Cable Routing Bracket for Flexible Printed Circuit in Hinged Laptops
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Solution Overview
Problem
Existing portable information handling systems face challenges in efficiently routing cables between the base and display chassis, particularly when the display chassis is rotated, leading to potential damage and interference issues due to the rigidity of conventional cable routing methods.
Innovation Solution
The implementation of a flexible printed circuit cable routed through a cable routing bracket that pivots about the hinge axis when the display chassis is rotated, ensuring secure and flexible connectivity between the base and display chassis components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid cable routing method is used to connect the base chassis and display chassis, then the cable routing structure is simple, but the cable is susceptible to damage during rotation and causes interference issues
Solution Approach 1:
The cable routing bracket is designed to be rotatable relative to the base chassis, allowing the bracket to dynamically adjust its position as the display chassis rotates. This dynamic adaptation enables the rigid cable to maintain proper routing geometry throughout the rotation range, preventing cable damage while maintaining routing structure simplicity
Solution Approach 2:
The cable routing bracket serves as an intermediary component between the cable and the rotating display chassis. The bracket absorbs the rotational movement through its own rotation capability, protecting the cable from direct mechanical stress and damage while maintaining stable cable routing
2Adaptability or versatility
If a flexible cable is used to accommodate rotation, then the cable can move freely during rotation, but the cable routing becomes complex and prone to interference
Solution Approach 1:
Instead of using a flexible cable that would allow free movement, the patent employs a rigid cable with a rotatable bracket that dynamically adjusts to the rotation angle. This provides the necessary adaptability for rotation while maintaining cable rigidity to prevent routing complexity and interference
Solution Approach 2:
The system changes the orientation parameter of the cable routing bracket as the display rotates. By adjusting the bracket's rotational position to match the display's rotation angle, the cable maintains optimal routing geometry throughout the motion range, achieving adaptability without increasing structural complexity
3Device complexity
If the cable is routed directly between base chassis and display chassis without a bracket, then the routing structure is simple, but the cable is exposed to damage during rotation
Solution Approach 1:
The cable routing bracket acts as a protective intermediary component that the cable passes through. This simple bracket structure shields the cable from mechanical damage during rotation while adding minimal complexity to the overall routing system
Solution Approach 2:
The rotatable bracket is pre-configured to follow the rotation path of the display chassis. This beforehand positioning ensures the cable is continuously protected during rotation, preventing damage before it can occur while maintaining routing simplicity
Data Source
AI summary
A portable information handing system. The portable information handling system includes a base chassis, the base chassis comprising a motherboard, the motherboard comprising a processor and a bus coupled to the processor, the base chassis portion comprising a cable routing bracket; a display chassis, the display chassis being rotationally-coupled to the base chassis via a hinge, the hinge having a corresponding hinge axis, the display chassis comprising a display chassis component; and, a flexible printed circuit cable, the flexible printed circuit cable being coupled to the motherboard and the display chassis component, the flexible printed circuit cable being routed from the motherboard to the display chassis component via the cable routing bracket, the cable routing bracket causing the flexible printed circuit cable to pivot about the hinge axis of the hinge when the display chassis portion is rotated.