Damp-proof heat dissipation device for dry-type transformer

Abstract

The utility model relates to the technical field of heat dissipation of dry-type transformers, and discloses a moisture-proof heat dissipation device of a dry-type transformer, which comprises an isolation shell and a dry-type transformer body bolted in the isolation shell, and further comprises a vertical rod bolted on one side of an inner cavity of the isolation shell, and a mounting frame is connected to the surface of the vertical rod in a sliding manner; through cooperation of the isolation shell, the supporting plate and the power mechanism, the transverse rod can transversely move in a reciprocating mode, through arrangement of the linkage mechanism, the installation frame can ascend and descend on the surface of the vertical rod, a draught fan can evenly dissipate heat of different areas of the dry-type transformer body, and through arrangement of a filter screen and sponge, the heat dissipation effect of the dry-type transformer body is improved. Through the arrangement of the air inlet mechanism, air in the air inlet pipeline can be filtered and subjected to moisture absorption treatment, through the arrangement of the auxiliary mechanism, sponge can be squeezed for drainage, a filter screen can also be cleaned, the air filtering effect is improved, and the situation that a large amount of humid air enters the transformer and is blown to the transformer is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation of dry-type transformers, in particular to a moisture-proof heat dissipation device for dry-type transformers. Background Art

[0002] Dry-type transformer is a type of transformer without oil immersion. It uses solid insulation material instead of liquid insulation medium to isolate and protect the windings. Dry-type transformer is widely used in low-voltage power distribution, industrial power and special environment.

[0003] Dry-type transformers generate heat during normal operation. Currently, most dry-type transformers have built-in fans at the bottom for heat dissipation. However, since the fan is usually fixed at the bottom of the transformer and cannot be moved or adjusted, it is easy to cause the temperature in the bottom area of ​​the dry-type transformer to be low, while the heat accumulation in the upper area cannot be fully dissipated. In the long run, this will lead to uneven heat dissipation, which will have a certain impact on the performance and life of the dry-type transformer. At the same time, because the moisture content in humid air is high, it is usually deposited in a lower position, and the fan is located at the bottom of the dry-type transformer, which easily blows the humid air to the surface of the transformer. Over time, it may cause corrosion and oxidation reactions, causing its metal parts to be easily damaged and corroded, and will also affect the performance and life of the dry-type transformer. Utility Model Content

[0004] The utility model aims to provide a moisture-proof heat dissipation device for a dry-type transformer to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a dry-type transformer moisture-proof heat dissipation device, comprising an isolation shell and a dry-type transformer body bolted therein, and also comprising:

[0006] A vertical pole bolted to one side of the inner cavity of the isolation shell, a mounting frame slidably connected to the surface of the vertical pole, a fan mounted on the surface of the mounting frame, and an air intake duct connected to one side of the isolation shell;

[0007] A filter screen is installed at the bottom of the inner cavity of the air intake pipe, the inner cavity of the air intake pipe is bolted with a breathable plate, a sponge is arranged above the breathable plate, and the other side of the isolation shell is connected to an exhaust window;

[0008] A support plate is bolted to the bottom of the inner wall of the isolation shell, and a cross bar is arranged on one side of the support plate. The cross bar is in two groups, and the cross bar on one side is slidably connected to the support plate, and the cross bar on the other side passes through the outside of the isolation shell and is slidably connected to the inner wall at the penetration point. A power mechanism is arranged on one side of the inner wall of the isolation shell, a linkage mechanism is arranged on the inner wall of the isolation shell, and an auxiliary mechanism is arranged inside the air intake duct.

[0009] Preferably, the power mechanism includes a driving motor bolted to the inner wall of the isolation shell and a slide frame bolted between the cross bars on both sides, the output shaft of the driving motor is bolted with a curved rod, a sliding column is welded on one side of the curved rod, and one end of the sliding column extends to the inner cavity of the slide frame and is slidably connected to its inner wall.

