Arcing-proof lighting lampshade for high-voltage switch cabinet

Abstract

The invention discloses an arcing-proof lighting lampshade for a high-voltage switch cabinet, which comprises a lampshade body, a quick disassembly and assembly mechanism and a sealing element, and is characterized in that the lampshade body comprises a mounting bottom frame, the first surface of the mounting bottom frame is provided with a hollow mounting frame, the inner side of the mounting frame is provided with a lampshade body light-transmitting element, and the second surface of the mounting bottom frame is provided with the sealing element matched with the high-voltage switch cabinet; the mounting frame can disperse the stress of the lampshade body light-transmitting part and prevent the edge of the lampshade body light-transmitting part from being broken, so that the impact resistance of the lampshade is improved, the quick disassembly and assembly mechanisms are arranged at the four corners of the mounting bottom frame correspondingly and used for connecting the lampshade body and the high-voltage switch cabinet, and the quick disassembly and assembly mechanisms can unlock the connection state of the lampshade body and the high-voltage switch cabinet under the action of external force; and the connecting state can be recovered based on the self elastic force, so that the lampshade can be quickly disassembled and assembled and is convenient to install and maintain, and the stability and reliability of the lampshade are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-voltage cabinets, and particularly relates to a high-voltage switch cabinet anti-arc lighting lampshade. BACKGROUND

[0002] As a key equipment in the power system, the internal lighting system of the high-voltage switch cabinet needs to work stably in a high-voltage and high-arc risk environment. The traditional high-voltage switch cabinet usually adopts a plastic or acrylic lampshade, which can meet the lighting demand, but cannot resist the high-temperature and high-pressure shock wave generated by the sudden arc in the cabinet. In the prior art, a polycarbonate lampshade can improve the impact resistance, but is prone to yellowing and brittleness when exposed to ultraviolet light for a long time, and will melt and deform under the high temperature of the continuous arc. The prior art also uses a tempered glass lampshade to improve the mechanical strength, but the traditional tempered glass lampshade has the problems of heavy weight, difficult installation and maintenance, and the generation of sharp fragments after breaking, which leads to lampshade breakage, lighting failure and even secondary accidents.

[0003] Therefore, how to effectively improve the impact resistance of the lighting lampshade and facilitate installation and maintenance has become a problem to be solved in the field. SUMMARY

[0004] In view of the defects of the prior art, the purpose of the present application is to provide a high-voltage switch cabinet anti-arc lighting lampshade with strong impact resistance, easy installation and maintenance, and stability and reliability.

[0005] In order to achieve the above-mentioned purpose, the high-voltage switch cabinet anti-arc lighting lampshade provided by the present application comprises a cover body, a quick disassembly and assembly mechanism and a sealing element. The cover body comprises a mounting bottom frame, the first surface of the mounting bottom frame is provided with a hollow mounting frame, the inner side of the mounting frame is provided with a cover body light-transmitting element, and the second surface is provided with a sealing element matched with the high-voltage switch cabinet. The quick disassembly and assembly mechanism is arranged at the four corners of the mounting bottom frame respectively, and is used to connect the cover body and the high-voltage switch cabinet. The quick disassembly and assembly mechanism can unlock the connection state of the cover body and the high-voltage switch cabinet under the action of external force, and can also restore the connection state based on the elastic force of itself.

[0006] Further, the mounting frame is configured as a box structure with hollow periphery, and the cover body light-transmitting element comprises a first tempered glass, a second tempered glass, a third tempered glass and a fourth tempered glass arranged respectively at the periphery of the inner side of the mounting frame.

[0007] Further, the tempered glass, the second tempered glass, the third tempered glass and the fourth tempered glass are configured as a bridge-coupling type distribution structure.

[0008] Further, the quick dismounting mechanism comprises a first elastic arm and a second elastic arm distributed in a V shape, the first elastic arm and the second elastic arm are connected by an elastic element inside, and the first elastic arm and the second elastic arm are respectively provided with a fixed buckle and a connecting buckle at the end, the fixed buckle is connected with the cover body, and the connecting buckle is connected with the high-voltage switch cabinet.

