CN116798742B - Transformer heat abstractor - Google Patents
Transformer heat abstractor Download PDFInfo
- Publication number
- CN116798742B CN116798742B CN202310955951.3A CN202310955951A CN116798742B CN 116798742 B CN116798742 B CN 116798742B CN 202310955951 A CN202310955951 A CN 202310955951A CN 116798742 B CN116798742 B CN 116798742B
- Authority
- CN
- China
- Prior art keywords
- heat
- heat conducting
- transformer
- conducting rod
- radiator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007788 liquid Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 60
- 230000000694 effects Effects 0.000 description 16
- 238000009434 installation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/18—Liquid cooling by evaporating liquids
Abstract
The invention relates to a transformer heat dissipation device, and belongs to the technical field of transformers. The transformer comprises a transformer body, a heat conducting rod, a plurality of heat radiating strips and a radiator, wherein the heat conducting rod is arranged on the inner top surface of the transformer body, one end of the heat conducting rod is positioned outside the transformer body, the plurality of heat radiating strips are circumferentially arranged on the outer surface of a heat conducting rod pipe, and the radiator is arranged on the top surface of the heat conducting rod and positioned outside the transformer body.
Description
Technical Field
The invention belongs to the technical field of transformers, and particularly relates to a transformer heat dissipation device.
Background
The transformer operates with some power losses, such as wire losses, core losses, and parasitic losses. These losses are dissipated to the surroundings in the form of heat and raise the temperature of the various parts of the transformer.
Current self-cooled liquid insulation transformers rely on radiation from the tank wall (or radiator tube wall) and natural convection from the air surrounding the transformer to carry heat away from the tank surface. Thus, the heat dissipation effect depends on the metal area of such a transformer tank. In order to increase the heat dissipation surface, some of the walls of the transformer are corrugated, some of the walls are welded to the tubes, and some of the walls are provided with heat sinks to promote convection of oil. And because the insulating oil is adopted to dissipate heat, a large amount of heat emitted by the transformer can cause heat in the transformer to be accumulated at the top of the transformer due to benard convection.
Since the loss of a transformer is proportional to its volume, as the capacity of the transformer increases, its volume and loss will increase to the third power of the core size, while the outer surface area increases only to the second power of the size.
Therefore, when the capacity of the transformer is increased, a larger-capacity transformer needs to be designed to complete matching, but the larger-capacity transformer needs to have a larger heat dissipation area, so that the volume of the transformer box needs to be increased to obtain a larger heat dissipation area, and meanwhile, a larger heat dissipation fin is needed to dissipate heat.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a transformer heat dissipation device, which solves the problem of low heat dissipation efficiency of the existing transformer under the condition of increased volume.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a transformer heat abstractor, includes transformer body, heat conduction pole, a plurality of heat dissipation strip and radiator, the heat conduction pole is installed in the interior top surface of transformer body, and its one end is located the transformer body outward, a plurality of heat dissipation strip circumference is arranged in the surface of heat conduction pole pipe, the radiator is installed in the top surface of heat conduction pole and is located the transformer body outward.
As a preferable technical scheme of the invention, the top surface of the heat conducting rod is provided with a plurality of mounting holes, and the bottom of the radiator is arranged in the mounting holes.
As a preferable technical scheme of the invention, the radiator comprises radiating fins and a heat conducting pipe, wherein the heat conducting pipe is arranged on the top surface of the heat conducting rod, the heat conducting pipe is a hollow pipe with two closed ends, a sealing chamber is arranged in the heat conducting pipe, a refrigerant is filled in the sealing chamber plug, the radiating fins are arranged on the top of the heat conducting pipe, and the refrigerant in the sealing chamber is converted into a gas state from liquid after absorbing heat.
As a preferable technical scheme of the invention, the radiating fin is a star-shaped finned tube, a through hole is formed in the middle of the radiating fin, and the through hole is positioned above the heat conducting rod.
