CN220628530U

CN220628530U - Power distribution cabinet with heat dissipation wind flow distribution plate

Info

Publication number: CN220628530U
Application number: CN202321982697.8U
Authority: CN
Inventors: 朱清军
Original assignee: Jiaobei Qingjun Stationery Store In Jiaocheng District Ningde City
Current assignee: Jiaobei Qingjun Stationery Store In Jiaocheng District Ningde City
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2024-03-19
Anticipated expiration: 2033-07-26

Abstract

The utility model discloses a power distribution cabinet with a heat dissipation air flow distribution plate, which comprises a power distribution cabinet box with an opening at the front side, wherein a box door is rotatably arranged at the left side of the power distribution cabinet box, an exhaust pipe communicated with the inside of the power distribution cabinet box is embedded and fixed at the top of the power distribution cabinet box, a first dust screen is fixedly connected to the top end of the exhaust pipe, and the arrangement of the first dust screen can effectively reduce the condition that dust enters the inside of the power distribution cabinet box through the exhaust pipe. According to the utility model, through a series of structural arrangement, gas can be extracted and split to be blown into the inside of the power distribution cabinet, the heat gas flowing speed in the inside of the power distribution cabinet is accelerated, the heat dissipation effect is improved, and the two box-shaped filter screens are arranged, so that when one box-shaped filter screen is blocked, the positions can be automatically and timely exchanged, the personnel can be reminded to clean, the cleaning timeliness and the ventilation heat dissipation effect are improved, the shutdown operation is not needed during cleaning, the shutdown waiting time is saved, and the working efficiency is improved.

Description

Power distribution cabinet with heat dissipation wind flow distribution plate

Technical Field

The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with a heat dissipation wind flow distribution plate.

Background

The power distribution cabinet comprises a power distribution cabinet body, wherein a mounting plate and an electric device are arranged in the power distribution cabinet body, in use, the electric device can generate heat to heat the electric device, and a ventilation device is connected with the power distribution cabinet body and is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively arranged on the upper side and the lower side of the power distribution cabinet body, so that heat is taken away by heat dissipation airflow through the inside of the power distribution cabinet body, and the effect of cooling is achieved; among the prior art, at the internal distribution part that does not have the heat dissipation wind flow of switch board, can not control the wind flow when the operation, for this, application number: 201710036904.3 discloses a switch board with heat dissipation wind flow distribution board, including the switch board body, have mounting panel and electricity in the switch board body the inside, ventilation unit is connecting the switch board body in addition, and ventilation unit has air intake and air outlet, and the air intake sets up characterized by at switch board body downside right side: the power distribution cabinet comprises a power distribution cabinet body, an air inlet, a first air flow distribution plate, a second air flow distribution plate, a plurality of air flow distribution plates, a plurality of air flow guide plates and a plurality of air flow guide plates, wherein the first air flow distribution plate is arranged in front of the air inlet and obliquely faces the lower surface of the first air flow distribution plate; the power distribution cabinet has the advantages of being capable of controlling wind flow and convenient to use;

