Photovoltaic small-tile assembly capable of replacing building materials and its working surface circuit system

Abstract

The present invention discloses a photovoltaic small tile assembly that can replace building materials and a working surface circuit system thereof, wherein the photovoltaic small tile assembly includes a frame and photovoltaic small tiles arranged in the frame, wherein the photovoltaic small tiles include, from top to bottom, a front panel layer, a front encapsulation film layer, a battery layer, a rear encapsulation film layer, an intermediate glass layer, an intermediate encapsulation film layer and a rear panel functional layer, wherein the area of ​​the intermediate glass layer is larger than that of the front panel layer and the battery layer for installation and fixation, and the intermediate encapsulation film is a functional film. The structure of the present invention is ingenious, so that the photovoltaic small tile assembly can have certain decorative functions and functions such as waterproofing, bonding explosion-proofing, and strength enhancement as required in addition to the traditional power generation function, which greatly improves the decorative availability and durability of the photovoltaic small tiles, is suitable for use in different scenes instead of building materials, and can be quickly installed and fixed, thereby greatly expanding the photovoltaic power generation utilization area of ​​sunlight, has huge economic value, is highly practical, and is worthy of promotion.

Description

Technical Field

[0001] The invention belongs to the field of solar power generation, and in particular relates to a photovoltaic small-tile component capable of replacing building materials and a working surface circuit system thereof. Background Art

[0002] With the development of society, energy is becoming increasingly scarce. As an emerging green energy source, solar energy is increasingly valued by everyone. In the prior art, there are many designs for installing photovoltaic tiles on roofs to utilize solar energy. However, when photovoltaic tiles are damaged, it is difficult to check, which results in a lot of time for troubleshooting and repair. Therefore, people have been committed to effectively improving the speed of troubleshooting. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a photovoltaic small-tile component and a working surface circuit system thereof which can replace building materials.

[0004] The present invention is achieved through the following technical solutions:

[0005] A photovoltaic small tile assembly that can replace building materials, the photovoltaic small tile assembly includes a frame and photovoltaic small tiles arranged in the frame, the photovoltaic small tiles include, from top to bottom, a front panel layer, a front packaging film layer, a battery cell layer, a rear packaging film layer, an intermediate glass layer, an intermediate packaging film layer and a rear panel functional layer, the area of ​​the intermediate glass layer is larger than that of the front panel layer and the battery cell layer for installation and fixation, and the intermediate packaging film layer is a functional film.

[0006] Preferably, the unit size of the photovoltaic small tile is 400-450 mm in length and 300-400 mm in width.

[0007] More preferably, the photovoltaic tiles are formed into one standard piece by 1 unit or 2 units or 3 units are combined to form one standard piece, the length of the standard piece is the length of 1 unit or the length of 2 units or 3 units combined, and the width is a uniform size. During installation, the three standard pieces are used in conjunction with each other to facilitate quick installation and save installation cycle.

[0008] Preferably, the surface of the front panel layer is a longitudinal stripe structure, and more preferably, the front panel layer is a self-cleaning glass with a longitudinal stripe structure.

[0009] Preferably, the intermediate packaging film is an EVA or PVB functional film, and the functions of the functional film include: displaying color (can be designed to be black, yellow, brown, dark green, etc.), waterproofing, bonding explosion-proof, strengthening, etc.

[0010] Preferably, the rear plate functional layer is glass, a ceramic substrate, a cement plate or a metal plate.

[0011] Preferably, the photovoltaic small tile assembly that can replace building materials is used for roof tiles, wall tiles, and cement floors.

[0012] Preferably, a sealant is used to seal the frame and the photovoltaic tile to protect the edge of the photovoltaic tile. More preferably, the sealant is butyl glue.

[0013] Preferably, the photovoltaic small-tile assembly is provided with a wiring terminal.

[0014] The working surface circuit system of the above-mentioned photovoltaic small-tile components that can replace building materials includes a number of DC bus control boxes that are connected in series through cables and then connected to the inverter. Each DC bus control box is connected to a DC bus. The DC bus is provided with a number of quick connectors with quick plug-in functions according to a certain distance and number. The monitored photovoltaic small-tile components are provided with wiring terminals. The photovoltaic small-tile components are connected to the DC bus by inserting the wiring terminals into the quick connectors. The DC bus control box is provided with a number of control chips arranged in parallel with each other. Each control chip monitors and controls a quick connector on the DC bus through an electrical connection, and then monitors and controls the photovoltaic small-tile component connected to it. The DC bus control box is wirelessly connected to the monitoring terminal for transmitting the data of each photovoltaic small-tile to the monitoring terminal in real time.

[0015] Preferably, the number of control chips in each DC bus control box is equal to the number of quick connectors provided on the DC bus.

[0016] Preferably, the number of quick connectors on the DC bus is adapted to the current limit that the DC bus can withstand.

