Novel prefabricated photovoltaic substation structure

By introducing primary and secondary heat dissipation mechanisms into photovoltaic substations, the problem of insufficient cable heat dissipation was solved, improving cable protection and heat dissipation, extending cable life, and increasing the heat dissipation efficiency of photovoltaic substations.

CN120879374AInactive Publication Date: 2025-10-31YUNNAN XINNENG POWER ENG CO LTD
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Patent Information

Application Number
CN202511349802.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2025-10-31
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing photovoltaic substations suffer from insufficient heat dissipation, especially the Joule heating effect generated by cables after power is applied, which is difficult to dissipate effectively, leading to insulation aging and cable corrosion. Furthermore, the cables are susceptible to moisture damage when exposed to the external environment.

Method used

A novel prefabricated photovoltaic substation structure was designed, employing a primary heat dissipation mechanism that conducts heat through partitions and a secondary heat dissipation mechanism that accelerates heat dissipation through airflow, respectively dissipating heat from the cables and the interior of the enclosure, preventing cable corrosion and extending service life.

Benefits of technology

Effective heat dissipation is improved, preventing cable corrosion, extending cable lifespan, and enhancing the overall heat dissipation performance of photovoltaic substations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of photovoltaic substations, in particular to a novel prefabricated photovoltaic substation structure which comprises a base, a supporting seat is mounted at the lower end of the base, a box is mounted at the upper end of the base, a box top is arranged at the upper end of the box, a plurality of box doors are mounted on the box, and a plurality of partition plates are mounted in the box. A plurality of partition plates are arranged in the box body and divide the box body into three spaces, a primary heat dissipation mechanism used for dissipating heat of a cable is arranged between every two adjacent partition plates, and a secondary heat dissipation mechanism used for dissipating heat of the interior of the box body is arranged in the box body; the lower end of the partition plate penetrates through the base, a heat dissipation plate is fixed to the lower end of the partition plate, a plurality of heat dissipation fins are installed at the lower end of the heat dissipation plate, and a plurality of heat dissipation openings matched with the heat dissipation plate are formed in the supporting seat. Compared with the prior art, the heat dissipation effect on the cable and the photovoltaic transformer substation is good, protection on the cable is good, and the service life of the cable is prolonged.
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Description

Technical Field

[0001] This invention relates to the field of photovoltaic substations, specifically a novel prefabricated photovoltaic substation structure. Background Technology

[0002] Prefabricated photovoltaic (PV) substations integrate PV panels, inverters, transformers, medium-voltage switchgear, and intelligent control equipment in a factory to form a complete power system. On-site assembly is all that's needed for grid connection and power generation. It's a new type of power facility specifically designed for PV power generation systems. By prefabricating and integrating PV power generation, substation, and transmission modules in the factory, it enables rapid deployment and efficient operation and maintenance. It is suitable for scenarios such as industrial parks, commercial rooftops, and rural power stations. In general, prefabricated PV substations, with their high efficiency, intelligence, and environmental friendliness, have become an important support for PV projects.

[0003] For example, the invention with application number CN107069512A discloses an efficient heat dissipation mechanism and method for a prefabricated photovoltaic power generation substation, including a frame and a cover. The cover is a liftable cover, and a lifting and fixing device is provided between the liftable cover and the frame. The lifting and fixing device includes: a lower horizontal perforated plate and an upper horizontal perforated plate fixed at corresponding positions on the upper inner side of the frame and the bottom inner side of the cover, respectively. A space is left between the upper and lower horizontal perforated plates to accommodate a jack. The vertical holes of the upper and lower horizontal perforated plates correspond, and a connecting screw with an outer positioning support round tube passes through the vertical holes of the upper and lower horizontal perforated plates and is screwed with a nut. Rainproof baffle modules are fixed on the four sides of the cover, and rotating pull-out rainproof baffles are provided at the four corners of the top of the cover. However, the above application still has some shortcomings. In terms of substation heat dissipation design, although the ventilation area is expanded by the box lifting structure, its heat dissipation mechanism still relies on natural convection heat dissipation and lacks active cooling measures, resulting in the problem of internal heat accumulation not being fundamentally solved.

