Inverter for photovoltaic power generation

Abstract

The utility model discloses an inverter for photovoltaic power generation, and relates to the technical field of photovoltaic inverters. The device comprises a shell, the upper side of the shell is fixedly connected with a driving motor, and the upper side of the inner wall of the shell is rotationally matched with a driving rod fixedly connected with the driving motor. Through the arrangement of the semicircular block, the semicircular block can be driven to rotate along with the rotation of the air inlet fan blade in the rotation process of the air inlet fan blade, the non-slip block is rotated through the semicircular block, so that the cleaning brush is driven to rotate by an angle under the action of the cleaning rod, then the semicircular block is separated from the non-slip block, and the cleaning brush is reset under the action of the torsion spring; the cleaning brush can be turned over repeatedly around the cleaning rod, dust filtered on the upper side of the filter screen is cleaned to the two sides, the situation that due to the fact that the filter screen is blocked by the dust, air flow is poor, and the heat dissipation effect is reduced is avoided, and the heat dissipation effect in the using process is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic inverters, and specifically relates to an inverter for photovoltaic power generation. Background Art

[0002] Photovoltaic inverters are inverters that can convert the variable DC voltage generated by photovoltaic solar panels into AC power at the mains frequency, which can be fed back to the commercial power transmission system or used for off-grid power grids. Inverters are often an indispensable component in the photovoltaic power generation process.

[0003] The Chinese patent with publication number CN217282725U discloses a photovoltaic power inverter, with ventilation holes on both sides of the casing, and stepped holes on both sides of the top of the casing, with dust screens placed in the two stepped holes. The dust screen can filter dust in the air entering the casing, but after the dust is filtered, the dust will adhere to the upper side of the dust screen, and long-term accumulation will cause poor air circulation, which will still cause poor heat dissipation.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an inverter for photovoltaic power generation.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] An inverter for photovoltaic power generation, comprising a housing, a driving motor is fixedly connected to the upper side of the housing, a driving rod fixedly connected to the driving motor is rotatably matched to the upper side of the inner wall of the housing, two air intake blades matched with the driving rod are rotatably matched to the upper side of the inner wall of the housing, and semicircular blocks are fixedly connected to the two air intake blades;

[0008] Two air inlets are provided on the upper side of the shell, and the inner walls of the two air inlets are both equipped with filter screens. Two cleaning rods are rotatably matched on the upper side of the shell, and one side of the two cleaning rods is fixedly connected with a cleaning brush in contact with the filter screen, and the lower ends of the two cleaning rods are fixedly connected with an anti-sliding block in contact with the semicircular block, and a torsion spring is installed between the anti-sliding block and the shell;

[0009] The inverter body is fixedly connected to the lower side of the inner wall of the shell, and exhaust mechanisms are installed on both sides of the inner wall of the shell.

[0010] Optionally, the exhaust mechanism includes a plurality of exhaust ports opened on both sides of the housing and a protective net fixedly connected to the inner walls of the plurality of exhaust ports. The exhaust ports are used to exhaust air inside the housing, and the protective net can prevent dust from entering from the exhaust ports during use, thereby increasing the dustproof effect.

[0011] Optionally, two driving sprockets are fixedly connected to the driving rod, and two intake fan blades are fixedly connected to driven sprockets, and a chain is installed between the two driving sprockets and the two driven sprockets. When the driving rod rotates, the two driven sprockets can be rotated by the chain, so that the intake fan blades can follow the rotation of the driving rod, and the driving rod can rotate and drive the two intake fans to follow the rotation.

[0012] Optionally, the lower end of the driving rod is fixedly connected to a first bevel gear, and two connecting rods are rotatably matched on both sides of the inner wall of the driving rod, and the adjacent sides of the two connecting rods are fixedly connected to a second bevel gear meshing with the first bevel gear, and the two connecting rods are fixedly connected to an exhaust fan. When the driving rod rotates, the first bevel gear drives the two second bevel gears to rotate, so that the two connecting rods rotate accordingly, and the exhaust fan rotates, thereby achieving rapid discharge of gas in the shell and increasing the heat dissipation effect.

[0013] Optionally, brush plates are installed at both ends of the two connecting rods. When the two first bevel gears rotate, the protection net can be cleaned through the two brush plates, and the cleaning port can directly blow away, thereby increasing the cleanliness of the protection net.

[0014] Optionally, a protection box located outside the drive motor is fixedly connected to the upper side of the housing. The protection box is used to protect the drive motor, reduce the possibility of damage to the drive motor during use, and increase the service life of the drive motor.

