An oil immersed transformer

Abstract

The present application relates to the technical field of transformers, and discloses an oil-immersed transformer, which includes a transformer body, a radiator, and a dust removal mechanism, wherein each group of radiators includes a plurality of fins spaced apart on the transformer body, and one side of each fin is connected to the outer wall of the transformer body; the dust removal mechanism corresponds to the radiator one by one, and each group of dust removal mechanisms includes a mounting seat, which is arranged on the outer wall of the transformer body; a bracket, which moves on the mounting seat along the height direction of the radiator, and at the same time is away from one side of the transformer body relative to all the fins of the corresponding radiator; a scraper, which is rotatably connected to the bracket, and each scraper enters between two adjacent fins; and a dust collecting part, which includes a base and a shroud; the base is detachably connected to the transformer body and abuts against the bottom of the bracket; one end of the shroud is connected to the base, and the other end opposite is connected to the bracket. The present application can improve the efficiency of cleaning the oil-immersed transformer.

Description

Technical Field

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

[0002] As a widely used power equipment, oil-immersed transformer plays a key role in the power grid. It not only enables efficient transmission of electricity, but also has good safety performance.

[0003] Existing oil-immersed transformers usually adopt an externally connected radiator to enhance the heat dissipation performance. The radiator is arranged with a plurality of heat dissipation fins, and heat dissipation is achieved through heat exchange between the heat dissipation fins and the surrounding air.

[0004] However, after the oil-immersed transformer has been running for a long time, dust is easily accumulated on the surface of the fins of the radiator, resulting in increased thermal resistance and a gradual decrease in heat dissipation efficiency. The current cleaning method is mostly manual wiping by cleaning staff. Due to the large number of heat dissipation fins, wiping one by one is not only labor-intensive but also inefficient. Summary of the invention

[0005] In order to improve the efficiency of cleaning an oil-immersed transformer, the present application provides an oil-immersed transformer.

[0006] The present application provides an oil-immersed transformer, which adopts the following technical solution:

[0007] An oil-immersed transformer comprises: a transformer body, a radiator and a dust removal mechanism, wherein the radiator has at least one group, each group of the radiators comprises a plurality of fins spaced apart on the transformer body, one side of each fin is connected to the outer wall of the transformer body, and the fins of each group of the radiators are parallel to each other; the dust removal mechanism corresponds to the radiator one by one, and each group of the dust removal mechanism comprises:

[0008] A mounting seat, arranged on the outer wall of the transformer body and opposite to the side of the radiator;

[0009] A bracket, which moves on the mounting seat along the height direction of the heat sink and is simultaneously away from one side of the transformer body relative to all the fins corresponding to the heat sink;

[0010] A scraper blade is rotatably connected to the bracket, and there are a plurality of scrapers, each of which enters between two adjacent fins; and

[0011] The dust collecting member comprises a base and a cover; the base is detachably connected to the transformer body and abuts against the bottom of the bracket and is simultaneously opposite to the bottoms of all the fins of the corresponding radiator; the cover is made of a flexible and waterproof material, one end of the cover is connected to the base, and the other end opposite to the bracket is connected;

[0012] When the bracket moves along the height direction of the radiator, it can drive the enclosure to enclose the radiator, so that an isolation cavity is formed between the base, the enclosure and the outer wall of the transformer body.

[0013] By adopting the above technical solution, the mobile bracket can clean the fins in the radiator at the same time through the scraper, so as to improve the efficiency of cleaning the oil-immersed transformer. At the same time, the dust collecting part encloses the radiator to form an isolation cavity, which can collect and isolate dust, so that the dust scraped by the fins is not easy to be scattered into the environment and affect the operator. And the isolation cavity formed by the dust collecting part is made of waterproof material, so it can store water to quickly cool the radiator.

