CN118868644A - A transformer rectifier with dust-proof function - Google Patents

Abstract

The invention discloses a transformer rectifier with a dustproof function, which comprises a rectifier body, wherein a radiating opening is formed in the side wall of the rectifier body, and a shell is arranged on the side wall of the rectifier body and positioned at the radiating opening; one end of the outer shell far away from the rectifier body is provided with a filter screen, one side of the filter screen far away from the rectifier body is provided with a cleaning component in a sliding manner, and the center of the outer shell is provided with a transmission component. When the cleaning device is used, the transmission assembly drives the reciprocating screw rod to rotate, the reciprocating screw rod rotates to enable the mounting bar to reciprocate in the vertical direction on the surface of the filter screen, the rollers are fixedly arranged at the two ends of the cleaning roller, the rollers are arranged at the two ends of the mounting bar and are attached to the side walls of the filter screen, when the mounting bar moves up and down on the surface of the filter screen, the cleaning roller rotates through the rotation of the rollers, and the brush hair on the cleaning roller can better stretch into the filter holes of the filter screen to wrap dust.

Description

A transformer rectifier with dust-proof function

Technical Field

The invention relates to the technical field of transformer rectifiers, in particular to a transformer rectifier with a dustproof function.

Background Art

Transformer rectifier is an electrical device that converts AC power into DC power. It combines the functions of transformer and rectifier in one and is mainly used in situations where DC power is required.

Chinese Patent Publication No.: CN218550405U discloses a transformer rectifier with dustproof function. The transformer rectifier with dustproof function includes a transformer rectifier body and a dustproof box, and also includes a dustproof component. The dustproof component includes a dust filter plate, a fixed column, a sliding column, a spring, a slider, a forward and reverse motor, a threaded rod, a guide rod, a moving block, a fixed block, a cleaning brush, a micro vibration motor, a mounting block and a fan.

The above-mentioned device cleans the filter screen by the reciprocating motion of the cleaning brush to avoid the problem of the filter screen being clogged by dust. However, the cleaning brush is arranged on the side of the filter screen close to the rectifier. When the cleaning brush moves to clean the filter screen, the dust cleaned off the filter screen is not collected, so that the cleaned dust will enter the inside of the rectifier, and the dust will adhere to the components inside the rectifier, which may cause the rectifier to short-circuit or reduce the insulation of the components.

Therefore, it is necessary to provide a transformer rectifier with dustproof function to solve the above technical problems.

Summary of the invention

The object of the present invention is to provide a transformer rectifier with dustproof function to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a transformer rectifier with dustproof function, comprising a rectifier body, a heat dissipation port is arranged on the side wall of the rectifier body, and a shell is installed on the side wall of the rectifier body at the position of the heat dissipation port; a filter is installed at one end of the shell away from the rectifier body, a cleaning component is slidably arranged on the side of the filter away from the rectifier body, a transmission component is arranged at the center of the shell, and a blocking mechanism is installed at one end of the shell close to the rectifier body, when the transmission component rotates, the transmission component drives the cleaning component to reciprocate on the filter, and at the same time, the rotation of the transmission component also drives the filter to reciprocate in the up and down directions, and when the filter moves up and down, the filter drives the blocking mechanism to rotate.

As a further solution of the present invention: the cleaning assembly includes a mounting bar; the mounting bar is arranged on the side of the filter away from the rectifier body, and a cleaning groove is slidably arranged on the side of the mounting bar close to the filter, a cleaning roller is rotatably connected in the cleaning groove, a reciprocating screw is rotatably arranged at the center of the outer shell, and the reciprocating screw is arranged on the side of the filter away from the rectifier body, and the mounting bar is rotatably connected to the reciprocating screw.

As a further solution of the present invention: rollers are fixedly provided at both ends of the cleaning roller, the rollers are arranged at both ends of the mounting strip and fit with the side walls of the filter screen, and U-shaped rods are fixedly provided on the upper and lower sides of the cleaning groove, and the U-shaped rods are slidably fitted with the cleaning roller.

