Energy-saving high-frequency electronic transformer

Abstract

The invention belongs to the technical field of transformers, and discloses an energy-saving high-frequency electronic transformer which comprises a protection box, a protection door is hinged to one side of the protection box, a transformer body is installed in the protection box, heat dissipation holes and ventilation cavities are formed in the two sides of the protection box, the heat dissipation holes are evenly distributed, and mixing assemblies are arranged in the two ventilation cavities. After the drying agent is used, a motor can be controlled to start through a PLC, all first rotating shafts are driven to rotate through chain transmission, the rotation of the first rotating shafts drives a connecting rod to rotate, the rotation of the connecting rod drives a mixing shaft to rotate, and the rotation of the mixing shaft drives a mixing plate to rotate, so that the drying agent in a ventilation cavity is stirred; and a drying agent arranged in the ventilation cavity absorbs moisture to dehumidify the energy-saving high-frequency electronic transformer, so that the stability and the safety of equipment operation are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, and in particular relates to an energy-saving high-frequency electronic transformer. Background Art

[0002] High-frequency electronic transformers, usually referred to as high-frequency transformers, are a special type of transformer, which are widely used in modern electronic equipment and systems. Energy-saving high-frequency electronic transformers are based on traditional high-frequency electronic transformers. They use new materials, new structures and new technologies to improve efficiency and reduce losses. They have high cost performance and economic benefits. In the future, with the continuous advancement of technology and the improvement of environmental protection requirements, energy-saving high-frequency electronic transformers will usher in more development opportunities and challenges.

[0003] After searching, such as patent: CN215731275U, an energy-saving and dust-proof high-frequency transformer, including a protection box and a transformer body arranged in the protection box, the four corners of the upper end surface of the protection box are fixedly installed with support rods, and the ends of the four support rods away from the protection box are commonly fixedly connected with a solar panel, a chamber is opened in the protection box, and both sides of the protection box are centrally opened with through grooves connected to the chamber and for the heat dissipation network to be fixedly installed, and both sides of the inner wall of the chamber are fixedly installed with U-shaped plates with openings facing the heat dissipation network, and threaded rods are rotatably arranged in the two U-shaped plates, and moving blocks are threadedly installed on the outer edge surfaces of the two threaded rods, and cleaning brushes abutting the heat dissipation network are arranged on the opposite sides of the two moving blocks, and the bottom of the top of the inner wall of the chamber is centrally fixed with a bottom plate. The energy-saving and dust-proof high-frequency transformer has a reasonable structure, is convenient for saving municipal power supply, and is convenient for heat dissipation while being dust-proof, and has strong practicality;

[0004] When current energy-saving high-frequency electronic transformers are used outdoors, due to the inevitable presence of water vapor in the air, especially in rainy weather conditions, moisture will invade the internal structure of the equipment through the heat dissipation holes, thereby causing the internal insulation performance of the transformer to deteriorate, increasing the risk of short circuits, and posing a potential threat to the stable operation and safety performance of the equipment. Summary of the invention

[0005] The object of the present invention is to provide an energy-saving high-frequency electronic transformer to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an energy-saving high-frequency electronic transformer, comprising a protection box, a protection door is hinged on one side of the protection box, a transformer body is installed inside the protection box, heat dissipation holes and ventilation cavities are opened on both sides of the protection box, the heat dissipation holes are evenly distributed, and a mixing component is arranged inside the two ventilation cavities;

[0007] The mixing assembly comprises a mixing shaft arranged inside the ventilation cavity, a mixing plate is fixedly mounted on the outer wall of the mixing shaft, a plurality of the mixing shafts are evenly arranged, a first rotating shaft is embedded in the bottom of each of the mixing shafts, a connecting rod is fixedly mounted on the outer wall of each of the first rotating shafts, a first gear is fixedly mounted on the bottom end of one of the first rotating shafts, a second gear is meshedly connected to one side of the first gear, a second rotating shaft is fixedly connected to the inside of the second gear, and a motor is mounted on the top end of the second rotating shaft;

[0008] A sprocket is fixedly mounted on the outer wall of each of the first rotating shafts, and each of the sprockets is connected through a chain transmission.