As a preferable technical scheme of the invention, at least three heat sinks are provided, and each heat sink is uniformly arranged on the top surface of the heat conducting rod.
As a preferred embodiment of the present invention, the heat sink is made of an aluminum profile, and the heat pipe is made of copper.
As a preferable technical scheme of the invention, a connecting block is arranged at the joint of the radiator and the heat conducting rod, the side wall of the connecting block is a tile thread, and the connecting block is in threaded connection with the heat conducting rod.
As a preferable technical scheme of the invention, a sealing block is arranged at the joint of the radiator and the heat conducting rod, and the connecting block is in sealing connection with the heat conducting rod.
As a preferable technical scheme of the invention, a plurality of grooves are formed in the circumference of the outer side wall of one end of the heat conducting pipe, which is positioned in the heat conducting rod.
As a preferable technical scheme of the invention, one end of the heat conducting rod, which is positioned in the transformer body, is positioned above the iron core winding in the transformer body and is immersed in insulating liquid.
The beneficial effects of the invention are as follows:
1. the heat dissipation structure comprises a transformer body, a heat conducting rod, a plurality of heat dissipation fins, a radiator and a radiator, wherein the heat conducting rod and the plurality of heat dissipation fins are arranged on the top surface of the transformer body;
2. the heat in the transformer is radiated by the refrigerant in the heat conducting pipe in the radiator through the radiating fin, and the radiating effect is further enhanced by the smoke through effect formed by the through hole arranged in the middle of the heat conducting pipe, and meanwhile, the occupied area of the transformer is not increased while the radiating effect is enhanced by the installation of the radiator.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of a heat sink according to the present invention;
FIG. 4 is an enlarged view at A of FIG. 3;
FIG. 5 is a schematic view of a heat dissipating strip according to the present invention;
description of the main reference signs
In the figure: 1. a transformer body; 2. a heat conduction rod; 21. a mounting hole; 3. a heat dissipation strip; 4. a heat sink; 41. a heat sink; 411. a through hole; 42. a heat conduction pipe; 421. a groove; 5. and (5) connecting a block.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-5, the present embodiment provides a heat dissipating device for a transformer, including a transformer body 1, a heat conducting rod 2, a plurality of heat dissipating strips 3 and a heat sink 4, wherein the heat conducting rod 2 is mounted on the top surface of the transformer body 1, one end of the heat conducting rod is located outside the transformer body 1, the plurality of heat dissipating strips 3 are circumferentially arranged on the outer surface of the heat conducting rod 2, the heat sink 4 is mounted on the top surface of the heat conducting rod 2, when the transformer is operated, generated heat is brought to the inner top of the transformer body 1 by insulating oil, the heat is transferred to the heat dissipating strips 3 through the heat conducting rod 2, and the heat dissipating strips 3 are abutted against the top surface of the transformer body 1 to dissipate heat, and meanwhile, the heat in the heat conducting rod 2 is also dissipated by the heat sink 4, so as to improve the heat dissipating effect and complete the heat dissipation of the transformer.
