CN112421443A - Safety protection high voltage distribution cabinet - Google Patents
Safety protection high voltage distribution cabinet Download PDFInfo
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- CN112421443A CN112421443A CN202011158072.0A CN202011158072A CN112421443A CN 112421443 A CN112421443 A CN 112421443A CN 202011158072 A CN202011158072 A CN 202011158072A CN 112421443 A CN112421443 A CN 112421443A
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- cabinet body
- cooling
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- 238000009826 distribution Methods 0.000 title claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 110
- 238000009413 insulation Methods 0.000 claims description 47
- 238000001125 extrusion Methods 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000012774 insulation material Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 27
- 239000000112 cooling gas Substances 0.000 description 37
- 239000007789 gas Substances 0.000 description 30
- 241000883990 Flabellum Species 0.000 description 19
- 239000000428 dust Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/306—Accessories, e.g. windows
Abstract
The invention belongs to the technical field of high-voltage power distribution cabinets, and particularly relates to a safety protection high-voltage power distribution cabinet; comprises a cabinet body; a swinging cavity is formed in the other side wall of the cabinet body, and a plurality of fan blade plates are uniformly arranged in the swinging cavity at intervals in the vertical direction; the front end surfaces of the fan blade plates are rotatably arranged on the cavity wall of the swinging cavity through rotating columns, and rotating guide pipes are fixed on the rear end surfaces of the fan blade plates; the plurality of rotary guide pipes are rotatably arranged on the other cavity wall of the swinging cavity through the plurality of air guide pipes; a cooling cavity is formed in the fan blade plate, and an air guide micropore is formed in the inner cavity wall of the cooling cavity; rotating worm wheels are sleeved on the rotating columns and are meshed with rotating worms which are vertically and rotatably arranged; the bottom end of the rotating worm is connected with the output end of the driving motor; the air guide pipes are respectively communicated with the cooling cavities in the fan blade plates through the rotating guide pipes; the radiating effect of the internal safety and stability of cabinet is improved, and the effect of safety protection can be played to the components and parts of switch board inside simultaneously.
Description
Technical Field
The invention belongs to the technical field of high-voltage power distribution cabinets, and particularly relates to a safety protection high-voltage power distribution cabinet.
Background
The high-voltage power distribution cabinet is an electrical appliance product which is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like, and has a voltage grade of 3.6-550 kV, and mainly comprises a high-voltage circuit breaker, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like. The high-voltage switch manufacturing industry is an important component of the power transmission and transformation equipment manufacturing industry and plays a very important role in the whole power industry.
Chinese patent discloses a high voltage distribution cabinet, and patent application number is 2019108637612, including mounting panel, rotatable coupling in curb plate on the mounting panel and locating apron on the curb plate, be equipped with roof and bottom plate on the mounting panel, be equipped with the hasp on the apron, be equipped with the connecting plate on the mounting panel lateral wall, be equipped with first cavity in the connecting plate, be equipped with on the mounting panel with the communicating second of first cavity leads to the chamber, first cavity with the clear water is equipped with in the second cavity, the connecting plate with leave the clearance between the mounting panel, the roof top is equipped with the catch basin.
The heat on the distribution box can be absorbed, and the phenomenon that safety accidents are caused by overhigh temperature of the distribution box is avoided; the existing high-voltage power distribution cabinet is arranged in a region with large day-night temperature difference, and high-temperature gas outside the power distribution cabinet with higher temperature in the daytime can flow in the power distribution cabinet, so that the safe cooling of components inside the power distribution cabinet can be influenced; simultaneously when the night temperature lower, the outside cold air around the switch board is difficult to make full use of to the switch board in, carries out the operation of cooling down safely to its inside components and parts, and then influences the safety protection of switch board.
Disclosure of Invention
In order to make up for the defects of the prior art, the safety protection high-voltage power distribution cabinet provided by the invention is mainly used for solving the problems that when the conventional high-voltage power distribution cabinet is arranged in a region with large day-night temperature difference, the safe cooling of components in the power distribution cabinet is influenced when gas with higher temperature flows in the power distribution cabinet in the daytime, and the safe cooling operation of the components in the power distribution cabinet is difficult to be fully utilized by cold air at night, so that the safety protection of the power distribution cabinet is influenced.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a safety protection high-voltage power distribution cabinet, which comprises a cabinet body; a plurality of exhaust holes are formed in one side wall of the cabinet body, and a blade swinging mechanism is arranged on the other side wall of the cabinet body; a temperature sensor is arranged on the cabinet body; the blade swing mechanism comprises a blade plate, a rotating column, a rotating conduit, an air duct, a rotating worm wheel and a rotating worm; the other side wall of the cabinet body is provided with a swinging cavity, and a plurality of fan blade plates are uniformly arranged in the swinging cavity at intervals in the vertical direction; the front end surfaces of the fan blade plates are rotatably arranged on the cavity wall of the swinging cavity through rotating columns, and rotating guide pipes are fixed on the rear end surfaces of the fan blade plates; the plurality of rotary guide pipes are rotatably arranged on the other cavity wall of the swinging cavity through the plurality of air guide pipes; a cooling cavity is formed in the fan blade plate, and an air guide micropore is formed in the inner cavity wall of the cooling cavity; rotating worm wheels are sleeved on the rotating columns and are meshed with rotating worms which are vertically and rotatably arranged; the rotating worm is vertically and rotatably arranged in the swinging cavity, the bottom end of the rotating worm is connected with the output end of the driving motor, and the driving motor is installed inside the bottom end of the cabinet body; the outer end parts of the air guide pipes are communicated with an air outlet pipe of an air supply pump, the air supply pump is arranged outside the cabinet body, and the air supply pump supplies air to the cooling cavity intermittently through the air outlet pipe; the air guide pipes are respectively communicated with the cooling cavities in the fan blade plates through rotating guide pipes; an exhaust fan is arranged in the cabinet body and is positioned at the exhaust hole;
