CN112467529A - Switch cabinet and pressure relief device thereof - Google Patents
Switch cabinet and pressure relief device thereof Download PDFInfo
- Publication number
- CN112467529A CN112467529A CN201910844507.8A CN201910844507A CN112467529A CN 112467529 A CN112467529 A CN 112467529A CN 201910844507 A CN201910844507 A CN 201910844507A CN 112467529 A CN112467529 A CN 112467529A
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- CN
- China
- Prior art keywords
- pressure relief
- side walls
- switch cabinet
- relief device
- pressure release
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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
- 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to a switch cabinet and a pressure relief device thereof, wherein the pressure relief device comprises a bottom frame and a pressure relief cover, the bottom frame comprises a rectangular top wall, the peripheral edges of the top wall are respectively and integrally bent downwards to extend side walls, any two adjacent side walls in the peripheral direction of the bottom frame are spliced and fixedly connected together to form a ring frame structure, and the bottom end surfaces of the four side walls are arranged in a coplanar manner and are used for being flatly and fixedly pressed on the switch cabinet; the roof is equipped with the pressure release mouth, the pressure release lid corresponds the cover the pressure release mouth is equipped with side pressure release hole on at least one lateral wall and/or be equipped with top pressure release hole on the pressure release lid. The side wall and roof an organic whole around the bottom frame are arranged, and the convenience links firmly adjacent side wall concatenation through the mode of fastening connection and forms the ring frame, and the assembly is comparatively convenient. Moreover, the bottom end faces of the peripheral side walls are arranged in a parallel and level mode conveniently, so that the bottom frame can be flatly pressed on the switch cabinet, and the problem of repair due to insufficient protection grade is avoided.
Description
Technical Field
The invention belongs to the technical field of pressure relief devices of switch cabinets, and particularly relates to a switch cabinet and a pressure relief device thereof.
Background
Switch cabinet is at the operation in-process, if the condition of primary circuit short circuit trouble appears, inside can produce high temperature high-pressure gas in the twinkling of an eye in the cabinet, if these high-pressure gas not discharge the cabinet body in time, cause the explosion accident easily, can damage adjacent switch cabinet, still can injure personal safety when serious. Therefore, the corresponding pressure relief device is often correspondingly arranged at the top of the switch cabinet. Among the prior art, the pressure relief device structure of cubical switchboard is many, if grant the chinese utility model patent that the bulletin number is CN207475036U in disclose put cabinet top pressure relief device in, including the pressure release cover, pressure release cover circumference lateral wall is equipped with the pressure release hole, the pressure release cover top sets up great pressure release mouth, pressure release cover top still is equipped with the pressure release apron of closing cap pressure release mouth, and is concrete, pressure release apron one side is passed through the hinge and is connected with the pressure release cover, and the opposite side passes through the fastener and the pressure release cover of nylon material and is connected, when putting the inside high temperature high pressure gas that appears of cabinet, during gaseous entering pressure release cover, the subtotal is discharged through the pressure release hole, and the majority is lifted the pressure release apron and is discharged from the pressure release mouth at top, realizes.
At present, a bottom frame (be foretell pressure release cover) for articulated assembly pressure release lid is usually formed by four curb plates concatenations, to adjacent curb plate, has to adopt riveting mode fixed connection, also has to adopt welding mode fixed connection, but no matter which kind of connected mode, all need with the curb plate butt joint of components of a whole that can function independently well fixed again, the operation is comparatively troublesome, moreover, also difficult assurance roughness, the problem that needs to be reprocessed because unsatisfied protection level requirement appears easily.
Disclosure of Invention
The invention aims to provide a pressure relief device for a switch cabinet, which aims to solve the technical problem that in the prior art, the bottom frame of the pressure relief device is formed by splicing and fixedly connecting four side plates which are separately arranged, so that the operation is complicated; meanwhile, the invention also provides a switch cabinet using the pressure relief device.
