CN102231487A - Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet - Google Patents
Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet Download PDFInfo
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- CN102231487A CN102231487A CN2011100947879A CN201110094787A CN102231487A CN 102231487 A CN102231487 A CN 102231487A CN 2011100947879 A CN2011100947879 A CN 2011100947879A CN 201110094787 A CN201110094787 A CN 201110094787A CN 102231487 A CN102231487 A CN 102231487A
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Abstract
The invention relates to a reliable pressure-relief and antibump apparatus of a low-voltage draw-out switch cabinet, wherein the apparatus has a simple structure; and the operation of the equipment is safe according to the invention. The apparatus has a cabinet body. A plurality of unit cells are arranged in the cabinet body; longitudinal pressure-relief channels are arranged at two sides of the cabinet body; the pressure-relief channels are communicated with pressure-relief devices in the unit cells, wherein the pressure-relief devices comprises pressure-relief baffles that are installed on separator boards of the unit cells and active pressure-relief baffles that are installed on the pressure-relief baffles actively. According to the invention, an articulated form is applied to a structure design, so that the pressure-relief and antibump apparatus is flexible and reliable when the apparatus is opened and closed. The apparatus is composed of sheet metal workpieces and self-tapping screws and has good craftiness. In addition, the apparatus has unique design concept and a blank of the low-voltage switch cabinet product can be filled in the aspect. Therefore, the apparatus provided in the invention has high popularization application value.
Description
Technical field
Patent of the present invention relates to a kind of pressure release riot gear of low pressure drawer-type switch cabinet.
Background technology
At present when the outlet functional unit cell (hereinafter to be referred as unit cell) of low pressure drawer-type switch cabinet when outgoing line circuit is short-circuited fault, faulty circuit is excised in the circuit breaker disjunction of installing in the cell.
Circuit breaker is in the breaking course of excision faulty circuit, and moment will produce the go out guard shield ejection of very big electric arc from circuit breaker, because the effect of electric arc, air dielectric is ionized, and moment produces high temperature and high pressure gas in unit cell.
At present the top board at structure cabinet top above the circuit breaker cart chamber of the home and abroad high-tension switch cabinet pressure release riot gear of producing is provided with a hole, anti-riot plate riveted or bolted on top board.This structure is that single cabinet has only a circuit breaker cart chamber, and when fault generation thing, the gases at high pressure in the circuit breaker cell can be released into destructive the opening cruelly just of anti-riot plate outside the cabinet.
In the low pressure drawer-type switch cabinet, feeder cabinet generally be a plurality of unit cell are arranged in single cabinet go out line loop (being generally 3～9 loops), if the gases at high pressure that produce when any unit cell is broken down discharge outside the cabinet, difficult on structural design.Have only at present MNS type low-tension switch cabinet in structural design to having done processing on this problem, it is that the gases at high pressure that produce when utilizing fault are with the extrapolated about 8～10mm of the drawer body in the unit cell, pressure release is carried out in the slit that forms about 8～10mm between drawer mouth periphery and cabinet, because the contact pressure between the drawer dynamic/static contact and the weight of drawer body, the force of sliding friction of drawer body and unit cell bottom, make cell inner high voltage gas constitute very big resistance to the outside thrust of drawer body, need treat that gas pressure in the unit cell increases can pressure release to overcoming behind the above-mentioned resistance, moreover the slit of 8～10mm is too little, it can only account for 12% of drawer open area for the perforated area of pressure release, therefore form bottleneck effect, cause the pressure release effect relatively poor, and unit cell inner structure parts are had certain destructiveness.The low-tension switch cabinet of other model (for example GCK type, GCS type etc.) is not all taked the anti-riot measure of pressure release in structural design, therefore after above-mentioned fault takes place, cause the phenomenon that structure member is out of shape and the cell door is opened cruelly in the unit cell, it is bad that not only controller switching equipment is subjected to merit, also the person and safe operation caused very big threat simultaneously.
Summary of the invention
The purpose of patent of the present invention provides a kind of simple in structure exactly for addressing the above problem, and makes the pressure release riot gear of the safe and reliable low pressure drawer-type switch cabinet of equipment operation.
For achieving the above object, the present invention adopts following technical scheme:
A kind of pressure release riot gear of low pressure drawer-type switch cabinet, it comprises the vertical pressure release passage that connects all unit cell both sides in the cabinet, is equipped with pressure release baffle plate and pressure release moveable splash board in each unit cell side; The pressure release moveable splash board is movably arranged on the pressure release baffle plate, is provided with resetting means in both joints.
Two ends, described pressure release moveable splash board bottom are provided with self-tapping screw, and the pressure release baffle plate is provided with supporting bracket, and supporting bracket is provided with earhole, and self-tapping screw is connected with earhole, is provided with resetting means on self-tapping screw.
Described resetting means is a torsion spring.
