A device for preventing internal dust accumulation in a DC microgrid grid-connected inverter

Abstract

The present invention relates to the technical field of grid-connected inverters, and discloses a device for preventing internal dust accumulation in a DC microgrid grid-connected inverter, comprising a grid-connected inverter and a dust collecting component, wherein the dust collecting component comprises a fixed frame, the top of the fixed frame is fixedly connected to the bottom of the grid-connected inverter, the bottom of the fixed frame is fixedly connected to a motor, the output end of the motor is fixedly connected to a fan frame, and the bottom of the fan frame is rotatably connected to a cylindrical frame. The present invention provides a dust collecting component on the surface of the grid-connected inverter, and utilizes the dust collecting component to absorb and collect dust inside the grid-connected inverter to prevent dust from entering the grid-connected inverter and accumulating inside the inverter and affecting heat dissipation. The dust collecting component drives a separation component to rotate when rotating, and the separation component processes the collected dust to prevent dust from accumulating inside the separation component and affecting the processing effect. The separation component drives an exhaust component to open and close when rotating, and discharges gas from the dust collecting component when opening.

Description

Technical Field

[0001] The present invention relates to the technical field of grid-connected inverters, and in particular to a device for preventing internal dust accumulation in a DC microgrid grid-connected inverter. Background Art

[0002] Photovoltaic inverters are specialized inverters used in the field of solar photovoltaic power generation. They can convert the direct current generated by solar cells into alternating current (AC) energy that can be directly connected to the power grid and loads through power electronic conversion technology. They are an indispensable core component in photovoltaic systems. The photovoltaic grid-connected inverter in a photovoltaic inverter serves as an interface device between photovoltaic cells and the power grid. It converts the electrical energy of photovoltaic cells into AC energy and transmits it to the power grid, playing a vital role in photovoltaic grid-connected power generation systems.

[0003] After the grid-connected inverter's shell is assembled, it needs to be fixed with screws. There will be gaps between the assembled shells. When the grid-connected inverter is in use, external dust can easily enter the interior of the grid-connected inverter through the gaps. After a long period of accumulation, the dust will gather on the surface of the internal parts of the grid-connected inverter. When the internal parts of the grid-connected inverter reach high temperature after long-term use, the accumulated dust will prevent the high temperature from dissipating, thereby affecting the service life of the grid-connected inverter. Summary of the Invention

[0004] The object of the present invention is to provide a device for preventing internal dust accumulation of a DC microgrid grid-connected inverter, so as to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a device for preventing internal dust accumulation of a DC microgrid grid-connected inverter, comprising a grid-connected inverter and:

[0007] A dust collection component, the dust collection component includes a fixed frame, the top of the fixed frame is fixedly connected to the bottom of the grid-connected inverter, the bottom of the fixed frame is fixedly connected to a motor, the output end of the motor is fixedly connected to a fan frame, and the bottom of the fan frame is rotatably connected to a cylindrical frame;

[0008] The separation component includes a rotating frame, the inner wall of the rotating frame is fixedly connected to the upper surface of the fan blade frame, the end of the rotating frame is fixedly connected to a limit ring, and the end of the limit ring is fixedly connected to a circular ring groove frame;

[0009] The exhaust component includes a through-hole frame, which is fixedly connected to the cylindrical frame. The inner wall of the through-hole frame is fixedly connected to a circular hole disk, and the inner wall of the circular hole disk is slidably connected to a spherical rod.

[0010] Furthermore, the dust collecting component includes a connecting pipe, the connecting pipe is connected to the surface of the cylindrical frame, one end of the connecting pipe away from the cylindrical frame is connected to the storage rack, and the surface of the storage rack is connected to the bent pipe rack;

[0011] The upper surface of the bent pipe rack is connected to the air intake rack, and the top of the storage rack is provided with a circular hole.

[0012] Furthermore, one end of the air intake rack away from the bent pipe rack passes through the grid-connected inverter and extends to the interior of the grid-connected inverter, and the surface of the air intake rack is fixedly connected to the inner wall of the grid-connected inverter. There are four bent pipe racks, and the four bent pipe racks are arranged in a circle with the storage rack as the center.

