CN114050152A

CN114050152A - Photovoltaic module

Info

Publication number: CN114050152A
Application number: CN202111488975.XA
Authority: CN
Inventors: 高培鑫; 李腾; 张立英; 吕贝; 高建辉
Original assignee: Huaneng Clean Energy Research Institute
Current assignee: Huaneng Clean Energy Research Institute
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-02-15

Abstract

The invention discloses a photovoltaic module which comprises lower-layer glass, an LED array, a battery piece array, upper-layer glass and an inverter junction box, wherein the LED array is used for displaying patterns and comprises a plurality of LED lamp bead chips arranged in an array, the adjacent LED lamp bead chips are connected through a conduction band, and the LED array is connected with the inverter junction box; the battery piece array is used for generating electricity and is connected with the miniature inverter junction box; the photovoltaic module is combined with the LED curtain wall screen formed by the LED arrays, so that the photovoltaic module generates electricity in the daytime and displays patterns at night, and the commercial value of the photovoltaic module is improved.

Description

Photovoltaic module

Technical Field

The invention belongs to the technical field of solar photovoltaic power generation, and particularly relates to a photovoltaic module.

Background

Curtain walls are common design forms of modern buildings, and often have the effects of enabling the buildings to be more attractive and scientific, so that the curtain walls are often used in modern buildings, particularly commercial buildings.

The photovoltaic curtain wall is an embodiment form of integrated application of photovoltaic buildings, namely, on the basis of the traditional curtain wall, a photovoltaic module is organically combined, so that the curtain wall system can convert solar energy into electric energy by utilizing the photovoltaic module while realizing the functions of the curtain wall system, and power supply is provided for the curtain wall or the building. The photovoltaic curtain wall endows the building with new functions, so that the building can supply energy for the building while realizing the living function, and the photovoltaic curtain wall is the mainstream direction of future photovoltaic power generation technology and building energy conservation development.

The contents of the displayed characters or pictures are sometimes required to be adjusted according to actual needs so as to more effectively exert the functions of indication, notification or propaganda. The photovoltaic curtain wall converts solar energy into electric energy only when sunlight exists in the daytime, power generation is not performed at night, dynamically adjustable characters or patterns cannot be displayed on the photovoltaic curtain wall after the photovoltaic curtain wall is installed, and the functions of indication, notification or propaganda cannot be achieved; therefore, how to make the photovoltaic module play a role at night and improve the application efficiency of the photovoltaic module is a research direction for further energy conservation and consumption reduction.

Disclosure of Invention

The invention provides a photovoltaic module which is used as a curtain wall by combining an LED technology and a photovoltaic technology, generates power in the daytime and displays animation at night, so that the photovoltaic module has commercial value.

In order to achieve the purpose, the photovoltaic module comprises an LED array, a battery piece array and an inverter junction box; the LED array is used for displaying patterns and comprises a plurality of LED lamp bead chips arranged in an array, adjacent LED lamp bead chips are connected through a conduction band, and the LED array is connected with the inverter junction box; the battery piece array is used for generating electricity and is connected with the miniature inverter junction box; the inverter junction box is used for converting direct current output by the battery piece array into alternating current and receiving instructions of an upper computer to control patterns displayed by the LED array.

Furthermore, the battery piece array comprises battery pieces arranged in an array, no gap exists between the battery pieces in the same row, a gap exists between the battery pieces in the same column, and the gap is used for placing the LED lamp bead chips.

Further, the electrodes between the battery pieces in the same column are connected in series through the welding strips.

Furthermore, the battery piece is a double-sided battery piece.

Furthermore, the inverter junction box comprises a processor module, a power carrier module, an LED matrix control module and an inversion module, wherein the power carrier module, the LED matrix control module and the inversion module are all connected with the processor module; the inversion module is connected with the output of the battery piece array; the processor module is used for converting direct current output by the battery piece array into alternating current through the control inversion module, receiving an instruction of an upper computer and controlling patterns displayed by the LED array through the LED matrix control module; the power carrier module is used for transmitting signals with an upper computer; the power carrier module is used for realizing the communication between the processor module and the upper computer.

Further, the LED array, the battery piece array and the inverter junction box are arranged between the lower glass plate and the upper glass plate.

Further, a filler is arranged in a gap between the lower glass plate and the upper glass plate.

Furthermore, the filler is EVA, polyolefin, silica gel or a high molecular compound.

Compared with the prior art, the invention has at least the following beneficial technical effects:

according to the invention, the photovoltaic module is combined with the LED curtain wall screen formed by the LED array, so that the photovoltaic module generates electricity in the daytime, characters, pictures, animations and videos are displayed at night, and the displayed content is changed at any time according to the needs, thereby improving the commercial value of the photovoltaic module.

Furthermore, the battery piece is a double-sided battery piece, so that the total generated energy of the battery piece array can be greatly increased.

Furthermore, the photovoltaic module and the LED array are arranged between the two layers of glass, so that the photovoltaic module is prevented from being damaged by severe weather such as wind, frost, snow and rain, and the service life of the photovoltaic module is prolonged.

Furthermore, a filler is arranged in a gap between the lower glass plate and the upper glass plate to prevent the battery electrode and the interconnecting wire from being corroded.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a photovoltaic module with an advertising function;

FIG. 2 is a schematic diagram of an LED array;

FIG. 3 is a schematic diagram of a cell array;

FIG. 4 is a schematic diagram of a battery plate and LED array arrangement;

FIG. 5 is a schematic diagram of the connection of the LED array, the battery plate array and the micro-inverter;

fig. 6 is a functional schematic of a micro-inverter.

