Solar Recharging Case for Portable Electronics

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Solution Overview

Problem

Existing portable cell phone battery chargers lack the ability to recharge from light exposure and effectively indicate the remaining power to the electronic device.

Innovation Solution

A portable case with a recharging assembly that includes solar cells to convert light into electrical energy, a processing unit to manage power flow, and a meter to display available power, along with additional features like a speaker for alerts and a display for time, ensuring the electronic device is protected and efficiently recharged.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If traditional battery chargers are used, then the device can be recharged, but the charger cannot be recharged from light exposure

Engineering Contradiction:
Improverecharging capabilityVSAvoidlight energy conversion
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The patent combines a traditional battery pack with solar cells into a single integrated recharging assembly. The solar cells are positioned on the case surface and electrically connected to the battery pack, allowing the charger to accept both conventional electrical charging and light energy conversion simultaneously, thus resolving the contradiction between recharging capability and adaptability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The recharging assembly is designed to perform multiple functions: it can recharge the electronic device through conventional electrical connection and simultaneously convert light energy into electrical energy through solar cells. This multi-functionality allows the charger to operate in various environments (with or without light exposure) and eliminates the limitation of traditional chargers that cannot utilize light energy.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Loss of information

If no power indication system is added, then the device remains simple, but the user cannot determine the remaining power to recharge the electronic device

Engineering Contradiction:
Improvepower status informationVSAvoidindication system
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent employs LED indicators that change color or illuminate to indicate different power levels and charging states. This visual feedback mechanism provides clear power status information to the user without requiring complex digital displays or interfaces, thus resolving the contradiction between information availability and device simplicity.

Inventive Principle:
Principle #32Color changes

3Reliability

If the case only protects the device, then the structure remains simple, but the device cannot be recharged during transport

Engineering Contradiction:
Improvedevice protectionVSAvoidrecharging assembly
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates the recharging assembly directly into the protective case structure. The battery pack and solar cells are housed within the case, and the electronic device is positioned to make electrical contact with the battery pack when placed in the case. This integration allows the case to simultaneously provide mechanical protection and recharging functionality without requiring separate charging equipment, thus resolving the contradiction between protection reliability and structural simplicity.

Inventive Principle:
Principle #5Merging (Combining)

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 enables recharging of electronic devices using solar energy and provides clear power status indicators, ensuring continuous operation and protection during transport.

Implementation Method 1

The recharging assembly includes at least one solar cell coupled to the case and electrically coupled to the battery pack

Methodology Applied
Scientific EffectPhotovoltaic effect: Photovoltaic Effect

Data Source

PatentUS7667433B1Recharging cover system
Publication Date: 2010.02.23 SMITH STEVEN D
  • US7667433B1 patent drawing
  • US7667433B1 patent drawing
  • US7667433B1 patent drawing

AI summary

A recharging cover system for storing, protecting and recharging an electronic device during transport of the electronic device includes a case receives the electronic device to protect the electronic device from being inadvertently damaged. A recharging assembly is positioned in the case. The recharging assembly is electrically coupled to the electronic device to recharge the electronic device when the electronic device is positioned in the case.