CN114583564B

CN114583564B - Block terminal with overheated early warning function

Info

Publication number: CN114583564B
Application number: CN202210253444.0A
Authority: CN
Inventors: 孙杰; 贾清泉; 王成松; 李海涛; 许健宇; 王大鹏; 姜君; 秦悦; 于婉婷; 赵浩然; 高金昊; 王珺; 代文波
Original assignee: Qiqihar Power Supply Co Of State Grid Heilongjiang Electric Power Co ltd; State Grid Corp of China SGCC
Current assignee: Qiqihar Power Supply Co Of State Grid Heilongjiang Electric Power Co ltd; State Grid Corp of China SGCC
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-09-30
Anticipated expiration: 2042-03-15
Also published as: CN114583564A

Abstract

The invention relates to the technical field of distribution equipment, in particular to a distribution box with an overheat early warning function. The technical scheme comprises the following steps: distribution box, distribution box is including carrying thing cabinet, chamber door, sight glass, the logical groove of airing exhaust, the top of carrying the thing cabinet is equipped with carries out overheated early warning and carries out the early warning mechanism of first cooling to the block terminal, and the rear side of early warning mechanism is equipped with the heat dissipation mechanism that carries out the second cooling to the block terminal. The distribution box is improved to have the functions of overheating early warning, heat dissipation, dust prevention, dust collection and the like, wherein: firstly, due to the arrangement of overheating early warning, the distribution box has the functions of high-temperature early warning, dust fall, primary cooling and the like; secondly, the heat dissipation device is arranged, so that the distribution box can be subjected to secondary cooling treatment after high-temperature early warning; thirdly, through dustproof and dust collecting device's cooperation use, not only avoided the dust to the radiating influence of block terminal, also avoided the adhesion to equipment simultaneously.

Description

Block terminal with overheated early warning function

Technical Field

The invention relates to the technical field of distribution equipment, in particular to a distribution box with an overheat early warning function.

Background

The utility model provides a current chinese patent that the grant bulletin number is grant bulletin number CN213212679U, it discloses a block terminal with high temperature early warning function, through setting up temperature monitor, a temperature in being used for detecting the block terminal, when temperature monitor detects the temperature anomaly, the warning light can light, send out the police dispatch newspaper, through setting up sealing strip and rainshelter, a power distribution box for sealing, prevent to intake in the rainy day block terminal, through setting up the spout, make the mounting panel can slide in the spout, be convenient for install the article on the mounting panel, through setting up the wiring board, make things convenient for the setting of electric wire in the block terminal, different electric wire thicknesses are different, can take out the limiting plate from the limiting groove, change different limiting groove, can make the electric wire card of different grade type on the wiring board.

The temperature monitor in the comparison file only plays a role in reminding, the function of the comparison file is single, meanwhile, a heat dissipation mechanism is not arranged in the comparison file, and after a worker is prompted, the worker can only dissipate heat by opening a cabinet door or carrying heat dissipation equipment, and in the process, the equipment in the distribution box can be damaged due to overheating; in addition, a large amount of dust can be adsorbed at the fan heat opening and the fan and enter the distribution box, and the dust is adhered to the equipment, so that the heat dissipation of the equipment is affected.

Disclosure of Invention

The invention aims to provide a multifunctional distribution box with an overheating early warning function, aiming at the problems of dust infection, no heat dissipation function and the like in the background technology.

