A detachable inverter fan cover

Abstract

The utility model discloses an inverter fan cover convenient to disassemble, including mesh cover and connecting fixed knot, the periphery of mesh cover is provided with bending structure, and the both ends of mesh cover install connecting fixed knot, and mesh cover sets up at the air inlet side of the fan of inverter body, and connecting fixed knot installs on the inverter body case, the utility model discloses can aim at the integral type external fan air inlet mesh cover structure of multiple fans, and the simple structure is high in reliability, and convenient to disassemble, and maintenance is simple.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic power generation technology, specifically relating to an inverter fan cover that is easy to disassemble. Background Technology

[0002] With the rise of the photovoltaic industry, inverters, as devices that convert direct current (DC) to alternating current (AC), are widely used in photovoltaic power generation plants. Inverters generate energy losses during operation, which are ultimately converted into heat, causing the inverter module temperature to rise. To ensure proper operation, inverters must be equipped with heat dissipation components to help cool the inverter modules. Most existing inverters use air cooling to address this heat dissipation issue.

[0003] Since inverters primarily operate outdoors, their working environment contains a significant amount of dust, lint, and other foreign matter. Prolonged operation can lead to a substantial accumulation of contaminants near the fan inlet grille, potentially causing partial blockage and hindering the fan's heat dissipation. Currently, mainstream inverters on the market do not consider the ease of disassembly and maintenance of the fan inlet grille, resulting in several structural design flaws:

[0004] 1. The air inlet and outlet screens are designed as a single sheet metal structure. The space in the inverter's operating environment is relatively limited, making the disassembly, cleaning, and installation of the screens on-site at the power station quite troublesome, with poor operability and affecting work efficiency.

[0005] 2. The cost of replacing the one-piece sheet metal air inlet and outlet mesh cover when it is damaged is relatively high. Modularization of factory production and on-site replacement can help reduce costs.

[0006] 3. The air inlet protective mesh cover of a single fan is fastened to the fan frame with screws. When the mesh cover is disassembled, cleaned and replaced, the fan will be separated from the fan frame, which increases the workload of on-site cleaning and the risk of installation errors. Utility Model Content

[0007] The purpose of this invention is to overcome the problems of inconvenient disassembly, difficulty in cleaning and maintenance, and impact on inverter fan heat dissipation of existing external fan inlet protective covers. This invention proposes an inverter fan cover that is easy to disassemble.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An easily detachable inverter fan cover includes a mesh cover and a connecting and fixing structure. The mesh cover has a bending structure around its perimeter, and the connecting and fixing structure is installed at both ends of the mesh cover. The mesh cover is located on the air inlet side of the fan of the inverter body, and the connecting and fixing structure is installed on the inverter body chassis.

[0010] Furthermore, the fan is mounted on a fan bracket, which is detachably mounted on the inverter body chassis. The fan bracket and the fan cover are positioned opposite each other, and the fan's air outlet is positioned opposite the heat dissipation module of the inverter body.

[0011] Furthermore, the fan is mounted on the fan bracket by fastening screws.

[0012] Furthermore, a pre-reserved notch is provided on the side of the bending structure near the wind turbine support.

[0013] Furthermore, a fixing hole is provided on one side of the connecting and fixing structure, and a combination screw is installed in the fixing hole. An angle is set between one side and the other side of the connecting and fixing structure.

[0014] Furthermore, the other side of the connecting and fixing structure is set in a trapezoidal shape.

[0015] Furthermore, one side of the connecting and fixing structure is mounted on the inverter body chassis by a combination screw, and the other side of the connecting and fixing structure is connected to the bending structure by fastening rivets.

[0016] Furthermore, the mesh cover is a hexagonal honeycomb mesh cover.

[0017] Furthermore, the surface of the fan cover is coated with an anti-corrosion coating.

