CN107769039B - Ventilation and pressure relief device, switch cabinet body and switch cabinet - Google Patents
Ventilation and pressure relief device, switch cabinet body and switch cabinet Download PDFInfo
- Publication number
- CN107769039B CN107769039B CN201711108842.9A CN201711108842A CN107769039B CN 107769039 B CN107769039 B CN 107769039B CN 201711108842 A CN201711108842 A CN 201711108842A CN 107769039 B CN107769039 B CN 107769039B
- Authority
- CN
- China
- Prior art keywords
- cover
- pressure relief
- fan
- pressure release
- 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.)
- Active
Links
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
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- 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
-
- 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
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention relates to a ventilation and pressure relief device, a switch cabinet body and a switch cabinet. The ventilation and pressure relief device comprises a pressure relief cover, a pressure relief cover vent is arranged on the pressure relief cover, a fan is suspended and assembled inside the pressure relief cover, a baffle plate used for being fixed at the position of the vent of the switch cabinet is arranged at the bottom of the pressure relief cover, and a plurality of baffle plate vent holes used for communicating the switch cabinet with the pressure relief cover are formed in the baffle plate. The fan hangs the assembly inside the pressure release cover, is equipped with pressure release cover vent on the pressure release cover, has guaranteed the inside ventilation heat dissipation of cubical switchboard, has reduced the volume of pressure release cover. Meanwhile, the baffle with the baffle vent holes is arranged at the bottom of the pressure release cover, so that the baffle can effectively prevent relevant parts from falling into the switch cabinet when the fan fails, and the safety of the switch cabinet is ensured. The problems of large volume and large occupied space of the ventilation and pressure relief device in the prior art are solved.
Description
Technical Field
The invention relates to a ventilation and pressure relief device, a switch cabinet body and a switch cabinet.
Background
With the development of intelligent power grids, medium-high voltage switch cabinets are widely applied, and people put forward higher and more comprehensive requirements on the safety of the switch cabinets. In order to ensure the safety of the switch cabinet when the internal current reaches a certain level, a method of installing a fan in a cable chamber at the top of the switch cabinet is often adopted to cool the switch cabinet. The fan hangs the assembly at the cubical switchboard top, then installs fan dust cover on the fan and avoids external dust to get into inside the cubical switchboard, can play better heat dissipation and dustproof function to the cubical switchboard. However, when the fan at the top of the switch cabinet assembled in a hanging way fails, the fan or fan parts can fall off from the cable chamber to cause the switch cabinet to fail, and even cause a safety problem.
The application publication number is CN107131723A, and the chinese patent of filing date 2017.06.28 discloses a cubical switchboard and pressure release ventilation unit, and as shown in fig. 1, pressure release ventilation unit is including being used for setting up the pressure release cover 21 on the cabinet body, be equipped with the vent that corresponds with fan 22 on the pressure release cover 21, fan 22 sets up in the outside of vent, and fan 22 upper shield is equipped with and is used for preventing that the foreign matter from getting into the internal protection casing 23 of cabinet, is equipped with the bleeder vent on the protection casing 23. The pressure release cover 21 is provided with a pressure release plate 24, the fan 22 and the pressure release plate 24 are fixed on different side walls of the pressure release cover 21, the side wall of the pressure release cover 21 is provided with a pressure release opening 25, and the pressure release plate 24 is covered on the pressure release opening 25. The pressure relief ventilation device is fixed on the upper surface of a top plate 26 of the cabinet body through a pressure relief cover 21, and a switch cabinet ventilation opening and a top plate opening corresponding to the pressure relief cover opening are respectively arranged on the cabinet body and the top plate. The fan 22 and the fan driving module of the pressure relief ventilation device are covered by the protective cover 23, so that the fan and the fan She Diaola are avoided, a certain protective effect is achieved, but the fan is arranged at the top of the pressure relief cover, so that the whole pressure relief ventilation device is large in size and large in occupied space.
Disclosure of Invention
The invention aims to provide a ventilation and pressure relief device, which solves the problems of large volume and large occupied space of the ventilation and pressure relief device in the prior art; the invention also aims to provide a switch cabinet using the device.
