Proximity-Aware Heat Dissipation Control for Safe Device Surfaces
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Solution Overview
Problem
Existing heat dissipation methods in electronic devices can cause surface temperatures to rise excessively, posing safety hazards when users come into contact with the device.
Innovation Solution
A heat dissipation control method that adjusts heat dissipation modes based on the distance and surface temperature of the device relative to a user, using sensors to determine appropriate modes such as normal, slow, rapid, or first/second rapid dissipation to maintain safe surface temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If rapid heat dissipation is implemented through the device surface, then internal temperature control is improved, but surface temperature becomes excessively high causing safety hazards
Solution Approach 1:
The patent implements dynamic heat dissipation control by adjusting the heat dissipation mode based on real-time detection of user distance and surface temperature. The system transitions between different heat dissipation modes (first mode, second mode, third mode) depending on whether the user is close or far from the device, thereby dynamically balancing internal temperature control with surface temperature safety
Solution Approach 2:
The patent employs feedback mechanisms through sensors that continuously monitor user distance and surface temperature. Based on this feedback, the control unit adjusts the heat dissipation strategy in real-time, creating a closed-loop control system that prevents surface temperature from exceeding safe thresholds while maintaining effective internal heat dissipation
2Reliability
If heat dissipation is increased to prevent internal overheating, then reliability is improved, but user safety deteriorates due to scalding risk
Solution Approach 1:
The system dynamically adjusts heat dissipation intensity based on user proximity. When users are far from the device, rapid heat dissipation modes are activated to ensure reliable operation. When users approach or contact the device, the system automatically reduces surface heat dissipation to safe levels, maintaining both reliability and user safety
Solution Approach 2:
The patent applies different heat dissipation strategies to different spatial zones. The heat dissipation mode varies based on the local condition of user proximity - aggressive heat dissipation when no user is present, and conservative heat dissipation when user contact is detected, ensuring safety in user-interaction zones while maintaining performance in non-user zones
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
Effectively maintains device surface temperatures within a safe range for user contact, preventing scalding and ensuring normal device operation.
Implementation Method 1
a distance detection apparatus, configured to receive a distance between the device and the human body
Implementation Method 2
a temperature detection apparatus, configured to acquire a temperature of a device surface
Implementation Method 3
controlling the device to perform heat dissipation according to the heat dissipation mode
Implementation Method 4
rapidly transferring the heat inside the electronic device to the device surface (the shell), and implementing rapid heat dissipation through the device surface
Data Source
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Figure 4~5
AI summary
The present disclosure provides a heat dissipation control method. Said method comprises: in response to receiving a distance between a device operator and a device, acquiring the temperature of the surface of the device; and according to the distance between the device operator and the device, the temperature of the surface of the device, a preset distance threshold and a preset temperature threshold, determining a heat dissipation manner for the device, and controlling the device to perform heat dissipation according to the heat dissipation manner. The present disclosure further provides a heat dissipation control apparatus, a heat dissipation system, a computer device and a readable medium.