Connector Ground Structure for Portable Terminal Noise Reduction
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Solution Overview
Problem
Conventional portable terminals experience significant data noise in the connector connecting the display device to the main board, which affects peripheral devices due to the rapid signal flow, leading to errors and performance issues.
Innovation Solution
A ground structure is implemented in the connector, comprising a shield can and a conductive gasket that electrically connects the connector to the main board, reducing noise by providing a stable grounding mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data is transmitted at high speeds between the main board and display device, then productivity is improved, but data noise increases
Solution Approach 1:
A ground structure comprising a shield can and gasket is introduced as an intermediary component between the connector and the main board. The shield can surrounds the connector, and the gasket provides electrical connection between the shield can and the ground portion of the connector, creating a mediated path for noise dissipation that does not interfere with the high-speed data transmission signals.
Solution Approach 2:
The ground structure converts the harmful noise generated by high-speed data transmission into a beneficial effect by providing a controlled path for noise dissipation. The shield can and gasket combination directs the noise energy to ground, transforming the harmful electromagnetic interference into a controlled electrical connection that protects peripheral devices while maintaining transmission performance.
2Device complexity
If the connector is directly connected to the main board, then device complexity is reduced, but noise affects peripheral devices
Solution Approach 1:
The ground structure with shield can and gasket serves as an intermediary layer between the connector and the main board. This intermediate structure does not significantly increase overall device complexity while effectively isolating the connector from noise that would otherwise directly affect peripheral devices like antennas and camera modules.
Solution Approach 2:
The grounding function is segmented into distinct components: the shield can that surrounds the connector and the gasket that provides electrical connection. This segmentation allows each component to perform its specific function efficiently while keeping the overall structure manageable and not excessively complex.
3Object-generated harmful factors
If a ground structure with shield can and gasket is added, then noise is reduced, but device complexity increases
Solution Approach 1:
The grounding system is divided into two functional segments: the shield can for electromagnetic shielding and the gasket for electrical connection. This segmentation allows for modular implementation and maintenance while achieving effective noise reduction. The segmented structure is easier to manufacture and assemble compared to a monolithic grounding solution.
Solution Approach 2:
The ground structure is designed to be self-contained and self-explanatory in its function. The shield can naturally surrounds the connector, and the gasket automatically provides the electrical connection path when installed, reducing the need for additional complex control mechanisms or assembly steps.
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 ground structure effectively reduces noise in the connector, ensuring stable operation of the portable terminal and improving signal integrity, thereby enhancing the performance of peripheral devices like antennas and cameras.
Implementation Method 1
a shield can disposed to cover the main board and including a ground structure formed at the connector engaging portion region to enclose the connector
Implementation Method 2
a gasket disposed to cover the ground structure and tightly couple the ground structure to the ground portion of the connector
Data Source
AI summary
A ground apparatus for connecting components for a portable terminal suppresses the occurrence of noise by grounding a connector. The ground apparatus includes a connector engaging portion at one side of a main board. A connector that includes a grounding portion is inserted into the connector engaging portion. A shield can is disposed to cover at least at part of the main board. The shield can includes a ground structure formed at the connector engaging portion area to enclose the connector and electrically couple the ground structure with the ground portion of the connector.