Rotor magnetism detection method

Abstract

The present invention provides a rotor magnetism detection method. A magnetized rotor is rotated by a rotating device, so as to generate an induced electromotive force by the magnetized rotor and an induction coil. The induced electromotive force and the preset electromotive force value range in a controller are automatically compared, and it is automatically determined whether rotor magnetization satisfies the requirement. This detection method is simple and quick and is suitable for batch detection. In addition, with high detection accuracy rate, the rotor magnetism detection method of the invention overcomes the defect of complex rotor magnetization detection of the prior art and increases the rate of satisfactory rotor magnetization, thereby improving the quality of motor products and reducing enterprise loss which may be caused by customer complaints and reworking due to poor magnetization.

Description

technical field [0001] The invention relates to the field of electromagnetic detection, in particular to a rotor magnetic detection method. Background technique [0002] The magnetic ring of the current motor rotor is an important part of the motor. The quality of its magnetization directly affects the important parameters of the motor. Because the magnetization of the rotor is invisible and intangible, it is not easy to test. The existing company has a magnetic curve of the rotor. For testing, because it is more complicated to test the magnetic curve of the rotor, many companies only test the magnetic curve of the first piece, and cannot test the magnetized rotor one by one, and do not test it in production. There are many factors affecting the magnetization quality of the rotor, and many rotors whose magnetization does not meet the requirements will flow out, resulting in poor technical parameters of the finished motor, resulting in an increase in customer complaints and r...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a rotor magnetic detection method. The method is to install the rotor on the rotating device, and automatically compare the induced electromotive force generated by the magnetized rotor and the induction coil with the preset electromotive force value range, and automatically Judging whether the rotor is magnetized or not meets the requirements, the test is simple and fast, and the accuracy of the test result is high, which overcomes the shortcomings of the existing technology in the rotor magnetization test, which can improve product quality and reduce the loss of enterprises due to poor magnetization.

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