As a further solution of the present invention: collecting grooves are arranged in the side walls of both sides of the shell, a collecting box is installed at the bottom end of the inner wall of the collecting groove, a telescopic tube is arranged at the top of the collecting box, and the collecting box and the telescopic tube are connected, the bottom of the telescopic tube is fixedly connected to the side wall of the collecting groove, the top of the telescopic tube is elastically connected to the top of the inner wall of the collecting groove, an air duct is arranged on the inner wall of the side wall of the mounting bar, and a dust suction port is arranged on the side wall of the mounting bar, the air duct and the cleaning groove are connected through the dust suction port, connecting pipes are arranged at both ends of the air duct, the end of the connecting pipe away from the mounting bar is fixedly connected to the connecting plate, and the air duct is connected to the telescopic tube through the connecting pipe.

As a further solution of the present invention: the transmission assembly includes a fan; the fan is arranged in the outer shell and located between the filter and the rectifier body, a fixed plate is provided on the side of the fan close to the filter, both ends of the fixed plate are fixedly connected to the inner wall of the outer shell, the side of the fan close to the filter is connected to a rotating shaft through a belt drive, the rotating shaft is rotatably embedded in the bottom side wall of the outer shell, and the end of the rotating shaft away from the fan is transmission-connected to the bottom end of the reciprocating screw.

As a further solution of the present invention: the top and bottom of the inner wall of the shell are provided with installation grooves, the filter is slidably installed in the shell through the installation grooves, the rotating shaft passes through the installation grooves at the bottom of the shell, and a cam is fixedly provided on the periphery of the rotating shaft, the cam is arranged in the installation groove, and the installation groove is slidably fitted with the bottom of the filter.

As a further solution of the present invention: the sealing mechanism includes sealing leaves; the sealing leaves are rotatably arranged on one side of the outer shell close to the rectifier body, and there are multiple groups of sealing leaves, and a trigger component for driving the sealing leaves to rotate is arranged in the side wall of the outer shell, and the trigger component cooperates with the top of the filter.

As a further solution of the present invention: the trigger assembly includes a top plate; an airbag is provided at the bottom of the top plate, a bottom plate is provided at the bottom of the airbag, a top side wall of the shell is provided with a movable groove connected to the mounting groove, the top plate, the airbag and the bottom plate are slidably arranged in the movable groove, trigger blocks are fixedly arranged at both ends of the bottom plate, and the trigger blocks are arranged on one side of the bottom plate corresponding to the filter.

As a further solution of the present invention: gears are fixedly provided at both ends of the blocking leaf, racks corresponding to the gears are fixedly provided on both sides of the top plate, and the gears and racks are both arranged in the side walls of the outer shell.

As a further solution of the present invention: sealing plates cooperating with the sealing leaves are fixedly provided on the top and bottom of the inner wall of the shell.

Compared with the prior art, the beneficial effect of the present invention is that when in use, when the transmission assembly rotates, the transmission assembly drives the reciprocating screw to rotate, and the rotation of the reciprocating screw causes the mounting bar to reciprocate in the up and down directions on the surface of the filter screen, and rollers are fixedly arranged at both ends of the cleaning roller, and the rollers are arranged at both ends of the mounting bar and fit with the side walls of the filter screen. In this way, when the mounting bar moves up and down on the surface of the filter screen, the rollers fit with the filter screen, so the rollers will rotate, and the rotation of the rollers will cause the cleaning roller to rotate and rotate, and the rotation of the cleaning roller allows the bristles on it to better extend into the filter holes of the filter screen to bring out the dust, and expand upward through the telescopic tube to generate negative pressure, and then absorb external air into the telescopic tube through the connecting tube, the airway, and the dust suction port, and then absorb the dust on the cleaning roller into the telescopic tube, completing the collection of the cleaned dust, avoiding the possibility that the dust may be attached to the filter screen again with the airflow, and also avoiding the problem that the dust is dissipated in the air and attached to the outer shell of the rectifier body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the front three-dimensional structure of the present invention.

FIG. 2 is a schematic structural diagram of a cross-section of the middle portion of the housing in the present invention.

FIG. 3 is a schematic diagram of the structure of point A in FIG. 2 of the present invention.

