CN107086484B - Switchgear and its pressure relief - Google Patents
Switchgear and its pressure relief Download PDFInfo
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- CN107086484B CN107086484B CN201710245759.XA CN201710245759A CN107086484B CN 107086484 B CN107086484 B CN 107086484B CN 201710245759 A CN201710245759 A CN 201710245759A CN 107086484 B CN107086484 B CN 107086484B
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- Prior art keywords
- pressure relief
- plate
- coupling part
- relief opening
- pressure
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- 230000008878 coupling Effects 0.000 claims abstract description 118
- 238000010168 coupling process Methods 0.000 claims abstract description 118
- 238000005859 coupling reaction Methods 0.000 claims abstract description 118
- 238000005452 bending Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 2
- 239000004677 Nylon Substances 0.000 description 8
- 229920001778 nylon Polymers 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000006837 decompression Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The present invention relates to field of switch equipment, in particular to switchgear and its pressure relief.Switchgear includes cabinet body, cabinet body is equipped with pressure relief opening, pressure relief plate is provided at pressure relief opening, the pressure relief plate has pressure release coupling part and for making pressure relief plate connect holding coupling part on the cabinet always, is equipped at the pressure relief opening and is used for pressure relief opening towards pressure relief opening side close to keeping the side of coupling part to form the foldable shutter blocked in pressure relief plate；Or be equipped at the pressure relief opening and be in directing plate of the pressure relief plate towards pressure relief opening side, the directing plate is equipped with for keeping the subregional guide surface of interconnecting piece for separate on arcing energy drag pressure relief plate in cabinet body；Or pressure release coupling part is less than holding coupling part at a distance from pressure relief opening so that pressure relief opening is relative to pressure relief plate arranged off-centre at a distance from pressure relief opening, solves the problems, such as that there are security risks for current pressure relief.
Description
Technical field
The present invention relates to field of switch equipment, in particular to switchgear and its pressure relief.
Background technique
The electrical arcing generated during internal faults of switch cabinet arc burning includes pressure effect, fuel factor, radiation harmony
Effect.These electrical arcing energy are huge, will damage switchgear, and damage to neighbouring staff.Each switchgear
Producer takes the various measures for reinforcing switchgear, carrys out Protection switch cabinet arcing failure, in addition to the system of strict guarantee switchgear
It makes quality, carry out correct maintenance and operation accident according to related regulation, it is necessary to the pressure relief of design configurations quick acting, one
Internal arcing failure occurs for denier.Correctly safeguarded in addition to the manufacturing quality of strict guarantee switchgear, according to related regulation and
Other than operation, it is necessary to the pressure relief of design configurations quick acting, once internal arcing failure occurs can quick guide energy
Release protects equipment and personnel to exempt to come to harm to greatest extent.
At present in Medium Voltage Switchgear industry, generally use following two pressure relief mode: the first mode is cabinet body top
Plate opens rectangle pressure relief opening, installs one flat plate decompression cover additional above pressure relief opening, and one end of plate decompression cover is solid with metal bolts
Fixed, the other end is fixed with nylon screw, and the plate decompression cover of this relief mode is bonded fixation on pressure relief opening, works as switchgear
When arcing failure occurs for inside, need plate decompression cover impact deformation by force could open pressure release passage, and open channel
Inside switch cabinet arcing fault energy, cannot be discharged to outside cabinet, there are security risks by the limited area of mouth in time.