The pressure release riot gear of low pressure drawer-type switch cabinet of the present invention, it comprises that the cabinet both sides vertically connect the pressure release passage of all unit cell, unit cell dividing plate, self-tapping screw, pressure release baffle plate, pressure release moveable splash board, torsion spring etc.
It is hinged that pressure release baffle plate and pressure release moveable splash board are put the self-tapping screw and the other end self-tapping screw of torsion spring, can make that the coaxial line with two self-tapping screws serves as that axle relatively rotates between pressure release baffle plate and pressure release moveable splash board.The pressure release baffle plate is fixed on the dividing plate of unit cell with thread tapping again, will isolate to get up between the pressure release passage of unit cell and vertical perforation.
Operation principle of the present invention is as follows:
1. under the state of normal condition, the pressure release moveable splash board of the unit cell both sides left side of torsion spring again exerts oneself to reset and (see accompanying drawing 1) in the same plane of pressure release baffle plate down.
2. when being short-circuited fault, under the gases at high pressure effect that the pressure release moveable splash board of unit cell both sides produces in unit cell, the active force that overcomes torsion spring is opened, and gases at high pressure are in the pressure relief opening of opening enters the pressure release passage of cabinet both sides (seeing accompanying drawing 2).
3. be provided with the outlet of vented exhaust at the top cover of cabinet, the gases at high pressure that enter this moment in the pressure release passage of cabinet both sides just can go upward to along vertical pressure release passage outside the vented exhaust mouth discharge cabinet (seeing accompanying drawing 3).
4. after the gases at high pressure in unit cell were discharged cell, its internal pressure returned to normal, and the pressure release moveable splash board just returns to the state (seeing accompanying drawing 1) before fault takes place under the active force of torsion spring.
The invention has the beneficial effects as follows: structurally having designed can be for the pressure release passage of discharging gases at high pressure, this passage is arranged in the both sides of a plurality of unit cell of cabinet, the pressure release moveable splash board that the gases at high pressure that wherein any unit cell is produced when breaking down are opened the cell both sides enters the both sides pressure release passage, and upwards push up outside the discharge cabinet to cabinet through this passage, this moment, the pressure release moveable splash board of other unit cell both sides of normally moving was in closure state, therefore when any unit cell breaks down, do not influence the unit cell that other is moving.
Adopted hinged form between pressure release moveable splash board and pressure release baffle plate, made its unlatching, closed flexible, reliable.Need not to treat the increased pressure in the cell, until it is destructively opened cruelly.But when fault generation initial instant gas pressure is less, just can open it, fault just can be nondestructive from horizontal reset after getting rid of.
Unit cell pressure release bore size is big.Only one-sided perforated area accounts for 50% of one-sided baffle plate area, and both sides all are provided with identical pressure release perforate, the bottleneck when therefore not existing unit cell inner high voltage gas to arrange cruelly.
Device is to be assembled by the panel beating part, and design is unique, and is reasonable in design, good manufacturability, but have the involution function.
In sum, the present invention has filled up low-tension switch cabinet product blank in this respect, and very high popularizing value is arranged.
Description of drawings
Fig. 1 is the structural representation under the state of this device normal condition;
Fig. 1 a is the partial enlarged drawing of Fig. 1;
Fig. 2 is the status architecture schematic diagram of this device when the pressure release moveable splash board is opened when the short trouble;
Fig. 3 discharges schematic diagram outside the cabinet for this device pressure release passage inner high voltage gas when the short trouble;
Fig. 3 a is the axonometric drawing of Fig. 3.
Wherein, 1. unit cell dividing plate, 2. self-tapping screw, 3. pressure release baffle plate, 4. pressure release moveable splash board, 5. torsion spring, 6. pressure release passage.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, Fig. 1 a, Fig. 2, Fig. 3, Fig. 3 a, a kind of pressure release riot gear of low pressure drawer-type switch cabinet, it comprises cabinet, several unit cell are installed in cabinet, be provided with pressure release passage 6 longitudinally in the cabinet both sides, pressure release passage 6 communicates with the pressure relief device of unit cell, and described pressure relief device is the pressure release baffle plate 3 that is installed in unit cell dividing plate 1, and is movably arranged on the pressure release moveable splash board 4 on the pressure release baffle plate 3.
Two ends, described pressure release moveable splash board 4 bottom are respectively equipped with the supporting bracket of band earhole, and pressure release moveable splash board 4 is connected with the earhole of pressure release baffle plate 3 by self-tapping screw 2, are provided with torsion spring 5 simultaneously on self-tapping screw 2.Pressure release moveable splash board 4 just can be opened to the pressure release passage direction according to the rotational from 2 formation of two thread-cutting screws.
Pressure release baffle plate 3 is fixed on the unit cell dividing plate 1.
Claims (3)
1. the pressure release riot gear of a low pressure drawer-type switch cabinet is characterized in that, it comprises the vertical pressure release passage that connects all unit cell both sides in the cabinet, is equipped with pressure release baffle plate and pressure release moveable splash board in each unit cell side; The pressure release moveable splash board is movably arranged on the pressure release baffle plate, is provided with resetting means in both joints.