A transformer is a stationary electrical device that converts ac power of one voltage class into ac power of another voltage class using the principle of electromagnetic induction. The transformer operates with some power losses, such as wire losses, core losses, and parasitic losses. These losses are dissipated to the surroundings in the form of heat and raise the temperature of the various parts of the transformer. The core and windings transfer heat first to the insulating liquid in their vicinity, causing the temperature of the insulating liquid to rise. The insulating liquid having a high temperature increases in volume and decreases in specific gravity, and moves toward the upper portion of the oil tank. The cold insulating liquid supplements the natural motion to the original location of the hot insulating liquid. The heat insulating liquid discharges heat along the tank wall or the radiator 4 pipe, is taken away by surrounding air through the tank wall or the pipe wall, and returns to the lower part of the transformer tank body to participate in circulation after the temperature is reduced. Thus, due to the difference in the temperature of the insulating liquid, a natural circulation flow of oil is generated, namely: the heat insulating liquid flows downwards from the upper part of the transformer tank along the inner surface of the radiator 4 (along the tank wall without the radiator 4), heat is transferred to air (wind) through the pipe wall or the tank wall in the downward flow process, the cooled insulating liquid enters the transformer tank body from the lower part of the radiator 4, then rises through each channel, heat of the coil and the iron core is taken away in the rising process, and the heat insulating liquid is gathered at the upper part of the transformer tank, so that the heat insulating liquid is circulated repeatedly. Since the transformer has a loss proportional to its volume, as the transformer increases in capacity, its volume and loss will increase to the third power of the core size, while the outer surface area increases only to the second power of the size. Therefore, when the transformer is subjected to capacity expansion, more heat dissipation area needs to be increased to achieve heat dissipation, the appearance of the whole transformer can become abnormally huge, the weight can be greatly increased, the transportation and installation of the transformer can be caused, moreover, the heat dissipation area is increased, the volume and the weight of the radiating fins can be increased, the radiating fins are required to be installed more firmly when being installed on a transformer oil tank, oil leakage of the radiating fins is prevented, meanwhile, the heat dissipation area of the radiating fins is increased, the distance from the outermost end of the whole radiating fins to the surface of the oil tank is increased, wind cannot blow to the root of the radiating fins, heat is easily accumulated at the root of the radiating fins, the heat at the root of the radiating fins is much higher than that at the outside, and the radiating fins are easily influenced under long-time accumulation.
In order to solve the above problems, the heat dissipation strip 3 is mounted on the inner top surface of the transformer body 1, and heat generated by the transformer is transferred to the heat dissipation strip 3 through the heat conducting rod 2 to accomplish heat dissipation, and most of the heat generated by the transformer is accumulated on the inner top of the transformer body 1, so that the heat conducting rod 2 mounted on the inner top surface of the transformer body 1 can transfer the heat to the heat dissipation strip 3 to accomplish heat dissipation better, meanwhile, the heat dissipation can be enhanced by the heat dissipation device 4 mounted on the top surface of the heat conducting tube 42, the heat dissipation of the transformer can be accomplished by placing the heat dissipation structure of the transformer on the inner top surface, the occupied area of the transformer is not increased, and the heat generated by the transformer is not accumulated outside the transformer box body due to the increase of the volume of the transformer, so that the situation that the heat dissipation efficiency of the transformer is low due to long-time heat accumulation is avoided, the heat dissipation effect of the transformer is not affected when the heat dissipation structure is placed on the inner top surface of the transformer to dissipate heat, the whole structure of the transformer is greatly reduced, the weight is reduced, the transformer is transported and a series of problems caused by installation are avoided.
In order to further enhance the heat dissipation effect of the heat dissipation device 4, in this embodiment, the top surface of the heat conduction rod 2 is provided with a plurality of mounting holes 21, the bottom of the heat dissipation device 4 is mounted in the mounting holes 21, if the existing heat dissipation device 4 does not meet the heat generated during the high-frequency operation of the transformer during the heat dissipation, a plurality of heat dissipation devices 4 can be mounted on the top surface of the heat conduction rod 2 to dissipate the heat so as to meet the heat dissipation requirement of the transformer, and in the normal use process, the transformer usually works under the rated load continuously, but when some electric power has peak load, the transformer needs to bear higher load operation. In these cases, the transformer will operate under conditions exceeding the rated load, which is referred to as high load operation. The high load operation may cause the temperature rise of the transformer and increase the thermal load, so that when the transformer operating normally in some remote areas can meet the power demand, a plurality of radiators 4 are not needed to be additionally arranged for radiating, thus the use cost of the transformer can be reduced, and when the power demand in some large cities or factories tends to occur in a peak load period of the power system, the plurality of radiators 4 can be additionally arranged for radiating in the transformer in the area, and the long-time use of the transformer is avoided due to low radiating efficiency.
