Synergistic electricity-heat combined solar cell module and preparation method thereof

Abstract

The invention relates to a synergistic electricity-heat combined solar cell module, which comprises a frame body convenient to convey heat transfer medium and a module structure arranged inside the frame body, wherein the module structure is composed of a light-transmission front plate, a transparent EVA (ethylene-vinyl acetate copolymer) layer, a solar cell chip and a circuit sealed in sequence by a packaging film, a heat-conducting composite EVA back sealing film and a heat exchange back sealing element; the heat-conducting composite EVA back sealing film is a high-thermal conductivity padding composite EVA back sealing insulated film; the heat exchange back sealing element is a sealed back sealing element with a reinforced heat transfer runner or a comb tooth structure, and the heat-conducting composite EVA back sealing film and the heat exchange back sealing element are directly laminated and attached. The heat transfer efficiency is improved by a functional composite modifying method; the reinforced heat exchange area is large; the heat transfer flow is short; the reliability is high; the basic structure and appearance of a typical electricity-heat combined solar cell module are not changed; the volume and weight of the module are small; the cost is low, and the installation, use and maintenance are convenient.

Description

【Technical field】 [0001] The invention relates to the technical field of solar cell components, in particular to a synergistic electric-thermal combined solar cell component and a preparation method thereof. 【Background technique】 [0002] The ever-increasing demand for energy, as well as the resource and environmental problems faced by traditional fossil energy, make the development and utilization of green renewable energy an inevitable choice for human society. As a clean and renewable energy source, solar energy has been widely used all over the world. Solar photovoltaic power generation can directly produce high-grade energy-electric energy that is convenient for transportation, storage, conversion and utilization, so it is more valued and favored by people. The main problems to be solved urgently in photovoltaic power generation are to further improve the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy, prolong the service li...

AI Technical Summary

Problems solved by technology

However, due to the low thermal conductivity of the EVA packaging material (actual measurement is only 0.28W / mk), the heat transfer resistance of the battery module is mainly at the packaging film; therefore, the actual heat transfer effect of the existing electro-thermal technology Not ideal enough, the photoelectric conversion efficiency of the battery and the comprehensive utilization rate of solar energy need to be improved urgently

At the same time, the additional heat exchange cycle system increases the cost of the components, and makes the structure of the entire set of PV-T components more complicated, operation and maintenance are more difficult, and reliability decreases; the occupied space and weight increase significantly, which brings inconvenience to installation. It also affects the aesthetics and practicality of battery components

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