Novel epoxy resin pouring dry-type transformer
By designing the air guide mechanism in a dry transformer, using vertical poles, connecting plates, rubber strips, rotating shafts, first thermal conduction plates and second thermal conduction plates, the guidance of the fan cold air is optimized, and the problem that the fan cold air is not easy to fully act on the transformer and the cold air is more loss, achieving efficient effect and loss reduction of the cold air.
Patent Information
- Application Number
- CN202421877382.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The fan of the dry transformer is located below it, and the air outlet of the fan faces to the upper end of the dry transformer, making it difficult for the cold air to act completely on the transformer, and the cold air is more loss.
A new type of epoxy resin cast dry-type transformer is designed. By providing a vertical rod, a connecting plate, a rubber strip, a rotating shaft, a first thermal conduction plate and a second thermal conduction plate, the air guide mechanism is used to enable the cold air blown by the fan to act on the high-voltage coil to a great extent, reducing the cold air loss.
By optimizing the cold air guidance of the fan, the cold air guide is acted on the high-voltage coil to a great extent, reducing the cold air loss generated by the fan and improving the cooling efficiency.
Smart Images
Figure CN222887820U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dry-type transformers, in particular to a new type of epoxy resin cast dry-type transformer. Background Technique
[0002] A dry-type transformer is a transformer that does not use oil or other liquids as an insulating medium. It mainly relies on solid insulating materials (such as epoxy resin, fiberglass, etc.) and air to achieve insulation and heat dissipation;
[0003] During the process of using an epoxy resin cast dry-type transformer, the dry-type transformer will generate more heat when working, and these heats will accumulate inside the working environment where the dry-type transformer is located. At this time, the dry-type transformer can be air-cooled by the fan of the dry-type transformer. However, the fan of the dry-type transformer is arranged below it, and the air outlet of the fan faces the upper end of the dry-type transformer. Therefore, the cold air generated by the fan is not easy to fully act on the dry-type transformer, and at the same time, the cold air generated by the fan has more losses. Therefore, a new type of epoxy resin cast dry-type transformer is proposed for the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a new type of epoxy resin cast dry-type transformer to solve the problems that the fan of the dry-type transformer is arranged below it, and the air outlet of the fan faces the upper end of the dry-type transformer, so that the cold air generated by the fan is not easy to fully act on the dry-type transformer, and at the same time, the cold air generated by the fan has more losses.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A new type of epoxy resin cast dry-type transformer, including cushion blocks, clamping parts, high-voltage coils and low-voltage coils. The outside of the cushion blocks is fixedly connected to the clamping parts. The inside of the clamping parts is fixedly connected with an iron core. The outside of the iron core is provided with a low-voltage coil. The outside of the low-voltage coil is provided with a high-voltage coil. The outside of the cushion blocks is fixedly connected with a fan. The outside of the fan is fixedly connected with a frame. The frame includes vertical rods. The outside of the vertical rods is fixedly connected with fixing plates. The outside of the fixing plates is fixedly connected with side baffles. The outside of the vertical rods is fixedly connected with rubber rods. The outside of the vertical rods is fixedly connected with connecting plates. The outside of the vertical rods is fixedly connected with rubber strips. The inside of the vertical rods is rotatably connected with a wind guiding mechanism. The wind guiding mechanism includes a rotating shaft. The outside of the rotating shaft is fixedly connected with a first heat conducting plate. The outside of the rotating shaft is fixedly connected with a second heat conducting plate. The inside of the second heat conducting plate is provided with ventilation holes.
[0007] As a further optimized content of the present utility model, among them: the number of the vertical rods is four in total. The vertical rods are symmetrically arranged in pairs on the outside of the fan. The two vertical rods on the same side of the fan are fixedly connected through the fixing plates and the connecting plates.
[0008] As a further optimized content of the present utility model, wherein: the side baffle on the outer side of the vertical rod is inclined 15° away from the fan, and the first heat conducting plate and the second heat conducting plate are arranged between the two side baffles.
