Battery Pack Wire Harness Shielding With Mica Sheets
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Solution Overview
Problem
Existing battery pack designs fail to adequately protect wire harnesses from the thermal influence of discharged gas, which can lead to short circuits and reduced energy density.
Innovation Solution
A battery pack design incorporating lower and upper mica sheets to cover the wire harness, redirecting discharged gas away from the harness and minimizing thermal exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wire harness is arranged in the path of discharged gas to enable voltage/temperature detection, then the detection function is achieved, but the wire harness is exposed to thermal influence which may cause short circuits
Solution Approach 1:
The patent introduces mica sheets as intermediary protective layers between the discharged gas and the wire harness. The lower mica sheet is disposed between the battery module and the wire harness, while the upper mica sheet covers the wire harness from above, creating a thermal barrier that protects the wire harness from direct exposure to hot discharged gas
Solution Approach 2:
The patent uses thin mica sheets to wrap and cover the wire harness. These flexible thin film structures conform to the wire harness shape and provide thermal protection without adding significant bulk, allowing the wire harness to maintain its detection function while being shielded from thermal influence
2Object-affected harmful factors
If additional protective structures are added to shield the wire harness from discharged gas, then thermal protection is improved, but the device complexity increases
Solution Approach 1:
The patent employs thin mica sheets that can be easily disposed around and over the wire harness. These flexible protective films provide effective thermal shielding while maintaining a simple structure that integrates seamlessly with the existing battery module configuration
Solution Approach 2:
The mica sheets used as protective layers are relatively simple, cost-effective components that provide adequate thermal protection for the operational lifetime of the battery pack. Their simplicity and ease of disposal or replacement contribute to reducing overall device complexity
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
The mica sheets effectively shield the wire harness from thermal influence, reducing the risk of short circuits and enhancing energy density by allowing for a more compact design.
Implementation Method 1
an inside of the battery pack of the wire harness is covered with at least one of the upper mica sheet and the lower mica sheet
Data Source
AI summary
Provided is a battery pack for further suppressing thermal influence of discharged gas on the wire harness. The battery pack according to the present disclosure is provided with a battery module having a smoke exhaust structure, and includes a lower mica sheet mounted on an upper surface of the battery module, a wire harness mounted on an upper surface of the lower mica sheet, and an upper mica sheet mounted on an upper surface of the wire harness, in which an inside of the battery pack of the wire harness is covered with at least one of the upper mica sheet and the lower mica sheet.