KR20180003579U - Road surface power generation unit and system - Google Patents

Abstract

A road surface power generation unit and a road surface power generation system are provided. The road surface power generation unit comprises: a lower glass sheet arranged on a road base block on a road surface; A solar cell chip fixed on a lower glass sheet; And an upper glass sheet covering the solar cell chip. Each of the lower glass sheet and the upper glass sheet is fixed to the solar cell chip by an adhesive. In a surface power generation unit and system, a lower glass sheet is arranged on a road base block, and a solar cell chip is arranged between an upper glass sheet and a lower glass sheet. The road surface power generation unit is waterproof and easy to install, so that the wear resistance of the road surface can be improved while the power generation efficiency can be increased.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a road surface power generation unit,

The present application claims priority to Chinese patent application No. 201720677907.0, filed on June 12, 2017, entitled "Road Surface Development Unit and System", filed with the National Intellectual Property Office of the People's Republic of China, Incorporated herein by reference.

The present invention relates to the technical field of photovoltaic power generation, and more particularly to a road surface power generation unit and a road surface power generation system.

With the continuous development of new energy technologies, dispersed solar energy provides more convenient energy for people. Distributed photovoltaic systems require a place such as a constant plane or space.

Currently, the demand for electricity is greatly increased in the transportation sector as a lot of supporting electrical facilities such as lighting, monitoring and instruction facilities are used. In addition, an increasing number of power lines are installed on newly constructed roads or reconstructed roads. The solar energy devices installed on the lamp pole or on the ground are not only beautiful but also take up too much space. In the transportation sector, there are many potential locations for distributing solar energy devices, such as surfaces of non-motorized lanes in parks and pedestrian zones, as well as roofs of service facilities. Solar cell chips can be distributed on the surface of non-automotive lanes to power the landscape infrastructure and facilities for lighting, monitoring and direction.

However, solar cell chips arranged on the road surface and often stamped or bumped result in poor wear resistance of the road surface. Further, the light absorptivity of the solar cell chip after long use is affected.

According to the present invention, a road surface power generation unit and a road surface power generation system are provided. By arranging the lower glass sheet on the road base block and arranging the solar cell chip between the upper glass sheet and the lower glass sheet, the abrasion resistance of the road surface can be improved while the power generation efficiency can be increased, Can be solved.

The road base block may be a base block used in automobile lanes or non-automobile lanes. The roadbase block may comprise a reinforced concrete base having a planarization layer of cement mortar, a base treatment layer and a waterproof coating provided on the reinforced concrete base in this order.

A road surface power generation unit according to the present disclosure is provided. The road surface power generation unit comprises: a lower glass sheet arranged on a road base block on a road surface; A solar cell chip fixed on the lower glass sheet; And an upper glass sheet covering the solar cell chip. Each of the lower glass sheet and the upper glass sheet is fixed to the solar cell chip by an adhesive.

Preferably, in the road surface power generation unit, the power generation material of the solar cell chip may be a flexible material.

Preferably, in the road surface power generation unit, the lower glass sheet may be made of polymethyl methacrylate.

Preferably, in the road surface power generation unit, the upper glass sheet may be made of tempered glass or polymethylmethacrylate.

Preferably, the road surface power generation unit may include one solar cell chip.

Preferably, the road surface power generation unit may further include a cable and a junction box. The cable is electrically connected to the solar cell chip through the junction box. The cable and junction box are arranged between the solar cell chip and the bottom glass sheet and are embedded in the bottom glass sheet.

Preferably, the road surface power generation unit may include a plurality of solar cell chips.

Preferably, the road surface power generation unit may further include cables, junction boxes, and connectors. Each of the plurality of solar cell chips is provided with one of the junction boxes. One end of each of the cables is connected to one of the junction boxes, and the other end of each of the cables is connected to one of the connectors. The connectors include first connectors and second connectors. Each of the first connectors is configured to electrically connect the cables connected to the different junction boxes so that a plurality of solar cell chips are connected in series and / or in parallel, the first connectors being arranged between adjacent junction boxes, And extends from the bottom of the glass sheet. The second connectors are located at both ends of a solar cell chip string formed by a plurality of solar cell chips connected in series and / or in parallel and function as positive and negative terminals of the solar cell chip string, Extends from the bottom of the bottom glass sheet and extends laterally. The cables and junction boxes are arranged between the plurality of solar cell chips and the bottom glass sheet and are embedded in the bottom glass sheet.

Preferably, in the road surface power generation unit, the first connectors located below the lower glass sheet may be surrounded by sealed boxes.

Preferably, the road surface power generation unit may further include a sealing strip. The upper glass sheet is attached to the lower glass sheet through a sealing strip such that a plurality of solar cell chips are located within the sealed space formed by the upper glass sheet, the lower glass sheet and the sealing strip.

