CN111668714B

CN111668714B - Power distribution cabinet

Info

Publication number: CN111668714B
Application number: CN202010652530.XA
Authority: CN
Inventors: 王振宇
Original assignee: Shaanxi Yuao Electric Appliance Co ltd
Current assignee: Shaanxi Yuao Electric Appliance Co ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2022-04-01
Anticipated expiration: 2040-07-08
Also published as: CN111668714A

Abstract

The application relates to a power distribution cabinet, which comprises a power distribution cabinet, wherein the upper part and the lower part of the power distribution cabinet are respectively provided with a plurality of air outlets and air inlets, the air outlets and the air inlets are respectively provided with a first ventilation assembly, the first ventilation assembly comprises a first induced draft plate, induced air plate two and apron, the apron is not totally covered the air outlet and is gone into the wind gap, induced air plate one and induced air plate two's three adjacent border are equallyd divide and are do not had connecting plate one and connecting plate two towards the homonymy shaping of buckling, connecting plate one and connecting plate two's face all are U form and both U form opening opposite direction, induced air plate one is located connecting plate two inboards, connecting plate one and connecting plate two equal fixed connection in the opening border of air outlet or income wind gap, the bottom of switch board is provided with ventilation assembly two that is used for adjusting the wind direction, ventilation assembly two's income wind end communicates in the air outlet that is located a plurality of induced air plate two and connecting plate two of switch board bottom. The application has the effect that the heat dispersion is relatively better.

Description

Power distribution cabinet

Technical Field

The application relates to the field of power distribution cabinets, in particular to a power distribution cabinet.

Background

The distribution cabinet is a final-stage device of a distribution system. The power distribution cabinet is a general name of a motor control center. The switch board uses in the occasion that the load is more dispersed, the return circuit is less, and the switch board of current correlation technique is mostly inconvenient for remove, often all is fixed design, because its size is comparatively huge, and weight is heavier, generally all need reach the purpose of displacement through hoisting machine, and it is very inconvenient to transport the field, has consumed a large amount of manpower and materials and time, can't satisfy installation and use of field to a large amount of switch boards.

In order to solve the technical problems, a chinese patent with an authorization publication number CN108462061B in the related art discloses a power distribution cabinet convenient to move, which has the technical key points that: a movable base is fixedly installed at the bottom of the power distribution cabinet body, supporting transverse plates are fixedly connected to the bottoms of two sides of the movable base, a lifting groove is formed in the middle of the bottom of the movable base, an air cylinder is fixedly connected to the inner wall of the top of the lifting groove, wheel grooves are formed in four corners of the bottom of the movable base respectively, movable wheels are arranged inside the wheel grooves, rolling rings are sleeved outside the movable wheels, supporting rods are fixedly connected to the tops of the rolling rings, fixed columns are fixedly connected to the tops of the supporting rods, sliding rods are welded inside the fixed columns, two ends of the sliding rods respectively penetrate through two sides of the fixed columns and extend to the outside of the fixed columns, supporting grooves mutually communicated with the wheel grooves are formed in the movable base corresponding to one ends of the sliding rods, close to the power distribution cabinet body, penetrate through the supporting grooves and extend to the inside of the supporting rods, one ends of the sliding rods, far away from the power distribution cabinet body, penetrate through the movable base and extend to the outside of the cylindrical blocks, the position that the removal base corresponds the slide bar is seted up rather than the complex groove of passing through, both sides all are provided with rotary device around switch board body one side is kept away from to the cylinder piece, rotary device's inside is equipped with the rotary rod, be located the top and the equal fixedly connected with head rod in bottom of two relative one sides of rotary rod of homonymy, two head rods that are located the homonymy pass through second connecting rod fixed connection, the second connecting rod is close to one side fixedly connected with inserted block of switch board body, remove the base both sides and be located the equal fixedly connected with fixed block in both sides around the cylinder piece, the fixed block is kept away from switch board body one side and is corresponded the position of inserted block and from last to having seted up first jack and the second jack that uses with the inserted block cooperation down in proper order, support diaphragm top and the fixedly connected with supporting shoe that corresponds the cylinder piece.