[0004] After the installation of photovoltaic substations, the internal cables of the equipment are piled up. When the cables are energized, they will generate a significant Joule heating effect, which is difficult to dissipate effectively through natural heat dissipation. Long-term operation will accelerate the aging of the insulation layer and reduce the life of the cables themselves. Most photovoltaic substations currently have cables entering from the bottom. On the one hand, the cables are exposed to the external environment and are prone to moisture, which will cause corrosion to their surface. On the other hand, the local heat source effect formed by the concentrated distribution of multiple cables further reduces the overall thermal management efficiency.

[0005] Therefore, based on the above problems, we have invented a new type of prefabricated photovoltaic substation structure. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a novel prefabricated photovoltaic substation structure to solve the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a novel prefabricated photovoltaic substation structure, comprising a base, a support seat installed at the lower end of the base, a box body installed at the upper end of the base, a box top provided at the upper end of the box body, multiple box doors installed on the box body, multiple partitions installed inside the box body, the multiple partitions dividing the box body into three spaces, a primary heat dissipation mechanism for dissipating heat from cables is provided between two adjacent partitions, and a secondary heat dissipation mechanism for dissipating heat from the interior of the box body is provided inside the box body; The lower end of the partition plate passes through the base, and a heat sink plate is fixed to the lower end of the partition plate. Multiple heat sink fins are installed on the lower end of the heat sink plate, and the support base is provided with multiple heat dissipation ports that match the heat sink plate.

[0008] Furthermore, the primary heat dissipation mechanism includes two limiting plates disposed between two partitions. The two limiting plates are fixed to the inner wall of the box. An adjusting plate is provided between the two limiting plates and is slidably connected to the inner wall of the box. Two bidirectional screws are rotatably installed between the two limiting plates and are connected by a second transmission mechanism. A drive motor is installed on the partition. The drive shaft of the drive motor rotates through the drive motor and the limiting plate and is fixed to the bidirectional screws. Both bidirectional screws are threaded through the two adjusting plates. Multiple adjusting rods are installed on opposite sides of the two adjusting plates. A moving mechanism for moving the adjusting rods is provided inside the adjusting plate. Limiting holes that match the adjusting rods are provided on the limiting plates.

[0009] Furthermore, the second transmission mechanism includes two second pulleys, which are coaxially mounted with two bidirectional screws respectively, and are connected to each other by a synchronous belt drive.

[0010] Furthermore, the moving mechanism includes multiple adjusting slots on the adjusting plate, adjusting screws are rotatably installed in the adjusting slots, adjusting blocks are threaded onto the adjusting screws, the adjusting blocks are slidably installed against the inner wall of the adjusting slots, multiple adjusting rods are rotatably connected to multiple adjusting blocks respectively, the adjusting plate is provided with a transmission slot, multiple adjusting screws rotatably pass through the adjusting plate and extend into the transmission slot, adjacent two adjusting screws are connected by a first transmission mechanism, the adjusting screws located on the uppermost side of the two adjusting plates are coaxially mounted with a third pulley, the two third pulleys are connected by a synchronous belt, the adjusting plate is provided with a through hole matching the synchronous belt, one end of one of the adjusting screws rotatably passes through the adjusting plate and the housing and is fixed with a handle.

[0011] Furthermore, the first transmission mechanism includes two first pulleys, which are coaxially mounted with two adjusting screws respectively, and are connected to each other by a synchronous belt drive.

[0012] Furthermore, the secondary heat dissipation mechanism includes a spindle tube disposed below the base. The spindle tube is fixed to the base via a connecting rod. A vent is installed on the partition plate, and the vent is connected to the spindle tube via a duct. A rotating rod is installed inside the spindle tube, and two fixing plates are rotatably sleeved around the rotating rod. The fixing plates are fixed to the inner wall of the spindle tube. Fans are installed at both ends of the rotating rod. A rotating shaft is installed inside the spindle tube, and the rotating shaft is connected to the rotating rod via a first bevel gear set. The upper end of the rotating shaft passes through... The device consists of a spindle tube, a base, and a box top. A fixed column is rotatably fitted around the rotating shaft and fixed to the box top. A transmission box is rotatably mounted on the upper end of the fixed column. The upper end of the rotating shaft passes through the transmission box, and a transmission shaft is rotatably mounted inside the transmission box. The transmission shaft and the rotating shaft are connected by a second bevel gear set. One end of the fixed plate rotatably passes through the transmission shaft and is fitted with a fan blade. A tail fin is provided outside the transmission box. The tail fin and the fan blade are distributed on the opposite side of the transmission box, and the tail fin is fixed to the transmission box.

