Folded-Edge Shielding for Signal Transceivers
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Solution Overview
Problem
Conventional electromagnetic interference shielding apparatuses for high-frequency signal transceivers fail to effectively prevent leakage of high-frequency signals and external noise interference due to rough surfaces and require time-consuming assembly and disassembly processes.
Innovation Solution
The use of two folded-edge mechanisms coupled with an adhesive to form a sealed connection, creating a curved space that prevents signal leakage and noise interference, while allowing for easy assembly and disassembly, and meeting Protection Class IP68 standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws and O-rings are used to combine the cover and chassis, then the waterproof function is realized, but the slit between rough combined surfaces cannot effectively stop the leakage of high-frequency signals and cannot effectively shield external noise interference
Solution Approach 1:
The patent applies curvature to the combined surfaces of the cover and chassis, transforming rough flat surfaces into curved surfaces that enable folded-edge mechanisms. This curvature allows the edges to fold back and form sealed cavities when combined, creating effective shielding against high-frequency signals while maintaining waterproofing through the same folded-edge structure.
2Reliability
If multiple screws are used to combine the cover and chassis, then the waterproof function is realized, but much time and cost has to be spent during assembly and testing
Solution Approach 1:
The patent merges multiple functions into the folded-edge mechanism: it simultaneously provides waterproof sealing, electromagnetic shielding, and structural connection. This eliminates the need for separate screws and O-rings, reducing assembly steps and time while maintaining all required functions including waterproofing.
Solution Approach 2:
The patent extracts and eliminates unnecessary components (screws and O-rings) by replacing them with the integrated folded-edge mechanism. This simplification removes redundant parts that added complexity to the assembly process while the folded-edge structure itself provides all necessary functions.
3Ease of manufacture
If die casting is used to fabricate the cover and chassis, then the manufacturing process is established, but the rough combined surfaces cannot effectively stop signal leakage
Solution Approach 1:
The patent applies curvature to the combined surfaces of the cover and chassis, transforming rough flat surfaces into curved surfaces that enable folded-edge mechanisms. This curvature allows the edges to fold back and form sealed cavities when combined, creating effective shielding against high-frequency signals while maintaining waterproofing through the same folded-edge structure.
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 effectively attenuates high-frequency signals, prevents external noise interference, and meets IP68 protection standards, while reducing assembly time and material costs, making it suitable for both outdoor and indoor use.
Implementation Method 1
The adhesive combines the first combination portion and the second combination portion
Data Source
AI summary
An electromagnetic interference shielding apparatus for a signal transceiver employs two folded-edge mechanisms coupled together and an adhesive. The electromagnetic interference shielding apparatus includes a metal cover, a chassis having a waveguide output hole, and an adhesive. A first combination portion having a first curved section is disposed on an edge of the metal cover. A second combination portion having a second curved section corresponding to the first combination portion is disposed on an edge of the chassis. The adhesive is used to combine the first combination portion and the second combination portion. The waveguide output hole outputs a signal transmitted by the signal transceiver. The first combination portion and the second combination portion form a curved space that is used with the adhesive to prevent leakage of the transmitted signal and the interference of external noises.