Wire outlet device for transformer body

Abstract

The utility model relates to the field of transformer devices, in particular to an outgoing line device for a transformer body, which comprises coil outgoing lines and a convergence line, the lower ends of the two coil outgoing lines are connected with the upper end of the convergence line, the lower end of the convergence line is fixedly connected with a crimping joint, and the two coil outgoing lines and the convergence line are combined to form a Y shape; the gap supporting mechanism is arranged on the surfaces of the two coil outgoing lines in a sleeving mode, and the surface of the gap supporting mechanism extends to the exterior of the convergence line; according to the wire outlet device for the transformer body, under the action of the gap supporting mechanism, the wire outlet device for the transformer body can effectively utilize the direct space between coils, so that the insulating property of the wire outlet position is improved, the electric field distribution is improved, the effect of fixing a winding outlet wire is achieved, the risks of partial discharge and breakdown are reduced, and the service life of the transformer body is prolonged. The lead is not easy to loosen during connection, and stable operation of the transformer is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of transformer devices, and in particular to a lead-out device for a transformer body. Background Technology

[0002] The outgoing line device used in the transformer body is an important component of the transformer. Its main function is to lead the coil lead-out ends from the oil tank and ensure good insulation between the lead-out leads and the oil tank. In order to ensure the normal operation of the outgoing line device and extend its service life, it is necessary to perform regular maintenance and inspection. This mainly includes checking whether the appearance of the insulating bushing is intact, without cracks or discharge phenomena; checking whether the connection between the lead-out leads and the bushing is firm and reliable; and regularly cleaning the dust and debris on the surface of the outgoing line device.

[0003] Given the high voltage level at the transformer's start-up end, traditional start-up line connections rely solely on fasteners, which cannot guarantee insulation distance and thus easily lead to partial discharge or even breakdown. Furthermore, bent conductors result in uneven electric field distribution, and conductor connections are prone to loosening, failing to meet the requirements for stable transformer operation.

[0004] Therefore, a transformer body outgoing line device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a transformer body output device to solve the above problems, which improves the problem that bent wires cause uneven electric field distribution and easy loosening of wire connections, thus failing to meet the problem of stable operation of transformers.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a transformer body lead-out device, comprising: coil leads and a merging line, the lower ends of the two coil leads being connected to the upper end of the merging line, the lower end of the merging line being fixedly connected to a crimping connector, the two coil leads and the merging line being combined to form a Y-shape; a gap support mechanism, the gap support mechanism being sleeved on the surface of the two coil leads, the surface of the gap support mechanism extending to the outside of the merging line; wherein, the gap support mechanism includes a first Y-shaped corner ring sleeved on the outside of the merging line, the surface of the first Y-shaped corner ring extending to the outside of the coil leads, two outer support components being disposed inside the first Y-shaped corner ring, the two outer support components being sleeved on the outside of the coil leads, and an inner support component being disposed inside the outer support components.

[0007] Preferably, the external support assembly includes two sets of multiple external support strips respectively sleeved outside the two coil leads. Supporting inclined plates are fixedly connected to the surfaces of the multiple external support strips near the surface of the first Y-shaped corner ring, and the supporting inclined plates are fixedly connected to the inner wall of the first Y-shaped corner ring. The multiple external support strips are spirally arranged to cooperate with the supporting arc rod to form a good supporting effect.

[0008] Preferably, the inner support assembly includes a second Y-shaped corner ring sleeved on the two coil lead-out surfaces. The surface of the second Y-shaped corner ring extends to the outside of the merging line. The second Y-shaped corner ring contacts the surface of the outer support strip. Multiple inner support strips are provided on the inner side of the second Y-shaped corner ring. The second Y-shaped corner ring is wrapped with an insulating cylinder.

[0009] Preferably, the plurality of outer support bars are evenly distributed in a ring shape along the surface of the coil lead-out wire, and the outer support bars are arranged in a spiral ring shape.

[0010] Preferably, one side of the outer support bar is fixedly connected to a plurality of support arc rods, and the other end of the support arc rods is fixedly connected to the surface of the adjacent outer support bar.

[0011] Preferably, a connecting ring is fixedly connected to the end of the inner support bar, and the inner support bar is in contact with the surface of the coil lead.

[0012] Preferably, the plurality of inner support strips are evenly distributed in a ring shape along the surface of the coil lead-out wire, and the inner support strips are wavy.

