CN210896908U

CN210896908U - Oil-immersed heat-dissipation transformer

Info

Publication number: CN210896908U
Application number: CN201921881946.8U
Authority: CN
Inventors: 范利东; 余婵; 杨慧峰; 杨叶丰; 高云; 吴柯
Original assignee: Quzhou Hangyong Transformer Co ltd
Current assignee: Quzhou Hangyong Transformer Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-06-30
Anticipated expiration: 2029-11-04

Abstract

The utility model provides an oil-immersed heat dissipation transformer belongs to transformer heat dissipation technical field. It has solved current transformer and has carried out passive heat dissipation through the radiating fin who sets up on transformer tank frame usually, but the problem that the existence of this kind of structure warp easily, and it is poor to have the radiating effect moreover, influences the problem of the operation of transformer. The utility model discloses a transformer body and set up in the outer oil tank frame main part of transformer body, oil tank frame main part side encloses the defeated oil pipe that has a plurality of vertical settings, and defeated oil pipe cross sectional shape is triangle-shaped, still is equipped with the inlet port and the oil outlet that communicate with defeated oil pipe in the oil tank frame main part, and the inlet port sets up in oil tank frame main part upper end, and the oil outlet sets up in oil tank frame main part lower extreme, and defeated oil pipe inner wall still is equipped with the heat dissipation tooth of a plurality of even settings. The utility model has the advantages of firm structure, good heat dissipation effect and convenient assembly.

Description

Oil-immersed heat-dissipation transformer

Technical Field

The utility model relates to a transformer heat dissipation technical field specifically is an oil-immersed heat dissipation transformer.

Background

The high-frequency transformer generates copper loss and iron loss during operation, and the two losses are finally converted into heat energy, so that an iron core and a winding of the high-frequency transformer generate heat, and the temperature of the high-frequency transformer is increased; in addition, the winding is heated by current, and when the heat of the high-frequency transformer is dissipated to the environment to reach thermal balance, the temperature of each part of the high-frequency transformer is a stable value. If the temperature of each part of the high-frequency transformer exceeds the allowable range for a long time, especially if the oil temperature of the high-frequency transformer is higher than the normal temperature by more than 10 ℃ or the temperature is continuously increased, the insulation of the high-frequency transformer is easily damaged, and the high-frequency transformer is easily broken down by high voltage to cause faults or accidents. Therefore, the allowable temperature of the insulation is not allowed to be exceeded when the transformer is normally operated. The existing transformer is generally passively cooled through the cooling fins arranged on the transformer oil tank frame, however, the structure is easy to deform, the cooling effect is poor, and the operation of the transformer is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an above-mentioned problem to exist among the prior art provides an oil-immersed heat dissipation transformer.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides an oil-immersed heat dissipation transformer, includes the transformer main part and sets up in the outer oil tank frame main part of transformer main part, its characterized in that, oil tank frame main part side enclose the defeated oil pipe that has a plurality of vertical settings, defeated oil pipe cross sectional shape be triangle-shaped, oil tank frame main part on still be equipped with defeated oil pipe intercommunication inlet port and oil outlet, the inlet port set up in oil tank frame main part upper end, the oil outlet set up in oil tank frame main part lower extreme, defeated oil pipe inner wall still be equipped with the heat dissipation tooth of a plurality of even settings.

The utility model discloses a theory of operation: when the transformer works, transformer oil in a transformer oil tank is heated and rises to enter the oil delivery pipe through the oil inlet hole, when the oil enters the oil delivery pipe, the oil can be in contact with the inner wall of the oil delivery pipe and the heat dissipation teeth, the outer wall of the oil delivery pipe effectively dissipates heat, and the triangular oil delivery pipe has the advantages of stability, firmness and pressure resistance. By adopting the structure, compared with the heat dissipation structure of the existing transformer, the structure stability and firmness can be effectively improved, and the heat dissipation effect is good.

In the oil-immersed heat dissipation transformer, the outer wall of the oil delivery pipe is further provided with a plurality of uniformly arranged heat dissipation fins, and the length of each heat dissipation fin is consistent with that of the oil delivery pipe.

In the oil-immersed heat-dissipation transformer, the oil tank frame body and the oil delivery pipe are both made of nano aluminum alloy composite materials.