The technical scheme of the invention is as follows: a distribution box with an overheat early warning function comprises a distribution box body, wherein the distribution box body comprises a material carrying cabinet, a box door, an observation mirror and an exhaust through groove, an early warning mechanism for carrying out overheat early warning on the distribution box and carrying out primary cooling on the distribution box is arranged above the material carrying cabinet, a heat dissipation mechanism for carrying out secondary cooling on the distribution box is arranged on the rear side of the early warning mechanism, dust screens c for dissipating heat are arranged on the left side wall and the right side wall of the early warning mechanism, a cleaning mechanism for cleaning dust of the dust screens c is jointly arranged at the peripheries of the two dust screens c, a first dust collection mechanism is arranged between the two dust screens c, a second dust collection mechanism for collecting the dust is jointly arranged between the two first dust collection mechanisms, the early warning mechanism comprises a straight cylinder arranged on the upper end face of the material carrying cabinet, a heat conducting metal round block is fixed in the straight cylinder, an upper cover is arranged on the upper end face of the straight cylinder, a water temperature alarm is arranged above the upper cover, the lower end part of the water temperature alarm penetrates through the upper cover, the downward extension length of the water temperature alarm is lower than the horizontal plane in the straight cylinder, a vertical pipe is arranged at the upper end of the upper cover and communicated with the straight cylinder, a spray head is arranged at the upper end of the vertical pipe, a water injection pipe arranged on the upper cover is arranged at the rear side of the water temperature alarm, the water injection pipe is communicated with the straight cylinder, a sealing plug is arranged at the upper end of the water injection pipe, the heat dissipation mechanism comprises a heat dissipation box fixed at the rear end of the carrier cabinet, a through groove arranged at the rear end of the carrier cabinet is arranged in the heat dissipation box, a dust screen a is arranged in the through groove, a cleaning brush a is arranged at the rear side of the dust screen a, the front end of the cleaning brush a is contacted with the dust screen a, a rotating rod a is centrifugally fixed at the rear end of the cleaning brush a, the rotating rod a is rotatably connected with the inner rear wall of the heat dissipation box, and fan blades are fixedly sleeved on the rotating rod a, the rear side of the heat dissipation box is provided with a driving motor, the output end of the driving motor is fixedly connected with the rotating rod a, the cleaning mechanism comprises a worm wheel a fixedly sleeved on the rotating rod a, the lower end of the worm wheel a is connected with a worm a in a meshed manner, the left end and the right end of the worm a are respectively fixed with a connecting rod, the outer ends of the two connecting rods extend to the outer side of the heat dissipation box through bearings, a worm wheel b is fixed at the outer end of each connecting rod, a worm b is connected with the lower end of the worm wheel b in a meshed manner, a cleaning assembly is arranged on the front side of the worm b and comprises positioning blocks arranged on the front side and the rear side of a dustproof net c, the positioning blocks are fixedly connected with the side wall of the object carrying cabinet, a reciprocating lead screw is rotatably connected between the two positioning blocks, the rear end of the reciprocating lead screw is fixedly connected with the worm b, a fixing sleeve is arranged on the reciprocating lead screw through a ball nut sleeve, and a connecting block is fixed at the inner end of the fixing sleeve, the inner end of the connecting block is fixed with a cleaning brush b, the inner end of the cleaning brush b is contacted with the outer end of a dustproof net c, the cleaning assembly comprises a longitudinal through groove arranged on the side wall of the carrying cabinet, a moving block is movably arranged in the longitudinal through groove and is fixedly connected with the upper end of the cleaning brush b, a dustproof cover arranged on the side wall of the carrying cabinet is arranged on the outer side of the longitudinal through groove, the first dust collecting mechanism comprises a longitudinal rod fixed in the carrying cabinet, a movable sleeve is movably sleeved on the longitudinal rod, a fixed rod is fixed at the lower end of the movable sleeve, the front end of the fixed rod is contacted with the rear end of the moving block, a vertical box is fixed at the lower end of the fixed rod, the outer end of the vertical box is contacted with the inner end of the dustproof net c, a spring sleeved on the longitudinal rod is fixed between the movable sleeve and the rear wall inside the carrying cabinet, a connecting pipe communicated with the inner end of the spring is fixed at the inner end of the spring, the second dust collecting mechanism comprises a dust collecting box fixed at the upper end of a heat radiating box, the dust collection box is internally fixed with a vertically arranged dust screen b, the rear side of the dust screen b is provided with a centrifugal blade, the rear end of the centrifugal blade is fixed with a rotating rod b, the rear end of the rotating rod b extends to the outer side of the dust collection box through a bearing, the rear end of the rotating rod b is fixed with a belt pulley a, the lower side of the belt pulley a is connected with a belt pulley b through belt transmission, the belt pulley b is sleeved on an output shaft fixed on a driving motor, the second dust collection mechanism further comprises a U-shaped pipe fixed at the upper end of the dust collection box, one end of the U-shaped pipe is communicated with the dust collection box, the other end of the U-shaped pipe extends into a carrying cabinet, and the other end of the dust collection box is connected with a connecting pipe through an external hose and an external three-way pipe.

Preferably, a plurality of dust absorption through holes are formed in the outer end of the vertical box.

