E-type magnetic core inductor test tool

A technology for testing tooling and inductance testers, applied in measuring devices, measuring electrical variables, measuring resistance/reactance/impedance, etc., can solve problems such as short service life of coils, unqualified inductance, inaccurate test results, etc., and achieve test results Accurate, uniform pressing effect

Inactive Publication Date: 2015-11-25
SUZHOU YIXINYUAN PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 in direct contact with the E-type

Method used

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  • E-type magnetic core inductor test tool

Examples

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Example Embodiment

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and specific preferred embodiments.

[0028] like figure 1 As shown, an E-shaped magnetic core inductance test tool includes a base 2, a skeleton 1, an upper spring pressure plate 3, a lower spring pressure plate 4, and an LCR inductance tester 13.

[0029] The skeleton, the upper spring pressing plate and the lower spring pressing plate are coaxially arranged; the lower elastic pressing plate is fixed on the base, the skeleton is fixed directly above the lower spring pressing plate through an insulating bracket, and the upper spring pressing plate is fixed directly above the skeleton; the upper spring pressing plate and the lower spring pressing plate They are connected by lifting guide columns.

[0030] The bottom of the lower spring pressing plate is provided with at least two limiting protrusions for fixing the bottom of the E-shaped magnetic core to be teste...

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Abstract

The invention discloses an E-type magnetic core inductor test tool comprising a pedestal, a framework, an upper spring pressing plate, a lower spring pressing plate and an LCR inductor tester. The lower elastic pressing plate is fixed on the pedestal. The framework is fixed exactly above the lower spring pressing plate via an insulating support. The upper spring pressing plate is fixed exactly above the framework. The upper spring pressing plate and the lower spring pressing plate are connected via an elevating guide column. The bottom part of the lower spring pressing plate is provided with at least two limiting convex columns which are used for fixing the bottom parts of E-type magnetic cores to be tested. The center of the framework is provided with a center through hole enabling the center columns of the E-type magnetic cores to be tested to pass. The external periphery of the framework is wound by a coil. The two ends of the coil are connected with the LCR inductor tester. The pedestal is provided with elevating control buttons. After application of the aforementioned structure, pressing force of the bottom parts of the two E-type magnetic cores can be controlled by controlling spring restoring force of the upper spring pressing plate and the lower spring pressing plate, and pressing force is uniform so that test results are accurate and reliable.

Description

technical field [0001] The invention relates to an auxiliary test device in the production process of electronic components, in particular to an E-type magnetic core inductance test tool. Background technique [0002] Inductors use E-type magnetic cores, and they need to be paired when used. Due to sintering and grinding, some E-core inductors may not meet the specified inductance requirements. Therefore, before leaving the factory or assembling and producing inductors, it is necessary to test or sort all the inductances of the shipped or used batches of E-type magnetic cores, and sort out the magnetic cores whose inductance does not meet the requirements. [0003] When testing the inductance of the existing E-shaped magnetic core, the test tool is very simple, such as manually winding a coil with several turns, and directly installing the coil on the center column of one of the E-shaped magnetic cores, and testing the inductance between the two ends of the coil and the LCR...

Claims

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Application Information

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IPC IPC(8): G01R27/26
Inventor 庆效荣
Owner SUZHOU YIXINYUAN PHOTOELECTRIC TECH
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