A high voltage dry-type transformer with protection function

Abstract

The present invention discloses a high-voltage dry-type transformer with a protective function, and relates to the technical field of dry-type transformers. The present invention includes a protective shell, a plurality of rubber columns are arranged at the bottom of the inner wall of the protective shell, a transformer body is fixedly installed on the top of the plurality of rubber columns, the rubber columns are distributed at the four corners of the bottom of the transformer body, and a cooling assembly is arranged at the center of the bottom of the transformer body, a hanging ring is fixedly installed on the top of the transformer body, two electric push rods are fixedly installed at the top corners of the inner wall of the protective shell, and the two electric push rods are symmetrically distributed with respect to the axis of the protective shell, a circular frame is fixedly installed at the bottom of the telescopic end of the electric push rod, and the outer wall of the circular frame is slidably connected to the inner wall of the protective shell. The present invention can effectively avoid collision with the wall when the transformer body is installed indoors, and prevent the epoxy resin on the surface of the transformer body from being easily worn, resulting in an increased risk of short circuit of the transformer during long-term use in the later stage.

Description

Technical Field

[0001] The invention relates to the technical field of dry-type transformers, in particular to a high-voltage dry-type transformer with a protection function. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are the primary coil, secondary coil and iron core. At the same time, the transformer is the basic equipment for power transmission and distribution. It is widely used in industry, agriculture, transportation, urban communities and other fields, providing convenient power resources for social development.

[0003] The patent with patent announcement number CN116013647B discloses a high-voltage dry-type transformer with a protective function, which relates to the technical field of transformers. The high-voltage dry-type transformer with a protective function comprises a bottom rod, the upper surface of the bottom rod is fixedly connected to a first support rod, the upper surface of the first support rod is fixedly connected to a cushion block, the upper surface of the cushion block is fixedly connected to a transformer, the lower surface of the bottom rod is fixedly connected to a base, the upper surface of the bottom rod is fixedly connected to a cooling device, the outer surface of the transformer is fixedly connected to a bottom output head, the outer surface of the transformer is fixedly connected to a top output head, the number of the transformers is three and the three transformers are fixedly connected to the upper surface of the bottom rod, and the output end of the bottom output head is fixedly connected to a high-voltage connecting rod, so as to improve the stability and heat dissipation capacity of the transformer.

[0004] However, the device still has some shortcomings: the device is equipped with a lifting ring to facilitate the workers to install the transformer, but in the small indoor environment, the workers' limbs are limited by space during the installation of the transformer, and the transformer is easily bumped against the wall. The epoxy resin on the surface of the transformer is easily worn during the reciprocating collision, resulting in an increased risk of short circuit in the transformer during long-term use in the later stage. Therefore, the transformer needs to be well protected before installation to avoid damage to the transformer. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a high-voltage dry-type transformer with a protective function, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high-voltage dry-type transformer with a protective function, comprising a protective shell, a plurality of rubber columns are arranged at the bottom of the inner wall of the protective shell, a transformer body is fixedly installed on the top of the plurality of rubber columns, the rubber columns are distributed at the four corners of the bottom of the transformer body, and a cooling assembly is arranged at the center of the bottom of the transformer body, a hanging ring is fixedly installed on the top of the transformer body, two electric push rods are fixedly installed at the top corners of the inner wall of the protective shell, and the two electric push rods are symmetrically distributed with respect to the axis of the protective shell, a circular frame is fixedly installed at the bottom of the telescopic end of the electric push rod, and the outer wall of the circular frame is slidably connected to the inner wall of the protective shell, and the protective shell is Both sides of the back are hinged with swing plates through torsion springs, the inclined surfaces of the swing plates are located on the movement trajectory of the circular frame, and the swing plates are matched with the vents of the protective shell. The staff lifts the lifting ring on the top of the transformer body through external equipment, puts the transformer body into the protective shell, and the rubber column supports the transformer body at the same time; the electric push rod is started, and the telescopic end of the electric push rod drives the circular frame to move up and down inside the protective shell. When the circular frame moves downward, it contacts the inclined surfaces of the swing plate and the moisture-proof plate to generate a resistance force. After the swing plate and the moisture-proof plate are contacted, their own hinged axes rotate away from the direction of the circular frame. When the swing plate and the moisture-proof plate no longer conflict, the swing plate is reset by the torsion spring, and this reciprocating process makes the swing plate and the moisture-proof plate swing back and forth and reset.

[0007] According to the above technical solution, moisture-proof plates are hingedly connected to the left and right sides of the protective shell through torsion springs, a telescopic rod is hingedly connected to the inner wall of the circular frame close to the center of the protective shell, water-absorbing cotton is slidably installed inside the moisture-proof plate, and a U-shaped opening is provided at the bottom of the water-absorbing cotton, the bottom of the water-absorbing cotton is wavy, an L-shaped plate is slidably installed inside the water-absorbing cotton through a spring, a trapezoidal block is fixedly installed at the bottom of the L-shaped plate, and a waterproof seal is provided at the bottom of the water-absorbing cotton to prevent water vapor from spreading everywhere inside the moisture-proof plate. The dispersion device drives the telescopic rod to move synchronously when the circular frame moves up and down, and the telescopic end of the telescopic rod pulls the absorbent cotton to slide up and down inside the moisture-proof board. At the same time, the absorbent cotton drives the L-shaped plate to move synchronously. When the L-shaped plate moves downward, it is limited by the U-shaped groove inside the moisture-proof board. The L-shaped plate drives the trapezoidal block to move synchronously and hits the top of the inner wall of the absorbent cotton. At this time, the absorbent cotton bends upward. When the absorbent cotton continues to pull the L-shaped plate out of the U-shaped groove in the moisture-proof board, the trapezoidal block suddenly hits the absorbent cotton, causing the absorbent cotton to bend downward.