FIG. 4 is a schematic diagram of the structure of the collecting tank and the connecting pipe in the present invention.

FIG. 5 is a schematic diagram of the structure of the cleaning component of the present invention.

FIG. 6 is a schematic diagram of the structure of point B in FIG. 5 of the present invention.

FIG. 7 is a schematic structural diagram of the plugging assembly of the present invention.

FIG8 is a schematic diagram of the structure of the top plate, the airbag and the bottom plate in the present invention.

FIG. 9 is a schematic diagram of the structure of point C in FIG. 8 of the present invention.

FIG. 10 is a schematic diagram of the structure of the trigger block in the present invention.

FIG. 11 is a schematic diagram of the structure of the cam in the present invention.

In the figure: 1. rectifier body; 2. shell; 3. connecting pipe; 4. filter; 5. mounting strip; 6. reciprocating screw; 7. collecting box; 8. top plate; 9. air bag; 10. bottom plate; 11. movable groove; 12. fixed plate; 13. fan; 14. blocking blade; 15. mounting groove; 16. rotating shaft; 17. cam; 18. cleaning roller; 19. air duct; 20. telescopic tube; 21. 匚-shaped rod; 22. trigger block; 23. rack; 24. gear; 25. roller.

DETAILED DESCRIPTION

Please refer to Figures 1 to 11. In an embodiment of the present invention, a transformer rectifier with a dustproof function includes a rectifier body 1. A heat dissipation port is arranged on the side wall of the rectifier body 1. Preferably, the heat dissipation port is usually arranged on both side walls of the rectifier body 1 and is arranged symmetrically, so as to inhale cold air and form necessary air convection to enhance the heat dissipation inside the rectifier body 1. A shell 2 is installed on the side wall of the rectifier body 1 at the position of the heat dissipation port; a filter screen 4 is installed at one end of the shell 2 away from the rectifier body 1, and a cleaning group is slidably arranged on the side of the filter screen 4 away from the rectifier body 1. A transmission component is arranged at the center of the shell 2, and a blocking mechanism is installed at one end of the shell 2 close to the rectifier body 1. When in use, when the transmission component rotates, the transmission component drives the cleaning component to reciprocate on the filter 4, thereby completing the cleaning work of the filter 4 and avoiding the problem of clogging of the filter 4. At the same time, the rotation of the transmission component will also drive the filter 4 to reciprocate in the up and down directions. During the up and down movement of the filter 4, the dust on it can be further shaken off, thereby improving the cleaning efficiency of the cleaning component. When the filter 4 moves up and down, the filter 4 drives the blocking mechanism to rotate.

Please refer to Figures 1 to 6. Preferably, the cleaning component includes a mounting bar 5; the mounting bar 5 is arranged on a side of the filter 4 away from the rectifier body 1, and a cleaning groove is slidably arranged on the side of the mounting bar 5 close to the filter 4. The cleaning groove is arranged in a semicircular structure, and a cleaning roller 18 is rotatably connected in the cleaning groove. The cleaning roller 18 is provided with elastic bristles specially used for cleaning the filter 4, and the side of the bristles close to the filter 4 is tightly fitted with the filter 4. A reciprocating screw 6 is rotatably arranged at the center of the shell 2, and the reciprocating screw 6 is arranged on a side of the filter 4 away from the rectifier body 1. The mounting bar 5 is rotatably connected to the reciprocating screw 6. When in use, when the transmission assembly rotates, the transmission assembly drives the reciprocating screw 6 to rotate, and the rotation of the reciprocating screw 6 causes the mounting bar 5 to move on the surface of the filter 4 The cleaning roller 18 performs reciprocating motion in the up and down directions, and rollers 25 are fixedly provided at both ends of the cleaning roller 18. The rollers 25 are arranged at both ends of the mounting strip 5 and fit with the side walls of the filter 4. In this way, when the mounting strip 5 moves up and down on the surface of the filter 4, the rollers 25 fit with the filter 4, so the rollers 25 will rotate, and the rotation of the rollers 25 will cause the cleaning roller 18 to rotate. The rotation of the cleaning roller 18 allows the bristles thereon to better extend into the filter holes of the filter 4 to bring out the dust. The upper and lower sides of the cleaning groove are fixedly provided with 匚-shaped rods 21, and the 匚-shaped rods 21 are slidably fitted with the cleaning roller 18. In this way, when the cleaning roller 18 rotates, the bristles thereon are bent and reset under the action of the 匚-shaped rods 21, so that the bristles can shake off the dust on them in the process.

