A heat dissipation structure of a box-type transformer

Abstract

The application discloses a heat dissipation structure of a box-type transformer and relates to the technical field of transformers. The heat dissipation structure comprises a transformer box, a box door is installed on the transformer box, a transformer assembly is installed in the transformer box, an air outlet straight pipe and an air inlet straight pipe are installed on the bottom side of the transformer box, hinging mechanisms are installed on the bottom sides of the air outlet straight pipe and the air inlet straight pipe, two ends of a heat dissipation coil pipe are respectively installed on the two hinging mechanisms, and the top end of the heat dissipation coil pipe is installed on the hinging mechanism of the air outlet straight pipe. The heat dissipation structure is provided with the air outlet straight pipe, the air inlet straight pipe, the heat dissipation coil pipe and a cross support frame, can realize heat insulation by conveying of the air outlet straight pipe and the air inlet straight pipe in shallow soil, avoid the influence of temperature fluctuation of the shallow soil on heat dissipation, concentrate heat dissipation on deep stable soil through the heat dissipation coil pipe, improve the heat dissipation effect, increase the heat exchange area while adapting to soil settlement, are favorable for heat dissipation, and further improve the heat dissipation effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformers, in particular to a heat dissipation structure of a box-type transformer. BACKGROUND

[0002] The box-type transformer is composed of a transformer, a high-voltage control device and a low-voltage control device, and a large amount of heat is generated in the coil winding part during operation. In order to meet the working efficiency of the transformer, it is necessary to cool it down. The patent with the patent number CN219642637U discloses a heat dissipation structure for a box-type transformer, which comprises an iron core inside the box-type transformer, a primary winding and a secondary winding fixed at both ends of the iron core, and a plurality of heat dissipation grooves are arranged at the top and bottom outer walls of the iron core, and a plurality of semiconductor refrigerating plates are installed in the heat dissipation grooves, and a plurality of heat absorbing plates are installed on both sides of the iron core, and a plurality of fixing frames are installed at the top and bottom of the outer walls on both sides of the iron core, and a plurality of sealing boxes are installed on the outer walls of the fixing frames. The heat dissipation structure has the advantages of directly dissipating heat from the iron core by the semiconductor refrigerating plates, pumping oil into the hollow copper plate, and cooling the oil by the cooling fan, which can reduce the temperature during operation and the temperature of the working environment, and maintain the working efficiency of the transformer.

[0003] In the prior art, the heat dissipation of the box-type transformer is usually achieved by air cooling or oil immersion. Air cooling is mainly achieved by accelerating the heat exchange between the inside and outside of the transformer box. In the high-temperature and dry areas, the surface air temperature is high, so the heat dissipation effect is not obvious. Although the heat dissipation effect of the oil immersion method is good, the cost is high, the oil circuit system is complex, and there is a risk of oil leakage. Therefore, we propose a heat dissipation structure of a box-type transformer. SUMMARY

[0004] The purpose of the present application is to provide a heat dissipation structure of a box-type transformer to solve the problems in the background art.