[0014] Optionally, each group of the dust removal mechanisms has two mounting seats, the two mounting seats are located on opposite sides of the radiator, and each mounting seat includes:

[0015] a first mounting bar connected to the transformer body and extending along the height direction of the heat sink; and

[0016] A second mounting bar, hinged to the transformer body, extending along the height direction of the heat sink and opposite to the first mounting bar;

[0017] The bracket has a movable section extending between the first mounting bar and the second mounting bar, and the movable section moves on the first mounting bar along the height direction of the radiator; there is a clearance gap between the movable section and the outer wall of the transformer body, the enclosure enters the clearance gap, and the second mounting bar can be rotated to clamp the enclosure between the first mounting bar and the second mounting bar.

[0018] By adopting the above technical solution, the enclosure is clamped by the first installation bar and the second installation bar together, so that the enclosure and the first installation bar can be sealed.

[0019] Optionally, the second mounting bar is hinged to the transformer body through a hinge shaft, the hinge shaft includes a threaded section and a hinged section coaxially connected to each other; the transformer body is provided with a first seat and a second seat distributed along the height direction of the heat sink, the threaded section is threadedly moved in the first seat along the height direction of the heat sink, and the hinged section is moved in the second seat along the straight line direction of the heat sink height;

[0020] The second mounting bar is sleeved on the hinge section and located between the first seat and the second seat, and a protrusion is provided on the hinge section. The inner wall of the second mounting bar is provided with a sliding groove for the sliding movement of the protrusion, and the sliding groove extends obliquely along the circumference of the hinge section.

[0021] By adopting the above technical solution, the movement of the threaded section drives the hinged section to move, so that the cooperation between the protrusion and the sliding groove drives the second installation bar to rotate.

[0022] Optionally, a limiting protrusion is provided on the inner wall of the second seat, and a limiting groove for the limiting protrusion to slide is opened on the outer wall of the hinge section, and the length extension direction of the limiting groove is parallel to the height direction of the radiator.

[0023] By adopting the above technical solution, the cooperation between the limiting protrusion and the limiting groove can prevent the hinge shaft from excessively moving or deviating during the adjustment process, thereby improving the adjustment accuracy and stability of the dust removal mechanism.

[0024] Optionally, the bracket has an adjustment section, which extends along the distribution direction of the fins. The scraper is rotated on the adjustment section through a connecting piece, and the adjustment section has an adjustment component that cooperates with the connecting piece, which is used to adjust the rotation angle of the scraper so that the scraper can be rotated to a state of being against or separated from the outer wall of the fin.

[0025] By adopting the above technical solution, the adjustment section and the adjustment assembly cooperate to allow the scraper to adjust the angle according to the specific situation of the fin, so that the scraper can more flexibly adapt to fins of different shapes and spacings, thereby improving the dust removal efficiency and effect.

[0026] Optionally, the connecting member corresponds one-to-one with the scraper blade and is fixed to the end of the corresponding scraper blade; the adjusting assembly includes a rotating shaft, a gear and a rack; the rotating shaft is rotatably connected to the adjusting section, the rotating shaft corresponds one-to-one with the connecting member and is coaxially connected, and the connecting member is enclosed in the corresponding adjusting section; one end of the rotating shaft extends out of the adjusting section and is coaxially sleeved with the gear; the rack moves in the adjusting section along the distribution direction of the fins, and the rack is simultaneously meshed with all the gears in the same adjusting section.

[0027] By adopting the above technical solution, the synchronous adjustment of all scraper blade angles is achieved through the synchronous meshing of the rack and multiple gears, thereby improving the adjustment efficiency and accuracy.

[0028] Optionally, the adjustment component further includes a coil spring, the coil spring is sleeved on the rotating shaft, the connecting member is sleeved on the coil spring, and two ends of the coil spring that are far away from each other are respectively connected to the rotating shaft and the connecting member.

[0029] By adopting the above technical solution, the setting of the coil spring can provide appropriate elastic force, so that the scraper can fit the outer wall of the fin more closely when rotating, thereby improving the scraper's dust removal effect on the fin surface and improving the stability and efficiency of the dust removal process.

