Photovoltaic inverter air duct structure

Abstract

The utility model provides a kind of photovoltaic inverter air duct structure, is installed on photovoltaic inverter, the side of inverter is provided with air inlet, including air duct board, angle steel, steel frame and dustproof cotton, the air duct board is enclosed and fixed at air inlet, so that the air inlet passage formed by air duct board is set to downward, the angle steel is provided with two and is fixed on the outer wall of inverter and the inner wall of air duct board respectively, one side of the steel frame is hinged on the angle steel of air duct board, the other side of steel frame is connected by bolt thread on the angle steel of inverter, steel wire net is fixedly connected on the steel frame, the dustproof cotton is fixed on steel wire net. By being designed into downward direction to air duct board, the influence of dust in wind to air inlet can be effectively reduced, simultaneously utilize the combination of angle steel, steel frame and steel wire net and dustproof cotton, both ensure air circulation, and improve dustproof performance.

Description

Technical Field

[0001] This utility model relates to the technical field of inverter auxiliary components, and in particular to a photovoltaic inverter air duct structure. Background Technology

[0002] In photovoltaic (PV) power generation systems, the PV inverter is a crucial device that converts the direct current (DC) generated by solar cells into alternating current (AC). Good heat dissipation is essential to ensure the proper functioning of the internal electronic components. However, in areas with high wind and sand, the traditional PV inverter's air inlet and outlet are often parallel to the wind direction. This allows dust carried by the wind to easily enter the inverter or clog the air inlet filter, hindering cooling air circulation and potentially causing electronic components to overheat and malfunction or even shut down. Currently, to prevent dust ingress, flat louvers are commonly used as a protective device, fixed to the inverter's air inlet with screws. However, this design is time-consuming to disassemble and clean, requiring approximately 45 minutes per unit. This not only increases maintenance costs but also reduces system availability. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a photovoltaic inverter duct structure. To achieve the above objectives, this utility model adopts the following technical solution:

[0004] A photovoltaic inverter air duct structure is installed on a photovoltaic inverter. An air inlet is provided on the side of the inverter. The structure includes an air duct plate, angle steel, a steel frame, and dustproof cotton. The air duct plate is fixed to the air inlet, so that the air intake channel formed by the air duct plate faces downward. Two angle steels are provided and fixed to the outer wall of the inverter and the inner wall of the air duct plate, respectively. One side of the steel frame is hinged to the angle steel of the air duct plate, and the other side of the steel frame is bolted to the angle steel of the inverter. A wire mesh is fixedly connected to the steel frame, and the dustproof cotton is fixed to the wire mesh.

[0005] Furthermore, the angle steel on the air duct plate is fixedly connected with a bayonet, and the steel frame is fixedly connected with a locking post that engages with the bayonet.

[0006] Furthermore, the bayonet is made of plastic or stainless steel in an arc shape.

[0007] Furthermore, baffles are fixedly connected to the inner wall of the air duct plate and the outer wall of the inverter, and the dustproof cotton is placed between the baffles and the angle steel.

[0008] Furthermore, the dustproof cotton is fixed to the wire mesh with cable ties.

[0009] Furthermore, the air duct plate is made of aluminum alloy and its surface is anodized.

[0010] Furthermore, rubber gaskets are provided at the connection points between the steel frame and the duct plate and inverter to reduce vibration and improve the sealing of the connection points.

[0011] Furthermore, the mesh size of the wire mesh is 20mm × 20mm.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By designing the air duct plate to guide downwards, the impact of dust in the airflow on the air inlet can be effectively reduced. Meanwhile, the combination of angle steel, steel frame, wire mesh, and dustproof cotton ensures airflow while improving dustproof performance. Furthermore, the use of hinged and threaded connections makes the installation and removal of dustproof components more convenient, significantly shortening maintenance time, reducing maintenance costs, and improving the reliability and stability of inverter operation. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0016] In the above attached diagram: 1. Inverter; 2. Air inlet; 3. Dust duct plate; 4. Angle steel; 5. Steel frame; 6. Dustproof cotton; 7. Bolt; 8. Wire mesh; 9. Buckle; 10. Buckle post; 11. Baffle. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to Figure 1 As shown, a photovoltaic inverter air duct structure is installed on a photovoltaic inverter 1. An air inlet 2 is provided on the side of the inverter 1. The structure includes an air duct plate 3, angle steel 4, steel frame 5, and dustproof cotton 6. The air duct plate 3 is fixed to the air inlet 2, so that the air intake channel formed by the air duct plate 3 faces downward. Two angle steels 4 are provided and fixed to the outer wall of the inverter 1 and the inner wall of the air duct plate 3, respectively. One side of the steel frame 5 is hinged to the angle steel 4 of the air duct plate 3, and the other side of the steel frame 5 is threadedly connected to the angle steel 4 of the inverter 1 by bolts 7. A wire mesh 8 is fixedly connected to the steel frame 5, and the dustproof cotton 6 is fixed to the wire mesh 8.

