Solar Cell Wire Pressing Assembly for Faster Tabbing
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Solution Overview
Problem
Conventional solar cell tabbing processes are inefficient due to the need for multiple operations of picking up and seating solar cells and wire jigs, leading to prolonged processing times.
Innovation Solution
A pressing device with first and second pressing members, each comprising pressing pins and bodies, is used to securely fix wires to solar cells, utilizing ceramic materials and elastic members for stable fixation, and a transfer line to streamline the tabbing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cell-jig transfer devices perform multiple operations of picking up and seating solar cells and wire jigs, then the seating process can be completed, but the processing time is prolonged and productivity is reduced
Solution Approach 1:
The patent merges the solar cell seating operation and wire jig seating operation into a single simultaneous action. The transfer device picks up both the solar cell and wire jig together and seats them on the wire in one operation, eliminating the need for separate picking and seating steps for each component. This combining of operations directly resolves the technical contradiction by maintaining complete seating functionality while dramatically reducing processing time and improving productivity.
2Reliability
If pressing members are used to fix wires to solar cells, then wire fixation stability is improved, but device complexity increases
Solution Approach 1:
The pressing device is segmented into multiple independent pressing members, each responsible for pressing a specific portion of the wire (first portion by first pressing member, second portion by second pressing member). This segmentation allows each pressing member to be a simple, focused component rather than one complex device, while collectively achieving stable wire fixation. The segmented approach resolves the contradiction by distributing the fixation function across simple modular units.
Solution Approach 2:
The pressing members act as intermediary elements between the wire and the solar cell, providing the necessary mechanical pressure for stable fixation without requiring direct complex bonding mechanisms. These intermediary pressing members simplify the overall device structure by using straightforward mechanical pressure application rather than complex bonding or clamping systems.
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
The solution enables efficient and stable fixation of wires to solar cells, reducing processing time and improving the overall efficiency of solar cell module assembly.
Implementation Method 1
an elastic member configured to elastically support the first pressing pin with respect to the first pressing body
Data Source
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AI summary
The present disclosure relates to a pressing device and a tabbing apparatus including the same, and the pressing device includes a first pressing member configured to press a first portion of a wire seated on a first surface of a solar cell and a second pressing member spaced apart from the first pressing member and configured to press a second portion of the wire seated on a second surface opposite to the first surface.