[0030] Optionally, the adjustment assembly further includes an adjusting handle, wherein the adjusting handle is threadably moved on the adjustment section along the fin distribution direction, and one end of the adjusting handle is rotatably connected to the rack.

[0031] By adopting the above technical solution, the rack is driven to move by rotating the adjustment handle, thereby adjusting the scraper angle.

[0032] Optionally, the base is formed with a dust guide cavity connected to the space between adjacent fins in the same group, the middle part of the base has a dust outlet connected to the dust guide cavity, the base is provided with a closing cover at the dust outlet, and the base gradually shrinks in the direction away from the fins.

[0033] By adopting the above technical solution, dust can be collected in the base during dust removal, and when the dust needs to be transferred, the dust is discharged through the dust outlet, so as to reduce the frequency of transferring the dust.

[0034] In summary, the present application includes at least one of the following beneficial effects:

[0035] 1. By moving the bracket, the scraper can clean all the fins on the radiator at the same time to improve the cleaning efficiency;

[0036] 2. The enclosure of the radiator by the hood can not only collect the dust scraped off by the scraper, but also store water when the radiator needs to be temporarily cooled, so that the fins can be quickly cooled by immersing in water;

[0037] 3. Adjust the scraper angle by adjusting the assembly to adapt to the spacing between the fins and improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0039] Figure 2 is a schematic diagram of the explosion structure between the transformer body and the dust removal mechanism in the embodiment of the present application;

[0040] Figure 3 is a schematic diagram of the explosion structure between the dust collecting member and the closing cover in an embodiment of the present application;

[0041] Figure 4 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0042] Figure 5 is a schematic diagram of an exploded structure between the hinge shaft and the second mounting bar in an embodiment of the present application;

[0043] Figure 6 yes Figure 5A schematic diagram of the enlarged structure at B in the middle;

[0044] Figure 7 It is a schematic diagram of the structure of the adjustment component in the embodiment of the present application.

[0045] Explanation of the reference numerals: 1. transformer body; 2. heat sink; 201. fin; 3. mounting seat; 31. first mounting bar; 32. second mounting bar; 4. bracket; 41. moving section; 42. adjusting section; 5. scraper; 6. dust collecting part; 61. base; 62. enclosure; 7. isolation chamber; 8. clearance; 9. hinge shaft; 91. threaded section; 92. hinge section; 10. first seat; 11. second seat; 12. protrusion; 13. slide groove; 14. limiting protrusion; 15. limiting groove; 16. connecting piece; 17. adjusting assembly; 171. rotating shaft; 172. gear; 173. rack; 174. coil spring; 175. adjusting handle; 18. dust guiding chamber; 19. dust outlet; 20. closing cover; 21. heat dissipation gap; 22. angle steel; 23. travel bar; 24. travel groove. DETAILED DESCRIPTION

[0046] The following is combined with Figure 1-7 This application is described in further detail.

[0047] The present application embodiment discloses an oil immersed transformer. Figure 1 The oil-immersed transformer includes a transformer body 1, a heat sink 2 and a dust removal mechanism. The transformer body 1 has a square shell, and the heat sink 2 is installed on the transformer body 1 shell and has at least one group. In this embodiment, the heat sink 2 has three groups and is respectively installed on three adjacent sides of the transformer body 1 shell. The dust removal mechanism corresponds to the heat sink 2 one by one and is used to remove dust from the heat sink 2.

[0048] Reference Figure 1 and Figure 2 Each group of heat sinks 2 includes a plurality of fins 201 parallel to each other, and the fins 201 are in the shape of square sheets. One side of all fins 201 is fixed to the outer shell of the transformer body 1 to receive the heat of the transformer body 1, and the plate surface of the fin 201 is perpendicular to the plate surface of the connected transformer body 1. A heat dissipation gap 21 is formed between two adjacent fins 201.

[0049] Reference Figure 1 and Figure 2 Each dust removal mechanism includes a mounting seat 3, a bracket 4, a scraper 5 and a dust collector 6. The mounting seat 3 is mounted on the outer wall of the transformer body 1 for mounting the bracket 4 and the dust collector 6, and the scraper 5 is mounted on the bracket 4 for scraping dust off the fin 201.

