CN201590606U - Switch cabinet with arc channel - Google Patents
Switch cabinet with arc channel Download PDFInfo
- Publication number
- CN201590606U CN201590606U CN2009202705514U CN200920270551U CN201590606U CN 201590606 U CN201590606 U CN 201590606U CN 2009202705514 U CN2009202705514 U CN 2009202705514U CN 200920270551 U CN200920270551 U CN 200920270551U CN 201590606 U CN201590606 U CN 201590606U
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- CN
- China
- Prior art keywords
- pressure releasing
- switch cubicle
- framework
- cover plate
- switch cabinet
- 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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Abstract
The utility model discloses a switch cabinet (1) which includes the framework (15) of a metal clad switchgear and an arc channel (14) formed in the framework (15); a pressure releasing board (13) is arranged at the top part of the framework (15) and is pivoted with the framework (15); when the switchgear works normally, the pressure releasing board (13) shields the arc channel (14); a cover plate (11) is arranged above the pressure releasing board (13) and is fixed on the framework (15); and a space is formed between the cover plate (11) and the pressure releasing board (13);. The switch cabinet with arc channel is characterized in that the cover plate (11) is provided with a plurality of openings (12). The switch cabinet can reduce the pressure load undertaken by the internal structure of the switch cabinet when internal arc faults are generated, and guarantee the safety of operating personnel surrounding the switch cabinet. Meanwhile, the switch cabinet can improve the ventilation effect during normal work.
Description
Technical field
The utility model relates to a kind of switch cubicle, particularly relates to a kind of switch cubicle with arc channel.
Background technology
In the switching device course of work, may since the deterioration of operational environment or staff's misoperation and in switch cubicle starting arc, so-called internal arc fault promptly takes place.When the internal arc fault takes place when, the pressed gas of spark and heat can appear in the switch cubicle, and electric arc can spread rapidly in switch cubicle inside simultaneously, and outside the switch cubicle of finally overflowing.Usually, the pressed gas of spark and heat can upwards be overflowed by the pressure releasing plate by the switch cabinet body top, and rushes at downwards around the cabinet after being subjected to the stopping of transformer room's ceiling.At this moment, if operating personnel just nearby, then may come to harm.
For operating personnel's safety, prior art adopts dual mode to solve this problem usually.A kind of mode is the arc channel that stops switch cubicle with solid cover plate, prevents outside the pressed gas effusion switch cubicle of spark and heat with this.Another kind of mode is that extensional pipeline is installed at the switch cabinet body top, thereby the pressed gas of spark and heat directly is directed to outside the transformer room.The shortcoming of preceding a kind of mode is, owing to arc channel has been subjected to stopping, so the wall of switch cabinet body and compartment must bear bigger pressure load.This just requires switch cabinet body to have higher structural strength, thereby must increase the product cost of switch cubicle.The shortcoming of a kind of mode in back is that extra extensional pipeline has not only increased product cost, but also has additionally taken big quantity space.
In addition, another problem of existing switch cubicle is that the quality of solid pressure releasing plate is bigger, when the internal arc fault takes place, need bigger pressure just can open pressure releasing plate, thereby possibly can't discharge electric arc in time, thereby increased switch cubicle by the probability of scaling loss.Simultaneously, solid pressure releasing plate also is unfavorable for the ventilation of switch cubicle.
The utility model content
The purpose of this utility model is, a kind of switch cubicle is provided.This switch cubicle scatters the spark of concentrating by the plurality of openings on the cover plate with hot pressed gas separation.Because easier quilt cooled off rapidly when the pressed gas of spark that scatters and heat was overflowed from opening, so can realize the safe release of electric arc.Even will move downward after the stopping of transformer room's ceiling upwards being subjected to through the pressed gas of spark after the above-mentioned processing and heat, also be enough to guarantee operating personnel's safety on every side.The utility model also provides a kind of switching device that adopts described switch cubicle.
Described purpose realizes by a kind of switch cubicle of the present utility model.This switch cubicle comprises the framework and the arc channel that is formed in the described framework of a metal armouring switching device.Pressure releasing plate is positioned at the top of described framework, and pivotally is connected to described framework.When the switching device operate as normal, described pressure releasing plate blocks described arc channel.Cover plate is positioned at the top of described pressure releasing plate, and is fixed to described framework.Form the space between described cover plate and the described pressure releasing plate, wherein said cover plate has plurality of openings.