[0009] As a further technical solution of the present invention, the mixing plates on the outer wall of the mixing shaft are distributed in a spiral shape.

[0010] As a further technical solution of the present invention, a limit plate is fixedly installed at the bottom end of the mixing shaft, the bottom end of the limit plate is fixedly connected to a first sliding rod, the bottom end of the first sliding rod is slidably connected to a guide plate, and the guide plate is fixedly installed on the inner wall of the protective box.

[0011] As a further technical solution of the present invention, the limit plate is slidably installed inside the protection box, and a spring is provided on the top of the limit plate.

[0012] As a further technical solution of the present invention, the mixing shaft is slidably connected to the connecting rod.

[0013] As a further technical solution of the present invention, guide grooves are provided inside the heat dissipation holes, and the guide grooves are evenly distributed in the longitudinal direction.

[0014] As a further technical solution of the present invention, a hygroscopic cotton strip is arranged inside the guide groove, and there are multiple hygroscopic cotton strips. A third rotating shaft is installed on the top of each hygroscopic cotton strip, and each third rotating shaft is installed inside the protective box through a rotating assembly.

[0015] As a further technical solution of the present invention, the rotating assembly includes a third gear fixedly mounted on the top end of the third rotating shaft, and one side of the third gear is meshedly connected with a rack plate;

[0016] A spiral groove is formed on the outer wall of one of the third rotating shafts, a second slide bar is slidably connected inside the spiral groove, a movable plate is fixedly connected to one end of the second slide bar away from the spiral groove, and the movable plate is arranged on the top of the mixing plate.

[0017] As a further technical solution of the present invention, a coil spring is installed on the outer wall of one of the third rotating shafts, and the coil spring is arranged on the inner wall of the protective box.

[0018] As a further technical solution of the present invention, a maintenance top plate and a maintenance bottom plate are respectively provided at the top and bottom ends of the ventilation cavity, and the maintenance top plate and the maintenance bottom plate are both mounted on the outer wall of the protection box by bolts.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The present invention uses a mixing component and a desiccant. After the desiccant is used, the motor can be started by controlling the PLC. When the motor is started, the second rotating shaft is driven to rotate. The rotation of the second rotating shaft drives the rotation of the second gear. The rotation of the second gear drives the rotation of the first gear. The rotation of the first gear drives the rotation of the first rotating shaft. The rotation of the first rotating shaft drives the rotation of the sprocket. When the sprocket rotates, the other first rotating shafts are driven to rotate synchronously through the chain transmission. The rotation of the first rotating shaft drives the rotation of the connecting rod. The rotation of the connecting rod drives the rotation of the mixing shaft. The rotation of the mixing shaft drives the mixing plate to rotate to stir the desiccant inside the ventilation chamber. This can not only accelerate the contact and reaction between the desiccant and the water molecules, thereby improving the drying efficiency, but also prevent the desiccant from being locally over-dry during the moisture absorption process, ensuring that the desiccant can evenly absorb moisture. The desiccant arranged inside the ventilation chamber absorbs moisture to dehumidify the energy-saving high-frequency electronic transformer, thereby improving the stability and safety of the equipment operation.

[0021] 2. The present invention moves the mixing shaft up and down. When the mixing shaft rotates, it drives the limit plate to rotate. The rotation of the limit plate drives the rotation of the first slide bar. The first slide bar is guided by the concave and convex shape of the guide plate to move up and down. The movement of the first slide bar drives the movement of the limit plate. The movement of the limit plate drives the movement of the mixing shaft, so that the mixing shaft moves up and down when stirring the desiccant, breaking the material stratification in the stirring area, thereby improving the stirring effect.

[0022] 3. The present invention arranges a rotating assembly. When the desiccant is stirred, the mixing plate rotates and contacts the moving plate to drive the moving plate to move up. The movement of the moving plate drives the movement of the second slide bar. The movement of the second slide bar is guided by the spiral groove to cause the third rotating shaft to rotate. When the third rotating shaft rotates, the hygroscopic cotton strip is twisted to facilitate the discharge of water accumulated inside, so as to restore the water absorption performance of the hygroscopic cotton strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic cross-sectional view of the overall structure of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 This is a schematic diagram of the structure of the ventilation cavity of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the moisture-absorbing cotton strip of the present invention;

[0029] Figure 7 It is a schematic diagram of the chain structure of the present invention.