Second of mode is that cabinet body top plate opens up rectangle pressure relief opening, and pressure relief plate is equipped with above hole, and pressure relief plate is box shaped,
Pressure relief plate includes keeping coupling part and pressure release coupling part, and coupling part is kept to be fixed on cabinet body always during pressure release
On, it prevents pressure relief plate from flying out and personnel or equipment is caused to damage, keep coupling part that can be hinged on the top of cabinet body by hinge
On plate, pressure release coupling part would generally release under the action of arcing energy during the pressure relief process opens pressure release with the fixed of cabinet body
Mouth carries out pressure release, and usual pressure release coupling part is fixed on the cabinet by other low-intensity connectors such as nylon screws, and pressure release connects
Socket part point can also be fixed on pressure relief opening opening's edge by weak coupling part.Arcing occurs for the inside switch cabinet of this relief mode
When failure, arcing energy can thrust the nylon screw of pressure release coupling part under normal circumstances, pressure relief plate around hinge it is hinged
Point rotation, pressure relief opening fully opens carry out pressure release, such as Authorization Notice No. is CN205944772, authorized announcement date is
2017.02.08 a kind of switchgear pressure relief mechanism disclosed in Chinese patent, including cover board and hinge pass through hinge on the left of cover board
Chain apparatus is fixed on the right side of cover board by low-intensity connector and cabinet body, cover plate constitutes one kind at the window at the top of cabinet body
Pressure relief plate, the left side of cover board are used to constitute the holding coupling part of pressure relief plate, the right side of cover board with the hinged part of cabinet body
For the pressure release coupling part of pressure relief plate to be made up of the part that low-intensity connector is connect with cabinet body.In inside switch cabinet arcing
When, the cover board of switchgear pressure relief mechanism can overturn the purpose for realizing pressure release along hinge.But the impact being subject in pressure relief plate lid
When power is greater than the fixing intensity of hinge, hinge can be pulled off, and entire pressure relief plate is made to fly out before rotating, and it is hidden to there is safety
Suffer from.
Summary of the invention
The object of the present invention is to provide a kind of pressure release structure for switch cabinet, and to solve current pressure relief, there are security risks
The problem of；In addition, the object of the invention is also to provide a kind of switchgears using above-mentioned pressure relief.
To achieve the above object, the technical solution of switchgear of the invention are as follows: switchgear includes cabinet body, and cabinet body is equipped with and lets out
Mouth is pressed, pressure relief plate is provided at pressure relief opening, the pressure relief plate has pressure release coupling part and for being connected to pressure relief plate always
Holding coupling part on cabinet body, be equipped at the pressure relief opening in pressure relief plate be used for towards pressure relief opening side it is close to pressure relief opening
The side of coupling part is kept to form the foldable shutter blocked；Or it is equipped at the pressure relief opening and is in pressure relief plate direction
The directing plate of pressure relief opening side, the directing plate are equipped with for will connect on arcing energy drag pressure relief plate far from holding in cabinet body
The subregional guide surface of socket part；Or pressure release coupling part be less than at a distance from pressure relief opening keep coupling part and pressure relief opening away from
From so that pressure relief opening relative to pressure relief plate arranged off-centre.
The pressure relief plate includes the ontology and the bending part that connect with ontology towards pressure relief opening, and the pressure relief further includes
Fixed supporting element on the cabinet, the supporting element and pressure relief plate surround pressure release box of the opening towards pressure relief opening, and the holding connects
Socket part, which sets up separately, sets on bending part, and on the body, pressure release coupling part is fixed on supporting element for the pressure release coupling part setting,
Keep coupling part connection on the cabinet.
The holding coupling part is hingedly on the cabinet.
The shutter overhangs at pressure relief opening or the shutter includes the shutter being fixed at pressure relief opening always
It keeps interconnecting piece and releases fixed shutter pressure release interconnecting piece after being impacted by arcing energy.
The shutter or directing plate are fixed in pressure relief opening opening's edge close to the position for keeping coupling part.
The technical solution of pressure release structure for switch cabinet of the invention are as follows: pressure release structure for switch cabinet includes for being arranged in pressure relief opening
There is pressure release coupling part and the holding for connecting pressure relief plate always on the cabinet to connect for the pressure relief plate at place, the pressure relief plate
Part, the pressure release structure for switch cabinet further include for being arranged at pressure relief opening to pressure relief opening close to the side for keeping coupling part
Form the foldable shutter blocked；Or the pressure release structure for switch cabinet further includes for the guidance at pressure relief opening to be arranged in
Plate, directing plate are equipped with for keeping the subregional guide surface of interconnecting piece for separate on arcing energy drag pressure relief plate in cabinet body；
The shutter or directing plate are in pressure relief plate and are used for towards the side of pressure relief opening.