[0008] According to the above technical solution, a number of U-shaped grooves are equidistantly provided on the front and back sides of the inner wall of the protective shell, the absorbent cotton is hinged at the telescopic end of the telescopic rod close to the center of the protective shell, and the absorbent cotton is in contact with the inner wall of the moisture-proof board, the top of the L-shaped board is in contact with the inner wall of the U-shaped groove inside the moisture-proof board on the side away from the center of the moisture-proof board, and the L-shaped board has toughness, and the inside of the absorbent cotton is located on the bottom movement trajectory of the trapezoidal block.

[0009] According to the above technical scheme, the anti-dispersion device includes a pulley, a reciprocating screw, a hollow ring, a limiting rod and a water inlet block. The pulley is rotatably installed on the inner wall of the absorbent cotton away from the center of the moisture-proof plate. The reciprocating screw is fixedly installed on the side of the pulley close to the center of the absorbent cotton at one end away from the center of the moisture-proof plate. The hollow ring is internally sleeved and slidably installed on the outer wall surface of the reciprocating screw. Both the front and back ends of the limiting rod are fixedly installed inside the U-shaped groove of the absorbent cotton. The outer wall of the water inlet block is fixedly installed on the top of the outer wall of the hollow ring. When the absorbent cotton moves up and down, it drives the pulley to move synchronously. The pulley is connected to the moisture-proof plate by the moisture-proof plate. The friction between the inner walls of the plates begins to rotate, and when the pulley rotates, the sliding friction between the absorbent cotton and the moisture-proof plate is converted into rolling friction. At the same time, the pulley drives the reciprocating screw to rotate. The reciprocating screw is restricted by the spiral groove and the block set on the inner wall of the hollow ring. When the reciprocating screw rotates, it drives the hollow ring to slide left and right along the outer wall of the reciprocating screw. At this time, the hollow ring relies on the limitation of the limit rod to prevent itself from rotating with the reciprocating screw. At the same time, the hollow ring drives the water inlet block to slide left and right. When the water inlet block slides left and right, it squeezes and conflicts with the wave surface of the absorbent cotton, and the absorbent cotton undergoes reciprocating bending and deformation through the trapezoidal block.

[0010] According to the above technical solution, the outside of the pulley contacts the inner wall of the moisture-proof plate, the outer wall of the limit rod passes through the inside of the hollow ring, and the hollow ring and the limit rod are slidably connected, a water inlet is provided on the outer wall of the water inlet block, and the outer wall of the water inlet block contacts the wavy surface at the bottom of the absorbent cotton, the water inlet block is connected to the hollow ring, and a drip-proof device is provided above the circular frame to prevent water droplets from forming due to the temperature difference between hot and cold when the transformer main body is running.

[0011] According to the above technical solution, the anti-dispersion device also includes an interception plate, an L-shaped rod, a squeezing ball and a T-shaped scraper. The outer wall of the interception plate is slidably installed inside the hollow ring through a spring, the L-shaped rod is fixedly installed on the outer wall surface of the interception plate near the center of the hollow ring, the outer wall of the squeezing ball is fixedly installed on the right side of the bottom of the L-shaped rod, and the outer wall of the squeezing ball contacts the inner wall of the spiral groove of the reciprocating screw, the bottom of the T-shaped scraper is hinged at the inner wall of the hollow ring, and the arc surface of the T-shaped scraper contacts the outer wall of the interception plate, and when the hollow ring slides left and right, it drives the interception plate to move synchronously, and the interception plate When the intercepting plate moves left and right, it drives the L-shaped rod to move synchronously, and the L-shaped rod drives the extrusion ball to move synchronously. The arc surface of the extrusion ball contacts the inside of the spiral groove of the reciprocating screw to generate a resistance force. When the hollow ring continues to slide, the intercepting plate is resisted by the L-shaped rod and slides inside the hollow ring in the opposite direction of the movement of the hollow ring. When the reciprocating screw rotates, the extrusion ball disengages from the spiral groove. At this time, the intercepting plate is reset by the spring force. At the same time, when the intercepting plate slides left and right, it contacts the arc surface of the T-shaped scraper. The hinge shaft between the T-shaped scraper and the hollow ring begins to rotate, causing the T-shaped scraper to scrape up and down on the surface of the intercepting plate.

[0012] According to the above technical solution, the drip-proof device includes a trapezoidal column, a wave plate and a circular hole plate. The top of the trapezoidal column is slidably installed at the top edge of the inner wall of the protective shell, and the inclined surface of the trapezoidal column is located on the movement trajectory of the circular frame. The top of the wave plate is slidably installed on the top of the inner wall of the protective shell through a spring, and the front of the wave plate is fixedly installed on the back of the trapezoidal column. The circular hole plate is fixedly installed on the outer wall of the trapezoidal column close to the center of the protective shell. When the circular frame moves upward, it contacts the inclined surface of the trapezoidal column to induce a resistance force. The trapezoidal column pushes the wave plate to move toward the back of the inner wall of the protective shell. When the circular frame slides downward, it no longer contacts the trapezoidal column. The wave plate is reset by the spring and drives the trapezoidal column to reset.

