Oil-immersed transformer radiator with high-efficiency heat dissipation structure

Abstract

The utility model relates to a radiator for oil immersed transformer with high -efficient heat dissipation structure belongs to transformer heat dissipation technical field, including: the shell, the side surface of shell is fixedly connected with fin equidistance, the top of shell is screwed with bolt, the top of shell is fixedly connected top cover. Advantages: oil pump drives the even heat dissipation of insulating oil in S -shaped heat dissipation pipe, and simultaneously starts fan through external power supply, and the blowing of fan in the inside of two ventilation pipes is towards the same design, makes the air circulation above heat dissipation pipe, carries away the hot air in the inside of device, improved the heat dissipation efficiency of device, the filter frame of ventilation pipe both ends installs, carries out the filtration to the circulating air, reduces the situation that dust adheres device surface, improved the cleanness of device, and simultaneously through the installation mode of nut, threaded column, is convenient for dismounting replacement, fixed filter frame, improved the working efficiency of user and the cleanness of device.

Description

Technical Field

[0001] This utility model belongs to the field of transformer heat dissipation technology, specifically relating to a radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure. Background Technology

[0002] Oil-immersed transformers are a new type of high-performance transformer with a more rational structure and superior performance. Their three-dimensional wound core, with its three core columns arranged in an equilateral triangle, has no air gaps in its magnetic circuit, resulting in tighter winding. The three magnetic circuits are of equal and shortest lengths, and the cross-sectional area of ​​the core columns is closer to a circle. Therefore, performance is further improved, losses are reduced, noise is reduced, three-phase balance is achieved, and the third harmonic component is reduced. This product is more suitable for power grid upgrades in urban and rural areas and industrial and mining enterprises, and is also more suitable for combined transformers and prefabricated substation transformers.

[0003] In existing technologies, such as the Chinese patent application CN216793418U, a heat dissipation structure for a low-voltage welding transformer is disclosed, which solves the problem of dust accumulation in existing transformer heat dissipation structures. This heat dissipation structure includes a shell with a row of vertically penetrating heat dissipation slots on both sides. A plate is horizontally positioned above the shell, with a gap between the plate and the shell, and the two are fixedly connected by locking components. An exhaust pipe and a cooling fan are fixed to the bottom wall of the plate. The exhaust pipe includes a connected, straight inlet and outlet end. The inlet end connects to the cooling fan outlet, and the outlet end is vertically positioned. The number of outlet ends is the same as the number of heat dissipation slots, and each outlet end is inserted into a corresponding heat dissipation slot. This heat dissipation structure for a low-voltage welding transformer is less prone to dust accumulation. However, existing transformer heat dissipation structures have the following problems: First, the heat dissipation effect is not effective enough; second, the device does not easily filter and clean the air used for heat dissipation, which may lead to dust accumulation and reduce the device's heat dissipation efficiency.

[0004] In view of the aforementioned existing technology, it is necessary to make reasonable improvements to the structure of the transformer's heat sink. To this end, the applicant has made a beneficial design, and the technical solution described below arises from this background. Utility Model Content

[0005] The purpose of this invention is to provide a radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure, which can effectively improve the heat dissipation efficiency of the device, facilitate easy disassembly and replacement, and fix the filter frame, thereby improving the user's work efficiency and the cleanliness of the device.

[0006] The purpose of this utility model is achieved as follows: a radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure includes: a shell, fins fixedly connected at equal intervals on the sides of the shell, bolts threaded onto the top of the shell, a top cover fixedly connected to the top of the shell, one end of a connecting pipe fixedly connected to one side of the shell, the other end of the connecting pipe fixedly connected to the surface of an oil pump, a heat dissipation pipe fixedly connected to one side of the oil pump, an outer frame fixedly connected to the bottom of the shell, ventilation pipes fixedly connected to both sides of the outer frame, a fan fixedly connected inside the ventilation pipe, a threaded post fixedly connected to the outer side of the ventilation pipe, a collar sleeved on the surface of the threaded post, and a filter frame fixedly connected to the inner side of the collar.

[0007] In a specific embodiment of this utility model, the heat dissipation pipes are distributed in an S-shape at equal intervals on the bottom surface of the outer casing, and one end of the heat dissipation pipe is fixedly connected to the bottom surface of the outer casing.

[0008] In another specific embodiment of this utility model, a support plate is fixedly connected to the inner wall of the outer frame, and the interior of the support plate is engaged with the surface of the heat dissipation pipe.

[0009] In another specific embodiment of this utility model, a nut is threaded onto the surface of the threaded column, and the inner side of the nut abuts against the surface of the collar.