[0005] To achieve the above object, the application provides the following technical scheme: a heat dissipation structure of a box-type transformer, comprising a transformer box, a box door installed on the transformer box, a transformer assembly installed in the transformer box, an air outlet straight pipe and an air inlet straight pipe installed on the bottom side of the transformer box, a hinging mechanism installed on the bottom side of the air outlet straight pipe and the air inlet straight pipe, two ends of a heat dissipation coil pipe respectively installed on the two hinging mechanisms, the top end of the heat dissipation coil pipe installed on the hinging mechanism of the air outlet straight pipe, the bottom end of the heat dissipation coil pipe installed on the hinging mechanism of the air inlet straight pipe, a supporting mechanism installed on the heat dissipation coil pipe for increasing the supporting force and assisting heat dissipation, an air outlet filtering mechanism installed on the air outlet straight pipe for preventing dust from entering, a Venturi mechanism installed on the air inlet straight pipe for accelerating air exchange, a wall scraping mechanism installed on the Venturi mechanism for self-cleaning, and the wall scraping mechanism installed on the air outlet filtering mechanism; when the box-type transformer is used in a dry area, the air outlet straight pipe and the air inlet straight pipe are buried underground, heat dissipation is performed through underground soil, the air outlet filtering mechanism is started, the filtered hot air is drawn out through the air outlet straight pipe, reaches the heat dissipation coil pipe through the hinging mechanism, and is concentrated for heat dissipation; after reaching the bottom end of the heat dissipation coil pipe, the air is backflowed to the transformer box through the air inlet straight pipe to complete heat dissipation, thereby realizing concentrated heat absorption in the transformer box, heat insulation in the shallow soil, and concentrated heat dissipation in the deep soil; in this process, the setting of the hinging mechanism and the supporting mechanism makes the supporting force of the heat dissipation coil pipe more stable and enables the heat dissipation coil pipe to be slightly deviated on the air outlet straight pipe and the air inlet straight pipe, thereby reducing the risk of bending and deformation of the heat dissipation coil pipe due to soil settlement during long-time use, and further improving the scientificity and practicality of the structure; the setting of the Venturi mechanism enables cold air after heat dissipation to automatically suck hot air near the Venturi mechanism, accelerates the air heat exchange process, and is beneficial to improving the heat dissipation effect in the transformer box; the setting of the air outlet filtering mechanism and the wall scraping mechanism prevents dust from entering the heat dissipation coil pipe and affecting the heat dissipation effect, and prolongs the service life and practicality of the structure.

[0006] The two hinging mechanisms comprise two wrapped spherical shells, the two wrapped spherical shells are respectively installed on the two ends of the heat dissipation coil pipe, a movable spherical shell is movably installed in each of the two wrapped spherical shells, the movable spherical shell on the top end of the heat dissipation coil pipe is installed on the air outlet straight pipe, the movable spherical shell on the bottom end of the heat dissipation coil pipe is installed on the air inlet straight pipe, an installation ring groove is formed in each of the two wrapped spherical shells, a sealing gasket is installed in each of the two installation ring grooves, and the two sealing gaskets are in contact with the movable spherical shell; when the soil settles, the movable spherical shell rotates in the wrapped spherical shell to compensate, compared with rigid connection, the risk of deformation and fracture of the heat dissipation coil pipe is greatly reduced, and the scientificity of the structure is improved.

[0007] The air outlet filtering mechanism comprises an air suction fan, which is installed on the air outlet straight pipe, a horn mouth installed on the air suction fan, a filter plate installed on the horn mouth, and a collection groove formed on the filter plate.

[0008] The output main shaft of the air suction fan is provided with a connecting shaft, which is rotatably installed on the filter plate, a tapered gear installed on the connecting shaft, a limiting sleeve installed on the filter plate, a transmission shaft rotatably installed in the limiting sleeve, an adaptive gear installed on one end of the transmission shaft, the adaptive gear being engaged with the tapered gear, a transmission gear installed on the other end of the transmission shaft, a gear disc rotatably installed on the top side of the horn mouth, the gear disc being engaged with the transmission gear, a connecting plate installed on the gear disc, a transmission column installed on the connecting plate, a straight groove sliding plate slidably installed on the transmission column, the straight groove of the straight groove sliding plate being longer than the outer diameter of the horn mouth, a flexible scraper installed on the bottom side of the straight groove sliding plate, the flexible scraper being in contact with the filter plate, a sliding frame installed on the straight groove sliding plate, the sliding frame being slidably installed on the bottom side inner wall of the transformer tank, and the main shaft of the air suction fan being rotatable to suck in hot air and drive the connecting shaft to rotate, the connecting shaft being rotatable to drive the transmission shaft to rotate in the limiting sleeve through the cooperation of the tapered gear and the adaptive gear, the transmission shaft being rotatable to drive the transmission gear to rotate, the transmission gear being rotatable to drive the gear disc to slowly rotate on the horn mouth, the gear disc being rotatable to drive the connecting plate and the transmission column to slowly rotate, the transmission column being rotatable to drive the straight groove sliding plate to reciprocatingly slide on the top side of the filter plate, so as to drive the flexible scraper to sweep the dust and impurities accumulated on the filter plate into the collection groove, prevent the filter plate from being blocked, and facilitate the continuous heat dissipation process.

