SD02007 High Quality 20x20x7mm axail Fan 12V 5V 2007 Mini Cooling Fan 12v dc brushless cooling portable ventilation fan
1. Specifications Subject To Change Without Notice.
2. Design and Provide products according to customer requirements.
Frame: Thermoplastic PBT UL94V-0
Impeller:Thermoplastic PBT UL94V-0
RED WIRE Positive(+)
Black Wire Negative(-)
★Operation Temperature:-20 ℃~85 ℃(Ordinary Humidity)
★StorageTemperature: -30 ℃~85 ℃(Ordinary Humidity)
Life Time: At Ambient temperature 25℃ and humidity 65%
Sleeve Bearing: 30,0000 Hours
Rifle Bearing: 40,0000 Hours
Ball Bearing: 50,0000 Hours
Fluid Dynamic Bearing:100,000 Hours
★Polarity protection: Reverse connection at the rated voltage will not cause any damage
10000000 Piece/Pieces per Month
1. Shipment: FOB Shenzhen.
2. Payment: T/T, Western Union or Paypal.
3. Lead time: 15-30 days subject to order quantity.
4. Sample lead time: 3-7 days.
In the form of rolling friction, Use sliding friction sleeve bearings, in Two ball bearings, so the friction is higher Lubricants and drag reducers are used in the sleeve.
Small, and there is no oil leakage problem.
Advantages: low noise, but long-term use due to The advantage of double ball bearing is its long life, The cause of the oil seal, the lubricating oil gradually evaporates, Suitable for fans with higher speed, the disadvantage is Need to open the oil seal and refuel the Fengze bearing capacity. The noise is slightly louder. Easy to wear. Life is lower than that of ball bearings.
Our products are widely applicable in various kinds of fields, such as Computer Case,Electric Welder，Humidifier/Air Purifier,Home Appliance, communication products, Electronic Equipment, Office Equipment, Vehichle System, Medical cosmetic Equipment, Home Theater Equipment, LED lighting Equipment, UPS Power System, intelligent bidet, Refrigeration industry and ventilation system,IT and telecom equipment,3D Printer etc…..
★ We can effect shipment by FEDEX ,DHL ,TOLL,ARAMEX,TNT,POST and EMS . The packaging is very safe and strong. Please notify us if you have any special needs.
Q1: Are you a factory or trading company ?
A1: Yes, we are the professional cooling fan factory.
Q2: What is DC Fan and AC fan?
A2: DC fan is power by DC voltage, always is 5V, 12V, 24V, 48V, 60V and 72V.
AC fan is power by AC voltage, always is 110V, 220V and 380V.
Q3: How to choose a DC fan?
|bearing type||double ball bearing|
|connector||4 pin molex 2564|
|wire||4 wires with 300mm length|
|function||FG/ RD/ PWM/ Soft Start ……|
Q4: What can I do if I can not find the suitable fan model in the fan list?
Please contact us for customized fans.
*** If you want other high performance or other reqirements, please contact me for more details, thanks.
*** For Special Cooling Fan, Such as: moistureproof, waterprrof, turbocharger, soft start, reversible, temperature control, PWM speed control, the RD alarm and the FG signal etc, please contact me freely, thanks.
DC fan operation principle:
According to Ampere’s right-hand rule, if a conductor passes a current, Zhou Huang will generate a magnetic field. If the conductor is placed in another fixed magnetic field, it will be attracted.
Force or repulsion, causing objects to move. Inside the fan blade of the DC fan, a rubber magnet filled with magnetism is attached. Surrounded by silicon steel sheets, The shaft part is wound with two sets of coils, and the Hall sensor element is used as the synchronous detection device to control the group circuit, which makes the winding shaft.
The two sets of coils work in turn. The silicon steel sheet produces different magnetic poles. This magnetic pole and the rubber magnet produce repulsive force.
When the repulsion force is greater than the static.
With friction, the fan blades rotate naturally. Since the Hall sensor element provides the synchronization signal, the fan blade can continue to operate, as for its operation.
The direction can be determined according to Fleming’s right-hand rule.