[0013] According to the above technical solution, the drip-proof device also includes a rotating rod, an arc-shaped sheet, an arc groove column, a sliding column and a friction ring. The back of the rotating rod is rotatably mounted on the back of the inner wall of the protective shell, and a threaded groove is provided on the outer wall of the front side of the rotating rod. The threaded groove of the rotating rod is located on the movement trajectory of the circular hole in the circular hole plate. The surface of the arc-shaped sheet is fixedly mounted on the outer wall surface of the rotating rod, and the arc-shaped sheet is connected to the rotating rod. The front of the arc groove column is rotatably mounted on the front of the inner wall of the rotating rod. The bottom of the sliding column is slidably mounted inside the arc groove of the arc groove column. The inner wall of the friction ring is fixedly mounted on the top of the sliding column, and The outer wall of the friction ring is slidably connected to the inner wall of the rotating rod, and the trapezoidal column drives the circular hole plate to slide synchronously along the surface of the rotating rod. The circular hole of the circular hole plate contacts the spiral groove on the surface of the rotating rod. At this time, the circular hole plate contacts the spiral groove on the surface of the rotating rod through the built-in clamping block, causing the rotating rod to generate a rotational force and start to rotate. The rotating rod drives the arc plate to rotate in the depression at the bottom of the wave plate to absorb the mist and penetrate the mist into the inside of the rotating rod; the rotating rod drives the arc groove column to rotate, and when the arc groove column rotates, the sliding column is restricted by the arc groove to enable the sliding column to slide back and forth, and the sliding column drives the friction ring to slide synchronously along the inner wall of the rotating rod.

[0014] The present invention provides a high voltage dry-type transformer with a protective function. It has the following beneficial effects:

[0015] (1) The present invention can effectively avoid collision between the transformer body and the wall when the transformer body is installed indoors by cooperating with the protective shell, rubber column, transformer body and hanging ring, so as to prevent the epoxy resin on the surface of the transformer body from being easily worn, which will increase the risk of short circuit of the transformer during long-term use in the later stage; the electric push rod, circular frame, swing plate and moisture-proof plate are coordinated, which is different from the traditional transformer that is difficult to discharge heat energy by cooling through internal cooling components. The swing plate and moisture-proof plate can accelerate the gas discharge speed inside the protective shell, prevent the epoxy resin on the surface of the transformer body coil from melting and causing the line to be exposed; and ensure that the protective shell is ventilated to prevent moisture from the wall or rodents and insects from entering the protective shell; the telescopic rod, absorbent cotton, L-shaped plate and trapezoidal block are coordinated to effectively reduce the increase of moisture inside the protective shell caused by the return of the south wind; at the same time, the moisture is evenly distributed inside the absorbent cotton, so as to avoid the increase of the overall humidity of the moisture-proof plate, thereby increasing the humidity inside the protective shell when swinging, and further avoid the epoxy resin on the coil surface from falling off and causing the transformer body to short circuit.

[0016] (2) The present invention sets an anti-dispersion device, and cooperates with water-absorbing cotton, pulley, reciprocating screw, hollow ring, limit rod and water inlet block, so that the water-absorbing cotton squeezes the absorbed water vapor into the water inlet block through the water inlet on the surface of the water inlet block, and the water inlet block guides the water into the hollow ring for centralized collection. The hollow ring seals the external surface to effectively prevent water vapor from overflowing, and keeps the water-absorbing cotton dry for a long time to avoid a decrease in moisture absorption efficiency; the interception plate, L-shaped rod, squeezing ball and T-shaped scraper cooperate to make the interception plate slide in contact with the water source collected in the hollow ring, intercept the particles in the water and collect them in the slot, and the T-shaped scraper promotes the particles to be evenly distributed on the surface of the interception plate to prevent them from falling off, effectively preventing the particles from blocking the connecting port between the water inlet block and the hollow ring.

[0017] (3) The present invention, through the arrangement of a drip-proof device, cooperates with a circular frame, a trapezoidal column and a wave plate, to effectively prevent heat from rising and accumulating when the hot and cold components of the transformer body are turned on, resulting in excessive temperature difference around the transformer body, changing the pressure borne by the local coil and reducing the overall transmission power of the transformer body; through the cooperation of a circular hole plate, a rotating rod and an arc-shaped sheet, fogging due to excessive temperature difference inside the protective shell when the transformer body dissipates heat through the cooling component is prevented, and the rising mist is prevented from condensing into water droplets attached to the bottom of the wave plate and causing irregular water droplets to drip, resulting in an increase in the humidity of the working environment of the transformer body and an increase in the oxidation rate of the insulation layer between the line and the connection port of the transformer body, thereby increasing the risk of the insulation layer being punctured; through the cooperation of an arc groove column, a sliding column and a friction ring, the rotating rod and the arc-shaped sheet themselves maintain a stable temperature, avoiding excessive temperature difference causing water vapor to form on their outer wall surface and causing water vapor to fall everywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A schematic diagram of the present invention as a whole;

[0019] Figure 2 It is a cross-sectional schematic diagram of the present invention as a whole;

[0020] Figure 3 This is a schematic diagram of the top viewing angle of the circular frame of the present invention;

[0021] Figure 4 This is a schematic diagram of the peripheral structure of the circular frame of the present invention;

[0022] Figure 5 This is a bottom perspective diagram of the peripheral structure of the circular frame of the present invention;

[0023] Figure 6 It is a schematic diagram of the anti-dispersion device of the present invention;

[0024] Figure 7 It is an enlarged schematic diagram of the structure at position A in the anti-dispersion device of the present invention;

[0025] Figure 8 It is a schematic diagram of the anti-drip device of the present invention;

[0026] Fig. 9 It is a schematic cross-sectional view of part of the structure of the drip-proof device of the present invention.