In order to achieve the above purpose, the ventilation and pressure relief device, the switch cabinet body and the switch cabinet adopt the following technical scheme:
the technical scheme of the ventilation and pressure relief device is as follows:
technical scheme 1: the ventilation and pressure relief device comprises a pressure relief cover, wherein a pressure relief cover vent is arranged on the pressure relief cover, a fan is suspended and assembled inside the pressure relief cover, a baffle plate used for being fixed at the vent position of the switch cabinet is arranged at the bottom of the pressure relief cover, and a plurality of baffle plate vent holes used for communicating the switch cabinet with the pressure relief cover are formed in the baffle plate.
The beneficial effects are that: the fan hangs the assembly inside the pressure release cover, is equipped with pressure release cover vent on the pressure release cover, has guaranteed the inside ventilation heat dissipation of cubical switchboard, has reduced the volume of pressure release cover. Meanwhile, the baffle with the baffle vent holes is arranged at the bottom of the pressure release cover, so that the baffle can effectively prevent relevant parts from falling into the switch cabinet when the fan fails, and the safety of the switch cabinet is ensured. The problems of large volume and large occupied space of the ventilation and pressure relief device in the prior art are solved.
Technical scheme 2: on the basis of the technical scheme 1, two opposite side wall sections on the pressure relief cover gradually approach in the direction from the top of the pressure relief cover to the bottom of the pressure relief cover. Two opposite side walls that are close gradually can prevent that the fan from directly dropping to the baffle, have further guaranteed the safety of cubical switchboard.
Technical scheme 3: on the basis of the technical scheme 2, two opposite side wall sections on the pressure relief cover are respectively positioned at the middle positions of corresponding side walls on the pressure relief cover. The two opposite side walls are positioned at the middle positions of the side walls of the pressure relief cover, so that the structure is reasonable, and the assembly of the inner and outer parts of the pressure relief cover is convenient.
Technical scheme 4: on the basis of technical scheme 1 or 2 or 3, the pressure release cover vent sets up the top at the pressure release cover, detachably be connected with the pressure release board on the pressure release cover on at least one side lateral wall, the one end that is close to the pressure release cover top of pressure release board is connected with the pressure release cover through low strength connecting piece, and the other end of pressure release board is connected with the pressure release cover through high strength connecting piece, be equipped with the attenuate portion between the low strength connecting piece and the high strength connecting piece of pressure release board, the attenuate portion is close to the high strength connecting piece setting. The pressure relief plate is simple in structure and convenient to realize pressure relief inside the switch cabinet.
Technical scheme 5: on the basis of technical scheme 1 or 2 or 3, be equipped with the fan mounting panel that is used for installing the fan on the fan, the pressure release cover top is equipped with the fan mounting hole that the inside opening of pressure release cover was packed into to the air feed fan is greater than the fan diameter, the fan mounting panel is installed in pressure release cover top outside. The fan mounting panel is installed in the pressure release cover top outside, conveniently overhauls and changes of fan.
Technical scheme 6: on the basis of the technical scheme 5, four U-shaped grooves are formed in the top of the fan mounting plate, the notches of the U-shaped grooves are opposite to each other, and a dust cover is embedded in the U-shaped grooves. The dust cover is embedded in the U-shaped groove, so that the dust cover is convenient to install and detach.
The technical scheme of the switch cabinet body is as follows:
technical scheme 1: the switch cabinet comprises a switch cabinet body, wherein a switch cabinet ventilation opening is formed in the top of the switch cabinet body, a ventilation and pressure relief device is arranged outside the switch cabinet ventilation opening and comprises a pressure relief cover, the pressure relief cover is provided with a pressure relief cover ventilation opening, a fan is suspended and assembled inside the pressure relief cover, a baffle fixed at the switch cabinet ventilation opening is arranged at the bottom of the pressure relief cover, and baffle ventilation holes for communicating the switch cabinet with the pressure relief cover are formed in the baffle.
Technical scheme 2: on the basis of the technical scheme 1, two opposite side wall sections on the pressure relief cover gradually approach in the direction from the top of the pressure relief cover to the bottom of the pressure relief cover.
Technical scheme 3: on the basis of the technical scheme 2, two opposite side wall sections on the pressure relief cover are respectively positioned at the middle positions of corresponding side walls on the pressure relief cover.
