Impact-resistant epoxy resin pouring dry-type transformer

Abstract

The utility model discloses an anti-impact epoxy resin pouring dry-type transformer, and relates to the technical field of transformers. The shock-resistant dry-type transformer comprises a dry-type transformer body, a shock-resistant assembly is arranged outside the dry-type transformer body, and a buffer mechanism is arranged on the shock-resistant assembly. The anti-impact assembly comprises a protective shell; according to the dry-type transformer, the dry-type transformer main body is hoisted into the protective inner shell, the protective outer shell and the protective inner shell protect the dry-type transformer main body when the dry-type transformer main body is impacted, the dry-type transformer main body is prevented from being damaged due to large impact, and therefore the service life of the dry-type transformer main body is prolonged; by arranging the buffer plate, the sliding groove, the sliding block, the connecting rod and the spring shock absorber, the spring shock absorber counteracts the horizontal sliding of the sliding block, and the dry-type transformer main body is quickly static through the sliding block, the connecting rod and the buffer plate, so that the buffer shock absorption of the dry-type transformer main body is conveniently realized, and the influence of the shock force on the dry-type transformer main body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to an impact-resistant epoxy resin cast dry-type transformer. Background Art

[0002] Epoxy resin cast dry-type transformer is a kind of transformer. Epoxy resin cast dry-type transformer uses epoxy resin as insulation material. High and low voltage windings are wound with copper strip (foil). Epoxy resin is cast and cured in vacuum to form a high-strength fiberglass structure. The insulation grades are F and H. Epoxy resin cast dry-type transformer has the characteristics of good electrical performance, strong lightning impact resistance, strong short-circuit resistance, small size and light weight. A temperature display controller can be installed to display and control the operating temperature of the transformer winding to ensure the normal service life of the transformer.

[0003] Although the epoxy resin cast dry-type transformer in the prior art has good impact resistance, it is exposed to the external environment after installation. If it encounters a collision, it will still affect the life of the transformer. At the same time, most of the installed transformers lack buffer and shock absorption design, and long-term vibration has a certain impact on the operation of the transformer. Utility Model Content

[0004] In order to solve the problem that epoxy resin cast dry-type transformers are easily damaged after impact and most epoxy resin cast dry-type transformers after installation lack buffering and shock absorption design; the purpose of the utility model is to provide an impact-resistant epoxy resin cast dry-type transformer.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an impact-resistant epoxy resin cast dry-type transformer, comprising a dry-type transformer body, an impact-resistant component is provided on the outside of the dry-type transformer body, and a buffer mechanism is provided on the impact-resistant component;

[0006] The impact-resistant assembly comprises a protective outer shell, a protective inner shell is fixedly mounted on the inner wall of the protective outer shell, the bottom of the dry-type transformer body is in movable contact with the bottom wall of the protective inner shell, a plurality of ventilation slots evenly distributed are provided on both sides of the protective outer shell and the protective inner shell, an end cover is detachably mounted on the upper surface of the protective outer shell, and a plurality of wiring harness holes evenly distributed are provided on the bottom walls of the protective outer shell and the protective inner shell.

[0007] Preferably, two mounting angle irons are fixedly connected to the other side of the protective shell, and a plurality of evenly distributed mounting holes are provided on the two mounting angle irons.

[0008] Preferably, the buffer mechanism includes a buffer plate, and the buffer plates are arranged in four. The side wall of the protective inner shell is provided with a plurality of evenly distributed slide grooves, and a slider is slidably installed at one end of the plurality of slide grooves, and a connecting rod is hingedly installed on one side of the slider, and one end of the connecting rod is hinged to one side of the buffer plate, and a spring shock absorber is fixedly installed at the other end of the slide groove, and the other end of the spring shock absorber is fixedly connected to one end of the slider.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, by hoisting the dry-type transformer body into the interior of the protective inner shell, when encountering an impact, the protective outer shell and the protective inner shell protect the dry-type transformer body, thereby preventing the dry-type transformer body from being damaged by a large impact, thereby increasing the service life of the dry-type transformer body;

[0011] 2. In the utility model, a buffer plate, a slide groove, a slider, a connecting rod and a spring shock absorber are provided. The spring shock absorber offsets the horizontal sliding of the slider, and the dry-type transformer body is quickly stopped by the slider, the connecting rod and the buffer plate, thereby conveniently realizing the buffering and shock absorption of the dry-type transformer body, thereby avoiding the influence of vibration force on the dry-type transformer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of an impact-resistant epoxy resin cast dry-type transformer.

[0014] Figure 2 It is a schematic diagram of the external structure of the protective shell of the utility model.

