CN117595112A - Smart power grids switch board - Google Patents

Abstract

The utility model relates to a switch board field specifically discloses a smart power grids switch board, and it includes the cabinet body, air inlet and gas outlet have been seted up on the cabinet body, still include a plurality of radiators, each the radiator homoenergetic is moved to self just to the gas outlet, one of them the radiator just is when the gas outlet, remaining radiator and gas outlet stagger. The application has the effect of reducing the use influence on the electric device when the radiator is cleaned.

Description

Smart power grids switch board

Technical Field

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

Background

The intelligent power grid power distribution cabinet is an important device applied to an intelligent power grid system. The intelligent power distribution system is a core component of a low-voltage power distribution link in the intelligent power grid system and is used for distributing, protecting and monitoring electric energy. The intelligent power grid power distribution cabinet realizes intelligent and automatic management of a power distribution network by integrating advanced sensors, controllers and communication technologies.

In the related art, the intelligent power grid power distribution cabinet is provided with a plurality of components, and the components can generate heat in the working process, so that the intelligent power grid power distribution cabinet is often provided with a radiator so as to reduce the heat in the cabinet. In order to ensure the heat dissipation effect of the radiator, the radiator needs to be cleaned regularly. If the radiator is not cleaned for a long time, a large amount of dust and sundries are easy to accumulate on the radiator, so that the radiating effect is affected, the temperature of components in the cabinet body is too high, and finally, the components are broken down or fire and other safety accidents are caused.

When the radiator is cleaned, the radiator is required to be removed and cleaned in order to ensure that the radiator has a better cleaning effect and prevent dust from falling onto components. The power is required to be cut off before the radiator is dismantled, and the power distribution cabinet with the radiator is dismantled, so that the power is prevented from being electrified as much as possible, and the cabinet body temperature is prevented from being too high. When the radiator is cleaned, the power utilization devices connected to the power distribution cabinet lose power and cannot work, so that the use is affected, and the radiator is to be improved.

Disclosure of Invention

In order to reduce the use influence to power consumption device when the radiator clearance, this application provides a smart power grids switch board.

The application provides a smart power grid switch board adopts following technical scheme:

the utility model provides a smart power grids switch board, includes the cabinet body, air inlet and gas outlet have been seted up on the cabinet body, still include a plurality of radiators, each the radiator all can remove to self just to the gas outlet, one of them when the radiator just to the gas outlet, other the radiator staggers with the gas outlet.

By adopting the technical scheme, after dust is accumulated in one radiator due to long-term use, the radiator for accumulating the dust and the air outlet are enabled to be aligned by moving the other radiator to the air outlet. The dust-accumulated radiator is then removed and cleaned. Through setting up a plurality of radiators, set up reserve radiator promptly for one of them radiator washs, can have other radiators to dispel the heat, makes the switch board can continue the operation in order to supply power for the power consumption device. Meanwhile, a special power supply for supplying power to the radiator can be added, so that the power distribution cabinet does not need to be powered off. By the arrangement, power failure of the power distribution cabinet and power failure of the power utilization device are avoided as much as possible, and the influence on the power utilization device during cleaning of the radiator is reduced.

Optionally, the cabinet further comprises a rotating mechanism arranged above the cabinet body, the rotating mechanism comprises a rotating seat and a rotating driving source for driving the rotating seat to rotate, two radiators are arranged on the rotating seat and are respectively arranged on two sides of the rotating seat.

Through adopting above-mentioned technical scheme, after one of them radiator used for a long time, through rotating the rotation seat of drive source drive to make the radiator that sets up on rotating the seat together rotate, thereby rotate the radiator that uses for a long time to the direction of keeping away from the gas outlet, and make another radiator rotate to align with the gas outlet. Thus, the two radiators can be replaced and used, and the radiator has simple structure and convenient operation.

Optionally, the air guide pipe comprises an air inlet section, an air outlet section and a bending section for connecting the air inlet section and the air outlet section, the extending directions of the air inlet section and the air outlet section are staggered, the two radiators are respectively arranged in the air inlet sections of different air guide pipes, and the rotating seat can rotate to align the air inlet section and the air outlet of any air guide pipe.

