Intelligent new energy box-type substation

Abstract

The invention relates to the technical field of transformer substations, in particular to an intelligent new energy box-type transformer substation which comprises a power transformation cabinet, an upper cover with an inclined surface is fixedly connected to the top of the power transformation cabinet, a storage groove is formed in the upper surface of the upper cover, lifting mechanisms are installed on the tops of the left side and the right side of the power transformation cabinet correspondingly, and a base plate is installed on the tops of the lifting mechanisms; the base plate is driven by the lifting mechanism to ascend or descend, sliding ways are transversely formed in the front side and the rear side of the lower surface of the base plate, a photovoltaic panel is installed on the upper surface of the base plate, light energy is converted into electric energy through the photovoltaic panel, and a heat dissipation mechanism is installed on the lower surface of the base plate. The temperature of the photovoltaic panel is dynamically adjusted, so that the temperature of the photovoltaic panel can be always kept in an interval beneficial to efficient conversion, the generating capacity is maximized, the good air permeability of the power transformation cabinet is ensured, insects and dust can be prevented from entering the cabinet, and potential safety hazards such as overheating and short circuit caused by the fact that the insects disturb power transmission or dust accumulation are avoided.

Description

Technical Field

[0001] This invention relates to the field of substation technology, and in particular to an intelligent new energy prefabricated substation. Background Technology

[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor or outdoor power distribution device that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment according to a specific wiring scheme. It organically combines transformer voltage reduction and low-voltage power distribution functions, making it particularly suitable for urban power grid construction and renovation. It is a new type of substation that has emerged after civil engineering substations.

[0003] To make full use of prefabricated substations and reduce energy consumption, new energy substations have emerged on the market. These substations have photovoltaic panels installed on top, which convert solar energy into electrical energy to reduce the energy consumption of the substation during operation.

[0004] However, the energy conversion efficiency of photovoltaic (PV) panels is not only related to sunlight intensity but also affected by surface temperature. Currently, PV panels are mostly fixedly installed on top of substation cabinets. In the hot summer, poor heat dissipation of PV panels easily leads to excessive surface temperatures. In the cold winter, PV panels cannot effectively exchange heat with the substation cabinet, making it difficult to raise their temperature. This results in a low energy conversion efficiency of the PV panels, making it difficult to meet the power requirements of the substation cabinet. In addition, the vents of substation cabinets are usually set to be large, which can prevent dust blockage, but also allows insects to enter. Insects inhabiting the substation cabinet can affect heat dissipation and may even cause short circuits. Summary of the Invention

[0005] In order to overcome the shortcomings of existing technologies, such as the inability to adjust the power generation of photovoltaic panels according to ambient temperature and the difficulty in preventing insects from entering the substation under good heat dissipation conditions, the present invention aims to solve the technical problem of an intelligent new energy box-type substation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent new energy box-type substation, comprising a substation cabinet, a top cover with an inclined surface fixedly connected to the top of the substation cabinet, a storage groove formed on the upper surface of the top cover, lifting mechanisms installed on the top of both the left and right sides of the substation cabinet, a base plate installed on the top of the lifting mechanism, the base plate being raised or lowered under the drive of the lifting mechanism, slide rails being formed on both the front and rear sides of the lower surface of the base plate, a photovoltaic panel installed on the upper surface of the base plate, the photovoltaic panel converting light energy into electrical energy, a heat dissipation mechanism installed on the lower surface of the base plate, the heat dissipation mechanism expanding the heat dissipation area of ​​the photovoltaic panel, allowing the photovoltaic panel to be cooled, and grilles being provided at the heat dissipation vents on both the left and right sides of the substation cabinet, the grilles being used to prevent dust, insects and other small organisms from entering the substation cabinet.

[0007] Preferably, the lower surface of the substrate is parallel to the upper surface of the upper cover.

[0008] Preferably, the purpose is to adjust the height of the photovoltaic panel according to the ambient temperature, so that the surface temperature of the photovoltaic panel can convert electrical energy at the maximum conversion rate. The lifting mechanism includes a frame installed on the side wall of the substation cabinet. A motor is installed on the front of the frame. One end of the lead screw is installed at the output end of the motor. The other end of the lead screw is connected to the rear side of the inner cavity of the frame through a bearing. Lead screw nuts are screwed to both the front and rear sides of the outer wall of the lead screw. One end of the first connecting rod is installed on the top of the lead screw nut through a pin. The other end of the first connecting rod is installed with a support plate through a pin. The support plate is installed on the side wall of the base plate. When the bottoms of the two first connecting rods gradually approach or move away, the base plate is dragged up or down. Cleaning components are installed on both the front and rear sides of the lower surface of the frame.