In order to achieve the purpose, the technical scheme of the pressure relief device for the switch cabinet provided by the invention is as follows: a pressure relief device for a switchgear comprising: the bottom frame is correspondingly and fixedly arranged at the pressure relief channel of the switch cabinet; the pressure relief cover is arranged at the top of the bottom frame and used for jacking the gas exhausted by the pressure relief channel to realize pressure relief; the bottom frame comprises a rectangular top wall, the peripheral edges of the top wall are respectively and integrally bent downwards to extend side walls, any two adjacent side walls in the peripheral direction of the bottom frame are spliced and fixedly connected together to form a ring frame structure, and the bottom end surfaces of the four side walls are arranged in a coplanar manner and are used for being flatly and fixedly pressed on the switch cabinet; the roof is equipped with the pressure release mouth, the pressure release lid corresponds the cover the pressure release mouth is equipped with side pressure release hole on at least one lateral wall and/or be equipped with top pressure release hole on the pressure release lid.
The beneficial effects are that: in the pressure relief device provided by the invention, the peripheral side walls of the bottom frame are integrally folded and formed downwards from the peripheral edge of the top wall, so that the adjacent side walls are conveniently spliced and fixedly connected in a fastening connection mode to form the ring frame, and the assembly is more convenient. Moreover, the bottom end faces of the peripheral side walls are arranged in a parallel and level mode conveniently, so that the bottom frame can be flatly pressed on the switch cabinet, the problem of repair due to insufficient protection grade is avoided, the overall assembly quality can be effectively guaranteed, and the assembly efficiency is improved.
Furthermore, the bottom ends of the four side walls are respectively and integrally folded outwards to extend to form outer supporting turned edges, and the lower side surfaces of the outer supporting turned edges form the bottom end surfaces of the corresponding side walls. The bottom frame is smoothly pressed on the switch cabinet by utilizing the outer supporting turned edge which is integrally turned outwards and extends from the bottom ends of the peripheral side walls.
Furthermore, the four side walls are divided into two side wall pairs in a pairwise opposite manner, and two outer supporting turned edges of at least one side wall pair are provided with fastening mounting holes for mounting fasteners so as to fixedly mount the bottom frame on the switch cabinet. The fastening mounting holes are formed in the outer supporting turned edges, so that the bottom frame can be conveniently mounted on the switch cabinet.
Furthermore, the four side walls are divided into two side wall pairs in pairwise opposition, two side walls of at least one side wall pair extend outwards from top to bottom in an inclined manner, and the bottoms of the four side walls are respectively provided with a vertical section to be vertically arranged with the corresponding outer support turning edge. Vertical sections arranged at the bottoms of the four side walls are perpendicular to the outer support turning edges, so that the outer support turning edges are parallel and level to support and press-fit the switch cabinet.
Furthermore, the four side walls are divided into two side wall pairs in a pairwise opposite manner, and two side walls of at least one side wall pair extend outwards from top to bottom in an inclined manner.
Furthermore, any two adjacent side walls on the circumferential direction of the bottom frame are spliced and fixedly connected together in a welding connection mode. The adjacent side walls are spliced through welding connection, so that assembly is facilitated.
Further, one side of the pressure relief cover is hinged and assembled with the top wall through a hinge, and the other side of the pressure relief cover is fixedly assembled with the top wall through a nylon fastener.
Furthermore, the top wall is fixedly provided with a hinge seat, one side of the pressure relief cover corresponding to the pressure relief cover is provided with a connecting folded edge which is folded upwards, and the hinge is fixed on the connecting folded edge and is hinged with the corresponding hinge seat.
Further, the pressure relief cover is provided with the top pressure relief hole, and the inner side of the pressure relief cover is fixedly provided with a screen plate covering the top pressure relief hole.
The technical scheme of the switch cabinet using the pressure relief device provided by the invention is as follows: a switch cabinet comprises a cabinet body, wherein a pressure relief channel is arranged in the cabinet body, a pressure relief device corresponding to the pressure relief channel is arranged at the top of the cabinet body, and the pressure relief device comprises a bottom frame and is correspondingly and fixedly arranged at the pressure relief channel of the switch cabinet; the pressure relief cover is arranged at the top of the bottom frame and used for jacking the gas exhausted by the pressure relief channel to realize pressure relief; the bottom frame comprises a rectangular top wall, the peripheral edges of the top wall are respectively and integrally bent downwards to extend side walls, any two adjacent side walls in the peripheral direction of the bottom frame are spliced and fixedly connected together to form a ring frame structure, and the bottom end surfaces of the four side walls are arranged in a coplanar manner and are used for being flatly and fixedly pressed on the switch cabinet; the roof is equipped with the pressure release mouth, the pressure release lid corresponds the cover the pressure release mouth is equipped with side pressure release hole on at least one lateral wall and/or be equipped with top pressure release hole on the pressure release lid.
