An oil-immersed power transformer fin

Abstract

The utility model relates to transformer technical field, and disclose an oil -immersed power transformer fin, relate to transformer technical field, aim at solving the problem that traditional fin radiates unevenly, maintenance cost is high and poor adaptability. It includes fixed base, fixed base top and bottom are equipped with mounting seat, surface is equipped with heat dissipation mechanism and auxiliary mechanism, heat dissipation mechanism contains the plug -in slot, built -in radiating fin, the surface of fin integrative staggered arrangement's turbulence protruding, and protruding is gradient distribution along the air flow direction, can break the airflow laminar state, enhance heat exchange efficiency, open the cooling pipe through -going orifice, fixed base both ends are equipped with cooling pipe mounting seat and detachable cooling pipe, front face is equipped with limit mouth, limit board and limit bolt, auxiliary mechanism contains the first, second butt flange of left and right sides, the connecting seat of top and bottom, through the connecting mounting block and mounting bolt in connecting seat and install dust screen, this fin is high, and maintenance cost is low, and adaptability is strong.

Description

Technical Field

[0001] This utility model relates to the field of transformer technology, specifically to a heat sink for an oil-immersed power transformer. Background Technology

[0002] During operation, losses in internal components such as windings and core of oil-immersed power transformers are converted into heat, which is transferred through the transformer oil, causing the temperature of the windings, core, tank walls, and oil surface to rise. This temperature rise directly affects the lifespan of the winding insulation material and must be controlled. As the mainstream heat dissipation device, the heat dissipation efficiency of plate-type radiators is crucial. However, traditional radiators suffer from problems such as uneven oil flow paths and uneven heat dissipation, affecting their cooling effect.

[0003] The heat dissipation fins of existing heat dissipation devices are mostly installed in a fixed manner, and may adopt non-removable structures such as welding or integrated design. This makes it difficult to replace individual fins after they are damaged, requiring overall repair and increasing maintenance costs. Furthermore, it is impossible to flexibly adjust the number or layout of fins according to heat dissipation needs, and the heat dissipation area is fixed, making it difficult to adapt to heat changes under different operating conditions. Utility Model Content

[0004] The purpose of this invention is to provide an oil-immersed power transformer heat sink to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an oil-immersed power transformer heat sink, comprising a fixed base, wherein mounting bases are fixedly connected to the top and bottom left and right ends of the fixed base, a heat dissipation mechanism is provided on the surface of the fixed base, and an auxiliary mechanism is provided on the surface of the fixed base;

[0006] The heat dissipation mechanism includes insertion slots located at the top and bottom of the mounting base. Heat dissipation fins are inserted into the insertion slots, and turbulence-inducing protrusions are fixedly connected to the surface of the heat dissipation fins. Cooling pipe through-holes are also provided on the surface of the heat dissipation fins. Cooling pipe mounting seats are fixedly connected to both ends of the mounting base, and cooling pipes are installed inside the inner ends of the mounting seats. Limiting ports are located at the four corners of the front of the mounting base, and limiting plates are installed at the top and bottom of the front of the mounting base. Limiting bolts are installed on the surface of the limiting plates. The heat dissipation fins are mounted to the mounting base through the insertion slots, which increases the heat dissipation area and accelerates heat transfer. The turbulence-inducing protrusions on the surface are staggered and gradient-distributed along the airflow direction, which can disrupt airflow and prolong air residence time. The cooling pipes, which pass through the cooling pipe inlet and directly contact the heat dissipation fins, enhance the heat exchange efficiency between the air and the fins. Heat can be carried away by the medium inside the pipes, such as cooling oil, achieving dual heat dissipation through "fins + cooling pipes". The limiting plate, secured by limiting bolts and limiting ports, firmly holds the heat dissipation fins, preventing loosening and facilitating easy disassembly. The cooling pipes are designed as detachable structures for easy replacement or cleaning, reducing maintenance costs. This mechanism effectively improves the overall heat dissipation efficiency of the device. Heat dissipation is enhanced through a gradient design of the turbulence protrusions: sparse distribution at the bottom, gradually decreasing spacing in the middle, and dense distribution at the top. This differentiated layout strengthens the turbulence effect in areas with high heat dissipation demand while reducing flow resistance in areas with low demand.

[0007] Preferably, the limiting plate is installed on the top and bottom of the front of the fixing seat by limiting bolts, and the limiting bolts are installed inside the limiting port.

[0008] Preferably, the turbulence protrusions are staggered on the surface of the heat dissipation fins, and the turbulence protrusions are distributed in a gradient along the airflow direction.

