Adhesive Metal-Film Shielding Tape for Faster Wire Harness Wrapping
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Solution Overview
Problem
Existing methods for shielding electric wires and wire harnesses in vehicles require time-consuming processes, such as spirally winding metal foil tapes and separately fixing shielding materials with adhesive tapes, which increase the time and cost of the work process.
Innovation Solution
A shielding tape with an adhesive surface and a thin metal film, where the metal film is exposed on one end, allowing pairs of tapes to adhere and create a shielding space, eliminating the need for spiraling and separate fixation, thus simplifying the shielding and protective functions for electric wires and wire harnesses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal foil tape is spirally wound around electric wire bundle and adhesive tape is wound around metal foil tape, then shielding function is provided, but work process time increases
Solution Approach 1:
The patent combines the metal foil tape (shielding function) and adhesive tape (fixation function) into a single integrated shielding tape structure. The adhesive layer is applied directly to the metal foil, eliminating the need for separate winding and fixation operations, thus reducing work process time while maintaining shielding effectiveness.
Solution Approach 2:
The shielding tape is designed to perform multiple functions simultaneously: the metal foil provides electromagnetic shielding, the adhesive layer provides fixation to the wire bundle, and the exposed adhesive regions enable self-fixation. This multi-functional design eliminates the need for separate components and operations.
2Reliability
If electric wire bundle is wrapped with shielding exterior material and fixed by adhesive tape, then protective function is provided, but work process time increases
Solution Approach 1:
The patent merges the shielding function (metal foil) and protective/fixation function (adhesive tape) into a single shielding tape component. This integrated structure provides both electromagnetic shielding and mechanical protection/fixation in one application step, reducing work process time while maintaining protective functionality.
3Ease of operation
If thin metal film adheres to adhesive surface leaving exposed adhesive region, then ease of fixation is improved, but manufacturing precision requirement increases
Solution Approach 1:
The shielding tape is designed with non-uniform metal foil coverage: the metal foil covers most of the adhesive surface for shielding, but deliberately leaves exposed adhesive regions at the ends. This local variation in coverage provides both shielding functionality and self-fixation capability through the exposed adhesive, simplifying installation while the manufacturing process controls the exposure regions within acceptable tolerances.
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
This solution significantly improves work efficiency by allowing easy application and adaptation of shielding and protective functions without the need for complex winding or additional fixation, reducing manufacturing costs and weight, while enabling flexible sizing and placement of shielding members.
Implementation Method 1
a thin metal film adhering to the adhesive surface. The thin metal film adheres to the adhesive surface while leaving a region where the adhesive surface is exposed
Data Source
AI summary
A shielding tape includes a tape material having an adhesive surface, and a thin metal film adhered to the adhesive surface. The thin metal film adheres to the adhesive surface while leaving a region where the adhesive surface is exposed on at least one end portion of the tape material in a width direction.