[0009] The Venturi mechanism comprises a converging pipe, which is installed on the air inlet straight pipe, a throat pipe installed on the converging pipe, an air suction port formed on the throat pipe, a diverging pipe installed on the throat pipe, and filter screens installed on the converging pipe and the air suction port, the diverging pipe being located on the bottom side of the straight groove sliding plate, the air after heat dissipation entering the throat pipe through the converging pipe, and the air flow rate at the throat pipe being fast, so that the negative pressure formed by the air flow rate drives the hot air in the transformer tank to enter the throat pipe, accelerates the air heat exchange process, and facilitates the heat dissipation process.

[0010] Further, cavities are formed on the air outlet straight pipe and the air inlet straight pipe, and the cavities are filled with heat insulation materials, the heat insulation materials being composed of polyurethane foam materials, the polyurethane foam materials being filled in the cavities to prevent the air from being heat dissipated by the shallow soil when passing through the air outlet straight pipe, prevent the soil on one side of the air outlet straight pipe from being heated and the soil on one side of the air inlet straight pipe from being unchanged to cause uneven settlement of the soil, and prevent the air from being heat exchanged with the shallow soil when passing through the air inlet straight pipe, so as to reheat the air after heat dissipation and affect the heat dissipation effect in the transformer tank.

[0011] Further, the cross brace is installed in the heat dissipation coil, the sliding sleeve rib plate is installed on the heat dissipation coil, the bottom rib plate is slidably installed on the sliding sleeve rib plate, the bottom rib plate is installed on the outer wall of the adjacent heat dissipation coil on the bottom side of the sliding sleeve rib plate, the support force of the inner wall of the heat dissipation coil is increased through the cross brace to prevent collapse, the support force between the adjacent channels of the heat dissipation coil is increased through the sliding sleeve rib plate and the bottom rib plate to prevent deformation, in addition, the contact area is increased through the sliding sleeve rib plate, the bottom rib plate and the cross brace, which is beneficial to the heat exchange process, and the heat dissipation effect is further improved, wherein it should be noted that the sliding sleeve rib plate, the bottom rib plate and the heat dissipation coil can be made of copper alloy.

[0012] Further, the sliding sleeve rib plate is installed on the limit sliding shaft, the limit sliding cavity is opened on the bottom rib plate, the limit sliding shaft is slidably installed in the limit sliding cavity, the spring is movably sleeved on the limit sliding shaft, when the weak deformation occurs between the adjacent channels of the heat dissipation coil, the spring can be compressed through the sliding of the limit sliding shaft in the limit sliding cavity to compensate, direct rigid contact is prevented to cause the rupture of the heat dissipation coil, and the scientificity of the structure is further improved.

[0013] Further, the grinding ball block is installed on the transmission column, the grinding ball block is located on the bottom side of the straight slot sliding plate, the grinding ball block is in contact with the flexible scraper, through the setting of the grinding ball block, the sliding of the flexible scraper is realized in the sliding process of the transmission column in the long slot of the straight slot sliding plate, so that the self-cleaning process of the flexible scraper is completed, and the practicability and scientificity of the structure are further improved.

[0014] Further, the wall scraping mechanism comprises a wall scraping ring frame, the wall scraping ring frame is rotatably installed on the throat pipe, the rotating plate is installed on the wall scraping ring frame, the rotating shaft block is installed on the rotating plate, the rotating shaft sleeve is rotatably installed on the rotating shaft block, the transmission rod is installed on the rotating shaft sleeve, the transmission rod is located on the top side of the flared pipe, the transmission rod is installed on the straight slot sliding plate, the rotating plate and the wall scraping ring frame are driven to rotate on the throat pipe through the transmission rod in the reciprocating sliding process of the straight slot sliding plate, so that the wall scraping ring frame scrapes the filter screen on the throat pipe in the rotating process, and the scientificity of the structure is further improved.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] In the present application, the heat dissipation effect is improved by the setting of the air outlet straight pipe, the air inlet straight pipe and the heat dissipation coil.

