Dc cooling fans specialized terminology

Dc cooling fans, ac cooling fans, cross flow cooling fan, CPU cooling fans, computer cooling fan, fan parameters:

  1. Nominal voltage:Fan is running under the rated voltage, voltage is generally common dc fan for 5 v, 12 v, 24 v, 48 v, etc. Specifications.
  2. The fan size:Mainly refers to the size of the fan, the general said to fan the outside length and thickness of the product size, the unit is mm. Of the specifications of the fan model named often for size number, such as: DC8025, 8025 of which represents the size of the product specifications.
  3. The fan speed:Fan rotational speed, the unit for the RPM (revolutions per minute), and this is the fan is a relatively important parameters, high speed that can lead to big air volume, manufacturers often use product standardization, divided into ultra-high (U), high (H), (M), low (L), such as speed of products, for users to choose to use according to their own situation.
  4. Air quantity:To measure the ability of a fan a quantitative indicators, the unit of cubic feet per minute (CFM).
  5. Wind pressure:To overcome the wind resistance ability.The index directly affects the effect of ventilation, or cooling, the unit is mm – H2O.
  6. Noise level:Is an important parameter, although has nothing to do with the ventilation and heat dissipation effect, but the use of different environments will require very high, the unit is the dBA (db).

Dc cooling fans other configuration:

  1. Shaft bearing system:This configuration is the soul of the fan components, direct relationship between the product using mechanical life. Often divided into ball bearing and oil bearing.
  2. Joint:Is a fan of the more important detail parts, easily ignored by people, often divided into gratuitous, 2 p, 3 p, 4 p and so on.