when the temperature sensor arranged on the cabinet body detects that the temperature of the external air flowing into the cabinet body is higher than the heat emitted by the components inside the cabinet body, the controller inside the cabinet body controls the driving motor to rotate, so that the output end of the driving motor can drive the rotating worm to rotate, the rotating worm can drive the rotating worm wheels to synchronously rotate, the rotating column can drive the fan blades to rotate to be in a vertical state and be attached into the swinging cavity, the rotating attachment of the fan blades can seal the cabinet body, then the air outlet pipe of the air supply pump intermittently supplies cold air to the air guide pipes, the cold air in the air outlet pipe can enter the cooling cavity through the rotating guide pipe, the cold air in the cooling cavity can cool the fan blades, and the cooling air inside the fan blades can enter the cabinet body through the air guide micropores, the device can cool the components in the sealed cabinet body, and the exhaust fan can discharge cold gas in the cabinet body to the periphery of the outside of the cabinet body through the exhaust holes, so that the cold gas generated in the cabinet body can circularly flow; when the temperature sensor detects that the external temperature of the cabinet body is lower, the controller controls the driving motor to rotate reversely, the reverse rotation of the rotating worm drives the rotating worm wheels to rotate reversely, the rotating worm drives the fan blades to swing downwards in an inclined manner through the rotating columns, so that the fan blades which are sealed and attached to the side face of the cabinet body can rotate and incline for a certain angle, a plurality of exhaust grooves are formed in the side wall of the cabinet body, meanwhile, the controller can control the inclination angles of the fan blades according to the temperature detected by the temperature sensor, further the width of the exhaust grooves can be adjusted, further the entering amount of cold air outside the cabinet body can be controlled, and meanwhile, when the exhaust fan works, the air guide holes and the formed exhaust grooves on the two sides of the cabinet body can suck the cold air outside the cabinet body into the cabinet body and can flow in the circulating manner of the cabinet body, and further the safe and stable heat dissipation effect inside the cabinet body can, meanwhile, the effect of safety protection on components in the power distribution cabinet can be achieved; effectively prevent because the air guide cavity has been seted up at the lateral wall mostly to current switch board for the produced heat of the inside components and parts of switch board can be taken away through gaseous flow, but with this kind of high voltage distribution cabinet setting in the great region of difference in temperature round the clock, the higher gas of temperature flows in the switch board on daytime, then can influence the safe cooling of the inside components and parts of switch board, then the cold air at night then is difficult to make full use of carries out the safe cooling operation to its inside components and parts in the switch board, and then influences the safety protection of switch board.
Preferably, a sealing disc is fixed inside the rotating guide pipe, and a gas guide hole is formed in the non-circle center position of the sealing disc; a joint plate is fixed at the end part of the air duct, and an exhaust groove is formed in the non-circle center position of the joint plate; the fit disc and the seal disc are rotationally fitted; the exhaust groove is aligned with the air guide hole in a rotating mode; when the cooling device works, when the rotating column drives the fan blade plate to rotate to a vertical state, the fan blade plate drives the rotating guide pipe to rotate, so that the air guide hole in the sealing disc in the rotating guide pipe is aligned with the exhaust groove in the attaching disc at the end part of the air guide pipe, and then cooling air in the air guide pipe enters the cooling cavity through the air guide hole and the exhaust groove, and the cooling operation can be carried out on the cooling cavity; when the flabellum board rotates and is the tilt state, rotate this moment the pipe and can drive air guide hole and exhaust hole rotation dislocation on the inside sealed dish for sealed dish can seal the air discharge duct on the laminating dish, and then does not need the cooling gas in the air guide to enter into the cooling chamber, does not need the controller to carry out frequent start-up to the air feed pump simultaneously and closes the operation, alright in order to carry out cooling operation to the flabellum board according to the rotation state of flabellum board.
Preferably, a heat insulation baffle is fixed in the cooling cavity, and the cooling cavity is divided into a flowing cavity and a heat insulation cavity by the heat insulation baffle; the rotating guide pipe is communicated with the flowing cavity, and the flowing cavity is positioned on the inner side wall of the fan blade plate; the heat insulation baffle is made of elastic heat insulation materials; when the cooling cabinet works, the cooling cavity can be divided into the flowing cavity and the heat insulation cavity by the heat insulation baffle arranged in the cooling cavity, the heat insulation baffle adopts elastic heat insulation materials, the heat insulation cavity can concentrate heat generated by the sealed fan blade plate by external heat into the heat insulation cavity, meanwhile, cooling gas filled in the rotating guide pipe can enter the flowing cavity, and the flowing cavity is positioned on the inner side wall of the fan blade plate, so that the cooling gas in the flowing cavity can quickly enter the sealed cabinet body through the gas guide micropores; the phenomenon that the internal cooling gas is stably raised due to the fact that the outer wall of the fan blade plate is heated by the outer wall of the cabinet body is effectively prevented, and the cooling effect of the cooling gas on the interior of the cabinet body is further influenced; when the fan blade plate rotates to be in an inclined state, the heat accumulated in the heat insulation cavity can be radiated by the external cold gas flowing on the surface of the fan blade plate.
