Protective Cover Wireless Charging Intermediary
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Solution Overview
Problem
Wearable and portable electronic devices often require frequent recharging due to limited battery life, making them unusable when access to a standard charging source is not available, such as during outdoor activities.
Innovation Solution
A protective cover for portable electronic devices equipped with a rechargeable power storage device and electrical circuitry that enables wireless power transfer to wearable devices, allowing for on-the-go charging without the need for a separate charging accessory or power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If wearable electronic devices use small batteries to maintain small size and lightweight design, then device portability is improved, but battery life is reduced requiring frequent recharging
Solution Approach 1:
A protective cover with an integrated power storage device acts as an intermediary between the wearable device and external power sources. The cover contains a power storage device and wireless power transfer circuitry that enables charging the wearable device without requiring it to have a larger battery, thus maintaining portability while extending operational duration through wireless power transfer from the cover
2Reliability
If wearable electronic devices forego electrical connectors to resist ingress of water and dust, then device reliability is improved, but power transfer capability is reduced requiring wireless charging
Solution Approach 1:
The protective cover serves as an intermediary that provides wireless power transfer capability to the wearable device. The cover contains a power storage device and wireless power transfer circuitry that communicates and transfers power wirelessly to the wearable device, enabling power transfer without requiring physical electrical connectors on the wearable device itself, thus maintaining water and dust resistance while providing adaptability for charging
3Volume of moving object
If wearable electronic devices have limited space for power sources, then device size is reduced, but charging frequency increases
Solution Approach 1:
The protective cover contains a power storage device that is preliminarily charged before needed. The cover's power storage device can be charged separately (via wireless power transfer from another portable electronic device or other charging sources) in advance, so when the wearable device needs charging, power is already available in the cover, reducing the frequency with which the user needs to seek external charging sources
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 extended use of wearable electronic devices by providing a portable and convenient method to recharge them wirelessly from a power source within the protective cover or another device, eliminating the need for frequent recharging and access to a standard power source.
Implementation Method 1
a coil, electrical coil, inductive coil, and/or electrical inductive coil is proximate the back surface of the protective shell. The protective cover also includes electrical circuitry configured to transfer second electrical power from the rechargeable power storage device to the electrical coil. The electrical coil is configured to wirelessly transfer at least a portion of the second electrical power to a second portable electronic device
Data Source
AI summary
A protective cover for a portable electronic device includes a protective shell for receiving and at least partially covering the portable electronic device. The protective cover includes a rechargeable power storage device and an electrical coil proximate a back surface of the shell. The protective cover also includes electrical circuitry configured to transfer first electrical power from the rechargeable power storage device to the installed portable electronic device. The electrical circuitry is also configured to transfer second electrical power from the rechargeable power storage device to the electrical coil. The electrical coil is configured to wirelessly transfer at least a portion of the second electrical power to a second portable electronic device. The protective cover may also include a visual indicator for indicating a status of the wireless transfer of the second electrical power to the second portable electronic device.