Shield Wire Adhesive Braided Body Sheath Terminal Processing
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Solution Overview
Problem
Conventional shield wires with braided bodies face difficulties in terminal processing due to the need for separate removal of the braided body after sheath stripping, which is cumbersome, and those with conductive foils adhered by an adhesive layer suffer from poor bending resistance and electromagnetic shield properties.
Innovation Solution
A shield wire configuration where a conductive fiber braided body is adhered to the sheath via an adhesive layer, allowing simultaneous stripping of the braided body during sheath removal, enhancing bending resistance and electromagnetic shielding while simplifying terminal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the braided body is not adhered to the sheath, then the terminal processing is simple, but the braided body removal becomes burdensome and requires additional steps
Solution Approach 1:
The patent merges the sheath and braided body into a single integrated structure by adhering them together. This allows both components to be removed simultaneously during terminal processing, eliminating the need for separate removal steps and simplifying the overall operation.
Solution Approach 2:
The adhesive layer is applied in advance during manufacturing to bond the braided body to the sheath. This preliminary action ensures that when terminal processing occurs, the integrated structure can be removed as one unit without requiring additional removal operations.
2Ease of operation
If the conductive foil is adhered to the external insulator by an adhesive layer, then the terminal processing is simplified, but the bending resistance and electromagnetic shield property deteriorate
Solution Approach 1:
The patent changes the material parameter from conductive foil to conductive fiber, and from external insulator to sheath. This parameter change allows the use of an adhesive layer without compromising bending resistance or electromagnetic shielding, as the conductive fiber and sheath materials are selected to maintain these properties while still being adhesive-compatible.
Solution Approach 2:
The patent employs composite materials including the adhesive layer, conductive fiber braided body, and sheath. This composite structure achieves both simplified terminal processing through adhesion and maintained reliability through careful selection of materials that preserve bending resistance and electromagnetic shielding properties.
3Ease of manufacture
If the braided body is made without adhesion to sheath, then the manufacturing is simple, but the tensile force concentrates on the sheath reducing tension resistance
Solution Approach 1:
The adhesive layer merges the braided body and sheath into a unified load-bearing structure. This merging allows tensile forces to be distributed across both components rather than concentrating solely on the sheath, thereby improving overall tension resistance while maintaining manufacturing simplicity.
Solution Approach 2:
The adhesive layer acts as an intermediary that transfers and distributes tensile forces between the braided body and sheath. This intermediary function enables effective load sharing, improving tension resistance without complicating the manufacturing process.
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 integrated braided body and sheath configuration improves bending resistance and maintains excellent electromagnetic shielding, facilitating easier terminal processing and reducing the risk of braided body breakage during repeated bending.
Implementation Method 1
the conductive fiber braided body is adhered to the sheath by an adhesive layer interposed between the conductive fiber braided body and sheath
Data Source
AI summary
A shield wire is formed of eight twisted insulated core wires 1, an inclusion 2 between these respective insulated core wires 1, a tape 3 laterally wound around an outer periphery of a core formed of the insulated core wires and inclusion, a drain wire 4 disposed on an outer surface of the tape, a conductive fiber braided body 5 formed on an outer peripheral surface of the tape so as to interpose the drain wire, a sheath 6 that forms an outer peripheral surface of the braided body, and an adhesive layer 7 between the braided body and sheath. A braided body 5′ is adhesively integrated to the sheath 6′ by an adhesive layer; thus, the braided body 5′ is stripped with the sheath. This eliminates a need for a removal work of the braided body after stripping the sheath, thus ensuring good workability of the terminal processing.