Flexible Diaphragm Inductive Charging for Device Cooling
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Solution Overview
Problem
Inductive charging of mobile electronic devices often generates unwanted heat, which can damage batteries and other components as charging rates increase, posing a risk to the apparatus being charged.
Innovation Solution
A charging apparatus featuring one or more charging coils mounted on a flexible diaphragm that oscillates to direct airflow towards the device, with a ferrite shield to manage magnetic fields and vents to enhance cooling, allowing for controlled power transfer and temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If inductive charging rate is increased, then charging speed is improved, but heat generation increases causing damage risk to battery and components
Solution Approach 1:
The patent converts the harmful heat generated during inductive charging into a beneficial cooling mechanism by using the same electromagnetic field to drive a flexible diaphragm that pumps air flow across the charged device, transforming waste heat into useful cooling action
Solution Approach 2:
The patent introduces a flexible diaphragm as an intermediary component between the charging coil and the device being charged. This diaphragm acts as a mediator that converts electromagnetic energy into mechanical air pumping action, facilitating heat removal without direct thermal contact
2Temperature
If a flexible diaphragm is added for cooling, then heat management is improved, but device complexity increases
Solution Approach 1:
The flexible diaphragm serves multiple functions simultaneously: it acts as a structural support for mounting the charging coil, functions as an air pumping mechanism for cooling, and serves as a magnetic shield substrate. This multi-functionality reduces the need for separate cooling components
Solution Approach 2:
The patent merges the charging function and cooling function into a single integrated structure where the charging coil is mounted on the flexible diaphragm, combining power transfer and heat management into one unified system
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 cools the mobile apparatus during charging, preventing overheating and ensuring the longevity of battery and component health by maintaining consistent power transfer and managing heat effectively.
Implementation Method 1
one or more charging coils configured to transfer power to a mobile apparatus
Implementation Method 2
movement of the flexible diaphragm directs air flow towards the mobile apparatus
Implementation Method 3
The ferrite shield may be configured to direct a magnetic field generated by the one or more charging coils towards the mobile apparatus
Implementation Method 4
The ferrite shield may be configured to, at least partially, block a magnetic field generated by the one or more charging coils from impinging circuitry within the charging apparatus
Data Source
AI summary
A charging apparatus for inductive charging. The charging apparatus comprises one or more charging coils configured to transfer power to a mobile apparatus and at least one flexible diaphragm configured so that movement of the flexible diaphragm directs air flow towards the mobile apparatus. At least one of, the one or more charging coils or actuating circuitry for actuating the one or more charging coils are mounted on the flexible diaphragm.