In the drawings: 1. lower floor's glass board, 2, LED array, 21, LED lamp pearl chip, 22, conduction band, 3, battery piece array, 31, first battery piece, 32, second battery piece, 33, third battery piece, 34, weld the area, 4, upper glass board, 5, micro-inverter terminal box.

Detailed Description

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.

As shown in fig. 1, the present invention provides a photovoltaic module comprising: lower glass plate 1, LED array 2, photovoltaic module and upper glass plate 4. The photovoltaic module is a cell array 3.

The gap between the lower glass plate 1 and the upper glass plate 4 can be filled with EVA, polyolefin, silica gel or high molecular compound to supplement the gap.

As shown in fig. 2, the LED array 2 is composed of LED bead chips 21 and a conduction band 22. LED lamp pearl chip 21 forms the array structure, and LED lamp pearl chip 21 passes through conduction band 22 with the LED lamp pearl chip that is located its upper and lower, left and right sides and connects, and conduction band 22 is connected in LED lamp pearl chip 21 bottom, and the conduction band 22 outer layer is transparent insulating material, and the inlayer contains the wire for LED lamp pearl chip transmission control signal and electric power.

As shown in fig. 3, the cell array 3 is used for converting solar energy into electrical energy, in the cell array 3, a first cell 31 and a second double-sided cell 32 in a longitudinal direction are arranged on the LED array 2, the first cell 31 and the second cell 32 are longitudinally aligned, an electrode of the first cell 31 and an electrode of the second cell 32 are connected by a solder strip 34, and so on, and the cells in the same column in the cell array are in a series structure. The distance between the first battery piece 31 and the second battery piece 32 is the width of the LED lamp bead chip 21 in the longitudinal direction. The second cell piece 32 and the third cell piece 33 are in contact with each other. The first battery piece 31, the second battery piece 32 and the third battery piece 33 are all double-sided battery pieces. As shown in fig. 4, the battery sheet array 3 is stacked on a longitudinal conductive belt 22. The first battery piece 31 and the second double-sided battery piece 32 in the longitudinal direction are arranged between the longitudinal intervals of the LED lamp bead chips 21, and the plurality of solder strips 34 cross over the conductive strip 22.

As shown in fig. 5, the internal cells in the cell array are connected in series in the longitudinal direction, and are connected to the microinverter junction box 5 by solder ribbons 34. LED lamp pearl chip 21 is connected to on the micro-inverter terminal box 5 through conduction band 22 in LED array 2.

As shown in fig. 6, the microinverter junction box 5 includes a processor module, a power carrier module, an LED matrix control module, and an inversion module. The power carrier module, the LED matrix control module and the inversion module are all connected with the processor module. The LED matrix control module is connected with the input of the LED array, and the inverter module is connected with the output of the battery piece array.

The processor module adopts stm32 series chips, and the battery piece array converts direct current into alternating current by controlling the inverter module. The processor module controls the LED matrix control module at the same time, and the processor receives instructions of an upper computer and controls the LED array to display contents such as characters, pictures, animations, videos and the like by sending instructions to the LED matrix control module.

The power carrier module is used for realizing the communication between the processor module and the upper computer, is divided into a transmitting part and a receiving part and comprises a transmitting processing unit, a logic processing unit, a carrier generator and a carrier transformer; the signal sending processing unit of the power carrier module sends signals through a serial port, the logic processing unit of the power carrier module combines the signals with a base frequency signal generated by a carrier generator, and the signals are amplified through power and generate high-frequency signals on a power line through a carrier transformer to be transmitted to an upper computer. The receiving part amplifies, detects and shapes the high-frequency signal transmitted by the power line, extracts information and transmits the information to the serial port of the processor module.

Claims

1. A photovoltaic module, characterized by comprising an LED array (2), a battery sheet array (3) and an inverter junction box (5);

the LED array (2) is used for displaying patterns and comprises a plurality of LED lamp bead chips (21) which are arranged in an array, the adjacent LED lamp bead chips (21) are connected through a conduction band (22), and the LED array is connected with the inverter junction box (5);

the battery piece array (3) is used for generating electricity, and the battery piece array (3) is connected with the miniature inverter junction box (5);

the inverter junction box (5) is used for converting direct current output by the battery piece array into alternating current and receiving instructions of an upper computer to control patterns displayed by the LED array (2).

2. The photovoltaic module according to claim 1, wherein the cell array (3) comprises a plurality of cells arranged in an array, the cells in the same row have no gap therebetween, and the cells in the same column have gaps therebetween, and the gaps are used for accommodating the LED bead chips (21).

3. A photovoltaic module according to claim 2, characterized in that the electrodes between the cells of the same row are connected in series by solder strips (34).

4. The photovoltaic module according to claim 2, wherein the cell sheet is a double-sided cell sheet.

5. The photovoltaic assembly according to claim 1, wherein the inverter junction box comprises a processor module, a power carrier module, an LED matrix control module and an inverter module, and the power carrier module, the LED matrix control module and the inverter module are all connected with the processor module; the inversion module is connected with the output of the battery piece array;

the processor module is used for converting direct current output by the battery piece array into alternating current through the control inversion module, receiving an instruction of an upper computer and controlling patterns displayed by the LED array through the LED matrix control module; the power carrier module is used for transmitting signals with an upper computer; the power carrier module is used for realizing the communication between the processor module and the upper computer.

6. A photovoltaic module according to claim 1, characterized in that the LED array (2), the cell array (3) and the inverter junction box (5) are arranged between the lower glass pane (1) and the upper glass pane (4).

7. A photovoltaic module according to claim 6, characterized in that the space between the lower glass plate (1) and the upper glass plate (4) is filled with a filler.

8. The photovoltaic module of claim 7, wherein the filler is EVA, polyolefin, silica gel, or polymer.