The difference between an ac cooling fan and a dc cooling fan
Date:2018-11-08 Clicks:691
The difference between an ac cooling fan and a dc cooling fan
One: from voltage:
Ac voltage: 110V/220V/240V/380V
Dc voltage :5V/12V/24V/48V
2. From specifications:
Ac cooling fan: 80*80*25MM/80*80*38MM/92*92*25MM/120*120*25MM/120*120*38MM/150*50MM/172*172*51MM/220*220*60MM/
Dc cooling fan:
30 * 30 * 10 mm / 40 * 40 * 10 mm / 50 * 50 * 10 mm / 60 * 60 * 10 mm / 40 * 40 * 20 mm / 50 * 50 * 15 mm... 120 * 120 * 25 mm
3. Technical aspects:
Ac cooling fan:
The single-phase internal structure consists of two windings, one a starter winding and one a running winding, which are connected in series to each other, thus forming three points.
Usually single-phase ac motor can also be used as a running start winding winding, if switch run to start the windings (that is the power of a pick up to the public, by running the change from start the end, it is used as a running start winding winding), the machine can produce inversion, this is the only way to realize single-phase ac motor to change.
Is the difference between dc motor with ac motor is: three tributaries of motor windings, respectively around the rotor, and install a permanent magnet block on the spindle, surrounded the rotor, and don't need to start the capacitance, but need to carbon brush, change the dc motor steering method is simple, as long as change over the power input is the cathode can be achieved.
Four: from the application field:
Ac cooling fan: generally used in reindustrial machinery equipment, medical equipment and other large equipment above。Dc cooling fan: usually used in electronics and small equipment fields such as electrical appliances.