Wireless Power Antenna Winding Heat Pipe Thermal Management
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Solution Overview
Problem
Wireless power delivery systems face challenges in efficiently managing heat dissipation and power distribution to information handling systems, leading to potential overheating and inefficient power usage.
Innovation Solution
Incorporating a wireless power antenna with a heat pipe and thermally conductive magnetic shield, along with passive convection cooling and interdependent temperature control, to manage heat dissipation and optimize power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless power delivery is implemented, then power transfer capability is improved, but heat dissipation becomes problematic
Solution Approach 1:
A heat pipe is introduced as an intermediary thermal management component between the wireless power antenna and the environment. The heat pipe absorbs excess heat from the antenna through phase change of its internal working fluid, transporting it to a heat dissipation region where it is released to the surroundings, thereby protecting the antenna from overheating while maintaining continuous power transfer operation
Solution Approach 2:
The heat dissipation function is extracted from the antenna structure itself and separated into a dedicated thermal management subsystem. By removing heat from the antenna region through the heat pipe and directing it to a separate heat dissipation path, the antenna can maintain optimal operating temperature while continuing to deliver wireless power effectively
2Productivity
If power delivery efficiency is increased, then power transfer rate is improved, but heat generation increases
Solution Approach 1:
The heat generated by efficient power transfer, which is normally a harmful byproduct, is converted into a manageable thermal flow. The heat pipe captures this waste heat and transports it away from the antenna, transforming the problematic heat generation into a controlled thermal management process that enables sustained high-power operation without thermal damage
Solution Approach 2:
The heat pipe utilizes phase change of its internal working fluid (evaporation and condensation cycles) to transport heat. The liquid vaporizes at the hot antenna end, the vapor travels to the cooler heat dissipation region where it condenses, and the condensed liquid returns to the evaporation region, creating a continuous hydraulic-like thermal transport mechanism that efficiently moves heat away from the power transfer components
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
The solution effectively reduces overheating and optimizes power distribution, ensuring efficient and safe charging of information handling systems by utilizing a heat pipe for heat management and a thermally conductive magnetic shield to enhance power transfer efficiency.
Implementation Method 1
The antenna can include a heat pipe to conduct heat away from the antenna
Implementation Method 2
a heat pipe fabricated from an electrically conductive material and formed into a coil that functions electrically as an inductor
Implementation Method 3
thermally conductive magnetic shield to enhance power transfer efficiency
Implementation Method 4
a thermally conductive magnetic shield
Implementation Method 5
Wireless power delivery systems face challenges in efficiently managing heat dissipation and power distribution
Implementation Method 6
passive convection cooling
Data Source
Figure 1
Figure 2a~2b
Figure 2c~2d
AI summary
An inductor at a wireless power antenna includes a conductive winding. A portion of the conductive winding consists of a heat pipe. The heat pipe employs thermal conductivity and phase transition to transfer heat from the inductor. A heat sink is coupled to the heat pipe.