Transformer oil tank and oil-immersed transformer

Abstract

The utility model discloses a transformer oil tank and an oil-immersed transformer, belongs to the technical field of transformers, and aims to solve the problems that an oil tank is inconvenient to carry and move and poor in heat dissipation effect, the transformer oil tank comprises an oil tank base, and the top of the oil tank base is fixedly connected with an oil tank frame. Under the action of universal wheels, the oil tank is convenient to carry and move, and after the oil tank reaches a designated position, a first threaded rod is driven to rotate by rotating a handle, so that the device is stably positioned by a plurality of fixed suction cups, and the labor intensity of workers is greatly reduced; meanwhile, an air cooling heat dissipation mechanism is arranged, on the premise of heat dissipation of a heat dissipation pipe, a servo motor drives a second threaded rod to rotate, so that a ball nut seat drives a heat dissipation fan to move in a reciprocating mode, air cooling is conducted on the heat dissipation pipe, and the situation that operation of the transformer is affected due to the fact that the temperature of oil in an inner cavity of the box body is too high is avoided; and the cooling effect of the transformer oil tank is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a transformer oil tank and an oil-immersed transformer. Background Art

[0002] With the development of society, the design and use of transformers are particularly important. Transformers are devices that use the principle of electromagnetic induction to change AC voltage. Transformers are one of the important equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. Immersed transformers use transformer oil as an insulating and cooling medium by pouring it into the oil tank. The transformer oil tank is the outer shell of the transformer, which contains the iron core and windings and is filled with transformer oil, so that the iron core and windings are immersed in the oil. The transformer will generate heat during operation. The existing heat dissipation method mainly relies on immersing the transformer in transformer oil, and transferring the heat to the oil tank body through the transformer oil for natural heat dissipation.

[0003] In the prior art, there is an oil-immersed transformer oil tank and its transformer with patent announcement number CN214012694U. The above patent has the advantages of small size, strong heat dissipation capacity, simple and reasonable structure, which is convenient for stable operation of the transformer; but in actual use, there are still the following shortcomings: from a practical point of view, the oil tank and the transformer are heavy when actually installed, the existing oil tank is not convenient to carry and move, the labor intensity of the staff is high when transferring the transformer, which increases the difficulty of installation and transportation; at the same time, the oil tank used in the oil-immersed transformer relies on the change of the temperature of the oil medium itself to flow, and only relies on the oil liquid medium itself to dissipate heat, which leads to a poor cooling effect of the oil tank and a reduced performance of the transformer.

[0004] Therefore, a transformer oil tank and an oil-immersed transformer are needed to solve the problems in the prior art that the oil tank is inconvenient to carry and move and has poor heat dissipation effect. Utility Model Content

[0005] The purpose of the utility model is to provide a transformer oil tank and an oil-immersed transformer to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer oil tank and an oil-immersed transformer, comprising an oil tank base, the top of the oil tank base is fixedly connected to the oil tank frame, the oil tank frame is equipped with an oil tank cover, the bottom of the oil tank base is fixedly connected to a plurality of universal wheels, both sides of the oil tank base are fixedly connected to support plates, the tops of the two support plates are rotatably connected to two first threaded rods, the tops of the plurality of first threaded rods are fixedly connected to handles, the bottoms of the plurality of first threaded rods are rotatably connected to fixed suction cups, the top of the oil tank cover is equipped with an oil filling port, one side of the oil tank frame is equipped with an oil outlet, both sides and front and rear ends of the oil tank frame are equipped with heat dissipation pipes, the outer walls of the plurality of heat dissipation pipes are fixedly connected to heat sinks, the outer walls of the plurality of heat sinks are fixedly connected to auxiliary fins, a plurality of high-pressure pipe sleeves are installed on the top of the oil tank cover, the top of the oil tank cover near the two sides is fixedly connected to mounting ears, and both sides and front and rear ends of the oil tank cover are equipped with air-cooled heat dissipation mechanisms.

