Optimized cooling fin structure of transformer air duct

By optimizing the transformer air duct structure and adopting a multi-stage heat dissipation design and atomizing nozzle cooling, the problem of unsatisfactory heat dissipation effect of linear heat sinks was solved, the internal temperature of the transformer was effectively reduced, and the stable operation of the power system was ensured.

CN223362934UActive Publication Date: 2025-09-19LUOYANG XINGNIU TRANSFORMER CO LTD
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Patent Information

Application Number
CN202422038877.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-09-19
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

The linear heat sinks used in existing transformers have an unsatisfactory heat dissipation effect, which causes the internal temperature of the transformer to be too high, affecting the insulation performance and service life.

Method used

An optimized transformer air duct structure was designed, including an exhaust component and an outlet component. A 90° elbow, an exhaust fan, a folded heat sink, and heat sinks in the outlet duct were used. Multi-stage heat dissipation and airflow folding were used to increase the contact time and area between the airflow and the heat sink. An atomizing nozzle was used to spray coolant for auxiliary heat dissipation.

Benefits of technology

It effectively improves the heat dissipation effect of the transformer, reduces the internal temperature, and ensures the stable operation of the power system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of transformer heat dissipation, in particular to a transformer air duct optimized radiating fin structure which comprises an air draft assembly, the air draft assembly is fixedly installed on one side of an air duct, an air outlet assembly is fixedly installed at one end of the air duct, the air duct comprises an air duct body, and two air draft pipelines are arranged on one side of the air duct body. A folding type heat dissipation piece is arranged at one side end in the air duct body, and air draft pipeline cooling fins are arranged in the air draft pipelines. An air exhaust pipeline is arranged in the air duct, an air outlet dust cover is arranged at one end outside the air exhaust pipeline, and an air outlet pipeline cooling fin is arranged on the left side in the air outlet pipeline. Heat dissipation in the air inlet stage and the air outlet stage can be achieved by arranging the air exhaust pipeline cooling fin in the air duct and arranging the air outlet pipeline cooling fin in the air outlet assembly; meanwhile, the folding type heat dissipation piece is further arranged in the air duct, the contact time and area of airflow and the folding type heat dissipation piece can be effectively increased, and therefore the heat dissipation effect is improved.
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Description

Technical Field

[0001] The utility model relates to the field of transformer heat dissipation, in particular to a transformer air duct optimized heat sink structure. Background Art

[0002] As a vital piece of equipment in the power system, transformers generate significant heat losses during operation, primarily dissipated through components such as the core, windings, and steel structures. Poor heat dissipation can lead to excessively high internal temperatures, affecting insulation performance, shortening service life, and even causing failures. Therefore, optimizing the transformer's heat dissipation structure is crucial for ensuring stable power system operation.

[0003] The heat sink is a key component of the transformer air duct to dissipate heat from the transformer. Poor heat dissipation effect of the heat sink will cause the temperature inside the transformer to remain high and unable to drop. Therefore, the heat sink is a very important component. However, the heat dissipation effect of the linear heat sink currently used in transformers is not ideal. Utility Model Content

[0004] The main purpose of the utility model is to provide a transformer air duct optimized heat sink structure to solve the problem in the related art that the heat dissipation effect of the linear heat sink currently used in the transformer is not ideal.

[0005] In order to achieve the above object, according to one aspect of the present invention, a transformer air duct optimized heat sink structure is provided, comprising an exhaust assembly fixedly mounted on one side of the air duct, and an air outlet assembly fixedly mounted on one end of the air duct;

[0006] The air duct includes an air duct main body, two exhaust ducts are provided on one side of the air duct main body, a foldable heat sink is provided on one side end of the air duct main body, and exhaust duct heat sinks are provided in the air ducts; an air outlet duct is provided in the air outlet assembly, an air outlet dust cover is provided on one end outside the air outlet duct, and an air outlet duct heat sink is provided on the left side of the air outlet duct.