2. the pressure release riot gear of low pressure drawer-type switch cabinet as claimed in claim 1, it is characterized in that, two ends, described pressure release moveable splash board bottom are provided with self-tapping screw, the pressure release baffle plate is provided with supporting bracket, supporting bracket is provided with earhole, self-tapping screw is connected with earhole, is provided with resetting means on self-tapping screw.
3. the pressure release riot gear of low pressure drawer-type switch cabinet as claimed in claim 1 or 2 is characterized in that, described resetting means is a torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100947879A CN102231487A (en) | 2011-04-15 | 2011-04-15 | Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100947879A CN102231487A (en) | 2011-04-15 | 2011-04-15 | Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102231487A true CN102231487A (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100947879A Pending CN102231487A (en) | 2011-04-15 | 2011-04-15 | Pressure-relief and antibump apparatus of low-voltage draw-out switch cabinet |
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| CN (1) | CN102231487A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848439A (en) * | 2016-06-12 | 2016-08-10 | 刘高志 | Explosion-proof control cabinet |
| CN112448298A (en) * | 2019-08-30 | 2021-03-05 | Ls电气株式会社 | Ventilation system of power distribution cabinet |
| CN112736708A (en) * | 2020-12-30 | 2021-04-30 | 湖南平高开关有限公司 | Box transformer substation capable of avoiding internal arcing fault risk |
| CN113725767A (en) * | 2021-08-25 | 2021-11-30 | 重庆建树电力设备制造有限公司 | Draw-out type switch cabinet |
| CN114709745A (en) * | 2022-04-29 | 2022-07-05 | 山东汇能电气有限公司 | Pressure relief structure and pressure relief method for safety explosion prevention of inflatable cabinet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2457766Y (en) * | 2001-01-11 | 2001-10-31 | 包懿 | Novel fixed high voltage switch cabinet |
| CN1377111A (en) * | 2001-03-20 | 2002-10-30 | 西门子公司 | Power equipment with voltage reducing channel |
| CN2521797Y (en) * | 2001-11-30 | 2002-11-20 | 汕头经济特区南粤电器有限公司 | Indoor metal-clad with drawable switch equipment |
| CN101546890A (en) * | 2009-05-11 | 2009-09-30 | 福州天宇电气股份有限公司 | Double layer switch installation with multi-pressure release passages |
| CN202009188U (en) * | 2011-04-15 | 2011-10-12 | 山东爱普电气设备有限公司 | Relief explosion-proof device of low-voltage drawer type switch cabinet |
-
2011
- 2011-04-15 CN CN2011100947879A patent/CN102231487A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457766Y (en) * | 2001-01-11 | 2001-10-31 | 包懿 | Novel fixed high voltage switch cabinet |
| CN1377111A (en) * | 2001-03-20 | 2002-10-30 | 西门子公司 | Power equipment with voltage reducing channel |
| CN2521797Y (en) * | 2001-11-30 | 2002-11-20 | 汕头经济特区南粤电器有限公司 | Indoor metal-clad with drawable switch equipment |
| CN101546890A (en) * | 2009-05-11 | 2009-09-30 | 福州天宇电气股份有限公司 | Double layer switch installation with multi-pressure release passages |
| CN202009188U (en) * | 2011-04-15 | 2011-10-12 | 山东爱普电气设备有限公司 | Relief explosion-proof device of low-voltage drawer type switch cabinet |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848439A (en) * | 2016-06-12 | 2016-08-10 | 刘高志 | Explosion-proof control cabinet |
| CN105848439B (en) * | 2016-06-12 | 2019-03-19 | 庄立 | A kind of explosion proof control case |
| CN112448298A (en) * | 2019-08-30 | 2021-03-05 | Ls电气株式会社 | Ventilation system of power distribution cabinet |
| CN112448298B (en) * | 2019-08-30 | 2023-01-06 | Ls电气株式会社 | Ventilation system of power distribution cabinet |
| CN112736708A (en) * | 2020-12-30 | 2021-04-30 | 湖南平高开关有限公司 | Box transformer substation capable of avoiding internal arcing fault risk |
| CN112736708B (en) * | 2020-12-30 | 2023-03-21 | 湖南平高开关有限公司 | Box transformer substation capable of avoiding internal arcing fault risk |
| CN113725767A (en) * | 2021-08-25 | 2021-11-30 | 重庆建树电力设备制造有限公司 | Draw-out type switch cabinet |
| CN113725767B (en) * | 2021-08-25 | 2024-08-02 | 惠州市博信电气设备有限公司 | Draw-out type switch cabinet |
| CN114709745A (en) * | 2022-04-29 | 2022-07-05 | 山东汇能电气有限公司 | Pressure relief structure and pressure relief method for safety explosion prevention of inflatable cabinet |
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Application publication date: 20111102 |