Dry-type transformer with cooling structure

Abstract

The utility model relates to the technical field of dry-type transformers, and discloses a dry-type transformer with a cooling structure, which comprises a protection frame, a support cross rod is arranged on the inner wall of the protection frame, the top end of the support cross rod is fixedly connected with a water-cooling heat dissipation cabinet, the outer wall of the water-cooling heat dissipation cabinet is fixedly connected with a motor II, and the motor II is fixedly connected with a motor II. The output end of the second motor is fixedly connected with a second rotating shaft. According to the dry-type transformer with the cooling structure, by starting a second motor, cooling water in a water-cooling heat dissipation cabinet moves towards the side face in the water-cooling heat dissipation cabinet and sequentially passes through the surface of a first heat dissipation plate and the surface of a second heat dissipation plate, and internal heat energy is transmitted to the exterior of the water-cooling heat dissipation cabinet for heat dissipation; and finally, the water flows into the heat dissipation pipe on one side to cool the exterior of the dry-type transformer and then flows back into the water cooling heat dissipation cabinet through the heat dissipation pipe to be recycled, the water cooling system can effectively transfer heat generated in the transformer to the external environment, the heat dissipation efficiency is improved, and the energy consumption cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dry-type transformers, in particular to a dry-type transformer with a cooling structure. Background Art

[0002] A dry-type transformer is a transformer insulated by filling the insulating material with epoxy resin or other organic insulating materials. Compared with traditional oil-immersed transformers, it has better environmental performance and safety. It does not require the use of oil as an insulating and cooling medium, so there is no risk of oil leakage, explosion and environmental pollution during operation. Controlling the operating temperature of the transformer and ensuring that the transformer can remain within a safe temperature range during long-term operation can effectively reduce the temperature rise of the transformer and avoid safety hazards such as overheating leading to aging of insulating materials, equipment damage and even fire.

[0003] In the process of implementing this application, the inventor found that there are at least the following problems in this technology:

[0004] (1) Since dry-type transformers are usually cooled by natural convection or forced cooling by fans, a larger installation space is required to ensure good heat dissipation effect, which may cause inconvenience in some places with limited space. Natural convection or additional fans are used to dissipate heat, which is a relatively inefficient way of heat dissipation. Therefore, under high power and high load conditions, it is difficult to effectively dissipate heat, resulting in an increase in the operating temperature of the transformer. In a high temperature, humid or dusty environment, the natural cooling effect of the dry-type transformer will be affected, and the problem of excessive temperature rise may occur, thereby affecting the reliability and life of the equipment.

[0005] (2) Most fans are driven by a single power source. Since the start and stop of each group of fans are not synchronized, the air volume and wind speed may fluctuate unstably, affecting the heat dissipation effect, reducing the heat dissipation efficiency of the transformer and increasing the risk of temperature rise. Asynchronous start and stop will cause irregular fan operation time. Some fans may run when not necessary, increasing energy consumption and reducing energy utilization efficiency. Asynchronous start and stop of different groups of fans may lead to uneven air flow and uneven temperature distribution on the transformer surface, increasing the thermal stress of the equipment and reducing the reliability of the equipment. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a dry-type transformer with a cooling structure, which has the advantages of rapid cooling of water cooling equipment and synchronous start and stop of multiple sets of electric fans, solving the problems of poor heat dissipation caused by insufficient natural air flow and unstable fluctuations in air volume and wind speed caused by asynchronous electric fans.

[0007] The utility model provides the following technical solution: a dry-type transformer with a cooling structure, comprising a protection frame, the inner wall of the protection frame is provided with a supporting cross bar, the top of the supporting cross bar is fixedly connected to a water-cooling heat sink, the outer wall of the water-cooling heat sink is fixedly connected to a motor 2, the output end of the motor 2 is fixedly connected to a rotating shaft 2, the outer wall of the rotating shaft 2 is transmission-connected to a transmission belt 3, the outer wall of the transmission belt 3 is fixedly connected to a plurality of flow plates, and the inner wall of the water-cooling heat sink is fixedly connected to a plurality of heat sink 1 and heat sink 2.

