Discussion board help and admin topics > Half Baked Ideas
Shake-em-up flashlight generator
Formula1:
Hm....... no other thoughts?
hartiberlin:
I recently also bought such a shake-it-up flashlight in a 1 Euro Store where they did have this as a special offer
and some were already broken and I got these even cheaper and I dissassembled one and was amazed,
that it had 2 button cells batteries in them
and the supposed to be magnet was no magnet, but just a lightly magnetized iron rod.
So somehow this flashlight worked differently by just using the battery voltage
and the iron rod in the coil somehow only modulated the button cell voltage at the coil,
so the AC was rectified and then fed into a cap...
Did not disassemble it further, but I found it strange, that it had these 2 button cell
batteries in them...
So it probably was a cheap ripp-off, cause it still used these button batteries#
when I thought it would contain just a magnet and a coil...
Regards, Stefan.
Formula1:
--- Quote from: hartiberlin on March 10, 2008, 08:38:53 PM ---I recently also bought such a shake-it-up flashlight in a 1 Euro Store where they did have this as a special offer
and some were already broken and I got these even cheaper and I dissassembled one and was amazed,
that it had 2 button cells batteries in them
and the supposed to be magnet was no magnet, but just a lightly magnetized iron rod.
So somehow this flashlight worked differently by just using the battery voltage
and the iron rod in the coil somehow only modulated the button cell voltage at the coil,
so the AC was rectified and then fed into a cap...
Did not disassemble it further, but I found it strange, that it had these 2 button cell
batteries in them...
So it probably was a cheap ripp-off, cause it still used these button batteries#
when I thought it would contain just a magnet and a coil...
Regards, Stefan.
--- End quote ---
Sounds a bit weird... Does it still work an infinite amount?
-Or less overtime?
nightlife:
I thought I would post you picture here so we can focus on it rather then have it get lost in all my idiotic ideas.
Have you thought about what to use for the parts such as the pivoting action on the generator? Would it be like a freewheeling hub on a bike?
Formula1:
--- Quote from: nightlife on March 14, 2008, 05:51:32 AM ---I thought I would post you picture here so we can focus on it rather then have it get lost in all my idiotic ideas.
Have you thought about what to use for the parts such as the pivoting action on the generator? Would it be like a freewheeling hub on a bike?
--- End quote ---
To tell you the truth......
Wind up generators are the only thing I considered to be the pivoting point...
-The only generator that would work with rotation that I knew while allowing enough freedom in movement so that the magnet at the bottom could be attracted by each magnet
As for the switches... Not sure what I would use....
-I suppose I could rig up a really ghetto one using common switches but I don't even think that would work
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