[0018] Furthermore, the bending structure is made of sheet metal.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] This utility model proposes an easily disassembled inverter fan cover. The bending structure around the cover increases its overall strength and stability, effectively preventing deformation or damage caused by external forces or vibrations. The connecting and fixing structure is firmly connected to the inverter body chassis and the cover, ensuring the stability and reliability of the entire fan cover system. The structure is simple, reliable, and easy to manufacture, reducing production costs. It is less restricted by the operating space at the power station site, facilitating disassembly, cleaning, and installation. A single person can complete the disassembly and assembly of the inverter fan cover, improving operability and work efficiency. The disassembly and installation of the fan cover has minimal impact on other inverter components, avoiding additional workload. The modular design reduces replacement and maintenance costs when the fan cover is damaged. This utility model can be used for an integrated external fan inlet cover structure for multiple fans, featuring a simple structure, high reliability, easy disassembly and assembly, and convenient maintenance. Attached Figure Description

[0021] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0022] Figure 1 This is a schematic diagram of an inverter fan cover that is easy to disassemble and installed on the inverter body chassis according to the present invention.

[0023] Figure 2 This is a schematic diagram of the inverter fan of this utility model during maintenance.

[0024] Figure 3 This is a schematic diagram of the overall structure of the fan inlet mesh cover of this utility model.

[0025] Figure 4 This is a partially enlarged schematic diagram of the hexagonal honeycomb mesh cover of this utility model.

[0026] Figure 5 This is a schematic diagram of the connection and fixing structure of the fan cover of this utility model.

[0027] In this diagram, 00 represents the inverter body, 1 represents the inverter body chassis, 2 represents the fan cover, 21 represents the mesh cover, 211 represents the bent structure, 212 represents the reserved notch, 22 represents the connection and fixing structure, 221 represents the fastening rivet, 222 represents the fixing hole, 3 represents the fan, 4 represents the fan bracket, and 41 represents the fastening screw. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 should fall within the protection scope of the present invention.

[0029] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Example 1

[0033] A detachable inverter fan shroud includes a mesh cover 21 and a connecting and fixing structure 22. The mesh cover 21 has bending structures 211 around its perimeter, and the connecting and fixing structures 22 are installed at both ends of the mesh cover 21. The mesh cover 21 is located on the air inlet side of the fan 3 of the inverter body 00, and the connecting and fixing structures 22 are installed on the inverter body chassis 1. The surface of the shroud 21 is coated with an anti-corrosion paint. The mesh cover 21 is a hexagonal honeycomb mesh cover.

[0034] Fan 3 is mounted on fan bracket 4, which is detachably mounted on inverter chassis 1. Fan bracket 4 is positioned opposite to fan cover 2, and the air outlet of fan 3 is positioned opposite the heat dissipation module of inverter chassis 00. Fan 3 is mounted on fan bracket 4 using fastening screws 41. A pre-reserved notch 212 is provided on the side of the bent structure 211 near fan bracket 4. The bent structure 211 is made of sheet metal.

[0035] A fixing hole 222 is provided on one side of the connecting and fixing structure 22 for mounting a combination screw. An angle is set between one side and the other side of the connecting and fixing structure 22. The other side of the connecting and fixing structure 22 is trapezoidal. One side of the connecting and fixing structure 22 is mounted on the inverter body chassis 1 by the combination screw, and the other side of the connecting and fixing structure 22 is connected to the bending structure 211 by fastening rivets 221.

[0036] like Figure 1This is a schematic diagram of the fan cover of this utility model installed on the inverter chassis. The honeycomb mesh cover 21 with a bent structure 211 on the side is combined with the inverter chassis 1 to form a relatively closed structure. Outside air is blown to the inverter's heat dissipation module by the fan 3 after passing through the honeycomb mesh. The fan cover 2 is fastened to the inverter chassis 1 on each side by a combination screw.

[0037] like Figure 2 This diagram illustrates the operation of the inverter's fan 3 during maintenance. The fan 3 needs to be secured to the fan frame 4 with screws 41, and it requires frequent removal for maintenance. Two notches 212 are pre-drilled on the sheet metal bending structure 211 on one side of the fan cover 2 to allow the fan 3, along with the fan frame 4, to be easily removed, preventing interference between components during fan 3 removal.

[0038] like Figure 3 This is a schematic diagram of the overall structure of the fan inlet mesh cover of this utility model. The fan inlet mesh cover of this utility model consists of a hexagonal honeycomb mesh cover 21, a sheet metal bending structure 211, and a connecting and fixing structure 22. The surface of the fan cover 2 is coated with an anti-corrosion coating to enhance its corrosion resistance.