The beneficial effects are that: in the switch cabinet provided by the invention, in the pressure relief device arranged corresponding to the pressure relief channel lock of the switch cabinet, the peripheral side walls of the bottom frame are integrally folded and formed downwards from the peripheral edge of the top wall, so that the adjacent side walls are conveniently spliced and fixedly connected in a fastening connection mode to form a ring frame, and the assembly is more convenient. Moreover, the bottom end faces of the peripheral side walls are arranged in a parallel and level mode, so that the bottom frame can be flatly pressed on the switch cabinet, the problem of repair due to insufficient protection grade is avoided, the overall assembly quality can be effectively guaranteed, the assembly efficiency is improved, the repair frequency is reduced, and the normal work of the switch cabinet can be guaranteed.
Furthermore, the bottom ends of the four side walls are respectively and integrally folded outwards to extend to form outer supporting turned edges, and the lower side surfaces of the outer supporting turned edges form the bottom end surfaces of the corresponding side walls. The bottom frame is smoothly pressed on the switch cabinet by utilizing the outer supporting turned edge which is integrally turned outwards and extends from the bottom ends of the peripheral side walls.
Furthermore, the four side walls are divided into two side wall pairs in a pairwise opposite manner, and two outer supporting turned edges of at least one side wall pair are provided with fastening mounting holes for mounting fasteners so as to fixedly mount the bottom frame on the switch cabinet. The fastening mounting holes are formed in the outer supporting turned edges, so that the bottom frame can be conveniently mounted on the switch cabinet.
Furthermore, the four side walls are divided into two side wall pairs in pairwise opposition, two side walls of at least one side wall pair extend outwards from top to bottom in an inclined manner, and the bottoms of the four side walls are respectively provided with a vertical section to be vertically arranged with the corresponding outer support turning edge. Vertical sections arranged at the bottoms of the four side walls are perpendicular to the outer support turning edges, so that the outer support turning edges are parallel and level to support and press-fit the switch cabinet.
Furthermore, the four side walls are divided into two side wall pairs in a pairwise opposite manner, and two side walls of at least one side wall pair extend outwards from top to bottom in an inclined manner.
Furthermore, any two adjacent side walls on the circumferential direction of the bottom frame are spliced and fixedly connected together in a welding connection mode. The adjacent side walls are spliced through welding connection, so that assembly is facilitated.
Further, one side of the pressure relief cover is hinged and assembled with the top wall through a hinge, and the other side of the pressure relief cover is fixedly assembled with the top wall through a nylon fastener.
Furthermore, the top wall is fixedly provided with a hinge seat, one side of the pressure relief cover corresponding to the pressure relief cover is provided with a connecting folded edge which is folded upwards, and the hinge is fixed on the connecting folded edge and is hinged with the corresponding hinge seat.
