An oil-immersed transformer

Abstract

The present invention relates to the technical field of transformers, and discloses an oil-immersed transformer, comprising a transformer body and a heat dissipation assembly, the heat dissipation assembly comprising heat dissipation fins and vertical plates installed on the side walls of the transformer body, the side walls of the vertical plates are provided with connecting plates, the side walls of the connecting plates are provided with pneumatic cleaning equipment and dust suppression components, the dust suppression components are used to control the direction of dust generated by the pneumatic cleaning equipment, the dust suppression components are located above the pneumatic cleaning equipment, the dust suppression components comprise a pneumatic control panel, a vertical air outlet block is provided at the bottom of the pneumatic control panel, a swing component is installed in the vertical air outlet block, the present solution has the beneficial effect of controlling the drifting direction of dust while pneumatically cleaning the dust on the heat dissipation fins, and solves the problem that the pneumatic cleaning system will blow dust attached to the heat dissipation fins to the surroundings when cleaning the dust.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, in particular to an oil-immersed transformer. Background Art

[0002] In modern power systems, oil-immersed transformers, as core equipment, undertake the critical tasks of voltage conversion and power transmission and distribution. Their operational reliability and stability are directly related to the safe and efficient operation of the entire power system.

[0003] As a key heat dissipation component in oil-immersed transformers, cooling fins play a vital role in the transformer's heat dissipation process by increasing the heat dissipation area and enhancing convective heat transfer. Properly designed cooling fins can significantly improve the transformer's heat dissipation efficiency, reduce oil temperature, and thus enhance the transformer's overload capacity and operational reliability. As power systems evolve toward higher capacity and more compact design, transformer power density continues to increase, generating a corresponding increase in heat. This places higher demands on the heat dissipation performance of the cooling fins.

[0004] Oil-immersed transformers are usually used in factories to control the power system of the entire workshop. Due to the harsh operating environment of the factory, the radiator of the transformer is usually attached with a lot of dust. For this reason, a cleaning system is usually set up at the heat sink fins to clean the dust attached to the heat sink fins. Common cleaning methods usually include pneumatic cleaning or brush cleaning.

[0005] However, when the pneumatic cleaning system is cleaning the dust, the dust attached to the heat sink fins will be blown around. If the scattered dust adheres to the surface of insulating components such as the transformer windings, bushings, and insulators, it will form a conductive path or reduce the strength of the insulating medium. When cleaning with a brush, although the dust can be cleaned in a concentrated manner to prevent the dust from being scattered, the hard bristles of the brush will scratch the anti-rust coating on the surface of the fins and accelerate metal corrosion.

[0006] In this regard, we propose an oil-immersed transformer. Summary of the Invention

[0007] The present invention provides an oil-immersed transformer, which has the beneficial effect of controlling the dust dispersion direction while pneumatically cleaning the dust on the heat sink fins, thereby solving the problem mentioned in the above background technology that the pneumatic cleaning system will blow the dust attached to the heat sink fins to the surroundings when cleaning the dust, thereby causing the dust to be scattered on the outside of the transformer.

[0008] The present invention provides the following technical solution: an oil-immersed transformer, comprising a transformer body and a heat dissipation assembly, wherein the heat dissipation assembly comprises a heat dissipation fin and a vertical plate installed on the side wall of the transformer body, the side wall of the vertical plate is provided with a connecting plate, and the side wall of the connecting plate is provided with a pneumatic cleaning device and a dust suppression assembly.

[0009] The dust suppression component is used to control the direction of dust generated by the pneumatic cleaning equipment. The dust suppression component is located above the pneumatic cleaning equipment. The dust suppression component includes a pneumatic control panel. A vertical air outlet block is provided at the bottom of the pneumatic control panel, and a swing component is installed in the vertical air outlet block.

[0010] The swing component is used to control the jet trajectory of the air outlet nozzle. The swing component includes a swing groove opened at the bottom of the vertical air outlet block. A swing hollow block is rotatably connected in the swing groove, and the air outlet nozzle is installed at the bottom of the swing hollow block.

[0011] As an optional solution for an oil-immersed transformer described in the present invention, a T-shaped track is provided on the side wall of the vertical plate, a T-shaped slider is slidably connected to the T-shaped track, a connecting plate is fixedly connected to the side wall of the T-shaped slider, and the pneumatic cleaning device is arranged in the gap between the heat dissipation fins.