[0039] like Figure 4 This is a partially enlarged schematic diagram of the hexagonal honeycomb mesh cover 21 of this utility model. The overall structural rigidity of the mesh cover 21 is enhanced by the sheet metal bending structure 211 and fastening rivets 221, reducing its deformation during fan operation and improving the reliability of the fan cover 2. Two notches 212 are reserved on one side of the mesh cover to facilitate the removal of the fan 3 and fan frame 4, avoiding interference between component structures.

[0040] like Figure 5 This is a schematic diagram of the windshield connection and fixing structure 22 of this utility model. As shown in the figure, one connection and fixing structure 22 is provided on each side of the hexagonal honeycomb mesh cover 21, and is fastened to the mesh cover 21 by two fixing rivets 221 to prevent relative rotation between the connection and fixing structure 22 and the mesh cover 21. One side of the connection and fixing structure 22 is designed in a trapezoidal shape, which appropriately increases its rigidity while avoiding interference with installation tools, thus improving the convenience of assembling and disassembling the mesh cover 21.

[0041] This utility model provides a fan inlet mesh cover structure for fan units that is easy to disassemble, while satisfying the protection function of the external fan 3 of the inverter. The protective mesh cover consists of a hexagonal honeycomb mesh cover 21, a sheet metal bending structure 211, and a connecting and fixing structure 22. The hexagonal honeycomb mesh cover 21 filters out large foreign objects from the outside, and the connecting and fixing structure 22 fixes the hexagonal honeycomb mesh cover 21 to the inverter body chassis 1 by fastening rivets 221 and screws.

[0042] This utility model provides protection for inverter fan units by including a hexagonal honeycomb mesh cover, a sheet metal bending structure, and a connecting and fixing structure. The hexagonal honeycomb mesh cover contains numerous hexagonal mesh openings, which can filter larger foreign objects without affecting the airflow, ensuring the normal operation of the fan. The sheet metal bending structure and riveting fastening enhance the overall rigidity of the hexagonal honeycomb mesh cover, ensuring that it does not deform significantly during normal fan operation. Simultaneously, the sheet metal bending structure separates the honeycomb mesh openings from the fan, allowing for a more uniform airflow through the mesh and reducing the probability of clogging. Two notches are provided on one side of the hexagonal honeycomb mesh cover, facilitating the easy removal of the fan along with its frame during maintenance, preventing interference between components. The hexagonal honeycomb mesh cover has a connecting and fixing structure on each side, which is fastened to the main body of the mesh cover by rivets. Each of the two connecting and fixing structures has a round hole, through which screws are passed to fasten the air inlet protective mesh cover to the inverter main body chassis. The disassembly and assembly of the fan cover is simple and convenient, saving time and effort, and can be completed independently by a single person.

[0043] The bent structure around the mesh enclosure effectively resists external impacts or deformation by increasing cross-sectional rigidity and bending resistance. Studies have shown that geometric nonlinearity significantly affects the stability of single-layer mesh shells, and the bent design can optimize load distribution and improve critical load. Combined with high-density dustproof mesh material, it enhances protection against foreign object intrusion while maintaining ventilation efficiency. The mesh enclosure on the air inlet side can be equipped with low-resistance dustproof mesh (such as the air inlet design of solar inverters) to prevent dust from entering the inverter and reduce cleaning frequency. Modular air duct design (such as conical straight pipes) reduces airflow resistance and improves heat dissipation efficiency. Independent air inlets are connected to the outdoors through sealed pipes to avoid heat backflow. The modular structure is adaptable to complex scenarios such as marine and desert environments. It can predict maintenance needs through intelligent algorithms and, combined with dustproof and heat dissipation optimization, reduce component damage caused by overheating or dust accumulation, extending equipment life. The modular design supports modular transportation, reducing the difficulty of bringing large equipment to the site. For example, traditional centralized inverters require overall hoisting, while modular equipment can be disassembled for transportation, reducing construction costs. Independent modules support hot-swapping, avoiding overall downtime for maintenance; standardized components reduce spare parts inventory pressure and long-term operation and maintenance costs. The modular design supports on-demand expansion (e.g., paralleling 1.1MW power units to form an 8.8MW subarray), adapting to the needs of distributed or large-scale power plants. By adjusting the number and layout of modules, it can be matched with residential photovoltaic, industrial and commercial power plants, and agricultural-photovoltaic complementary projects, improving equipment reuse rate. Through five core advantages—rapid assembly and disassembly, robust structure, dustproof heat dissipation, extended lifespan, and cost optimization—it forms a highly efficient, reliable, and economical inverter protection solution. Its modular concept not only reduces the total lifecycle cost but also promotes the development of inverter technology towards greater efficiency and flexibility through intelligent operation and maintenance and scenario adaptation capabilities.

