Photovoltaic inverter fan structure

Abstract

The utility model provides a kind of photovoltaic inverter fan structure, including the fixed support being arranged on inverter shell, with the protective assembly being connected with the fixed support and the fan being arranged on the protective assembly, and gap is left between the protective assembly and inverter shell;The upper end of the protective assembly is extended to the fixed support and is provided with connecting end plate, and air inlet is opened on the connecting end plate;Protection installation protrusion is extended to the fixed support and is provided with protective cover shell towards protective assembly;Accommodating groove is provided on the connecting end plate, first connecting piece is provided in the accommodating groove, and the first connecting piece is connected with protection installation protrusion by passing through the connecting end plate.The protective cover shell is connected with fan by being set, it is guaranteed that cable cannot be wound by fan, air inlet is opened on the protective cover shell, air inlet path is increased, and the cooling effect of inverter is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of inverter technology, and is particularly applicable to a fan structure for a photovoltaic inverter. Background Technology

[0002] With the rapid development of the photovoltaic power generation industry, photovoltaic inverters, as the core power conversion equipment in photovoltaic power generation systems, directly affect the power generation efficiency and lifespan of the entire photovoltaic system due to their performance and reliability. When a photovoltaic inverter converts the direct current generated by photovoltaic panels into alternating current, heat is generated due to conduction losses and switching losses of power devices (such as IGBTs and MOSFETs). If this heat cannot be dissipated in time, the internal temperature will rise, leading to a series of chain reactions. Internal heat dissipation is achieved by adding cooling fans, which use forced airflow to accelerate heat removal.

[0003] Existing technologies fail to adequately address the combined environmental protection and heat dissipation requirements of inverters, such as internal dust prevention and cable entanglement prevention. In complex outdoor environments, dust and moisture easily penetrate, while heat dissipation performance is limited by inadequate protective structures. Therefore, there is an urgent need for a photovoltaic inverter bracket that combines efficient heat dissipation, reliable protection, optimized structure, and controllable cost to improve the overall performance of photovoltaic inverters. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a photovoltaic inverter fan structure.

[0005] To achieve the above-mentioned utility model objectives, this utility model provides a photovoltaic inverter fan structure, including a fixed bracket mounted on the inverter housing, a protective component connected to the fixed bracket, and a fan mounted on the protective component, wherein a gap is left between the protective component and the inverter housing; A connecting end plate is provided on the upper end of the protective component extending toward the fixed bracket, and an air inlet is provided on the connecting end plate; A protective mounting protrusion is provided on the fixed bracket extending toward the protective assembly; A receiving groove is provided on the connecting end plate, and a first connector is provided in the receiving groove. The first connector passes through the connecting end plate and is connected to the protective mounting protrusion.

[0006] More specifically, the protective component includes a protective bracket and a protective net disposed on the protective bracket. Fan mounting holes are provided at the four corners of the protective bracket. The connecting end plate is disposed on the upper end of the protective bracket. The fan is connected to the protective bracket, and the air inlet side of the fan faces the protective net.

[0007] More specifically, a safety protrusion is provided at the bottom of the protective bracket, the safety protrusion communicates with the fan mounting hole, a second connector is provided inside the safety protrusion, the second connector passes through the protective bracket and connects to the fan, and the safety protrusion covers the second connector.

[0008] More specifically, the safety gauge protrusion extends horizontally towards one side of the fixed bracket, the safety gauge protrusion is configured as a ring, and the axis of the safety gauge protrusion is on the same straight line as the axis of the fan mounting hole.

[0009] More specifically, a housing fixing plate is connected to the protective mounting protrusion, and the housing fixing plate is connected to the inverter housing. More specifically, the connecting end plate is disposed above the protective fixing plate.

[0010] More specifically, the fan is tilted.

[0011] More specifically, the air inlet is designed to be elongated, with the opening at one end gradually decreasing in size towards the other.

[0012] More specifically, the fan mounting hole located on the top of the protective bracket is situated within a receiving recess.

[0013] More specifically, the fixing bracket and protective components are made of plastic.

[0014] This utility model mainly designs a photovoltaic inverter fan structure. By setting a protective cover connected to the fan, the cable is prevented from being tangled by the fan. An air inlet is opened on the protective cover to increase the air intake path and ensure the cooling effect on the inverter. Attached Figure Description

[0015] Exemplary embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments described below are for illustrative purposes only and do not limit the scope of this application. In the accompanying drawings: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the fixed bracket, protective components, and fan assembly structure of this utility model; Figure 3 This is a three-dimensional structural diagram of the protective component of this utility model. Figure 1 ; Figure 4 This is a three-dimensional structural diagram of the protective component of this utility model. Figure 2 ; Figure 5 This is a three-dimensional structural diagram of the fixed bracket of this utility model; In the diagram: 1. Fixed bracket; 11. Protective installation protrusion; 12. Housing fixing plate; 2. Protective component; 21. Connecting end plate; 22. Protective bracket; 23. Protective net; 24. Accommodation groove; 25. Fan mounting hole; 26. Safety regulation protrusion; 27. Air inlet; 3. Fan; 4. Inverter housing. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this utility model. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model. The embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] It should be understood that the accompanying drawings are for illustrative purposes only.