[0030] In the figure: 1. protection box; 2. protection door; 3. heat dissipation hole; 4. ventilation chamber; 5. mixing shaft; 6. mixing plate; 7. first rotating shaft; 8. connecting rod; 9. sprocket; 10. chain; 11. first gear; 12. second gear; 13. second rotating shaft; 14. motor; 15. limit plate; 16. first slide bar; 17. guide plate; 18. spring; 19. maintenance bottom plate; 20. maintenance top plate; 21. bolt; 22. moisture-absorbing cotton strip; 23. third rotating shaft; 24. moving plate; 25. second slide bar; 26. spiral groove; 27. third gear; 28. rack plate; 29. ​​coil spring; 30. transformer body; 31. guide groove. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, in an embodiment of the present invention, an energy-saving high-frequency electronic transformer includes a protection box 1, a protection door 2 is hinged on one side of the protection box 1, a transformer body 30 is installed inside the protection box 1, heat dissipation holes 3 and ventilation cavities 4 are opened on both sides of the protection box 1, the heat dissipation holes 3 are evenly distributed, and the insides of the two ventilation cavities 4 are both provided with mixing components;

[0033] The mixing assembly includes a mixing shaft 5 arranged inside the ventilation chamber 4, a mixing plate 6 is fixedly installed on the outer wall of the mixing shaft 5, a plurality of mixing shafts 5 are evenly arranged, a first rotating shaft 7 is embedded in the bottom of each mixing shaft 5, a connecting rod 8 is fixedly installed on the outer wall of each first rotating shaft 7, a first gear 11 is fixedly installed at the bottom end of one of the first rotating shafts 7, a second gear 12 is meshedly connected to one side of the first gear 11, a second rotating shaft 13 is fixedly connected inside the second gear 12, and a motor 14 is installed at the top end of the second rotating shaft 13;

[0034] A sprocket 9 is fixedly mounted on the outer wall of each first rotating shaft 7 , and each sprocket 9 is connected to each other through a chain 10 .

[0035] Desiccant is provided inside the two ventilation chambers 4 to absorb moisture and improve insulation performance;

[0036] After the desiccant is used, the motor 14 can be started by controlling the PLC. When the motor 14 is started, the second rotating shaft 13 is driven to rotate. The rotation of the second rotating shaft 13 drives the rotation of the second gear 12. The rotation of the second gear 12 drives the rotation of the first gear 11. The rotation of the first gear 11 drives the rotation of the first rotating shaft 7. The rotation of the first rotating shaft 7 drives the rotation of the sprocket 9. When the sprocket 9 rotates, the other first rotating shafts 7 are driven to rotate synchronously through the chain 10. The rotation of the first rotating shaft 7 drives the rotation of the connecting rod 8. The rotation of the connecting rod 8 drives the rotation of the mixing shaft 5. The rotation of the mixing shaft 5 drives the mixing plate 6 to rotate to stir the desiccant inside the ventilation chamber 4. This can not only accelerate the contact and reaction between the desiccant and the water molecules, thereby improving the drying efficiency, but also prevent the desiccant from being partially over-dry during the moisture absorption process, ensuring that the desiccant can absorb moisture evenly. The desiccant arranged inside the ventilation chamber 4 absorbs moisture to dehumidify the energy-saving high-frequency electronic transformer, thereby improving the stability and safety of the equipment operation.

[0037] The inner wall diameter of the first gear 11 is ten N times the inner wall diameter of the second gear 12, and N is a positive integer to avoid excessive stirring speed;

[0038] Existing: CN215731275U discloses an energy-saving and dust-proof high-frequency transformer. This patent discloses the protective box 1, protective door 2 and transformer body 30 proposed in this application document. This technical means will not be described in detail here.

[0039] like Figure 2 , Figure 3 and Figure 7 As shown, the mixing plates 6 on the outer wall of the mixing shaft 5 are distributed in a spiral shape.