Further, the pressure relief cover is provided with the top pressure relief hole, and the inner side of the pressure relief cover is fixedly provided with a screen plate covering the top pressure relief hole.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a pressure relief device for a switch cabinet according to the present invention;
FIG. 2 is a front view of the pressure relief device shown in FIG. 1;
FIG. 3 is a right side view of the pressure relief device shown in FIG. 2;
FIG. 4 is a schematic diagram of an embodiment of a switch cabinet using the pressure relief device shown in FIG. 1 according to the present invention;
description of reference numerals:
1-bottom frame, 2-pressure relief cover, 3-nylon fastener, 4-side pressure relief hole, 5-hinge, 6-mesh plate, 7-hinge seat, 8-rivet nut, 10-top wall, 11-long side wall, 12-short side wall, 13-long side outer support flange, 14-short side outer support flange, 20-connecting flange, 21-top pressure relief hole, 100-cabinet, 101-handcart room, 102-instrument room, 103-handcart room pressure relief channel, 104-handcart room pressure relief device, 105-bus room, 106-cable room.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 3, the pressure relief device in this embodiment mainly includes a bottom frame 1 and a pressure relief cover 2, where one side of the pressure relief cover 2 is hinged to the bottom frame 1 through a hinge 5, and the other side is fixed to the bottom frame 1 through a nylon fastener 3. When the pressure relief device is installed on the cabinet body of the switch cabinet, the bottom frame is correspondingly arranged at the corresponding pressure relief channel of the switch cabinet, high-pressure gas rushing out from the cabinet body impacts the pressure relief cover, the nylon fastener is damaged, the pressure relief cover is jacked open, the cabinet is rapidly discharged, and safe pressure relief is realized.
Foretell bottom frame includes the roof 10 of rectangle, roof 10 all around the border respectively integrative downward buckling extend have the lateral wall, two liang of relative dividable in two lateral walls of four lateral walls are right, in this embodiment, because the roof of rectangle has two long limits and two minor faces, four lateral walls then correspond and include two long limit lateral walls 11 and two minor face lateral walls 12, arbitrary adjacent both sides wall all splices on bottom frame week and links firmly together in order to form the ring frame, specifically, link firmly together adjacent both sides wall concatenation through welded connection's mode, in order to guarantee joint strength.
In order to make the bottom frame smoothly press-fit on the switch cabinet, the bottom ends of the four side walls are respectively and integrally folded outwards to extend to form outer supporting turning edges, specifically, two of the four outer supporting turning edges are long-edge outer supporting turning edges 13 corresponding to the long-edge side walls 11, the other two outer supporting turning edges 14 corresponding to the short-edge side walls 12, the lower side surfaces of the four outer supporting turning edges form bottom end surfaces of the corresponding side walls, and the lower side surfaces of the four outer supporting turning edges are arranged in parallel and level, so that the pressure relief device can be flatly and fixedly press-fit on the switch cabinet.
In addition, in order to facilitate the fixed installation of the pressure relief device on the switch cabinet, a plurality of fastening installation holes are sequentially arranged on the two long edge outer support turned edges 13 along the length extension direction of the turned edges at intervals for installing fasteners, and then the bottom frame is fixedly installed on the switch cabinet. In other embodiments, fastening mounting holes can be arranged on the short side outer supporting turned edge for threading corresponding fasteners.
It should be noted that, in the present embodiment, two long side walls 11 of the four side walls are vertical side walls, and two short side walls 12 are inclined side walls extending from top to bottom and inclined outwards, and in order to avoid the influence of the inclined inclination on the short side support turned edge, the bottom of the inclined side wall has a vertical section to be arranged perpendicular to the corresponding outer support turned edge.
Moreover, since the short side walls 12 extend obliquely, the corresponding sides of the long side walls 11 also extend obliquely so as to be welded in alignment with the short side walls to form the corresponding ring frame structure.
And, for improving the pressure release ability, improve the pressure release effect, be equipped with side pressure release hole 4 along length direction extension on two long limit lateral walls 11, side pressure release hole 4 of here is vertical slot hole structure to realize the pressure release. Certainly, can be in the inboard welded fastening corresponding dustproof otter board of long limit lateral wall, with guaranteeing to ventilate normally under the pressure release's the condition, realize effectively dustproof. In other embodiments, a lateral pressure relief hole may be provided on the short side wall, which may be provided according to actual pressure relief needs.
In this embodiment, one side of the pressure relief cover 2 is hinged to the top wall 10 of the bottom frame 1 through a hinge, and the other side of the pressure relief cover is fixed to the top wall 10 of the bottom frame 1 through a nylon fastener 3, specifically, a hinge base 7 is arranged at the top of the top wall 10, a hinge 5 is fixed to a connecting folding edge 20 arranged at one corresponding side of the pressure relief cover 2, the hinge 5 is hinged to the hinge base 7, and here, the connecting folding edge 20 is folded upwards to facilitate fixing the hinge base 7 to the top surface of the top wall 10. In addition, for conveniently installing the nylon fastener 3, the press riveting nut 8 is fixedly arranged on the lower side surface of the top wall 10, the nylon fastener 3 is a nylon bolt in threaded connection with the press riveting nut 8, and the fixed assembly of the corresponding side of the pressure relief cover 2 and the bottom framework is conveniently realized. In other embodiments, the nylon fastener may also be a nylon rivet, in which case the clinch nut may be omitted.