according to the power distribution cabinet with the heat dissipation air flow distribution plate disclosed by the patent, through the arrangement of the two air flow distribution plates matched with the plurality of small holes on the air flow distribution plate, air flow can be controlled for air entering the power distribution cabinet, and therefore the heat dissipation effect is improved; it still suffers from some drawbacks: because the air contains more dust impurity, its air intake department lacks the filtration that filters the dust of getting into and shelter from, causes a large amount of dust to enter into the switch board inside easily, although exist in prior art at the air intake installation filter screen for carry out filterable technique to the dust, but long-time use, pile up a large amount of dust on the filter screen easily and cause its jam, the mode of manual regular clearance in prior art, the clearance timeliness is lower, synthesize the above-mentioned condition, consequently we propose the switch board with heat dissipation wind flow distribution board.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a power distribution cabinet with a heat dissipation air flow distribution plate.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a switch board with heat dissipation wind flow distribution board, includes the switch board case that the front side set up for the opening, the left side of switch board case rotates installs the chamber door, the top of switch board case inlays and is fixed with the blast pipe that is linked together rather than inside, the top fixedly connected with first dust screen of blast pipe, the setting of first dust screen, can effectually reduce the dust and enter into the inside condition of switch board case through the blast pipe, the setting of blast pipe, be used for supplying the inside gaseous discharge of switch board case to outside, fixedly connected with two wind flow distribution boards between the both sides inner wall of switch board case, the wind flow distribution board slope setting of below, a plurality of branch flow holes have been seted up at the top of wind flow distribution board, wind flow distribution board and branch flow hole cooperate, can divide the gas that gets into, increase the inside blowing scope to the switch board case, improve the radiating effect, the bottom both sides of switch board case are all fixedly connected with supporting seat, the right side of the bottom of the power distribution cabinet box is fixedly connected with a round box which is provided with an opening, a supporting seat on the right side is fixedly sleeved on the round box, two supporting seats are used for supporting the whole device, a first embedded hole is formed in the inner wall of the bottom of the power distribution cabinet box, a fan is arranged in the first embedded hole, the fan can be arranged through the first embedded hole, a gas flow velocity detection mechanism which is communicated with the inside of the first embedded hole is fixedly connected to the inner wall of the bottom of the power distribution cabinet box, the gas flow velocity detection mechanism can be used for detecting the flowing gas flow velocity, an exchangeable filtering mechanism is arranged in the round box and can be used for filtering and shielding dust in the gas, a conical through hole is formed in the inner wall of the top of the round box, the bottom of the fan is an extraction end and is communicated with the conical through hole, the fan is arranged for extracting the outside gas, the bottom of the round box is embedded and fixed with an air inlet cover, the air inlet cover is communicated with the inside of the exchangeable filter mechanism, the bottom of the round box is fixedly connected with a driving motor and a PLC (programmable logic controller), the top end of an output shaft of the driving motor is fixedly connected with the bottom of the exchangeable filter mechanism, the driving motor is used for driving the exchangeable filter mechanism to rotate, and the driving motor, the exchangeable filter mechanism and the gas flow rate detection mechanism are electrically connected with the PLC.

Preferably, the gas flow rate detection mechanism comprises a conical cover fixedly connected to the inner wall of the bottom of the power distribution cabinet, a flow rate sensor is fixedly connected to the top of the conical cover, the flow rate sensor is electrically connected with the PLC, the top of the fan is an exhaust end and is communicated with the bottom of the conical cover, the flow rate sensor is used for detecting the flow rate of gas flowing through, and the detection principle is the prior art and is not explained herein.

Preferably, exchangeable formula filter mechanism is including rotating the circular supporting shoe of installing on the inner wall of round box top, the fixed slot has all been seted up to the bottom fixed connection of driving motor's output shaft top and circular supporting shoe, the fixed slot has all been seted up to the both sides of circular supporting shoe, the top of fixed slot, front side and rear side all establish to the opening, all magnetic attraction card is equipped with box-shaped filter screen on the inner wall of one side that two fixed slots are close to each other, support two box-shaped filter screens through the circular supporting shoe, the opening is all established to one side that two box-shaped filter screens kept away from each other, the bottom of box-shaped filter screen is the opening setting, all fixedly connected with pull rod on one side inner wall that two box-shaped filter screens are close to each other, the equal fixedly connected with pull ring of one end that two pull rods kept away from each other, accessible pull ring and pull rod pulling correspond box-shaped filter screen position move, two recesses have been seted up to the bottom of circular supporting shoe, fixedly connected with infrared signal receiver on the top inner wall of recess, inlay on the bottom inner wall of round box is equipped with infrared signal transmitter, infrared signal transmitter and two infrared signal receiver cooperate, infrared signal transmitter and infrared signal transmitter on the bottom inner wall, the infrared signal transmitter on the right side, the infrared signal receiver is aligned, infrared signal transmitter, the infrared signal receiver, the infrared signal transmitter, the principle that infrared signal receiver is kept away from both infrared signal receiver and the infrared signal receiver all have electrical connection to do the PLC.