[0007] Furthermore, the exhaust assembly includes two 90° elbows, each of the 90° elbows is provided with an exhaust dust cover, each of the 90° elbows is provided with an exhaust fan bracket, an exhaust fan and an exhaust fan motor, and the exhaust dust cover is provided with an exhaust filter.

[0008] Furthermore, the 90° elbow is fixedly connected to the exhaust dust cover, the exhaust fan bracket is fixedly connected inside the 90° elbow, the exhaust fan is fixedly connected to the exhaust fan motor through the exhaust fan bracket, and the exhaust filter is fixedly connected inside the exhaust dust cover.

[0009] Furthermore, the air duct body is fixedly connected to the exhaust pipe, the air duct body is fixedly connected to the foldable heat sink, the exhaust pipe is fixedly connected to the exhaust pipe heat sink, and the exhaust pipe is fixedly connected to the 90° elbow.

[0010] Furthermore, the foldable heat sink is composed of several groups of V-shaped heat sinks, a throttling area is provided in the V-shaped heat sink, and an atomizing nozzle is provided on each of the throttling areas. The atomizing nozzle is fixedly installed in the air duct body.

[0011] Furthermore, an air outlet fan bracket, an air outlet fan and an air outlet fan motor are provided on the right side of the air outlet duct, an air outlet filter is provided in the air outlet dust cover, the air outlet duct is fixedly connected to the air outlet dust cover, and the air outlet duct is fixedly connected to the air outlet duct heat sink.

[0012] Furthermore, the air outlet fan bracket is fixedly connected in the air outlet duct, the air outlet fan is fixedly connected to the air outlet fan motor through the air outlet fan bracket, and the air outlet filter is fixedly connected in the air outlet dust cover.

[0013] Furthermore, an expansion pipe is provided between the air duct and the air outlet assembly, and the air duct is fixedly connected to the air outlet assembly through the expansion pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: by arranging an exhaust duct heat sink in the air duct and an outlet duct heat sink in the air outlet assembly, heat dissipation can be achieved in the air intake and air outlet stages. At the same time, a foldable heat sink is also arranged in the air duct, which can effectively increase the contact time and area of ​​the airflow and the foldable heat sink, thereby improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the utility model;

[0016] Figure 2 This is an overall cutaway view of the utility model;

[0017] Figure 3 This is a cross-sectional view of the exhaust assembly in the utility model;

[0018] Figure 4 This is a cross-sectional view of the stroke tube of the present invention;

[0019] Figure 5 This is a cross-sectional view of the air outlet component in the utility model.

[0020] Illustrations: 1. Exhaust assembly; 11. 90° elbow; 111. Exhaust fan bracket; 112. Exhaust fan; 113. Exhaust fan motor; 12. Exhaust dust cover; 121. Exhaust filter; 2. Air duct; 21. Air duct body; 211. Folding heat sink; 212. Atomizing nozzle; 22. Exhaust duct; 221. Exhaust duct heat sink; 3. Air outlet assembly; 31. Exhaust duct; 311. Exhaust duct heat sink; 312. Exhaust fan bracket; 313. Exhaust fan; 314. Exhaust fan motor; 32. Exhaust dust cover; 321. Exhaust filter; 33. Expanding pipe. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the utility model in combination with the accompanying drawings and preferred embodiments.

[0022] See also Figure 1-Figure 5 As shown, the purpose of this embodiment is to provide a transformer air duct optimized heat sink structure, including an exhaust component 1, the exhaust component 1 is fixedly installed on one side of the air duct 2, and an air outlet component 3 is fixedly installed at one end of the air duct 2.

