CN216774047U - Pressure relief structure of switch cabinet - Google Patents
Pressure relief structure of switch cabinet Download PDFInfo
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- CN216774047U CN216774047U CN202123431067.5U CN202123431067U CN216774047U CN 216774047 U CN216774047 U CN 216774047U CN 202123431067 U CN202123431067 U CN 202123431067U CN 216774047 U CN216774047 U CN 216774047U
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Abstract
The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet pressure relief structure which comprises a cabinet body top plate, a convex cover, a pressure relief cover plate and a heat dissipation assembly, wherein a plurality of pressure relief holes are formed in the cabinet body top plate, the convex cover is arranged on the cabinet body top plate and covers the pressure relief holes, the convex cover is of a cylindrical structure with an upper opening and a lower opening, the pressure relief cover plate is arranged at the upper end of the convex cover and seals the upper opening of the convex cover, one end of the pressure relief cover plate is hinged with the side wall of the convex cover, the other end of the pressure relief cover plate is connected with the side wall of the convex cover through a nylon bolt, the heat dissipation assembly is arranged at the upper end of the pressure relief cover plate, the pressure relief cover plate is provided with a plurality of heat dissipation holes which enable the heat dissipation assembly to be communicated with the inner cavity of the convex cover, a plurality of guide pillars are arranged at the lower end of the pressure relief cover plate, a protection plate which is connected with the guide pillars in a sliding mode is arranged on the guide pillars, and the size of the protection plate can seal all the heat dissipation holes when the protection plate moves upwards along the guide pillars. According to the utility model, the heat dissipation assembly can effectively dissipate heat when the switch cabinet works normally, and the function of the pressure relief cover plate is not influenced when the switch cabinet has an arc fault.
Description
Technical Field
The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet pressure relief structure.
Background
Switch cabinet is applied to among the electric power system in a large number, and in actual operation because reasons such as insulation aging, maloperation, foreign matter and overvoltage lead to inside trouble electric arc accident to take place occasionally, and electric arc burning releases huge energy in the short time, causes the internal gas of cabinet to expand, pressure surge, can lead to the cabinet body to appear bursting under powerful pressure, even causes the conflagration.
The most common pressure relief mode at present is to install a pressure relief cover plate on each compartment of the switch cabinet, wherein one end of the pressure relief cover plate is fixed by a metal screw, the other end of the pressure relief cover plate is fixed by a nylon screw, when a fault electric arc occurs, the nylon screw is disconnected to release pressure in time, and the metal screw enables the pressure relief cover plate not to fly up to hurt people. However, the current pressure relief mode has the following problems: one end of the pressure relief cover plate is fixed by a metal screw, a pressure relief opening opened by the pressure relief cover plate is limited when a fault electric arc occurs, and the pressure relief cover plate can be deformed and cannot be used continuously due to strong pressure generated in the switch cabinet; in addition, the existing pressure relief structure is generally better in sealing performance and is not beneficial to heat dissipation of the switch cabinet when the switch cabinet is used at ordinary times.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a switch cabinet pressure relief structure.
The utility model adopts the following technical scheme: the utility model provides a cubical switchboard pressure release structure, includes cabinet body roof, convex cover, pressure release apron, radiator unit, be equipped with a plurality of pressure release holes on the cabinet body roof, the convex cover is established on cabinet body roof and is established the pressure release escutcheon, the convex cover is upper and lower open-ended tubular structure, the pressure release apron is established in the upper end of convex cover and is sealed convex cover upper end opening, the one end of pressure release apron is connected with the lateral wall of convex cover is articulated, and the other end passes through nylon bolted connection with the lateral wall of convex cover, radiator unit establishes the upper end at the pressure release apron, be equipped with a plurality of louvres that make radiator unit and convex cover inner chamber intercommunication on the pressure release apron, the lower extreme of pressure release apron is equipped with a plurality of guide pillars, be equipped with its sliding connection's guard plate on the guide pillar, the guard plate size can be followed when the guide pillar shifts up with the louvre whole closed.
