Efficient and energy-saving power transformer heat dissipation device

Abstract

The utility model discloses an efficient and energy-saving power transformer heat dissipation device, and belongs to the technical field of transformer equipment. Comprising a plurality of cooling fins fixed to the outer walls of the two sides of a transformer outer box, an impeller is rotationally arranged at the lower ends of the multiple cooling fins on each side, and the impeller is in transmission connection with a wind power driver rotationally connected to the outer wall of the transformer outer box. When the impeller rotates clockwise or anticlockwise, air flow at the lower ends of the cooling fins on each side of the transformer outer box is changed, so that air flow between the adjacent cooling fins is accelerated, heat accumulation is avoided, the cooling effect of the cooling fins is improved, and more energy is saved through the wind power driver without electric drive.

Description

Technical Field

[0001] The present application relates to the technical field of transformer equipment, and more specifically, to a high-efficiency and energy-saving heat dissipation device for a power transformer. Background Art

[0002] Heat is generated during the operation of the transformer. Too high temperature will affect the efficiency of voltage conversion and cause increased losses. Therefore, the design of the transformer attaches great importance to heat dissipation performance. According to patent number CN205230725U, a transformer oil tank, the above-mentioned transformer oil tank has a complex heat dissipation structure, and the transformer is mostly used in an outdoor environment, and some transformers are set in relatively remote areas. The transformer with a complex structure is difficult to operate during maintenance, and the service life of the transformer is short.

[0003] The document with the prior art publication number CN 217386858 U provides a rapid heat dissipation device for an oil tank of an electric transformer. The device is provided with a limit groove on the inner wall of an outer box of the transformer, and a heat conducting sheet matching the limit groove is provided on the outer wall of an inner box of the transformer. Insulating oil is filled between the outer box of the transformer and the inner box of the transformer. The interior of the inner box of the transformer can be isolated from the outside world, and the influence of the external temperature environment on the working temperature of the internal components of the inner box of the transformer can be reduced.

[0004] Although the above-mentioned prior art solution can achieve the relevant beneficial effects through the structure of the prior art, it still has the following defects: when the device is in use, due to the poor fluidity of the gas in the area between adjacent heat sinks during the heat dissipation process of the heat sink, a large amount of heat will accumulate between adjacent heat sinks, resulting in the problem of relatively low heat dissipation performance of the heat sink.

[0005] In view of this, we propose a high-efficiency and energy-saving power transformer heat dissipation device. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the present application is to provide an efficient and energy-saving power transformer heat dissipation device, which solves the technical problems in the above-mentioned background technology and achieves the technical effect of accelerating the gas flow in the area between the heat sinks through wind drive, making the heat dissipation more efficient and energy-saving.

[0008] 2. Technical solution

[0009] The technical solution of the present application provides a high-efficiency and energy-saving power transformer heat dissipation device, comprising a plurality of heat sinks fixed to the outer walls on both sides of the transformer outer box, an impeller is rotatably provided at the lower end of the plurality of heat sinks on each side, and the impeller is transmission-connected to a wind drive rotatably connected to the outer wall of the transformer outer box.

[0010] By adopting the above technical solution, the wind force drives the wind driver to rotate by the wind force. When the impeller rotates clockwise or counterclockwise, the airflow at the lower ends of multiple heat sinks on each side of the transformer outer box is changed, thereby accelerating the gas flow between adjacent heat sinks, avoiding heat accumulation, and improving the heat dissipation effect of the heat sink. The wind driver does not need electric drive and is more energy-efficient.

[0011] As an optional solution of the technical solution of the present application document, the wind drive includes a driving shaft rotatably connected to the outer wall of the transformer outer box, a plurality of wind cups annularly distributed on the upper end of the driving shaft, an active bevel gear coaxially fixed to the driving shaft, and a driven bevel gear meshing with the active bevel gear.

[0012] By adopting the above technical solution, the driving shaft is vertically connected to the outer wall of the transformer outer box through the bearing. The wind blows the wind cup to drive the driving shaft to rotate. The driving shaft drives the active bevel gear and then drives the driven bevel gear to rotate. The driven bevel gear is transmitted to the impeller to realize the rotation of the impeller.

[0013] As an optional solution of the technical solution of this application document, a lens is fixedly mounted on the wind cup.

[0014] By adopting the above technical solution, when the wind cup rotates, the rotating lens can reflect light, thereby playing a role in driving away birds and preventing them from building nests in the outer box of the transformer.

