Tap connection structure of dry-type transformer

Abstract

The utility model discloses a dry-type transformer tapping connection structure which comprises a transformer body, the top face of the transformer body is fixedly connected with a top plate, the top face of the top plate is fixedly connected with a plurality of second conductive blocks distributed at equal intervals, and a first conductive block is arranged above each second conductive block. A conductive ring is jointly connected between the conductive blocks I and the conductive blocks II, two side plates in mirror symmetry are arranged outside each conductive block I, the side plates are vertically fixed on the top surface of the top plate, one conductive block I is telescopically connected between each two side plates, a fastener is arranged on the top surface of each conductive block I, and the fastener penetrates through the conductive ring and is connected with the conductive block II. According to the utility model, the top surface of the top plate is fixedly connected with the plurality of pairs of side plates, the inner sides of each pair of side plates are provided with the conductive blocks I, the conductive blocks II and the fasteners, and the conductive blocks I are telescopically connected between the two side plates, so that a plurality of nuts do not need to be dismounted to dismount the conductive ring, and the dismounting efficiency of the conductive ring and the transformer body is further improved.

Description

Technical Field

[0001] This utility model relates to the field of dry-type transformer technology, and in particular to a dry-type transformer tap connection structure. Background Technology

[0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, docks, CNC machinery, and other applications. Simply put, a dry-type transformer is one whose core and windings are not immersed in insulating oil. Dry-type transformers offer advantages such as flame retardancy, pollution-free operation, explosion-proof design, moisture resistance, strong overload capacity, and low no-load loss. They also feature low partial discharge, low noise, high reliability, and long service life. They are particularly suitable for important locations such as high-rise buildings, business centers, theaters, hospitals, hotels, tunnels, subways, underground power stations, laboratories, stations, docks, airports, and combined substations. A dry-type transformer consists of coils and terminals. However, in modern transformers, the coil is typically fitted onto the outside of the terminals, and multiple nuts are screwed on to press the coil under the nuts, thus fixing the coil to the terminals. Disconnecting the coil from the terminals requires unscrewing these nuts, which is cumbersome. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dry-type transformer tap connection structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a dry-type transformer tap connection structure, comprising a transformer body, a top plate fixedly connected to the top surface of the transformer body, a plurality of equidistantly distributed conductive blocks II fixedly connected to the top surface of the top plate, a conductive block I above each conductive block II, a conductive ring connected between the conductive blocks I and the conductive blocks II, a wire radially welded to the outer edge of the conductive ring, two mirror-symmetrical side plates on the outside of each conductive block I, the side plates being vertically fixed to the top surface of the top plate, a conductive block I telescopically connected between every two side plates, a fastener on the top surface of the conductive block I, the fastener passing through the conductive ring and connected to the conductive block II.

[0005] As a further description of the above technical solution: a heat dissipation fin is fixed around each of the four sides of the transformer body, a base plate is fixedly connected to the bottom surface of the transformer body, a plurality of equally spaced mounting holes are vertically fixed to the top surface of the base plate, and a lifting lug is fixedly connected to the top surface of the top plate.

[0006] As a further description of the above technical solution: each of the side plates has a vertically formed arc-shaped groove on its inner side, and an axially formed sliding groove on the inner wall of the arc-shaped groove. A spring is vertically fixed in the sliding groove, and a slider is fixedly connected to the end of the spring. The slider is slidably connected in the sliding groove, and the slider is fixedly connected to the conductive block.

[0007] As a further description of the above technical solution: the fastener includes a positioning post that is fixedly inserted through the center of the top surface of the first conductive block, the positioning post passes through the conductive ring, the top surface of the positioning post is perpendicularly inserted through a countersunk hole, an external threaded block is movably connected in the countersunk hole, and the external threaded block is movably connected to the top surface of the second electric conductive block.

[0008] As a further description of the above technical solution: a smooth bolt is movably inserted into the countersunk hole, and a second spring is sleeved on the outer edge of the smooth bolt. The second spring is located inside the countersunk hole. A receiving groove communicating with the countersunk hole is axially opened on the bottom surface of the positioning post. The smooth bolt passes through the receiving groove and is vertically fixed to the top surface of the external threaded block. A threaded groove is axially opened on the top surface of the second conductive block, and the external threaded block is threadedly connected in the threaded groove.

[0009] As a further description of the above technical solution: the top surface of the conductive ring is axially permeated with multiple equidistant annularly distributed through holes, and a conductive post is movably connected in each of the through holes. Each conductive post is vertically fixed to the top surface of the conductive block two. The bottom surface of the conductive block one is axially opened with multiple equidistant annularly distributed positioning grooves, and a conductive post is movably inserted in each of the positioning grooves.

[0010] As a further description of the above technical solution: the positioning post, the side plate, and the light rod bolt are all made of insulating material.

