Solar photovoltaic-thermal system and manufacturing process thereof

Abstract

The invention discloses a solar photovoltaic-thermal system and a manufacturing process thereof, which belong to the field of the photovoltaic-thermal technology. The system cavity is internally provided with a heat insulation layer, a photovoltaic assembly, a heat absorption plate, a heat exchange assembly and a heat preservation layer sequentially from top to bottom, wherein the core component of the photovoltaic assembly is a photovoltaic cell; and the heat absorption plate adopts a glass substrate. As the glass substrate and a silicon solar cell have equivalent material thermal expansion coefficient, when the cell works to enable the temperature to rise, the thermal stress of the contact surface between the glass substrate and the silicon solar cell can be reduced, cell breaking or connecting wire falling caused by the thermal stress can be avoided, and the service life of products can be prolonged; and the photovoltaic cell, the glass substrate and a microchannel heat exchanger are laminated integrally through a hot melt adhesive, the thermal resistance between a heat transfer plate and the heat exchange assembly is reduced based on the surface smoothness of the microchannel heat exchanger and the low loss thermal resistance characteristic of the hot melt adhesive, the product manufacturing steps are simplified, and the product manufacturing cost is reduced.

Description

technical field [0001] The invention belongs to the field of photovoltaic photothermal technology, and in particular relates to a solar photovoltaic photothermal system and a manufacturing process thereof. Background technique [0002] With the continuous progress of society and the rapid development of science and technology, energy issues have become the most concerned issues of people. As the foundation of a country's national economic and social development, energy has become a bottleneck that restricts social and economic development and needs to be solved urgently. With the shortage of non-renewable energy reserves such as coal and oil, people have turned their attention to the rational utilization of new renewable energy, and among all new energy, solar energy has become the focus of attention due to its unique advantages. [0003] Solar photovoltaic / thermal comprehensive utilization technology (Photovoltaic / thermal, PV / T) combines photovoltaic cells with solar heat ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high manufacturing cost, low energy utilization rate and poor product reliability existing in the existing solar photovoltaic photothermal system, the present invention provides a solar photovoltaic photothermal system

Images