[0009] Preferably, the threads on the front and rear sides of the lead screw are in opposite directions.

[0010] Preferably, the purpose is to use the movement of the lead screw nut as power to make the roller brush roll along the grid to clean the grid. The cleaning component includes a base installed at the bottom of the frame. The base is U-shaped. A rack is installed on the left inner wall of the base along the front-back direction. Two slide rods are installed on the inner side of the base. A slide seat that can slide linearly is sleeved on the outer wall of the slide rod. A rotatable shaft is installed at the center of the slide seat through a bearing. The shaft is inserted into the center of the lead screw nut. The lead screw nut drags the shaft to move. A spur gear that meshes with the rack is installed on the top of the outer wall of the shaft. A roller brush is installed at the bottom of the shaft. The roller brush cleans the impurities on the grid surface by rolling.

[0011] Preferably, the base is located directly above the grille.

[0012] Preferably, the purpose is to change the spacing between the heat sinks, adjust the heat dissipation area of ​​the substrate, and achieve temperature control of the photovoltaic panel. The heat dissipation mechanism includes sliders slidably connected to the left and right sides of the inner cavity of the slide. A traction rod is installed at the bottom of the slider along the front-back direction. One end of a second connecting rod is sleeved at the center of the outer wall of the traction rod. The other end of the second connecting rod is connected to the outer edge of the upper cover by a pin. Supporting connecting rods are installed laterally on the front and back sides of the traction rod by pins. Several heat sinks are installed on the inner side of the supporting connecting rod from left to right by pins, and the heat sinks are in contact with the substrate.

[0013] Preferably, the height of the heat sink is the same as the depth of the storage slot.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the transmission action of the lead screw and lead screw nut, the first connecting rod is driven to move closer or further apart, realizing the raising or lowering of the substrate. When the substrate rises, the second connecting rod pulls the traction rod to move outward, causing the support connecting rod to move the heat sink, increasing the spacing between the heat sinks and expanding the heat dissipation area, which can effectively cool the photovoltaic panel when the ambient temperature is high. When the substrate falls, the second connecting rod squeezes the traction rod to move inward, and the support connecting rod shortens, causing the heat sink to gather and be stored in the storage slot. At this time, the top cover contacts the substrate, and the transformer cabinet and the substrate raise the temperature of the photovoltaic panel through heat exchange. Through this linkage adjustment, the temperature of the photovoltaic panel can be dynamically adjusted to keep the temperature of the photovoltaic panel in a range conducive to high-efficiency conversion, thereby maximizing power generation.

[0015] 2. The traction force of the screw nut when it moves drives the rotating shaft to move. With the meshing transmission of the spur gear and rack, the rotating shaft drives the roller brush to rotate, which can effectively clean the grid on the substation cabinet. This ensures good ventilation of the substation cabinet and prevents insects and dust from entering the cabinet, avoiding safety hazards such as overheating and short circuits caused by insects disturbing power transmission or dust accumulation. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the lifting mechanism. Figure 4 This is a schematic diagram of the cleaning component structure; Figure 5 This is a schematic diagram of the heat dissipation mechanism. Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0017] In the diagram: 1. Substation cabinet; 2. Top cover; 3. Storage slot; 4. Lifting mechanism; 5. Base plate; 6. Slide rail; 7. Photovoltaic panel; 8. Heat dissipation mechanism; 9. Grille; 41. Frame; 42. Motor; 43. Lead screw; 44. Lead screw nut; 45. First connecting rod; 46. Support plate; 47. Cleaning component; 471. Base; 472. Rack; 473. Slide rod; 474. Slide seat; 475. Rotating shaft; 476. Spur gear; 477. Roller brush; 81. Slider; 82. Traction rod; 83. Second connecting rod; 84. Support connecting rod; 85. Heat sink. Detailed Implementation

[0018] 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.

