A full-immersion evaporative cooling transformer heat dissipation structure

Abstract

The application provides a full-immersion type evaporative cooling transformer heat dissipation structure, which comprises a box body, an elastic pressing plate assembly and a heat dissipation piece. During assembly, the elastic pressing plate assembly is first fixedly installed on the outer wall of the box body, and then the mounting plate of the heat dissipation piece is inserted from one side to the space between the elastic pressing plate assembly and the outer wall of the box body. The mounting plate is assembled with the box body under the elastic force of the elastic pressing plate assembly. Compared with the welding method in the prior art, the plug-in method is more convenient and faster in disassembly and assembly, the production efficiency is improved, and only one person is needed to complete the above assembly process, thereby reducing the labor cost. In addition, the elastic pressing plate assembly, the heat dissipation piece and the transformer box body can be packaged and transported separately, so that the occupied space is small, and the transportation cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer, in particular to a full-immersion evaporative cooling transformer heat dissipation structure. BACKGROUND

[0002] Heat dissipation has always been a key technology of transformer, and the traditional oil-immersed transformer generally uses mineral oil as insulation and cooling medium, but its viscosity is large, the heat conduction performance is insufficient, the flash point is low, and it cannot be used in places with high fire and explosion prevention requirements, and because it is difficult to degrade, it cannot meet the environmental protection requirements

[0003] In order to solve the above problems, people will weld a plurality of heat dissipation plates which are arranged at intervals and extend outward on the outer wall of the transformer tank. The heat in the transformer is transferred to the heat dissipation plates through the tank wall to cool the transformer. Because the gap between the two adjacent heat dissipation plates is small, it is not conducive to the welding tool to extend into the space between the two heat dissipation plates for welding, making the welding difficult, and when welding, two people are needed to cooperate, one person places the heat dissipation plate on the outer wall of the tank and keeps the heat dissipation plate perpendicular to the tank wall, and the other person welds the heat dissipation plate on the outer wall of the tank. This not only reduces the welding efficiency, but also increases the labor cost. In addition, since the heat dissipation plate has been installed on the transformer before leaving the factory, the overall volume of the transformer is increased, the space occupation is large, and the logistics cost is increased. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to overcome the defects of the prior art that the heat dissipation plate is welded, resulting in low welding efficiency and high logistics cost, thereby providing a full-immersion evaporative cooling transformer heat dissipation structure with high assembly efficiency.

[0005] To this end, the present application provides a full-immersion evaporative cooling transformer heat dissipation structure, comprising a tank body, an elastic pressing plate assembly and a heat dissipation piece, a plurality of elastic pressing plate assemblies are detachably installed on the outer wall of the tank body; a plurality of heat dissipation pieces have a mounting plate and a heat dissipation plate connected by bending, the mounting plate is adapted to be inserted between the elastic pressing plate assembly and the outer wall of the tank body, and is assembled with the tank body under the elastic force of the elastic pressing plate assembly, and the heat dissipation plate extends outwardly towards the tank body.

[0006] The heat dissipation piece has two, and the mounting plates of the two heat dissipation pieces are respectively inserted from both sides of the elastic pressing plate assembly in the width direction.

[0007] The elastic pressing plate assembly comprises an elastic pressing plate and a fastening assembly, a plurality of fastening assemblies are arranged at intervals along the length direction of the elastic pressing plate, and are adapted to assemble the elastic pressing plate with the tank body.

[0008] The front end of the elastic pressing plate in the insertion direction of the mounting plate is provided with a chamfer.

[0009] The cross section of the elastic pressing plate is a rectangular frame.

[0010] The fastening assembly comprises a bolt and a nut, the head of the bolt on one side abuts against the elastic pressing plate, and the screw rod on the other side penetrates through the first penetrating hole of the elastic pressing plate and is threadedly connected with the nut.

[0011] The nut is welded on the outer wall of the box.

[0012] The side of the elastic pressing plate facing the outer wall of the box is formed with a second penetrating hole matching the outer shape of the nut, and the thickness of the elastic pressing plate is greater than the thickness of the nut.

[0013] The mounting plate is formed with a plurality of nut half-holes matching the outer shape of the nut.

[0014] The heat dissipation piece is encapsulated with phase change material or water.

[0015] The technical scheme of the present application has the following advantages:

[0016] 1. The full-immersion evaporative cooling transformer heat dissipation structure provided by the present application comprises a box, an elastic pressing plate assembly and a heat dissipation piece, in assembly, the elastic pressing plate assembly is first fixedly installed on the outer wall of the box, and then the mounting plate of the heat dissipation piece is inserted from one side to the space between the elastic pressing plate assembly and the outer wall of the box, and the mounting plate is assembled with the box under the elastic force of the elastic pressing plate assembly, compared with the welding method of the prior art, the plug-in method is more convenient and fast in disassembly, the production efficiency is improved, and only one person is needed to complete the above assembly process, thereby reducing the labor cost; in addition, since the elastic pressing plate assembly, the heat dissipation piece and the transformer box can be packaged and transported separately, the occupied space is small, and the transportation cost is reduced.

