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Contactor driven by capacitive stored energy

A technology of capacitive energy storage and contactors, which is applied in the direction of relays, circuits, electrical components, etc., can solve problems such as impact and damage of contactors or electrical appliances, shorten the life of contactors or electrical appliances, and hidden dangers of contactors. Economic and social benefits, rich control methods, and the effect of reducing potential safety hazards

Inactive Publication Date: 2015-04-22
TECH POWER INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The action of the contactor in the prior art needs to be driven by electric power, and it cannot operate without power supply, which makes the use of the contactor a safety hazard and affects the user experience. For example, when there is no power, the contactor cannot be powered off in time to protect the contactor and Disconnect relevant circuits, which may cause impact and damage to contactors or electrical appliances when the power is suddenly turned on or the power is unstable, shortening the life of contactors or electrical appliances

Method used

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  • Contactor driven by capacitive stored energy
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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0025] A contactor driven by capacitor energy storage, which includes: at least one joint contact; a joint electromagnet, used to provide a driving force to close the joint contact; a circuit breaker electromagnet, used to provide a driving force to open the joint contact The electromagnet drive circuit is used to control the action of the engaging electromagnet and / or the disconnecting electromagnet; the disconnecting energy storage capacitor is used to store electric energy and provide electric energy for the disconnecting electromagnet when the disconnecting is started, so that the disconnecting electromagnet provides driving force for Engaging contacts open.

[0026] Preferably, it also includes a controllable switch, and the circuit breaker electromagnet is electrically connected with the circuit brea...

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Abstract

The invention discloses a contactor driven by capacitive stored energy. The contactor comprises at least one joint contact, a joint electromagnet, an electromagnet drive circuit and an open circuit energy storage capacitor. The open circuit energy storage capacitor is connected to the contactor, so that the contactor can still drive the open circuit electromagnet to enable the joint contacts to reset in an opened state under the condition of no power supply, action is rapid and reliable, using potential safety hazard of the contactor is effectively reduced, and the contactor and the relevant circuits are protected; in addition, through design of a starting button and a break button, the contactor can be switched on and off in an automatic, semi-automatic and manual mode, various flexible control modes are achieved and enriched, and the contactor is safer and more reliable. The contactor can be widely applied to the field of various contactors.

Description

technical field [0001] The invention relates to the field of power switching devices, in particular to a contactor driven by capacitor energy storage. Background technique [0002] Contactors are divided into AC contactors (voltage AC) and DC contactors (voltage DC), which are widely used in electric power, power distribution and power consumption. In a broad sense, a contactor refers to an electrical appliance that uses a coil to flow through a current to generate a magnetic field to close the contacts in industrial electricity to control the load. In electrical engineering, because it can quickly cut off the AC and DC main circuits and can frequently switch on and control large current (some types can reach 800 amperes) circuits, it is often used in motors as control objects, and can also be used as a control object. Used to control electrical loads such as factory equipment, electric heaters, working machines and various electric power units, the contactor can not only s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/02
CPCH01H47/02
Inventor 杜文福何明伟
Owner TECH POWER INT
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