CN205070189U - Heat dissipation dust removal integral type block terminal - Google Patents

Abstract

The heat dissipation and dust removal integrated distribution box includes a box in the shape of a cuboid. The box is composed of a left side panel, a right side panel, a top panel, a bottom panel, a rear side panel and a box door. Shutters, the inner wall of the left side panel and the inner wall of the right side panel are provided with a cleaning structure at the shutter, and a left vertical panel and a right vertical panel are arranged between the top panel and the bottom panel. The left vertical panel is parallel to and adjacent to the left panel, and the right vertical panel Parallel to and adjacent to the right side plate, the left vertical plate and the right vertical plate are uniformly provided with ventilation holes, the right side of the left vertical plate and the left side of the right vertical plate are respectively equipped with electrical components, and the top of the electrical components is equipped with a rotary dust blowing mechanism ; An air volume rotation adjustment mechanism is provided between the center of the top plate and the center of the bottom plate. The utility model has the advantages of simple structure, easy operation, good heat dissipation effect, low energy consumption, strong reliability and good dustproof effect. service life.

Description

Heat dissipation and dust removal integrated distribution box

technical field

The utility model relates to an electric device, in particular to an integrated power distribution box for heat dissipation and dust removal.

Background technique

The distribution box is a commonly used electrical equipment in the power industry. The heat generated by the electrical components installed in the distribution box needs to be discharged continuously to ensure the normal operation of the electrical components. At present, the method and structure adopted for heat dissipation of the electrical components in the distribution box have the following defects: 1. Since the distribution box is generally high in height, vertical ventilation is adopted, the air path is long, and the cold air at the end of the air path has been blocked. Heating, so the temperature in the distribution box is still high, and the heat dissipation effect is poor, resulting in shortened service life of electrical components; 2. There is more dust at the air inlet of the air duct, so that the wind entering the distribution box carries more dust; 3. 1. After the electrical components are used for a long time, dust is easy to accumulate in the depressions and irregular protrusions of the electrical components, which reduces the service life of the electrical components and forms a safety hazard (possibly causing a short circuit); 4. The air volume of the air circuit is not adjusted. Mechanism, large energy consumption, low cooling efficiency.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a heat dissipation and dust removal integrated distribution box with good heat dissipation effect, adjustable heat dissipation air volume, less dust carried in the heat dissipation air, low energy consumption and low heat dissipation efficiency.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the heat dissipation and dust removal integrated distribution box includes a box in the shape of a cuboid, and the box consists of a left side panel, a right side panel, a top panel, a bottom panel, a rear side panel and a box. The door is composed of a horizontal partition between the left and right panels, and shutters are respectively installed on the left and right panels. There is a left vertical board and a right vertical board between the base plate and the left vertical board. Holes, the right side of the left vertical plate and the left side of the right vertical plate are respectively equipped with electrical components, and the top of the electrical components is equipped with a rotary dust blowing mechanism; between the center of the top plate and the center of the bottom plate is an air volume rotation adjustment mechanism;

The air volume rotation adjustment mechanism includes an outer sleeve, an inner sleeve and a servo motor. The upper and lower ends of the outer sleeve are fixedly connected to the top plate and the bottom plate respectively. The inner sleeve is coaxially arranged in the outer sleeve, and the servo motor is located in the outer sleeve and fixed on the bottom plate The main shaft of the servo motor is coaxially connected with a mounting column through a coupling. The inner diameter of the mounting column is equal to the inner diameter of the inner sleeve. The lower end of the inner sleeve is inserted into the mounting column and contacts the coupling. The space is fixed and connected by mounting screws along the horizontal radial direction; the outer casing is uniformly provided with outer arc holes, and the inner casing is evenly provided with inner arc holes, both of which are horizontally arranged and aligned One correspondence; there is a gap between the inner wall of the outer casing and the outer wall of the inner casing, the inner wall of the outer casing is provided with a positioning ring and a sliding sleeve located on the upper side of the positioning ring, the outer wall of the sliding sleeve is tightly matched with the inner wall of the outer casing, and the inner wall of the sliding sleeve and the inner Casing outer wall clearance fit;

There is an exhaust fan and a mounting frame on the upper surface of the roof plate. The air inlet of the exhaust fan is connected with a flexible hose. The flexible hose is equipped with a clamp-type wind speed adjustment mechanism. The mounting frame is detachably connected with a straight pipe joint, and the straight pipe joint is vertically arranged , the upper end of the straight pipe joint is connected with the flexible hose through the elbow joint, and the upper end of the inner sleeve extends coaxially into the straight pipe joint through the top plate, and a rotating sealing structure is arranged between the straight pipe joint and the inner sleeve; the top plate There is a sealing ring for the sealing fit of the outer wall of the inner casing;