[0013] Furthermore, the separation component includes a connecting rod, the end of the connecting rod is fixedly connected to the surface of the limiting ring, the end of the connecting rod away from the limiting ring is fixedly connected to the driving ring, the inner wall of the storage rack is fixedly connected to the sieve ring, the inner wall of the storage rack is fixedly connected to the extrusion rack, the bottom of the connecting pipe is fixedly connected to an elastic rod, the bottom of the elastic rod is fixedly connected to a lifting ring, the bottom of the lifting ring is fixedly connected to a push plate, the end of the push plate away from the lifting ring is fixedly connected to an arc plate, the bottom of the storage rack is provided with an arc hole, and the bottom of the driving ring is fixedly connected to a vertical rod;

[0014] The bottom of the vertical rod is fixedly connected to a cylindrical rod, the surface of the cylindrical rod is fixedly connected to a scraper, and the end of the cylindrical rod away from the scraper is fixedly connected to a rubber pad. When the cylindrical rod rotates, the rubber pad will contact the extrusion frame and generate slight vibration, thereby using the vibration to clean the dust on the surface of the sieve ring.

[0015] Furthermore, the surface of the driving ring is rotatably connected to the inner wall of the circular hole, and there are two circular groove frames, which are symmetrically arranged with the limiting ring as the center, and the ends of the two circular groove frames that are away from each other are rotatably connected to the bottom of the fixed frame and the top of the cylindrical frame respectively.

[0016] Furthermore, the surface of the arc plate contacts the inner wall of the arc hole, the sieve ring is located at the connection of the storage rack close to the connecting pipe, the extrusion rack is located at one end of the storage rack close to the bent pipe rack, and the end of the scraper away from the cylindrical rod contacts the surface of the sieve ring.

[0017] Furthermore, the exhaust component includes a linkage frame, the top of the linkage frame is fixedly connected to the bottom of the rotating frame, the bottom of the linkage frame is fixedly connected to a driving plate, the bottom of the driving plate is fixedly connected to a pressure ring, the top of the pressure ring is fixedly connected to a triangular plate, and the surface of the circular hole disk is fixedly connected to a spring;

[0018] One end of the spring away from the circular hole disk is fixedly connected to the sealing disk, and one end of the sealing disk close to the spring is fixedly connected to the spherical rod.

[0019] Furthermore, the bottom of the pressure ring is rotatably connected to the bottom of the inner wall of the cylindrical frame, the end of the through-hole frame extends to the outer end of the cylindrical frame, the sealing disk contacts the inner wall of the through-hole frame, and the end of the spherical rod away from the sealing disk extends to the interior of the cylindrical frame.

[0020] The present invention has the following beneficial effects:

[0021] The present invention provides a dust collecting component on the surface of the grid-connected inverter, and utilizes the dust collecting component to absorb and collect dust inside the grid-connected inverter, so as to prevent dust from entering the grid-connected inverter and accumulating inside the inverter and affecting heat dissipation. The dust collecting component drives the separation component to rotate when rotating, and processes the collected dust through the separation component, so as to prevent dust from accumulating inside the separation component and affecting the processing effect. The separation component drives the exhaust component to perform an opening operation when rotating, and discharges the gas of the dust collecting component when opening.

[0022] The starting motor of the present invention drives the fan blade frame to rotate, and the suction force generated by the rotation of the fan blade frame enters the interior of the storage frame through the connecting pipe. The bent pipe frame transmits the suction force to the interior of the air intake frame and then enters the interior of the grid-connected inverter. The dust inside the grid-connected inverter will enter the interior of the storage frame through the suction force and be stored, thereby preventing dust from accumulating inside the grid-connected inverter and affecting the heat dissipation effect of the parts. The dust that enters the interior of the grid-connected inverter through the gaps in the grid-connected inverter can be quickly cleaned away, thereby increasing the service life of the grid-connected inverter.