Technical scheme 4: on the basis of technical scheme 1 or 2 or 3, the pressure release cover vent sets up the top at the pressure release cover, detachably be connected with the pressure release board on the pressure release cover on at least one side lateral wall, the one end that is close to the pressure release cover top of pressure release board is connected with the pressure release cover through low strength connecting piece, and the other end of pressure release board is connected with the pressure release cover through high strength connecting piece, be equipped with the attenuate portion between the low strength connecting piece and the high strength connecting piece of pressure release board, the attenuate portion is close to the high strength connecting piece setting.
Technical scheme 5: on the basis of technical scheme 1 or 2 or 3, be equipped with the fan mounting panel that is used for installing the fan on the fan, the pressure release cover top is equipped with the fan mounting hole that the inside opening of pressure release cover was packed into to the air feed fan is greater than the fan diameter, the fan mounting panel is installed in pressure release cover top outside.
Technical scheme 6: on the basis of the technical scheme 5, four U-shaped grooves are formed in the top of the fan mounting plate, the notches of the U-shaped grooves are opposite to each other, and a dust cover is embedded in the U-shaped grooves.
The technical scheme of the switch cabinet is as follows:
technical scheme 1: the switch cabinet comprises a cabinet body and electrical components arranged in the cabinet body, a switch cabinet ventilation opening is formed in the top of the cabinet body, a ventilation and pressure relief device is arranged outside the switch cabinet ventilation opening and comprises a pressure relief cover, a pressure relief cover ventilation opening is formed in the pressure relief cover, a fan is suspended and assembled in the pressure relief cover, a baffle fixed at the switch cabinet ventilation opening is arranged at the bottom of the pressure relief cover, and baffle ventilation holes for communicating the switch cabinet with the pressure relief cover are formed in the baffle.
Technical scheme 2: on the basis of the technical scheme 1, two opposite side wall sections on the pressure relief cover gradually approach in the direction from the top of the pressure relief cover to the bottom of the pressure relief cover.
Technical scheme 3: on the basis of the technical scheme 2, two opposite side wall sections on the pressure relief cover are respectively positioned at the middle positions of corresponding side walls on the pressure relief cover.
Technical scheme 4: on the basis of technical scheme 1 or 2 or 3, the pressure release cover vent sets up the top at the pressure release cover, detachably be connected with the pressure release board on the pressure release cover on at least one side lateral wall, the one end that is close to the pressure release cover top of pressure release board is connected with the pressure release cover through low strength connecting piece, and the other end of pressure release board is connected with the pressure release cover through high strength connecting piece, be equipped with the attenuate portion between the low strength connecting piece and the high strength connecting piece of pressure release board, the attenuate portion is close to the high strength connecting piece setting.
Technical scheme 5: on the basis of technical scheme 1 or 2 or 3, be equipped with the fan mounting panel that is used for installing the fan on the fan, the pressure release cover top is equipped with the fan mounting hole that the inside opening of pressure release cover was packed into to the air feed fan is greater than the fan diameter, the fan mounting panel is installed in pressure release cover top outside.
Technical scheme 6: on the basis of the technical scheme 5, four U-shaped grooves are formed in the top of the fan mounting plate, the notches of the U-shaped grooves are opposite to each other, and a dust cover is embedded in the U-shaped grooves.
Drawings
FIG. 1 is a schematic diagram of a prior art pressure relief vent;
fig. 2 is a schematic structural diagram of a first embodiment of the switch cabinet of the present invention;
FIG. 3 is a schematic view of the ventilation and pressure relief device of FIG. 2;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is an enlarged view of FIG. 4 at A;
FIG. 6 is a top view of FIG. 3;
in fig. 1: 21-pressure relief covers, 22-fans, 23-protective covers, 24-pressure relief plates, 25-pressure relief openings and 26-top plates;
in fig. 2 to 6: 10-cabinet body, 20-ventilation pressure relief device, 1-pressure relief cover top cap, 2-dust cover, 3-fan mounting panel, 4-fan, 5-nylon bolt, 6-pressure relief board, 7-flange bolt, 8-first pressure relief cover curb plate, 9-hexagon head bolt, 10-baffle, 11-second pressure relief cover curb plate, 12-mounting panel cable joint, 13-binding post box, 14-fan pencil, 15-top cap cable joint, 16-thinned portion.