Furthermore, in order to prevent the dust cleaned by the cleaning roller 18 from being attached to the filter screen 4 again with the airflow, preferably, a collecting groove is provided in the side walls of both sides of the shell 2, and a collecting box 7 is installed at the bottom end of the inner wall of the collecting groove. The collecting box 7 is slidably installed at the bottom of the collecting groove by a snap-on manner, which can also facilitate the disassembly and cleaning of the collecting box 7. A telescopic tube 20 is provided at the top of the collecting box 7, and the top of the collecting box 7 is connected to the bottom of the telescopic tube 20. The bottom of the telescopic tube 20 is fixedly connected to the side wall of the collecting groove, and when the collecting box 7 is slidably installed at the bottom of the collecting groove, the top of the collecting box 7 is connected to the bottom of the telescopic tube 20. At this time, the side wall of the collecting box 7 and the collecting groove can be sealed by setting a sealing strip. A connecting plate is fixedly provided at the top of the telescopic tube 20, and the top of the telescopic tube 20 is elastically connected to the top of the inner wall of the collecting groove through the connecting plate. Preferably, The air duct 19 is elastically connected by a spring, and the inner wall of the side wall of the mounting strip 5 is provided with an air duct 19, and a dust suction port is provided on the side wall of the mounting strip 5. The air duct 19 and the cleaning tank are connected through the dust suction port, and there are multiple groups of dust suction port arrays. Connecting pipes 3 are provided at both ends of the air duct 19, and the end of the connecting pipe 3 away from the mounting strip 5 is fixedly connected to the connecting plate, and the air duct 19 is connected to the telescopic tube 20 through the connecting pipe 3. It should be noted that: the top end of one group of connecting pipes 3 is arranged at the bottom end of the mounting strip 5, and the other end of one group of connecting pipes 3 passes through the bottom of the inner side wall of the outer shell 2 and extends into the collecting tank; the other group of connecting pipes 3 is arranged at the other end of the top of the mounting strip 5, and the end of the other group of connecting pipes 3 away from the mounting strip 5 slides through the top of the inner side wall of the outer shell 2 and extends into the collecting tank. Specifically, please refer to Figure 4, the ends of the two groups of connecting pipes 3 away from the mounting strip 5 are fixedly connected to the connecting plate, and are also communicated with the telescopic tube 20.

During specific use, when the mounting strip 5 moves toward the bottom of the housing 2 under the action of the rotation of the reciprocating screw rod 6, one set of connecting tubes 3 will be loosened, and then the corresponding set of connecting plates will move toward the top of the collecting groove under the action of their corresponding springs, while the other set of connecting tubes 3 will be tightened, and then the corresponding set of connecting plates will move upward in the other set of collecting grooves. The upward movement of the connecting plates will cause the telescopic tube 20 to move upward and expand to generate negative pressure, and then the external air is absorbed into the telescopic tube 20 through the connecting tube, the airway 19, and the dust suction port, and then the dust on the cleaning roller 18 is absorbed into the telescopic tube 20, completing the collection of the cleaned dust, avoiding the possibility that the dust may be attached to the filter screen 4 again with the airflow, and also avoiding the dust from being The problem of dust escaping in the air and adhering to the outer shell of the rectifier body 1; and when the mounting bar 5 moves from the bottom of the outer shell 2 to the top of the outer shell 2 under the action of the reciprocating screw 6, the two sets of connecting plates will move downward in the collecting tank through the connecting pipe 3. At this time, in order to prevent the gas in the telescopic tube 20 from being ejected again through the connecting pipe 3 and the air duct 19, causing the dust sucked therein to be ejected, a set of one-way valves that can only intake air into the telescopic tube 20 and a one-way valve that can only exhaust air to the outside can be set at the connection between the connecting pipe 3 and the telescopic tube 20, and a one-way valve that can only exhaust air to the outside can be set on the collecting box 7, thereby avoiding the problem that dust may be ejected out of the telescopic tube 20. Of course, a dust filter needs to be set at the one-way valve on the collecting box 7 to prevent dust from escaping when exhausting air.

