100k rpm thats only 1666 rev/sec - that does not seem super fast or anything for something so small.
It has a turbine on it - direct coupled by the look of it - I wonder if it rotates the turbine at that speed - or if it slows down as it loads up - it's seems a big turbine to be doing that sort of speed - it would move a huge amount of air at that speed.
It's hard to see from the pic - but it looks like it only has one coil on it - it needs more than one to start rotating - so maybe it does have 2 or 3.
Anyway awesome - good to see the move to brushless technology in these medium size appliances - previously the domain of the old series wound universal motor.
They have them in several airports I frequent and they are, in a word, awesome. One of those genuinely better mousetraps I wish I had thought of first.
Dyson seems to have a talent for engineering the (retrospectively) obvious. Every time I see the advert for that vacuum cleaner with the ball instead of wheels I feel like a complete idiot. His mild, avuncular gaze gently reproaches me for not solving the problem when I had so much free time available.
As others have mentioned, the AirBlade - the hand dryer that uses this motor - is awesome, and generates some serious breeze. Sadly, it's almost too smart: you use it somewhat differently than you use a normal hand dryer, and if you don't (and use it normally) you loose most of the genius of the design.
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[ 3.2 ms ] story [ 38.5 ms ] threadMore info on switched reluctance motors here: http://en.wikipedia.org/wiki/Switched_Reluctance_Motor
What is the rotor then? The wikipedia "reluctance motor" article mentions the rotor having flux barriers. Is it something like an iron daisy?
It has a turbine on it - direct coupled by the look of it - I wonder if it rotates the turbine at that speed - or if it slows down as it loads up - it's seems a big turbine to be doing that sort of speed - it would move a huge amount of air at that speed.
It's hard to see from the pic - but it looks like it only has one coil on it - it needs more than one to start rotating - so maybe it does have 2 or 3.
Anyway awesome - good to see the move to brushless technology in these medium size appliances - previously the domain of the old series wound universal motor.
They have them in several airports I frequent and they are, in a word, awesome. One of those genuinely better mousetraps I wish I had thought of first.
As others have mentioned, the AirBlade - the hand dryer that uses this motor - is awesome, and generates some serious breeze. Sadly, it's almost too smart: you use it somewhat differently than you use a normal hand dryer, and if you don't (and use it normally) you loose most of the genius of the design.