The pressure relief plate includes for the ontology towards pressure relief opening and the bending part connecting with ontology, and the pressure relief is also
Including for fixed supporting element on the cabinet, the pressure release coupling part is fixed on supporting element, the supporting element and pressure release
Plate surrounds opening for the pressure release box towards pressure relief opening, and the holding coupling part is arranged on bending part, the pressure release connection
Part setting is on the body.
The holding coupling part is equipped with for hinged articulated structure on the cabinet.
The pressure release structure for switch cabinet includes the pressure relief opening, and the shutter is for overhanging at pressure relief opening, Huo Zhesuo
Stating shutter includes keeping interconnecting piece and for impacting by arcing energy for being fixed on the shutter at pressure relief opening always
Fixed shutter pressure release interconnecting piece is released afterwards.
The pressure release structure for switch cabinet includes the pressure relief opening, and the shutter or directing plate are fixed on pressure relief opening opening's edge
Close to the position for keeping coupling part.
The invention has the benefit that when being equipped with shutter at the pressure relief opening of switch cabinet body of the invention, at shutter
It is fired in cabinet body towards pressure relief opening side and to pressure relief opening close to keeping the side formation of coupling part to block in pressure relief plate
When arc failure, the intracorporal arcing energy of cabinet rushes at pressure relief opening, and pressure relief opening is close to the side quilt of the holding coupling part of pressure relief plate
Shutter blocks, and makes pressure relief opening far from keeping the side of coupling part to be first subjected to impact, the pressure release coupling part of pressure relief plate exists
It is fixed by being released after arcing energy impact, pressure relief opening is first opened close to the side of pressure release coupling part, in arcing energy
Impact under pressure relief plate open pressure relief opening, while foldable shutter turns down under the impact of arcing energy, makes pressure relief opening quilt
It fully opens.Due to the protective effect of shutter, arcing energy impacts pressure relief plate far from the region for keeping coupling part, energy first
Enough reduce the impact force for keeping coupling part to be subject on pressure relief plate, avoids pressure relief plate that coupling part is kept to be thrust, solve mesh
There is security risk in the pressure relief of preceding switchgear.
When being equipped with directing plate at the pressure relief opening of switch cabinet body of the invention, directing plate is in pressure relief plate towards pressure relief opening one
Side, when arcing failure occurring in cabinet body, the intracorporal arcing energy of cabinet rushes at pressure relief opening, and guide surface can will be gone out on directing plate
The energy of pressure relief opening is guided to far from the region for keeping coupling part, reduces the impact force for keeping coupling part to be subject to, and guarantees to protect
Holding coupling part will not be thrust, and solving the problems, such as the pressure relief of current switchgear, there are security risks.
The pressure release coupling part of switch cabinet body of the invention is less than at a distance from pressure relief opening keeps coupling part and pressure release
When the distance of mouth is so that pressure relief opening is relative to pressure relief plate arranged off-centre, arcing energy acts on the force position distance on pressure relief plate
The distance for keeping coupling part farther out, will not also ensure that holding interconnecting piece to keeping coupling part to generate biggish impact
It point will not be thrust, solving the problems, such as the pressure relief of current switchgear, there are security risks.
Further, pressure release coupling part is arranged in towards on the ontology of pressure relief opening, and coupling part is kept to be arranged curved
On folding part, arcing energy goes out after pressure relief opening the pressure release coupling part in impact body first, in other conditions such as fuel factors
It under effect, is further ensured that pressure release coupling part is thrust first, keeps coupling part to protect.