[0023] When the fan blade frame of the present invention rotates, the limiting ring is driven to rotate by the rotating frame, and the limiting ring drives the annular groove frame to rotate at the bottom of the fixed frame when rotating. When the limiting ring rotates, the driving ring is driven to rotate on the inner wall of the annular hole through the connecting rod. When the driving ring rotates, it pushes the scraper to rotate inside the storage frame, and the scraper is used to clean the surface of the sieve hole ring to prevent dust from accumulating on the surface of the sieve hole ring and affecting the air intake effect of the connecting pipe. The sieve hole ring is used to isolate the dust inside the storage frame for storage, and when the lifting ring is pulled to move downward, the arc plate is pushed downward by the push plate, so that the arc plate can be separated from the inner wall of the arc hole, so that the dust inside the storage frame can be cleaned regularly. Storing dust inside the storage frame can prevent dust from repeatedly contacting the grid-connected inverter.

[0024] When the rotating frame of the present invention rotates, the pressure ring is driven to rotate by the connection between the linkage frame and the driving plate. When the pressure ring rotates, it pushes the triangular plate to contact the surface of the spherical rod and pushes the spherical rod to move toward the inside of the through-hole frame. After the spherical rod pushes the sealing disk to separate from the inner wall of the through-hole frame, the gas generated by the fan blade frame can be discharged through the through-hole frame, thereby dissipating the adsorbed heat. After the elasticity of the spring is used to reset the round hole disk, it contacts the inner wall of the through-hole frame to seal the cylindrical frame, so as to ensure that the suction force generated by the fan blade frame can enter the interior of the grid-connected inverter to deal with dust.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 Schematic diagram of the structure of the present invention Figure 1 ;

[0029] Figure 3 Schematic diagram of the structure of the present invention Figure 2 ;

[0030] Figure 4 This is a schematic diagram of the overall structure of the dust collection component of the present invention;

[0031] Figure 5 This is a schematic diagram of the overall structure of the separation component of the present invention;

[0032] Figure 6 This is another structural schematic diagram of the separation component of the present invention;

[0033] Figure 7 This is a schematic diagram of the scraper structure of the present invention;

[0034] Figure 8 It is a schematic diagram of the overall structure of the exhaust component of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] In the figure: 1. Grid-connected inverter; 2. Dust collection component; 3. Separation component; 4. Exhaust component; 10. Fixed frame; 11. Motor; 12. Connecting pipe; 13. Inlet frame; 14. Fan blade frame; 15. Cylindrical frame; 16. Circular ring hole; 17. Storage rack; 18. Bend pipe frame; 20. Rotating frame; 21. Limiting ring; 22. Drive ring; 23. Sieve ring; 24. Linking rod; 25. Circular ring groove frame; 26. Push plate; 27. Arc hole; 28. Lifting ring; 29. ​​Arc plate; 30. Extrusion frame; 31. Vertical rod; 32. Cylindrical rod; 33. Rubber pad; 34. Scraper; 35. Elastic rod; 40. Linking frame; 41. Sealing disk; 42. Spring; 43. Pressure ring; 44. Drive plate; 45. Through-hole frame; 46. Ball rod; 47. Triangular plate; 48. Circular hole disk. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1-8 As shown, the present invention is a device for preventing internal dust accumulation of a DC microgrid grid-connected inverter, comprising a grid-connected inverter 1, and further comprising:

[0039] The dust collecting component 2 includes a fixing frame 10, the top of the fixing frame 10 is fixedly connected to the bottom of the grid-connected inverter 1, the bottom of the fixing frame 10 is fixedly connected to a motor 11, the output end of the motor 11 is fixedly connected to a fan frame 14, and the bottom of the fan frame 14 is rotatably connected to a cylindrical frame 15;

[0040] Separation component 3, the separation component 3 includes a rotating frame 20, the inner wall of the rotating frame 20 is fixedly connected to the upper surface of the fan blade frame 14, the end of the rotating frame 20 is fixedly connected to the limit ring 21, and the end of the limit ring 21 is fixedly connected to the annular groove frame 25;