[0015] As an optional solution to the technical solution of the present application document, the impeller includes a transmission shaft horizontally arranged at the lower ends of multiple heat sinks on the same side and rotatably connected to the outer wall of the transformer outer box, and multiple blades distributed in an annular manner on the transmission shaft, and the transmission shaft is coaxially fixed with the driven bevel gear.

[0016] By adopting the above technical solution, the transmission shaft is rotatably connected to the outer wall of the transformer outer box through a bearing, and is placed at the lower end of the heat sink and horizontally under multiple heat sinks. The transmission shaft and multiple blades are driven to rotate through the driven bevel gear, thereby accelerating the gas flow between the multiple heat sinks on each side.

[0017] As an optional solution to the technical solution of the present application document, wind guide plates are fixedly installed at both upper and lower ends of the heat sink, and multiple wind guide plates at the upper and lower ends are arranged in a step shape, and the steps of the wind guide plates at the upper and lower ends are in opposite directions.

[0018] By adopting the above technical solution, when the wind direction is from right to left, the multiple air guide plates at the upper end are lowered from right to left in sequence to ensure that the wind can pass through each air guide plate to be guided into the area between adjacent heat sinks. When the wind direction is from left to right, the multiple air guide plates at the lower end are lowered from left to right in sequence to ensure that the wind can pass through each air guide plate at the lower end to be guided into the area between adjacent heat sinks, thereby increasing the gas flow in the area between the heat sinks.

[0019] 3. Beneficial effects

[0020] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0021] 1. The present application drives the impeller to rotate by blowing the wind drive. When the impeller rotates clockwise or counterclockwise, the airflow at the lower end of the plurality of heat sinks on each side of the transformer outer box is changed, thereby accelerating the gas flow between adjacent heat sinks, avoiding heat accumulation, and improving the heat dissipation effect of the heat sink. The wind drive does not require electric drive, which is more energy-efficient.

[0022] 2. This application can prevent birds from nesting in the transformer outer box by reflecting light when the wind cup rotates.

[0023] 3. In the present application, when the wind direction is from right to left, the multiple air guide plates at the upper end are lowered from right to left in sequence to ensure that the wind can pass through each air guide plate to flow into the area between adjacent heat sinks. When the wind direction is from left to right, the multiple air guide plates at the lower end are lowered from left to right in sequence to ensure that the wind can pass through each air guide plate at the lower end to flow into the area between adjacent heat sinks, thereby increasing the gas flow in the area between the heat sinks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency energy-saving power transformer heat dissipation device disclosed in a preferred embodiment of the present application;

[0025] Figure 2 A high-efficiency energy-saving power transformer heat dissipation device disclosed in a preferred embodiment of the present application Figure 1 The enlarged structural diagram at A in the middle;

[0026] Figure 3 This is a schematic diagram of the overall front view structure of a high-efficiency energy-saving power transformer heat dissipation device disclosed in a preferred embodiment of the present application;

[0027] Explanation of the numbers in the figure: 1. Transformer outer box; 2. Heat sink; 3. Impeller; 301. Transmission shaft; 302. Blade; 4. Wind driver; 401. Drive shaft; 402. Wind cup; 4021. Lens; 403. Active bevel gear; 404. Driven bevel gear; 5. Wind guide plate. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings.

[0029] A high-efficiency and energy-saving heat dissipation device for a power transformer comprises a plurality of heat sinks 2 fixed to the outer walls of both sides of an outer box 1 of a transformer, an impeller 3 is rotatably provided at the lower end of the plurality of heat sinks 2 on each side, and the impeller 3 is transmission-connected to a wind drive 4 rotatably connected to the outer wall of the outer box 1 of the transformer.

[0030] Reference Figure 1-Figure 3 The wind driver 4 is driven by wind to rotate the impeller 3. When the impeller 3 rotates clockwise or counterclockwise, the airflow at the lower ends of the multiple heat sinks 2 on each side of the transformer outer box 1 is changed, thereby accelerating the gas flow between adjacent heat sinks 2, avoiding heat accumulation, and improving the heat dissipation effect of the heat sink 2. The wind driver 4 does not need to be driven by electricity, which is more energy-saving.

[0031] The wind drive 4 includes a driving shaft 401 rotatably connected to the outer wall of the transformer outer box 1 , a plurality of wind cups 402 annularly distributed on the upper end of the driving shaft 401 , a driving bevel gear 403 coaxially fixed to the driving shaft 401 , and a driven bevel gear 404 meshing with the driving bevel gear 403 .