[0009] Further, the mounting bottom frame is provided with a limiting slot, and the second elastic arm and the connecting buckle extend out of the limiting slot.

[0010] Further, the high-voltage switch cabinet is provided with a connecting hole for cooperating with the connecting buckle.

[0011] Further, the first elastic arm and the second elastic arm are integrated structures.

[0012] The high-voltage switch cabinet arc-proof lighting lamp cover provided by the application sets the cover body light-transmitting part inside the mounting frame, so that the mounting frame can disperse the edge stress of the cover body light-transmitting part, prevent the splashing of the fragments generated by the cracking of the cover body, and improve the impact resistance of the lamp cover. Further, the quick dismounting mechanism can unlock the connection state of the cover body and the high-voltage switch cabinet under the action of external force, and can also restore the connection state based on the elastic force of itself, so that the quick dismounting of the lamp cover can be realized, the installation and maintenance are facilitated, and the stability and reliability of the lamp cover are improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] The application will be further described below in combination with the drawings and specific embodiments.

[0014] Figure 1 and Figure 2 FIG. 1 is a schematic diagram of the overall structure of the high-voltage switch cabinet arc-proof lighting lamp cover provided by the application; Figure 3 and Figure 4 FIG. 3 is a structural schematic diagram of the cover body in the application; Figure 5 and Figure 6 FIG. 5 is a structural schematic diagram of the quick dismounting structure in the application; Figure 7 FIG. 7 is a structural schematic diagram of the second embodiment in the application; Figure 8 FIG. 9 is a structural schematic diagram of the third embodiment in the application; Figure 9 and Figure 10 FIG. 11 is a structural schematic diagram of the fourth embodiment in the application.

[0015] Reference signs: 1. cover body; 11. mounting bottom frame; 111. limiting slot 12. mounting frame; 13. cover body light-transmitting piece; 131. first tempered glass; 132. second tempered glass; 133. third tempered glass; 134. fourth tempered glass; 14. conductive layer; 15. flame-retardant layer; 16. pressure relief channel; 161. multi-stage baffle; 162. metal sintered mesh; 2. quick dismounting mechanism; 21. first elastic arm; 22. second elastic arm; 23. elastic piece; 24. fixed buckle; 25. connecting buckle; 3. sealing piece. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific drawings.

[0017] Example one Referring to Figure 1 and Figure 2 , which shows one example of the anti-arc lighting lamp cover for high-voltage switch cabinet provided by the present application.

[0018] The anti-arc lighting lamp cover for high-voltage switch cabinet of the present example mainly comprises a cover body 1, a quick dismounting mechanism 2 and a sealing piece 3.

[0019] The cover body 1 comprises a mounting bottom frame 11, the first surface of the mounting bottom frame 11 is provided with a hollow mounting frame 12, the inner side of the mounting frame 12 is provided with a cover body light-transmitting piece 13, and the second surface is provided with a sealing piece 3 matched with the high-voltage switch cabinet. The mounting frame 12 can disperse the stress of the cover body light-transmitting piece 13, preventing the edge of the cover body light-transmitting piece 13 from being broken, thereby improving the impact resistance of the present lamp cover. The quick dismounting mechanism 2 is arranged at the four corners of the mounting bottom frame 11 respectively, and is used to connect the cover body 1 and the high-voltage switch cabinet. The quick dismounting mechanism 2 can unlock the connection state of the cover body 1 and the high-voltage switch cabinet under the action of external force, and can also restore the connection state based on its own elastic force, realizing the quick dismounting of the lamp cover, facilitating installation and maintenance, thereby improving the stability and reliability of the present lamp cover.

[0020] In combination with Figure 3 and Figure 4 , wherein the mounting bottom frame 11 of the cover body 1 is configured as a rectangular hollow frame, the first surface of the mounting bottom frame 11 is provided with a mounting frame 12, the mounting frame 12 is configured as a box structure with hollow periphery, the cover body light-transmitting piece 13 is arranged at the inner side of the mounting frame 12, and the mounting frame 12 comprises a first tempered glass 131, a second tempered glass 132, a third tempered glass 133 and a fourth tempered glass 134 arranged at the inner side of the mounting frame 12 respectively.