[0023] The exhaust assembly 1 includes two 90° elbows 11, each of which is provided with an exhaust dust cover 12. The 90° elbow 11 is provided with an exhaust fan bracket 111, an exhaust fan 112 and an exhaust fan motor 113. The exhaust dust cover 12 is provided with an exhaust filter 121. The 90° elbow 11 is fixedly connected to the exhaust dust cover 12, the exhaust fan bracket 111 is fixedly connected in the 90° elbow 11, the exhaust fan 112 is fixedly connected to the exhaust fan motor 113 through the exhaust fan bracket 111, and the exhaust filter 121 is fixedly connected in the exhaust dust cover 12.

[0024] The air duct 2 includes an air duct main body 21, two exhaust ducts 22 are provided on one side of the air duct main body 21, a foldable heat sink 211 is provided at one end of the air duct main body 21, and exhaust duct heat sinks 22 are provided in the exhaust duct 22. The air duct main body 21 is fixedly connected to the exhaust duct 22, the air duct main body 21 is fixedly connected to the foldable heat sink 211, the exhaust duct 22 is fixedly connected to the exhaust duct heat sink 221, and the exhaust duct 22 is fixedly connected to the 90° elbow 11.

[0025] The folded heat sink 211 is composed of several groups of V-shaped heat sinks, each of which is provided with a throttling area 213, and an atomizing nozzle 212 is provided on the throttling area 213. The atomizing nozzle 212 is fixedly installed in the air duct body 21. The groups of V-shaped heat sinks are interactively composed to allow the airflow to reach the throttling area 213 through the inclined surface of the V-shaped heat sink. Since the interior of the throttling area 213 is V-shaped, the airflow will be deflected to the next throttling area 213 when passing through the throttling area 213, and the cycle will continue. The setting of the throttling area 213 can effectively increase the contact time and area of ​​the airflow with the V-shaped heat sink, thereby improving the heat dissipation effect. The groups of V-shaped heat sinks are parallel and have a gap of 5-10 cm. The atomizing nozzle 212 is connected to an external coolant and sprayed into the throttling area 213 to cool and dissipate the airflow passing through the throttling area 213. The lower end of the folded heat sink 211 is provided with several small holes for discharging the residual liquid sprayed by the atomizing nozzle 212.

[0026] An air outlet duct 31 is provided in the air outlet component 3, an air outlet dust cover 32 is provided at one end outside the air outlet duct 31, an air outlet duct heat sink 311 is provided on the left side of the air outlet duct 31, an air outlet fan bracket 312, an air outlet fan 313 and an air outlet fan motor 314 are provided on the right side of the air outlet duct 31, an air outlet filter 321 is provided in the air outlet dust cover 32, the air outlet duct 31 is fixedly connected to the air outlet dust cover 32, the air outlet duct 31 is fixedly connected to the air outlet duct heat sink 311, the air outlet fan bracket 312 is fixedly connected in the air outlet duct 31, the air outlet fan 313 is fixedly connected to the air outlet fan motor 314 through the air outlet fan bracket 312, and the air outlet filter 321 is fixedly connected in the air outlet dust cover 32.

[0027] An expansion pipe 33 is provided between the air duct 2 and the air outlet assembly 3. The air duct 2 is fixedly connected to the air outlet assembly 3 through the expansion pipe 33. The expansion pipe 33 can increase the diffusion area of ​​the air flow when it flows out, so that it can contact the air outlet duct heat sink 311 in a larger range, and can also achieve a certain heat dissipation effect.

