Power transformer with insulation protection structure

Abstract

The utility model discloses a kind of electric power transformers with insulation protective structure, including transformer body, the transformer body output is equipped with insulation protective sleeve, the insulation protective sleeve includes sleeve body, the side above of opening and closing gap is equipped with first skirt, the side above of opening and closing gap is equipped with second skirt, the middle part of mutually close side of first skirt and second skirt is equipped with mounting groove, sealing strip is equipped in the mounting groove, the first skirt and the upper end of second skirt are equipped with the first through-hole of multiple equidistance arrangement, second through-hole matched with first through-hole is opened in the sealing strip, the first through-hole and the second through-hole inside are inserted with connecting component. This kind of structure is simple, easy to install, sealing effect is good, with good insulation effect, can effectively avoid dust and rainwater easily from gap into insulation protective cover inside, guarantee the protection effect and insulation performance of insulation shield.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, and in particular to a power transformer with an insulating protection structure. Background Technology

[0002] A power transformer is a static electrical device used to convert an alternating current (AC) voltage of a certain value into one or more different voltages at the same frequency. It is a static device with two or more windings that, in order to transmit electrical energy, converts the AC voltage and current of one system into the voltage and current of another system through electromagnetic induction at the same frequency. According to the requirements of relevant national departments, transformer insulation covers have gradually become standard equipment for transformer facilities, and more and more transformers are equipped with insulation covers. Existing insulation covers match the shape of the equipment at the connection points, wrapping and fastening them. The fastening points are positioned by evenly distributed bolt groups. Inevitably, gaps will appear between the bolt groups. As the material ages, these gaps gradually widen, allowing dust and rainwater to easily enter the interior of the insulation cover, leading to a deterioration in protective effect and insulation performance. Therefore, we propose a power transformer with an insulation protection structure. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a power transformer with an insulating protective structure. This utility model solves the problem that existing insulating protective covers match the shape of the equipment at the connection point, wrapping and fastening the connection point, and using evenly distributed bolt groups for positioning. However, gaps inevitably appear at the bolt group fastening points, and as the material ages, these gaps gradually widen, allowing dust and rainwater to easily enter the insulating protective cover, leading to a deterioration in protective effect and insulation performance.

[0004] This utility model discloses a power transformer with an insulating protective structure, comprising a transformer body, an insulating protective sleeve at the output end of the transformer body, the insulating protective sleeve comprising a sleeve body, an opening and closing slit in the middle of the upper end of the sleeve body, a first skirt on one side above the opening and closing slit, a second skirt on the other side above the opening and closing slit, an installation groove in the middle of the side of the first skirt and the second skirt that are close to each other, a sealing strip in the installation groove, a plurality of first through holes arranged at equal intervals on the upper end of the first skirt and the second skirt, a second through hole matching the first through hole on the sealing strip, and a connecting component inserted into the first through hole and the second through hole.

[0005] Preferably, the connecting component includes an end cap, one side of which is fixedly connected to a fixing block, and the fixing block has connecting blocks at both ends on the side away from the end cap, and the connecting block is fixedly connected to a limiting block on the side away from the fixing block.

[0006] Preferably, the end cap, fixing block, connecting block, and limiting block are an integral structure.

[0007] Preferably, the cross-section of the limiting block is trapezoidal.

[0008] Preferably, the upper part of the second skirt is fixedly connected to the protective plate.

[0009] Preferably, a plurality of positioning blocks are equidistantly arranged below the protective plate near the first skirt edge, and the first skirt edge is provided with positioning holes that match the positioning blocks.

[0010] Compared with related technologies, this utility model has the following beneficial effects:

[0011] This utility model provides a power transformer with an insulating protective structure. An insulating protective sleeve can be fitted onto the outside of the transformer body's output end, thereby providing insulation protection for the transformer body's output end. A sealing strip is located inside the mounting groove between the first and second skirts, thus sealing the contact surface between the first and second skirts. A connecting component is inserted into the first and second through holes, allowing the first skirt, sealing strip, and second skirt to fit tightly together. A protective plate protects the upper ends of the first skirt, sealing strip, and second skirt, thus sealing them. This power transformer has a simple structure, is easy to install, has good sealing effect, and excellent insulation performance. It effectively prevents dust and rainwater from easily entering the insulating protective cover through gaps, ensuring the protective effect and insulation performance of the insulating cover. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the insulating protective sleeve structure of this utility model;

[0015] Figure 3 This is a cross-sectional view of the insulating protective sleeve of this utility model;

[0016] Figure 4 This is a schematic diagram of the connection component structure of this utility model;

[0017] Figure 5 This is a schematic diagram of part A of the present invention.

