Energy saving device of electromagnetic system and electromagnetic system including energy saving device

An energy-saving device and electromagnetic system technology, which is applied in the field of electromagnetic systems, can solve problems such as poor versatility, and achieve the effect of enhanced versatility

Active Publication Date: 2012-10-17
浙江中凯科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, what the present invention is to solve is the technical problem of poor versatility caused by the fixed pull-in voltage and holding voltage of the existing electromagnetic relay power-saving device, and provides an energy-saving device for an electromagnetic system and an electromagnetic system including the energy-saving device

Method used

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  • Energy saving device of electromagnetic system and electromagnetic system including energy saving device
  • Energy saving device of electromagnetic system and electromagnetic system including energy saving device
  • Energy saving device of electromagnetic system and electromagnetic system including energy saving device

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Embodiment Construction

[0034] see figure 1Shown is a structural block diagram of an energy-saving device for an electromagnetic system according to an embodiment of the present invention. As an energy-saving device according to an embodiment of the present invention, it includes: a thyristor control unit, whose input terminal is connected to an AC power supply, and is used to adjust the thyristor The conduction angle of the rectifier unit, the input terminal of which is connected to the output terminal of the thyristor control unit, is used to adjust the alternating current to pulsating direct current and output it, and the output terminal of the rectifier unit constitutes the output terminal of the energy-saving device, and outputs direct current ; AC / DC conversion unit, its input terminal is connected in parallel with the input terminal of the thyristor control unit, and is connected with the AC power supply together, and is used to change the alternating current into direct current output; the del...

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PUM

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Abstract

The invention relates to an energy saving device of the electromagnetic system, and an electromagnetic system including the energy saving device. The energy saving device comprises a SCR (semiconductor control rectifier) control unit, wherein the input end of the SCR control unit is connected with an AC (alternating current) power supply; the SCR control unit includes at least one second variable resistor (VR2) and one seventh capacitor (C7) in serial connection; the different charging-discharging times of the seventh capacitor (C7) can be obtained by regulating the resistance of the second variable resistor (VR2); and the size of a phase shift angle of the SCR can be changed by controlling the charging-discharging time of the capacitor to further change the size of a conduction angle of the SCR. Different pull-in voltages and retention voltages can be obtained by regulating the resistance of the second variable resistor (VR2) to adapt to different electromagnetic systems, thereby greatly enhancing the versatility.

Description

technical field [0001] The invention relates to the technical field of contactors, in particular to an energy-saving device for an electromagnetic system and an electromagnetic system including the energy-saving device. Background technique [0002] AC contactors are widely used in power breaking and control circuits, which use the main contacts to open and close the circuit, and use the auxiliary contacts to execute control commands. The main contacts generally only have normally open contacts, while the auxiliary contacts often have two pairs of contacts with normally open and normally closed functions. The AC contactor mainly consists of four parts: (1) Electromagnetic system, including attraction coil, moving iron core and static iron (2) Contact system, including three sets of main contacts and one to two sets of normally open and normally closed auxiliary contacts, which are linked together with the moving iron core; (3) Arc extinguishing device, general capacity Larg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/02
Inventor 黄世泽朱谅杨佰传屠瑜权
Owner 浙江中凯科技股份有限公司
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