[0010] Preferably, the linkage mechanism includes a support rod bolted to the bottom of the inner wall of the isolation shell and a rotating shaft rotatably connected between the support rods on both sides, one end of the support rod is bolted to a first gear, the surface of the cross bar is bolted to a first rack plate, the first rack plate and the first gear are meshed with each other, the other end of the support rod is bolted to a second gear, one side of the mounting frame is bolted to a second rack plate, the second rack plate and the second gear are meshed with each other.

[0011] Preferably, the auxiliary mechanism comprises an L-shaped rod bolted to one side of the mounting frame and a pressure plate bolted to the other end of the L-shaped rod, and a brush plate is bolted to one end of the cross bar on the other side.

[0012] Preferably, a support frame is bolted to one side of the isolation shell, and an inner wall of the support frame is slidably connected to the surface of the brush plate.

[0013] Preferably, both sides of the inner wall of the air intake duct are bolted with slide rails, and both sides of the pressure plate are provided with slide grooves, and the shapes of the slide grooves match those of the slide rails and are slidably connected to each other.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can make the cross bar move back and forth through the cooperation of the isolation shell, the support plate and the power mechanism, and through the setting of the linkage mechanism, the mounting frame can be raised and lowered on the surface of the vertical pole, so that the fan can evenly dissipate heat to different areas of the dry-type transformer body, thereby improving its performance and service life.

[0016] 2. The utility model can filter and absorb moisture from the air in the air intake duct by setting the filter and sponge, thereby reducing moisture on the surface of the dry-type transformer body. By setting the auxiliary mechanism, the sponge can be squeezed to drain water so that it maintains better moisture absorption performance, and the filter can be cleaned to improve its filtering effect on the air, thereby preventing a large amount of humid air from entering the interior and blowing toward the transformer itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the isolation shell, the air intake duct and the exhaust window in the utility model;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the isolation shell in the utility model;

[0020] Figure 4 It is a schematic diagram of a local structure in the utility model;

[0021] Figure 5 It is a schematic diagram of the unfolded structure of the installation frame and the upright poles in the utility model;

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the air intake pipe in the utility model;

[0023] Figure 7 It is a schematic diagram of the unfolded structure of the sponge and the breathable plate in the utility model.

