Gear motor，It is not difficult to find that the rapid development of magnetic sensor .
The number of magnetic sensor manufacturers in the international and domestic market is increasing rapidly.
It has been widely used in aerospace, automobile, industry, consumption and many other fields. According to Shi Yunbo, magnetic sensor is an important part of sensor products. The automotive sector accounts for more than 70 percent of the magnetic sensing applications market. Deceleration motor is mainly used in vehicle speed, dip Angle, Angle, distance, proximity, position and other parameters detection and navigation, positioning and other applications, such as speed measurement, pedal position, transmission position, motor rotation, power torque measurement, crankshaft position, dip measurement, electronic navigation, anti-lock detection, parking positioning and so on.
The principle of single-phase speed regulating gear motor
Clutch active rotor 1 and motor 5 is rigidly connected. The active rotor (armature) is a steel cup-shaped cylinder, and the driven rotor (claw pole) is fixed to the driven shaft by claw pole 2, with an air gap between them. The middle of the claw pole is surrounded by an exciting coil 4, which is excited by DC power supply. The two ends of the iron core are crossed into a claw shape, forming an alternating claw pole structure of N and S. The magnetic circuit is: N claw pole an air gap an armature air gap an S claw pole a driven rotor iron choke a N claw pole. When the motor drives the active rotor to rotate, the armature cuts the claw pole magnetic field to produce eddy current, which interacts with the claw pole magnetic field to produce torque, so that the driven rotor rotates with the active rotor in the same direction, the speed is lower than the active rotor speed, that is, there is a revolution. If the excitation current is large, the magnetic flux intensity of the active and driven rotor is connected, and the rotation difference is small, and the clutch output speed is high.
Advantages of single-phase speed regulating gear motor
Simple structure, reliable operation, smooth speed. Disadvantages: Electromagnetic torque is transmitted by the eddy current of the steel cylinder, so the eddy current loss is large and the efficiency is low.