[0019] This invention provides a technical solution: an intelligent new energy prefabricated substation, such as... Figure 1-6 As shown, the system includes a transformer cabinet 1. A top cover 2 with an inclined surface is fixedly connected to the top of the transformer cabinet 1. The top cover 2 is made of aluminum alloy with excellent thermal conductivity, improving the heat dissipation performance of the transformer cabinet 1. A storage groove 3 is provided on the upper surface of the top cover 2. Lifting mechanisms 4 are installed on the top of both the left and right sides of the transformer cabinet 1. A base plate 5 is installed on the top of the lifting mechanism 4, allowing the base plate 5 to rise or fall under the drive of the lifting mechanism 4. Slide tracks 6 are provided laterally on the front and rear sides of the lower surface of the base plate 5. A photovoltaic panel 7 is installed on the upper surface of the base plate 5. The lower surface of the base plate 5 is parallel to the upper surface of the top cover 2, allowing the photovoltaic panel 7 to tilt towards the sun, increasing the duration of sunlight exposure and increasing power generation. The photovoltaic panel 7 converts light energy into electrical energy. A heat dissipation mechanism 8 is installed on the lower surface of the base plate 5. The storage groove 3 is used to store heat dissipation mechanism 8. The heat dissipation mechanism 8 expands the heat dissipation area of ​​the photovoltaic panel 7, allowing the photovoltaic panel 7 to be cooled. Grilles 9 are provided on the heat dissipation vents on both the left and right sides of the transformer cabinet 1. The grilles 9 are used to prevent dust, insects, and other small organisms from entering the transformer cabinet 1.

[0020] As a preferred embodiment, the lifting mechanism 4 further includes a frame 41 installed on the side wall of the transformer cabinet 1. A motor 42 is installed on the front of the frame 41. One end of a lead screw 43 is installed at the output end of the motor 42. The other end of the lead screw 43 is connected to the rear side of the inner cavity of the frame 41 through a bearing. The threads on the front and rear sides of the lead screw 43 are opposite in direction. The motor 42 drives the lead screw 43 to rotate clockwise or counterclockwise, so that the rotational force of the threads of the lead screw 43 drives two lead screw nuts 44 to move inward or outward simultaneously. Lead screw nuts 44 are screwed onto the front and rear sides of the outer wall of the lead screw 43. One end of a first connecting rod 45 is installed on the top of the lead screw nut 44 through a pin. The other end of the first connecting rod 45 is installed with a support plate 46 through a pin. The support plate 46 is installed on the side wall of the base plate 5. When the bottoms of the two first connecting rods 45 gradually approach or move away, the base plate 5 is dragged up or down. Cleaning components 47 are installed on the front and rear sides of the lower surface of the frame 41.

[0021] As a preferred embodiment, the cleaning component 47 further includes a base 471 mounted at the bottom of the frame 41. The base 471 is U-shaped, and a rack 472 is mounted on the left inner wall of the base 471 along the front-rear direction. Two slide rods 473 are mounted on the inner side of the base 471, and a slide seat 474 capable of linear sliding is sleeved on the outer wall of the slide rods 473. The slide rods 473 and the slide seat 474 are slidably connected to limit the lead screw nut 44 and prevent the lead screw nut 44 from rotating. A rotatable shaft 475 is mounted at the center of the slide seat 474 via a bearing. 75 is inserted into the center of the lead screw nut 44, and the lead screw nut 44 drives the rotating shaft 475 to move. The top of the outer wall of the rotating shaft 475 is equipped with a spur gear 476 that meshes with the rack 472. When the slide 474 moves, the spur gear 476 can pull the roller brush 477 to rotate while the rack 472 is stationary. The roller brush 477 is installed at the bottom of the rotating shaft 475. The roller brush 477 cleans the impurities on the surface of the grid 9 by rolling. The base 471 is located directly above the grid 9 so that the roller brush 477 passes over the grid 9 when it moves, avoiding any omissions in the cleaning of the grid 9.

[0022] More specifically, when the lead screw nut 44 moves axially along the lead screw 43, the rotating shaft 475 at its center is synchronously dragged, thereby driving the slide block 474 sleeved on the slide rod 473 to move linearly along the slide rod 473. The slide rod 473 guides and limits the slide block 474, preventing it from rotating with the lead screw 43. When the slide block 474 moves, the spur gear 476 at the top of the rotating shaft 475 remains engaged with the rack 472 fixed to the inner wall of the base 471. Since the rack 472 remains stationary, the spur gear 476, as it moves with the slide 474, is pushed by the tooth surface of the rack 472, generating a rotational motion around the axis of the rotating shaft 475. This, in turn, drives the entire rotating shaft 475 and the bottom roller brush 477 to rotate synchronously. While rotating, the roller brush 477 moves in a straight line along the surface of the grille 9 with the slide 474. Because the base 471 is located directly above the grille 9, the movement trajectory of the roller brush 477 completely covers the grille 9. Its bristles are in close contact with the surface of the grille 9, removing dust, insect corpses, and other impurities attached to the grille 9 through rolling friction. This ensures that the ventilation gaps of the grille 9 are not blocked, maintaining the heat dissipation efficiency of the substation 1 and preventing safety hazards caused by impurities entering the cabinet. The linkage design of the lifting mechanism 4 and the cleaning component 47 realizes the synchronous operation of "base plate height adjustment" and "automatic grille cleaning" without the need for an additional power source, improving the integration and operating efficiency of the equipment.