[0050] Specifically, each group of dust removal mechanisms has two mounting seats 3 , both of which are mounted on the outer wall of the transformer body 1 and are respectively opposite to the two sides of the radiator 2 that are far away from each other, and the distribution direction of the two mounting seats 3 is parallel to the distribution direction of the fins 201 in the radiator 2 .

[0051] Reference Figure 2 and Figure 3 The bracket 4 includes a moving section 41 and an adjusting section 42. The moving section 41 and the adjusting section 42 are both in the shape of a square rod. The moving section 41 has two, and the two moving sections 41 are respectively fixedly connected to the two ends of the adjusting section 42 that are away from each other, and the two moving sections 41 are parallel to each other and perpendicular to the adjusting section 42, so that the bracket 4 has a U-shaped structure. The ends of the two moving sections 41 in the bracket 4 that are away from the adjusting section 42 move up and down on the two mounting seats 3 along the height direction of the radiator 2, respectively. The adjusting section 42 is simultaneously opposite to the side of all the fins 201 in the same group that is away from the outer wall of the transformer body 1, and the length extension direction of the adjusting section 42 is parallel to the distribution direction of the fins 201.

[0052] Assuming that the number of the radiator 2 is n, the number of the heat dissipation gap 21 in the radiator 2 and the number of the scrapers 5 in the dust removal mechanism corresponding to the radiator 2 are both n-1, and the scrapers 5 in the dust removal mechanism correspond one to one to the heat dissipation gap 21. The scraper 5 is in the shape of a square sheet, one end of the scraper 5 is mounted on the adjustment section 42, and the end of the scraper 5 away from the adjustment section 42 extends to the corresponding heat dissipation gap 21, and the extension length of the scraper 5 is equivalent to the width of the fin 201 in the direction away from the outer wall of the transformer body 1, the width of the scraper 5 is greater than the straight-line distance between two adjacent fins 201, and the thickness of the scraper 5 is less than the straight-line distance between two adjacent fins 201.

[0053] Reference Figure 2 and Figure 3 The dust collecting part 6 includes a base 61 and a cover 62. The base 61 is detachably connected to the outer wall of the transformer body 1. After installation, the base 61 abuts against the bottom of the bracket 4. At the same time, the base 61 is located on the west side of all the fins 201 of the corresponding radiator 2. The cover 62 is made of a flexible waterproof cloth. The bottom end of the cover 62 is fixedly glued to the base 61, and the top end of the cover 62 is fixedly glued to the bracket 4. The cover 62 is bent and extended along the length extension direction of the moving section 41 and the adjusting section 42, so that the cover 62 also forms a U-shaped structure. After the dust collecting part 6 is installed, the base 61, the cover 62 and the outer wall of the transformer body 1 are jointly enclosed to form an isolation cavity 7 with an opening facing the scraper 5.

[0054] When the bracket 4 moves downward from the upper part of the fin 201, it can drive the cover 62 to fold toward the base 61, and at the same time drive all the scrapers 5 on the adjustment section 42 to scrape the dust on the surface of the fins 201 on both sides of itself. The scraped dust falls downward on the base 61 and is enclosed and isolated in the isolation chamber 7 by the cover 62, so as to improve the efficiency of cleaning the fin 201 and prevent the dust from being easily dispersed into the surrounding air and affecting the operator.

[0055] Reference Figure 1 and Figure 3 When the bracket 4 is located above the fin 201, the enclosure 62 is stretched by the bracket 4 and straightened between the bracket 4 and the base 61. At this time, water is poured into the enclosure 62 to immerse the radiator 2 in water, so that the radiator 2 can be cooled quickly. This situation is suitable for temporary cooling of the radiator 2. It should be noted that the bottom of the bracket 4 is lower than the bottom of the fin 201, and the bracket 4 can drive the enclosure 62 downward to leave the fin 201, so that the fin 201 is not easily blocked by the bracket 4 and the enclosure 62 when performing heat dissipation.