Further, the shutter or directing plate are fixed in pressure relief opening opening's edge close to the position for keeping coupling part
It sets, shutter or directing plate are fixed in pressure relief opening opening's edge, facilitate processing, and be positioned close to keep the position of coupling part
It can then guarantee that arcing energy is guided to far from holding coupling part when arcing energy impacts shutter or directing plate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the pressure relief of the specific embodiment 1 of switchgear of the invention；
Fig. 2 is the status diagram after the pressure relief opening of the specific embodiment 1 of switchgear of the invention is opened；
Fig. 3 is the partial structural diagram of the specific embodiment 1 of switchgear of the invention；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is to remove the top view after pressure relief plate at the top of the cable vault Tu4Zhong；
Fig. 6 is the top view of pressure relief plate in Fig. 1；
Fig. 7 is the main view of Fig. 6；
Fig. 8 is the structural schematic diagram of the pressure relief of the specific embodiment 2 of switchgear of the invention；
Fig. 9 is the top view of the cabinet body top plate of the specific embodiment 5 of switchgear of the invention；
Figure 10 be Fig. 9 in top plate along the sectional view of A-A；
Figure 11 is the status diagram in Fig. 9 after shutter fold；
Figure 12 is the top view of the cabinet body top plate of the specific embodiment 6 of switchgear of the invention.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment 1 of the cabinet that opens the light of the invention, as shown in Figures 1 to 7, switchgear includes cabinet body, before cabinet body includes
Breaker chamber 13, the bus-bar room 14, cable vault 15 arranged afterwards, wherein breaker chamber 13, bus-bar room 14, the top of cable vault 15 are equal
Equipped with pressure relief.Pressure relief includes cabinet body top plate 1 and the pressure relief opening 11 that is arranged on top plate 1, and pressure relief further includes setting
The pressure relief plate 2 and supporting element 3 at pressure relief opening 11 are set, pressure relief plate 2, which has, keeps coupling part 21 and pressure release coupling part 22.
Pressure relief plate 2 is L-shaped, and pressure relief plate 2 includes the ontology 23 and the bending part 24 that connect with ontology towards pressure relief opening 11, protects
It holds coupling part 21 to be arranged on bending part 24, pressure release coupling part 22 is arranged on the body, and pressure release coupling part 22 is fixed on
On supporting element 3, keep coupling part 21 fixed on the cabinet.As shown in fig. 7, in the present embodiment, on ontology 23 and bending part 24
All have the flange turned down towards pressure relief opening.In the present embodiment, pressure relief opening 11 is square, in order to improve the protection etc. of switchgear
Grade, in the present embodiment, supporting element 3 is made of three pieces of U-shaped boards, and three pieces of U-shaped boards are arranged at pressure relief opening and surround out with pressure relief plate
Towards the pressure release box of cabinet body, the U-shaped board for constituting supporting element 3 is open towards outside pressure release box mouth.In view of the sealing of switchgear is anti-
Grade is protected, supporting element 3 is on the inside of the flange of pressure relief plate 2 when supporting element 3 and pressure relief plate 2 are coupled, with pressure release on pressure relief plate
Coupling part is in the lower section of pressure relief plate by the U-board that nylon screw connects, and pressure relief plate and supporting element are fitted to switch
Cabinet top portion meets the switchgear protection level requirements of IP4X.
Coupling part 21 is kept to be hinged on the top plate 1 of cabinet body by hinge 4.Pressure release coupling part 22 passes through nylon screw
5 are fixed on supporting element, and supporting element 3 is weldingly fixed on the top plate 1 of cabinet body.In the present embodiment, pressure relief plate 2 uses unilateral overlap joint
Form, on pressure relief plate 2 with the setting nylon screw on one side that keeps coupling part to be oppositely arranged.
In the present embodiment, cabinet body further includes the directing plate 12 for the opening's edge that pressure relief opening 11 is arranged in, and directing plate 12 is by cabinet body
It is obliquely installed on inside to outside direction from pressure relief opening opening's edge to pressure relief opening center, has on directing plate 12 and be used for towards pressure relief opening
By the guide surface 121 in cabinet body far from holding coupling part on arcing energy drag pressure relief plate, guide surface 121 is by interior of the cabinet
It is tilted on to outside direction from pressure relief opening opening's edge to pressure relief opening center.Directing plate 12 protrudes into the internal cavity of pressure release box, pressure release box
Internal cavity constitute pressure relief on for accommodates protrude cabinet body directing plate accommodating cavity.Pressure release box increases bus-bar room
The insulation distance of main bus-bar gives cabinet body and provides bigger design margin, keeps the overall performance of switchgear more superior.
