined interval so that one surface thereof is parallel to the rear surface of the rear panel, and the other surface is formed to extend with the one surface and does not overlap with the dye-sensitized solar cell formed on the outer surface of the body frame. It is formed with an inclination of a predetermined angle to a height that does not The LED board using the dye-sensitized solar cell is characterized in that the other surface of the angle type reflector is tilted up or tilted down to have a maximum amount of current generated by the auxiliary dye-sensitized solar cell. . The method of claim 1, On the rear of the rear panel LED board using a dye-sensitized solar cell further comprises an auxiliary dye-sensitized solar cell for generating an auxiliary current by the light generated by the light source generator. The method of claim 2, A barrier rib formed at an end of the main body frame and formed to be in contact with the front panel and the rear panel; The partition board is an LED board using a dye-sensitized solar cell, characterized in that the reflection plate formed so that the light formed in the light source is directed to the auxiliary dye-sensitized solar cell. The method of claim 3, wherein The reflector is LED board using a dye-sensitized solar cell, characterized in that it comprises an aluminum plate coated with silicon oxide or titanium oxide. The method of claim 4, wherein The aluminum plate LED board using a dye-sensitized solar cell, characterized in that the surface is embossed with hammertone. The method of claim 2, The auxiliary dye-sensitized solar cell is LED board using a dye-sensitized solar cell comprising a secondary relay unit for transmitting an auxiliary current generated by the auxiliary dye-sensitized solar cell to the relay unit. The method of claim 6, The auxiliary relay unit LED board using a dye-sensitized solar cell further comprises a small signal current amplification module for amplifying the auxiliary current. delete delete delete delete

Images