A road surface power generation system according to the present disclosure is provided. The road surface power generation system includes a road surface power generation unit, a charge controller, and a battery according to the present disclosure. The electric current generated by the surface power generation unit is output to the battery through the charge controller to supply electric power to the electric device.

A road surface power generation system according to the present disclosure is provided. The road surface power generation system includes two or more road surface power generation units, a current convergence device and an inverter according to the present disclosure connected in series. The currents generated by the two or more surface power generation units are converged by the current convergence device, output to the inverter, inverted by the inverter, and then output to the power grid.

A road surface power generation unit according to the present disclosure is provided. The lower glass sheet is arranged on the road base block, and the solar cell chip is arranged between the upper glass sheet and the lower glass sheet. The road surface power generation unit is waterproof and easy to install, so that the wear resistance of the road surface can be improved while the power generation efficiency can be increased.

1 is a plan view illustrating a structure of a road surface power generation unit according to an embodiment of the present disclosure;
2 is a sectional view of a road surface power generation unit according to an embodiment of the present disclosure;
Figure 3 is an enlarged view of portion A of Figure 2;
4 is a schematic diagram of a road surface power generation system according to a preferred embodiment of the present disclosure;
5 is a schematic diagram of a road surface power generation system according to another preferred embodiment of the present disclosure;

Hereinafter, embodiments of the present disclosure will be described in detail and illustrated in the drawings, wherein like reference numerals designate the same or similar elements or elements having the same or similar functions throughout the description. The embodiments described below with reference to the drawings are merely exemplary embodiments used to describe the present disclosure and should not be construed as limiting the present disclosure.

1 is a plan view illustrating a structure of a road surface power generation unit according to an embodiment of the present disclosure; The road surface power generation unit 100 according to the embodiment of the present disclosure includes a lower glass sheet 110, a solar cell chip 120, and an upper glass sheet 130.

The surface power generation unit 100 can be arranged on a new road surface. The lower glass sheet 110 is arranged on the road base block. The solar cell chip 120 is fixed on the lower glass sheet 110 and the upper glass sheet 130 covers the solar cell chip 120. The lower glass sheet 110 is fixed to the solar cell chip 120 by an adhesive and the upper glass sheet 130 is fixed to the solar cell chip 120 by an adhesive. The power generation material of the solar cell chip 120 may be a crystalline silicon material such as monocrystalline silicon or polycrystalline silicon, or a flexible material such as copper indium gallium selenide (CIGS) which is deformable when exposed to stress.

2 is a sectional view of a road surface power generation unit according to an embodiment of the present disclosure; Figure 3 is an enlarged view of portion A of Figure 2; The solar cell chip 120 can be fixed on the lower glass sheet 110 by an adhesive 140, which is preferably a UV curving adhesive or a resin adhesive. The upper glass sheet 130 may be fixed to the solar cell chip 120 by an adhesive, preferably a UV curbing adhesive. The lower glass sheet 110 may be made of polymethylmethacrylate (PMMA). The upper glass sheet 130 may be made of tempered glass or polymethylmethacrylate (PMMA).

A road surface power generation unit according to the present disclosure is provided. The lower glass sheet is arranged on the road base block, and the solar cell chip is arranged between the upper glass sheet and the lower glass sheet. The road surface power generation unit is waterproof, is easy to install, can improve the abrasion resistance of the road surface, and can increase the power generation efficiency.

The solar cell chip 120 may be a CIGS cell chip. CIGS cell chips have high photoelectric conversion efficiency and can generate power in low light conditions. Thus, a CIGS cell chip can generate power in all weather conditions. Since the CIGS cell chip is deformable and can bend when exposed to stress, the solar cell chip can be protected from damage in complex conditions such as road surface vibration and temporary deformation. CIGS cell chips can be packaged using soft, corrosion-resistant surface materials such as ETFE (Ethyl Tetra Fluoro Ethylene). By using a high-strength UV carburizing adhesive and a PMMA glass sheet, it is possible to prevent the solar cell chip from being damaged due to collision of rocks and sand by installing the solar cell chip on the road surface, Can be protected in the same corrosive environment. In addition, a bypass diode can be adopted in a solar cell chip, and when a light-receiving surface is cut off or broken, an area not generating power is blocked and a region capable of normally receiving light is secured can do. This case is suitable for roads with complicated blocking conditions.

In an embodiment of the present disclosure, the lower glass sheet 110 is arranged on the road base block. The manner in which the lower glass sheet is arranged on the road base block is not limited in the embodiments of the present disclosure. Alternatively, the lower glass sheet 110 may be attached directly to the surface of the road. Alternatively, the lower glass sheet 110 may be attached to the surface of the road by an adhesive or cement. When the lower glass sheet 110 is directly attached to the surface of the road, the installation is facilitated.