The pressure relief device that this embodiment provided can be applied to in the indoor switch cabinet, and at this moment, need not consider waterproof problem too much, can set up top pressure release hole 21 on the pressure release lid 2 at the top, and top pressure release hole 21 is the slot hole structure, and it is that rectangular array arranges a plurality ofly at pressure release lid 2. In addition, in view of the dust-proof problem, a mesh plate 6 is welded and fixed on the lower side of the pressure relief cover 2, and the mesh plate 6 can play the roles of dust prevention and pressure relief.
The diapire frame among the pressure relief device that this embodiment provided is structure as an organic whole, and the lateral wall is followed the integrative downward folding shaping of border department all around of roof to fastening connection modes such as available welding or riveting are with adjacent lateral wall concatenation link firmly. Because all around the lateral wall all from the roof on integrative the folding shaping, the lateral wall links together through the roof all around, conveniently aligns the concatenation with the lateral wall all around together, and then links firmly and form the ring frame. The bottom end faces of the peripheral side walls are arranged in a parallel and level mode, so that the bottom frame can be flatly pressed on the switch cabinet, and the problem of repair due to insufficient protection grade is avoided.
When the pressure relief device is correspondingly installed on the switch cabinet, when high-pressure gas enters the pressure relief device through the pressure relief channel on the cabinet body, a small part of high-pressure gas is discharged through the side pressure relief holes 4 and the top pressure relief holes 21, and a large part of high-pressure gas pushes the pressure relief cover 2 to be discharged out of the cabinet body.
In this embodiment, four lateral wall bottom respectively an organic whole set up the outer support turn-ups that turns over outwards respectively and follow, be convenient for support on the cubical switchboard, also be convenient for through outer support turn-ups with bottom frame fixed mounting on the cubical switchboard. In other embodiments, the outer supporting turned edge can be omitted, the bottom ends of the four side walls are directly pressed on the switch cabinet, the bottom frame is fixed on the switch cabinet through other fixing connection modes, if a pressing plate is specially configured, the pressing plate is pressed on the bottom frame, and fastening bolt through holes are formed in two ends of the pressing plate so as to facilitate the fastening bolts to penetrate through the fastening bolt holes, and then the bottom frame is fixed on the switch cabinet.
In this embodiment, two short-side walls of the four side walls are inclined side walls, and in other embodiments, the four side walls may be vertical side walls or the four side walls may be inclined side walls.
In this embodiment, any two adjacent side walls are spliced and fixedly connected together in a welding connection manner. In other embodiments, the adjacent side walls can be spliced and fixedly connected together by riveting connection.
The invention further provides an embodiment of a switch cabinet, the structure of the switch cabinet in the embodiment is shown in fig. 4, the switch cabinet in the embodiment includes a cabinet body 100, the cabinet body 100 correspondingly includes a handcart room 101, an instrument room 102, a bus room 105 and a cable room 106, and these structures are the same as the structures of the existing switch cabinet, and are not described again here.
The internal pressure relief channel that corresponds handcart room 101, cable chamber 106, bus-bar room 105 and instrument room 102 of cabinet sets up respectively to, corresponding each pressure relief channel sets up corresponding pressure relief device respectively, and the pressure relief channel and the pressure relief device's of the internal cabinet structure is the same basically, and in this embodiment, the structure of the pressure relief device that corresponds cable chamber, bus-bar room and instrument room is the same basically with handcart room pressure relief device's structure, only size and mounting means are different. The structure of the pressure relief device is described by taking a handcart room as an example, the handcart room pressure relief device 104 is arranged corresponding to the handcart room pressure relief channel 103, and the handcart room pressure relief device 104 adopts the pressure relief device shown in fig. 1 and also comprises an integrated bottom frame and a corresponding pressure relief cover, which are not described again.