[0013] Furthermore, the first bevel gear set includes a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear being coaxially mounted with the rotating shaft, and the second bevel gear being coaxially mounted with the rotating rod.

[0014] Furthermore, the second bevel gear set includes a third bevel gear and a fourth bevel gear that mesh with each other. The third bevel gear is coaxially mounted with the transmission shaft, and the fourth bevel gear is coaxially mounted with the rotating shaft.

[0015] Furthermore, the external threads of two adjacent adjusting screws located on the same adjusting plate have opposite directions.

[0016] Furthermore, both the partition and the adjustment plate are provided with through holes that match the cable.

[0017] Compared with the prior art, the present invention provides a novel prefabricated photovoltaic substation structure, which has the following beneficial effects: 1. By setting up a primary heat dissipation mechanism, on the one hand, the cables do not need to enter from the bottom of the photovoltaic substation. The cables themselves remain inside the enclosure and are not exposed to the external environment, eliminating the possibility of the cables getting damp and corroded. On the other hand, the heat generated by the cables themselves is conducted and dissipated through the partition, which can quickly dissipate the heat of the cables and extend their service life. It should be noted that the partition is in direct contact with the inside of the enclosure, which can also conduct and dissipate the heat inside the partition at the same time, providing primary heat dissipation for the cables and the photovoltaic substation, providing good protection for the cables and effectively extending their service life.

[0018] 2. By setting up a two-stage heat dissipation mechanism, on the one hand, the airflow inside the box is accelerated, allowing hot air inside the box to be drawn out from the spindle tube, thus improving the heat dissipation effect of the photovoltaic substation. On the other hand, since the spindle tube is matched with the heat sink, the air drawn out through the spindle tube blows towards the heat sink, increasing the airflow speed around the heat sink and further improving the heat dissipation effect of the heat sink, resulting in a better heat dissipation effect for the photovoltaic substation.

[0019] This application provides good heat dissipation for cables and photovoltaic substations, and also provides good protection for cables, extending their service life. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention. Figure 2 This is a bottom-view structural diagram of the present invention; Figure 3 This is a front structural perspective view of the present invention; Figure 4 This is a schematic diagram of the primary heat dissipation mechanism in this invention; Figure 5 This is a schematic diagram of the limiting plate in this invention; Figure 6 This is a schematic diagram of the adjusting plate mechanism in this invention; Figure 7 This is a schematic diagram of the two-stage heat dissipation mechanism in this invention; Figure 8 This is a perspective view of the internal structure of the spindle tube of the present invention; Figure 9 This is a partial structural perspective view of the secondary heat dissipation mechanism in this invention.

[0021] In the diagram: 1. Base; 2. Support base; 3. Box body; 4. Box door; 5. Box top; 6. Partition; 7. Primary heat dissipation mechanism; 8. Adjusting plate; 9. Limiting plate; 10. Limiting hole; 11. Adjusting rod; 12. Adjusting groove; 13. Adjusting screw; 14. Adjusting block; 15. Transmission groove; 16. First transmission mechanism; 17. First pulley; 18. Double-acting screw; 19. Second transmission mechanism; 20. Second pulley; 21. Drive motor; 22. Heat dissipation plate; 23. Heat dissipation fin; 24. Rotary handle 25. Secondary heat dissipation mechanism; 26. Spindle tube; 27. Connecting rod; 28. Air duct; 29. ​​Ventilation opening; 30. Fixing plate; 31. Rotating rod; 32. Fan; 33. Rotating shaft; 34. First bevel gear set; 35. First bevel gear; 36. Second bevel gear; 37. Transmission box; 38. Fixing column; 39. Fan blade; 40. Transmission shaft; 41. Tail fin; 42. Second bevel gear set; 43. Third bevel gear; 44. Fourth bevel gear; 45. Third pulley; 46. Heat dissipation opening. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a novel prefabricated photovoltaic substation structure.

