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Control method and device of alternating current contactor

An AC contactor and control method technology, applied in the electrical field, can solve the problems of breaking arc, contactor contact suction and bounce, etc., achieve rapid suction or disconnection, overcome contact failure, solve suction and bounce and other problems. The effect of breaking the arc

Active Publication Date: 2015-04-29
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a control method and device for an AC contactor, so as to at least solve the problems of the AC contactor in the prior art that the contacts of the contactor attract and bounce and break and arc

Method used

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  • Control method and device of alternating current contactor
  • Control method and device of alternating current contactor
  • Control method and device of alternating current contactor

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Embodiment Construction

[0021] 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. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0022] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that the terms "fir...

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Abstract

The invention discloses a control method and device of an alternating current contactor. The control method comprises the following steps: collecting the coil voltage of the alternating current contactor; controlling a contact of the alternating current contactor to be closed when the coil voltage of the alternating current contactor is preset close voltage; controlling the contact of the alternating current contactor to be disconnected when the coil voltage of the alternating current contactor is zero voltage. By adopting the method and the device, the problems of contact close bounce of a contactor and arc discharge breaking of the alternating current contactor in the prior art are solved, and the condition that the alternating current contactor can realize rapid closing or disconnecting in the condition of contact failure is ensured.

Description

technical field [0001] The invention relates to the electrical field, in particular to a control method and device for an AC contactor. Background technique [0002] At present, AC contactors are widely used in large-scale heavy industry enterprises, such as air-conditioning enterprises, mainly for controlling large loads (such as cranes, compressors, motors, etc.), but this kind of AC contactors will cause many unreliable, Unstable factors, the most prominent of which is the failure of the contactor contacts. The reason for this phenomenon is that there are problems of the contactor's contact bouncing and breaking and arcing. [0003] Aiming at the problems of the AC contactor in the prior art that the contacts of the contactor pull and bounce and break and arc, no effective solution has been proposed so far. Contents of the invention [0004] Embodiments of the present invention provide a control method and device for an AC contactor, so as to at least solve the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/02
CPCH01H47/02
Inventor 郑铁军吴超杜进刘子恒韦正春罗俊宏
Owner GREE ELECTRIC APPLIANCES INC
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