Please refer to Figures 2-3 and 11. Preferably, the transmission assembly includes a fan 13; the fan 13 is arranged in the housing 2 and is located between the filter 4 and the rectifier body 1. A fixing plate 12 is arranged on the side of the fan 13 close to the filter 4. Both ends of the fixing plate 12 are fixedly connected to the inner wall of the housing 2. A driving device can be separately arranged on the fan 13 to drive it to rotate, thereby enhancing the effect of air flow in the rectifier body 1 and improving the speed of heat dissipation. The side of the fan 13 close to the filter 4 is connected to a rotating shaft 16 through a belt drive. The rotating shaft 16 is rotatably embedded in the bottom side wall of the housing 2. The end of the rotating shaft 16 away from the fan 13 is transmission-connected to the bottom end of the reciprocating screw 6. It should be noted that a first bevel gear is arranged at the bottom of the reciprocating screw 6, and a second bevel gear meshing with the first bevel gear is arranged on the end of the rotating shaft 16 close to the reciprocating screw 6. In this way, when the fan 13 rotates, the fan 13 drives the rotating shaft 16 to rotate through the belt, and the rotation of the rotating shaft 16 drives the reciprocating screw 6 to rotate.

Furthermore, preferably, mounting grooves 15 are provided at the top and bottom of the inner wall of the shell 2, and the filter 4 is slidably installed in the shell 2 through the mounting grooves 15. In order to facilitate the replacement of the filter 4, a replacement groove for replacing the filter 4 is provided on one side of the shell 2, and a block is provided on the outer side of the replacement groove. The block and the replacement groove are not shown in the figure. The rotating shaft 16 passes through the mounting groove 15 at the bottom of the shell 2, and a cam 17 is fixedly provided on the periphery of the rotating shaft 16. The cam 17 is provided in the mounting groove 15, and the mounting groove 15 is slidably fitted with the bottom of the filter 4. During use, when the rotating shaft 16 rotates, the rotating shaft 16 drives the cam 17 to rotate, and the rotation of the cam 17 will cause the filter 4 to reciprocate up and down in the mounting groove 15, thereby making the filter 4 shake, and then cooperate with the cleaning component to improve the cleaning effect of the filter 4.

Please refer to Figures 1-2 and 7-10. Preferably, the blocking mechanism includes a blocking leaf 14; the blocking leaf 14 is rotatably arranged on one side of the outer shell 2 close to the rectifier body 1, and a plurality of groups of the blocking leaves 14 are arranged in an array in the vertical direction. A trigger component for driving the blocking leaf 14 to rotate is arranged in the side wall of the outer shell 2, and the trigger component cooperates with the top of the filter 4. When in use, when the filter 4 is installed in the outer shell 2, the plurality of groups of blocking leaves 14 are rotated to an angle perpendicular to the filter 4, so that one end of the outer shell 2 relative to the rectifier body 1 is in an open state, and when the filter 4 is replaced or overhauled, the plurality of groups of blocking leaves 14 are rotated and reset to block one end of the outer shell 2 relative to the rectifier body 1, so as to prevent external dust from entering the rectifier body 1 through the rectifier body 1 during the replacement of the filter 4, causing dust to adhere to the components in the rectifier body 1.

