A DC PC-level double-power switch arc extinguishing structure

A dual power switch and arc extinguishing technology, which is applied in the direction of electric switches, circuits, electrical components, etc., can solve the problems of the dual power supply structure, such as weak arc extinguishing ability, weak arc guidance, and long arc extinguishing time, so as to improve the power supply High breaking capacity, good arc extinguishing effect, and low production cost

Pending Publication Date: 2019-01-11
JIANGSU KAILONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The current commonly used arc extinguishing method is to introduce the generated arc into the arc extinguishing chamber through the arc striker for arc extinguishing, but there are defects such as weak arc guidance, long arc extinguishing time, and poor arc extinguishing effect, resulting in the arc extinguishing of the dual power supply structure. Not strong

Method used

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  • A DC PC-level double-power switch arc extinguishing structure
  • A DC PC-level double-power switch arc extinguishing structure
  • A DC PC-level double-power switch arc extinguishing structure

Examples

Experimental program
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Embodiment Construction

[0023] The specific implementation of this embodiment will be described below in conjunction with the accompanying drawings.

[0024] The invention includes two layers of power supply structure, the first layer of power supply structure is used for connecting common power supply, and the second layer of power supply structure is used for connecting backup power supply. The internal structures of the first layer power structure and the second layer power structure are the same.

[0025] figure 1 is a top view of the base in a one-story power structure. figure 2 Yes figure 1 Schematic diagram of the permanent magnet and the arc extinguishing plate after removing the arc chute in Part I. image 3 is a top view of the case in a one-layer power structure.

[0026] like Figure 1 ~ Figure 3 As shown, the one-layer power supply structure includes a base 7 and a casing 6 . Four static contact groups and one moving contact 5 are installed on the base 7 . Each static contact gro...

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PUM

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Abstract

The invention relates to a DC PC-level double-power switch arc extinguishing structure, comprising a double-layer power supply structure. The power supply structure comprises a base and a casing; Fourstatic contact groups and one movable contact are arranged on the base; Each stationary contact group comprises two stationary contacts, and the two stationary contacts are oppositely installed on both sides of the movable contacts. The movable contact comprises a movable contact rod. The movable contact rod is parallel to the transverse edge of the base; When the movable contact rod moves in thedirection of the transverse edge of the base, the movable contact point and the static contact point close or open; a plurality of permanent magnet devices are respectively fixed on the base and thecover shell. The permanent magnet device comprises a permanent magnet; arc-separating plate are arranged on that outside of the permanent magnet; as that house covers the base, the stationary contactare located between the two permanent magnet devices. The invention can quickly extinguish the arc, effectively solves the arc pulling phenomenon when the power supply is disconnected, accelerates thedisconnecting speed of the double power supply switch, and improves the breaking capacity of the double power supply switch.

Description

technical field [0001] The invention relates to a PC level double power switch, in particular to an arc extinguishing structure of a DC PC level double power switch. Background technique [0002] DC PC-level dual power switches are generally used in places where electrical equipment cannot be cut off, such as hospital operating rooms and trains. In these occasions, if the electrical equipment is powered off, it will affect the work progress and cause serious consequences. In order to prevent temporary power failure, the electrical equipment in these occasions generally needs to be equipped with a backup power supply. The DC PC-level dual power switch is an electrical device used to switch electrical equipment from the common power supply to the backup power supply when the common power supply fails. [0003] The dual power switch generally includes a double-layer power supply structure. The power input terminal of the first-level power supply structure is connected to the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/44H01H9/34
CPCH01H9/34H01H9/443
Inventor 姚荣平
Owner JIANGSU KAILONG ELECTRONICS
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