[0009] As a further optimized content of the present utility model, wherein: the number of the rotating shafts is the sum of the numbers of the first heat conducting plate and the second heat conducting plate, and the number of the rotating shafts is one more than the number of the second heat conducting plates.
[0010] As a further optimized content of the present utility model, wherein: the first heat conducting plate and the second heat conducting plate are of the same size, the first heat conducting plate is arranged above the second heat conducting plate, and a plurality of ventilation holes are evenly formed in the inner side of the second heat conducting plate.
[0011] As a further optimized content of the present utility model, wherein: the number of the connecting plates is the same as the number of the second heat conducting plates, both the connecting plates and the fixing plates are in close contact with the rotating shafts, and the rubber strips arranged below the connecting plates keep a fixed distance from the rotating shafts.
[0012] As a further optimized content of the present utility model, wherein: one side of the rubber strip close to the second heat conducting plate is an inclined surface, and the rubber rod is arranged above the first heat conducting plate.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] In the present utility model, through the vertical rod, the connecting plate, the rubber strip, the rotating shaft, the first heat conducting plate and the second heat conducting plate arranged, when the epoxy resin cast dry-type transformer is in use and the fan starts to act cold air on the outer side of the high-voltage coil, the air of the fan can blow the second heat conducting plate to rotate upward with the axis of the rotating shaft as the center, and the rubber strip restricts the second heat conducting plate. In this way, the inclined first heat conducting plate and the second heat conducting plate can guide the cold air blown out by the fan to act on the high-voltage coil to a great extent, reducing the problem of cold air loss generated by the fan. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is of the present utility model Figure 1 is a schematic diagram of the structure at A in
[0017] Figure 3 is a schematic diagram of the structure of the second heat conducting plate of the present utility model;
[0018] Figure 4 is of the present utility model Figure 3 is a schematic diagram of the structure at B in
[0019] Figure 5 This is a schematic cross-sectional structure diagram of the fixing plate of the present utility model.
[0020] In the figure: 1, spacer block; 2, clamping piece; 3, high-voltage coil; 4, low-voltage coil; 5, iron core; 6, fan; 7, frame; 71, vertical rod; 72, fixing plate; 73, side baffle; 74, rubber rod; 75, connecting plate; 76, rubber strip; 77, air guiding mechanism; 771, rotating shaft; 772, first heat conducting plate; 773, second heat conducting plate; 774, ventilation hole. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.
[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution:
[0024] A new type of epoxy resin cast dry-type transformer includes a spacer block 1, a clamping piece 2, a high-voltage coil 3, and a low-voltage coil 4. The outside of the spacer block 1 is fixedly connected to the clamping piece 2. The inside of the clamping piece 2 is fixedly connected with an iron core 5. The outside of the iron core 5 is provided with a low-voltage coil 4. The outside of the low-voltage coil 4 is provided with a high-voltage coil 3. The outside of the spacer block 1 is fixedly connected with a fan 6. The outside of the fan 6 is fixedly connected with a frame 7. The frame 7 includes a vertical rod 71. The outside of the vertical rod 71 is fixedly connected with a fixing plate 72. The outside of the fixing plate 72 is fixedly connected with a side baffle 73. The outside of the vertical rod 71 is fixedly connected with a rubber rod 74. The outside of the vertical rod 71 is fixedly connected with a connecting plate 75. The outside of the vertical rod 71 is fixedly connected with a rubber strip 76. The inside of the vertical rod 71 is rotatably connected with an air guiding mechanism 77. The air guiding mechanism 77 includes a rotating shaft 771. The outside of the rotating shaft 771 is fixedly connected with a first heat conducting plate 772. The outside of the rotating shaft 771 is fixedly connected with a second heat conducting plate 773. The inside of the second heat conducting plate 773 is provided with a ventilation hole 774.