Preferably, the top plate of the cabinet body is further provided with a baffle fixedly connected with the top plate of the cabinet body, and the baffle is provided with a plurality of ventilation holes communicated with the inner cavity of the convex cover.
Preferably, the middle part of baffle upwards the arch form one and release the pressure chamber, the ventilation hole is located the top inner wall in pressure chamber, moreover release the pressure chamber and be located the inner chamber of convex cover.
Preferably, the peripheral side wall of the pressure relief cavity abuts against the inner wall of the convex cover.
Preferably, the middle upper end of the right side wall of the convex cover is provided with a positioning nut, and the nylon bolt penetrates through the right side of the pressure relief cover plate and is in threaded connection with the positioning nut.
Preferably, the lower end of the guide pillar is provided with a limiting plate, the lower end face of the protection plate is abutted to the limiting plate, and a certain gap is formed between the upper end face of the protection plate and the lower end face of the pressure relief cover plate.
Preferably, the heat dissipation assembly comprises a fan and a fan cover, the fan cover covers the heat dissipation holes, the fan is arranged in the fan cover, one end of the fan is connected with the pressure relief cover plate, a dust screen is arranged at the upper end of the fan cover, and the air exhaust end of the fan faces the dust screen during working.
Preferably, the upper end of the fan cover is provided with a supporting plate, two ends of the supporting plate are respectively connected with the front inner wall and the rear inner wall of the fan cover, the upper end of the supporting plate is provided with a dust cover, a certain gap is formed between the lower end face of the dust cover and the dust screen, and the dust screen can be completely covered by the dust cover.
The utility model has at least one of the following beneficial effects:
when the switch cabinet normally works, the heat dissipation assembly can be sequentially communicated with the inner cavity of the convex cover and the inner cavity of the switch cabinet through the heat dissipation holes in the pressure relief cover plate, so that heat is effectively dissipated to the switch cabinet, and the heat dissipation performance of the switch cabinet is improved; when the switch cabinet has an arc fault, the protection plate can move upwards along the guide post until the protection plate is abutted against the lower end face of the pressure relief cover plate due to huge air pressure impact, so that the heat dissipation holes are sealed, the heat dissipation assembly loses the effect, one end of the pressure relief cover plate, which is provided with the nylon bolt, is flushed by strong pressure, and the other end of the pressure relief cover plate is hinged with the convex cover, so that the pressure relief cover plate can be opened by the strong pressure, the upper end opening of the convex cover is completely opened, the pressure is quickly relieved, the switch cabinet is not easy to explode, the pressure relief cover plate cannot deform after being flushed, the switch cabinet can be reused, and a subsequent worker only needs to replace a new nylon bolt; the pressure relief structure has good heat dissipation performance when the switch cabinet works normally, and can also perform efficient pressure relief when the switch cabinet relieves pressure, so that the practicability is good.
Drawings
FIG. 1 is a schematic view of the internal structure of a preferred embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 3 is a top plan view of a top panel of the cabinet in accordance with the preferred embodiment of the present invention;
FIG. 4 is a schematic top view of a baffle in a preferred embodiment of the utility model;
FIG. 5 is a schematic top view of a pressure relief cover in accordance with a preferred embodiment of the present invention;
FIG. 6 is a top view of a dust cap in accordance with a preferred embodiment of the present invention.