[0013] The beneficial effects of this utility model are:

[0014] 1. The above-mentioned transformer body outgoing line device, under the action of the gap support mechanism, enables the transformer body outgoing line device to effectively utilize the space between the coils, improve the insulation performance at the outgoing line, improve the electric field distribution, and play the role of fixing the winding outgoing line, reducing the risk of partial discharge and breakdown, and making it less likely for the wire connection to loosen, thus ensuring the stable operation of the transformer.

[0015] 2. By setting up external and internal support components, the internal and external support bars, along with the spiral arrangement of multiple external support bars to support the arc rod, can provide good support for the second Y-shaped corner ring. This ensures a stable gap between the second Y-shaped corner ring and the coil output surface, thus guaranteeing the stable operation of the transformer. Attached Figure Description

[0016] Figure 1 A schematic diagram of a transformer body outgoing line device;

[0017] Figure 2 A cross-sectional view of a transformer body outgoing line device;

[0018] Figure 3 This is a connection diagram of the present invention;

[0019] Figure 4 This is a connection diagram of the present invention.

[0020] In the diagram: 1. Coil lead; 2. Connecting wire; 21. Crimping connector; 3. Gap support mechanism; 31. First Y-shaped corner ring; 32. Outer support assembly; 321. Outer support bar; 322. Support arc rod; 323. Support inclined plate; 33. Inner support assembly; 331. Second Y-shaped corner ring; 332. Inner support bar; 333. Connecting ring. Detailed Implementation

[0021] 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.

[0022] In practical implementation: such as Figure 1-4 As shown, a transformer body lead-out device includes: coil lead-out 1 and merging line 2, the lower ends of the two coil lead-out 1 are connected to the upper ends of the merging line 2, and the lower end of the merging line 2 is fixedly connected to a crimping connector 21, the two coil lead-out 1 and the merging line 2 are combined to form a Y-shape; a gap support mechanism 3, the gap support mechanism 3 is sleeved on the surface of the two coil lead-out 1, and the surface of the gap support mechanism 3 extends to the outside of the merging line 2; wherein, the gap support mechanism 3 includes a first Y-shaped corner ring 31 sleeved on the outside of the merging line 2, the surface of the first Y-shaped corner ring 31 extends to the outside of the coil lead-out 1, and two outer support components 32 are provided inside the first Y-shaped corner ring 31, the two outer support components 32 are sleeved on the outside of the coil lead-out 1, and an inner support component 33 is provided inside the outer support components 32;

[0023] like Figures 1-4 As shown, the outer support assembly 32 includes two sets of multiple outer support strips 321 respectively sleeved on the outside of the two coil outlets 1. The multiple outer support strips 321 are fixedly connected to the surface of the first Y-shaped corner ring 31 with a support inclined plate 323. The support inclined plate 323 is fixedly connected to the inner wall of the first Y-shaped corner ring 31. The inner support assembly 33 includes a second Y-shaped corner ring 331 sleeved on the surface of the two coil outlets 1. The surface of the second Y-shaped corner ring 331 extends to the outside of the confluence line 2. The second Y-shaped corner ring 331 is in contact with the surface of the outer support strips 321. Multiple inner support strips 332 are provided on the inner side of the second Y-shaped corner ring 331.

[0024] The device, through the combination of a first Y-shaped corner ring 31 and a second Y-shaped corner ring 331 with an outer support strip 321 and an inner support strip 332, serves to separate the oil gap and provide support, preventing the winding leads from shifting during operation. The Y-shaped corner rings not only improve insulation performance but also improve the electric field distribution, making the electric field distribution more uniform, reducing local electric field concentration, and lowering the risk of partial discharge and insulation breakdown. The insulating cylinder increases the insulation distance and provides a certain degree of support.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, multiple outer support bars 321 are evenly distributed in a ring shape along the surface of the coil outlet 1, and the outer support bars 321 are arranged in a spiral ring shape; multiple support arc rods 322 are fixedly connected to one side of the outer support bars 321, and the other end of the support arc rods 322 is fixedly connected to the surface of the adjacent outer support bars 321; a connecting ring 333 is fixedly connected to the end of the inner support bar 332, and the inner support bar 332 is in contact with the surface of the coil outlet 1; multiple inner support bars 332 are evenly distributed in a ring shape along the surface of the coil outlet 1, and the inner support bars 332 are wavy.

