Aluminum core transformer for wind power generation with lightning overvoltage protection

Abstract

The present application relates to the technical field of transformer, and proposes a wind power generation aluminum core transformer with lightning overvoltage protection, comprising a transformer body, a moving mechanism and a lightning protection assembly. The lightning overvoltage can be effectively introduced into the ground through the lightning rod in the lightning protection assembly, preventing the damage to the internal electrical structure of the transformer caused by lightning impact, significantly improving the operation reliability and service life of the transformer. The lightning rod can be lifted as needed through the cooperation of the lifting mechanism and the driving mechanism, taking into account the transportation convenience and the effective lightning protection height in the working state, adapting to different installation environments and weather conditions. The sliding rail and the circular slider are matched for guidance, ensuring the stability of the lightning rod during lifting without deflection. The gear meshing transmission and the steel rope pulley set are matched, with high transmission efficiency, accurate control and good reliability, thereby improving the lightning protection efficiency.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, and specifically to a wind power generation aluminum core transformer with lightning overvoltage protection. Background Technology

[0002] As a clean energy technology, wind power has developed rapidly in recent years. Wind turbines are usually installed in open areas such as plateaus, mountains, and coastlines. Their towers are extremely vulnerable to lightning strikes. The step-up transformer inside the wind turbine is a key device connecting the generator to the power grid. If it is damaged by lightning overvoltage, it will directly cause the power generation unit to shut down, resulting in huge economic losses.

[0003] However, in implementing the relevant technologies, the following problems were found in the existing technologies: the height of most lightning rods is currently not adjustable. During transportation and installation, taller lightning rods will cause inconvenience and may even be unable to pass through certain road sections due to height restrictions. In the working state, the fixed height is difficult to adjust to the optimal protection range according to the actual installation environment and weather conditions, which affects the lightning protection effect and service life. Therefore, a wind power generation aluminum core transformer with lightning overvoltage protection is proposed. Summary of the Invention

[0004] This invention proposes a wind power generation aluminum core transformer with lightning overvoltage protection, which solves the problems in related technologies.

[0005] The technical solution of the present invention is as follows: a wind power generation aluminum core transformer with lightning overvoltage protection, comprising: a transformer body, a moving mechanism and a lightning protection component, wherein the lightning protection component is disposed on the top of the transformer body and the moving mechanism is disposed on the bottom of the transformer body;

[0006] The lightning protection assembly includes a fixed frame, a lifting mechanism, a lightning rod, and a drive mechanism. The drive mechanism and the lifting mechanism are both located on the top of the fixed frame. The drive mechanism is located on one side of the lifting mechanism. The lightning rod is located at the top of the lifting mechanism. The fixed frame is fixedly installed on the top of the transformer body.

[0007] Preferably, the lifting mechanism includes a fixed cylinder, two slide rails, a circular slider, a fixed rod, and three support rods. The three support rods are arranged in a circular array on the outer side wall of the fixed cylinder, and the fixed cylinder is fixedly installed on the top of the fixed frame.

[0008] Preferably, the center of the fixing frame has a threaded hole in a ring shape, and the outer side of the fixing frame has threaded holes distributed in an "equilateral triangle" shape.

[0009] Preferably, the bottom of the fixed cylinder and the bottom of the three support rods are provided with through holes, and the fixed cylinder and the three support rods are threadedly connected to the threaded holes on the fixed frame by screws passing through the through holes.

[0010] Preferably, the two slide rails are symmetrically fixedly installed on the inner side wall of the fixed cylinder, the circular slider is slidably connected to the two slide rails, the fixed rod is fixedly installed on the top of the circular slider, and the lightning rod is fixedly connected to the top of the fixed rod.

[0011] Preferably, the drive mechanism includes a fixed box, a take-up roller, a steel rope, a pulley one, a pulley two, a mounting block, a pulley three, a mounting shell, a motor, a gear one, and a gear two. The gear two is fixedly connected to one end of the take-up roller that extends into the mounting shell. The mounting shell is fixedly installed on one side of the fixed box. The take-up roller is rotatably connected to the inside of the fixed box. The fixed box is fixedly installed on the top of the fixed frame.