The road surface power generation unit according to an embodiment of the present disclosure further includes a cable and a junction box connected to the solar cell chip. The cable is electrically connected to the solar cell chip through the junction box. The junction box is configured to collect and output the current generated by the solar cell chip. One junction box is provided for each solar cell chip. The junction box includes a positive output terminal and a negative output terminal, which are connected to an external device and configured to transmit power to the external device.

It should also be noted that in the case where a plurality of solar cell chips connected in series or in parallel are included, the road surface power generation unit may further include connectors. Each of the connectors is connected to a junction box of one of the plurality of solar cell chips via a cable. The connectors include first connectors and second connectors. Each of the first connectors is configured to electrically connect junction boxes of different solar cell chips to each other to realize a series connection and / or a parallel connection of a plurality of solar cell chips. That is, one end of the cable is connected to one junction box of the plurality of solar cell chips, and the other end of the cable is connected to one of the first connectors. Each of the first connectors electrically connects the cables connected to the different junction boxes to realize a series connection and / or a parallel connection of the plurality of solar cell chips. Each of the second connectors functions as a positive terminal or a negative terminal located at an end of the solar cell chip string formed by a plurality of solar cell chips connected in series and / or in parallel. For example, in a case where a plurality of solar cell chips are connected in series, in order to realize a series connection of two solar cell chips, a first connector connects a positive terminal of one junction box of two adjacent solar cell chips to a cable Are arranged between two adjacent solar cell chips for electrical connection with the negative terminal of the other one of the two adjacent solar cell chips. In the same manner, a plurality of solar cell chips are connected in series. The second connectors are arranged at both ends of a solar cell chip string formed by a plurality of solar cell chips connected in series and function as a positive electrode and a negative electrode of the solar cell chip string, respectively. In the case of a solar cell chip string formed by a plurality of solar cell chips connected in parallel, a solar cell chip string formed by a plurality of solar cell chips connected in series and then in parallel, or a plurality of solar cell chip strings formed in parallel The solar cell chip string formed by the solar cell chips is the same as described above, which is not described in detail in this embodiment. Each of the first connectors is positioned between the junction boxes of two adjacent solar cell chips. Each of the second connectors is located at one end of the solar cell chip string formed by a plurality of solar cell chips connected in series and / or in parallel, and functions as a positive electrode or a negative electrode of the solar cell chip string.

Preferably, the road surface power generation unit according to this embodiment includes a cable 122 connected to the solar cell chip 120, and a junction box 123, a cable 122, And further includes a first connector 124 and a second connector 126 connected to each other. 2 and 3, a cable 122 and a junction box 123 are arranged between the solar cell chip 120 and the lower glass sheet 110 and are embedded in the lower glass sheet 110. As shown in FIG. The first connector 124, which is arranged between two adjacent junction boxes 123 and electrically connects the two adjacent junction boxes, extends from the bottom of the lower glass sheet. A second connector 126 located at the end of the solar cell chip string extends from the bottom of the lower glass sheet 110 and extends laterally. Preferably, the first connector 124 located below the bottom of the lower glass sheet 110 is sealed by a sealed box 121. The cable is provided behind the solar cell chip 120, and the anti-aging cable and the internal wiring configuration are adapted to form a modularized surface power generation unit, thereby improving the use environment of the cable and extending the service life of the cable.

Preferably, the road surface power generation unit according to the embodiments of the present disclosure is further provided with a sealing strip 150. 1 to 3, the upper glass sheet 130 is formed by a solar cell 120 having a sealed space (not shown) formed by the upper glass sheet 130, the lower glass sheet 110 and the sealing strip 150 To the lower glass sheet 110 through the sealing strip.

4 is a schematic diagram of a road surface power generation system according to a preferred embodiment of the present disclosure; There is additionally provided a road surface power generation system according to embodiments of the present disclosure, including the road surface power generation unit 100 according to any embodiment of the present disclosure. The road surface power generation system further includes a charge controller (200) and a battery (300). The electric current generated by the surface power generation unit 100 is output to the battery 300 through the charge controller 200 to supply electric power to the electric device 400.

The number of solar cell chips included in the road surface power generation unit is not limited to this embodiment and can be set according to actual conditions. For example, when the road surface power generation unit is provided separately and supplies power to an isolated low power landscape lamp, only one solar cell chip is required. When the road surface power generation unit supplies power to a high power device such as a traffic volume indicator, a charge file, or a communication monitoring facility, the road surface power generation unit may include a plurality of solar cell chips. According to one embodiment, a plurality of road surface power generation units may be connected in series or in parallel to meet application requirements in different application scenarios with a greater demand for electricity.

Alternatively, each of the surface power generation units 100 may include one to ten solar cell chips 120. In this embodiment, each of the road surface generating unit 100 includes four solar cell chips 120. The electrical device 400 may be a landscape lamp, a traffic volume indicator, a charging file, a communication monitoring facility, and the like.