And when setting up radiating strip 3 and heat conduction pole 2 in transformer body 1, radiating strip 3 and heat conduction pole 2's setting can be more convenient, only need with the heat at the interior top of transformer body 1 dispel the heat can, can design according to actual operation requirement, do not need to go on according to the setting mode of radiating strip 3 and heat conduction pole 2 in this scheme, as long as satisfy with the heat at the interior top of transformer body 1 dispel the heat with radiator 4 install on the heat conduction pole can.
In order to radiate heat transferred by the heat conducting rod 2 as soon as possible, and enhance the radiating efficiency of the transformer, in an embodiment, the radiator 4 comprises a radiating fin 41 and a heat conducting tube 42, the heat conducting tube 42 is arranged on the top surface of the heat conducting rod 2, the heat conducting tube 42 is a hollow conduit with two closed ends, a sealing chamber is arranged in the heat conducting tube 42, a refrigerant is filled in the sealing chamber plug, the radiating fin 41 is arranged on the top of the heat conducting tube 42, the refrigerant in the sealing chamber absorbs heat and then is converted into a gaseous state by liquid, when the radiator 4 radiates heat, the refrigerant in the sealing chamber of the heat conducting tube 42 absorbs heat in the heat conducting rod 2, at the moment, the refrigerant continuously absorbs heat and gradually converts the liquid state into the gaseous state, and rises to the top from the bottom of the heat conducting tube 42 when the refrigerant is converted into the gaseous state, the heat is continuously contacted with air to finish radiating, and after the heat in the refrigerant is radiated, the gaseous state is converted from the liquid to the bottom of the heat conducting tube 42 again, and the heat is radiated again and repeatedly circulated again, so that the radiating efficiency of the transformer is improved.
In order to enhance the heat dissipation effect of the heat dissipation fin 41, in an embodiment, the heat dissipation fin 41 is a star-shaped fin tube, the middle of the heat dissipation fin 41 is provided with a through hole 411, the through hole 411 is located above the heat conduction rod 2, the star-shaped fin tube allows the heat dissipation fin 41 to have more contact area to dissipate heat, meanwhile, the space occupied by the heat dissipation fin 41 can be reduced, the middle of the heat dissipation fin 41 is provided with the through hole 411, in the process of dissipating heat, the heat is continuously dissipated upwards along the heat conduction tube 42, so that the heat of the top surface of the heat conduction tube 42 is concentrated to the greatest extent, the temperature of the top surface of the heat conduction tube 42 is gradually reduced downwards from the top, cold air in the air can enter the groove 22 from the through hole 411 and rises along the groove 22, the smoke ventilation effect is formed, the air circulation in the heat dissipation fin 41 is enhanced, the heat dissipation efficiency is improved, and the heat dissipation effect is improved.
In order to meet the normal heat dissipation requirement of the heat sink 4, at least three heat sinks 4 are provided, and each heat sink 4 is uniformly mounted on the top surface of the heat conducting rod 2.
In order to better dissipate heat in the transformer, in an embodiment, the heat dissipation plate 41 is made of an aluminum profile, the heat conduction pipe 42 is made of copper, and the copper has high heat conductivity and good corrosion resistance, so that the heat conduction pipe 42 can transfer heat in insulating liquid in the transformer body 1, and then the heat is dissipated to air through the heat dissipation plate 41, thereby reducing the weight of the radiator 4 while completing rapid heat dissipation of the heat, and avoiding the weight increase of the transformer due to overweight.