Preferably, the upper end face and the lower end face of the fan blade plate are provided with sliding cavities, and elastic filter screens are inserted in the sliding cavities in a sliding mode; the upper end and the lower end of the elastic filter screen are respectively arranged in the adjacent fan blade plates in a sliding manner, and limiting stop strips are fixed at the upper end and the lower end of the elastic filter screen; the width of the limiting barrier strip is greater than that of the sliding cavity; when the cabinet is in operation, when the plurality of fan blades rotate synchronously and incline for a certain angle, the elastic filter screens arranged in the adjacent two fan blades in a sliding manner can generate stretching inclination along with the swinging of the fan blades, so that the inclined elastic filter screens can filter gas introduced into an exhaust groove formed between the adjacent fan blades, and the external cold air flowing through the exhaust groove is effectively prevented from being mixed with particle dust or particle sundries to enter the cabinet body, thereby affecting the safe and stable operation of components in the cabinet body, and meanwhile, cleaning personnel are required to clean dust collected in the cabinet body; the arranged limiting barrier strips can limit the elastic filter screen, so that the phenomenon that the elastic filter screen is separated from the blade plate due to overlarge swinging inclination angle of the blade plate is prevented, and the safe use of the elastic filter screen is influenced; when two adjacent flabellum boards rotate into vertical state, the elasticity filter screen can contract flabellum inboard inside, and then is convenient for reuse the elasticity filter screen, can play sealed effect to the gap between two adjacent flabellum boards when the elasticity filter screen produces the compression simultaneously, prevents effectively that when a plurality of flabellum boards rotate into vertical state, external hot gas enters into the internal phenomenon of cabinet.
Preferably, the limiting barrier strips which are symmetrically inserted in the cooling cavity in a sliding manner up and down are connected through springs, and the springs are movably arranged in the cooling cavity; during operation, when elastic filter net pulled out from the cooling chamber, elastic filter net can stimulate spacing blend stop for spacing blend stop in the cooling chamber can slide to the upper and lower both ends in cooling chamber, and then the spring of connecting between the spacing blend stop can play the effect of elastic tensioning pulling to elastic filter net, prevents effectively that when the flabellum board rotates vertical state, elastic filter net can not enter into the cooling chamber completely enough, and then influences the sealed effect of stable laminating of flabellum board at cabinet side wall.
Preferably, a plurality of sliding guide pipes are fixed on the inner cavity wall of the heat insulation cavity, and the interiors of the plurality of sliding guide pipes are connected with extrusion push rods in a sliding manner through springs; the outer end part of the extrusion push rod is extruded to the side wall of the heat insulation baffle in a sliding manner; the bottom ends of the sliding guide pipes are communicated into the flowing cavity through air guide hoses; when the cooling device works, when cooling gas is filled into the flowing cavity, the cooling gas in the flowing cavity can enter the sliding guide pipe through the gas guide hose, the cooling gas continuously filled into the sliding guide pipe can push the outer end part of the extrusion push rod to extrude and shake the heat insulation baffle, meanwhile, the extrusion push rod can stretch the spring in the sliding guide pipe, so that the heat insulation baffle can vibrate in the cooling cavity, the vibration of the heat insulation baffle in the cooling cavity can disturb the cooling gas in the flow guide cavity, and meanwhile, the extrusion force applied to the heat insulation baffle can push the cooling gas in the flowing cavity to be rapidly sprayed out through the gas guide micropores, so that the stable spraying and cooling operation of the fan blade plate on the cooling gas is improved; when the intracavity cooling gas that flows pauses to fill, the reaction force of spring drives down and extrudes the push rod and shrink to the slip pipe in for the extrusion push rod breaks away from the extrusion to thermal-insulated baffle, and the shrink of extrusion push rod simultaneously can compress the slip pipe internal cooling gas to the intracavity that flows through the air guide hose, and the extrusion push rod of being convenient for can extrude the operation of shaking to thermal-insulated baffle once more, improves the gaseous rapid cooling effect of water conservancy diversion intracavity cooling.
Preferably, a push rod is fixed at the outer end part of the extrusion push rod, and the outer end part of the push rod penetrates through the heat insulation baffle in a sliding and sealing manner; the outer end part of the ejector rod is in elastic contact with a spring movably arranged in the cooling cavity; the during operation, when the extrusion push rod slides and stretches out extrusion heat shield, the ejector pin of the outer tip of extrusion push rod can stretch out another lateral wall of heat shield, and ejector pin can produce the thrust to the spring simultaneously for the spring produces the bending, when the extrusion push rod drives the ejector pin and returns, the bounce force of spring can drive the elastic filter screen that contracts to the water conservancy diversion intracavity and produce the swing, and then increase the gaseous disturbance effect of water conservancy diversion intracavity cooling, further improve the internal surface of flabellum to the internal portion cooling operation of the cabinet after the sealing.
Preferably, the upper end face and the lower end face of the fan blade plate are provided with elastic conical strips, and the top ends of the elastic conical strips are in sliding fit with the two side faces of the elastic filter screen; during operation, when the elastic filter screen contracts into the cooling cavity under the pulling of the spring in the cooling cavity, the elastic conical strip attached to the outer wall of the elastic filter screen can scrape off the dust adhered to the outer wall of the elastic filter screen, so that the dust adhered to the outer wall of the elastic filter screen is effectively prevented from entering the flow guide cavity too much, and then the cooling gas filled in the flow guide cavity fills the dust into the cabinet body through the gas guide micropores, thereby affecting the safe use of electrical elements.
Preferably, a plurality of sawtooth grooves are formed in the top end of the elastic conical strip, and shifting strips are obliquely and elastically arranged in the sawtooth grooves; the plurality of the stirring strips are elastically inserted into the meshes of the elastic filter screen; the during operation, when the elasticity filter screen slides along elasticity toper strip lateral wall, the strip of stirring that elasticity toper strip top slope set up can correspond the mesh that inserts the elasticity filter screen, when the elasticity filter screen continues to shrink the cooling intracavity, stir the strip and can play the effect that elasticity was stirred to the elasticity filter screen for the elasticity filter screen can produce the shake, and then can vibrate the dust that self bonds and drop, improves the elasticity filter screen cleaning performance, prevents simultaneously that the elasticity filter screen from producing the phenomenon of jam.
