Dry-type transformer

Abstract

The invention belongs to the technical field of transformers, and particularly relates to a dry-type transformer which comprises a shell, a sealing door is arranged on one side of the shell, and a transformer body is mounted in the shell; a water storage tank is formed in the shell and used for storing water, and the water is used for reducing noise when the transformer body works; a water inlet groove is formed in the top surface of the shell, and the water inlet groove is communicated with the water storage groove; the water storage tank is filled with water, then the end opening of the water storage tank is sealed by means of the sealing plate, at the moment, when noise generated during working of the transformer body is spread in water, a large amount of sound energy is consumed through friction and viscous effects of sound waves and water molecules, spreading of the sound waves can be greatly hindered, and therefore the noise reduction effect is achieved; and meanwhile, the water can absorb heat generated when the transformer body works, so that the cooling effect is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, in particular to a dry-type transformer. BACKGROUND

[0002] The dry-type transformer is a kind of transformer whose iron core and coil are not immersed in insulating oil. It uses high-performance solid insulating materials such as epoxy resin for casting or winding encapsulation, thus having the remarkable advantages of flame retardant, fireproof, explosion-proof, non-polluting, and maintenance-free. Its structure is compact, and it is safe and reliable in operation, so it is widely used in indoor and outdoor places.

[0003] A patent of Chinese patent application CN202411420590.3 discloses a noise reduction dry-type transformer, and its technical solution points are: including a dry-type transformer body and a monitoring device arranged outside the dry-type transformer body, a damping pad is arranged below the dry-type transformer body, and a noise reduction protective shell for shielding and protecting the dry-type transformer body is fixedly installed outside the damping pad.

[0004] However, the above-mentioned technology often has the following defects: installing the dry-type transformer in the noise reduction protective shell can effectively reduce the noise during equipment operation, but it also brings challenges to heat dissipation. Since the dry-type transformer continuously generates heat during operation, the internal heat accumulation is more significant in the summer outdoor high-temperature environment. If the shell is poorly ventilated and dissipates heat, it will seriously affect the heat dissipation efficiency of the transformer, which may cause the equipment temperature to rise too high, thereby affecting its normal working condition and service life. Therefore, the present application provides a dry-type transformer. SUMMARY

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art.

[0006] The technical solution adopted by the application to solve its technical problems is: the dry-type transformer comprises a shell, a sealing door is arranged on one side of the shell, and a transformer body is installed in the shell; a water storage tank is formed in the shell, the water storage tank is used for storing water, and the water is used for noise reduction when the transformer body works; a water inlet groove is formed in the top surface of the shell, the water inlet groove is communicated with the water storage tank, and a sealing assembly for sealing the water storage tank is arranged on the shell.

[0007] Preferably, the sealing assembly comprises a connecting rod fixed on the shell, an electric telescopic rod is fixedly connected to the end of the connecting rod away from the shell, a sealing plate is fixedly connected to the output end of the electric telescopic rod, the sealing plate is used for sealing the port of the water storage tank, and a rainwater sensor is fixedly connected to the top end of the electric telescopic rod.

[0008] Preferably, the bottom surface of the sealing plate is provided with a rotating shaft, the rotating shaft is provided with a slide rod, the surface of the slide rod is fixedly connected with multiple sets of stirring blades, and a temperature sensor is provided inside the housing.

[0009] Preferably, a pair of connecting pipes are connected inside the water storage tank, and hollow elastic rings are provided on the connecting pipes. Sealing strips are fixedly connected to both the inner and outer walls of the sealing plate.

[0010] Preferably, the bottom end of the rotating shaft is provided with a moving groove, the slide rod is slidably connected to the inner wall of the moving groove, a second spring is fixedly connected between the top surface of the slide rod and the inner wall of the moving groove, and a moving component for controlling the slide rod to move up and down is provided on the sealing plate.