[0012] As an optional solution for an oil-immersed transformer described in the present invention, the pneumatic control panel is fixedly connected to the top of the pneumatic cleaning device, an air pressure groove is opened in the pneumatic control panel, a piston plate is slidably connected in the air pressure groove, and the top of the pneumatic control panel is connected to a hydraulic oil pipeline.

[0013] As an optional solution for an oil-immersed transformer described in the present invention, a hydraulic oil tank is provided in the connecting plate, one side of the hydraulic oil tank is connected to the hydraulic oil pipeline, a hydraulic oil slider is slidably connected in the hydraulic oil tank, one side of the hydraulic oil slider is fixedly connected to a drive rod, the drive rod is slidably connected in a drive track groove, and the drive track groove is provided on the side wall of the vertical plate.

[0014] As an optional solution for an oil-immersed transformer described in the present invention, the side wall of the swing hollow block is fixedly connected to a swing shaft, the other end of the swing shaft is fixedly connected to a connecting rod, and the connecting rod is used to connect adjacent swing hollow blocks.

[0015] As an optional solution for an oil-immersed transformer described in the present invention, the swing of the swing shaft is controlled by a drive assembly, and the drive assembly includes a drive groove opened in the connecting plate, a drive cross slide is slidably connected in the drive groove, a plug-in rod is fixedly connected to one side of the drive cross slide, and the drive cross slide is connected to the drive groove by a No. 1 spring.

[0016] As an optional solution for an oil-immersed transformer described in the present invention, an empty groove and a spiral groove are provided in the connecting rod, the plug-in rod is inserted into the empty groove, a spiral slider is slidably connected in the spiral groove, and the spiral slider is fixedly connected to the side wall of the plug-in rod.

[0017] As an optional solution for an oil-immersed transformer described in the present invention, a water mist assembly is provided in the pneumatic control panel, the water mist assembly is used to increase the deadweight of dust particles, the water mist assembly includes a water inlet channel and a water collection trough provided in the connecting plate, the water collection trough is connected to a branch trough, the branch trough is provided in the pneumatic control panel, the branch trough is connected to a water mist nozzle, and the water mist nozzle is installed at the bottom of the pneumatic control panel.

[0018] As an optional solution for an oil-immersed transformer described in the present invention, the pneumatic cleaning device is provided with an intermittent control component for controlling the connection of the branch groove, the intermittent control component includes a valve arranged in the branch groove, a control rod is provided on one side of the valve, a resistance rod is abutted on one side of the control rod, the resistance rod is slidably connected in a limiting slide groove, the limiting slide groove is provided in the connecting plate, an eccentric rod is provided on one side of the resistance rod, a control groove is provided in the connecting plate, a gear and a one-way drive rod are provided in the control groove, the side wall of the gear is fixedly connected to the eccentric rod, a one-way component is provided in the one-way drive rod, and a No. 2 spring is provided between the one-way drive rod and the control groove.

[0019] As an optional solution for an oil-immersed transformer described in the present invention, the one-way component includes a one-way groove opened in the one-way drive rod, a fixed shaft is fixedly connected in the one-way groove, the side wall of the fixed shaft is rotatably connected to a one-way tooth block through a torsion spring, and the one-way tooth block is engaged with the gear.

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

[0021] 1. This oil-immersed transformer effectively solves the problem of dust flying around during pneumatic cleaning through the design of a dust suppression component. When the connecting plate slides, the hydraulic oil system drives the piston plate to move smoothly in the air pressure groove, causing the vertical air outlet block to spray air downward through the air outlet nozzle, exerting downward wind force on the dust blown away by the pneumatic cleaning equipment, causing the dust to concentrate downward. This design can prevent dust from adhering to the surfaces of insulating components such as transformer windings, bushings, and insulators after floating, reducing the risk of forming conductive paths or reducing the strength of the insulating medium, and significantly improving the safety and reliability of transformer operation. At the same time, the use of a hydraulic oil system to transmit power ensures the smooth movement of the piston plate, making the dust suppression effect stable and reliable. No additional power source is required, the structure is simple and the energy consumption is low, and it can continuously and effectively control the direction of dust drift, creating a clean and safe operating environment for the transformer, reducing the hidden dangers of failure caused by dust problems, and extending the service life of the transformer.

