Slotted Sealing Sleeve Feedthrough for Leak-Free Cable Assembly
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Solution Overview
Problem
Existing sealing solutions for elongated objects, such as cables and pipes, are complex and inefficient, often leading to misalignment and unwanted leaks due to the need to remove multiple layers from half-shells to achieve the correct diameter, and lack effective strain relief during assembly.
Innovation Solution
A divisible frame with slotted, concentric cylindrical material layers and a positive locking mechanism allows for easy insertion and secure fit of sealing sleeves, ensuring a tight seal and strain relief by allowing single-sided removal and compression of layers, with optional thin layers for adherence and a core for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If half-split sealing grommets with multiple cylindrical layers are used, then the diameter can be adapted to different elongated objects, but the assembly becomes complex and time-consuming due to the need to remove multiple layers from two separate halves and ensure precise alignment
Solution Approach 1:
The sealing grommet is divided into multiple concentric cylindrical layers that can be selectively removed. This segmentation allows the diameter of the through-opening to be adapted to different elongated objects by removing the appropriate number of layers, while the single-piece construction maintains simplicity.
Solution Approach 2:
The patent merges the two half-grommet design into a single integrated sealing grommet with a through-opening. This eliminates the need to assemble and align two separate halves, significantly reducing assembly complexity while maintaining the ability to adapt the diameter through layer removal.
2Adaptability or versatility
If half-split sealing grommets are used, then the diameter can be adjusted by removing material layers, but misalignment and leaks occur due to improper reassembly of the halves
Solution Approach 1:
The sealing grommet consists of multiple concentric cylindrical layers that can be independently removed to adjust the diameter. This segmentation provides precise diameter control while the single-piece construction prevents misalignment issues.
Solution Approach 2:
Instead of assembling two halves that must be precisely aligned, the invention uses a single integrated grommet structure. The diameter adjustment is achieved by removing layers from the complete structure rather than trying to match halves, inverting the traditional approach and eliminating alignment problems.
3Device complexity
If a single-piece frame is used, then the structure is simple, but the sealing sleeves cannot be easily inserted and strain relief is insufficient
Solution Approach 1:
The frame is divided into two separable halves that can be positioned on opposite sides of the elongated object. This segmentation allows sealing sleeves to be easily inserted through the through-openings and provides effective strain relief by distributing forces across both frame halves.
4Reliability
If sealing grommets are tightly secured in the frame, then strain relief is improved, but the assembly and disassembly becomes difficult
Solution Approach 1:
The frame is segmented into two halves that can be easily positioned and secured. The sealing grommets are designed to be inserted through the through-openings and held in place by the frame structure, providing strain relief while maintaining ease of assembly and disassembly.
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 design provides a simple, efficient, and reliable seal with improved tightness and strain relief, preventing misalignment and leaks, and simplifies handling by ensuring consistent diameter adjustment without the need for complex layer repositioning.
Implementation Method 1
the elastic sealing sleeves can also form a frictional fit against adjacent sealing sleeves and/or frame parts
Implementation Method 2
the elastic sealing sleeves can also form a frictional fit against adjacent sealing sleeves and/or frame parts
Data Source
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AI summary
The invention relates to a feedthrough for an elongated object, comprising a frame and at least one sealing sleeve, wherein an outer contour of the sealing sleeve has elements for a positive fit to the frame, wherein the sealing sleeve has at least one through-opening for receiving the elongated object or a blanking plug, and wherein several cylindrical material layers are arranged concentrically to one another in the through-opening. The feedthrough according to the invention is characterized in that the frame is divisible, and that the sealing sleeve and the cylindrical material layers are slotted, such that a slot connects each of the through-openings to an adjacent through-opening or to the outer contour.