Automotive starter motors are mainly used in fuel-efficient vehicles. AIP's starter motor tester tests the starter motor stator, rotor, and comprehensive motor.

Ⅰ. Product Overview

The starter motor is mainly a BLDC motor. This tester tests the rotor and motor of the starter motor tester.

Ⅱ. Test items

welding resistance, diagonal resistance, bar-to-bar resistance, AC hi-pot, insulation resistance, surge, power (motor)

Ⅲ. Suitable motors

This series of products is used for testing the safety and performance indicators of automotive starter motors, for testing motors before they leave the factory, and for customizing test plans based on different motor specifications.

Ⅳ. Features

■ AIP's starter motor tester can test the motor stator, armature rotor, and the motor.

①Motor stator tester: AC hi-pot, insulation, resistance, surge, and rotation

②Armature rotor tester: welding resistance, diagonal resistance, bar-to-bar resistance, AC hi-pot, insulation resistance, surge

③Motor tester: motor no-load/load performance - voltage, current, power

■ Solder resistance positioning: accurately locate the solder joints with incorrect solder resistance and display them visually with diagrams

■ Hook misalignment: Automatically detect whether the armature hook sequence is correct, and accurately indicate the number of wrong hooks in clockwise or counterclockwise order;

■ Power-on self-test: When the test system is powered on, it will automatically detect whether each functional module is normal. Abnormal modules will automatically report errors and prompts;

■ Fast data processing: The test system control core adopts an ARM high-speed processor, and the data processing is efficient and accurate;

■ Data sharing: The equipment is connected to the Internet to realize data interaction and resource sharing; it is connected to the MES system, and the test data can be automatically uploaded to the customer server. This function is optional;

■ Remote maintenance: With a built-in network module, the test system can be remotely maintained and upgraded after connecting to the network to ensure the timeliness of equipment maintenance.

Ⅴ. Automobile starting motor structure

Currently, automobile starters are mainly DC series-excited motors, which are the power output part of the starter. Its structure mainly consists of an armature rotor, stator, commutator, brushes, and other components.

1) The armature rotor is the rotating part of the DC motor. It is an iron core made of circular slotted silicon steel sheets stacked together. The grooves are wrapped with winding wires. Due to the large starting torque of the engine, the current is very large, ranging from 200 to 600 amps. The wire diameter is relatively thick, and the flat wire winding has a large current density and a high overload capacity.

2) The stator consists of an iron core fixed to the casing and a pole winding, generally consisting of two pairs of poles, and the casing together form a magnetic circuit.

3) The function of the commutator is to introduce current into the rotating stator. It is made up of many dovetail-shaped copper sheets with mica sheets sandwiched in between, and the armature winding is welded at the dovetail.

4) The brushes are pressed from copper powder and carbon powder to transfer electrical energy to the commutator. They generally contain 80%-90% copper and 10%-20% graphite to reduce the brush resistance and increase its wear resistance. Generally, the number of starter brushes is equal to the number of magnetic poles. Some high-power starter brushes have a number equal to twice the number of magnetic poles to reduce the current density of the brushes.

Ⅵ. Working principle of automobile starter

Before the automobile engine can run with its own power, it must rotate with the help of external force, that is, the participation of the starting system. The function of the starting system is to convert the electrical energy stored in the battery into mechanical energy. The power is generated by the DC motor, which drives the engine crankshaft to rotate through the transmission mechanism, thereby starting the engine. The starting system includes the following components: battery, ignition switch (starter switch), starter assembly, starter relay, etc.

Therefore, the working principle of the starter is an energy conversion process based on Ampere's law. It converts electrical energy into mechanical energy to drive the engine to operate normally.

If you are interested in our automotive starter motor tester, Please feel free to contact us.