When arcing occurs for inside switch cabinet of the invention, arcing energy is released from pressure relief opening, in the guiding function of directing plate
Under, arcing energy is directed to the region far from holding coupling part on pressure relief plate, the nylon screw quilt on pressure release coupling part
The fixation with supporting element is released after thrusting, pressure release coupling part can be let out around the hinge joint rotation kept on coupling part, opening
Mouth is pressed to carry out pressure release, in addition, directing plate deforms under the impact of arcing energy, directing plate is rolled to the radial direction of pressure relief opening
Tiltedly to fully open pressure relief opening, pressure release is utmostly carried out.
Switchgear of the invention can quickly open pressure release passage, by using the pressure relief plate of articulated form, pressure relief plate
Open angle can reach 180 degree, comprehensive opening pressure release passage.Arcing energy is drawn by the way that guide surface is arranged
It leads, makes force localization produced by arcing energy in pressure release coupling part, so that active force very little suffered by hinge, is completely secured
Entire pressure leak process is safe and reliable, while also ensuring that pressure relief plate being capable of quick start after generation arcing in cabinet body.
The specific embodiment 2 of switchgear of the invention, the specific implementation of switchgear and above-mentioned switchgear in the present embodiment
The difference of switchgear described in example 1 is only that: as shown in figure 8, pressure relief includes guide member 6 in the present embodiment, guidance
Component 6 includes the fixed part 61 and directing plate 62 being fixed on cabinet body top plate, and fixed part 61 and hinge 204 are each attached to cabinet
On the top plate 201 of body, guide surface 2121 is arranged on directing plate 62, the specific implementation of the structure of directing plate 62 and above-mentioned switchgear
Example described in directing plate it is identical, do not repeating.
The specific embodiment 3 of switchgear of the invention, the specific implementation of switchgear and above-mentioned switchgear in the present embodiment
The difference of example 2 is only that: guide member is equipped with articulated shaft, and pressure relief plate is directly hinged on the articulated shaft of guide member.
The specific embodiment 4 of switchgear of the invention, the specific implementation of switchgear and above-mentioned switchgear in the present embodiment
The difference of example 1 is only that: the pressure relief plate of the pressure relief in the present embodiment is plate, and the top plate of cabinet body is equipped with groove, pressure relief opening
It is arranged in groove, directing plate is also disposed in groove, and pressure relief plate is covered in groove notch.
The specific embodiment 5 of switchgear of the invention, the specific implementation of switchgear and above-mentioned switchgear in the present embodiment
The difference of example 1 is only that: as shown in Figures 9 to 11, being equipped at pressure relief opening 511 in the present embodiment and is in pressure relief plate towards pressure relief opening
Side is used for pressure relief opening close to the foldable shutter 512 for keeping the side formation of coupling part to block, foldable screening
Baffle 512 can turn down under the impact of arcing energy.Shutter 512 is wholely set with top plate 51, and the overhanging of shutter 512 is being let out
It presses at mouth 511.When arcing occurs for interior of the cabinet, the intracorporal arcing energy of cabinet rushes at pressure relief opening, and pressure relief opening is close to pressure relief plate
Keep the side plate that is blocked of coupling part to block, make arcing energy impact first far from holding coupling part on pressure relief plate one
Side, pressure relief plate pressure release coupling part under the impact of arcing energy, which releases, to be fixed, and the shutter at subsequent pressure relief opening is in arcing energy
It is turned down under the impact of amount, pressure relief opening is fully opened.Shutter can be such that arcing energy is impacted first far from holding coupling part
Region, avoid connection holding part be thrust.In other embodiments, pressure relief plate can be plate, at this time shutter and pressure release
Plate is disposed adjacent, and in pressure release, shutter is almost dug simultaneously with pressure relief plate, can be close on pressure relief plate under this design
The nylon screw for keeping the region setting intensity of coupling part slightly larger, to reduce the impact that the holding coupling part of pressure relief plate is subject to
Power.
The specific embodiment 6 of switchgear of the invention, the specific implementation of switchgear and above-mentioned switchgear in the present embodiment
The difference of example 5 is only that: as shown in figure 12, shutter 6012 includes that the shutter being fixed at pressure relief opening 6011 always keeps connecting
Socket part 6014 and fixed shutter pressure release interconnecting piece 6015 is released after being impacted by arcing energy, block pressure release interconnecting piece
Dowel 6013 is equipped between 6015 and cabinet body top plate 601, under arcing energy impact, dowel can be thrust.Other are implemented
In example, the part between two neighboring dowel can not be through-hole, can be the weak connection of the other structures such as groove composition
Part.