[0008] Preferably, three groups of connecting plates are fixedly connected to the back side of the protection frame, a circular hole is opened inside the connecting plate, and a fixing frame is fixedly connected inside the circular hole, a rotating shaft 1 is rotatably sleeved inside the fixed frame, a fan blade is fixedly connected to the back side of the rotating shaft 1, the front side of the rotating shaft 1 is transmission connected to one end of a transmission belt 1, the other end of the transmission belt 1 is transmission connected to the second group of rotating shafts 1, the outer wall of the second group of rotating shafts 1 is transmission connected to a transmission belt 2, the outer wall of the transmission belt 2 is transmission connected to a third group of rotating shafts 1, the front side of the third group of rotating shafts 1 is fixedly connected to the output end of motor 1, the bottom surface of the motor 1 is fixedly connected to a connecting limit plate, and the bottom surface of the connecting limit plate is fixedly connected to a connecting plate.

[0009] Preferably, a plurality of groups of heat dissipation pipes are fixedly connected to the outer wall of the water-cooled heat dissipation cabinet, two groups of support frames are fixedly connected to the outer wall of the heat dissipation pipe, and the bottom end of the support frame is fixedly connected to the upper end of the support cross bar.

[0010] Preferably, the bottom end of the heat sink one is fixedly connected to the bottom end of the inner wall of the water-cooled heat sink, the top end of the heat sink two is fixedly connected to the top end of the inner wall of the water-cooled heat sink, and the heat sink one and the heat sink two are arranged alternately.

[0011] Preferably, a dry-type transformer is fixedly connected to the top end of the supporting crossbar.

[0012] Preferably, three groups of movable doors are arranged on the front of the protection frame, and the three groups of movable doors are arranged linearly, and a plurality of groups of heat dissipation slots are opened on both sides of the protection frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The dry-type transformer with a cooling structure starts motor 2, and the output end of motor 2 drives the rotating shaft 2 fixedly connected at the bottom to rotate inside the water-cooled heat sink, thereby driving the transmission belt 3 connected to the outer wall to rotate on the outer walls of the two sets of rotating shafts 2, and further driving the flow plate fixedly connected on the outer wall to rotate on the surface, so that the cooling water inside the water-cooled heat sink moves laterally inside, passes through the surfaces of the heat sink 1 and the heat sink 2 in turn, transfers the internal heat energy to the outside of the water-cooled heat sink for heat dissipation, and finally flows to the inside of the heat dissipation pipe on one side to cool the outside of the dry-type transformer, and then flows back to the inside of the water-cooled heat sink through the heat dissipation pipe for circulation. The water cooling system can effectively transfer the heat generated inside the transformer to the external environment, improve the heat dissipation efficiency, and help maintain the normal operating temperature of the transformer. Compared with the traditional air cooling system, the water cooling system can usually reduce the operating temperature of the transformer more effectively, thereby reducing energy consumption and reducing energy consumption costs.

[0015] 2. This dry-type transformer with a cooling structure starts motor 1, and the output end of motor 1 drives rotating shaft 1 to rotate. Because transmission belt 2 is connected to the second group of rotating shafts 1, and transmission belt 1 is connected to the second and first groups of rotating shafts 1, when the third group of rotating shafts 1 rotates, it also drives the other two groups of rotating shafts 1 to rotate inside the fixed frame, thereby driving the fan blades on the back to rotate. Synchronous start and stop of multiple groups of electric fans can ensure that sufficient cooling air volume is provided when needed, and when the load is low or the ambient temperature is low, the operation of the fan can be reduced, thereby improving heat dissipation efficiency and reducing energy consumption. Through synchronous start and stop, it can be adjusted according to actual heat dissipation needs, reducing unnecessary energy consumption, improving energy utilization efficiency, and meeting the requirements of energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the appearance and structure of the dry-type transformer of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the dry-type transformer cooling fan in a row of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the dry-type transformer of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the heat dissipation box of a dry-type transformer of the utility model.