[0023] As a preferred embodiment, the heat dissipation mechanism 8 further includes sliders 81 slidably connected to the left and right sides of the inner cavity of the slide rail 6. A traction rod 82 is installed at the bottom of the slider 81 along the front-back direction. One end of a second connecting rod 83 is sleeved at the center of the outer wall of the traction rod 82. The other end of the second connecting rod 83 is connected to the outer edge of the upper cover 2 by a pin. Supporting connecting rods 84 are installed laterally on the front and back sides of the traction rod 82 by pins. Several heat sinks 85 are installed on the inner side of the supporting connecting rods 84 from left to right by pins. The heat sinks 85 are in contact with the substrate 5. When the supporting connecting rods 84 extend or shorten, they can pull the heat sinks 85 to diffuse or gather. Diffusion increases the heat dissipation area of ​​the substrate 5, while gathering reduces heat loss and allows the substrate 5 to exchange heat with the upper cover 2. The heat sinks 85 are made of aluminum alloy. The height of the heat sinks 85 is the same as the depth of the receiving groove 3. When the heat sinks 85 enter the receiving groove 3, the substrate 5 can contact the upper cover 2, increasing the heat exchange area.

[0024] More specifically, when the substrate 5 rises under the drive of the lifting mechanism 4, the substrate 5 drives the slider 81 to move upward. The second connecting rod 83 rotates outward under the pulling force of the substrate 5, thereby pulling the traction rod 82 to move away from the center of the substrate 5. When the traction rod 82 moves, it drives the support connecting rod 84 to extend, causing several heat sinks 85 to spread to the left and right sides, increasing the distance between adjacent heat sinks 85, thereby expanding the heat dissipation area, accelerating the heat dissipation of the photovoltaic panel 7, and achieving a cooling effect. When the substrate 5 falls, the second connecting rod 83 rotates inward under the pressure of the substrate 5, pushing the traction rod 82 to move closer to the center of the substrate 5. When the traction rod 82 moves, it drives the support connecting rod 84 to shorten, causing several heat sinks 85 to converge towards the center and finally be stored in the storage groove 3. At this time, the lower surface of the substrate 5 contacts the upper surface of the upper cover 2, and the heat generated by the operation of the transformer cabinet 1 can be transferred to the substrate 5 through the upper cover 2, realizing the heating of the photovoltaic panel 7 and reducing heat loss.

[0025] Working principle: Step 1: The photovoltaic panel 7 absorbs solar energy and converts light energy into electrical energy to provide the substation 1 with its own operating power, reducing energy consumption. The grille 9 has small air holes to prevent insects and dust from entering. Step 2: Adjust the position of the photovoltaic panel 7 according to the change of the external ambient temperature. Drive the lead screw 43 to rotate clockwise or counterclockwise through the motor 42. The rotation force of the lead screw 43 drives the two lead screw nuts 44 to move inward or outward at the same time. The bottom of the first connecting rod 45 moves closer or further away, so that the substrate 5 rises or falls. Step 3: When the substrate 5 rises, under the restriction of the second link 83, the slider 81 slides outward along the slide rail 6, the distance between the two traction rods 82 increases, the support link 84 becomes longer, the heat sink 85 gradually separates, the heat sink 85 expands the heat dissipation area of ​​the photovoltaic panel 7, and the photovoltaic panel 7 is cooled down. When the substrate 5 descends, the second connecting rod 83 presses the slider 81 inward, the distance between the traction rods 82 becomes smaller, the support connecting rod 84 becomes shorter, the heat sink 85 converges towards the center, and finally enters the storage groove 3. Moreover, the substrate 5 contacts the top cover 2, and the heat generated when the substation 1 is working reaches the substrate 5 through heat conduction, raising the temperature of the photovoltaic panel 7. Therefore, the temperature of the photovoltaic panel 7 can be adjusted according to changes in the external ambient temperature, so that the photovoltaic panel 7 can operate at the highest conversion rate. Step four: As the lead screw nut 44 moves, the lead screw nut 44 causes the slide block 474 to move along the slide rod 473 via the traction shaft 475. Since the rack 472 is stationary, as the slide block 474 moves, the roller brush 477 rotates under the transmission conditions of the rack 472 and the spur gear 476. When the roller brush 477 passes through the grid 9, it removes impurities from the surface of the grid 9, allowing the substation 1 to have a good heat dissipation effect.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent new energy prefabricated substation, comprising a transformer cabinet (1), characterized in that, The top of the substation (1) is fixedly connected to a top cover (2) with an inclined surface. The top surface of the top cover (2) is provided with a storage groove (3). The top of the left and right sides of the substation (1) are equipped with lifting mechanisms (4). The top of the lifting mechanism (4) is equipped with a base plate (5). The base plate (5) is raised or lowered under the drive of the lifting mechanism (4). The bottom surface of the base plate (5) is provided with slide rails (6) on both the front and rear sides. The top surface of the base plate (5) is equipped with a photovoltaic panel (7). The photovoltaic panel (7) converts light energy into electrical energy. The bottom surface of the base plate (5) is equipped with a heat dissipation mechanism (8). The heat dissipation mechanism (8) expands the heat dissipation area of ​​the photovoltaic panel (7) and cools the photovoltaic panel (7). The heat dissipation vents on the left and right sides of the substation (1) are provided with grilles (9). The grilles (9) are used to block dust, insects and other small organisms from entering the substation (1).