When arcing occurs for interior of the cabinet, the intracorporal arcing energy of cabinet rushes at pressure relief opening, guarantor of the pressure relief opening close to pressure relief plate
The side plate that is blocked for holding coupling part blocks, and impacts arcing energy first on pressure relief plate far from keeping the one of coupling part
Side, pressure relief plate pressure release coupling part under the impact of arcing energy, which releases, to be fixed, and the shutter at subsequent pressure relief opening is in arcing energy
The dowel of shutter pressure release interconnecting piece is thrust under the impact of amount, and shutter is to turning down outside switch cabinet body, pressure relief opening quilt
It fully opens.Shutter can be such that arcing energy is impacted first far from the region for keeping coupling part, avoid connection holding part
It is thrust.
The specific embodiment 7 of switchgear of the invention, the specific implementation of switchgear and above-mentioned switchgear in the present embodiment
The difference of example 1 is only that: in the present embodiment, pressure release coupling part is less than at a distance from pressure relief opening keeps coupling part and pressure relief opening
Distance so that pressure relief opening is relative to pressure relief plate arranged off-centre, pressure relief opening distance keeps the distance of coupling part farther out, arcing energy
The impact force that hinge portion is acted on when stroke pressure relief plate is small, guarantees that hinge is not thrust.
The specific embodiment 1 of pressure release structure for switch cabinet of the invention, pressure release structure for switch cabinet in the present embodiment with it is above-mentioned
The structure of any one pressure relief as described in the examples of the specific embodiment 1-7 of switchgear is identical, and it will not go into details.
The specific embodiment 2 of pressure release structure for switch cabinet of the invention, pressure release structure for switch cabinet in the present embodiment with it is above-mentioned
The difference of structure described in pressure release structure for switch cabinet specific embodiment 1 is only that: the pressure relief in the present embodiment does not include
Top plate and the pressure relief opening being arranged on top plate.
In the other embodiments of switchgear and its pressure relief of the invention, above-mentioned pressure release coupling part can also be by low
Other low-intensity connectors such as metallic screw of intensity are fixed on supporting element, and above-mentioned coupling part can also be not provided with low-intensity
Fixation hole can be set in connector, pressure release coupling part is directly anchored on supporting element by fixing bolt, and in fixation hole
Circumference range in breaking groove is set, facilitate pressure release coupling part to be broken at breaking groove when being impacted, it is original after fracture
Fixation hole and fixing bolt on coupling part are maintained on supporting element, and rest part is around the hinge joint for keeping coupling part
Rotation.
Above-mentioned supporting element can not be set, and pressure relief plate is integrally in have box-like, the guarantor of pressure relief plate that is open towards cabinet body at this time
It holds coupling part and pressure release coupling part is arranged at box mouth；The holding coupling part and pressure release coupling part of above-mentioned pressure relief plate
It can be connect with cabinet body, be provided with boss at the opening's edge of the pressure relief opening of the top surface of cabinet body at this time, that is, supporting element and cabinet
Body is wholely set；Above-mentioned pressure relief also can be set in the side or bottom surface of cabinet body, and specific location can be according to cabinet body
Depending on actual use needs；Above-mentioned guide surface can also be that guidance cambered surface, certain guide surface can also be guidance step surface, guidance
Step surface can have at least one step；When above-mentioned pressure relief plate is L-type plate, keep coupling part and pressure release coupling part that can set
It sets on two adjacent faces of cabinet body；Above-mentioned supporting element can also be other components such as supporting block or I-steel.
Above-mentioned shutter can not also be an integral structure with the top plate of cabinet body, shutter can be fixed on top plate,
Top plate by bolt or is welded and fixed together with shutter, using structure similar in switchgear specific embodiment 2.
