Noise Suppression Cable With Opposite Spiral Magnetic Layers
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Solution Overview
Problem
Existing noise suppression cables face issues with flexibility and ease of winding due to the hardness of amorphous metal used in magnetic material tapes, and existing solutions do not adequately suppress electromagnetic wave noise while maintaining cable flexibility.
Innovation Solution
A noise suppression cable design featuring an internal and external magnetic tape layer with a resin layer and magnetic material layer, spirally wound in opposite directions to enhance flexibility and ease of winding, while forming annular magnetic paths to suppress electromagnetic wave noise without a ferrite core.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If amorphous metal is used for the magnetic material tape to achieve high magnetic permeability and noise suppression, then the noise suppression effect is improved, but the cable flexibility deteriorates due to the extreme hardness of the material
Solution Approach 1:
The patent uses a composite structure consisting of a resin layer and a magnetic material layer. The resin layer provides flexibility and ease of handling, while the magnetic material layer (made of amorphous metal) provides high magnetic permeability and noise suppression. This composite approach allows the cable to maintain both flexibility and effective electromagnetic wave noise suppression without the drawbacks of using pure amorphous metal tape.
2Object-affected harmful factors
If amorphous metal is used for the magnetic material tape to achieve high magnetic permeability, then the noise suppression effect is improved, but the ease of manufacture deteriorates due to difficulty in cutting and winding
Solution Approach 1:
The magnetic material layer is bonded to a resin layer, creating a composite tape that is easier to cut and wind than pure amorphous metal. The resin provides a more manageable substrate that simplifies manufacturing processes while the magnetic material layer maintains the noise suppression functionality.
3Object-affected harmful factors
If a ferrite core is used for noise suppression, then the electromagnetic wave noise is suppressed, but the device complexity increases due to troublesome assembly and potential disturbance
Solution Approach 1:
The patent merges the noise suppression function directly into the cable structure by winding the magnetic material tape (with resin layer) around the cable core. This integration eliminates the need for separate ferrite core components and their associated assembly steps, reducing device complexity while maintaining effective electromagnetic wave noise suppression.
Solution Approach 2:
The cable structure itself provides the noise suppression function through the integrated magnetic material tape, eliminating the need for additional external noise suppression components. The cable becomes self-sufficient in terms of noise suppression, avoiding the complexity of assembling separate ferrite cores.
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 cable achieves improved flexibility and ease of winding while effectively suppressing electromagnetic wave noise, reducing the risk of injury during handling and maintaining appearance without the drawbacks of ferrite core usage.
Implementation Method 1
a magnetic material layer formed on one surface of the resin layer, the internal magnetic tape layer being spirally wound on a periphery of the insulated wire in a first direction along a longitudinal direction of the cable so as to allow the magnetic material layer of the internal magnetic tape layer to face outside; and an external magnetic tape layer comprising a resin layer and a magnetic material layer formed on one surface of the resin layer, the external magnetic tape layer being spirally wound on a periphery of the internal magnetic tape layer in a second direction different from the first direction along the longitudinal direction of the cable so as to allow the magnetic material layer of the external magnetic tape layer to face inside
Data Source
AI summary
A noise suppression cable includes an insulated wire, an internal magnetic tape layer including a resin layer and a magnetic material layer formed on one surface of the resin layer, the internal magnetic tape layer being spirally wound on a periphery of the insulated wire in a first direction along a longitudinal direction of the cable so as to allow the magnetic material layer of the internal magnetic tape layer to face outside, and an external magnetic tape layer including a resin layer and a magnetic material layer formed on one surface of the resin layer, the external magnetic tape layer being spirally wound on a periphery of the internal magnetic tape layer in a second direction different from the first direction along the longitudinal direction of the cable so as to allow the magnetic material layer of the external magnetic tape layer to face inside.