Telescopic Wireless Charging Coils With Thermal State Switching
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Solution Overview
Problem
Wireless charging in electronic devices leads to significant heating due to low conversion efficiency, causing excessive temperatures and poor user experience.
Innovation Solution
A telescopic electronic device with retractable coils and a heat dissipation apparatus that adjusts charging states based on coil temperatures, switching between charging modes to prevent overheating and using a drive mechanism for automatic adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is used, then charging convenience is improved, but temperature increases due to heat generation
Solution Approach 1:
The wireless charging system is divided into multiple independent coils (first coil and second coil in the charging base, third coil in the electronic device). This segmentation allows selective activation of different coils based on temperature conditions, enabling the system to switch between charging paths to manage heat generation while maintaining continuous charging functionality.
Solution Approach 2:
The charging system implements dynamic temperature-based control where the charging base monitors coil temperatures and automatically switches between the first and second coils based on preset temperature thresholds. This dynamic adjustment allows the system to adapt to changing thermal conditions, preventing overheating while maintaining charging convenience.
2Productivity
If wireless charging is used, then charging speed is improved, but heat dissipation becomes difficult leading to overheating
Solution Approach 1:
The charging base incorporates temperature detection functionality that continuously monitors the temperature of the first and second coils. Based on this feedback, the control unit makes real-time decisions to switch between coils when temperature thresholds are exceeded, creating a closed-loop control system that balances charging speed with thermal management.
Solution Approach 2:
The system changes operational parameters by switching between different coil configurations based on temperature conditions. When the first coil exceeds the preset temperature, the system transitions to using the second coil, effectively changing the physical state of the charging system to manage heat while maintaining charging functionality.
3Use of energy by moving object
If the electronic device is closely attached to the charging base, then charging efficiency is improved, but heat conduction between device and base increases temperature
Solution Approach 1:
The charging base uses segmented coils (first and second coils) positioned at different locations, allowing the system to alternate between charging paths. This segmentation enables the device to maintain close contact with the base for efficient charging while the system manages heat conduction by switching between different coil configurations based on temperature conditions.
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 manages coil temperatures to prevent overheating, ensuring safe and efficient charging by disconnecting coils when temperatures exceed thresholds and utilizing a heat dissipation apparatus for rapid cooling.
Implementation Method 1
a wireless charging apparatus, where the wireless charging apparatus includes a first coil and a second coil... the third coil is configured to couple with the first coil for charging
Implementation Method 2
a heat dissipation apparatus for rapid cooling
Implementation Method 3
heat of the charging base and heat of the electronic device are conducted with each other
Data Source
AI summary
An electronic device component and a control method thereof, and a control apparatus of an electronic device. In the disclosed electronic device component, a wireless charging apparatus includes a first coil and a second coil, a third coil of a telescopic electronic device is arranged at a telescopic portion, and the telescopic portion is retractable into a body portion or at least partially extends out of the body portion; when the telescopic electronic device is in a first state, the telescopic portion is retracted into the body portion, and the third coil is configured to couple with the first coil for charging; when the telescopic electronic device is in a second state, the telescopic portion at least partially extends out of the body portion, and the third coil is configured to couple with the second coil for charging.