Compared with the prior art, the invention has the following beneficial technical effects:

through improving the block terminal, make it possess functions such as overheated early warning, heat dissipation, dustproof, collection dirt, wherein: firstly, due to the arrangement of overheating early warning, the distribution box has the functions of high-temperature early warning, dust fall, primary cooling and the like; secondly, the heat dissipation device is arranged, so that the distribution box can be subjected to secondary cooling treatment after high-temperature early warning; and thirdly, the dust prevention and dust collection device is matched for use, so that the influence of dust on the heat dissipation of the distribution box is avoided, and the adhesion to equipment is also avoided.

Drawings

FIG. 1 is a schematic diagram of the structure of one embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is a schematic front view of the structure of FIG. 1;

FIG. 4 is a schematic right sectional view of FIG. 3;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

FIG. 6 is an enlarged view of the structure at C in FIG. 4;

FIG. 7 is a schematic view of the interior of the cabinet of FIG. 1;

fig. 8 is a schematic view of the combination of the cleaning mechanism and the first dust collecting mechanism of fig. 7.

Reference numerals: 1. a distribution box body; 101. a carrying cabinet; 102. a box door; 103. an observation mirror; 104. an air exhaust through groove; 2. an early warning mechanism; 21. a straight cylinder; 22. a heat conductive metal round block; 23. an upper cover; 24. a water temperature alarm; 25. a spray head; 26. a water injection pipe; 3. a heat dissipation mechanism; 31. a heat dissipation box; 32. a dust screen a; 33. a fan blade; 34. a cleaning brush a; 35. a drive motor; 4. a cleaning mechanism; 41. a worm wheel a; 42. a worm a; 43. a connecting rod; 44. a worm wheel b; 45. a worm b; 46. cleaning the assembly; 461. positioning blocks; 462. a reciprocating screw rod; 463. fixing a sleeve; 464. connecting blocks; 465. b, cleaning a brush; 466. a longitudinal through groove; 467. a moving block; 468. a dust cover; 5. a first dust collecting mechanism; 51. a longitudinal bar; 52. a movable sleeve; 53. fixing the rod; 54. erecting the box; 55. a spring; 56. a connecting pipe; 6. a second dust collecting mechanism; 61. a dust collection box; 62. a dust screen b; 63. a centrifugal blade; 64. a belt pulley a; 65. a belt pulley b; 66. a U-shaped pipe; 7. and a dust screen c.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1, fig. 3, and fig. 4, the present invention provides a technical solution: the distribution box comprises a distribution box body 1, the distribution box body 1 comprises a carrying cabinet 101, a box door 102 is installed on the front side of the carrying cabinet 101 through a hinge, an observation mirror 103 is arranged on the box door 102, a plurality of air exhaust through grooves 104 arranged on the front wall of the box door 102 are arranged below the observation mirror 103, an early warning mechanism 2 for performing overheating early warning on the distribution box and performing first cooling on the distribution box is arranged above the carrying cabinet 101, the early warning mechanism 2 comprises a straight barrel 21 arranged on the upper end surface of the carrying cabinet 101, a heat conduction metal round block 22 is fixed in the straight barrel 21, an upper cover 23 is arranged on the upper end surface of the straight barrel 21, a water temperature alarm 24 is arranged above the upper cover 23, the lower end part of the water temperature alarm 24 penetrates through the upper cover 23 and extends downwards to a length lower than the horizontal plane in the straight barrel 21, a vertical pipe is installed at the upper end of the upper cover 23 and is communicated with the straight barrel 21, a spray nozzle 25 is installed at the upper end of the vertical pipe, a water injection pipe 26 installed on the upper cover 23 is arranged on the rear side of the water temperature alarm 24, and water injection pipe 26 is linked together with straight section of thick bamboo 21, the sealing plug is installed to the upper end of water injection pipe 26, the rear side of early warning mechanism 2 is equipped with the heat dissipation mechanism 3 that carries out the second cooling to the block terminal, the left and right sides wall of early warning mechanism 2 all installs and carries out radiating dust screen c7 to the heat, two dust screen c 7's periphery is equipped with clearance mechanism 4 that clears up its dust jointly, be equipped with first dust collection mechanism 5 between two dust screen c7, be equipped with the second dust collection mechanism 6 that collects the dust jointly between two first dust collection mechanisms 5.

One specific application of this embodiment is: at first through opening the sealing plug, water can pour into straight section of thick bamboo 21 into through water injection pipe 26 in, and flow into heat conduction metal circle piece 22 upper end, the heat that produces in carrying thing cabinet 101 can be conducted by heat conduction metal circle piece 22, the heat of conduction can be cooled down through water, and then can make the temperature in carrying thing cabinet 101 reduce, when water reaches the settlement temperature that surpasss water temperature alarm 24, water temperature alarm 24 can buzzing warning, when the temperature is higher, can produce the atomizing, can disperse through shower nozzle 25 after the atomizing, further can carry out the dust fall to peripheral ash that floats, and simultaneously, the heat can outwards spill over through dust screen c 7.

