Main transformer heat dissipation device

By adjusting the air outlet of the air-cooled unit using lifting and limiting components, the problems of insufficient heat dissipation of the main transformer and the impact of rainwater are solved, achieving efficient heat dissipation and reducing maintenance difficulty.

CN223956420UActive Publication Date: 2026-02-27ANHUI XIANGHONGDIAN HYDROPOWER CO LTD
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Patent Information

Application Number
CN202520504290.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-02-27
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

In existing main transformer cooling devices, the fan outlet is far from the heat sink, resulting in insufficient heat dissipation. Furthermore, the upward-facing fan outlet is susceptible to rainwater, increasing maintenance difficulty.

Method used

A heat dissipation device including an air-cooling unit and an adjustment unit was designed. The air outlet of the air-cooling unit can be adjusted up and down through the lifting component and the limiting component, and rainwater is prevented from entering the fan air outlet duct during rainy weather.

Benefits of technology

It enables flexible adjustment of the fan outlet, ensuring sufficient heat dissipation from the heat sink, and reduces the maintenance difficulty of the fan outlet duct in rainy weather.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a main transformer heat dissipation device which comprises a heat dissipation sheet arranged on one side of a main transformer body and further comprises an air cooling unit arranged below the heat dissipation sheet and used for blowing air to the heat dissipation sheet to dissipate heat. The adjusting unit comprises a lifting assembly arranged on the upper portion of the air cooling unit and used for adjusting the air outlet position of the air cooling unit relative to the cooling fins, and a limiting assembly arranged on one side of the lifting assembly and used for limiting the height of the lifting assembly. The limiting assembly is pulled out from one side of the lifting assembly, then the lifting assembly is stretched upwards, and when the lifting assembly drives the air outlet of the air cooling unit to a proper position close to the cooling fins, the limiting assembly is inserted into one side of the lifting assembly again, so that the lifting assembly after position adjustment is limited again; therefore, the air outlet of the air cooling unit can be adjusted up and down, and sufficient heat dissipation of the cooling fins is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of transformer heat dissipation technology, specifically a heat dissipation device for a main transformer. Background Technology

[0002] The main transformer generates a lot of heat during operation. Traditional heat dissipation methods include heat sinks, fan cooling, or a combination of heat sinks and fans.

[0003] However, existing technologies that combine heat sinks and fans for heat dissipation typically use a bottom-blowing method with the fan positioned below the heat sink. On one hand, this method cannot adjust the fan's exhaust height according to the installation height of the main transformer's heat sink, resulting in the fan's exhaust outlet being too far from the heat sink, leading to weak airflow and insufficient heat dissipation. On the other hand, the bottom-blowing method makes it susceptible to rain in rainy weather, as the fan exhaust outlet faces upwards, causing rainwater to drip into the outlet and affecting subsequent fan performance, increasing the difficulty of maintaining the fan's exhaust duct.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Utility Model Content

[0005] The purpose of this utility model is to provide a heat dissipation device for a main transformer, so as to solve the problems mentioned in the background art, such as the inability to adjust the air outlet of the bottom-blowing fan of the main transformer heat sink, the large distance between the fan outlet and the heat sink resulting in insufficient heat dissipation, the upward setting of the fan outlet making it easy for rainwater to drip in, and the difficulty of subsequent maintenance of the fan outlet duct.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat dissipation device for a main transformer includes heat sinks disposed on one side of the main transformer body, and further includes:

[0008] The air-cooling unit is located below the heat sink and is used to blow air to dissipate heat from the heat sink;

[0009] The adjustment unit includes a lifting component located on the upper part of the air-cooling unit for adjusting the air outlet position of the air-cooling unit relative to the heat sink, and a limiting component located on one side of the lifting component for limiting the height of the lifting component.

[0010] Furthermore, the air-cooling unit includes:

[0011] The distribution pipe is located below the heat sink;

[0012] The air inlet duct is connected to one end of the split duct and is connected to the inside of the split duct;

[0013] A fan is connected to one end of the air inlet pipe opposite to the shunt pipe, and is used to blow air into the air inlet pipe.