[0032] Reference Figure 1-Figure 3 The driving shaft 401 is vertically connected to the outer wall of the transformer outer box 1 through a bearing. The wind blows the wind cup 402 to drive the driving shaft 401 to rotate. The driving shaft 401 drives the active bevel gear 403 and then drives the driven bevel gear 404 to rotate. The driven bevel gear 404 transmits to the impeller 3 to realize the rotation of the impeller 3.

[0033] A lens 4021 is fixedly mounted on the wind cup 402 .

[0034] Reference Figure 3 When the wind cup 402 rotates, the rotating lens 4021 can reflect light, thereby driving away birds and preventing them from building nests in the transformer outer box 1.

[0035] The impeller 3 includes a transmission shaft 301 which is horizontally arranged at the lower end of a plurality of heat sinks 2 on the same side and rotatably connected to the outer wall of the transformer outer box 1 , and a plurality of blades 302 annularly distributed on the transmission shaft 301 . The transmission shaft 301 is coaxially fixed with the driven bevel gear 404 .

[0036] Reference Figure 1 and Figure 2The transmission shaft 301 is rotatably connected to the outer wall of the transformer outer box 1 through a bearing, and is placed at the lower end of the heat sink 2 and horizontally below the multiple heat sinks 2. The transmission shaft 301 and the multiple blades 302 are driven to rotate through the driven bevel gear 404, thereby accelerating the gas flow between the multiple heat sinks 2 on each side.

[0037] Wind guide plates 5 are fixedly installed at both upper and lower ends of the heat sink 2. The wind guide plates 5 at the upper and lower ends are arranged in a step shape, and the step directions of the wind guide plates 5 at the upper and lower ends are opposite.

[0038] Reference Figure 1 and Figure 3 When the wind direction is from right to left, the multiple air guide plates 5 at the upper end are lowered from right to left in sequence to ensure that the wind can pass through each air guide plate 5 to be guided into the area between adjacent heat sinks 2. When the wind direction is from left to right, the multiple air guide plates 5 at the lower end are lowered from left to right in sequence to ensure that the wind can pass through each air guide plate 5 at the lower end to be guided into the area between adjacent heat sinks 2, thereby increasing the gas flow in the area between the heat sinks 2.

[0039] Working principle: wind blows the wind cup 402 to rotate, driving the driving shaft 401 to rotate, the driving shaft 401 drives the active bevel gear 403 and then drives the driven bevel gear 404 to rotate, the driven bevel gear 404 drives the transmission shaft 301 and the multiple blades 302 to rotate, thereby accelerating the gas flow between the multiple heat sinks 2 on each side, and when the wind cup 402 rotates, the rotating lens 4021 can reflect light, thereby playing a role in driving away birds and preventing birds from nesting in the transformer outer box 1.

Claims

1. A high-efficiency and energy-saving heat dissipation device for a power transformer, comprising a plurality of heat sinks (2) fixed to the outer walls of both sides of a transformer outer box (1), characterized in that: An impeller (3) is rotatably provided at the lower end of the plurality of heat sinks (2) on each side, and the impeller (3) is drivingly connected to a wind drive (4) rotatably connected to the outer wall of the transformer outer box (1).

2. The high-efficiency energy-saving power transformer heat dissipation device according to claim 1, characterized in that: The wind drive (4) comprises a driving shaft (401) rotatably connected to the outer wall of the transformer outer box (1), a plurality of wind cups (402) annularly distributed on the upper end of the driving shaft (401), a driving bevel gear (403) coaxially fixed to the driving shaft (401), and a driven bevel gear (404) meshing with the driving bevel gear (403).

3. The high-efficiency energy-saving power transformer heat dissipation device according to claim 2 is characterized in that: A lens (4021) is fixedly mounted on the wind cup (402).

4. The high-efficiency energy-saving power transformer heat dissipation device according to claim 2, characterized in that: The impeller (3) comprises a transmission shaft (301) which is horizontally arranged at the lower ends of a plurality of heat sinks (2) on the same side and rotatably connected to the outer wall of the transformer outer box (1), and a plurality of blades (302) annularly distributed on the transmission shaft (301); the transmission shaft (301) is coaxially fixed to a driven bevel gear (404).

5. The high-efficiency and energy-saving heat dissipation device for power transformer according to claim 1, characterized in that: Wind guide plates (5) are fixedly mounted at both the upper and lower ends of the heat sink (2); a plurality of the wind guide plates (5) at the upper and lower ends are arranged in a step-like manner; and the steps of the wind guide plates (5) at the upper and lower ends are in opposite directions.

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