[0021] Further, the first tempered glass 131, the second tempered glass 132, the third tempered glass 133 and the fourth tempered glass 134 are configured in a bridge distribution structure, staggered in spatial position and connected to each other, so that the surrounding tempered glasses abut and support each other, and the force between the surrounding tempered glasses can be transmitted and dispersed, thereby improving the installation stability of the cover light-transmitting piece 13 inside the installation frame 12.

[0022] Preferably, in this embodiment, the first tempered glass 131, the second tempered glass 132, the third tempered glass 133 and the fourth tempered glass 134 are composed of tempered glass with a thickness of 10 mm and a light transmittance of ≥91%, so that the impact resistance of the cover light-transmitting piece 13 reaches 50 J / cm 2 , which can absorb impact wave energy based on its own rigidity and improve impact resistance.

[0023] At the same time, the cover light-transmitting piece 13 is arranged inside the installation frame 12, so that the installation frame 12 can effectively protect the cover light-transmitting piece 13, disperse the edge stress of the surrounding tempered glasses, and reduce the risk of flying debris when the tempered glasses are broken by impact, thereby ensuring the stability and reliability of the lamp cover.

[0024] The cover 1 thus formed can effectively improve the impact resistance and reliability of the lamp cover. In order to quickly install the cover 1, the installation frame 12 is provided with a quick disassembly and assembly mechanism 2 at each corner, so that the quick disassembly and assembly mechanism 2 can install the cover 1 on the high-voltage switch cabinet and quickly lock and unlock the connection state of the cover 1 and the high-voltage switch cabinet, thereby facilitating the maintenance and repair of the lamp cover.

[0025] In combination Figure 5 and Figure 6 , specifically, the quick disassembly and assembly mechanism 2 comprises a first elastic arm 21, a second elastic arm 22 and an elastic piece 23. The first elastic arm 21 and the second elastic arm 22 are in V-shaped distribution, and the inner sides of the first elastic arm 21 and the second elastic arm 22 are respectively provided with oppositely distributed protrusions, so that the elastic piece 23 can be sleeved on the protrusions on the inner sides of the first elastic arm 21 and the second elastic arm 22, and cooperate with the first elastic arm 21 and the second elastic arm 22 to achieve elastic connection of the first elastic arm 21 and the second elastic arm 22.

[0026] Further, one end of the first elastic arm 21 and the second elastic arm 22 is connected to each other to form an integrated structure with stable structure, and the other end is respectively formed with a fixed buckle 24 and a connecting buckle 25, and the fixed buckle 24 and the connecting buckle 25 are respectively distributed at an angle with the first elastic arm 21 and the second elastic arm 22. Preferably, the fixed buckle 24 and the connecting buckle 25 are vertically distributed, so that the fixed buckle 24 and the connecting buckle 25 can be connected with the cover 1 and the high-voltage switch cabinet respectively, thereby ensuring the connection stability.

[0027] Corresponding to the second elastic arm 21, a limiting slot 111 is arranged on the mounting base frame 12, so that the second elastic arm 22 and the connecting buckle 25 can extend out of the limiting slot 111, and the high-voltage switch cabinet is connected through the connecting buckle 25, and the high-voltage switch cabinet is provided with a connecting hole for cooperating with the connecting buckle 25.

[0028] In this way, the first elastic arm 21 of the quick disassembly mechanism 2 is connected to the mounting base frame 12 through the fixed buckle 24, the second elastic arm 22 and the connecting buckle 25 extend out of the limiting slot 111, and the connecting buckle 25 is embedded in the connecting hole of the high-voltage switch cabinet, so that the cover body 1 is stably connected with the high-voltage switch cabinet, and at the same time, the elastic member 23 applies a pushing force to the first elastic arm 21 and the second elastic arm 22 based on the elastic force of the elastic member 23, which faces the outer side of the first elastic arm 21 and the second elastic arm 22, so that the connecting buckle 25 can be stably buckled into the connecting hole of the high-voltage switch cabinet, thereby locking the connection state of the cover body 1 and the high-voltage switch cabinet.

