Rotatable Airflow Guide for Orientation-Stable Heat Dissipation
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Solution Overview
Problem
Electronic devices generate heat during operation, and existing heat dissipation methods are inefficient, particularly in wearable devices where orientation changes can disrupt airflow and heat dissipation.
Innovation Solution
Incorporation of a rotatable guide member in the housing to redirect airflow based on device orientation, ensuring consistent heat dissipation regardless of tilting or rotational positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed airflow path is used in the housing, then the structure is simple, but heat dissipation efficiency deteriorates when the device orientation changes
Solution Approach 1:
The airflow path includes a movable component that can change its configuration dynamically. When the device is tilted, the airflow path automatically adjusts its direction to maintain proper heat dissipation, transitioning from a fixed structure to an adaptive one that responds to device orientation changes
Solution Approach 2:
The airflow path utilizes changes in gravitational force direction (parameter change) to automatically adjust airflow direction. By allowing the airflow path to be influenced by gravity's directional changes, the system maintains effective heat dissipation across different orientations without requiring active control mechanisms
2Ease of manufacture
If the airflow path is fixed relative to the housing, then manufacturing is easy, but thermal management performance deteriorates during device movement
Solution Approach 1:
The airflow path incorporates a movable section that can dynamically reconfigure based on device orientation. This dynamic element allows the system to maintain thermal management effectiveness during device movement while keeping the overall structure relatively simple for manufacturing
3Reliability
If a rotatable guide member is added to adjust airflow, then heat dissipation consistency improves, but device complexity increases
Solution Approach 1:
The airflow path utilizes the device's own movement and gravitational forces to automatically adjust airflow direction. The system serves itself by using the tilting motion and gravity to trigger airflow path reconfiguration, eliminating the need for external sensors, motors, or control systems
Solution Approach 2:
The airflow path leverages changes in gravitational parameter direction to automatically adjust airflow. By designing the airflow path to respond to gravity's directional changes, the system achieves consistent heat dissipation across orientations without requiring 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
Maintains effective heat dissipation across varying orientations by dynamically adjusting airflow paths, enhancing thermal management in wearable devices.
Implementation Method 1
at least one fan, configured to generate airflow to discharge air introduced through the inlet to the outside of the housing through the outlet
Implementation Method 2
When an orientation of the head-wearable device is tilted in a first rotational direction with respect to a gravity direction, the guide member is configured to rotate in a second rotational direction opposite to the first rotational direction
Implementation Method 3
heat generated by the electronic component in the housing is dissipated to outside of the housing by the airflow
Data Source
AI summary
An electronic device comprises: a housing including an inlet and an outlet spaced apart from the inlet; a printed circuit board including one surface and electronic components arranged on the one surface; at least one fan configured to generate airflow and arranged inside the housing to cool the electronic components; and a guide member including a guide having at least a part arranged inside the outlet and configured to guide the airflow, wherein, based on the housing rotating in a first rotation direction, the guide member can rotate with respect to the housing in a second rotation direction opposite to the first rotation direction.