[0010] In another specific embodiment of this utility model, several fans are evenly distributed inside the ventilation duct, and the fans inside the two ventilation ducts blow air in the same direction.

[0011] In another specific embodiment of this utility model, an oil drain valve is fixedly connected to the bottom of the heat dissipation pipe, and the ventilation pipe is disposed above the heat dissipation pipe.

[0012] In a further specific embodiment of this utility model, the support plates are evenly distributed on the inner wall of the outer frame.

[0013] In a further specific embodiment of this utility model, mounting brackets are fixedly connected to the sides of the outer shell near the four corners, and the outer shell and the top cover are fixedly connected by bolts.

[0014] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: First, the oil pump drives the insulating oil to dissipate heat evenly inside the S-shaped heat dissipation tube. At the same time, the fan is started by the external power supply. The design of the fans inside the two ventilation tubes blowing air in the same direction allows the air to circulate above the heat dissipation tube, carrying away the hot air inside the device and improving the heat dissipation efficiency of the device. Second, the filter frames installed at both ends of the ventilation tubes filter the circulating air, reducing the amount of dust adhering to the surface of the device and improving the cleanliness of the device. At the same time, the installation method of nuts and threaded columns makes it easy to disassemble, replace and fix the filter frames, thereby improving the user's work efficiency and the cleanliness of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the connection structure of the heat dissipation pipe according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the connection structure of the support plate according to an embodiment of the present invention; Figure 4 A side view of an embodiment of this utility model.

[0016] In the diagram: 1. Outer shell; 2. Fins; 3. Bolts; 4. Top cover; 5. Mounting bracket; 6. Connecting pipe; 7. Oil pump; 8. Cooling pipe; 9. Oil drain valve; 10. Outer frame; 11. Support plate; 12. Ventilation pipe; 13. Fan; 14. Threaded post; 15. Nut; 16. Collar; 17. Filter frame. Detailed Implementation

[0017] The following detailed description is provided by way of embodiments. However, the description of the embodiments is not intended to limit the present utility model. Any formal but not substantive equivalent transformations made based on the present utility model concept should be considered within the scope of the present utility model's technical solution.

[0018] In the following description, all directional or orientational concepts such as up, down, left, right, front, and back are based on the positions shown in the accompanying drawings, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0019] Please see Figures 1 to 4This paper illustrates a radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure. It includes a housing 1, with fins 2 fixedly connected at equal intervals on the sides of the housing 1. Bolts 3 are threaded onto the top of the housing 1, and a top cover 4 is fixedly connected to the top of the housing 1. One end of a connecting pipe 6 is fixedly connected to one side of the housing 1, and the other end of the connecting pipe 6 is fixedly connected to the surface of an oil pump 7. A heat dissipation pipe 8 is fixedly connected to one side of the oil pump 7. An outer frame 10 is fixedly connected to the bottom of the housing 1, and ventilation pipes 12 are fixedly connected to both sides of the outer frame 10. A fan 13 is fixedly connected inside the ventilation pipe 12, and a threaded post 14 is fixedly connected to the outside of the ventilation pipe 12. A collar 16 is fitted onto the surface of the threaded post 14, and a filter frame 17 is fixedly connected to the inner side of the collar 16. The design of the heat dissipation pipe 8 and fan 13 facilitates heat dissipation of the insulating oil inside the device, filters dust from the air dissipating heat, and facilitates cleaning of the heat dissipation pipe 8, further improving the heat dissipation effect of the device.

[0020] In use, the heat dissipation pipes 8 are distributed in an S-shape at equal intervals on the bottom surface of the outer casing 1. One end of the heat dissipation pipe 8 is fixedly connected to the bottom surface of the outer casing 1. Through the structural design of the S-shaped heat dissipation pipe 8, it is easy for the heat dissipation pipe 8 to dissipate heat evenly and improve the working efficiency of the heat dissipation pipe 8.

[0021] Please see Figure 2 and Figure 3 A support plate 11 is fixedly connected to the inner wall of the outer frame 10. The inside of the support plate 11 is engaged with the surface of the heat sink 8. Through the connection between the support plate 11 and the heat sink 8, the support plate 11 provides a fixed support for the heat sink 8, which improves the stability of the heat sink 8 during installation.

[0022] In this embodiment, a nut 15 is threaded onto the surface of the threaded post 14. The inner side of the nut 15 abuts against the surface of the collar 16. The installation method of the nut 15 and the threaded post 14 facilitates the disassembly, replacement, and fixation of the aforementioned filter frame 17, thereby improving the user's work efficiency and the cleanliness of the device.