[0022] 2. The oil-immersed transformer is equipped with a swinging assembly, which further optimizes the dust control effect. When the hydraulic oil slider moves, the drive assembly causes the plug-in rod to swing the connecting rod, which in turn causes the air outlet nozzle to swing from both sides to the center. This design allows the blown dust to gather from both sides to the center, effectively restricting the dust's drifting range and enhancing the dust's gathering effect. This facilitates the subsequent centralized collection and treatment of dust, reduces the difficulty of cleaning, and improves cleaning efficiency. The hydraulic system's linkage realizes the swing function, saves energy, has a compact structure and good linkage, and improves the efficiency and convenience of overall cleaning while controlling the dust direction, making dust management more centralized and orderly, and reducing secondary pollution problems caused by dust diffusion.

[0023] 3. This oil-immersed transformer utilizes a water mist assembly and an intermittent control assembly to further enhance the overall effectiveness of dust control. The water mist assembly applies water to the dust surface through a mist nozzle, increasing the weight of dust particles and facilitating their settling, preventing them from floating and spreading. The water mist also penetrates the narrow gaps between the cooling fins, dislodging deep-seated dust and dissolving water-soluble contaminants such as salts and oil, resulting in a cleaning effect superior to simple dry purging. Furthermore, water evaporation removes some heat, providing auxiliary cooling during hot weather. The intermittent control assembly intermittently sprays the water mist by controlling the valve's opening and closing. This prevents the formation of a continuous conductive film on the cooling fins, conserves water resources, and reduces wastewater generation. The wastewater after spraying is centrally collected and treated, ensuring environmental protection and high efficiency. This design effectively suppresses dust while ensuring deep, safe, and economical cleaning. It is suitable for a variety of complex environments, improving the comprehensiveness and reliability of transformer maintenance, and providing better assurance for stable transformer operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 Schematic diagram of the heat dissipation fin structure of the present invention;

[0026] Figure 3 Schematic diagram of the dust suppression assembly structure of the present invention Figure 1 ;

[0027] Figure 4 Schematic diagram of the dust suppression assembly structure of the present invention Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the structure of the dust suppression assembly of the present invention from above;

[0029] Figure 6 The cross-sectional structure of the dust suppression component of the present invention is shown as follows Figure 1 ;

[0030] Figure 7 The cross-sectional structure of the dust suppression component of the present invention is shown as follows Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the structure of the drive assembly of the present invention;

[0032] Figure 9 It is a schematic structural diagram of the swing assembly of the present invention;

[0033] Figure 10 The cross-sectional structure of the dust suppression component of the present invention is shown as follows Figure 3 ;

[0034] Figure 11 It is a schematic structural diagram of the intermittent control component of the present invention.

[0035] Figure: 1. Heat dissipation assembly; 11. Heat dissipation fins; 12. Vertical plate; 13. T-shaped track; 14. T-shaped slider; 15. Connecting plate; 16. Pneumatic cleaning equipment; 2. Dust suppression assembly; 21. Pneumatic control panel; 22. Air pressure tank; 23. Piston plate; 24. Vertical air outlet block; 25. Hydraulic oil pipeline; 26. Hydraulic oil tank; 27. Hydraulic oil slider; 28. Drive rod; 29. Drive track groove; 3. Swing assembly; 31. Swing groove; 32. Swing hollow block; 33. Swing shaft; 34. Connecting rod; 35. Air outlet nozzle; 4. Drive assembly; 41. Empty groove; 42. Spiral groove; 43. Connecting rod; 44. Spiral slider; 45. Drive groove; 46. Drive cross slide; 47. Spring No. 1; 5. Water mist assembly; 51. Water inlet channel; 52. Water collecting trough; 53. Branch groove; 54. Water mist nozzle; 6. Intermittent control assembly; 61. Valve; 62. Control rod; 63. Resistance rod; 64. Limit slide; 65. Control groove; 66. Gear; 67. Eccentric rod; 68. One-way drive rod; 69. One-way component; 691. One-way groove; 692. Fixed shaft; 693. Torsion spring; 694. One-way gear block; 610. Spring No. 2. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1: This example aims to solve the problem that the pneumatic cleaning system will blow the dust attached to the heat sink fins to the surroundings when cleaning the dust. Figures 1 to 11 An oil-immersed transformer includes a transformer body and a heat dissipation component 1. The transformer body includes a shell, an iron core, a winding, an insulation system and a cooling device. The iron core is fixed in the shell and is made of laminated silicon steel sheets to form a closed magnetic circuit, which is responsible for conducting the magnetic field and reducing eddy current loss. The winding is wound around the iron core and is wound with copper or aluminum wire. Energy is transferred through electromagnetic induction. The insulation system is arranged between the iron core and the winding. The insulation system includes insulating oil, paper, and resin, which are used to isolate the winding from the iron core to prevent short circuits. The insulating oil has both heat dissipation and insulation functions. The cooling device is oil-immersed and filled inside the shell. Heat is dissipated through the heat dissipation component 1.

