Integrated air-cooled vegetable oil transformer
By using an integrated air-cooling mechanism, a fan and a semiconductor cooler are used to cool and circulate the vegetable oil, solving the problem of poor heat dissipation of vegetable oil transformers in high-temperature environments and achieving a more efficient heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG KEHUA ELECTRIC POWER TECHNOLOGY CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-19
AI Technical Summary
Existing vegetable oil transformers have poor heat dissipation performance in high-temperature environments, which affects the efficiency of vegetable oil utilization.
An integrated air-cooling mechanism is adopted, including a piston extraction box, a heat exchange cylinder, a fan, and a semiconductor cooler. Vegetable oil is drawn into the extraction box through a spiral extraction tube, cooled by the fan, and further cooled by the semiconductor cooler before being returned to the transformer body.
It improves the heat dissipation effect of vegetable oil transformers and enhances their cooling capacity in high-temperature environments.
Smart Images

Figure CN224263896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vegetable oil transformers, specifically to an integrated air-cooled vegetable oil transformer. Background Technology
[0002] Vegetable oil transformers are power transformers that use natural vegetable oils (such as soybean oil and rapeseed oil) as insulation and cooling media. Compared to traditional mineral oil transformers, they have significant advantages in terms of environmental protection, safety, and sustainability. Existing vegetable oil transformers generate high temperatures during operation. If the temperature is too high, the vegetable oil deteriorates more rapidly. Therefore, heat sinks are typically used for cooling. However, if the ambient temperature is high, especially in summer, the heat sinks are ineffective, reducing the cooling efficiency of the vegetable oil and consequently affecting the usability of the vegetable oil inside the transformer. Therefore, those skilled in the art have provided an integrated air-cooled vegetable oil transformer to solve the problems mentioned in the background section. Utility Model Content
[0003] To solve the above technical problems, this utility model provides an integrated air-cooled vegetable oil transformer, including a transformer body. An air-cooling mechanism is installed at the right end of the transformer body. The air-cooling mechanism includes a piston extraction box and a heat exchange cylinder. The extraction box is fixed to the side of the transformer body. A one-way valve is installed at the lower end of the extraction box. A return pipe is installed at the lower end of the one-way valve and is connected to the transformer body. A second one-way valve is installed at the lower end of the extraction box. A spiral extraction pipe is installed at the lower end of the second one-way valve and is connected to the transformer body.
[0004] A heat exchange cylinder is installed on the outer surface of the spiral extraction tube, a temperature sensor is installed on the inner wall of the heat exchange cylinder, an air outlet is opened on the side of the heat exchange cylinder, an air inlet frame is symmetrically installed on the side of the heat exchange cylinder, a fan is installed inside the air inlet frame, a semiconductor cooler is installed on the inner wall of the air inlet frame, and a piston plate is slidably connected inside the extraction box.
[0005] Preferably, the inlet of check valve one faces upward and the outlet faces downward, while the inlet of check valve two faces downward and the outlet faces upward.
[0006] Preferably, a bevel gear 1 is installed at one end of the fan, a rotating rod is rotatably connected inside the two air inlet frames, two bevel gears 2 are installed on the outer surface of the rotating rod, and the bevel gears 2 and 1 mesh with each other, and a bevel gear 3 is installed at the upper end of the rotating rod.
[0007] Preferably, sliding rods are symmetrically installed on the upper end of the piston plate, and the upper ends of the two sliding rods pass through the extraction box and are fixedly connected to the reciprocating plate.
[0008] Preferably, the reciprocating plate is internally connected to the reciprocating screw, and the reciprocating screw is rotatably connected to the upper end of the extraction box. A bevel gear four is installed on the upper end of the reciprocating screw, and an L-shaped plate is rotatably connected to the outer surface of the reciprocating screw, and the L-shaped plate is fixed to the upper end of the extraction box.