[0012] Preferably, the first gear is fixedly connected to the output end of the motor, the motor is fixedly mounted on the inner side wall of the mounting housing, and the first gear and the second gear are meshed together.

[0013] Preferably, pulley three is fixedly connected to the bottom of the circular slider, pulley two is fixedly installed on the top of the outer wall of the fixed cylinder, pulley one is fixedly installed on one side of the fixed box, and mounting block is fixedly installed on the top of the outer wall of the fixed cylinder. The mounting block and pulley two are symmetrically arranged.

[0014] Preferably, the steel rope is wound around the take-up roller, and the end of the steel rope away from the take-up roller passes over pulley three, pulley two, and pulley one respectively and is fixedly connected to the mounting block.

[0015] Preferably, the moving mechanism includes two mounting plates symmetrically fixedly installed at the bottom of the transformer body, and brake wheels symmetrically fixedly installed at the bottom of the two mounting plates.

[0016] The working principle and beneficial effects of this invention are as follows: The lightning rod in the lightning protection assembly effectively introduces lightning overvoltage into the ground, preventing damage to the internal electrical structure of the transformer from lightning strikes, significantly improving the transformer's operational reliability and service life. The lightning rod employs a lifting mechanism in conjunction with a drive mechanism, and its detachable structure facilitates the assembly of the aluminum core transformer. Separating the lightning rod from the transformer body facilitates the transport of the aluminum core transformer. The lightning rod can be raised and lowered as needed, balancing transportation convenience with the effective lightning protection height during operation, adapting to different installation environments and weather conditions. The guide rail and circular slider ensure stable and non-skewed lifting of the lightning rod. The gear meshing transmission and steel rope pulley system provide high transmission efficiency, precise control, and good reliability, thereby improving lightning protection efficiency. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure proposed in this invention;

[0019] Figure 2 This is a schematic diagram of a partial three-dimensional structure proposed in this invention;

[0020] Figure 3 A three-dimensional structural schematic diagram of the lightning protection component proposed in this invention;

[0021] Figure 4 This invention provides a cross-sectional perspective view of the fixed cylinder.

[0022] Figure 5 This is a cross-sectional three-dimensional structural diagram of the fixing box proposed in this invention.

[0023] In the diagram: 1. Transformer body; 2. Moving mechanism; 3. Lightning protection component; 31. Fixed frame; 32. Lifting mechanism; 321. Fixed cylinder; 322. Slide rail; 323. Circular slider; 324. Fixed rod; 325. Support rod; 33. Lightning rod; 34. Drive mechanism; 341. Fixed box; 342. Winding roller; 343. Steel rope; 344. Pulley 1; 345. Pulley 2; 346. Mounting block; 347. Pulley 3; 348. Mounting shell; 349. Motor; 3410. Gear 1; 3411. Gear 2; 21. Mounting plate; 22. Brake wheel. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1 - Figure 5 A wind power generation aluminum core transformer with lightning overvoltage protection includes: a transformer body 1, a moving mechanism 2 and a lightning protection component 3. The lightning protection component 3 is located on the top of the transformer body 1, and the moving mechanism 2 is located on the bottom of the transformer body 1.

[0026] The lightning protection component 3 includes a fixed frame 31, a lifting mechanism 32, a lightning rod 33, and a drive mechanism 34. The drive mechanism 34 and the lifting mechanism 32 are both located on the top of the fixed frame 31. The drive mechanism 34 is located on one side of the lifting mechanism 32. The lightning rod 33 is located at the top of the lifting mechanism 32. The fixed frame 31 is fixedly installed on the top of the transformer body 1.

[0027] The present invention provides a wind power generation aluminum core transformer with lightning overvoltage protection. The moving mechanism 2 is used to move the transformer body 1, which effectively saves the physical strength of the workers to carry it. The lightning protection component 3 is used to protect the transformer body 1 from lightning, which effectively improves the safety of the transformer body 1.