[0041] The exhaust component 4 includes a through-hole frame 45, which is fixedly connected to the cylindrical frame 15. The inner wall of the through-hole frame 45 is fixedly connected with a circular hole disk 48. The present invention provides a dust collecting component 2 on the surface of the grid-connected inverter 1. The dust collecting component 2 is used to absorb and collect dust inside the grid-connected inverter 1 to prevent dust from entering the grid-connected inverter 1 and accumulating inside the grid-connected inverter 1 to affect heat dissipation. The dust collecting component 2 pushes the separation component 3 to rotate when rotating, and the collected dust is processed by the separation component 3 to prevent dust from accumulating inside the separation component 3 and affecting the processing effect. The separation component 3 drives the exhaust component 4 to open and close when rotating, and discharges the gas from the dust collecting component 2 when opening. The inner wall of the circular hole disk 48 is slidably connected with a spherical rod 46.

[0042] The dust collecting component 2 includes a connecting pipe 12, which is connected to the surface of the cylindrical frame 15. The end of the connecting pipe 12 away from the cylindrical frame 15 is connected to the storage rack 17, and the surface of the storage rack 17 is connected to the curved pipe rack 18.

[0043] The upper surface of the bent pipe rack 18 is connected to the air inlet rack 13 , and a circular hole 16 is formed on the top of the storage rack 17 .

[0044] One end of the air intake rack 13 away from the bent pipe rack 18 passes through the grid-connected inverter 1 and extends to the interior of the grid-connected inverter 1, and the surface of the air intake rack 13 is fixedly connected to the inner wall of the grid-connected inverter 1. The starting motor 11 of the present invention drives the fan rack 14 to rotate, and the suction generated by the rotation of the fan rack 14 enters the interior of the storage rack 17 through the connecting pipe 12. The bent pipe rack 18 transmits the suction force to the interior of the air intake rack 13 and then enters the interior of the grid-connected inverter 1. The dust inside the grid-connected inverter 1 will enter the interior of the storage rack 17 through the suction force for storage, so as to avoid dust accumulation in the interior of the grid-connected inverter 1 and affect the heat dissipation effect of the parts. The dust entering the interior through the gaps in the grid-connected inverter 1 can be quickly cleaned up, thereby improving the service life of the grid-connected inverter 1. There are four bent pipe racks 18, and the four bent pipe racks 18 are arranged around the storage rack 17 as the center.

[0045] The separation component 3 includes a connecting rod 24, the end of the connecting rod 24 is fixedly connected to the surface of the limiting ring 21, the end of the connecting rod 24 away from the limiting ring 21 is fixedly connected to the driving ring 22, the inner wall of the storage rack 17 is fixedly connected to the sieve ring 23, the inner wall of the storage rack 17 is fixedly connected to the extrusion rack 30, the bottom of the connecting pipe 12 is fixedly connected to the elastic rod 35, the bottom of the elastic rod 35 is fixedly connected to the lifting ring 28, the bottom of the lifting ring 28 is fixedly connected to the push plate 26, the end of the push plate 26 away from the lifting ring 28 is fixedly connected to the arc plate 29, the bottom of the storage rack 17 is provided with an arc hole 27, and the bottom of the driving ring 22 is fixedly connected to the vertical rod 31;

[0046] The bottom of the vertical rod 31 is fixedly connected to a cylindrical rod 32 , the surface of the cylindrical rod 32 is fixedly connected to a scraper 34 , and one end of the cylindrical rod 32 away from the scraper 34 is fixedly connected to a rubber pad 33 .