[0011] This utility model has the following beneficial effects:

[0012] Compared with existing technologies, this dry-type transformer tap connection structure, by fixing multiple pairs of side plates to the top surface of the top plate, and setting conductive block one, conductive block two and fasteners on the inner side of each pair of side plates, and telescopically connecting conductive block one between the two side plates, facilitates quick assembly and disassembly of the conductive ring without the need to remove and install multiple nuts to disassemble the conductive ring, thereby improving the assembly and disassembly efficiency of the conductive ring and the transformer body. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0015] Figure 3 This is a cross-sectional view showing the connection between the side plate and the top plate of this utility model;

[0016] Figure 4 This utility model Figure 2 Enlarged view of the structure at point B;

[0017] Figure 5 This utility model Figure 2 Enlarged view of the structure at point C.

[0018] Legend:

[0019] 1. Base plate; 2. Mounting hole; 3. Transformer body; 4. Heat sink fins; 5. Top plate; 6. Lifting lug; 7. Side plate; 8. Positioning post; 9. Smooth rod bolt; 10. Arc groove; 11. Conductive block one; 12. Conductive block two; 13. Wire; 14. Conductive ring; 15. Slider; 16. Slide groove; 17. Spring one; 18. Spring two; 19. Countersunk hole; 20. Storage groove; 21. External threaded block; 22. Threaded groove; 23. Positioning groove; 24. Through hole; 25. Conductive post. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1 to 5This utility model provides a dry-type transformer tap connection structure, including a transformer body 3, a top plate 5 fixedly connected to the top surface of the transformer body 3, a lifting lug 6 fixedly connected to the top surface of the top plate 5, and multiple equidistantly distributed conductive blocks 12 fixedly connected to the top surface of the top plate 5. Each conductive block 12 has a conductive block 11 above it. A conductive ring 14 connects the conductive blocks 11 and 12. Multiple equidistantly distributed annular through holes 24 axially penetrate the top surface of the conductive ring 14. A conductive post 25 is movably inserted into each through hole 24. Both the conductive ring 14 and the conductive post 25 are vertically fixed to the top surface of the conductive block 12. Multiple equidistantly distributed annular positioning grooves 23 are axially opened on the bottom surface of the conductive block 11. Each positioning groove 23... Each slot 23 is movably inserted with a conductive post 25. A wire 13 is radially welded to the outer edge of the conductive ring 14. Each conductive block 11 has two mirror-symmetrical side plates 7 on its exterior. The side plates 7 are vertically fixed to the top surface of the top plate 5. Each pair of side plates 7 is telescopically connected with a conductive block 11. Each side plate 7 has a vertically formed arc-shaped groove 10 on its inner side. The inner wall of the arc-shaped groove 10 has an axially formed sliding groove 16. A spring 17 is vertically fixed in the sliding groove 16. The end of the spring 17 is fixedly connected to a slider 15. The slider 15 is slidably connected in the sliding groove 16. The slider 15 is fixedly connected to the conductive block 11. The top surface of the conductive block 11 is provided with a fastener. The fastener passes through the conductive ring 14 and is connected to the conductive block 2 12.

[0022] The fasteners include a positioning post 8 that is fixedly inserted through the center of the top surface of the conductive block 11, the positioning post 8 passing through the conductive ring 14, the top surface of the positioning post 8 vertically penetrating the countersunk hole 19, the external threaded block 21 being movably connected inside the countersunk hole 19, the external threaded block 21 being movably connected to the top surface of the electric conductive block 12, the smooth bolt 9 being movably inserted inside the countersunk hole 19, the outer edge of the smooth bolt 9 being sleeved with the spring 18, the spring 18 being located inside the countersunk hole 19, the bottom surface of the positioning post 8 having an axially formed receiving groove 20 communicating with the countersunk hole 19, the smooth bolt 9 passing through the receiving groove 20 and being vertically fixed to the top surface of the external threaded block 21, the top surface of the conductive block 12 having an axially formed threaded groove 22, the external threaded block 21 being threadedly connected to the threaded groove 22, a heat dissipation fin 4 being fixed around each of the four sides of the transformer body 3, the bottom surface of the transformer body 3 being fixedly connected to the base plate 1, the top surface of the base plate 1 having a plurality of equally spaced mounting holes 2 being vertically fixed, the positioning post 8, the side plate 7 and the smooth bolt 9 being all made of insulating material.

[0023] By fixing multiple pairs of side plates 7 to the top surface of the top plate 5, and setting conductive block 11, conductive block 2 12 and fasteners on the inner side of each pair of side plates 7, and telescopically connecting conductive block 11 between the two side plates 7, it is convenient to quickly disassemble and assemble the conductive ring 14 without having to disassemble and assemble multiple nuts to disassemble the conductive ring 14, thereby improving the disassembly and assembly efficiency of the conductive ring 14 and the transformer body 3.