[0020] In the figure: 1. protection frame; 2. movable door; 3. heat sink; 4. connecting plate; 5. fixed frame; 6. fan blade; 7. rotating shaft 1; 8. transmission belt 1; 9. transmission belt 2; 10. connection limit plate; 11. motor 1; 12. supporting cross bar; 13. motor 2; 14. water-cooled heat sink; 15. heat pipe; 16. dry-type transformer; 17. supporting frame; 18. heat sink 1; 19. rotating shaft 2; 20. flow plate; 21. transmission belt 3; 22. heat sink 2. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-4 A dry-type transformer with a cooling structure comprises a protection frame 1, the inner wall of the protection frame 1 is provided with a support cross bar 12, the top of the support cross bar 12 is fixedly connected to a water-cooling heat sink 14, the outer wall of the water-cooling heat sink 14 is fixedly connected to a motor 2 13, the output end of the motor 2 13 is fixedly connected to a rotating shaft 2 19, the outer wall of the rotating shaft 2 19 is transmission-connected to a transmission belt 3 21, the outer wall of the transmission belt 3 21 is fixedly connected to a plurality of flow plates 20, the inner wall of the water-cooling heat sink 14 is fixedly connected to a plurality of heat sinks 18, a heat sink 19, and a heat sink 20. The hot plate 22 starts the motor 213, and the output end of the motor 213 drives the rotating shaft 21 fixedly connected to the bottom to rotate inside the water-cooled heat sink 14, thereby driving the transmission belt 3 21 connected to the outer wall to rotate on the outer walls of the two groups of rotating shafts 219, and further drives the flow plate 20 fixedly connected to the outer wall to rotate on the surface, so that the cooling water inside the water-cooled heat sink 14 moves sideways inside, passes through the surfaces of the heat sink 18 and the heat sink 22 in turn, and transfers the internal heat energy to the outside of the water-cooled heat sink 14 for heat dissipation.

[0023] See also Figure 2The back of the protection frame 1 is fixedly connected with three groups of connecting plates 4, the inside of the connecting plate 4 is provided with a circular hole, and the inside of the circular hole is fixedly connected with a fixing frame 5, the inside of the fixing frame 5 is rotatably sleeved with a rotating shaft 7, the back of the rotating shaft 7 is fixedly connected with a fan blade 6, the front of the rotating shaft 7 is transmission-connected with one end of a transmission belt 8, the other end of the transmission belt 8 is transmission-connected with the second group of rotating shafts 7, the outer wall of the second group of rotating shafts 7 is transmission-connected with a transmission belt 29, the outer wall of the transmission belt 29 is transmission-connected with a third group of rotating shafts 7, the front of the third group of rotating shafts 7 is fixedly connected with an electric At the output end of the motor 11, the bottom surface of the motor 11 is fixedly connected with a connecting limit plate 10, and the bottom surface of the connecting limit plate 10 is fixedly connected with a connecting plate 4. When the motor 11 is started, the output end of the motor 11 drives the rotating shaft 7 to rotate. Because the transmission belt 29 is connected to the second group of rotating shafts 7, and the transmission belt 8 is connected to the second and first groups of rotating shafts 7, when the third group of rotating shafts 7 rotates, the other two groups of rotating shafts 7 are driven to rotate inside the fixed frame 5 at the same time, thereby driving the fan blades 6 on the back to rotate. Multiple groups of fan blades 6 can rotate synchronously to reduce energy consumption.

[0024] See also Figure 3 The outer wall of the water-cooled heat dissipation cabinet 14 is fixedly connected with a plurality of heat dissipation pipes 15 , and the outer wall of the heat dissipation pipe 15 is fixedly connected with two groups of support frames 17 , and the bottom end of the support frame 17 is fixedly connected with the upper end of the support cross bar 12 .

[0025] See also Figure 4 The bottom end of the heat sink 18 is fixedly connected to the bottom end of the inner wall of the water-cooled heat sink 14, and the top end of the heat sink 22 is fixedly connected to the top end of the inner wall of the water-cooled heat sink 14. The heat sink 18 and the heat sink 22 are arranged alternately, and the cooling water alternately flows through the heat sink 18 and the surface of the heat sink 22 to achieve the effect of rapid heat dissipation.

[0026] See also Figure 3 A dry-type transformer 16 is fixedly connected to the top of the supporting cross bar 12 .

[0027] See also Figure 1 Three groups of movable doors 2 are arranged on the front of the protection frame 1, and the three groups of movable doors 2 are arranged linearly. Several groups of heat dissipation slots 3 are opened on both sides of the protection frame 1. The heat dissipation slots 3 are opened to increase the flow of natural wind and reduce the energy consumption of cooling.