In other embodiments, the holding coupling part of above-mentioned pressure relief plate can be fixed on by stainless steel bolt on top plate or
The top plate of person's pressure relief plate and cabinet body is wholely set, and keeps coupling part and top plate integral structure, the holding interconnecting piece of pressure relief plate
Dividing can be weldingly fixed on top plate.
Rear side or bottom in cabinet body also can be set in above-mentioned pressure relief, can also set in the case where meeting the requirements
It sets in the left and right sides of switchgear.
Above-mentioned pressure release box can bending part surrounds on the body by pressure relief plate ontology and setting, at this time the four of pressure relief plate ontology
All have bending part week, bending part and ontology surround pressure release box of the opening towards pressure relief opening, at this time the holding interconnecting piece of pressure relief plate
Divide and pressure release coupling part is arranged on bending part；Above-mentioned supporting element can be tubular, at this time pressure release box by pressure relief plate sheet
Body and supporting element surround, and the bending part of pressure relief plate can be set in the side of supporting element, and pressure relief plate can also be not provided with curved at this time
Folding part, pressure relief plate are slab construction, and the holding coupling part and pressure release coupling part of pressure relief plate are both connected on supporting element.
Claims (10)
1. switchgear, including cabinet body, cabinet body is equipped with pressure relief opening, and pressure relief plate is provided at pressure relief opening, and the pressure relief plate, which has, to be let out
Pressure coupling part and for making pressure relief plate connect holding coupling part on the cabinet always, it is characterised in that: the pressure relief opening
Place be equipped in pressure relief plate towards pressure relief opening side be used for pressure relief opening close to keep coupling part side formed block can
The shutter of fold；Or it is equipped at the pressure relief opening and is in directing plate of the pressure relief plate towards pressure relief opening side, the directing plate
It is equipped with for keeping the subregional guide surface of interconnecting piece for separate on arcing energy drag pressure relief plate in cabinet body；Or pressure release connects
Socket part point is less than at a distance from pressure relief opening keeps coupling part at a distance from pressure relief opening so that pressure relief opening is relative to pressure relief plate bias
Arrangement.
2. switchgear according to claim 1, it is characterised in that: the pressure relief plate include towards pressure relief opening ontology and with
The bending part of ontology connection, the pressure relief further include fixed supporting element on the cabinet, and the supporting element is enclosed with pressure relief plate
At opening towards the pressure release box of pressure relief opening, the holding coupling part is arranged on bending part, the pressure release coupling part setting
On the body, pressure release coupling part is fixed on supporting element, keeps coupling part connection on the cabinet.
3. switchgear according to claim 1 or 2, it is characterised in that: the holding coupling part is hingedly on the cabinet.
4. switchgear according to claim 1 or 2, it is characterised in that: the shutter overhangs at pressure relief opening, Huo Zhesuo
Stating shutter includes that the shutter being fixed at pressure relief opening always keeps interconnecting piece and releases after being impacted by arcing energy solid
Fixed shutter pressure release interconnecting piece.
5. switchgear according to claim 1 or 2, it is characterised in that: the shutter or directing plate are fixed on pressure release
Close to the position for keeping coupling part in mouth opening's edge.
6. pressure release structure for switch cabinet, including for the pressure relief plate at pressure relief opening to be arranged in, the pressure relief plate has pressure release interconnecting piece
Point and for making pressure relief plate connect holding coupling part on the cabinet always, it is characterised in that: the pressure release structure for switch cabinet
It further include for being arranged at pressure relief opening to pressure relief opening close to keeping the side of coupling part to form foldable blocking of blocking
Plate；Or the pressure release structure for switch cabinet further includes for the directing plate at pressure relief opening to be arranged in, directing plate is equipped with for inciting somebody to action
Far from the holding subregional guide surface of interconnecting piece on arcing energy drag pressure relief plate in cabinet body；At the shutter or directing plate
It is used in pressure relief plate towards the side of pressure relief opening.
7. pressure release structure for switch cabinet according to claim 6, it is characterised in that: the pressure relief plate includes for towards pressure relief opening
Ontology and the bending part that is connect with ontology, the pressure relief further include for fixed supporting element on the cabinet, it is described to let out
Pressure coupling part is fixed on supporting element, and the supporting element and pressure relief plate surround opening for the pressure release box towards pressure relief opening, institute
It states and coupling part is kept to be arranged on bending part, the pressure release coupling part setting is on the body.
