CN213782509U - Power distribution cabinet for building automatic control - Google Patents

Abstract

The utility model discloses a switch board for building automatic control, including distribution frame, the cabinet body, top eaves and heat abstractor, heat abstractor includes the heat dissipation frame, locate hinge in the heat dissipation frame and be used for according to the wind speed size with the drive the hinge corresponds the drive arrangement of switching one by one, drive arrangement includes the detecting element who is used for detecting the wind speed size, locate pivot in the hinge, be used for realizing the rocker group of pivot linkage, be used for connecting the rocker group respectively in the connecting component on the pivot, be used for driving the hinge driving motor that opens and shuts and restrict the hinge and rotate by oneself the restriction subassembly, and the pivot includes the dead axle that rigid coupling is in on the hinge, with the moving axis of dead axle swing joint and be used for when the hinge folds the protection movable axis not excessively twist reverse's protection subassembly; through drive arrangement's setting, drive single driving motor realizes the unified of hinge and closes, avoids the rainwater to enter into the switch board in, guarantees the normal work of interior work element of switch board.

Description

Power distribution cabinet for building automatic control

Technical Field

The utility model belongs to the technical field of the switch board, especially, relate to a switch board for building automatic control.

Background

At present, along with the development of electric power, the switch board has become more and more popular in life, and the switch board is used for industrial park, residential community and commercial center etc. and often can open air and set up beside the building as cable network's main switchgear.

And the switch board is for the heat dissipation, and the mode that adopts the hinge plate more dispels the heat, but, when meetting torrential rain weather or the great rainy weather of wind speed grade, often appear the rainwater easily and be blown into the condition of switch board to the condition that the working element of switch board breaks down seriously influences the normal operating of switch board, influences building resident's normal power consumption.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome prior art not enough, provide one kind and can block that the rainwater gets into in order to guarantee the normal moving switch board that is used for building automatic control of the working element of switch board in the switch board.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a switch board for building automatic control, includes the distribution frame, locates cabinet body on the distribution frame, locate the top eaves at cabinet body top and be used for radiating heat abstractor, its characterized in that: heat abstractor is including the heat dissipation frame, locates hinge in the heat dissipation frame and be used for according to the wind speed size with the drive the hinge corresponds the drive arrangement of switching one by one, drive arrangement is including being used for detecting the detecting element of wind speed size, locating pivot in the hinge, be used for realizing the rocker group of linkage between the pivot, be used for with the rocker group do not connect in change epaxial coupling assembling, be used for driving the driving motor that the hinge opened and shut and restriction hinge pivoted limit rotation subassembly by oneself, the pivot from the top in proper order the interval equipartition have four, just the pivot include the rigid coupling in epaxial dead axle of dead axle swing joint, with the dead axle of protection when dead axle swing joint's moving axis and being used for the hinge to fold the protection subassembly that the protection moving axis was not excessively twistd reverse.

Through drive arrangement's setting, through detecting element detection wind speed size, the single driving motor of drive realizes the unified of hinge and closes, avoids the rainwater to enter into the switch board in, guarantees the normal work of interior work element of switch board.

Preferably, the rocker group comprises a first rocker, a second rocker, a third rocker, a fourth rocker and a connecting rod, the first rocker, the second rocker, the third rocker and the fourth rocker are correspondingly connected with the rotating shaft from top to bottom in sequence through connecting components and are all hinged to the connecting rod; the driving motor is fixedly connected to the first rocker; the connecting assembly comprises a boss arranged on the end face of the moving shaft far away from the fixed shaft end, a first rotating groove arranged on the first rocker, a second rotating groove arranged on the second rocker, a third rotating groove arranged on the third rocker and a fourth rotating groove arranged on the fourth rocker, the boss can be respectively matched with the first rotating groove, the second rotating groove, the third rotating groove and the fourth rotating groove, the circumferential widths of the first rotating groove, the second rotating groove, the third rotating groove and the fourth rotating groove are sequentially reduced, and the circumferential width of the fourth rotating groove is the same as that of the boss.

