【 Ac fan 220 v - 230v】 The principle and the related performance analysis
【 Ac fan 220 v - 230v】 The principle and the related performance analysis of
the difference between the AC fan and DC fan. The former power supply for communication, power supply voltage will be positive and negative alternating, unlike DC fan power supply voltage is fixed, xu will depend on the control circuits, the two groups work can produce different magnetic field coil in turn. Due to the power frequency fixed AC fan, silicon steel sheet produced by pole change speed, decided by the power frequency, the higher the frequency of magnetic switch, the faster speed will be faster in theory, like the more the more the number of dc fan speed fast principle. Frequency, however, cannot too fast, too fast will lead to activate the difficulties.
the temperature and air flow, by Charles law knowledge, when pressure is fixed, V1 / T1 / T2 = V2, so the higher the temperature the more air volume, weight and density, so the fan wind resistance is small, under the condition of same consumed power, air volume increase.
humidity and air velocity, air humidity, the water more, because the proportion of water die than air humidity, the higher the air more heavy, the air volume less natural.
rubber magnet magnetization intensity and volume: rubber magnet magnetization is larger, stronger denounced suction speed is accelerated, air volume is higher.
link:
waterproof ac fan of http:///products- 细节。 asp吗? Cpid = 75
high temperature fan http:///products- communication 细节。 asp吗? cpid = 80
