CN215989975U - Safety explosion-proof device of 10kV high-voltage switch cabinet - Google Patents
Safety explosion-proof device of 10kV high-voltage switch cabinet Download PDFInfo
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- CN215989975U CN215989975U CN202122310634.5U CN202122310634U CN215989975U CN 215989975 U CN215989975 U CN 215989975U CN 202122310634 U CN202122310634 U CN 202122310634U CN 215989975 U CN215989975 U CN 215989975U
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Abstract
The utility model relates to the technical field of switch cabinet equipment, in particular to a safety explosion-proof device of a 10kV high-voltage switch cabinet, which comprises a switch cabinet top plate, wherein an air guide cylinder is arranged on the switch cabinet top plate, the opening of the air guide cylinder faces the outer side of the switch cabinet, and a plurality of vertical pressure relief holes are uniformly formed in the side wall of the air guide cylinder; a buckle cap is buckled on the outer side of the air guide cylinder, and the inner side wall of the buckle cap blocks the vertical pressure relief hole; a plurality of groups of first elastic pushing mechanisms are arranged in the vertical pressure relief holes, and each first elastic pushing mechanism consists of two first plate springs; the device can realize carrying out automatic explosion-proof processing work of pressure release to cubical switchboard inside, avoids the cubical switchboard phenomenon of bursting, and the convenience protects the cubical switchboard cabinet body and cubical switchboard internally mounted's distribution equipment, reduces the potential safety hazard, causes the injury to the workman when avoiding the cubical switchboard to burst simultaneously, improves the practicality.
Description
Technical Field
The utility model relates to the technical field of switch cabinet equipment, in particular to a safety explosion-proof device of a 10kV high-voltage switch cabinet.
Background
As is well known, the inside of a high-voltage switch cabinet is usually filled with inert gas in a high-voltage state, the inert gas is used for isolating and insulating the internal distribution equipment of the switch cabinet, so that an insulating layer is formed between the equipment, the electromagnetic interference generated between the equipment and the influence on the operation state of the switch cabinet are avoided, after the switch cabinet is operated for a long time, flashover electric arcs are easily generated inside the switch cabinet, the electric arcs act on the inert gas to cause the gas to expand rapidly and cause the switch cabinet to burst, the safety accidents of a power supply system are caused, the normal operation of the power supply system is influenced, and meanwhile, the burst switch cabinet easily causes injuries to workers.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a safety explosion-proof device of a 10kV high-voltage switch cabinet.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the safety explosion-proof device for the 10kV high-voltage switch cabinet comprises a switch cabinet top plate, wherein an air guide cylinder is mounted on the switch cabinet top plate, the opening of the air guide cylinder faces the outer side of the switch cabinet, and a plurality of vertical pressure relief holes are uniformly formed in the side wall of the air guide cylinder;
a buckle cap is buckled on the outer side of the air guide cylinder, and the inner side wall of the buckle cap blocks the vertical pressure relief hole;
a plurality of groups of first elastic pushing mechanisms are arranged in the vertical pressure relief holes, each first elastic pushing mechanism consists of two first plate springs, the arc directions of the two first plate springs are opposite, the tops of the first plate springs are fixed on the buckle caps, piston plates are arranged in the air guide cylinders in a sliding mode, and the bottoms of the first plate springs are fixed on the piston plates;
and a plurality of groups of second elastic pushing mechanisms are uniformly arranged on the outer wall of the buckling cap.
Furthermore, the second elastic pushing mechanism comprises a vertical through slot hole formed in the outer wall of the buckle cap and a sliding plate installed on the outer wall of the buckle cap, the sliding plate is located on the lower side of the vertical through slot hole, and the outer wall of the gas cylinder 2 blocks the vertical through slot hole;
a sliding sleeve is slidably sleeved on the sliding plate, a second plate spring is mounted on the side wall of the sliding sleeve, and the outer end of the second plate spring is mounted on the outer wall of the buckle cap;
the spring is installed at the top of the sliding plate, the inserting plate is installed at the top of the spring, one end, facing the gas cylinder, of the inserting plate is conical, the conical end of the gas cylinder penetrates through the vertical through groove hole and the side wall of the gas cylinder and extends into the gas cylinder, and the inserting plate is connected with the gas cylinder in a sliding mode;
wherein, the upper and lower both sides face of picture peg toper end is the inclined plane.
Further, the spout has all been seted up to the left and right sides of vertical logical slotted hole, it is provided with the slider to slide in the spout, install first telescopic link on the slider, install the mounting panel on the outside activity end of first telescopic link, the mounting panel with the picture peg is connected.