Through adopting above-mentioned technical scheme, the radiator is taken out the internal high temperature air of cabinet to the air inlet section in, and the bending section is directed high temperature air to make high temperature air get into in the air-out section, and finally by the air-out section discharge. Compared with the radiator which directly faces the rotating seat, namely the high-temperature air flow formed by the radiator directly impacts on the rotating seat, the high-temperature air can be guided through the induced air bent pipe, so that the high-temperature air is prevented from flowing back as much as possible, the subsequent high-temperature air discharge is influenced, and the temperature in the cabinet body is reduced.

Optionally, still include dust collecting mechanism, dust collecting mechanism includes U type pipe, hinders dirt piece and two dust collecting boxes, the both ends of U type pipe are connected respectively on different air-out sections, two the dust collecting box is connected respectively in the one side that the air-out section was kept away from to different curved sections, set up the dust inlet that is linked together with adjacent dust collecting box inner chamber on the curved section, the dust inlet is towards the air-out section, hinder the dirt piece and slide and set up on dust collecting box, rotation seat and curved section, hinder the dirt piece and be used for shielding one of them dust inlet, one of them when the air inlet section and the gas outlet of induced air return bend are aligned, hinder the dirt piece and remove the dust inlet on another induced air return bend and open, hinder the dirt piece to shield the dust inlet on the induced air return bend that aligns with the gas outlet, set up the dust outlet that is linked together with self inner chamber on the terminal surface of the dust collecting box dorsad air-out section.

Through adopting above-mentioned technical scheme, after two air-out sections of U type union coupling, shield the dust inlet on the induced air return bend that aligns with the air outlet through the dust blocking piece to make another dust inlet open. The high-temperature air in the induced air bent pipe aligned with the air outlet enters the air outlet section of the other induced air bent pipe under the guidance of the U-shaped pipe, enters the dust collecting box through the dust inlet on the bent section, and the dust carried in the high-temperature air can also enter the dust collecting box together and is finally discharged from the dust outlet. By moving the dust blocking member, even if the radiator is switched, the dust inlet on the induced air bent pipe aligned with the air outlet can be kept closed, and the other dust inlet can be kept open.

By the arrangement, dust is effectively prevented from entering the induced air bent pipe, and dust carried by high-temperature air is not easy to gather in the induced air bent pipe.

Optionally, a box cover screen plate for opening and closing the dust outlet is arranged on the dust collecting box.

By adopting the technical scheme, the box cover screen plate effectively blocks dust under the condition that high-temperature air can be normally discharged, so that the dust can be converged in the dust collecting box. The dust outlet is opened, so that the dust collection box can be cleaned intensively.

Optionally, a dustproof screen plate is arranged in the air outlet section.

Through adopting above-mentioned technical scheme, add dustproof otter board in the air-out section, can effectively restrict the dust that smugglies in the U type intraductal collection of smuggleing secretly in the high temperature air, the dust can gather in dustproof otter board one side towards the bending section promptly. Dust in the induced air bent pipe aligned with the air outlet continuously gathers on the dustproof screen plate, and dust on the dustproof screen plate in the other induced air bent pipe is blown by high-temperature air, can be separated from the dustproof screen plate and enters the dust collecting box through the dust inlet.

By the arrangement, the U-shaped pipe is prevented from being blocked due to long-term use as much as possible, dust converged on the dustproof screen is helpful for centralized movement and collection, and four-escape diffusion of the dust in the induced air bent pipe before the dust enters the dust collecting box is effectively limited.

Optionally, the dust blocking piece comprises a plurality of dust blocking plates, the length of each dust blocking plate increases progressively along the direction from the air outlet section to the bending section, positioning blocks are arranged on the dust blocking plates, positioning grooves with the same number as the positioning blocks are formed on the corresponding positioning blocks on the rotating seat, and the positioning blocks are arranged in the corresponding positioning grooves in a sliding manner;

when the air inlet section of one induced air bent pipe is aligned with the air outlet, each positioning block is abutted against the groove wall at one end of the positioning groove, the upper end of each dust blocking plate is flush to enable the dust inlet of the other induced air bent pipe to be opened, and the height of the lower end of each dust blocking plate is gradually decreased along the direction from the air outlet section to the bent section and shields the dust inlet on the induced air bent pipe aligned with the air outlet.