Preferably, the inner side wall of the fan blade plate is made of a heat-conducting metal material; the section of the gas guide micropore is of a conical structure; when the cabinet is in work, the inner side wall of the fan blade plate is made of heat-conducting metal materials, so that cold gas gathered in the flow guide cavity can be quickly guided into the cabinet body, and meanwhile, the cabinet body can be quickly cooled; meanwhile, the air guide micropores are arranged to be of a conical structure, so that cooling air in the flow guide cavity can be sprayed into the cabinet body, the area of the cooling air diffused in the cabinet body is increased, and the effect of rapidly cooling the cabinet body in a sealing mode is improved.
Preferably, the two side cavity walls of the sliding cavity are provided with elastic wear-resistant layers, and the elastic wear-resistant bin is in sliding contact with the elastic filter screen; during operation, when the elastic filter screen is constantly in the cooling intracavity shrink when sliding, the elastic wear layer that sets up can reduce the sliding wear effect of elastic filter screen to the upper and lower chamber wall of cooling chamber, and it is great to prevent effectively that the chamber wall wearing and tearing are great about the cooling chamber, and then leads to the phenomenon that the cooling gas produces the leakage in the water conservancy diversion intracavity, and then influences the cooling operation of cooling gas to cabinet internal portion.
The invention has the following beneficial effects:
1. according to the invention, through the blade swinging mechanism arranged on the side wall of the cabinet body, the blade swinging mechanism can enable the plurality of blade plates to rotate and attach to seal the cabinet body, and meanwhile, the plurality of blade plates can rotate and incline for a certain angle, so that the side wall of the cabinet body forms a plurality of exhaust grooves.
2. According to the invention, through the arranged heat insulation baffle, the heat insulation baffle adopts an elastic heat insulation material, so that the heat insulation cavity can concentrate heat generated by the sealed fan blade plate receiving external heat into the heat insulation cavity, and the phenomenon that internal cooling gas is stably raised due to the fact that the outer wall of the fan blade plate receives the heat of the outer wall of the cabinet body is effectively prevented, and the cooling effect of the cooling gas on the interior of the cabinet body is further influenced.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a view showing the operation of the blade swing mechanism of the present invention;
FIG. 3 is a sectional view of the cabinet of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;
FIG. 5 is a cross-sectional view of a vane plate of the present invention;
in the figure: the cabinet comprises a cabinet body 1, an exhaust hole 11, a swing cavity 12, a blade swing mechanism 2, a fan blade plate 21, a cooling cavity 211, an air guide micropore 212, a flow cavity 213, a heat insulation cavity 214, a sliding cavity 215, a rotating column 22, a rotating guide pipe 23, an air guide pipe 24, a rotating worm wheel 25, a rotating worm 26, a sealing disc 3, an air guide hole 31, a bonding disc 4, an exhaust groove 41, a heat insulation baffle plate 5, an elastic filter screen 6, a limit stop strip 61, a sliding guide pipe 7, an extrusion push rod 8, an air guide hose 9, a push rod 10, an elastic conical strip 20 and a toggle strip 30.
Detailed Description
A safety protection high voltage distribution cabinet according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1 to 5, the safety protection high-voltage power distribution cabinet of the invention comprises a cabinet body 1; a plurality of exhaust holes 11 are formed in one side wall of the cabinet body 1, and a blade swinging mechanism 2 is arranged on the other side wall of the cabinet body 1; a temperature sensor is arranged on the cabinet body 1; the blade swing mechanism 2 comprises a blade plate 21, a rotating column 22, a rotating guide pipe 23, an air duct 24, a rotating worm wheel 25 and a rotating worm 26; the other side wall of the cabinet body 1 is provided with a swinging cavity 12, and a plurality of fan blade plates 21 are uniformly arranged in the swinging cavity 12 at intervals in the vertical direction; the front end surfaces of the fan blades 21 are rotatably arranged on the cavity wall of the swinging cavity 12 through rotating columns 22, and rotating guide pipes 23 are fixed on the rear end surfaces of the fan blades 21; the plurality of rotary conduits 23 are rotatably arranged on the other cavity wall of the swinging cavity 12 through a plurality of air ducts 24; a cooling cavity 211 is formed in the fan blade plate 21, and an inner cavity wall of the cooling cavity 211 is provided with air guide micro holes 212; a plurality of rotating worm wheels 25 are sleeved on the rotating columns 22, and the rotating worm wheels 25 are meshed with rotating worms 26 which are vertically and rotatably arranged; the rotating worm 26 is vertically and rotatably arranged in the swinging cavity 12, the bottom end of the rotating worm 26 is connected with the output end of the driving motor, and the driving motor is arranged inside the bottom end of the cabinet body 1; the outer end parts of the air guide pipes 24 are communicated with an air outlet pipe of an air supply pump, the air supply pump is arranged outside the cabinet body 1, and the air supply pump supplies air to the cooling cavity 211 intermittently through the air outlet pipe; the air ducts 24 are respectively communicated with the cooling cavity 211 inside the fan blade plate 21 through the rotating guide pipes 23; an exhaust fan is arranged in the cabinet body 1 and is positioned at the exhaust hole 11;