With respect to the related art among the above, the inventors consider that there is a drawback that the heat dissipation performance is poor.

Disclosure of Invention

The application provides a switch board adopts following technical scheme:

a power distribution cabinet comprises a power distribution cabinet, wherein the upper portion and the lower portion of the power distribution cabinet are respectively provided with a plurality of air outlets and an air inlet, the air outlets and the air inlet are respectively provided with a first ventilation assembly, the first ventilation assembly comprises a first air induction plate, a second air induction plate and a cover plate covering the air outlets or the air inlet, the cover plate does not completely cover the air outlets and the air inlet, three adjacent edges of the first air induction plate and the second air induction plate are respectively bent towards the same side to form a first connecting plate and a second connecting plate, the surfaces of the first connecting plate and the second connecting plate are U-shaped, the U-shaped openings of the first connecting plate and the second connecting plate are opposite in direction, the first air induction plate is positioned inside the second connecting plate, one side edge of the first connecting plate far away from the first air induction plate and one side edge of the second connecting plate far away from the second air induction plate are fixedly connected to the opening edge of the air outlets or the air inlet, and the bottom of the power distribution cabinet is provided with a second ventilation assembly for adjusting, and the air inlet end of the second ventilation assembly is communicated with air outlets of the second air guide plates and the second connecting plate which are positioned at the bottom of the power distribution cabinet.

By adopting the technical scheme, when the air distribution cabinet is used, the air temperature can be raised due to heat generated by a power distribution element in the power distribution cabinet, hot air can be gathered at the upper part of the power distribution cabinet and is discharged through air channels formed between the first air guide plate and the second air guide plate as well as between the cover plate and the first connecting plate and the second connecting plate, and certain negative pressure can be formed, so that cold air at the lower part of the outside can enter the second ventilation assembly through the air channels formed between the first air guide plate and the second air guide plate as well as between the cover plate and between the first connecting plate and the second connecting plate, and the wind direction can face to the position with more heat generating elements through the two ventilation assemblies according to the requirements, the heat dissipation and ventilation effects are optimized, and the negative pressure is balanced; when using simultaneously, the extended path in wind channel that forms between induced air board one, induced air board two, apron, connecting plate one and the connecting plate two is the U form, can effectually slow down the speed that the air flows out and make the direction of exhaust air be so fixed to the vortex that flows about the inside formation of switch board optimizes the heat dissipation ventilation effect, and can do radiating fin through between induced air board one and induced air board two and the apron and connecting plate one and connecting plate two and use, further optimizes the result of use.

Preferably, the second ventilation assembly comprises a ventilation box with an upper opening structure and a fan arranged in the ventilation box, an adjusting piece used for adjusting the wind direction is arranged at the upper opening of the ventilation box, and the ventilation box is communicated with a plurality of air outlets located at the second induced draft plates and the second connecting plate on the lower portion of the power distribution cabinet.

Through adopting above-mentioned technical scheme, when doing the ventilation cooling to the switch board, the fan can further increase the inside negative pressure of switch board and inhale the cold air of the low department of outside through the ventilation subassembly one of a plurality of inlet openings department to balanced negative pressure and effectual increase get into the inside amount of wind of switch board, the air that gets into to the ventilation case passes through regulating part regulation direction back and then discharges inside the switch board, in order to do the ventilation cooling.

Preferably, encircle the ventilation case be provided with a plurality of rather than the ventilation pipe of intercommunication, the ventilation pipe includes rather than the income tuber pipe and the bellows that communicate, the both ends of bellows communicate respectively in the air outlet and the income tuber pipe that lie in the induced air board two and the connecting plate two of switch board lower part and keep away from the one end of ventilation case.