[0038] Specifically, the heat dissipation assembly 1 includes a heat dissipation fin 11 and a vertical plate 12, which are fixed on the side wall of the transformer shell. The side wall of the vertical plate 12 is provided with a connecting plate 15, and the side wall of the connecting plate 15 is provided with a pneumatic cleaning device 16 and a dust suppression assembly 2.

[0039] A T-shaped track 13 is provided on the side wall of the vertical plate 12 , a T-shaped slider 14 is slidably connected to the T-shaped track 13 , a connecting plate 15 is fixedly connected to the side wall of the T-shaped slider 14 , and a pneumatic cleaning device 16 is provided in the gap between the heat dissipation fins 11 .

[0040] The sliding of the T-shaped slider 14 in the T-shaped track 13 is controlled by a motor and a screw (the motor and screw controlling the sliding of the slider in the slide groove is a prior art. Similarly, the pneumatic cleaning equipment 16 cleaning the side wall of the heat dissipation fin 11 is also a prior art and is not described in detail in this solution).

[0041] The dust suppression component 2 is used to control the direction of dust generated by the pneumatic cleaning equipment 16. The dust suppression component 2 is located above the pneumatic cleaning equipment 16. The dust suppression component 2 includes a pneumatic control panel 21. A vertical air outlet block 24 is provided at the bottom of the pneumatic control panel 21. A swing component 3 is installed in the vertical air outlet block 24.

[0042] The pneumatic control panel 21 is fixedly connected to the top of the pneumatic cleaning device 16 . An air pressure groove 22 is provided in the pneumatic control panel 21 . A piston plate 23 is slidably connected in the air pressure groove 22 . A hydraulic oil pipeline 25 is connected to the top of the pneumatic control panel 21 .

[0043] A hydraulic oil tank 26 is provided in the connecting plate 15 , one side of the hydraulic oil tank 26 is connected to the hydraulic oil pipeline 25 , a hydraulic oil slider 27 is slidably connected in the hydraulic oil tank 26 , one side of the hydraulic oil slider 27 is fixedly connected to a drive rod 28 , the drive rod 28 is slidably connected in a drive track groove 29 , and the drive track groove 29 is provided on the side wall of the vertical plate 12 .

[0044] In the prior art, the pneumatic cleaning equipment 16 usually uses a DC air duct to clean the side panels of the heat dissipation fins 11 to clean the gaps in the heat dissipation fins 11. This cleaning method causes the dust on the side walls of the heat dissipation fins 11 to float everywhere. If the dust adheres to the surfaces of insulating components such as the windings, bushings, and insulators of the transformer after floating, it will form a conductive path or reduce the strength of the insulating medium. Therefore, through the setting of the dust suppression component 2, the floating dust can be blown downward to prevent the floating dust from adhering to the surfaces of insulating components such as the windings, bushings, and insulators of the transformer after floating, which will form a conductive path or reduce the strength of the insulating medium.