[0027] In the figure: 1. protective shell; 2. rubber column; 3. transformer body; 31. lifting ring; 4. anti-dispersion device; 41. pulley; 42. reciprocating screw; 43. hollow ring; 44. limit rod; 45. water inlet block; 46. interception plate; 47. L-shaped rod; 48. squeezing ball; 49. T-shaped scraper; 5. anti-drip device; 51. trapezoidal column; 52. wave plate; 53. circular hole plate; 54. rotating rod; 55. arc sheet; 56. arc groove column; 57. sliding column; 58. friction ring; 6. electric push rod; 7. circular frame; 8. swing plate; 9. moisture-proof plate; 10. telescopic rod; 11. absorbent cotton; 12. L-shaped plate; 13. trapezoidal block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1-Figure 9One embodiment of the present invention is: a high-voltage dry-type transformer with a protective function, comprising a protective shell 1, a plurality of rubber columns 2 are arranged at the bottom of the inner wall of the protective shell 1, a transformer body 3 is fixedly installed on the top of the plurality of rubber columns 2, the rubber columns 2 are distributed at the four corners of the bottom of the transformer body 3, and a cooling assembly is arranged at the center of the bottom of the transformer body 3, a hanging ring 31 is fixedly installed on the top of the transformer body 3, two electric push rods 6 are fixedly installed at the top corners of the inner wall of the protective shell 1, and the two electric push rods 6 are symmetrically distributed about the axis of the protective shell 1, a circular frame 7 is fixedly installed at the bottom of the telescopic end of the electric push rod 6, and the outer wall of the circular frame 7 is slidably connected to the inner wall of the protective shell 1, and the front and back sides of the protective shell 1 are hinged with swing springs. The movable plate 8 and the inclined surface of the swing plate 8 are located on the movement trajectory of the circular frame 7, and the swing plate 8 is matched with the vent of the protective shell 1. Through the above cooperation, the transformer main body 3 can be effectively prevented from colliding with the wall when installed indoors, and the epoxy resin on the surface of the transformer main body 3 can be prevented from being easily worn, resulting in an increased risk of short circuit of the transformer during long-term use in the later stage; the swing plate 8 and the moisture-proof plate 9 can accelerate the gas discharge speed inside the protective shell 1, and prevent the epoxy resin on the surface of the coil of the transformer main body 3 from melting and causing the line to be exposed; at the same time, the swing plate 8 and the moisture-proof plate 9 are placed in a small space. The wall is pressed against the wall, so that it is completely matched with the outer wall of the protective shell 1, ensuring that the protective shell 1 is blown, and preventing wall moisture or rodents and insects from entering the inside of the protective shell 1.

[0030] Moisture-proof plates 9 are hinged to the left and right sides of the protective shell 1 through torsion springs, and a telescopic rod 10 is hinged to the inner wall of the circular frame 7 near the center of the protective shell 1. Water-absorbing cotton 11 is slidably installed inside the moisture-proof plate 9, and a U-shaped opening is provided at the bottom of the water-absorbing cotton 11, and the bottom of the water-absorbing cotton 11 is wavy. An L-shaped plate 12 is penetrated and slidably installed inside the water-absorbing cotton 11 through a spring, and a trapezoidal block 13 is fixedly installed at the bottom of the L-shaped plate 12. An anti-dispersion device 4 is provided at the bottom of the water-absorbing cotton 11 to prevent water vapor from spreading everywhere inside the moisture-proof plate 9. Through the above cooperation, the increase in moisture inside the protective shell 1 caused by the return of south wind can be effectively reduced; at the same time, the water-absorbing cotton 11 reciprocates up and down to deform to absorb the moisture intercepted inside the moisture-proof plate 9, so as to promote the uniform distribution of moisture inside itself, avoid the increase of the overall humidity of the moisture-proof plate 9, thereby increasing the humidity inside the protective shell 1 when swinging, and further avoid the epoxy resin on the coil surface falling off to cause a short circuit in the transformer main body 3.

[0031] A number of U-shaped grooves are equidistantly provided on the front and back sides of the inner wall of the protective shell 1. The absorbent cotton 11 is hinged at the telescopic end of the telescopic rod 10 near the center of the protective shell 1, and the absorbent cotton 11 contacts the inner wall of the moisture-proof plate 9. The top of the L-shaped plate 12 contacts the inner wall of the U-shaped groove inside the moisture-proof plate 9 away from the center of the moisture-proof plate 9, and the L-shaped plate 12 has toughness. The interior of the absorbent cotton 11 is located on the bottom movement trajectory of the trapezoidal block 13. The absorbent cotton 11 consists of a square frame and a sponge. The sponge is located in the square frame, the inner wall of the square frame is slidably connected to the surface of the L-shaped plate 12, the trapezoidal block 13 contacts the sponge, and the telescopic rod 10 is hinged to the square frame.

