Battery Module Press-Fit Monitoring for Thermal Interface Quality
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Solution Overview
Problem
Existing methods fail to reliably assess the quality of the connection between battery modules and cooling bases during assembly, leading to potential overheating due to inadequate heat dissipation, as gaps and wetting issues are not easily detectable post-assembly.
Innovation Solution
A method and control device that monitor and determine the quality status by analyzing predefinable force and distance variables during the assembly process, using characteristics such as gap height, wetting degree, and force curves to assess the quality without destructive testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery module is pressed with great force into the compartment filled with gap filler to achieve smallest gaps and greatest wetting, then the heat dissipation quality is improved, but the complexity of monitoring the quality status increases
Solution Approach 1:
The patent implements feedback by continuously monitoring the pressing force and distance during assembly, comparing these values against predefined quality criteria, and using this information to determine the quality status of the heat dissipation connection. This allows real-time quality assessment without increasing physical system complexity.
Solution Approach 2:
The patent replaces complex mechanical inspection methods with a control device that electronically monitors pressing parameters. Instead of using sophisticated mechanical measurement tools to detect gap size and wetting quality, the system uses force and distance measurements processed by a control algorithm to assess quality status.
2Device complexity
If conventional pressing methods are used without monitoring, then the device complexity is reduced, but the manufacturing precision of the assembly quality deteriorates
Solution Approach 1:
The pressing system performs self-verification by monitoring its own pressing force and distance parameters. The control device uses the inherent measurement capabilities of the pressing mechanism to automatically assess whether the assembly quality meets specifications, without requiring separate complex inspection equipment.
3Manufacturing precision
If the gap filler is applied in each single compartment manually, then the manufacturing precision of gap filler distribution is improved, but the productivity of the assembly process deteriorates
Solution Approach 1:
The patent monitors and controls the pressing force and distance parameters to compensate for variations in gap filler application quality. By adjusting and controlling the pressing parameters based on monitored values, the system ensures consistent assembly quality regardless of manual application variations, maintaining productivity while achieving reliable heat dissipation connections.
Data Source
AI summary
A method for determining a quality status of at least one component which is used during a setting process, in which a battery module is provided, which is place in a receptacle region of a battery housing having a housing base on a heat conducting compound located on the housing base and is pressed in the direction of the housing base so that the heat conducting compound located between the battery module and the housing base is at least partially distributed. The predefinable force (F) and the distance (z) covered by the battery module during the setting process in the first direction over the time (t) during the setting process are acquired as monitoring variables and the quality status is determined.