Heated Fluid Line Intermediate Layer for Safe Conductor Access
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Solution Overview
Problem
Existing electrically heatable fluid lines are cumbersome to manufacture and require skilled labor to configure, as exposing the heating conductor arrangement for electrical connections risks damaging the conductor or severing it, especially when cutting to length from an endless fluid line.
Innovation Solution
Incorporating an intermediate layer with lower stability than the inner and outer cross-sectional areas, which can be easily severed and removed without damaging the heating conductor arrangement, allowing for manual or tool-free access to the ends of the heating conductors, using materials like EPDM or non-linked synthetic materials for the intermediate layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the outer cross sectional area is cut to expose the heating conductor arrangement for electrical connections, then electrical connections can be made, but the heating conductor arrangement risks being damaged or severed
Solution Approach 1:
The outer cross sectional area is divided into multiple segments along the fluid line. These segments can be independently removed to expose the heating conductor arrangement for electrical connections while leaving the rest of the fluid line intact and protected. This segmentation allows controlled access without compromising the overall structural integrity.
Solution Approach 2:
The outer cross sectional area is designed to be extractable or removable from specific portions of the fluid line. This extraction capability enables workers to access the heating conductor arrangement for making electrical connections without permanently damaging or severing the conductor, as the outer layer can be taken out and potentially reused or discarded without affecting the core heating element.
2Productivity
If the fluid line is manufactured endlessly and cut to length, then production efficiency improves, but the heating conductor arrangement becomes vulnerable during cutting
Solution Approach 1:
The outer cross sectional area is pre-configured with cutting marks or predetermined weak points that guide the cutting process. These preliminary markings ensure that cuts are made at safe locations that do not coincide with the heating conductor arrangement, thereby protecting the conductor during the high-speed cutting process while maintaining production efficiency.
Solution Approach 2:
An intermediate protective layer or coating is applied between the heating conductor arrangement and the outer cross sectional area. This intermediary layer acts as a buffer during cutting operations, absorbing the cutting action and preventing direct contact between the cutting tool and the heating conductor, thus protecting the conductor while allowing efficient cutting of the endless fluid line.
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
Simplifies the manufacturing process by enabling easy cutting and removal of the outer cross-sectional area without damaging the heating conductor arrangement, allowing for cost-effective production and safe electrical insulation, with the intermediate layer providing electrical insulation and mechanical support.
Implementation Method 1
a heating conductor arrangement (4, 5) which is arranged in a thermally conductive connection with the inner cross sectional area (3)
Implementation Method 2
The intermediate layer (7) is preferably electrically insulating
Implementation Method 3
an intermediate layer (7) which separates the heating conductor arrangement form the outer cross sectional area (6)
Data Source
AI summary
An electrical heatable fluid line includes an inner cross sectional area which surrounds a medium conducting duct, a heating conductor arrangement which is arranged in a thermally conductive connection with the inner cross sectional area, and an outer cross sectional area which surrounds the heating conductor arrangement between the inner cross sectional area and the outer cross sectional area an intermediate layer which separates the heating conductor arrangement from the outer cross sectional area and which mechanically has a lower stability than the inner cross sectional area and the outer cross sectional area.