Cable Management in Hinged Portable Devices
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Solution Overview
Problem
Portable electronic devices, such as notebook computers, face issues with cable tangling and inability to automatically adjust cable length during the opening and closing of the display body, leading to tension loss and mechanical constraints.
Innovation Solution
A portable electronic device design incorporating a hinge mechanism, spring, and multiple pillars to manage the cable, providing a winding route and maintaining tension through the spring's elasticity, preventing tangling and allowing automatic length adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the cable is extended to connect the first body and the second body, then the electrical connection is maintained, but the cable becomes susceptible to tangling and cannot automatically adjust its length
Solution Approach 1:
The cable is divided into multiple segments (first cable segment, second cable segment, third cable segment) that can be independently routed through different gaps between pillars. This segmentation allows each segment to move and adjust independently, preventing tangling while maintaining electrical connection during the rotation of the second body relative to the first body.
Solution Approach 2:
Multiple pillars are introduced as intermediary structures between the first body and the cable. These pillars create defined gaps through which the cable segments pass, acting as mediators that guide and constrain the cable's movement path. This intermediary structure prevents the cable from tangling by restricting it to specific routing paths while still allowing necessary movement.
2Adaptability or versatility
If the cable is fixed in length, then the tension is maintained, but the cable cannot accommodate the expanding and contracting motion of the second body
Solution Approach 1:
The cable management structure transitions from a static fixed-length cable to a dynamic system where the cable can expand and contract. The multiple cable segments routed through gaps between pillars allow the cable to dynamically adjust its effective length during the rotation motion, while the spring component maintains appropriate tension throughout this dynamic range.
Solution Approach 2:
The cable system's physical parameters (effective length, tension) are allowed to change dynamically during operation. As the second body rotates relative to the first body, the cable segments change their routing length through the gaps, and the spring adjusts the tension parameter to maintain reliability while accommodating the motion-induced length variations.
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 prevents cable tangling and maintains tension, ensuring smooth operation and efficient length adjustment with the opening and closing of the device, enhancing usability and heat dissipation efficiency.
Implementation Method 1
the spring serves to provide proper elasticity to the cable to maintain the tension of the cable
Data Source
AI summary
A portable electronic device includes a first body, a second body, a hinge mechanism, a spring, and a cable extending from the first body to the second body. The second body is connected to the first body through the hinge mechanism. The first body has a first pillar, a second pillar, and a third pillar. The second pillar is located between the first pillar and the third pillar. The spring is disposed in the first body as corresponding to the second pillar. The cable includes a first winding segment extending through a gap between the first pillar and the second pillar, a second winding segment extending through a gap between the second pillar and the spring, and a third winding segment extending through a gap between the second pillar and the third pillar. Two ends of the spring are respectively connected to the first body and the second winding segment.