Through adopting above-mentioned technical scheme, when the air inlet section of one of them induced air return bend aligns with the gas outlet, under the effect of gravity, each dust blocking board all moves down to the locating piece on oneself and contradicts with the cell wall of constant head tank, and the lower extreme height of each dust blocking board is the degressive along the direction of air-out section to the bending section this moment, and the lower extreme cross-section line of each dust blocking board forms approximate arc promptly, when shielding the dust inlet on the induced air return bend that aligns with the gas outlet, has still effectively ensured the guide to high temperature air. Meanwhile, the upper end of the dust blocking plate is flush, so that the dust inlet of the other induced air bent pipe is opened, and the influence of the dust blocking plate on high-temperature air and dust entrained by the high-temperature air during movement is avoided as much as possible.

After the radiator is switched, namely the rotating seat rotates 180 degrees, the dust blocking plate moves under the action of gravity, the upper end and the lower end of the dust blocking plate are exchanged, and under the action of the positioning block and the positioning groove, the dust blocking plate shields the dust inlet of the induced air bent pipe rotating to the lower side of the rotating plate, and the dust inlet on the induced air bent pipe at the upper side of the rotating plate is opened. So set up, only can realize switching through gravity, need not additionally to increase the drive source that drives the dust blocking board and remove.

Optionally, the dust blocking piece further comprises two elastic air guiding films, wherein one air guiding film is connected with the upper ends of the dust blocking plates, and the other air guiding film is connected with the lower ends of the dust blocking plates.

Through adopting above-mentioned technical scheme, compare in the lower extreme that directly passes through the dust blocking plate and form approximate cambered surface, through addding the induced air membrane that has elasticity, not only improved the effect of the cambered surface that is used for guiding high temperature air that forms, still reduced the quantity that the dust blocking plate that needs to set up, simplified the structure of dust blocking piece.

Optionally, the dust collecting mechanism further comprises two groups of wind shielding components respectively arranged in different air inlet sections, the wind shielding components comprise a wind shielding plate and a limiting block, one end of the wind shielding plate is hinged to the air inlet section, the limiting block is arranged on one side of the wind shielding plate, close to the rotating seat, and is used for abutting against the end part, away from the hinged end, of the wind shielding plate, and the wind shielding plate is used for opening and closing an inner cavity of the air inlet section;

when one of the air inlet sections is aligned with the air outlet, the wind shield in the air inlet section aligned with the air outlet rotates to the inner cavity of the air inlet section to be opened, and the wind shield in the other air inlet section rotates to the inner cavity of the self-shielding air inlet section.

Through adopting above-mentioned technical scheme, because the one end of deep bead articulates on the air inlet section for when rotating the seat rotation and driving induced air return bend rotation, the deep bead can together rotate, and the stopper has played spacing effect to the rotation of deep bead. Because the stopper is located the one side that the deep bead is close to the rotation seat, when the air inlet section and the gas outlet of induced air return bend align, the deep bead rotates the inner chamber of air inlet section and opens, and the deep bead in another air inlet section rotates to self tip and the stopper conflict to shelter from the inner chamber of another air inlet section.

So set up, be located the induced air return bend of rotation seat downside and normally circulate, and be located the induced air return bend of rotation seat upside and interior high temperature air can follow the air-out section and get into the integrated box through the bending section, in having restricted to be located the induced air return bend of rotation seat upside and get into the air-supply line for in the dust can concentrate the entering dust collection box, improved the dust collection effect of dust collection box.

Optionally, be provided with the outlet duct that is linked together with self inner chamber and gas outlet on the cabinet body, be provided with the dust blocking brush on the upper end of outlet duct, the dust blocking brush is used for the tip conflict of one of them air inlet section.