[0017] The beneficial effects of the present invention are:

[0018] The photovoltaic small tile assembly of the present invention has an ingenious structure. Due to the cooperation between the middle packaging film layer and the rear panel functional layer, the photovoltaic small tile assembly has a certain decorative function and waterproof, bonding explosion-proof, strength strengthening and other functions in addition to the traditional power generation function, which greatly improves the decorative usability and durability of the photovoltaic small tile, and is suitable for use in different scenes instead of building materials. Moreover, the area of ​​the middle glass layer is larger than that of the front panel layer and the battery layer, which is conducive to the rapid installation and fixation of the photovoltaic small tile, thereby greatly expanding the photovoltaic power generation utilization area of ​​sunlight, with huge economic value and strong practicality.

[0019] The photovoltaic small tile components and their working surface circuit systems, which can replace building materials, have a simple and ingenious structure and excellent performance. The wiring terminals on the photovoltaic small tiles can be quickly inserted into the quick connectors on the DC bus during installation to achieve the connection between the photovoltaic small tiles and the DC bus control box. Then, each quick connector is monitored and controlled by each control chip in the DC bus control box, so that each photovoltaic small tile can be monitored and controlled. Through the unlimited transmission function of the DC bus control box, the data of each photovoltaic tile can be transmitted to the monitoring terminal in real time. Once the current changes, the photovoltaic tiles connected to the DC bus control box can be precisely checked and repaired, which saves a lot of troubleshooting time. In addition, this quick plug-in structure saves a lot of connecting cables and avoids wiring errors that are easy to occur by installers, which is convenient for later operation and maintenance. It is extremely practical and worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings:

[0021] Figure 1 This is a schematic diagram of the photovoltaic small tile structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the photovoltaic small-tile assembly of the present invention;

[0023] Figure 3 It is a schematic diagram of the connection structure between two photovoltaic small-tile components;

[0024] Figure 4 It is a schematic structural diagram of the photovoltaic small-tile assembly with wiring terminals of the present invention.

[0025] Figure 5 It is a schematic diagram of the DC bus control box and the DC bus connection structure of the present invention;

[0026] Figure 6 It is a schematic diagram of the connection structure between DC bus control boxes. DETAILED DESCRIPTION

[0027] like Figure 1-4 As shown, a photovoltaic small tile assembly 100 that can replace building materials includes a frame 20 and a photovoltaic small tile 10 arranged in the frame 20. The photovoltaic small tile 10 includes, from top to bottom, a front panel layer 1, a front packaging film layer 2, a battery cell layer 3, a rear packaging film layer 4, an intermediate glass layer 5, an intermediate packaging film layer 6 and a rear panel functional layer 7. The area of ​​the intermediate glass layer 5 is larger than that of the front panel layer 1 and the battery cell layer 3 for installation and fixation. The intermediate packaging film layer 6 is a functional film.

[0028] The unit size of the photovoltaic small tile 10 is 400-450 mm in length and 300-400 mm in width.

[0029] The photovoltaic tile 10 is a standard piece formed by 1 unit or 2 units or 3 units combined to form a standard piece. The length of the standard piece is the length of 1 unit or the length of 2 units or 3 units combined, and the width is a uniform size. During installation, the three standard pieces are used in conjunction with each other to facilitate quick installation and save installation cycle.

[0030] The surface of the front panel layer 1 is a longitudinal stripe structure. More preferably, the front panel layer is a self-cleaning glass with a longitudinal stripe structure.

[0031] The intermediate packaging film 6 is an EVA or PVB functional film, and the functions of the functional film include: display color (can be designed to be black, yellow, brown, dark green, etc.), waterproof, bonding explosion-proof, strengthening, etc.

[0032] The rear plate functional layer 7 is made of glass, ceramic substrate, cement plate or metal plate.

[0033] The photovoltaic small tiles are used for roof tiles, wall tiles, and cement floors.

[0034] Butyl rubber is used to seal the frame 20 and the photovoltaic tile 10 to protect the edge of the photovoltaic tile 10.

[0035] The photovoltaic small-tile assembly 100 is provided with a connection terminal 8 .

[0036] The photovoltaic small tile assembly of the present invention has an ingenious structure. Due to the cooperation between the middle packaging film layer 3 and the rear panel functional layer, the photovoltaic small tile assembly has not only the traditional power generation function, but also certain decorative functions and functions such as waterproofing, bonding explosion-proofing, and strength enhancement as needed, which greatly improves the decorative usability and durability of the photovoltaic small tile, and is suitable for use in different scenes instead of building materials. Moreover, the area of ​​the middle glass layer is larger than that of the front panel layer and the battery layer, which is conducive to the rapid installation and fixation of the photovoltaic small tile, thereby greatly expanding the photovoltaic power generation utilization area of ​​sunlight, has huge economic value, strong practicality, and is worthy of promotion.