2. The intelligent new energy prefabricated substation according to claim 1, characterized in that, The lower surface of the substrate (5) is parallel to the upper surface of the cover (2).

3. The intelligent new energy prefabricated substation according to claim 2, characterized in that, The lifting mechanism (4) includes a frame (41) installed on the side wall of the transformer cabinet (1). A motor (42) is installed on the front of the frame (41). A lead screw (43) is installed at the output end of the motor (42). The other end of the lead screw (43) is connected to the rear side of the inner cavity of the frame (41) through a bearing. Lead screw nuts (44) are screwed on both the front and rear sides of the outer wall of the lead screw (43). A first connecting rod (45) is installed on the top of the lead screw nut (44) through a pin. A support plate (46) is installed on the other end of the first connecting rod (45) through a pin. The support plate (46) is installed on the side wall of the base plate (5). When the bottoms of the two first connecting rods (45) gradually approach or move away, the base plate (5) is dragged up or down. Cleaning components (47) are installed on both the front and rear sides of the lower surface of the frame (41).

4. The intelligent new energy prefabricated substation according to claim 3, characterized in that, The screw (43) has opposite thread directions on the front and rear sides.

5. The intelligent new energy prefabricated substation according to claim 4, characterized in that, The cleaning component (47) includes a base (471) installed at the bottom of the frame (41). The base (471) is U-shaped. A rack (472) is installed on the left inner wall of the base (471) along the front-back direction. Two slide rods (473) are installed on the inner side of the base (471). A slide seat (474) that can slide linearly is sleeved on the outer wall of the slide rod (473). A rotating shaft (475) that can rotate is installed at the center of the slide seat (474) through a bearing. The rotating shaft (475) is inserted into the center of the screw nut (44). The rotating shaft (475) is moved by the screw nut (44). A spur gear (476) that meshes with the rack (472) is installed on the top of the outer wall of the rotating shaft (475). A roller brush (477) is installed at the bottom of the rotating shaft (475). The roller brush (477) is used to clean the impurities on the surface of the grille (9).

6. The intelligent new energy prefabricated substation according to claim 5, characterized in that, The base (471) is located directly above the grille (9).

7. The intelligent new energy prefabricated substation according to claim 6, characterized in that, The heat dissipation mechanism (8) includes a slider (81) slidably connected to the left and right sides of the inner cavity of the slide (6). A traction rod (82) is installed at the bottom of the slider (81) along the front-back direction. A second connecting rod (83) is sleeved at the center of the outer wall of the traction rod (82). The other end of the second connecting rod (83) is connected to the outer edge of the upper cover (2) by a pin. Supporting connecting rods (84) are installed laterally on the front and back sides of the traction rod (82) by pins. Several heat sinks (85) are installed on the inner side of the supporting connecting rods (84) from left to right by pins, and the heat sinks (85) are in contact with the substrate (5).

8. The intelligent new energy prefabricated substation according to claim 7, characterized in that, The height of the heat sink (85) is the same as the depth of the storage slot (3).

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