By adopting the technical scheme, the dust-blocking brush is additionally arranged on the air outlet pipe, and the gap between the induced air bent pipe and the air outlet pipe is eliminated under the condition that the rotation of the induced air bent pipe is not influenced, so that dust is limited to enter the air outlet through the gap between the induced air bent pipe and the air outlet pipe.

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

1. by arranging a plurality of radiators and switching, when one radiator needs to be cleaned, the other radiator can perform heat radiation work, and a special power supply can be added to supply power to the radiator, so that the power failure of a power distribution cabinet and the power failure of an electric device are avoided as much as possible, and the use influence on the electric device when the radiator is cleaned is reduced;

2. the induced air bent pipe can guide high-temperature air, and is beneficial to discharging the high-temperature air;

3. through dust collection mechanism, can concentrate the collection to the dust in the induced air return bend, avoid the dust accumulation in the induced air return bend as far as possible, limited outside dust to get into in the induced air return bend earlier, help high temperature air to discharge.

Drawings

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

Fig. 2 is a schematic structural view of a salient rotating mechanism and an induced draft elbow in an embodiment of the present application.

FIG. 3 is a cross-sectional view of a salient dust resistant piece in an embodiment of the present application.

Fig. 4 is a cross-sectional view of a salient positioning block and a positioning slot in an embodiment of the present application.

Reference numerals illustrate:

1. a cabinet body; 11. an air inlet; 12. an air outlet; 13. an air outlet pipe; 14. dust-blocking brush; 2. a heat sink; 3. an induced air bent pipe; 31. an air inlet section; 32. a curved section; 321. a dust inlet; 33. an air outlet section; 331. a dust-proof screen; 4. a rotating mechanism; 41. a rotating frame; 42. a rotating seat; 421. a positioning groove; 43. a rotational drive source; 5. a dust collection mechanism; 51. a U-shaped tube; 52. dust-blocking member; 521. dust-blocking plate; 522. an induced air film; 523. a positioning block; 53. a dust collection box; 531. a dust outlet; 532. a box cover screen plate; 54. a wind shielding assembly; 541. a wind deflector; 542. and a limiting block.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-4.

The embodiment of the application discloses a smart power grid power distribution cabinet. Referring to fig. 1, the smart grid power distribution cabinet includes a cabinet body 1, two radiators 2 arranged above the cabinet body 1, induced air bent pipes 3 with the same number as the radiators 2, a rotating mechanism 4 driving the radiators 2 and the induced air bent pipes 3 to rotate, and a dust collecting mechanism 5 for collecting dust

Referring to fig. 1 and 2, an air inlet 11 is formed in a side wall of the cabinet body 1, an air outlet 12 is formed in a top wall of the cabinet body 1, and the air inlet 11 and the air outlet 12 are both communicated with an inner cavity of the cabinet body 1, so that external air can exchange with air in the cabinet body 1 through the air inlet 11 and the air outlet 12. An air outlet pipe 13 is fixed on the top wall of the cabinet body 1, the air outlet pipe 13 extends upwards, the inner cavity of the air outlet pipe 13 is communicated with the air inlet 11, and a ring-shaped dust-proof brush 14 is fixed at the upper end of the air outlet pipe 13.

Referring to fig. 1 and 2, the rotation mechanism 4 includes a rotation frame 41 fixed to an upper side of the cabinet 1, a rotation seat 42 rotatably provided on the rotation frame 41, and a rotation driving source 43 for driving the rotation seat 42 to rotate. In this embodiment, the rotation driving source 43 is a servo motor with a body fixed on the rotating frame 41, and an output shaft of the rotation driving source 43 is fixedly connected with the rotating seat 42.

Referring to fig. 2, two induced draft elbows 3 are respectively disposed at two sides of the rotating seat 42, and the induced draft elbows 3 are symmetrically disposed. The induced air return bend 3 includes air inlet section 31, bending section 32 and air-out section 33, and the extending direction of air inlet section 31 is perpendicular with the extending direction of air-out section 33, and the one end of bending section 32 is connected with air inlet section 31, and the other end of bending section 32 is connected with air-out section 33, and air inlet section 31, bending section 32 and air-out section 33 integrated into one piece, and air-out section 33 and bending section 32 are all fixed on rotating seat 42.