Detailed Description
Embodiments of the ventilation and pressure relief device, the switch cabinet body and the switch cabinet of the invention are further described below with reference to the accompanying drawings.
In a specific embodiment of the switch cabinet of the present invention, as shown in fig. 2 to 6, the switch cabinet includes a cabinet body 10 and electrical components disposed in the cabinet body 10, and in order to release pressure and dissipate heat of the switch cabinet, a ventilation opening of the switch cabinet is disposed at the top of the cabinet body 10, and a ventilation and pressure release device 20 is disposed outside the ventilation opening of the switch cabinet. The ventilation and pressure relief device 20 comprises a pressure relief cover, which in this embodiment comprises a pressure relief cover top cap 1 with folded edges on two sides and a first pressure relief cover side plate 8 and a second pressure relief cover side plate 11 welded on the folded edges on two sides for convenient processing. In other embodiments the pressure relief boot may be an integrally formed structure.
Be equipped with the pressure release cover vent on the pressure release cover top cap 1, pressure release cover 1 inside hangs and is equipped with fan 4, can give off the heat in the cubical switchboard to the external world fast through fan 4, and then dispel the heat to the cubical switchboard, avoids the cubical switchboard because overheated safety problem that causes. In addition, in order to prevent the fan 4 from falling into the switch cabinet to cause the switch cabinet to fail or to cause safety problems when in failure, as shown in fig. 3, a side wall section is arranged at the middle position of two opposite side walls on the side wall of the pressure release cover, and the two opposite side wall sections are gradually close to each other in the direction from the top of the pressure release cover to the bottom of the pressure release cover. In order to facilitate the installation of the inner and outer parts of the pressure relief cover, the side wall parts of the embodiment, which are located at the upper and lower positions of the two opposite side wall sections, are parallel to each other. Therefore, even if the fan 4 breaks down and falls off, the fan can be buffered by the side wall section or clamped in the side wall section, so that the fan cannot fall into the switch cabinet directly. Considering fan trouble maintenance dismouting time, maintenance personnel probably carelessly makes less spare part landing to the pressure release cover in, is equipped with the baffle 10 of fixing in cubical switchboard vent department in pressure release cover bottom, and is equipped with a plurality of intercommunication cubical switchboard and pressure release cover's baffle air vent on baffle 10. On the one hand, the vent holes are arranged on the baffle 10, so that the heat dissipation of the switch cabinet is not affected, and the pressure release cover is conveniently connected and fixed with the cabinet body 10. On the other hand, the baffle 10 can ensure that the fan 4 and parts cannot fall into the switch cabinet, and the safety of the switch cabinet is ensured. It should be noted that, the bottom of pressure release cover is equipped with the hem, and baffle 10 both sides are through hexagon head bolt 9 with cabinet body 10 and pressure release cover fixed connection respectively. For the maintenance and the dismouting of making things convenient for fan 4, be equipped with fan mounting panel 3 on fan 4, fix fan 4 with screw on fan mounting panel 3 earlier during the installation, then install fan mounting panel 3 outside pressure release cover top cap 1 through the screw. When the fan 4 fails, the fan 4 can be overhauled and replaced only by disassembling the fan mounting plate 3. It should be noted that, be equipped with on the pressure release cover top cap 1 and supply fan 4 to pack into the inside opening of pressure release cover and be greater than the fan mounting hole of fan diameter, in order not to influence the heat dissipation of fan 4 simultaneously, be equipped with the air outlet that corresponds with fan 4 on the fan mounting panel 3 in the middle. In other embodiments, the fan mounting plate may be mounted inside the pressure relief boot top cover or the fan may be mounted directly on the pressure relief boot top plate.
