Seal With Retaining Elements For Electrical Harness Routing
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Solution Overview
Problem
Existing solutions for connecting a controlled oil pump's electrical harness to vehicle wiring through an engine casing face challenges in maintaining a safe distance from rotating components while ensuring a seal, particularly in motor vehicles, and are constrained by the need to minimize harness length to avoid risks associated with the engine's architecture.
Innovation Solution
A device featuring a flat seal with retaining elements that securely hold the electrical harness in a receiving housing, allowing for removable retention and maintaining the seal integrity between casing parts, using a metal-plastic material for enhanced robustness and sealing efficiency, enabling the electrical connection from inside to outside the engine without compromising the seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electrical harness is left free without retention, then the installation is simpler, but the harness must be minimized in length to avoid rotating volumes, constraining the routing options
Solution Approach 1:
The seal acts as an intermediary element between the electrical harness and the casing structure. The retaining elements integrated into the seal provide a mediating mechanism that secures the harness without requiring separate retention systems, thus simplifying installation while enabling flexible routing through the sealed interface.
Solution Approach 2:
The retaining elements are merged with the seal structure, combining the sealing function and the retention function into a single integrated component. This eliminates the need for separate harness retention mechanisms, simplifying installation while providing secure attachment points that enable flexible routing options.
2Length of moving object
If the electrical harness is routed close to rotating volumes to minimize length, then the harness length is reduced, but the safety and integrity of the system is compromised
Solution Approach 1:
The retaining elements provide a third-dimensional attachment mechanism that allows the harness to be secured in space rather than being constrained to a two-dimensional surface. This enables the harness to maintain safe distances from rotating volumes while still being securely retained, prioritizing system integrity over minimal length.
Solution Approach 2:
The seal with integrated retaining elements provides a cost-effective solution that prioritizes safety over minimal harness length. The retaining elements secure the harness in a manner that ensures system integrity, accepting that the harness may be longer than absolutely necessary but guaranteeing safe operation.
3Adaptability or versatility
If a separate retention mechanism is added for the electrical harness, then the routing flexibility is improved, but the device complexity and number of components increases
Solution Approach 1:
The retaining elements are merged with the seal structure, combining the sealing function and the retention function into a single integrated component. This provides routing flexibility through the sealed interface without increasing the number of separate components, as the retention capability is built into the seal itself.
Solution Approach 2:
The seal serves multiple functions: it provides the sealing function to prevent fluid leakage and simultaneously provides retention functionality through its integrated retaining elements. This multi-functionality enables routing flexibility without requiring separate dedicated retention components, thus avoiding increased device complexity.
4Reliability
If the seal is designed solely for sealing function, then the sealing efficiency is maximized, but the ability to retain the electrical harness is lost
Solution Approach 1:
The retaining elements are merged with the seal structure, combining the sealing function and the retention function into a single integrated component. The retaining elements are positioned and configured to secure the electrical harness without interfering with the sealing surfaces, thus maintaining sealing efficiency while adding retention capability.
Solution Approach 2:
The seal is designed with local variations in structure: the retaining elements are positioned in specific locations that do not interfere with the sealing surfaces. This local differentiation allows the seal to provide both sealing and retention functions, with each area optimized for its specific purpose without compromising the other.
Data Source
Figure 1
AI summary
The invention relates to a device for fixing at least one electrical harness (11) on a housing, the electrical harness (11) being intended for the electrical connection through the housing between a functional element (12) located in an internal environment (18) delimited by the housing and electrical wiring arranged in an external environment (19) to the housing, the device comprising a sealing gasket (10), in particular in the form of a flat gasket, intended to ensure a seal for a fluid at the interface between the first and second parts (16, 17) of a housing when the first and second parts (16, 17) are fixed to each other, the sealing gasket (10) comprising, over all or part of its length, retaining elements (20) configured so as to be able to ensure the retention of all or part of the electrical harness (11) in a receiving housing (21) formed in at least one of said first and second parts (16, 17).