[0011] Preferably, the moving component includes a pair of grooves formed on the bottom surface of the sealing plate, a moving plate is slidably connected in the grooves, a second spring is fixedly connected between the top surface of the moving plate and the inner wall of the groove, a pair of first connecting grooves communicating with the moving grooves are formed on the rotating shaft, and a pair of second connecting grooves communicating with the connecting grooves and the grooves are formed in the sealing plate.

[0012] Preferably, the top surface of the housing is provided with a mounting groove, a motor is installed in the mounting groove, and a fan blade is fixedly connected to the output end of the motor.

[0013] Preferably, a drain pipe is connected to the water storage tank, and a pair of cleaning plates are provided in the water storage tank. The side of the cleaning plates that is far apart from each other is attached to the inner wall of the water storage tank, and a fixing rod is fixedly connected to the side of the cleaning plates that is close to each other. A float plate is fixedly connected to the top surface of the cleaning plates.

[0014] Preferably, the bottom surface of the cleaning plate has a groove, a sliding plate is provided on the groove, and a set of bristles is fixedly connected to the side of the sliding plate away from the fixed rod.

[0015] Preferably, the cleaning plate has a hollow groove corresponding to the groove, a magnetic plate that is magnetically attracted to the sliding plate is slidably connected in the hollow groove, the sliding plate is slidably connected to the inner wall of the groove, and an electromagnet that is magnetically attracted to the magnetic plate is fixedly connected in the hollow groove.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. This invention fills the water storage tank with water and then seals the port of the water storage tank with a sealing plate. When the noise generated by the transformer body is working, it will be propagated in the water. The friction and adhesion between the sound waves and water molecules will consume a lot of sound energy, which will greatly hinder the propagation of sound waves, thereby achieving the effect of noise reduction. At the same time, the water can also absorb the heat generated by the transformer body during operation, thereby achieving the effect of cooling.

[0018] 2. When the temperature sensor in this invention detects that the temperature inside the housing is too high, it can control the sealing plate to move up and down by the output end of the electric telescopic rod. At this time, the sealing plate will drive the rotating shaft to move up and down, and the water will push the stirring blade to rotate, so that the stirring blade can stir the water, thereby keeping the water in a flowing state to improve the heat absorption effect, thereby further improving the cooling effect on the transformer body. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the shell structure in this invention;

[0021] Figure 2 yes Figure 1 A schematic diagram of the structure after the sealing door has been removed;

[0022] Figure 3 This is a schematic diagram of the internal structure of the shell in this invention;

[0023] Figure 4 yes Figure 3 Enlarged view of point A;

[0024] Figure 5 This is a schematic diagram of the structure of the float plate and cleaning plate in the water storage tank in this invention;

[0025] Figure 6 yes Figure 5 Enlarged view of point B.

[0026] In the diagram: 1. Shell; 2. Sealing door; 3. Transformer body; 4. Water inlet tank; 5. Water storage tank; 6. Connecting rod; 7. Electric telescopic rod; 8. Sealing plate; 9. Connecting pipe; 10. Elastic ring; 11. Sealing strip; 12. Rotating shaft; 13. Slide rod; 14. Stirring blade; 15. Slide groove; 16. First connecting groove; 17. Moving plate; 18. Second connecting groove; 19. Mounting groove; 20. Motor; 21. Fan blade; 22. Cleaning plate; 23. Floating plate; 24. Groove; 25. Slide plate; 26. Brush bristles; 27. Hollow groove; 28. Magnetic plate; 29. ​​Electromagnet; 30. Fixing rod. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0028] Example 1: As Figures 1 to 4As shown in the figure, a dry-type transformer according to an embodiment of the present invention includes a housing 1, a sealing door 2 provided on one side of the housing 1, a transformer body 3 installed inside the housing 1, a water storage tank 5 provided inside the housing 1 for storing water, and the water for reducing noise when the transformer body 3 is working; a water inlet 4 provided on the top surface of the housing 1, the water inlet 4 communicating with the water storage tank 5, and a sealing assembly provided on the housing 1 for sealing the water storage tank 5;

