Rain-proof and snow-proof outdoor transformer

Abstract

The utility model relates to the technical field of transformers, in particular to a rain and snow prevention type outdoor transformer. The utility model provides a rain and snow prevention type outdoor transformer which comprises an oil tank filled with insulating oil, heat dissipation assemblies for conducting air cooling heat dissipation operation in an insulating oil external circulation mode are symmetrically arranged on the two sides of the oil tank in the length direction, and a high-voltage terminal and a low-voltage terminal are distributed on the two sides of the oil tank in the width direction. The exteriors of the high-voltage terminals and the low-voltage terminals are coated with box bodies which play a role in shielding wind and snow. According to the transformer, the box body and the heat dissipation assembly are designed, so that rain and snow can be shielded through the box body containing the high-voltage terminal and the low-voltage terminal, insulating oil external circulation heat dissipation operation of the transformer can be achieved through the heat dissipation assembly, and the problem that in the prior art, an outdoor transformer is inconvenient to use is solved. The high-voltage and low-voltage terminals are usually arranged at the top of the box cover and are lack of shielding measures, so that the joints between the high-voltage and low-voltage terminals and the power grid are easily rusted, and the conductive efficiency is reduced.

Description

Technical Field

[0001] This application relates to the technical field of transformers, and particularly to a rain and snow-proof outdoor transformer. Background Art

[0002] In transformers used outdoors, the arrangement and protection of high- and low-voltage terminals are one of the key factors to ensure the stable operation of the transformer; the transformers of the prior art usually arrange the high- and low-voltage terminals on the top of the tank cover and do not have sufficient shielding protection measures; this design is likely to cause erosion at the connection between the high- and low-voltage terminals and the power grid in rainy and snowy weather, resulting in problems such as rust, affecting the conduction efficiency, and even possibly causing equipment failures. Summary of the Utility Model

[0003] The problem to be solved by this application is that for existing outdoor transformers, the high- and low-voltage terminals are usually arranged on the top of the tank cover and lack shielding measures, resulting in the connection between the high- and low-voltage terminals and the power grid being easily corroded and the conduction efficiency being reduced.

[0004] To solve the above technical problems, this application provides a rain and snow-proof outdoor transformer, which includes a fuel tank filled with insulating oil. On both sides of the fuel tank in the length direction, heat dissipation components for air-cooling heat dissipation operation by means of external circulation of insulating oil are symmetrically arranged. The high-voltage terminal and the low-voltage terminal are distributed on both sides of the fuel tank in the width direction, and the outside of the high-voltage terminal and the low-voltage terminal are both covered with a box body that plays a role in shielding wind and snow.

[0005] Since the transformer of this application is designed with a box body and heat dissipation components, it can both shield rain and snow through the box body that houses the high- and low-voltage terminals, and can also achieve the external circulation heat dissipation operation of the insulating oil of the transformer through the heat dissipation components, solving the problem that for existing outdoor transformers, the high- and low-voltage terminals are usually arranged on the top of the tank cover and lack shielding measures, resulting in the connection between the high- and low-voltage terminals and the power grid being easily corroded and the conduction efficiency being reduced. Description of the Drawings

[0006] Figure 1 Schematic perspective view of the embodiment.

[0007] Figure 2 Schematic front view of the embodiment.

[0008] Figure 3 Schematic top view of the embodiment.

[0009] Figure 4 Schematic bottom view of the embodiment.

[0010] Figure 5 Schematic structure view of the heat dissipation component.

[0011] In the figure: 1. Box body; 2. Box cover; 3. Heat dissipation component; 4. Support feet; 5. Fuel tank; 6. Through hole; 7. Pipe body; 8. Fins; 9. Batten. Detailed implementation mode

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application. Embodiment

[0013] The present application relates to a rain and snow proof outdoor transformer. As Figures 1-5 shown, the transformer includes a fuel tank 5 filled with insulating oil. Support feet 4 for supporting are symmetrically arranged at the bottom of the fuel tank 5. A box cover 2 with a pressure relief valve is arranged at the top of the fuel tank 5. A winding connected to high and low voltage terminals and an iron core for electromagnetic conversion operation are arranged inside the fuel tank 5. Since a large amount of heat is generated when the iron core performs electromagnetic conversion, heat dissipation components 3 that perform air-cooled heat dissipation operation in the form of external circulation of insulating oil are symmetrically arranged on both sides in the length direction of the fuel tank 5. In order to prevent the high and low voltage terminals from being eroded by rain and snow or causing ionization interference with each other, the high voltage terminal and the low voltage terminal are distributed on both sides in the width direction of the fuel tank 5 to reduce the ionization interference between the two. Secondly, the outsides of the high voltage terminal and the low voltage terminal are both covered with a box body 1 that blocks wind and snow. A through hole 6 for connecting the high voltage terminal, the low voltage terminal to the external power grid is opened at the bottom of the box body 1, so that the connection between the high and low voltage terminals and the external power grid can be placed inside the box body 1. Since the through hole 6 faces vertically downward, rain and snow can be prevented from eroding into the box body 1. Among them, the box body 1 with a relatively large volume is used to accommodate the high voltage terminal, and the box body 1 with a relatively small volume is used to accommodate the low voltage terminal.