Description of reference numerals:
11 cabinet body top plate, 111 pressure relief hole, 12 convex cover, 121 positioning nut, 13 pressure relief cover plate, 131 nylon bolt, 132 heat dissipation hole, 14 heat dissipation assembly, 141 fan, 142 fan cover, 143 dust screen, 144 supporting plate, 145 dust cover, 15 guide post, 151 limiting plate, 16 protection plate, 17 baffle, 171 ventilation hole, 172 pressure relief cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise" and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present invention and simplifying the description, and do not refer to or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
Referring to fig. 1 to 6, a switch cabinet pressure relief structure according to a preferred embodiment of the present invention includes a cabinet top plate 11, a convex cover 12, pressure release apron 13, radiator unit 14, be equipped with a plurality of pressure release holes 111 on cabinet body roof 11, convex cover 12 is established on cabinet body roof 11 and is covered pressure release hole 111 and establish, convex cover 12 is upper and lower open-ended tubular structure, pressure release apron 13 is established in the upper end of convex cover 12 and is closed convex cover 12 upper end opening, the one end of pressure release apron 13 is connected with the lateral wall of convex cover 12 is articulated, the other end passes through nylon bolt 131 with the lateral wall of convex cover 12 and is connected, radiator unit 14 establishes the upper end at pressure release apron 13, be equipped with a plurality of louvres 132 that make radiator unit 14 and convex cover 12 inner chamber intercommunication on the pressure release apron 13, the lower extreme of pressure release apron 13 is equipped with a plurality of guide pillars 15, be equipped with its sliding connection's guard plate 16 on guide pillar 15, 16 size can be in guard plate 16 along guide pillar 15 when shifting up with all closed louvres 132.
When the switch cabinet normally works, the heat dissipation assembly 14 can be sequentially communicated with the inner cavity of the convex cover 12 and the inner cavity of the switch cabinet through the heat dissipation holes 132 on the pressure relief cover plate 13, so that heat dissipation of the switch cabinet is effectively realized, and the heat dissipation performance of the switch cabinet is improved; when an arc fault occurs in the switch cabinet, the protection plate 16 can move upwards along the guide post 15 by huge air pressure impact until the protection plate abuts against the lower end face of the pressure relief cover plate 13, so that the heat dissipation holes 132 are closed, the heat dissipation assembly 14 loses the function, the protection plate 16 plays a role of protecting the heat dissipation assembly 14, one end, provided with the nylon bolt 131, of the pressure relief cover plate 13 is flushed by strong pressure, the other end of the pressure relief cover plate is hinged with the convex cover 12, so that the pressure relief cover plate 13 can be opened by the strong pressure, the upper end opening of the convex cover 12 is completely opened, rapid pressure relief is achieved, the switch cabinet is not prone to explosion, the pressure relief cover plate 13 cannot deform after being flushed, the switch cabinet can be reused, and a subsequent worker only needs to replace the new nylon bolt 131; the pressure relief structure has good heat dissipation performance when the switch cabinet works normally, can perform efficient pressure relief when the switch cabinet relieves pressure, and is good in practicability.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
the top plate 11 of the cabinet body is also provided with a baffle 17 fixedly connected with the top plate, the baffle 17 is provided with a plurality of vent holes 171 communicated with the inner cavity of the convex cover 12, when the switch cabinet has an arc fault, part of spare parts may fly out from the pressure relief holes 111 under strong pressure, and the baffle 17 can play a role of blocking the spare parts in the switch cabinet under the condition that normal pressure relief is not influenced, so that the situation that the spare parts are splashed around to cause accidental injury is prevented; in this embodiment, nine pressure relief holes 111 are provided and distributed in a grid of nine squares; the vent holes 171 are laterally elongated holes, and five in total are provided.
The middle part of baffle 17 is protruding upwards and is formed a pressure release chamber 172, and ventilation hole 171 is located the top inner wall of pressure release chamber 172, and pressure release chamber 172 is located the inner chamber of convex cover 12 moreover, and the structure in pressure release chamber 172 can avoid baffle 17 to keep off pressure release hole 111 and die, influences the pressure release efficiency in pressure release hole 111.
The peripheral side walls of the pressure relief cavity 172 are abutted against the inner wall of the convex cover 12, so that the blocking of the baffle 17 to the pressure relief hole 111 is reduced, and the pressure relief efficiency of the pressure relief hole 111 is ensured; in this embodiment, the length of the vent hole 171 is slightly smaller than the left and right length of the top end of the pressure relief cavity 172.
