Battery Housing Lower Part Frame for Gas-Tight EV Pack Assembly
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Solution Overview
Problem
Existing energy storage device housings face challenges in efficient production while meeting high quality and gas-tightness requirements, particularly in large-scale applications like electrified motor vehicles.
Innovation Solution
A housing lower part design featuring a trough-like element with lateral wall elements, sill elements, and transverse elements that form a circumferential frame, minimizing joining points and using welding and sealing materials to ensure gas-tightness and crash safety, allowing for efficient assembly and reduced production complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple separate components are used to construct the housing lower part, then ease of manufacture is improved, but the number of joining points increases reducing gas-tightness
Solution Approach 1:
The patent merges multiple separate components (trough-like element, sill elements, transverse elements) into a largely integrated housing lower part structure. The sill elements are integrally formed with the trough-like element, and the transverse elements are joined to form a continuous circumferential frame, thereby reducing the number of joining points while maintaining ease of manufacture through modular design of the integrated structure.
2Reliability
If a fully integrated housing lower part is used, then gas-tightness is improved, but device complexity increases
Solution Approach 1:
The housing lower part is segmented into distinct functional elements (trough-like element with bottom and wall elements, sill elements, transverse elements) that can be manufactured separately and then joined. This segmentation allows each component to be optimized independently while maintaining overall integration, thereby reducing device complexity through standardized interfaces and modular assembly of the integrated structure.
Data Source
AI summary
Please replace the original Abstract with the following new Abstract: A housing lower part of an energy storage device housing includes a tub-like element, which has lateral wall elements which extend along a longitudinal axis. Sill elements are arranged on the outer side of the wall elements and each projects beyond the wall elements along the longitudinal axis by way of a longitudinal section. Transverse elements are arranged on the end side of the tub-like element and extend transversely to the longitudinal axis. The sill elements are fastened to the end side of the transverse elements by way of the longitudinal sections.