Miniature centrifugal cooling radiator cooling fan manufacturer to tell you what is the difference between the fan and shaft diaspora hot fan
one, on the principle of different
1. Principle of centrifugal fan, axial airflow into the rotating blades, under the action of centrifugal force was thrown to the impeller outer edge and the outlet.
2. Axial flow fan principle: gas axial into rotary vane axial discharge from the other side again after be pressurized.
2, the structure of different
1, the micro cooling fan manufacturer to tell you general by centrifugal fan impeller, casing, current collector, motor and transmission parts ( As the main shaft, pulley, bearings, triangle, etc. ) Composition. Impeller by roulette, ( Leaf number for 8 ~ 16) commonly , wheel cover, shaft plate. Chassis consists of cochlear plate, side panel and leg. Centrifugal fan blade forward or backward of blade can be used to adapt to the requirement of air volume air pressure. And noise elimination, ark can do on the noise index has obvious benefit. Motor and fan is generally through shaft connection.
2, micro axial flow fan cooling fan manufacturer told you generally consist of impeller, casing, current collector and motor, impeller composed of blade and hub, chassis consists of ram, frame plate and the support. Axial flow fan blade diameter is confined to the diameter of the shell. General motor in the fan.
3, air volume and air pressure difference
1, the micro cooling fan manufacturer to tell you the centrifugal fan with high pressure coefficient, the relatively low flow coefficient, according to the high and low pressure can be divided into high pressure ( 15000～3000Pa) , medium voltage ( 3000～1000Pa) And low pressure ( < 1000Pa) 。
2, axial flow fan with low pressure flow characteristics of the high and low pressure are divided into high pressure ( 500～5000Pa) And low pressure ( < 500Pa) 。 Low pressure ventilation is used mainly for general use.
4, degree of difficulty to install different
the micro cooling fan manufacturer to tell you the centrifugal fan inlet and outlet is often installed in air conditioning, boiler, fan and so on location, installation is more complex, axial flow fan is often installed in the duct in the middle, or duct export front end.