A positioning nut 121 is arranged at the upper end of the middle part of the right side wall of the convex cover 12, a nylon bolt 131 penetrates through the right side of the pressure relief cover plate 13 and is in threaded connection with the positioning nut 121, the positioning nut 121 is fixed, and under the condition that the pressure relief cover plate 13 is subjected to upward strong impact force, the thread of the nylon bolt 131 is broken, so that the nylon bolt is disconnected with the positioning nut 121, and the pressure relief cover plate 13 is lifted; in this embodiment, set nut 121 is the metal material, can reuse, and set nut 121 is equipped with one, and the cubical switchboard normal during operation just can be with stable the closing of the opening in upper end 12 of convex cover with pressure release apron 13 through nylon bolt 131, can be timely when the cubical switchboard takes place the electric arc fault with pressure release apron 13 rush, avoid the cubical switchboard inside overstock and take place the explosion.
The lower end of the guide pillar 15 is provided with a limiting plate 151, the lower end face of the protection plate 16 is abutted against the limiting plate 151, the upper end face of the protection plate 16 is provided with a certain gap with the lower end face of the pressure relief cover plate 13, in a normal state, the protection plate 16 is abutted against the limiting plate 151, and when an arc fault occurs, the protection plate 16 moves upwards along the guide pillar 15 under the impact force until being abutted against the lower end face of the pressure relief cover plate 13, so that the heat dissipation assembly 14 can be prevented from being damaged by strong impact force; in this embodiment, limiting plate 151 can choose for use the nut with guide pillar 15 threaded connection, and guide pillar 15 is equipped with two at least, runs through the middle part of the guard plate 16 left and right sides respectively, guarantees that it slides steadily.
The heat dissipation assembly 14 comprises a fan 141 and a fan cover 142, the fan cover 142 covers the heat dissipation holes 132, the fan 141 is arranged in the fan cover 142, one end of the fan 141 is connected with the pressure relief cover plate 13, a dust screen 143 is arranged at the upper end of the fan cover 142, the air exhaust end of the fan 141 faces the dust screen 143 when the fan 141 works, the fan 141 is started when the switch cabinet works normally, heat can be effectively dissipated to the inner cavity of the switch cabinet, the dust screen 143 can prevent dust from falling into the inner cavity of the switch cabinet, and the protection plate 16 can also play a role of protecting sundries from falling into the switch cabinet; in this embodiment, the fan 141 is electrically connected to the heat dissipation system of the switch cabinet, the fan 141 is disposed in the middle of the pressure relief cover 13, and the plurality of heat dissipation holes 132 are circular holes.
The upper end of the fan cover 142 is provided with a supporting plate 144, two ends of the supporting plate 144 are respectively connected with the front inner wall and the rear inner wall of the fan cover 142, the upper end of the supporting plate 144 is provided with a dust cover 145, a certain gap is formed between the lower end surface of the dust cover 145 and the dust screen 143, the dust screen 143 can be completely covered by the dust cover 145, and the dust prevention effect of the heat dissipation assembly 14 can be further improved by arranging the dust cover 145; in this embodiment, the dust cover 145 is a hollow rectangular pyramid structure, and the support plate 144 is fixedly connected to the middle of the hollow rectangular pyramid structure, so that the dust cover has a good dust-proof and water-proof effect.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
Claims (8)
1. The switch cabinet pressure relief structure is characterized by comprising a cabinet body top plate (11), a convex cover (12), a pressure relief cover plate (13) and a heat dissipation assembly (14), wherein a plurality of pressure relief holes (111) are formed in the cabinet body top plate (11), the convex cover (12) is arranged on the cabinet body top plate (11) and covers the pressure relief holes (111), the convex cover (12) is of a cylindrical structure with an upper opening and a lower opening, the pressure relief cover plate (13) is arranged at the upper end of the convex cover (12) and seals the opening at the upper end of the convex cover (12), one end of the pressure relief cover plate (13) is hinged with the side wall of the convex cover (12), the other end of the pressure relief cover plate is connected with the side wall of the convex cover (12) through a nylon bolt (131), the heat dissipation assembly (14) is arranged at the upper end of the pressure relief cover plate (13), and a plurality of heat dissipation holes (132) which enable the heat dissipation assembly (14) to be communicated with the inner cavity of the convex cover plate (12) are formed in the pressure relief cover plate (13), the lower end of the pressure relief cover plate (13) is provided with a plurality of guide pillars (15), the guide pillars (15) are provided with protection plates (16) in sliding connection with the guide pillars, and the size of each protection plate (16) can enable the heat dissipation holes (132) to be completely sealed when the protection plates (16) move upwards along the guide pillars (15).