Referring to fig. 2, the rotary base 42 can be rotated until the air inlet section 31 of any one of the air induction bent pipes 3 is aligned with and communicated with the air outlet pipe 13, and at this time, the dust-blocking brush 14 abuts against the end of the air inlet section 31 and shields the gap between the air inlet section 31 and the air outlet pipe 13. The radiators 2 are fan groups, and the two radiators 2 are respectively arranged in different air inlet sections 31. A baffle plate can be additionally arranged above the upper induced air bent pipe 3 to limit dust to fall onto the radiator 2 in the upper induced air bent pipe 3.

Referring to fig. 3, the dust collection mechanism 5 includes a U-shaped tube 51, a dust blocking member 52, two dust collection boxes 53, and two sets of wind shielding members 54. The two ends of the U-shaped pipe 51 are respectively fixed on different air outlet sections 33 so as to enable the two air outlet sections 33 to be communicated. The two air outlet sections 33 are respectively fixed with a dustproof screen 331 for blocking dust and limiting the dust from entering the U-shaped pipe 51.

Referring to fig. 2 and 3, two dust boxes 53 are respectively fixed at one side of different bending sections 32 away from the air outlet section 33, and both dust boxes 53 are fixedly connected with the rotating seat 42. The curved section 32 is provided with a dust inlet 321, the dust inlet 321 faces the air outlet section 33 and extends along the extending direction of the air outlet section 33, and the dust inlet 321 is communicated with the inner cavity of the dust collecting box 53. The end surface of the dust collecting box 53, which is away from the air outlet section 33, is provided with a dust outlet 531 communicated with the inner cavity of the dust collecting box, one side of the dust collecting box 53, which is far away from the air outlet section 33, is provided with a box cover screen 532, and the box cover screen 532 is used for opening and closing the dust outlet 531. One end of the box cover screen 532 is hinged on the dust collecting box 53, and the other end of the box cover screen 532 is detachably connected with the dust collecting box 53 in a magnetic attraction mode, a clamping fit mode and the like, and in the embodiment of the application, the end part of the box cover screen 532, which is detachably connected with the dust collecting box 53, is connected with the dust collecting box 53 in a magnetic attraction mode.

Referring to fig. 3 and 4, the dust blocking member 52 is used for shielding one of the dust inlets 321, and the dust blocking member 52 is slidably disposed on the dust collecting box 53, the rotating seat 42 and the curved section 32, and the dust blocking member 52 includes a plurality of dust blocking plates 521 and two air guiding films 522. The length of each dust blocking plate 521 increases gradually along the direction from the air outlet section 33 to the bending section 32, and the length of the dust blocking plate 521 refers to the length of the dust block along the extending direction of the air inlet pipe. The two opposite side walls of the dust blocking plate 521 are respectively fixed with a positioning block 523, the two opposite side walls of the rotating seat 42 are respectively provided with a positioning groove 421 corresponding to the positioning blocks 523, the positioning grooves 421 extend to the inner wall of the dust collecting box 53, the number of the positioning grooves 421 is consistent with that of the positioning blocks 523, and the positioning blocks 523 are slidably arranged in the corresponding positioning grooves 421.

Referring to fig. 3 and 4, when the air inlet section 31 of one of the air induction bent pipes 3 is aligned with the air outlet pipe 13, each positioning block 523 abuts against the groove wall at one end of the positioning groove 421, and the height of the lower end of each dust blocking plate 521 decreases along the direction from the air outlet section 33 to the curved section 32, and covers the dust inlet 321 on the air induction bent pipe 3 aligned with the air outlet pipe 13, that is, the lower end of each dust blocking plate 521 covers the dust inlet 321 on the curved section 32 located at the lower side of the rotating seat 42. The upper ends of the dust blocking plates 521 are flush, so that the dust inlet 321 of the other induced air bent pipe 3 is opened, and the dust inlet 321 positioned on the upper side of the rotating seat 42 is opened.

