CN105470825B - Switchgear and its pressure relief device - Google Patents
Switchgear and its pressure relief device Download PDFInfo
- Publication number
- CN105470825B CN105470825B CN201510865046.4A CN201510865046A CN105470825B CN 105470825 B CN105470825 B CN 105470825B CN 201510865046 A CN201510865046 A CN 201510865046A CN 105470825 B CN105470825 B CN 105470825B
- Authority
- CN
- China
- Prior art keywords
- cover board
- pressure release
- release cover
- board support
- pressure
- 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
Links
- 230000006837 decompression Effects 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000452 restraining effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of switchgear and its pressure relief devices, pressure relief device of switch cabinet includes pressure release cover board, it further include pressure release cover board support, pressure release cover board support has the interconnecting piece for being connect with switch cabinet body, pressure release cover board is fastened on the pressure release cover board support, range controlling mechanism is equipped between pressure release cover board support and pressure release cover board, when generation high pressure gas makes pressure release cover board be detached from the pressure release cover board support in switchgear, range controlling mechanism makes pressure release cover board at a distance from pressure release cover board support in setting value.Pressure relief device of the present invention can ensure the normal pressure release of cabinet, simultaneously because the effect of range controlling mechanism, there is certain restraining force to pressure release cover board, so that pressure release cover board can only be detached from pressure release cover board support a certain distance, it can not be ejected and go by gas, improve the safety of switchgear to a certain extent.
Description
Technical field
The present invention relates to switchgear technical fields, and in particular to a kind of switchgear and its pressure relief device.
Background technology
In switchgear operational process, when insulation ag(e)ing, human operational error, switchgear design defect, once
Short trouble may occur for circuit, generate the short circuit current of tens thousand of peaces, which can generate high temperature and pressure gas in moment
Body, if failure air-flow cannot effectively discharge in a short time, can cause switchgear to burst, to phase since cabinet is narrow
Adjacent switchgear and staff cause major injury, cause serious accident.Therefore, switchgear can be all equipped in design
Pressure-relief measure, for example, in the prior art frequently at the top of switchgear by with setting intensity bolted cover plate, let out
Bolt failure when pressure, cover board open implementation pressure release.But it is fixed using bolt, reliability is not high, when short trouble occurs,
Bolt may not be destroyed, to play the role of pressure release；Alternatively, when over pressure, cover board is possible to high
Body of calming the anger is rushed out, and Field Force is hurt.
The problem of on how to design pressure relief device, Chinese patent CN102496877B（Authorized announcement date 2015.05.20）
A kind of pressure relief apparatus of high voltage switch cabinet is disclosed, which includes cabinet, and decompression cover is equipped with above the bus-bar room of cabinet,
Decompression cover is connect with bus-bar room by metallic screw.Woven wire is equipped with below decompression cover, woven wire is welded on decompression cover,
Woven wire can reinforce the intensity for being equipped with the decompression cover at relief hole, when preventing busbar chamber internal pressure excessive, decompression cover position
It is broken through in the position of relief hole.Although being provided with woven wire, woven wire is connected to below decompression cover, when in cabinet
When portion's pressure is excessive, the problem of decompression cover is rushed out still is will produce, safety is not high.In addition, in cabinet internal pressure mistake
When big, if pressure is all discharged from relief hole, the speed released stress is slower, it is likely that can damage zero in cabinet
Part.
Invention content
The object of the present invention is to provide a kind of pressure relief device of switch cabinet, to solve the pressure relief device of existing switchgear in cabinet
The low technical problem of safety caused by pressure release cover board can be rushed out when internal pressure is excessive.The present invention also provides one simultaneously
Kind uses the switchgear of the pressure relief device.
