Water-cooled transformer

Abstract

The utility model provides a water-cooled transformer which comprises a water-cooled shell internally provided with a water-cooled pipeline and a transformer body, the water-cooled shell is sunken to form a containing cavity for containing the transformer body, and the water-cooled shell comprises a first shell body surrounding the containing cavity and a second shell body which is arranged in the containing cavity and extends into the transformer body; the water cooling pipeline comprises a first water way arranged in the first shell and surrounding the containing cavity and a second water way arranged in the second shell, the first water way is communicated with the second water way, and an external water source is communicated with the water cooling pipeline to cool the transformer body. The first water path and the second water path dissipate heat of the transformer body from inside to outside, and the first water path and the second water path are communicated to form a series pipeline, so that the temperature of the transformer body is effectively reduced, and the whole transformer has a good heat dissipation effect.

Description

Technical Field

[0001] The utility model relates to the technical field of power electronics, in particular to a water-cooled transformer. Background Art

[0002] Transformers, devices that use electromagnetic induction to change AC voltage, are widely used across various industries. Ambient temperature significantly impacts transformer operation. Excessively high transformer temperatures can pose multiple risks, primarily affecting transformer performance, safety, service life, and overall power system stability. For example, elevated temperatures can reduce the transformer's insulation resistance, weaken magnetic induction, and cause material aging, leading to increased fire risks. For these reasons, transformer temperatures should be closely monitored during operation, and necessary measures should be taken to reduce them, such as adding cooling devices and optimizing heat dissipation designs.

[0003] In existing designs, multiple water channel structures are usually required to be designed in the water-cooled shell of the transformer for heat dissipation. The water channel structure design is complex, prone to leakage, not conducive to assembly and has poor heat dissipation effect. Utility Model Content

[0004] In order to solve the problems of the water-cooled transformer in the prior art having a relatively complex water-cooling pipeline structure and poor heat dissipation effect, the present application provides a water-cooled transformer. A first water channel surrounding the transformer body and a second water channel extending into the interior of the transformer body are formed on the water-cooling shell of the transformer. The water-cooling pipeline structure is simple and can dissipate heat from the transformer body from both the inside and the outside, thereby achieving a good cooling effect.

[0005] The utility model is implemented in the following manner: The application provides a water-cooled transformer, comprising a water-cooling shell with a water-cooling pipeline therein and a transformer body, the water-cooling shell being recessed to form a receiving cavity for receiving the transformer body, the water-cooling shell comprising a first shell surrounding the receiving cavity and a second shell arranged in the receiving cavity and extending into the interior of the transformer body, the water-cooling pipeline comprising a first water channel arranged in the first shell surrounding the receiving cavity and a second water channel arranged in the second shell, the first water channel and the second water channel being connected, and an external water source being connected to the water-cooling pipeline to cool the transformer body.

[0006] In a preferred embodiment, the first water channel includes a first branch and a second branch, and the water-cooling shell has a water inlet and a water outlet. After the external water source flows in from the water inlet, it flows through the first branch, the second water channel, and the second branch in sequence before flowing out from the water outlet.

[0007] In a preferred embodiment, the first branch is arranged in a rotational manner in the axial direction of the first shell, and the second branch is arranged in a rotational manner in the axial direction of the first shell.

[0008] In a preferred embodiment, the water-cooling housing further includes a third housing disposed below the first housing and the second housing, and the water inlet and the water outlet are disposed on the third housing.

[0009] In a preferred embodiment, the water-cooled transformer is further provided with a first cover plate, a first opening communicating with the first water channel is formed at the top end of the first shell, and the first cover plate is provided to cover the first opening.

[0010] In a preferred embodiment, the water-cooled transformer is further provided with a first sealing ring, and the first sealing ring is sandwiched between the first cover plate and the top end of the first shell.

[0011] In a preferred embodiment, the water-cooled transformer is further provided with a second cover plate, a second opening communicating with the second water channel is formed at the top end of the second shell, and the second cover plate is provided to cover the second opening.

[0012] In a preferred embodiment, the water-cooled transformer is further provided with a second sealing ring, and the second sealing ring is sandwiched between the second cover plate and the top end of the second shell.

[0013] In a preferred embodiment, the water-cooled transformer is further provided with a third cover plate, the bottom end of the third shell is provided with a third opening connected to the first water channel and the second water channel, and the third cover plate is provided to cover the third opening.

[0014] In a preferred embodiment, the water-cooled transformer is further provided with a third sealing ring, and the third sealing ring is sandwiched between the third cover plate and the bottom end of the third shell.