Through the arrangement of the rocker group and the connecting component, when the motor drives the first rocker, the first rocker rotates, but because the circumferential width of the first rotary groove on the first rocker is wider than the boss, the rotation of the rotary shaft at the position can not be realized temporarily, and simultaneously, the second rocker, the third rocker and the fourth rocker are driven to rotate together through the driving of the connecting rod, and because the circumferential width of the fourth rotary groove is minimum, the groove wall of the fourth rotary groove is firstly contacted with the boss matched with the fourth rotary groove to drive the rotary shaft at the position to rotate, so that the closing of the hinge at the bottom is realized; in a similar way, the third rotary groove, the second rotary groove and the first rotary groove are sequentially contacted with the bosses in the third rotary groove, the second rotary groove and the first rotary groove according to the difference of circumferential widths, so that the rotary shafts at all positions are driven to drive the hinges to be sequentially closed. Under with the final single motor drive's of realization condition, the hinge corresponds the hinge of closing suitable quantity according to the condition of wind speed, guarantees under the difficult condition that gets into the switch board of rainwater, improves the radiating effect of switch board.

Preferably, the protection assembly comprises a straight notch arranged at the end part of the fixed shaft, a protection spring arranged in the straight notch, a deflector rod arranged at the end part of the movable shaft and a coaxial piece used for limiting the coaxiality of the fixed shaft and the movable shaft, the deflector rod is inserted into the straight notch in a matching way, one end of the protection spring is abutted against the inner wall of the straight notch, and the other end of the protection spring is abutted against the side wall of the deflector rod; the coaxial piece comprises a center hole arranged in the center of the end part of the fixed shaft and a center shaft arranged in the center of the end part of the movable shaft, and the center shaft can be inserted in the center hole in a matched mode.

Through the arrangement of the protection assembly, the mechanism can be protected from being damaged easily, and the normal operation of the mechanism is guaranteed. When the hinge in the pivot that second rotary tank, third rotary tank, fourth rotary tank are connected rotates extreme position, because the motor still drives and rotates, can produce the dead torque to the pivot, and through the setting of protection subassembly, this dead torque can drive the driving lever and extrude protection spring to offset torsional force and torsional stroke, realize the protection to the mechanism.

Preferably, the rotation limiting assembly comprises a workbench arranged on the side wall of the heat dissipation frame, a sleeve table arranged on the workbench, a rotation limiting spring arranged in the sleeve, and a fixed shaft far away from the toothed wheel arranged on one end of the moving shaft and a supporting block for limiting the rotation of the toothed wheel, wherein the supporting block is inserted in the sleeve table, one end of the rotation limiting spring is fixedly connected to the bottom of the sleeve table, and the other end of the rotation limiting spring is fixedly connected to the bottom of the supporting block.

Through the setting of limit commentaries on classics subassembly, when first rotary trough, second rotary trough, third rotary trough, fourth rotary trough do not contact with the boss that corresponds, can restrict the hinge and rotate the whereabouts by oneself, guarantee the normal operating of mechanism to finally guarantee the normal heat dissipation of switch board.

Preferably, be equipped with the stop device that restriction steam got into in the switch board on the hinge, stop device is including being used for restricting the rainwater and getting into the subassembly that blocks rain that blocks in the clearance between the hinge and being used for absorbing the dehumidification subassembly that gets into the steam in the clearance between the hinge.

Through the setting of blocking device, restriction steam gets into in the switch board, keeps the drying in the switch board to realize the normal operating of the interior working element of switch board.

Preferably, the rain blocking assembly comprises a first movable groove arranged at the bottom of the hinge and the bottom of the top frame of the heat dissipation frame, an insertion block inserted in the first movable groove, a first reset spring used for generating pre-pressure to the insertion block, insertion grooves arranged at the top of the hinge and the top of the bottom frame of the heat dissipation frame, and a sealing strip arranged in the insertion grooves, wherein the insertion block is matched in the first movable groove and can move up and down along the first movable groove, one end of the first reset spring is fixedly connected to the top of the first movable groove, and the other end of the first reset spring is fixedly connected to the top of the insertion block; the insertion block can be correspondingly matched and inserted into the insertion groove at the top of the hinge below the insertion block and extruded on the sealing strip.

Through hindering all the time of rain subassembly, can restrict in the rainwater directly flows into the switch board, keep the drying in the switch board to realize the normal operating of the interior working element of switch board.

Preferably, the dehumidification subassembly is including locating hinge bottom with the second movable groove of heat dissipation frame top frame bottom, the cotton that absorbs water that is used for absorbing the moisture, be used for the pulling absorb water the cotton hide in extension spring in the second movable groove and be used for the drive absorb water the cotton cooperation of absorbing water and support and press in the below clamp plate component on the hinge, clamp plate component is including locating the hinge top with the arch at heat dissipation frame underframe top, locating the hinge bottom with the rotation platform of heat dissipation frame top frame bottom and articulate in rotate the epaxial rotor plate, rotor plate one end is inserted in absorb water in the cotton, the other end butt has the arch.

