Segmented Cover Housing for Automotive Control Units
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Solution Overview
Problem
Existing housings for electrical control units in automotive engineering require improved durability, reliability, and imperviousness while being lightweight and cost-effective, with a need for a design that can withstand extreme temperature changes and mechanical loads.
Innovation Solution
A housing design featuring a main housing part with a covering device comprising a first cover part that substantially covers the opening and a separate second cover part with clearances, which is fastened to the main housing part to provide mechanical stability and sealing, allowing for weight savings and easy production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single solid cover part is used to close the housing opening, then sealing reliability is improved, but weight and material usage increase
Solution Approach 1:
The cover part is divided into a first cover part and a second cover part that are separate from each other. The first cover part substantially covers the opening while the second cover part is separate and has clearances, allowing weight reduction while maintaining sealing functionality through the first cover part.
Solution Approach 2:
The first cover part provides substantial coverage for sealing where needed, while the second cover part has clearances in the region of the opening where full coverage is not required. This local differentiation optimizes the balance between sealing reliability and weight reduction.
2Weight of moving object
If a second cover part with clearances is introduced, then weight is reduced, but structural complexity increases
Solution Approach 1:
The cover is segmented into two separate parts that can be manufactured independently and assembled separately, simplifying manufacturing processes while reducing weight through the clearance design of the second cover part.
Solution Approach 2:
The first cover part serves multiple functions: substantial coverage for sealing and structural support. The second cover part provides additional support while having clearances for weight reduction. Together they create a multi-functional cover system that balances complexity and weight.
3Reliability
If the first cover part projects beyond the opening, then sealing capability is improved, but material usage increases
Solution Approach 1:
The cover is divided into two parts where the first cover part projects beyond the opening to provide sealing contact, while the second cover part has clearances and does not require full projection. This segmentation allows sealing functionality with reduced total material usage.
Solution Approach 2:
The first cover part has extended projection locally at the periphery where sealing is required, while the second cover part has clearances where material can be removed. This local quality differentiation achieves sealing with optimized material usage.
Data Source
AI summary
A housing includes a main housing part with an opening as well as a covering device for the opening. The covering device has a first cover part, which at least substantially covers the opening and a second cover part which is separate from the first cover part, bears at least in certain regions against the first cover part and has at least one clearance or aperture in the region of the opening. The second cover part is fastened or supported at the main housing part, in particular in the region of a periphery of the main housing part that extends or runs around the opening. The weight of the covering device is therefore low and yet a high level of stability and sealing in relation to fluids is provided.