Referring to fig. 1, fig. 2, fig. 4, fig. 5, fig. 6, fig. 7, and fig. 8, the present invention, in combination with the above technical solution, further has the following features: the heat dissipation mechanism 3 comprises a heat dissipation box 31 fixed at the rear end of the object carrying cabinet 101, a plurality of air inlet through holes are arranged at the rear end of the heat dissipation box 31, a through groove arranged at the rear end of the object carrying cabinet 101 is arranged in the heat dissipation box 31, a dust screen a32 is arranged in the through groove, a cleaning brush a34 is arranged at the rear side of the dust screen a32, the front end of the cleaning brush a34 is contacted with the dust screen a32, a rotating rod a is centrifugally fixed at the rear end of the cleaning brush a34 and is rotatably connected with the inner rear wall of the heat dissipation box 31, a fan blade 33 is fixed on the rotating rod a in a sleeving manner, a driving motor 35 is arranged at the rear side of the heat dissipation box 31, the output end of the driving motor 35 is fixedly connected with the rotating rod a, the cleaning mechanism 4 comprises a worm wheel a41 fixedly sleeved on the rotating rod a, the lower end of the worm wheel a41 is engaged with a42, connecting rods 43 are fixed at the left and right ends of worm a42, and outer ends of the two connecting rods 43 extend to the outer side of the heat dissipation box 31 through bearings, a worm wheel b44 is fixed at the outer end of the connecting rod 43, a worm b45 is engaged and connected at the lower end of the worm wheel b44, a cleaning assembly 46 is arranged at the front side of the worm b45, the cleaning assembly 46 comprises positioning blocks 461 arranged at the front side and the rear side of a dustproof net c7, the positioning blocks 461 are fixedly connected with the side wall of the loading cabinet 101, a reciprocating lead screw 462 is rotatably connected between the two positioning blocks 461, the rear end of the reciprocating lead screw 462 is fixedly connected with a worm b45, a fixing sleeve 463 is sleeved on the reciprocating lead screw 462 through a ball nut, a connecting block 464 is fixed at the inner end of the fixing sleeve 463, a cleaning brush b465 is fixed at the inner end of the connecting block 464, the inner end of the cleaning brush b465 is contacted with the outer end of the dustproof net c7, the cleaning assembly 46 comprises a longitudinal through groove 466 arranged on the side wall of the loading cabinet 101, a moving block 467 is movably arranged in the longitudinal through groove 466, the moving block 467 is fixedly connected with the upper end of the cleaning brush 465, a dustproof cover 468 arranged on the side wall of the loading cabinet 101 is arranged outside the longitudinal through groove 466, the first dust collecting mechanism 5 comprises a vertical rod 51 fixed in the object carrying cabinet 101, a movable sleeve 52 is movably sleeved on the vertical rod 51, a fixed rod 53 is fixed at the lower end of the movable sleeve 52, the front end of the fixed rod 53 is contacted with the rear end of a movable block 467, a vertical box 54 is fixed at the lower end of the fixed rod 53, the outer end of the vertical box 54 is contacted with the inner end of a dust screen c7, a spring 55 sleeved on the vertical rod 51 is fixed between the movable sleeve 52 and the inner rear wall of the object carrying cabinet 101, a connecting pipe 56 communicated with the inner end of the spring 55, the second dust collecting mechanism 6 comprises a dust collecting box 61 fixed at the upper end of a radiating box 31, a plurality of air exhaust through holes are arranged at the rear end of the dust collecting box 61, a cabinet door is arranged on the right side wall of the dust collecting box 61, a dust screen b62 vertically arranged in the dust collecting box 61, a centrifugal blade 63 is arranged at the rear side of the dust screen b62, a rotating rod b is fixed at the rear end of the centrifugal blade 63, and the rotating rod b extends to the outer side of the dust collecting box 61 through a bearing, the rear end of bull stick b is fixed with belt pulley a64, belt pulley a 64's below is connected with belt pulley b65 through belt drive, and belt pulley b65 cover is established and is fixed in on the output shaft of driving motor 35, second dust collection mechanism 6 still includes the fixed U type pipe 66 in dust collection box 61 upper end, and the one end of U type pipe 66 is linked together with dust collection box 61, and the other end of U type pipe 66 extends to in carrying thing cabinet 101, the other end of dust collection box 61 is connected with connecting pipe 56 through external hose and external tee bend, a plurality of dust absorption through-holes have been seted up to the outer end of vertical box 54, the cleaning brush is installed to the outer end of vertical box 54.