Through adopting above-mentioned technical scheme, the ventilation pipe can be with the leading-in to ventilation case of the air that is located the induced air board two of switch board lower part and the air outlet department of connecting plate two, simultaneously when using and installing, can do the angle and the altitude mixture control of adaptability through the bellows to reduce because of machining error leads to the unable intercommunication of ventilation case to be located the induced air board two of switch board bottom and the possibility of connecting plate two air outlets, optimize the result of use.

Preferably, the regulating part is including dismantling the ventilating board of connecting in ventilating case opening border and laminating in the regulating plate of ventilating board, the ventilating board has been seted up a plurality of ventilation holes that encircle its central setting, the regulating plate rotates the opening border of connecting in the ventilating case, a plurality of regulation punch combination have been seted up to the regulating plate, it includes regulation hole one and regulation hole two to adjust the punch combination, regulation hole one and regulation hole two all can communicate in the ventilation hole, regulation hole one and regulation hole two's opening border difference fixedly connected with adjusts box one and adjusts box two, it is side opening and under shed structure and both under shed and communicates in regulation hole one and regulation hole two respectively to adjust box one and regulation box two, the side opening direction of adjusting box one is on a parallel with the tangential of regulating plate, and is a plurality of the side opening orientation of adjusting box two is with one side.

By adopting the technical scheme, when the air-cooling type power distribution cabinet is used, air is introduced from the ventilation holes, when the whole inside of the power distribution cabinet needs to be ventilated and cooled, the first adjusting hole is communicated with the ventilation holes by rotating the adjusting plate, and the air is guided by the first adjusting box after passing through the first adjusting hole, so that the air flow discharged into the power distribution cabinet can form eddy current, and a relatively good ventilation and cooling effect can be achieved on a power distribution module inside the power distribution cabinet; if need do ventilation cooling to the more position of a certain distribution module in the switch board, the accessible rotates the regulating plate and makes two of regulating holes communicate in the ventilation hole, makes the opening direction of regulating box two towards the more position of distribution module simultaneously, can make two of air self-interacting box when discharging, can flow towards the more position of distribution module to can concentrate and do ventilation cooling to the more position of distribution module, make ventilation cooling's effect better relatively.

Preferably, a plurality of guide plates parallel to the side opening direction of the second adjusting box are fixedly connected in the second adjusting box.

Through adopting above-mentioned technical scheme, can make its opening direction of orientation that exhaust air can be concentrated more in the regulating box two discharge, further optimize local ventilation radiating effect.

Preferably, the fan is located above the air inlet end of the ventilation box.

Through adopting above-mentioned technical scheme, reduce the fan operation with the leading-in influence of outside air to the ventilation case.

Preferably, the cover plate is detachably connected to the opening edge of the air outlet or the air inlet, and at least one flame-retardant piece is clamped between the cover plate and the second air guide plate.

Through adopting above-mentioned technical scheme, when the conflagration breaing out, it is inside to reduce outside firework to pass through the air outlet and enter into the wind gap and enter into the switch board for the distribution module burning leads to the probability that bigger conflagration takes place.

Preferably, the flame retardant member is an expanded graphite block and is provided with at least one first through hole for air to pass through.

Through adopting above-mentioned technical scheme, when normal use, the air circulates from through-hole one, and when the conflagration breaing out, fire-retardant piece can expand rapidly, blocks up the wind channel between apron and the induced air board two to reduce the possibility that outside firework got into, the apron can be dismantled simultaneously and connect in the air outlet or go into the opening border in wind gap, can be when needing to change fire-retardant piece, and the accessible is torn down the apron and is done the change to fire-retardant piece.

Preferably, the cover plate is detachably connected to the opening edge of the air outlet or the air inlet, and at least one dust filter is clamped between the cover plate and the second air guide plate.

