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Self-helping Flashlight
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Flashlight Features
Self-helping Power Generation, No Battery is Needed
Environmental Protection
Water Proof
Good For
Emergency - such as Earthquake, Power Outage
Outdoor
Technological Background
Traditional flashlight gets energy with dry battery and lights as perfect luminance with new
dry battery. However, the general dry battery can light only a few dozen hours, and its luminance
will more and more weak with using, and be fading at last when the dry battery's service life is end.
To abandon the dry battery used only one time will not only increase the tight energy sources,
especially raw materials of dry battery in the world of today, but also pollute grievously the environment.
At present, there are some kinds of chargeable flashlight which charges to cry battery with storage battery.
However, the charging frequency of storage battery is few, and for cry battery is less.
Even with the charged cry battery, the use time of the chargeable flashlight is short, and it still need
power source, so it couldn't release the tight energy sources and raw materials of dry battery at present,
and the effect is not perfect.
Invention
The purpose of inventing this new practical product is to offer a kind of self-helping power generation environmental protection flashlight. It doesn't need dry battery supplying and applied power source charging, and need only the user to drive the power apparatus by oneself to light.
This new practical product includes a shell. Its characteristic is that there are an increase driving gear which driven by reciprocating drum, a small generator, and an ac-dc converted charging circuit of the generator inside the shell. The reciprocating drum consists of a drum body twined by a string whose end lies outside of the shell, a rotation shaft which lies inside the drum body, and a disc spring slice whose interior end fixed on the rotation shaft and exterior end fixed on the inner wall of the drum body.
The bigger driving gear of the increase driving gear is fixed on the rotation shaft of the reciprocating drum, the smaller driven gear on the rotation shaft of the generator, and there is a driver gear lies between the bigger driving gear and the smaller driven gear.
The ac-dc converted charging circuit of the generator consists of a commutating voltage-stabilizing circuit, a switcher, a white light emitting diode, and a charging capacitance circuit which is parallel with the white light emitting diode.
The advantage of this new practical product is that the conception is original, the technology is simple,
and the cost is low. It doesn't need dry battery supplying and applied power source charging, and need
only the user to drive the power apparatus by oneself to light. It can release effectively tight energy
sources, especially raw materials of dry battery at present, and reduce the pollution of the environment.
It uses self-generating apparatus, is of small appearance, easy to carry, and particularly suitable for the
conditions, such as travel, do field work, be in village and forest when the flashlight should be used in a
long time but the energy accommodation is lack.
In addition, it could be used as emergency charge to mobile telephone if there is mobile telephone charger interface additional.
The conception of this new practical product is original, the technology is simple, and the cost is low. It doesn't need dry battery supplying and applied power source charging, and need only the user to drive the power apparatus by oneself to light. It can release effectively tight energy sources, especially raw materials of dry battery at present, and reduce the pollution of the environment. It uses self-generating apparatus, is of small appearance, easy to carry, and particularly suitable for the conditions, such as travel, do field work, be in village and forest when the flashlight should be used in a long time but the energy accommodation is lack. And there is a great application and dissemination prospect.
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