[0007] It should be noted in the solution that the fuel tank frame is made of nano-aluminum alloy composite material.

[0008] It is further worth noting that the surfaces of the two support plates are both provided with thread grooves corresponding to the first threaded rods.

[0009] It should be further explained that the outer walls of the heat dissipation pipes, heat dissipation fins and auxiliary fins are all sprayed with a silicon carbide ceramic heat dissipation layer.

[0010] As a preferred embodiment, the two mounting ears are symmetrically arranged on the top of the fuel tank cover.

[0011] As a preferred embodiment, the air-cooled heat dissipation mechanism includes a mounting groove fixedly connected to the outer wall of the fuel tank cover, a second threaded rod is rotatably connected between the inner walls on both sides of the mounting groove, a servo motor corresponding to the second threaded rod is installed on one side of the mounting groove, a ball nut seat is rotatably connected to the outer wall of the second threaded rod, a limiting slider is fixedly connected to the top of the ball nut seat, and a heat dissipation fan is fixedly connected to the bottom of the ball nut seat.

[0012] As a preferred implementation, a limiting sliding groove corresponding to the limiting sliding block is provided on the lower surface of the top of the installation groove.

[0013] As a preferred implementation, the oil-immersed transformer includes a transformer body.

[0014] Compared with the prior art, the utility model provides a transformer oil tank and an oil-immersed transformer, which have at least the following beneficial effects:

[0015] (1) By arranging the universal wheel and the fixed suction cup in coordination, the universal wheel facilitates the handling and movement of the oil tank. After reaching the designated position, it is only necessary to turn the handle to drive the first threaded rod to rotate, so that the multiple fixed suction cups can firmly position the device, which greatly reduces the labor intensity of the staff.

[0016] (2) By setting up an air-cooled heat dissipation mechanism, under the premise of the heat dissipation of the heat pipe itself, the second threaded rod is driven to rotate by the servo motor, so that the ball nut seat drives the heat dissipation fan to move back and forth, and the heat dissipation pipe is cooled by air, thereby avoiding the influence of the oil temperature in the inner cavity of the box on the operation of the transformer due to the excessively high temperature of the oil, and effectively improving the cooling effect of the transformer oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the heat sink in the utility model;

[0021] Figure 5 It is a structural schematic diagram of the air cooling heat dissipation mechanism in the utility model;

[0022] In the figure: 1. oil tank base; 2. oil tank frame; 3. oil tank cover; 4. universal wheel; 5. support plate; 6. first threaded rod; 7. handle; 8. fixed suction cup; 9. oil filling port; 10. oil outlet; 11. heat dissipation pipe; 12. heat sink; 13. auxiliary fin; 14. high-pressure pipe sleeve; 15. mounting ear; 16. air-cooled heat dissipation mechanism; 1601. mounting groove; 1602. second threaded rod; 1603. servo motor; 1604. ball nut seat; 1605. limit slider; 1606. heat dissipation fan; 17. transformer body. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the embodiments.

[0024] See also Figure 1-5The utility model provides a transformer oil tank and an oil-immersed transformer, including an oil tank base 1, a tank frame 2 is fixedly connected to the top of the oil tank base 1, a tank cover 3 is installed on the oil tank frame 2, a plurality of universal wheels 4 are fixedly connected to the bottom of the oil tank base 1, support plates 5 are fixedly connected to both sides of the oil tank base 1, two first threaded rods 6 are rotatably connected to the tops of the two support plates 5, handles 7 are fixedly connected to the tops of the plurality of first threaded rods 6, fixed suction cups 8 are rotatably connected to the bottoms of the plurality of first threaded rods 6, an oil filling port 9 is installed on the top of the oil tank cover 3, an oil outlet 10 is installed on one side of the oil tank frame 2, heat dissipation pipes 11 are installed on both sides and the front and rear ends of the oil tank frame 2, heat dissipation fins 12 are fixedly connected to the outer walls of the plurality of heat dissipation pipes 11, auxiliary fins 13 are fixedly connected to the outer walls of the plurality of heat dissipation fins 12, a plurality of high-pressure pipe sleeves 14 are installed on the top of the oil tank cover 3, mounting ears 15 are fixedly connected to the top of the oil tank cover 3 near the two sides, and air-cooling heat dissipation mechanisms 16 are arranged on both sides and the front and rear ends of the oil tank cover 3.