In order to achieve the goal above, the technical solution of pressure relief device of switch cabinet is as follows in the present invention：Pressure relief device of switch cabinet,
Further include pressure release cover board support including pressure release cover board, the pressure release cover board support has the company for being connect with switch cabinet body
Socket part, the pressure release cover board are fastened on the pressure release cover board support, are equipped between the pressure release cover board support and pressure release cover board
Range controlling mechanism, when generation high pressure gas makes pressure release cover board be detached from the pressure release cover board support in switchgear, stroke control
Mechanism processed makes pressure release cover board at a distance from pressure release cover board support in setting value.
The range controlling mechanism is travel switch, and the travel switch is arranged on the pressure release cover board support, described
The fixing end of travel switch, movable end are connected on the pressure release cover board support and pressure release cover board.
There is the pressure release cover board support placed cavity, travel switch to be mounted in the placed cavity, the pressure release cover board branch
Frame have for travel switch movable end by through-hole.
The pressure release cover board is equipped with location structure, and the pressure release cover board support is equipped in pressure release cover board and pressure release cover board
Location fit structure when support fastening for the location structure location fit.
The pressure release cover board support is equipped with latching electromagnet, and the latching electromagnet includes electromagnet ontology and flexible work
Dynamic portion, the electromagnet ontology are connected on the pressure release cover board support, the telescopic movable portion and the pressure release cover board pushing tow
Cooperation, when pressure release cover board is fastened on pressure release cover board support, the telescopic movable portion is in retracted mode.
Switchgear of the present invention adopts the following technical scheme that switchgear includes cabinet and the pressure relief device on cabinet, is let out
Pressure device includes pressure release cover board, and pressure relief device further includes pressure release cover board support, the pressure release cover board support have for switch
The interconnecting piece of cabinet cabinet connection, the pressure release cover board is fastened on the pressure release cover board support, the pressure release cover board support with let out
It is equipped with range controlling mechanism between cover clamp, makes pressure release cover board be detached from the pressure release cover board when generating high pressure gas in switchgear
When holder, range controlling mechanism makes pressure release cover board at a distance from pressure release cover board support in setting value.
The range controlling mechanism is travel switch, and the travel switch is arranged on the pressure release cover board support, described
The fixing end of travel switch, movable end are connected on the pressure release cover board support and pressure release cover board.
There is the pressure release cover board support placed cavity, travel switch to be mounted in the placed cavity, the pressure release cover board branch
Frame have for travel switch movable end by through-hole.
The pressure release cover board is equipped with location structure, and the pressure release cover board support is equipped in pressure release cover board and pressure release cover board
Location fit structure when support fastening for the location structure location fit.
The pressure release cover board support is equipped with latching electromagnet, and the latching electromagnet includes electromagnet ontology and flexible work
Dynamic portion, the electromagnet ontology are connected on the pressure release cover board support, the telescopic movable portion and the pressure release cover board pushing tow
Cooperation, when pressure release cover board is fastened on pressure release cover board support, the telescopic movable portion is in retracted mode.
Beneficial effects of the present invention：After pressure relief device of switch cabinet of the present invention is applied on switchgear, when occurring in switchgear
When interior arcing, the high pressure gas of generation can jack up pressure release cover board, make pressure release cover board be detached from pressure release cover board support it is certain away from
From progress pressure release.Simultaneously because the effect of range controlling mechanism, has pressure release cover board certain restraining force so that pressure release cover board
It can only be detached from pressure release cover board support a certain distance, can not be ejected and go by gas, hurt the worker of surrounding, to a certain extent
Improve the safety of switchgear.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of switchgear of the present invention（Part-structure）；
Fig. 2 is the vertical view of the pressure release cover board in Fig. 1；
Fig. 3 is the A-A sectional views of Fig. 2；
Fig. 4 is the structural front view of the pressure release cover board support in Fig. 1；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the upward view of Fig. 4.
