Tower Fan Motor Manufacturers

Tower fan motor: Do you need to know these key information?

I. What is the core function of the tower fan motor?

The tower fan motor is the core power device for the operation of the tower fan. Its main function is to convert electrical energy into mechanical energy, drive the fan blades or crossflow impeller to rotate, thereby promoting air flow to form wind. At the same time, it also adjusts the wind speed by cooperating with the speed regulating mechanism (such as low, medium and high three-speed wind speed), and drives the swing head mechanism to complete the left and right shaking action in some models to expand the air supply range.

II. What are the common types of tower fan motors?

The types of tower fan motors are mainly divided according to the power supply mode and structural characteristics:
AC asynchronous motor:
Features: It is powered by AC power, has a simple structure and low cost, and is a common motor type for early tower fans. However, the speed adjustment is mostly gear-type (such as 3-5 gears), the speed regulation accuracy is limited, and the noise is relatively high during operation.
Brushless DC motor (BLDC):
Features: It needs to be used with a DC power supply (converting AC power into DC power through an adapter), has a wider speed adjustment range (can achieve stepless speed regulation), has energy consumption about 30%-50% lower than AC motors, has lower operating noise (some models are as low as 30 decibels or less), and has a longer lifespan (usually up to 8000-10000 hours).
Applicable scenarios: mid-to-high-end tower fans, especially suitable for home or office environments with high requirements for quietness and energy saving.

III. What is the impact of the power of tower fan motors on use?

The power of tower fan motors is usually between 20-60W, and the power directly affects the air supply effect and energy consumption:
Low power (20-30W): Suitable for small spaces (such as bedrooms and study rooms), soft air supply, low energy consumption, but weak wind force, and limited air supply effect over long distances.
Large power (40-60W): suitable for large spaces such as living rooms and offices, with strong wind and long air supply distance (some can reach 8-10 meters), but relatively high energy consumption, and slightly louder noise during operation.

IV. What is the relationship between the speed of tower fan motor and wind speed?

Motor speed is the core factor that determines wind speed, and the two are positively correlated:
The higher the speed, the faster the frequency of the fan blades or crossflow impeller cutting the air, the more air is pushed per unit time, and the greater the wind speed.
Most AC motors have fixed gear speeds (such as low gear about 800-1200 rpm, high gear about 1500-2000 rpm), and the corresponding wind speeds are significantly different; DC brushless motors can achieve continuous speed adjustment (such as 500-2500 rpm), and the wind speed can also transition smoothly, avoiding the "wind speed jump" feeling of gear-type speed regulation.

V. Why does the tower fan motor make noise? How to reduce noise?

The noise of the tower fan motor during operation mainly comes from the following reasons, which can be reduced in a targeted manner:
Mechanical friction: Wear or lack of oil in the motor bearing will cause abnormal noise during rotation. Regularly adding lubricating oil (such as special motor grease) to the bearing can alleviate it; if the bearing is severely worn, a new bearing needs to be replaced.
Resonance: The motor and the tower fan housing are loosely fixed, and resonance noise will be generated during operation. Check and tighten the fixing screws to solve it.
Motor characteristics: Due to structural limitations, the electromagnetic noise of AC motors is more obvious when running at high speeds; tower fans with DC brushless motors have better noise control, especially at low wind speeds, there is almost no obvious sound.

VI. How to judge whether the tower fan motor is faulty?

The tower fan motor failure can be judged by the following phenomena:
The motor does not start: the fan blades do not respond after the power is turned on. It may be that the motor winding is burned (use a multimeter to detect the resistance, if it is 0 or infinite, it is a fault), the capacitor is damaged (common in AC motors, the capacitor is bulging or the capacity is insufficient), and the control board is faulty (no voltage is output to the motor).
Abnormal noise during operation: In addition to the normal wind sound, if there is a "buzzing" electromagnetic noise (possibly a winding short circuit), a "creaking" friction sound (bearing wear) or a "stuck" feeling (rotor stuck), it may be a motor failure.
Abnormal wind speed: The wind speed does not change after the gear is adjusted (the AC motor may be due to a damaged speed switch), or the wind speed fluctuates (the DC motor may be due to a controller failure).

VII. How to extend the life of the tower fan motor in daily use?

Avoid overload operation: Do not cover the tower fan air inlet with clothing, curtains and other items to prevent the wind wheel from being blocked and causing the motor to stall. Long-term overload will burn the winding.
Regular cleaning and maintenance: Remove the front mesh cover every 2-3 months, clean the dust on the surface of the wind wheel and the motor (you can use a soft brush or vacuum cleaner) to prevent dust accumulation from affecting heat dissipation (motor overheating will shorten the life).
Reasonable storage: When not in use during the season change, clean the tower fan and place it in a dry and ventilated place to avoid short circuit of the motor winding caused by moisture in a humid environment; it can be idling for 10 minutes before storage to ensure that the motor is dry inside.
Control the use time: continuous operation should not exceed 8 hours, especially in hot weather, let the motor rest intermittently to reduce overheating loss.

VIII. When purchasing a tower fan, what aspects of motor performance should be focused on?

Type selection: DC brushless motors are preferred. Although the price is 10%-20% higher than that of AC motors, they are energy-saving, quiet, and have a long life, making long-term use more cost-effective.
Speed ​​adjustment: Choose a model that supports stepless speed regulation (mostly DC motors), which can more accurately match the needs of different scenarios (such as a breeze for sleeping at night and a strong wind for cooling off during the day).
Protection level: The motor part must have basic dustproof capabilities (at least IP20) to prevent dust from entering the interior and affecting operation; some high-end models use sealed motors for better dust and moisture resistance.
Heat dissipation design: Check whether the motor has independent heat dissipation holes or heat sinks. Good heat dissipation can ensure stable operation of the motor at high temperatures and reduce the probability of failure.