Wireless Charging Cooling Assembly for Device Heat Buildup
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Solution Overview
Problem
Existing wireless charging devices suffer from inadequate heat dissipation, which can lead to damage from excessive heat generation during prolonged charging, especially in high-power devices.
Innovation Solution
A wireless charging device with a housing, a transmit coil, and a heat dissipation assembly that includes a semiconductor refrigeration chip and fans to manage heat dissipation, utilizing a thermally conductive member and strategically positioned air vents to enhance cooling efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If electromagnetic signals are transmitted through walls and floors to provide wide-area wireless charging, then the coverage area is improved, but power loss increases and charging efficiency deteriorates
Solution Approach 1:
The patent divides the large-area charging space into multiple smaller magnetic zones by deploying several magnetic generators at different locations. Each generator creates a localized magnetic field that can be independently controlled, allowing the system to provide wide coverage while maintaining high charging efficiency in each segment and reducing overall power loss.
2Area of stationary object
If multiple magnetic generators are used to expand charging coverage, then the coverage area is improved, but device complexity increases
Solution Approach 1:
The patent employs multiple magnetic generators that can serve dual purposes: each generator independently provides wireless charging power while simultaneously acting as a signal transmitter for location identification. This multi-functionality allows the system to expand coverage area without proportionally increasing system complexity, as the same hardware components perform multiple functions.
Solution Approach 2:
The system incorporates signal receiving devices that detect signals from the magnetic generators and provide feedback to a control device. The control device processes this feedback information to determine the user's location and dynamically adjusts the charging parameters of each magnetic generator accordingly, enabling intelligent coordination that manages system complexity while maintaining expanded coverage.
3Loss of energy
If the transmitter and receiver are kept close together, then charging efficiency is improved, but the charging area is limited
Solution Approach 1:
The patent segments the charging space into multiple localized magnetic fields generated by distributed magnetic generators. Each generator-mat pair creates a high-efficiency charging zone where the transmitter and receiver remain close, while the collection of multiple segments provides extensive overall coverage. This segmentation allows the system to maintain high charging efficiency in each local area while achieving large total coverage area.
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 the temperature of both the electronic device and the charging device, improving the overall cooling efficiency and preventing damage from heat buildup.
Implementation Method 1
Wireless power transmission is performed using magnetic fields generated by a magnetic generator
Implementation Method 2
a magnetic receiver configured to receive the magnetic signal from the magnetic generator and charge the battery based on the magnetic signal
Data Source
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AI summary
This application provides a wireless charging device for charging an electronic device. The wireless charging device includes a housing, a transmit coil, and a heat dissipation assembly. The housing is provided with a panel. The transmit coil is disposed in the housing, and is located on a side of the panel. The housing is configured to place an electronic device to be charged, and the electronic device is at a distance from the panel. The housing is provided with an air vent located under the panel. The heat dissipation assembly includes a semiconductor refrigeration chip and a fan. The semiconductor refrigeration chip includes a cold end and a hot end. The hot end is disposed on the housing. The fan is disposed on the housing, and air blown by the fan passes through the cold end and is blown out from the air vent. The air blown by the fan passes through the cold end and a temperature of the air is reduced, and the air passes between the panel and the electronic device to reduce a temperature of the electronic device.