[0009] Preferably, a motor is mounted on the upper end of the L-shaped plate, a rotating shaft is mounted on the side of the motor, and two bevel gears are mounted on the outer surface of the rotating shaft, with the two bevel gears meshing with bevel gears three and four respectively.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] This invention uses a spiral extraction tube to draw vegetable oil from inside the transformer body into an extraction box. Simultaneously, a fan generates airflow that blows towards the spiral extraction tube, cooling the vegetable oil flowing inside. A semiconductor cooler further reduces the temperature inside the air inlet frame, thereby improving the cooling effect on the vegetable oil. Then, the cooled vegetable oil in the extraction box is returned to the transformer body through a return pipe, thus improving the heat dissipation effect of the vegetable oil inside the transformer body. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this application;
[0013] Figure 2 This is a schematic diagram of the air-cooling mechanism of this application;
[0014] Figure 3 This is a schematic diagram of the extraction box in this application;
[0015] Figure 4 This is a schematic diagram of the structure of the heat exchange cylinder of this application;
[0016] In the picture:
[0017] 1. Transformer body; 2. Heat sink; 3. Air cooling mechanism; 4. Extraction box; 5. One-way valve 1; 6. Return pipe; 7. One-way valve 2; 8. Heat exchange cylinder; 9. Spiral extraction pipe;
[0018] 10. Temperature sensor; 11. Air outlet; 12. Air inlet frame; 13. Fan; 14. Bevel gear one; 15. Rotating rod; 16. Bevel gear two; 17. Bevel gear three; 18. Semiconductor cooler; 19. Piston plate;
[0019] 20. Sliding rod; 21. Reciprocating plate; 22. Reciprocating lead screw; 23. L-shaped plate; 24. Bevel gear four; 25. Rotating shaft; 26. Motor; 27. Bevel gear five. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0021] Please see Figures 1-4 This embodiment provides an integrated air-cooled vegetable oil transformer, including a transformer body 1. Several heat sinks 2 are installed on the outer surface of the transformer body 1. An air-cooling mechanism 3 is installed at the right end of the transformer body 1. The air-cooling mechanism 3 includes a piston extraction box 4 and a heat exchange cylinder 8. The extraction box 4 is fixed to the side of the transformer body 1. A one-way valve 5 is installed at the lower end of the extraction box 4, with the inlet of the one-way valve 5 facing upwards and the outlet facing downwards. A return pipe 6 is installed at the lower end of the one-way valve 5, and the return pipe 6 connects to the transformer body 1. A one-way valve 2 7 is installed at the lower end of box 4, with the inlet of the one-way valve 2 7 facing downwards and the outlet facing upwards. A spiral extraction pipe 9 is installed at the lower end of the one-way valve 2 7, and the spiral extraction pipe 9 is connected to the transformer body 1. A heat exchange cylinder 8 is installed on the outer surface of the spiral extraction pipe 9. A temperature sensor 10 is installed on the inner wall of the heat exchange cylinder 8. An air outlet 11 is opened on the side of the heat exchange cylinder 8. Air inlet frames 12 are symmetrically installed on the side of the heat exchange cylinder 8. A fan 13 is installed inside the air inlet frame 12. A bevel gear 14 is installed at one end of the fan 13. The two air inlet frames 12 rotate together. A rotating rod 15 is connected to the air intake frame 12. Two bevel gears 16 are mounted on the outer surface of the rotating rod 15, and the bevel gears 16 mesh with the first bevel gear 14. A third bevel gear 17 is mounted on the upper end of the rotating rod 15. A semiconductor cooler 18 is mounted on the inner wall of the air intake frame 12. A piston plate 19 is slidably connected inside the extraction box 4. Sliding rods 20 are symmetrically mounted on the upper end of the piston plate 19, and the upper ends of the two sliding rods 20 pass through the extraction box 4 and are fixedly connected to a reciprocating plate 21. The reciprocating plate 21 is fitted with a reciprocating screw 22, and the reciprocating screw 22 rotates to connect the reciprocating plate 21. Connected to the upper end of the extraction box 4, a bevel gear 24 is installed on the upper end of the reciprocating screw 22. An L-shaped plate 23 is rotatably connected to the outer surface of the reciprocating screw 22, and the L-shaped plate 23 is fixed to the upper end of the extraction box 4. A support block is installed on the side of the L-shaped plate 23, and the support block is rotatably connected to the outer surface of the rotating rod 15. A motor 26 is installed on the upper end of the L-shaped plate 23. A rotating shaft 25 is installed on the side of the motor 26. Two bevel gears 27 are installed on the outer surface of the rotating shaft 25, and the two bevel gears 27 mesh with bevel gears 17 and 24 respectively.
