Sealing Mat Protective Skin for Cable Bushing Sealing
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Solution Overview
Problem
Existing sealing mats for multiple connections face challenges in sealing unused contact points without compromising the integrity of electrical connections, as conventional methods either lead to dirt and moisture ingress or damage to sealing elements when attempting to seal open positions.
Innovation Solution
A sealing mat with protective skins arranged in the cable bushings, allowing for controlled removal or piercing without electrical damage, ensuring airtight sealing and insulation across both occupied and unoccupied contact points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If partitions are used to seal unused contact points in the middle of the plug passage, then sealing of open cable bushings is improved, but parts of the ripped dividing wall may get into the contact path and interfere with electrical connection or prevent sealing
Solution Approach 1:
The harmful parts (ripped dividing wall) are extracted from the system by positioning the protective skin at the end area of the cable bushing, away from the contact path. This ensures that when the protective skin is pierced, debris does not contaminate the electrical connection area.
Solution Approach 2:
The protective skin acts as an intermediary element that provides sealing functionality without the harmful side effects of central partitions. It seals the cable bushing from the outside while being positioned away from the contact path, thus mediating between sealing requirements and electrical connection integrity.
2Reliability
If the dividing wall is arranged centrally in the plug passage, then sealing of the sealing mat is improved, but there is a risk that sealing lamellae located in the spatial vicinity will be damaged when the dividing wall is pierced
Solution Approach 1:
The protective skin is extracted from the central position and relocated to the end area of the cable bushing. This spatial separation ensures that when the protective skin is pierced, the sealing lamellae in the central area remain undamaged and functional.
Solution Approach 2:
The cable bushing is segmented into different functional zones: the end area contains the protective skin for external sealing, while the central area contains the sealing lamellae for internal sealing. This segmentation allows each component to perform its function without interfering with the other.
3Object-affected harmful factors
If subsequent sealing measures are applied to seal open positions of the sealing mat, then protection against dirt and moisture is improved, but costs, labor and materials increase
Solution Approach 1:
The protective skin serves multiple functions: it seals the cable bushing from dirt and moisture, and it can be selectively pierced when needed. This multi-functionality eliminates the need for separate subsequent sealing measures, reducing complexity while maintaining protection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents particle ingress, maintains electrical insulation, and reduces costs and labor by eliminating the need for additional sealing measures, while ensuring reliable sealing and contact functionality.
Implementation Method 1
A protective skin is arranged on the leadthrough. The protective skin is arranged in the first end area or in the second end area of the line bushing and, in an intact state, seals the first outside from the second outside.
Data Source
Figure 1A~2
Figure 3~4B
Figure 5A~5D
AI summary
The mat (1) has a cable bushing (13) connecting outer sides (9, 11) of the mat with each other. End regions of the cable bushing border on the outer sides of the mat. A protective membrane (19) e.g. partition wall or film, is arranged in one of the end regions and integrated with the mat. The membrane seals the outer sides of the mat from each other in intact state. The membrane and the mat are made of elastomer. One of the outer sides of the mat is designed as contact plug-in side, and another outer side is designed as contact plug far side and contact receiver facing side. An independent claim is also included for a method for manufacturing a sealing mat.