Plug Connector Housing Assembly for Cable Seal Retention
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Solution Overview
Problem
Electrical plug connectors face challenges in maintaining high impermeability, especially under mechanical loads, which can lead to contamination and moisture ingress, while also requiring cost-effective and efficient production for large quantities, particularly in the automotive industry.
Innovation Solution
A housing assembly for plug connectors featuring a cable bushing with a cable sealing element and a housing securing part that increases rigidity and prevents detachment of the sealing element, using a connecting web for assembly and potential breaking points for separation, allowing for enhanced mechanical properties and ease of assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable sealing element is used in the cable bushing to ensure impermeability, then the sealing performance is improved, but the cable sealing element can detach from the inner wall under transverse loads, compromising impermeability
Solution Approach 1:
The cable sealing element is pre-fixed to the inner lateral surface of the housing part that forms the cable bushing, before final assembly. This preliminary fixation ensures that the sealing element remains securely attached even when transverse loads are applied to the cable, preventing detachment and maintaining impermeability throughout the assembly process and under operational conditions.
Solution Approach 2:
The invention introduces an intermediary fixation mechanism between the cable sealing element and the housing part. This intermediary structure provides additional attachment points or enhanced bonding that strengthens the connection, allowing the sealing element to resist transverse forces without detaching from the inner wall of the cable bushing.
2Reliability
If complex sealing structures are implemented to satisfy high impermeability requirements, then sealing performance is improved, but production complexity and costs increase
Solution Approach 1:
The cable sealing element is integrated directly into the cable bushing structure during the molding process. By merging the sealing element with the housing part in a single manufacturing step, the invention eliminates the need for separate sealing components and complex assembly operations, thereby maintaining high impermeability while simplifying production and reducing costs.
Solution Approach 2:
The housing part that forms the cable bushing is designed to serve multiple functions: it provides structural support, guides the cable, and incorporates the cable sealing element as an integral part. This multi-functionality reduces the number of separate components needed, simplifying both manufacturing and assembly while ensuring reliable sealing performance.
3Adaptability or versatility
If multiple housing parts are assembled to form the cable bushing, then design flexibility is improved, but assembly complexity increases
Solution Approach 1:
Multiple housing parts are merged into a single integrated component during the molding process. This integration maintains the design flexibility benefits of having multiple parts (such as modular design capabilities) while eliminating the assembly complexity of joining multiple components, as the cable bushing is produced as one piece with the cable sealing element already incorporated.
Data Source
AI summary
A housing assembly (2) for a plug connector (1), having a first housing part (5), to form a cable bushing (7) through which a cable (3) can be introduced into an interior (8) of the housing assembly, and a cable sealing element (12), in the cable bushing (7), for the cable (3). The housing assembly (2) further has a housing securing part (23) enclosing the first housing part (5) in the region of the cable bushing (7) in the region of the cable sealing element (12). The first housing part (5) and the housing securing part (23) are, in a preassembly state, connected in one piece to one another via a connecting web (33).