Through adopting above-mentioned technical scheme, do the filtration to the air that circulates, reduce the inside dust of switch board etc..

Preferably, the dust filter is an activated carbon fiber block and is provided with a plurality of dust filter holes capable of allowing air to circulate, and the extending path of the dust filter holes is spirally arranged.

Through adopting above-mentioned technical scheme, when using, the air is from straining the downthehole circulation of dirt to adsorb dust etc. through straining dirt spare, the effect that the dirt was adsorbed to the effectual optimization of dirt hole ability of straining of spiral setting.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the air distribution cabinet is used, the air temperature can be raised due to heat generated by a power distribution element in the power distribution cabinet, hot air can gather at the upper part of the power distribution cabinet, and is discharged through air channels formed between the first air guide plate and the second air guide plate as well as between the first connecting plate and the second connecting plate, and certain negative pressure can be formed, so that cold air at the lower part of the outside can enter the second ventilation assembly through the air channels formed between the first air guide plate and the second air guide plate as well as between the first connecting plate and the second connecting plate as well as between the first air guide plate and the second air guide plate as well as between the second connecting plate, and the wind direction can face to the position with more heat generating elements as required through the two ventilation assemblies, thereby optimizing the heat dissipation and ventilation effects and balancing the negative pressure; when using simultaneously, the extended path in wind channel that forms between induced air board one, induced air board two, apron, connecting plate one and the connecting plate two is the U form, can effectually slow down the speed that the air flows out and make the direction of exhaust air be so fixed to the vortex that flows about the inside formation of switch board optimizes the heat dissipation ventilation effect, and can do radiating fin through between induced air board one and induced air board two and the apron and connecting plate one and connecting plate two and use, further optimizes the result of use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is an exploded view of a portion of the structure of an embodiment of the present application.

FIG. 3 is a cross-sectional view of an adjustment plate according to an embodiment of the present application.

Description of reference numerals: 1. a power distribution cabinet; 11. an air outlet; 12. an air inlet; 13. a cabinet body; 14. a cabinet door; 2. a first ventilation component; 21. a first induced draft plate; 211. a first connecting plate; 22. a second induced draft plate; 221. a second connecting plate; 23. a cover plate; 3. a second ventilation component; 30. a vent pipe; 301. an air inlet pipe; 302. a bellows; 31. a ventilation box; 32. a fan; 33. an adjustment member; 331. a ventilation board; 3311. a first fixing plate; 332. an adjusting plate; 3321. a second fixing plate; 333. a vent hole; 34. adjusting the group of holes; 341. a first adjusting hole; 342. a second adjusting hole; 343. a first adjusting box; 344. a second adjusting box; 345. a guide plate; 4. a flame retardant member; 41. a first through hole; 5. a dust filtration member; 51. and (4) dust filtering holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a power distribution cabinet. Referring to fig. 1 and 2, including switch board 1, switch board 1 includes the cabinet body 13 that is side open structure and hinges the cabinet door 14 that hinges at the vertical side edge of cabinet body 13 side opening. The upper portion and the lower portion of the cabinet body 13 are respectively provided with a plurality of air outlets 11 and air inlets 12 which are located at the same height, and the inner side edges of the air outlets 11 and the air inlets 12 are respectively provided with a first ventilation assembly 2.

The first ventilation assembly 2 comprises a first air guide plate 21, a second air guide plate 22 and a cover plate 23 covering the air outlet 11 or the air inlet 12, and different cover plates 23 cover part of the air outlet 11 or the air inlet 12. Three adjacent side edges of the first induced draft plate 21 are respectively bent towards one side of the outer part of the cabinet body 13 to form a first connecting plate 211, and the surface of the first connecting plate 211 is U-shaped; the second air inducing plate 22 is located on the inner side of the U-shaped first connecting plate 211, the three adjacent side edges of the second air inducing plate 22 are respectively bent towards one side of the outer portion of the cabinet body 13 to form a second connecting plate 221, the plate surface of the second connecting plate 221 is U-shaped, and the U-shaped openings of the first connecting plate 211 and the second connecting plate 221 are opposite in direction. So that a zigzag air duct is formed between the first air guide plate 21, the second air guide plate 22 and the cover plate 23.