Further, a second telescopic rod is arranged in the spring, the movable end of the second telescopic rod is installed on the sliding sleeve, and the fixed end of the second telescopic rod is installed on the inserting plate.
Further, a limiting plate is installed at the outer end of the sliding plate.
Furthermore, the bottom of the piston plate is provided with a plurality of right-angle pushing frames in a contact manner, and the outer ends of the right-angle pushing frames are fixed on the switch cabinet top plate.
Further, a sealing ring is arranged at the edge of the bottom of the piston plate, and the side wall of the sealing ring is in contact with the inner wall of the gas cylinder.
Compared with the prior art, the utility model has the beneficial effects that: the second elastic pushing mechanism generates downward elastic pushing force to the buckling cap, so that the buckling cap is tightly buckled on the gas guide cylinder and blocks a plurality of vertical pressure relief holes on the gas guide cylinder, the piston plate blocks the inside of the gas guide cylinder, when inert gas in the switch cabinet is in a normal high-pressure state, the pushing force of the inert gas in the switch cabinet acts on the piston plate, at the moment, the elastic pushing force of the first plate spring also acts on the piston plate, so that the piston plate keeps a closed state on the gas guide cylinder, the inert gas is prevented from leaking through the gas guide cylinder, at the moment, the buckling cap performs secondary blocking treatment on the inert gas in the switch cabinet through the gas guide cylinder and the vertical pressure relief holes, the inert gas is prevented from leaking, when flashover electric arcs are generated in the switch cabinet and the inert gas is rapidly expanded, the pushing force of the gas borne by the piston plate is enhanced, the piston plate slides upwards in the gas guide cylinder and moves to the upper side of the vertical pressure relief holes, meanwhile, the piston plate pushes the first plate spring to generate elastic deformation, the first plate spring buckles the cap to synchronously generate upward elastic thrust, when the acting force of the first plate spring to the buckle cap overcomes the acting force of the second elastic pushing mechanism to the buckle cap, the piston plate pushes the buckle cap to move upwards through the first plate spring, the buckle cap stops shielding the vertical pressure relief hole, gas in the switch cabinet enters the gas guide tube and is discharged through the vertical pressure relief hole, the purpose of pressure relief and explosion prevention inside the switch cabinet is achieved, automatic pressure relief and explosion prevention processing can be achieved inside the switch cabinet, the switch cabinet is prevented from bursting, the switch cabinet is protected conveniently, potential safety hazards are reduced, injury to workers when the switch cabinet bursts is avoided, and practicability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the top plate of the switch cabinet shown in FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is an enlarged view of a portion B of FIG. 2;
in the drawings, the reference numbers: 1. a switch cabinet top plate; 2. an air guide cylinder; 3. a vertical pressure relief hole; 4. buckling a cap; 5. a first plate spring; 6. a piston plate; 7. a slide plate; 8. a sliding sleeve; 9. a second plate spring; 10. a spring; 11. inserting plates; 12. a chute; 13. a slider; 14. a first telescopic rod; 15. mounting a plate; 16. a second telescopic rod; 17. a limiting plate; 18. a right-angle pushing frame; 19. a seal ring; 20. vertical through slot hole.
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.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
As shown in fig. 1 to 4, the safety explosion-proof device for the 10kV high-voltage switch cabinet comprises a switch cabinet top plate 1, wherein an air guide cylinder 2 is installed on the switch cabinet top plate 1, an opening of the air guide cylinder 2 faces to the outer side of the switch cabinet, and a plurality of vertical pressure relief holes 3 are uniformly formed in the side wall of the air guide cylinder 2;
a buckle cap 4 is buckled on the outer side of the gas cylinder 2, and the inner side wall of the buckle cap 4 blocks the vertical pressure relief hole 3;
a plurality of groups of first elastic pushing mechanisms are arranged in the vertical pressure relief hole 3, each first elastic pushing mechanism consists of two first plate springs 5, the arc directions of the two first plate springs 5 are opposite, the tops of the first plate springs 5 are fixed on the buckling caps 4, piston plates 6 are arranged in the gas guide cylinders 2 in a sliding mode, and the bottoms of the first plate springs 5 are fixed on the piston plates 6;
and a plurality of groups of second elastic pushing mechanisms are uniformly arranged on the outer wall of the buckling cap 4.