[0017] In the present application, the support force of the heat dissipation coil is increased and the heat exchange area is increased to adapt to soil settlement, which is beneficial to the heat dissipation process and further improves the heat dissipation effect.

[0018] The present application, through the setting of the neck pipe, the throat pipe, the flared pipe, the air inlet, etc., realizes that the air flow rate at the throat pipe becomes fast in the process that the air after heat dissipation enters the throat pipe through the neck pipe and is discharged into the transformer tank through the flared pipe, so that the negative pressure formed press the hot air in the transformer tank into the throat pipe, accelerates the air heat exchange process, and is beneficial to the heat dissipation process.

[0019] The present application, through the setting of the filter screen, the filter plate, the flexible scraper, the straight slot slide plate, the scraping wall ring frame, etc., realizes that the filter plate on the air outlet straight pipe and the filter screen on the air inlet straight pipe are cleaned of dust in the air suction process of the air suction fan, guarantees the normal work of the filter plate and the filter screen, and further improves the use convenience and practicality of the structure.

[0020] The present application, through the setting of the grinding ball block, realizes that the flexible scraper is self-cleaned in the sliding process of the transmission column in the long slot on the straight slot slide plate, and further improves the practicality and scientificity of the structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic view of the present application;

[0022] Figure 2 It is a structure schematic view of the hidden box door of the present application;

[0023] Figure 3 It is a sectional structure schematic view of the wrapped ball shell of the present application;

[0024] Figure 4 It is a partial sectional structure schematic view of the heat dissipation coil of the present application;

[0025] Figure 5 It is Figure 4 A structure schematic view of the middle A part;

[0026] Figure 6 It is a partial sectional structure schematic view of the transformer tank of the present application;

[0027] Figure 7 It is a sectional structure schematic view of the horn mouth of the present application;

[0028] Figure 8 It is a structure schematic view of the throat pipe of the present application;

[0029] Figure 9 It is a structure schematic view of the straight slot slide plate of the present application.