In order to prevent foreign matters from entering the inside of the switch cabinet, a dust cover 2 for preventing the foreign matters from entering the inside of the cabinet body 10 is arranged on the upper part of the fan 4, and in order not to influence the heat dissipation of the ventilation and pressure relief device 20, an air hole for communicating the inside of the cabinet body 10 with the outside is arranged on the dust cover 2. It should be noted that, in order to meet the protection grade of the switch cabinet as IP4X, the diameter of the ventilation holes is smaller than 1mm. Considering that the dust cover 2 is to be disassembled and assembled firstly when the fan 4 is maintained, four U-shaped grooves are formed in the top of the fan mounting plate 3, the two U-shaped grooves are opposite, and the dust cover 2 is embedded in the U-shaped grooves. The U-shaped groove in the embodiment is provided with a bolt hole, and the U-shaped groove is arranged on the top cover 1 of the pressure relief cover through a screw. In other embodiments, the U-shaped grooves can be two, and the notches are opposite, and the dust cover 2 can also be directly arranged on the top plate 2 of the pressure release cover. It should be noted that, as shown in fig. 4 and 5, in order to facilitate maintenance and replacement of the components such as the fan 4 and the dust cover 2, the fan mounting plate 3 is mounted above the pressure relief cover top cover 1, then the U-shaped groove is mounted above the fan mounting plate 3, during mounting, firstly, the bolt holes of the fan mounting plate 3 are aligned with the bolt holes of the pressure relief cover top cover 1, then the bolt holes of the U-shaped groove are aligned with the bolt holes, and finally the U-shaped groove and the fan mounting plate 3 are fixed on the pressure relief cover top cover 1 through bolts. The bolt in this embodiment is a hexagon head bolt with good connection stability. In other embodiments, the sequence of the top cover of the pressure relief cover, the U-shaped groove and the fan mounting plate in the up-down direction can be adjusted as required.
As shown in fig. 3 and fig. 4, in order to realize the pressure relief of the switch cabinet, the safety problem caused by the overlarge pressure inside the switch cabinet is avoided, a pressure relief plate 6 is detachably connected to a first pressure relief cover side plate 8 of the pressure relief cover, and the section of the pressure relief plate 6 is L-shaped for convenient installation. The side of the pressure relief plate 6 is fixed on the first pressure relief cover side plate 8 through bolts, and a pressure relief hole is correspondingly formed in the first pressure relief cover side plate 8, and the pressure relief plate 6 is covered on the pressure relief hole. For convenient pressure release, the one end that is close to pressure release cover top of pressure release board 6 is connected with pressure release cover's first pressure release cover curb plate 8 through the low strength connecting piece, and pressure release board 6's the other end is connected with pressure release cover's first pressure release cover curb plate 8 through the high strength connecting piece, is equipped with thinning portion 16 in the upper end of high strength connecting piece simultaneously. The low-strength connecting piece in this embodiment is a nylon bolt 5, the high-strength connecting piece is a flange bolt 7, in other embodiments the low-strength connecting piece may be another plastic bolt such as a polyethylene bolt, and the high-strength connecting piece may be another bolt with larger structural strength such as a self-tapping screw. When the pressure in the switch cabinet is increased to a certain pressure, the nylon bolt 5 is sheared under the action of the pressure, and the pressure release plate 6 releases the pressure; when the pressure continues to increase, the thinning part 16 breaks, and the pressure release plate 6 is opened to release pressure inside the switch cabinet, so that the safety of the switch cabinet is ensured. When the pressure in the switchgear is too high, the nylon bolt 5 and the thinned portion 16 are mostly cut at the same time to release pressure. The pressure relief plate 6 has reasonable structure, convenient disassembly, cleaning and installation and wide application range.
As shown in fig. 6, in order to facilitate the disassembly and assembly of the fan 4, a terminal box 13 and a mounting plate cable connector 12 are arranged on the fan mounting plate 3, and a top cover cable connector 15 is correspondingly arranged on the pressure release cover top cover 1. Each fan power cord is connected on mounting panel cable joint 12, and binding post box 13 one end is connected at mounting panel cable joint 12, and top cap cable joint 15 is connected to the other end, and inside orderly being equipped with fan pencil 14 of binding post box 13, the inside power of cubical switchboard is connected to the other end of top cap cable joint 15. When the fan is required to be overhauled, the fan power supply can be cut off only by disconnecting the connection terminal box 13 from the top cover cable joint 15, and the operation is convenient. The pressure relief dustproof device not only ensures the protection level of the switch cabinet, but also is provided with the baffle below the fan, so that the fan or fan parts fall into the cable chamber of the switch cabinet to cause faults when the fan fails. The switch cabinet is cooled and dustproof during normal operation, the pressure of the elevated high-temperature high-pressure gas is relieved normally when the pressure of the high-temperature high-pressure gas is overlarge during faults in the cabinet body, and the fan can prevent the fan from falling off and is convenient to detach and overhaul during faults. The problems of failure and safety of the switch cabinet caused by the fact that the fan or fan parts fall into the switch cabinet are avoided. The problems of large volume and large occupied space of the ventilation and pressure relief device in the prior art are solved.
