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Electromechanical integrated combined type quick switch

A fast switching and combined technology, applied in the field of switching, can solve the problems of useless energy consumption, unsatisfactory requirements, loud noise, etc., and achieve the effect of strong flow capacity and fast speed

Pending Publication Date: 2019-12-31
珠海华创泰能能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The turn-on time of the existing mechanical fast switch is generally greater than 5ms, and the turn-off time of the switch body is less than 2ms without considering the arc extinguishing time, which does not meet the requirements; the turn-on time of the power electronic switch is less than 1ms, and the turn-off time is less than 3ms, which can meet the use requirements
However, when the power electronic switch is in normal operation, it has a large loss, emits a large amount of heat and a large noise, and has a weak ability to bear overvoltage and overcurrent. At the same time, it consumes a large amount of useless energy, causing a large economic loss loss

Method used

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  • Electromechanical integrated combined type quick switch
  • Electromechanical integrated combined type quick switch
  • Electromechanical integrated combined type quick switch

Examples

Experimental program
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Embodiment Construction

[0012] Such as figure 1 As shown, in this embodiment, the electromechanical combined fast switch is mainly composed of mechanical eddy current driven vacuum fast switch, power electronic switch, artificial zero-crossing arc extinguishing unit, switching unit and other parts. figure 1 shown. in,

[0013] FS: mechanical eddy current driven vacuum fast switch, main switch;

[0014] SCR1, SCR2: Power electronic switches, used to assist the main switch to turn on and turn off quickly;

[0015] C: Energy storage capacitor, used to generate artificial zero-crossing current, and assist the main switch to turn off quickly;

[0016] L: Current-limiting reactor, used to limit the rate of change of current in the circuit (di / dt);

[0017] JC1∼2: AC contactor switching main contact, used to switch the working mode of power electronic switch;

[0018] NR: Zinc oxide nonlinear resistor, overvoltage protection;

[0019] CDD: charging unit, used to charge the energy storage capacitor.

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Abstract

The invention discloses an electromechanical integrated combined type quick switch, and aims at providing the electromechanical integrated combined type quick switch which is simple in structure, is capable of satisfying an uninterrupted power supply requirement of a load, is high in through-current capability, is free of loss during operation and is rapid in switching speed. The quick switch comprises a mechanical switch, an energy storage capacitor, a first power electronic switch, a second power electronic switch, a current limiting reactor, a first alternating current contactor switching main contact, a second alternating current contactor switching main contact and a charging unit. The quick switch is applied to the technical field of the electromechanical integrated combined type quick switch.

Description

technical field [0001] The invention relates to a switch, in particular to an electromechanical integrated fast switch. Background technique [0002] Equipment in modern industrial parks tends to be integrated and sophisticated, especially in semiconductor industries such as optoelectronics, integrated circuits, and chip manufacturing, equipment manufacturing industries such as vehicle manufacturing, and equipment, petrochemical industries, and high-pressure gas discharge lighting in large public places. A large number of sensitive equipment with CPU, microelectronics, power electronics, digitalization, and information technology as the core are used. In order to improve the reliability of power supply, dual power supply is generally used. When the upper or local part of the main power supply grid fails, in order to avoid quality accidents caused by the voltage sag or short-term power failure of the sensitive load, it is required to switch the power supply to another power s...

Claims

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Application Information

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IPC IPC(8): H02J9/06
CPCH02J9/061
Inventor 李小滨
Owner 珠海华创泰能能源科技有限公司
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