[0024] In the figure: 1. isolation shell; 2. vertical pole; 3. installation frame; 4. fan; 5. support plate; 6. cross bar; 7. power mechanism; 71. drive motor; 72. slideway frame; 73. bent rod; 74. slide column; 8. auxiliary mechanism; 81. L-shaped rod; 82. pressure plate; 83. brush plate; 9. linkage mechanism; 91. support rod; 92. rotating shaft; 93. first gear; 94. first rack plate; 95. second gear; 96. second rack plate; 10. dry-type transformer body; 11. air intake duct; 12. exhaust window; 13. support frame; 14. breathable plate; 15. sponge; 16. filter; 17. slide rail; 18. slide trough. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1-7As shown, a moisture-proof heat dissipation device for a dry-type transformer comprises an isolation shell 1, wherein a dry-type transformer body 10 is bolted to the interior of the isolation shell 1, a vertical pole 2 is bolted to one side of the inner cavity of the isolation shell 1, and a mounting frame 3 is slidably connected to the surface of the vertical pole 2. There are two vertical poles 2, which are symmetrically distributed on both sides of the mounting frame 3. The connection between the vertical pole 2 and the mounting frame 3 is provided with a guide rail and a groove for use with each other, which can not only enable the mounting frame 3 to slide up and down on the surface of the vertical pole 2, but also prevent the horizontal tilting when sliding between them. A fan 4 is installed on the surface of the mounting frame 3, and the number of the fans 4 is several and they are distributed in a rectangular array. The isolation shell 1 is connected with an air inlet pipe on one side close to the vertical pole 2. The bottom of the inner cavity of the air intake duct 11 is provided with a filter screen 16 through a support frame, and the inner cavity of the air intake duct 11 and above the filter screen 16 are bolted with a breathable plate 14, and a sponge 15 is provided above the breathable plate 14. When the fan 4 is running, air is sucked in from the bottom of the air intake duct 11, and the dust and debris in the air are firstly filtered through the filter screen 16, and then the moisture in the air is captured and adsorbed through the breathable plate 14 and the sponge 15, so that relatively clean and dry air can enter the interior of the isolation shell 1, and then the surface of the dry-type transformer body 10 is blown by the fan 4 to cool down. The other side of the isolation shell 1 is connected to an exhaust window 12, and the airflow after finally flowing through the surface of the dry-type transformer body 10 will The air is discharged to the outside of the isolation shell 1 through the exhaust window 12. Since the air is discharged to the outside of the isolation shell 1 from the exhaust window 12, the external humid air will not enter from the exhaust window 12 during the operation of the device. A support plate 5 is bolted to one side of the bottom of the inner wall of the isolation shell 1. A cross bar 6 is arranged on one side of the support plate 5. There are two groups of cross bars 6. One side of the cross bar 6 passes through one side of the support plate 5 and is slidably connected with the penetration point, and the other side of the cross bar 6 passes through the outside of the isolation shell 1 and is slidably connected with the inner wall of the penetration point. A power mechanism 7 is arranged on one side of the inner wall of the isolation shell 1. The power mechanism 7 is used in conjunction with the cross bar 6 to enable it to perform reciprocating lateral movement. A linkage mechanism 9 is arranged on the inner wall of the isolation shell 1 and on one side close to the vertical pole 2. The crossbar 6 and the power mechanism 7 are used in conjunction with the linkage mechanism 9, so that the mounting frame 3 and the fan 4 can slide back and forth in a vertical direction along the surface of the vertical pole 2, and the coverage area of ​​the fan 4 on the surface of the dry-type transformer body 10 can be increased, so that the heat on the surface can be more effectively taken away by the airflow blown by the fan 4, thereby further improving the heat dissipation effect. An auxiliary mechanism 8 is arranged inside the air intake duct 11. The mounting frame 3 and the crossbar 6 are used in conjunction with the auxiliary mechanism 8, which can not only squeeze the sponge 15 to remove the moisture therein, but also keep the sponge 15 in an efficient dry state to improve its moisture absorption performance, and can also clean the filter 16 to prevent it from being covered by accumulated dust and causing blockage, thereby affecting the normal entry of air.

[0027] The power mechanism 7 includes a drive motor 71, which is bolted to the inner wall of the isolation shell 1 through a support seat, a slide frame 72 is bolted between the cross bars 6 on both sides, and the output shaft of the drive motor 71 is bolted to a bent rod 73, and a slide column 74 is welded to one side of the bent rod 73. One end of the slide column 74 extends into the inner cavity of the slide frame 72 and is slidably connected to its inner wall. When the drive motor 71 provides power to drive the bent rod 73 and the slide column 74 to rotate, the rotating slide column 74 can slide along the inner wall of the slide frame 72, and under the limiting effect of the support plate 5 and the inner wall of the isolation shell 1 on the two ends of the surface of the cross bar 6, the cross bar 6 can be reciprocated in the horizontal direction in the isolation shell 1. The cross bar 6 that reciprocates can provide a stable driving force for the operation of the linkage mechanism 9 and the auxiliary mechanism 8.