[0032] When in use, the staff lifts the lifting ring 31 on the top of the transformer body 3 through an external device, and puts the transformer body 3 into the protective shell 1. At the same time, the rubber column 2 supports the transformer body 3, and the protective shell 1 can effectively avoid the transformer body 3 from colliding with the wall when it is installed indoors, and prevent the epoxy resin on the surface of the transformer body 3 from being easily worn, resulting in an increased risk of short circuit of the transformer during long-term use in the later stage; start the electric push rod 6, and the telescopic end of the electric push rod 6 drives the circular frame 7 to move up and down inside the protective shell 1. When the circular frame 7 moves downward, it contacts the swing plate 8 and The inclined surface of the moisture-proof plate 9 generates a resistance force. After the swing plate 8 and the moisture-proof plate 9 are resisted, the swing plate 8 and the moisture-proof plate 9 are hinged and rotated in the direction away from the circular frame 7. When the swing plate 8 and the moisture-proof plate 9 are no longer resisted by the circular frame 7, the swing plate 8 and the moisture-proof plate 9 are reset by the torsion spring. This reciprocating process makes the swing plate 8 and the moisture-proof plate 9 swing back and forth and reset. Different from the traditional transformer that is difficult to discharge heat energy through internal cooling components for cooling, the swing plate 8 and the moisture-proof plate 9 can accelerate the gas discharge speed inside the protective shell 1 to prevent the epoxy resin on the surface of the coil of the transformer body 3 from melting and causing the circuit to be exposed; at the same time, the swing plate 8 and the moisture-proof plate 9 When the moisture-proof plate 9 is placed in a narrow space, it contacts the wall surface and thus completely fits the outer wall of the protective shell 1, ensuring that the protective shell 1 is blown away by wind and preventing moisture from the wall or rodents and insects from entering the interior of the protective shell 1; when the circular frame 7 moves up and down, it drives the telescopic rod 10 to move synchronously, and the telescopic end of the telescopic rod 10 pulls the absorbent cotton 11 to slide up and down inside the moisture-proof plate 9. At the same time, the absorbent cotton 11 drives the L-shaped plate 12 to move synchronously. When the L-shaped plate 12 moves downward, it is limited by the U-shaped groove inside the moisture-proof plate 9. The L-shaped plate 12 drives the trapezoidal block 13 to move synchronously and contact the top of the inner wall of the absorbent cotton 11. At this time, the absorbent cotton 11 moves upward. Bending deformation, when the absorbent cotton 11 continues to pull the L-shaped plate 12 out of the U-shaped groove in the moisture-proof plate 9, the trapezoidal block 13 suddenly hits the absorbent cotton 11, causing the absorbent cotton 11 to bend downward. Through the above cooperation, the increase in moisture inside the protective shell 1 caused by the return of the south wind can be effectively reduced; at the same time, the absorbent cotton 11 reciprocates up and down to absorb the moisture intercepted inside the moisture-proof plate 9, and promotes the uniform distribution of moisture inside itself, avoiding the increase of the overall humidity of the moisture-proof plate 9 and thereby increasing the humidity inside the protective shell 1 when swinging, and further avoiding the epoxy resin on the coil surface from falling off and causing a short circuit in the transformer main body 3.

[0033] See also Figure 1-Figure 9 , based on the above embodiment, another embodiment of the present invention further includes an anti-dispersion device 4;

[0034] The anti-dispersion device 4 includes a pulley 41, a reciprocating screw 42, a hollow ring 43, a limiting rod 44 and a water inlet block 45. The pulley 41 is rotatably installed on the inner wall of the absorbent cotton 11 away from the center of the moisture-proof plate 9. The reciprocating screw 42 is fixedly installed on the pulley 41 close to the center of the absorbent cotton 11 at one end away from the center of the moisture-proof plate 9. The hollow ring 43 is internally sleeved and slidably installed on the outer wall surface of the reciprocating screw 42. Both the front and back ends of the limiting rod 44 are fixedly installed inside the U-shaped groove of the absorbent cotton 11. The outer wall of the water inlet block 45 is fixedly installed on the top of the outer wall of the hollow ring 43, so that the absorbent cotton 11 squeezes the absorbed water vapor into the water inlet block 45 through the water inlet on the surface of the water inlet block 45. The water inlet block 45 guides water into the hollow ring 43 for centralized collection. The outer surface is sealed by the hollow ring 43 to effectively prevent water vapor from overflowing, and the absorbent cotton 11 is kept dry for a long time to avoid a decrease in the moisture absorption efficiency.

[0035] The outside of the pulley 41 contacts the inner wall of the moisture-proof plate 9, the outer wall of the limiting rod 44 passes through the inside of the hollow ring 43, and the hollow ring 43 and the limiting rod 44 are slidably connected. A water inlet is provided on the outer wall of the water inlet block 45, and the outer wall of the water inlet block 45 contacts the wave surface at the bottom of the absorbent cotton 11. The water inlet block 45 is connected to the hollow ring 43, and a drip-proof device 5 is arranged above the circular frame 7 to prevent water droplets from forming due to the temperature difference between hot and cold when the transformer body 3 is in operation.

