Battery Cell Housing Entry Rail for Accurate Electrode Pressure Measurement
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Solution Overview
Problem
The assembly process of battery cells faces challenges in accurately measuring pressure on the electrode assembly during housing fitting to prevent damage, which affects processing efficiency and yield.
Innovation Solution
An assembly apparatus with a first guide rail mechanism, moving mechanism, and pressure measurement mechanism, featuring a gap between guide rail mechanisms, supports the weight of the guide rail and moving mechanism, allowing precise pressure measurement without interference, and simplifies the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pressure measurement mechanism is integrated with the guide rail mechanism and moving mechanism to support their weights, then the device complexity is reduced and assembly is simplified, but the measurement precision may be affected by the additional weight support function
Solution Approach 1:
The pressure measurement mechanism is integrated with the guide rail mechanism and moving mechanism, combining multiple functions (weight support and pressure measurement) into a single system. This reduces the number of separate components and simplifies the overall assembly structure, directly addressing the contradiction by merging functions to reduce complexity.
Solution Approach 2:
A gap is provided between the first guide rail mechanism and the adjacent second guide rail mechanism, isolating the pressure measurement mechanism from interference by adjacent stations. This segmentation approach ensures that the weight support function does not interfere with the measurement function, maintaining measurement precision while allowing integration.
2Measurement precision
If a gap is provided between the first guide rail mechanism and adjacent second guide rail mechanism, then the pressure measurement accuracy is improved by eliminating interference from adjacent stations, but the device complexity increases
Solution Approach 1:
The assembly apparatus is divided into separate stations (first guide rail mechanism and second guide rail mechanism) with a gap between them. This segmentation isolates the pressure measurement mechanism from interference by adjacent stations, ensuring accurate measurements while maintaining a relatively simple overall structure through modular design.
3Productivity
If the pressure measurement mechanism supports the weights of the guide rail mechanism and moving mechanism, then the number of separate components is reduced, but the reliability of pressure measurement may be compromised by the additional mechanical load
Solution Approach 1:
The pressure measurement mechanism is combined with the guide rail mechanism and moving mechanism, allowing it to support their weights. This integration reduces the number of separate components and simplifies the assembly process, improving productivity while maintaining measurement reliability through proper mechanical design.
Solution Approach 2:
The gap between the first guide rail mechanism and second guide rail mechanism isolates the pressure measurement mechanism from external interference, ensuring that the additional mechanical load from supporting weights does not compromise measurement reliability. The segmentation creates an independent measurement zone.
Data Source
AI summary
An assembly apparatus and an assembly method. The assembly apparatus is configured to assemble a battery cell. The assembly apparatus includes a first guide rail mechanism, where the first guide rail mechanism is located at a housing entry station, a gap is formed between the first guide rail mechanism and an adjacent second guide rail mechanism; a moving mechanism configured to convey an electrode assembly of the battery cell to the housing entry station; and a pressure measurement mechanism fixedly connected to the first guide rail mechanism, where the pressure measurement mechanism is configured to support weights of the first guide rail mechanism and the moving mechanism located on the first guide rail mechanism, and measure a pressure experienced by the electrode assembly during the process of placing the electrode assembly inside a housing.