[0045] When the connecting plate 15 slides with the T-shaped slider 14, the cooperation between the driving rod 28 and the driving track groove 29 causes the hydraulic oil slider 27 in the hydraulic oil tank 26 to produce piston movement. Since the hydraulic oil tank 26 is connected to the space above the pneumatic control plate 21 through the hydraulic oil pipeline 25, the piston plate 23 is driven to perform piston movement in the air pressure groove 22. The use of the hydraulic oil system as a power transmission component can ensure the smooth sliding of the piston plate 23 in the air pressure groove 22. Due to the piston movement of the piston plate 23 in the air pressure groove 22, and the pneumatic control plate 21 is arranged above the pneumatic cleaning device 16, the pneumatic cleaning device 16 blows off the dust on the side wall of the heat dissipating fin 11 while applying downward wind force to the scattered dust through the arrangement of the vertical air outlet block 24 and the air outlet nozzle 35, so that the dust can be further gathered downward, thereby preventing the scattered dust from adhering to the surface of insulating components such as the winding, bushing, and insulator of the transformer, forming a conductive path or reducing the strength of the insulating medium.

[0046] Example 2, based on Example 1, please refer to Figures 1 to 11 Specifically, the swing component 3 is used to control the jet trajectory of the air outlet nozzle 35. The swing component 3 includes a swing groove 31 opened at the bottom of the vertical air outlet block 24. A swing hollow block 32 is rotatably connected in the swing groove 31, and an air outlet nozzle 35 is installed at the bottom of the swing hollow block 32.

[0047] A swing shaft 33 is fixedly connected to the side wall of the swing hollow block 32 , and a connecting rod 34 is fixedly connected to the other end of the swing shaft 33 . The connecting rod 34 is used to connect adjacent swing hollow blocks 32 .

[0048] The swinging of the swing shaft 33 is controlled by the driving assembly 4, which includes a driving groove 45 opened in the connecting plate 15, a driving cross slide 46 is slidably connected in the driving groove 45, and a plug-in rod 43 is fixedly connected to one side of the driving cross slide 46. The driving cross slide 46 is connected to the driving groove 45 by a No. 1 spring 47.

[0049] An empty slot 41 and a spiral slot 42 are defined in the connecting rod 34 . A plug-in rod 43 is inserted into the empty slot 41 . A spiral slider 44 is slidably connected to the spiral slot 42 . The spiral slider 44 is fixedly connected to the side wall of the plug-in rod 43 .

[0050] The design of the swing assembly 3 enables the air outlet nozzle 35 to swing inward from both sides when spraying air, thereby further restricting the dust's drifting direction.

[0051] When the hydraulic oil slider 27 slides to the left in the hydraulic oil tank 26, the hydraulic oil slider 27 hits the bottom of the driving cross slide 46, thereby driving the driving cross slide 46 and the plug-in rod 43 fixedly connected thereto to slide to the left synchronously. Since the plug-in rod 43 is plugged into the connecting rod 34, and a spiral slider 44 and a spiral groove 42 are provided between the plug-in rod 43 and the connecting rod 34, as the plug-in rod 43 moves to the left, the connecting rod 34 is synchronously driven to swing (the swing amplitude of the air outlet nozzle 35 is controlled by the number of turns of the spiral groove 42, which is set by those skilled in the art according to actual needs). Through the rotation of the connecting rod 34, the swing shaft 33 and the swing hollow block 32 fixed thereto are driven to swing synchronously;

[0052] The purpose is to make the air outlet nozzle 35 swing from both sides to the middle while emitting air, so that the dust blown off by the pneumatic cleaning equipment 16 gathers from both sides to the middle, thereby facilitating the subsequent collection of the dust.

[0053] In some embodiments, in order to facilitate subsequent dust collection, a water tank may be provided under the transformer. Driven by the dust suppression assembly 2 , the dust is blown into the water tank to facilitate subsequent dust collection.

[0054] Example 3, based on Example 2, please refer to Figures 1 to 11 Specifically, a water mist assembly 5 is provided in the pneumatic control panel 21. The water mist assembly 5 is used to increase the dead weight of dust particles. The water mist assembly 5 includes a water inlet channel 51 and a water collecting trough 52 opened in the connecting plate 15. The water collecting trough 52 is connected to a branch groove 53. The branch groove 53 is provided in the pneumatic control panel 21. The branch groove 53 is connected to a water mist nozzle 54. The water mist nozzle 54 is installed at the bottom of the pneumatic control panel 21.