[0019] Working principle: By designing the air duct plate 3 as a downward-opening structure, combined with angle steel 4, a rotatable steel frame 5, and a wire mesh 8 with dustproof cotton 6, an easy-to-maintain and efficient dustproof air intake system is formed. This system can reduce dust entry while ensuring the heat exchange efficiency inside the inverter 1. Due to the use of hinged and threaded connection design, the dustproof components are easier to disassemble and assemble, greatly shortening maintenance time, reducing maintenance costs, and improving the reliability and stability of inverter 1 operation.

[0020] In this embodiment, please refer to Figure 1 As shown, a bayonet 9 is fixedly connected to the angle steel 4 on the air duct plate 3, and a locking post 10 that engages with the bayonet 9 is fixedly connected to the steel frame 5. Using the bayonet 9 facilitates the replacement of the wire mesh 8 and makes disassembly and assembly convenient. The bayonet 9 is made of plastic or stainless steel in an arc shape, saving costs and being easy to use.

[0021] In this embodiment, please refer to Figure 1 As shown, a baffle 11 is fixedly connected to the inner wall of the air duct plate 3 and the outer wall of the inverter 1, and the dustproof cotton 6 is disposed between the baffle 11 and the angle steel 4. The dustproof cotton 6 is used to fill the gap between the baffle 11 and the angle steel 4 to prevent dust from entering the inverter 1 through the gap of the dustproof cotton 6.

[0022] In this embodiment, the dustproof cotton 6 is fixed to the wire mesh 8 with cable ties. This facilitates the installation and removal of the dustproof cotton 6 and makes it convenient to use.

[0023] In this embodiment, the air duct plate 3 is made of aluminum alloy and its surface is anodized to enhance corrosion resistance and heat dissipation.

[0024] In this embodiment, rubber gaskets are provided at the connection points between the steel frame 5 and the duct plate 3 and the inverter 1 to reduce vibration and improve the sealing of the connection points.

[0025] In this embodiment, the wire mesh 8 has a mesh size of 20mm × 20mm. This effectively blocks larger particles from entering while ensuring sufficient ventilation.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model 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 this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A photovoltaic inverter air duct structure, installed on a photovoltaic inverter, wherein an air inlet is provided on the side of the inverter, characterized in that, The system includes a duct plate, angle steel, a steel frame, and dustproof cotton. The duct plate is fixed to the air inlet, with the air intake channel formed by the duct plate facing downwards. Two angle steels are provided and fixed to the outer wall of the inverter and the inner wall of the duct plate, respectively. One side of the steel frame is hinged to the angle steel of the duct plate, and the other side of the steel frame is bolted to the angle steel of the inverter. A wire mesh is fixedly connected to the steel frame, and the dustproof cotton is fixed to the wire mesh. The angle steel on the duct plate has a locking mechanism, and the steel frame is fixed with... The device includes a locking post that engages with a bayonet; the bayonet is made of plastic or stainless steel and is arc-shaped; baffles are fixedly connected to the inner wall of the duct plate and the outer wall of the inverter, and dustproof cotton is placed between the baffles and the angle steel; the dustproof cotton is fixed to the wire mesh with cable ties; the duct plate is made of aluminum alloy and its surface is anodized; rubber gaskets are provided at the connection points between the steel frame and the duct plate and the inverter to reduce vibration and improve the sealing of the connection points; the mesh size of the wire mesh is 20mm×20mm.

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