High-conversion-efficiency photovoltaic module and manufacturing method

Abstract

The invention discloses a photovoltaic module with high conversion efficiency and a manufacturing method. The module comprises a front cover plate, a front packaging layer, a solar cell layer, a backpackaging layer and a back cover plate which are sequentially arranged from top to bottom; the solar cell sheet layer comprises a plurality of solar cell strings; each group of solar cell strings comprises a plurality of solar cells connected by using a first conductive part; the solar cell strings are connected through second conductive parts, first insulating parts are arranged between the solarcells, second insulating parts are arranged between the solar cell strings, and third insulating parts are arranged between the solar cell strings and the second conductive parts. According to the invention, the insulating parts are arranged between the solar cells, between the solar cell strings and between the solar cell strings and the conductive parts, so the invalid area in the module is greatly reduced, the size and area of the module are reduced on the premise of ensuring the maximum output power of the module, and the overall conversion efficiency of the module is improved.

Description

technical field [0001] The invention relates to the technical field of solar energy, in particular to a photovoltaic module with high conversion efficiency and a manufacturing method. Background technique [0002] As a clean and renewable new energy, solar energy has received more and more attention, and its application is becoming more and more extensive. At present, one of the most important applications of solar energy is photovoltaic power generation. Photovoltaic power generation uses the photovoltaic effect to directly convert solar energy into electrical energy. The basic unit of photovoltaic power generation is a solar cell. In a specific application, a plurality of solar cells are usually formed into a solar cell module, and then each solar cell module is connected. constitute the overall current output. [0003] With the rapid growth of photovoltaic module installed capacity and the limited available installation area, the market demand for high conversion efficie...

AI Technical Summary

Problems solved by technology

At present, the cell technology in the market is relatively mature, and the space for improving the efficiency of cells is limited; to reduce the loss of component packaging, the common way is to increase the output power of the component by reducing the optical loss and electrical loss in the process of component packaging. With the use of technology and materials, the packaging loss of components can be controlled at a very low level at present, and it is difficult to further improve this aspect

Since the creepage distance requirements between the internal charged body and the conductor and the process realization requirements need to be considered during the design of the module, there is a certain distance between the cells, between the cell strings, and between the cells and the busbar, which leads to There are more invalid areas in the component, which reduces the conversion efficiency of the component

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