The embodiment of the ventilation and pressure relief device of the invention has the same structure as that of the embodiment of the switch cabinet of the invention, and is not repeated.
In the embodiment of the switch cabinet body, the top of the switch cabinet body is provided with the switch cabinet ventilation opening, the outer side of the switch cabinet ventilation opening is provided with the ventilation and pressure relief device, and the ventilation and pressure relief device in the embodiment has the same structure as that of the embodiment of the switch cabinet of the invention and is not repeated.
Claims (15)
1. The ventilation and pressure relief device comprises a pressure relief cover, wherein a pressure relief cover vent is arranged on the pressure relief cover, and the ventilation and pressure relief device is characterized in that a fan is hung and assembled inside the pressure relief cover, a baffle plate used for being fixed at the position of the vent hole of the switch cabinet is arranged at the bottom of the pressure relief cover, a plurality of baffle plate vent holes used for communicating the switch cabinet with the pressure relief cover are formed in the baffle plate, and two opposite side wall sections on the pressure relief cover are gradually close to each other in the direction from the top of the pressure relief cover to the bottom of the pressure relief cover.
2. The venting and pressure relief device of claim 1, wherein two opposing sidewall segments on the pressure relief housing are each intermediate corresponding sidewalls on the pressure relief housing.
3. The ventilation and pressure relief device according to claim 1 or 2, characterized in that the pressure relief cover vent is arranged at the top of the pressure relief cover, a pressure relief plate is detachably connected to at least one side wall of the pressure relief cover, one end of the pressure relief plate, which is close to the top of the pressure relief cover, is connected with the pressure relief cover through a low-strength connecting piece, the other end of the pressure relief plate is connected with the pressure relief cover through a high-strength connecting piece, a thinning part is arranged between the low-strength connecting piece and the high-strength connecting piece of the pressure relief plate, and the thinning part is arranged close to the high-strength connecting piece.
4. The ventilation and pressure relief device according to claim 1 or 2, wherein a fan mounting plate for mounting the fan is arranged on the fan, a fan mounting hole with an opening larger than the diameter of the fan for mounting the fan inside the pressure relief cover is arranged at the top of the pressure relief cover, and the fan mounting plate is arranged at the outer side of the top of the pressure relief cover.
5. The ventilation and pressure relief device according to claim 4, wherein four U-shaped grooves are formed in the top of said fan mounting plate, the notches of said U-shaped grooves are opposite to each other, and a dust cover is embedded in said U-shaped grooves.
6. The switch cabinet body, cabinet body top are equipped with the switch cabinet vent, the switch cabinet vent outside is equipped with ventilation pressure relief device, ventilation pressure relief device includes the pressure release cover, be equipped with the pressure release cover vent on the pressure release cover, characterized by, the inside fan that has hung of pressure release cover, pressure release cover bottom is equipped with the baffle of fixing in switch cabinet vent department, be equipped with the baffle air vent of a plurality of intercommunication switch cabinets and pressure release cover on the baffle, pressure release cover is last to have two relative lateral wall sections to be close to gradually in the direction from pressure release cover top to pressure release cover bottom.
7. The switchgear cabinet of claim 6 wherein two opposing side wall sections on the pressure relief housing are each intermediate corresponding side walls on the pressure relief housing.