[0036] The anti-dispersion device 4 also includes an intercepting plate 46, an L-shaped rod 47, a squeezing ball 48 and a T-shaped scraper 49. The outer wall of the intercepting plate 46 is slidably installed inside the hollow ring 43 through a spring, and the L-shaped rod 47 is fixedly installed on the outer wall surface of the intercepting plate 46 near the center of the hollow ring 43. The outer wall of the squeezing ball 48 is fixedly installed on the right side of the bottom of the L-shaped rod 47, and the outer wall of the squeezing ball 48 contacts the inner wall of the spiral groove of the reciprocating screw 42. The bottom of the T-shaped scraper 49 is hinged at the inner wall of the hollow ring 43, and the arc surface of the T-shaped scraper 49 contacts the outer wall of the intercepting plate 46. Through the above cooperation, the intercepting plate 46 makes sliding contact with the water source collected inside the hollow ring 43, intercepts the particles in the water and collects them in the card seam, and the T-shaped scraper 49 promotes the particles to be evenly distributed on the surface of the intercepting plate 46 to avoid falling off, effectively preventing the particles from blocking the connecting port between the water inlet block 45 and the hollow ring 43.

[0037] When in use, the absorbent cotton 11 moves up and down, driving the pulley 41 to move synchronously. The pulley 41 starts to rotate due to the friction between the absorbent cotton 11 and the inner wall of the moisture-proof plate 9. When the pulley 41 rotates, the sliding friction between the absorbent cotton 11 and the moisture-proof plate 9 is converted into rolling friction. At the same time, the pulley 41 drives the reciprocating screw 42 to rotate. The reciprocating screw 42 is restricted by the spiral groove and the block set on the inner wall of the hollow ring 43. When the reciprocating screw 42 rotates, it drives the hollow ring 43 to slide left and right along the outer wall of the reciprocating screw 42. At this time, the hollow ring 43 relies on the limit rod 44 to limit itself The body rotates with the reciprocating screw rod 42, and at the same time, the hollow ring 43 drives the water inlet block 45 to slide left and right. When the water inlet block 45 slides left and right, it squeezes and conflicts with the wave surface of the absorbent cotton 11, and the absorbent cotton 11 is reciprocated and bent by the trapezoidal block 13, so that the absorbent cotton 11 squeezes the absorbed water vapor into the water inlet block 45 through the water inlet on the surface of the water inlet block 45. The water inlet block 45 guides the water into the hollow ring 43 for centralized collection. The hollow ring 43 seals the external surface to effectively prevent water vapor from overflowing, and keeps the absorbent cotton 11 dry for a long time to avoid moisture absorption. When the hollow ring 43 slides left and right, it drives the interception plate 46 to move synchronously. When the interception plate 46 moves left and right, it drives the L-shaped rod 47 to move synchronously. The L-shaped rod 47 drives the extrusion ball 48 to move synchronously. The arc surface of the extrusion ball 48 resists the inner spiral groove of the reciprocating screw 42 to generate a resistance force. When the hollow ring 43 continues to slide, the interception plate 46 is resisted by the L-shaped rod 47 and slides in the opposite direction of the movement of the hollow ring 43. When the reciprocating screw 42 rotates, the extrusion ball 48 disengages from the spiral groove. At this time, the interception plate 46 is reset by the elastic force of the spring. When the interception plate 46 slides left and right, it contacts the arc surface of the T-shaped scraper 49, and the hinge shaft between the T-shaped scraper 49 and the hollow ring 43 starts to rotate, causing the T-shaped scraper 49 to scrape up and down on the surface of the interception plate 46. Through the above cooperation, the interception plate 46 makes sliding contact with the water source collected inside the hollow ring 43, intercepts the particles in the water and collects them in the slots, and the T-shaped scraper 49 causes the particles to be evenly distributed on the surface of the interception plate 46 to prevent them from falling off, effectively preventing the particles from clogging the connecting port between the water inlet block 45 and the hollow ring 43.

[0038] See also Figure 1-Figure 9 , based on the above embodiment, another embodiment of the present invention further includes a drip-proof device 5;

[0039] The drip-proof device 5 includes a trapezoidal column 51, a wave plate 52 and a circular hole plate 53. The top of the trapezoidal column 51 is slidably installed on the top edge of the inner wall of the protective shell 1, and the inclined surface of the trapezoidal column 51 is located on the movement trajectory of the circular frame 7. The top of the wave plate 52 is slidably installed on the top of the inner wall of the protective shell 1 through a spring, and the front of the wave plate 52 is fixedly installed on the back of the trapezoidal column 51. The circular hole plate 53 is fixedly installed on the outer wall of the trapezoidal column 51 near the center of the protective shell 1. It effectively avoids heat rising and accumulation when the hot and cold components of the transformer body 3 are turned on, resulting in excessive temperature difference around the transformer body 3, and changes the difference in pressure borne by the local coil, thereby reducing the overall transmission power of the transformer body 3.