Preferably, the first groove is formed in the inner wall of one side, close to each other, of the two fixing grooves, the first magnet is fixedly connected to the inner wall of one side, far away from the opening, of the first groove, the second magnet is fixedly connected to one side, close to each other, of the two box-shaped filter screens, one side, far away from the corresponding box-shaped filter screens, of the second magnet is movably clamped into the first groove and is adsorbed with the first magnet, and the fixing of the box-shaped filter screens can be achieved through the first magnet and the second magnet.

Preferably, the front side, the rear side, the top and the bottom of the round supporting block are respectively in movable contact with the front side inner wall, the rear side inner wall, the top inner wall and the bottom inner wall of the round box, the front side, the rear side and the top of the box-shaped filter screen are respectively in movable contact with the front side inner wall, the rear side inner wall and the top inner wall of the round box, and the inner diameter of the opening on the right side of the round box is larger than the distance between the front side and the rear side of the box-shaped filter screen.

Preferably, a second embedded hole is formed in the inner wall of the bottom of the round box, and the inner wall of the second embedded hole is fixedly connected with the outer side of the air inlet cover.

Preferably, a first circular hole is formed in the inner wall of the top of the circular box, a second circular hole is formed in the inner wall of the bottom of the circular box, a pin shaft is fixedly connected to the top of the circular supporting block, a first bearing is fixedly sleeved in the first circular hole, the inner side of an inner ring of the first bearing is fixedly connected with the outer side of the pin shaft, a second bearing is fixedly sleeved in the second circular hole, and the inner side of the inner ring of the second bearing is fixedly connected with the outer side of an output shaft of the driving motor.

Compared with the prior art, the utility model has the beneficial effects that:

1. the fan, the wind flow distribution plate and the plurality of flow distribution holes are matched, so that external gas can be extracted and distributed to blow and dissipate heat in the power distribution cabinet, the heat gas flowing speed in the power distribution cabinet is increased, and the heat dissipation effect is improved;

2. through the arrangement of the exchangeable filtering mechanism, dust in flowing gas can be filtered, the condition that the dust enters into the inside of the power distribution cabinet is reduced, and the gas flow speed detection mechanism, the PLC controller and the driving motor are matched, so that when one box-shaped filter screen is blocked, the position can be automatically and timely exchanged and personnel can be reminded, the cleaning timeliness and ventilation and heat dissipation stability are improved, and in addition, the two box-shaped filter screens are cleaned in an alternate position mode, personnel stop is not needed, the stop waiting time is saved, and the working efficiency is improved;

according to the utility model, through a series of structural arrangement, gas can be extracted and split to be blown into the inside of the power distribution cabinet, the heat gas flowing speed in the inside of the power distribution cabinet is accelerated, the heat dissipation effect is improved, and the two box-shaped filter screens are arranged, so that when one box-shaped filter screen is blocked, the positions can be automatically and timely exchanged, the personnel can be reminded to clean, the cleaning timeliness and the ventilation heat dissipation effect are improved, the shutdown operation is not needed during cleaning, the shutdown waiting time is saved, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of a power distribution cabinet with a heat dissipation air distribution plate according to the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an enlarged schematic view of the portion A in FIG. 2

