Efficient heat dissipation mechanism for oil-immersed transformer

Abstract

The utility model relates to the technical field of oil-immersed transformers, in particular to an efficient heat dissipation mechanism for an oil-immersed transformer. A mounting groove and a sliding groove are formed in the side surface of a transformer body, a transmission housing is movably arranged on the inner wall of the mounting groove, a tooth block is fixed to the outer surface of the transmission housing, a transmission block is movably arranged on the inner wall of the sliding groove, a tooth groove is formed in the side surface, close to the end, of the transmission block, auxiliary cooling fins are fixed to the inner and outer side surfaces of cooling fins, and protruding blocks are fixed to the side surfaces of the cooling fins. The LED lamp has the advantages that due to the fact that the triangle has stability, the cooling fins cannot deform due to long-time high temperature, the auxiliary cooling fins are fixed to the inner sides and the outer sides of the cooling fins, the contact area between the cooling fins and air is increased, the cooling time is shortened, meanwhile, the auxiliary cooling fins are arranged and fixed in a V shape, and the cooling effect is improved. Therefore, the heat dissipation fins of the main body of the oil-immersed transformer are prevented from being deformed due to heating of the heat dissipation fins of the main body of the oil-immersed transformer.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-immersed transformers, and specifically relates to an efficient heat dissipation mechanism for an oil-immersed transformer. Background Technique

[0002] An oil-immersed transformer is a transformer that uses oil as the main insulation means and is widely used in the power supply and distribution systems of industrial and mining enterprises and civil buildings.

[0003] In the prior art, the windings and iron cores of oil-immersed transformers are all installed in a fuel tank filled with transformer oil. The fuel tank is welded with steel plates. When the transformer is in operation, copper loss and iron loss will be generated. These two parts of the losses are finally all converted into heat energy, causing the iron core and windings of the high-frequency transformer to heat up. In addition, the windings also generate heat through the current, causing the temperature of the oil in the fuel tank to rise. The existing oil-immersed transformers usually dissipate heat passively through the heat dissipation fins arranged on the transformer fuel tank frame to keep the transformer temperature stable.

[0004] However, setting multiple groups of heat dissipation fins dissipates heat by increasing the area of the outside of the oil-immersed transformer in contact with the air. When the heat dissipation fins are in a high temperature for a long time, they are prone to deformation, resulting in adjacent heat dissipation fins being squeezed against each other, which affects the heat dissipation effect. Content of the Utility Model

[0005] The purpose of the utility model is to provide an efficient heat dissipation mechanism for an oil-immersed transformer to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An efficient heat dissipation mechanism for an oil-immersed transformer, the efficient heat dissipation mechanism for an oil-immersed transformer includes:

[0007] A transformer main body, an installation groove and a sliding groove are opened on the side surface of the transformer main body. A transmission cover is movably arranged on the inner wall of the installation groove. Tooth blocks are fixed on the outer surface of the transmission cover. A transmission block is movably arranged on the inner wall of the sliding groove. A tooth groove is opened on the side surface of the end of the transmission block close to the end;

[0008] Heat dissipation fins, auxiliary heat dissipation fins are fixed on the inner and outer side surfaces of the heat dissipation fins. A convex block is fixed on the side surface of the heat dissipation fins. A limiting block is fixed on the outer surface of the convex block.

[0009] Preferably, the installation groove and the sliding groove are communicated. An inner groove is opened inside the transmission cover. A notch is opened at the port of the inner groove. A positioning block is fixed on the inner wall of the inner groove. A connecting groove is opened on the inner wall of the inner groove at the port.

[0010] Preferably, the tooth groove corresponds to and engages with the tooth block. A threaded hole is opened on the side surface of the end of the transmission block opposite to the tooth groove.

[0011] Preferably, a through groove is formed on the side surface of the transformer body, and the through groove communicates with the sliding groove. A limiting collar is fixed on the surface of the transformer body, and a guide rod is movably arranged on the inner wall of the limiting collar.

[0012] Preferably, a forward helix and a reverse helix are formed on the outer surface of the guide rod, and the forward helix and the reverse helix correspond to and are engaged with threaded holes formed on the surface of the transmission block.

[0013] Preferably, the convex block corresponds to and is engaged with the inner groove, and is movably connected. The limiting block corresponds to and is engaged with the connecting groove, and is movably connected.