[0014] Further, the lifting assembly comprises:

[0015] A plurality of groups of fixed pipes are arranged at equal intervals and are fixedly connected to the upper end of the shunt pipe, and the inner wall of the opening of the upper end of the fixed pipe is fixedly inserted with a limiting ring;

[0016] A telescopic pipe is slidingly inserted into the fixed pipe;

[0017] A piston ring is fixedly connected to the lower end of the telescopic pipe, and the outer side of the piston ring is in contact with the inner wall of the fixed pipe.

[0018] Further, the lifting assembly further comprises:

[0019] A plurality of groups of lifting plates are arranged, fixedly connected to the upper end of the telescopic pipe and corresponding to the telescopic pipe, and the inner part of the lifting plate is provided with a cavity in communication with the telescopic pipe;

[0020] A plurality of groups of air outlet pipes are uniformly distributed, fixedly connected to the upper end of the lifting plate, and used to blow air in the lifting plate into the heat dissipation fins.

[0021] Further, the air outlet pipe is connected with a hook portion on one side close to the upper end, and the inner part of the hook portion is provided with a bent pipe hole in communication with the inner part of the air outlet pipe;

[0022] The opening of the curved portion of the bent pipe hole faces upward, and the plane where the upper end opening of the hook portion is located is lower than the upper end of the air outlet pipe.

[0023] Further, the limiting assembly comprises:

[0024] A lifting rod is fixedly connected to the lower end of one of the lifting plates;

[0025] A plurality of groups of clamping grooves are arranged at equal intervals on one side of the lifting rod;

[0026] A vertical rod is fixedly connected to the upper end of the shunt pipe and located on one side of the lifting rod;

[0027] A clamping shaft is slidingly inserted into the inner part of the vertical rod, and one end of the clamping shaft is located in one of the clamping grooves, and is used to limit the lifting rod.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. This utility model pulls the limiting component out from one side of the lifting component, and then pulls the lifting component upward. When the lifting component moves the air outlet of the air-cooling unit to a suitable position close to the heat sink, the limiting component is inserted back into one side of the lifting component, so that the lifting component after position adjustment is limited again. This allows the air outlet of the air-cooling unit to be adjusted up and down to ensure that the heat sink can dissipate heat fully. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 For the present utility model in Figure 1 Enlarged view of point A in the middle;

[0032] Figure 3 This diagram shows the coordination relationship between the air-cooling unit and the regulating unit of this utility model.

[0033] Figure 4 For the present utility model in Figure 3 Enlarged view of point B in the middle;

[0034] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0035] Reference numerals: 100, Main transformer body; 101, Heat sink; 1, Air-cooled unit; 11, Diverter pipe; 12, Air inlet pipe; 13, Fan; 2, Adjustment unit; 21, Lifting assembly; 211, Lifting plate; 212, Linking rod; 213, Fixed pipe; 2131, Telescopic pipe; 2132, Limiting ring; 2133, Piston ring; 214, Air outlet pipe; 215, Hook part; 2151, Bend hole; 22, Limiting assembly; 221, Lifting rod; 2211, Slot; 222, Upright rod; 223, Shaft. Detailed Implementation

[0036] 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.

[0037] Please see Figures 1-5 This utility model provides a technical solution:

[0038] A heat dissipation device for a main transformer includes a heat sink 101 disposed on one side of the main transformer body 100, and further includes:

[0039] The air-cooling unit 1 is arranged below the heat dissipation fin 101 and used for air cooling the heat dissipation fin 101.

[0040] The adjusting unit 2 comprises a lifting assembly 21 arranged on the upper portion of the air-cooling unit 1 and used for adjusting the air outlet position of the air-cooling unit 1 relative to the heat dissipation fin 101, and a limiting assembly 22 arranged on one side of the lifting assembly 21 and used for limiting the height of the lifting assembly 21.