[0015] This application has at least the following technical effects:

[0016] 1. The water-cooled transformer of the present application consists of a water-cooling shell and a transformer body, wherein the water-cooling shell is concave to form a receiving cavity for accommodating the transformer body. A first water channel surrounding the outer periphery of the receiving cavity and a second water channel extending into the interior of the transformer body are formed in the water-cooling shell. The first water channel and the second water channel dissipate heat from the inside to the outside of the transformer body, and the first water channel and the second water channel are connected to form a series pipeline, which effectively reduces the temperature of the transformer body and provides good heat dissipation effect for the entire transformer.

[0017] 2. The first water channel includes a first branch and a second branch. After the external water source flows in from the water inlet, it flows through the first branch, the second water channel and the second branch in sequence and is discharged from the water outlet. The first water channel and the second water channel are arranged in series. The water inlet pipeline structure is simple in design and can ensure the temperature balance inside and outside the transformer body, further improving the heat dissipation effect of the transformer body.

[0018] 3. The first branch and the second branch are both arranged in a rotational manner in the axial direction of the first shell. The rotational arrangement in the axial direction of the first shell means that the first branch and the second branch are both arranged in an up and down staggered manner in the axial direction of the first shell. This can further enhance the heat dissipation in the axial direction of the transformer body, ensure the consistent heat dissipation effect in the axial direction of the transformer body, ensure the uniform temperature of the transformer body, and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded view of the water-cooled transformer of the present application.

[0020] Figure 2 It is a structural diagram of the water-cooled transformer of the present application.

[0021] Figure 3 It is a top view of the water-cooled transformer of the present application.

[0022] Figure 4 It is a cross-sectional view of the water-cooled transformer of the present application.

[0023] Figure 5 It is a structural schematic diagram of the water-cooling shell of this application.

[0024] Figure 6 It is a bottom view of the water-cooling housing of the present application.

[0025] The meanings of the various marks in the accompanying drawings are as follows: 1. third cover plate; 2. third sealing ring; 3. water-cooling shell; 30. accommodating chamber; 31. first shell; 311. first opening; 32. second shell; 321. second opening; 33. third shell; 331. third opening; 4. first sealing ring; 5. first cover plate; 6. transformer body; 7. second cover plate; 8. second sealing ring; 9. water inlet; 10. water outlet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0027] The utility model provides a water-cooled transformer. Specifically, the water-cooled transformer includes a water-cooling shell 3 with a water-cooling pipeline arranged inside and a transformer body 6. The water-cooling shell 3 is formed with a receiving cavity 30 for accommodating the transformer body 6 by a recess. The water-cooling shell 3 includes a first shell 31 surrounding the receiving cavity 30 and a second shell 32 arranged in the receiving cavity 30 and extending into the interior of the transformer body 6. The water-cooling pipeline includes a first water channel arranged in the first shell 31 surrounding the receiving cavity 30 and a second water channel arranged in the second shell 32. The first water channel and the second water channel are connected, and an external water source is connected to the water-cooling pipeline to cool the transformer body. 6. With such a configuration, when the transformer body 6 is placed in the accommodating cavity 30, the heat generated by the transformer body 6 during operation can be dissipated through heat exchange with the water sources in the first water channel and the second water channel, thereby effectively reducing the temperature of the transformer body 6. Since the water-cooling pipeline includes the first water channel surrounding the outer periphery of the accommodating cavity 30 and the second water channel extending into the interior of the transformer body 6, the first water channel and the second water channel dissipate heat from the transformer body 6 from the inside to the outside, and the first water channel and the second water channel are connected to form a series pipeline, which improves the heat dissipation effect of the entire transformer on the basis of simplifying the water channel structure, ensuring the normal operation and safe use of the transformer.

[0028] Specifically, the water-cooling housing 3 includes an annular first housing 31, which is composed of an annular inner wall, an annular outer wall, and a top wall connecting the inner and outer walls. The first water channel is preferably arranged in an up-and-down rotational pattern in the axial direction of the first housing 31. This arrangement can ensure temperature balance across the top and bottom of the first housing 31. It will be understood that the up-and-down rotational pattern of the first water channel within the first housing 31 can refer to a wave-like arrangement within the first housing 31.

[0029] In order to improve the heat dissipation effect of the transformer body 6, in the present application, the water-cooling housing 3 also includes a second housing 32. The second housing 32 is cylindrical, and a second water channel is formed in the second housing 32. The second water channel is connected to the first water channel and extends into the interior of the accommodating cavity 30. With this arrangement, when the transformer body 6 is installed in the accommodating cavity 30, the second housing 32 can extend into the interior of the transformer body 6 to dissipate heat from the transformer body 6, further improving the heat dissipation effect of the transformer body 6. Preferably, the second housing 32 is formed by an upward protrusion of the bottom wall of the accommodating cavity 30. With this arrangement, through dual heat exchange between the first water channel and the second water channel, heat is exchanged with the transformer body 6 from the inside out, effectively reducing the temperature of the transformer body 6 and having a high heat exchange efficiency.