Referring to fig. 3 and 4, the air guiding films 522 have elasticity, wherein one air guiding film 522 is fixedly connected with the upper end of each dust blocking plate 521 and the inner wall of one air outlet section 33, and the other air guiding film 522 is fixedly connected with the lower end of each dust blocking plate 521 and the inner wall of the other air outlet section 33.

Referring to fig. 3, two sets of wind shielding assemblies 54 are respectively disposed in different air inlet sections 31, and the wind shielding assemblies 54 are used for opening and closing the inner cavities of the air inlet sections 31. The wind shielding assembly 54 comprises a wind shielding plate 541 and a limiting block 542, wherein one end of the wind shielding assembly 54 is hinged on the air inlet section 31, and the other end of the wind shielding plate 541 is used for abutting against the limiting block 542. The limiting block 542 is fixed on the air inlet section 31, and the limiting block 542 is located on one side of the wind shield 541 close to the rotating seat 42.

Referring to fig. 3, when one of the air inlet sections 31 is aligned with the air outlet pipe 13, the wind shield 541 in the air inlet section 31 aligned with the air outlet pipe 13 rotates until the inner cavity of the air inlet section 31 is opened, and the wind shield 541 in the other air inlet section 31 rotates until the end of itself abuts against the stopper 542 and shields the inner cavity of the air inlet section 31.

The implementation principle of the intelligent power grid power distribution cabinet of the embodiment of the application is as follows: after one of the heat sinks 2 is used for a long time, the rotary seat 42 is rotated by the rotary driving source 43 to rotate the induced air bent pipe 3 and the heat sink 2 together, so that the air inlet section 31 on the induced air bent pipe 3 provided with the other heat sink 2 is aligned with the air outlet pipe 13. Therefore, the radiator 2 which is rotated to the upper side of the rotating seat 42 can be removed, and the radiator 2 can be cleaned, and the heat dissipation can be continuously carried out in the cabinet body 1 at the moment, so that the use of the electric device can be ensured. The special power supply of the radiator 2 can be additionally arranged to supply power to the radiator 2, so that the power distribution cabinet is not needed when the radiator 2 is cleaned.

Along with the rotation of the rotating seat 42, the dust blocking piece 52 and the wind shield 541 move together for adjustment, so that when one of the air inlet sections 31 is aligned with the air outlet pipe 13, the dust blocking piece 52 can always keep to shield the dust inlet 321 on the induced air bent pipe 3 aligned with the air outlet pipe 13, the wind shield 541 in the air inlet section 31 aligned with the air outlet pipe 13 rotates until the air inlet section 31 is opened, and the wind shield 541 in the other air inlet section 31 shields the inner cavity of the air inlet section 31. So set up, when guaranteeing the guiding effect of induced air return bend 3 that is located the downside to high temperature air, can realize collecting the dust on the dustproof otter board 331 in the induced air return bend 3 of upside in concentrating to the dust collection box 53, effectively reduced the staff to induced air return bend 3's clean frequency.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a smart power grids switch board, includes the cabinet body (1), air inlet (11) and gas outlet (12) have been seted up on the cabinet body (1), its characterized in that: the novel air conditioner further comprises a plurality of radiators (2), each radiator (2) can move to be opposite to the air outlet (12), and when one radiator (2) is opposite to the air outlet (12), the rest radiators (2) are staggered with the air outlet (12).

2. The smart grid power distribution cabinet of claim 1, wherein: still including setting up rotary mechanism (4) in cabinet body (1) top, rotary mechanism (4) are including rotating seat (42) and drive rotation seat (42) pivoted rotation drive source (43), radiator (2) are provided with two and all set up on rotating seat (42), two radiator (2) set up respectively in the both sides of rotating seat (42).

3. The smart grid power distribution cabinet of claim 2, wherein: the novel air conditioner is characterized by further comprising air induction bent pipes (3) which are consistent with the radiators (2) in number, the two air induction bent pipes (3) are respectively arranged on two sides of the rotating seat (42), each air induction bent pipe (3) comprises an air inlet section (31), an air outlet section (33) and a bent section (32) for connecting the air inlet section (31) with the air outlet section (33), the extending directions of the air inlet section (31) and the air outlet section (33) are staggered, the two radiators (2) are respectively arranged in the air inlet sections (31) of the different air induction bent pipes (3), and the rotating seat (42) can be rotated to align the air inlet section (31) of any air induction bent pipe (3) with the air outlet (12).

