Foldable Hinge Exhaust Venting With Movable Air Deflection
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Solution Overview
Problem
The heat dissipation effect of foldable electronic devices is compromised due to the blocking of air exhaust vents by the rotating mechanism, leading to reduced heat dissipation efficiency and potential internal heating.
Innovation Solution
A foldable electronic device with a rotating mechanism, a fan structure, an air exhaust structure, and an air deflection mechanism, where the air deflection structure moves to adjust the air exhaust channel, avoiding the rotating mechanism's blocking impact and ensuring efficient heat dissipation across different device states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If the air exhaust vent is positioned directly opposite the rotating mechanism to achieve lightness and thinness, then the device structure is simplified and portability is improved, but the rotating mechanism blocks the air exhaust vent causing poor heat dissipation effect
Solution Approach 1:
The patent applies the dynamics principle by making the air deflection structure movable rather than fixed. The air deflection structure can dynamically adjust its position and deflection angle based on the rotation state of the rotating mechanism, allowing the system to adapt to different operational configurations. This enables the air exhaust channel to avoid blocking by the rotating mechanism during rotation while maintaining effective heat dissipation when the device is stationary.
Solution Approach 2:
The patent introduces an air deflection structure as an intermediary element between the air exhaust vent and the rotating mechanism. This intermediary component redirects the airflow path, allowing hot air to be deflected away from the rotating mechanism while still being exhausted effectively. The air deflection structure acts as a mediator that resolves the conflict between the fixed exhaust vent position and the moving rotating mechanism.
2Device complexity
If the air exhaust vent faces the rotating mechanism directly, then the device structure is simplified, but air exhaust resistance increases due to blocking by the rotating mechanism
Solution Approach 1:
The air deflection structure is designed to move and adjust its deflection angle dynamically based on the rotation state. When the rotating mechanism rotates and blocks the exhaust path, the air deflection structure adjusts to redirect airflow around the obstruction. This dynamic adjustment minimizes air exhaust resistance without requiring a completely complex reconfigurable exhaust system.
Solution Approach 2:
The patent changes the parameter of airflow direction by introducing the air deflection structure. Instead of maintaining a fixed exhaust path that may be blocked, the system dynamically changes the airflow direction parameter to avoid the rotating mechanism. This allows the simplified overall structure to maintain effective airflow by adjusting the flow direction rather than redesigning the entire exhaust system.
3Length of stationary object
If the air exhaust vent is positioned opposite the rotating mechanism, then the device achieves thinness and portability, but hot air reflow occurs causing internal heating and temperature rise
Solution Approach 1:
The air deflection structure serves as an intermediary that intercepts and redirects hot air before it can reflow into the device interior. By positioning and adjusting this deflection structure in the exhaust path, the system prevents hot air from reversing direction and entering the device casing, thus avoiding internal heating while maintaining the thin device profile.
Solution Approach 2:
The movable air deflection structure dynamically adjusts to prevent hot air reflow. When the rotating mechanism moves into a position that could cause hot air to reverse flow toward the device interior, the air deflection structure adjusts its angle to redirect the exhaust airflow away from the device, preventing thermal accumulation inside the thin chassis.
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 air deflection structure effectively redirects hot air away from the rotating mechanism, reducing air exhaust resistance and temperature rise, thereby enhancing overall heat dissipation efficiency and maintaining optimal performance in various device configurations.
Implementation Method 1
a fan structure may be disposed in the first housing. To implement lightness and thinness of the notebook computer, the air exhaust vent is usually directly opposite to the rotating mechanism. Under an action of a fan, cold air enters from the air intake vent and exchanges heat with the heat emitting element
Implementation Method 2
The air deflection structure may make the air exhaust channel avoid the rotating mechanism, to change an air exhaust position and an air exhaust direction of hot air, so that hot air can avoid blocking impact of the rotating mechanism
Implementation Method 3
cold air enters from the air intake vent and exchanges heat with the heat emitting element, and then hot air is exhausted from the air exhaust vent, to achieve heat dissipation effect
Data Source
AI summary
A foldable electronic device includes a first housing and a second housing that rotatably cooperate with each other via a rotating mechanism. The foldable electronic device further includes a fan structure, an air exhaust structure, and an air deflection structure. An air exhaust vent of the air exhaust structure faces the rotating mechanism. The air deflection structure blocks a partial area of the air exhaust vent, an unblocked area of the air exhaust vent forming an air exhaust channel that can avoid the rotating mechanism via the air deflection structure. The air deflection structure is movably disposed on the first housing. In a rotation process of the rotating mechanism, the air deflection structure moves at the air exhaust vent to adjust the air exhaust channel.