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George Cameron. Mobile charging device for electronics. Back Story. Imagine that you are in a meeting on the phone and your phone dies with no way to charge it or continue your meeting. Initial Problem Statement. 3 Words: Scavenging Energy Charge Problem Statement
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George Cameron Mobile charging device for electronics
Back Story • Imagine that you are in a meeting on the phone and your phone dies with no way to charge it or continue your meeting.
Initial Problem Statement • 3 Words: • Scavenging • Energy • Charge • Problem Statement • Today’s batteries die after prolonged use without a way to quickly charge them on the spot.
Revised Problem Statement • Charging personal electronic mobile devices is inefficient and hard to accomplish without direct access to a power outlet. • Design a product that will harness energy in nature and process that power into a charging system
Article Critiques - 1 • APA Citation: • Qin, Y., Wang, X., & Wang, Z. L. (2008, February 14). Access : Microfibre|[ndash]|nanowire hybrid structure for energy scavenging : Nature. Nature Publishing Group : science journals, jobs, and information. Retrieved November 5, 2010, from http://www.nature.com/nature/journal • Article Summary: • The article tells of a thread material that can harness kinetic motion and transfer it to a battery device. This will be critical to a mobile energy charging system. • Article Type: • Technical
Article Critiques - 2 • APA Citation: • Stark, I. (2006, April 3). Invited Talk: Thermal Energy Harvesting with Thermo Life. IEEE Xplore. Retrieved November 5, 2010, from ieeexplore.ieee.org/xpl/freeabs_all.jsp?reload=true&arnumber=1612886 • Article Summary: • This article describes a thread system that can harness heat energy from a surface. This will be equally critical to a mobile energy charging system. • Article Type: • Technical
Past and Current Solutions Pros: Motion Charge Simple Reusable Compatible HuMo - The Human Dynamo Cons: Awkward Bulky nPower Personal Energy Generator Foot-powered cell phone charger Pros: Simple Efficient Air Powered Pros: Power from arm swing Fashionable Compact Cons: Doesn’t Charge Cons: Bulky Inconvenient Ugly Desh, Initials. (2010, April 06). 15 cellphone chargers that harness kinetic energy for a clean recharge. Retrieved from http://www.greendiary.com/entry/15-cellphone-chargers-that-harness-kinetic-energy-for-a-clean-recharge/
Patents • Patent Number: 2010/0276944 • Patent Description: Describes a process/system that harness power from motion of joints Pros -Compact -Efficient -Simple Cons -
Patents • Patent Number: 2009/0095673 • Patent Description: Describes a system of taking solid organic waste and converting it into a fuel. Pros -Efficient -Recycles -Power Generating Cons -Large -Complicated -Must be maintained
Patents • Patent Number: 2006/0192386 • Patent Description: Describes a system that harnesses the energy from the up and down motion of walking. Pros -Motion Charging -Compact Cons -Backpack -Large
Where We Are Going • A clip system that can be clipped onto almost any material and can harness kinetic motion energy.
Sketches Power Shirt/Power Glove Power Clip
Power Glove • Takes the movement of fingers to rotate electromagnet creating current. • Current harnessed to charge battery. • Charge pad in the palm to wireless charge mobile device.
Power Suit • The material of the suit is a piezoelectric system designed to harness all movement of the body to a central power location. • Currently not feasible.
Power Clip • Modular design to minimize weight. • Central unit designed to process power to a battery and then to mobile device. • Most feasible.
Requirements • From the survey we have given, we have discovered that the product must have the following requirements, and the nice to haves would come later.
Math and Science Concepts • PE=KE, so KE=mgh for potential vertical motion • Using the walking motion, a magnet can be accelerated up and down changing mechanical to electrical energy (V=I x R (Voltage=Current x Resistance)) • The energy can then be stored in a battery for later use.
Summary • Key Requirement: Charge Mobile Device • Where we are going: Power Clip • Any questions?