[0030] In the figure: 1, transformer box; 2, air outlet straight pipe; 3, air inlet straight pipe; 4, heat dissipation coil; 5, hinged mechanism; 501, wrapped spherical shell; 502, movable spherical shell; 503, mounting ring groove; 504, sealing gasket; 6, supporting mechanism; 601, cross brace; 602, sliding sleeve rib plate; 603, bottom rib plate; 604, limiting sliding shaft; 605, limiting sliding cavity; 606, spring; 7, air outlet filtering mechanism; 701, air suction fan; 702, horn mouth; 703, filter plate; 704, collection groove; 705, connecting shaft; 706, conical tooth; 707, limiting sheath; 708, transmission shaft; 709, adaptive gear; 710, transmission gear; 711, gear disc; 712, connecting plate; 713, transmission column; 714, straight slot sliding plate; 715, flexible scraper; 716, sliding frame; 717, grinding ball block; 8, Venturi mechanism; 801, necked pipe; 802, throat pipe; 803, flared pipe; 804, air suction port; 805, filter screen; 9, wall scraping mechanism; 901, wall scraping ring frame; 902, rotating plate; 903, rotating shaft block; 904, rotating shaft sleeve; 905, transmission rod; 10, cavity; 11, heat insulation material; 12, transformer assembly; 13, box door. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0032] Please refer to Figures 1-9The heat dissipation structure of one box transformer in the drawing, including transformer box 1, the transformer box 1 is installed on the box door 13, the transformer box 1 is installed in the transformer box 1, the bottom side of the transformer box 1 is installed on the outlet straight pipe 2 and the inlet straight pipe 3, the bottom side of the outlet straight pipe 2 and the inlet straight pipe 3 is installed on the hinge mechanism 5, two hinge mechanisms 5 are installed on the two ends of the heat dissipation coil pipe 4 respectively, the top end of the heat dissipation coil pipe 4 is installed on the hinge mechanism 5 of the outlet straight pipe 2, the bottom end of the heat dissipation coil pipe 4 is installed on the hinge mechanism 5 of the inlet straight pipe 3, the heat dissipation coil pipe 4 is installed on the support mechanism 6 for increasing the support force and assisting heat dissipation, the outlet filter mechanism 7 for preventing dust from entering is installed on the outlet straight pipe 2, the venturi mechanism 8 for accelerating air exchange is installed on the inlet straight pipe 3, the wall scraping mechanism 9 for self-cleaning is installed on the venturi mechanism 8, the wall scraping mechanism 9 is installed on the outlet filter mechanism 7, when using the box transformer in the arid region, the outlet straight pipe 2 and the inlet straight pipe 3 are buried underground, heat dissipation is carried out through the underground soil, the outlet filter mechanism 7 is started, the filtered hot air is extracted through the outlet straight pipe 2, reaches the heat dissipation coil pipe 4 after the hinge mechanism 5 to concentrate heat dissipation, after reaching the bottom end of the heat dissipation coil pipe 4, it is backflowed to the transformer box 1 through the inlet straight pipe 3 to complete heat dissipation, so as to realize the process of concentrated heat absorption in the transformer box 1, heat insulation in the shallow soil and concentrated heat dissipation in the deep soil, in this process, through the setting of the hinge mechanism 5 and the support mechanism 6, the support force of the heat dissipation coil pipe 4 itself is more stable, and at the same time, it can be slightly offset on the outlet straight pipe 2 and the inlet straight pipe 3, so as to reduce the risk of bending and deformation of the heat dissipation coil pipe 4 caused by soil settlement during long-term use, further improve the scientificity and practicality of the structure, through the setting of the venturi mechanism 8, the cold air after heat dissipation is automatically sucked into the hot air near the venturi mechanism 8, the air heat exchange process is accelerated, which is conducive to improving the heat dissipation effect in the transformer box 1, through the setting of the outlet filter mechanism 7 and the wall scraping mechanism 9, dust is prevented from entering the heat dissipation coil pipe 4 to affect the heat dissipation effect, prolonging the service life and practicality of the structure;

[0033] Two hinge mechanisms 5 include two wrapped spherical shells 501, two wrapped spherical shells 501 are installed on the two ends of the heat dissipation coil pipe 4, two movable spherical shells 502 are movably installed in two wrapped spherical shells 501, the movable spherical shell 502 on the top end of the heat dissipation coil pipe 4 is installed on the outlet straight pipe 2, the movable spherical shell 502 on the bottom end of the heat dissipation coil pipe 4 is installed on the inlet straight pipe 3, two wrapped spherical shells 501 are provided with installation ring grooves 503, two sealing pads 504 are installed in two installation ring grooves 503, two sealing pads 504 are in contact with the movable spherical shell 502, when the soil settlement occurs, the rotation of the movable spherical shell 502 in the wrapped spherical shell 501 is compensated, compared with the rigid connection, the risk of deformation and fracture of the heat dissipation coil pipe 4 is greatly reduced, the scientificity of the structure is improved;

[0034] The air outlet filtering mechanism 7 comprises an air suction fan 701 installed on the air outlet straight pipe 2, a trumpet mouth 702 installed on the air suction fan 701, a filter plate 703 installed on the trumpet mouth 702, and a collecting groove 704 formed on the filter plate 703. The filter plate 703 is arranged to filter dust and impurities when the air suction fan 701 sucks hot air, so as to prevent the dust and impurities from entering the heat dissipation coil pipe 4 and affecting the heat dissipation effect;