[0029] Further, when the first elastic arm 21 and the second elastic arm 22 are pressed by an external force to reduce the distance between the first elastic arm 21 and the second elastic arm 22, the elastic member 23 can be compressed, and the second elastic arm 22 and the connecting buckle 25 are vertically moved in the limiting slot 111, so that the connecting buckle 25 is withdrawn from the connecting hole of the high-voltage switch cabinet, thereby disassembling the cover body 1 and the high-voltage switch cabinet, and quickly unlocking the connection state of the cover body 1 and the high-voltage switch cabinet, facilitating the maintenance of the cover body 1 and the replacement of the lamp in the cover body 1.

[0030] When the maintenance and replacement of the cover body 1 are completed, the cover body 1 is assembled with the high-voltage switch cabinet, the connecting buckle 25 is aligned with the connecting hole of the high-voltage switch cabinet, the elastic member 23 can recover to the initial elongated state based on the elastic force of the elastic member 23, and simultaneously apply a pushing force to the first elastic arm 21 and the second elastic arm 22, which faces the outer side of the first elastic arm 21 and the second elastic arm 22, to push the second elastic arm 22 and the connecting buckle 25 to vertically move in the limiting slot 111, and the connecting buckle 25 is buckled into the connecting hole of the high-voltage switch cabinet, thereby quickly restoring the connection state of the cover body 1 and the high-voltage switch cabinet.

[0031] The quick disassembly mechanism 2 thus formed can realize the quick installation and disassembly of the cover body 1 and the high-voltage switch cabinet, and only needs to press the quick disassembly mechanism 2 to remove the cover body 1 during maintenance, without the need for power-off operation, so as to effectively improve the maintenance and replacement efficiency and ensure the stability and reliability of the lamp cover.

[0032] In combination Figure 2Further, the second surface of the mounting frame 12 is further provided with a sealing member 3 for cooperating with the high-voltage switch cabinet. The sealing member 3 is preferably made of a fluorosilicone rubber sealing pad, which has a temperature resistance range from -40°C to 300°C and can expand to form an airtight barrier at high temperature to effectively prevent high-temperature gas leakage, thereby effectively ensuring the connection stability of the cover body 1 and the high-voltage switch cabinet.

[0033] Embodiment Two In combination Figure 7 On the basis of Embodiment One, in order to ensure the stability and reliability of the lamp cover, the inner surface of the cover body 1 is further provided with a conductive film layer 14. Preferably, the conductive film layer is made of an ITO conductive film. The conductive film layer 14 is grounded through a wire, so that the conductive film layer 14 can eliminate the static electricity accumulation in the cover body 1, thereby improving the impact resistance of the lamp cover.

[0034] Embodiment Three In combination Figure 8 On the basis of Embodiment One or Embodiment Two, the tempered glass of the cover body light-transmitting member 13 is made of double-layer tempered glass, and a fire-retardant layer 15 is arranged between the two layers of tempered glass, for example, a fire gel is filled between the two layers of tempered glass, which can effectively improve the explosion resistance of the cover body light-transmitting member 13, thereby ensuring the stability and reliability of the lamp cover.

[0035] Embodiment Four In combination Figure 9 On the basis of Embodiment One, in order to ensure the stability and reliability of the lamp cover, the mounting frame 12 is further provided with a pressure relief channel 16. The pressure relief channel 16 can provide a pressure relief path before the internal pressure of the cover body 1 reaches a dangerous critical point, thereby avoiding the destruction of the lamp cover by force.

[0036] Preferably, the pressure relief channel 16 is arranged on both sides of the mounting frame 12, away from the front direction facing the operator, thereby improving the safety of the lamp cover.

