Cable Structure With Insulating Elastic Ring
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Solution Overview
Problem
Existing cable designs with a magnetic powder layer inside an outer insulating sheath fail to meet increasing demands for anti-electromagnetic interference capability, and are prone to short circuits between metal layers.
Innovation Solution
A cable structure incorporating a wire core, metal braid layer, magnetic powder layer, metal shield, outer sheath, and an elastic ring, where the metal shield is positioned between the magnetic powder layer and outer sheath, and the elastic ring insulates the everted braid portion from the metal shield to prevent short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a metal shield is added to increase anti-electromagnetic interference capability, then electromagnetic shielding performance is improved, but the risk of short circuit between metal layers increases
Solution Approach 1:
An insulating layer is introduced as an intermediary between the metal braid layer and the metal shield layer. This insulating layer physically separates the two conductive metal layers, preventing direct electrical contact and thus eliminating the short circuit risk while allowing both layers to coexist for enhanced electromagnetic shielding performance.
Solution Approach 2:
The cable structure is segmented into distinct functional layers with clear boundaries. The metal braid layer and metal shield layer are separated by an insulating layer, creating independent functional zones that prevent electrical interference between layers while maintaining overall shielding effectiveness.
2Object-affected harmful factors
If multiple metal layers are stacked to enhance shielding, then anti-electromagnetic interference capability is improved, but device complexity increases
Solution Approach 1:
The insulating layer serves multiple functions simultaneously: it provides electrical insulation between metal layers, maintains structural integrity of the cable, and simplifies the overall design by eliminating the need for additional complex insulation structures. This multi-functionality reduces device complexity while achieving enhanced shielding.
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 solution enhances anti-electromagnetic interference capability while preventing short circuits, making the cable safer and more reliable by effectively isolating the metal braid layer from the metal shield.
Implementation Method 1
the elastic ring covers an end surface of the metal shield to insulate the everted braid portion from the metal shield
Data Source
AI summary
The present disclosure discloses a cable and a cable processing method. The cable includes a wire core, a metal braid layer, a magnetic powder layer, a metal shield, an outer sheath and an elastic ring. The metal braid layer includes an inner braid portion and an everted braid portion which are mutually connected. The inner braid portion is wrapped around an outer side of the wire core, the magnetic powder layer is wrapped around an outer side of the inner braid portion, the metal shield is wrapped around an outer side of the magnetic powder layer, and the outer sheath is wrapped around an outer side of the metal shield. The elastic ring is sleeved outside the inner braid portion, the everted braid portion is wrapped around outer sides of the elastic ring and the outer sheath, and the elastic ring covers an end surface of the metal shield.