[0009] Preferably, the cooling pipe extends through the interior of the cooling pipe inlet, and the cooling pipe is designed to be detachable.

[0010] Preferably, the auxiliary mechanism includes a first docking flange, which is fixedly connected to the top and bottom right side of the fixed seat. A second docking flange is fixedly connected to the top and bottom left side of the fixed seat. Connecting seats are fixedly connected to both the left and right ends of the top and bottom of the fixed seat. A connecting mounting block is installed inside the connecting seat. A dustproof net is fixedly connected to the front of the connecting mounting block. A mounting bolt is installed on the surface of the connecting mounting block. The first and second docking flanges are respectively located on the left and right sides of the fixed seat. When the transformer load increases and heat dissipation needs to be enhanced, additional heat dissipation modules can be quickly spliced ​​through the flanges to improve installation flexibility. The dustproof net is fixed to the connecting seat through the connecting mounting block and the mounting bolt, and covers the front of the fixed seat, which can block dust and debris from entering the heat dissipation mechanism, avoid fins or cooling pipes from being blocked, and maintain heat dissipation efficiency. The dustproof net is connected to the connecting seat through the mounting bolt, and the detachable design facilitates regular cleaning or replacement, ensuring long-lasting protection. The setting of this mechanism enhances the structural adaptability of the device and can effectively protect the internal components from damage.

[0011] Preferably, the dustproof net covers the front of the fixed base, and the connecting mounting block is installed inside the connecting base by mounting bolts.

[0012] Compared with the prior art, this utility model provides an oil-immersed power transformer heat sink, which has the following beneficial effects:

[0013] 1. The oil-immersed power transformer heat sink is equipped with a heat dissipation mechanism. The heat dissipation fins are installed on the fixed base through plug slots, which can increase the heat dissipation area and accelerate heat transfer. The surface turbulence protrusions are staggered and gradient distributed along the air flow direction, which can disturb the airflow, prolong the air residence time, and enhance the heat exchange efficiency between the air and the fins. The cooling pipe passes through the cooling pipe penetration and is in direct contact with the heat dissipation fins. Heat can be carried away by the medium inside the pipe, such as cooling oil, to achieve dual heat dissipation of "fins + cooling pipe". The limiting plate is fixed by the limiting bolt and the limiting port, which can stabilize the heat dissipation fins, prevent loosening, and is easy to disassemble. The cooling pipe is designed as a detachable structure, which is convenient for individual replacement or cleaning, reducing maintenance costs. The setting of this mechanism can effectively improve the overall heat dissipation efficiency of the device. The heat dissipation is enhanced by the height gradient design of the turbulence protrusions. The bottom is sparsely distributed, the middle gradually reduces the spacing, and the top is densely distributed. Through differentiated layout, the disturbance effect is enhanced in the high heat dissipation demand area, while reducing the flow resistance in the low demand area.

[0014] 2. The oil-immersed power transformer heat sink is equipped with an auxiliary mechanism. The first and second docking flanges are respectively located on the left and right sides of the fixed base. When the transformer load increases and heat dissipation needs to be enhanced, additional heat dissipation modules can be quickly spliced ​​through the flanges to improve installation flexibility. The dustproof net is fixed to the connecting base by connecting mounting blocks and mounting bolts, and covers the front of the fixed base. It can prevent dust and debris from entering the heat dissipation mechanism, avoid clogging of fins or cooling pipes, and maintain heat dissipation efficiency. The dustproof net is connected to the connecting base by mounting bolts. The detachable design makes it convenient for regular cleaning or replacement, ensuring long-lasting protection. The setting of this mechanism enhances the structural adaptability of the device and can effectively protect the internal components from damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the heat dissipation mechanism of this utility model.

[0018] Figure 3 This is a schematic diagram of the heat dissipation fins of this utility model.

[0019] Figure 4 This is a schematic diagram of the auxiliary structure of this utility model.

[0020] In the diagram: 1. Fixed base; 2. Mounting base; 3. Heat dissipation mechanism; 31. Insertion slot; 32. Heat dissipation fins; 33. Turbidity protrusion; 34. Cooling pipe through-hole; 35. Cooling pipe mounting base; 36. Cooling pipe; 37. Limiting port; 38. Limiting plate; 39. Limiting bolt; 4. Auxiliary mechanism; 41. First mating flange; 42. Second mating flange; 43. Connecting base; 44. Dustproof net; 45. Connecting mounting block; 46. Mounting bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] This utility model provides the following technical solution:

[0024] Example 1

[0025] Please see Figure 1-4 A heat sink for an oil-immersed power transformer includes a fixed base 1, with mounting bases 2 fixedly connected to the top and bottom left and right ends of the fixed base 1, a heat dissipation mechanism 3 provided on the surface of the fixed base 1, and an auxiliary mechanism 4 provided on the surface of the fixed base 1.