[0028] Furthermore, the center of the fixing frame 31 is provided with a threaded hole in an annular shape, and the outer side of the fixing frame 31 is provided with threaded holes in an "equilateral triangle" shape, which provides conditions for the installation of the lightning rod 33. The bottom of the fixing cylinder 321 and the bottom of the three support rods 325 are provided with through holes. The fixing cylinder 321 and the three support rods 325 are all threadedly connected to the threaded holes on the fixing frame 31 by screws through the through holes, which can quickly install the lightning rod 33 on the fixing frame 31 and increase the installation strength of the lightning rod 33.

[0029] Further, the lifting mechanism 32 includes a fixed cylinder 321, two slide rails 322, a circular slider 323, a fixed rod 324, and three support rods 325. The three support rods 325 are arranged in a circular array on the outer wall of the fixed cylinder 321. The fixed cylinder 321 is fixedly installed on the top of the fixed frame 31. The two slide rails 322 are symmetrically fixedly installed on the inner wall of the fixed cylinder 321. The circular slider 323 is slidably connected to the two slide rails 322. The fixed rod 324 is fixedly installed on the top of the circular slider 323. The lightning rod 33 is fixedly connected to the top of the fixed rod 324. The drive mechanism 34 includes a fixed box 341, a take-up roller 342, a steel rope 343, a pulley 1 344, a pulley 2 345, a mounting block 346, a pulley 347, a mounting shell 348, a motor 349, a gear 1 3410, and a gear 2 3411. The gear 2 3411 is fixedly connected to one end of the take-up roller 342 extending into the mounting shell 348. The housing 348 is fixedly installed on one side of the fixed box 341. The take-up roller 342 is rotatably connected to the inside of the fixed box 341. The fixed box 341 is fixedly installed on the top of the fixed frame 31. Gear 1 3410 is fixedly connected to the output end of the motor 349. The motor 349 is fixedly installed on the inner side wall of the housing 348. Gear 1 3410 and gear 2 3411 are meshed together. Pulley 347 is fixedly connected to the bottom of the circular slider 323. Pulley 2 345 is fixedly installed on the top of the outer side wall of the fixed cylinder 321. Pulley 1 344 is fixedly installed on one side of the fixed box 341. The mounting block 346 is fixedly installed on the top of the outer side wall of the fixed cylinder 321. The mounting block 346 and pulley 2 345 are symmetrically arranged. The steel rope 343 is wound on the take-up roller 342. The end of the steel rope 343 away from the take-up roller 342 passes around pulley 347, pulley 2 345, and pulley 1 344 respectively and is fixedly connected to the mounting block 346.

[0030] Specifically, by starting the motor 349, the motor 349 drives the gear 3410 to rotate. The gear 3410, through meshing transmission, drives the gear 3411 and the winding roller 342 to rotate forward inside the fixed box 341. When the winding roller 342 rotates, it releases or winds up the steel rope 343 wound on it. When lightning protection is required, the motor 349 reverses, and the winding roller 342 winds up the steel rope 343. The steel rope 343 applies an upward pulling force to the circular slider 323 through the pulley 347, overcoming gravity and causing the circular slider 323 to move. Slide upward along the slide rail 322, and then push the lightning rod 33 to the high position through the fixed rod 324. After the lightning rod 33 is raised to the working height, it can act as a lightning arrester in thunderstorms, introducing the lightning overvoltage into itself and discharging it to the ground through the grounding device, thereby effectively protecting the transformer body 1 from lightning overvoltage and preventing lightning strikes from damaging the transformer's internal windings and insulation structure. After use, the motor 349 can be restarted to rotate forward, releasing the steel rope 343, causing the circular slider 323 to slide down and drive the lightning rod 33 to descend and reset.

[0031] Furthermore, the moving mechanism 2 includes two mounting plates 21 symmetrically fixedly installed at the bottom of the transformer body 1, and brake wheels 22 symmetrically fixedly installed at the bottom of the two mounting plates 21.