In the figure: 100. a power distribution cabinet; 101. a wind flow distribution plate; 102. an exhaust pipe; 1. a blower; 2. a conical cover; 3. a flow rate sensor; 4. a round box; 5. a tapered through hole; 6. an air inlet cover; 7. a circular support block; 8. a box-shaped filter screen; 9. a pull rod; 10. a driving motor; 11. a PLC controller; 12. an infrared signal receiver; 13. an infrared signal emitter; 14. a groove; 15. a first insertion hole; 16. and a second magnet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-3, a power distribution cabinet with a heat dissipation air distribution plate comprises a power distribution cabinet box 100 with an opening at the front side, a box door is rotatably installed at the left side of the power distribution cabinet box 100, the opening of the power distribution cabinet box 100 is shielded by the box door, an exhaust pipe 102 communicated with the inside of the power distribution cabinet box 100 is embedded and fixed at the top of the power distribution cabinet box 100, a first mounting hole for fixedly mounting the exhaust pipe 102 is formed in the inner wall of the top of the power distribution cabinet box 100, a first dust screen is fixedly connected to the top of the exhaust pipe 102, the first dust screen is arranged, the condition that dust enters the power distribution cabinet box 100 through the exhaust pipe 102 can be effectively reduced, the exhaust pipe 102 is arranged for discharging air in the power distribution cabinet box 100 to the outside, two air distribution plates 101 are fixedly connected between the inner walls of the two sides of the power distribution cabinet box 100, the air distribution plates 101 positioned below are obliquely arranged, the top of the air flow distribution plate 101 is provided with a plurality of flow dividing holes, the air flow distribution plate 101 is matched with the flow dividing holes, the air flowing into the air flow distribution plate can be divided, the blowing range inside the power distribution cabinet 100 is enlarged, the heat dissipation effect is improved, the two sides of the bottom of the power distribution cabinet 100 are fixedly connected with supporting seats, the bottom of the power distribution cabinet 100 is fixedly connected with a round box 4 with an opening on the right side, the supporting seats on the right side are fixedly sleeved on the round box 4, the right side of the supporting seats on the right side are provided with second mounting holes with the opening on the bottom, the front side inner wall and the rear side inner wall of the second mounting holes are respectively fixedly connected with the front side and the rear side of the round box 4, the two supporting seats are used for supporting the whole device, the inner wall on the bottom of the power distribution cabinet 100 is provided with a first embedded hole 15, and the fan 1 is arranged in the first embedded hole 15;

the gas flow rate detection mechanism communicated with the inside of the first embedded hole 15 is fixedly connected to the inner wall of the bottom of the power distribution cabinet 100, wherein the gas flow rate detection mechanism comprises a conical cover 2 fixedly connected to the inner wall of the bottom of the power distribution cabinet 100, a flow rate sensor 3 is fixedly communicated with the top of the conical cover 2, the top of the fan 1 is an exhaust end and is communicated with the bottom of the conical cover 2, the flow rate sensor 3 is used for detecting the flow rate of gas flowing through, and the detection principle is the prior art and is not described herein;

