Terminal Charging Chip Rotation for Heat Management
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Solution Overview
Problem
Conventional charging methods for mobile devices generate excessive heat when charging quickly, leading to reduced charging efficiency due to the need to balance charging current and time to prevent overheating.
Innovation Solution
A method and apparatus that dynamically switch between active and standby charging chips based on temperature and time thresholds to manage heat generation and optimize charging efficiency, where the standby chip with the lowest temperature or longest standby time is selected to take over charging when the active chip reaches predetermined limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging current of the charging chip is increased to reduce charging time, then charging efficiency is improved, but heat generation increases
Solution Approach 1:
The patent divides the charging function into multiple independent charging chips (first charging chip and second charging chip). When one chip is generating excessive heat, the system switches to another chip, allowing the first chip to cool down. This segmentation enables continuous high-current charging without sustained heat accumulation in a single chip.
Solution Approach 2:
The patent implements periodic switching between charging chips based on temperature thresholds and charging time. The system alternates between active and standby states for each chip, creating a periodic charging pattern that prevents continuous heat generation while maintaining overall charging efficiency.
2Object-generated harmful factors
If charging current is reduced to decrease heat generation, then heat levels are controlled, but charging time increases
Solution Approach 1:
The patent ensures continuous charging by having multiple charging chips available. When one chip switches to standby mode to reduce heat, another chip immediately takes over the charging function. This continuity eliminates charging interruptions and maintains high charging efficiency throughout the process.
Solution Approach 2:
The system prepares multiple charging chips in advance, with at least one chip in standby mode. This preliminary preparation ensures that when heat generation becomes excessive in the active chip, a ready-to-use backup chip is immediately available to take over, preventing any loss of charging time.
3Device complexity
If a single charging chip is used continuously, then device complexity is reduced, but heat management becomes difficult
Solution Approach 1:
The patent implements a charging chip rotation strategy where chips that have been actively charging are switched to standby mode to cool down and recover. After a predetermined period in standby mode, these chips can be reused. This discarding and recovering approach extends chip lifespan and maintains temperature within safe operating ranges.
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
This approach reduces heat generation and enhances charging efficiency by allowing the second charging chip to handle the battery charging with a higher current, maintaining low heat levels and improving overall charging speed.
Implementation Method 1
During the charging of the mobile device, the charging chip is always in a charging state, and thus heat will be generated during the entire charging process
Data Source
AI summary
A method for controlling charging of a terminal device includes determining whether there is a need to switch from a first charging chip currently charging a battery of the terminal device to a second charging chip waiting to charge the battery, and controlling the first charging chip to stop charging the battery and starting the second charging chip to charge the battery if it is determined that there is the need to switch.