Through the setting of dehumidification subassembly, can stir the rotor plate through the arch and drive the cotton that absorbs water and push down to absorb the moisture that gets into through hinge gap, keep the drying in the switch board, with the normal operating of the working element who realizes in the switch board.

Preferably, the bottom of hinge is equipped with the bulge tip, wrap up the sealing glue layer on the bulge tip inner wall, and its inner wall can cooperate the butt in the hinge top of its below.

Through the setting of protruding point, can be through the effect of pointed end direction, when avoiding producing the condition that the rainwater flows into the switch board like setting up of plane end, leakproofness when further guaranteeing the hinge and closing further limits the entering of rainwater.

Preferably, the top eave top is the shape setting that the front and back terminal surface is high and the centre is low, be equipped with on the top eave top left and right sides and be used for blockking the platform that keeps off that rivers directly fall, the both sides that keep off the platform are seted up the groove that falls that allows the rainwater whereabouts.

Through the setting of top eaves shape and fender platform, make the rainwater from fixed position whereabouts, when avoiding the rainwater to fall simultaneously everywhere, because the effect of wind, produce the condition of falling into the switch board, further reduce the probability that the rainwater got into the switch board, guarantee the inside drying of switch board.

Preferably, the bottom of the top eaves is provided with a plurality of grooves for blocking rainwater from directly flowing to the cabinet body, and a water blocking plate is arranged on the groove edge on one side of the groove close to the cabinet body.

Through the setting of recess and water-blocking plate, direct flow to switch board when can restricting the rainwater refluence further reduces the probability that the rainwater got into the switch board, guarantees the inside drying of switch board.

In summary, through the arrangement of the driving device, the wind speed is detected by the detection element, the single driving motor is driven, and the hinges with corresponding quantity are closed correspondingly in sequence, so that rainwater is prevented from entering the power distribution cabinet, and the heat dissipation effect of the power distribution cabinet is improved under the condition that the normal work of the working element in the power distribution cabinet is ensured; by means of the arrangement of the blocking device, water vapor is limited from entering the power distribution cabinet, and the inside of the power distribution cabinet is kept dry, so that the working elements in the power distribution cabinet can normally run; through the setting of the shape of the top eaves, the baffle table, the groove and the water blocking plate, the probability that rainwater enters the power distribution cabinet is further reduced, and the drying inside the power distribution cabinet is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram of the heat dissipation device of the present invention.

Fig. 4 is a partially enlarged view of fig. 3 at B.

Fig. 5 is a partially enlarged view of C in fig. 3.

Fig. 6 is a partially enlarged view of fig. 3 at D.

Fig. 7 is a partial enlarged view of fig. 3 at E.

Fig. 8 is a schematic structural view of the rotating shaft of the present invention.

Fig. 9 is a partial enlarged view of J in fig. 8.

Fig. 10 is a first cross-sectional view of the present invention.

Fig. 11 is a partial enlarged view at G in fig. 10.

Fig. 12 is a second cross-sectional view of the present invention.

Fig. 13 is a partial enlarged view of fig. 12 at H.

Fig. 14 is a partial enlarged view at I in fig. 13.

Detailed Description

As shown in fig. 1-14, a switch board for building automatic control, including distribution frame 1, the cabinet body 11, top eaves 12 and heat abstractor, the cabinet body 11 is located on the distribution frame 1, heat abstractor includes heat dissipation frame 21, hinge 22 and drive arrangement, hinge 22 rotate connect in heat dissipation frame 21 and drive arrangement can drive hinge 22 and rotate, hinge 22's bottom is equipped with protruding point 23, the parcel has the sealant layer on the protruding point 23 inner wall, and hinge 22 top of its inner wall cooperable butt below it.

Further, the top of the top eave 12 is arranged in a shape that the front end face and the rear end face are high and the middle is low, blocking platforms 121 are arranged on the left side and the right side of the top eave 12, and both sides of each blocking platform 121 are provided with falling grooves 122 allowing rainwater to fall; the bottom of the top eaves 12 is provided with a plurality of grooves 123 for blocking rainwater from directly flowing to the cabinet body 11, and a water blocking plate 124 is arranged on one side groove edge of the groove 123 close to the cabinet body 11.

