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Intelligent contactor integrated with contact current detection structure

A technology of current detection and contactor, which is applied in the direction of relays, current-only measurement, electromagnetic relays, etc., can solve the problems of difficult integration of contactor body and large volume of Rogowski coil, and achieve improved frequency response range, strong anti-interference ability, and reduced overall cost effect

Inactive Publication Date: 2015-06-10
FUJIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Rogowski coil is bulky and difficult to integrate into the contactor body

Method used

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  • Intelligent contactor integrated with contact current detection structure
  • Intelligent contactor integrated with contact current detection structure
  • Intelligent contactor integrated with contact current detection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as Figure 1-3 A smart contactor with an integrated contact current detection structure is shown, including a contact conductor 1, and a non-conductor material 2 is provided in a fixed position with the contact conductor 1; the non-conductor material 2 is provided with a current detection structure 3. The current detection structure 3 includes a semi-open magnetic core 4 and a current detection coil 5; the semi-open magnetic core 4 includes a cylinder 6, and a groove 7 is opened around the cylinder 6, and the current detection coil 5 passes through the concave The groove 7 is wound on the cylinder 6; the current detection structure 3 and the contact conductor 1 are respectively located on both sides of the non-conductor material 2, and the distance between the current detection structure 3 and the contact conductor 1 is sufficient to allow the contact conductor 1 to pass through When the AC current is applied, the current detection coil 5 generates an induced volta...

Embodiment 2

[0026] Such as Figure 4 An intelligent contactor with an integrated contact current detection structure is shown, including a contact conductor 1, and a non-conductor material 2 is provided in a fixed position with the contact conductor 1; the contact conductor 1 is a static contact of the contactor The non-conductor material 2 is a rectangular plastic plate; the non-conductor material 2 is provided with a current detection structure 3; the current detection structure 3 includes a semi-open magnetic core 4 and a current detection coil 5; the semi-open magnetic The core 4 is an E-shaped magnetic core 8 , and the current detection coil 5 is wound on the central column 9 of the E-shaped magnetic core. The current detection structure 3 and the contact head conductor 1 are located on both sides of the non-conductor material 2 respectively, and the distance between the current detection structure 3 and the contact head conductor 1 is sufficient to allow the contact head conductor 1...

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PUM

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Abstract

The invention discloses an intelligent contactor integrated with a contact current detection structure. The intelligent contactor comprises a contact conductor, wherein a non-conductor material is arranged at a region at a fixed position with the contact conductor; the non-conductor material is provided with a current detection structure; the current detection structure comprises a half open circuit magnetic core and a current detection coil; the half open circuit magnetic core comprises a column body; groove is formed in the periphery of the column body; the current detection coil is wound on the column body through the groove; the current detection structure and the contact conductor are positioned on the two sides of the non-conductor material, and the distance between the current detection structure and the contact conductor is enough to allow the current detection coil to generate inductive voltage when alternating current passes through the contact conductor. The current detection structure is integrated in the contact body, so the current detection scheme of a contactor contact loop has the advantages of low cost, high linearity, high range, wide frequency response range, high anti-interference capacity and the like.

Description

technical field [0001] The invention relates to an intelligent contactor, in particular to an intelligent contactor with an integrated contact current detection structure. Background technique [0002] At present, traditional electromagnetic appliances are still widely used in automatic control systems. With the continuous improvement of system automation level, higher requirements are put forward for the performance of traditional electromagnetic appliances. Various research institutions and industry scholars have conducted a lot of research on traditional electromagnetic appliances. As early as the 1980s, the research on smart appliances has become a research hotspot and has gradually entered the market application. Usually, an intelligent contactor includes two parts: the contactor body and the intelligent control module. The intelligent control module controls the contactor's pull-in process, hold phase, and disconnection process according to a preset program. [0003]...

Claims

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Application Information

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IPC IPC(8): H01H50/54G01R19/00
CPCH01H50/54G01R19/0092
Inventor 林抒毅郑荣进谢文明黄诗浩蒋新华聂明星邵明
Owner FUJIAN UNIV OF TECH