[0032] Specifically, by pushing the transformer body 1, the brake wheel 22 rolls, thereby moving the transformer body 1 to the predetermined installation position. Once in place, the position is locked by the braking function of the brake wheel 22, completing the handling and positioning, effectively saving the physical strength of the staff.

[0033] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind power generation aluminum core transformer with lightning overvoltage protection, characterized in that, include: The transformer body (1), the moving mechanism (2) and the lightning protection component (3) are provided. The lightning protection component (3) is located on the top of the transformer body (1) and the moving mechanism (2) is located on the bottom of the transformer body (1). The lightning protection component (3) includes a fixed frame (31), a lifting mechanism (32), a lightning rod (33), and a driving mechanism (34). The driving mechanism (34) and the lifting mechanism (32) are both located on the top of the fixed frame (31). The driving mechanism (34) is located on one side of the lifting mechanism (32). The lightning rod (33) is located at the top of the lifting mechanism (32). The fixed frame (31) is fixedly installed on the top of the transformer body (1).

2. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 1, characterized in that: The lifting mechanism (32) includes a fixed cylinder (321), two slide rails (322), a circular slider (323), a fixed rod (324), and three support rods (325). The three support rods (325) are arranged in a circular array on the outer side wall of the fixed cylinder (321). The fixed cylinder (321) is fixedly installed on the top of the fixed frame (31).

3. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 2, characterized in that: The center of the fixing frame (31) is provided with a threaded hole in an annular shape, and the outer side of the fixing frame (31) is provided with threaded holes in an "equilateral triangle" shape.

4. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 2, characterized in that: The bottom of the fixed cylinder (321) and the bottom of the three support rods (325) are provided with through holes. The fixed cylinder (321) and the three support rods (325) are all threadedly connected to the threaded holes on the fixed frame (31) by screws through the through holes.

5. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 2, characterized in that: Two slide rails (322) are symmetrically fixedly installed on the inner side wall of the fixed cylinder (321), the circular slider (323) is slidably connected to the two slide rails (322), the fixed rod (324) is fixedly installed on the top of the circular slider (323), and the lightning rod (33) is fixedly connected to the top of the fixed rod (324).

6. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 1, characterized in that: The drive mechanism (34) includes a fixed box (341), a take-up roller (342), a steel rope (343), a pulley one (344), a pulley two (345), a mounting block (346), a pulley three (347), a mounting shell (348), a motor (349), a gear one (3410) and a gear two (3411). The gear two (3411) is fixedly connected to one end of the take-up roller (342) extending into the mounting shell (348). The mounting shell (348) is fixedly installed on one side of the fixed box (341). The take-up roller (342) is rotatably connected to the inside of the fixed box (341). The fixed box (341) is fixedly installed on the top of the fixed frame (31).

7. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 6, characterized in that: The first gear (3410) is fixedly connected to the output end of the motor (349), the motor (349) is fixedly installed on the inner side wall of the mounting shell (348), and the first gear (3410) is meshed with the second gear (3411).

8. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 6, characterized in that: The third pulley (347) is fixedly connected to the bottom of the circular slider (323), the second pulley (345) is fixedly installed on the top of the outer wall of the fixed cylinder (321), the first pulley (344) is fixedly installed on one side of the fixed box (341), and the mounting block (346) is fixedly installed on the top of the outer wall of the fixed cylinder (321). The mounting block (346) and the second pulley (345) are symmetrically arranged.

9. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 7, characterized in that: The steel rope (343) is wound around the take-up roller (342), and the end of the steel rope (343) away from the take-up roller (342) passes through pulley three (347), pulley two (345), pulley one (344) and is fixedly connected to the mounting block (346).

10. A wind power generation aluminum core transformer with lightning overvoltage protection according to claim 1, characterized in that: The moving mechanism (2) includes two mounting plates (21) symmetrically fixedly installed at the bottom of the transformer body (1), and brake wheels (22) symmetrically fixedly installed at the bottom of the two mounting plates (21).

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