when the cabinet is in operation, when a temperature sensor arranged on the cabinet body 1 detects that the temperature of the external air flowing into the cabinet body 1 is higher than the heat dissipated by the components inside the cabinet body 1, at this time, a controller inside the cabinet body 1 controls the driving motor to rotate, so that the output end of the driving motor can drive the rotating worm 26 to rotate, the rotating worm 26 can drive the rotating worm wheels 25 to rotate synchronously, further the rotating column 22 can drive the fan blades 21 to rotate to be attached to the swing cavity 12 in a vertical state, further the rotating attachment of the fan blades 21 can seal the cabinet body 1, then the air outlet pipe of the air supply pump intermittently supplies cold air to the air guide pipes 24, the cold air in the air outlet pipe can enter the cooling cavity 211 through the rotating guide pipe 23, the cold air in the cooling cavity 211 can cool the fan blades 21, further the cooling air inside the fan blades 21 can enter the cabinet body 1 through the micropore air guide pipe 212, the temperature of the components inside the sealed cabinet body 1 can be reduced, and meanwhile, the exhaust fan can discharge cold gas in the cabinet body 1 to the periphery of the outside of the cabinet body 1 through the exhaust holes 11, so that the cold gas generated in the cabinet body 1 can circularly flow; when the temperature sensor detects that the external temperature of the cabinet body 1 is low, the controller controls the driving motor to rotate reversely, the reverse rotation of the rotating worm 26 drives the plurality of rotating worm wheels 25 to rotate reversely, the rotating worm 26 drives the plurality of fan blades 21 to swing obliquely downwards through the rotating column 22, so that the plurality of fan blades 21 which are sealed and attached to the side surface of the cabinet body 1 can rotate and incline for a certain angle, a plurality of exhaust grooves are formed on the side wall of the cabinet body 1, meanwhile, the controller can control the inclination angles of the plurality of fan blades 21 according to the temperature detected by the temperature sensor, further, the widths of the plurality of exhaust grooves can be adjusted, further, the entering amount of cold gas outside the cabinet body 1 can be controlled, and meanwhile, when the exhaust fan works, the cold gas outside the cabinet body can be pumped into the cabinet body 1 through the air guide holes 31 and the formed exhaust grooves on the two sides of the cabinet body 1 and can flow circularly in the cabinet, further, the effect of safe and stable heat dissipation inside the cabinet body 1 is improved, and meanwhile, the effect of safety protection on components inside the power distribution cabinet can be achieved; effectively prevent because the air guide cavity has been seted up at the lateral wall mostly to current switch board for the produced heat of the inside components and parts of switch board can be taken away through gaseous flow, but with this kind of high voltage distribution cabinet setting in the great region of difference in temperature round the clock, the higher gas of temperature flows in the switch board on daytime, then can influence the safe cooling of the inside components and parts of switch board, then the cold air at night then is difficult to make full use of carries out the safe cooling operation to its inside components and parts in the switch board, and then influences the safety protection of switch board.
As an embodiment of the present invention, the sealing disc 3 is fixed inside the rotating conduit 23, and the non-circular position of the sealing disc 3 is provided with an air vent 31; the end part of the air duct 24 is fixed with a joint disc 4, and the non-circle center position of the joint disc 4 is provided with an exhaust groove 41; the laminating plate 4 and the sealing plate 3 are rotationally laminated; the exhaust groove 41 is in rotational alignment with the air guide hole 31; when the cooling device works, when the rotating column 22 drives the fan blade plate 21 to rotate to the vertical state, the fan blade plate 21 drives the rotating guide pipe 23 to rotate, so that the air guide holes 31 in the sealing disc 3 in the rotating guide pipe 23 are aligned with the exhaust grooves 41 in the attaching disc 4 at the end part of the air guide pipe 24, and then cooling gas in the air guide pipe 24 enters the cooling cavity 211 through the air guide holes 31 and the exhaust grooves 41, so that the cooling operation can be carried out on the cooling cavity 211; when the flabellum 21 rotates and is the tilt state, rotate this moment and lead pipe 23 and can drive on the sealed dish 3 of inside air guide hole 31 and exhaust hole 11 and rotate the dislocation for sealed dish 3 can seal the exhaust duct 41 on the laminating dish 4, and then does not need the cooling gas in the air duct 24 to enter into cooling chamber 211, does not need the controller to carry out frequent start-up closing operation to the air feed pump simultaneously, alright according to the rotation state of flabellum 21, carry out cooling operation to flabellum 21.
As an embodiment of the present invention, a heat insulation baffle 5 is fixed in the cooling chamber 211, and the heat insulation baffle 5 divides the cooling chamber 211 into a flow chamber 213 and a heat insulation chamber 214; the rotating conduit 23 is communicated with the flow cavity 213, and the flow cavity 213 is positioned on the inner side wall of the fan blade plate 21; the heat insulation baffle 5 is made of elastic heat insulation materials; during operation, the cooling cavity 211 can be divided into a flow cavity 213 and a heat insulation cavity 214 by the heat insulation baffle 5 arranged in the cooling cavity 211, and the heat insulation baffle 5 is made of elastic heat insulation material, so that the heat generated by the sealed blade plate 21 due to external heat can be concentrated in the heat insulation cavity 214 by the heat insulation cavity 214, meanwhile, the cooling gas filled in the rotating conduit 23 can enter the flow cavity 213, and the cooling gas in the flow cavity 213 can rapidly enter the sealed cabinet body 1 through the gas guide micropores 212 because the flow cavity 213 is located on the inner side wall of the blade plate 21; the phenomenon that the internal cooling gas is stably raised due to the fact that the outer wall of the fan blade plate 21 is heated by the outer wall of the cabinet body 1 is effectively prevented, and the cooling effect of the cooling gas on the interior of the cabinet body 1 is further influenced; when the louver 21 rotates to be inclined, the external cold air flowing on the surface of the louver 21 can dissipate the heat accumulated in the heat insulation chamber 214.