[0030] Preferably, the water-cooling housing 3 further includes a third housing 33 disposed at the lower end of the first housing 31 and the second housing 32. The third housing is provided with a water inlet 9 and a water outlet 10. A first water circuit is provided within the first housing 31. The first water circuit includes a first branch and a second branch. Water from an external source flows in through the water inlet 9 of the third housing 33, then flows sequentially through the first branch, the second water circuit, and the second branch before exiting the water outlet 10. Because the first and second water circuits are arranged in series, the water inlet piping structure is simple in design and can ensure temperature balance inside and outside the transformer body 6, further enhancing the heat dissipation effect on the transformer body 6. It is understood that the first and second branches are also arranged in an up-and-down rotational pattern in the axial direction of the first housing 31.

[0031] Preferably, the third shell 33 is in the shape of a rectangular parallelepiped as a whole, and the top of the third shell 33 bulges upward to form a first shell 31 and a second shell 32. By providing a water inlet 9 and a water outlet 10 on the third shell 33, heat exchange between the external water source and the water source in the water-cooled shell 3 is achieved, thereby effectively reducing the temperature of the transformer body 6.

[0032] It can be understood that the material of the water-cooled shell 3 is metal, the common material is stainless steel or aluminum profile, preferably aluminum profile. Aluminum profile has a high thermal conductivity and can conduct temperature more quickly, ensuring that the entire water-cooled transformer has a high heat dissipation efficiency.

[0033] In the present application, the water-cooling shell 3 is integrally formed and is arranged around the transformer body 6. The installation is simple and convenient, and the water-cooling shell 3 has high heat dissipation efficiency. The water-cooled transformer has high performance.

[0034] In the present application, the water-cooled transformer is further provided with a first cover plate 5. The top of the first housing 31 is provided with a first opening 311 connected to the first waterway, and the first cover plate 5 is disposed on the first opening 311. Preferably, the water-cooled transformer is further provided with a first sealing ring 4, which is sandwiched between the first cover plate 5 and the top wall of the first housing 31 to prevent water from overflowing from the first opening 311.

[0035] In the present application, a plurality of first openings 311 are provided on the top of the first shell 31, and the plurality of first openings 311 are evenly arranged around the circumference of the accommodating cavity 30. There are a plurality of first sealing rings 4, and a first embedding groove surrounding the first opening 311 is provided on the outer periphery of each first opening 311. The first sealing ring 4 is arranged in the first embedding groove. The first cover plate 5 is annular. When the first cover plate 5 is covered on the top of the first shell 31, the plurality of first sealing rings 4 are clamped between the first cover plate 5 and the first shell 31.

[0036] In the present application, the water-cooled transformer is further provided with a second cover plate 7. A second opening 321 communicating with the second waterway is formed at the top of the second housing 32, and the second cover plate 7 is disposed over the second opening 321. Preferably, a second sealing ring 8 is further disposed between the second cover plate 7 and the top of the second housing 32. A second bezel is provided at the top of the second housing 32 on the outer periphery of the second opening 321, and the second sealing ring 8 is mounted within the second bezel. When the second cover plate 7 is disposed over the top of the second housing 32, the second sealing ring 8 is sandwiched between the second cover plate 7 and the second housing 32, thereby preventing water from overflowing from the second opening 321.

[0037] In the present application, the water-cooled transformer is further provided with a third cover plate 1. The bottom surface of the third housing 33 is provided with a third opening 331 that communicates with the first waterway and the second waterway. The third cover plate 1 is disposed over the third opening 331. Preferably, a third sealing ring 2 is disposed between the third cover plate 1 and the bottom surface of the third housing 33. The bottom surface of the third housing 33 is provided with a third bezel around the outer periphery of the third opening 331. The third sealing ring 2 is mounted within the third bezel. When the third cover plate 1 is disposed over the bottom surface of the third housing 33, the third sealing ring 2 is sandwiched between the third cover plate 1 and the third housing 33, thereby preventing water from overflowing from the third opening 331.

[0038] It can be understood that the first cover plate 5 and the top wall of the first shell 31, the second cover plate 7 and the top end of the second shell 32, and the third cover plate 1 and the middle of the bottom surface of the third shell 33 are all fixed by bolts.