[0015] Figure 3 It is a schematic diagram of the cross section of the protective outer shell, the protective inner shell and the structure of the buffer mechanism of the utility model.

[0016] In the figure: 1. Dry-type transformer body; 2. Impact-resistant component; 21. Protective outer shell; 22. Protective inner shell; 23. Mounting angle iron; 24. Mounting hole; 25. Ventilation slot; 26. End cover; 261. Heat dissipation slot; 27. Assembly bolt; 271. Threaded hole; 28. Wiring hole; 29. ​​Elastic ring; 3. Buffer mechanism; 31. Buffer plate; 32. Protective pad; 33. Air vent; 34. Slide slot; 35. Slider; 36. Connecting rod; 37. Spring shock absorber. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example: Figure 1-3 As shown, the utility model provides an impact-resistant epoxy resin cast dry-type transformer, including a dry-type transformer main body 1, an impact-resistant component 2 is arranged outside the dry-type transformer main body 1, and a buffer mechanism 3 is arranged on the impact-resistant component 2. By arranging the impact-resistant component 2 outside the dry-type transformer main body 1, the impact-resistant component 2 can protect the dry-type transformer main body 1, avoid the dry-type transformer main body 1 from being damaged by impact, and improve the service life of the dry-type transformer main body 1. By arranging the buffer mechanism 3, when encountering horizontal vibration, the buffer mechanism 3 can buffer and reduce the vibration force, thereby avoiding the horizontal vibration force from affecting the dry-type transformer main body 1;

[0019] The impact-resistant component 2 includes a protective outer shell 21, a protective inner shell 22 is fixedly mounted on the inner wall of the protective outer shell 21, the bottom of the dry-type transformer body 1 is in movable contact with the bottom wall of the protective inner shell 22, a plurality of ventilation slots 25 are evenly distributed on both sides of the protective outer shell 21 and the protective inner shell 22, an end cover 26 is detachably mounted on the upper surface of the protective outer shell 21, and a plurality of wiring harness holes 28 are evenly distributed on the bottom walls of the protective outer shell 21 and the protective inner shell 22.

[0020] Two mounting angle irons 23 are fixedly connected to the other side of the protective housing 21. Both mounting angle irons 23 are provided with a number of evenly distributed mounting holes 24. By providing the mounting angle irons 23 and the mounting holes 24, it is convenient for operators to fix the protective housing 21 on the external platform.

[0021] The four corners of the end cover 26 are all threadedly installed with assembly bolts 27, and the four corners of the protective shell 21 are opened with threaded holes 271. One end of the assembly bolt 27 is threadedly connected to the inner wall of the threaded hole 271. By setting the assembly bolt 27 and the threaded hole 271, the installation and disassembly of the end cover 26 are facilitated.

[0022] Two heat dissipation grooves 261 are provided on the end cover 26 . By providing the heat dissipation grooves 261 , the hot air flow generated when the dry-type transformer body 1 is in operation can be discharged through the heat dissipation grooves 261 .

[0023] The inner walls of the plurality of harness holes 28 are fixedly mounted with elastic rings 29. By providing the elastic rings 29, when the harness of the dry-type transformer body 1 passes through the harness hole 28, during the buffering and shock absorbing process, the elastic rings 29 can protect the harness group of the dry-type transformer body 1 and prevent the harness group from being damaged.

[0024] The buffer mechanism 3 includes a buffer plate 31, and the buffer plates 31 are arranged in four. The side wall of the protective inner shell 22 is provided with a plurality of evenly distributed slide grooves 34. A slider 35 is slidably installed at one end of each of the slide grooves 34. A connecting rod 36 is hingedly installed at one side of the slider 35. One end of the connecting rod 36 is hinged to one side of the buffer plate 31. A spring shock absorber 37 is fixedly installed at the other end of the slide groove 34. The other end of the spring shock absorber 37 is fixedly connected to one end of the slider 35. By setting the buffer plate 31, the slide groove 34, and the slider 35, a spring shock absorber 37 is fixedly installed at the other end of the slide groove 34. Block 35, connecting rod 36 and spring shock absorber 37. When the dry-type transformer body 1 is hoisted inside the protective shell 21 and encounters a horizontal vibration force, the vibration of the dry-type transformer body 1 causes the slider 35 to slide horizontally along the inner wall of the slide groove 34 through the buffer plate 31 and the connecting rod 36. The spring shock absorber 37 can quickly offset the horizontal sliding of the slider 35 and make the slider 35 slide to the initial position. The slider 35 quickly stops the dry-type transformer body 1 through the connecting rod 36 and the buffer plate 31.