[0028] When the utility model is used, the exhaust fan 112 in the exhaust assembly 1 starts to extract the hot air inside the transformer, and reaches the exhaust duct 22 through the 90° elbow 11, and is initially cooled by the exhaust duct heat sink 221 to reach the folded heat sink 211 inside the air duct 2. The folded heat sink 211 is composed of various groups of V-shaped heat sinks that are interactively composed to allow the air flow to reach the throttling area 213 through the inclined surface of the V-shaped heat sink. Since the interior of the throttling area 213 is V-shaped, the air flow will be deflected to the next throttling area 213 when passing through the interior of the throttling area 213, and the cycle is repeated. The setting of the throttling area 213 can effectively increase the heat dissipation of the transformer. The time and area of ​​contact between the airflow and the V-shaped heat sink are increased, thereby improving the heat dissipation effect. The V-shaped heat sinks of each group are parallel and have a gap of 5-10 cm. The atomizing nozzle 212 is connected to the cooling liquid and sprayed into the throttling area 213 to cool the airflow passing through the throttling area 213. The foldable heat sink 211 has a plurality of small holes at the lower end for discharging the residual liquid sprayed from the atomizing nozzle 212. Under the action of the foldable heat sink 211, the residual liquid is dissipated again and reaches the air outlet component 3, passes through the expanding tube 33, reaches the air outlet duct, and dissipates the heat for the last time through the heat sink of the air outlet duct, and is finally sent out by the air outlet fan 313.

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0030] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A transformer air duct optimized heat sink structure, comprising an exhaust assembly (1), characterized in that: The air extraction component (1) is fixedly mounted on one side of the air duct (2), and an air outlet component (3) is fixedly mounted on one end of the air duct (2); The air duct (2) comprises an air duct body (21), two exhaust ducts (22) are provided on one side of the air duct body (21), a foldable heat sink (211) is provided on one side end of the air duct body (21), and exhaust duct heat sinks (221) are provided in the air ducts (22); an air outlet duct (31) is provided in the air outlet assembly (3), an air outlet dust cover (32) is provided on one end outside the air outlet duct (31), and an air outlet duct heat sink (311) is provided on the left side of the air outlet duct (31).

2. The transformer air duct optimized heat sink structure according to claim 1, characterized in that: The exhaust assembly (1) comprises two 90° elbows (11), each of the 90° elbows (11) is provided with an exhaust dust cover (12), each of the 90° elbows (11) is provided with an exhaust fan bracket (111), an exhaust fan (112) and an exhaust fan motor (113), and the exhaust dust cover (12) is provided with an exhaust filter (121).

3. The transformer air duct optimized heat sink structure according to claim 2, characterized in that: The 90° elbow (11) is fixedly connected to the exhaust dust cover (12), the exhaust fan bracket (111) is fixedly connected inside the 90° elbow (11), the exhaust fan (112) is fixedly connected to the exhaust fan motor (113) through the exhaust fan bracket (111), and the exhaust filter (121) is fixedly connected inside the exhaust dust cover (12).

4. The transformer air duct optimized heat sink structure according to claim 3, characterized in that: The air duct body (21) is fixedly connected to the exhaust duct (22), the air duct body (21) is fixedly connected to the foldable heat sink (211), the exhaust duct (22) is fixedly connected to the exhaust duct heat sink (221), and the exhaust duct (22) is fixedly connected to the 90° elbow (11).

5. The transformer air duct optimized heat sink structure according to claim 4, characterized in that: The folded heat sink (211) is composed of a plurality of groups of V-shaped heat sinks, wherein a throttling area (213) is provided in the V-shaped heat sink, and each of the throttling areas (213) is provided with an atomizing nozzle (212), and the atomizing nozzle (212) is fixedly installed in the air duct body (21).

6. The transformer air duct optimized heat sink structure according to claim 5, characterized in that: An air outlet fan bracket (312), an air outlet fan (313) and an air outlet fan motor (314) are provided on the right side of the air outlet duct (31); an air outlet filter (321) is provided in the air outlet dust cover (32); and the air outlet duct (31) is fixedly connected to the air outlet dust cover (32).

7. The transformer air duct optimized heat sink structure according to claim 6, characterized in that: The air outlet duct (31) is fixedly connected to the air outlet duct heat sink (311), the air outlet fan bracket (312) is fixedly connected in the air outlet duct (31), the air outlet fan (313) is fixedly connected to the air outlet fan motor (314) through the air outlet fan bracket (312), and the air outlet filter (321) is fixedly connected in the air outlet dust cover (32).