[0018] In the figure: 1. Transformer body; 2. Protective sleeve; 21. Sleeve body; 22. Opening and closing seam; 23. First skirt; 24. Second skirt; 25. Mounting groove; 26. Sealing strip; 27. First through hole; 28. Second through hole; 29. ​​Connecting assembly; 291. End cover; 292. Fixing block; 293. Connecting block; 294. Limiting block; 210. Protective plate; 211. Positioning block; 212. Positioning hole. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0020] like Figure 1-5 As shown, this utility model is a power transformer with an insulating protection structure, including a transformer body 1. An insulating protective sleeve 2 is provided at the output end of the transformer body 1. The insulating protective sleeve 2 can be sleeved onto the outside of the output end of the transformer body 1, thereby providing insulation protection for the output end of the transformer body 1. The insulating protective sleeve 2 includes a sleeve body 21. An opening and closing slit 22 is formed in the middle of the upper end of the sleeve body 21. A first skirt 23 is provided on one side above the opening and closing slit 22, and a second skirt 24 is provided on the other side above the opening and closing slit 22. An installation groove 25 is provided in the middle of the side where the first skirt 23 and the second skirt 24 are close to each other. A sealing strip 26 is provided in the installation groove 25. The upper ends of the first skirt 23 and the second skirt 24 are provided with a plurality of equidistant first through holes 27. The sealing strip 26 is provided with a second through hole 28 that matches the first through hole 27. A connecting component 29 is inserted into the first through hole 27 and the second through hole 28. The sealing strip 26 is located inside the mounting groove 25 between the first skirt 23 and the second skirt 24, so that the contact surface between the first skirt 23 and the second skirt 24 can be sealed by the sealing strip 26. At the same time, the connecting component 29 is inserted into the first through hole 27 and the second through hole 28, so that the first skirt 23, the sealing strip 26 and the second skirt 24 can fit tightly together by the connecting component 29.

[0021] The connecting component 29 includes an end cap 291. One side of the end cap 291 is fixedly connected to a fixing block 292. Both ends of the fixing block 292 away from the end cap 291 are provided with connecting blocks 293. The side of the connecting block 293 away from the fixing block 292 is fixedly connected to a limiting block 294. When the connecting component 29 is inserted into the first through hole 27 and the second through hole 28, the fixing block 292 is interference-fitted with the first through hole 27 and the second through hole 28, and the side of the limiting block 294 near the connecting block 293 abuts against the first skirt 23. Thus, through the mutual cooperation between the limiting block 294 and the end cap 291, the first skirt 23, the sealing strip 26 and the second skirt 24 can fit tightly together.

[0022] The end cap 291, fixing block 292, connecting block 293 and limiting block 294 are an integral structure.

[0023] The limiting block 294 has a trapezoidal cross-section, and the trapezoidal structure of the limiting block 294 makes it easier for the limiting block 294 to be inserted into the first through hole 27 and the second through hole 28.

[0024] The upper part of the second skirt 24 is fixedly connected to the protective plate 210, and the protective plate 210 can protect the first skirt 23, the sealing strip 26 and the upper part of the second skirt 24.

[0025] The protective plate 210 has multiple equidistant positioning blocks 211 arranged near the first skirt 23. The first skirt 23 has positioning holes 212 that match the positioning blocks 211. The positioning blocks 211 can be inserted into the positioning holes 212. Through the cooperation between the positioning blocks 211 and the positioning holes 212, the protective plate 210 can stably cover the first skirt 23, the sealing strip 26 and the second skirt 24.

[0026] Specifically, the insulating protective sleeve 2 can be fitted onto the outside of the output end of the transformer body 1, thereby providing insulation protection for the output end of the transformer body 1. The sealing strip 26 is located inside the mounting groove 25 between the first skirt 23 and the second skirt 24, thereby sealing the contact surface between the first skirt 23 and the second skirt 24. When the connecting component 29 is inserted into the first through hole 27 and the second through hole 28, the fixing block 292 is interference-fitted with the first through hole 27 and the second through hole 28, and the limiting block 294 is close to the connecting block 2. One side of 93 abuts against the first skirt 23, thereby allowing the first skirt 23, sealing strip 26 and second skirt 24 to fit tightly together through the mutual cooperation between the limiting block 294 and the end cap 291. The protective plate 210 can protect the upper ends of the first skirt 23, sealing strip 26 and second skirt 24. The positioning block 211 can be inserted into the positioning hole 212. Through the mutual cooperation between the positioning block 211 and the positioning hole 212, the protective plate 210 can stably cover the first skirt 23, sealing strip 26 and second skirt 24.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 power transformer with an insulation protection structure, comprising a transformer body (1), characterized in that, The transformer body (1) is provided with an insulating protective sleeve (2) at the output end. The insulating protective sleeve (2) includes a sleeve body (21). An opening and closing slit (22) is provided in the middle of the upper end of the sleeve body (21). A first skirt (23) is provided on one side above the opening and closing slit (22). A second skirt (24) is provided on the other side above the opening and closing slit (22). An installation groove (25) is provided in the middle of the side where the first skirt (23) and the second skirt (24) are close to each other. A sealing strip (26) is provided in the installation groove (25). A plurality of first through holes (27) are provided at the upper end of the first skirt (23) and the second skirt (24). A second through hole (28) matching the first through hole (27) is provided on the sealing strip (26). A connecting component (29) is inserted into the first through hole (27) and the second through hole (28).

2. The power transformer having an insulation shield structure according to claim 1, characterized in that, The connecting component (29) includes an end cap (291), one side of which is fixedly connected to a fixing block (292), and both ends of the fixing block (292) away from the end cap (291) are provided with connecting blocks (293), and the side of the connecting block (293) away from the fixing block (292) is fixedly connected to a limiting block (294).

3. A power transformer with an insulating protection structure according to claim 2, characterized in that, The end cap (291), fixing block (292), connecting block (293) and limiting block (294) are an integral structure.

4. A power transformer with an insulating protection structure according to claim 2, characterized in that, The limiting block (294) has a trapezoidal cross section.

5. A power transformer with an insulating protection structure according to claim 1, characterized in that, The second skirt edge (24) is fixedly connected to the protective plate (210) above.

6. A power transformer with an insulating protection structure according to claim 5, characterized in that, The protective plate (210) has multiple equidistant positioning blocks (211) arranged on the side of the first skirt (23) below it. The first skirt (23) has positioning holes (212) that match the positioning blocks (211).

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