[0025] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth specifically explaining that the fuel tank frame 2 is made of nano-aluminum alloy composite material. The nano-aluminum alloy composite material has the advantages of light weight, high strength, high rigidity, high shear strength, small thermal expansion, high thermal stability, excellent electrical conductivity, thermal conductivity, wear resistance, corrosion resistance, etc., and is easy to prepare, low cost, and can be subjected to secondary processing, which is convenient for the production and processing of the fuel tank frame 2.

[0026] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the surfaces of the two support plates 5 are both provided with thread grooves corresponding to the first threaded rod 6. Under the action of the thread grooves, the first threaded rod 6 can be lifted and lowered, thereby providing driving force for the lifting and lowering of the fixed suction cup 8.

[0027] Further Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the outer walls of the heat pipe 11, the heat sink 12 and the auxiliary fins 13 are sprayed with a silicon carbide ceramic heat dissipation layer. The surface area of ​​the ceramic material has about 20% more pores than the metal radiator, and has a larger contact area with the convection medium air, which can take away more heat in the same unit time and has a better heat dissipation effect.

[0028] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that the two mounting ears 15 are symmetrically arranged on the top of the fuel tank cover 3 to ensure that the fuel tank always remains stable during installation and transportation, thereby improving the safety of installation.

[0029] Further Figure 1 and Figure 2 As shown, it is worth to explain in detail that the oil-immersed transformer includes a transformer body 17 , and the transformer body 17 is stably installed inside the oil tank frame 2 .

[0030] According to the above working process, it can be known that: by setting the universal wheel 4 and the fixed suction cup 8 to cooperate with each other, under the action of the universal wheel 4, it is convenient to carry and move the oil tank. After reaching the designated position, it is only necessary to turn the handle 7 to drive the first threaded rod 6 to rotate, so that multiple fixed suction cups 8 can firmly position the device, which greatly reduces the labor intensity of the staff.

[0031] Further Figure 1 , Figure 2 and Figure 5 As shown, it is worth specifically explaining that the air-cooling heat dissipation mechanism 16 includes a mounting groove 1601 fixedly connected to the outer wall of the fuel tank cover 3, a second threaded rod 1602 is rotatably connected between the inner walls on both sides of the mounting groove 1601, a servo motor 1603 corresponding to the second threaded rod 1602 is installed on one side of the mounting groove 1601, a ball nut seat 1604 is rotatably connected to the outer wall of the second threaded rod 1602, a limiting slider 1605 is fixedly connected to the top of the ball nut seat 1604, a heat dissipation fan 1606 is fixedly connected to the bottom of the ball nut seat 1604, a limiting slide groove corresponding to the limiting slider 1605 is provided on the lower surface of the top of the mounting groove 1601, the limiting slide groove guides and limits the limiting slider 1605, so that the ball nut seat 1604 can make a stable reciprocating movement, thereby driving the heat dissipation fan 1606 to reciprocate.

[0032] This solution has the following working process: in actual use, the device is moved to the specified position through the universal wheel 4, and then the handle 7 is turned to drive the first threaded rod 6 to rotate, so that the multiple fixed suction cups 8 can firmly position the device. While the multiple heat pipes 11 are dissipating heat to the transformer in the box, the servo motor 1603 is turned on to drive the second threaded rod 1602 to rotate, so that the ball nut seat 1604 drives the heat dissipation fan 1606 to move back and forth, and the heat pipe 11 is cooled by air, thereby further improving the cooling of the transformer oil tank.