[0040] The desiccant can be quickly broken up during the rotational motion to prevent the desiccant from agglomerating after use and affecting the dehumidification effect.

[0041] like Figure 2 and Figure 3 As shown, a limit plate 15 is fixedly installed at the bottom end of the mixing shaft 5, a first slide bar 16 is fixedly connected to the bottom end of the limit plate 15, a guide plate 17 is slidably connected to the bottom end of the first slide bar 16, and the guide plate 17 is fixedly installed on the inner wall of the protective box 1.

[0042] When the mixing shaft 5 rotates, it drives the limit plate 15 to rotate. The rotation of the limit plate 15 drives the rotation of the first slide bar 16. The first slide bar 16 is guided by the concave and convex shape of the guide plate 17 to move up and down. The movement of the first slide bar 16 drives the movement of the limit plate 15. The movement of the limit plate 15 drives the movement of the mixing shaft 5, so that the mixing shaft 5 moves up and down when stirring the desiccant, breaking the material stratification in the stirring area, thereby improving the stirring effect.

[0043] like Figure 2 and Figure 3 As shown, the limiting plate 15 is slidably installed inside the protection box 1 , and a spring 18 is provided at the top of the limiting plate 15 .

[0044] The elastic potential energy of the spring 18 makes the limit plate 15 always have a tendency to move downward. When the limit plate 15 rotates, the first slide bar 16 cooperates with the guide plate 17 to make the limit plate 15 move up and down reciprocatingly.

[0045] like Figure 3 and Figure 7 As shown, the mixing shaft 5 and the connecting rod 8 are slidably connected.

[0046] The connecting rod 8 is slidably connected so that the mixing shaft 5 is rotationally connected to the first rotating shaft 7 during the process of moving up and down.

[0047] like Figure 3 and Figure 5 As shown, the heat dissipation hole 3 is provided with guide grooves 31 inside, and the guide grooves 31 are evenly distributed in the longitudinal direction.

[0048] In rainy weather conditions, when rainwater flows into the heat dissipation holes 3, the rainwater can be guided downward by the guide grooves 31, thereby reducing the amount of rainwater entering the protection box 1, and indirectly protecting the transformer body 30;

[0049] The bottommost horizontal row of heat dissipation holes 3 is arranged to be inclined outwards, which is helpful for rainwater to drain out of the device.

[0050] like Figure 2 , Figure 3 and Figure 7 As shown, a moisture-absorbing cotton strip 22 is arranged inside the guide groove 31, and a plurality of moisture-absorbing cotton strips 22 are arranged. A third rotating shaft 23 is installed at the top of each moisture-absorbing cotton strip 22, and each third rotating shaft 23 is installed inside the protective box 1 through a rotating component.

[0051] By absorbing the moisture in the air entering the heat dissipation hole 3 through the moisture-absorbing cotton strip 22, not only the possibility of moisture entering the inside of the transformer can be further reduced, but also the service life of the desiccant in the ventilation cavity 4 can be prolonged.

[0052] like Figure 4 and Figure 6As shown, the rotating assembly includes a third gear 27 fixedly mounted on the top of the third rotating shaft 23, and one side of the third gear 27 is meshedly connected with a rack plate 28;

[0053] A spiral groove 26 is formed on the outer wall of one of the third rotating shafts 23 , and a second slide bar 25 is slidably connected inside the spiral groove 26 . A moving plate 24 is fixedly connected to one end of the second slide bar 25 away from the spiral groove 26 . The moving plate 24 is arranged on the top of the mixing plate 6 .

[0054] The bottom end of the moisture-absorbing cotton strip 22 is fixedly connected to the inner wall of the protection box 1;

[0055] The second slide bar 25 is slidably mounted on the inner wall of the protection box 1. The inner wall of the protection box 1 is provided with a slide groove for the second slide bar 25 to slide up and down, thereby limiting its position.

