Manufacture method of photovoltage-construction integrated solar photovoltaic assembly

Abstract

The invention discloses a fabrication method of a building integrated photovoltaics solar photovoltaic module. The fabrication method comprises the following steps: folding and putting glass sheet-PVB film-solar cell-PVB film-glass sheet in a flexible air bag, depressuizing the gas bag, pressurizing the outside of the folded module after heating, and cooling slowly to obtain the solar photovoltaic module. In the fabrication method, air in the module is removed by vacuumizing the air bag, a fusion temperature is selected to cause the PVB film to have proper fluidity, the module is moderately pressed by virtue of atmospheric pressure and dead weight of the glass to prevent the solar cell from breakage and obtain higher yield, and an obtained product meets the requirements of the building safety glass specification and can be used in enclosures of a building including curtain walls, roofs, sunshades, doors, windows, guard fences and floors, thus realizing the building integrated photovoltaics.

Description

technical field [0001] The invention relates to a manufacturing method of a solar power generation device, in particular to a manufacturing method of a solar photovoltaic module used for photovoltaic-building integration. Background technique [0002] Existing solar photovoltaic modules are generally made of high light-transmitting glass on the upper layer, glass or TPT board on the lower layer, EVA film and solar cells in the middle, and the composite structure is protected by aluminum frames and other frames, and then assembled outdoors or in buildings. as a power generating device. But this way of power generation combined with buildings is just that photovoltaic products are simply attached to the building (BAPV form), rather than photovoltaic products integrated into the building (BIPV form) and become an integral part of the building. [0003] Chinese patent publication CN101232053 discloses a process double-glass photovoltaic module and its production method. The pho...

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Problems solved by technology

[0003] Chinese patent publication CN101232053 discloses a process double-glass photovoltaic module and its production method. The photovoltaic module includes the following layer structure: the bottom layer is process glass; the top layer is solar photovoltaic glass; the middle layer is two layers of EVA sealing film, the two layers A crystalline silicon battery is sandwiched between the EVA sealant film, and it adopts a double glass structure, which has high impact strength and good weather resistance, but the adsorption strength between the EVA interlayer and the glass is low (about 5.15N / mm), which cannot reach the building safety glass Code requirements, not applicable to building envelope

However, due to the large difference between the properties of PVB materials and EVA materials, and the solar cells are easily broken, when solar cells appear in the composite layer, the manufacturing method of laminated composite glass or the manufacturing method of EVA interlayer solar cell modules is adopted. The solar cells are broken and cannot be used to manufacture usable solar cell modules, so there is no domestic report of PVB material as a composite material for solar cell modules