【 48 v dc fan wholesale 】 The speed of principle

Wholesale 48 v dc fan speed is refers to the number of the fan blade rotation per minute, the unit is the RPM. Dc fan speed by the motor coil number of turns of the fan blades, work voltage, number, Angle and height, diameter and bearing system common decision. Speed and quality of the fan not necessarily linked. Wholesale 48 v dc fan rotation speed can be through the internal rotational speed signal measurement, but can be by external measurements.
as the application situation and the change of environmental temperature, sometimes need different speed of 48 v dc fan wholesale to meet demand. Some vendors specially designed adjustable fan speed of cooling fan, move and break up two automatically. Mainly is to let users can manually using low speed to obtain low noise in the winter, summer with high speed to obtain good heat dissipation effect.
automatic temperature radiator with a temperature sensor, according to the current working temperature automatic control fan speed, high temperature, improve the speed, low temperature, lower speed, to achieve a dynamic balance, and keep the wind noise and heat dissipation effect a zui combining site.

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car fan manufacturer 细节。 asp吗? Cpid = 61
auto cooling fan of http:///products- 细节。 asp吗? cpid = 62