Referring to fig. 1 and 2, the U-shaped openings of the second connecting plates 221 located above and below are respectively upward and downward. The edge of one side of the first connecting plate 211 and the second connecting plate 221 facing the outside of the cabinet 13 is fixedly connected to the opening edge of the air outlet 11 or the air inlet 12. The bottom of the power distribution cabinet 1 is provided with a second ventilation assembly 3 for adjusting the wind direction, and the wind inlet end of the second ventilation assembly 3 is communicated with the air outlets of the second air guide plates 22 and the second connecting plates 221 which are positioned at the bottom of the cabinet body 13.

When the air distribution cabinet is used, the air temperature can be raised due to heat generated by a power distribution element in the power distribution cabinet 1, hot air can be gathered at the upper part of the power distribution cabinet 1 and is discharged through air ducts formed between the first induced draft plate 21 and the second induced draft plate 22 as well as the cover plate 23 and between the first connecting plate 211 and the second connecting plate 221, and certain negative pressure can be formed, so that cold air at the lower part of the outside can enter the second ventilation assembly 3 through the air ducts formed between the first induced draft plate 21 and the second induced draft plate 22 as well as the cover plate 23 and between the first connecting plate 211 and the second connecting plate 221, and the air direction can face to the position of a heat generating element according to needs through the second ventilation assembly 3, the heat dissipation and ventilation effects are optimized, and the negative pressure is balanced; when using simultaneously, the extension route in wind channel that forms between induced air plate one 21, induced air plate two 22, apron 23, connecting plate one 211 and the connecting plate two 221 is the U-shaped, can effectually slow down the speed that the air flows out and make the direction of exhaust air be definite, so that the vortex that flows about forming in switch board 1 inside, optimize the heat dissipation ventilation effect, and can do radiating fin through between induced air plate one 21 and induced air plate two 22 and the apron 23 and connecting plate one 211 and the connecting plate two 221 and use, further optimize the result of use.

Referring to fig. 1 and 2, the second ventilation assembly 3 includes a ventilation box 31 having an upper opening structure and a fan 32 disposed in the ventilation box 31, the ventilation box 31 is cylindrical as a whole, and an air outlet end of the fan 32 faces an opening of the ventilation box 31. An adjusting piece 33 for adjusting the wind direction is arranged at the upper opening of the ventilation box 31, and the ventilation box 31 is communicated with a plurality of air outlets of the second induced draft plates 22 and the second connecting plate 221 which are positioned at the lower part of the power distribution cabinet 1. The fan 32 is located above the air inlet end of the ventilation box 31. To reduce the influence of the fan 32 on the introduction of air into the ventilation box 31.

So that when doing ventilation cooling to switch board 1, fan 32 can further increase the inside negative pressure of switch board 1 and inhale the cold air of outside low department through ventilation assembly 2 of a plurality of income wind gaps 12 departments to balanced negative pressure and the inside amount of wind of effectual increase entering switch board 1, the air that enters into to ventilation case 31 passes through regulating part 33 and adjusts the direction back and then discharges to switch board 1 inside, in order to do ventilation cooling.

Referring to fig. 1 and 2, a plurality of ventilation pipes 30 communicated with the ventilation box 31 are arranged around the ventilation box 31, each ventilation pipe 30 comprises an air inlet pipe 301 and a corrugated pipe 302 which are fixed and communicated with the ventilation box 31, and two ends of each corrugated pipe 302 are respectively communicated and fixed to one end of each air inlet pipe 301, which is far away from the ventilation box 31, and air outlets of the air guide plates 22 and the connecting plates 221 which are located at the lower part of the power distribution cabinet 1. The bellows 302 may be a metal bellows.