Drive arrangement includes detecting element 31, pivot 32, rocker group, coupling assembling, driving motor 33 and limit and changes the subassembly, detecting element 31 is for detecting the flabellum, detect the flabellum set up in top eaves 12 bottoms, when wind blows and detects the flabellum and rotate, according to the difference of rotational speed, produce the not current of equidimension, detect out the size of wind speed through the size of measuring current.

Further, pivot 32 from the top down interval equipartition in proper order has four, pivot 32 includes dead axle 321, moving axis 322 and protection subassembly, moving axis 322 through coupling assembling with the rocker group corresponds the connection, dead axle 321 welds in on the hinge 22, the protection subassembly can protect moving axis 322 not excessively to twist reverse.

Specifically, the protection assembly comprises a straight notch 3231, a protection spring 3232, a shift lever 3233 and a coaxial element, the straight notch 3231 is arranged at the end of the fixed shaft 321, the shift lever 3233 is welded and arranged at the end of the movable shaft 322 and is inserted into the straight notch 3231 in a matching manner, one end of the protection spring 3232 abuts against the inner wall of the straight notch 3231, and the other end abuts against the side wall of the shift lever 3233; the coaxial part comprises a central hole 3234 arranged in the center of the end part of the fixed shaft 321 and a central shaft 3235 arranged in the center of the end part of the movable shaft 322, and the central shaft 3235 can be inserted into the central hole 3234 in a matching manner.

Specifically, the rocker group includes a first rocker 341, a second rocker 342, a third rocker 343, a fourth rocker 344 and a connecting rod 345, and the first rocker 341, the second rocker 342, the third rocker 343 and the fourth rocker 344 are sequentially connected with the moving shaft 322 from top to bottom through a connecting assembly, and are all hinged to the connecting rod 345; the driving motor 33 is fixed to the first rocking bar 341.

Specifically, the connecting assembly includes a boss 355, a first rotating groove 351, a second rotating groove 352, a third rotating groove 353, and a fourth rotating groove 354, the boss 355 is disposed on an end surface of the moving shaft 322 away from the fixed shaft 321, the first rotating groove 351 is opened on the first rocking bar 341, the second rotating groove 352 is opened on the second rocking bar 342, the third rotating groove 353 is opened on the third rocking bar 343, the fourth rotating groove 354 is opened on the fourth rocking bar 344, the boss 355 on the moving shaft 322 may be respectively fitted into the first rotating groove 351, the second rotating groove 352, the third rotating groove 353, and the fourth rotating groove 354, circumferential widths of the first rotating groove 351, the second rotating groove 352, the third rotating groove 353, and the fourth rotating groove 354 are sequentially reduced, and a circumferential width of the fourth rotating groove 354 is the same as a width of the boss 355.

Further, the rotation limiting assembly comprises a workbench 361, a sleeve table 362, rotation limiting springs 363, a toothed wheel 364 and a butting block 365, wherein the workbench 361 is arranged on the side wall of the heat dissipation frame 21 and four of the workbench 361 are sequentially arranged from top to bottom, the sleeve table 362 is fixed on the workbench 361 in a threaded manner, the butting block 365 is inserted into the sleeve table 362, one end of each rotation limiting spring 363 is fixedly connected to the bottom of the sleeve table 362, and the other end of each rotation limiting spring 363 is fixedly connected to the bottom of the butting block 365; the toothed wheel 364 is fixedly connected to one end of the fixed shaft 321 away from the moving shaft 322; the abutment block 365 abuts between the teeth of the toothed wheel 364.

Furthermore, a blocking device is arranged on the hinge 22 and comprises a rain blocking assembly and a dehumidifying assembly, the rain blocking assembly comprises a first movable groove 41, an inserting block 42, a first return spring 43, an inserting groove 44 and a sealing strip 45, the first movable groove 41 is formed in the bottom of the hinge 22 and the bottom of the top frame of the heat dissipation frame 21, the inserting block 42 is matched in the first movable groove 41 and can move up and down along the first movable groove 41, one end of the first return spring 43 is welded to the top of the first movable groove 41, and the other end of the first return spring is welded to the top of the inserting block 42; the top of the hinge 22 and the top of the bottom frame of the heat dissipation frame 21 are both provided with the insertion groove 44, the sealing strip 45 is embedded in the insertion groove 44, and the insertion block 42 can be correspondingly inserted in the insertion groove 44 at the top of the hinge 22 below the insertion block in a matching manner and is extruded on the sealing strip 45.