[0019] A photovoltaic inverter fan structure, such as Figures 1-5 As shown, it includes a fixed bracket 1 mounted on the inverter housing 4, a protective component 2 connected to the fixed bracket 1, and a fan 3 mounted on the protective component 2.

[0020] The fixing bracket 1 is disposed on one side of the inverter housing 4 and fixed to the inverter housing 4 by bolts, and is used to fix the protective component 2. The fixing bracket 1 is a housing fixing plate 12, and a protective mounting protrusion 11 is provided on the housing fixing plate 12 extending towards the side close to the protective component 2. After the protective mounting protrusion 11 is disposed on the housing fixing plate 12, it forms a clearance groove with the housing fixing plate 12 to avoid the air inlet 27 disposed on the protective component 2. Furthermore, two protective mounting protrusions 11 can also be provided, and the two protective mounting protrusions 11 are respectively disposed at both ends of the housing fixing plate 12, forming a clearance groove between the two protective mounting protrusions 11. Of course, the fixing bracket 1 can also be a housing fixing plate 12 and a protective fixing plate connected to each other, with a second air inlet opened on the protective fixing plate, the second air inlet overlapping with the air inlet 27 disposed on the protective component 2.

[0021] The protective component 2 includes a protective bracket 22 and a protective net 23 disposed on the protective bracket 22. A connecting end plate 21 extends from the upper end of the protective bracket 22 toward the side near the fixed bracket 1. The connecting end plate 21 is used to connect with the protective mounting protrusion 11. Furthermore, the connecting end plate 21 is disposed above the protective mounting protrusion 11, enlarging the connection contact surface between the protective component 2 and the fixed bracket 1, thus preventing the protective mounting protrusion 11 from breaking. After the protective component 2 is connected to the fixed bracket 1, a gap is left between the protective component 2 and the side of the inverter housing 4 to facilitate cable passage and air intake.

[0022] An air inlet 27 is provided on the connecting end plate 21 to increase the air intake path. In addition to flowing to the fan 3 through the gap between the protective component 2 and the inverter housing 4, the airflow can also flow in through the air inlet 27, increasing the air intake path. At the same time, it can reduce the airflow dead zone inside the inverter housing 4, which is conducive to rapid heat dissipation.

[0023] The air inlet 27 can be set to any shape. In this solution, the air inlet 27 is set to a long strip shape, and the opening of the air inlet 27 gradually decreases from one end to the other. Of course, the air inlet 27 can also be set as a waist hole.

[0024] Fan mounting holes 25 are provided at the four corners of the protective bracket 22 for connecting the fan 3 to the protective bracket 22. After the fan 3 is connected to the protective bracket 22, the air intake side of the fan 3 faces the protective net 23. The protective net 23 is located between the side of the fan 3 and the inverter housing 4 to prevent the fan 3 from getting tangled in the cable. At the same time, since dust may enter the fan 3 during operation and affect its operation, the protective net 23 is placed between the side of the fan 3 and the inverter housing 4 to effectively prevent dust and ensure the normal operation of the fan 3.

[0025] A receiving groove 24 is provided on the connecting end plate 21, and a first connector is disposed within the receiving groove 24. The first connector passes through the connecting end plate 21 and connects to the protective mounting protrusion 11. The receiving groove 24 is used to avoid the first connector, preventing it from protruding from the connecting end plate 21 and affecting the installation of other components. In this design, two receiving grooves 24 are provided, located at both ends of the connecting end plate 21.

[0026] A third connector is provided in the fan mounting hole 25 at the top of the protective bracket 22. The third connector passes through the fan mounting hole 25 and is connected to the fan 3. In order to avoid the third connector protruding from the protective component 2 and thus affecting the connection between the protective component 2 and the fixed bracket 1, the fan mounting hole 25 at the top of the protective bracket 22 is located at the receiving groove 24.

[0027] The inclusion groove 24 provided on the connecting end plate 21 can further increase the strength of the connecting end plate 21 and further prevent the connecting end plate 21 from breaking, thus affecting the normal use of the fan 3.

