Hummina Shadeeba
1 MW
maybe a short within the coil wouldn’t be too bad but between phases could lock up the motor
How to avoid that?
How to avoid that?
never use direct drive motors, only use motors that freewheel the wheel itself once the motor stopsHummina Shadeeba said:How to avoid that?
amberwolf said:Hummina Shadeeba said:How to avoid that?
realistically, however, in a well-constructed motor that is not being abused beyond it's design limits of heat dissipation, or being corroded by exposure to weather/etc., the internals of the motor will never fail this way.
Hummina Shadeeba said:I’m fine just wondering if anyone has had experience w a shorting hub. It seems a hell of a risk especially on the front wheel. If a loose wire shorts to the stator or motor case and another later or w every tooth wound there’s the risk across coils. I’ve had it happen on a skate hub motor long ago and fell off. Then again maybe it’s not so bad on a bike. Even the magnet wire insulation has a rated life assuming best case scenario
that's a great way to cause exactly what you're talking about--damage to the insulation of the windings, eventually potentially causing exactly the problem you are expecting.Hummina Shadeeba said:O yea these are all thin hub motors in bikes. It is a lot of endturn sticking out. I’ve been flattening it with a press to fit the motor case.
compared to the shaping they do. If u had the ability u could shape off-the-shelf wire to match the stator for great copper fill. Maybe press it into the slot