[0033] In summary: by setting the coordination between the universal wheel 4 and the fixed suction cup 8, under the action of the universal wheel 4, it is convenient to carry and move the oil tank. After reaching the designated position, it is only necessary to turn the handle 7 to drive the first threaded rod 6 to rotate, so that multiple fixed suction cups 8 can firmly position the device, which greatly reduces the labor intensity of the staff; by setting the air-cooled heat dissipation mechanism 16, under the premise of the heat dissipation of the heat pipe 11 itself, the heat dissipation fan 1606 is added to reciprocate and cool the heat pipe 11 with air, so as to avoid affecting the operation of the transformer due to the excessively high oil temperature in the inner cavity of the box, and effectively improve the cooling effect of the transformer oil tank.

Claims

1. A transformer oil tank, comprising an oil tank base (1), characterized in that: The top of the oil tank base (1) is fixedly connected to an oil tank frame (2), the oil tank frame (2) is installed with an oil tank cover (3), the bottom of the oil tank base (1) is fixedly connected to a plurality of universal wheels (4), both sides of the oil tank base (1) are fixedly connected to support plates (5), the tops of the two support plates (5) are rotatably connected to two first threaded rods (6), the tops of the plurality of first threaded rods (6) are fixedly connected to handles (7), the bottoms of the plurality of first threaded rods (6) are rotatably connected to fixed suction cups (8), and the top of the oil tank cover (3) is installed with an oil filling port ( 9), an oil outlet (10) is installed on one side of the oil tank frame (2), heat dissipation pipes (11) are installed on both sides and the front and rear ends of the oil tank frame (2), multiple heat dissipation pipes (11) are fixedly connected to the outer walls of multiple heat dissipation fins (12), multiple heat dissipation fins (12) are fixedly connected to the outer walls of multiple heat dissipation fins (13), multiple high-pressure pipe sleeves (14) are installed on the top of the oil tank cover (3), mounting ears (15) are fixedly connected to the top of the oil tank cover (3) near both sides, and air-cooled heat dissipation mechanisms (16) are provided on both sides and the front and rear ends of the oil tank cover (3).

2. A transformer oil tank according to claim 1, characterized in that: The oil tank frame (2) is made of nano-aluminum alloy composite material.

3. A transformer oil tank according to claim 1, characterized in that: The surfaces of the two support plates (5) are both provided with thread grooves corresponding to the first threaded rods (6).

4. A transformer oil tank according to claim 1, characterized in that: The outer walls of the heat dissipation pipe (11), the heat dissipation fins (12) and the auxiliary fins (13) are all sprayed with a silicon carbide ceramic heat dissipation layer.

5. A transformer oil tank according to claim 1, characterized in that: The two mounting ears (15) are symmetrically arranged on the top of the fuel tank cover (3).

6. A transformer oil tank according to claim 1, characterized in that: The air-cooled heat dissipation mechanism (16) comprises a mounting groove (1601) fixedly connected to the outer wall of the oil tank cover (3); a second threaded rod (1602) is rotatably connected between the inner walls on both sides of the mounting groove (1601); a servo motor (1603) corresponding to the second threaded rod (1602) is installed on one side of the mounting groove (1601); a ball nut seat (1604) is rotatably connected to the outer wall of the second threaded rod (1602); a limiting slider (1605) is fixedly connected to the top of the ball nut seat (1604); and a heat dissipation fan (1606) is fixedly connected to the bottom of the ball nut seat (1604).

7. A transformer oil tank according to claim 6, characterized in that: A limiting sliding groove corresponding to the limiting sliding block (1605) is provided on the lower surface of the top of the installation groove (1601).

8. An oil-immersed transformer, comprising a transformer oil tank as claimed in any one of claims 1 to 7, characterized in that: The oil-immersed transformer comprises a transformer body (17).

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