Solar Cell Arrangement With Transparent Rear Electrode
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Solution Overview
Problem
Existing portable devices, such as mobile phones, face limitations in integrating solar cells and induction coils on the same surface, which restricts simultaneous use of solar power and electromagnetic induction charging due to design constraints and efficiency issues.
Innovation Solution
The integration of a solar cell arrangement with a transparent rear face electrode and an induction coil arrangement beneath it, connected via a power management chip, allowing for simultaneous charging and power provision using solar energy and electromagnetic induction without obstructing electromagnetic fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a solar cell arrangement with a metallic substrate is used, then the solar cell can be structurally supported, but the metallic substrate blocks electromagnetic fields and prevents effective induction coil operation
Solution Approach 1:
The patent removes the metallic substrate from the solar cell arrangement, extracting the harmful electromagnetic field blocking property while retaining the solar cell's structural integrity through alternative non-metallic support structures and encapsulation materials
Solution Approach 2:
The patent changes the material composition parameter of the solar cell substrate from metallic to non-metallic materials, fundamentally altering the electromagnetic properties to allow field penetration while maintaining mechanical support functions
2Area of stationary object
If solar cells and induction coils are integrated on the same surface, then space utilization is improved, but the metallic components interfere with each other's electromagnetic functionality
Solution Approach 1:
The patent extracts the metallic substrate that causes electromagnetic interference, allowing both solar cells and induction coils to coexist on the same surface without mutual interference, thus maintaining both space utilization and electromagnetic functionality
Solution Approach 2:
The patent introduces non-metallic encapsulation materials and structural layers as intermediaries between the solar cells and induction coils, enabling both components to function simultaneously on the same surface without direct electromagnetic interference
3Reliability
If a conventional solar cell with opaque rear contact is used, then electrical connection is achieved, but the rear contact blocks electromagnetic fields from reaching the induction coil
Solution Approach 1:
The patent removes the opaque metallic rear contact layer that blocks electromagnetic fields, replacing it with transparent or electromagnetic-transparent conductive materials that allow field penetration while maintaining electrical connectivity
Solution Approach 2:
The patent employs composite material structures for the rear contact, combining transparent conductive oxides or other electromagnetic-transparent conductive materials with supporting layers to achieve both electrical connection and electromagnetic field transparency
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
This configuration enables greater design flexibility, allowing for larger solar cell areas and induction coils, enabling simultaneous solar and electromagnetic induction power utilization without blocking electromagnetic fields, thus enhancing power management and device design.
Implementation Method 1
The solar cell arrangement (15) includes first and second connecting leads (18). The uppermost surface of the solar cell arrangement (15) constitutes the part of the solar cell arrangement (15) that is visible in Figures 2 and 3.
Implementation Method 2
Beneath the solar cell arrangement (15) is arranged an induction coil arrangement (19). The induction coil arrangement comprises one or more coiled conductors (not visible in the figure).
Data Source
Figure 1~3
Figure 4~5
Figure 6
AI summary
Apparatus comprises a solar cell arrangement comprising one or more solar cells arranged in a planar structure, the solar cell arrangement having a front surface and a rear surface, the solar cell arrangement being operable to produce electrical power in response to the incidence of light on the front surface. It includes an induction loop arrangement comprising one or more induction loops arranged in a planar structure. The induction loop arrangement is configured to produce electrical power in response to the presence of an electric or electromagnetic field extending through the plane of the induction loop arrangement, and/or is configured to generate and radiate an electric or an electromagnetic field through the plane of induction loop arrangement in response to being energised with alternating current electrical power. Each solar cell in the arrangement is partly or substantially transparent to electromagnetic fields, and the induction loop arrangement is supported in juxtaposition with the rear surface of the solar cell.