Welding Press Head with Dust Collection for Battery Cell Joining
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Solution Overview
Problem
Dust generated during the welding process of connector pieces and top covers in battery cell manufacturing affects welding quality and pollutes the battery cell, leading to defects and performance issues.
Innovation Solution
A welding positioning apparatus with a press head and dust collection chamber that allows for stable component positioning and dust removal, ensuring a clean welding environment by using a dust removal port to transfer collected dust outside the apparatus, while an elastic element and adjustable positioning features enhance stability and flexibility during the welding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If welding is performed without dust collection, then welding speed and productivity are maintained, but welding quality deteriorates due to dust contamination and battery cell is polluted
Solution Approach 1:
The press head internal cavity is segmented into two functional zones: a welding channel for laser beam transmission and a dust collection chamber for capturing dust particles. This segmentation allows simultaneous occurrence of welding and dust collection operations, resolving the contradiction between maintaining welding speed and ensuring welding quality through dust removal.
Solution Approach 2:
A dust collection chamber is introduced as an intermediary component within the press head, equipped with dust removal ports connected to external dust removal devices. This intermediary structure captures and removes dust generated during welding without interfering with the laser welding process, thereby improving welding quality while maintaining productivity.
2Manufacturing precision
If dust collection chamber is added to the press head, then welding quality improves through dust removal, but device complexity increases
Solution Approach 1:
The dust collection chamber is merged with the press head body, utilizing the existing press head structure as the housing for the dust collection system. The dust collection chamber shares the press head's structural framework, and the dust removal ports are integrated into the press head surface. This merging approach implements dust collection functionality without significantly increasing device complexity.
Solution Approach 2:
The press head is designed with multi-functionality: it simultaneously performs component positioning, pressing, laser beam transmission, and dust collection. The press head structure serves multiple purposes including holding the dust collection chamber, providing dust removal ports, and maintaining positioning accuracy, thereby reducing the need for separate dedicated dust collection equipment and lowering overall device complexity.
3Stability of the object's composition
If elastic element is used for pressing components, then positioning stability improves, but device complexity increases
Solution Approach 1:
The elastic element is configured to automatically generate pressing force between the first and second components when the press head is actuated. The elastic deformation and recovery of the element provide self-regulating pressing action, eliminating the need for complex external force control systems or additional actuators, thereby improving positioning stability while minimizing increases in device complexity.
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 apparatus ensures high-quality welding by maintaining a clean environment and preventing dust pollution within the battery cell, thereby improving the performance and reliability of the battery cell.
Implementation Method 1
the elastic element makes a connection between the first component and the second component more stable, and makes the welding process smoother. In addition, the press head is elastically pressed against the first component and the second component
Implementation Method 2
the welding channel provides a penetration path for a laser beam for laser welding, enabling the laser beam to smoothly reach the welding position of the first component and the second component to achieve smooth welding
Data Source
AI summary
The present application relates to a welding positioning apparatus, wherein a press head may be capable of pressing a first component against the second component, and dust generated during welding may be allowed to be collected in a dust collection chamber, and discharged to the outside of the welding positioning apparatus by an external dust extractor to keep the welding environment clean, thereby improving the welding quality.