Preparation for electric vehicle motor testing

Electric motor motors need to be tested for performance and other aspects before leaving the factory to ensure that the motor is a qualified product without problems. However, before doing the inspection work, you must do some preparatory work to ensure the accuracy of the motor test results, etc. What preparations can be made before the test is performed? Let me introduce you here.

 

1, commonly used tools

 

First of all, we should prepare some common and indispensable repair tools. When disassembling the electric vehicle motor, we must prepare an aluminum alloy (or copper) flat shovel, disassemble the motor cover, and use a tool softer than the motor casing to prevent the motor from being damaged. shell.

 

2, the shaft puller

 

It is a tool for removing a shaft or a bearing, also known as a puller.

 

3, equipment

 

Multimeter (50mf class), 50v voltmeter, 10a ammeter, open transformer, tachometer, torque sensor or electric vehicle motor detector, adjustable power box, etc.

 

4, reference configuration of the instrument

 

Such as winding inter-turn voltage tester, short-circuit tester, coil lap measuring instrument, armature detector and so on. The electric motor motor speed is often mastered when inspecting the motor. The tachometer has contact and non-contact type. Contact tachometers are not suitable for hub motor testing. Non-contact, conditional ones can be used to purchase a non-contact high-precision laser tachometer.

 

Therefore, before testing the electric motor motor, all of the above work must be prepared in advance, so as to avoid the occurrence of detection failure during the detection process due to insufficient preparation, and the inaccurate detection results. At the same time, Xiaobian also reminds everyone that after the purchase of the motor, it is more appropriate to test the motor according to its own conditions.