CN201188376Y - Low-voltage circuit breaker - Google Patents
Low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201188376Y CN201188376Y CNU2007200976156U CN200720097615U CN201188376Y CN 201188376 Y CN201188376 Y CN 201188376Y CN U2007200976156 U CNU2007200976156 U CN U2007200976156U CN 200720097615 U CN200720097615 U CN 200720097615U CN 201188376 Y CN201188376 Y CN 201188376Y
- Authority
- CN
- China
- Prior art keywords
- arc
- arc extinguishing
- control device
- chute
- circuit breaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a low-voltage circuit breaker which is characterized in that an arc extinguishing device is included, in an arc extinguishing chamber of each phase of the arc extinguishing device, two layers of metal sieve plates vertical to the plane of an arc chute are fixed between the arc chute and the gas outlet of the arc extinguishing chamber, a space is left between the two layers of sieve plates; in the arc extinguishing chamber of each phase, and a short arc chute is arranged under one section of an end tab angled with the arc chute. Because the arc extinguishing metal sieve plates in the arc extinguishing chambers of the breaker replace the original slanting insulation sheet and the short arc chute is arranged at the inner part of the arc extinguishing chamber of the end tab angled with the arc chute, the arrangement of the arc chute can be performed according to the movement locus of a contact terminal, the arc extinguishing chambers can be arranged reasonably at the maximum, and the space of the arc extinguishing chambers can be fully utilized. Because the shape of the arc chute is optimized, the arc extinguishing effect of the arc extinguishing chambers can be further improved.
Description
Technical field
The utility model belongs to a kind of circuit breaker, particularly relates to a kind of low-voltage circuit breaker.
Background technology
The structure of arc control device is relatively single in present known omnipotent breaker arc quenching system, arc quenching effect is not very good, particularly the shape of its arc-chute and arc-chute can not fully occupy its effective space in arc control device, are not easy to reach the effect of no arcing.
Summary of the invention
The utility model provides a kind of low-voltage circuit breaker that arc quenching system can reach good arc quenching effect that has for solving the technical problem that exists in the known technology.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: it includes arc-control device, in the arc control device of described each phase of arc-control device, the two-layer metal sieve plate vertical with the arc-chute plane arranged, leave the space between the described two-layer sieve plate in arc extinguishing grid pieces and arc control device gas outlet center fixed; In the arc control device of described each phase on the run-on tab with arc-chute angled one section below short arc-chute is arranged.
The utility model can also adopt following technical scheme:
One side that described arc extinguishing grid pieces and contact blade are close be shaped as a concave arc under the arc extinguishing grid pieces central fovea, and on described concave arc, also have a little concave arc.
The position of the described little concave arc in the arc control device of every phase on adjacent two arc extinguishing grid pieces is not both staggers each other.
Advantage and the good effect that the utlity model has are: owing to replaced original tilting insulating trip and in the angled one section arc control device inside of run-on tab and arc-chute short arc-chute has been housed also with metal sieve plate with arc extinguishing in the arc control device of circuit breaker.Like this according to the contact movement locus to the arranging of arc extinguishing grid pieces, reasonably arranged to greatest extent and utilized the arc control device space fully by arc control device.Again since optimal design the profile of arc extinguishing grid pieces, further improved the arc quenching effect of arc control device.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the shape figure of arc extinguishing grid pieces among Fig. 1.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify the embodiment of phase arc control device in the following Arc Distinguishing Device for Circuit Breakers now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, in low-voltage circuit breaker, include insulation shell 2 in the phase arc control device, be installed in arc extinguishing grid pieces 1 that the stairstepping of housing 2 inner chambers arranges and short arc-chute 5 and run-on tab 4 also be housed, also be provided with double layer of metal in housing 2 upper ends and sieve sheet 3 in the angled one section arc control device inside of run-on tab and arc-chute.Sieve aperture on this double layer of metal sieve sheet 3 is staggeredly arranged each other.
As shown in Figure 2, the arc extinguishing grid pieces profile that arc extinguishing grid pieces 1 closes on contact one end is another little concave arc to be set departing from a longitudinal centre line left side or right both sides respectively at each sheet of the concave arc top of arc extinguishing grid pieces 1 or 5, and being installed on the position difference of the little concave arc disalignment on adjacent two arc extinguishing grid pieces 1 or 5 in the arc control device, their are straggly arranging mutually each other.
Straggly arranging between the specially designed arc extinguishing grid pieces 1 and 5 is beneficial to and attracts electric arc to enter arc control device, and two kinds of different arc extinguishing grid pieces 1 and 5 of length are stairstepping arranges and make full use of the arc control device space, has made full use of the arc control device effective volume.Two-layer sieve aperture is straggly about in the of 3 arranges for the metallic screen sheet, can better play the effect of no arcing.
Claims (3)
1. low-voltage circuit breaker, it includes arc-control device, it is characterized in that: in the arc control device of described each phase of arc-control device, the two-layer metal sieve plate vertical with the arc-chute plane arranged, leave the space between the described two-layer sieve plate in arc extinguishing grid pieces and arc control device gas outlet center fixed; In the arc control device of described each phase, short arc-chute also is housed in the angled one section arc control device inside of run-on tab and arc-chute.
2. low-voltage circuit breaker according to claim 1 is characterized in that: one side that described arc extinguishing grid pieces and contact blade are close be shaped as a concave arc under the arc extinguishing grid pieces central fovea, and on described concave arc, also have a little concave arc.
3. low-voltage circuit breaker according to claim 1 and 2 is characterized in that: the position of the described little concave arc in the arc control device of every phase on adjacent two arc extinguishing grid pieces is not both staggers each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200976156U CN201188376Y (en) | 2007-11-09 | 2007-11-09 | Low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200976156U CN201188376Y (en) | 2007-11-09 | 2007-11-09 | Low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201188376Y true CN201188376Y (en) | 2009-01-28 |
Family
ID=40311399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200976156U Expired - Fee Related CN201188376Y (en) | 2007-11-09 | 2007-11-09 | Low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201188376Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005346A (en) * | 2010-12-01 | 2011-04-06 | 沈阳斯沃电器有限公司 | Arc extinction system of single-breakpoint breaker |
| CN103681025A (en) * | 2012-08-30 | 2014-03-26 | 上海电科电器科技有限公司 | Change-over switch appliance |
| CN113707502A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | Circuit breaker and power distribution system |
-
2007
- 2007-11-09 CN CNU2007200976156U patent/CN201188376Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005346A (en) * | 2010-12-01 | 2011-04-06 | 沈阳斯沃电器有限公司 | Arc extinction system of single-breakpoint breaker |
| CN103681025A (en) * | 2012-08-30 | 2014-03-26 | 上海电科电器科技有限公司 | Change-over switch appliance |
| EP2892068A4 (en) * | 2012-08-30 | 2016-05-04 | Seari Electric Technology Co Ltd | Transfer switch appliance |
| CN103681025B (en) * | 2012-08-30 | 2016-06-01 | 上海电科电器科技有限公司 | Transfer switching equipment |
| CN113707502A (en) * | 2020-05-21 | 2021-11-26 | 华为技术有限公司 | Circuit breaker and power distribution system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20141109 |
|
| EXPY | Termination of patent right or utility model |