Solar Cell Module Antenna Integration for Vehicle Roof
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Solution Overview
Problem
Conventional solar cell modules for vehicle roofs require multiple parts, including resin and metal panels, which increases weight and complexity, and can lead to electromagnetic interference between solar cells and antennas.
Innovation Solution
A solar cell module design where the antenna installation area is positioned at the vehicle front or rear side of the solar cell installation area, with a resin front surface layer and a laminated sealing and rear surface layer, allowing the entire roof to be formed by a solar cell module and preventing electromagnetic interference by maintaining a predetermined distance between the solar cell and antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna installation area is formed from a metal panel, then electromagnetic interference between the solar cell and antenna is prevented, but the number of parts increases and weight increases
Solution Approach 1:
The patent merges the antenna installation area with the solar cell module by providing an antenna installation area on the rear surface layer of the solar cell module. This allows the entire roof to be formed by a single solar cell module rather than requiring separate metal panels, thereby reducing the number of parts while maintaining electromagnetic interference prevention through the inherent shielding effect of the solar cell structure
Solution Approach 2:
The solar cell module is designed to serve multiple functions: it generates electricity through solar cells, provides structural coverage for the roof, and creates an integrated antenna installation area. The rear surface layer serves both as a protective covering and as a substrate for antenna installation, eliminating the need for separate metal panels
2Reliability
If the antenna installation area is formed from a metal panel, then electromagnetic interference is prevented, but the vehicle body weight increases
Solution Approach 1:
The antenna installation area is merged into the solar cell module structure, eliminating the need for separate heavy metal panels. The solar cell module itself provides the necessary electromagnetic shielding and structural support, thereby reducing overall vehicle body weight while maintaining interference prevention
Solution Approach 2:
The patent changes the material parameter from heavy metal panels to lighter solar cell module materials (primarily resin and glass). The solar cell module achieves electromagnetic interference prevention through its layered structure and grounding design rather than relying on heavy metal shielding
3Reliability
If the antenna installation area is positioned at the vehicle front or rear side of the solar cell installation area, then electromagnetic interference is prevented, but the design complexity increases
Solution Approach 1:
The solar cell module is segmented into distinct functional areas: a solar cell installation area and an antenna installation area. The antenna installation area is positioned at the vehicle front or rear side of the solar cell installation area, creating spatial separation that prevents electromagnetic interference while maintaining a relatively simple integrated design
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 design reduces the number of parts and weight of the vehicle roof while preventing electromagnetic interference, allowing the entire roof to be formed by a solar cell module and ensuring effective separation of the antenna and solar cell.
Implementation Method 1
a solar cell module that is formed by sealing a plurality of solar cells with a sealing material
Data Source
AI summary
A solar cell module includes: a sealing layer in which power generating elements are sealed; a front surface layer formed from resin and joined to a light-receiving surface side of the power generating elements in the sealing layer; and a rear surface layer joined to an opposite side from the light-receiving surface side of the power generating elements in the sealing layer, wherein the front surface layer has a solar cell installation area that forms a portion of a solar cell, and an antenna installation area that extends at a vehicle front side or a vehicle rear side of the solar cell installation area.