[0014] The heat dissipation component 3 includes a pipe body 7, fins 8, and a pressing strip 9. The number of pipe bodies 7 is two, symmetrically arranged on the side of the fuel tank 5. One pipe body 7 is used for insulating oil to flow from the box body 1 into the fins 8, and the other pipe body 7 is used for insulating oil to flow from the fins 8 into the box body 1, so that the insulating oil completes the external circulation cooling operation. Between the pipe bodies 7, a plurality of vertically arranged thin plate-shaped and hollow fin plates are evenly and spaced, so that the insulating oil can flow into the fin plates, thereby increasing the heat exchange area with the outside air, being able to more effectively reduce the temperature of the insulating oil, enabling the insulating oil to effectively cool and insulate the iron core, and at the same time being able to prevent the fuel tank 5 from deforming due to the heat absorption and expansion of the insulating oil. On the outside of the fins 8, there is also a pressing strip 9 that supports and limits it to prevent it from falling off or deforming. In order to achieve the full heat dissipation operation of the fins 8 and ensure its bearing strength, therefore, the ratio of the length, width, and thickness of the fins 8 is 440:115:1.

[0015] During use, by arranging the high-voltage terminal and the low-voltage terminal separately to avoid ionization interference between the two, and thanks to the arrangement of the box body 1, the connection between the high- and low-voltage terminals and the external power grid is placed inside the box body 1 protected from rain and snow. After the transformer generates heat absorbed by the insulating oil during operation, then the insulating oil will flow along the fuel tank 5 into the pipe body 7, then reach the fins 8, and then perform a heat exchange operation with the outside air in the fins 8, and then flow back into the fuel tank 5 through another pipe body 7, so that the insulating oil cools and insulates the iron core at an appropriate temperature.

[0016] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part depending on the context, the term "one or more" used in the text can be used to describe any feature, structure, or property in the sense of a single number, or can be used to describe a combination of features, structures, or properties in the sense of a plural number. Similarly, at least in part depending on the context, terms such as "a" or "the" can also be understood as conveying a singular usage or conveying a plural usage.

[0017] It should be easily understood that the terms "on...", "above...", and "over..." in this disclosure should be interpreted in the broadest manner, so that "on..." not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above..." or "over..." not only includes the meaning of "above or over something", but can also include the meaning of "above or over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0018] In addition, for ease of description, spatial relative terms may be used in this text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to other elements or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptors used in this text may be interpreted accordingly as well.

[0019] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A rain and snow proof outdoor transformer, comprising an oil tank filled with insulating oil, characterized in that: The heat dissipation components that use external circulation of insulating oil for air cooling are symmetrically arranged on both sides of the length direction of the oil tank. The high-voltage terminals and low-voltage terminals are distributed on both sides of the width direction of the oil tank. The outside of the high-voltage terminals and the low-voltage terminals are covered with a box body that serves to shield against wind and snow.

2. The rain and snow proof outdoor transformer according to claim 1, characterized in that: The bottom of the box is provided with through holes for connecting the high-voltage terminal, the low-voltage terminal and the external power grid.

3. The rain and snow proof outdoor transformer according to claim 1, characterized in that: The heat dissipation component includes a tube body and fins. There are two tube bodies, which are symmetrically arranged on the side of the oil tank. A plurality of fin plates are evenly and spaced apart between the tube bodies.

4. The rain and snow proof outdoor transformer according to claim 3, characterized in that: The heat dissipation component also includes a pressure strip, and the outer side of the fin is also arranged with a pressure strip to support and limit the fin to prevent it from falling off or deforming.

5. The rain and snow proof outdoor transformer according to claim 3, characterized in that: One of the pipe bodies is used for insulating oil to flow from the box body into the fins, and the other pipe body is used for insulating oil to flow from the fins into the box body.

6. The rain and snow proof outdoor transformer according to claim 3, characterized in that: The fin plate is a thin plate-like structure that is arranged vertically and is hollow inside.

7. The rain and snow proof outdoor transformer according to claim 3, characterized in that: The ratio of the length, width and thickness of the fin is 440:115:

1.

8. The rain and snow proof outdoor transformer according to claim 1, characterized in that: The bottom of the fuel tank is symmetrically arranged with supporting legs.

9. The rain and snow proof outdoor transformer according to claim 1, characterized in that: A tank cover with a pressure relief valve is arranged on the top of the fuel tank.

10. The rain and snow proof outdoor transformer according to claim 1, characterized in that: The inside of the oil tank is arranged with windings connected to the high and low voltage terminals and an iron core for performing electromagnetic conversion operations.

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