Metal Filter Housing with Plastic Nozzle for Crash-Optimized Assembly
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Solution Overview
Problem
Filter devices with metal housings, designed for crash stability, incur high production costs due to laborious soldering or welding of sockets for supply and disposal, which is complex and costly.
Innovation Solution
A filter device with a metallic filter housing featuring through-openings in the cover for plastic sockets, eliminating the need for additional metal seals and allowing for easier assembly and reduced costs, while maintaining crash resistance through metal construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal filter housing is used for crash stability, then crash resistance is improved, but production cost increases due to laborious soldering or welding of sockets
Solution Approach 1:
The filter housing is divided into a metallic housing body and separate socket components. The sockets are designed as separate plastic parts that can be inserted into the metal housing through simple insertion or clipping mechanisms, eliminating the need for soldering or welding while maintaining structural integrity and crash resistance.
Solution Approach 2:
The patent employs plastic socket components instead of metal sockets that would require expensive metal joining processes. The plastic sockets are designed to be easily replaceable and cost-effective, reducing production costs while the metallic housing body maintains the required crash resistance for the overall assembly.
2Reliability
If metal filter housing is used for crash stability, then crash resistance is improved, but assembly complexity increases due to additional sealing requirements
Solution Approach 1:
The patent uses plastic socket components with integrated sealing features that provide homogeneous sealing performance across all connection points. The plastic material allows for consistent sealing geometry and integration of seal elements, simplifying the assembly process compared to traditional metal-to-metal sealing requirements.
Solution Approach 2:
The plastic sockets are designed to be nested within or attached to the metallic filter housing structure. This nesting arrangement allows the sockets to be inserted into pre-formed openings in the metal housing, eliminating the need for separate sealing operations and reducing assembly complexity while maintaining the protective metal housing structure.
Data Source
Figure 1~3
AI summary
The invention relates to a filter device (1) comprising a filter housing (2) with a filter housing pot (4) and a filter housing cover (3), wherein: - the filter housing pot (4) is made of metal, - the filter housing cover (3) has a metallic component (12) in the form of a perforated mask with at least one through-opening (6, 6') and a plastic component (13) in the form of at least one plastic nozzle (5, 5') for supplying/discharging the filter device (1), which is sealed against the filter housing pot (4) and/or against the filter housing cover (3) and projects through the through-opening (6, 6') of the filter housing cover (3). This allows, in particular, a crash-optimized filter device (1) to be provided cost-effectively.