2. The switch cabinet pressure relief structure according to claim 1, wherein a baffle (17) fixedly connected with the cabinet body top plate (11) is further arranged on the cabinet body top plate, and a plurality of vent holes (171) communicated with the inner cavity of the convex cover (12) are formed in the baffle (17).
3. The decompression structure of a switch cabinet according to claim 2, wherein the middle of the baffle (17) protrudes upwards to form a decompression chamber (172), the vent hole (171) is located on the inner wall of the top end of the decompression chamber (172), and the decompression chamber (172) is located in the inner cavity of the convex cover (12).
4. The decompression structure of a switch cabinet according to claim 3, wherein the peripheral side wall of the decompression cavity (172) abuts against the inner wall of the convex cover (12).
5. The pressure relief structure of a switch cabinet according to claim 1, wherein a positioning nut (121) is arranged at the upper end of the middle part of the right side wall of the convex cover (12), and the nylon bolt (131) penetrates through the right side of the pressure relief cover plate (13) and is in threaded connection with the positioning nut (121).
6. The decompression structure of a switch cabinet according to claim 1, wherein a limiting plate (151) is disposed at a lower end of the guide post (15), a lower end surface of the protection plate (16) abuts against the limiting plate (151), and an upper end surface of the protection plate (16) has a certain gap with a lower end surface of the decompression cover plate (13).
7. The decompression structure of the switch cabinet according to claim 1, wherein the heat dissipation assembly (14) comprises a fan (141) and a fan cover (142), the fan cover (142) covers the heat dissipation holes (132), the fan (141) is arranged in the fan cover (142) and one end of the fan (141) is connected with the decompression cover plate (13), the upper end of the fan cover (142) is provided with a dust screen (143), and an air exhaust end of the fan (141) faces the dust screen (143) during operation.
8. The decompression structure of the switch cabinet according to claim 7, wherein a support plate (144) is arranged at an upper end of the fan guard (142), two ends of the support plate (144) are respectively connected with front and rear inner walls of the fan guard (142), a dust cover (145) is arranged at an upper end of the support plate (144), a certain gap is formed between a lower end face of the dust cover (145) and the dust screen (143), and the dust screen (143) can be completely covered by the dust cover (145).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123431067.5U CN216774047U (en) | 2021-12-30 | 2021-12-30 | Pressure relief structure of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123431067.5U CN216774047U (en) | 2021-12-30 | 2021-12-30 | Pressure relief structure of switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN216774047U true CN216774047U (en) | 2022-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123431067.5U Active CN216774047U (en) | 2021-12-30 | 2021-12-30 | Pressure relief structure of switch cabinet |
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| CN (1) | CN216774047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039695A (en) * | 2023-09-26 | 2023-11-10 | 云南博创电气设备有限公司 | Switch cabinet with deformation monitoring and automatic control functions |
-
2021
- 2021-12-30 CN CN202123431067.5U patent/CN216774047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039695A (en) * | 2023-09-26 | 2023-11-10 | 云南博创电气设备有限公司 | Switch cabinet with deformation monitoring and automatic control functions |
| CN117039695B (en) * | 2023-09-26 | 2024-01-30 | 云南博创电气设备有限公司 | Switch cabinet with deformation monitoring and automatic control functions |
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