In this embodiment, the second elastic pushing mechanism generates a downward elastic pushing force on the buckle cap 4, so that the buckle cap 4 is tightly buckled on the gas guide tube 2 and blocks the plurality of vertical pressure relief holes 3 on the gas guide tube 2, the piston plate 6 blocks the inside of the gas guide tube 2, when the inert gas in the switch cabinet is in a normal high-pressure state, the pushing force of the inert gas in the switch cabinet acts on the piston plate 6, at this time, the elastic pushing force of the first plate spring 5 also acts on the piston plate 6, so that the piston plate 6 keeps a closed state on the gas guide tube 2, the inert gas is prevented from leaking through the gas guide tube 2, at this time, the buckle cap 4 performs secondary blocking processing on the inert gas in the switch cabinet through the gas guide tube 2 and the vertical pressure relief holes 3, the inert gas leakage is prevented, when a flashover arc is generated in the switch cabinet and the inert gas expands rapidly, the pushing force of the piston plate 6 is strengthened, the piston plate 6 slides upwards in the gas guide cylinder 2 and moves to the upper side of the vertical pressure relief hole 3, meanwhile, the piston plate 6 pushes the first plate spring 5 to generate elastic deformation, at the moment, the first plate spring 5 synchronously generates upward elastic thrust on the buckle cap 4, when the acting force of the first plate spring 5 on the buckle cap 4 overcomes the acting force of the second elastic pushing mechanism on the buckle cap 4, the piston plate 6 pushes the buckle cap 4 to move upwards through the first plate spring 5, the buckle cap 4 stops shielding the vertical pressure relief hole 3, the gas in the switch cabinet enters the gas guide cylinder 2 and is discharged through the vertical pressure relief hole 3, thereby realizing the purpose of pressure relief and explosion prevention in the switch cabinet, the device can realize the automatic pressure relief and explosion prevention treatment work in the switch cabinet, avoid the switch cabinet from generating the explosion phenomenon, is convenient to protect the switch cabinet body and the distribution equipment arranged in the switch cabinet, and reduces the potential safety hazard, meanwhile, the damage to workers is avoided when the switch cabinet bursts, and the practicability is improved.
In this embodiment, detain cap 4 shift position according to the interior gas pressure intensity automatically regulated of cubical switchboard to automatically regulated detains cap 4 to the area that shelters from of vertical pressure release hole 3, conveniently carries out automatically regulated to the exhaust bore of vertical pressure release hole 3, and is opposite through the arc direction that makes two first leaf springs 5, can conveniently make two first leaf springs 5 keep balance to the effort of piston plate 6, conveniently makes piston plate 6 steady movement.
Preferably, the second elastic pushing mechanism comprises a vertical through-slot hole 20 formed in the outer wall of the buckle cap 4 and a sliding plate 7 mounted on the outer wall of the buckle cap 4, the sliding plate 7 is located at the lower side of the vertical through-slot hole 20, and the outer wall of the gas cylinder 2 blocks the vertical through-slot hole 20;
a sliding sleeve 8 is slidably sleeved on the sliding plate 7, a second plate spring 9 is mounted on the side wall of the sliding sleeve 8, and the outer end of the second plate spring 9 is mounted on the outer wall of the buckle cap 4;
a spring 10 is installed at the top of the sliding plate 7, an inserting plate 11 is installed at the top of the spring 10, one end of the inserting plate 11, which faces the gas cylinder 2, is tapered, the tapered end of the gas cylinder 2 penetrates through the vertical through groove hole 20 and the side wall of the gas cylinder 2 and extends into the gas cylinder 2, and the inserting plate 11 is connected with the gas cylinder 2 in a sliding manner;
wherein, the upper and lower both sides face of the tapered end of the flashboard 11 are inclined planes.
In this embodiment, the gas cylinder 2 blocks the inserting plate 11, the spring 10 generates downward elastic pushing force to the buckle cap 4 through the sliding sleeve 8 and the sliding plate 7, when the internal gas pressure of the switch cabinet is within a fixed range, the spring 10 pushes the buckle cap 4 to maintain a fixed state, when the internal gas pressure of the switch cabinet expands rapidly, the buckle cap 4 moves upward and pushes the spring 10 to generate elastic deformation, at this time, the buckle cap 4 overcomes the elastic pushing force of the spring 10, the second plate spring 9 generates elastic pulling force to the sliding sleeve 8, so that the sliding sleeve 8 maintains a state of being attached to the outer wall of the buckle cap 4, the sliding sleeve 8 is prevented from moving randomly, when the internal gas pressure of the switch cabinet is too high, the piston plate 6 moves upward and pushes the inserting plate 11 to move outward through the conical surface of the inserting plate 11, when the inserting plate 11 is separated from the gas cylinder 2, the piston plate 6 can push the buckle cap 4 to be separated from the gas cylinder 2 through the first plate spring 5, at this time, the gas in the switch cabinet can be discharged through the plurality of vertical pressure relief holes 3 on the gas cylinder 2 and the top opening of the gas cylinder 2, thereby achieving the purpose of completely releasing the gas in the switch cabinet.
