Metal Shielding Frame Structure for USB 3.0 Wi-Fi Noise Isolation
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Solution Overview
Problem
USB 3.0 connector noise interferes with Wi-Fi 2.4G signals, degrading their transmission speed and range due to broadband noise within the same frequency range.
Innovation Solution
A metal shielding frame is inserted between the socket case and socket joint, featuring ground hemming portions and protrusions to compensate for tolerance and provide grounding, reducing noise interference by up to 90%.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If USB 3.0 connector is used for high-speed data transmission, then transmission speed is improved, but broadband noise is generated that interferes with Wi-Fi 2.4G signals
Solution Approach 1:
A metal shielding frame is introduced as an intermediary component between the USB 3.0 connector and the Wi-Fi antenna. This shielding frame acts as a mediator that blocks the electromagnetic noise generated by the USB connector from reaching the Wi-Fi signal, thereby resolving the interference issue while maintaining high-speed data transmission
Solution Approach 2:
The ground hemming portions of the metal shielding frame convert the harmful broadband noise into beneficial grounding paths. By providing dedicated grounding contact areas, the noise energy is directed to ground rather than radiating and interfering with Wi-Fi signals, thus transforming the harmful effect into a useful noise suppression mechanism
2Object-generated harmful factors
If metal shielding frame is added to reduce noise, then noise radiation energy is reduced, but device complexity increases
Solution Approach 1:
The metal shielding frame is merged with the existing socket structure by integrating the grounding function into the socket's ground pins. The shielding frame utilizes the existing grounding infrastructure of the USB connector, combining multiple functions (shielding, grounding, and mechanical support) into a single integrated component, thereby reducing overall device complexity
Solution Approach 2:
The metal shielding frame serves multiple functions simultaneously: it provides electromagnetic shielding, establishes grounding paths through hemming portions, and offers mechanical support for the connector. This multi-functionality reduces the need for separate components, thereby minimizing the increase in device complexity while achieving effective noise reduction
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 metal shielding frame effectively reduces noise radiation energy and ensures reliable connector connection, preventing poor contact and noise leakage, while grounding to the electronic device's metal housing.
Implementation Method 1
The metal shielding frame is adapted to be disposed in a socket... The ground hemming portion abuts the metal housing... can decrease the noise radiation energy by 90%
Data Source
AI summary
A metal shielding frame is provided. The metal shielding frame is adapted to be disposed in a socket, wherein the socket is adapted to be electrically connected to a connector. The metal shielding frame includes a sleeve-shaped frame body and at least one ground hemming portion. The sleeve-shaped frame body includes a first enclosed edge. The ground hemming portion is formed on the first enclosed edge. The socket includes a socket case and a socket joint. The socket case surrounds the socket joint. The sleeve-shaped frame body is adapted to be inserted between the socket case and the socket joint.