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whats the difference????
hi i just wanted to know what the difference was between a brushed and a brushless motor, yes i am a newb
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RE: whats the difference????
BL motors are new to me too and I don't know HOW they work but I do know they are worth the extra cash they cost. I put a bl motor in my turbo vee in place of a 19 X 2 brushed motor and gain 10 mph with no other changes. They also last much, much longer, most are good for about 11,000 hours some brushed motors are good for about 8-10 runs. You can also run more batteries for more rpm's with a bl motor and not burn it up and they normally run cooler too. After trying one you will never want a brushed motor again.
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RE: whats the difference????
Upside, more power and efficiency, no brushes or commutators to wear out or springs to replace.
Downside, initial price. |
RE: whats the difference????
To make the motor turn you need opposing charges. The magnets charge is fixed and the opposing charge comes from current through the coil which is wound onto the armature. This opposite charge pushes away on each other causing the armature to spin.
On a brushed motor the coil is wound onto the armature (the part that spins). These motors need a way to get the current to the coil which is spinning so there are brushes that ride on contacts (commutator) that give current to the coils. On a brushless motor the coil or windings are on the inside of the can and don't move. The fixed charge magnets are on the armature. You don't need brushes because you can directly hook wire up to the coils because they don't move. In a brushless motor it is the magnets on the part that spins so electrical contact to the armature is not needed. Hence, no brushes on a commutator to cause drag so up goes the power and efficiency. Another nice thing about the brushless is that water cooling will have more effect because the coils are what you want to cool and since they are on the can...they can be cooled well. |
RE: whats the difference????
hi guys thanks for all the help
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RE: whats the difference????
Hat's of wacker.
You know your engines. Regards Brettos. ORIGINAL: wake wacker J To make the motor turn you need opposing charges. The magnets charge is fixed and the opposing charge comes from current through the coil which is wound onto the armature. This opposite charge pushes away on each other causing the armature to spin. On a brushed motor the coil is wound onto the armature (the part that spins). These motors need a way to get the current to the coil which is spinning so there are brushes that ride on contacts (commutator) that give current to the coils. On a brushless motor the coil or windings are on the inside of the can and don't move. The fixed charge magnets are on the armature. You don't need brushes because you can directly hook wire up to the coils because they don't move. In a brushless motor it is the magnets on the part that spins so electrical contact to the armature is not needed. Hence, no brushes on a commutator to cause drag so up goes the power and efficiency. Another nice thing about the brushless is that water cooling will have more effect because the coils are what you want to cool and since they are on the can...they can be cooled well. |
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