Radiating device for photovoltaic battery

Abstract

The invention provides a heat sink for a photovoltaic cell. The heat sink comprises a photovoltaic cell panel. The heat sink is characterized by further comprising one or a group of heat radiation plates, one side of the heat radiation plate is jointed with the back face of the photovoltaic cell panel, the heat radiation plate is a hollow structure the inside of which is provided with a large number of synclastic microporous tube groups or microflute groups and is filled with a working substance; each of the micropore or microflute naturally forms a micro heat tube structure; the side of the heat radiation plate which is jointed with the photovoltaic cell panel is a heat absorbent surface, and the other sides of the heat radiation plates are partially or fully heat radiation surfaces. The heat sink has the advantages of simple structure, low thermal resistance and convenient installation.

Description

technical field [0001] The invention relates to a high-efficiency heat dissipation device for photovoltaic cells. Background technique [0002] The photoelectric conversion efficiency of general commercial photovoltaic cells (also known as solar cells) is 6% to 15%. During operation, most of the unused solar radiation energy is absorbed by the battery and converted into heat energy except for a part of it being reflected; if If the absorbed heat cannot be removed in time, the temperature of the battery will gradually rise, and the power generation efficiency will decrease (according to statistics, the output power will increase by 0.2% to 0.5% when the temperature of the battery module is lowered by 1K), and the photovoltaic battery will age rapidly if it works at high temperature for a long time. Shortened service life. [0003] Concentrating photovoltaic power generation technology uses low-cost reflectors or lenses to reduce the use of some expensive photovoltaic cells. ...

AI Technical Summary

Problems solved by technology

[0005] Natural or forced convection on the back of the photovoltaic cell takes away the heat to achieve the purpose of cooling. Although this method has a simple structure and good economy, the heat dissipation effect is poor.

[0006]A typical water cooling system consists of a heat exchanger, a water tank, several connecting valves and other components. Although this method has high heat exchange efficiency, it has complex structures and high costs. And it is prone to problems such as working fluid leakage and insulation

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