The clamp-type wind speed adjustment mechanism includes a fixed plate arranged vertically. One side of the fixed plate is provided with an adjusting motor and a square tube arranged vertically. The power output end of the adjusting motor is connected to a gear. There is a box outside, the square tube is slidingly connected with a rack, the side of the square tube is provided with a gap communicating with the inside of the square tube, one side of the gear extends into the gap and meshes with the rack, and the upper end of the rack is connected axially There is a push-pull rod, the upper end of the push-pull rod is connected with a sliding frame, the upper part of the fixed plate is hinged with a rear splint and a front splint, a rear slide rail is provided on the front side of the lower end of the rear splint, a front slide rail is provided on the rear side of the lower end of the front splint, the rear slide rail and the front splint The distance between the lower ends of the slide rails is greater than the distance between the upper ends of the rear slide rails and the front slide rails. The rear slide rails and the front slide rails are symmetrical and have the same structure about the vertical front and rear. There are two front sliders sliding along the front slide rail on the front side of the sliding frame, a guide bar is provided along the length direction in the middle of the front surface of the rear slide rail, and a guide bar is provided in the middle of the rear side of the rear slider to slide and cooperate with the guide bar. The upper end of the rear splint is hinged with a semicircular rear clamp ring, and the upper end of the front splint is hinged with a semicircular front clamp ring. The openings of the front clamp ring and the rear clamp ring are set opposite to each other. Between the clamp ring and the front clamp ring, between the rear splint and the front splint are connected by a tension spring, and the tension spring is located on the lower side of the hinge point between the rear splint and the fixed plate;

The rotary sealing structure includes an upper limit ring on the outside of the upper end of the inner sleeve and a lower limit ring on the lower end of the straight pipe joint. The lower limit ring is detachably connected to the straight pipe joint through fastening screws. The upper limit ring and the lower limit ring There is a sealing sleeve made of polyurethane material between them, and the sealing sleeve is in sliding and sealing cooperation with the outer wall of the inner casing and the inner wall of the straight pipe joint respectively.

The dust removal structure includes a filter net pocket, which is fastened on the inner wall of the left side panel and the right side panel.

The rotary dust blowing mechanism includes a rotary motor, a micro-air compressor and a nozzle. The rotary motor is installed on the electrical components. The main shaft of the rotary motor is connected to the micro-air compressor through a rotating shaft. The outlet of the micro-air compressor is connected to the inlet of the nozzle through a high-pressure pipe. Connected, the air jet of the nozzle is slanted downward towards the upper surface of the electrical component.

The inner wall of the inner casing is provided with at least two reinforcing ribs along the axial direction.

Adopting the above-mentioned technical solution, the heat dissipation principle of the utility model is as follows: open the exhaust fan, the cold air outside the box enters the box through the louvers, and the dust or dust carried in the cold air is filtered by the filter bag and then enters the electrical components through the ventilation holes in turn Surroundings, the heat emitted by the electrical components enters the inner sleeve along with the airflow through the outer arc hole and the inner arc hole, then passes through the upper end of the inner sleeve, elbow joints and flexible hoses, and is finally extracted by the exhaust fan.

The specific structural features of the utility model have the following beneficial effects:

1. The filter bag temporarily stores the dust or dust in the filter bag after filtering. After a while, remove the filter bag for cleaning and then install it.

2. A temperature sensor for monitoring the temperature inside the box is also installed in the box. When the temperature in the box is low or high, the servo motor can be started and/or the motor can be adjusted to adjust the air volume; when the servo motor is started, the drive inside When the sleeve rotates, since the length of the inner sleeve is equivalent to the height of the box, the reinforcing ribs set on the inner wall of the inner sleeve can enhance the torque of the inner sleeve, and the rotation of the inner sleeve can adjust the distance between the inner arc hole and the outer arc hole. The size of the coincidence, thereby adjusting the size of the exhaust air volume; when the adjustment motor is started, the rear clamp ring and the front clamp ring will clamp the flexible hose, and the exhaust air volume can be adjusted through the distance between the rear clamp ring and the front clamp ring. The specific adjustment process is as follows: by manipulating and adjusting the motor, the motor drives the gear to rotate, the gear drives the rack meshed with it to move to the right or left along the square tube, and the push-pull rod coaxial with the rack pushes or pulls the sliding frame upwards or downwards. Moving down, under the action of the tension spring, the rear slider on the rear splint and the front slider on the front splint always slide along the rear slide rail and the front slide rail respectively. The distance between the slide rail and the front slide rail increases, and under the action of the leverage principle, the rear clamp ring on the upper end of the rear splint and the front clamp ring on the upper end of the front splint tightly clamp the flexible hose, and the cross-sectional area of the flexible hose becomes smaller. The exhaust air volume is reduced. Similarly, when the push-pull rod is pulled down, the cross-sectional area of the flexible hose becomes larger and the air extraction volume increases. In this way, the exhaust air volume in the box can be adjusted, thereby achieving the effect of adjusting the good heat dissipation in the box.