[0035] A connecting shaft 705 is installed on the output main shaft of the air suction fan 701, the connecting shaft 705 is rotatably installed on the filter plate 703, a conical gear 706 is installed on the connecting shaft 705, a limiting sleeve 707 is installed on the filter plate 703, a transmission shaft 708 is rotatably installed in the limiting sleeve 707, an adaptive gear 709 is installed on one end of the transmission shaft 708, the adaptive gear 709 is engaged with the conical gear 706, a transmission gear 710 is installed on the other end of the transmission shaft 708, a gear disc 711 is rotatably installed on the top side of the trumpet mouth 702, the gear disc 711 is engaged with the transmission gear 710, a connecting plate 712 is installed on the gear disc 711, a transmission column 713 is installed on the connecting plate 712, a straight groove sliding plate 714 is slidably installed on the transmission column 713, the length of the straight groove of the straight groove sliding plate 714 is longer than the outer diameter of the trumpet mouth 702, a flexible scraper 715 is installed on the bottom side of the straight groove sliding plate 714, the flexible scraper 715 is in contact with the filter plate 703, a sliding frame 716 is installed on the straight groove sliding plate 714, the sliding frame 716 is slidably installed on the bottom side inner wall of the transformer box 1, the main shaft of the air suction fan 701 rotates to suck hot air and drive the connecting shaft 705 to rotate, the connecting shaft 705 rotates to drive the transmission shaft 708 to rotate in the limiting sleeve 707 through the cooperation of the conical gear 706 and the adaptive gear 709, the transmission shaft 708 rotates to drive the transmission gear 710 to rotate, the transmission gear 710 rotates to drive the gear disc 711 to slowly rotate on the trumpet mouth 702, the gear disc 711 rotates to drive the connecting plate 712 and the transmission column 713 to slowly rotate, the transmission column 713 rotates to drive the straight groove sliding plate 714 to reciprocate on the top side of the filter plate 703, so as to drive the flexible scraper 715 to clean the dust and impurities accumulated on the filter plate 703 into the collecting groove 704, prevent the filter plate 703 from being blocked, and facilitate the continuous heat dissipation process;

[0036] The Venturi mechanism 8 comprises a converging pipe 801 mounted on the air inlet straight pipe 3, the converging pipe 801 is provided with a throat pipe 802, the throat pipe 802 is provided with an air inlet 804, the throat pipe 802 is provided with a diverging pipe 803, the diverging pipe 803 and the air inlet 804 are provided with filter screens 805, the diverging pipe 803 is located at the bottom side of the straight slot sliding plate 714, through the setting of the Venturi mechanism 8, the air after heat dissipation enters the throat pipe 802 through the converging pipe 801, and then is discharged into the transformer tank 1 through the diverging pipe 803, the air flow rate at the throat pipe 802 is fast, so that the negative pressure formed pressurizes the hot air in the transformer tank 1 into the throat pipe 802, accelerates the air heat exchange process, and is beneficial to the heat dissipation process.

[0037] With reference to Figures 1-3 In the embodiment of the present application, the air outlet straight pipe 2 and the air inlet straight pipe 3 are provided with cavities 10, and the cavities 10 are filled with heat insulation materials 11, the heat insulation materials 11 are composed of polyurethane foam materials, the polyurethane foam materials are filled in the cavities 10, so that the air is prevented from heat exchange with the shallow soil when passing through the air outlet straight pipe 2, thereby preventing the soil on one side of the air outlet straight pipe 2 from being heated and the soil on one side of the air inlet straight pipe 3 from being unchanged, so that the uneven settlement of the soil is prevented, and the air is prevented from heat exchange with the shallow soil when passing through the air inlet straight pipe 3, so that the air after heat dissipation is reheated, and the heat dissipation effect in the transformer tank 1 is affected.

[0038] With reference to Figures 1-5 In the embodiment of the present application, the cross brace 601 is mounted in the heat dissipation coil pipe 4, the sliding sleeve rib plate 602 is mounted on the heat dissipation coil pipe 4, the bottom rib plate 603 is slidably mounted on the sliding sleeve rib plate 602, and the bottom rib plate 603 is mounted on the outer wall of the adjacent heat dissipation coil pipe 4 at the bottom side of the sliding sleeve rib plate 602, the cross brace 601 increases the support force of the inner wall of the heat dissipation coil pipe 4, so that the heat dissipation coil pipe 4 is prevented from being collapsed, the sliding sleeve rib plate 602 and the bottom rib plate 603 increase the support force between the adjacent channels of the heat dissipation coil pipe 4, so that the heat dissipation coil pipe 4 is prevented from being deformed, in addition, the sliding sleeve rib plate 602, the bottom rib plate 603 and the cross brace 601 increase the contact area, which is beneficial to the heat exchange process, and further improves the heat dissipation effect, and it should be noted that the sliding sleeve rib plate 602, the bottom rib plate 603 and the heat dissipation coil pipe 4 can be made of copper alloy.