The concrete application is as follows: after the buzzer gives an early warning, the driving motor 35 is started to work, the output shaft of the driving motor 35 drives the belt pulley b65 and the rotating rod a to rotate, the rotation of the rotating rod a can enable the fan blades 33, the worm wheel a41 and the cleaning brush a34 to rotate, the rotation of the fan blades 33 can accelerate air circulation, further accelerate heat to diffuse outwards through the dust screen c7 and the air exhaust through groove 104, further secondary heat dissipation to the storage cabinet 101 can be formed, the rotation of the cleaning brush a34 can enable the dust screen a32 to be cleaned, and blockage of the dust screen a32 can be avoided, meanwhile, the rotation of the worm wheel a41 can enable the worm a42 to rotate, the worm a42 can drive the connecting rod 43 and the worm wheel b44 to rotate, the rotation of the worm b45 of the worm wheel b44 can enable the reciprocating lead screw 462 to rotate, further, the moving block 463 can move back and forth through the limiting blocks 464, the cleaning brush b465, the longitudinal through grooves 466 and 467, furthermore, the cleaning brush b465 can clean the outer end of the dust screen c7 to prevent external dust from blocking the dust screen c7, when the moving block 467 moves backwards, the moving sleeve 52 can drive the fixed rod 53 and the vertical box 54 to move backwards and can extrude the spring 55, when the moving block 467 moves forwards, the springback of the spring 55 can push the moving sleeve 52 to move forwards, so that the vertical box 54 can move forwards and backwards, the cleaning brush can clean the dust at the inner end of the dust screen c7 and fine particles drilled into the screen hole at the outer end of the cleaning dust screen c7, the rotation of the belt pulley b65 can rotate the belt pulley a64, the belt pulley a64 can drive the rotating rod b and the centrifugal blade 63 to rotate, the rotation of the centrifugal blade 63 can generate suction force, so that the dust through holes can suck the cleaned dust, and the sucked dust can finally enter the dust collection box 61 to be collected, meanwhile, the shielding of the dust screen b62 prevents dust from contacting the centrifugal blade 63.

In the foregoing, exemplary embodiments of the proposed solution have been described in detail with reference to preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above, and that many combinations of the various features and structures presented in the present invention may be made without departing from the inventive concept, the scope of which is defined by the appended claims.