[0040] The drip-proof device 5 also includes a rotating rod 54, an arc piece 55, an arc groove column 56, a sliding column 57 and a friction ring 58. The back of the rotating rod 54 is rotatably mounted on the back of the inner wall of the protective shell 1, and a threaded groove is provided on the outer wall of the front side of the rotating rod 54. The threaded groove of the rotating rod 54 is located on the movement trajectory of the circular hole in the circular hole plate 53. The surface of the arc piece 55 is fixedly mounted on the outer wall surface of the rotating rod 54, and the arc piece 55 is connected to the rotating rod 54. The front of the arc groove column 56 is rotatably mounted on the front of the inner wall of the rotating rod 54. The bottom of the sliding column 57 is slidably mounted inside the arc groove of the arc groove column 56. The inner wall of the friction ring 58 is fixedly mounted on the top of the sliding column 57, and the outer wall of the friction ring 58 is slidably connected to the inner wall of the rotating rod 54. The above cooperation prevents the transformer body 3 from passing through. When the overcooling component dissipates heat, fogging occurs due to the large temperature difference inside the protective shell 1, which prevents the rising fog from condensing into water droplets that adhere to the bottom of the wave plate 52 and causing irregular water droplets to drip, resulting in an increase in the humidity of the working environment of the transformer body 3 and an increase in the oxidation rate of the insulating layer between the line and the connection port of the transformer body 3, increasing the risk of the insulation layer of the transformer body 3 being punctured; the friction ring 58 evenly applies the fog absorbed by the arc piece 55 to the inner wall of the rotating rod 54 through sliding friction for cooling treatment, and the rotating rod 54 and the arc piece 55 themselves maintain a stable temperature to avoid excessive temperature difference causing water vapor to form on the outer wall surface, resulting in the rotating rod 54 and the arc piece 55 rotating. The phenomenon of throwing their own water vapor around.

[0041] When in use, when the circular frame 7 moves upward, it contacts the inclined surface of the trapezoidal column 51 to induce a resistance force, and the trapezoidal column 51 pushes the wave plate 52 to move toward the back side of the inner wall of the protective shell 1. When the circular frame 7 slides downward, it no longer contacts the trapezoidal column 51. The wave plate 52 is reset by the spring and drives the trapezoidal column 51 to reset. This reciprocating motion effectively avoids the heat rising and accumulating when the cold and hot components of the transformer main body 3 are turned on, resulting in excessive temperature difference around the transformer main body 3, changing the difference in pressure borne by the local coil, and reducing the overall transmission power of the transformer main body 3; the trapezoidal column 51 drives the circular hole plate 53 to slide synchronously along the surface of the rotating rod 54, and the circular hole of the circular hole plate 53 contacts the spiral groove on the surface of the rotating rod 54. At this time, the circular hole plate 53 contacts the spiral groove on the surface of the rotating rod 54 through the built-in block, causing the rotating rod 54 to generate a rotating force and start to rotate. The rotating rod 54 drives the arc sheet 55 to rotate in the depression at the bottom of the wave plate 52 to absorb the mist, and the mist penetrates into the inside of the rotating rod 54. Through the above cooperation, the transformer main body is prevented from When the body 3 dissipates heat through the cooling assembly, fogging occurs due to the large temperature difference inside the protective shell 1, which prevents the rising mist from condensing into water droplets and attaching to the bottom of the wave plate 52, causing irregular water droplets to drip, resulting in an increase in the humidity of the working environment of the transformer body 3 and an increase in the oxidation rate of the insulating layer between the line and the connection port of the transformer body 3, increasing the risk of the insulation layer of the transformer body 3 being broken down; the rotating rod 54 drives the arc groove column 56 to rotate, and when the arc groove column 56 rotates, the arc groove restricts the sliding column 57, so that the sliding column 57 can slide back and forth, and the sliding column 57 drives the friction ring 58 to slide synchronously along the inner wall of the rotating rod 54. At this time, the friction ring 58 evenly applies the mist absorbed by the arc sheet 55 to the inner wall of the rotating rod 54 through sliding friction for cooling. At this time, the rotating rod 54 and the arc sheet 55 maintain a stable temperature themselves, avoiding excessive temperature difference changes that cause water vapor to form on the outer wall surface of themselves, resulting in the phenomenon of throwing their own water vapor around when the rotating rod 54 and the arc sheet 55 rotate.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-voltage dry-type transformer with a protective function, comprising a protective shell (1), a plurality of rubber columns (2) being arranged at the bottom of the inner wall of the protective shell (1), a transformer body (3) being fixedly mounted on the tops of the plurality of rubber columns (2), the rubber columns (2) being distributed at the four corners of the bottom of the transformer body (3), a cooling assembly being arranged at the center of the bottom of the transformer body (3), a lifting ring (31) being fixedly mounted on the top of the transformer body (3), and characterized in that: Two electric push rods (6) are fixedly mounted at the top corners of the inner wall of the protective shell (1), and the two electric push rods (6) are symmetrically distributed around the axis of the protective shell (1); a circular frame (7) is fixedly mounted at the bottom of the telescopic end of the electric push rod (6), and the outer wall of the circular frame (7) is slidably connected to the inner wall of the protective shell (1); swing plates (8) are hingedly connected to the inside of the front and back sides of the protective shell (1) through torsion springs, and the inclined surface of the swing plate (8) is located on the motion trajectory of the circular frame (7), and the swing plate (8) fits with the vent of the protective shell (1); The left and right sides of the protective shell (1) are hinged with moisture-proof plates (9) via torsion springs, the inner wall of the circular frame (7) close to the center of the protective shell (1) is hinged with a telescopic rod (10), the moisture-proof plate (9) is slidably installed with water-absorbing cotton (11), and the bottom of the water-absorbing cotton (11) is provided with a U-shaped opening, the bottom of the water-absorbing cotton (11) is wavy, the inside of the water-absorbing cotton (11) is penetrated by a spring and slidably installed with an L-shaped plate (12), the bottom of the L-shaped plate (12) is fixedly installed with a trapezoidal block (13), and the bottom of the water-absorbing cotton (11) is provided with an anti-dispersion device (4) for preventing water vapor from spreading everywhere inside the moisture-proof plate (9); The anti-dispersion device (4) comprises a pulley (41), a reciprocating screw rod (42), a hollow ring (43), a limiting rod (44) and a water inlet block (45); the pulley (41) is rotatably mounted on the inner wall of the absorbent cotton (11) at a side away from the center of the moisture-proof plate (9); one end of the reciprocating screw rod (42) is fixedly mounted on the side of the pulley (41) close to the center of the absorbent cotton (11) at a side away from the center of the moisture-proof plate (9); the hollow ring (43) is internally sleeved and slidably mounted on the outer wall surface of the reciprocating screw rod (42); both the front and back ends of the limiting rod (44) are fixedly mounted inside the U-shaped groove of the absorbent cotton (11); and the outer wall of the water inlet block (45) is fixedly mounted on the top of the outer wall of the hollow ring (43); The anti-dispersion device (4) further comprises an intercepting plate (46), an L-shaped rod (47), a squeezing ball (48) and a T-shaped scraper (49); the outer wall of the intercepting plate (46) is slidably mounted inside the hollow ring (43) via a spring; the L-shaped rod (47) is fixedly mounted on the outer wall surface of the intercepting plate (46) on one side close to the center of the hollow ring (43); the outer wall of the squeezing ball (48) is fixedly mounted on the right side of the bottom of the L-shaped rod (47), and the outer wall of the squeezing ball (48) contacts the inner wall of the spiral groove of the reciprocating screw rod (42); the bottom of the T-shaped scraper (49) is hinged to the inner wall of the hollow ring (43), and the arc surface of the T-shaped scraper (49) contacts the outer wall of the intercepting plate (46).

