Open-nail-free roof photoelectric building material

Abstract

The invention discloses an open-nail-free roof photoelectric building material which comprises a plurality of photoelectric building material units, each photoelectric building material unit is provided with a series-parallel battery unit, and the two sides of each photoelectric building material unit are provided with lap joint areas. The adjacent photoelectric building material units are overlapped through the overlapping areas and then are connected by adopting the visible-nail-free splicing assemblies; the photoelectric building material unit on the outermost side is provided with a junction box fixed to the upper portion of the lap joint area. The photoelectric building material is reasonable in design, ingenious in structure and capable of generating electricity while serving as the building material, the series-parallel battery units are reasonably designed to improve the electricity generating efficiency, the influence of shielding on battery electricity generation is reduced, meanwhile, the junction box is reasonably designed on the side face, installation of the whole photoelectric building material is facilitated, and the stability of the photoelectric building material can also be improved; the building materials are connected more stably through the adjacent building material units without the exposed nails reasonably, and the defects that use of the photoelectric building materials is affected and the service life of the building materials is shortened due to the fact that exposed holes are formed in screws can be effectively overcome due to the fact that the exposed holes are formed in the upper surfaces of the adjacent building material units without the exposed nails.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a photovoltaic building material for roofing without nails. Background technique [0002] Photoelectric building materials are building materials that can convert solar energy into electrical energy and are used in building construction. The building materials are generally composed of substrates, photovoltaic cells and glass plates. Multiple photovoltaic building materials need to be spliced ​​during construction, and the traditional splicing method Yes, make the overlapping area of ​​the adjacent building materials, fix them with screws after overlapping, and use the screws to fix the photovoltaic building materials to the purlins, so as to complete the installation of the photovoltaic building materials; although this installation method is fast, the screws will damage the building materials when the screws are installed. Photoelectric building materials, such as the holes formed ...

AI Technical Summary

Problems solved by technology

[0002] Photovoltaic building materials are building materials that can convert solar energy into electrical energy and are used in building construction. The building materials are generally composed of substrates, photovoltaic cells and glass plates. During construction, multiple photovoltaic building materials need to be spliced. The traditional splicing method Yes, the adjacent building materials are made into overlapping areas, and after the overlapping, they are fixed by screws, and the photovoltaic building materials are fixed to the purlins with screws, so as to complete the installation of photovoltaic building materials; although this installation method is fast, the screws will be damaged when installing building materials. Photoelectric building materials, such as the holes formed on the photoelectric building materials when installing screws, and if the holes are exposed outside for a long time, the photoelectric building materials will be corroded because of the holes. The corrosion process is, first from It is exposed to the external hole, and then diffuses outward with the hole as the center, thus affecting the entire photovoltaic building material, which seriously affects the service life of the photovoltaic building material, and seriously directly affects the normal use of the photovoltaic building material

[0003] Moreover, the traditional photovoltaic building material circuit connection method adopts a pure series connection method, and each power generation unit (photovoltaic cell) is connected positively and negatively to form a series circuit; if one power generation unit is blocked, the blocked area will be affected by the light. The current in the area drops even to zero volts. At this time, other batteries are still working normally, which will cause the blocked battery to become a resistor, and the other batteries will supply power in reverse, which will cause the barrel effect, and all the batteries in series will be affected.

Eventually, the power generation of the overall components will drop, and even cause a fire at the bottom of the hot battery

[0004] And the traditional photoelectric building material junction box is located at the bottom. The purpose of this setting is to facilitate lead wires and wiring. installation and use

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