As an embodiment of the present invention, the upper and lower end surfaces of the vane plate 21 are provided with a sliding cavity 215, and the sliding cavity 215 is slidably inserted with the elastic filter screen 6; the upper end and the lower end of the elastic filter screen 6 are respectively arranged in the adjacent fan blade plates 21 in a sliding manner, and the upper end and the lower end of the elastic filter screen 6 are fixed with limiting barrier strips 61; the width of the limit barrier 61 is greater than that of the sliding cavity 215; when the cabinet works, when the fan blade plates 21 rotate synchronously and incline for a certain angle, the elastic filter screens 6 arranged in the adjacent two fan blade plates 21 in a sliding manner can generate stretching inclination along with the swinging of the fan blade plates 21, so that the inclined elastic filter screens 6 can filter gas introduced into an exhaust groove formed between the adjacent fan blade plates 21, particle dust or particle sundries mixed in external cold air flowing through the exhaust groove are effectively prevented from entering the cabinet body 1, the safe and stable operation of components in the cabinet body 1 is further influenced, and meanwhile, cleaning personnel are required to clean dust collected in the cabinet body 1; the arranged limiting barrier 61 can limit the elastic filter screen 6, so that the phenomenon that the elastic filter screen 6 is separated from the fan blade plate 21 due to overlarge swinging inclination angle of the fan blade plate 21 and the safe use of the elastic filter screen 6 is influenced; when two adjacent flabellum boards 21 rotate into vertical state, inside elastic filter screen 6 can contract flabellum board 21, and then be convenient for reuse elastic filter screen 6, can play sealed effect to the gap between two adjacent flabellum boards 21 when elastic filter screen 6 produces the compression simultaneously, prevent effectively that when a plurality of flabellum boards 21 rotate into vertical state, external hot gas enters into the phenomenon in the cabinet body 1.
As an embodiment of the invention, the limiting barrier strips 61 which are symmetrically inserted in the cooling cavity 211 in a sliding manner up and down are connected through a spring, and the spring is movably arranged in the cooling cavity 211; during operation, when elastic filter screen 6 pulls out from cooling chamber 211, elastic filter screen 6 can stimulate spacing blend stop 61, make spacing blend stop 61 in cooling chamber 211 can slide to the upper and lower both ends of cooling chamber 211, and then the spring of being connected between the spacing blend stop 61 can play the effect of elasticity tensioning pulling to elastic filter screen 6, effectively prevent when flabellum board 21 rotates vertical state, elastic filter screen 6 can not enter into cooling chamber 211 completely, and then influence flabellum board 21 and stabilize the sealed effect of laminating at cabinet body 1 lateral wall.
As an embodiment of the present invention, a plurality of sliding conduits 7 are fixed on the inner cavity wall of the heat insulation cavity 214, and an extrusion push rod 8 is slidably connected inside each of the plurality of sliding conduits 7 through a spring; the outer end part of the extrusion push rod 8 is extruded to the side wall of the heat insulation baffle 5 in a sliding manner; the bottom ends of a plurality of the sliding conduits 7 are communicated into the flow chamber 213 through the air guide hose 9; during operation, when the flow cavity 213 is filled with cooling gas, the cooling gas in the flow cavity 213 enters the sliding guide pipe 7 through the air guide hose 9, the sliding guide pipe 7 is continuously filled with cooling gas to push the outer end of the extrusion push rod 8 to extrude and shake the heat insulation baffle 5, and the extrusion push rod 8 stretches the spring in the sliding guide pipe 7, so that the heat insulation baffle 5 can vibrate in the cooling cavity 211, the vibration of the heat insulation baffle 5 in the cooling cavity 211 can disturb the cooling gas in the flow guide cavity, and meanwhile, the extrusion force applied to the heat insulation baffle 5 can push the cooling gas in the flow cavity 213 to be rapidly sprayed out through the air guide micropores 212, thereby improving the stable spraying and cooling operation of the fan blade plate 21 on the cooling gas; when the cooling gas pauses to fill in flowing intracavity 213, the reaction force of spring drives down and extrudes push rod 8 and contracts to sliding guide pipe 7 for extrusion push rod 8 breaks away from the extrusion to thermal baffle 5, and the shrink of extrusion push rod 8 simultaneously can compress the cooling gas in sliding guide pipe 7 to flowing intracavity 213 through air guide hose 9, and the extrusion push rod 8 of being convenient for can extrude the operation of shaking to thermal baffle 5 once more, improves the gaseous quick cooling effect of water conservancy diversion intracavity cooling.
As an embodiment of the invention, the outer end part of the extrusion push rod 8 is fixed with a push rod 10, and the outer end part of the push rod 10 passes through the heat insulation baffle 5 in a sliding and sealing manner; the outer end part of the ejector pin 10 is in elastic contact with a spring movably arranged in the cooling cavity 211; the during operation, when extrusion push rod 8 slides and stretches out extrusion thermal baffle 5, another lateral wall of thermal baffle 5 can be stretched out to the top push rod 10 of the outer tip of extrusion push rod 8, top push rod 10 can produce the thrust to the spring simultaneously, make the spring produce crooked, when extrusion push rod 8 drives top push rod 10 and returns, the bounce force of spring can drive the elastic filter screen 6 that contracts to the water conservancy diversion intracavity and produce the swing, and then increase the gaseous disturbance effect of the intracavity cooling of water conservancy diversion, further improve the inside cooling operation of the cabinet body 1 after the sealing of leaf plate 21 internal surface.
As an embodiment of the present invention, the upper and lower end surfaces of the fan blade plate 21 are provided with elastic tapered strips 20, and the top ends of the elastic tapered strips 20 are slidably attached to the two side surfaces of the elastic filter screen 6; during operation, when the elastic filter screen 6 contracts into the cooling cavity 211 under the pulling of the spring in the cooling cavity 211, the elastic conical strip 20 attached to the outer wall of the elastic filter screen 6 can scrape off the dust adhered to the outer wall of the elastic filter screen 6, so that the dust adhered to the outer wall of the elastic filter screen 6 is effectively prevented from entering the flow guide cavity too much, and then the cooling gas filled in the flow guide cavity fills the dust into the cabinet body 1 through the gas guide micropores 212, thereby affecting the safe use of electrical elements.