[0028] Working principle: when in use, first start the motor 2 13, the output end of the motor 2 13 drives the rotating shaft 2 19 fixedly connected at the bottom to rotate inside the water-cooled heat sink 14, thereby driving the transmission belt 3 21 connected to the outer wall to rotate on the outer walls of the two sets of rotating shafts 2 19, and further drives the flow plate 20 fixedly connected to the outer wall to rotate on the surface, so that the cooling water inside the water-cooled heat sink 14 moves sideways inside, passes through the surfaces of the heat sink 1 18 and the heat sink 2 22 in turn, transfers the internal heat energy to the outside of the water-cooled heat sink 14 for heat dissipation, and finally flows The heat flows into the heat dissipation pipe 15 on one side to cool the outside of the dry-type transformer 16, and then flows back to the inside of the water-cooled heat dissipation cabinet 14 through the heat dissipation pipe 15 for recycling. Then, the motor 11 is started, and the output end of the motor 11 drives the rotating shaft 7 to rotate. Because the transmission belt 29 is connected to the second group of rotating shafts 7, and the transmission belt 8 is connected to the second and first groups of rotating shafts 7, when the third group of rotating shafts 7 rotates, the other two groups of rotating shafts 7 are driven to rotate inside the fixed frame 5 at the same time, thereby driving the fan blades 6 on the back to rotate, so that multiple groups of fan blades 6 rotate at the same time.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry-type transformer with a cooling structure, characterized in that: The invention comprises a protection frame (1), the inner wall of the protection frame (1) is provided with a supporting cross bar (12), the top end of the supporting cross bar (12) is fixedly connected to a water-cooling heat sink (14), the outer wall of the water-cooling heat sink (14) is fixedly connected to a second motor (13), the output end of the second motor (13) is fixedly connected to a second rotating shaft (19), the outer wall of the second rotating shaft (19) is transmission-connected to a third transmission belt (21), the outer wall of the third transmission belt (21) is fixedly connected to a plurality of groups of flow plates (20), and the inner wall of the water-cooling heat sink (14) is fixedly connected to a plurality of groups of heat sinks (18) and (22).

2. The dry-type transformer with a cooling structure according to claim 1, characterized in that: The back of the protection frame (1) is fixedly connected with three groups of connecting plates (4), the inside of the connecting plate (4) is provided with a circular hole, and the inside of the circular hole is fixedly connected with a fixing frame (5), the inside of the fixing frame (5) is rotatably sleeved with a rotating shaft (7), the back of the rotating shaft (7) is fixedly connected with a fan blade (6), the front of the rotating shaft (7) is transmission-connected with one end of a transmission belt (8), the other end of the transmission belt (8) is transmission-connected with a second group of rotating shafts (7), the outer wall of the second group of rotating shafts (7) is transmission-connected with a transmission belt (9), the outer wall of the transmission belt (9) is transmission-connected with a third group of rotating shafts (7), the front of the third group of rotating shafts (7) is fixedly connected with the output end of a motor (11), the bottom surface of the motor (11) is fixedly connected with a connection limit plate (10), and the bottom surface of the connection limit plate (10) is fixedly connected with the connecting plate (4).

3. The dry-type transformer with a cooling structure according to claim 1, characterized in that: The outer wall of the water-cooled heat dissipation cabinet (14) is fixedly connected to a plurality of groups of heat dissipation pipes (15), the outer wall of the heat dissipation pipe (15) is fixedly connected to two groups of support frames (17), and the bottom end of the support frame (17) is fixedly connected to the upper end of the support cross bar (12).

4. The dry-type transformer with a cooling structure according to claim 1, characterized in that: The bottom end of the heat sink one (18) is fixedly connected to the bottom end of the inner wall of the water-cooled heat sink (14), the top end of the heat sink two (22) is fixedly connected to the top end of the inner wall of the water-cooled heat sink (14), and the heat sink one (18) and the heat sink two (22) are arranged alternately.

5. The dry-type transformer with a cooling structure according to claim 1, characterized in that: A dry-type transformer (16) is fixedly connected to the top end of the supporting crossbar (12).

6. The dry-type transformer with a cooling structure according to claim 1, characterized in that: The front of the protection frame (1) is provided with three groups of movable doors (2), the three groups of movable doors (2) are arranged linearly, and the two sides of the protection frame (1) are provided with a plurality of groups of heat dissipation slots (3).

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