Battery Cell Activation Tray Alignment Check Against Twisting
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Solution Overview
Problem
Existing battery cell activation trays are prone to mal-assembly and twisting during operation, leading to collisions with battery cells and resulting in damage such as dents, scratches, and cracks, which affect the quality and performance of the battery cells.
Innovation Solution
A check device and method using an external tray with a fence and an inner tray separated by a defined distance, incorporating an upper and lower pillar portion with a thickness difference, allowing for simple and effective detection of mal-assembly or twisting by inserting the device into the separation space and determining normal or abnormal conditions based on pillar engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the inner tray and external tray are assembled without strict alignment control, then the assembly process is simple and fast, but the trays may be incorrectly assembled or twisted during operation, causing battery cell damage
Solution Approach 1:
The patent applies preliminary action by pre-designing the separation distance between the inner tray and external tray, and pre-positioning the check device in the separation space before operation. This ensures that alignment is verified in advance, preventing incorrect assembly or twisting during operation while maintaining simple assembly procedures
Solution Approach 2:
The check device serves as an intermediary element between the inner tray and external tray. It is positioned in the separation space and acts as a reference standard to verify proper alignment and prevent twisting, enabling reliable detection without complicating the assembly process
2Measurement precision
If a complex detection system is used to detect mal-assembly and twisting, then detection precision is high, but device complexity increases
Solution Approach 1:
The check device applies self-service by being a simple, self-contained component that automatically indicates alignment status through its positioning in the separation space. The device itself serves as the measurement reference, eliminating the need for complex external detection systems, sensors, or automated inspection equipment
Solution Approach 2:
The check device is designed as a simple, inexpensive component that can be easily replaced if needed. Its straightforward structure with defined thickness and positioning features makes it cost-effective compared to complex detection systems, while still providing accurate detection of mal-assembly and twisting conditions
Data Source
AI summary
A check device and method for checking for misalignment or twisting during operation of a battery cell activation tray is provided where the cell activation tray includes an external tray having a fence and an inner tray for accommodating a battery cell fixed at a predetermined distance from the fence on a bottom of the external tray. The check device includes an upper pillar portion and a lower pillar portion extending from the upper pillar portion. The upper pillar portion has a thickness greater than a predetermined separation distance and the lower pillar portion has a thickness smaller than the predetermined separation distance. A first surface of the check device is planar and a second surface of the check device opposite the first surface has a step portion corresponding to a thickness difference between the thickness of the upper pillar portion and the thickness of the lower pillar portion.