3. After a period of time, a layer of dust will adhere to the upper surface of the electrical components, start the rotating motor and the micro air compressor, the rotating motor will drive the shaft, the micro air compressor and the nozzle to rotate 360°, and the high pressure airflow generated by the micro air compressor will be released by the nozzle The dust on the surface of the electrical components is blown up, and the dust is drawn out of the box by the exhaust fan.

4. The sealing sleeve made of polyurethane in the rotating sealing structure not only has a good sealing effect, but also is smooth and has good wear resistance; the upper limit ring and the lower limit ring are used to limit the position of the sealing sleeve. When the sealing sleeve needs to be replaced, it can be Unscrew the fastening screw, take off the lower limit ring to take out the sealing sleeve and install a new sealing sleeve.

5. The lower end of the inner casing is inserted into the mounting column and is in contact with the coupling. The inner casing and the mounting column are fixedly connected by mounting screws along the horizontal radial direction, which not only supports the gravity of the inner casing itself, but also It can provide transmission torque for the inner casing.

6. The sliding sleeve plays the role of limiting the inner casing from tilting, and can be replaced when worn out. The positioning ring is used to limit the sliding sleeve from moving downward.

To sum up, the utility model has the advantages of simple structure, easy operation, good heat dissipation effect, low energy consumption, strong reliability and good dustproof effect. Thereby prolonging the service life of electrical components.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is an enlarged view of the rotary sealing structure in Fig. 1;

Fig. 3 is an enlarged view of place A in Fig. 1;

Fig. 4 is the enlarged view of place B in Fig. 1;

Fig. 5 is an enlarged left view of the clamp-type wind speed regulating mechanism in Fig. 1;

Fig. 6 is a schematic structural view of the rear slide rail in Fig. 5;

Fig. 7 is a schematic structural diagram of the rear slider in Fig. 5 .

detailed description

As shown in Figures 1-7, the heat dissipation and dust removal integrated distribution box of the present invention includes a box in the shape of a cuboid, and the box consists of a left side panel 1, a right side panel 2, a top panel 3, a bottom panel 4, and a rear The plate 5 and the box door (not shown in the figure) are composed of a partition plate 6 horizontally arranged between the left plate 1 and the right plate 2, and shutters 7 are respectively arranged on the left plate 1 and the right plate 2. The inner wall of the board 1 and the inner wall of the right board 2 are provided with a cleaning structure at the shutter 7, and a left vertical board 8 and a right vertical board 9 are arranged between the top board 3 and the bottom board 4, and the left vertical board 8 is parallel to the left side board 1. Adjacent, the right vertical plate 9 is parallel and adjacent to the right vertical plate 2, and the left vertical plate 8 and the right vertical plate 9 are evenly provided with exhaust holes 10, and the left vertical plate 8 right side and the right vertical plate 9 left sides are respectively provided with electrical appliances. Component 11, the top of the electrical component 11 is provided with a rotary dust blowing mechanism.

