Interference Prevention Material Segments Connection Wire
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Solution Overview
Problem
Current technologies lack an effective and cost-efficient method to prevent electromagnetic radiation interference in electronic devices, particularly in vehicles where components like LCD modules generate strong interference, failing to meet electromagnetic compatibility standards.
Innovation Solution
An interference prevention apparatus and method that divides connection wires using interference prevention materials like copper foil, aluminum foil, or conductive fabrics, which are grounded, to reduce the loop area of return current signals, thereby minimizing electromagnetic radiation interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional connection wires are used without interference prevention materials, then the device complexity and cost are low, but electromagnetic radiation interference is strong and EMC standards are not met
Solution Approach 1:
The connection wire is divided into multiple segments by inserting interference prevention materials at specific positions. This segmentation breaks the continuous current path, forcing return currents to flow through designated ground paths rather than through the signal wire, thereby reducing electromagnetic radiation interference while maintaining manageable device complexity
Solution Approach 2:
Interference prevention materials are introduced as intermediary elements between the signal transmission path and the ground. These materials act as mediators that redirect return currents through controlled impedance paths, reducing electromagnetic coupling and radiation without significantly increasing overall device complexity
2Object-affected harmful factors
If interference prevention materials are added to connection wires, then electromagnetic radiation interference is reduced, but the cost and device complexity increase
Solution Approach 1:
Instead of applying interference prevention measures to the entire connection wire, the patent applies interference prevention materials only at specific critical positions where electromagnetic radiation is most problematic. This localized approach reduces the amount of material needed and simplifies the manufacturing process while still achieving effective interference prevention
Solution Approach 2:
The patent employs simple, inexpensive interference prevention materials such as metal clips, conductive tapes, or ferrite beads that can be easily added during assembly. These are straightforward components that do not require complex manufacturing processes, maintaining ease of manufacture while effectively reducing electromagnetic radiation interference
3Object-generated harmful factors
If the loop area of return current signals is reduced, then electromagnetic radiation interference is minimized, but the connection structure becomes more complex
Solution Approach 1:
The connection structure is segmented into distinct functional zones: signal transmission sections and ground return sections. By inserting interference prevention materials at transition points, the patent creates separate current paths that minimize loop area formation while keeping the overall connection structure relatively simple and modular
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 approach effectively reduces electromagnetic radiation interference in circuits at a low cost by minimizing the loop area of return current signals, improving the compatibility of electronic devices and preventing faults caused by interference.
Implementation Method 1
electromagnetic radiation interference generated in a circuit
Implementation Method 2
the interference prevention material is connected to ground
Data Source
AI summary
An interference prevention apparatus and method are disclosed. The interference prevention apparatus includes: an interference prevention module and a control module, where the control module is configured to send a working signal to the interference prevention module; the interference prevention module is configured to receive the working signal, and control a working state of a first component according to the working signal; the first component is connected to the control module by using at least one first connection wire, the at least one first connection wire is divided into at least two segments by an interference prevention material, and the interference prevention material is connected to ground; and the interference prevention module is further configured to send a return current signal to the control module, and the return current signal flows to the control module through the interference prevention material. A corresponding interference prevention method is further disclosed. According to the technical solutions of the interference prevention apparatus and method provided in embodiments of the present invention, a connection wire between a control module and an interference prevention module is divided by using an interference prevention material, which reduces a loop area of a return current signal, and can effectively reduce electromagnetic radiation interference generated in a circuit at a low cost.