Researching The Portable Phone Charging Device

In recent years, electronic technology has been developed so rapidly that theportable electronic devices, mobile phones, MP4and notebook computer has becomean indispensable part of people’s lives. With the functions of these electronic devices,power supply for portable electronic devices has exposed a lot of drawbacks: Quality,limited capacity, not anywhere to charge, short life, even if not in use, stored in aperiod of time electrical energy will naturally run out. These drawbacks of the powersupply has become constrained bottleneck in the development of electronic products.Efficient, long-term, stable and easy to charge and discharge of the electronicequipment power supply has become an indispensable part of portable electronicdevices anytime, anywhere. The rechargeable battery has gone through thenickel-cadmium batteries, nickel metal hydride batteries, lithium-ion battery changegradually come to dead ends. It has been found to improve the speed of the batterycapacity has been difficult to meet people’s needs and also a lot of pollution on theenvironment. Therefore, this study research on the portable mobile phone powersupply device. The main work of the thesis are as follows:Proposed the use of kinetic energy as a source of energy in power generation,human body movement is a great energy, if can use human kinetic energy generation,it can do it whenever and wherever possible. Proposed the use of piezoelectrictransducers as mechanical and electrical energy conversion between devices,piezoelectric transducer is the key to realize the energy power generation. Proposedthe use of drive pendulum as a realization of human kinetic energy to the piezoelectricconversion of mechanical energy to drive the pendulum, convenient manufacture andhigh plasticity can be made into various ornaments, can use drive swing horizontallyto the piezoelectric transducer, piezoelectric transducer to the human body as thekinetic energy is converted into the stress source of electrical energy. The key is a setof the use of human energy drives the driving swing design, make the driving swingknocking device of piezoelectric transducer and the realization of human energypower generation.The device for measuring ultrasonic velocity of university physics experimentmodel for the study, using ultrasonic receiving end of the piezoelectric transducer as the research object, using the driving force applied to the receiving end of horizontalpendulum ultrasonic transducer, solves the transformed into electrical energy from thehuman body kinetic energy problem.In the experimental setup, the transmitting transducer ultrasonic velocitymeasuring instrument for the receiver transducer, which drive the swing in twodirections are able to tap the receiver transducer, solves the driving swing mechanicalenergy loss of the problem.Adopting the method of experimental tests, shows that this device is feasible.