An air volume rotation adjustment mechanism is provided between the center of the top plate 3 and the center of the bottom plate 4; the air volume rotation adjustment mechanism includes an outer sleeve 12, an inner sleeve 13 and a servo motor 14, and the upper and lower ends of the outer sleeve 12 are fixedly connected to the top plate 3 and the base plate 4 respectively. The inner casing 13 is coaxially arranged in the outer casing 12, the servo motor 14 is located in the outer casing 12 and fixed on the base plate 4, the main shaft of the servo motor 14 is coaxially connected with a mounting column 16 through a coupling 15, and the mounting column The inner diameter of 16 is equal to the inner diameter of the inner sleeve 13, the lower end of the inner sleeve 13 is inserted in the installation column 16 and contacts with the coupling 15, and the installation screw 17 along the horizontal radial direction is passed between the inner sleeve 13 and the installation column 16 Fixed connection; the outer casing 12 is uniformly provided with an outer arc-shaped hole 18, and the inner casing 13 is evenly provided with an inner arc-shaped hole 19, and the outer arc-shaped hole 18 and the inner arc-shaped hole 19 are all horizontally arranged and correspond to each other; There is a gap between the inner wall of the tube 12 and the outer wall of the inner sleeve 13, and the inner wall of the outer sleeve 12 is provided with a positioning ring 20 and a sliding sleeve 21 located on the upper side of the positioning ring 20, and the outer wall of the sliding sleeve 21 is tightly matched with the inner wall of the outer sleeve 12. The inner wall of the sleeve 21 is in clearance fit with the outer wall of the inner casing 13 .

The upper surface of the top plate 3 is provided with an exhaust fan 22 and a mounting bracket 23, the air inlet of the exhaust fan 22 is connected with a flexible hose 24, the flexible hose 24 is provided with a clamp type wind speed adjustment mechanism 25, and the mounting bracket 23 is detachably connected with a straight The pipe joint 26 and the straight pipe joint 26 are arranged vertically. The upper end of the straight pipe joint 26 is connected with the flexible hose 24 through the elbow joint 27. A rotary sealing structure 28 is provided between the pipe joint 26 and the inner casing 13 ; and a sealing ring 29 is provided on the top plate 3 to seal the outer wall of the inner casing 13 .

The clamp-type wind speed regulating mechanism 25 includes a fixed plate 30 arranged vertically, and the surface of one side of the fixed plate 30 is provided with an adjusting motor 31 and a square tube 32 arranged in the vertical direction. 32 side parts are provided with box body 59 outside gear 33 and regulating motor 31, and rack 34 is slidably connected in square tube 32, and square tube 32 side parts are provided with the gap 35 that communicates with square tube 32 inside, and gear 33 side stretches out. into the gap 35 and engaged with the rack 34, the upper end of the rack 34 is coaxially connected with a push-pull rod 36, the upper end of the push-pull rod 36 is connected with a sliding frame 37, the upper part of the fixed plate 30 is hinged with a rear splint 38 and a front splint 39, Back clamping plate 38 lower end front sides are provided with rear slide rail 40, and front clamping plate 39 lower end rear sides are provided with front slide rail 41, and the distance between rear slide rail 40 and front slide rail 41 lower ends is greater than rear slide rail 40 and front slide rail 41 The distance between the upper ends, the rear slide rail 40 and the front slide rail 41 are symmetrical and have the same structure about the vertical front and back. There are two front sliders 43 that slide along the front slide rail 41, the middle part of the front surface of the rear slide rail 40 is provided with a guide bar 44 along the length direction, and the middle of the rear side of the rear slider 42 is provided with a guide groove that is slidably matched with the guide bar 44 45; the upper end of the rear splint 38 is hinged with a semicircular rear clamp ring 46, and the upper end of the front splint 39 is hinged with a semicircular front clamp ring 47. 24 is clamped between the rear clamping ring 46 and the front clamping ring 47, and is connected by a tension spring 48 between the rear clamping plate 38 and the front clamping plate 39, and the tensioning spring 48 is positioned at the lower side of the rear clamping plate 38 and the fixed plate 30 hinge point.

The rotary sealing structure 28 includes an upper limit ring 50 arranged outside the upper end of the inner sleeve 13 and a lower limit ring 49 arranged on the lower end surface of the straight pipe joint 26, and the lower limit ring 49 is detachably connected to the straight pipe joint 26 by fastening screws 51 , Between the upper limit ring 50 and the lower limit ring 49, there is a sealing sleeve 52 made of polyurethane material, and the sealing sleeve 52 is respectively in sliding sealing cooperation with the outer wall of the inner sleeve 13 and the inner wall of the straight pipe joint 26.

The dust removal structure includes a filter net pocket 53, which is buckled on the inner walls of the left side plate 1 and the right side plate 2.

Rotary dust blowing mechanism comprises rotary motor 54, miniature air compressor 55 and nozzle 57, and rotary motor 54 is located on the electric element 11, and the main shaft of rotary motor 54 is connected with miniature air compressor 55 by rotating shaft 56, and miniature air compressor 55 The outlet of the nozzle is connected to the inlet of the nozzle 57 through a high-pressure pipe, and the jet port of the nozzle 57 faces obliquely downward to the upper surface of the electrical component 11; the inner wall of the inner sleeve 13 is provided with at least two reinforcing ribs 58 along the axial direction.