[0024] like Figures 1-9 As shown, a novel prefabricated photovoltaic substation structure includes a base 1, a support seat 2 installed at the lower end of the base 1, a box 3 installed at the upper end of the base 1, a box top 5 provided at the upper end of the box 3, multiple boxes 4 installed on the box 3, multiple partitions 6 installed inside the box 3, the multiple partitions 6 dividing the box 3 into three spaces, a primary heat dissipation mechanism 7 for dissipating heat from cables is provided between two adjacent partitions 6, and a secondary heat dissipation mechanism 25 for dissipating heat from the interior of the box 3 is provided inside the box 3; the lower end of the partition 6 passes through the base 1, and a heat dissipation plate 22 is fixed at the lower end of the partition 6, multiple heat dissipation fins 23 are installed at the lower end of the heat dissipation plate 22, and multiple heat dissipation vents 46 matching the heat dissipation plate 22 are provided on the support seat 2.

[0025] To dissipate heat from the cables inside the photovoltaic substation, a primary heat dissipation mechanism 7 is installed. This mechanism includes two limiting plates 9 positioned between two partition plates 6. The distance between the partition plates 6 and the limiting plates 9 is approximately equal to the outer diameter of the cable. The two limiting plates 9 are fixed to the inner wall of the enclosure 3. An adjusting plate 8 is located between the two limiting plates 9. Both the partition plates 6 and the adjusting plate 8 have through holes matching the cable. The adjusting plate 8 is slidably connected to the inner wall of the enclosure 3. Two bidirectional screws 18 are rotatably mounted between the two limiting plates 9, and are connected by a second transmission mechanism. 19. Further, the second transmission mechanism 19 includes two second pulleys 20, each coaxially mounted with two bidirectional screws 18. The two second pulleys 20 are connected by a synchronous belt. A drive motor 21 is mounted on the partition 6. The drive shaft of the drive motor 21 rotates through the drive motor 21 and the limiting plate 9 and is fixed to the bidirectional screws 18. Both bidirectional screws 18 are threaded through two adjusting plates 8. Multiple adjusting rods 11 are mounted on opposite sides of the two adjusting plates 8. The adjusting plates 8 have a moving mechanism for moving the adjusting rods 11. It should be noted that... The moving mechanism includes multiple adjusting slots 12 on the adjusting plate 8. Adjusting screws 13 are rotatably installed in the adjusting slots 12. Notably, the external threads of two adjacent adjusting screws 13 on the same adjusting plate 8 have opposite directions. Adjusting blocks 14 are fitted onto the external threads of the adjusting screws 13. The adjusting blocks 14 are slidably installed against the inner wall of the adjusting slots 12. Multiple adjusting rods 11 are rotatably connected to multiple adjusting blocks 14. The adjusting plate 8 is provided with a transmission groove 15. Multiple adjusting screws 13 rotatably pass through the adjusting plate 8 and extend into the transmission groove 15. Adjacent adjusting screws 13 are connected by a first transmission mechanism 16. Regarding the transmission connection, it is worth mentioning that the first transmission mechanism 16 includes two first pulleys 17, which are coaxially mounted with two adjusting screws 13 respectively. The two first pulleys 17 are connected by a synchronous belt. The adjusting screws 13 located on the uppermost side of the two adjusting plates 8 are coaxially mounted with third pulleys 45. The two third pulleys 45 are connected by a synchronous belt. The adjusting plate 8 is provided with through holes that match the synchronous belt. One end of one adjusting screw 13 rotates through the adjusting plate 8 and the housing 3 and is fixed with a handle 24. The limiting plate 9 is provided with limiting holes 10 that match the adjusting rod 11.

[0026] Through the aforementioned technical features: the cable is inserted through the through hole between the partition 6 and the limiting plate 9. The drive shaft of the drive motor 21 rotates the bidirectional screw 18, causing the two adjusting plates 8 to move relative to each other. The adjusting plates 8 then move the adjusting rod 11 until the adjusting rod 11 limits the cable. At this point, rotating the handle 24 causes one of the adjusting screws 13 to rotate, which in turn causes the other adjusting screws 13 to rotate. The adjusting screws 13 then move the adjusting blocks 14. Due to the different rotation directions of the adjusting screws 13, the multiple adjusting blocks 14 move in opposite directions, causing the adjusting rod 11 to move. As the adjusting rod 11 moves, it drives... When the cable is bent and folded, the contact area between the cable and the partition 6 increases. The heat generated by the cable is conducted through the partition 6 to the heat sink 23 below, which dissipates heat from the cable. On the one hand, the cable does not need to enter from the bottom of the photovoltaic substation; the cable itself remains inside the enclosure 3 and is not exposed to the external environment, eliminating the possibility of the cable getting damp and corroded. On the other hand, the heat generated by the cable itself is conducted away through the partition 6, which can quickly dissipate the heat from the cable and extend its service life. It should be noted that the partition 6 is in direct contact with the inside of the enclosure 3, which can also conduct heat away from the inside of the partition 6, providing primary heat dissipation for the cable and the photovoltaic substation.

