Curved-top total reflection type twice concentration and illumination balancing integration device

Abstract

The invention discloses a curved-top total reflection type twice concentration and illumination balancing integration device, which is in a V-shaped prism trapezoid structure made of solid glass. In the invention, a curved-top surface is plated with an anti-reflection film, a curved-top bottom surface is the incidence surface of a light beam, a lower bottom surface is the emitting surface of the light beam, and the area of the curved-top bottom surface is larger than the area of the lower bottom surface. The curved-top total reflection type twice concentration and illumination balancing integration device works in the following steps: the light beam is changed into a convergent light beam by passing through the once condenser of a spotlight photovoltaic module group, the convergent light beam with a large caliber enters the incidence surface of the curved-top total reflection type twice concentration and illumination balancing integration device, after the refraction of the incidence surface and multiple total reflections of sidewalls, the convergent light beam is then refracted from the emitting surface to the solar cell with a small caliber, thereby achieving the purpose of twice concentration, and the multiple total reflections from the sidewalls can promote the light spots with uneven intensity distribution to be more even, thereby realizing the homogenization of the solar cell photic surface light spot.

Description

technical field [0001] The present invention relates to a total reflection secondary concentrating and homogenizing device, in particular to a total reflection secondary concentrating and homogenizing device applied to a high-power concentrating photovoltaic module to realize The light beam is concentrated and homogenized twice. Background technique [0002] With the depletion of traditional energy sources and the aggravation of environmental pollution, solar energy has become a new energy source with great development potential. In the field of solar energy utilization, solar photovoltaic power generation technology is the most promising way of solar energy utilization. Solar photovoltaic power generation technology has become one of the important research topics in the world, and the focus of research is how to improve the photoelectric conversion efficiency of solar cells. , and how to reduce the cost of photovoltaic power generation. At present, the most widely used so...

AI Technical Summary

Problems solved by technology

However, the spot formed by the high-power concentration of the Fresnel lens will generate hot spots due to uneven concentration, and it is easy to damage the solar cell due to excessive temperature, which will greatly reduce the photoelectric conversion efficiency of the solar cell and reduce the service life of the battery. , so it is urgent to improve the structure of the concentrator to meet the requirements of the use

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