The heat dissipation principle of the utility model is as follows: open the exhaust fan 22, the cold wind outside the box enters the box body through the louvers 7, and the dust or dust carried in the cold wind is filtered by the filter bag 53 and then enters the electrical components 11 through the exhaust hole 10 in turn. Around, the heat dissipated by the electrical components 11 enters the inner casing 13 through the outer arc-shaped hole 18 and the inner arc-shaped hole 19 along with the air flow, and then passes through the upper end of the inner casing 13, the elbow joint 27 and the flexible hose 24, and finally Extracted by the exhaust fan 22.

A temperature sensor for monitoring the temperature in the casing is also installed in the casing. When the temperature in the casing is low or high, the servo motor 14 and/or the regulating motor 31 can be started to adjust the exhaust air volume; The inner sleeve 13 rotates, because the length of the inner sleeve 13 is equivalent to the height of the box body, the reinforcing ribs arranged on the inner wall of the inner sleeve 13 can enhance the torque of the inner sleeve 13, the inner sleeve 13 rotates, and the inner arc hole 19 can be adjusted The size that overlaps with the outer arc-shaped hole 18, thereby adjusting the size of the exhaust air; when the adjustment motor 31 is started, the rear clamp ring 46 and the front clamp ring 47 clamp the flexible hose 24, and pass through the rear clamp ring 46 and the front clamp The distance between the rings 47 is adjusted for the draft volume. The specific adjustment process is as follows: by controlling the adjustment motor 31, the adjustment motor 31 drives the gear 33 to rotate, the gear 33 drives the rack 34 meshed with it to move to the right or left along the square tube 32, and the push-pull rod 36 coaxial with the rack 34 Push or pull the sliding frame 37 to move up or down, under the effect of the extension spring 48, the rear slider 42 on the rear clamping plate 38 and the front slider 43 on the front clamping plate 39 always slide along the rear slide rail 40 and the front slide respectively all the time. Rail 41 slides, and when push-pull bar 36 pushes upwards, slide frame 37 moves upwards, and the distance between rear slide rail 40 and front slide rail 41 increases, and under the effect of lever principle, the rear clamping ring 46 of rear clamping plate 38 upper ends and The front clamping ring 47 on the upper end of the front splint 39 tightly clamps the flexible hose 24, the cross-sectional area of the flexible hose 24 becomes smaller, and the ventilation volume decreases. Similarly, when the push-pull rod 36 is pulled downward, the cross-sectional area of the flexible hose 24 becomes larger. , the exhaust air volume is increased, so that the exhaust air volume in the box can be adjusted, so as to achieve the effect of adjusting the good heat dissipation in the box.

The utility model runs for a period of time, and a layer of dust will be attached to the upper surface of the electrical component 11, and the rotary motor 54 and the miniature air compressor 55 are started, and the rotary motor 54 drives the rotating shaft 56, the miniature air compressor 55 and the nozzle 57 to rotate 360°, and the miniature air compressor The high-pressure airflow produced by the compressor 55 is ejected by the nozzle 57, and the dust on the surface of the electrical component is blown up, and the dust is extracted out of the casing by the exhaust fan 22 again. The filter net pocket 53 is temporarily stored in the filter net pocket 53 after dust or dust is filtered, and after a period of time, the filter net pocket 53 is taken off for cleaning and then installed.

The above embodiments are only used to illustrate and not limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (4)

