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Zero arc extinguishing device

An arc extinguishing device and arc flashover technology, applied in circuit breaker parts, electrical components, electrical switches, etc., can solve the problems of difficult to achieve small volume, high breaking and zero arc flashover, and large volume.

Active Publication Date: 2012-05-09
CHANGSHU GUORUI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main problem of this kind of interrupter is: the volume is too large, it is difficult to achieve small volume, high breaking and zero flashover

Method used

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Examples

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Embodiment Construction

[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0021] The invention provides a zero flashover arc extinguishing device, such as figure 1 shown. The arc extinguishing device includes an arc shield 1 , an arc striker 3 , two arc shields, a grid 2 , an insulating frame 6 , an arc extinguisher 4 and a deionizing net 5 .

[0022] The connection relationship is: the protrusions on the top of the two arc-proof walls match the grooves on the bottom of the arc-proof cover 1 to realize the positioning of the arc-break cover 1, and the two arc-break walls are fixed to the arc-break cover 1 by screws . Sixteen pairs of longitudinal slots are processed on the inner walls of the two arc partitions. Fifteen grid pieces 2 are inserted into the slots one by one and the other is reversed. The arc starting piece 3 is a bent sheet structure, and one side is vertical , the other side is inclined to the lower left, and f...

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PUM

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Abstract

The invention discloses a zero arc extinguishing device. The arc extinguishing device comprises an arc separation cover, an arc striking sheet, two arc separation walls, grid sheets and one or more than one group of arc extinguishing sheets, wherein each group of arc extinguishing sheets comprises an insulating frame, an arc extinguishing plate and a de-ionization net. The top parts of two arc extinguishing walls are connected through the arc separation cover; two or more than two pairs of longitudinal slots are machined on the inner walls of the two arc separation walls; the two or more than two grid sheets are sequentially inserted into the slots forwards and backwards; and the arc striking sheet is inserted into the slots at the end parts of the arc separation walls. The one or more than one group of arc extinguishing sheets is installed between the top parts of the grid sheets and the arc separation cover. In order to increase a cooling area of the grid sheets on electric arcs, the tops of the grid sheets abut against the insulating frame, the bottoms of the grid sheets are arranged stepwise along an inclining surface of the arc striking sheet without contacting the arc striking sheet, and the length of the grid sheets can reach the range from 1 / 2 to 2 / 3 height of an arc extinguishing chamber. Compared with the traditional arc extinguishing chamber, the arc extinguishing device can realize the effects of small size, high breaking and zero arc.

Description

technical field [0001] The invention relates to an arc extinguishing device, in particular to a zero flashover arc extinguishing device, which belongs to low-voltage electrical equipment. Background technique [0002] During the action of the circuit breaker with load breaking, the voltage between the contacts causes the air medium to discharge and form an arc. Therefore, in switches such as circuit breakers and contactors, arc extinguishing chambers are usually provided to extinguish the arc, thereby ensuring the safe operation of electrical equipment. [0003] In the existing arc extinguishing chamber, a row of arc extinguishing grids is arranged inside to cut off and extinguish the arc, and a space is reserved between the grids and the arc extinguishing cover to prevent the arc from flying out of the arc extinguishing chamber. But the main problem of this kind of interrupter is: the volume is too large, it is difficult to achieve small volume, high breaking and zero flas...

Claims

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Application Information

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IPC IPC(8): H01H9/34H01H73/18
Inventor 秦钢华冒如权杨建东周刚
Owner CHANGSHU GUORUI TECH CO LTD
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