Specializing in the design and manufacture of automotive motor armatures and stators.

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Detailed explanation of the main function of an automotive armature?

Release Time:

2022-11-01

   Automotive Armature The manufacturer stated, The armature is the part of the motor that contains the coil, and the coil's relative movement to the magnetic field. In a generator, an induced electromotive force is generated in the rotating coil under force, causing it to generate electricity. In a motor, the energized coil rotates in the magnetic field under the action of Ampere's force, causing it to rotate in the magnetic field.

  A part of an alternating current generator or related equipment can be represented in either mechanical or electrical terms. Although distinctly separate, these two sets of terminology are often used interchangeably or include a combination of a mechanical term and an electrical term. This can cause confusion when using composite machines such as brushless AC generators, or when conversing between personnel accustomed to using differently configured machines.

  In most generators, the field magnet is rotating and is part of the rotor, while the armature is stationary and is part of the stator. Motors and generators can be constructed with a stationary armature and rotating magnetic field or a rotating armature and stationary magnetic field. The pole shoes of permanent magnets or electromagnets, and the moving iron part of a solenoid (especially if the latter is used as a switch or relay) can also be called an armature.

  The automotive armature's circuit equipment is simple, low-cost, and easy to operate. The disadvantages are high power loss, low efficiency, and reduced motor output. It plays a key and crucial role in the process of realizing the mutual conversion of mechanical energy and electrical energy. A square-wave self-controlled permanent magnet synchronous motor is used, with a Hall sensor replacing the carbon brush commutator, and the rotor permanent magnet material is neodymium iron boron. To our understanding, its performance has significant advantages compared to general traditional DC motors. Automotive armatures have advantages such as high efficiency, low energy consumption, low noise, long life, high reliability, servo control, stepless frequency conversion speed regulation, etc. Moreover, the brushes are removed, and the direct change is that the brushed motor will not produce sparks during operation, greatly reducing the interference of sparks on radio-controlled radio equipment. In short, an automotive armature generally refers to the part of the motor that requires an external power supply. The armature of a DC motor is the rotor, and the armature of an AC motor is the stator.

  Automotive armatures have no brushes, greatly reducing friction during operation, resulting in smooth operation and much lower noise. This advantage is a huge support for model stability. The advantages of automotive armatures also lie in the fact that wear mainly occurs on the bearings. From a mechanical point of view, brushless motors are almost maintenance-free. Only some dust removal maintenance is needed if necessary. From a mechanical point of view, automotive armatures are almost maintenance-free motors, only requiring some dust prevention maintenance when necessary. Of course, when you use them, you can compare them up and down, and you will know the advantages compared to brushed motors, but nothing is absolute. Brushed motors have excellent low-speed torque performance and high torque characteristics. Automotive armatures are irreplaceable, but in terms of ease of use, with the reduction in the cost of automotive armatures and the development and market competition of brushless technology at home and abroad, its power system is in a stage of rapid development and popularization, which has also greatly promoted the development of model sports.


Automotive armature

03-13

2023

How to properly test a starter armature? Maintenance tips for starter armatures

The starter armature is a key component in the process of converting battery energy into mechanical energy during car starting. It consists of numerous small parts. Due to its complex structure and working environment, its maintenance is relatively complex and requires correct detection to ensure its normal operation and long lifespan. I. Correct methods for detecting the starter armature 1. Check the appearance of the starter armature to ensure that its rotating parts are not worn or deformed, the cable connectors are not damaged, the terminals are not discolored, the armature insulator is not damaged, and there is no abnormal temperature rise in the armature body. 2. Use a professional testing instrument to check its internal circuit to ensure that its resistance value has not changed, the insulation is not damaged, the brush bristles are not shortened, the contact surface of the carbon brush is not discolored, and the armature structure is not deformed. 3. Based on the test results, if problems are found with the starter armature, a new armature should be replaced promptly to ensure that the car can start normally, avoid engine damage, and prevent unnecessary repair costs. II. Starter armature maintenance 1. Regularly check the starter armature, especially after the car has been parked for a long time. Check the armature status promptly, and replace it with a new one if there are any abnormalities. 2. When the car is running, regularly check the engine

03-01

2023

Get to know brushless DC motor stators and rotors in one minute

The stator and rotor of a brushless motor are components of the motor. The two components can coordinate with each other through the action of the magnetic coil to convert electromagnetic energy information into mechanical energy. Simply put, the stator and rotor of a brushless motor are the rotating parts of the motor. Brushless DC motors use semiconductor switching devices to achieve electronic commutation, i.e., electronic switching devices replace traditional contact commutators and brushes. They have advantages such as high reliability, no commutation sparks, and low mechanical noise, and are widely used in high-end tape recorders, video recorders, electronic instruments, and automated office equipment. A brushless DC motor consists of a permanent magnet rotor, a multi-pole winding stator, and a position sensor. The position sensor detects the change in rotor position and switches the current in the stator windings in a certain order (i.e., it detects the position of the rotor magnetic pole relative to the stator windings and generates a position sensing signal at a specific position. After processing by the signal conversion circuit, it controls the power switching circuit and switches the winding current according to a certain logical relationship). The working voltage of the stator winding is provided by the electronic switching circuit controlled by the position sensor output. There are three types of brushless motor stator and rotor position sensors: photoelectric, magnetoresistive, and electromagnetic. In brushless DC motors using magnetoresistive position sensors, the magnetoresistive sensor components (

02-20

2023

How to check the condition of a brushless motor stator and rotor?

The stator and rotor of a brushless motor are important components of motors such as generators and starters. The stator is an important part of the motor. The stator and rotor of a brushless motor consist of a stator core, stator windings, and a frame. The main function of the brushless motor stator and rotor is to generate a rotating magnetic field, while the main function of the rotor is to be cut by electromagnetic lines in the rotating magnetic field to generate (output) current. The rotor is the rotating part of the motor. The motor consists of a rotor and a stator, used to achieve the conversion of electrical energy and mechanical energy, as well as mechanical energy and energy conversion devices. The motor rotor system is divided into two motor rotors and generator rotors. The function of the brushless motor stator and rotor is to rotate the drive shaft and provide electrical energy and mechanical energy conversion. The stator refers to the conductor in the magnetic field, the conductor is fixed, and the rotor refers to the electromagnetic coil, which moves relative to the conductor. This relative motion causes the magnetic lines of force to be cut, thus generating current in the stator coil. The stator and rotor of a brushless motor are made of iron cores and windings, and the windings are made of silicon steel and thick copper conductors. The conductors are insulated and coated with epoxy resin. The stator and rotor of a brushless motor are equivalent to conductors, and the rotor is equivalent to an electromagnet. After the rotor is energized, it is driven to rotate by the engine to form a rotating magnetic field model. Conversely, when the conductor cuts the rotating magnetic field, an induced electromotive force will be formed in the conductor.

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