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

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

Release Time:

2023-03-13

   Starter armature It is a key component in the process of converting battery energy into mechanical energy during car starting, and it is composed of many small parts. Due to its complex structure and working environment, its maintenance work is relatively complex, and correct detection must be ensured to guarantee its normal operation and long life.

  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 the armature body does not have abnormal temperature rise, etc.

  2. Use a professional testing instrument to test its internal circuit to ensure that its resistance value has not changed, the insulation has not been damaged, the brush bristle length has not been shortened, the brush contact surface has not been discolored, and the armature structure has not been deformed, etc.

  3. According to the test results, if any problems are found with the starter armature, a new armature should be replaced in time to ensure that the car can start normally, while avoiding engine damage and unnecessary loss of repair costs.

  II. Starter armature maintenance

  1. Regularly check the starter armature, especially after long-term parking of the car, the armature status should be checked in time, and if there are any abnormalities, a new armature should be replaced in time.

  2. When the car is running, the engine should be checked regularly. Diesel vehicles should pay attention to checking the fuel system to ensure that the engine is working normally, so as not to affect the service life of the starter armature.

  3. If an engine malfunction occurs during the driving process, the car should be stopped in a safe place as soon as possible to avoid the engine from stopping, which is not conducive to the normal use of the armature.

  4. Avoid unnecessary disassembly of the armature to prevent damage to the armature components.

  5. Regularly inspect the car, check the engine condition, ensure the normal operation of the armature, and maintain the normal use condition of the armature.

  The starter armature is a key component in the car starting process. Correct detection and maintenance are the key to ensuring its normal operation. Correct detection and maintenance are required to ensure its normal operation and avoid unnecessary losses.

  1. Testing the starter armature

  Before testing the starter armature, the engine circuit board should be tested first to ensure that it is intact, so that it can be determined whether there is a short circuit. Secondly, the internal wiring of the engine should be tested to ensure that there is no damage, so as to ensure the normal operation of the armature. Finally, the insulation of the engine armature should be tested to ensure that the armature has not been burned out, ensuring the normal operation of the armature.

  2. Maintenance of the starter armature

  The maintenance of the starter armature can be divided into the following aspects: First, when repairing, the engine circuit board should be checked to ensure that the circuit board is intact; secondly, the internal wiring of the engine should be checked to ensure that there is no damage; finally, the insulation of the engine armature should be checked to ensure that the armature has not been burned out. If the engine armature is found to be damaged, insulating material can be used to repair it.

  3. Installation of the starter armature

  The installation of the starter armature needs to be carried out according to certain steps. First, the armature should be installed on the engine, and ensure that they are in full contact to ensure the normal operation of the armature; secondly, before installing the armature, the wiring on the armature should be connected to the engine to ensure the correct installation of the armature; finally, after the installation is completed, the connection of the armature should be checked to ensure the normal operation of the armature.

  4. Replacing the starter armature

  If the starter armature is found to be damaged, a new armature can be used for replacement. First, the damaged armature should be removed, and then the new armature should be installed on the engine; secondly, before installing the new armature, the wiring on the armature should be checked to ensure that they are in full contact; finally, after the installation is completed, the connection of the armature should be checked to ensure the normal operation of the armature.


Starter armature

09-13

2022

Methods for winding the armature of a DC brushless automotive motor

The method for winding the armature winding of a DC brushless car motor is to leave a section of the cable end free and tie it tightly to the shaft. Hold the car armature with one hand, and wind the coil inductance clockwise with the other hand. Taking a five-slot armature as an example, the first coil is 1-5, the second coil is 2-6, then 3-7..., and so on. The sides of many components are on the next layer. The 5-9 components have one side on the next layer and the other side on the top layer. The sides of many components are on the top layer. In order to ensure the insulation between the top layer and the next layer components, it is advisable to place 0.1-0.15mm thick insulating paper pads in between. When the coil inductance in the slot reaches a certain level, a crossbar is needed to make it reach the bottom of the slot. When winding the coil inductance, the wire should be tightened first. Whether in the slot or the wire connection part, it is necessary to prevent the occurrence of crossed turns to prevent excessive space occupation and short circuit between turns due to partial stress of the wire. After all the windings are wound, the wire ends of the same winding component are bundled together, then the insulation layer of the wire connector is removed, different color waterproof sleeves are used, and they are embedded in the corresponding commutator segments. The important role of the armature in a DC brushless motor: DC motor,

08-22

2022

Design rules for automotive armatures

Automotive armature manufacturers indicate that single-layer windings are not suitable for large-capacity motors, and small-capacity motors should not be double-layered. The magnetic flux density of the motor core should not be too high or too low. When the frequency and thickness of the silicon steel sheet core material are constant, the iron loss depends on the magnetic flux density. If the magnetic flux density is too high, the iron loss increases, and the motor efficiency decreases. The increased heat from the iron core increases the motor temperature, and the increased excitation power increases the motor power factor, so the magnetic flux density of the core should not be too high. Try to avoid excessive saturation of the magnetization curve. If the magnetic density is too low, it will increase the amount of motor material used, increasing the cost. The rotor teeth are narrow, the magnetic density is high, the slot entry wire is large, that is, the automotive armature slots are large. Automotive armature manufacturers indicate that due to poor air conduction, there are many gaps in the slots, affecting the coils and easily damaging the heat dissipation of the insulation material, accelerating the increase in motor temperature. The slot fill factor of the motor slots cannot be too high or too low. Usually, the slot fill factor for low-speed motors is 75% to 85%, which can effectively prevent the enamelled wire from loosening in the slots. The design of the motor rotor slot shape should use parallel trapezoidal recesses as much as possible, and the edges of the recesses should not have sharp corners. Try to use a circular bottom recess, because the circular slot is filled with aluminum, which is easy to injection mold and the stator chip is easy to insert. The coil current density should not be...

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