Rotating X-Ray Gluing Inspection for Battery Cell Bonding
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Solution Overview
Problem
Insufficient gluing between battery cells and their boxes leads to instability, as glue mobility can result in incomplete filling and reduced bonding strength, posing a risk of detachment during vibration.
Innovation Solution
A detection apparatus with a rotatable ray source and probe, connected via a C-arm, performs non-destructive scanning to assess gluing status by emitting rays through the battery, using a controller for image acquisition and analysis, and employing a gluing detection model to determine bonding quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed detection system is used, then the device structure is simple, but the detection coverage is insufficient and missed detections occur
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed detection system into a rotatable system. The ray source and probe are mounted on a rotatable support arm that can rotate around the battery, enabling comprehensive multi-angle detection coverage while maintaining a relatively simple overall device structure through centralized rotation mechanism
2Adaptability or versatility
If the ray source and probe rotate independently, then the rotation control is flexible, but the relative position control becomes complex
Solution Approach 1:
The patent merges the rotation control of the ray source and probe by coupling them on the same rotatable support arm structure. This ensures that both components rotate synchronously around the battery, maintaining their relative positions automatically without requiring complex independent control systems
Solution Approach 2:
The support arm structure serves multiple functions: it holds both the ray source and probe, provides the rotation mechanism for both components simultaneously, and maintains their spatial relationship. This multi-functional design simplifies the overall control system while preserving rotational flexibility
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
Ensures comprehensive and efficient detection of gluing status, reducing missed defects and improving battery reliability by identifying unqualified batteries, thus enhancing production yield and safety.
Implementation Method 1
a ray source, connected to the support arm; a probe, connected to the support arm, the probe facing an exiting port of the ray source
Data Source
AI summary
A detection apparatus and a battery production device are described. The detection apparatus includes a support frame, a ray source, a probe, and a carrying platform. The support frame includes a support arm, the ray source and the probe are both connected to the support arm, with the probe facing an exiting port of the ray source, and the carrying platform is located between the ray source and the probe, wherein the ray source and the probe are rotatable about a same rotation axis, and a rotation direction of the ray source is the same as that of the probe, such that during rotation, the probe remains facing the exiting port of the ray source and the carrying platform is located between the ray source and the probe.