Specific implementation mode
The embodiment of switchgear of the present invention：As shown in figures 1 to 6, switchgear, including cabinet 5 and letting out above cabinet 5
Pressure device, pressure relief device include pressure release cover board 1, pressure release cover board support 4, and pressure release cover board support 4, which has, to be used for and switch cabinet body
The interconnecting piece 9 of connection, pressure release cover board 1 are fastened on pressure release cover board support 4, and row is equipped between pressure release cover board support and pressure release cover board
Process control mechanism, when generation high pressure gas makes pressure release cover board be detached from the pressure release cover board support in switchgear, Stroke Control
Mechanism makes pressure release cover board at a distance from pressure release cover board support in setting value.Range controlling mechanism is travel switch 3, stroke
Switch 3 is arranged on pressure release cover board support 4, and the fixing end of travel switch, movable end are connected to pressure release cover board support and let out
On cover clamp.After travel switch is set, when interior unit cell model occurs for cabinet, high pressure gas, high pressure gas pressure are generated
Power makes pressure release cover board act and is detached from pressure release cover board support, but pressure release cover board will not fly out, and is limited by the stroke of travel switch
System, can only be detached from a certain distance, pressure release gap be will appear between pressure release cover board and pressure release cover board support, and then can be with pressure release.
For ease of installing travel switch, by aluminum clad zinc plate bending and molding, pressure release cover board support has to be put pressure release cover board support 4
Set chamber, travel switch is mounted in placed cavity, pressure release cover board support have the movable end for travel switch by through-hole.Pressure release
There is cover board support upper and lower two flange, upper overturning and lower flange, upper overturning and lower flange to be equipped with screw hole, formed for
The interconnecting piece of cabinet connection.
Further, in order to enable pressure release cover board and pressure release cover board support are when fastening, position after being easily installed and installing
It does not tamper, location structure 7 is equipped on pressure release cover board, pressure release cover board support 4 is equipped in pressure release cover board and pressure release cover board support
Location fit structure 10 when fastening for the location structure location fit.On the mounting plate of the upside of pressure release cover board support 4
Equipped with the bulge-structure to raise up, which forms the location fit structure.Pressure release cover board 1 is also by covering aluminium zinc
Plate bending and molding, pressure release cover board 1 include cover board body, and the left side of cover board body is first turned over downwards, then is turned down to the left；Cover board body
Right side be first turned over downwards, then turn down to the right.The front and rear sides of cover board body flip up to form forward and backward turn edge.Pressure release cover board
The left and right sides be equipped with pressure release cover board support, therefore, the left and right sides of pressure release cover board must also be equipped with location structure.Decompression cover
The left side time interval of plate is set there are three location structure, and right side time interval sets that there are three location structures.Location structure 7 is by being set to
The location hole to turn edge on 8 of cover board body turned down to the left or to the right is formed.It is fastened in pressure release cover board 1 and pressure release cover board support 4
When, the location hole on pressure release cover board 1 and the bulge-structure location fit on pressure release cover board support 4, in place convenient for Fast Installation.
When to prevent failure, the problem of pressure relief device is failure to actuate.It is further improved, is set on pressure release cover board support 4
Latching electromagnet 2 is set, latching electromagnet 2 includes electromagnet ontology and telescopic movable portion, and electromagnet ontology is connected to pressure release cover board
On holder 4, it is located in the placed cavity of pressure release cover board support.Telescopic movable portion coordinates with 1 pushing tow of pressure release cover board, in pressure release cover board 1
When being fastened on pressure release cover board support 4, telescopic movable portion is in retracted mode.In normal condition, by the work of latching electromagnet
With so that pressure release cover board is closely joined together with pressure release cover board support；Ensure that pressure release cover board is only opened in generation when arcing,
It will not malfunction.When short trouble occurs for switchgear, and interior arcing occurs, latching electromagnet dead electricity, latching electromagnet stretches
Movable part stretches out, and pressure release cover board 1 is bounced.Under the action of internal high temperature and high pressure gas, pressure release cover board is open-top.Pressure release cover board
After 1 is jacked up, pressure release is carried out, while travel switch 3 transmits danger signal, dangerous point to control centre, travel switch mainly rises
The effect of limit and feedback signal.Improve the security performance of equipment.