[0027] To dissipate heat inside the photovoltaic substation, a secondary heat dissipation mechanism 25 is installed. The secondary heat dissipation mechanism 25 includes a spindle tube 26 located below the base 1. It should be noted that the spindle tube 26 is matched with the heat sink 23. The spindle tube 26 is fixed to the base 1 via a connecting rod 27. A vent 29 is installed on the partition 6, and the vent 29 is connected to the spindle tube 26 via a duct 28. A rotating rod 31 is installed inside the spindle tube 26, and two fixing plates 30 are rotatably sleeved around the rotating rod 31. The fixed plate 30 is fixed to the inner wall of the spindle tube 26. Fans 32 are installed at both ends of the rotating rod 31. A rotating shaft 33 is provided inside the spindle tube 26. The rotating shaft 33 and the rotating rod 31 are connected by a first bevel gear set 34. It should be noted that the first bevel gear set 34 includes a first bevel gear 35 and a second bevel gear 36 that mesh with each other. The first bevel gear 35 is coaxially mounted with the rotating shaft 33, and the second bevel gear 36 is coaxially mounted with the rotating rod 31. The upper end of the rotating shaft 33 passes through the spindle tube 26 and the base 1 in sequence. The top of the housing 5 is fitted with a fixed post 38 that is rotatably sleeved around the rotating shaft 33. The fixed post 38 is fixed to the top of the housing 5. A transmission box 37 is rotatably mounted on the upper end of the fixed post 38. The upper end of the rotating shaft 33 passes through the transmission box 37. A transmission shaft 40 is rotatably mounted inside the transmission box 37. The transmission shaft 40 and the rotating shaft 33 are connected by a second bevel gear set 42. It should be noted that the second bevel gear set 42 includes a third bevel gear 43 and a fourth bevel gear 44 that mesh with each other. The third bevel gear 43 and the transmission shaft 44 are connected by a second bevel gear set 42. Shaft 40 is coaxially mounted, fourth bevel gear 44 is coaxially mounted with shaft 33, one end of fixed plate 30 rotates through drive shaft 40 and is equipped with fan blade 39, and a tail fin 41 is provided outside the drive box 37. It should be noted that the tail fin 41 has a large area. When blown by the wind, it will drive the drive box 37 to rotate, so that the tail fin 41 is parallel to the wind direction. At this time, the fan blade 39 will be perpendicular to the wind direction. The tail fin 41 and the fan blade 39 are distributed on opposite sides of the drive box 37, and the tail fin 41 is fixed to the drive box 37.

[0028] Through the above technical features: the external natural wind drives the fan blades 39 to rotate, the fan blades 39 drive the drive shaft 40 to rotate, the drive shaft 40 drives the rotating shaft 33 to rotate, the rotating shaft 33 drives the rotating rod 31 to rotate, the rotating rod 31 drives the fan 32 to rotate, and the fan 32 draws air out of the housing 3 through the air duct 28 and the ventilation port 29. On the one hand, it accelerates the air flow inside the housing 3, so that the hot air inside the housing 3 can be drawn out from the spindle tube 26, improving the heat dissipation effect of the photovoltaic substation. On the other hand, since the spindle tube 26 is matched with the heat sink 23, the air drawn out through the spindle tube 26 blows towards the heat sink 23, which increases the air flow speed around the heat sink 23, further improving the heat dissipation effect of the heat sink 23, resulting in a better heat dissipation effect for the photovoltaic substation.