[0017] 2. The full-immersion evaporative cooling transformer heat dissipation structure provided by the present application, the heat dissipation piece has two, the mounting plates of the two heat dissipation pieces are respectively inserted from the two sides of the width direction of the elastic pressing plate assembly, that is, one set of elastic pressing plate assembly can install two heat dissipation pieces, so that the assembly efficiency is improved, and the number of elastic pressing plate assemblies is saved under the condition of installing the same number of heat dissipation pieces as the prior art, thereby reducing the cost.

[0018] 3. The full-immersion evaporative cooling transformer heat dissipation structure provided by the present application, the front end of the elastic pressing plate in the insertion direction of the mounting plate is provided with a chamfer, so that the mounting plate is guided and inserted along the chamfer, and the assembly efficiency is improved.

[0019] 4. The full-immersion evaporative cooling transformer heat dissipation structure provided by the present application, the nut is welded on the outer wall of the box, so that compared with the method of punching holes on the box and possibly causing oil leakage of the oil tank, the safety and reliability are higher.

[0020] 5. In the heat dissipation structure of the fully immersed evaporative cooling transformer provided by the present invention, a second through-hole adapted to the shape of the nut is formed on the side of the elastic pressure plate facing the outer wall of the box body, and the thickness of the elastic pressure plate is greater than the thickness of the nut, so that a small gap can be ensured between the elastic pressure plate and the outer wall of the box body for the installation plate of the heat dissipation component to be inserted.

[0021] 6. The heat dissipation structure of the fully immersed evaporative cooling transformer provided by the present invention has a plurality of nut half holes formed on the mounting plate that are adapted to the shape of the corresponding nuts. In this way, on the one hand, the nuts welded on the outer wall of the box have a certain limiting effect on the mounting plate, and the assembly is more secure. On the other hand, the part of the outer wall of the box except the nuts is in contact with the mounting plate, which increases the contact area with the heat dissipation component, thereby being more conducive to rapid heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A three-dimensional diagram of the heat dissipation structure of a fully immersed evaporative cooling transformer according to the present invention;

[0024] Figure 2 for Figure 1 A top view of

[0025] Figure 3 for Figure 1 The main view;

[0026] Figure 4 It is an assembly perspective view of the elastic pressure plate assembly and two heat sinks;

[0027] Figure 5 for Figure 4 Right view of;

[0028] Figure 6 for Figure 4 A top view of

[0029] Figure 7 for Figure 6 Schematic diagram of a partially enlarged structure.

[0030] Explanation of the accompanying drawings: 1. Box body; 2. Heat sink; 21. Mounting plate; 22. Heat sink; 3. Elastic pressure plate; 30. Chamfer; 31. First through-hole; 32. Second through-hole; 4. Bolt; 5. Nut. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0035] Embodiment

[0036] The present embodiment provides a full-immersion evaporative cooling transformer heat dissipation structure, as shown in Figures 1-3 , which comprises a box body 1, an elastic pressing plate assembly and a heat dissipation piece 2.

[0037] The box body 1 has a triangular cross section.

[0038] The elastic pressing plate assembly has multiple groups and is detachably and spacedly distributed on the outer wall of the box body 1. The elastic pressing plate assembly comprises an elastic pressing plate 3 and multiple fastening assemblies.

[0039] The elastic pressing plate 3, as shown in Figure 6 and 7As shown, the front end of the elastic pressing plate 3 along the insertion direction of the mounting plate 21 is provided with a chamfer 30, and the cross section of the elastic pressing plate 3 is a rectangular frame, thus having a certain elasticity. The side of the elastic pressing plate 3 facing the outer wall of the box 1 is formed with a second through hole 32, and the other side is formed with a first through hole 31. In this embodiment, the elastic pressing plate 3 is a metal frame, such as iron, steel, aluminum alloy, etc.

[0040] A plurality of fastening components are arranged at intervals along the length direction of the elastic pressing plate 3 (i.e. the height direction of the outer wall of the transformer box 1), and are suitable for assembling the elastic pressing plate 3 and the box 1. As shown, Figure 6 and 7 The fastening component includes a bolt 4 and a nut 5. The head of one side of the bolt 4 abuts against the elastic pressing plate 3, and the screw rod of the other side of the bolt 4 passes through the first through hole 31 of the elastic pressing plate 3 and is threadedly connected with the nut 5. In this embodiment, the nut 5 is welded to the outer wall of the box 1, the second through hole 32 is shaped to match the nut 5, and the thickness of the elastic pressing plate 3 is greater than the thickness of the nut 5.