8. pressure release structure for switch cabinet described according to claim 6 or 7, it is characterised in that: the holding coupling part, which is equipped with, to be used
In articulated structure hingedly on the cabinet.
9. pressure release structure for switch cabinet described according to claim 6 or 7, it is characterised in that: the pressure release structure for switch cabinet includes institute
Pressure relief opening is stated, the shutter is used to overhang at pressure relief opening or the shutter includes for being fixed on pressure relief opening always
The shutter at place keeps interconnecting piece and for releasing fixed shutter pressure release interconnecting piece after being impacted by arcing energy.
10. pressure release structure for switch cabinet described according to claim 6 or 7, it is characterised in that: the pressure release structure for switch cabinet includes institute
Pressure relief opening is stated, the shutter or directing plate are fixed on pressure relief opening opening's edge close to the position for keeping coupling part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245759.XA CN107086484B (en) | 2017-04-14 | 2017-04-14 | Switchgear and its pressure relief |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710245759.XA CN107086484B (en) | 2017-04-14 | 2017-04-14 | Switchgear and its pressure relief |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107086484A CN107086484A (en) | 2017-08-22 |
| CN107086484B true CN107086484B (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710245759.XA Active CN107086484B (en) | 2017-04-14 | 2017-04-14 | Switchgear and its pressure relief |
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| CN (1) | CN107086484B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018206577A1 (en) * | 2018-04-27 | 2019-10-31 | Siemens Aktiengesellschaft | switch cabinet |
| CN112154581B (en) * | 2018-05-24 | 2022-04-08 | 三菱电机株式会社 | Gas-insulated switchgear |
| DE102018116397A1 (en) * | 2018-07-06 | 2020-01-09 | R. Stahl Schaltgeräte GmbH | Explosion-proof housing with pressure relief |
| CN109546536B (en) * | 2018-12-19 | 2021-10-22 | 河南平高通用电气有限公司 | Switch cabinet |
| CN110475454B (en) * | 2019-08-28 | 2024-03-29 | 现代重工(中国)电气有限公司 | Novel air tank heat dissipation cover plate |
| CN110880695A (en) * | 2019-11-06 | 2020-03-13 | 安徽泰格电气科技股份有限公司 | Cubical switchboard dehumidification cooling structure |
| CN111463687A (en) * | 2020-05-21 | 2020-07-28 | 国网福建省电力有限公司南安市供电公司 | A pressure relief device for switch cabinet and switch cabinet |
| CN215872157U (en) * | 2021-08-06 | 2022-02-18 | 阳光电源股份有限公司 | Machine cabinet |
| CN115693484B (en) * | 2022-10-31 | 2023-05-09 | 湖南开关有限责任公司 | Intelligent control method of switch cabinet and artificial intelligent platform |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3927835A1 (en) * | 1989-08-23 | 1991-02-28 | Ritter Starkstromtech | ENCLOSED MEDIUM VOLTAGE SWITCHGEAR |
| DE3942274A1 (en) * | 1989-12-21 | 1991-07-04 | Kloeckner Moeller Gmbh | SWITCHING OR OUTLET BOX, IN PARTICULAR FOR USE ON RAIL DISTRIBUTORS OF LOW VOLTAGE SWITCHGEAR |
| CN101931179B (en) * | 2010-08-12 | 2012-07-04 | 河南省电力公司驻马店供电公司 | Directional explosion-proof pressure-relieving device for middle-placed cabinet |
| CN203288997U (en) * | 2013-06-14 | 2013-11-13 | 上海航星通用电器有限公司 | Rapid pressure releasing apparatus for arcing in high tension switchgear |
| CN103500937A (en) * | 2013-09-12 | 2014-01-08 | 安徽驰纬电气有限公司 | Hinge type pressure relief cover of high-voltage switch |
-
2017
- 2017-04-14 CN CN201710245759.XA patent/CN107086484B/en active Active
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| CN107086484A (en) | 2017-08-22 |
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