Wireless Charging Coil Vent Layout for Central Receiver Cooling
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Solution Overview
Problem
Devices for wireless energy transmission to smartphones or smartwatches often fail to provide effective cooling during energy transmission, leading to reduced charging speed and processor performance due to increased device temperature.
Innovation Solution
The opening for air flow is arranged centrally over the induction coil, allowing targeted air flow to the central area of the energy receiver, enhancing cooling efficiency and preventing throttling of charging speed and processor performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the opening is arranged at the edge region of the support surface, then the air flow can be guided along the underside of the charging electronics system, but the cooling effect on the central area of the energy receiver is insufficient
Solution Approach 1:
The opening is repositioned from the edge region to the central area of the support surface, directly above the induction coil. This local change in position enables the air flow to be directed precisely where heat generation is most intense (the central area of the energy receiver), thereby improving cooling effectiveness without requiring additional cooling components.
2Productivity
If wireless energy transmission is performed, then convenient charging is achieved, but the energy receiver heats up significantly reducing charging speed
Solution Approach 1:
The air cooling system is activated during the wireless energy transmission process to preemptively remove heat before it accumulates to throttling levels. By establishing continuous air flow through the opening positioned over the induction coil, the system maintains optimal temperature conditions throughout charging, preventing the temperature-induced charging speed reduction that occurs in conventional systems.
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
This design significantly improves cooling efficiency, preventing throttling of charging speed and processor performance by directing air flow to the central area of the energy receiver, where heat dissipation is most challenging, thus maintaining optimal performance during energy transmission.
Implementation Method 1
the device comprises at least one induction coil for the transmission of the electrical energy
Implementation Method 2
the air flow is conducted, in a targeted manner, to a central area of the energy receiver and, there, can therefore achieve a particularly good cooling effect
Data Source
AI summary
A device for wireless transmission of electrical energy to an energy receiver, including a support surface, on which the energy receiver is arranged during energy transmission. The device includes an induction coil for transmitting electrical energy and an air duct extending within the device from an opening formed in the support surface into the device. The opening is arranged over the induction coil. The air duct is routed through a winding of the induction coil, which is preferably arranged directly under the support surface. Advantageously, the support surface is essentially rectangular, and the opening is formed on or at least close to a longitudinal axis of the support surface and is formed at a distance from an edge of the support surface. At least one projection is formed on the support surface for holding the receiving unit at a distance from the support surface so that air conducted into the air duct can better flow underneath.