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Contact method and control device for switch contacts and power switch

A technology of switch contacts and power switches, which is applied in the electronic field and can solve the problems of contact points (contact oxidation, black burning, etc.)

Inactive Publication Date: 2014-12-03
GUANGZHOU VIDEO STAR ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a contact method of a switch contact, a control device, and a power switch, which solves the technical problem that the contact point (contact) of the power switch is easily oxidized and burnt black due to the phenomenon of ignition and arcing. Thereby improving the service life of the power switch and enhancing the contact switching current

Method used

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  • Contact method and control device for switch contacts and power switch
  • Contact method and control device for switch contacts and power switch
  • Contact method and control device for switch contacts and power switch

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Embodiment Construction

[0047] The embodiment of the present invention provides a contact method of a switch contact, a control device, and a power switch, which solves the technical problem that the contact point (contact) of the power switch is easily oxidized and burnt black due to the phenomenon of ignition and arcing. Thereby improving the service life of the power switch and enhancing the contact switching current.

[0048] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative effo...

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Abstract

The embodiment of the invention discloses a contact method and a control device for switch contacts and a power switch. The contact method and the control device for the switch contacts solve the technical problem that contact points (contacts) of the power switch are prone to oxidation and charring due to fire striking and arc discharge of the power switch; as a result, the service life of the power switch is prolonged, and switching currents of the contacts are enhanced. The method comprises the first step of triggering the power switch, the second step of judging whether the power switch is switched on or switched off after being triggered, and executing the third step if the power switch is switched on after being triggered, and the third step of switching on the switch contacts in the power switch in sequence in a voltage reducing and current limiting mode.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a contact method for a switch contact, a control device, and a power switch. Background technique [0002] A contact switch refers to a switch that uses metal contacts to open and connect a circuit, interrupt the current or allow it to flow to other circuits. [0003] At present, the switch contact points used by various mechanical power switches are directly closed and disconnected, so it is very easy to generate ignition and arcing at high current or high voltage. The switch indicates that the rated short-circuit breaking current is 20KA, which means that the action of the arc-extinguishing heating element of the short-circuit tripping contact within 20KA is effective, and the action of the arc-extinguishing heating element of the tripping joint beyond this limit is not guaranteed, and arcing will occur, causing the contact point ( Contacts) are prone to oxidation and blac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 唐伟文朱湘军彭永坚
Owner GUANGZHOU VIDEO STAR ELECTRONICS
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