In order to guarantee the installation effect of the radiator 4, in an embodiment, a connecting block 5 is arranged at the joint of the radiator 4 and the heat conducting rod 2, the side wall of the connecting block 5 is a tile thread, the connecting block 5 is in threaded connection with the heat conducting rod 2, meanwhile, as the side wall of the connecting block 5 is a tile thread, the external screw of the tile thread is conical, the internal screw is inverted conical, the inclination is smaller than that of the common screw, and the structure can enable the threads to be more compact when being subjected to compressive resistance, so that the firmness of connection is guaranteed.
In order to reduce the installation difficulty of the radiator 4 when maintaining and adding, the joint of the radiator 4 and the heat conducting rod 2 is provided with a sealing block, and the connecting block 5 is in sealing connection with the heat conducting rod 2, because the quantity of the radiators 4 installed on the transformer is inconsistent, the sealing block is arranged at the joint of the radiator 4 and the heat conducting rod 2 for installing the radiator 4 more conveniently, the installation efficiency is improved in a sealing mode, and when the radiator is installed, the radiator 4 is directly placed in the installation hole 21 to be sealed through the sealing block, so that the installation of the radiator 4 is completed, and the installation efficiency of the radiator 4 is greatly improved.
In order to improve the heat transfer efficiency of the heat conducting tube 42 and thus improve the heat dissipation effect, in an embodiment, a plurality of grooves 421 are circumferentially formed in the outer side wall of one end of the heat conducting tube 42 located in the transformer cup body, and the grooves 421 are formed in the bottom of the heat conducting tube 42, so that heat is continuously dissipated upwards along the heat conducting tube 42 in the heat dissipation process of the heat conducting tube 42, and the contact area between the heat conducting tube 42 and the heat conducting rod 2 can be improved due to the arrangement of the grooves 421, so that the heat transfer efficiency is improved, the heat dissipation efficiency is accelerated, and the heat dissipation effect is improved.
In order to ensure the heat dissipation effect of the heat sink 4, in an embodiment, one end of the heat conducting rod 2 located in the transformer body 1 is located above the iron core winding in the transformer body 1 and is immersed in the insulating liquid, and since the heat in the transformer is mainly generated by the iron core winding and rises to the top after the heat is generated, the position above the iron core winding is the highest temperature position of the insulating liquid of the oil immersed transformer, therefore, the heat in the transformer body 1 can be better dissipated by locating one end of the heat conducting rod 2 located above the iron core winding and immersing in the insulating liquid, and the heat is transferred to the heat conducting tube 42 located on the heat conducting rod 2 to improve the heat dissipation efficiency, and the heat in the transformer body 1 is absorbed by the heat conducting rod 2, so that the heat sink 4 can be better dissipated, and the heat dissipation efficiency is improved.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a transformer heat abstractor which characterized in that: the transformer comprises a transformer body, a heat conducting rod, a plurality of heat radiating strips and a radiator, wherein the heat conducting rod is arranged on the inner top surface of the transformer body, one end of the heat conducting rod is positioned outside the transformer body, the plurality of heat radiating strips are circumferentially arranged on the outer surface of a heat conducting rod pipe, and the radiator is arranged on the top surface of the heat conducting rod and positioned outside the transformer body;
the top surface of the heat conducting rod is provided with a plurality of mounting holes, and the bottom of the radiator is arranged in the mounting holes;
the radiator comprises radiating fins and a heat conducting pipe, the heat conducting pipe is arranged on the top surface of the heat conducting rod, the heat conducting pipe is a hollow conduit with two closed ends, a sealing chamber is arranged in the heat conducting pipe, a refrigerant is filled in the sealing chamber plug, the radiating fins are arranged on the top of the heat conducting pipe, and the refrigerant in the sealing chamber is converted into a gaseous state from liquid after absorbing heat;
the radiating fin is a star-shaped finned tube, a through hole is formed in the middle of the radiating fin, and the through hole is positioned above the heat conducting rod;
a connecting block is arranged at the joint of the radiator and the heat conducting rod, the side wall of the connecting block is a tile thread, and the connecting block is in threaded connection with the heat conducting rod;
a sealing block is arranged at the joint of the radiator and the heat conducting rod, and the connecting block is in sealing connection with the heat conducting rod;
the heat conduction pipe is located one end lateral wall circumference that the heat conduction rod was seted up a plurality of recesses.