[0028] The linkage mechanism 9 includes a support rod 91 and a rotating shaft 92. The support rod 91 is bolted to the bottom of the inner wall of the isolation shell 1. There are two support rods 91. Both ends of the rotating shaft 92 penetrate to one side of the support rods 91 on both sides, and the rotation shaft 92 and the support rod 91 are fixed to each other through bearings. One end of the support rod 91 is bolted to a first gear 93, and the surface of the cross bar 6 is bolted to a first rack plate 94, and the first rack plate 94 and the first gear 93 are meshed with each other. The other end of the support rod 91 is bolted to a second gear 95, and one side of the mounting frame 3 is bolted to a second rack plate 96. The second rack plate 9 6 meshes with the second gear 95. When the power mechanism 7 makes the cross bar 6 reciprocate, the first rack plate 94 on its surface can mesh with the first gear 93, and at the same time, the rotating shaft 92 drives the second gear 95 to rotate synchronously to mesh and drive the second rack plate 96. Accordingly, the second rack plate 96 can drive the mounting frame 3 to reciprocate up and down in the vertical direction on the surface of the vertical pole 2. By changing the height of the fan 4, the air outlet of the fan 4 can dissipate heat to components in different areas on the surface of the dry-type transformer body 10, ensuring uniform and efficient heat dissipation.

[0029] The auxiliary mechanism 8 includes an L-shaped rod 81, one end of the L-shaped rod 81 is bolted to the upper side of one side of the mounting frame 3, the other end of the L-shaped rod 81 extends to the inside of the air intake duct 11, and the other end of the L-shaped rod 81 is bolted to a pressure plate 82, and a breathable grid is provided on the surface of the pressure plate 82, which can not affect the smooth passage of airflow in the air intake duct 11. The pressure plate 82 is used in conjunction with the sponge 15, and the other side of the cross bar 6 penetrates through the end of the isolation shell 1 and is bolted to a brush plate 83, and the brush plate 83 cooperates with the filter screen 16. When the power mechanism 7 makes the cross bar 6 reciprocate, it can drive the brush plate 83 to reciprocate horizontally at the bottom of the filter screen 16. The dust intercepted on the surface of the filter screen 16 can be cleaned by the friction between the brush of the brush plate 83 and the bottom of the filter screen 16, which can prevent the filter screen 16 from having poor air circulation due to dust accumulation, thereby improving the filtering efficiency of the filter screen 16. A support frame 13 is bolted to one side of the isolation shell 1, and the inner wall of the support frame 13 and the surface of the brush plate 83 are connected. The sliding connection can ensure that the brush plate 83 remains stable during the reciprocating horizontal movement to prevent excessive bending or vibration. When the mounting frame 3 drives the L-shaped rod 81 to rise and fall, the pressing plate 82 can squeeze and dehydrate the sponge 15, so that the moisture in the air absorbed inside is discharged through squeezing, which can enable the sponge 15 to continue to maintain a better moisture absorption capacity, and the moisture squeezed out of the sponge 15 will flow downward through the breathable plate 14 to the filter 16, which can flush the filter 16 and further improve the cleaning effect of the filter 16. Both sides of the inner wall of the air intake duct 11 are bolted with slide rails 17, and both sides of the pressing plate 82 are provided with slide grooves 18. The slide grooves 18 match the shapes of the slide rails 17 and are slidably connected to each other. When the pressing plate 82 squeezes the sponge 15, the slide rails 17 and the slide grooves 18 cooperate to keep the pressing plate 82 vertically lifted and lowered, preventing it from lateral deviation or tilting during movement, ensuring that it can squeeze the sponge 15 evenly.

