Mobile Device Case With Integrated Wireless Charging Coil
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Solution Overview
Problem
Smartphone cases hinder the smooth operation of wireless charging functions due to protection and aesthetic requirements, despite the growing demand for wireless charging as a standard feature in smartphones.
Innovation Solution
A mobile device case with a cover unit, a first power source attaching part, and a wireless charge activation part that includes a battery unit with an induction coil, allowing for magnetic coupling or metal material attachment to enable wireless charging without the need for a separate cable, while also incorporating a light emitting lamp and button for user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a smart phone case is used for protection and aesthetic purposes, then the device is protected from physical impact and aesthetic satisfaction is improved, but the wireless charging function cannot be smoothly performed
Solution Approach 1:
The case is divided into an inner case body and an outer case body, with the wireless charging coil part integrated into the inner case body. This segmentation allows the protective case structure to coexist with the wireless charging function, as the coil part can directly contact the smartphone back surface through the inner case opening while the outer case provides aesthetic coverage.
Solution Approach 2:
The wireless charging coil part is nested within the inner case body, which itself is nested within the outer case body. This nested structure enables the charging function to be embedded within the protective case, allowing both protection and wireless charging to function simultaneously without interference.
2Ease of operation
If a wireless charging function is implemented, then charging convenience is improved, but the case structure becomes more complex
Solution Approach 1:
The wireless charging coil part is merged with the inner case body, forming an integrated unit. The first power source attaching part is also merged with the inner case body, creating a unified structure that provides both protection and wireless charging functionality without requiring separate components.
Solution Approach 2:
The case is designed to serve multiple functions: physical protection through the case bodies, wireless charging through the integrated coil part, and power source attachment through the attaching part. This multi-functionality reduces the need for separate devices and simplifies the overall 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
Enables seamless wireless charging of mobile devices by maintaining a coupled state during use, enhancing portability, mobility, and user convenience without the need for a physical connection.
Implementation Method 1
one or both of the first power source attaching part and the second power source attaching part may be formed of a magnet for magnetic coupling or a metal material coupled to the magnet
Implementation Method 2
an induction coil part transferring the power from the charging part to the mobile device so that the mobile device is wirelessly chargeable
Data Source
AI summary
The present disclosure relates to a case for a mobile device capable of activating a wireless charging function. The case for a mobile device according to the present disclosure includes a cover unit mounted on a mobile device to protect the mobile device, a first power source attaching part provided in the cover unit and attached to and detached from a power source device configured to wirelessly charge the mobile device, and a wireless charge activation part configured to perform charging of a battery of the mobile device when the power source device is recognized as being close to the mobile device.