2. A high voltage dry-type transformer with protection function according to claim 1, characterized in that: A plurality of U-shaped grooves are equidistantly formed on the front and back sides of the inner wall of the protective shell (1); the absorbent cotton (11) is hinged to the telescopic end of the telescopic rod (10) on the side close to the center of the protective shell (1), and the absorbent cotton (11) contacts the inner wall of the moisture-proof plate (9); the top of the L-shaped plate (12) contacts the inner wall of the U-shaped groove inside the moisture-proof plate (9) on the side away from the center of the moisture-proof plate (9); the L-shaped plate (12) has toughness, and the inside of the absorbent cotton (11) is located on the bottom movement track of the trapezoidal block (13).

3. The high voltage dry-type transformer with protection function according to claim 1, characterized in that: The outside of the pulley (41) contacts the inner wall of the moisture-proof plate (9), the outer wall of the limit rod (44) penetrates the inside of the hollow ring (43), and the hollow ring (43) and the limit rod (44) are slidably connected. The outer wall of the water inlet block (45) is provided with a water inlet, and the outer wall of the water inlet block (45) contacts the wave surface at the bottom of the absorbent cotton (11), and the water inlet block (45) is connected to the hollow ring (43). A drip-proof device (5) is provided above the circular frame (7) for preventing water droplets from forming due to the temperature difference between hot and cold when the transformer body (3) is in operation.

4. The high voltage dry-type transformer with protection function according to claim 1, characterized in that: The drip prevention device (5) comprises a trapezoidal column (51), a wave plate (52) and a circular hole plate (53); the top of the trapezoidal column (51) is slidably mounted on the top edge of the inner wall of the protective shell (1), and the inclined surface of the trapezoidal column (51) is located on the movement track of the circular frame (7); the top of the wave plate (52) is slidably mounted on the top of the inner wall of the protective shell (1) via a spring, and the front of the wave plate (52) is fixedly mounted on the back of the trapezoidal column (51); and the circular hole plate (53) is fixedly mounted on the outer wall of the trapezoidal column (51) near the center of the protective shell (1).

5. The high voltage dry-type transformer with protection function according to claim 4, characterized in that: The drip prevention device (5) further comprises a rotating rod (54), an arc-shaped sheet (55), an arc groove column (56), a sliding column (57) and a friction ring (58); the back of the rotating rod (54) is rotatably mounted on the back of the inner wall of the protective shell (1); and a threaded groove is provided on the outer wall of the front side of the rotating rod (54); the threaded groove of the rotating rod (54) is located on the movement track of the circular hole in the circular hole plate (53); the surface of the arc-shaped sheet (55) is fixedly mounted on the outer wall surface of the rotating rod (54), and the arc-shaped sheet (55) is connected to the rotating rod (54); the front of the arc groove column (56) is rotatably mounted on the front of the inner wall of the rotating rod (54); the bottom of the sliding column (57) is slidably mounted inside the arc groove of the arc groove column (56); the inner wall of the friction ring (58) is fixedly mounted on the top of the sliding column (57), and the outer wall of the friction ring (58) is slidably connected to the inner wall of the rotating rod (54).

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