As an embodiment of the present invention, a plurality of sawtooth grooves are formed at the top end of the elastic conical strip 20, and a toggle strip 30 is elastically arranged in each of the sawtooth grooves in an inclined manner; the plurality of the toggle strips 30 are elastically inserted into the meshes of the elastic filter screen 6; the during operation, when elastic filter screen 6 slides along the 20 lateral walls of elasticity toper strip, the strip 30 of stirring that the slope of the 20 top ends of elasticity toper strip set up can correspond the mesh that inserts elastic filter screen 6, when elastic filter screen 6 continues to shrink in cooling chamber 211, stir the strip 30 and can play the effect that elasticity was stirred to elastic filter screen 6, make elastic filter screen 6 can produce the shake, and then can vibrate the dust that bonds self and drop, improve the clearance effect to elastic filter screen 6, prevent simultaneously that elastic filter screen 6 from producing the phenomenon of jam.
As an embodiment of the present invention, the inner side wall of the louver board 21 is made of a heat conducting metal material; the section of the gas guide micropore 212 is of a conical structure; when the cabinet is in work, the inner side wall of the fan blade plate 21 is made of heat-conducting metal materials, so that cold gas gathered in the flow guide cavity can be quickly guided into the cabinet body 1, and meanwhile, the cabinet body 1 can be quickly cooled; meanwhile, the air guide micropores 212 are arranged to be of a conical structure, so that cooling gas in the flow guide cavity can be sprayed into the cabinet body 1, the diffusion area of the cooling gas in the cabinet body 1 is increased, and the rapid cooling effect of the cabinet body 1 during sealing is improved.
As an embodiment of the present invention, the two side chamber walls of the sliding chamber 215 are provided with elastic wear-resistant layers, and the elastic wear-resistant chamber is in sliding contact with the elastic filter screen 6; during operation, when elastic filter screen 6 constantly contracts in cooling chamber 211 and slides, the elasticity wearing layer that sets up can reduce elastic filter screen 6 to the sliding wear effect on the upper and lower chamber wall of cooling chamber 211, and it is great to prevent effectively that the wearing and tearing of the upper and lower chamber wall of cooling chamber 211 from, and then leads to the phenomenon that the interior cooling gas of water conservancy diversion intracavity produced the leakage, and then influences the cooling gas and to the inside cooling operation that cools down of the cabinet body 1.
The specific working process is as follows:
when the cabinet is in operation, when a temperature sensor arranged on the cabinet body 1 detects that the temperature of the external air flowing into the cabinet body 1 is higher than the heat dissipated by the components inside the cabinet body 1, at this time, a controller inside the cabinet body 1 controls the driving motor to rotate, so that the output end of the driving motor can drive the rotating worm 26 to rotate, the rotating worm 26 can drive the rotating worm wheels 25 to rotate synchronously, further the rotating column 22 can drive the fan blades 21 to rotate to be attached to the swing cavity 12 in a vertical state, further the rotating attachment of the fan blades 21 can seal the cabinet body 1, then the air outlet pipe of the air supply pump intermittently supplies cold air to the air guide pipes 24, the cold air in the air outlet pipe can enter the cooling cavity 211 through the rotating guide pipe 23, the cold air in the cooling cavity 211 can cool the fan blades 21, further the cooling air inside the fan blades 21 can enter the cabinet body 1 through the micropore air guide pipe 212, the temperature of the components inside the sealed cabinet body 1 can be reduced, and meanwhile, the exhaust fan can discharge cold gas in the cabinet body 1 to the periphery of the outside of the cabinet body 1 through the exhaust holes 11, so that the cold gas generated in the cabinet body 1 can circularly flow; when the temperature sensor detects that the external temperature of the cabinet body 1 is low, the controller controls the driving motor to rotate reversely, the reverse rotation of the rotating worm 26 drives the plurality of rotating worm wheels 25 to rotate reversely, the rotating worm 26 drives the plurality of fan blades 21 to swing obliquely downwards through the rotating column 22, so that the plurality of fan blades 21 which are sealed and attached to the side surface of the cabinet body 1 can rotate and incline for a certain angle, a plurality of exhaust grooves are formed on the side wall of the cabinet body 1, meanwhile, the controller can control the inclination angles of the plurality of fan blades 21 according to the temperature detected by the temperature sensor, further, the widths of the plurality of exhaust grooves can be adjusted, further, the entering amount of cold gas outside the cabinet body 1 can be controlled, and meanwhile, when the exhaust fan works, the cold gas outside the cabinet body can be pumped into the cabinet body 1 through the air guide holes 31 and the formed exhaust grooves on the two sides of the cabinet body 1 and can flow circularly in the cabinet, thereby improving the safe and stable heat dissipation effect inside the cabinet body 1.