[0028] Because the fan structure, after being fixed to the inverter housing 4, will leave a gap between itself and the bottom of the inverter housing 4, and other components are located at the bottom of the inverter housing 4, if the second connector connecting the fan 3 to the protective component 2 is exposed to the air, the safety distance between the second connector and the bottom components needs to be considered. Otherwise, it may easily cause damage to the components or cause them to malfunction. Therefore, a safety protrusion 26 is provided at the bottom of the protective bracket 22, and the second connector is located inside the safety protrusion 26. The second connector passes through the protective bracket 22 and connects to the fan 3. The safety protrusion 26 covers the second connector to prevent the second connector from being exposed and affecting other components.

[0029] Specifically, the safety protrusion 26 extends horizontally toward the side close to the fixed bracket 1. In this design, the safety protrusion 26 is set as an annular shape. The safety protrusion 26 communicates with the fan mounting hole 25. The axis of the safety protrusion 26 and the axis of the fan mounting hole 25 are on the same straight line, which facilitates the installation of the second connector to fix the fan 3 on the protective bracket 22.

[0030] Since there may be power components inside the inverter housing 4 that require focused cooling, the fan 3 can be tilted so that the airflow can focus on cooling a specific power component.

[0031] Since the fan 3 structure is connected to the connecting end plate 21 only through the protective mounting protrusion 11, if the weight of the fixed bracket 1 and the protective component 2 is too large, it will cause the protective mounting protrusion 11 and the connecting end plate 21 to break. Therefore, in this solution, the fixed bracket 1 and the protective component 2 are made of plastic material. Making them of plastic can reduce the overall weight of the inverter, making it easier to install and transport.

[0032] All connecting components used in this design are bolts.

[0033] This utility model mainly designs a photovoltaic inverter fan structure. A protective cover is connected to the fan 3 to prevent cables from getting tangled in the fan 3. An air inlet 27 is provided on the protective cover to increase the air intake path and ensure effective cooling of the inverter. A recessed groove 24 is provided to avoid obstructing the connector and increase the strength of the connecting end plate 21. A safety protrusion 26 is provided to cover the second connector and prevent interference with the use of other components.

[0034] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0035] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0036] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A photovoltaic inverter fan structure, characterized in that: It includes a fixed bracket (1) installed on the inverter housing (4), a protective component (2) connected to the fixed bracket (1), and a fan (3) installed on the protective component (2), with a gap between the protective component (2) and the inverter housing (4); A connecting end plate (21) is provided on the upper end of the protective component (2) extending toward the fixed bracket (1), and an air inlet (27) is provided on the connecting end plate (21); A protective mounting protrusion (11) is provided on the fixed bracket (1) extending toward the protective assembly (2); A receiving groove (24) is provided on the connecting end plate (21), and a first connector is provided in the receiving groove (24). The first connector passes through the connecting end plate (21) and connects to the protective mounting protrusion (11).

2. The photovoltaic inverter fan structure according to claim 1, characterized in that: The protective component (2) includes a protective bracket (22) and a protective net (23) set on the protective bracket (22). Fan mounting holes (25) are provided at the four corners of the protective bracket (22). The connecting end plate (21) is set on the upper end of the protective bracket (22). The fan (3) is connected to the protective bracket (22). The air inlet side of the fan (3) is set towards the protective net (23).

3. The photovoltaic inverter fan structure according to claim 2, characterized in that: A safety protrusion (26) is provided on the protective bracket (22), and a second connector is provided inside the safety protrusion (26). The second connector passes through the protective bracket (22) and is connected to the fan (3). The safety protrusion (26) covers the second connector.

4. The photovoltaic inverter fan structure according to claim 3, characterized in that: The safety protrusion (26) extends horizontally toward one side of the fixed bracket (1). The safety protrusion (26) is set as a ring. The safety protrusion (26) communicates with the fan mounting hole (25) at the bottom of the protective bracket (22). The axis of the safety protrusion (26) and the axis of the fan mounting hole (25) are on the same straight line.

5. The photovoltaic inverter fan structure according to claim 1, characterized in that: The fixed bracket (1) is configured as a housing fixing plate (12), which is connected to the inverter housing (4). The protective mounting protrusion (11) is connected to the housing fixing plate (12) and forms a relief groove.

6. The photovoltaic inverter fan structure according to claim 1, characterized in that: The connecting end plate (21) is positioned above the protective mounting protrusion (11).

7. The photovoltaic inverter fan structure according to claim 1, characterized in that: The fan (3) is tilted.

8. The photovoltaic inverter fan structure according to claim 7, characterized in that: The air inlet (27) is elongated, with one end of the air inlet (27) opening smaller and smaller towards the other end.

9. The photovoltaic inverter fan structure according to claim 2, characterized in that: The fan mounting hole (25) located on the top of the protective bracket (22) is located in the receiving groove (24).

10. The photovoltaic inverter fan structure according to claim 1, characterized in that: The fixed bracket (1) and the protective component (2) are made of plastic.

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