[0044] Example 2

[0045] The installation and removal process of an easy-to-disassemble inverter fan cover is as follows:

[0046] Connect the trapezoidal surface of the connecting and fixing structure 22 to the bent structure 211 of the mesh cover 21 using fastening rivets 221, ensuring the rivets are completely fixed. Install the side of the connecting and fixing structure 22 with the fixing holes 222 onto the inverter body chassis 1 using combination screws, ensuring the screws are tightened evenly.

[0047] Install the fan bracket 4 onto the inverter chassis 1 using a detachable method (such as pre-drilled holes or clips), ensuring the bracket is stable. Secure the fan 3 to the fan bracket 4 using fastening screws 41, ensuring the air outlet faces the heat dissipation module to avoid incorrect orientation.

[0048] Align the bent structure 211 of the mesh cover 21 with the fan bracket 4, ensuring that the reserved notch 212 does not interfere with the bracket. Check that the mesh cover 21 completely covers the air inlet of the fan 3, adjust its position, and confirm that it is fixed. Installation complete.

[0049] Loosen the combination screws on the connecting fixing structure 22 and remove the mesh cover 21 (separating it from the bending structure 211 via the trapezoidal surface). Loosen the fastening screws 41 on the fan 3 and remove the fan from the bracket 4. If complete disassembly is required, the fan bracket 4 can be further removed (operate according to the detachable design). Disassembly is complete.

[0050] This invention allows for quick disassembly of the fan cover when cleaning dust from the fan or inspecting the heat dissipation module. When the fan or support is damaged, the modular design allows for rapid component replacement. The flexible disassembly structure facilitates layout optimization when the heat dissipation system needs adjustment. This enables efficient installation and removal of the fan cover, improving equipment maintenance efficiency.

[0051] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed utility model subject matter.

[0052] The above content provides a further detailed description of this utility model. It should not be considered that the specific embodiments of this utility model are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of this utility model, and all of these should be considered to fall within the defined protection scope of this utility model.

Claims

1. An inverter fan cover that is easy to disassemble, characterized in that, Includes a mesh cover (21) and a connecting and fixing structure (22). The mesh cover (21) is provided with a bending structure (211) around its perimeter. The connecting and fixing structure (22) is installed at both ends of the mesh cover (21). The mesh cover (21) is provided on the air inlet side of the fan (3) of the inverter body (00). The connecting and fixing structure (22) is installed on the inverter body chassis (1). One side of the connecting and fixing structure (22) has a fixing hole (222) for installing a combination screw. An angle is set between one side and the other side of the connecting and fixing structure (22). One side of the connecting and fixing structure (22) is installed on the inverter body chassis (1) by the combination screw. The other side of the connecting and fixing structure (22) is connected to the bending structure (211) by fastening rivets (221).

2. The inverter fan cover that is easy to disassemble according to claim 1, characterized in that, The fan (3) is mounted on the fan bracket (4), which is detachably mounted on the inverter body chassis (1). The fan bracket (4) is positioned opposite to the fan cover (2), and the air outlet of the fan (3) is positioned opposite to the heat dissipation module of the inverter body (00).

3. The inverter fan cover that is easy to disassemble according to claim 2, characterized in that, The fan (3) is mounted on the fan bracket (4) by fastening screws (41).

4. The inverter fan cover that is easy to disassemble according to claim 2, characterized in that, The bent structure (211) has a reserved notch (212) on the side near the wind turbine support (4).

5. The inverter fan cover that is easy to disassemble according to claim 1, characterized in that, The other side of the connecting and fixing structure (22) is set as a trapezoid.

6. The inverter fan cover that is easy to disassemble according to claim 1, characterized in that, The mesh cover (21) is a hexagonal honeycomb mesh cover.

7. The inverter fan cover that is easy to disassemble according to claim 1, characterized in that, The surface of the fan cover (2) is coated with anti-corrosion paint.

8. The inverter fan cover that is easy to disassemble according to claim 1, characterized in that, The bending structure (211) is made of sheet metal.

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