Can be with the leading-in to ventilation box 31 of the air that is located the air outlet department of the induced air board two 22 and the connecting plate two 221 of switch board 1 lower part through ventilation pipe 30, simultaneously when using and installing, can do the angle and the altitude mixture control of adaptability through bellows 302 to reduce because of machining error leads to the possibility that ventilation box 31 can't communicate the air outlet of the induced air board two 22 and the connecting plate two 221 that are located the switch board 1 bottom, optimize the result of use.

Referring to fig. 1 and 2, the adjusting member 33 includes a ventilation board 331 and an adjusting plate 332 attached to an upper surface of the ventilation board 331, the ventilation board 331 is horizontally disposed, and an edge of the ventilation board 331 is bent downward to form a first fixing plate 3311, the first fixing plate 3311 is fixedly connected to an upper opening edge of the ventilation box 31 by a bolt, and the ventilation board 331 is located above an opening of the ventilation box 31, so that the ventilation board 331 is detachably connected to the opening edge of the ventilation box 31 by the first fixing plate 3311. The ventilation plate 331 is provided with a plurality of ventilation holes 333 formed around the center thereof, and the ventilation holes 333 are elongated holes having a central axis passing through the ventilation box 31 in the longitudinal direction thereof.

Referring to fig. 2 and 3, the adjusting plate 332 is a circular plate-shaped structure, and the edge of the adjusting plate is bent downward to form a second fixing plate 3321, the lower edge of the second fixing plate 3321 is bent toward the ventilation box 31, the opening edge of the ventilation box 31 is bent outward horizontally, and the second fixing plate 3321 is sleeved on the outer wall of the opening edge of the ventilation box 31, so that the adjusting plate 332 is rotatably connected to the ventilation box 31. The second fixing plate 3321 is threaded and connected with a fixing bolt, and the fixing bolt abuts against the bending part on the opening edge of the ventilation box 31, so that the adjusting plate 332 can be relatively tightly attached to the ventilation plate 331 and can be locked in rotation.

The adjustment plate 332 is provided with a plurality of adjustment hole groups 34 arranged around the central axis thereof, and the number of the adjustment hole groups 34 corresponds to the number of the ventilation holes 333. The adjusting hole group 34 comprises a first adjusting hole 341 and a second adjusting hole 342 which penetrate through the adjusting plate 332 along the thickness direction of the adjusting plate 332, and a first adjusting box 343 and a second adjusting box 344 which cover the openings of the first adjusting hole 341 and the second adjusting hole 342 are fixedly connected to the outer walls of the opening edges of the first adjusting hole 341 and the second adjusting hole 342 respectively. The first adjusting box 343 and the second adjusting box 344 are both of a lower opening and a side opening structure, the lower bayonets of the first adjusting box 343 and the second adjusting box 344 are respectively communicated with the first adjusting hole 341 and the second adjusting hole 342, the side opening direction of the first adjusting box 343 is parallel to the tangential direction of the adjusting plate 332, and the side opening directions of the second adjusting boxes 344 face to the same side. The adjusting plate 332 may block the plurality of vent holes 333.

When the air-cooling type power distribution cabinet is used, air is introduced from the air vent 333, when the whole inside the power distribution cabinet 1 needs to be ventilated and cooled, the adjusting hole I341 can be communicated with the air vent 333 by rotating the adjusting plate 332, the air is guided by the adjusting box I343 after passing through the adjusting hole I341, and the air flow discharged to the inside of the power distribution cabinet 1 can form vortex, so that a relatively good ventilation and cooling effect can be achieved on a power distribution module inside the power distribution cabinet 1; if ventilation and heat dissipation need be done to the more position of a certain distribution module in switch board 1, accessible rotation regulating plate 332 makes two 342 of adjusting holes communicate in ventilation hole 333, makes the opening direction of two 344 of adjusting box towards the more position of distribution module simultaneously, can make when the air is discharged from two 344 of adjusting box, can flow towards the more position of distribution module to can concentrate and do ventilation and heat dissipation to the more position of distribution module, make ventilation and heat dissipation's effect better relatively.

