The motor fan is a motor with fan hub and blade, and the groove is evenly distributed along the outer circumference of the fan hub. The blade is inserted into the groove and the blade and the fan hub are integrated by welding and bonding. The overall balance of the motor fan is good, can save the balance required for working hours, the weight of bolts than the fan to reduce more than 30%. The vibration and the noise of the motor of the utility model are reduced.

Although the motor fan has a high reliability, but it is still mechanical devices, in the long-term use, the speed may drop or even stop, so the best running of the fan real-time monitoring, easy to find the problem. At present, the monitoring of the fan itself has two types of alarm sensors and speed sensors, the use of alarm sensors can be less than a certain threshold when the fan alarm signal, and speed signal output can achieve real-time monitoring of fan speed The The alarm signal output from the fan circuit is "high" and "low" two states, the two levels of the general meaning of the system in accordance with the positive system, high level that "failure", "low" Said "normal". The speed signal output from the fan circuit is usually in the form of a pulse, and each wave indicates that the fan has been turned over a circle. Such a signal can be directly supplied to the host via the data bus for display. Some fan output speed signal is not the real speed of the fan, but a multiple of the speed, for example, each turn a circle to produce two, four or six veins, must be processed to form a real fan to reflect the real speed signal. To determine whether the fan speed is true speed or a multiple, you can use the tachometer to measure the actual speed, and then compare with the displayed data. The fan speed signal is generally output from the three-wire plug, the three leads in the yellow and black, respectively + 12V power and ground, another color line is the speed signal output line. It should be noted that the third lead of some three-lead fans is not the speed signal output line, but the speed control signal line, through which the fan motor input speed control signal.

Motor fan leaf specification distinction:

The motor fan blades are distinguished by the motor frame number, for example, Y series: 80,90,100,112,132,160,180,200,225,250,280.

Buy motor fan Note:

1, see random files

Motor fans are equipped with manual, product certification, electrical circuit diagram and packing list, to check the packing list, check the parts.

2, look at the motor fan shape

Carefully check the motor fan cover and fan blades for significant deformation. Turn the fan, should be light and flexible, should not always stop in the same position.

3, see start performance

Start performance is an important quality of motor fan quality indicators. When testing, in the slow speed, power supply rated voltage of 85%, the motor fan should be able to start from the static, and the normal operation of a motor fan from start to normal operation of the shorter time required, the motor fan start performance better The

4, see the speed performance

After power is applied, the fan mechanical transmission section should not have abnormal noise. Fan in high, medium and low speed operation, the motor and fan should be smooth, small vibration, low noise. Motor fan shaking his head, shut down should be agile, no intermittent, stagnation and jitter phenomenon.

5, to see if the leakage

Motor fan power, hand touch if Ma feel, test with a pen test, test pen also glow display, can determine the shell leakage, can not be.

6, to see the continuous operation of the motor fan

Fan fan running continuously for 2 hours, if the nose shell surface hot, indicating that the temperature is too high, can not be used. Under normal circumstances, the nose shell surface temperature below 50 ℃, should not have the feeling of hot. Dynamic winding, its role is when the excitation winding power, immediately produce reverse torque, so that the blade immediately stopped to improve the safety factor.

Henan Nanyang Explosion-proof Motor Co., Ltd. - Contact Information

Consultation: 15138382006

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Main Products: YBX3 explosion-proof motor, YBK3 explosion-proof motor, YBS explosion-proof motor, YBF2 explosion-proof motor, permanent magnet explosion-proof motor, permanent magnet synchronous motor, energy-saving motor