[0037] like Figure 5-6As shown, the working surface circuit system of the photovoltaic small-tile assembly that can replace building materials comprises a plurality of DC bus control boxes 200 connected in series through cables and then connected to the inverter, each DC bus control box 200 is connected to a DC bus 300, and the DC bus 300 is provided with a plurality of quick connectors with quick plug-in functions according to a certain distance and number, and the monitored photovoltaic small-tile assembly 100 is provided with a wiring terminal 8, and the photovoltaic small-tile assembly 100 is connected to the DC bus 300 by inserting the wiring terminal 8 into the quick connector, and the DC bus control box 200 is provided with a plurality of control chips 400 arranged in parallel with each other, and each control chip 400 monitors and controls a quick connector on the DC bus through an electrical connection, and then monitors and controls the photovoltaic small-tile assembly 100 connected thereto, and the DC bus control box 200 is wirelessly connected to the monitoring terminal for transmitting the data of each photovoltaic small-tile assembly to the monitoring terminal in real time.

[0038] The number of control chips 400 in each DC bus control box 200 is equal to the number of quick connectors provided on the DC bus 300 .

[0039] The number of quick connectors on the DC bus 300 is adapted to the current limit that the DC bus can withstand.

[0040] Working principle: In the photovoltaic small-tile assembly and its working surface circuit system of the alternative building material, the DC bus control box cooperates with the DC bus to first connect the photovoltaic small tiles in parallel to add the current to reach the inverter current, and then connect the DC bus control boxes in series to add the voltage to reach the inverter voltage, and finally start the inverter.

[0041] The photovoltaic small tile assembly of the present invention, which can replace building materials, and its working surface circuit system have a simple and ingenious structure and excellent performance. The wiring terminals on the photovoltaic small tile can be quickly inserted into the quick connectors on the DC bus during the installation process to achieve the connection between the photovoltaic small tile and the DC bus control box, and then each quick connector is monitored and controlled by each control chip in the DC bus control box, so that each photovoltaic small tile can be monitored and controlled. Through the unlimited transmission function of the DC bus control box, the data of each photovoltaic small tile can be transmitted to the monitoring terminal in real time. Once the current changes, the photovoltaic small tiles connected to the DC bus control box can be precisely checked and repaired, which saves a lot of troubleshooting time. In addition, this quick plug-in structure saves a lot of connecting cables and avoids wiring errors that are easy to occur among installers, which is convenient for later operation and maintenance. It is extremely practical and worthy of promotion.

[0042] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope defined in the claims.

Claims

1. A photovoltaic small tile assembly that can replace building materials, the photovoltaic small tile assembly comprising a frame and photovoltaic small tiles arranged in the frame, characterized in that: The photovoltaic tile comprises, from top to bottom, a front panel layer, a front packaging film layer, a battery cell layer, a rear packaging film layer, an intermediate glass layer, an intermediate packaging film layer and a rear panel functional layer. The area of ​​the intermediate glass layer is larger than that of the front panel layer and the battery cell layer for installation and fixation. The intermediate packaging film layer is a functional film. The frame and the photovoltaic tile are sealed with sealant to protect the edges of the photovoltaic tile. The photovoltaic tile assembly is provided with wiring terminals.

2. The photovoltaic small-tile assembly as a substitute for building materials according to claim 1, characterized in that: The unit size of the photovoltaic small tile is 400-450mm in length and 300-400mm in width.

3. The photovoltaic small-tile assembly as a substitute for building materials according to claim 2, characterized in that: The photovoltaic small tile is a standard piece formed by 1 unit or 2 units or 3 units are combined to form a standard piece. The length of the standard piece is the length of 1 unit or the length of 2 units or 3 units combined, and the width is a uniform size.

4. The photovoltaic small-tile assembly as a substitute for building materials according to claim 1, characterized in that: The intermediate packaging film is an EVA or PVB functional film, and the EVA or PVB functional film is a colored waterproof, adhesive explosion-proof or reinforced functional film.

5. A working surface circuit system for a photovoltaic small-tile assembly of alternative building materials as claimed in any one of claims 1 to 4, characterized in that: The invention comprises a plurality of DC bus control boxes which are connected in series through cables and then connected to an inverter, each DC bus control box is connected to a DC bus, a plurality of quick connectors with quick plug-in function are arranged on the DC bus at a certain distance and quantity, wiring terminals are arranged on the monitored photovoltaic small-tile components, the photovoltaic small-tile components are connected to the DC bus by inserting the wiring terminals into the quick connectors, a plurality of control chips arranged in parallel with each other are arranged in the DC bus control box, each control chip monitors and controls a quick connector on the DC bus through electrical connection and then monitors and controls the photovoltaic small-tile component connected thereto, and the DC bus control box is connected to the monitoring terminal through wireless communication.

6. The working surface circuit system according to claim 5, characterized in that: The number of control chips in each DC bus control box is equal to the number of quick connectors provided on the DC bus.

7. The working surface circuit system according to claim 5, characterized in that: The number of quick connectors on the DC busbar is adapted to the current limit that the DC busbar can withstand.

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