[0056] When the desiccant is stirred, the mixing plate 6 rotates and contacts the movable plate 24, driving the movable plate 24 to move upward. The movement of the movable plate 24 drives the movement of the second slide bar 25. The movement of the second slide bar 25 is guided by the spiral groove 26 to rotate the third rotating shaft 23. When the third rotating shaft 23 rotates, the moisture-absorbing cotton strip 22 is twisted to facilitate the discharge of water accumulated inside, so as to restore the water absorption performance of the moisture-absorbing cotton strip 22.

[0057] like Figure 4 and Figure 6 As shown, a coil spring 29 is installed on the outer wall of one of the third rotating shafts 23 , and the coil spring 29 is arranged on the inner wall of the protective box 1 .

[0058] Since the mixing plate 6 is arranged in a spiral shape, when the top end of the mixing plate 6 contacts the movable plate 24, it drives the third rotating shaft 23 to rotate. When the third rotating shaft 23 rotates, the coil spring 29 deforms to store elastic potential energy. When the top end of the mixing plate 6 does not contact the movable plate 24, the elastic potential energy is released by the coil spring 29 to cause the third rotating shaft 23 to reverse and reset, so that the third rotating shaft 23 rotates reciprocatingly, thereby twisting the moisture-absorbing cotton strip 22.

[0059] like Figures 1 to 7 As shown, a maintenance top plate 20 and a maintenance bottom plate 19 are respectively provided at the top and bottom of the ventilation cavity 4 , and both the maintenance top plate 20 and the maintenance bottom plate 19 are mounted on the outer wall of the protection box 1 by bolts 21 .

[0060] The maintenance bottom plate 19 and the maintenance top plate 20 are removed by bolts 21 to replace the desiccant inside the ventilation chamber 4 .

[0061] Working principle and usage process:

[0062] When the energy-saving high-frequency electronic transformer is used outdoors, the desiccant stored in the ventilation cavity 4 absorbs moisture entering the heat dissipation hole 3 from the transformer body 30, thereby protecting the transformer body 30;

[0063] After the desiccant is used, the motor 14 can be started by controlling the PLC. When the motor 14 is started, the second rotating shaft 13 is driven to rotate. The rotation of the second rotating shaft 13 drives the rotation of the second gear 12. The rotation of the second gear 12 drives the rotation of the first gear 11. The rotation of the first gear 11 drives the rotation of the first rotating shaft 7. The rotation of the first rotating shaft 7 drives the rotation of the sprocket 9. When the sprocket 9 rotates, the other first rotating shafts 7 are driven to rotate synchronously through the chain 10. The rotation of the first rotating shaft 7 drives the rotation of the connecting rod 8. The rotation of the connecting rod 8 drives the rotation of the mixing shaft 5. The rotation of the mixing shaft 5 drives the mixing plate 6 to rotate to stir the desiccant inside the ventilation chamber 4. This can not only accelerate the contact and reaction between the desiccant and the water molecules, thereby improving the drying efficiency, but also prevent the desiccant from being partially over-dry during the moisture absorption process, ensuring that the desiccant can absorb moisture evenly. The desiccant arranged inside the ventilation chamber 4 absorbs moisture to dehumidify the energy-saving high-frequency electronic transformer, thereby improving the stability and safety of the equipment operation.

[0064] When the mixing shaft 5 rotates, the limiting plate 15 is driven to rotate, and the rotation of the limiting plate 15 drives the rotation of the first slide bar 16, and the first slide bar 16 is guided by the concave-convex shape of the guide plate 17 to move up and down, and the movement of the first slide bar 16 drives the movement of the limiting plate 15, and the movement of the limiting plate 15 drives the movement of the mixing shaft 5, so that the mixing shaft 5 moves up and down when stirring the desiccant, breaking the material stratification in the stirring area;

[0065] When the mixing plate 6 rotates and contacts the moving plate 24, the moving plate 24 is driven to move upward, and the movement of the moving plate 24 drives the movement of the second slide bar 25. The movement of the second slide bar 25 is guided by the spiral groove 26 to rotate the third rotating shaft 23. When the third rotating shaft 23 rotates, the moisture-absorbing cotton strip 22 is twisted to facilitate the discharge of the water accumulated inside through the guide groove 31 and the heat dissipation hole 3.