[0056] The base 61 is in the shape of a funnel that gradually tapers downward, so that the base 61 encloses a dust guide cavity 18 that is connected to the heat dissipation gap 21, and a dust outlet 19 that is connected to the dust guide cavity 18 is formed at the bottom of the base 61. The base 61 is also provided with a closing cover 20 at the dust outlet 19 through an interference sleeve, and the closing cover 20 is made of elastic rubber material. When the closing cover 20 closes the dust outlet 19, dust and dirt can accumulate in the dust guide cavity 18. When the closing cover 20 is opened, dust and dirt that falls into the dust guide cavity 18 can fall out from the dust outlet 19 for transfer. In addition, the base 61 is connected to an angle steel 22 by bolts, and the angle steel 22 is detachably connected to the outer wall of the transformer body 1 by bolts to install the base 61.

[0057] Reference Figure 2 and Figure 4 Furthermore, in order to improve the sealing performance of the enclosure 62 when water is stored, each mounting seat 3 includes a first mounting bar 31 and a second mounting bar 32. The first mounting bar 31 and the second mounting bar 32 are both rectangular strips, and the first mounting bar 31 is fixed to the side of the transformer away from the transformer. The first mounting bar 31 is hinged to the transformer body 1 and extends along the height direction of the radiator 2. A travel bar 23 extending vertically together is fixed on the side of the first mounting bar 31 away from the radiator 2. A travel groove 24 for sleeve-mounting the travel bar 23 is provided on the side wall of the end of the moving section 41 corresponding to the mounting seat 3 away from the adjustment section 42, and the moving section 41 moves up and down on the travel bar 23 through the travel groove 24 to guide the movement of the bracket 4.

[0058] Reference Figure 3 , Figure 4 and Figure 5The transformer body 1 is fixed with a first seat 10 and a second seat 11 along the height direction of the radiator 2, and the first seat 10 is located above the second seat 11. A hinge shaft 9 is sleeved on one side of the second mounting bar 32, and the axis of the hinge shaft 9 extends vertically and moves on the first seat 10 and the second seat 11, and the second mounting bar 32 abuts between the first seat 10 and the second seat 11. When the hinge shaft 9 moves, it drives the second mounting bar 32 to rotate relative to the transformer body 1, and the length extension direction of the second mounting bar 32 is parallel to the length extension direction of the first mounting bar 31, and the second mounting bar 32 is opposite to the first mounting bar 31. The side of the second mounting bar 32 is away from the radiator 2.

[0059] The movable section 41 is located between the first mounting bar 31 and the second mounting bar 32, and there is a gap between the end of the movable section 41 away from the adjustment section 42 and the outer wall of the transformer body 1 to form a clearance gap 8, and the side of the cover 62 extends beyond the end of the movable section 41 away from the adjustment section 42 so that the cover 62 enters the clearance gap 8.

[0060] When the enclosure 62 is unfolded and stretched, the second mounting bar 32 is rotated toward the first mounting bar 31, so that the side of the enclosure 62 at the clearance gap 8 can be clamped between the first mounting bar 31 and the second mounting bar 32, so as to seal the enclosure 62 and the first mounting bar 31. When the second mounting bar 32 is rotated away from the first mounting bar 31, it can leave the side of the enclosure 62, so that the enclosure 62 can move downward between the first mounting bar 31 and the second mounting bar 32.

[0061] Reference Figure 5 and Figure 6 , wherein the hinge shaft 9 comprises a threaded section 91 and a hinged section 92 which are coaxially connected and rotated. The threaded section 91 has an external thread on its outer wall, and the threaded section 91 is vertically penetrated and threadedly moved in the first seat 10. The hinged section 92 is vertically slidably penetrated through the second seat 11, and a limiting protrusion 14 extends inwardly on the inner wall of the second seat 11, and a limiting groove 15 is vertically extended on the outer wall of the hinged section 92 for the limiting protrusion 14 to press into and slide. Therefore, when the threaded section 91 rotates to move up and down with the thread, the hinged section 92 is driven to move up and down vertically.

