Mobile Device Thermal Control via Dynamic Heat Suppression
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Solution Overview
Problem
Thinner mobile devices face challenges in efficient heat dissipation due to increased functionality, leading to overheating issues despite conventional systems' inability to prevent heat generation without turning off the device.
Innovation Solution
A temperature control system and method that uses a temperature sensor to detect internal temperatures and control heat-generating modules, switching to a heat generation suppressing mode when overheating is detected, and returning to normal mode when temperatures decrease, thereby maintaining optimal operating temperatures without shutting down the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If mobile devices are made thinner to enhance portability, then portability is improved, but heat dissipation efficiency deteriorates
Solution Approach 1:
The patent changes the operational parameters of heat-generating modules dynamically based on temperature conditions. When temperature exceeds thresholds, the system adjusts clock speeds, power consumption, and operational modes of processors and other modules to reduce heat generation while maintaining thin device form factor
Solution Approach 2:
The patent implements a feedback control system using temperature sensors to continuously monitor internal temperature and adjust module operations accordingly. The controller receives temperature data and dynamically modifies operational parameters to maintain thermal balance within thin device constraints
2Measurement precision
If conventional systems control clock speed using temperature sensor, then temperature monitoring is improved, but overheating prevention deteriorates
Solution Approach 1:
The patent transitions from static clock speed control to dynamic operational control based on real-time temperature conditions. The system dynamically adjusts not only clock speed but also power consumption levels, operational modes, and module activation states to effectively prevent overheating while maintaining accurate temperature monitoring
Solution Approach 2:
The patent segments the control approach by applying different control strategies to different heat-generating modules based on their specific thermal characteristics and operational requirements. Each module can be independently controlled to optimize both temperature monitoring accuracy and overheating prevention
3Productivity
If mobile device operates continuously without shutdown, then productivity is improved, but heat accumulation worsens
Solution Approach 1:
The patent implements periodic temperature monitoring and conditional operational adjustments rather than continuous shutdown. The system periodically checks temperature conditions and temporarily adjusts module operations when thresholds are exceeded, allowing continuous productivity while managing heat accumulation through rhythmic control cycles
Solution Approach 2:
The patent changes operational parameters dynamically to balance productivity and heat management. By adjusting power consumption, clock speeds, and operational modes based on temperature conditions, the system maintains continuous operation capability while preventing excessive heat accumulation
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 prevents overheating by dynamically controlling heat-generating modules, such as processors, displays, and chargers, ensuring the mobile device operates within safe temperature ranges and maintains performance.
Implementation Method 1
a temperature sensor for sensing an internal temperature of the mobile device
Data Source
AI summary
A temperature control system of a mobile device is provided. The system includes a memory for storing a set temperature value and a release temperature value, a temperature sensor for sensing an internal temperature of the mobile device; at least one module that emits heat, and a controller. The controller compares the output of the temperature sensor with the set temperature value in a normal mode in order to determine whether the mobile device is overheated, and controls, if the mobile device is overheated, the at least one module to operate in a heat generation suppressing mode, compares the output of the temperature sensor with the release temperature value in the heat generation suppressing mode in order to determine whether to release the heat generation suppressing mode, and executes the normal mode if the heat generation suppressing mode is released according to the comparison result.