[0030] Working principle: When in use, first start the drive motor 71 and the fan 4. The drive motor 71 can drive the curved rod 73 and the sliding column 74 to rotate, and the sliding column 74 can slide along the inner wall of the slide frame 72, so that the cross bar 6 can drive the first rack plate 94 to move back and forth in the isolation shell 1, and the first gear 93 can be meshed, so that the rotating shaft 92 drives the second gear 95 to rotate, and the rotating second gear 95 can mesh with the second rack plate 96, so that the second rack plate 96 can drive the mounting frame 3 and the fan 4 to move up and down on the surface of the vertical pole 2. By changing the height of the air outlet of the fan 4, different areas on the surface of the dry-type transformer body 10 can be evenly distributed. heat dissipation to improve the heat dissipation effect and efficiency. During this process, the reciprocating crossbar 6 can drive the brush plate 83 to move back and forth at the bottom of the filter 16. The friction between the brush plate 83 and the filter 16 can clean the dust accumulated on its surface, thereby ensuring the filtering effect of the filter 16 on the air. The mounting frame 3 can drive the L-shaped rod 81 to rise and fall synchronously when it reciprocates, so that the pressure plate 82 can squeeze the sponge 15 to discharge the moisture inside the sponge 15, so that the sponge 15 can continue to maintain a better moisture absorption capacity. The moisture squeezed out of the sponge 15 will flow to the filter 16 through the breathable plate 14, and the brush plate 83 can further improve the cleaning effect of the filter 16.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] 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 moisture-proof heat dissipation device, comprising an isolation shell (1) and a dry-type transformer body (10) bolted therein, characterized in that: Also includes: A vertical pole (2) is bolted to one side of the inner cavity of the isolation shell (1); a mounting frame (3) is slidably connected to the surface of the vertical pole (2); a fan (4) is mounted on the surface of the mounting frame (3); and an air intake duct (11) is provided in communication with one side of the isolation shell (1); A filter screen (16) is installed at the bottom of the inner cavity of the air intake pipe (11); a breathable plate (14) is bolted to the inner cavity of the air intake pipe (11); a sponge (15) is arranged above the breathable plate (14); and an exhaust window (12) is arranged in communication with the other side of the isolation shell (1); A support plate (5) is bolted to the bottom of the inner wall of the isolation shell (1), and a cross bar (6) is arranged on one side of the support plate (5). The cross bars (6) are in two groups, and the cross bars (6) on one side are slidably connected to the support plate (5), and the cross bars (6) on the other side penetrate to the outside of the isolation shell (1) and are slidably connected to the inner wall at the penetration point. A power mechanism (7) is arranged on one side of the inner wall of the isolation shell (1), and a linkage mechanism (9) is arranged on the inner wall of the isolation shell (1). An auxiliary mechanism (8) is arranged inside the air intake duct (11).

2. A moisture-proof heat dissipation device for a dry-type transformer according to claim 1, characterized in that: The power mechanism (7) comprises a driving motor (71) bolted to the inner wall of the isolation shell (1) and a slideway frame (72) bolted between the cross bars (6) on both sides; the output shaft of the driving motor (71) is bolted to a curved rod (73); a sliding column (74) is welded to one side of the curved rod (73); one end of the sliding column (74) extends to the inner cavity of the slideway frame (72) and is slidably connected to the inner wall thereof.

3. The dry-type transformer moisture-proof heat dissipation device according to claim 1, characterized in that: The linkage mechanism (9) comprises a support rod (91) bolted to the bottom of the inner wall of the isolation shell (1) and a rotating shaft (92) rotatably connected between the support rods (91) on both sides; one end of the support rod (91) is bolted to a first gear (93); the surface of the cross bar (6) is bolted to a first rack plate (94); the first rack plate (94) and the first gear (93) are meshed with each other; the other end of the support rod (91) is bolted to a second gear (95); one side of the mounting frame (3) is bolted to a second rack plate (96); the second rack plate (96) and the second gear (95) are meshed with each other.

4. The dry-type transformer moisture-proof heat dissipation device according to claim 1, characterized in that: The auxiliary mechanism (8) comprises an L-shaped rod (81) bolted to one side of the mounting frame (3) and a pressure plate (82) bolted to the other end of the L-shaped rod (81), and a brush plate (83) is bolted to one end of the cross bar (6) on the other side.

5. A moisture-proof heat dissipation device for a dry-type transformer according to claim 4, characterized in that: A support frame (13) is bolted to one side of the isolation shell (1), and the inner wall of the support frame (13) is slidably connected to the surface of the brush plate (83).

6. A moisture-proof heat dissipation device for a dry-type transformer according to claim 4, characterized in that: Slide rails (17) are bolted to both sides of the inner wall of the air intake duct (11), and slide grooves (18) are provided on both sides of the pressure plate (82). The shapes of the slide grooves (18) and the slide rails (17) match each other and are slidably connected to each other.

Images