Further, in order to not influence the normal ventilation and heat function of switch cabinet, multigroup dissipate is provided on pressure release cover board
Hot hole 6.
In other embodiments, link mechanism can also be used in range controlling mechanism, and link mechanism is hinged on one including two
The connecting rod risen, two connecting rods are respectively on pressure release cover board, pressure release cover board support, and under normal condition, link mechanism, which is in, closes up shape
State does not interfere the fastening of pressure release cover board to be installed, and after pressure release cover board is blocked electromagnet jack-up, link mechanism action, connecting rod turns
It is dynamic so that pressure release cover board can be detached from pressure release cover board support a certain distance.In other embodiments, a company can also be passed through
The both ends of bar, connecting rod are hingedly connected on pressure release cover board and pressure release cover board support.
In the present embodiment, it is one group of rectangular opening, pressure release cover board that the location structure on pressure release cover board, which uses location hole, location hole,
The fit structure that is set on holder is protrusion, and protrusion is quadrangular.In other embodiments, location structure and location fit structure
Also interchangeable, for example, corresponding location hole is arranged on pressure release cover board support, protrusion is set on pressure release cover board and is matched as positioning
Close structure.Location hole can be configured as circular hole, and matched protrusion is cylinder.In other embodiments, determine on pressure release cover board
The upper pin hole of setting can also be used in bit architecture, and corresponding lower pin hole is arranged on pressure release cover board support, utilizes positioning when mounted
Above and below pin while insertion in corresponding upper pin hole, lower pin hole.
The embodiment of pressure relief device of switch cabinet of the present invention, pressure relief device and the pressure relief device in above-mentioned switchgear embodiment
Structure is identical, and specific implementation mode is no longer described in detail.Pressure relief device is equally applicable to the side of cabinet, and limits in this present embodiment
Set on the top of cabinet.
Claims (10)
1. pressure relief device of switch cabinet, including pressure release cover board, it is characterised in that：Further include pressure release cover board support, the pressure release cover board
There is holder the interconnecting piece for being connect with switch cabinet body, the pressure release cover board to be fastened on the pressure release cover board support, institute
It states and is equipped with range controlling mechanism between pressure release cover board support and pressure release cover board, make decompression cover when generating high pressure gas in switchgear
When plate is detached from the pressure release cover board support, range controlling mechanism makes pressure release cover board at a distance from pressure release cover board support in setting
In value.
2. pressure relief device of switch cabinet according to claim 1, it is characterised in that：The range controlling mechanism is opened for stroke
It closes, the travel switch is arranged on the pressure release cover board support, and the fixing end of the travel switch, movable end are connected to
On the pressure release cover board support and pressure release cover board.
3. pressure relief device of switch cabinet according to claim 2, it is characterised in that：The pressure release cover board support, which has, to be placed
Chamber, travel switch are mounted in the placed cavity, the pressure release cover board support have the movable end for travel switch by it is logical
Hole.
4. pressure relief device of switch cabinet according to claim 3, it is characterised in that：The pressure release cover board is equipped with positioning and ties
Structure, the pressure release cover board support, which is equipped with, matches when pressure release cover board is fastened with pressure release cover board support for location structure positioning
The location fit structure of conjunction.
5. pressure relief device of switch cabinet according to any one of claims 1 to 4, it is characterised in that：The pressure release cover board support
It is equipped with latching electromagnet, the latching electromagnet includes electromagnet ontology and telescopic movable portion, the electromagnet ontology connection
On the pressure release cover board support, the telescopic movable portion coordinates with the pressure release cover board pushing tow, is fastened on and lets out in pressure release cover board
When on gland board mount, the telescopic movable portion is in retracted mode.
