Brushless Fan

40*40*20， Sleeve/Ball bearing， 5V/12V/24V mini DC Fan， Speed can reach 7500RPM.This product is made of various parts， raw material is plastic， the shape is strong four corners， there are three different kinds of bearings to choose from.Environmental protection materials， a wide range of uses is its advantage. The product could be used in devices in hot medical fields， such as atomizers. It’s a hot seller recently.

Fan Tips:

A set of methods to make you a master at solving the problem of electric fans not turning

No matter at home or in the office, the use of cooling fans is still very common. However, the common fault that is easy to occur in household electric fans is that it does not turn. When the electric fan does not turn, how do you troubleshoot such problems.

There are several possibilities for the electric fan not turning:

1. It is also possible that the electric fan has been used for a long time, and the motor has been worn out. Once the coupling of the motor is damaged, it is easy to burn out. If the motor is used for a long time, the internal resistance of the motor will increase, and the working capacity under load will decrease, making it impossible to drive the fan blades to rotate.

2. If the electric fan does not rotate, it may be that the starting time is too long, causing the motor of the electric fan to overheat. This will also cause the motor’s ability to work with load to decrease, and the power factor of the motor will drop to the bottom, making it impossible to drive the load.

3. The electric fan is a small electrical appliance belonging to the home, and we usually lack maintenance for it. In many cases, the reason why the fan blades do not rotate is the problem of poor maintenance. If the fan blades are difficult to rotate after a power failure, some lubricating grease should be dripped on the transmission shaft to make it moist, so that it is not easy to damage the subjective factors and drag the fan blades.

4. In many cases, when people find that the electric fan does not turn, the first thing that comes to mind should be the lubrication problem of the motor. Generally, the main performance is that the motor cannot be dragged when the fan blade is installed on it, but after the fan blade is removed, the rotating shaft can run normally. Indicates that the motor is not damaged.

Electric fan does not turn overhaul method:

1. The fan does not turn due to poor maintenance. The solution is very simple, that is, drip grease into the rotating shaft to let it be lubricated, so that it will not affect the subjective factors to drag the fan blades.

2. If the electric fan does not turn due to damage, the easiest way to repair is to replace the parts, the coupling, which is easy to burn out after damage.

3. If the electric fan does not turn because the volume of the capacitor shrinks, we can remove the capacitor and replace it with a new one. However it is recommended to choose a capacitor that is 20% larger than the original capacitor, there will be a stronger rotation effect.

4. If the fan does not turn due to the large radial clearance of the drive shaft, we can choose to disassemble the motor and adjust the gasket for maintenance. Regardless of whether you pay attention to the fact that the motor rotor must be on the same boat as the rolling bearing, the top angle of the lubricating screw is gradually tightened, and then the drive shaft is tapped with a wooden handle to ensure that it is on the same boat.

5. If it is a common failure of electrical equipment, first check the various routes. If the cable is damaged, etc., it will be difficult to repair.