Further, preferably, the trigger assembly includes a top plate 8; an airbag 9 is provided at the bottom of the top plate 8, a bottom plate 10 is provided at the bottom of the airbag 9, and a movable groove 11 connected to the mounting groove 15 is provided on the top side wall of the shell 2. The top plate 8, the airbag 9, and the bottom plate 10 are slidably arranged in the movable groove 11, and in order to prevent the top plate 8, the airbag 9, and the bottom plate 10 from slipping in the movable groove 11, the end of the top plate 8 and the bottom plate 10 close to the filter 4 can be slidably connected to the side wall of the shell 2, and a spring can be provided between the top of the top plate 8 and the inner wall of the movable groove 11, so that the top plate 8 can automatically move downward and reset when there is no other force. Trigger blocks 22 are fixedly provided at both ends of the bottom plate 10, and the trigger blocks 22 are provided with an inclined surface facing the filter 4. The trigger block 22 is arranged on the side of the bottom plate 10 corresponding to the filter 4. When the filter 4 is installed on the outer shell 2, the bottom plate 10 moves upward a certain distance through the top of the filter 4 and the inclined surface of the trigger block 22, so that the multiple groups of blocking leaves 14 are rotated to a state perpendicular to the filter 4; gears 24 are fixedly arranged at both ends of the blocking leaves 14, and racks 23 corresponding to the gears 24 are fixedly arranged on both sides of the top plate 8. The gears 24 and the racks 23 are both arranged in the side walls of the outer shell 2, and the top and bottom of the inner wall of the outer shell 2 are fixedly provided with sealing plates that cooperate with the blocking leaves 14. In this way, when the uppermost and lowermost blocking leaves 14 are rotated to be vertical to the bottom of the outer shell 2, the sealing plates can be used to block the blocking leaves 14 and the side walls of the outer shell 2 to improve their sealing performance.

In specific use, when the filter screen 4 is not installed on the shell 2, the multiple groups of blocking leaves 14 block one end of the shell 2, the bottom plate 10 fits with the bottom of the movable groove 11, and the multiple groups of blocking leaves 14 are also sealed by the structure of the sealing strip and the sealing groove; when the filter screen 4 is installed on the shell 2, the two ends of the filter screen 4 slide with the trigger block 22 to make the bottom plate 10 move upward by a certain distance, thereby allowing the airbag 9 and the top plate 8 to move upward, and the top plate 8 moves upward through the rack 23 and the gear 24. The closing causes the blocking leaf 14 to rotate, and the blocking leaf 14 rotates to an angle perpendicular to the filter screen 4, so that one end of the housing 2 is opened, and then the fan 13 rotates, driving the shaft 16 to rotate, and the rotation of the shaft 16 causes the filter screen 4 to move up and down through the cam 17. The up and down movement of the cam 17 causes the bottom plate 10, the air bag 9, and the top plate 8 to move with the filter screen 4, and the up and down reciprocating movement of the top plate 8 drives the rack 23 to move, and then the blocking leaf 14 reciprocates through the gear 24. At this time, the blocking leaf 14 It swings but will not block one end of the shell 2, and the blocking leaf 14 can guide the airflow entering the rectifier body 1 by swinging, so that the airflow entering the rectifier body 1 is blown to a larger range, thereby dissipating heat for more components; if there is an extreme problem such as a short circuit in the circuit or component in the rectifier body 1 and an open flame occurs, the open flame will burn the airbag 9, causing the airbag 9 to break and then the object in the airbag 9 to spray into the rectifier body 1, and the airbag 9 can be filled with gas for fire extinguishing, etc. Since the airbag 9 body is under the pressure of the spring corresponding to the top plate 8, the breaking of the airbag 9 will allow the gas inside it to quickly enter the rectifier body 1 for fire extinguishing. At the same time, the top plate 8 moves downward and fits with the bottom plate 10. The movement of the top plate 8 causes the rack 23 to move downward, and then the blocking leaf 14 is rotated through the gear 24 to block one end of the shell 2, so that the external gas no longer enters the rectifier body 1, thus cooperating with the gas in the airbag 9 to control the flame and even extinguish the fire.