Claims

1. The utility model provides a block terminal with overheated early warning function, includes distribution box (1), distribution box (1) is including carrying thing cabinet (101), chamber door (102), sight glass (103), logical groove (104) of airing exhaust, its characterized in that: the dust collection device is characterized in that an early warning mechanism (2) for carrying out overheating early warning on the distribution box and carrying out primary cooling on the distribution box is arranged above the carrying cabinet (101), a heat dissipation mechanism (3) for carrying out secondary cooling on the distribution box is arranged on the rear side of the early warning mechanism (2), dust screens c (7) for dissipating heat are arranged on the left side wall and the right side wall of the early warning mechanism (2), a cleaning mechanism (4) for cleaning dust of the dust screens c (7) is jointly arranged on the peripheries of the two dust screens c (7), a first dust collection mechanism (5) is arranged between the two dust screens c (7), a second dust collection mechanism (6) for collecting the dust is jointly arranged between the two first dust collection mechanisms (5), the early warning mechanism (2) comprises a carrying cabinet (101), a straight cylinder (21) is arranged on the upper end face of the carrying cabinet, a heat conduction metal round block (22) is fixedly arranged in the straight cylinder (21), an upper cover (23) is arranged on the upper end face of the straight cylinder (21), a water temperature alarm (24) is arranged above the upper cover (23), the lower end part of the water temperature alarm (24) penetrates through the upper cover (23) and the downward extension length of the water temperature alarm is lower than the horizontal plane in the straight cylinder (21), a vertical pipe is installed at the upper end of the upper cover (23) and communicated with the straight cylinder (21), a spray head (25) is installed at the upper end of the vertical pipe, a water injection pipe (26) installed on the upper cover (23) is arranged at the rear side of the water temperature alarm (24), the water injection pipe (26) is communicated with the straight cylinder (21), a sealing plug is installed at the upper end of the water injection pipe (26), the heat dissipation mechanism (3) comprises a heat dissipation box (31) fixed at the rear end of the object carrying cabinet (101), a through groove arranged at the rear end of the object carrying cabinet (101) is arranged in the heat dissipation box (31), a dust screen a (32) is installed in the through groove, and a cleaning brush a (34) is arranged at the rear side of the dust screen a (32), and the front end of the cleaning brush a (34) contacts with the dust screen a (32), the rear end of the cleaning brush a (34) is centrifugally fixed with a rotating rod a, the rotating rod a is rotatably connected with the inner rear wall of the heat dissipation box (31), fan blades (33) are fixedly sleeved on the rotating rod a, a driving motor (35) is arranged on the rear side of the heat dissipation box (31), the output end of the driving motor (35) is fixedly connected with the rotating rod a, the cleaning mechanism (4) comprises a worm wheel a (41) fixedly sleeved on the rotating rod a, the lower end of the worm wheel a (41) is meshed with a worm a (42), the left end and the right end of the worm a (42) are both fixed with connecting rods (43), the outer ends of the connecting rods (43) extend to the outer side of the heat dissipation box (31) through bearings, the outer end of the connecting rod (43) is fixed with a worm wheel b (44), and the lower end of the worm wheel b (44) is meshed with a b (45), a cleaning assembly (46) is arranged on the front side of the worm b (45), the cleaning assembly (46) comprises positioning blocks (461) arranged on the front side and the rear side of a dustproof net c (7), the positioning blocks (461) are fixedly connected with the side wall of the object carrying cabinet (101), a reciprocating lead screw (462) is rotatably connected between the two positioning blocks (461), the rear end of the reciprocating lead screw (462) is fixedly connected with the worm b (45), a fixing sleeve (463) is sleeved on the reciprocating lead screw (462) through a ball nut, a connecting block (464) is fixed at the inner end of the fixing sleeve (463), a cleaning brush b (465) is fixed at the inner end of the connecting block (464), the inner end of the cleaning brush b (465) is in contact with the outer end of the dustproof net c (7), the cleaning assembly (46) comprises a longitudinal through groove (466) arranged on the side wall of the object carrying cabinet (101), and a movable moving block (467) is arranged in the longitudinal through groove (466), the moving block (467) is fixedly connected with the upper end of the cleaning brush b (465), a dust cover (468) arranged on the side wall of the carrying cabinet (101) is arranged on the outer side of the longitudinal through groove (466), the first dust collecting mechanism (5) comprises a longitudinal rod (51) fixed in the carrying cabinet (101), a movable sleeve (52) is movably sleeved on the longitudinal rod (51), a fixed rod (53) is fixed at the lower end of the movable sleeve (52), the front end of the fixed rod (53) is in contact with the rear end of the moving block (467), a vertical box (54) is fixed at the lower end of the fixed rod (53), the outer end of the vertical box (54) is in contact with the inner end of the dust screen c (7), a spring (55) sleeved on the longitudinal rod (51) is fixed between the movable sleeve (52) and the inner rear wall of the carrying cabinet (101), a connecting pipe (56) communicated with the inner end of the spring (55) is fixed, and the second dust collecting mechanism (6) comprises a dust collecting box (61) fixed on the heat dissipation box (31), a dust screen b (62) which is vertically arranged is fixed in the dust collection box (61), a centrifugal blade (63) is arranged at the rear side of the dust screen b (62), a rotating rod b is fixed at the rear end of the centrifugal blade (63), the rear end of the rotating rod b extends to the outer side of the dust collection box (61) through a bearing, a belt pulley a (64) is fixed at the rear end of the rotating rod b, a belt pulley b (65) is connected below the belt pulley a (64) through belt transmission, and the belt pulley b (65) is sleeved and fixed on the output shaft of the driving motor (35), the second dust collecting mechanism (6) also comprises a U-shaped pipe (66) fixed at the upper end of the dust collecting box (61), one end of the U-shaped pipe (66) is communicated with the dust collection box (61), the other end of the U-shaped pipe (66) extends into the carrying cabinet (101), the other end of the dust collection box (61) is connected with a connecting pipe (56) through an external hose and an external tee pipe.

2. The distribution box with the overheat early warning function according to claim 1, wherein: the outer end of the vertical box (54) is provided with a plurality of dust suction through holes.