[0062] In addition, a cylindrical protrusion 12 protrudes outward from the outer wall of the hinged section 92, and a sliding groove 13 for the protrusion 12 to press into and slide is opened on the inner wall of the second mounting strip 32 for the hinged section 92 to pass through. The sliding groove 13 extends obliquely along the circumference of the hinged section 92, so that the second seat 11 is driven to rotate when the hinged section 92 moves up and down.

[0063] Reference Figure 3 and Figure 7Furthermore, each scraper blade 5 is connected to a connecting member 16, which is rotatably connected to the adjusting section 42, and the adjusting section 42 has an adjusting component 17 that cooperates with the connecting member 16. The adjusting component 17 can adjust the rotation angle of the connecting member 16, thereby adjusting the rotation angle of the scraper blade 5, so that the scraper blade 5 can be rotated to a vertical and oblique state on the plate surface.

[0064] Reference Figure 3 and Figure 4 Before the bracket 4 is moved upward, the scraper 5 is first rotated to be vertical on the board surface. At this time, the scraper 5 is located in the middle of the heat dissipation gap 21 and does not contact the two adjacent fins 201. Therefore, when the bracket 4 is moved upward, it is not easy to disturb and scrape the dust on the fins 201. Before the bracket 4 is moved downward, the scraper 5 is first rotated obliquely on the board surface. At this time, the opposite sides of the scraper 5 are respectively against the two adjacent fins 201. Therefore, when the bracket 4 is moved downward, the dust on the fins 201 can be scraped downward.

[0065] Reference Figure 3 and Figure 6 , wherein the adjustment assembly 17 includes a rotating shaft 171, a gear 172, a rack 173, a coil spring 174 and an adjustment handle 175. The rotating shaft 171 is rotatably connected to the adjustment section 42, the axis of the rotating shaft 171 extends horizontally and is perpendicular to the length direction of the adjustment section 42, and the rotating shaft 171 corresponds to the connecting member 16 one by one. The connecting member 16 is in the shape of a circular sleeve, one end of the connecting member 16 is fixed to the end of the scraper 5 away from the transformer body 1, and the connecting member 16 is rotatably connected to the adjustment section 42, and at the same time, the connecting member 16 is coaxially enclosed on the corresponding end of the rotating shaft 171 close to the scraper 5.

[0066] The coil spring 174 corresponds to the rotating shaft 171 one by one, and is sleeved on the outer wall of the rotating shaft 171. The connecting member 16 sleeves the coil spring 174, and one end of the coil spring 174 is fixed to the outer wall of the rotating shaft 171, and the other end of the coil spring 174 is fixed to the inner wall of the connecting member 16. The gear 172 corresponds to the rotating shaft 171 one by one, and the end of the rotating shaft 171 away from the scraper 5 extends out of the connecting member 16, and the gear 172 is coaxially sleeved and fixed on the outer wall of the rotating shaft 171 away from the scraper 5.

[0067] The rack 173 moves in the adjusting section 42 along the length direction of the adjusting section 42, the teeth on the rack 173 are distributed along the length direction of the adjusting section 42, and the rack 173 is simultaneously meshed with all the gears 172 in the adjusting section 42. The adjustment handle 175 is in the shape of a round rod, one end of the adjustment handle 175 is rotatably connected to the end of the rack 173, and the other end of the adjustment handle 175 is threadedly moved on the adjusting section 42 along the length direction of the adjusting section 42, and the end of the adjustment handle 175 away from the rack 173 is simultaneously slid out of the moving section 41 and the enclosure 62 and has a handle, so that the operator can operate the adjustment handle 175.