8. The switch cabinet body according to claim 6 or 7, wherein the vent of the pressure release cover is arranged at the top of the pressure release cover, a pressure release plate is detachably connected to at least one side wall of the pressure release cover, one end of the pressure release plate, which is close to the top of the pressure release cover, is connected with the pressure release cover through a low-strength connecting piece, the other end of the pressure release plate is connected with the pressure release cover through a high-strength connecting piece, a thinning part is arranged between the low-strength connecting piece and the high-strength connecting piece of the pressure release plate, and the thinning part is arranged close to the high-strength connecting piece.
9. The switch cabinet according to claim 6 or 7, wherein a fan mounting plate for mounting the fan is arranged on the fan, a fan mounting hole with an opening larger than the diameter of the fan for mounting the fan inside the pressure release cover is arranged at the top of the pressure release cover, and the fan mounting plate is arranged at the outer side of the top of the pressure release cover.
10. The switch cabinet of claim 9, wherein four U-shaped grooves are arranged at the top of the fan mounting plate, the notches of the U-shaped grooves are opposite to each other, and a dust cover is embedded in the U-shaped grooves.
11. The switch cabinet comprises a cabinet body and electrical components arranged in the cabinet body, a switch cabinet vent is arranged at the top of the cabinet body, a ventilation and pressure relief device is arranged at the outer side of the switch cabinet vent, the ventilation and pressure relief device comprises a pressure relief cover, a pressure relief cover vent is arranged on the pressure relief cover, and the switch cabinet is characterized in that a fan is suspended and assembled inside the pressure relief cover, a baffle fixed at the switch cabinet vent is arranged at the bottom of the pressure relief cover, a plurality of baffle vent holes for communicating the switch cabinet with the pressure relief cover are formed in the baffle, and two opposite side wall sections on the pressure relief cover are gradually close to each other in the direction from the top of the pressure relief cover to the bottom of the pressure relief cover.
12. The switchgear as claimed in claim 11, wherein two opposed side wall sections of the pressure relief housing are each intermediate corresponding side walls of the pressure relief housing.
13. The switch cabinet according to claim 11 or 12, wherein the vent of the pressure release cover is arranged at the top of the pressure release cover, a pressure release plate is detachably connected to at least one side wall of the pressure release cover, one end of the pressure release plate, which is close to the top of the pressure release cover, is connected with the pressure release cover through a low-strength connecting piece, the other end of the pressure release plate is connected with the pressure release cover through a high-strength connecting piece, a thinning part is arranged between the low-strength connecting piece and the high-strength connecting piece of the pressure release plate, and the thinning part is arranged close to the high-strength connecting piece.
14. The switch cabinet of claim 11 or 12, wherein a fan mounting plate for mounting the fan is arranged on the fan, a fan mounting hole with an opening larger than the diameter of the fan for mounting the fan inside the pressure release cover is arranged at the top of the pressure release cover, and the fan mounting plate is arranged at the outer side of the top of the pressure release cover.
15. The switch cabinet of claim 14, wherein four U-shaped grooves are arranged at the top of the fan mounting plate, the notches of the U-shaped grooves are opposite to each other, and a dust cover is embedded in the U-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108842.9A CN107769039B (en) | 2017-11-11 | 2017-11-11 | Ventilation and pressure relief device, switch cabinet body and switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711108842.9A CN107769039B (en) | 2017-11-11 | 2017-11-11 | Ventilation and pressure relief device, switch cabinet body and switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107769039A CN107769039A (en) | 2018-03-06 |
| CN107769039B true CN107769039B (en) | 2023-09-19 |
Family