[0026] The device provides good support for the second Y-shaped corner ring 331 by spirally cooperating with the support arc rod 322 using multiple outer support bars 321. Under the action of the inner support bar 332, a good gap is formed between the second Y-shaped corner ring 331 and the coil lead 1, ensuring a stable gap between the surface of the second Y-shaped corner ring 331 and the coil lead 1, reducing local electric field concentration, and lowering the risk of partial discharge and insulation breakdown. The insulating cylinder increases the insulation distance and also provides a certain support.

[0027] In use, the two coil outlet wires 1 are connected together using a crimp connector 21; then, inner support strips 332 are fixed circumferentially at the outlets of the two coil outlet wires 1 respectively; a second Y-shaped corner ring 331 is then installed on the outer side of the inner support strip 332, and the upper and lower parts of the second Y-shaped corner ring 331 are firmly glued together; then, an insulating tube is wrapped around the second Y-shaped corner ring 331, and an outer support strip 321 is fixed circumferentially; a first Y-shaped corner ring 31 is then installed on the outer support strip 321, and the first Y-shaped corner ring 31 is then... The upper and lower parts are firmly bonded together. The device uses a first Y-shaped corner ring 31 and a second Y-shaped corner ring 331 in conjunction with an outer support strip 321 and an inner support strip 332. The multiple outer support strips 321 are arranged in a spiral shape to support the arc rod 322, which will provide good support for the second Y-shaped corner ring 331. Under the action of the inner support strip 332, a good gap will be formed between the second Y-shaped corner ring 331 and the coil lead 1, ensuring that there is a stable gap between the surface of the second Y-shaped corner ring 331 and the coil lead 1.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A transformer body outgoing line device, characterized in that, include: The coil leads (1) and the connecting line (2) are connected at their lower ends to the upper end of the connecting line (2). The lower end of the connecting line (2) is fixedly connected to a crimp connector (21). The two coil leads (1) and the connecting line (2) are combined to form a Y-shape. A gap support mechanism (3) is sleeved on the surface of the two coil leads (1), and the surface of the gap support mechanism (3) extends to the outside of the merging line (2); The gap support mechanism (3) includes a first Y-shaped corner ring (31) sleeved on the outside of the confluence line (2). The surface of the first Y-shaped corner ring (31) extends to the outside of the coil outlet (1). The inside of the first Y-shaped corner ring (31) is provided with two external support components (32). The two external support components (32) are sleeved on the outside of the coil outlet (1). The inside of the external support components (32) is provided with an internal support component (33).

2. The transformer body outgoing line device according to claim 1, characterized in that: The outer support assembly (32) includes two sets of multiple outer support strips (321) respectively sleeved on the outside of the two coil leads (1). The multiple outer support strips (321) are fixedly connected to a support inclined plate (323) near the surface of the first Y-shaped corner ring (31). The support inclined plate (323) is fixedly connected to the inner wall of the first Y-shaped corner ring (31).

3. The transformer body outgoing line device according to claim 2, characterized in that: The inner support assembly (33) includes a second Y-shaped corner ring (331) sleeved on the surface of the two coil leads (1). The surface of the second Y-shaped corner ring (331) extends to the outside of the confluence line (2). The second Y-shaped corner ring (331) contacts the surface of the outer support strip (321). A plurality of inner support strips (332) are provided on the inner side of the second Y-shaped corner ring (331).

4. A transformer body outgoing line device according to claim 2, characterized in that: Multiple outer support bars (321) are evenly distributed in a ring shape along the surface of the coil lead (1), and the outer support bars (321) are arranged in a spiral ring shape.

5. A transformer body outgoing line device according to claim 4, characterized in that: One side of the outer support bar (321) is fixedly connected to a plurality of support arc rods (322), and the other end of the support arc rods (322) is fixedly connected to the surface of the adjacent outer support bar (321).

6. A transformer body outgoing line device according to claim 3, characterized in that: The end of the inner support bar (332) is fixedly connected to a connecting ring (333), and the inner support bar (332) is in contact with the surface of the coil lead (1).

7. A transformer body outgoing line device according to claim 6, characterized in that: Multiple inner support bars (332) are evenly distributed in a ring shape along the surface of the coil lead (1), and the inner support bars (332) are wavy.

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