[0026] The heat dissipation mechanism 3 includes a plug-in slot 31, which is located at the top and bottom of the fixed base 1. Heat dissipation fins 32 are inserted into the plug-in slot 31. Turbulence protrusions 33 are fixedly connected to the surface of the heat dissipation fins 32. Cooling pipe through-holes 34 are provided on the surface of the heat dissipation fins 32. Cooling pipe mounting seats 35 are fixedly connected to both ends of the fixed base 1. Cooling pipes 36 are installed inside the inner ends of the cooling pipe mounting seats 35. Limiting holes 37 are provided at the four corners of the front of the fixed base 1. Limiting plates 38 are installed at the top and bottom of the front of the fixed base 1. Limiting bolts 39 are installed on the surface of the limiting plates 38. The heat dissipation fins 32 are installed on the fixed base 1 through the plug-in slot 31, which increases the heat dissipation area and accelerates heat transfer. The turbulence protrusions 33 on the surface are staggered and gradient-distributed along the airflow direction, which can disrupt airflow and prolong air circulation. Allowing time for heat exchange between air and fins, the cooling pipe 36 passes through the cooling pipe through-hole 34 and directly contacts the heat dissipation fins 32. Heat can be carried away by the medium inside the pipe, such as cooling oil, achieving dual heat dissipation of "fins + cooling pipe". The limiting plate 38 is fixed by the limiting bolt 39 and the limiting port 37, which can stabilize the heat dissipation fins 32, prevent loosening, and facilitate disassembly. The cooling pipe 36 is designed as a detachable structure, which is convenient for individual replacement or cleaning, reducing maintenance costs. The setting of this mechanism can effectively improve the overall heat dissipation efficiency of the device. The heat dissipation is enhanced by the height gradient design of the turbulence protrusions 33. The bottom is sparsely distributed, the middle gradually reduces the spacing, and the top is densely distributed. Through differentiated layout, the turbulence effect is enhanced in the high heat dissipation demand area, while reducing the flow resistance in the low demand area.

[0027] The limiting plate 38 is installed on the top and bottom of the front of the fixed base 1 by the limiting bolt 39, and the limiting bolt 39 is installed inside the limiting port 37;

[0028] The turbulence protrusions 33 are staggered on the surface of the heat dissipation fins 32, and the turbulence protrusions 33 are distributed in a gradient along the airflow direction;

[0029] Cooling pipe 36 runs through the inside of cooling pipe through-hole 34 and is designed to be detachable.

[0030] Example 2

[0031] Please see Figure 1-4 Furthermore, based on Embodiment 1, the auxiliary mechanism 4 includes a first docking flange 41, which is fixedly connected to the top and bottom right side of the fixed base 1. A second docking flange 42 is fixedly connected to the top and bottom left side of the fixed base 1. Connecting seats 43 are fixedly connected to both the left and right ends of the top and bottom of the fixed base 1. Connecting mounting blocks 45 are installed inside the connecting seats 43. A dustproof net 44 is fixedly connected to the front of the connecting mounting blocks 45. Mounting bolts 46 are installed on the surface of the connecting mounting blocks 45. The first docking flange 41 and the second docking flange 42 are respectively located on the left and right sides of the fixed base 1. On the other hand, when the transformer load increases and heat dissipation needs to be enhanced, additional heat dissipation modules can be quickly spliced ​​through flanges to improve installation flexibility. The dustproof net 44 is fixed to the connecting seat 43 by connecting mounting block 45 and mounting bolt 46, and covers the front of the fixing seat 1. It can block dust and debris from entering the heat dissipation mechanism 3, prevent the fins or cooling pipes from being blocked, and maintain heat dissipation efficiency. The dustproof net 44 is connected to the connecting seat 43 by mounting bolt 46. The detachable design makes it convenient to clean or replace it regularly, ensuring long-lasting protection. The setting of this mechanism enhances the structural adaptability of the device and can effectively protect the internal components from damage.

[0032] A dustproof net 44 covers the front of the fixed base 1, and the connecting mounting block 45 is installed inside the connecting base 43 by a mounting bolt 46.