[0068] By rotating the adjusting handle 175, the adjusting handle 175 is threadedly moved along the length direction of the adjusting section 42, so as to drive the rack 173 to adjust the position along the length direction of the adjusting section 42, thereby driving the rotating shaft 171 to rotate through the gear 172, and when the rotating shaft 171 rotates, the connecting member 16 and the scraper 5 are driven to rotate together through the coil spring 174. When the scraper 5 rotates to the state where the plate surface extends vertically, the coil spring 174 is in a natural state. When the scraper 5 rotates to the state where the plate surface extends obliquely and abuts against the fin 201, the coil spring 174 is subjected to the tension and undergoes elastic deformation, so that the scraper 5 can be more closely attached to the surface of the fin 201, thereby improving the cleaning effect. In addition, after the bracket 4 drives the scraper 5 to move downward to leave the heat dissipation gap 21, the scraper 5 can be rotated to abut against each other between two adjacent scrapers 5, so as to separate the dust collected in the heat dissipation gap 21 and the dust guide chamber 18 through the scraper 5, so that the dust collected in the base 61 is not easy to contaminate the fin 201 again. Furthermore, in order to improve the stability of the movement of the rack 173 , a strip-shaped guide portion (not shown in the figure) protrudes from the outer wall of the rack 173 , and a guide groove for the guide portion to slide is provided on the inner wall of the adjustment section 42 to guide the movement of the rack 173 .

[0069] The implementation principle of an oil-immersed transformer in an embodiment of the present application is: by moving the adjusting handle 175 by threading, the rack 173, the gear 172, the rotating shaft 171 and the connecting member 16 are linked in sequence, so that the scraper 5 is first turned to a vertical state, and then the bracket 4 is moved to the upper part of the fin 201, and then the scraper 5 is turned to an inclined state and against the fin 201, and then the bracket 4 is moved downward, so that the scraper 5 can scrape the dust on the surface of the fin 201 into the cover 62 and collect it in the base 61.

[0070] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An oil-immersed transformer, characterized in that: include: A transformer body (1), a heat sink (2), and a dust removal mechanism, wherein the heat sink (2) comprises at least one group, each group of the heat sinks (2) comprises a plurality of fins (201) spaced apart and distributed on the transformer body (1), one side of each of the fins (201) is connected to an outer wall of the transformer body (1), and the fins (201) of each group of the heat sinks (2) are parallel to each other; the dust removal mechanism corresponds to the heat sink (2) one by one, and each group of the dust removal mechanism comprises: A mounting seat (3) is arranged on the outer wall of the transformer body (1) and is opposite to the side of the heat sink (2); A bracket (4), comprising a moving section (41) and an adjusting section (42), wherein the moving section (41) has two, the two moving sections (41) being respectively fixedly connected to two ends of the adjusting section (42) that are away from each other, and the two moving sections (41) are parallel to each other and perpendicular to the adjusting section (42); the ends of the two moving sections (41) in the bracket (4) that are away from the adjusting section (42) respectively move up and down on the two mounting seats (3) along the height direction of the heat sink (2), the adjusting section (42) is simultaneously opposite to a side of all the fins (201) in the same group that is away from the outer wall of the transformer body (1), and the length extension direction of the adjusting section (42) is parallel to the distribution direction of the fins (201); A scraper (5) is rotatably connected to the bracket (4), and is provided in plurality, each scraper (5) respectively entering between two adjacent fins (201); as well as The dust collecting member (6) comprises a base (61) and a cover (62); the base (61) is detachably connected to the transformer body (1) and abuts against the bottom of the bracket (4), and is also opposite to the bottoms of all the fins (201) corresponding to the heat sink (2); the cover (62) is made of a flexible and waterproof material, one end of the cover (62) is connected to the base (61), and the other end opposite to the bracket (4); Wherein, when the bracket (4) moves in the height direction of the radiator (2), it can drive the enclosure (62) to enclose the radiator (2), so that an isolation cavity (7) is formed between the base (61), the enclosure (62) and the outer wall of the transformer body (1); The adjustment section (42) extends along the distribution direction of the fins (201); the scraper (5) is rotated on the adjustment section (42) via a connecting piece (16); and the adjustment section (42) has an adjustment component (17) that cooperates with the connecting piece (16) and is used to adjust the rotation angle of the scraper (5) so that the scraper (5) can be rotated to a state where it abuts against or separates from the outer wall of the fin (201); The connecting member (16) corresponds to the scraper (5) one by one and is fixed to the end of the corresponding scraper (5); the adjusting assembly (17) comprises a rotating shaft (171), a gear (172) and a rack (173); the rotating shaft (171) is rotatably connected to the adjusting section (42); the rotating shaft (171) corresponds to the connecting member (16) one by one and is coaxially connected to the connecting member (16); the connecting member (16) is enclosed by the corresponding rotating shaft (171); one end of the rotating shaft (171) extends out of the connecting member (16) and is coaxially sleeved by the gear (172); the rack (173) moves in the adjusting section (42) along the distribution direction of the fins (201), and the rack (173) is simultaneously meshed with all the gears (172) in the same adjusting section (42); The adjustment assembly (17) further comprises an adjustment handle (175), wherein the adjustment handle (175) is threadably moved on the adjustment section (42) along the distribution direction of the fins (201), and one end of the adjustment handle (175) is rotatably connected to the rack (173).

