Movable-Axle Hinge Structure for Device Heat Dissipation
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Solution Overview
Problem
Existing hinges in electronic devices, such as laptop computers, with fixed rotating axles hinder heat dissipation due to lack of clearance between device parts during opening.
Innovation Solution
A hinge design featuring a movable rotating axle and cam piece mechanism, which creates additional clearance between device parts by moving the rotating axle upward through a slot mechanism as the device opens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a fixed rotating axle is used to connect device parts, then structural simplicity is maintained, but clearance between device parts is insufficient affecting heat dissipation
Solution Approach 1:
The rotating axle is transformed from a fixed position to a movable one that can shift along the slot during rotation. The axle moves dynamically between an initial position (when closed) and a second position (when open), creating variable clearance that improves heat dissipation while maintaining structural integrity throughout the motion cycle.
Solution Approach 2:
The hinge structure is divided into separate functional components: the base seat with slot, the movable rotating axle, and the cam mechanism. This segmentation allows the axle to move independently within the slot while the cam controls the motion, resolving the contradiction between structural simplicity and heat dissipation requirements.
2Temperature
If a movable rotating axle with cam mechanism is used, then clearance and heat dissipation are improved, but device complexity increases
Solution Approach 1:
The cam is integrated directly onto the rotating axle as a unified component rather than a separate mechanism. This merging reduces the number of parts and simplifies the overall structure while still achieving the desired movable axle function for improved heat dissipation.
Solution Approach 2:
The cam profile on the rotating axle automatically controls the axle's movement along the slot during rotation. The geometry of the cam itself generates the motion control without requiring external actuators or complex control systems, maintaining relative simplicity while achieving the heat dissipation benefit.
3Ease of manufacture
If the rotating axle remains in initial position, then manufacturing simplicity is maintained, but interference between device parts occurs during rotation
Solution Approach 1:
The rotating axle is designed to move dynamically from its initial position to a second position during the rotation operation. This dynamic adjustment prevents interference between device parts while the cam mechanism ensures smooth, controlled motion that maintains ease of operation.
Solution Approach 2:
The cam acts as an intermediary element that mediates between the rotation motion and the axle's positional adjustment. As the cam rotates, its profile guides the axle's movement along the slot, preventing interference without requiring complex external 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 hinge design effectively prevents interference between device parts during rotation, enhancing heat dissipation through increased clearance and allowing for smoother operation.
Implementation Method 1
a cam piece which is securely mounted on the rotating axle. The cam piece has a cam surrounding portion which is securely sleeved on the rotating axle, and a first protrusion which projects radially from the cam surrounding portion and which is movably disposed in the first slot portion
Data Source
AI summary
A hinge connectable between a first device part and a second device part includes a base seat unit and a rotating unit. The base seat unit includes first and second base seats for connecting with the first and second device parts, respectively. A first base plate of the first base seat is formed with a moving slot having a first slot portion and a second slot portion. The rotating unit includes a rotating axle movably extending through the moving slot and rotated with the second base seat, and a cam piece rotated with the rotating axle. During rotation of the rotating axle and the cam piece with the second base seat, a first protrusion of the cam piece is moved along a lower edge of the first slot portion to bring the rotating axle into upward movement.