Claims (10)

1. A transformer rectifier with a dustproof function, comprising a rectifier body, a heat dissipation port being arranged on a side wall of the rectifier body, and a shell being installed on the side wall of the rectifier body at a position of the heat dissipation port; characterized in that a filter is installed at one end of the shell away from the rectifier body, a cleaning component is slidably arranged on a side of the filter away from the rectifier body, a transmission component is arranged at the center of the shell, and a blocking mechanism is installed at one end of the shell close to the rectifier body, when the transmission component rotates, the transmission component drives the cleaning component to reciprocate on the filter, and at the same time, the rotation of the transmission component also drives the filter to reciprocate in the up and down directions, and when the filter moves up and down, the filter drives the blocking mechanism to rotate. 2. A transformer rectifier with dustproof function according to claim 1, characterized in that the cleaning component includes a mounting bar; the mounting bar is arranged on the side of the filter away from the rectifier body, and a cleaning groove is slidably arranged on the side of the mounting bar close to the filter, a cleaning roller is rotatably connected in the cleaning groove, a reciprocating screw is rotatably arranged at the center of the shell, and the reciprocating screw is arranged on the side of the filter away from the rectifier body, and the mounting bar is rotatably connected to the reciprocating screw. 3. A transformer rectifier with dustproof function according to claim 2, characterized in that rollers are fixedly provided at both ends of the cleaning roller, the rollers are arranged at both ends of the mounting strip and fit with the side walls of the filter, and U-shaped rods are fixedly provided on the upper and lower sides of the cleaning groove, and the U-shaped rods are slidingly fitted with the cleaning roller. 4. A transformer rectifier with dustproof function according to claim 3, characterized in that collecting grooves are arranged in the side walls of both sides of the shell, a collecting box is installed at the bottom end of the inner wall of the collecting groove, a telescopic tube is arranged at the top of the collecting box, and the collecting box and the telescopic tube are communicated, the bottom of the telescopic tube is fixedly connected to the side wall of the collecting groove, the top of the telescopic tube is elastically connected to the top of the inner wall of the collecting groove, an air duct is arranged on the inner wall of the side wall of the mounting bar, and a dust suction port is arranged on the side wall of the mounting bar, the air duct and the cleaning groove are communicated through the dust suction port, connecting pipes are arranged at both ends of the air duct, the end of the connecting pipe away from the mounting bar is fixedly connected to the connecting plate, and the air duct is communicated with the telescopic tube through the connecting pipe. 5. A transformer rectifier with dustproof function according to claim 2, characterized in that the transmission assembly includes a fan; the fan is arranged in the shell and is located between the filter and the rectifier body, a fixing plate is arranged on the side of the fan close to the filter, both ends of the fixing plate are fixedly connected to the inner wall of the shell, the side of the fan close to the filter is connected to a rotating shaft through a belt drive, the rotating shaft is rotatably embedded in the bottom side wall of the shell, and the end of the rotating shaft away from the fan is transmission-connected to the bottom end of the reciprocating screw. 6. A transformer rectifier with dustproof function according to claim 5, characterized in that the top and bottom of the inner wall of the shell are provided with mounting grooves, the filter is slidably installed in the shell through the mounting grooves, the rotating shaft passes through the mounting groove at the bottom of the shell, and a cam is fixedly provided on the periphery of the rotating shaft, the cam is arranged in the mounting groove, and the mounting groove is slidably fitted with the bottom of the filter. 7. A transformer rectifier with dustproof function according to claim 6, characterized in that the sealing mechanism includes sealing leaves; the sealing leaves are rotatably arranged on one side of the outer shell close to the rectifier body, and there are multiple groups of sealing leaves, and a trigger component for driving the sealing leaves to rotate is arranged in the side wall of the outer shell, and the trigger component cooperates with the top of the filter. 8. A transformer rectifier with dustproof function according to claim 7, characterized in that the trigger assembly includes a top plate; an airbag is provided at the bottom of the top plate, a bottom plate is provided at the bottom of the airbag, a movable groove connected to the mounting groove is provided on the top side wall of the shell, the top plate, the airbag and the bottom plate are slidably arranged in the movable groove, trigger blocks are fixedly arranged at both ends of the bottom plate, and the trigger block is arranged on one side of the bottom plate corresponding to the filter. 9. A transformer rectifier with dustproof function according to claim 8, characterized in that gears are fixedly provided at both ends of the blocking leaf, racks corresponding to the gears are fixedly provided on both sides of the top plate, and the gears and racks are both arranged in the side walls of the outer shell. 10. A transformer rectifier with dustproof function according to claim 7, characterized in that sealing plates cooperating with sealing leaves are fixedly provided on the top and bottom of the inner wall of the shell.