[0029] Working principle: 1) Cable heat dissipation: The cable is passed through the through hole between the partition 6 and the limiting plate 9. The drive shaft of the drive motor 21 rotates the bidirectional screw 18, which drives the two adjusting plates 8 to move relative to each other. The adjusting plates 8 drive the adjusting rod 11 to move until the adjusting rod 11 limits the cable. At this time, by rotating the handle 24, the handle 24 drives one of the adjusting screws 13 to rotate. One of the adjusting screws 13 drives the other adjusting screws 13 to rotate. The adjusting screws 13 drive the adjusting blocks 14 to move. Since the adjusting screws 13 rotate in different directions, the multiple adjusting blocks 14 are staggered and face opposite directions. As the direction moves, the adjusting block 14 drives the adjusting rod 11 to move. When the adjusting rod 11 moves, it causes the cable to bend and fold. At this time, the contact area between the cable and the partition 6 increases. The heat generated by the cable is conducted through the partition 6 to the heat sink 23 below. The heat sink 23 dissipates heat from the cable. On the one hand, the cable does not need to enter from the bottom of the photovoltaic substation. The cable itself is still placed inside the box 3 and does not need to be exposed to the external environment, eliminating the possibility of the cable getting damp and corroded. On the other hand, the heat generated by the cable itself can be dissipated quickly by conducting heat through the partition 6. 2) Heat dissipation inside the photovoltaic substation: The external natural wind drives the fan blades 39 to rotate, which in turn drives the drive shaft 40 to rotate. The drive shaft 40 drives the rotating shaft 33 to rotate, which in turn drives the rotating rod 31 to rotate. The rotating rod 31 drives the fan 32 to rotate. The fan 32 draws air out of the housing 3 through the air duct 28 and the ventilation port 29. On the one hand, this accelerates the airflow inside the housing 3, allowing hot air inside the housing 3 to be drawn out through the spindle tube 26, thus improving the heat dissipation effect of the photovoltaic substation. On the other hand, since the spindle tube 26 is matched with the heat sink 23, the air drawn out through the spindle tube 26 is blown towards the heat sink 23, which increases the airflow speed around the heat sink 23, further improving the heat dissipation effect of the heat sink 23.

[0030] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0031] The detailed descriptions listed above are merely specific descriptions of feasible implementation methods of this application and are not intended to limit the scope of protection of this application. All equivalent implementation methods or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this invention.

Claims

1. A novel prefabricated photovoltaic substation structure, characterized in that, Includes a base (1), a support seat (2) is installed at the lower end of the base (1), a box (3) is installed at the upper end of the base (1), a box top (5) is provided at the upper end of the box (3), multiple boxes (4) are installed on the box (3), multiple partitions (6) are installed inside the box (3), the multiple partitions (6) divide the box (3) into three spaces, a primary heat dissipation mechanism (7) for heat dissipation of cables is provided between two adjacent partitions (6), and a secondary heat dissipation mechanism (25) for heat dissipation of the inside of the box (3) is provided inside the box (3). The lower end of the partition (6) is provided through the base (1), and a heat sink (22) is fixed at the lower end of the partition (6). Multiple heat sinks (23) are installed at the lower end of the heat sink (22), and multiple heat dissipation ports (46) matching the heat sink (22) are provided on the support base (2).

2. The novel prefabricated photovoltaic substation structure according to claim 1, characterized in that: The primary heat dissipation mechanism (7) includes two limiting plates (9) disposed between two partition plates (6). The two limiting plates (9) are fixed to the inner wall of the housing (3). An adjusting plate (8) is provided between the two limiting plates (9). The adjusting plate (8) is slidably connected to the inner wall of the housing (3). Two bidirectional screws (18) are rotatably installed between the two limiting plates (9). The two bidirectional screws (18) are connected by a second transmission mechanism (19). A drive motor is installed on the partition plate (6). The drive shaft of the drive motor (21) rotates through the drive motor (21) and the limiting plate (9) and is fixed with the bidirectional screw (18). Both bidirectional screws (18) are threaded through the two adjusting plates (8). Multiple adjusting rods (11) are installed on the opposite side of the two adjusting plates (8). The adjusting plate (8) is provided with a moving mechanism for moving the adjusting rods (11). The limiting plate (9) is provided with a limiting hole (10) that matches the adjusting rod (11).

3. The novel prefabricated photovoltaic substation structure according to claim 2, characterized in that: The second transmission mechanism (19) includes two second pulleys (20), which are coaxially mounted with two bidirectional screws (18) respectively, and are connected by a synchronous belt drive.

