Battery Pack Terminal Post Addressing Before Busbar Welding
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Solution Overview
Problem
In battery production, misalignment of busbar assemblies with terminal posts leads to low addressing efficiency and poor positioning accuracy, affecting welding quality due to the inability to determine camera movement distances accurately.
Innovation Solution
A pre-welding addressing method and system that utilizes product information to obtain initial addressing coordinates of terminal posts, determining positioning deviation values, and calculating target coordinates using a three-axis addressing mechanism and camera module to ensure accurate image capture, applicable to various battery packs without hardware/software changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the camera moves to capture terminal posts without predetermined coordinates, then the addressing system can be simple, but the addressing efficiency decreases and positioning accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by obtaining initial addressing coordinates of terminal posts from product information before the camera actually captures images. This allows the system to pre-calculate camera movement distances and positions, ensuring that each camera movement will successfully capture terminal posts, thereby improving addressing efficiency while maintaining positioning accuracy.
2Measurement precision
If the camera movement distance is not predetermined, then the device complexity is low, but the addressing accuracy and efficiency worsen
Solution Approach 1:
The patent introduces an intermediary element - the initial addressing coordinates obtained from product information - which serves as a mediator between the simple camera movement mechanism and the required addressing accuracy. These coordinates enable precise calculation of camera movement distances without complicating the physical device structure.
3Measurement precision
If the addressing system is customized for different battery packs, then the positioning accuracy improves, but the adaptability and switching speed between different battery pack blueprints deteriorates
Solution Approach 1:
The patent applies universality by using a unified addressing methodology that works across different battery pack types. The system obtains initial addressing coordinates from product information specific to each battery pack blueprint, allowing the same camera and addressing mechanism to accurately address terminal posts for various battery pack configurations without requiring hardware modifications or complex reconfiguration.
Data Source
AI summary
Embodiments of the present disclosure provide a pre-welding addressing method and system. The pre-welding addressing method includes: obtaining product information of a to-be-addressed battery pack, in response to the battery pack getting in position, where the battery pack includes a plurality of cells, and the product information includes initial addressing coordinates of a plurality of cell terminal posts; obtaining positioning deviation values of the plurality of cell terminal posts based respectively on the initial addressing coordinates of the plurality of cell terminal posts, where the positioning deviation values of the cell terminal posts are determined based on addressing images of the cell terminal posts that are acquired by an addressing camera module; and determining target addressing coordinates of the plurality of cell terminal posts based respectively on the initial addressing coordinates of the plurality of cell terminal posts and the positioning deviation values of the plurality of cell terminal posts.