Foldable Device Grounding Path With Elastic Hinge Contact
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Solution Overview
Problem
The morphological changes in folding electronic devices affect the length of the grounding path for antennas, leading to performance deterioration and interference due to non-optimal path lengths and unstable electrical connections.
Innovation Solution
The implementation of a rotating shaft connecting two enclosures with elastic components that allow for a reconstructed grounding path when the device is in a folded state, ensuring a stable and efficient electrical connection through elastic components that adapt to the new configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the antenna uses a fixed grounding path determined during production, then the device structure is simple, but the antenna performance deteriorates when the device is folded due to non-optimal path length
Solution Approach 1:
The grounding path is designed to be dynamic rather than fixed. The first elastic component allows the grounding connection to adapt its configuration based on the folding state, enabling the system to maintain optimal performance in both unfolded and folded states without requiring multiple fixed grounding paths
Solution Approach 2:
The grounding path parameters (length, configuration) are allowed to change in response to the device's folding state. The elastic component enables the grounding path to adjust its physical parameters dynamically, transforming from a static design to one that adapts to different operational configurations
2Reliability
If the grounding path is fixed in the unfolded state configuration, then the manufacturing is simple, but the electrical connection becomes unstable when folded
Solution Approach 1:
The first elastic component serves as a flexible grounding element that can bend and deform to accommodate the folding motion. This flexible component maintains stable electrical connection throughout the folding process, replacing rigid fixed-path structures that would fail under mechanical stress
3Reliability
If the antenna grounding path does not adapt to folded state, then the device structure remains simple, but signal loss and interference increase
Solution Approach 1:
The grounding path dynamically adjusts its configuration based on the folding state to maintain optimal signal quality. The elastic component enables this dynamic adaptation, allowing the system to preserve antenna performance without requiring complex active control mechanisms
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 maintains antenna performance by providing a stable and efficient electrical connection, preventing signal loss and interference by adapting the grounding path to the folded state, ensuring reliable conductivity.
Implementation Method 1
a first elastic component, where the first elastic component is electrically conductive, and the first elastic component is disposed in the first enclosure; and the first electric-conductor is electrically connected to the second electric-conductor through the first elastic component when the first enclosure and the second enclosure are in a folded state
Data Source
AI summary
An electronic device includes: a rotating shaft; a first enclosure and a second enclosure, where the first enclosure is rotatably connected to the second enclosure through the rotating shaft, the first enclosure includes a first electric-conductor, the second enclosure includes a second electric-conductor, and the first electric-conductor is electrically connected to the second electric-conductor through the rotating shaft when the first enclosure and the second enclosure are in an unfolded state; a first elastic component, where the first elastic component is electrically conductive, and the first elastic component is disposed in the first enclosure; and the first electric-conductor is electrically connected to the second electric-conductor through the first elastic component when the first enclosure and the second enclosure are in a folded state.