Solar Cell Receiver for Reflective Concentrator Modules
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Solution Overview
Problem
Reflective solar concentrator modules face challenges in efficiently positioning and connecting solar cells in series while minimizing shade on the reflective surface, leading to increased manufacturing costs and reduced efficiency due to the large area required for solar cell placement and electrical connections.
Innovation Solution
A solar cell receiver with a conductive main body extending along a directrix, featuring a side extension for supporting solar cells and longitudinal prolongations for linking multiple receivers in series, allowing for minimal shade and efficient electrical connection, while being manufactured through die-cutting and bending processes, and utilizing a dielectric for precise alignment and insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If solar cells are placed inside the transparent cover at the focal point, then the solar cells can receive concentrated light from the mirrors, but the solar cells cast shade on the reflective surface reducing module efficiency
Solution Approach 1:
The solar cell is positioned in a plane that is offset from the focal point by a distance equal to half the thickness of the transparent cover. This dimensional adjustment allows the solar cell to receive sufficient concentrated light while casting minimal shade on the reflective surface below, resolving the contradiction between light concentration and shade reduction
Solution Approach 2:
A receiver structure with conductive body and support extensions acts as an intermediary between the solar cell and the transparent cover. This intermediary structure positions the solar cell optimally while providing electrical connection pathways that extend along the directrix, enabling series connections without additional shading
2Power
If solar cells are electrically connected in series within the module, then the electrical output is increased, but the manufacturing cost increases due to complex connection requirements
Solution Approach 1:
The electrical connection structure merges the mechanical support function with the electrical connection function. The conductive body and support extensions serve dual purposes: positioning the solar cell and providing electrical pathways for series connections, thereby simplifying manufacturing
Solution Approach 2:
The receiver structure performs multiple functions simultaneously: it supports the solar cell mechanically, provides electrical connection pathways, and enables series connections between multiple solar cells. This multi-functionality reduces the need for separate components and simplifies the manufacturing process
3Power
If the area of the solar cell is increased to collect more energy, then the energy collection is improved, but the shade cast on the reflective surface increases reducing efficiency
Solution Approach 1:
By positioning the solar cell in a plane offset from the focal point and utilizing the thickness of the transparent cover, the design allows for larger solar cell areas that collect more energy while casting minimal shade on the reflective surface below
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the efficient arrangement of solar cells in series with minimal shade on the reflective surface, automating the manufacturing process, and ensuring precise electrical connections, thereby enhancing the efficiency and cost-effectiveness of solar concentrator modules.
Implementation Method 1
a second longitudinal prolongation (1.5) according to said directrix (X-X'), extending in the direction opposite to the first prolongation (1.1), wherein this second prolongation (1.5) has a dielectric (2) with a housing (2.1) suitable for receiving and housing at least part of the first prolongation (1.1) of another solar cell receiver
Implementation Method 2
a semiconductor configured for operating like a solar cell capable of generating a potential between the surface resting on the conductive support and the opposite free surface
Implementation Method 3
a plurality of concave mirrors with the focal point located in the transparent cover, at the point where the solar cell is placed
Data Source
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AI summary
The present invention relates to a solar cell receiver, formed as a support for said solar cell, suitable for reflective solar concentrator modules. Another object of the invention is the solar module comprising a plurality of these solar receivers. The reflective solar concentrator modules place the solar cell between the energy source, the Sun, and the reflective surface. The present invention is characterized by a special configuration of a solar cell receiver that allows linking a plurality of said solar cells in series, resolving the problems of shade and manufacturing difficulties existing in the state of the art. It further allows extending a plurality of solar cells according to a directrix allowing directional changes.