[0066] Finally, the maintenance bottom plate 19 and the maintenance top plate 20 are removed by bolts 21 , and the desiccant inside the ventilation cavity 4 is replaced.

[0067] 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. An energy-saving high-frequency electronic transformer, comprising a protective box (1), characterized in that: A protective door (2) is hingedly connected to one side of the protective box (1), a transformer body (30) is installed inside the protective box (1), heat dissipation holes (3) and ventilation cavities (4) are provided on both sides of the protective box (1), the heat dissipation holes (3) are evenly distributed, and a mixing component is provided inside the two ventilation cavities (4); The mixing assembly comprises a mixing shaft (5) arranged inside the ventilation chamber (4), a mixing plate (6) being fixedly mounted on the outer wall of the mixing shaft (5), a plurality of the mixing shafts (5) being evenly arranged, a first rotating shaft (7) being embedded in the bottom of each mixing shaft (5), a connecting rod (8) being fixedly mounted on the outer wall of each first rotating shaft (7), a first gear (11) being fixedly mounted on the bottom end of one of the first rotating shafts (7), a second gear (12) being meshingly connected to one side of the first gear (11), a second rotating shaft (13) being fixedly connected to the inside of the second gear (12), and a motor (14) being mounted on the top end of the second rotating shaft (13); A sprocket (9) is fixedly mounted on the outer wall of each of the first rotating shafts (7), and each of the sprockets (9) is connected in transmission via a chain (10).

2. The energy-saving high-frequency electronic transformer according to claim 1, characterized in that: The mixing plates (6) on the outer wall of the mixing shaft (5) are distributed in a spiral shape.

3. The energy-saving high-frequency electronic transformer according to claim 1, characterized in that: A limit plate (15) is fixedly mounted on the bottom end of the mixing shaft (5), a first slide bar (16) is fixedly connected to the bottom end of the limit plate (15), a guide plate (17) is slidably connected to the bottom end of the first slide bar (16), and the guide plate (17) is fixedly mounted on the inner wall of the protective box (1).

4. The energy-saving high-frequency electronic transformer according to claim 3, characterized in that: The limiting plate (15) is slidably mounted inside the protection box (1), and a spring (18) is provided at the top end of the limiting plate (15).

5. The energy-saving high-frequency electronic transformer according to claim 1, characterized in that: The mixing shaft (5) is slidably connected to the connecting rod (8).

6. The energy-saving high-frequency electronic transformer according to claim 1, characterized in that: The heat dissipation hole (3) is provided with guide grooves (31) inside, and the guide grooves (31) are evenly distributed in the longitudinal direction.

7. The energy-saving high-frequency electronic transformer according to claim 6, characterized in that: A moisture-absorbing cotton strip (22) is arranged inside the guide groove (31), and a plurality of moisture-absorbing cotton strips (22) are arranged. A third rotating shaft (23) is installed at the top end of each moisture-absorbing cotton strip (22), and each third rotating shaft (23) is installed inside the protective box (1) through a rotating component.

8. The energy-saving high-frequency electronic transformer according to claim 7, characterized in that: The rotating assembly comprises a third gear (27) fixedly mounted on the top end of the third rotating shaft (23), and one side of the third gear (27) is meshingly connected with a rack plate (28); A spiral groove (26) is formed on the outer wall of one of the third rotating shafts (23), a second sliding rod (25) is slidably connected inside the spiral groove (26), and a movable plate (24) is fixedly connected to one end of the second sliding rod (25) away from the spiral groove (26), and the movable plate (24) is arranged on the top of the mixing plate (6).

9. The energy-saving high-frequency electronic transformer according to claim 7, characterized in that: A coil spring (29) is installed on the outer wall of one of the third rotating shafts (23), and the coil spring (29) is arranged on the inner wall of the protective box (1).

10. The energy-saving high-frequency electronic transformer according to claim 1, characterized in that: A maintenance top plate (20) and a maintenance bottom plate (19) are respectively provided at the top and bottom ends of the ventilation cavity (4), and both the maintenance top plate (20) and the maintenance bottom plate (19) are mounted on the outer wall of the protection box (1) by means of bolts (21).

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