Square Photovoltaic Module with Corner Contact Pads
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current photovoltaic device installation methods are time-consuming, expensive, and prone to electrical accidents or premature malfunction due to complex and risky crimping connections between modules.
Innovation Solution
A photovoltaic module with square shape and contact pads at each corner, allowing for simplified electrical connections via cables that traverse the edges, enabling series or parallel connections without the need for crimping, using techniques like metallization on insulating layers or electrochemical deposition for conductor formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If crimping connections are used to connect modules in series via junction boxes, then electrical connections can be established, but the installation becomes time-consuming and expensive
Solution Approach 1:
The module is divided into four independent electrical poles (positive and negative terminals at each corner), allowing parallel connection operations instead of sequential crimping. Each corner module can be connected independently, enabling simultaneous installation work and significantly reducing installation time.
Solution Approach 2:
The electrical connection points are distributed across two-dimensional space (four corners of the module) rather than concentrated at a single location (back-side junction box). This spatial distribution enables parallel connection operations from multiple directions, transforming a sequential one-dimensional connection process into a parallel two-dimensional operation.
2Reliability
If crimping connections are used to connect modules, then electrical connections can be established, but there is a risk of electrical arcing and premature malfunction due to incorrect crimping
Solution Approach 1:
The connection system is designed to be self-aligning and self-securing through the corner pole configuration. The rigid structural framework automatically positions connection points, and the distributed four-pole system provides inherent stability that prevents misconnection, eliminating the need for skilled crimping operations and reducing human error.
Solution Approach 2:
The corner pole configuration provides built-in mechanical and electrical stability before connection is made. The rigid framework and predetermined pole positions create a cushioning effect that prevents incorrect connections and electrical arcing, as the structure itself guides proper alignment and maintains secure contact.
3Area of stationary object
If conventional junction box connections are used, then modules can be electrically connected, but the overall device size and cabling complexity increase
Solution Approach 1:
The connection functionality is extracted from the centralized junction box and distributed to the four corners of the module. This eliminates the need for back-side junction boxes and complex cabling routes, allowing modules to be connected directly at their perimeter poles with simplified wiring paths.
Solution Approach 2:
The mechanical support structure and electrical connection points are merged at the four corners of the module. The corner poles serve dual functions as both structural elements and electrical terminals, eliminating separate connection components and reducing overall device complexity and footprint.
Data Source
AI summary
Photovoltaic module (11) comprising a plurality of electrically connected photovoltaic cells (12), characterized in that it has a square shape and comprises at least two contact pads (17, 18) in each corner of the module so as to comprise at least four connectors (14, 15) on each edge (21; 22; 23; 24) of the module.