Referring to fig. 2 and 3, a plurality of guide plates 345 parallel to the direction of the side openings of the second regulating box 344 are fixedly connected in the second regulating box 344, so that the air exhausted from the second regulating box 344 can be exhausted towards the direction of the openings in a more concentrated manner, and the effect of local ventilation and heat dissipation is further optimized.

Referring to fig. 1 and 2, the cover plate 23 is detachably attached to an outer wall of an opening edge of the outlet port 11 or the inlet port 12 by a plurality of bolts. At least one flame retardant piece 4 is clamped between the cover plate 23 and the second air guide plate 22. When a fire disaster occurs, the external smoke and fire can be reduced to enter the power distribution cabinet 1 through the air outlet 11 and the air inlet 12, so that the power distribution module can burn to cause a higher probability of fire disaster.

The flame-retardant piece 4 is an expanded graphite block and is provided with a plurality of vertically extending through holes 41, and the flame-retardant piece 4 is preferably a low-temperature expanded graphite block. When normal use, the air circulates from through-hole one 41, and when the conflagration breaing out, fire-retardant piece 4 can expand rapidly, blocks up the wind channel between apron 23 and the induced air board two 22 to reduce the possibility that outside firework got into, apron 23 can be dismantled simultaneously and connect in the opening border in air outlet 11 or income wind gap 12, can be when needing to change fire-retardant piece 4, and the accessible is pulled down apron 23 and is done the change to fire-retardant piece 4.

Referring to fig. 1 and 2, at least one dust filter 5 is clamped between the cover plate 23 and the second air guide plate 22, and the dust filter 5 and the flame retardant member 4 are distributed in a staggered manner. So as to be used for doing the filtration to the air of circulation, reduce the inside dust etc. of switch board 1.

The dust filter 5 is an activated carbon fiber block and is provided with a plurality of dust filter holes 51 allowing air to circulate, and the extension path of the dust filter holes 51 is spirally arranged. So that when using, the circulation in the air is from straining dirt hole 51 to adsorb dust etc. through straining dirt spare 5, the effect of the effectual optimization absorption dust of dirt of straining dirt hole 51 of spiral setting.