6. switchgear, including cabinet and the pressure relief device on cabinet, pressure relief device include pressure release cover board, it is characterised in that：
Pressure relief device further includes pressure release cover board support, and the pressure release cover board support has the interconnecting piece for being connect with switch cabinet body,
The pressure release cover board is fastened on the pressure release cover board support, and stroke control is equipped between the pressure release cover board support and pressure release cover board
Mechanism processed, when generation high pressure gas makes pressure release cover board be detached from the pressure release cover board support in switchgear, range controlling mechanism
So that pressure release cover board is at a distance from pressure release cover board support in setting value.
7. switchgear according to claim 6, it is characterised in that：The range controlling mechanism is travel switch, the row
Cheng Kaiguan is arranged on the pressure release cover board support, and the fixing end of the travel switch, movable end are connected to the pressure release
On cover board support and pressure release cover board.
8. switchgear according to claim 7, it is characterised in that：There is the pressure release cover board support placed cavity, stroke to open
Close be mounted on the placed cavity in, the pressure release cover board support have for travel switch movable end by through-hole.
9. switchgear according to claim 8, it is characterised in that：The pressure release cover board is equipped with location structure, described to let out
Gland board mount is equipped with the positioning for the location structure location fit when pressure release cover board and pressure release cover board support are fastened
Fit structure.
10. according to claim 6 to 9 any one of them switchgear, it is characterised in that：The pressure release cover board support is equipped with and closes
Electromagnet is locked, the latching electromagnet includes electromagnet ontology and telescopic movable portion, and the electromagnet ontology is connected to described let out
On gland board mount, the telescopic movable portion coordinates with the pressure release cover board pushing tow, and pressure release cover board branch is fastened in pressure release cover board
When on frame, the telescopic movable portion is in retracted mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865046.4A CN105470825B (en) | 2015-12-01 | 2015-12-01 | Switchgear and its pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510865046.4A CN105470825B (en) | 2015-12-01 | 2015-12-01 | Switchgear and its pressure relief device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105470825A CN105470825A (en) | 2016-04-06 |
| CN105470825B true CN105470825B (en) | 2018-08-03 |
Family
ID=55608274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510865046.4A Expired - Fee Related CN105470825B (en) | 2015-12-01 | 2015-12-01 | Switchgear and its pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105470825B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706763A (en) * | 2017-09-30 | 2018-02-16 | 扬中市华荣电器设备有限公司 | Base pressure switch cubicle arc-control device |
| CN111490474B (en) * | 2020-04-30 | 2021-08-17 | 杭州施江银电气成套有限公司 | Distribution box convenient for removing foreign matters |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931179A (en) * | 2010-08-12 | 2010-12-29 | 河南省电力公司驻马店供电公司 | Directional explosion-proof pressure-relieving device for middle-placed cabinet |
| CN201868774U (en) * | 2010-11-18 | 2011-06-15 | 华仪电气股份有限公司 | Self-resetting turnover plate type pressure relief device |
| CN203850624U (en) * | 2014-04-23 | 2014-09-24 | 上海天正机电(集团)有限公司 | Switch cabinet pressure-release state collector |
| CN204190248U (en) * | 2014-11-26 | 2015-03-04 | 枣庄市鼎盛电气设备有限责任公司 | One is convenient to portable metal armored withdrawal-type switching device |
-
2015
- 2015-12-01 CN CN201510865046.4A patent/CN105470825B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931179A (en) * | 2010-08-12 | 2010-12-29 | 河南省电力公司驻马店供电公司 | Directional explosion-proof pressure-relieving device for middle-placed cabinet |
| CN201868774U (en) * | 2010-11-18 | 2011-06-15 | 华仪电气股份有限公司 | Self-resetting turnover plate type pressure relief device |
| CN203850624U (en) * | 2014-04-23 | 2014-09-24 | 上海天正机电(集团)有限公司 | Switch cabinet pressure-release state collector |
| CN204190248U (en) * | 2014-11-26 | 2015-03-04 | 枣庄市鼎盛电气设备有限责任公司 | One is convenient to portable metal armored withdrawal-type switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105470825A (en) | 2016-04-06 |
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Granted publication date: 20180803 Termination date: 20191201 |