In the oil-immersed heat-dissipating transformer, the oil tank frame body is divided into a bending part and a plane part, the two sides of the bending part and the plane part are respectively provided with a splicing structure, the bending part is arranged at the corner of the oil tank frame body, and the plane part is arranged at the plane of the oil tank frame body.

In the oil-immersed heat-dissipating transformer, the splicing structure comprises a trapezoidal protrusion, and a convex strip or a groove is arranged on the trapezoidal protrusion.

In the oil-immersed heat-dissipating transformer, a bending angle of the bent oil tank frame main body is 90 °.

In the oil-immersed heat dissipation transformer, the heat dissipation fins on the oil tank frame main body of the planar portion are all vertically arranged relative to the oil tank frame main body.

In the oil-immersed heat-dissipating transformer, a fixing hole is further formed in the center line of the bending portion.

Compared with the prior art, the oil-immersed heat dissipation transformer adopting the technical scheme has the beneficial effects that: the utility model has the advantages of firm structure, good heat dissipation effect and convenient assembly.

Drawings

Fig. 1 is an isometric schematic view of the present invention;

fig. 2 is a plan view of the fuel tank frame body of the present invention;

FIG. 3 is a schematic axial view of the main body of the fuel tank frame of the present invention;

FIG. 4 is a schematic view of an embodiment of the present invention;

fig. 5 is a schematic view of another embodiment of the present invention.

In the figure, 1, a tank frame body; 2. an oil delivery pipe; 3. a heat dissipating fin; 4. a heat dissipating tooth; 5. a fixing hole; 6. a bending section; 7. a planar portion; 8. splicing structures; 9. a trapezoidal protrusion; 10. a convex strip; 11. a groove; 12. a transformer body; 13. an oil inlet hole; 14. an oil outlet.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-5, this oil-immersed heat dissipation transformer includes transformer main body 12 and sets up in the outer oil tank frame main body 1 of transformer main body 12, oil tank frame main body 1 side surround have a plurality of vertical defeated oil pipe 2 that set up, defeated oil pipe 2 cross sectional shape be triangle-shaped, oil tank frame main body 1 on still be equipped with defeated oil pipe 12 intercommunication inlet port 13 and oil outlet 14, inlet port 13 set up in oil tank frame main body 1 upper end, oil outlet 14 set up in oil tank frame main body 1 lower extreme, defeated oil pipe 2 inner wall still be equipped with a plurality of heat dissipation teeth 4 that evenly set up. The fastness that the structure of triangle-shaped promoted greatly.

In a further elaboration, the outer wall of the oil delivery pipe 2 is also provided with a plurality of radiating fins 3 which are uniformly arranged, and the length of each radiating fin 3 is consistent with that of the oil delivery pipe 2. The heat dissipation area is increased, and the heat dissipation efficiency is improved.

In a further detail, the oil tank frame body 1 and the oil delivery pipe 2 are both made of nano aluminum alloy composite materials. 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 electric conduction, heat conduction, wear resistance, corrosion resistance and the like, can be difficultly corroded during sea transportation, has a reinforcing effect far higher than that of micron-sized particles, has good interface bonding strength, has a smaller thermal expansion coefficient than that of micron-sized particles under the same volume fraction, is small in thermal residual stress, high in size stability, and improved in room temperature plasticity and high temperature creep property, and greatly improves the heat dissipation effect of the transformer.

In a further elaboration, each oil conveying pipe 2 is provided with three radiating fins 3, and the cross section of each radiating fin 3 is in a T shape or a 1 shape. The number of the radiating fins 3 can be more than three, and the three radiating fins are the optimal number, so that the distances among the six radiating fins 3 on the two oil pipelines 2 are basically consistent, the oil pipelines are more harmonious and attractive, and the radiating effect is good.

In a further elaboration, the inner wall of the oil delivery pipe 2 is also provided with a plurality of uniformly arranged heat dissipation teeth 4. The heat dissipation area is increased, and the heat dissipation efficiency is improved.

In a further elaboration, the inner wall of the oil delivery pipe 2 and the outer surface of the heat dissipation teeth 4 are provided with corrugated bulges 5. The heat dissipation area is increased, and the heat dissipation efficiency is improved.