The road surface power generation system may further include an energy storage battery 500 configured to store electric energy. The energy storage battery 500 may be a lithium battery that collects residual electrical energy generated from solar energy under daylight conditions and provides electrical energy when solar energy is insufficient to supply. Lithium batteries have good adaptability to high temperature or low temperature environments.

5 is a schematic diagram of a road surface power generation system according to another preferred embodiment of the present disclosure; There is additionally provided a road surface power generation system according to embodiments of the present disclosure, including two or more road surface power generation units 100 according to any of the embodiments of the present disclosure. The road surface power generation system further includes a current convergence device 600 and an inverter 700. The two or more road surface generating units 100 are connected in series and generate electric power. The currents generated by the two or more surface power generation units 100 can be used to power the nearby electrical installations and power generation systems of buildings as well as devices on the road and on the roadside to meet the requirements of nearby electrical devices, Converged by the convergence device 600, output to the inverter 700, inverted by the inverter 700, and then output to the power grid 800.

Preferably, the components between the two adjacent surface-power generation units 100 are sealed by a sealing material. The second connector 126 located at the end of the road surface generating unit may be sealed by a sealing material to protect the second connector 126 from impact and corrosion so that the service life of the second connector 126 may be extended .

The structure, properties, and effects of the present disclosure have been described in detail above based on the embodiments illustrated in the drawings. The foregoing embodiments are merely preferred embodiments of the present disclosure. The present disclosure is not limited to the scope of implementation as exemplified by the Figures. Any simple changes, equivalents, and modifications to the embodiments based on the technical nature of the disclosure without departing from the technical solution of the disclosure are within the scope of the technical solution of the present disclosure.

100: Surface power generation unit 110: Lower glass sheet
120: solar cell chip 121: sealed box
122: cable 123: junction box
124: first connector 126: second connector
130: upper glass sheet 140: adhesive
150: sealing strip 200: charging controller
300: battery 400: electric device
500: Energy storage battery 600: Current convergence device
700: Inverter 800: Power grid

Claims (12)

A lower glass sheet arranged on the road base block on the road surface;
A solar cell chip fixed on the lower glass sheet; And
And an upper glass sheet covering the solar cell chip,
Wherein each of the lower glass sheet and the upper glass sheet is fixed to the solar cell chip by an adhesive.
The method according to claim 1,
Wherein the power generating material of the solar cell chip is a flexible material.
3. The method of claim 2,
Wherein the lower glass sheet is made of polymethylmethacrylate.
The method of claim 3,
Wherein the upper glass sheet is made of tempered glass or polymethylmethacrylate.
The method according to claim 1,
A surface power generation unit comprising one solar cell chip.
6. The method of claim 5,
Cable and junction box,
The cable is electrically connected to the solar cell chip through the junction box,
Wherein the cable and the junction box are arranged between the solar cell chip and the lower glass sheet and are embedded in the lower glass sheet.
The method according to claim 1,
A surface power generation unit comprising a plurality of solar cell chips.
8. The method of claim 7,
Further comprising cables, junction boxes and connectors,
Each of said plurality of solar cell chips being provided with one of said junction boxes;
One end of each of the cables being connected to one of the junction boxes, the other end of each of the cables being connected to one of the connectors;
The connectors comprising first connectors and second connectors;
Wherein each of the first connectors is electrically connected to cables connected to different junction boxes such that the plurality of solar cells are connected in series and / or in parallel, and the first connectors are connected between adjacent junction boxes And extends from the bottom of said bottom glass sheet;
And the second connectors function as positive and negative terminals of the solar cell chip string, respectively, located at both ends of the solar cell chip string formed by the plurality of solar cell chips connected in series and / or in parallel, Extending from the bottom of the lower glass sheet and extending laterally;
Wherein the cables and the junction boxes are arranged between the plurality of solar cell chips and the lower glass sheet and are embedded in the lower glass sheet.
9. The method of claim 8,
Wherein the first connectors located below the lower glass sheet are surrounded by sealed boxes.
10. The method of claim 9,
Wherein the upper glass sheet further comprises a sealing strip disposed between the lower glass sheet and the lower glass sheet such that the plurality of solar cell chips are located within a sealed space defined by the upper glass sheet, A surface power generation unit attached to a seat.
11. A road surface power generation system comprising a road surface power generation unit according to any one of claims 1 to 10, a charge controller and a battery, wherein a current generated by the road surface power generation unit is output to the battery by the charge controller, To the road surface.
10. A power converter comprising: two or more road surface power generation units, a current convergence device and an inverter according to any one of claims 1 to 10 connected in series, wherein the currents generated by the two or more road surface power generation units Converged by the device, output to the inverter, inverted by the inverter, and then output to the power grid.

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