[0025] As a further implementation of this solution, there are a total of four vertical rods 71. The vertical rods 71 are symmetrically arranged in pairs on the outside of the fan 6. The two vertical rods 71 on the same side of the fan 6 are fixedly connected by a fixing plate 72 and a connecting plate 75, which facilitates the support of the first heat conduction plate 772 and the second heat conduction plate 773;
[0026] As a further implementation of this solution, the side baffle 73 on the outside of the vertical rod 71 is inclined 15° away from the fan 6. The first heat conduction plate 772 and the second heat conduction plate 773 are arranged between the two side baffles 73, which facilitates the cold air generated by the fan 6 to act on the dry-type transformer body to a great extent;
[0027] As a further implementation of this solution, the number of the rotating shafts 771 is the sum of the numbers of the first heat conduction plate 772 and the second heat conduction plate 773. The number of the rotating shafts 771 is one more than the number of the second heat conduction plates 773, which facilitates the rotation of the first heat conduction plate 772 and the second heat conduction plate 773 in the vertical rod 71;
[0028] As a further implementation of this solution, the first heat conduction plate 772 and the second heat conduction plate 773 are of the same size. The first heat conduction plate 772 is arranged above the second heat conduction plate 773. A number of ventilation holes 774 are evenly arranged on the inner side of the second heat conduction plate 773, which facilitates the cold air generated by the fan 6 to blow the second heat conduction plate 773 and the first heat conduction plate 772 to rotate step by step;
[0029] As a further implementation of this solution, the number of the connecting plates 75 is the same as the number of the second heat conduction plates 773. The connecting plates 75 and the fixing plates 72 are both in close contact with the rotating shafts 771. The rubber strips 76 arranged below the connecting plates 75 maintain a fixed distance from the rotating shafts 771, which can limit the rotation angles of the first heat conduction plate 772 and the second heat conduction plate 773;
[0030] As a further implementation of this solution, one side of the rubber strip 76 close to the second heat conduction plate 773 is an inclined surface. The rubber rod 74 is arranged above the first heat conduction plate 772, which can prevent the rotation angles of the first heat conduction plate 772 and the second heat conduction plate 773 from exceeding 90°.
[0031] Workflow: During use, the device is powered on by an external power supply. When using the epoxy resin cast dry-type transformer and using the fan 6 to cool the epoxy resin cast dry-type transformer body by air cooling, the cold air generated by the fan 6 can blow the first heat conduction plate 772 above it to rotate upward with the axis of the rotating shaft 771 as the center. The second heat conduction plate 773 closer to the fan 6 can rotate closely against the fixed plate 72 until the second heat conduction plate 773 closer to the fan 6 is closely attached to the rubber strip 76 fixedly connected to the connecting plate 75. The rubber strip 76 can dampen the acting force of the sudden rotation of the second heat conduction plate 773, and the rubber strip 76 with an inclined surface on one side can ensure that the second heat conduction plate 773 rotates to a certain maximum inclination angle, so that part of the cold air can act on the main body of the dry-type transformer along the inclined surface of the second heat conduction plate 773, and the remaining part of the cold air can pass through the ventilation holes 774 inside the second heat conduction plate 773 from bottom to top and act on the second heat conduction plate 773 above, so that the cold air blown by the fan 6 acts on the dry-type transformer at an inclined angle to a great extent. After the cold air generated by the fan 6 acts on the first heat conduction plate 772 at the uppermost side of the vertical rod 71, since the first heat conduction plate 772 is a solid flat plate, after being pushed by the cold air of the fan 6, the first heat conduction plate 772 rotates with the axis of the rotating shaft 771 as the center, and the first heat conduction plate 772 can be restricted by the rubber rod 74 fixedly connected to the vertical rod 71 to prevent the first heat conduction plate 772 from rotating too much due to the large rotation angle and being unable to rotate in the reverse direction by its own weight. After the fan 6 stops working, the first heat conduction plate 772 and the second heat conduction plate 773 can rotate in the reverse direction with the axis of the rotating shaft 771 as the center. Then, under the restrictive action of the fixed plate 72 and the connecting plate 75, the first heat conduction plate 772 and the second heat conduction plate 773 can be in a parallel state with the horizontal plane, so that the second heat conduction plate 773 can rotate at any time under the action of the fan 6, and the solid first heat conduction plate 772 can prevent dust from accumulating at the air outlet position of the fan 6. This device can greatly guide the cold air blown by the fan 6 to act on the high-voltage coil 3 and reduce the problem of cold air loss generated by the fan 6.