According to an aspect of the present utility model, described pressure releasing plate has the hole.
According on the other hand of the present utility model, described pressure releasing plate is a wire netting.
According to one side more of the present utility model, described opening forms by the louver on the described cover plate, and described opening is towards a side of described switch cubicle.
According to another aspect of the present utility model, described opening is circular or square.
According to another aspect of the present utility model, when the switching device operate as normal, the described pressure releasing plate of two fans blocks a described arc channel.When the internal arc fault takes place when, the direction of rotation of described two fan pressure releasing plates.
Advantage of the present utility model is: compare with conventional design, though electric arc still discharges by the top of switch cabinet body, the wall of switch cabinet body and the pressure load that compartment is born have but been alleviated when the internal arc fault takes place, and impel the quick cooling of the pressed gas of extinguishing rapidly of spark and heat by separating electric arc, thereby improved the fail safe that switching device uses, reduced the product cost of switch cubicle.In addition, the ventilation effect when the utility model has also improved the switching device operate as normal is particularly under the situation of high rated current.
Description of drawings
In conjunction with the following drawings, feature and advantage of the present utility model will become clearer.Wherein:
Fig. 1 has shown the stereogram of the switch cubicle of the present utility model that is in normal operating conditions;
Fig. 2 has shown the stereogram of the switch cubicle of the present utility model when the internal arc fault takes place;
Fig. 3 has shown the side schematic view of the switch cubicle of the present utility model when the internal arc fault takes place;
Fig. 4 has shown the partial perspective view, particularly opening of Fig. 1 cover plate and the details of louver.
Embodiment
What Fig. 1, Fig. 2 and Fig. 3 showed is first kind of execution mode of switch cubicle 1 of the present utility model.
Fig. 1 has shown the switch cubicle 1 that is in normal operating conditions with the form of stereogram, has wherein removed some parts in order clearly to reflect content of the present utility model.Four fan pressure releasing plates 13 are arranged in the top of framework 15 mutually adjacently.Every fan pressure releasing plate 13 all pivotally is connected to framework 15, so that pivotally rotate with respect to framework 15 when the internal arc fault takes place, thereby arc channel 14 is opened.Cover plate 11 is positioned at the top of pressure releasing plate 13, and is fixed to framework 15.Between cover plate 11 and pressure releasing plate 13, be formed with the space.When arc channel 14 was opened, pressure releasing plate 13 entered described space.Adopt the mode of for example punching press on cover plate 11, to form plurality of openings 12 and protruding louver (as shown in Figure 4), make cover plate 11 form the form of shutters.The purpose that opening 12 is set is that when the internal arc fault takes place, opening 12 will be separated into a plurality of parts from the spark of effusion in the switch cubicle 1 and the pressed gas of heat, thereby impel spark to extinguish rapidly, and impel the pressed gas of heat to cool off fast.As long as it will be understood by those skilled in the art that and can realize above-mentioned purpose, the opening 12 of various quantity all can be used for cover plate 11, and the arrangement of opening 12 also is not limited to situation shown in Figure 1.Although be stamped into the form of shutter first kind of execution mode cover plate 11, those skilled in the art also will understand, and opening 12 also can be conventional circular hole or square hole, perhaps has other any suitable shape.
Fig. 2 has shown switch cubicle 1 when the internal arc fault takes place with the form of stereogram.Switch cubicle 1 has two arc channel 14.Although in first kind of execution mode, adopted four fan pressure releasing plates 13, and two pressure releasing plates 13 that are used to block an arc channel 14 are split, but it will be appreciated by those skilled in the art that, the quantity that is used to block the pressure releasing plate 13 of an arc channel 14 also can be greater or less than two fans, and can not adopt the mode of splitting.
Fig. 3 has shown the switch cubicle of the present utility model 1 when the internal arc fault takes place in schematic form.The pressed gas of spark and heat arrives cover plate 11 according to the direction of arrow A, derives by opening 12 separations of cover plate 11 and by the direction of the louver on the cover plate 11 according to arrow B then.Although in first kind of execution mode, cabinet door one side (being the direction of arrow B) that opening 12 is set to towards switch cubicle 1 derives the pressed gas of spark and heat, but it will be appreciated by those skilled in the art that, opening 12 towards changing according to concrete standard or user's particular requirement, thereby other side towards switch cubicle 1 derives, and perhaps faces the ceiling of transformer room.Through separation, spark can extinguish rapidly, and the cooling fast of the pressed gas of heat, thereby has avoided dangerous substance to being in switching device operating personnel's on every side possible harm.Four fan pressure releasing plates 13 rotation direction separately when in addition, being marked at arrow on the pressure releasing plate 13 among Fig. 3 and representing the internal arc fault takes place.
