I get that DC fans use less electricity but that’s the only merit? How much less electricity does it really use to justify such high price for damn fan?!
The main difference is the construction. (Brushed) DC motors, the wire coil or solenoid is attached to the shaft and rotates while the magnets are static. AC fans the magnet rotates while the solenoid is fixed to the motor housing. DC motors can have variable speeds while AC motors can only have “stepped” variable speeds. I am not sure which one is more efficient though. A DC motor may be more expensive because it may have more complex parts, particularly brushless ones which even require some kind of a control circuitry as well.
I’ve “heard” DC fans are quieter, can’t confirm from experience though.
I highly doubt that DC fans save electricity. Efficiency-wise, BLDC motor (usual DC motor for fan) and Induction motor (AC) have nearly same efficiency. But BLDC motor requires electronic control circuit. Even the old brush-commutator DC motors requires electronic control circuit. AC motors don’t need them. The control circuit in DC fan may cause some increase in price but it should not be too much.
And also DC , direct current is more energy efficient, and thanks to variable speed is more « gentle » on motor (fan, elevator, escalator) meaning longer life. Taking a a DC motor is a no brainer. Worth the price Use kakaku.com to fund best price
The price is basically the same tho from what I saw? Some brands just advertise dc, some don’t.
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Well for one thing, power consumption = heat.
What are these DC fans you’re referring to?
The main difference is the construction. (Brushed) DC motors, the wire coil or solenoid is attached to the shaft and rotates while the magnets are static. AC fans the magnet rotates while the solenoid is fixed to the motor housing. DC motors can have variable speeds while AC motors can only have “stepped” variable speeds. I am not sure which one is more efficient though. A DC motor may be more expensive because it may have more complex parts, particularly brushless ones which even require some kind of a control circuitry as well.
I’ve “heard” DC fans are quieter, can’t confirm from experience though.
I highly doubt that DC fans save electricity. Efficiency-wise, BLDC motor (usual DC motor for fan) and Induction motor (AC) have nearly same efficiency. But BLDC motor requires electronic control circuit. Even the old brush-commutator DC motors requires electronic control circuit. AC motors don’t need them. The control circuit in DC fan may cause some increase in price but it should not be too much.
And also DC , direct current is more energy efficient, and thanks to variable speed is more « gentle » on motor (fan, elevator, escalator) meaning longer life.
Taking a a DC motor is a no brainer.
Worth the price
Use kakaku.com to fund best price
The price is basically the same tho from what I saw? Some brands just advertise dc, some don’t.