[0032] 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 principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new epoxy resin cast dry-type transformer, characterized in that: The invention comprises a cushion block (1), a clamp (2), a high-voltage coil (3) and a low-voltage coil (4), and is characterized in that: the cushion block (1) is fixedly connected to the clamp (2) on the outside, the clamp (2) is fixedly connected to an iron core (5) on the inside, the iron core (5) is arranged on the outside of the low-voltage coil (4), the high-voltage coil (3) is arranged on the outside of the low-voltage coil (4), the cushion block (1) is fixedly connected to a fan (6) on the outside, the fan (6) is fixedly connected to a frame (7) on the outside, the frame (7) comprises a vertical pole (71), the vertical pole (71) is fixedly connected to a fixing plate (72) on the outside, the fixing plate (72) is fixedly connected to the outside A side baffle (73) is fixedly connected to the side of the vertical rod (71); a rubber rod (74) is fixedly connected to the outside of the vertical rod (71); a connecting plate (75) is fixedly connected to the outside of the vertical rod (71); a rubber strip (76) is fixedly connected to the outside of the vertical rod (71); an air guide mechanism (77) is rotatably connected to the inside of the vertical rod (71); the air guide mechanism (77) comprises a rotating shaft (771); a first heat conducting plate (772) is fixedly connected to the outside of the rotating shaft (771); a second heat conducting plate (773) is fixedly connected to the outside of the rotating shaft (771); and a vent hole (774) is provided on the inside of the second heat conducting plate (773).
2. A novel epoxy resin cast dry-type transformer according to claim 1, characterized in that: There are four vertical poles (71) in total. The vertical poles (71) are symmetrically arranged in groups of two on the outside of the fan (6). The two vertical poles (71) on the same side of the fan (6) are fixedly connected via a fixing plate (72) and a connecting plate (75).
3. A novel epoxy resin cast dry-type transformer according to claim 1, characterized in that: The side baffle (73) outside the vertical rod (71) is inclined at 15 degrees in a direction away from the fan (6), and the first heat conducting plate (772) and the second heat conducting plate (773) are arranged between the two side baffles (73).
4. A novel epoxy resin cast dry-type transformer according to claim 1, characterized in that: The number of the rotating shafts (771) is the sum of the number of the first heat conducting plates (772) and the number of the second heat conducting plates (773), and the number of the rotating shafts (771) is one more than the number of the second heat conducting plates (773).
5. The novel epoxy resin cast dry-type transformer according to claim 1 is characterized in that: The first heat conducting plate (772) and the second heat conducting plate (773) are of the same size; the first heat conducting plate (772) is arranged on the upper end of the second heat conducting plate (773); and a plurality of ventilation holes (774) are evenly arranged on the inner side of the second heat conducting plate (773).
6. A novel epoxy resin cast dry-type transformer according to claim 1, characterized in that: The number of the connecting plates (75) is the same as the number of the second heat conducting plates (773); the connecting plates (75) and the fixing plates (72) are both in close contact with the rotating shaft (771); and the rubber strip (76) arranged below the connecting plates (75) maintains a fixed distance from the rotating shaft (771).
7. The novel epoxy resin cast dry-type transformer according to claim 1 is characterized in that: The side of the rubber strip (76) close to the second heat conducting plate (773) is an inclined surface, and the rubber rod (74) is arranged on the upper side of the first heat conducting plate (772).