[0029] This application allows the transformer body 3 to be installed into the housing 1 by opening the sealing door 2. After installation, the sealing door 2 is closed, and water is poured in from the water inlet 4. The water will then enter the water storage tank 5. Once the water storage tank 5 is full, the port of the water storage tank 5 is sealed with a sealing component. When the noise generated by the transformer body 3 during operation propagates in the water, the friction and adhesion between the sound waves and water molecules will consume a large amount of sound energy, which will greatly hinder the propagation of sound waves, thereby achieving the effect of noise reduction. At the same time, the water can also absorb the heat generated by the transformer body 3 during operation, thereby achieving the effect of cooling. In hot summer, the water can block the external heat and prevent the high temperature from affecting the transformer body 3 inside the housing 1. Through the above mechanism, both noise reduction and cooling of the transformer body 3 can be achieved.

[0030] The sealing assembly includes a connecting rod 6 fixed to the housing 1. An electric telescopic rod 7 is fixedly connected to one end of the connecting rod 6 away from the housing 1. A sealing plate 8 is fixedly connected to the output end of the electric telescopic rod 7. The sealing plate 8 is used to seal the port of the water storage tank 5. A rain sensor is fixedly connected to the top end of the electric telescopic rod 7.

[0031] When water needs to be added to the water storage tank 5, the sealing plate 8 is moved upward by the output end of the electric telescopic rod 7, and then water is added to the water storage tank 5. After the water is added, the sealing plate 8 can be controlled to seal the port of the water storage tank 5. Since the water will decrease during daily use, when it rains, the sensor will detect the rainwater and activate the electric telescopic rod 7, causing the output end of the electric telescopic rod 7 to move the sealing plate 8 upward. At this time, the rainwater can enter the water storage tank 5 through the water inlet trough 4 to replenish the water in the water storage tank 5. The electric telescopic rod 7 will control the sealing plate 8 to seal the port of the water storage tank 5 after two hours.

[0032] The bottom surface of the sealing plate 8 is provided with a rotating shaft 12, and a sliding rod 13 is provided on the rotating shaft 12. Multiple sets of stirring blades 14 are fixedly connected to the surface of the sliding rod 13. A temperature sensor is provided inside the housing 1. In this application, when the temperature sensor senses that the temperature inside the housing 1 is too high, the output end of the electric telescopic rod 7 can control the sealing plate 8 to move up and down. At this time, the sealing plate 8 will drive the rotating shaft 12 to move up and down. At this time, the water will push the stirring blades 14 to rotate, so that the stirring blades 14 can agitate the water, thereby keeping the water in a flowing state to improve the heat absorption effect, thereby further improving the cooling effect on the transformer body 3.

[0033] A pair of connecting pipes 9 are connected inside the water storage tank 5. A hollow elastic ring 10 is provided on the connecting pipe 9. Sealing strips 11 are fixedly connected to the inner and outer walls of the sealing plate 8. When the temperature inside the shell 1 is too high, the output end of the electric telescopic rod 7 can control the sealing plate 8 to move downward. At this time, due to the sealing strip 11, when the sealing plate 8 moves downward, it will push the water in the water storage tank 5 from the connecting pipe 9 into the elastic ring 10. At this time, the elastic ring 10 will expand. When the sealing plate 8 moves upward, the elastic ring 10 will contract due to its own elasticity. At this time, the water in the elastic ring 10 will flow back from the connecting pipe 9 into the water storage tank 5. By controlling the sealing plate 8 to move up and down in this way, the water in the water storage tank 5 can be better circulated. At the same time, the connecting pipe 9 extends into the shell 1, which can further improve the cooling effect.

[0034] The bottom end of the rotating shaft 12 is provided with a moving groove. The slide rod 13 is slidably connected to the inner wall of the moving groove. A second spring is fixedly connected between the top surface of the slide rod 13 and the inner wall of the moving groove. The sealing plate 8 is provided with a moving component for controlling the slide rod 13 to move up and down. In this application, when the stirring blade 14 stirs the water, the moving component can control the slide rod 13 to move up and down. At this time, the stirring blade 14 on the slide rod 13 will also move up and down, thereby increasing the area of ​​the stirring blade 14 to stir the water and improving the water temperature uniformity.