[0055] The pneumatic cleaning equipment 16 is provided with an intermittent control component 6 connected to the control branch groove 53. The intermittent control component 6 includes a valve 61 arranged in the branch groove 53. A control rod 62 is provided on one side of the valve 61. A resistance rod 63 is abutted on one side of the control rod 62. The resistance rod 63 is slidably connected in the limiting slide 64. The limiting slide 64 is provided in the connecting plate 15. An eccentric rod 67 is provided on one side of the resistance rod 63. A control groove 65 is provided in the connecting plate 15. A gear 66 and a one-way drive rod 68 are provided in the control groove 65. The side wall of the gear 66 is fixedly connected with the eccentric rod 67. A one-way component 69 is provided in the one-way drive rod 68. A No. 2 spring 610 is provided between the one-way drive rod 68 and the control groove 65.

[0056] The one-way component 69 includes a one-way groove 691 provided in the one-way driving rod 68 , in which a fixed shaft 692 is fixedly connected. The side wall of the fixed shaft 692 is rotatably connected to a one-way tooth block 694 via a torsion spring 693 , and the one-way tooth block 694 is engaged with the gear 66 .

[0057] The design of the water mist assembly 5 can increase the weight of the dust, making it easier to control and thus preventing the dust from flying around. The water mist assembly 5 is connected to the water supply equipment through the water inlet channel 51, so that the water supply equipment provides water source and water pressure to the water mist nozzle 54 through the water collecting tank 52 and the branch tank 53. The water is sprayed on the surface of the dust in the form of mist through the water mist nozzle 54, so that the weight of the dust is increased, thereby further preventing the dust from flying around. At the same time, the water mist can penetrate into the narrow gaps of the heat sink fins under the action of pressure, and wash away the deep dust that is difficult to reach with the air gun. If the dust contains water-soluble substances such as salts and oil, the water mist can directly dissolve or dilute the pollutants, and the cleaning effect is better than simple dry blowing. After the water mist is sprayed onto the surface of the heat sink fins, the evaporation of water can take away some heat, temporarily reducing the temperature of the fins while cleaning, which is especially suitable for auxiliary cooling during maintenance in high temperature seasons.

[0058] It is worth mentioning that the water supply equipment is a combination of a water tank and a water pump. The water source of the water tank can be replenished by the staff during regular inspections, which will not be elaborated in detail here;

[0059] The design of the intermittent control component 6 controls the spraying frequency of water mist. When the hydraulic oil slider 27 slides to the left in the hydraulic oil tank 26, the hydraulic oil slider 27 contacts the bottom of the one-way drive rod 68, driving the one-way drive rod 68 to slide upward, thereby causing the one-way component 69 in the one-way drive rod 68 to engage with the gear 66, driving the gear 66 to rotate. Through the rotation of the gear 66, the eccentric rod 67 installed on the side wall of the gear 66 is driven to contact the resistance rod 63, and drive the resistance rod 63 to move upward. Through the movement of the resistance rod 63, the control rod 62 can be driven to open the valve 61, thereby driving the liquid to flow, realizing intermittent spraying of the water mist nozzle 54. This intermittent water spraying design can make the water mist evaporate or drip in a very short time, avoiding the formation of a continuous conductive film on the surface of the heat sink fins, and the intermittent water spraying design can save water resources. At the same time, the amount of sewage generated by short-term water spraying is small, and the sprayed water will fall into the water tank arranged under the heat sink 11 for centralized collection and treatment.