In this embodiment, since the upper and lower sides of the tapered end of the insertion plate 11 are both provided with inclined surfaces, when the piston plate 6 contacts the insertion plate 11, the piston plate 6 pushes the insertion plate 11 to move outwards on the gas cylinder 2 through the inclined surface at the lower side of the insertion plate 11, and simultaneously, when the inclined surface at the upper side of the insertion plate 11 contacts the gas cylinder 2, the insertion plate 11 can be quickly separated from the gas cylinder 2 through the inclined surface at the upper side due to the action force of the spring 10 on the insertion plate 11, thereby achieving the purpose of quickly separating the insertion plate 11 from the gas cylinder 2.
As the optimization of the above embodiment, the left and right sides of the vertical through-slot hole 20 are both provided with the sliding groove 12, the sliding groove 12 is internally provided with the sliding block 13 in a sliding manner, the sliding block 13 is provided with the first telescopic rod 14, the outer side movable end of the first telescopic rod 14 is provided with the mounting plate 15, and the mounting plate 15 is connected with the inserting plate 11.
In this embodiment, when detaining cap 4 and gas cylinder 2 and producing relative movement, picture peg 11 drives slider 13 through mounting panel 15 and first telescopic link 14 and slides in spout 12, when picture peg 11 and gas cylinder 2 separation, picture peg 11 carries out concertina movement through mounting panel 15 pulling first telescopic link 14, through setting up spout 12, slider 13, first telescopic link 14 and mounting panel 15, can conveniently lead and support picture peg 11, simultaneously when gas cylinder 2 and detain cap 4 separation, slider 13, first telescopic link 14 and mounting panel 15 can be connected fixedly to picture peg 11, avoid spring 10 to promote picture peg 11 and swing at will on detaining cap 4, improve the fastness of being connected between picture peg 11 and the knot cap 4.
As a preferred feature of the above embodiment, a second telescopic rod 16 is disposed in the spring 10, a movable end of the second telescopic rod 16 is mounted on the sliding sleeve 8, and a fixed end of the second telescopic rod 16 is mounted on the insert plate 11.
In this embodiment, through setting up second telescopic link 16, can conveniently lead the processing to spring 10, when avoiding the distance between sliding sleeve 8 and the picture peg 11 to be close, spring 10 takes place distortion, conveniently makes spring 10 keep vertical state, and when picture peg 11 and gas guide tube 2 separated, picture peg 11 promoted sliding sleeve 8 through second telescopic link 16 and slides on slide 7 to lead picture peg 11.
Preferably, the outer end of the sliding plate 7 is provided with a limit plate 17.
In this embodiment, through setting up limiting plate 17, can conveniently carry on spacingly to the mobile position of sliding sleeve 8 on slide 7, avoid sliding sleeve 8 and slide 7 to break away from.
Preferably, as for the above embodiment, a plurality of right-angle pushing frames 18 are arranged at the bottom of the piston plate 6 in a contact manner, and the outer ends of the right-angle pushing frames 18 are fixed on the top plate 1 of the switch cabinet.
In this embodiment, the right-angle pushing frame 18 is arranged to conveniently limit the downward sliding position of the piston plate 6 in the gas cylinder 2, so as to prevent the piston plate 6 from moving to the lower side of the top plate 1 of the switch cabinet and entering the switch cabinet.
As a preferable mode of the above embodiment, a sealing ring 19 is provided at a bottom edge of the piston plate 6, and a side wall of the sealing ring 19 is in contact with an inner wall of the gas cylinder 2.
In this embodiment, the sealing ring 19 is provided to facilitate the sealing of the gap between the piston plate 6 and the gas cylinder 2, thereby improving the sealing performance of the piston plate 6.
The installation mode, the connection mode or the arrangement mode of the safety explosion-proof device for the 10kV high-voltage switch cabinet are common mechanical modes, and the safety explosion-proof device can be implemented as long as the beneficial effects of the safety explosion-proof device are achieved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The safety explosion-proof device for the 10kV high-voltage switch cabinet is characterized by comprising a switch cabinet top plate (1), wherein an air guide cylinder (2) is mounted on the switch cabinet top plate (1), the opening of the air guide cylinder (2) faces the outer side of the switch cabinet, and a plurality of vertical pressure relief holes (3) are uniformly formed in the side wall of the air guide cylinder (2);
a buckle cap (4) is buckled on the outer side of the gas cylinder (2), and the inner side wall of the buckle cap (4) blocks the vertical pressure relief hole (3);
a plurality of groups of first elastic pushing mechanisms are arranged in the vertical pressure relief hole (3), each first elastic pushing mechanism consists of two first plate springs (5), the arc directions of the two first plate springs (5) are opposite, the tops of the first plate springs (5) are fixed on the buckle caps (4), the air guide cylinder (2) is provided with a piston plate (6) in a sliding mode, and the bottoms of the first plate springs (5) are fixed on the piston plates (6);
and a plurality of groups of second elastic pushing mechanisms are uniformly arranged on the outer wall of the buckling cap (4).
