Adaptive Cable Seal Module with Layered Rubber Construction
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Solution Overview
Problem
Existing cable seal and transition systems require adaptation of frames and compression units for cables with non-circular cross-sections, lacking a universal solution for different shapes like flat, rectangular, elliptic, and circular cables.
Innovation Solution
The module consists of two halves with an outer and inner part made of different hardness rubber, where the inner part has removable layers and a protruding design to accommodate cables of varying sizes, allowing for adjustable compression without altering the frame or compression unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If modules are made of uniform hard material, then structural strength is improved, but adaptability to different cable cross-sections deteriorates
Solution Approach 1:
The module employs a layered structure where the outer layer is made of harder material for structural strength, while the inner layer uses softer, more compliant material that can deform to accommodate different cable cross-sections. This local differentiation of material properties allows the module to simultaneously achieve both structural integrity and adaptability to various cable shapes and sizes.
Solution Approach 2:
The module utilizes composite construction with multiple material layers - typically an outer rigid layer (such as rubber or plastic) combined with an inner softer layer. This composite approach combines the advantages of both materials: the outer layer provides structural support and protection, while the inner layer provides conformability and sealing contact with cables of different geometries.
2Reliability
If frames and compression units are customized for each cable shape, then sealing performance is improved, but device complexity deteriorates
Solution Approach 1:
The module design achieves universality by creating a single standardized frame and compression unit structure that can accommodate multiple cable types (flat, round, rectangular, elliptic) through the interchangeable use of differently configured modules. Each module is designed with standardized mounting interfaces and compression characteristics, allowing the same frame and compression unit to work with various cable geometries without requiring custom components for each cable type.
Solution Approach 2:
The sealing system is segmented into standardized frames, compression units, and interchangeable modules. This segmentation allows the frame and compression unit to remain universal while the modules can be configured or selected based on specific cable requirements, reducing overall system complexity while maintaining sealing performance across different applications.
3Ease of manufacture
If modules use single-material construction, then manufacturing simplicity is improved, but tolerance to cable dimension variations deteriorates
Solution Approach 1:
The module employs composite material construction with an outer layer of harder material and an inner layer of softer material with different durometer values. This multi-material approach allows the module to accommodate cable dimension variations more effectively - the softer inner layer deforms to conform to cables of varying sizes, while the outer layer maintains structural integrity. Although manufacturing is slightly more complex than single-material construction, it remains practical and provides significantly improved tolerance to dimensional variations.
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
Enables flexible sealing of cables with different cross-sections by allowing the module to adapt to various sizes and shapes, providing higher tolerance and effective compression, suitable for use in diverse industrial environments.
Implementation Method 1
The compression unit is placed inside the frame in such a way that when the compression unit is expanded the modules will be compressed around the cables
Implementation Method 2
The combination of different material characteristics enables higher tolerance in view of cable dimensions and the softer material of the inner part gives higher compression in the area of said softer material
Data Source
Figure 1~5
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Figure 9~14
AI summary
The present invention concerns a module (1) of a seal or transition for cables or wires, which module (1) is to be placed inside a frame (10) together with one or more compression units (12). The module (1) comprises two module halves (2). Each module half comprises an outer part (3, 17, 19, 21, 23, 25, 27, 30, 33). The outer part has a straight section (3') and two end sections (3'') at the ends of the straight section and placed perpendicular to the straight section, giving a U-form in end view. An inner part (5, 18, 20, 22, 24, 26, 28, 31, 34) is placed in a recess (4) formed between the end sections of the outer part (3, 17, 19, 21, 23, 25, 27, 30, 33). The inner part (5, 18, 20, 22, 24, 26, 28, 31, 34) has a number of layers (6).