[0025] A protective pad 32 is fixedly installed on the other side of the four buffer plates 31. The side of the protective pad 32 away from the buffer plate 31 is in active contact with one side of the dry-type transformer body 1. By setting the protective pad 32, when the dry-type transformer body 1 is hoisted into the inside of the protective inner shell 22, the side of the dry-type transformer body 1 is in contact with the protective pad 32, and the protective pad 32 can prevent the dry-type transformer body 1 from being worn.

[0026] A number of evenly distributed air holes 33 are provided on the four buffer plates 31. By providing the air holes 33, the heat dissipation effect at the position between the dry-type transformer body 1 and the protective pad 32 can be improved to avoid heat accumulation.

[0027] When in use, the operator first fixes the protective housing 21 on the equipment platform through two mounting angle irons 23 and multiple mounting holes 24 in conjunction with the use of external mounting bolts;

[0028] Subsequently, the end cover 26 is opened by removing the four assembly bolts 27, and then the dry-type transformer body 1 is hoisted into the interior of the protective inner shell 22. At this time, the four sides of the dry-type transformer body 1 are in contact with the four protective pads 32. If an impact occurs, the protective outer shell 21 and the protective inner shell 22 protect the dry-type transformer body 1, thereby preventing the dry-type transformer body 1 from being damaged by a large impact, thereby increasing the service life of the dry-type transformer body 1.

[0029] When encountering a horizontal vibration force, the multiple spring shock absorbers 37 quickly offset the horizontal sliding of the multiple sliders 35 and make the multiple sliders 35 slide to the initial position. The multiple sliders 35 quickly stop the dry-type transformer body 1 through the multiple connecting rods 36 and the four buffer plates 31, thereby conveniently realizing the buffering and shock absorption of the dry-type transformer body 1, thereby avoiding the vibration force from affecting the dry-type transformer body 1.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An impact-resistant epoxy resin cast dry-type transformer, comprising a dry-type transformer body (1), characterized in that: An impact-resistant component (2) is provided on the outside of the dry-type transformer body (1), and a buffer mechanism (3) is provided on the impact-resistant component (2); The impact-resistant assembly (2) comprises a protective outer shell (21), an inner wall of the protective outer shell (21) is fixedly mounted with a protective inner shell (22), the bottom of the dry-type transformer body (1) is in movable contact with the bottom wall of the protective inner shell (22), both sides of the protective outer shell (21) and the protective inner shell (22) are provided with a plurality of ventilation slots (25) evenly distributed, an end cover (26) is detachably mounted on the upper surface of the protective outer shell (21), and the bottom walls of the protective outer shell (21) and the protective inner shell (22) are provided with a plurality of wiring harness holes (28) evenly distributed.

2. An impact-resistant epoxy resin cast dry-type transformer as claimed in claim 1, characterized in that: Two mounting angle irons (23) are fixedly connected to the other side of the protective housing (21), and a plurality of evenly distributed mounting holes (24) are provided on the two mounting angle irons (23).

3. The impact-resistant epoxy resin cast dry-type transformer according to claim 1, characterized in that: The four corners of the end cover (26) are all threadedly mounted with assembly bolts (27), the four corners of the protective housing (21) are all provided with threaded holes (271), and one end of the assembly bolt (27) is threadedly connected to the inner wall of the threaded hole (271).

4. The impact-resistant epoxy resin cast dry-type transformer according to claim 1, characterized in that: The end cover (26) is provided with two heat dissipation slots (261).

5. The impact-resistant epoxy resin cast dry-type transformer according to claim 1, characterized in that: An elastic ring (29) is fixedly mounted on the inner walls of a plurality of the harness holes (28).

6. The impact-resistant epoxy resin cast dry-type transformer according to claim 1, characterized in that: The buffer mechanism (3) comprises a buffer plate (31), wherein four buffer plates (31) are provided, and a side wall of the protective inner shell (22) is provided with a plurality of evenly distributed slide grooves (34), one end of each of the plurality of slide grooves (34) being slidably mounted with a slider (35), one side of the slider (35) being hingedly mounted with a connecting rod (36), one end of the connecting rod (36) being hingedly connected to one side of the buffer plate (31), and the other end of the slide groove (34) being fixedly mounted with a spring shock absorber (37), and the other end of the spring shock absorber (37) being fixedly connected to one end of the slider (35).

7. An impact-resistant epoxy resin cast dry-type transformer as claimed in claim 6, characterized in that: A protective pad (32) is fixedly mounted on the other side of each of the four buffer plates (31), and a side of the protective pad (32) away from the buffer plate (31) is in active contact with a side of the dry-type transformer body (1).

8. The impact-resistant epoxy resin cast dry-type transformer according to claim 6, characterized in that: The four buffer plates (31) are each provided with a plurality of evenly distributed air holes (33).

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