the inside of the round box 4 is provided with an exchangeable filter mechanism, the exchangeable filter mechanism comprises a round supporting block 7 rotatably arranged on the inner wall of the top of the round box 4, wherein the front side, the rear side, the top and the bottom of the round supporting block 7 are respectively in movable contact with the inner wall of the front side, the inner wall of the rear side, the inner wall of the top and the inner wall of the bottom of the round box 4, a first round hole is formed in the inner wall of the top of the round box 4, a pin shaft is fixedly connected with the top of the round supporting block 7, a first bearing is fixedly sleeved in the first round hole, the inner side of an inner ring of the first bearing is fixedly connected with the outer side of the pin shaft, the first bearing is matched with the pin shaft to play the role of rotatably arranging the round supporting block 7, the bottom of the round box 4 is fixedly connected with a driving motor 10 and a PLC 11, the top end of an output shaft of the driving motor 10 is fixedly connected with the bottom of the round supporting block 7, a second round hole is formed in the inner wall of the bottom of the round box 4, the second circular hole is fixedly sleeved with a second bearing, the inner side of the inner ring of the second bearing is fixedly connected with the outer side of the output shaft of the driving motor 10, the second bearing has the effect of rotatably mounting the output shaft of the driving motor 10, the two sides of the circular supporting block 7 are provided with fixing grooves, the top, the front side and the rear side of the fixing grooves are all provided with openings, a box-shaped filter screen 8 is magnetically clamped on the inner wall of one side, which is close to each other, of the two fixing grooves, the front side, the rear side and the top of the box-shaped filter screen 8 are respectively in movable contact with the inner wall of the front side, the inner wall of the rear side and the inner wall of the top of the circular box 4, the inner diameter of the opening on the right side of the circular box 4 is larger than the distance between the front side and the rear side of the box-shaped filter screen 8, wherein the inner wall of one side, which is close to each other, of the two fixing grooves is provided with a first groove, the inner wall of one side, which is far from the opening of the first groove, is fixedly connected with a first magnet, the two box-shaped filter screens 8 are fixedly connected with a second magnet 16 on one side close to each other, one side, far away from the corresponding box-shaped filter screen 8, of the second magnet 16 is movably clamped into the first groove and is adsorbed with the first magnet, the fixing of the box-shaped filter screen 8 can be quickly realized through the first magnet and the second magnet 16, the two box-shaped filter screens 8 are supported through the round supporting block 7, the two box-shaped filter screens 8 are provided with openings on one side far away from each other, the bottom of the box-shaped filter screen 8 is provided with the openings, pull rods 9 are fixedly connected to the inner walls of one side, close to each other, of the two box-shaped filter screens 8, pull rings are fixedly connected to one ends, far away from each other, of the two pull rods 9, of the corresponding box-shaped filter screens 8 can be pulled to move through the pull rings and the pull rods 9, the bottom of the round supporting block 7 is provided with two grooves 14, the inner walls of the top of the grooves 14 are fixedly connected with infrared signal receivers 12, an infrared signal emitter 13 is embedded and fixed on the inner wall of the bottom of the round box 4, the infrared signal emitter 13 is matched with the two infrared signal receivers 12, the infrared signal receiver 12 on the right side is aligned with the infrared signal emitter 13, the infrared signal emitter 13 emits signals, the principle that the infrared signal receiver 12 receives signals is the prior art, which is not described herein, the flow rate sensor 3 and the two infrared signal receivers 12 are electrically connected with the PLC 11, the rear side of the PLC 11 is fixedly and electrically connected with an audible and visual alarm, the audible and visual alarm is used for audible and visual alarm reminding personnel, and the principle that the PLC 11 receives the signals of the two infrared signal receivers 12 and the flow rate sensor 3 to control the driving motor 10 and the audible and visual alarm is the prior art, which is not described herein;

the bottom of the fan 1 is an extraction end and is communicated with the conical through hole 5, the fan 1 is arranged and used for extracting external gas, the bottom of the round box 4 is embedded and fixed with the air inlet cover 6, a second embedded hole is formed in the bottom inner wall of the round box 4, the inner wall of the second embedded hole is fixedly connected with the outer side of the air inlet cover 6, and the air inlet cover 6 is communicated with the inside of the left box-shaped filter screen 8.

Working principle: when the power distribution cabinet is used, in the working process of the power distribution cabinet, the fan 1 can be started, the fan 1 sequentially extracts external gas through the conical through hole 5, the box-shaped filter screen 8 on the left side and the air inlet hood 6, the extracted gas passes through the box-shaped filter screen 8 on the left side and is sequentially discharged into the power distribution cabinet 100 through the conical hood 2 and the flow rate sensor 3, the entering gas blows the inside of the power distribution cabinet 100 through the plurality of flow dividing holes on the lower air flow distribution plate 101, the flow speed of the gas in the power distribution cabinet 100 is accelerated under the blowing of the gas, the gas in the power distribution cabinet 100 is discharged to the outside through the plurality of flow dividing holes on the upper air flow distribution plate 101 and the air outlet pipe 102, and the flow speed of the heat gas in the power distribution cabinet 100 is accelerated by the mode of extracting and dividing the external gas to the inside of the power distribution cabinet 100, so that the heat dissipation effect is improved;