[0035] The moving assembly includes a pair of grooves 15 formed on the bottom surface of the sealing plate 8. A moving plate 17 is slidably connected within the grooves 15. A second spring is fixedly connected between the top surface of the moving plate 17 and the inner wall of the groove 15. A pair of first connecting grooves 16 communicating with the moving grooves are formed on the rotating shaft 12. A pair of second connecting grooves 18 communicating with the connecting grooves and the grooves 15 are formed within the sealing plate 8. When the sealing plate 8 moves downward, water flows into the elastic ring 10. As the elastic ring 10 continues to expand, the water pressure in the water storage tank 5 increases. At this time, the water pushes the moving plate 17 upward, thereby allowing the moving plate 17 to push the gas in the groove 15 from the second connecting groove 18 into the first connecting groove 16. Finally, the gas enters the moving groove and pushes the sliding rod 13 to move. When the sealing plate 8 moves upward, the water in the elastic ring 10 flows back into the water storage tank 5. At this time, the water pressure decreases. The second spring pushes the moving plate 17 to reset, and the first spring also controls the sliding rod 13 to move upward.

[0036] The top surface of the housing 1 is provided with a mounting groove 19, and a motor 20 is installed in the mounting groove 19. The output end of the motor 20 is fixedly connected to a fan blade 21. When the temperature inside the housing 1 is too high, the motor 20 can be started to control the fan blade 21 to rotate. At this time, the wind generated by the fan blade 21 will blow directly onto the transformer body 3, thereby cooling the transformer body 3.

[0037] Example 2: Figures 5 to 6 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a drain pipe is connected to the water storage tank 5, and a pair of cleaning plates 22 are provided in the water storage tank 5. The side of the cleaning plates 22 that is far apart from each other is attached to the inner wall of the water storage tank 5, and a fixing rod 30 is fixedly connected to the side of the cleaning plates 22 that is close to each other. A float plate 23 is fixedly connected to the top surface of the cleaning plates 22. Due to prolonged use of water, scale will be generated on the inner wall of the water storage tank 5. This scale will affect the cooling effect. At this time, the water in the water storage tank 5 can be replaced regularly. The water can be discharged from the drain pipe. When the water is discharged, the cleaning plates 22 will move downward. At this time, the cleaning plates 22 will scrape off the scale on the inner wall of the water storage tank 5, thereby achieving the effect of cleaning the inner wall of the water storage tank 5 and avoiding affecting the cooling effect inside the shell 1. The fixing rod 30 is set to avoid the rotating shaft 12. After the water is discharged, water is added back to the water storage tank 5. At this time, the float plate 23 will drive the cleaning plates 22 to move upward due to buoyancy.

[0038] The bottom surface of the cleaning plate 22 is provided with a groove 24, and a sliding plate 25 is provided on the groove 24. A set of bristles 26 is fixedly connected to the side of the sliding plate 25 away from the fixed rod 30. When the cleaning plate 22 moves downward, the bristles 26 can brush the more stubborn scale, thereby improving the cleaning effect of scale.

[0039] The cleaning plate 22 has a hollow groove 27 corresponding to the groove 24. A magnetic plate 28 that is magnetically attracted to the slide plate 25 is slidably connected in the hollow groove 27. The slide plate 25 is slidably connected to the inner wall of the groove 24. An electromagnet 29 that is magnetically attracted to the magnetic plate 28 is fixedly connected in the hollow groove 27. When cleaning scale, the brush bristles 26 in this application can allow the electromagnet 29 to control the magnetic plate 28 to move up and down. When the electromagnet 29 is activated, it will attract the magnetic plate 28 to move upward. When it is closed, the magnetic plate 28 will move downward due to gravity. When the magnetic plate 28 moves up and down, it will drive the slide plate 25 to move synchronously, so that the brush bristles 26 can brush and clean the scale on the inner wall of the water storage tank 5, further improving the cleaning effect of scale.