Unshowned second kind of execution mode of the present utility model also has extra feature except the whole essential features with first kind of execution mode, promptly described pressure releasing plate 13 has the hole.When pressure releasing plate 13 was wire netting, described hole was the mesh of wire netting.The effect in hole is when the switching device operate as normal, to allow cooling fluid to pass freely through, also alleviated the weight of pressure releasing plate 13 simultaneously, thereby when the internal arc fault takes place, only need less pressure just can open pressure releasing plate 13, make pressure be released.At this moment, the internal structure of switching device is only born less load, thereby has reduced the requirement of strength to the switch cubicle internal structure.
Although more than showed execution mode of the present utility model, described execution mode is not intended to show all possible form of the present utility model.In addition, the content in this specification is descriptive, and nonrestrictive.Those skilled in the art can make variations and modifications to the content of this specification, and do not depart from the scope of purport of the present utility model and claim.
Claims (7)
1. a switch cubicle (1) comprises the framework (15) of a metal armouring switching device and is formed at arc channel (14) in the described framework (15); Pressure releasing plate (13) is positioned at the top of described framework (15), and pivotally is connected to described framework (15), and described pressure releasing plate (13) blocks described arc channel (14) when the switching device operate as normal; Cover plate (11) is positioned at the top of described pressure releasing plate (13), and is fixed to described framework (15), forms the space between described cover plate (11) and the described pressure releasing plate (13), and it is characterized in that: described cover plate (11) has plurality of openings (12).
2. switch cubicle as claimed in claim 1 is characterized in that: described pressure releasing plate (13) has the hole.
3. switch cubicle as claimed in claim 1 is characterized in that: described pressure releasing plate (13) is a wire netting.
4. as claim 1 or 3 described switch cubicles, it is characterized in that: described opening (12) forms by the louver on the described cover plate (11), and described opening (12) is towards a side of described switch cubicle (1).
5. switch cubicle as claimed in claim 1 is characterized in that: described opening (12) is for circular or square.
6. switch cubicle as claimed in claim 1 is characterized in that: when the switching device operate as normal, the two described pressure releasing plates of fan (13) block a described arc channel (14); When the internal arc fault takes place when, the direction of rotation of described two fan pressure releasing plates (13).
7. switching device that adopts switch cubicle as claimed in claim 1 (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202705514U CN201590606U (en) | 2009-11-27 | 2009-11-27 | Switch cabinet with arc channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202705514U CN201590606U (en) | 2009-11-27 | 2009-11-27 | Switch cabinet with arc channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201590606U true CN201590606U (en) | 2010-09-22 |
Family
ID=42750398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202705514U Expired - Fee Related CN201590606U (en) | 2009-11-27 | 2009-11-27 | Switch cabinet with arc channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201590606U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103460531A (en) * | 2011-04-28 | 2013-12-18 | 三菱电机株式会社 | Switchgear |
| US9472925B2 (en) | 2013-04-26 | 2016-10-18 | General Electric Company | Switchgear housing including a pressure relief member |
| US10375843B2 (en) | 2017-06-06 | 2019-08-06 | Automatisation Grimard Inc. | Switchgear exhaust assembly |
| WO2022109992A1 (en) * | 2020-11-27 | 2022-06-02 | Abb Schweiz Ag | Apparatus for releasing arc pressure of switchgear and switchgear system |
-
2009
- 2009-11-27 CN CN2009202705514U patent/CN201590606U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103460531A (en) * | 2011-04-28 | 2013-12-18 | 三菱电机株式会社 | Switchgear |
| US9472925B2 (en) | 2013-04-26 | 2016-10-18 | General Electric Company | Switchgear housing including a pressure relief member |
| US10375843B2 (en) | 2017-06-06 | 2019-08-06 | Automatisation Grimard Inc. | Switchgear exhaust assembly |
| WO2022109992A1 (en) * | 2020-11-27 | 2022-06-02 | Abb Schweiz Ag | Apparatus for releasing arc pressure of switchgear and switchgear 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: 20100922 Termination date: 20151127 |