at this time, the left box-shaped filter screen 8 filters dust impurities in the flowing gas and shields the dust impurities in the flowing gas, meanwhile, the flow rate sensor 3 detects the flowing gas flow rate and transmits the detected gas flow rate value to the PLC 11, along with the filtering, the left box-shaped filter screen 8 can accumulate more dust impurities and further cause the blocking of the left box-shaped filter screen 8, when the flow rate sensor 3 detects that the flow rate is lower than a preset value, the left box-shaped filter screen 8 is proved to be blocked, at this time, the PLC 11 controls the driving motor 10 to be started, the output shaft of the driving motor 10 drives the circular supporting block 7 to rotate, the circular supporting block 7 drives the two box-shaped filter screens 8 to rotate, the circular supporting block 7 also drives the two infrared signal receivers 12 to rotate, when the left infrared signal receivers 12 rotate to be aligned with the infrared signal transmitters 13, at this time, the left box-shaped filter screen 8 rotates to the right, the right box-shaped filter screen 8 rotates to the left, the box-shaped filter screen 8 which rotates to the left continuously filters the gas flowing through, the infrared signal receiver 12 positioned at the right transmits the signal to the PLC controller 11, the PLC controller 11 controls the driving motor 10 to be closed, meanwhile, the PLC controller 11 also controls the audible and visual alarm to send out audible and visual alarm to remind personnel, the personnel can pull the pull ring positioned at the right to drive the box-shaped filter screen 8 positioned at the right to move out of the round box 4 through the pull rod 9, the box-shaped filter screen 8 positioned at the right drives the corresponding second magnet 16 to be separated from the first magnet, the removed box-shaped filter screen 8 can be cleaned, the box-shaped filter screen 8 can be magnetically sucked and fixed in the fixed groove positioned at the right after cleaning, when the flow velocity sensor 3 detects that the flow velocity is lower than the preset value again, the PLC controller 11 controls the driving motor 10 to turn on again, so that the box-shaped filter screen 8 located on the left side rotates to the right side, the box-shaped filter screen 8 on the right side rotates again to the left side to continue the filtering operation, and the box-shaped filter screen 8 located on the right side at this time can be cleaned in the same manner as above, and the cleaning is performed by cleaning the alternative positions of the two box-shaped filter screens 8 without stopping the machine by personnel, so that the waiting time of the machine is saved, the working efficiency is improved, and the cleaning timeliness and the ventilation and heat dissipation stability are improved in a manner that the blocking of one box-shaped filter screen 8 occurs and the personnel is reminded.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a switch board with cooling air flow distribution plate, is including switch board case (100) that the front side set up for the opening, the left side rotation of switch board case (100) is installed the chamber door, a serial communication port, the top of switch board case (100) inlays and is fixed with blast pipe (102) rather than inside being linked together, the top fixedly connected with first dust screen of blast pipe (102), fixedly connected with two air flow distribution plates (101) between the both sides inner wall of switch board case (100), be located the slope of air flow distribution plate (101) of below and set up, a plurality of branch flow holes have been seted up at the top of air flow distribution plate (101), the bottom both sides of switch board case (100) all fixedly connected with supporting seat, the bottom fixedly connected with right side of switch board case (100) is round box (4) that the opening set up, the supporting seat fixed cover on round box (4) on the right side, set up first embedded hole (15) on the bottom inner wall of switch board case (100), fan (1) are installed to first embedded hole (15), fixedly connected with on the bottom inner wall of switch board (100) and first embedded hole (5) are equipped with air flow rate detection mechanism (5) and are connected with taper-shaped through-hole (5) on the bottom of switch board (5), the air inlet hood (6) is communicated with the inside of the exchangeable filtering mechanism, the bottom of the round box (4) is fixedly connected with a driving motor (10) and a PLC (programmable logic controller) (11), the top end of an output shaft of the driving motor (10) is fixedly connected with the bottom of the exchangeable filtering mechanism, and the driving motor (10), the exchangeable filtering mechanism and the gas flow rate detecting mechanism are electrically connected with the PLC (11).