[0037] In combination Figure 10 Further, the pressure relief channel 16 is formed with a plurality of baffles 161 irregularly inclined on both sides of the pressure relief channel 16. The high-pressure gas flow needs to hit the plurality of baffles 161 multiple times to change direction and consume kinetic energy, thereby reducing the pressure and speed and preventing the high-pressure gas flow from impacting the lamp cover.

[0038] At the same time, the plurality of baffles 161 are made of metal baffles, so that the high-temperature gas flow can be in full contact with the metal baffles to rapidly conduct and dissipate heat, thereby preventing the high-temperature gas flow from damaging the lamp cover.

[0039] Further, the metal sintered screen 162 is arranged at the outlet of the pressure relief channel 16. Preferably, the metal sintered screen 162 is sintered from micron-level stainless steel powder, so that the metal sintered screen 162 has uniform and continuous pores, which can effectively intercept fine hot particles in high-temperature and high-pressure gas, and prevent gas flow from being sprayed out.

[0040] Meanwhile, when the uncooled combustible gas passes through the pressure relief channel 16, the metal sintered screen 162 can also quench the combustible gas, prevent the flame from being sprayed out, and ensure the safety of the lampshade. The lampshade for the high-voltage switch cabinet provided by the present application sets the cover body light-transmitting piece 13 on the inner side of the mounting frame, so that the mounting frame 12 can disperse the edge stress of the cover body light-transmitting piece 13 and prevent the fragments generated by the fragmentation of the cover body light-transmitting piece 14 from splashing, thereby improving the impact resistance of the lampshade. Further, the quick dismounting mechanism 2 can unlock the connection state of the cover body 1 and the high-voltage switch cabinet under the action of external force, and also can restore the connection state based on the elastic force of itself, so that the quick dismounting of the lampshade can be realized, and the installation and maintenance are facilitated, thereby improving the stability and reliability of the lampshade.

[0042] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A flame-proof arc-proof light cover for a high-voltage switchgear, characterized in that, The cover body includes a mounting bottom frame, a first surface of the mounting bottom frame is provided with a hollow mounting frame, an inner side of the mounting frame is provided with a cover body light transmission piece, a second surface is provided with a sealing piece matched with the high-voltage switch cabinet, the quick dismounting mechanism is respectively arranged at four corners of the mounting bottom frame to connect the cover body and the high-voltage switch cabinet, the quick dismounting mechanism can unlock the connection state of the cover body and the high-voltage switch cabinet under the action of external force, and can also restore the connection state based on the elastic force of the quick dismounting mechanism.

2. The arc-proof lighting cover for a high-voltage switchgear according to claim 1, characterized by The mounting frame is configured as a box structure with hollow periphery, and the cover body light transmission piece includes first tempered glass, second tempered glass, third tempered glass and fourth tempered glass respectively arranged at the inner periphery of the mounting frame.

3. The anti-arc lighting cover for a high-voltage switchgear according to claim 2, characterized in that, The tempered glass, the second tempered glass, the third tempered glass and the fourth tempered glass are configured as a bridge type distribution structure.

4. The anti-arc lighting cover for a high-voltage switchgear according to claim 1, characterized by, The quick dismounting mechanism includes first and second elastic arms in V-shaped distribution, the inner sides of the first and second elastic arms are connected by an elastic piece, the ends of the first and second elastic arms are respectively formed with a fixed buckle and a connecting buckle, the fixed buckle is connected with the cover body, and the connecting buckle is connected with the high-voltage switch cabinet.

5. The arc-proof lighting cover for a high-voltage switchgear according to claim 4, characterized by The mounting bottom frame is provided with a limiting slot, and the second elastic arm and the connecting buckle extend out of the limiting slot.

6. The anti-arc lighting cover for a high-voltage switchgear according to claim 5, characterized by The high-voltage switch cabinet is provided with a connecting hole matched with the connecting buckle.

7. The anti-arc lighting cover for a high-voltage switchgear according to claim 4, characterized by The first and second elastic arms are in an integrated structure.

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