[0041] A plurality of heat dissipation members 2, as shown, Figures 4-7 have a mounting plate 21 and a heat dissipation plate 22 integrally connected and bent in an L shape. The mounting plate 21 is suitable for being inserted between the elastic pressing plate assembly and the outer wall of the box 1, and is assembled with the box 1 under the elastic force of the elastic pressing plate assembly. A plurality of nut half holes matching the shape of the nut 5 are formed on the mounting plate 21, and the heat dissipation plate 22 extends towards the outside of the box 1. There are two heat dissipation members 2, and the mounting plates 21 of the two heat dissipation members 2 are respectively inserted from the two sides of the width direction of the elastic pressing plate assembly. In this embodiment, the heat dissipation member 2 is made of aluminum material, which can be solid or hollow, and is encapsulated with phase change material or water. The phase change material can be fluorocarbon compound or other evaporative cooling medium.

[0042] As a convertible embodiment, the mounting plate 21 can also be attached to the outer wall of the box 1 by metal adhesive.

[0043] As a convertible embodiment, the shape of the box 1 can be cylindrical, equilateral polygonal or irregular polygonal, and the structure of the transformer core can be planar laminated core, three-dimensional wound core, etc.

[0044] In this embodiment, the transformer can be a single-phase transformer or a three-phase transformer.

[0045] The full immersion type evaporative cooling transformer heat dissipation structure provided by the application comprises a box body 1, an elastic pressing plate assembly and a heat dissipation piece 2; during assembly, the elastic pressing plate assembly is first fixedly installed on the outer wall 1 of the box body, and then the mounting plate 21 of the heat dissipation piece 2 is inserted from one side to the space between the elastic pressing plate assembly and the outer wall of the box body 1; the mounting plate 21 is assembled with the box body 1 under the elastic force of the elastic pressing plate assembly; compared with the welding method of the prior art, the plug-in method is more convenient and fast in disassembly and assembly, the production efficiency is improved, and only one person is needed to complete the above assembly process, thereby reducing the labor cost; in addition, the elastic pressing plate assembly, the heat dissipation piece 2 and the transformer box body 1 can be packaged and transported separately, so that the occupied space is small, and the transportation cost is reduced.

[0046] Obviously, the above embodiments are only examples for clearly illustrating the application, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. All the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the application.

Claims

1. A full-immersion evaporative cooling transformer cooling structure, characterized by, The utility model relates to a full-immersion type evaporative cooling transformer heat dissipation structure, comprising: a box (1); a plurality of elastic pressing plate assemblies, which are detachably mounted on the outer wall of the box (1); a plurality of heat dissipation pieces (2) having a bent connecting mounting plate (21) and a heat dissipation plate (22), the mounting plate (21) being adapted to be inserted between the elastic pressing plate assembly and the outer wall of the box (1) and assembled with the box (1) under the elastic force of the elastic pressing plate assembly, and the heat dissipation plate (22) extending outwardly towards the box (1); when the full-immersion type evaporative cooling transformer heat dissipation structure is assembled, the elastic pressing plate assembly is first fixedly mounted on the outer wall of the box (1), and then the mounting plate (21) of the heat dissipation piece (2) is inserted from one side between the elastic pressing plate assembly and the outer wall of the box (1); the heat dissipation piece (2) has two mounting plates (21) which are respectively inserted from the two sides corresponding to the width direction of the elastic pressing plate assembly; the elastic pressing plate assembly comprises an elastic pressing plate (3), and the cross section of the elastic pressing plate (3) is a rectangular frame.

2. The full-immersion evaporative cooling transformer cooling structure of claim 1, wherein, the elastic pressing plate assembly further comprises: a plurality of fastening assemblies which are arranged at intervals along the length direction of the elastic pressing plate (3) and are adapted to assemble the elastic pressing plate (3) with the box (1).

3. The full-immersion evaporative cooling transformer cooling structure of claim 2, wherein, the elastic pressing plate (3) is provided with a chamfer (30) at the front end in the insertion direction of the mounting plate (21).

4. The full-immersion evaporative cooling transformer cooling structure of claim 2, wherein, the fastening assembly comprises a bolt (4) and a nut (5), the head of one side of the bolt (4) abuts against the elastic pressing plate (3), and the screw rod of the other side of the bolt (4) passes through the first perforation (31) of the elastic pressing plate (3) and is threadedly connected with the nut (5).

5. The full-immersion evaporative cooling transformer cooling structure of claim 4, wherein, the nut (5) is welded on the outer wall of the box (1).

6. The full-immersion evaporative cooling transformer cooling structure of claim 5, wherein, the side of the elastic pressing plate (3) facing the outer wall of the box (1) is formed with a second perforation (32) matching the outer shape of the nut (5), and the thickness of the elastic pressing plate (3) is greater than the thickness of the nut (5).

7. The full-immersion evaporative cooling transformer cooling structure of claim 5 or 6, wherein, a plurality of nut half-holes matching the outer shape of the nut (5) are formed on the mounting plate (21).

8. The fully immersed evaporative cooling transformer cooling structure of claim 1, wherein, the heat dissipation piece (2) is encapsulated with phase change material.

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