[0060] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0061] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An oil-immersed transformer, comprising a transformer body and a heat dissipation assembly (1), characterized in that: The heat dissipation assembly (1) comprises a heat dissipation fin (11) and a vertical plate (12) mounted on the side wall of the transformer body, the side wall of the vertical plate (12) is provided with a connecting plate (15), and the side wall of the connecting plate (15) is provided with a pneumatic cleaning device (16) and a dust suppression assembly (2); The dust suppression assembly (2) is used to control the direction of dust generated by the pneumatic cleaning device (16). The dust suppression assembly (2) is located above the pneumatic cleaning device (16). The dust suppression assembly (2) includes a pneumatic control panel (21). A vertical air outlet block (24) is provided at the bottom of the pneumatic control panel (21). A swing assembly (3) is installed in the vertical air outlet block (24). The swing assembly (3) is used to control the jet trajectory of the air outlet nozzle (35), and the swing assembly (3) includes a swing groove (31) provided at the bottom of the vertical air outlet block (24), a swing hollow block (32) is rotatably connected in the swing groove (31), and the air outlet nozzle (35) is installed at the bottom of the swing hollow block (32); The pneumatic control panel (21) is fixedly connected to the top of the pneumatic cleaning device (16), an air pressure groove (22) is provided in the pneumatic control panel (21), a piston plate (23) is slidably connected in the air pressure groove (22), and a hydraulic oil pipeline (25) is connected to the top of the pneumatic control panel (21); A hydraulic oil tank (26) is provided in the connecting plate (15), one side of the hydraulic oil tank (26) is in communication with the hydraulic oil pipeline (25), a hydraulic oil slider (27) is slidably connected in the hydraulic oil tank (26), one side of the hydraulic oil slider (27) is fixedly connected to a driving rod (28), the driving rod (28) is slidably connected in a driving track groove (29), and the driving track groove (29) is provided on the side wall of the vertical plate (12); A swing shaft (33) is fixedly connected to the side wall of the swing hollow block (32), and a connecting rod (34) is fixedly connected to the other end of the swing shaft (33), and the connecting rod (34) is used to connect adjacent swing hollow blocks (32); The swing of the swing shaft (33) is controlled by a driving assembly (4), and the driving assembly (4) includes a driving groove (45) provided in the connecting plate (15), a driving cross slide (46) is slidably connected in the driving groove (45), a plug-in rod (43) is fixedly connected to one side of the driving cross slide (46), and the driving cross slide (46) is connected to the driving groove (45) via a No. 1 spring (47); An empty slot (41) and a spiral slot (42) are provided in the connecting rod (34); the plug-in rod (43) is inserted into the empty slot (41); a spiral slider (44) is slidably connected to the spiral slot (42); and the spiral slider (44) is fixedly connected to the side wall of the plug-in rod (43).

2. The oil-immersed transformer according to claim 1, characterized in that: A T-shaped track (13) is provided on the side wall of the vertical plate (12), a T-shaped slider (14) is slidably connected to the inside of the T-shaped track (13), a connecting plate (15) is fixedly connected to the side wall of the T-shaped slider (14), and the pneumatic cleaning device (16) is arranged at the gap between the heat dissipation fins (11).

3. The oil-immersed transformer according to claim 1, characterized in that: A water mist assembly (5) is provided in the pneumatic control panel (21), and the water mist assembly (5) is used to increase the deadweight of dust particles. The water mist assembly (5) comprises a water inlet channel (51) and a water collecting trough (52) provided in the connecting plate (15), the water collecting trough (52) being connected to a branch trough (53), the branch trough (53) being provided in the pneumatic control panel (21), the branch trough (53) being connected to a water mist nozzle (54), and the water mist nozzle (54) being installed at the bottom of the pneumatic control panel (21).

4. The oil-immersed transformer according to claim 3, characterized in that: The pneumatic cleaning device (16) is provided with an intermittent control component (6) for controlling the connection of the branch groove (53), and the intermittent control component (6) includes a valve (61) provided in the branch groove (53), a control rod (62) is provided on one side of the valve (61), and a resistance rod (63) is abutted on one side of the control rod (62), and the resistance rod (63) is slidably connected in a limiting slide groove (64), and the limiting slide groove (64) is provided on the connecting plate (1 5), an eccentric rod (67) is provided on one side of the resisting rod (63), a control groove (65) is provided in the connecting plate (15), a gear (66) and a one-way driving rod (68) are provided in the control groove (65), the side wall of the gear (66) is fixedly connected to the eccentric rod (67), a one-way member (69) is provided in the one-way driving rod (68), and a No. 2 spring (610) is provided between the one-way driving rod (68) and the control groove (65).

5. The oil-immersed transformer according to claim 4, characterized in that: The one-way component (69) includes a one-way groove (691) provided in the one-way driving rod (68), a fixed shaft (692) being fixedly connected in the one-way groove (691), a side wall of the fixed shaft (692) being rotatably connected to a one-way tooth block (694) via a torsion spring (693), and the one-way tooth block (694) being engaged with the gear (66).

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