[0015] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0016] By arranging the semicircular block, the air intake fan blade can be driven to rotate with the semicircular block during rotation, and the semicircular block can rotate the anti-sliding block, so that the cleaning brush can be driven to rotate by the action of the cleaning rod, and then the semicircular block is separated from the anti-sliding block, and the cleaning brush is reset by the action of the torsion spring, so that the cleaning brush can be repeatedly flipped around the cleaning rod, and the dust filtered on the upper side of the filter net can be cleaned to both sides, so as to avoid dust blocking the filter net, resulting in poor air flow, reduced heat dissipation effect, and further improved heat dissipation effect during use.

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 This is a schematic diagram of a three-dimensional structure of a semicircular block according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of an embodiment of the utility model;

[0021] Figure 3 It is a front cross-sectional structural schematic diagram of an embodiment of the utility model;

[0022] Figure 4 For an embodiment of the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Casing; 2. Driving motor; 3. Driving rod; 4. Inlet fan blades; 5. Semicircular block; 6. Air inlet; 7. Filter; 8. Cleaning rod; 9. Cleaning brush; 10. Anti-sliding block; 11. Torsion spring; 12. Inverter body; 13. Exhaust mechanism; 131. Exhaust port; 132. Protective net; 14. Driving sprocket; 15. Driven sprocket; 16. Chain; 17. First bevel gear; 18. Connecting rod; 19. Second bevel gear; 20. Exhaust fan; 21. Brush plate; 22. Protective box.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will now be further described in detail with reference to the accompanying drawings.

[0027] See also Figure 1-4 As shown, in this embodiment, an inverter for photovoltaic power generation is provided, including a housing 1, a driving motor 2 is fixedly connected to the upper side of the housing 1, a driving rod 3 fixedly connected to the driving motor 2 is rotatably matched on the upper side of the inner wall of the housing 1, two air intake blades 4 matched with the driving rod 3 are rotatably matched on the upper side of the inner wall of the housing 1, and semicircular blocks 5 are fixedly connected to the two air intake blades 4;

[0028] Two air inlets 6 are provided on the upper side of the housing 1, and the inner walls of the two air inlets 6 are both provided with filter screens 7. Two cleaning rods 8 are rotatably matched on the upper side of the housing 1, and a cleaning brush 9 in contact with the filter screen 7 is fixedly connected to one side of the two cleaning rods 8, and an anti-sliding block 10 in contact with the semicircular block 5 is fixedly connected to the lower ends of the two cleaning rods 8, and a torsion spring 11 is provided between the anti-sliding block 10 and the housing 1;

[0029] An inverter body 12 is fixedly connected to the lower side of the inner wall of the housing 1 , and exhaust mechanisms 13 are installed on both sides of the inner wall of the housing 1 .

[0030] One aspect of the application of this embodiment is: when in use, the driving rod 3 and the two air intake blades 4 are driven to rotate by the starter 2, and the air flow is accelerated by the rotation of the two air intake blades 4, and the wind enters from the air inlet 6, and the flowing impurities are filtered through the filter 7;

[0031] During the rotation of the air intake fan blades 4, the semicircular block 5 will be driven to rotate along with it. When the semicircular block 5 rotates and contacts the anti-slip block 10, the mutual squeezing of the two will drive the anti-slip block 10 to rotate. The anti-slip block 10 rotates the cleaning rod 8 so-called intermediate transmission, so that the cleaning brush 9 can be rotated. Since the semicircular block 5 is semicircular, when the semicircular block 5 is separated from the anti-slip block 10, the cleaning brush 9 will be instantly returned to the original position through the torsion spring 11, so that the cleaning brush 9 can clean the upper side of the filter screen 7, thereby reducing the accumulation of dust on the upper side of the filter screen 7 during use, resulting in blockage of the air inlet 6 and causing poor ventilation, affecting the heat dissipation effect, thereby further improving the heat dissipation effect during use.

[0032] By setting the semicircular block 5, the semicircular block 5 can be driven to rotate during the rotation of the air intake fan blade 4. The semicircular block 5 can rotate the anti-slip block 10, so that the cleaning brush 9 is driven to rotate 180° under the action of the cleaning rod 8. Then the semicircular block 5 is separated from the anti-slip block 10, and the cleaning brush 9 is reset under the action of the torsion spring 11, so that the cleaning brush 9 can be repeatedly flipped around the cleaning rod 8, and the dust filtered on the upper side of the filter screen 7 can be cleaned to both sides, so as to avoid dust blocking on the filter screen 7, resulting in poor air flow, reduced heat dissipation effect, and further improved heat dissipation effect during use.

