The scope of application of micro motor
The micro motor (small and special electrical machine), is the size, capacity is small,the output power on the order of hundreds watt motor and uses the following,performance and environmental conditions require a special motor. The full name of the special micro motor, referred to as micro motor. Commonly used in control systems, detection, realize electromechanical signal or energy solution, amplification,the functions of the executive or conversion, or load for the transmission machinery,equipment can also be used as AC, DC power supply.
Micro motor in various categories, can be roughly divided into DC motor, AC motor,since the state angle motor, stepper motor, rotary transformer, shaft encoder, AC and DC motor, tachometer generator, inductosyn, linear motor, piezoelectric motor, motor units, and other special motors and other 13 categories.
The motor is reversible synchronous motor consists of a permanent magnet synchronous motor and a built-in gear box combination, with a large torque, low noise,small size, light weight, convenient use, constant speed and other advantages, but also can be used with all kinds of gear box in order to change the output speed andtorque of purpose.
Micro motor in the structure can be roughly divided into 3 categories:
1 electromagnetic type: basic composition is similar to that of ordinary motor, including a stator, rotor, an armature winding, brush and other components, but very compact structure.
2 combined type: there are two common: a combination of the above all kinds of micromotor; micro motor with a combination of electronic circuit. Such as the combination ofDC motor and sensor, X direction and Y direction linear motor combination etc..
3 non electromagnetic: structure and electromagnetic form factor, such as products made cylindrical rotary, linear products to make a square, but the internal structure ofthe working principle is different and the difference is very big.
Food machinery, textile machinery, medical devices, smart windows, monitor holder,advertising light boxes, household appliances, heating and air conditioning fan page,actuator control all the small power constant speed large torque equipment.
The main application of micro motor in 3 areas: office automation equipment,computer peripheral equipment and industrial automation equipment. Such as the disk drive, copy machines, CNC machine tools, robots are applied micro motor. The audio and video equipment. For example, in a video cassette recorder, the key componentsof micro motor is drum assembly, and is the leading axis drive, closes for tape andcassette automatic loading and important element tape tension control. The driving field cooperation without special control requirements for power movement of the mechanical load.
Various types of micro motor performance varies widely, and its performance parameters difficult to out uniform. In general, used to drive machinery focus onrunning and starting when the force and energy indicators; for power with the need to consider the output power waveform and stability; control characteristic parameters ofmicro motor is based on static and dynamic. Before the characteristic parameters of two types of electric motors and similar general.
Commonly used input and output, or the relationship between an output and anotheroutput to indicate. From the control, the static characteristic curve should be continuous, smooth, no mutation; dynamic characteristics of common frequencyresponse curve or curves to express. Frequency curve should be smooth, no sudden jump point oscillation; response curve of the rapid convergence. The output units of the input signal corresponding to the size. Commonly used than torque than the electromotive force, such that the magnification factor. Certain input conditions, the actual value and the theoretical value of the difference represents the accuracy of the output signal of the micro motor, often the size of that error. In the system, micromotor input and output impedance should be matched with the corresponding circuit to ensure the system performance and accuracy.
Controlling not only the special requirements of micro motor, micro motor driving and power of micro motor is also required. Common life, loss of efficiency, reliability and MTTF characterization parameters such as the operation reliability of micro motor.
