The application of DC variable frequency motors in range hoods has very obvious advantages.
It greatly enhances the range hood’s ability to absorb oil smoke, greatly increases its lifespan, and has particularly outstanding energy-saving effects.
Mainly reflected in five aspects:
1st. Stepless speed regulation
Range hoods using AC motors can generally only achieve speed adjustment in three to six gears, while DC variable frequency hood motors can achieve stepless speed adjustment between 0-2000 rpm, which is equivalent to freedom between thousands of levels.
Switching and smooth transition undoubtedly greatly increase the user’s choice and improve the user experience.
2nd. Reduce noise levels
Ordinary AC motors will emit a “buzzing” starting noise when starting, but DC variable frequency motors can prevent this phenomenon from happening in principle.
The DC motor reduces both starting noise and operating noise, greatly reducing the noise generated by the range hood motor and air duct.
3rd. Super air volume
DC variable frequency motor has the characteristics of high starting torque, strong overload capability and hard load characteristics. As shown in the range hood, the average speed, air volume and air pressure of the motor are higher than that of the AC motor.
In particular, constant air pressure can be achieved by changing the motor speed through frequency conversion, so there is no need to worry about blockage of the flue and excessive negative pressure in the public flue. situation, this is a function that AC motors cannot achieve.
4th. Energy efficient
Energy saving is one of the most important advantages of DC variable frequency motors with a bright future.
Every family uses a range hood almost every day, so DC variable frequency motors have huge promotion value in the field of household range hoods.
After actual use testing, it is concluded that under the same air volume, the motor energy efficiency of a DC variable frequency range hood is more than twice that of a variable current motor.
For example, an AC asynchronous motor requires 180W of input power, while a DC variable frequency motor only requires 80W. DC variable frequency motors are more than 50% more efficient than AC motors.
5th. Reliable and durable
The DC variable frequency motor adopts a permanent magnet structure, with less winding and low heat generation.
The weight of the motor is only 70% of that of an AC motor, and the temperature rise of the motor when running at full speed at room temperature is only 50% of that of an AC motor.
Therefore, the motor is more reliable and has a longer service life. It can operate stably for 50,000 hours under normal use.
(If it is run for 3 to 5 hours a day, it can be used normally for more than 30 years.)
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