[0024] Working principle: When connecting the conductive ring 14 to the transformer body 3, firstly rotate the smooth bolt 9. The smooth bolt 9 drives the external threaded block 21 to move away from the threaded groove 22. At the same time, the spring 18 in the countersunk hole 19 returns to its original position, pushing the end face of the smooth bolt 9 out of the countersunk hole 19. Then, pull the positioning pin 8 upward. The positioning pin 8 drives the conductive block 11 to rise, and the spring 17 is compressed. Then, the conductive ring 14 is installed on the top surface of the conductive block 12, so that the through hole 24 on the conductive ring 14 is sleeved on the outside of the conductive post 25 on the top surface of the conductive block 12. Then, release the positioning pin 8, and the spring 17... 17. Reset the circuit so that conductive block 11 presses against the top surface of conductive ring 14, and the top surface of conductive post 25 is inserted into positioning groove 23. Then press down on the smooth rod bolt 9 so that spring 21 is compressed slightly, causing external thread block 21 to abut against the upper opening of thread groove 22. Then rotate the smooth rod bolt 9, which drives external thread block 21 to rotate, so that external thread block 21 is screwed into thread groove 22. At the same time, spring 21 is further compressed. When disassembling, simply separate conductive block 11 and conductive block 22, and remove conductive ring 14 directly from the top surface of conductive block 22.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dry-type transformer tap connection structure, comprising a transformer body (3), characterized in that: The top surface of the transformer body (3) is fixedly connected to a top plate (5). The top surface of the top plate (5) is fixedly connected to multiple equidistant conductive blocks two (12). Each conductive block two (12) has a conductive block one (11) above it. The conductive block one (11) and the conductive block two (12) are connected together by a conductive ring (14). A wire (13) is radially welded to the outer edge of the conductive ring (14). Each conductive block one (11) has two mirror-symmetrical side plates (7) on its outside. The side plates (7) are vertically fixed to the top surface of the top plate (5). Each pair of side plates (7) is telescopically connected to a conductive block one (11). The top surface of the conductive block one (11) is provided with a fastener. The fastener passes through the conductive ring (14) and is connected to the conductive block two (12).

2. The tap connection structure of a dry-type transformer according to claim 1, characterized in that: A heat dissipation fin (4) is fixed around each of the transformer body (3). A base plate (1) is fixedly connected to the bottom surface of the transformer body (3). Multiple equally spaced mounting holes (2) are vertically fixed to the top surface of the base plate (1). A lifting lug (6) is fixedly connected to the top surface of the top plate (5).

3. The tap connection structure of a dry-type transformer according to claim 1, characterized in that: Each of the side plates (7) has a vertically formed arc-shaped groove (10) on its inner side. The inner wall of the arc-shaped groove (10) has an axially formed sliding groove (16). A spring (17) is vertically fixed in the sliding groove (16). The end of the spring (17) is fixedly connected to a slider (15). The slider (15) is slidably connected in the sliding groove (16). The slider (15) is fixedly connected to the conductive block (11).

4. The tap connection structure of a dry-type transformer according to claim 1, characterized in that: The fastener includes a positioning post (8) that is fixedly inserted through the center of the top surface of the first conductive block (11). The positioning post (8) passes through the conductive ring (14). The top surface of the positioning post (8) is perpendicularly inserted through a countersunk hole (19). An external threaded block (21) is movably connected inside the countersunk hole (19). The external threaded block (21) is movably connected to the top surface of the second electric conductive block (12).

5. The tap connection structure of a dry-type transformer according to claim 4, characterized in that: A smooth bolt (9) is movably connected inside the countersunk hole (19). A spring (18) is sleeved on the outer edge of the smooth bolt (9). The spring (18) is located inside the countersunk hole (19). A receiving groove (20) communicating with the countersunk hole (19) is opened axially on the bottom surface of the positioning post (8). The smooth bolt (9) passes through the receiving groove (20) and is vertically fixed on the top surface of the external threaded block (21). A threaded groove (22) is opened axially on the top surface of the conductive block (12). The external threaded block (21) is threadedly connected in the threaded groove (22).

6. The tap connection structure of a dry-type transformer according to claim 1, characterized in that: The top surface of the conductive ring (14) is axially permeated with multiple equally spaced annularly distributed through holes (24), and a conductive post (25) is movably connected in each of the through holes (24). Each conductive post (25) is vertically fixed to the top surface of the second conductive block (12). The bottom surface of the first conductive block (11) is axially opened with multiple equally spaced annularly distributed positioning grooves (23), and a conductive post (25) is movably inserted in each of the positioning grooves (23).

7. The tap connection structure of a dry-type transformer according to claim 5, characterized in that: The positioning post (8), the side plate (7), and the smooth rod bolt (9) are all made of insulating material.

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