Solar Cell Tabbing Head Control to Prevent Over-Soldering
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Solution Overview
Problem
Conventional tabbing devices for manufacturing solar cell modules face the issue of over-soldering when the device stops, particularly at the rear surface of the cells, which is the most vulnerable point.
Innovation Solution
An over-soldering prevented tabbing device that includes a conveyor system, a soldering head with a built-in heat source, and a controller. When the device stops, the controller moves the heat source from the target cell to a standby cell and back to the original position when resumed, preventing over-soldering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the heat source remains positioned over the target cell during device stops, then the soldering process can resume immediately without repositioning, but over-soldering occurs at the rear surface of the cell
Solution Approach 1:
The heat source is made dynamically movable along the conveyor direction through a driving mechanism. During device stops, the heat source automatically relocates to a predetermined position (such as over a standby cell or away from any cell) to avoid over-soldering, and returns to the original position upon resumption, enabling both harm prevention and quick resume
Solution Approach 2:
A controller acts as an intermediary between the device stop signal and the heat source positioning system. The controller receives stop signals, activates the driving mechanism to reposition the heat source, and coordinates the return movement upon resumption, thereby mediating between productivity requirements and over-soldering prevention
2Object-affected harmful factors
If the heat source is moved to a standby cell position during stops, then over-soldering is prevented, but additional repositioning time is required upon resumption
Solution Approach 1:
The heat source is repositioned to a predetermined standby cell position during stops rather than remaining idle. This preliminary positioning ensures that when the device resumes, the heat source is already in the correct position for continued soldering, minimizing repositioning time and preventing over-soldering simultaneously
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 solution effectively prevents over-soldering by relocating the heat source during device stops and returning it to the original position upon resumption, thereby maintaining the integrity of the solar cell modules.
Implementation Method 1
a soldering head having a built-in heat source that provides heat for soldering the flux coated on the moved solar cell
Data Source
AI summary
An over-soldering prevented tabbing device for manufacturing solar cell modules is disclosed in which the over-soldering is prevented from occurring in the tabbing device for performing the soldering process in manufacturing the solar cell modules. The over-soldering prevented tabbing device according to an embodiment of the present disclosure includes a solar cell module cell that is transported on a conveyor by a unit of cell; a soldering head installed above the solar cell module cell and having a built-in heat source that provides heat to solder the flux coated on the transported solar cell module cell; a driver reciprocating the soldering head in a direction in which the conveyor moves; and a controller controlling the driver.