2. The oil-immersed transformer according to claim 1, characterized in that: The mounting seats (3) in each group of the dust removal mechanisms are two, the two mounting seats (3) are respectively located on two opposite sides of the radiator (2), and each mounting seat (3) comprises: A first mounting bar (31) connected to the transformer body (1) and extending along the height direction of the heat sink (2); and A second mounting bar (32) is hingedly connected to the transformer body (1), extends along the height direction of the heat sink (2), and is opposite to the first mounting bar (31); The movable section (41) extends between the first mounting bar (31) and the second mounting bar (32), and the movable section (41) moves on the first mounting bar (31) along the height direction of the heat sink (2); a clearance gap (8) is provided between the movable section (41) and the outer wall of the transformer body (1), the enclosure (62) enters the clearance gap (8), and the second mounting bar (32) can be rotated to clamp the enclosure (62) between the first mounting bar (31) and the second mounting bar (32).

3. The oil-immersed transformer according to claim 2, characterized in that: The second mounting bar (32) is hinged to the transformer body (1) via a hinge shaft (9), the hinge shaft (9) comprising a threaded section (91) and a hinge section (92) coaxially rotatably connected; the transformer body (1) is provided with a first seat (10) and a second seat (11) distributed along the height direction of the heat sink (2), the threaded section (91) is threadably moved in the first seat (10) along the height direction of the heat sink (2), and the hinge section (92) is moved in the second seat (11) along the height linear direction of the heat sink (2); The second mounting strip (32) is sleeved on the hinge section (92) and is located between the first seat (10) and the second seat (11), and a protrusion (12) is provided on the hinge section (92), and a sliding groove (13) for the protrusion (12) to slide is provided on the inner wall of the second mounting strip (32), and the sliding groove (13) extends obliquely along the circumference of the hinge section (92).

4. The oil-immersed transformer according to claim 3, characterized in that: A limiting protrusion (14) is provided on the inner wall of the second seat (11), and a limiting groove (15) for the limiting protrusion (14) to slide is provided on the outer wall of the hinge section (92), wherein the length extension direction of the limiting groove (15) is parallel to the height direction of the radiator (2).

5. The oil-immersed transformer according to claim 1, characterized in that: The adjustment component (17) further comprises a coil spring (174), wherein the coil spring (174) is sleeved on the rotating shaft (171), the connecting member (16) is sleeved on the coil spring (174), and two ends of the coil spring (174) that are away from each other are respectively connected to the rotating shaft (171) and the connecting member (16).

6. The oil-immersed transformer according to claim 1, characterized in that: The base (61) is formed with a dust guide cavity (18) connected to the space between adjacent fins (201) in the same group, the middle of the base (61) is provided with a dust outlet (19) connected to the dust guide cavity (18), the base (61) is provided with a closing cover (20) at the dust outlet (19), and the base (61) gradually shrinks in a direction away from the fins (201).

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