[0040] Working Principle: The transformer body 3 is installed into the housing 1 by opening the sealing door 2. After installation, the sealing door 2 is closed, and water is poured in through the water inlet 4. The water then enters the water storage tank 5. Once the water storage tank 5 is full, the sealing assembly seals the port of the water storage tank 5. The noise generated by the transformer body 3 during operation will propagate through the water. The friction and adhesion between the sound waves and water molecules will consume a large amount of sound energy, greatly hindering the propagation of sound waves, thus achieving noise reduction. Simultaneously, the water can absorb the heat generated by the transformer body 3 during operation, achieving a cooling effect. In hot summers, the water can block external heat, preventing high temperatures from affecting the transformer body 3 inside the housing 1. The aforementioned mechanism can both reduce noise and cool the transformer body 3. When water needs to be added to the water storage tank 5, the sealing plate 8 is moved upward by the output end of the electric telescopic rod 7, and then water is added to the water storage tank 5. After the water is added, the sealing plate 8 can be controlled to seal the port of the water storage tank 5. Since the water will decrease during daily use, when it rains, the sensor will detect the rainwater and activate the electric telescopic rod 7, so that the output end of the electric telescopic rod 7 drives the sealing plate 8 to move upward. At this time, the rainwater can enter the water storage tank 5 through the water inlet trough 4 to replenish the water in the water storage tank 5. The electric telescopic rod 7 will control the sealing plate 8 to seal the port of the water storage tank 5 after two hours.

[0041] In this application, when the temperature sensor detects that the temperature inside the housing 1 is too high, the output end of the electric telescopic rod 7 can control the sealing plate 8 to move up and down. At this time, the sealing plate 8 will drive the rotating shaft 12 to move up and down. The water will push the stirring blade 14 to rotate, so that the stirring blade 14 can stir the water, thereby making the water flow and improving the heat absorption effect, thus further improving the cooling effect on the transformer body 3. When the temperature inside the housing 1 is too high, the output end of the electric telescopic rod 7 can control the sealing plate 8 to move down. At this time, due to the sealing strip 11, when the sealing plate 8 moves down, the sealing plate 8 will push the water in the water storage tank 5 from the connecting pipe 9 into the elastic ring 10. At this time, the elastic ring 10 will expand. When the sealing plate 8 moves up, the elastic ring 10 will contract due to its own elasticity. At this time, the water in the elastic ring 10 will flow back from the connecting pipe 9 into the water storage tank 5. By controlling the sealing plate 8 to move up and down in this way, the water in the water storage tank 5 can flow better. At the same time, the connecting pipe 9 extends into the housing 1, which can further improve the cooling effect.

[0042] When the stirring blade 14 agitates the water, the movable component can control the slide rod 13 to move up and down. At this time, the stirring blade 14 on the slide rod 13 will also move up and down, thereby increasing the area of ​​the stirring blade 14 agitating the water and improving the water temperature uniformity. When the sealing plate 8 moves downward, the water will enter the elastic ring 10. As the elastic ring 10 continues to expand, the water pressure in the water storage tank 5 will increase. At this time, the water will push the movable plate 17 to move upward, thereby allowing the movable plate 17 to push the gas in the slide groove 15 from the second connecting groove 18 into the first connecting groove 16, and finally into the movable groove to push the slide rod 13 to move. When the sealing plate 8 moves upward, the water in the elastic ring 10 will flow back into the water storage tank 5. At this time, the water pressure will decrease. At this time, the second spring will push the movable plate 17 to reset, and the first spring will also control the slide rod 13 to move upward.

[0043] When the temperature inside the casing 1 is too high, the motor 20 can be started to control the fan blade 21 to rotate. At this time, the wind generated by the fan blade 21 will blow directly onto the transformer body 3, thereby cooling the transformer body 3.