[0039] With reference to Figures 1-5 In the embodiment of the present application, the limiting sliding shaft 604 is mounted on the sliding sleeve rib plate 602, the limiting sliding cavity 605 is formed on the bottom rib plate 603, the limiting sliding shaft 604 is slidably mounted in the limiting sliding cavity 605, and the spring 606 is movably sleeved on the limiting sliding shaft 604, when the adjacent channels of the heat dissipation coil pipe 4 are slightly deformed, the spring 606 can be compressed through the sliding of the limiting sliding shaft 604 in the limiting sliding cavity 605, so that the direct rigid contact is prevented, the heat dissipation coil pipe 4 is prevented from being broken, and the scientificity of the structure is further improved.

[0040] With reference to Figures 1-9 In the embodiment of the present application, the transmission column 713 is provided with a grinding ball block 717, the grinding ball block 717 is located at the bottom side of the straight slot sliding plate 714, the grinding ball block 717 is in contact with the flexible scraper 715, through the arrangement of the grinding ball block 717, the sliding of the flexible scraper 715 on the transmission column 713 in the long slot of the straight slot sliding plate 714 is realized, so that the self-cleaning process of the flexible scraper 715 is completed, and the practicability and scientificity of the structure are further improved.

[0041] With reference to Figures 1-9 In the embodiment of the present application, the wall scraping mechanism 9 comprises a wall scraping ring frame 901, the wall scraping ring frame 901 is rotationally installed on the throat pipe 802, a rotating plate 902 is installed on the wall scraping ring frame 901, a rotating shaft block 903 is installed on the rotating plate 902, a rotating shaft sleeve 904 is rotationally installed on the rotating shaft block 903, a transmission rod 905 is installed on the rotating shaft sleeve 904, the transmission rod 905 is located at the top side of the flared pipe 803, the transmission rod 905 is installed on the straight slot sliding plate 714, the straight slot sliding plate 714 reciprocally slides to drive the rotating plate 902 and the wall scraping ring frame 901 to rotate on the throat pipe 802 through the transmission rod 905, so that the wall scraping ring frame 901 scrapes the filter screen 805 on the throat pipe 802 in the rotating process, and the scientificity of the structure is further improved.