Claims (10)
1. A pressure relief device for a switchgear comprising:
the bottom frame is correspondingly and fixedly arranged at the pressure relief channel of the switch cabinet;
the pressure relief cover is arranged at the top of the bottom frame and used for jacking the gas exhausted by the pressure relief channel to realize pressure relief;
the method is characterized in that:
the bottom frame comprises a rectangular top wall, the peripheral edges of the top wall are respectively and integrally bent downwards to extend side walls, any two adjacent side walls in the peripheral direction of the bottom frame are spliced and fixedly connected together to form a ring frame structure, and the bottom end surfaces of the four side walls are arranged in a coplanar manner and are used for being flatly and fixedly pressed on the switch cabinet;
the roof is equipped with the pressure release mouth, the pressure release lid corresponds the cover the pressure release mouth is equipped with side pressure release hole on at least one lateral wall and/or be equipped with top pressure release hole on the pressure release lid.
2. The pressure relief device for a switch cabinet according to claim 1, characterized in that: the bottom ends of the four side walls are respectively and integrally folded outwards to extend to form outer supporting turning edges, and the lower side surfaces of the outer supporting turning edges form the bottom end surfaces of the corresponding side walls.
3. The pressure relief device for a switch cabinet according to claim 2, characterized in that: the four side walls are divided into two side wall pairs in a pairwise opposite mode, and two outer supporting turned edges of at least one side wall pair are provided with fastening mounting holes for mounting fasteners to fixedly mount the bottom frame on the switch cabinet.
4. The pressure relief device for a switch cabinet according to claim 2, characterized in that: the four side walls are divided into two side wall pairs in pairwise opposite, two side walls of at least one side wall pair extend outwards in an inclined mode from top to bottom, and the bottoms of the four side walls are respectively provided with vertical sections to be vertically arranged with corresponding outer supporting turning edges.
5. The pressure relief device for a switch cabinet according to claim 1, 2 or 3, wherein: the four side walls are pairwise opposite and divided into two side wall pairs, and two side walls of at least one side wall pair extend outwards from top to bottom in an inclined mode.
6. The pressure relief device for a switch cabinet according to any one of claims 1 to 4, characterized in that: any two adjacent side walls on the circumferential direction of the bottom frame are spliced and fixedly connected together in a welding connection mode.
7. The pressure relief device for a switch cabinet according to any one of claims 1 to 4, characterized in that: one side of the pressure relief cover is hinged with the top wall through a hinge, and the other side of the pressure relief cover is fixedly assembled with the top wall through a nylon fastener.
8. The pressure relief device for a switch cabinet according to claim 7, wherein: the top wall is fixedly provided with a hinge seat, one side of the pressure relief cover corresponding to the pressure relief cover is provided with a connecting folded edge which is folded upwards, and the hinge is fixed on the connecting folded edge and is hinged with the corresponding hinge seat.
9. The pressure relief device for a switch cabinet according to claim 7, wherein: the pressure relief cover is provided with the top pressure relief hole, and the inner side of the pressure relief cover is fixedly provided with a screen plate covering the top pressure relief hole.
10. The utility model provides a switch cabinet, includes the cabinet body, the internal pressure release passageway that is provided with of cabinet, and cabinet body top is equipped with the pressure relief device who corresponds with pressure release passageway, its characterized in that: the pressure relief device is the pressure relief device for the switch cabinet according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910844507.8A CN112467529A (en) | 2019-09-06 | 2019-09-06 | Switch cabinet and pressure relief device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910844507.8A CN112467529A (en) | 2019-09-06 | 2019-09-06 | Switch cabinet and pressure relief device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112467529A true CN112467529A (en) | 2021-03-09 |
Family
ID=74807290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910844507.8A Pending CN112467529A (en) | 2019-09-06 | 2019-09-06 | Switch cabinet and pressure relief device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112467529A (en) |
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2019
- 2019-09-06 CN CN201910844507.8A patent/CN112467529A/en active Pending
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