2. A transformer heat sink according to claim 1, wherein: the heat sinks are at least three, and each heat sink is uniformly arranged on the top surface of the heat conducting rod.
3. A transformer heat sink according to claim 1, wherein: the radiating fin is composed of an aluminum profile, and the heat conducting tube is composed of copper.
4. A transformer heat sink according to claim 1, wherein: one end of the heat conducting rod, which is positioned in the transformer body, is positioned above the iron core winding in the transformer body and is immersed in the insulating liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310955951.3A CN116798742B (en) | 2023-08-01 | 2023-08-01 | Transformer heat abstractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310955951.3A CN116798742B (en) | 2023-08-01 | 2023-08-01 | Transformer heat abstractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116798742A CN116798742A (en) | 2023-09-22 |
| CN116798742B true CN116798742B (en) | 2023-12-29 |
Family
ID=88049904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310955951.3A Active CN116798742B (en) | 2023-08-01 | 2023-08-01 | Transformer heat abstractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116798742B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07220936A (en) * | 1994-02-04 | 1995-08-18 | Fujikura Ltd | Transformer cooling structure with looped heat pipe |
| KR100874480B1 (en) * | 2007-08-08 | 2008-12-18 | 동미전기공업(주) | Cooling efficiency improved transformer |
| CN101819858A (en) * | 2010-04-23 | 2010-09-01 | 上官远定 | Shell type transformer utilizing evaporative cooling for heat radiation |
| JP2011187888A (en) * | 2010-03-11 | 2011-09-22 | Mitsubishi Electric Corp | Transformer |
| CN207719004U (en) * | 2017-11-16 | 2018-08-10 | 华北电力大学（保定） | Oil immersed type gravity assisted heat pipe fission transformer |
| CN113764166A (en) * | 2021-09-29 | 2021-12-07 | 宁波仁栋电气有限公司 | Oil-immersed transformer |
| CN215417802U (en) * | 2021-05-28 | 2022-01-04 | 广东佰昌电力设备有限公司 | Liquid insulation transformer heat radiation structure |
| CN218482067U (en) * | 2022-11-01 | 2023-02-14 | 南通兴安源金属制品有限公司 | Transformer oil tank with high-efficient heat dissipation function |
-
2023
- 2023-08-01 CN CN202310955951.3A patent/CN116798742B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07220936A (en) * | 1994-02-04 | 1995-08-18 | Fujikura Ltd | Transformer cooling structure with looped heat pipe |
| KR100874480B1 (en) * | 2007-08-08 | 2008-12-18 | 동미전기공업(주) | Cooling efficiency improved transformer |
| JP2011187888A (en) * | 2010-03-11 | 2011-09-22 | Mitsubishi Electric Corp | Transformer |
| CN101819858A (en) * | 2010-04-23 | 2010-09-01 | 上官远定 | Shell type transformer utilizing evaporative cooling for heat radiation |
| CN207719004U (en) * | 2017-11-16 | 2018-08-10 | 华北电力大学（保定） | Oil immersed type gravity assisted heat pipe fission transformer |
| CN215417802U (en) * | 2021-05-28 | 2022-01-04 | 广东佰昌电力设备有限公司 | Liquid insulation transformer heat radiation structure |
| CN113764166A (en) * | 2021-09-29 | 2021-12-07 | 宁波仁栋电气有限公司 | Oil-immersed transformer |
| CN218482067U (en) * | 2022-11-01 | 2023-02-14 | 南通兴安源金属制品有限公司 | Transformer oil tank with high-efficient heat dissipation function |
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| Publication number | Publication date |
|---|---|
| CN116798742A (en) | 2023-09-22 |
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