Electromagnetic relay contact rebound time testing device and method

Abstract

The invention provides an electromagnetic relay contact rebound time testing device and method, the device comprises a relay load resistor, a control unit, a power supply unit, a signal generator and a data collector, the control unit is connected with the signal generator, the power supply unit and a first end of a test relay coil; the second end of the test relay coil is connected with the power supply unit; the first end of the to-be-tested contact of the test relay is connected with the relay load resistor and the data collector, and the second end of the to-be-tested contact of the test relay is connected with the power supply unit; and the data acquisition unit is also connected with the relay load resistor. According to the device and the method, the contact rebound time of the electromagnetic relay can be accurately tested, the loss of human resources is reduced, and the accuracy of a test result is improved.

Description

technical field [0001] The present application relates to the field of electrical performance testing, in particular to an electromagnetic relay contact bounce time testing device and method. Background technique [0002] In recent years, due to the irreplaceable importance of the power system in people's production and life, the reliability of the power equipment has become a hot issue of concern, and the equipment is composed of various types of electronic materials. In order to ensure the overall reliability of the whole equipment, it is necessary to ensure the inherent reliability and reliability of each electronic material in it. As a key component of the whole equipment, the performance of the electromagnetic relay will directly have a huge impact on the stability and reliability of the whole equipment. Electromagnetic relay is a special switch that can use smaller current and lower voltage to control larger current and higher voltage. It is mainly composed of iron co...

AI Technical Summary

Problems solved by technology

[0003] Among the performance parameters of the electromagnetic relay, the contact bounce time of the electromagnetic relay is a key parameter worthy of attention, because the contact bounce time is too long, which will cause the relay contacts to accumulate, spark and ablate, resulting in electrical wear of the relay contacts , affecting the service life and stability of the electromagnetic relay

However, in the prior art, there is a lack of a specific test method for the bounce time of relay contacts. It is often necessary to manually record the contact bounce time of each relay test product, and combine a large number of test data statistics to obtain the relay contact bounce time. The time test results require a lot of manpower and material resources, and the contact bounce time test of the relay cannot be completed quickly and reliably. Human factors are greatly affected, and the results are not accurate enough.

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