The principle of stator vacuum test is the basis of the research and development of AIP stator vacuum tester.

The principle of stator vacuum test theory is Paschen's law: electrons are more active in a vacuum negative pressure environment, and more easily ionized.

April 19, 2023

Stator vacuum test principle

The motor stator is an important part of motors such as generators and starters and is mainly composed of three parts: iron core, winding, and frame. The quality of the stator directly determines the performance of the motor, so the motor stator test is a necessary process before the motor leaves the factory.

Motor stator

1. Stator vacuum test principle

The conventional stator test does not have too many requirements on the atmospheric pressure during the test process, but under this condition, it is difficult to effectively detect defective motor products with only small damage. In order to solve this problem, the stator vacuum tester is developed and produced by AIP.

Stator vacuum test principle theory is Paschen's law: electrons are more active and more easily ionized in a vacuum negative pressure environment. Based on this theory, the motor vacuum test equipment uses vacuum negative pressure technology to place the stator in a vacuum environment. The degree of vacuum can be independently set from 0 to -99KPa according to the specific product so that the measured stator is in a negative pressure environment. In this environment, the coils in defective stator products are more likely to be released, resulting in ionization reactions, which are easier to detect and improve the quality of defective products. detection rate.

The tooling of motor tester

2. The development of stator vacuum test

According to the above stator vacuum test principle, our company launched the stator vacuum tester in 2011, which is suitable for motor stator vacuum surge tests and other electrical performance tests, and is used for motor stator tests in household appliances such as refrigerators and air conditioners, compressors, and automobiles. Vacuum testing equipment is also commonly used in brushless motor stator testing. After more than ten years of daily use by customers, the technology center has continuously optimized and upgraded the product. So far, the stator vacuum test equipment is the sixth generation, and the overall performance has been greatly improved. It is compatible with withstand voltage, insulation, surge, resistance, steering, etc. Test items support intelligent self-inspection, remote fault diagnosis, and online software upgrade, each function board is independent of each others, easy to disassemble and replace, completes all performance tests in one stop, takes customer needs as the research and development direction, helps customers improve product testing efficiency and delivery quality,

AIP never stops moving forward. Before 2018, the more effective detection method for single-point or multi-point damage to the enameled wire of the motor stator coil was the salt water test, but its destructive and inefficient limitations have always plagued motor manufacturers. Finally, in 2018, a brand-new motor single-point damage test system was launched, which can meet various motor stator tests, and can also be applied to motor stator vacuum test equipment to ensure that the test process does not damage the motor, and realizes mass production of motor assembly lines. The loss of motor manufacturers has been reduced to the greatest extent, and it has been recognized by many customers.

Stator vacuum tester

AIP has been established for more than 30 years, and has always adhered to the corporate philosophy of being "customer-centered, striving-oriented", constantly improving motor testing solutions according to customer needs and industry needs, and is willing to become a "world creation base" for China Escort!

This article was originally written by AIP , which focuses on global motor testing, all rights reserved, and infringement must be investigated, please indicate the source for reprinting