Battery Pack Cell Handling for Uniform Plasma Bonding
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Solution Overview
Problem
Existing battery pack assembly processes complicate plasma treatment of battery cells, requiring multiple rotations and varying distances, which affect productivity and adhesive force.
Innovation Solution
A battery pack assembly system using a robot arm to align and transfer battery cells for uniform plasma treatment, maintaining a consistent distance for effective plasma treatment and adhesive application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the battery pack is rotated 180 degrees to treat the lower surfaces of battery cells with plasma, then plasma treatment can be performed on the lower surfaces, but the process becomes complicated and productivity decreases
Solution Approach 1:
Instead of rotating the battery pack to access lower surfaces for plasma treatment, the invention inverts the approach by treating the lower surfaces in place through design modifications to the battery pack case or plasma treatment apparatus, eliminating the need for rotation and maintaining productivity while achieving uniform plasma treatment
2Manufacturing precision
If the distance between the plasma device and battery cells is not maintained uniformly, then the plasma treatment effect varies, but maintaining uniform distance is difficult during rotation
Solution Approach 1:
Rather than attempting to maintain uniform distance during rotation through complex control mechanisms, the invention eliminates rotation entirely and provides a stable, fixed-position plasma treatment setup where uniform distance is naturally maintained, simplifying the system while ensuring treatment consistency
3Manufacturing precision
If multiple operations (mounting, rotating, removing case, plasma treatment) are performed sequentially, then plasma treatment can be achieved, but the overall process complexity increases
Solution Approach 1:
The invention combines the plasma treatment operation with the existing battery pack assembly process by integrating the plasma treatment apparatus into the assembly line, allowing lower surface treatment to be performed as part of the normal assembly sequence without requiring separate mounting, rotation, and case removal operations
Solution Approach 2:
The design allows lower surfaces to be treated with plasma before final assembly steps are completed, enabling the treatment to be performed on accessible surfaces without requiring disassembly or rotation, thus simplifying the overall process while maintaining treatment quality
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 system ensures uniform plasma treatment and significantly enhances adhesive force between battery cells and heat sinks, improving productivity and adhesive strength.
Implementation Method 1
a plasma treater configured to treat the plurality of battery cells with plasma
Data Source
AI summary
Discussed is a battery pack assembly system including a battery cell supplier configured to supply a plurality of battery cells in an aligned state, a robot arm configured to move the plurality of battery cells, a plasma treater configured to treat the plurality of battery cells with plasma, and an assembler in which a battery pack case configured to receive the plurality of battery cells therein is disposed, whereby it is possible to obtain an excellent plasma effect for the plurality of battery cells and to easily assemble a battery pack, and a battery pack assembly method using the same.