[0022] The working principle of this utility model is as follows: Motor 26 drives two bevel gears 27 to rotate via shaft 25. One bevel gear 27 meshes with bevel gear 24, driving reciprocating screw 22 to rotate. Reciprocating screw 22 drives reciprocating plate 21 to move up and down. Reciprocating plate 21 drives piston plate 19 to move up and down inside extraction box 4 via sliding rod 20. When piston plate 19 rises, one-way valve 5 closes and one-way valve 7 opens, drawing vegetable oil from inside transformer body 1 into extraction box 4 through spiral extraction tube 9. At the same time, another bevel gear 27 meshes with bevel gear 17, driving rotating rod 15 to rotate. Rotating rod 15, through bevel gear 16 and bevel gear 17, drives rotating rod 15 to rotate. The engagement of valve 14 drives the fan 13 to rotate, and the rotation of the fan 13 generates airflow that blows onto the spiral extraction tube 9, cooling the spiral extraction tube 9 and the vegetable oil flowing inside the spiral extraction tube 9. (The temperature sensor 10 senses the temperature inside the heat exchange cylinder 8. When the weather is hot and the temperature inside the heat exchange cylinder 8 is high, the semiconductor cooler 18 works to lower the temperature inside the air inlet frame 12, thereby improving the cooling effect on the plant.) Then, when the piston plate 19 descends, the one-way valve 5 opens and the one-way valve 7 closes, and the cooled vegetable oil in the extraction box 4 is transported back to the transformer body 1 through the return pipe 6, thereby improving the heat dissipation effect of the transformer body.
[0023] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. An integrated air-cooled vegetable oil transformer comprising a transformer body (1), characterized in that, The transformer body (1) is equipped with a cooling mechanism (3) on the right end. The cooling mechanism (3) includes a piston extraction box (4) and a heat exchange cylinder (8). The extraction box (4) is fixed on the side of the transformer body (1). A one-way valve (5) is installed at the lower end of the extraction box (4). A return pipe (6) is installed at the lower end of the one-way valve (5), and the return pipe (6) is connected to the transformer body (1). A one-way valve (7) is installed at the lower end of the extraction box (4). A spiral extraction pipe (9) is installed at the lower end of the one-way valve (7), and the spiral extraction pipe (9) is connected to the transformer body (1). A heat exchange cylinder (8) is installed on the outer surface of the spiral extraction tube (9). A temperature sensor (10) is installed on the inner wall of the heat exchange cylinder (8). An air outlet (11) is opened on the side of the heat exchange cylinder (8). An air inlet frame (12) is symmetrically installed on the side of the heat exchange cylinder (8). A fan (13) is installed inside the air inlet frame (12). A semiconductor cooler (18) is installed on the inner wall of the air inlet frame (12). A piston plate (19) is slidably connected inside the extraction box (4).
2. An integrated air-cooled vegetable oil transformer as claimed in claim 1, wherein, The one-way valve (5) has its inlet facing upwards and its outlet facing downwards, while the one-way valve (7) has its inlet facing downwards and its outlet facing upwards.
3. An integrated air-cooled vegetable oil transformer as claimed in claim 1, wherein, One end of the fan (13) is equipped with a bevel gear (14), and the two air inlet frames (12) are rotatably connected to a rotating rod (15). Two bevel gears (16) are installed on the outer surface of the rotating rod (15), and the bevel gears (16) and bevel gears (14) mesh with each other. A bevel gear (17) is installed on the upper end of the rotating rod (15).
4. An integrated air-cooled vegetable oil transformer as claimed in claim 1, wherein, The piston plate (19) is symmetrically equipped with sliding rods (20), and the upper ends of the two sliding rods (20) pass through the extraction box (4) and are fixedly connected to the reciprocating plate (21).
5. An integrated air-cooled vegetable oil transformer as claimed in claim 4, wherein, The reciprocating plate (21) is fitted with the reciprocating screw (22), and the reciprocating screw (22) is rotatably connected to the upper end of the extraction box (4). A bevel gear (24) is installed on the upper end of the reciprocating screw (22). An L-shaped plate (23) is rotatably connected to the outer surface of the reciprocating screw (22), and the L-shaped plate (23) is fixed to the upper end of the extraction box (4).
6. An integrated air-cooled vegetable oil transformer as claimed in claim 5, wherein, A motor (26) is installed on the upper end of the L-shaped plate (23). A rotating shaft (25) is installed on the side of the motor (26). Two bevel gears (27) are installed on the outer surface of the rotating shaft (25), and the two bevel gears (27) mesh with bevel gears (17) and (24) respectively.