The dehumidification subassembly includes second movable groove 51, cotton 52 that absorbs water, extension spring 53 and clamp plate component, hinge 22 bottom with heat dissipation frame 21 top frame bottom has all been seted up the second movable groove 51, cotton 52 that absorbs water inlays to be located in the second movable groove 51, extension spring 53 one end rigid coupling in on the cotton 52 that absorbs water, one end rigid coupling in the second movable groove 51.

Further, the clamp plate component includes protruding 541, rotation platform 542 and rotor plate 543, hinge 22 top with heat dissipation frame 21 underframe top all is equipped with protruding 541, the hinge 22 bottom with heat dissipation frame 21 top frame bottom has all been seted up rotation platform 542, rotor plate 543 articulate in on the rotation platform 542, rotor plate 543 one end is inserted in absorb water in the cotton 52, and the other end butt has protruding 541, and its one end of inserting rotor plate 543 is far from the other end.

Detailed description of the preferred embodiment

When raining, the wind speed is detected by the detection element 31, the drive motor 33 is electrified to drive the first rocking bar 341 to rotate, the second rocking bar 342, the third rocking bar 343 and the fourth rocking bar 344 are driven to rotate together by the transmission of the connecting rod 345, and the groove wall of the fourth rotating groove 354 is firstly contacted with the matched boss 355 due to the minimum circumferential width, so that the rotating shaft 32 at the position is driven to rotate, and the hinge 22 at the bottommost part is closed; then, the third rotating groove 353, the second rotating groove 352 and the first rotating groove 351 are sequentially contacted with the boss 355 therein according to different circumferential widths, so that the rotating shafts 32 at all positions are driven to drive the hinges 22 to be sequentially closed from top to bottom; when the condition according to wind speed, can correspond and close hinge 22 of suitable quantity, guarantee that the rainwater is difficult for getting into under the condition of switch board, improve the radiating effect of switch board.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a switch board for building automatic control, includes distribution frame (1), locates cabinet body (11) on the distribution frame (1), locate the top eaves (12) at cabinet body (11) top and be used for radiating heat abstractor, its characterized in that: the heat dissipation device comprises a heat dissipation frame (21), hinges (22) arranged in the heat dissipation frame (21) and a driving device for driving the hinges (22) to be correspondingly opened and closed one by one according to the wind speed, the driving device comprises a detection element (31) for detecting the wind speed, a rotating shaft (32) arranged in the hinge (22), a rocker group for realizing linkage between the rotating shafts (32), a connecting component for respectively connecting the rocker group to the rotating shaft (32), a driving motor (33) for driving the hinge (22) to open and close and a rotation limiting component for limiting the hinge (22) to rotate automatically, wherein four rotating shafts (32) are sequentially and uniformly distributed at intervals from top to bottom, and the rotating shaft (32) comprises a fixed shaft (321) fixedly connected to the hinge (22), a moving shaft (322) movably connected with the fixed shaft (321), and a protection assembly for protecting the moving shaft (322) from excessive torsion when the hinge (22) is folded.

2. The power distribution cabinet for building automatic control according to claim 1, characterized in that: the rocker group comprises a first rocker (341), a second rocker (342), a third rocker (343), a fourth rocker (344) and a connecting rod (345), and the first rocker (341), the second rocker (342), the third rocker (343) and the fourth rocker (344) are sequentially connected with the rotating shaft (32) from top to bottom through connecting components and are all hinged on the connecting rod (345); the driving motor (33) is fixedly connected to the first rocker (341); the connecting component comprises a boss (355) arranged on the end face of the moving shaft (322) far away from the fixed shaft (321), a first rotating groove (351) arranged on the first rocker (341), a second rotating groove (352) arranged on the second rocker (342), a third rotating groove (353) arranged on the third rocker (343) and a fourth rotating groove (354) arranged on the fourth rocker (344), wherein the boss (355) can be respectively matched with the first rotating groove (351), the second rotating groove (352), the third rotating groove (353) and the fourth rotating groove (354), and the circumferential widths of the first rotating groove (351), the second rotating groove (352), the third rotating groove (353) and the fourth rotating groove (354) are sequentially reduced.

