Photovoltaic grid-connected inverter mechanism

Abstract

The application discloses a kind of photovoltaic grid-connected inverter mechanisms, including support, the side of the support is equipped with connecting frame, the side of the connecting frame is equipped with body, the bottom of the body is equipped with the connecting line being connected with power supply box, the bottom of the body is equipped with the box body being collected to connecting line, the inside of the box body is equipped with the induction component being fixed to connecting line, in this photovoltaic grid-connected inverter mechanism, by induction component, while accelerating the gas flow around connecting line, also inhibit the dissolution phenomenon of the outer wall of connecting line by the extrusion of expansion part, more convenient for staff to overhaul and maintain inverter, improve work safety.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic inverter technology, specifically to a photovoltaic grid-connected inverter mechanism. Background Technology

[0002] A grid-connected photovoltaic (PV) power generation system is a PV power generation system that is connected to the power grid and transmits electricity to the grid. A PV grid-connected inverter is an important component of a PV grid-connected power generation system, used to convert direct current (DC) from solar panels into alternating current (AC), thereby outputting a sinusoidal AC current to the grid that is in phase and frequency with the grid voltage.

[0003] Currently, the installation of photovoltaic inverters typically involves workers carrying installation tools to install the inverter casing. After installation, the cables connecting the inverter to the power supply box are usually exposed. These power cables are generally made of rubber to ensure insulation. Since photovoltaic conversion often requires areas with high sunlight intensity, the inverter is usually located in a relatively high-temperature environment. Furthermore, the photovoltaic conversion process inside the inverter generates significant heat. Over time, this can cause the rubber on the cables to melt and adhere to the inverter's interface, resulting in poor cable insulation. If maintenance personnel perform routine inspections and repairs in this situation, it could pose a safety hazard. Therefore, we propose a photovoltaic grid-connected inverter mechanism. Summary of the Invention

[0004] The purpose of this invention is to provide a photovoltaic grid-connected inverter mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic grid-connected inverter mechanism, including a bracket, a connecting frame on one side of the bracket, a body on one side of the connecting frame, a connecting cable for connecting to a power supply box at the bottom of the body, a box for collecting the connecting cable at the bottom of the body, and a collection component for fixing the connecting cable inside the box.

[0006] Preferably, the summarizing component includes an elastic cylinder located outside the connecting line. The elastic cylinder has multiple support bars inside, one side of which is fixedly connected to the connecting line. The surface of the elastic cylinder has multiple through holes for gas to pass through. The outer side of the elastic cylinder has multiple fixing bars for supporting it. Each support bar includes an expansion portion located inside the elastic cylinder. One side of the expansion portion is in close contact with the inner wall of the elastic cylinder. The minimum expansion temperature of the expansion portion is lower than the minimum expansion temperature of the outer wall of the connecting line.

[0007] Preferably, the elastic cylinder is provided with a detection component for detecting whether the connecting wire is leaking current. The detection component includes a limiting cylinder located outside the elastic cylinder, a connecting plate outside the limiting cylinder, a pressing block above the connecting plate, a battery box at the bottom of the connecting plate, a warning light inside the battery box, multiple protruding strips outside the elastic cylinder, multiple square holes for sliding of the protruding strips inside the limiting cylinder, multiple contact strips inside the elastic cylinder, and a stop strip attached to the elastic cylinder on one side of each contact strip.

[0008] Preferably, the top of the contact strip is sloping, the end of the contact strip is aligned with the square hole of the limiting cylinder, and the height of the square hole is less than the height of the contact strip outside the elastic cylinder.

[0009] Preferably, the bottom of the connecting plate is provided with a spring, and the end of the spring is provided with a fixing plate, which is located on one side of the box and fixedly connected to it.

[0010] Preferably, the limiting cylinder has a plurality of scraper blocks arranged in a centrally symmetrical manner above it, the limiting cylinder has a transmission belt on its outside, the transmission belt has a rotating drum on its inner wall, the rotating drum has a fixed shaft inside it, and one end of the fixed shaft is located above the connecting plate and fixedly connected to it.

[0011] Preferably, one side of the body is provided with an auxiliary mounting assembly for mounting the body above the connecting frame. The mounting assembly includes a connecting box located on one side of the body. Multiple handles are provided above the connecting box. Inside the connecting box, there is a limiting block 1 that penetrates the connecting box and the connecting frame. One side of the limiting block 1 is provided with a toothed plate 1. One side of the toothed plate 1 is provided with a gear that meshes with it. One side of the gear is provided with a toothed plate 2 that meshes with it. One side of the toothed plate 2 is provided with a limiting block 2 that penetrates the connecting box and the connecting frame. Inside the gear is a connecting shaft that penetrates the connecting box. The connecting shaft is provided with a knob on the outside of the connecting shaft. The outer wall of the knob is provided with a connecting block. The bottom of the connecting block is provided with a limiting post. Inside the connecting box, there is a limiting hole for the limiting post to be inserted.

