The window opener motor manufacturer shares the working principle of the motor.
An electric motor (commonly referred to as a "motor") is an electromagnetic device that performs electrical conversion or transmission according to the law of electromagnetic induction. Its main function is to serve as a power source for electrical appliances or various machines to generate driving torque. Below, the window opener motor manufacturer shares the working principle of the motor.
Release time:
2022-04-02 11:41
The motor (commonly referred to as "electric motor") is an electromagnetic device that performs electrical conversion or transmission according to the law of electromagnetic induction. Its main function is to serve as a power source for electrical appliances or various machines to generate driving torque. The following textWindow opener motorThe manufacturer shares the working principle of the motor.
The main function of a generator is to convert electrical energy into mechanical energy.
The motor mainly consists of an electromagnetic coil or distributed stator winding that generates a magnetic field, a rotating armature or rotor, and other accessories. Under the action of the rotating magnetic field of the stator winding, current flows through the squirrel cage aluminum frame of the armature, causing it to rotate under the influence of the magnetic field.
Stator (stationary part)
Stator core: serves as part of the motor's magnetic circuit, on which the stator winding is placed.
Stator winding: the electrical circuit part of the motor, generating a rotating magnetic field through three-phase alternating current.
Bracket: fixes the stator core and the front and rear end caps to support the rotor, providing protection, cooling, and other functions.
Rotor (rotating part)
Rotor core: serves as part of the motor's magnetic circuit, with the rotor winding placed in the core slots.
Rotor winding: cuts through the rotating magnetic field of the stator, detecting electromotive force and current, forming electromagnetic torque to make the motor rotate.
1. DC motor
A DC motor is a rotating motor that converts direct current energy into mechanical energy (DC motor) or converts mechanical energy into direct current energy (DC generator). It is a motor capable of converting between direct current energy and mechanical energy.
When operating with a motor, a DC motor converts electrical energy into mechanical energy. When working with a generator, the window opener motor manufacturer believes that a DC generator converts mechanical energy into electrical energy.
Schematic diagram of the physical model of a DC motor:
In the above diagram, the physical model of the DC motor also has a fixed part with magnets, called the main poles. The fixed part also has brushes. The rotating part has a ring core and a winding surrounded by the ring core. (Two small circles are set to easily indicate the conductor potential or current direction at that position.)
2. Stepper motor.
A stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement.
If there is no overload, the motor's speed and stopping position are not affected by load changes, but only depend on the frequency and number of pulse signals. After receiving the pulse signal, the stepper driver drives the stepper motor to rotate at a fixed angle in the set direction.
To achieve precise positioning, the angle displacement can be controlled by the number of pulses. In additionWindow opener motorThe manufacturer believes that by controlling the pulse frequency, the speed and acceleration of the motor's rotation can be controlled, thus controlling the speed.
Working principle of the stepper motor:
When current flows through the stator winding, the stator winding generates a vector magnetic field. This magnetic field causes the rotor to rotate by an angle, aligning the direction of a pair of magnetic fields of the rotor with the direction of the stator's magnetic field.
When the vector magnetic field of the stator rotates by an angle, the rotor also rotates by an angle along the magnetic field. Each time an electrical pulse is input, the motor will advance further before rotating by an angle.
Its output angular displacement is proportional to the number of input pulses, and the speed is proportional to the pulse frequency. If the order of energizing the windings is changed, the motor will reverse. Therefore, the window opener motor manufacturer believes that to control the rotation of the stepper motor, the number of pulses, frequency, and the energizing order of each phase winding of the motor can be controlled.
3. Unidirectional asynchronous motor
An asynchronous motor, also known as an induction motor, is an AC motor that generates electromagnetic torque through the interaction of the air gap rotating magnetic field and the induced current in the rotor winding, converting mechanical energy into mechanical energy.
Working principle of a single-phase asynchronous motor:
In an AC motor, when the stator winding is energized by alternating current, it establishes armature magnetic force,Window opener motorThe manufacturer believes this has a significant impact on the motor's energy conversion and operational performance.
Therefore, the single-phase AC winding penetrates the single-phase AC, generating pulsating force, which can be decomposed into the sum of two rotating magnetic fields of equal magnitude and opposite speed, thus generating a stationary and reversing magnetic field in the air gap.
These two rotating magnetic fields cut through the rotor conductors, generating induced electromotive force and induced current in the rotor conductors.
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Email: sunweihong@silentgear.cn
Factory Address: No. 15, Century Road, Baihao Industrial Zone, Houjie Town, Dongguan City, Guangdong Province
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