inspiredvoltfreak
1 mW
I had an idea. I salvaged a brand new (as in still coated in a layer of oil to prevent any corrosion new) powerchair gearbox from the scrap bin. I think it was NOS (New Old Stock) and my boss just tossed it! Anyway, bout to have gone off topic there. Basically it got me thinking, why the heck haven't i tried a electric bicycle conversion yet. I can do it for next to nothing with the parts I already have. Should be starting a thread soon.
Anyways, Here's my thought. I know that cooling would likely be a major issue with one of these powerchair motors, especially if overvolted. So i was thinking of a way to keep a motor cool.(besides rigging up a fan of some sort) Here's the idea.
On a DC brushed motor, could one seal up the casing and flood it with mineral oil going out to a small "radiator" of sorts. Big hydro transformers after all are in a bath of mineral oil!
Of course, they don't have brushes and commutators potentially kicking up sparks either. 
But a quick search on Google turned this up
This makes me think the idea has potential. Imagine overvolting one of these motors to not 36 or 48 but 72 volts!
Of course to not have the oil create too much turbulance and decrease efficency and such you would need to fill in the gaps between the magnets with a silicone or something and generally try to make surfaces in there smooth.
So, any takers? What do the wisest among us think of the idea?
Anyways, Here's my thought. I know that cooling would likely be a major issue with one of these powerchair motors, especially if overvolted. So i was thinking of a way to keep a motor cool.(besides rigging up a fan of some sort) Here's the idea.
On a DC brushed motor, could one seal up the casing and flood it with mineral oil going out to a small "radiator" of sorts. Big hydro transformers after all are in a bath of mineral oil!
Of course, they don't have brushes and commutators potentially kicking up sparks either. But a quick search on Google turned this upThis makes me think the idea has potential. Imagine overvolting one of these motors to not 36 or 48 but 72 volts!
Of course to not have the oil create too much turbulance and decrease efficency and such you would need to fill in the gaps between the magnets with a silicone or something and generally try to make surfaces in there smooth.
So, any takers? What do the wisest among us think of the idea?