[0047] The surface of the driving ring 22 is rotatably connected to the inner wall of the annular hole 16. There are two annular groove frames 25, and the two annular groove frames 25 are symmetrically arranged with the limiting ring 21 as the center. When the fan frame 14 of the present invention rotates, the limiting ring 21 is driven to rotate through the rotating frame 20. When the limiting ring 21 rotates, it drives the annular groove frame 25 to rotate at the bottom of the fixed frame 10. When the limiting ring 21 rotates, it drives the driving ring 22 to rotate on the inner wall of the annular hole 16 through the connecting rod 24. When the driving ring 22 rotates, it pushes the scraper 34 to rotate inside the storage frame 17, and the scraper 34 is used to clean the surface of the sieve ring 23 , to prevent dust from accumulating on the surface of the sieve ring 23 and affecting the air intake effect of the connecting pipe 12, the sieve ring 23 is used to isolate the dust inside the storage rack 17 for storage, and when the lifting ring 28 is pulled downward, the arc plate 29 is pushed downward by the push plate 26, so that the arc plate 29 can be separated from the inner wall of the arc hole 27, so that the dust inside the storage rack 17 can be cleaned regularly. Storing dust inside the storage rack 17 can prevent dust from repeatedly contacting the grid-connected inverter 1, and the ends of the two annular groove frames 25 away from each other are rotatably connected to the bottom of the fixed frame 10 and the top of the cylindrical frame 15 respectively.

[0048] The surface of the arc plate 29 contacts the inner wall of the arc hole 27, the sieve ring 23 is located at the connection of the storage rack 17 close to the connecting pipe 12, the extrusion rack 30 is located at one end of the storage rack 17 close to the bending rack 18, and the end of the scraper 34 away from the cylindrical rod 32 contacts the surface of the sieve ring 23.

[0049] The exhaust component 4 includes a linkage frame 40, the top of which is fixedly connected to the bottom of the rotating frame 20, a driving plate 44 being fixedly connected to the bottom of the linkage frame 40, a pressure ring 43 being fixedly connected to the bottom of the driving plate 44, a triangular plate 47 being fixedly connected to the top of the pressure ring 43, and a spring 42 being fixedly connected to the surface of a circular hole disk 48;

[0050] One end of the spring 42 away from the circular hole disk 48 is fixedly connected to the sealing disk 41 , and one end of the sealing disk 41 close to the spring 42 is fixedly connected to the spherical rod 46 .

[0051] The bottom of the pressure ring 43 is rotatably connected to the bottom of the inner wall of the cylindrical frame 15, and the end of the through-hole frame 45 extends to the outer end of the cylindrical frame 15. When the rotating frame 20 of the present invention rotates, the pressure ring 43 is driven to rotate by the connection between the linkage frame 40 and the driving plate 44. When rotating, the pressure ring 43 pushes the triangular plate 47 to contact the surface of the spherical rod 46, and pushes the spherical rod 46 to move toward the inside of the through-hole frame 45. After the spherical rod 46 pushes the sealing disk 41 to separate from the inner wall of the through-hole frame 45, the gas generated by the fan blade frame 14 can be discharged through the through-hole frame 45, thereby dissipating the adsorbed heat. The round hole disk 48 uses the elasticity of the spring 42 to reset and contact the inner wall of the through-hole frame 45 to seal the cylindrical frame 15, so as to ensure that the suction force generated by the fan blade frame 14 can enter the interior of the grid-connected inverter 1 to deal with dust. The sealing disk 41 contacts the inner wall of the through-hole frame 45, and the end of the spherical rod 46 away from the sealing disk 41 extends to the inside of the cylindrical frame 15.