1. The heat dissipation and dust removal integrated distribution box includes a box in the shape of a cuboid. The box is composed of a left side panel, a right side panel, a top panel, a bottom panel, a rear side panel and a box door. There are partitions horizontally, which are characterized in that: the left side board and the right side board are respectively provided with louvers, the inner wall of the left side board and the right side board are provided with dust cleaning structures at the shutters, and there is a left stand between the top board and the bottom board. board and the right vertical board, the left vertical board is parallel to and adjacent to the left side board, the right vertical board is parallel to and adjacent to the right The left side of the right vertical plate is equipped with electrical components, and the top of the electrical components is equipped with a rotary dust blowing mechanism; between the center of the top plate and the center of the bottom plate is an air volume rotation adjustment mechanism; The air volume rotation adjustment mechanism includes an outer sleeve, an inner sleeve and a servo motor. The upper and lower ends of the outer sleeve are fixedly connected to the top plate and the bottom plate respectively. The inner sleeve is coaxially arranged in the outer sleeve, and the servo motor is located in the outer sleeve and fixed on the bottom plate The main shaft of the servo motor is coaxially connected with a mounting column through a coupling. The inner diameter of the mounting column is equal to the inner diameter of the inner sleeve. The lower end of the inner sleeve is inserted into the mounting column and contacts the coupling. The space is fixed and connected by mounting screws along the horizontal radial direction; the outer casing is uniformly provided with outer arc holes, and the inner casing is evenly provided with inner arc holes, both of which are horizontally arranged and aligned One correspondence; there is a gap between the inner wall of the outer casing and the outer wall of the inner casing, the inner wall of the outer casing is provided with a positioning ring and a sliding sleeve located on the upper side of the positioning ring, the outer wall of the sliding sleeve is tightly matched with the inner wall of the outer casing, and the inner wall of the sliding sleeve and the inner Casing outer wall clearance fit; There is an exhaust fan and a mounting frame on the upper surface of the roof plate. The air inlet of the exhaust fan is connected with a flexible hose. The flexible hose is equipped with a clamp-type wind speed adjustment mechanism. The mounting frame is detachably connected with a straight pipe joint, and the straight pipe joint is vertically arranged , the upper end of the straight pipe joint is connected with the flexible hose through the elbow joint, and the upper end of the inner sleeve extends coaxially into the straight pipe joint through the top plate, and a rotating sealing structure is arranged between the straight pipe joint and the inner sleeve; the top plate There is a sealing ring for the sealing fit of the outer wall of the inner casing; The clamp-type wind speed adjustment mechanism includes a fixed plate arranged vertically. One side of the fixed plate is provided with an adjusting motor and a square tube arranged vertically. The power output end of the adjusting motor is connected to a gear. There is a box outside, the square tube is slidingly connected with a rack, the side of the square tube is provided with a gap communicating with the inside of the square tube, one side of the gear extends into the gap and meshes with the rack, and the upper end of the rack is connected axially There is a push-pull rod, the upper end of the push-pull rod is connected with a sliding frame, the upper part of the fixed plate is hinged with a rear splint and a front splint, a rear slide rail is provided on the front side of the lower end of the rear splint, a front slide rail is provided on the rear side of the lower end of the front splint, the rear slide rail and the front splint The distance between the lower ends of the slide rails is greater than the distance between the upper ends of the rear slide rails and the front slide rails. The rear slide rails and the front slide rails are symmetrical and have the same structure about the vertical front and rear. There are two front sliders sliding along the front slide rail on the front side of the sliding frame, a guide bar is provided along the length direction in the middle of the front surface of the rear slide rail, and a guide bar is provided in the middle of the rear side of the rear slider to slide and cooperate with the guide bar. The upper end of the rear splint is hinged with a semicircular rear clamp ring, and the upper end of the front splint is hinged with a semicircular front clamp ring. The openings of the front clamp ring and the rear clamp ring are set opposite to each other. Between the clamp ring and the front clamp ring, between the rear splint and the front splint are connected by a tension spring, and the tension spring is located on the lower side of the hinge point between the rear splint and the fixed plate; The rotary sealing structure includes an upper limit ring on the outside of the upper end of the inner sleeve and a lower limit ring on the lower end of the straight pipe joint. The lower limit ring is detachably connected to the straight pipe joint through fastening screws. The upper limit ring and the lower limit ring There is a sealing sleeve made of polyurethane material between them, and the sealing sleeve is in sliding and sealing cooperation with the outer wall of the inner casing and the inner wall of the straight pipe joint respectively. 2. The heat dissipation and dust removal integrated distribution box according to claim 1, characterized in that: the dust cleaning structure includes a filter net pocket, and the filter net pocket is buckled on the inner wall of the left side panel and the right side panel. 3. The heat dissipation and dust removal integrated power distribution box according to claim 1, characterized in that: the rotary dust blowing mechanism includes a rotary motor, a miniature air compressor and a nozzle, the rotary motor is arranged on the electrical component, and the main shaft of the rotary motor passes through The rotating shaft is connected with the micro-air compressor, the outlet of the micro-air compressor is connected with the inlet of the nozzle through a high-pressure pipe, and the air jet of the nozzle is inclined downward toward the upper surface of the electrical component. 4. The heat dissipation and dust removal integrated distribution box according to claim 1, wherein the inner wall of the inner sleeve is provided with at least two reinforcing ribs along the axial direction.