2. The safety explosion-proof device for the 10kV high-voltage switch cabinet according to claim 1, wherein the second elastic pushing mechanism comprises a vertical through slot hole (20) formed in the outer wall of the buckle cap (4) and a sliding plate (7) installed on the outer wall of the buckle cap (4), the sliding plate (7) is located at the lower side of the vertical through slot hole (20), and the vertical through slot hole (20) is blocked by the outer wall of the gas cylinder (2);
a sliding sleeve (8) is slidably sleeved on the sliding plate (7), a second plate spring (9) is installed on the side wall of the sliding sleeve (8), and the outer end of the second plate spring (9) is installed on the outer wall of the buckle cap (4);
spring (10) is installed at the top of slide (7), picture peg (11) is installed at the top of spring (10), picture peg (11) set up to the toper towards the one end of gas cylinder (2), and the toper end of gas cylinder (2) passes vertical logical slotted hole (20) and gas cylinder (2) lateral wall and stretches into to in the gas cylinder (2), picture peg (11) with gas cylinder (2) sliding connection;
wherein, the upper and lower two side surfaces of the tapered end of the inserting plate (11) are inclined surfaces.
3. The safety explosion-proof device for the 10kV high-voltage switch cabinet according to claim 2, wherein sliding grooves (12) are formed in the left side and the right side of each vertical through groove hole (20), sliding blocks (13) are arranged in the sliding grooves (12) in a sliding mode, first telescopic rods (14) are installed on the sliding blocks (13), mounting plates (15) are installed on the outer movable ends of the first telescopic rods (14), and the mounting plates (15) are connected with the inserting plates (11).
4. A 10kV high-voltage switch cabinet safety explosion-proof device according to claim 3, wherein a second telescopic rod (16) is arranged in the spring (10), the movable end of the second telescopic rod (16) is mounted on the sliding sleeve (8), and the fixed end of the second telescopic rod (16) is mounted on the inserting plate (11).
5. A10 kV high-voltage switch cabinet safety explosion-proof device according to claim 4, wherein the outer end of the sliding plate (7) is provided with a limit plate (17).
6. The safety explosion-proof device for the 10kV high-voltage switch cabinet as claimed in claim 5, wherein a plurality of right-angle pushing frames (18) are arranged at the bottom of the piston plate (6) in a contact manner, and the outer ends of the right-angle pushing frames (18) are fixed on the top plate (1) of the switch cabinet.
7. The safety explosion-proof device for the 10kV high-voltage switch cabinet according to claim 6, wherein a sealing ring (19) is arranged at the bottom edge position of the piston plate (6), and the side wall of the sealing ring (19) is in contact with the inner wall of the gas cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122310634.5U CN215989975U (en) | 2021-09-23 | 2021-09-23 | Safety explosion-proof device of 10kV high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122310634.5U CN215989975U (en) | 2021-09-23 | 2021-09-23 | Safety explosion-proof device of 10kV high-voltage switch cabinet |
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| Publication Number | Publication Date |
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| CN215989975U true CN215989975U (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122310634.5U Active CN215989975U (en) | 2021-09-23 | 2021-09-23 | Safety explosion-proof device of 10kV high-voltage switch cabinet |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114725819A (en) * | 2022-06-08 | 2022-07-08 | 江苏德纪特电气有限公司 | Pressure relief device and switch cabinet with same |
| WO2023214392A1 (en) * | 2022-05-06 | 2023-11-09 | Envolventes Y Paquetizados Milem Sas Bic | Device for absorbing energy from a fluid |
| 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
- 2021-09-23 CN CN202122310634.5U patent/CN215989975U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023214392A1 (en) * | 2022-05-06 | 2023-11-09 | Envolventes Y Paquetizados Milem Sas Bic | Device for absorbing energy from a fluid |
| CN114725819A (en) * | 2022-06-08 | 2022-07-08 | 江苏德纪特电气有限公司 | Pressure relief device and switch cabinet with same |
| CN114725819B (en) * | 2022-06-08 | 2022-09-13 | 江苏德纪特电气有限公司 | Pressure relief device and switch cabinet with same |
| 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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