4. The novel prefabricated photovoltaic substation structure according to claim 2, characterized in that: The moving mechanism includes multiple adjusting slots (12) on the adjusting plate (8). Adjusting screws (13) are rotatably installed in the adjusting slots (12). Adjusting blocks (14) are threaded onto the external threads of the adjusting screws (13). The adjusting blocks (14) are slidably installed on the inner wall of the adjusting slots (12). Multiple adjusting rods (11) are rotatably connected to multiple adjusting blocks (14). The adjusting plate (8) is provided with a transmission groove (15). Multiple adjusting screws (13) rotatably penetrate the adjusting plate (8) and extend... Extending into the transmission groove (15), the two adjacent adjusting screws (13) are connected by a first transmission mechanism (16). The adjusting screws (13) located on the uppermost side of the two adjusting plates (8) are coaxially mounted with third pulleys (45). The two third pulleys (45) are connected by a synchronous belt. The adjusting plate (8) is provided with through holes that match the synchronous belt. One end of one of the adjusting screws (13) rotates through the adjusting plate (8) and the housing (3) and is fixed with a handle (24).

5. The novel prefabricated photovoltaic substation structure according to claim 4, characterized in that: The first transmission mechanism (16) includes two first pulleys (17), which are coaxially mounted with two adjusting screws (13) respectively, and are connected by a synchronous belt drive.

6. The novel prefabricated photovoltaic substation structure according to claim 1, characterized in that: The secondary heat dissipation mechanism (25) includes a spindle tube (26) located below the base (1). The spindle tube (26) is fixed to the base (1) via a connecting rod (27). A vent (29) is installed on the partition plate (6). The vent (29) and the spindle tube (26) are connected via a duct (28). A rotating rod (31) is provided inside the spindle tube (26). Two fixing plates (30) are rotatably sleeved on the outside of the rotating rod (31). The fixing plates (30) are fixed to the inner wall of the spindle tube (26). Fans (32) are installed at both ends of the rotating rod (31). A rotating shaft (33) is provided inside the spindle tube (26). The rotating shaft (33) and the rotating rod (31) are connected by a first bevel gear set (34). The upper end of the rotating shaft (33) passes through the spindle tube in sequence. (26) A base (1) and a box top (5) are provided. A fixed column (38) is rotatably sleeved on the outside of the rotating shaft (33). The fixed column (38) is fixed to the box top (5). A transmission box (37) is rotatably installed on the upper end of the fixed column (38). The upper end of the rotating shaft (33) passes through the transmission box (37). A transmission shaft (40) is rotatably installed inside the transmission box (37). The transmission shaft (40) and the rotating shaft (33) are connected by a second bevel gear set (42). One end of the fixed plate (30) rotatably passes through the transmission shaft (40) and is equipped with a wind turbine blade (39). A tail fin (41) is provided on the outside of the transmission box (37). The tail fin (41) and the wind turbine blade (39) are distributed on the opposite side of the transmission box (37). The tail fin (41) is fixed to the transmission box (37).

7. The novel prefabricated photovoltaic substation structure according to claim 6, characterized in that: The first bevel gear set (34) includes a first bevel gear (35) and a second bevel gear (36) that mesh with each other. The first bevel gear (35) is coaxially mounted with the rotating shaft (33), and the second bevel gear (36) is coaxially mounted with the rotating rod (31).

8. The novel prefabricated photovoltaic substation structure according to claim 6, characterized in that: The second bevel gear set (42) includes a third bevel gear (43) and a fourth bevel gear (44) that mesh with each other. The third bevel gear (43) is coaxially mounted with the transmission shaft (40), and the fourth bevel gear (44) is coaxially mounted with the rotating shaft (33).

9. The novel prefabricated photovoltaic substation structure according to claim 4, characterized in that: The external threads of two adjacent adjusting screws (13) located on the same adjusting plate (8) have opposite directions.

10. A novel prefabricated photovoltaic substation structure according to claim 2, characterized in that: Both the partition (6) and the adjustment plate (8) are provided with through holes that match the cable.

Citation Information

Patent Citations

  • High-efficiency heat radiation structure and method for photovoltaic power generation prefabricated substation

    CN107069512A