In the description of the present invention, it is to be understood that the terms "center", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (11)
1. A safety protection high-voltage power distribution cabinet comprises a cabinet body (1); the method is characterized in that: a plurality of exhaust holes (11) are formed in one side wall of the cabinet body (1), and a blade swinging mechanism (2) is arranged on the other side wall of the cabinet body (1); a temperature sensor is arranged on the cabinet body (1); the blade swing mechanism (2) comprises a blade plate (21), a rotating column (22), a rotating guide pipe (23), an air guide pipe (24), a rotating worm wheel (25) and a rotating worm (26); the other side wall of the cabinet body (1) is provided with a swinging cavity (12), and a plurality of fan blade plates (21) are uniformly arranged in the swinging cavity (12) at intervals in the vertical direction; the front end surfaces of the fan blade plates (21) are rotatably arranged on the cavity wall of the swinging cavity (12) through rotating columns (22), and rotating guide pipes (23) are fixed on the rear end surfaces of the fan blade plates (21); the plurality of rotary conduits (23) are rotatably arranged on the other cavity wall of the swinging cavity (12) through a plurality of air ducts (24); a cooling cavity (211) is formed in the fan blade plate (21), and air guide micropores (212) are formed in the inner cavity wall of the cooling cavity (211); rotating worm wheels (25) are sleeved on the rotating columns (22), and the rotating worm wheels (25) are meshed with rotating worms (26) which are vertically and rotatably arranged; the rotating worm (26) is vertically and rotatably arranged in the swinging cavity (12), the bottom end of the rotating worm (26) is connected with the output end of a driving motor, and the driving motor is arranged in the bottom end of the cabinet body (1); the outer end parts of the air guide pipes (24) are communicated with an air outlet pipe of an air supply pump, the air supply pump is arranged outside the cabinet body (1), and the air supply pump supplies air to the cooling cavity (211) intermittently through the air outlet pipe; the air guide pipes (24) are respectively communicated with the cooling cavity (211) in the fan blade plate (21) through the rotating guide pipes (23); the cabinet body (1) is internally provided with an exhaust fan, and the exhaust fan is positioned at the exhaust hole (11).
2. The safety protection high-voltage power distribution cabinet according to claim 1, characterized in that: a sealing disc (3) is fixed inside the rotating guide pipe (23), and an air guide hole (31) is formed in the non-circle center position of the sealing disc (3); the end part of the air duct (24) is fixed with a joint disc (4), and the non-circle center position of the joint disc (4) is provided with an exhaust groove (41); the laminating plate (4) and the sealing plate (3) are rotationally laminated; the exhaust grooves (41) are rotationally aligned with the air guide holes (31).
3. A safety protection high voltage power distribution cabinet according to claim 2, characterized in that: a heat insulation baffle (5) is fixed in the cooling cavity (211), and the cooling cavity (211) is divided into a flow cavity (213) and a heat insulation cavity (214) by the heat insulation baffle (5); the rotating conduit (23) is communicated with the flow cavity (213), and the flow cavity (213) is positioned on the inner side wall of the fan blade plate (21); the heat insulation baffle (5) is made of elastic heat insulation materials.
4. A safety protection high voltage power distribution cabinet according to claim 3, characterized in that: the upper end face and the lower end face of the fan blade plate (21) are provided with sliding cavities (215), and elastic filter screens (6) are inserted in the sliding cavities (215) in a sliding mode; the upper end and the lower end of the elastic filter screen (6) are respectively arranged in the adjacent fan blade plates (21) in a sliding manner, and limiting stop strips (61) are fixed at the upper end and the lower end of the elastic filter screen (6); the width of the limiting barrier strip (61) is larger than that of the sliding cavity (215).
5. A safety protection high voltage power distribution cabinet according to claim 4, characterized in that: the limiting barrier strips (61) which are symmetrically inserted in the cooling cavity (211) in a sliding manner up and down are connected through springs, and the springs are movably arranged in the cooling cavity (211).
6. A safety protection high voltage power distribution cabinet according to claim 5, characterized in that: a plurality of sliding guide pipes (7) are fixed on the inner cavity wall of the heat insulation cavity (214), and extrusion push rods (8) are connected inside the sliding guide pipes (7) in a sliding manner through springs; the outer end part of the extrusion push rod (8) is extruded to the side wall of the heat insulation baffle plate (5) in a sliding manner; the bottom ends of a plurality of the sliding guide pipes (7) are communicated with the flowing cavity (213) through an air guide hose (9).
7. A safety protection high voltage power distribution cabinet according to claim 6, characterized in that: a push rod (10) is fixed at the outer end part of the extrusion push rod (8), and the outer end part of the push rod (10) penetrates through the heat insulation baffle (5) in a sliding and sealing manner; the outer end part of the ejector rod (10) is in elastic contact with a spring movably arranged in the cooling cavity (211).
8. The safety protection high-voltage distribution cabinet according to claim 7, characterized in that: the upper end face and the lower end face of the fan blade plate (21) are provided with elastic conical strips (20), and the top ends of the elastic conical strips (20) are attached to the two side faces of the elastic filter screen (6) in a sliding mode.
9. The safety protection high-voltage distribution cabinet according to claim 8, characterized in that: a plurality of sawtooth grooves are formed in the top end of the elastic conical strip (20), and a toggle strip (30) is obliquely and elastically arranged in each sawtooth groove; the plurality of the stirring strips (30) are elastically inserted into meshes of the elastic filter screen (6).
10. A safety protection high voltage power distribution cabinet according to claim 9, characterized in that: the inner side wall of the fan blade plate (21) is made of heat-conducting metal materials; the section of the gas guide micropore (212) is of a conical structure.
11. A safety protection high voltage power distribution cabinet according to claim 10, characterized in that: and elastic wear-resistant layers are arranged on the wall of the two side cavities of the sliding cavity (215), and the elastic wear-resistant bin is in sliding contact with the elastic filter screen (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158072.0A CN112421443A (en) | 2020-10-26 | 2020-10-26 | Safety protection high voltage distribution cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011158072.0A CN112421443A (en) | 2020-10-26 | 2020-10-26 | Safety protection high voltage distribution cabinet |
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| CN112421443A true CN112421443A (en) | 2021-02-26 |
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| CN202011158072.0A Pending CN112421443A (en) | 2020-10-26 | 2020-10-26 | Safety protection high voltage distribution cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421442A (en) * | 2020-10-26 | 2021-02-26 | 朱纪昀 | Safety protection method for high-voltage power distribution cabinet |
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