A magnetic core inductance detection device based on the use of inductors

Abstract

The invention discloses a magnetic core inductance detection device based on an inductor, which comprises a skeleton, a left circular transmission line, a right circular transmission line, a PLC and an LCR inductance tester connected with the PLC, and a central through hole is arranged in the center of the skeleton , the outer periphery of the skeleton is wound with a coil, and the two ends of the coil are connected with the LCR inductance tester; the first supply level is set on the left circular conveying line, and the second supply position is set on the right circular conveying line; the first supply There is a baffle plate that can be opened and closed at the upstream of the material level and the second material supply level, the left insulating push plate is set on the left side of the first material supply level, and the right insulating push plate is set on the right side of the second material supply level ; The tops of the left insulating push plate and the right insulating push plate are equipped with electromagnets that can be turned over; the downstream of the first material supply level and the second material supply level are respectively equipped with unqualified push rods, and the one opposite to the unqualified push rods There is a non-conforming product box on the side. After adopting the above structure, the pressing force is uniform, the test result is accurate and reliable, and the degree of automation is high.

Description

Technical field [0001] The invention relates to an auxiliary test tool in the production process of electronic components, in particular to a magnetic core inductance detection device based on the use of inductors. Background technique [0002] The magnetic core with center column is used for the inductor, and it needs to be paired when used. Due to sintering and grinding reasons, some core inductors with center pillars may not meet the specified inductance requirements. Therefore, before leaving the factory or the inductor is assembled and produced, it is necessary to test or sort all the inductances of the shipped batches or the inductances of the magnetic cores using the middle column of the batch, and sort out the magnetic cores whose inductance does not meet the requirements. [0003] When testing the inductance of the existing magnetic core with a center column, the test tool is very simple, such as manually winding a coil with several turns, and directly sleeve the coil on ...

AI Technical Summary

Problems solved by technology

It often happens that the inductance test is qualified before leaving the factory or before use, but the inductance assembled on the line is unqualified.

[0007] 3. The coil is directly in contact with the magnetic core with a central column. Because the corners of the magnetic core with a central column are relatively sharp, it is easy to pierce the outer insulation of the coil, resulting in inaccurate test results and a short service life of the coil.

[0008] 4. The inductance test is all manual operation, with low degree of automation, high labor cost and large test error

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