The implementation principle of a power distribution cabinet in the embodiment of the application is as follows: when the air-cooling type power distribution cabinet is used, the fan 32 is started, so that a larger negative pressure is generated in the power distribution cabinet 1 under the action of the started fan 32 and the temperature difference between the inside and the outside, cold air at the lower part of the outside is sucked in from the air inlet 12, and an air channel formed among the first air-guiding plate 21, the second air-guiding plate 22, the cover plate 23, the first connecting plate 211 and the second connecting plate 221 is sequentially introduced into the corrugated pipe 302 and the air inlet pipe 301 and then introduced into the ventilation box 31; meanwhile, the cover plate of the adjusting plate 332 can be rotated as required to discharge the air flow direction of the air in the power distribution cabinet 1, so that the ventilation and heat dissipation effects are optimized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a switch board, includes switch board (1), its characterized in that: the upper portion and the lower portion of switch board (1) have been seted up a plurality of air outlets (11) and income wind gap (12) respectively, air outlet (11) and income wind gap (12) are provided with ventilation assembly (2) respectively, ventilation assembly (2) include induced air board (21), induced air board two (22) and cover apron (23) of covering air outlet (11) or income wind gap (12), apron (23) do not cover air outlet (11) and income wind gap (12) completely, three adjacent border of induced air board (21) and induced air board two (22) is equallyd divide and is do not buckled the shaping towards the homonymy and have connecting plate one (211) and connecting plate two (221), the face of connecting plate one (211) and connecting plate two (221) all is the U form and both U form opening opposite direction, induced air board one (21) is located connecting plate two (221) inboardly, induced air board one (211) is kept away from induced air board one side and connecting plate two (221) are kept away from induced air board two (22) One side edge of each ventilation component II is fixedly connected to the opening edge of the air outlet (11) or the air inlet (12), a ventilation component II (3) used for adjusting the air direction is arranged at the bottom of the power distribution cabinet (1), and the air inlet end of the ventilation component II (3) is communicated with a plurality of air guide plates II (22) positioned at the bottom of the power distribution cabinet (1) and the air outlet of the connecting plate II (221); the second ventilation assembly (3) comprises a ventilation box (31) with an upper opening structure and a fan (32) arranged in the ventilation box (31), an adjusting piece (33) for adjusting the wind direction is arranged at the upper opening of the ventilation box (31), and the ventilation box (31) is communicated with a plurality of second air guide plates (22) positioned at the lower part of the power distribution cabinet (1) and air outlets of the second connecting plate (221); the adjusting part (33) comprises a ventilating plate (331) detachably connected to the opening edge of the ventilating box (31) and an adjusting plate (332) attached to the ventilating plate (331), the ventilating plate (331) is provided with a plurality of ventilation holes (333) formed around the center of the ventilating plate, the adjusting plate (332) is rotatably connected to the opening edge of the ventilating box (31), the adjusting plate (332) is provided with a plurality of adjusting hole groups (34), each adjusting hole group (34) comprises a first adjusting hole (341) and a second adjusting hole (342), both the first adjusting hole (341) and the second adjusting hole (342) can be communicated with the ventilation holes (333), the opening edges of the first adjusting hole (341) and the second adjusting hole (342) are respectively and fixedly connected with a first adjusting box (343) and a second adjusting box (344), the first adjusting box (343) and the second adjusting box (344) are of side opening and lower opening structures, and the lower openings of the first adjusting box (341) and the second adjusting box (342) are respectively communicated with the first adjusting hole (341) and the second adjusting hole (342), the direction of the side opening of the first adjusting box (343) is parallel to the tangential direction of the adjusting plate (332), and the side openings of a plurality of second adjusting boxes (344) face to the same side.

2. A switch board according to claim 1, characterized in that: encircle ventilation case (31) is provided with a plurality of ventilation pipes (30) rather than the intercommunication, ventilation pipe (30) are including income tuber pipe (301) and bellows (302) rather than the intercommunication, the both ends of bellows (302) communicate respectively in the air outlet that is located induced air board two (22) and connecting plate two (221) of switch board (1) lower part and the one end that ventilation case (31) were kept away from in income tuber pipe (301).

3. A switch board according to claim 1, characterized in that: a plurality of guide plates (345) parallel to the side opening direction of the second adjusting box (344) are fixedly connected in the second adjusting box.

4. A switch board according to claim 1, characterized in that: the fan (32) is positioned above the air inlet end of the ventilation box (31).

5. A switch board according to claim 1, characterized in that: the cover plate (23) is detachably connected to the opening edge of the air outlet (11) or the air inlet (12), and at least one flame-retardant piece (4) is clamped between the cover plate (23) and the second air guide plate (22).

6. A switch board of claim 5, characterized in that: the flame-retardant piece (4) is an expanded graphite block and is provided with a plurality of first through holes (41) for air to pass through.

7. A switch board according to claim 1, characterized in that: the cover plate (23) is detachably connected to the opening edge of the air outlet (11) or the air inlet (12), and at least one dust filter (5) is clamped between the cover plate (23) and the second air guide plate (22).

8. A switch board of claim 7, characterized in that: the dust filtering piece (5) is an activated carbon fiber block and is provided with a plurality of dust filtering holes (51) capable of allowing air to circulate, and the extending path of the dust filtering holes (51) is spirally arranged.