[0039] In a preferred embodiment of the present application, the flow path of the water source in the water-cooled housing 3 is as follows: the lower ends of the first branch and the second branch in the first housing 31 extend into the third housing 33 and communicate with the third opening 331 opened on the bottom surface of the third housing 33. In this way, the water source flowing in from the water inlet 9 of the third housing 33 first enters the first housing 31 upward, flows from the bottom to the upper end of the first housing 31, flows through the first opening 311, then flows downward into the third housing 33, flows through the third opening 331, and then flows upward into the second housing 32. , flows from bottom to top in the second shell 32 to the upper end of the second shell 32, flows through the second opening 321, and then flows from top to bottom into the third shell 33, flows through the third opening 331, and then enters the first shell 31 upward again, flows upward to the upper end of the first shell 31, flows through the first opening 311, flows downward again into the third shell 33, and finally flows out from the water outlet 10 of the third shell, thereby realizing the flow of water source among the first shell 31, the second shell 32, and the third shell 33, realizing the series heat dissipation of the water path.

[0040] It can be understood that in this embodiment, the water source only rotates up and down once in the first branch and the second branch. In other embodiments, the water source can rotate multiple times in the first branch and the second branch. That is, after the water source enters the third shell 33 from the water inlet 9, the water source rotates up and down between the first shell 31 and the third shell 33 multiple times before entering the second shell 32. After flowing out of the second shell 32, the water source can rotate up and down between the first shell 31 and the third shell 33 multiple times before being discharged from the water outlet 10.

[0041] It can be understood that in order to further improve the heat dissipation effect of the water-cooled radiator, after the transformer body 6 is installed in the accommodating cavity 30, thermal conductive glue is filled between the transformer body 6 and the cavity wall of the accommodating cavity 30. The thermal conductive glue can transfer the heat of the transformer body 6 to the cavity wall of the accommodating cavity 30, and then transfer it to the water source inside the heat dissipation shell through the cavity wall, and realize heat dissipation through the flow of external water source.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth-shaped structure", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the structure referred to has a specific direction, is constructed and operates in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0043] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" may refer to a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] Although the embodiments disclosed in the present invention are as described above, the contents described are merely embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art to which the present invention belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention. However, the scope of patent protection of the present invention shall still be defined by the attached claims.

Claims

1. A water-cooled transformer, comprising a water-cooled housing with a water-cooling pipeline and a transformer body, characterized in that: The water-cooling housing is recessed to form an accommodating cavity for accommodating the transformer body. The water-cooling housing includes a first shell surrounding the accommodating cavity and a second shell arranged in the accommodating cavity and extending into the interior of the transformer body. The water-cooling pipeline includes a first water channel arranged in the first shell surrounding the accommodating cavity and a second water channel arranged in the second shell. The first water channel and the second water channel are connected, and an external water source is connected to the water-cooling pipeline to cool the transformer body.

2. A water-cooled transformer according to claim 1, characterized in that: The first water channel includes a first branch and a second branch, and the water-cooling shell has a water inlet and a water outlet. After external water flows in from the water inlet, it flows through the first branch, the second water channel, and the second branch in sequence before flowing out from the water outlet.

3. A water-cooled transformer according to claim 2, characterized in that: The first branch is arranged in a rotational manner in the axial direction of the first shell, and the second branch is arranged in a rotational manner in the axial direction of the first shell.

4. The water-cooled transformer according to claim 2, characterized in that: The water-cooling housing further includes a third housing disposed below the first housing and the second housing, and the water inlet and the water outlet are disposed on the third housing.

5. The water-cooled transformer according to claim 1, characterized in that: The water-cooled transformer is further provided with a first cover plate. A first opening communicating with the first water channel is formed at the top of the first shell, and the first cover plate is provided to cover the first opening.

6. The water-cooled transformer according to claim 5, characterized in that: The water-cooled transformer is further provided with a first sealing ring, which is sandwiched between the first cover plate and the top end of the first shell.

7. The water-cooled transformer according to claim 1, characterized in that: The water-cooled transformer is further provided with a second cover plate. A second opening communicating with the second water channel is formed at the top of the second shell. The second cover plate is provided to cover the second opening.

8. The water-cooled transformer according to claim 7, characterized in that: The water-cooled transformer is further provided with a second sealing ring, which is sandwiched between the second cover plate and the top end of the second shell.

9. The water-cooled transformer according to claim 4, characterized in that: The water-cooled transformer is further provided with a third cover plate. A third opening communicating with the first water channel and the second water channel is formed at the bottom end of the third shell. The third cover plate is provided to cover the third opening.

10. The water-cooled transformer according to claim 9, characterized in that: The water-cooled transformer is further provided with a third sealing ring, which is sandwiched between the third cover plate and the bottom end of the third shell.

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