[0033] The exhaust mechanism 13 of this embodiment includes a plurality of exhaust ports 131 opened on both sides of the outer shell 1 and a protective net 132 fixedly connected to the inner walls of the plurality of exhaust ports 131. The exhaust ports 131 are used to discharge the air inside the outer shell 1. The protective net 132 can prevent dust from entering from the exhaust ports 131 during use. Since the exhaust ports 131 are air outlets, generally, excessive dust will not be generated on the exhaust ports 131.

[0034] In this embodiment, two active sprockets 14 are fixedly connected to the driving rod 3, and two intake fan blades 4 are fixedly connected to driven sprockets 15. A chain 16 is installed between the two active sprockets 14 and the two driven sprockets 15. When the driving rod 3 rotates, the two driven sprockets 15 can be rotated through the chain 16, so that the intake fan blades 4 can follow the rotation when the driving rod 3 rotates.

[0035] The lower end of the driving rod 3 of the present embodiment is fixedly connected with a first bevel gear 17, and both sides of the inner wall of the driving rod 3 are rotatably matched with two connecting rods 18, and the adjacent sides of the two connecting rods 18 are fixedly connected with a second bevel gear 19 meshing with the first bevel gear 17, and the two connecting rods 18 are fixedly connected with an exhaust fan 20. When the driving rod 3 rotates, the first bevel gear 17 drives the two second bevel gears 19 to rotate, so that the two connecting rods 18 rotate accordingly, and the exhaust fan 20 rotates, thereby achieving the rapid discharge of gas in the outer shell 1 and increasing the heat dissipation effect.

[0036] In this embodiment, both ends of the two connecting rods 18 are equipped with brush plates 21. When the two first bevel gears 17 rotate, the protection net 132 can be cleaned through the two brush plates 21, and the cleaning port can directly blow away, thereby increasing the cleanliness of the protection net 132.

[0037] The upper side of the housing 1 of this embodiment is fixedly connected with a protection box 22 located outside the drive motor. The protection box 22 is used to protect the drive motor 2 to reduce the possibility of damage to the drive motor 2 during use.

[0038] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. A photovoltaic power generation inverter, characterized in that: include: A housing (1), the upper side of the housing (1) is fixedly connected to a driving motor (2), the upper side of the inner wall of the housing (1) is rotatably matched with a driving rod (3) fixedly connected to the driving motor (2), the upper side of the inner wall of the housing (1) is rotatably matched with two air intake blades (4) matched with the driving rod (3), and the two air intake blades (4) are fixedly connected to a semicircular block (5); Two air inlets (6) are provided on the upper side of the housing (1), and the inner walls of the two air inlets (6) are both provided with filter screens (7). Two cleaning rods (8) are rotatably coupled to the upper side of the housing (1), and one side of the two cleaning rods (8) is fixedly connected with a cleaning brush (9) in contact with the filter screen (7). The lower ends of the two cleaning rods (8) are fixedly connected with an anti-sliding block (10) in contact with the semicircular block (5), and a torsion spring (11) is provided between the anti-sliding block (10) and the housing (1); An inverter body (12) is fixedly connected to the lower side of the inner wall of the outer shell (1), and exhaust mechanisms (13) are installed on both sides of the inner wall of the outer shell (1).

2. A photovoltaic power generation inverter according to claim 1, characterized in that: The exhaust mechanism (13) comprises a plurality of exhaust ports (131) opened on both sides of the housing (1) and a protective net (132) fixedly connected to the inner walls of the plurality of exhaust ports (131).

3. The photovoltaic power generation inverter according to claim 1, characterized in that: Two driving sprockets (14) are fixedly connected to the driving rod (3), and two air intake blades (4) are fixedly connected to driven sprockets (15). A chain (16) is installed between the two driving sprockets (14) and the two driven sprockets (15).

4. The photovoltaic power generation inverter according to claim 1, characterized in that: The lower end of the driving rod (3) is fixedly connected to a first bevel gear (17), and two connecting rods (18) are rotatably matched on both sides of the inner wall of the driving rod (3), and the adjacent sides of the two connecting rods (18) are fixedly connected to a second bevel gear (19) meshing with the first bevel gear (17), and the two connecting rods (18) are fixedly connected to an exhaust fan (20).

5. The photovoltaic power generation inverter according to claim 4, characterized in that: Brush plates (21) are installed at both ends of the two connecting rods (18).

6. The photovoltaic power generation inverter according to claim 1, characterized in that: The upper side of the housing (1) is fixedly connected to a protection box (22) located outside the drive motor (2).

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