[0042] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. In addition, the terms "comprise", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0043] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a box-type transformer, comprising a transformer box (1), a box door (13) installed on the transformer box (1), and a transformer assembly (12) installed inside the transformer box (1), characterized in that: The transformer box (1) is equipped with an exhaust pipe (2) and an intake pipe (3) on its bottom side. Both the exhaust pipe (2) and the intake pipe (3) are equipped with hinge mechanisms (5). The two ends of the heat dissipation coil (4) are respectively installed on the two hinge mechanisms (5). The top end of the heat dissipation coil (4) is installed on the hinge mechanism (5) of the exhaust pipe (2). The bottom end of the heat dissipation coil (4) is installed on the hinge mechanism (5) of the intake pipe (3). The heat dissipation coil (4) is equipped with a support mechanism (6) for increasing support force and assisting heat dissipation. The exhaust pipe (2) is equipped with an exhaust filter mechanism (7) for preventing dust from entering. The intake pipe (3) is equipped with a Venturi mechanism (8) for accelerating air exchange. The Venturi mechanism (8) is equipped with a wall scraping mechanism (9) for self-cleaning. The wall scraping mechanism (9) is installed on the exhaust filter mechanism (7). The hinge mechanism (5) includes two enclosed spherical shells (501), which are respectively installed at both ends of the heat dissipation coil (4). A movable spherical shell (502) is movably installed inside each of the two enclosed spherical shells (501). The movable spherical shell (502) at the top of the heat dissipation coil (4) is installed on the exhaust straight pipe (2), and the movable spherical shell (502) at the bottom of the heat dissipation coil (4) is installed on the intake straight pipe (3). Each of the two enclosed spherical shells (501) has an installation ring groove (503), and a sealing gasket (504) is installed inside each of the two installation ring grooves (503). Both sealing gaskets (504) are in contact with the movable spherical shell (502). The air filtration mechanism (7) includes a suction fan (701), which is installed on the air outlet straight pipe (2). A flared mouth (702) is installed on the suction fan (701), and a filter plate (703) is installed on the flared mouth (702). A collection groove (704) is opened on the filter plate (703). A connecting shaft (705) is mounted on the output shaft of the suction fan (701). The connecting shaft (705) is rotatably mounted on the filter plate (703). A bevel gear (706) is mounted on the connecting shaft (705). A limiting sleeve (707) is mounted on the filter plate (703). A drive shaft (708) is rotatably mounted inside the limiting sleeve (707). A matching gear (709) is mounted on one end of the drive shaft (708), and the matching gear (709) meshes with the bevel gear (706). A drive gear (710) is mounted on the other end of the drive shaft (708). A gear disk (711) is rotatably mounted on the top side of the bell mouth (702). The gear disk (711) meshes with the transmission gear (710). A connecting plate (712) is installed on the gear disk (711). A transmission column (713) is installed on the connecting plate (712). A straight groove slide plate (714) is slidably installed on the transmission column (713). The length of the straight groove of the straight groove slide plate (714) is longer than the outer diameter of the bell mouth (702). A flexible scraper (715) is installed on the bottom side of the straight groove slide plate (714). The flexible scraper (715) contacts the filter plate (703). A sliding frame (716) is installed on the straight groove slide plate (714). The sliding frame (716) is slidably installed on the bottom inner wall of the transformer box (1). The Venturi mechanism (8) includes a constricted tube (801), which is installed on the intake straight pipe (3). A throat (802) is installed on the constricted tube (801), and an air intake port (804) is opened on the throat (802). A flared tube (803) is installed on the throat (802). A filter screen (805) is installed on both the flared tube (803) and the air intake port (804). The flared tube (803) is located on the bottom side of the straight groove slide plate (714).

2. The heat dissipation structure of a box-type transformer according to claim 1, characterized in that: Both the outlet pipe (2) and the inlet pipe (3) are provided with cavities (10), and the cavities (10) are filled with heat insulation material (11), which is composed of polyurethane foam material.

3. The heat dissipation structure of a box-type transformer according to claim 2, characterized in that: A cross support (601) is installed inside the heat dissipation coil (4), a sliding rib plate (602) is installed on the heat dissipation coil (4), a bottom rib plate (603) is slidably installed on the sliding rib plate (602), and the bottom rib plate (603) is installed on the outer wall of the heat dissipation coil (4) adjacent to the bottom side of the sliding rib plate (602).

4. The heat dissipation structure of a box-type transformer according to claim 3, characterized in that: A limiting slide shaft (604) is installed on the sliding sleeve rib (602), and a limiting slide cavity (605) is opened on the bottom rib (603). The limiting slide shaft (604) is slidably installed in the limiting slide cavity (605), and a spring (606) is movably sleeved on the limiting slide shaft (604).

5. The heat dissipation structure of a box-type transformer according to claim 4, characterized in that: A grinding ball block (717) is installed on the transmission column (713). The grinding ball block (717) is located on the bottom side of the straight groove slide plate (714) and is in contact with the flexible scraper (715).

6. The heat dissipation structure of a box-type transformer according to claim 5, characterized in that: The scraping mechanism (9) includes a scraping ring frame (901), which is rotatably mounted on the throat pipe (802). A rotating plate (902) is mounted on the scraping ring frame (901), a rotating shaft block (903) is mounted on the rotating plate (902), a rotating shaft sleeve (904) is rotatably mounted on the rotating shaft block (903), and a transmission rod (905) is mounted on the rotating shaft sleeve (904). The transmission rod (905) is located on the top side of the flared pipe (803) and is mounted on the straight groove slide plate (714).

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