[0014] Preferably, a positioning groove is formed on the side surface of the limiting block, and the positioning block corresponds to and is engaged with the positioning groove, and is movably connected. The auxiliary heat sink is in a 'V' shape.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The sheet-shaped heat sink is replaced with a triangular heat sink. Due to the stability of the triangle, the heat sink will not be deformed due to long-term exposure to high temperature. Auxiliary heat sinks are fixed on both the inner and outer sides of the heat sink, increasing the contact area with air, accelerating the heat dissipation time. At the same time, the auxiliary heat sinks are arranged and fixed in a 'V' shape, so the auxiliary heat sinks will not be deformed either, thus preventing the heat dissipation fins of the oil-immersed transformer body from being deformed by heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a three-dimensional exploded schematic diagram of the sectional structure of the heat sink assembly of the present utility model;

[0019] Figure 3 is a sectional three-dimensional schematic diagram of the structure of the transformer body of the present utility model;

[0020] Figure 4 is a sectional three-dimensional schematic diagram of the structure of the transmission housing of the present utility model;

[0021] Figure 5 is an exploded three-dimensional schematic diagram of the structure of the transmission assembly of the present utility model;

[0022] Figure 6 is a schematic diagram of the structure of the heat sink assembly of the present utility model;

[0023] Figure 7 is a three-dimensional schematic diagram of the structure of the convex block of the present utility model.

[0024] In the figure: 1. Transformer main body; 2. Radiator fin; 3. Transmission block; 4. Transmission housing; 5. Installation groove; 6. Sliding groove; 7. Limiting collar; 8. Through groove; 9. Tooth block; 10. Inner groove; 11. Connection groove; 12. Notch; 13. Positioning block; 14. Tooth groove; 15. Forward helix; 16. Guide rod; 17. Reverse helix; 18. Auxiliary radiator fin; 19. Protrusion; 20. Limiting block; 21. Positioning groove. Detailed implementation manner

[0025] In order to clearly and completely describe the purpose, technical solution of the present invention and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0026] Embodiment 1: Please refer to Figures 1 to 7 , the present utility model provides a technical solution: a high-efficiency heat dissipation mechanism for an oil-immersed transformer. An installation groove 5 and a sliding groove 6 are provided on the side surface of the transformer main body 1. A transmission housing 4 is movably arranged on the inner wall of the installation groove 5. A tooth block 9 is fixed on the outer surface of the transmission housing 4. A transmission block 3 is movably arranged on the inner wall of the sliding groove 6. A tooth groove 14 is provided on the side surface of the transmission block 3 near the end. The movement of the transmission block 3 will drive the transmission housing 4 to rotate on the outer surface of the protrusion 19 along the positioning groove 21 through the cooperation of the tooth groove 14 and the tooth block 9, so that the limiting block 20 and the connection groove 11 are no longer corresponding.

[0027] Auxiliary radiator fins 18 are fixed on the inner and outer side surfaces of the radiator fin 2. Auxiliary radiator fins 18 are fixed on both the inner and outer sides of the radiator fin 2, increasing the area of contact with air and accelerating the heat dissipation time. A protrusion 19 is fixed on the side surface of the radiator fin 2, and a limiting block 20 is fixed on the outer surface of the protrusion 19. The radiator fin 2 is connected to the transformer main body 1 through the protrusion 19.

[0028] On the basis of Embodiment 1, in order to prevent the heat dissipation fins of the oil-immersed transformer main body 1 from being deformed by heat, the installation groove 5 and the sliding groove 6 are communicated. An inner groove 10 is provided inside the transmission housing 4. A notch 12 is provided at the port of the inner groove 10. A positioning block 13 is fixed on the inner wall of the inner groove 10. A connection groove 11 is provided on the inner wall of the inner groove 10 near the port.

[0029] The tooth groove 14 corresponds to and is engaged with the tooth block 9. The movement of the transmission block 3 will drive the transmission housing 4 to rotate on the outer surface of the protrusion 19 along the positioning groove 21 through the cooperation of the tooth groove 14 and the tooth block 9, so that the limiting block 20 and the connection groove 11 are no longer corresponding. A threaded hole is provided on the side surface of the end of the transmission block 3 opposite to the tooth groove 14.

[0030] A through groove 8 is formed on the surface of one side of the transformer body 1. The through groove 8 communicates with the sliding groove 6. A limiting collar 7 is fixed on the surface of the transformer body 1, and a guide rod 16 is movably arranged on the inner wall of the limiting collar 7.

[0031] Positive helices 15 and reverse helices 17 are formed on the outer surface of the guide rod 16. The positive helices 15 and reverse helices 17 correspond to and are clamped in the threaded holes formed on the surface of the transmission block 3. Since the two groups of threads formed on the surface of the guide rod 16 have opposite directions, when the guide rod 16 rotates, it will drive the upper and lower two groups of transmission blocks 3 to move towards or away from each other.

[0032] The convex block 19 corresponds to and is clamped in the inner groove 10, showing a movable connection. The limiting block 20 corresponds to and is clamped in the connection groove 11, showing a movable connection.