[0033] In actual operation, when this device is in use, the various components are installed in an orderly manner on the surface of the mounting base 1. Then, the device can be fixed to the surface of the transformer for operation via the mounting base 2. The heat dissipation fins 32 are installed on the mounting base 1 through the insertion slots 31, which can increase the heat dissipation area and accelerate heat transfer. The turbulence protrusions 33 on the surface are staggered and gradient distributed along the airflow direction, which can disrupt the airflow, prolong the air residence time, and enhance the heat exchange efficiency between the air and the fins. The cooling pipe 36 passes through the cooling pipe through-hole 34 and is in direct contact with the heat dissipation fins 32. Heat can be carried away by the medium inside the pipe, such as cooling oil. The device achieves dual heat dissipation through "fins + cooling pipes". The limiting plate 38 is fixed by the limiting bolt 39 and the limiting port 37, which can stabilize the heat dissipation fins 32, prevent loosening, and facilitate disassembly. The cooling pipe 36 is designed as a detachable structure, which is convenient for individual replacement or cleaning, reducing maintenance costs. The setting of this mechanism can effectively improve the overall heat dissipation efficiency of the device. The heat dissipation is enhanced by the height gradient design of the turbulence protrusions 33. The bottom is sparsely distributed, the spacing gradually decreases in the middle, and the top is densely distributed. Through differentiated layout, the turbulence effect is enhanced in the high heat dissipation demand area, while reducing the flow resistance in the low demand area.

[0034] The first connecting flange 41 and the second connecting flange 42 are respectively set on the left and right sides of the fixed base 1. When the transformer load increases and heat dissipation needs to be enhanced, additional heat dissipation modules can be quickly spliced ​​through the flanges to improve installation flexibility. The dustproof net 44 is fixed to the connecting base 43 by connecting mounting block 45 and mounting bolt 46, and covers the front of the fixed base 1. It can block dust and debris from entering the heat dissipation mechanism 3, avoid fins or cooling pipes from being blocked, and maintain heat dissipation efficiency. The dustproof net 44 is connected to the connecting base 43 by mounting bolt 46. The detachable design makes it convenient to clean or replace it regularly, ensuring long-lasting protection. The setting of this mechanism enhances the structural adaptability of the device and can effectively protect the internal components from damage.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A heat sink for an oil-immersed power transformer, comprising a mounting base (1), characterized in that: The top and bottom left and right ends of the fixed base (1) are fixedly connected to the mounting base (2), the surface of the fixed base (1) is provided with a heat dissipation mechanism (3), and the surface of the fixed base (1) is provided with an auxiliary mechanism (4). The heat dissipation mechanism (3) includes a plug groove (31), which is opened at the top and bottom of the fixed base (1). A heat dissipation fin (32) is inserted into the plug groove (31). A turbulence protrusion (33) is fixedly connected to the surface of the heat dissipation fin (32). A cooling pipe through-hole (34) is opened on the surface of the heat dissipation fin (32). A cooling pipe mounting seat (35) is fixedly connected to the left and right ends of the fixed base (1). A cooling pipe (36) is installed inside the cooling pipe mounting seat (35). A limit port (37) is opened at the four corners of the front of the fixed base (1). A limit plate (38) is installed at the top and bottom of the front of the fixed base (1). A limit bolt (39) is installed on the surface of the limit plate (38).

2. The oil-immersed power transformer heat sink according to claim 1, characterized in that: The limiting plate (38) is installed on the top and bottom of the front of the fixed base (1) by the limiting bolt (39), and the limiting bolt (39) is installed inside the limiting port (37).

3. The oil-immersed power transformer heat sink according to claim 1, characterized in that: The turbulence protrusions (33) are staggered on the surface of the heat dissipation fins (32), and the turbulence protrusions (33) are distributed in a gradient along the airflow direction.

4. The oil-immersed power transformer heat sink according to claim 1, characterized in that: The cooling pipe (36) extends through the cooling pipe inlet (34) and is designed to be detachable.

5. The oil-immersed power transformer heat sink according to claim 1, characterized in that: The auxiliary mechanism (4) includes a first docking flange (41), which is fixedly connected to the top and bottom right side of the fixed seat (1). A second docking flange (42) is fixedly connected to the top and bottom left side of the fixed seat (1). Connecting seats (43) are fixedly connected to both the top and bottom left and right ends of the fixed seat (1). A connecting mounting block (45) is installed inside the connecting seat (43). A dustproof net (44) is fixedly connected to the front of the connecting mounting block (45). A mounting bolt (46) is installed on the surface of the connecting mounting block (45).

6. The oil-immersed power transformer heat sink according to claim 5, characterized in that: The dustproof net (44) covers the front of the fixed base (1), and the connecting mounting block (45) is installed inside the connecting base (43) by the mounting bolt (46).

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