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Control system of electromagnet without contact

A control device, non-contact technology, applied in the direction of electromagnets with armatures, electromagnets, transportation and packaging, etc., can solve the problems of high cost and easy damage, and achieve long service life, material saving and high degree of automation. Effect

Inactive Publication Date: 2007-10-10
陈明海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High cost and easy damage, which is the actual situation of current application

Method used

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  • Control system of electromagnet without contact
  • Control system of electromagnet without contact
  • Control system of electromagnet without contact

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0013] As shown in Figure 1-3, the technical solution of the lifting electromagnet non-contact control device in the figure is: the output end of the AC power supply and the control unit 1 are respectively connected with the input ends of the transformer and rectification unit 2 and the power failure protection unit 4 Connected, the output terminals of the transformer and rectifier unit 2 are respectively connected with the excitation demagnetization conversion and control unit 3 and the automatic charging unit 5; the computer logic and control unit 7 receives the control signal of the power-down protection unit 4 and is powered by the battery pack 8; The computer logic and control unit 7 provides the excitation demagnetization conversion and freewheeling logic instructions for the excitation demagnetization conversion and control unit 3 to carry out contactless control to the load and the freewheeling protection unit 9; The unit 6 and the excitation demagnetization switching a...

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PUM

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Abstract

A non-contact controller of electromagnet is composed of three-phase AC power supply, control unit, transformer-rectifier unit, power-losing protection unit, magnetic exciting-demagnetizing switching unit, automatic charger unit, computerized logic-control unit, electric accumulator set, load and current hold protection unit, and hold and control unit, Their electric connection scheme is also disclosed.

Description

technical field [0001] The invention relates to the technical field of industrial hoisting equipment, in particular to an electromagnet non-contact control device that provides DC power to a large DC hoisting electromagnet and realizes non-contact control. The purpose is to provide safe and reliable control for the work of the lifting electromagnet. Background technique [0002] At present, the lifting electromagnet control technology is still at the level of the former Soviet Union in the 1950s. Although the development speed of electronic components is very fast in recent years, there are many applications in the lifting electromagnet control technology, but they are not very ideal. Since the lifting electromagnet coil is a large inductance element, when the electromagnet coil passes a large current, a large amount of magnetic field energy will be stored in the coil. When the electromagnet excitation voltage is turned off, the huge energy stored in the electromagnet excit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/08H01F7/18
Inventor 陈明海宫玉发候艳杰陈莉莉
Owner 陈明海
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