[0041] It should be noted that when the air outlet of the air-cooling unit 1 is far away from the heat dissipation fin 101, the limiting assembly 22 is pulled out from one side of the lifting assembly 21, and then the lifting assembly 21 is pulled up, and the air outlet of the air-cooling unit 1 is driven to the appropriate position close to the heat dissipation fin 101, and then the limiting assembly 22 is inserted into one side of the lifting assembly 21 again, so that the lifting assembly 21 after position adjustment is limited again, thereby the air outlet of the air-cooling unit 1 can be adjusted up and down, and the heat dissipation fin 101 can be fully cooled.

[0042] As an improvement, as shown in Figure 1 , Figure 3 The air-cooling unit 1 comprises:

[0043] The shunt pipe 11 is arranged below the heat dissipation fin 101.

[0044] The air inlet pipe 12 is connected to one end of the shunt pipe 11 and communicates with the inside of the shunt pipe 11.

[0045] The fan 13 is connected to one end of the air inlet pipe 12 opposite to the shunt pipe 11 and used for blowing air into the air inlet pipe 12.

[0046] Further, as shown in Figure 2 , Figure 4 The lifting assembly 21 comprises:

[0047] The fixed pipe 213 is arranged in multiple groups at equal intervals and fixedly connected to the upper end of the shunt pipe 11, and the upper end opening inner wall of the fixed pipe 213 is fixedly inserted with a limiting ring 2132.

[0048] The telescopic pipe 2131 is slidingly inserted into the inside of the fixed pipe 213.

[0049] The piston ring 2133 is fixedly connected to the lower end of the telescopic pipe 2131, and the outer side of the piston ring 2133 is in contact with the inner wall of the fixed pipe 213.

[0050] Further, as shown in Figure 4 ,

[0051] A plurality of lifting plates 211 are fixedly connected to the upper ends of the telescopic pipes 2131 and correspond to the telescopic pipes 2131, and the lifting plates 211 are internally provided with cavities in communication with the telescopic pipes 2131;

[0052] A plurality of air outlet pipes 214 are fixedly connected to the upper ends of the lifting plates 211 and are uniformly distributed, and are used for blowing air in the lifting plates 211 to the radiating fins 101.

[0053] The air outlet pipe 214 is connected to the upper side of the hook portion 215, and the hook portion 215 is internally provided with a bent pipe hole 2151 in communication with the inside of the air outlet pipe 214.

[0054] The curved portion of the bent pipe hole 2151 is upwardly open, and the upper end of the hook portion 215 is lower than the upper end of the air outlet pipe 214.

[0055] In addition, as shown in Figure 5 The limiting assembly 22 comprises:

[0056] A lifting rod 221 is fixedly connected to the lower end of one of the lifting plates 211.

[0057] A plurality of clamping grooves 2211 are equidistantly arranged on one side of the lifting rod 221.

[0058] A vertical rod 222 is fixedly connected to the upper end of the shunt pipe 11 and is located on one side of the lifting rod 221.

[0059] A clamping shaft 223 is slidingly inserted into the vertical rod 222, and one end of the clamping shaft 223 is located in one of the clamping grooves 2211, and is used for limiting the lifting rod 221.

[0060] It should be noted that, in the specific implementation process of the utility model, as shown in Figure 1 , Figures 3-4 The fan 13 blows air to the radiating fins 101 through the air inlet pipe 12, the shunt pipe 11, the fixed pipe 213, the telescopic pipe 2131, the lifting plate 211, the air outlet pipe 214 and the bent pipe hole 2151, so that the heat in the radiating fins 101 is quickly taken out.

[0061] As shown in Figures 2-5As shown, when the hook part 215 of the installed diversion pipe 11 is far from the heat sink 101, causing the heat inside the heat sink 101 to not be fully dissipated, the retaining rod 223 is pulled out from the slot 2211 along the upright 222, and then the lifting rod 221 is pushed upward. The lifting rod 221 drives the air outlet pipe 214 to move upward through the lifting plate 211. During this process, the lifting plate 211 drives the telescopic pipe 2131 to move upward along the inside of the fixed pipe 213 until the air outlet pipe 214 drives the hook part 215 to move upward to a suitable distance from the heat sink 101. At this time, the lifting rod 221 is stopped. Then, the retaining rod 223 is inserted again into the slot 2211 corresponding to the switched position along the upright 222, so that the lifting rod 221 is locked and limited, thereby allowing the air outlet to be adjusted up and down to avoid insufficient heat dissipation due to slow airflow speed on the surface of the heat sink 101.