4. A smart grid power distribution cabinet as claimed in claim 3, wherein: still include dust collection mechanism (5), dust collection mechanism (5) include U type pipe (51), hinder dirt piece (52) and two dust collection boxes (53), connect respectively on different air-out section (33) at the both ends of U type pipe (51), two dust collection boxes (53) are connected respectively in different curved section (32) and are kept away from one side of air-out section (33), offer on curved section (32) with adjacent dust collection box (53) inner chamber be linked together inlet (321), inlet (321) are towards air-out section (33), hinder dirt piece (52) and slide and set up on dust collection box (53), rotation seat (42) and curved section (32), hinder dirt piece (52) are used for shielding one of them inlet (321), one of them when air inlet section (31) and air outlet (12) of induced air return bend (3) align, hinder dirt piece (52) and remove to inlet (321) on another induced air return bend (3), hinder dirt piece (52) and be equipped with inlet (321) on the air return bend (12) and return bend (33) are aligned with inlet (531) of air return bend (3).

5. The smart grid power distribution cabinet of claim 4, wherein: the dust collecting box (53) is provided with a box cover screen plate (532) for opening and closing the dust outlet (531).

6. The smart grid power distribution cabinet of claim 4, wherein: a dustproof screen plate (331) is arranged in the air outlet section (33).

7. The smart grid power distribution cabinet of claim 4, wherein: the dust blocking piece (52) comprises a plurality of dust blocking plates (521), the length of each dust blocking plate (521) increases gradually along the direction from the air outlet section (33) to the bending section (32), positioning blocks (523) are arranged on the dust blocking plates (521), positioning grooves (421) with the same number as the positioning blocks (523) are formed in the corresponding positioning blocks (523) on the rotating seat (42), and the positioning blocks (523) are slidably arranged in the corresponding positioning grooves (421);

when the air inlet section (31) of one induced air bent pipe (3) is aligned with the air outlet (12), each positioning block (523) is abutted against the groove wall at one end of the positioning groove (421), the upper end of each dust blocking plate (521) is flush to enable the dust inlet (321) of the other induced air bent pipe (3) to be opened, and the height of the lower end of each dust blocking plate (521) is gradually reduced along the direction from the air outlet section (33) to the bent section (32) and shields the dust inlet (321) on the induced air bent pipe (3) aligned with the air outlet (12).

8. The smart grid power distribution cabinet of claim 7, wherein: the dust blocking piece (52) further comprises two elastic air guiding films (522), wherein one air guiding film (522) is connected with the upper ends of the dust blocking plates (521), and the other air guiding film (522) is connected with the lower ends of the dust blocking plates (521).

9. The smart grid power distribution cabinet of claim 4, wherein: the dust collecting mechanism (5) further comprises two groups of wind shielding components (54) which are respectively arranged in different air inlet sections (31), the wind shielding components (54) comprise wind shields (541) and limiting blocks (542), one ends of the wind shields (541) are hinged to the air inlet sections (31), the limiting blocks (542) are arranged on one side, close to the rotating seat (42), of the wind shields (541) and are used for abutting against the end, away from the hinged end, of the wind shields (541) and are used for opening and closing the inner cavity of the air inlet section (31);

when one air inlet section (31) is aligned with the air outlet (12), a wind shield (541) in the air inlet section (31) aligned with the air outlet (12) rotates to open the inner cavity of the air inlet section (31), and the wind shield (541) in the other air inlet section (31) rotates to shield the inner cavity of the air inlet section (31) by itself.

10. The smart grid power distribution cabinet of claim 1, wherein: the novel dust-proof cabinet is characterized in that an air outlet pipe (13) communicated with the inner cavity of the cabinet body (1) and the air outlet (12) is arranged on the cabinet body, a dust-proof brush (14) is arranged at the upper end of the air outlet pipe (13), and the dust-proof brush (14) is used for abutting against the end part of one air inlet section (31).