[0052] When in use, a dust collecting component 2 is provided on the surface of the grid-connected inverter 1, and the dust collecting component 2 is used to absorb and collect dust inside the grid-connected inverter 1 to prevent dust from entering the grid-connected inverter 1 and accumulating inside the grid-connected inverter 1 and affecting heat dissipation. The dust collecting component 2 drives the separation component 3 to rotate when rotating, and the separation component 3 processes the collected dust to prevent dust from accumulating inside the separation component 3 and affecting the processing effect. The separation component 3 drives the exhaust component 4 to open and close when rotating, and discharges the gas of the dust collecting component 2 when opening. The starting motor 11 drives the fan blade frame 14 to rotate, and the suction generated by the rotation of the fan blade frame 14 enters the storage rack 17 through the connecting pipe 12. The inside of the grid-connected inverter 1 is connected to the fan frame 14, and the bent pipe frame 18 transmits the suction force to the inside of the air intake frame 13 and then enters the inside of the grid-connected inverter 1. The dust inside the grid-connected inverter 1 will enter the inside of the storage rack 17 through the suction force for storage, so as to prevent the dust from accumulating inside the grid-connected inverter 1 and affecting the heat dissipation effect of the parts. The dust entering the inside through the gaps in the grid-connected inverter 1 can be quickly cleaned up, thereby improving the service life of the grid-connected inverter 1. When the fan frame 14 rotates, it drives the limiting ring 21 to rotate through the rotating frame 20. When the limiting ring 21 rotates, it drives the annular groove frame 25 to rotate at the bottom of the fixed frame 10. When the limiting ring 21 rotates, it drives the driving ring 22 to rotate through the connecting rod 24. The inner wall of the annular hole 16 rotates, and the driving ring 22 pushes the scraper 34 to rotate inside the storage rack 17 during rotation. The scraper 34 is used to clean the surface of the sieve ring 23 to prevent dust from accumulating on the surface of the sieve ring 23 and affecting the air intake effect of the connecting pipe 12. The sieve ring 23 is used to isolate the dust from the inside of the storage rack 17 for storage. When the lifting ring 28 is pulled downward, the arc plate 29 is pushed downward by the push plate 26 so that the arc plate 29 can be separated from the inner wall of the arc hole 27, so as to regularly clean the dust inside the storage rack 17. Storing the dust inside the storage rack 17 can prevent the dust from repeatedly contacting the grid-connected inverter 1. When the movable frame 20 rotates, the pressure ring 43 is driven to rotate through the connection between the linkage frame 40 and the driving plate 44. When the pressure ring 43 rotates, it pushes the triangular plate 47 to contact the surface of the spherical rod 46, and pushes the spherical rod 46 to move toward the inside of the through-hole frame 45. After the spherical rod 46 pushes the sealing disk 41 to separate from the inner wall of the through-hole frame 45, the gas generated by the fan blade frame 14 can be discharged through the through-hole frame 45, thereby dissipating the adsorbed heat. The round hole disk 48 uses the elasticity of the spring 42 to reset and contact the inner wall of the through-hole frame 45 to seal the cylindrical frame 15, so as to ensure that the suction force generated by the fan blade frame 14 can enter the interior of the grid-connected inverter 1 to deal with dust.

[0053] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for preventing internal dust accumulation of a DC microgrid grid-connected inverter, comprising a grid-connected inverter (1), characterized in that: Also includes: A dust collecting component (2), the dust collecting component (2) comprising a fixing frame (10), the top of the fixing frame (10) being fixedly connected to the bottom of the grid-connected inverter (1), the bottom of the fixing frame (10) being fixedly connected to the motor (11), the output end of the motor (11) being fixedly connected to the fan blade frame (14), and the bottom of the fan blade frame (14) being rotatably connected to the cylindrical frame (15); A separation component (3), the separation component (3) comprising a rotating frame (20), the inner wall of the rotating frame (20) being fixedly connected to the upper surface of the fan blade frame (14), the end of the rotating frame (20) being fixedly connected to a limiting ring (21), and the end of the limiting ring (21) being fixedly connected to a circular groove frame (25); An exhaust component (4), the exhaust component (4) comprising a through-hole frame (45), the through-hole frame (45) being fixedly connected to the cylindrical frame (15), the inner wall of the through-hole frame (45) being fixedly connected to a circular hole plate (48), and the inner wall of the circular hole plate (48) being slidably connected to a spherical rod (46); The dust collecting component (2) comprises a connecting pipe (12), the connecting pipe (12) is connected to the surface of the cylindrical frame (15), one end of the connecting pipe (12) away from the cylindrical frame (15) is connected to the storage frame (17), and the surface of the storage frame (17) is connected to the bent pipe frame (18); The upper surface of the bent pipe rack (18) is connected to the air inlet rack (13), and a circular hole (16) is provided on the top of the storage rack (17); The separation component (3) includes a connecting rod (24), an end of the connecting rod (24) is fixedly connected to the surface of the limiting ring (21), and an end of the connecting rod (24) away from the limiting ring (21) is fixedly connected to the driving ring (22); a circular arc hole (27) is provided at the bottom of the storage rack (17), and the bottom of the driving ring (22) is fixedly connected to the vertical rod (31); The bottom of the vertical rod (31) is fixedly connected to the cylindrical rod (32), and the surface of the cylindrical rod (32) is fixedly connected to the scraper (34); The exhaust component (4) includes a linkage frame (40), the top of the linkage frame (40) is fixedly connected to the bottom of the rotating frame (20), the bottom of the linkage frame (40) is fixedly connected to the driving plate (44), the bottom of the driving plate (44) is fixedly connected to the pressure ring (43), the top of the pressure ring (43) is fixedly connected to the triangular plate (47), and the surface of the circular hole disk (48) is fixedly connected to the spring (42); One end of the spring (42) away from the circular hole disk (48) is fixedly connected to the sealing disk (41), and one end of the sealing disk (41) close to the spring (42) is fixedly connected to the spherical rod (46).