[0033] A positioning groove 21 is formed on the side surface of the limiting block 20. The positioning block 13 corresponds to and is clamped in the positioning groove 21, showing a movable connection. The auxiliary heat dissipation fins 18 are in a 'V' shape and are arranged and fixed in a 'V' shape. Therefore, the auxiliary heat dissipation fins 18 will not be deformed either.

[0034] The specific solution of this scheme is as follows: Replace the sheet-shaped heat dissipation fins 2 with triangular heat dissipation fins 2. Since a triangle has stability, the heat dissipation fins 2 will not be deformed due to long-term exposure to high temperature. Auxiliary heat dissipation fins 18 are fixed on both the inner and outer sides of the heat dissipation fins 2, increasing the contact area with the air and accelerating the heat dissipation time. At the same time, the auxiliary heat dissipation fins 18 are arranged and fixed in a 'V' shape. Therefore, the auxiliary heat dissipation fins 18 will not be deformed either, thus preventing the heat dissipation fins of the oil-immersed transformer body 1 from being deformed by heat. And the convex block 19 and the limiting block 20 are correspondingly clamped with the inner groove 10 and the connection groove 11. Then, rotate the guide rod 16 in the limiting collar 7. Since the two groups of threads formed on the surface of the guide rod 16 have opposite directions, when the guide rod 16 rotates, it will drive the upper and lower two groups of transmission blocks 3 to move towards or away from each other. The movement of the transmission block 3 will drive the transmission cover 4 to rotate along the positioning groove 21 on the outer surface of the convex block 19 through the cooperation of the tooth grooves 14 and the tooth blocks 9, so that the limiting block 20 no longer corresponds to the connection groove 11. At this time, the convex block 19 will not break out of the inner groove 10. Therefore, the heat dissipation fins 2 will not be separated from the transformer body 1, realizing the detachable connection of the heat dissipation fins 2 on the transformer body 1. When a certain group of heat dissipation fins 2 is damaged, only the damaged group of heat dissipation fins 2 needs to be replaced, without the need to replace the entire transformer shell, reducing the cost.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient heat dissipation mechanism for an oil-immersed transformer, characterized in that: The high-efficiency heat dissipation mechanism for the oil-immersed transformer includes: The transformer body (1), on the side surface of the transformer body (1), an installation groove (5) and a sliding groove (6) are provided. Inside the inner wall of the installation groove (5), a transmission housing (4) is movably arranged. On the outer surface of the transmission housing (4), a tooth block (9) is fixed. Inside the inner wall of the sliding groove (6), a transmission block (3) is movably arranged. On the side surface of the end of the transmission block (3), a tooth groove (14) is provided. The heat sink (2), on the inner and outer side surfaces of the heat sink (2), auxiliary heat sinks (18) are fixed. On the side surface of the heat sink (2), a convex block (19) is fixed. On the outer surface of the convex block (19), a limit block (20) is fixed.

2. The high-efficiency heat dissipation mechanism for an oil-immersed transformer according to claim 1, wherein: The installation groove (5) and the sliding groove (6) are communicated. Inside the transmission housing (4), an inner groove (10) is provided. At the port of the inner groove (10), a notch (12) is provided. On the inner wall of the inner groove (10), a positioning block (13) is fixed. At the inner wall of the port of the inner groove (10), a connecting groove (11) is provided.

3. The highly efficient heat dissipation mechanism for an oil-immersed transformer according to claim 2, characterized in that: The tooth groove (14) corresponds to and engages with the tooth block (9). On the side surface of the end of the transmission block (3) opposite to the tooth groove (14), a threaded hole is provided.

4. The high-efficiency heat dissipation mechanism for an oil-immersed transformer according to claim 3, wherein: On the side surface of the transformer body (1), a through groove (8) is provided. The through groove (8) is communicated with the sliding groove (6). On the surface of the transformer body (1), a limit collar (7) is fixed. Inside the inner wall of the limit collar (7), a guide rod (16) is movably arranged.

5. The high-efficiency heat dissipation mechanism for an oil-immersed transformer according to claim 4, wherein: On the outer surface of the guide rod (16), a forward helix (15) and a reverse helix (17) are provided. The forward helix (15) and the reverse helix (17) correspond to and engage with the threaded hole provided on the surface of the transmission block (3).

6. The high-efficiency heat dissipation mechanism for an oil-immersed transformer according to claim 5, characterized in that: The convex block (19) corresponds to and engages with the inner groove (10), showing a movable connection. The limit block (20) corresponds to and engages with the connecting groove (11), showing a movable connection.

7. The high-efficiency heat dissipation mechanism for an oil-immersed transformer according to claim 6, characterized in that: On the side surface of the limit block (20), a positioning groove (21) is provided. The positioning block (13) corresponds to and engages with the positioning groove (21), showing a movable connection. The auxiliary heat sink (18) is in a 'V' shape.

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