In a further elaboration, the oil tank frame main body 1 be divided into a bending portion 6 and a plane portion 7, the two sides of the bending portion 6 and the plane portion 7 are both provided with a splicing structure 8, the bending portion 6 is arranged at a corner of the oil tank frame main body 1, and the plane portion 7 is arranged at a plane of the oil tank frame main body 1. Adopt the modularization setting, can make things convenient for processing and the installation of this oil tank, be fit for mass production simultaneously and come reduction in production cost. Also be equipped with heat radiation structure in the corner of oil tank for the heat dissipation of oil tank is more even, has promoted the radiating effect greatly, has guaranteed the normal operating of transformer. The bent portion 6 may have any angle such as a right angle, an obtuse angle, and an acute angle.

By adopting the structure, the oil tank frame body 1 of the oil-immersed heat-dissipation transformer can be formed into a square shape, a rectangular shape, an oval shape, a triangular shape and the like, and the combination mode is diversified. Fig. 1 is a schematic diagram showing a combination of rectangular solids, fig. 2 is a schematic diagram showing a combination of square shapes, fig. 4 is a schematic diagram showing a combination of triangular shapes, and fig. 5 is a schematic diagram showing a combination of circular shapes.

In further detail, the splicing structure 8 comprises a trapezoidal protrusion 9, and a convex strip 10 or a groove 11 is arranged on the trapezoidal protrusion 9. Trapezoidal arch 9 can increase the welding area of junction, promotes the intensity of junction simultaneously, and sand grip 10 and the cooperation of recess 11 are connected.

In more detail, the bending angle of the bending part 6 of the oil tank frame main body 1 is 90 degrees. The bending part is provided with a round angle.

In more detail, the heat dissipation fins 3 on the tank frame body 1 of the planar portion 7 are all vertically arranged with respect to the tank frame body 1. The space utilization rate is improved, and the heat dissipation is more uniform.

In more detail, a fixing hole 5 is further formed in the center line of the bending portion 6.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the tank frame body 1, the oil delivery pipe 2, the heat radiating fins 3, the heat radiating teeth 4, the fixing holes 5, the bent portions 6, the flat portions 7, the splice structure 8, the trapezoidal protrusion 9, the convex strip 10, the groove 11, the transformer body 12, the oil inlet hole 13, the oil outlet hole 14, and the like are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides an oil-immersed heat dissipation transformer, includes transformer main part (12) and sets up in outer oil tank frame main part (1) of transformer main part (12), its characterized in that, oil tank frame main part (1) side surround defeated oil pipe (2) that have a plurality of vertical settings, defeated oil pipe (2) cross sectional shape be triangle-shaped, oil tank frame main part (1) on still be equipped with inlet port (13) and oil outlet (14) of defeated oil pipe (2) intercommunication, inlet port (13) set up in oil tank frame main part (1) upper end, oil outlet (14) set up in oil tank frame main part (1) lower extreme, defeated oil pipe (2) inner wall still be equipped with a plurality of heat dissipation teeth (4) that evenly set up.

2. The oil-immersed heat-dissipation transformer according to claim 1, wherein the outer wall of the oil delivery pipe (2) is further provided with a plurality of uniformly arranged heat-dissipation fins (3), and the length of each heat-dissipation fin (3) is consistent with that of the oil delivery pipe (2).

3. The oil-immersed heat dissipation transformer of claim 1, wherein the oil tank frame body (1) and the oil delivery pipe (2) are both made of nano aluminum alloy composite materials.

4. An oil-immersed heat-dissipation transformer according to claim 1, wherein the tank frame body (1) is divided into a bending portion (6) and a flat portion (7), the bending portion (6) and the flat portion (7) are provided with splicing structures (8) on both sides, the bending portion (6) is disposed at a corner of the tank frame body (1), and the flat portion (7) is disposed at a plane of the tank frame body (1).

5. An oil-immersed heat-dissipation transformer according to claim 4, wherein the splicing structure (8) comprises trapezoidal protrusions (9), and convex strips (10) or grooves (11) are arranged on the trapezoidal protrusions (9).

6. Oil filled heat dissipation transformer according to claim 4, characterized in that the bending part (6) and the tank frame body (1) are bent at an angle of 90 °.

7. Oil-filled heat-dissipation transformer according to claim 4, characterized in that the heat-dissipation fins (3) on the tank frame body (1) of the planar portion (7) are all arranged vertically with respect to the tank frame body (1).

8. Oil-filled heat-dissipation transformer according to claim 4, characterized in that a fixing hole (5) is further provided at the center line of the bending portion (6).