[0062] like Figures 2-3 As shown, during the upward movement of the lifting plate 211 corresponding to the lifting rod 221, the lifting plate 211 drives the other lifting plates 211 to move upward synchronously through the linkage rod 212;

[0063] like Figure 4 As shown, in addition, by setting the hook part 215 into a curved shape with the opening facing upward, in rainy weather, rainwater dripping into the bend hole 2151 will accumulate at the bottom of the bend hole 2151. After the fan 13 is started, the air in the air outlet pipe 214 will blow the rainwater in the bend hole 2151 out, thereby preventing rainwater from entering the lifting plate 211 and reducing the maintenance difficulty of the fan 13 pipe.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation device for a main transformer, comprising a heat sink (101) disposed on one side of the main transformer body (100), characterized in that, Also includes: The air-cooled unit (1) is located below the heat sink (101) and is used to blow air to dissipate heat from the heat sink (101); The adjustment unit (2) includes a lifting component (21) located on the upper part of the air-cooling unit (1) for adjusting the air outlet position of the air-cooling unit (1) relative to the heat sink (101), and a limiting component (22) located on one side of the lifting component (21) for limiting the height of the lifting component (21).

2. The heat dissipation device for a main transformer according to claim 1, characterized in that: The air-cooled unit (1) includes: The shunt pipe (11) is located below the heat sink (101); The air inlet pipe (12) is connected to one end of the branch pipe (11) and communicates with the inside of the branch pipe (11); A fan (13) is connected to one end of the air inlet pipe (12) relative to the split pipe (11) and is used to blow air into the air inlet pipe (12).

3. The heat dissipation device for a main transformer according to claim 2, characterized in that: The lifting assembly (21) includes: The fixed tube (213) is provided in multiple sets at equal intervals and is fixedly connected to the upper end of the diversion tube (11). The inner wall of the upper opening of the fixed tube (213) is fixedly inserted with a limit ring (2132). The telescopic tube (2131) is slidably inserted into the fixed tube (213) from top to bottom; A piston ring (2133) is fixedly connected to the lower end of the telescopic tube (2131), and the outer side of the piston ring (2133) is in contact with the inner wall of the fixed tube (213).

4. A heat dissipation device for a main transformer according to claim 3, characterized in that: The lifting assembly (21) also includes: The lifting plate (211) is provided in multiple sets, which are fixedly connected to the upper end of the telescopic tube (2131) and correspond one-to-one with the telescopic tube (2131). The lifting plate (211) has a cavity inside that communicates with the telescopic tube (2131). Multiple sets of air outlet pipes (214) are evenly distributed and fixedly connected to the upper end of the lifting plate (211) to blow the air in the lifting plate (211) into the heat sink (101).

5. A heat dissipation device for a main transformer according to claim 4, characterized in that: The air outlet pipe (214) is connected to a hook part (215) on one side near the top. The hook part (215) has a bend hole (2151) inside that communicates with the inside of the air outlet pipe (214). The curved part of the bent pipe hole (2151) faces upward, and the plane of the upper opening of the hook part (215) is lower than the upper end of the air outlet pipe (214).

6. A heat dissipation device for a main transformer according to claim 4, characterized in that: The limiting component (22) includes: The lifting rod (221) is fixedly connected to the lower end of one of the lifting plates (211); The card slot (2211) is provided in multiple sets, which are equally spaced on one side of the lifting rod (221); The upright (222) is fixedly connected to the upper end of the diversion pipe (11) and located on one side of the lifting rod (221); A retaining rod (223) is slidably inserted into the inside of the upright rod (222). One end of the retaining rod (223) is located inside one of the retaining grooves (2211) and is used to limit the lifting rod (221).