External rotor motors — also called cup motors — are brushless dc motors that differ from traditional motor designs employing permanent magnets. They excel in driving an array of blower and fan applications.The blower uses a small but powerful motor as the engine of the assembly. The motor is usually either the brushed or brushless. Brushed motors are a traditional design and mostly found in the blower assemblies of older cars.
Is a blower motor a fan motor?
Also known as a blower motor, a blower fan is a type of fan that's found in the air handling unit (AHU) or near the furnace. The AHU or furnace typically features a blower fan, air filter and an evaporator coil.
Which motor is used for fans and blowers?
For the most part, an industrial blower fan will use one of two types of motors: direct drive and drive belt.
What are the 2 types of blower motor?
There are two main types of blower motors: single-speed motors and variable-speed motors. Single-speed blower motors blow air at one speed. Variable-speed motors adjust their speed to blow air at varying speed levels. A properly functioning blower motor remains a critical component of your home's HVAC system.
Is a car blower motor AC or DC?
What type of motor is the car blower motor? The HVAC blower motor in your car is either a brushed or brushless, DC (direct current) motor. The brushless types are common in news car models and the brushed versions older automobiles. Rated 12 volts, the motor runs off the car's electric system.
What is a blower motor on a car?
The blower motor is the electric device that pushes heated or cooled air into the cabin. It forms part of a vehicle’s HVAC system. When switched on, the blower ensures a constant supply of conditioned air via the vents on the dashboard. The blower is usually a motor and fan assembly fitted with electrical connections.
What is the difference between a condenser fan and blower motor?
Unlike the condenser fan motor, the blower motor is located indoors. It’s the component that blows cool air through the ducts and into different parts of your home. So it’s essentially your air mover. There are basically two kinds of blower motors: single-speed blower motors and variable-speed blower motors.
How is the speed of the blower motor controlled?
In older cars, the blower speed is controlled by a resistor module. Newer cars have the speed controlled by an electronic component called blower motor control module. The module contains clever electronics to vary the voltage supplied to the motor. The module offers a more efficient way to vary the motor speed.
What kind of blower motor do I need for an electric furnace?
Just remember that electric heat furnaces us 230-volt blower motors (in contrast, gas furnaces use 115-volt motors) and you’re good to go! The ECM motor is a blower motor with an electronic control module mounted on the end. These motors are special; some must be set up at the supply house with special programming.
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