2. The power distribution cabinet with the heat dissipation wind flow distribution plate according to claim 1, wherein the gas flow velocity detection mechanism comprises a conical cover (2) fixedly connected to the inner wall of the bottom of the power distribution cabinet box (100), a flow velocity sensor (3) is fixedly connected to the top of the conical cover (2), the flow velocity sensor (3) is electrically connected with a PLC (programmable logic controller) 11, and the top of the fan (1) is an exhaust end and is communicated with the bottom of the conical cover (2).

3. The power distribution cabinet with the heat dissipation wind flow distribution plate according to claim 2, wherein the exchangeable filtering mechanism comprises a round supporting block (7) rotatably installed on the inner wall of the top of a round box (4), the top end of an output shaft of a driving motor (10) is fixedly connected with the bottom of the round supporting block (7), two sides of the round supporting block (7) are respectively provided with a fixed groove, the top, the front side and the rear side of the fixed groove are respectively provided with an opening, one side inner wall of the two fixed grooves close to each other is respectively provided with a box-shaped filter screen (8), one side of the two box-shaped filter screens (8) far away from each other is respectively provided with an opening, the bottom of the box-shaped filter screens (8) is respectively provided with an opening, one side inner wall of the two box-shaped filter screens (8) close to each other is respectively fixedly connected with a pull rod (9), one end of the two pull rods (9) far away from each other is respectively fixedly connected with a pull ring, the bottom of the round supporting block (7) is respectively provided with two grooves (14), the top inner wall of the grooves (14) is respectively provided with an infrared signal receiver (12), the bottom inner wall of the round box (4) is respectively provided with an infrared signal receiver (13) is respectively embedded and fixed on the bottom inner walls of the round box (4) and is respectively provided with an infrared signal receiver (12), the infrared signal receiver (13) and the infrared signal receiver (12) are respectively connected with the infrared signal receiver (12) and the infrared signal receiver (11), the rear side of the PLC (11) is fixed and electrically connected with an audible and visual alarm.

4. A power distribution cabinet with a heat dissipation wind flow distribution plate according to claim 3, characterized in that the inner walls of one side of the two fixing grooves, which are close to each other, are respectively provided with a first groove, the inner walls of one side of the first groove, which is far away from the opening of the first groove, are respectively fixedly connected with a first magnet, one side of the two box-shaped filter screens (8), which are close to each other, are respectively fixedly connected with a second magnet (16), and one side of the second magnet (16), which is far away from the corresponding box-shaped filter screen (8), is movably clamped into the first groove and is adsorbed with the first magnets.

5. A power distribution cabinet with a heat dissipation wind distribution plate according to claim 3, characterized in that the front side, the rear side, the top and the bottom of the circular supporting block (7) are respectively in movable contact with the front side inner wall, the rear side inner wall, the top inner wall and the bottom inner wall of the circular box (4), the front side, the rear side and the top of the box-shaped filter screen (8) are respectively in movable contact with the front side inner wall, the rear side inner wall and the top inner wall of the circular box (4), and the right opening inner diameter of the circular box (4) is larger than the distance between the front side and the rear side of the box-shaped filter screen (8).

6. The power distribution cabinet with the heat dissipation air distribution plate according to claim 1, wherein a second embedded hole is formed in the inner wall of the bottom of the round box (4), and the inner wall of the second embedded hole is fixedly connected with the outer side of the air inlet cover (6).

7. The power distribution cabinet with the heat dissipation wind flow distribution plate according to claim 3, wherein a first circular hole is formed in the inner wall of the top of the circular box (4), a second circular hole is formed in the inner wall of the bottom of the circular box (4), a pin shaft is fixedly connected to the top of the circular supporting block (7), a first bearing is fixedly sleeved in the first circular hole, the inner side of an inner ring of the first bearing is fixedly connected with the outer side of the pin shaft, a second bearing is fixedly sleeved in the second circular hole, and the inner side of the inner ring of the second bearing is fixedly connected with the outer side of an output shaft of the driving motor (10).