2. The device for preventing internal dust accumulation of a DC microgrid grid-connected inverter according to claim 1, characterized in that: One end of the air intake rack (13) away from the bent pipe rack (18) passes through the grid-connected inverter (1) and extends to the interior of the grid-connected inverter (1), and the surface of the air intake rack (13) is fixedly connected to the inner wall of the grid-connected inverter (1). There are four bent pipe racks (18), and the four bent pipe racks (18) are arranged around the storage rack (17).

3. The device for preventing internal dust accumulation of a DC microgrid grid-connected inverter according to claim 2, characterized in that: The inner wall of the storage rack (17) is fixedly connected to a sieve ring (23), the inner wall of the storage rack (17) is fixedly connected to an extrusion rack (30), the bottom of the connecting pipe (12) is fixedly connected to an elastic rod (35), the bottom of the elastic rod (35) is fixedly connected to a lifting ring (28), the bottom of the lifting ring (28) is fixedly connected to a push plate (26), the end of the push plate (26) away from the lifting ring (28) is fixedly connected to an arc plate (29), and the end of the cylindrical rod (32) away from the scraper (34) is fixedly connected to a rubber pad (33).

4. The device for preventing internal dust accumulation of a DC microgrid grid-connected inverter according to claim 3, characterized in that: The surface of the driving ring (22) is rotatably connected to the inner wall of the annular hole (16). The number of the annular groove frames (25) is two. The two annular groove frames (25) are symmetrically arranged with the limiting ring (21) as the center. The ends of the two annular groove frames (25) that are away from each other are rotatably connected to the bottom of the fixing frame (10) and the top of the cylindrical frame (15).

5. The device for preventing internal dust accumulation of a DC microgrid grid-connected inverter according to claim 4, characterized in that: The surface of the arc plate (29) contacts the inner wall of the arc hole (27), the sieve ring (23) is located at the connection of the storage rack (17) close to the connecting pipe (12), the extrusion rack (30) is located at one end of the storage rack (17) close to the bending pipe rack (18), and the end of the scraper (34) away from the cylindrical rod (32) contacts the surface of the sieve ring (23).

6. The device for preventing internal dust accumulation of a DC microgrid grid-connected inverter according to claim 5, characterized in that: The bottom of the pressure ring (43) is rotatably connected to the bottom of the inner wall of the cylindrical frame (15), the end of the through-hole frame (45) extends to the outer end of the cylindrical frame (15), the sealing disk (41) contacts the inner wall of the through-hole frame (45), and the end of the spherical rod (46) away from the sealing disk (41) extends to the interior of the cylindrical frame (15).

Images