ID=61272797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711108842.9A Active CN107769039B (en) | 2017-11-11 | 2017-11-11 | Ventilation and pressure relief device, switch cabinet body and switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769039B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462151A (en) * | 2018-11-14 | 2019-03-12 | 遵义华正电缆桥架有限公司 | A kind of energy-saving safe power distribution cabinet |
| CN109244857B (en) * | 2018-11-15 | 2023-11-10 | 国网浙江省电力有限公司常山县供电公司 | Dustproof pressure relief device of electrical switch cabinet |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09182222A (en) * | 1995-12-22 | 1997-07-11 | Nissin Electric Co Ltd | Ventilation device of switch gear |
| CN202737346U (en) * | 2012-06-11 | 2013-02-13 | 平高集团有限公司 | Switch cabinet |
| CN202997360U (en) * | 2012-11-30 | 2013-06-12 | 天水长城开关厂有限公司 | Large current cabinet handcart chamber heat-dissipation and pressure-release device |
| CN203466461U (en) * | 2013-08-22 | 2014-03-05 | 广州穗达电气有限公司 | Built-in cabinet |
| CN204179508U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of pressure relief device of switch cabinet |
| CN205051186U (en) * | 2015-10-09 | 2016-02-24 | 株洲时代装备技术有限责任公司 | Direct current switch cabinet pressure relief device |
| DE102015122557A1 (en) * | 2015-12-22 | 2017-06-22 | Schneider Electric Industries Sas | breather |
| CN207426503U (en) * | 2017-11-11 | 2018-05-29 | 河南森源电气股份有限公司 | A kind of ventilation and pressure release device, switch cabinet body and switchgear |
-
2017
- 2017-11-11 CN CN201711108842.9A patent/CN107769039B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09182222A (en) * | 1995-12-22 | 1997-07-11 | Nissin Electric Co Ltd | Ventilation device of switch gear |
| CN202737346U (en) * | 2012-06-11 | 2013-02-13 | 平高集团有限公司 | Switch cabinet |
| CN202997360U (en) * | 2012-11-30 | 2013-06-12 | 天水长城开关厂有限公司 | Large current cabinet handcart chamber heat-dissipation and pressure-release device |
| CN203466461U (en) * | 2013-08-22 | 2014-03-05 | 广州穗达电气有限公司 | Built-in cabinet |
| CN204179508U (en) * | 2014-10-30 | 2015-02-25 | 成都科星电力电器有限公司 | A kind of pressure relief device of switch cabinet |
| CN205051186U (en) * | 2015-10-09 | 2016-02-24 | 株洲时代装备技术有限责任公司 | Direct current switch cabinet pressure relief device |
| DE102015122557A1 (en) * | 2015-12-22 | 2017-06-22 | Schneider Electric Industries Sas | breather |
| CN207426503U (en) * | 2017-11-11 | 2018-05-29 | 河南森源电气股份有限公司 | A kind of ventilation and pressure release device, switch cabinet body and switchgear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107769039A (en) | 2018-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107769039B (en) | Ventilation and pressure relief device, switch cabinet body and switch cabinet | |
| CN207426503U (en) | A kind of ventilation and pressure release device, switch cabinet body and switchgear | |
| CN211265361U (en) | Relay shell convenient to assemble and disassemble | |
| CN205195088U (en) | Distribution box | |
| CN210349727U (en) | Circuit breaker convenient to equipment and maintenance | |
| CN209299634U (en) | A kind of electric cabinet and air conditioner | |
| CN202797684U (en) | Low-voltage power distribution cabinet | |
| CN218388242U (en) | Intelligent control system of electric dust removal high-voltage power supply | |
| CN220570072U (en) | Dynamic dustproof ventilation device for control cabinet | |
| CN215005697U (en) | Partial discharge monitoring voice alarm indicating module | |
| CN219123712U (en) | Power distribution cabinet with automatic power-off assembly | |
| CN220306783U (en) | Suspension type distribution box | |
| CN215897108U (en) | Automatic switch board of mechanical engineering | |
| CN213027060U (en) | Outdoor high-low voltage distribution box | |
| CN219392583U (en) | Industrial control box structure | |
| CN207566635U (en) | A kind of water proof and dust proof elevator control cabinet | |
| CN220139069U (en) | High-low voltage power distribution cabinet | |
| CN209690367U (en) | A kind of protection system of automatic control distribution device intelligence leak current fault indicator | |
| CN215497682U (en) | High-efficient power distribution cabinet of dust-protection type | |
| CN213863291U (en) | A storage device for robot system | |
| CN217848662U (en) | Damp-proof heat dissipation protection type distribution equipment | |
| CN216289610U (en) | Built-in low-voltage switchgear who has pressure release protective structure | |
| CN215529624U (en) | Low-voltage bus electricity interference control cabinet | |
| CN220324991U (en) | Power distribution cabinet with filtering device | |
| CN212726210U (en) | Explosion-proof type electrical control cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |