A photovoltaic prefabricated cabin substation

Abstract

The present application relates to the technical field of power equipment, and especially relates to a photovoltaic prefabricated cabin substation, which comprises a prefabricated cabin substation main body and a placing room arranged on the prefabricated cabin substation main body; a transformer arranged in the placing room, a supporting seat arranged at the end of the transformer and a translation self-positioning device arranged between the prefabricated cabin substation main body and the supporting seat. The present application does not need to disassemble the cabin top to hoist and install the transformer, completely retains the integrated sealing structure of the top of the cabin body, avoids the hidden danger of top sealing aging and water leakage, guarantees the stable operation of the transformer, can also reduce the size of the cabin body and the use cost, eliminates the risk of knocking the equipment in the cabin by high-altitude hoisting, solves the trouble of repeatedly correcting the fixed position of the transformer in the traditional forklift and hoisting operation, relies on the integrated positioning mechanism for automatic correction, saves manual prying, improves the installation precision and efficiency, shortens the construction and power-off time when replacing the transformer, and the equipment is preassembled in the factory, and can be used after being powered on on site, so that the on-site construction period is effectively compressed.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a photovoltaic prefabricated substation. Background Technology

[0002] Prefabricated substations are highly prefabricated and occupy a small area, making them widely used in photovoltaic projects. Due to the large weight and size of the transformers, installation in the prefabricated substation mainly adopts two methods: vertical lifting by crane and lateral movement by forklift.

[0003] Vertical hoisting operations require the removal of the top cover of the cabin, and the transformer is lowered into place by a crane. This necessitates the installation of an independent sealing structure for the top cover, which breaks the sealing structure at the top of the cabin. After long-term operation, the sealing components of the top structure will age and wear, resulting in a decrease in the cabin's sealing performance, causing water leakage inside the cabin, which will disrupt the transformer's closed heat dissipation environment. Furthermore, the cover needs to be restored in a certain amount of time, which will prolong the power outage time when the transformer is replaced. At the same time, objects suspended at high altitudes are easily affected by wind and may sway, posing a risk of hitting the cabin walls and damaging the transformer bushings. Therefore, the cabin needs to reserve a large installation space and also requires a larger cabin, increasing the use and installation costs.

[0004] While the forklift-assisted lateral sliding installation method can reduce the space reserved inside the compartment, after the transformer slides into the compartment, the horizontal and vertical alignment needs to be repeatedly corrected or completely manually pried and corrected. Due to the limited space inside the compartment, the alignment time is long, and the transformer is also prone to collision with the inside of the compartment during the process of moving and calibrating the transformer position. Summary of the Invention

[0005] In view of the problems in the above-mentioned or existing technologies, such as the damage to the sealed integrity of the prefabricated module during the hoisting and installation of the transformer in the photovoltaic prefabricated module substation, and the difficulty in alignment during hoisting and lateral installation, this invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a photovoltaic prefabricated substation.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] As a preferred embodiment of the photovoltaic prefabricated substation of the present invention, it includes a prefabricated substation body and a placement chamber disposed on the prefabricated substation body;

[0009] The transformer installed inside the placement chamber, the support base installed at the end of the transformer, and the translational self-positioning device installed between the main body of the prefabricated substation and the support base include a guide component installed inside the placement chamber, a longitudinal positioning component installed on the guide component, and a transverse positioning component installed between the guide component and the longitudinal positioning component.

[0010] The guide assembly includes a horizontal plate disposed inside the placement chamber and a support plate disposed on the outer wall of the horizontal plate;

[0011] The longitudinal positioning component includes a sliding seat disposed inside the support plate, a backing plate disposed inside the sliding seat, and a protrusion disposed on the outer wall of the sliding seat;

[0012] The lateral positioning component includes a side plate disposed inside the support plate and a guide rod disposed outside the side plate.

[0013] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the guiding assembly further includes a support column, the inner wall of the placement chamber is provided with a support column, the outer wall of the horizontal plate is provided with a support rod, the outer wall of the support rod is provided with a sliding rod, the outer wall of the sliding rod is sleeved with a sliding cylinder, the inner wall of the placement chamber is provided with an electric push rod, and the end of the electric push rod is provided with a rotating plate.

[0014] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the horizontal plate is sleeved on the outer wall of the support rod, one end of the rotating plate is disposed on the inner wall of the placement chamber, and the other end of the rotating plate is disposed on the outer wall of the sliding cylinder.

[0015] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the longitudinal positioning component further includes a connecting plate, the outer wall of the sliding cylinder is provided with a connecting plate, the end of the connecting plate is provided with a sliding block, the outer wall of the sliding block is provided with a sliding plate, and the outer wall of the sliding seat is provided with a positioning rod.

[0016] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the end of the sliding plate is disposed on the outer wall of the sliding seat, and the outer wall of the abutment plate abuts against the outer wall of the positioning rod.

[0017] As a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the lateral positioning component further includes a rotating shaft, the rotating shaft is provided inside the support plate through a bearing, the outer wall of the guide rod is provided with a guide groove, and a guide block is inserted into the inside of the guide groove.

[0018] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the guide block is disposed on the outer wall of the protrusion, and the side plate and guide rod are both sleeved on the outside of the rotating shaft.

[0019] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the translational self-positioning device further includes a support sliding assembly, which includes a movable plate. The movable plate is disposed inside the support plate, and an ear plate is disposed on the outer wall of the movable plate. A sealing cylinder is disposed inside the support plate, and a vent hole is opened on the outer wall of the sealing cylinder. A spring is disposed inside the sealing cylinder, and a piston rod is inserted into the sealing cylinder. A connecting block is disposed at the end of the piston rod, and a swing arm plate is disposed on the outer wall of the connecting block. A support rod is disposed at the end of the swing arm plate.

[0020] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the end of the spring abuts against the outer wall of the piston rod, and the end of the piston rod extends to the outside of the sealing cylinder.

[0021] In a preferred embodiment of the photovoltaic prefabricated substation of the present invention, the end of the support rod is provided with a stop post, the inside of the stop post is provided with a first rotating roller, and the outer wall of the support rod is provided with a second rotating roller.

[0022] The beneficial effects of the photovoltaic prefabricated substation of the present invention are as follows: The present invention eliminates the need to dismantle the top of the substation for lifting the transformer, fully preserves the integrated sealed structure of the substation, eliminates the problem of water leakage due to aging of the top seal, protects the stable operation of the transformer, reduces the size of the substation and lowers the cost of use, and avoids the risk of equipment collision when the transformer is lifted into the substation from a height. It also avoids the trouble of repeatedly correcting the final fixed position of the transformer when installing the transformer with a traditional forklift or hoist. Relying on the integrated positioning mechanism for automatic correction, the installation position can be quickly and automatically positioned and corrected, improving installation accuracy and efficiency, and shortening the construction and power outage time for transformer replacement. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the overall structure of a photovoltaic prefabricated substation;

[0025] Figure 2 This is a schematic diagram showing the connection between the transformer and the support base in a photovoltaic prefabricated substation.

[0026] Figure 3 This is a schematic diagram showing the connection between the main body of the prefabricated module substation and the translational self-positioning device in a photovoltaic prefabricated module substation.

[0027] Figure 4This is a schematic diagram showing the connection of the horizontal plate, sliding rod, and sliding cylinder in a photovoltaic prefabricated substation.

[0028] Figure 5 This is a schematic diagram showing the connection between the support plate and the longitudinal positioning component in a photovoltaic prefabricated substation.

[0029] Figure 6 This is a schematic diagram showing the connection between the sliding plate and the sliding seat in a photovoltaic prefabricated substation.

[0030] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0031] Figure 8 This is a half-sectional view of the support plate in a photovoltaic prefabricated substation.

[0032] Figure 9 This is a schematic diagram showing the connection between guide rods and guide blocks in a prefabricated photovoltaic substation.

[0033] Figure 10 This is a schematic diagram showing the connection between the movable plate and the ear plate in a photovoltaic prefabricated substation.

[0034] Figure 11 This is a half-sectional view of the sealing cylinder in a photovoltaic prefabricated substation.

[0035] Figure 12 This is a schematic diagram showing the connection between the support rod and the second rotating roller in a photovoltaic prefabricated substation.

[0036] The labels in the diagram represent: 1. Main body of the prefabricated substation; 2. Placement chamber; 3. Transformer; 4. Support base; 5. Translational self-positioning device; 51. Guide assembly; 511. Support column; 512. Support rod; 513. Horizontal plate; 514. Sliding rod; 515. Support plate; 516. Sliding cylinder; 517. Electric push rod; 518. Rotating plate; 52. Longitudinal positioning assembly; 521. Connecting plate; 522. Sliding block; 523. Sliding plate; 524. Sliding seat; 525. Support plate; 526. Protrusion; 527. Positioning rod; 53. Lateral positioning assembly; 531. Rotating shaft; 532. Side plate; 533. Guide rod; 534. Guide groove; 535. Guide block; 54. Support sliding assembly; 541. Movable plate; 542. Ear plate; 543. Sealing cylinder; 544. Vent hole; 545. Spring; 546. Piston rod; 547. Connecting block; 548. Swing arm plate; 549. Support rod; 5491. Abutment; 5492. Rotating roller one; 5493. Rotating roller two. Detailed Implementation

[0037] To make the above-mentioned objectives, features and advantages of the present invention more readily understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0039] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0040] Example 1, referring to Figures 1 to 9 This is the first embodiment of the present invention, which provides a photovoltaic prefabricated substation, including a prefabricated substation body 1 and a placement chamber 2 disposed on the prefabricated substation body 1;

[0041] Specifically, the transformer 3 located inside the placement chamber 2, the support base 4 located at the end of the transformer 3, and the translational self-positioning device 5 located between the prefabricated substation body 1 and the support base 4 include a guide component 51 located inside the placement chamber 2, a longitudinal positioning component 52 located on the guide component 51, and a transverse positioning component 53 located between the guide component 51 and the longitudinal positioning component 52.

[0042] Among them, the prefabricated substation body 1 is equipped with a sealing door on the outside for sealing the side opening of the placement chamber 2. The interior of the placement chamber 2 is equipped with an air conditioner for dissipating heat from the sealed space inside the placement chamber 2 after the transformer 3 is installed in the placement chamber 2.

[0043] Furthermore, the prefabricated substation body 1 has a placement chamber 2 inside. The opening of the placement chamber 2 faces the side of the prefabricated substation body 1. The translational self-positioning device 5 is installed on the prefabricated substation body 1 and located inside the placement chamber 2. The transformer 3 is installed inside the placement chamber 2. The support base 4 is fixedly installed at the bottom of the transformer 3. The main body of the support base 4 is "H" shaped and is directly fixedly connected to the bottom of the transformer 3 by bolts. The middle part of the support base 4 is also fixedly connected to two fixing plates with holes at both ends. The bottom wall of the placement chamber 2 has threaded holes that match the through holes at both ends of the fixing plates. When the transformer 3 moves to the specified position in the placement chamber 2, the holes at both ends of the fixing plates coincide with the threaded holes on the bottom wall of the placement chamber 2, which facilitates positioning by bolts.

[0044] The translational self-positioning device 5 includes a guide component 51 installed inside the placement chamber 2 to support and move the transformer 3, a longitudinal positioning component 52 installed on the guide component 51 for calibrating the longitudinal position of the transformer 3, and a lateral positioning component 53 installed between the guide component 51 and the longitudinal positioning component 52 for calibrating the lateral position of the transformer 3.

[0045] Specifically, the guide assembly 51 includes a horizontal plate 513 disposed inside the placement chamber 2 and a support plate 515 disposed on the outer wall of the horizontal plate 513;

[0046] Furthermore, the guide assembly 51 includes a horizontal plate 513 that is longitudinally movably connected inside the placement chamber 2 and a support plate 515 that is fixedly connected to the outer wall of the horizontal plate 513. Both the horizontal plate 513 and the support plate 515 are steel plates, and a baffle is also fixedly connected to one side of the upper surface of the support plate 515.

[0047] Specifically, the longitudinal positioning component 52 includes a sliding seat 524 disposed inside the support plate 515, a stop plate 525 disposed inside the sliding seat 524, and a protrusion 526 disposed on the outer wall of the sliding seat 524.

[0048] Furthermore, the longitudinal positioning component 52 includes a sliding seat 524 slidably connected inside the support plate 515, a stop plate 525 rotatably connected inside the sliding seat 524, and protrusions 526 fixedly connected to both sides of the sliding seat 524.

[0049] Among them, a torsion spring is installed at the connection between the abutment plate 525 and the sliding seat 524. Under normal conditions, the elasticity of the torsion spring causes the abutment plate 525 to rotate counterclockwise. The support plate 515 has a cavity inside for the sliding seat 524 and the protrusion 526 to slide together.

[0050] Specifically, the lateral positioning component 53 includes a side plate 532 disposed inside the support plate 515 and a guide rod 533 disposed outside the side plate 532;

[0051] Furthermore, the lateral positioning component 53 includes a side plate 532 rotatably connected inside the support plate 515 and a guide rod 533 rotatably connected outside the side plate 532.

[0052] The side of the support plate 515 is provided with a square groove for the rotation of the side plate 532.

[0053] Reference Figures 1 to 5The guide assembly 51 also includes a support column 511. The inner wall of the placement chamber 2 is provided with a support column 511. The outer wall of the support column 511 is provided with a support rod 512. The outer wall of the horizontal plate 513 is provided with a sliding rod 514. The outer wall of the sliding rod 514 is fitted with a sliding cylinder 516. The inner wall of the placement chamber 2 is provided with an electric push rod 517. The end of the electric push rod 517 is provided with a rotating plate 518.

[0054] Furthermore, the guide assembly 51 also includes support columns 511. Support columns 511 are longitudinally fixedly connected at the four corners of the interior of the placement chamber 2. Each pair of support columns 511 forms a group, and support rods 512 are fixedly connected to the top and bottom of the opposite surfaces of the two support columns 511 in each group. Sliding rods 514 are fixedly connected to both ends of the upper surface of the horizontal plate 513. A sliding cylinder 516 is longitudinally slidably sleeved on the outer surface of the sliding rod 514. An electric push rod 517 is rotatably installed on the inner wall of the placement chamber 2. A rotating plate 518 is rotatably installed on the output end of the electric push rod 517. The electric push rod 517 is an industrial-grade high-power push rod.

[0055] Specifically, the horizontal plate 513 is sleeved on the outer wall of the support rod 512, the end of the rotating plate 518 is set on the inner wall of the placement chamber 2, and the other end of the rotating plate 518 is set on the outer wall of the sliding cylinder 516.

[0056] Furthermore, the horizontal plate 513 is slidably sleeved on the outer surface of the support rod 512, one end of the rotating plate 518 is rotatably connected to the inner wall of the placement chamber 2, and the other end of the rotating plate 518 is rotatably connected to the outer wall of the sliding cylinder 516 through a pin.

[0057] Reference Figures 3 to 7 The longitudinal positioning component 52 also includes a connecting plate 521. The outer wall of the sliding cylinder 516 is provided with the connecting plate 521. The end of the connecting plate 521 is provided with a sliding block 522. The outer wall of the sliding block 522 is provided with a sliding plate 523. The outer wall of the sliding seat 524 is provided with a positioning rod 527.

[0058] Furthermore, the longitudinal positioning assembly 52 also includes a connecting plate 521, the connecting plate 521 is rotatably mounted on the outer surface of the sliding cylinder 516, the end of the connecting plate 521 away from the sliding cylinder 516 is rotatably connected to a sliding block 522 via a pin, the surface of the sliding block 522 away from the connecting plate 521 is fixedly connected to a sliding plate 523, and the surface of the sliding seat 524 located above the abutment plate 525 is fixedly connected to a positioning rod 527.

[0059] Specifically, the end of the sliding plate 523 is disposed on the outer wall of the sliding seat 524, and the outer wall of the abutment plate 525 abuts against the outer wall of the positioning rod 527.

[0060] Furthermore, the end of the sliding plate 523 away from the sliding block 522 is fixedly connected to the surface of the sliding seat 524, and the upper surface of the abutment plate 525 abuts against the surface of the positioning rod 527.

[0061] Reference Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9 The transverse positioning component 53 also includes a rotating shaft 531. The rotating shaft 531 is installed inside the support plate 515 through a bearing. The outer wall of the guide rod 533 is provided with a guide groove 534, and a guide block 535 is inserted into the guide groove 534.

[0062] Furthermore, the lateral positioning component 53 also includes a rotating shaft 531, and the rotating shaft 531 is rotatably connected to the inside of the support plate 515 via a bearing. The outer surface of the guide rod 533 is provided with a guide groove 534, and a guide block 535 is inserted into the inside of the guide groove 534.

[0063] Among them, the guide groove 534 opened on the outer surface of the guide rod 533 is divided into three sections, with straight grooves at both ends and a threaded groove in the middle. The meshing of the guide block 535 with the threaded groove causes the guide rod 533 to rotate half a turn. That is, the guide rod 533 drives the side plate 532 to rotate ninety degrees through the rotating shaft 531. The side plate 532 abuts against the side wall of the support base 4 during the rotation process, thereby correcting the lateral position of the transformer 3.

[0064] Specifically, the guide block 535 is disposed on the outer wall of the protrusion 526, and the side plate 532 and the guide rod 533 are both sleeved on the outside of the rotating shaft 531;

[0065] Furthermore, the surface of the guide block 535 away from the guide rod 533 is fixedly connected to the outer surface of the protrusion 526, and the side plate 532 and the guide rod 533 are both fixedly sleeved on the outer surface of the rotating shaft 531.

[0066] Reference Figure 3 , Figure 4 , Figure 5 , Figure 10 , Figure 11 and Figure 12 The translational self-positioning device 5 also includes a support sliding assembly 54, which includes a movable plate 541. The movable plate 541 is provided inside the support plate 515, and an ear plate 542 is provided on the outer wall of the movable plate 541. A sealing cylinder 543 is provided inside the support plate 515, and a vent hole 544 is provided on the outer wall of the sealing cylinder 543. A spring 545 is provided inside the sealing cylinder 543, and a piston rod 546 is inserted into the spring 545. A connecting block 547 is provided at the end of the piston rod 546, and a swing arm plate 548 is provided on the outer wall of the connecting block 547. A support rod 549 is provided at the end of the swing arm plate 548.

[0067] Furthermore, the translational self-positioning device 5 also includes a support sliding assembly 54, which includes a movable plate 541. A limiting groove is formed on the upper surface of the support plate 515. T-shaped guide rods are fixedly connected at equal intervals inside the limiting groove. The movable plate 541 is longitudinally slidably connected inside the limiting groove. The T-shaped guide rods penetrate the movable plate 541. Steel balls are equidistantly installed inside the movable plate 541, with the surface of the steel balls extending to the upper surface of the movable plate 541. An ear plate 542 is fixedly connected to the center of the side of the movable plate 541. A sealing cylinder 543 is embedded and fixedly connected to the side of the support plate 515. The outer wall of the sealing cylinder 543... A vent hole 544 is provided that communicates with the interior of the sealing cylinder 543. A spring 545 is movably installed inside the sealing cylinder 543. A piston rod 546 is inserted into the interior of the sealing cylinder 543. The diameter of one end of the piston rod 546 extending into the interior of the sealing cylinder 543 is larger than the diameter of the other end. A sealing ring is fitted on the outside of the larger diameter end and is slidably connected to the interior of the sealing cylinder 543 through the sealing ring. A connecting block 547 is fixedly connected to the smaller diameter end of the piston rod 546. A rocker arm plate 548 is rotatably connected to the outer surface of the connecting block 547 through a pin. A support rod 549 is rotatably connected to the end of the rocker arm plate 548 away from the connecting block 547 through a pin.

[0068] Specifically, the end of the spring 545 abuts against the outer wall of the piston rod 546, and the end of the piston rod 546 extends to the outside of the sealing cylinder 543;

[0069] Furthermore, one end of the spring 545 abuts against the surface of the piston rod 546, the other end of the spring 545 abuts against the inner wall of the sealing cylinder 543, the end of the piston rod 546 away from the spring 545 extends to the outside of the sealing cylinder 543, and the side of the support plate 515 is provided with a cylindrical groove for the lateral sliding of the connecting block 547.

[0070] Specifically, the end of the support rod 549 is provided with a stop post 5491, the inside of the stop post 5491 is provided with a first rotating roller 5492, and the outer wall of the support rod 549 is provided with a second rotating roller 5493;

[0071] Furthermore, a support rod 549 is integrally fixedly connected to the end of the support rod 549. A rotating roller 5492 is provided inside the support rod 5491. The surface of the rotating roller 5492 extends to the outer surface of the support rod 5491. A rotating roller 5493 is abutted against the outer wall of the support rod 549. The rotating roller 5493 is rotatably connected to the main body 1 of the prefabricated substation and is located below the opening of the placement chamber 2.

[0072] In use, the electric push rod 517 is activated to shorten the stroke. The electric push rod 517 pulls the rotating plate 518 to rotate counterclockwise. The rotating plate 518 drives the sliding cylinder 516 to slide along the sliding rod 514. The sliding cylinder 516, through the sliding rod 514, synchronously drives the horizontal plate 513 to slide outward along the support rod 512. The horizontal plate 513 drives the support plate 515 to slide as a whole, causing the support plate 515 to extend from inside the placement chamber 2 to the outside of the prefabricated substation body 1. During the outward movement of the support plate 515, the support rod 549 is simultaneously dragged outward. At this time, the rotating roller 5492 rolls on the bottom wall of the placement chamber 2. After the support rod 549 is disengaged from the limit of the rotating roller 5493, the spring 545 inside the sealing cylinder 543... The release of the elastic force pushes the piston rod 546 outward. The piston rod 546 drives the swing arm plate 548 to open the support rod 549 through the connecting block 547, so that the abutment 5491 touches the ground. Since the ventilation hole 544 on the side wall of the sealing cylinder 543 restricts the internal air flow speed, it forms a damping buffer for the sliding of the piston rod 546. When the forklift or lifting equipment lifts the transformer 3 above the support plate 515 and releases it, the bottom support seat 4 of the transformer 3 is placed stably on the upper surface of the support plate 515. The support rod 549 bears and offsets the instantaneous heavy pressure of the support seat 4, avoiding the deformation caused by the sudden heavy pressure on the end of the support plate 515 away from the main body 1 of the prefabricated substation, and the transformer 3 detaching or slipping after deformation.

[0073] Among them, the support rod 549 and the abutment 5491 form a ground support structure, which can share the instantaneous impact load of the transformer 3 borne by the cantilever end of the support plate 515, prevent the support plate 515 from bending and deforming under pressure, and extend the overall service life of the guide assembly 51. The sealing cylinder 543, spring 545, piston rod 546, together with the vent 544, form a damping buffer mechanism. The spring 545 provides support force. The cantilever hoisting load can be completed by relying on the support sliding assembly 54 of the translation self-positioning device 5, reducing the auxiliary tools on the construction site and shortening the construction time before the transformer 3 enters the cabin.

[0074] After the forklift or lifting equipment hoists the transformer 3 above the support plate 515, the output end of the electric push rod 517 is extended by controlling it. The electric push rod 517 pushes the rotating plate 518 to rotate clockwise. The rotating plate 518 drives the sliding cylinder 516 to slide upward along the sliding rod 514. The sliding cylinder 516 drives the horizontal plate 513, the support plate 515, and the upper support seat 4 to move synchronously with the transformer 3 into the placement chamber 2 through the sliding rod 514. When the support plate 515 moves back, it drags the support rod 549 to slide against the surface of the rotating roller 5493. The rotating roller 5493 applies an upward force to the support rod 549. The limiting force forces the support rod 549 to fold inward around the swing arm plate 548. The swing arm plate 548 pushes the piston rod 546 in the opposite direction through the connecting block 547 to compress the spring 545. The air in the sealing cylinder 543 is slowly discharged through the vent 544. During the folding process of the support rod 549, the abutment 5491 pushes the ear plate 542 upward, which drives the movable plate 541 to rise upward along the limiting groove of the support plate 515. The support seat 4 is completely separated from the surface of the support plate 515 and is only supported by the steel ball contact of the movable plate 541, which greatly reduces the sliding friction of subsequent positioning calibration and ensures that the transformer 3 moves smoothly without deviation.

[0075] Among them, the rotating roller 5493 serves as a limiting fulcrum and can automatically drive the support rod 549 and the swing arm plate 548 to fold inward and store when the support plate 515 moves back, without the need for manual recovery of the support structure. The abutment 5491 lifts the ear plate 542 synchronously with the support rod 549 as it folds, which drives the movable plate 541 to lift the support seat 4. The steel balls built into the movable plate 541 replace the planar contact of the support plate 515, converting sliding friction into rolling friction, which greatly reduces the resistance when the longitudinal positioning component 52 pushes the support seat 4, reduces the load on the electric push rod 517, and reduces the energy consumption of the equipment. The movable plate 541 does not lift after it extends out, but only lifts out when the transformer 3 is fully placed and moving back. This is to prevent the transformer 3 from becoming unstable and sliding when it is not completely detached from the transformer 3 during hoisting and forklift placement, thus increasing the stability of placing the transformer 3.

[0076] Among them, the support rod 549 and the swing arm plate 548 can be folded completely and compactly stored in the space between the two support plates 515, which is suitable for the narrow interior layout of the placement chamber 2.

[0077] Among them, the lower surface of the support base 4 is a non-smooth contact surface, which engages with the steel ball of the movable plate 541 for limiting. The transformer 3 will not slide on its own during the translation process of the support plate 515, preventing the support base 4 from shifting prematurely before moving to the specified position after the horizontal and vertical positioning calibration. The steel ball reduces the friction, but the friction does not need to be too low, ensuring the stability of the transformer 3 when it is placed and moved slowly.

[0078] When the sliding cylinder 516 slides upward, the top of the traction connecting plate 521 is raised synchronously. The connecting plate 521 pulls the sliding block 522 and the sliding plate 523 to push the sliding seat 524 forward along the inner cavity of the support plate 515. The sliding seat 524 carries the abutment plate 525 and moves synchronously into the depth of the placement chamber 2. After the abutment plate 525 is separated from the positioning rod 527, the torsion spring inside the sliding seat 524 drives the abutment plate 525 to rotate outward and unfold 90 degrees. The sliding seat 524 continues to move forward until the front of the abutment plate 525 is in contact with the front end of the support seat 4. The abutment plate 525 continues to push the support seat 4 forward along the steel ball of the movable plate 541 to realize the longitudinal position correction of the transformer 3.

[0079] Simultaneously, the outer wall protrusion 526 of the sliding seat 524 moves forward synchronously with the sliding seat 524, and the outer guide block 535 of the protrusion 526 slides along the guide groove 534 on the surface of the guide rod 533. The threaded structure in the middle section of the guide groove 534 drives the guide rod 533 to rotate around the rotating shaft 531. The guide rod 533 drives the side plate 532 to rotate ninety degrees synchronously with the rotating shaft 531. The side wall of the side plate 532 fits against the outer walls of both sides of the support seat 4, and the bidirectional compression corrects the lateral offset of the support seat 4. With the longitudinal pushing of the abutment plate 525, the through hole of the bottom fixing plate of the support seat 4 is aligned with the threaded hole of the bottom wall of the placement chamber 2. This eliminates the drawback of the traditional transformer 3 being hoisted or moved into the cabin and then manually adjusting the installation position of the transformer 3 repeatedly. It also avoids the trouble of opening the top of the prefabricated substation body 1 during hoisting and installation.

[0080] When the support plate 515 moves inward to half of its total stroke, the positioning calibration process is completed. During the second half of the return stroke, the sliding cylinder 516 falls downward along the sliding rod 514, the connecting plate 521 pulls the sliding seat 524 back to its original position, and the abutment plate 525 re-contacts the positioning rod 527 and rotates in the opposite direction to be stored inside the sliding seat 524. The protrusion 526 drives the guide block 535 to slide in the opposite direction along the guide groove 534, driving the guide rod 533, the rotating shaft 531, and the side plate 532 to rotate and be stored inside the cavity of the support plate 515, so as to avoid the side plate 532 and the abutment plate 525 occupying the space of the placement chamber 2. After all the positioning components are stored, the second half of the return stroke ends, and the through hole of the bottom fixing plate of the support seat 4 is completely aligned with the threaded hole of the bottom wall of the placement chamber 2. Finally, the operator inserts a bolt through the support seat 4. The fixing plate is locked to the threaded hole on the bottom wall of the placement chamber 2, and the transformer 3 is fixed inside the placement chamber 2. The entire set of translational self-positioning device 5 is completely stored inside the placement chamber 2. The installation process of the photovoltaic prefabricated substation is completed. When the placement chamber 2 does not need to be hoisted, a top opening is reserved. The top wall of the main body 1 of the prefabricated substation can be made into a fully enclosed sealing structure to improve the dustproof, waterproof and moisture-proof performance of the placement chamber 2 and protect the transformer 3 to operate stably for a long time. The entire device only requires a single power drive device, electric push rod 517, and completes the integrated structure of translation, positioning and support. It can be completely assembled inside the placement chamber 2 during the factory prefabrication stage. On-site, only the electric push rod 517 needs to be connected for power supply. There is no need for on-site assembly of tooling equipment, which shortens the on-site installation cycle of the photovoltaic prefabricated substation.

[0081] This invention eliminates the need to dismantle the top of the cabin for the installation of the transformer 3, preserving the integrated sealed structure of the cabin and preventing leaks due to aging of the top seal. This protects the transformer 3 and ensures stable operation. It also reduces the cabin size and lowers operating costs. Furthermore, it avoids the risk of equipment damage when the transformer is hoisted into the cabin from a height. It also avoids the hassle of repeatedly correcting the final fixed position of the transformer 3 when using traditional forklifts or hoisting equipment. The integrated positioning mechanism automatically corrects the position, eliminating the need for manual prying operations, improving installation accuracy and efficiency, and shortening construction and power outage time for transformer replacement. The entire set of equipment is pre-assembled in the factory and can be used on-site simply by connecting it to power, significantly shortening the on-site construction cycle.

[0082] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A photovoltaic prefabricated substation, characterized in that: Includes a prefabricated substation main body (1) and a placement chamber (2) disposed on the prefabricated substation main body (1); and, The transformer (3) located inside the placement chamber (2), the support base (4) located at the end of the transformer (3), and the translational self-positioning device (5) located between the prefabricated substation body (1) and the support base (4) include a guide assembly (51) located inside the placement chamber (2), a longitudinal positioning assembly (52) located on the guide assembly (51), and a transverse positioning assembly (53) located between the guide assembly (51) and the longitudinal positioning assembly (52); wherein, The guide assembly (51) includes a horizontal plate (513) disposed inside the placement chamber (2) and a support plate (515) disposed on the outer wall of the horizontal plate (513); and, The longitudinal positioning component (52) includes a sliding seat (524) disposed inside the support plate (515), a stop plate (525) disposed inside the sliding seat (524), and a protrusion (526) disposed on the outer wall of the sliding seat (524); and, The lateral positioning component (53) includes a side plate (532) disposed inside the support plate (515) and a guide rod (533) disposed outside the side plate (532).

2. The photovoltaic prefabricated substation as described in claim 1, characterized in that: The guide assembly (51) also includes a support column (511). The inner wall of the placement chamber (2) is provided with a support column (511). The outer wall of the support column (511) is provided with a support rod (512). The outer wall of the horizontal plate (513) is provided with a sliding rod (514). The outer wall of the sliding rod (514) is fitted with a sliding cylinder (516). The inner wall of the placement chamber (2) is provided with an electric push rod (517). The end of the electric push rod (517) is provided with a rotating plate (518).

3. The photovoltaic prefabricated substation as described in claim 2, characterized in that: The horizontal plate (513) is sleeved on the outer wall of the support rod (512), the end of the rotating plate (518) is set on the inner wall of the placement chamber (2), and the other end of the rotating plate (518) is set on the outer wall of the sliding cylinder (516).

4. The photovoltaic prefabricated substation as described in claim 2, characterized in that: The longitudinal positioning component (52) further includes a connecting plate (521), the outer wall of the sliding cylinder (516) is provided with the connecting plate (521), the end of the connecting plate (521) is provided with a sliding block (522), the outer wall of the sliding block (522) is provided with a sliding plate (523), and the outer wall of the sliding seat (524) is provided with a positioning rod (527).

5. The photovoltaic prefabricated substation as described in claim 4, characterized in that: The end of the sliding plate (523) is disposed on the outer wall of the sliding seat (524), and the outer wall of the abutment (525) abuts against the outer wall of the positioning rod (527).

6. The photovoltaic prefabricated substation as described in claim 4, characterized in that: The lateral positioning component (53) also includes a rotating shaft (531). The rotating shaft (531) is provided inside the support plate (515) through a bearing. The outer wall of the guide rod (533) is provided with a guide groove (534). A guide block (535) is inserted into the guide groove (534).

7. The photovoltaic prefabricated substation as described in claim 6, characterized in that: The guide block (535) is disposed on the outer wall of the protrusion (526), ​​and the side plate (532) and the guide rod (533) are both sleeved on the outside of the rotating shaft (531).

8. The photovoltaic prefabricated substation as described in claim 6, characterized in that: The translational self-positioning device (5) further includes a support sliding assembly (54), which includes a movable plate (541). The movable plate (541) is provided inside the support plate (515). The outer wall of the movable plate (541) is provided with an ear plate (542). The inner wall of the support plate (515) is provided with a sealing cylinder (543). The outer wall of the sealing cylinder (543) is provided with a vent hole (544). The inner wall of the sealing cylinder (543) is provided with a spring (545). The inner wall of the sealing cylinder (543) is provided with a piston rod (546). The end of the piston rod (546) is provided with a connecting block (547). The outer wall of the connecting block (547) is provided with a swing arm plate (548). The end of the swing arm plate (548) is provided with a support rod (549).

9. The photovoltaic prefabricated substation as described in claim 8, characterized in that: The end of the spring (545) abuts against the outer wall of the piston rod (546), the end of the piston rod (546) extending to the outside of the sealing cylinder (543).

10. The photovoltaic prefabricated substation as described in claim 8, characterized in that: The end of the support rod (549) is provided with a stop post (5491), the inside of the stop post (5491) is provided with a first rotating roller (5492), and the outer wall of the support rod (549) is provided with a second rotating roller (5493).

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