Wireless Power Coil Cooling Through Magnetic Isolation Assembly
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Solution Overview
Problem
Existing wireless power transmission devices face challenges in effectively dissipating the increasing heat generated due to improved performance, which affects their efficiency and reliability.
Innovation Solution
A wireless power transmission device is designed with a heat dissipation casing, including a coil, magnetic isolation assembly, first and second heat dissipation colloids, and a blocking structure, where heat is sequentially transmitted through these components to the casing, enhanced by a liquid cooling pipeline and fins, ensuring efficient heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wireless power transmission device performance is improved, then power transmission capability is enhanced, but heat generation increases
Solution Approach 1:
The patent introduces heat dissipation colloids as intermediary substances between the coil and magnetic isolation assembly, and between the magnetic isolation assembly and heat dissipation casing. These colloids serve as thermal mediators that efficiently transfer heat from the coil through the magnetic isolation assembly to the heat dissipation casing, resolving the contradiction by providing a dedicated thermal management pathway that doesn't interfere with the power transmission function.
Solution Approach 2:
The heat dissipation system is segmented into multiple distinct components: the coil, magnetic isolation assembly, heat dissipation colloids (first and second), and heat dissipation casing. This segmentation allows each component to perform its specific function - the coil generates power, the magnetic isolation assembly provides magnetic shielding, and the colloids plus casing handle thermal management - thereby enabling high power transmission while effectively managing the resulting heat.
2Temperature
If heat dissipation structure is added, then heat dissipation effect is improved, but device complexity increases
Solution Approach 1:
The heat dissipation casing serves multiple functions: it provides the structural enclosure for the wireless power transmission device, acts as a heat sink to absorb and dissipate heat, and forms part of the thermal conduction pathway through the heat dissipation colloids. This multi-functionality reduces device complexity by combining structural and thermal management roles into a single component rather than requiring separate heat dissipation structures.
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 device achieves effective heat dissipation, maintaining optimal operating temperatures and improving reliability by effectively dissipating heat generated during operation.
Implementation Method 1
The first heat dissipation colloid is disposed between the coil and the magnetic isolation assembly to make thermocouple of the coil with the magnetic isolation assembly
Implementation Method 2
The second heat dissipation colloid is disposed between the magnetic isolation assembly and the heat dissipation casing to make thermocouple of the magnetic isolation assembly with the heat dissipation casing
Implementation Method 3
the heat dissipation casing includes a liquid cooling pipeline
Implementation Method 4
the heat dissipation casing includes a plurality of fins located in the liquid cooling pipeline
Data Source
AI summary
A wireless power transmission device including a heat dissipation casing, an energy transmission module, a first heat dissipation colloid and a second heat dissipation colloid is provided. The energy transmission module is disposed in the heat dissipation casing and includes a coil and magnetic isolation assembly. The magnetic isolation assembly is disposed between the coil and the heat dissipation casing. The first heat dissipation colloid is disposed between the coil and the magnetic isolation assembly to make thermocouple of the coil with the magnetic isolation assembly. The second heat dissipation colloid is disposed between the magnetic isolation assembly and the heat dissipation casing to make thermocouple of the magnetic isolation assembly with the heat dissipation casing, wherein the heat generating during an operation of the coil is transmitted to the heat dissipation casing sequentially through the first dissipation colloid, the magnetic isolation assembly and the second dissipation colloid.