Hair Dryer Motor 110-220V 100000RPM 90W For Home Appliance KG-2929DC22

Hair Dryer Motor 110-220V 100000RPM 90W For Home Appliance KG-2929DC22

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Product Description
 

Essential details

Efficiency: IE 4

Warranty: 3 Years

Model Number: KG-2929DC22

Rated Voltage: 110-220V

Rated Speed: 100000RPM

Rated Power: 90W

Continuous Current: Customizable

Place of Origin: Guangdong, China

Type: Brushless DC Motor

Application: Hair dryer

Air Pressue: 120g

Rated Torque: Customizable

Drawing

Sample

Application

Motors can be constructed in several different physical configurations. In the conventional (also known as inrunner) configuration, the permanent magnets are part of the radially center core. In the outrunner (or external-rotor) configuration, the radial-relationship between the coils and magnets is reversed. The stator coils in the outrunner configuration form the center core of the motor, while the permanent magnets spin within an overhanging rotor which surrounds the core.

Torque or Commutation Loop The torque loop is used for sensorless applications to control the current through the motor. The torque is related to the current and therefore this feedback measures the current. A sense resistor measures the voltage and current sense amplifier senses the current and sends the signal to the ADC which digitizes the current and sends it to the controller. Measuring the motor current is often used as a safety feature. In case the motor is in a stalled position, the current increases dramatically. Because of this exceptional increase in current, the ADC values reach a current-limit level that causes the system to shut down.

Working of the BLDC Motor

The starting-current setup in the circuit through the stator windings sets up a magnetomotive force (mmf) which is perpendicular to the main mmf set up by the permanent magnet. According to Fleming’s left-hand rule, a force is experienced by the armature conductors. As the armature conductors are in the stator, a reactive force develops a torque in the rotor. When this torque is more than the load torque and frictional torque, the motor begins rotating.

The process of removing current from one circuit and giving it to another circuit is known as commutation.

The phase current and developed torque in the Brushless DC Motor. In every case there are two phases that are contributing to positive torque and one phase contributing to zero torque. If the torque of each commutation interval is combined, the total torque is a contribution of two torques from two phases that are perfectly flat.