[0023] Please continue reading Figure 2 And please combine Figure 3 Several fans 13 are evenly distributed inside the ventilation duct 12. The fans 13 inside the two ventilation ducts 12 blow air in the same direction. The distribution of the fans 13 and the ventilation duct 12 facilitates the circulation of air inside the device and improves the heat dissipation effect of the device.

[0024] In this embodiment, an oil drain valve 9 is fixedly connected to the bottom of the heat dissipation pipe 8, and a ventilation pipe 12 is disposed above the heat dissipation pipe 8. The structure design of the oil drain valve 9 facilitates the cleaning of the insulating oil inside the heat dissipation pipe 8.

[0025] Furthermore, the support plates 11 are evenly distributed on the inner wall of the outer frame 10. The design of the support plates 11 being evenly distributed on the inner wall of the outer frame 10 facilitates the improvement of the stability of the support plates 11 when supporting.

[0026] Preferably, mounting brackets 5 are fixedly connected to the sides of the outer casing 1 near the four corners, and the outer casing 1 and the top cover 4 are fixedly connected by bolts 3. The position design of the mounting brackets 5 makes it easy to stably install the outer casing 1 in a suitable working environment.

[0027] Please see Figure 1 , Figure 2 , Figure 3 And can be combined Figure 4 The applicant briefly describes the working principle of this utility model: First, the insulating oil inside the outer shell 1 absorbs the heat generated during operation and dissipates it initially through the fins 2. The oil pump 7 is started by an external power supply, and the oil pump 7 drives the insulating oil to dissipate heat evenly inside the S-shaped heat dissipation pipe 8. At the same time, the fan 13 is started by an external power supply. The fans 13 inside the two ventilation pipes 12 blow air in the same direction, so that the air circulates above the heat dissipation pipe 8, carrying away the hot air inside the device. The filter frames 17 installed at both ends of the ventilation pipes 12 filter the circulating air, reducing the amount of dust adhering to the surface of the device and improving the cleanliness of the device. At the same time, the installation method of the nuts 15 and threaded posts 14 makes it easy to disassemble, replace and fix the aforementioned filter frames 17, thereby improving the user's work efficiency.

[0028] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. A radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure, characterized in that, include: The outer shell (1) has fins (2) fixedly connected at equal intervals on its side. The top of the outer shell (1) is threaded with bolts (3). The top of the outer shell (1) is fixedly connected with a top cover (4). One end of a connecting pipe (6) is fixedly connected to one side of the outer shell (1). The other end of the connecting pipe (6) is fixedly connected to the surface of an oil pump (7). A heat dissipation pipe (8) is fixedly connected to one side of the oil pump (7). An outer frame (10) is fixedly connected to the bottom of the outer shell (1). Ventilation pipes (12) are fixedly connected to both sides of the outer frame (10). A fan (13) is fixedly connected inside the ventilation pipe (12). A threaded post (14) is fixedly connected to the outside of the ventilation pipe (12). A collar (16) is sleeved on the surface of the threaded post (14). A filter frame (17) is fixedly connected to the inside of the collar (16).

2. The radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The heat dissipation pipes (8) are distributed in an S-shape at equal intervals on the bottom surface of the outer shell (1), and one end of the heat dissipation pipes (8) is fixedly connected to the bottom surface of the outer shell (1).

3. The oil-immersed transformer radiator with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The inner wall of the outer frame (10) is fixedly connected to a support plate (11), and the interior of the support plate (11) is engaged with the surface of the heat dissipation pipe (8).

4. The radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The threaded post (14) is threaded with a nut (15), and the inner side of the nut (15) abuts against the surface of the collar (16).

5. The radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure according to claim 1, characterized in that: Several fans (13) are evenly distributed inside the ventilation pipe (12), and the fans (13) inside the two ventilation pipes (12) blow air in the same direction.

6. The radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure according to claim 1, characterized in that: The bottom of the heat dissipation pipe (8) is fixedly connected to an oil drain valve (9), and the ventilation pipe (12) is located above the heat dissipation pipe (8).

7. The oil-immersed transformer radiator with a high-efficiency heat dissipation structure according to claim 3, characterized in that: The support plates (11) are evenly distributed on the inner wall of the outer frame (10).

8. The radiator for an oil-immersed transformer with a high-efficiency heat dissipation structure according to claim 1, characterized in that: Mounting brackets (5) are fixedly connected to the sides of the outer shell (1) near the four corners, and the outer shell (1) and the top cover (4) are fixedly connected by bolts (3).

Images