The environmental testing of permanent magnet brushless motors has always been a concern for everyone. Regarding how to test the motor and what are the testing standards, let's take a look together
The salt spray resistance performance of permanent magnet brushless motors and controllers should comply with the relevant provisions of Environmental Testing for Electrical and Electronic Products - Part 2: Ka Salt Spray Test Method.
Damp heat, permanent magnet brushless motors should be able to withstand alternating damp heat tests. After testing, it must be able to pass the voltage withstand test; After testing and inspection, there must be no rotor sticking, and the surface of the casing must be free of obvious rust and oil stains
Low temperature
Salt spray test
According to the relevant test methods in the rating and performance of rotating motors, the test results should meet the requirements of 5.12
Damp heat test
According to the damp heat test requirements for permanent magnet brushless motors used under general environmental conditions, the alternating damp heat test method is specified, with a test period of 12 cycles.
. After the test is completed, immediately measure the insulation resistance of the motor inside the box, and then perform a voltage withstand test according to 6.10. The results should be consistent with the insulation between the conductive part of the motor and the casing, which should be able to withstand a continuous withstand voltage test for 1 minute without breakdown or flashover. The test voltage value is 2UN+1000V, the minimum value is 1500VV, the test voltage frequency is 50Hz, and the waveform is an actual sine wave. The motor should be able to withstand alternating humidity and heat tests. After the test, the motor should be able to pass the voltage withstand test specified in Table 3. After testing and inspection, the rotor should not get stuck, and there should be no obvious rust or paint bubbles on the surface of the casingLow temperature test
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