Charging Cable Temperature Control for Overheating Prevention
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Solution Overview
Problem
Charging technologies face safety risks due to heat generation at metal contact sheets during high current or voltage charging, which can lead to device damage or explosion.
Innovation Solution
A charging control method and device that determine the temperature of charging interfaces within the charging cable, power adapter, and electronic equipment, adjusting charging current or voltage to prevent overheating, and cutting off the charging circuit if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If large charging current or high charging voltage is used, then charging speed is improved, but temperature of the electronic interface increases causing safety risks
Solution Approach 1:
The patent applies preliminary action by detecting the temperature of the electronic interface before charging begins or during charging process. Temperature detection elements are positioned to monitor the interface in advance, allowing the system to predict potential overheating conditions before they become critical, thereby preventing safety issues while maintaining efficient charging.
Solution Approach 2:
The patent implements feedback control by continuously monitoring the temperature of the electronic interface during charging and using this information to adjust charging parameters. When the temperature exceeds a predetermined threshold, the system automatically reduces charging current or voltage, creating a closed-loop control system that balances charging speed with thermal safety.
2Reliability
If temperature detection and control mechanisms are added to the charging cable, then safety is improved, but device complexity increases
Solution Approach 1:
The patent uses the charging cable as an intermediary device that incorporates temperature detection and control functions. Rather than adding complex safety systems to the power adapter or electronic equipment, the cable itself becomes the active safety component, simplifying the overall system architecture while improving safety.
Solution Approach 2:
The charging cable performs self-service by autonomously detecting its own temperature conditions and controlling the charging process based on detected temperatures. The cable independently manages safety without requiring complex external control systems, reducing overall device complexity while maintaining high reliability.
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
Enhances safety by preventing overheating and potential explosions, ensuring reliable and secure charging operations.
Implementation Method 1
determining temperature of a charging interface
Implementation Method 2
Because of thermal effects of resistance, heat is generated at the metal contact sheet when charging current flows through
Data Source
AI summary
The present disclosure provides a charging control method, a charging control device, and a charging cable. The charging control method can be performed in a charging cable through which a power adapter can perform charging on an electronic equipment, and includes: determining temperature of a charging interface, the charging interface includes at least one of the following interfaces: an interface of the power adapter used for electrical connection with the charging cable, an interface of the charging cable used for electrical connection with the power adapter, an interface of the charging cable used for electrical connection with the electronic equipment, and an interface of the electronic equipment used for electrical connection with the charging cable, and controlling charging for the electronic equipment according to the temperature of the charging interface.