[0044] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0045] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dry-type transformer, comprising a shell (1), one side of the shell (1) is provided with a sealing door (2), a transformer body (3) is installed in the shell (1); characterized in that A water storage tank (5) is formed in the shell (1), the water storage tank (5) is used for storing water, and the water is used for noise reduction when the transformer body (3) works; A water inlet groove (4) is formed in the top surface of the shell (1), the water inlet groove (4) is communicated with the water storage tank (5), and a sealing assembly for sealing the water storage tank (5) is arranged on the shell (1).

2. A dry-type transformer according to claim 1, characterized in that: The sealing assembly comprises a connecting rod (6) fixed on the shell (1), one end of the connecting rod (6) away from the shell (1) is fixedly connected with an electric telescopic rod (7), the output end of the electric telescopic rod (7) is fixedly connected with a sealing plate (8), the sealing plate (8) is used for sealing the port of the water storage tank (5), and the top end of the electric telescopic rod (7) is fixedly connected with a rainwater sensor.

3. A dry-type transformer according to claim 2, characterized in that: The bottom surface of the sealing plate (8) is provided with a rotating shaft (12) connected in rotation, the rotating shaft (12) is provided with a sliding rod (13), the surface of the sliding rod (13) is fixedly connected with a plurality of stirring blades (14), and the shell (1) is provided with a temperature sensor.

4. A dry-type transformer according to claim 3, characterized in that: The water storage tank (5) is communicated with a pair of connecting pipes (9), the connecting pipes (9) are provided with hollow elastic rings (10), and the inner side wall and the outer side wall of the sealing plate (8) are fixedly connected with sealing strips (11).

5. A dry-type transformer according to claim 4, characterized in that: The bottom end of the rotating shaft (12) is provided with a moving groove, the sliding rod (13) is sealingly and slidably connected with the inner wall of the moving groove, a second spring is fixedly connected between the top surface of the sliding rod (13) and the inner wall of the moving groove, and the sealing plate (8) is provided with a moving assembly for controlling the sliding rod (13) to move up and down.

6. A dry-type transformer according to claim 5, characterized in that: The moving assembly comprises a pair of sliding grooves (15) formed in the bottom surface of the sealing plate (8), a moving plate (17) is sealingly and slidably connected in the sliding groove (15), a second spring is fixedly connected between the top surface of the moving plate (17) and the inner wall of the sliding groove (15), a pair of first connecting grooves (16) are formed in the rotating shaft (12) and communicated with the moving groove, and a pair of second connecting grooves (18) are formed in the sealing plate (8) and communicated with the connecting grooves and the sliding grooves (15).

7. A dry-type transformer as claimed in claim 1, characterized in that: The top surface of the shell (1) is provided with a mounting groove (19), the mounting groove (19) is mounted with a motor (20), and the output end of the motor (20) is fixedly connected with a fan blade (21).

8. A dry-type transformer according to claim 3, characterized in that: The water storage tank (5) is communicated with a drain pipe, the water storage tank (5) is provided with a pair of cleaning plates (22), the sides of the cleaning plates (22) away from each other are attached to the inner wall of the water storage tank (5), the sides of the cleaning plates (22) close to each other are fixedly connected with a fixed rod (30), and the top surface of the cleaning plate (22) is fixedly connected with a floating plate (23).

9. A dry-type transformer according to claim 8, characterized in that: The bottom surface of the cleaning plate (22) is provided with a groove (24), the groove (24) is provided with a sliding plate (25), and one group of brush hairs (26) is fixedly connected to the side of the sliding plate (25) away from the fixed rod (30).

10. A dry-type transformer according to claim 9, characterized in that: The cleaning plate (22) is provided with a hollow groove (27) corresponding to the groove (24), the hollow groove (27) is slidably connected with a magnetic plate (28) magnetically attracted to a sliding plate (25), the sliding plate (25) is slidably connected with the inner wall of the groove (24), and the hollow groove (27) is fixedly connected with an electromagnet (29) magnetically attracted to the magnetic plate (28).

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