3. The power distribution cabinet for building automatic control according to claim 1, characterized in that: the protection assembly comprises a straight notch (3231) arranged at the end part of the fixed shaft (321), a protection spring (3232) arranged in the straight notch (3231), a shifting rod (3233) arranged at the end part of the movable shaft (322) and a coaxial piece for limiting the coaxiality of the fixed shaft (321) and the movable shaft (322), the shifting rod (3233) is inserted in the straight notch (3231) in a matched mode, one end of the protection spring (3232) abuts against the inner wall of the straight notch (3231), and the other end of the protection spring abuts against the side wall of the shifting rod (3233); the coaxial part comprises a central hole (3234) arranged in the center of the end part of the fixed shaft (321) and a central shaft (3235) arranged in the center of the end part of the movable shaft (322), and the central shaft (3235) can be inserted into the central hole (3234) in a matching mode.

4. The power distribution cabinet for building automatic control according to claim 1, characterized in that: the rotation limiting assembly comprises a workbench (361) arranged on the side wall of the heat dissipation frame (21), a sleeve table (362) arranged on the workbench (361), a rotation limiting spring (363) arranged in the sleeve, and a fixed shaft (321) far away from a toothed wheel (364) at one end of the moving shaft (322) and a supporting block (365) for limiting the rotation of the toothed wheel (364), wherein the supporting block (365) is inserted into the sleeve table (362), one end of the rotation limiting spring (363) is fixedly connected to the bottom of the sleeve table (362), and one end of the rotation limiting spring is fixedly connected to the bottom of the supporting block (365).

5. The power distribution cabinet for building automatic control according to claim 1, characterized in that: be equipped with the stop device that restriction steam got into in the switch board on hinge (22), stop device is including being used for restricting rainwater and getting into the rain subassembly that hinders in the clearance between hinge (22) and being used for absorbing the dehumidification subassembly that gets into the steam in the clearance between hinge (22).

6. The power distribution cabinet for building automatic control according to claim 5, characterized in that: the rain-proof assembly comprises a first movable groove (41) arranged at the bottom of the hinge (22) and the bottom of a top frame of the heat dissipation frame (21), an insertion block (42) inserted in the first movable groove (41), a first return spring (43) used for generating pre-pressure to the insertion block (42), an insertion groove (44) arranged at the top of the hinge (22) and the top of a bottom frame of the heat dissipation frame (21), and a sealing strip (45) arranged in the insertion groove (44), the insertion block (42) is matched in the first movable groove (41) and can move up and down along the first movable groove (41), one end of the first return spring (43) is fixedly connected to the top of the first movable groove (41), and the other end of the first return spring is fixedly connected to the top of the insertion block (42); the inserting block (42) can be correspondingly matched and inserted into the inserting groove (44) at the top of the hinge (22) below the inserting block and pressed on the sealing strip (45).

7. The power distribution cabinet for building automatic control according to claim 5, characterized in that: the dehumidification subassembly is including locating hinge (22) bottom with second movable groove (51) of heat dissipation frame (21) top frame bottom, the cotton (52) that absorb water that are used for absorbing the moisture, be used for the pulling absorb water the cotton hide in extension spring (53) in second movable groove (51) and be used for the drive absorb water cotton (52) cooperation is supported and is pressed in the below clamp plate component on hinge (22), the clamp plate component is including locating hinge (22) top with protruding (541) at heat dissipation frame (21) underframe top, locate hinge (22) bottom with rotation platform (542) of heat dissipation frame (21) top frame bottom and articulate in rotation board (543) on rotation platform (542), rotation board (543) one end plug-in absorb water in cotton (52), the other end butt joint have protruding (541).

8. The power distribution cabinet for building automatic control according to claim 1, characterized in that: the bottom of hinge (22) is equipped with protruding point (23), parcel sealing glue layer on protruding point (23) inner wall, and its inner wall can cooperate the butt in hinge (22) top of its below.

9. The power distribution cabinet for building automatic control according to claim 1, characterized in that: the roof eaves (12) top is the shape setting that the front and back terminal surface is high and the centre is low, be equipped with on the roof eaves (12) top left and right sides and be used for blockking fender platform (121) that rivers directly fall, the groove (122) that falls that allows the rainwater whereabouts are seted up to the both sides that keep off platform (121).

10. The power distribution cabinet for building automatic control according to claim 1, characterized in that: the bottom of the top eaves (12) is provided with a plurality of grooves (123) for blocking rainwater from directly flowing to the cabinet body (11), and a water blocking plate (124) is arranged on one side groove edge of the groove (123) close to the cabinet body (11).

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