Ionic Wind Cooling for Wireless Charging Heat Management
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Solution Overview
Problem
Portable mobile devices generate significant heat during charging, which degrades their performance and reduces the usable charge time and quality, and existing charging technologies do not effectively manage this heat.
Innovation Solution
A wireless charging device incorporating an ionic wind generator that creates a cooling airstream using ionized air to draw in and exhaust air, cooling both the device and the charging components, while also optionally generating an ozone airstream for disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is used to charge mobile devices, then charging convenience is improved, but heat generation increases causing performance degradation
Solution Approach 1:
The patent extracts the harmful heat from the charging system by introducing active cooling mechanisms (fans or Peltier elements) that remove excess thermal energy from both the charging device and the mobile device, thereby maintaining low operating temperatures while preserving wireless charging convenience
Solution Approach 2:
The patent introduces an intermediary cooling system that acts as a mediator between the heat-generating wireless charging components and the surrounding environment, using airflow or thermoelectric cooling to transfer heat away from critical components without interfering with the charging function
2Productivity
If charging speed is increased to reduce charging time, then productivity is improved, but heat generation increases degrading charge quality
Solution Approach 1:
The patent implements feedback control by monitoring temperature during charging and dynamically adjusting charging parameters (such as power delivery levels) to maintain optimal operating conditions, ensuring high charging speed while preventing temperature-induced charge quality degradation
Solution Approach 2:
The patent changes operational parameters by adjusting voltage, current, or power delivery levels based on real-time temperature conditions, allowing the system to operate at high speed when cool and reduce power when temperature rises, thereby maintaining charge quality across varying conditions
3Temperature
If cooling mechanisms are added to manage heat, then temperature control is improved, but device complexity increases
Solution Approach 1:
The patent achieves multi-functionality by designing cooling mechanisms that simultaneously cool both the charging device components and the mobile device being charged, while also incorporating disinfection functionality through ozone generation from the same airflow system, thereby reducing overall device complexity through functional integration
4Temperature
If airflow is directed through channels to cool surfaces, then cooling efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs porous materials or perforated surfaces instead of complex sealed channels, allowing airflow to naturally distribute through multiple paths without requiring precise alignment, thereby maintaining high cooling efficiency while reducing manufacturing precision requirements
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 efficiently manages heat generated during charging, prolonging battery life and improving charging efficiency, and simultaneously disinfects the mobile device, enhancing both performance and hygiene.
Implementation Method 1
when a voltage is applied to the emitter, air ionizes around the emitter and is drawn to the collector, thereby creating the airstream
Implementation Method 2
an ionic wind generator, for generating an airstream to draw air into the housing through the at least one air intake port, through the cavity, and pushing air out of the housing through the at least one air exhaust port
Implementation Method 3
The charging assembly may comprise an inductive coil for wirelessly imparting a charge on the mobile device
Implementation Method 4
The ionic wind generator, for generating an ozone airstream to draw air into the housing through the at least one air intake port
Data Source
AI summary
A charging device includes a charging assembly for imparting a charge on a mobile device, a housing for receiving the mobile device to be charged, and for defining a cavity therein for housing the charging assembly. There is at least one air intake port in the housing for allowing air to be drawn into the cavity and at least one air exhaust port in the housing for allowing air to be exhausted from the cavity. There is an ionic wind generator, for generating an airstream to draw air into the housing through the at least one air intake port, through the cavity, and push air out of the housing through the at least one air exhaust port. The ionic wind generator comprises an emitter and a collector, such that when a voltage is applied to the emitter, air ionizes around the emitter and is drawn toward the collector, thereby creating the airstream.