[0012] Preferably, a cylinder is provided on one side of the gear, the cylinder is located outside the connecting shaft, and a torsion spring is provided between the cylinder and the connecting shaft.

[0013] Preferably, the box body is provided with a rotating plate inside, the rotating plate is rotatably connected to the box body through a rotating shaft, and a housing is provided on one side of the machine body, the housing is located above the connecting plate and covers it.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, the operator can first use multiple fixing strips to fix the elastic cylinder relatively flat at the bottom of the box, so as to initially reduce the contact area between the connecting wire and the interface of the machine body. In addition, when the inverter is normally converting photovoltaic power, the high temperature gas in the connection port area at the bottom of the machine body will dissipate from the inside of the connecting wire to the outside of the box through the through hole. When the temperature inside the box continues to rise until it exceeds the minimum expansion temperature of the expansion part, the expansion part will expand before the outer wall of the connecting wire. The expansion part, which continues to expand, will expand the elastic cylinder outward, increasing the distance between the connecting wire and the elastic cylinder. On the other hand, it will cause some of the gas between the connecting wire and the elastic cylinder to be discharged to the outside of the through hole. While accelerating the gas flow around the connecting wire, the expansion part also suppresses the dissolution of the outer wall of the connecting wire through compression, making it easier for the operator to inspect and maintain the inverter and improving work safety.

[0016] 2. In this invention, during the inverter maintenance process, the rotating drum located above the connecting plate can be rotated first. The rotating drum will drive the limiting cylinder inside the transmission belt to rotate, which in turn will cause the scraper block located above the limiting cylinder to rotate, and loosen the interface between the connecting wire and the machine body. This allows some of the melted rubber on the outer wall of the connecting wire to detach from the bottom of the machine body, making it easier for the staff to maintain the inverter. After this, by pressing the pressing block, the connecting plate will drive the limiting cylinder to move downward along the outer wall of the elastic cylinder. During this process, the square hole inside the limiting cylinder will abut against the inclined part of the contact strip, gradually causing the contact strip to move closer to the connecting wire. Simultaneously, the stop bar will also block the elastic cylinder and bring it closer to the connecting line. When the ends of multiple contact bars are in contact with the outer wall of the connecting line, the contact bars, connecting line, limit cylinder, connecting plate, battery box, and warning light will form a closed circuit. At this time, the operator can judge whether the connecting line is in a safe insulation state by observing whether the warning light on the side of the battery box is lit. If the warning light is not lit, the pressing block can be released, and the spring force will automatically drive the connecting plate back to its original position, so as to facilitate a secondary test of the insulation of the connecting line. Using the test component, the insulation state of its connecting line can be effectively detected before the inverter is turned on, further improving the safety of the operator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0019] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0020] Figure 4 For the present invention Figure 3 Enlarged view of the structure of region A in the middle;

[0021] Figure 5 For the present invention Figure 3 Enlarged view of the structure of region B in the middle;

[0022] Figure 6 This is a partial structural cross-sectional view of the present invention;

[0023] Figure 7 For the present invention Figure 6 Enlarged view of the structure of region C in the middle;

[0024] Figure 8 This is a partial structural cross-sectional view of the present invention;

[0025] Figure 9 For the present invention Figure 8 Enlarged view of the structure of region D in the middle;

[0026] Figure 10 For the present invention Figure 8 Enlarged view of the structure of region E in the middle;

[0027] Figure 11 This is a schematic diagram of the installation component structure of the present invention;

[0028] Figure 12 For the present invention Figure 11 Enlarged view of the structure of the F region.

[0029] In the diagram: 1-Bracket; 2-Connecting frame; 3-Body; 4-Connecting cable; 5-Box; 6-Collection component; 61-Elastic cylinder; 62-Supporting strip; 621-Expansion part; 63-Through hole; 64-Fixing strip; 7-Detection component; 71-Limiting cylinder; 72-Connecting plate; 73-Pressing block; 74-Battery box; 75-Warning light; 76-Protruding strip; 77-Square hole; 78-Contact strip; 79-Stop strip; 8-Spring; 9-Fixing plate; 10- 11-Scraper; 12-Transmission belt; 13-Rotating drum; 14-Fixed shaft; 15-Mounting assembly; 16-Connecting box; 17-Handle; 18-Limiting block one; 19-Limiting block two; 10-Gear plate one; 10-Gear; 11-Gear two; 12-Connecting shaft; 13-Knob; 144-Limiting post; 15-Limiting hole; 16-Cylinder body; 17-Torsion spring; 18-Rotating plate; 19-Housing shell. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-12 This invention provides a technical solution: a photovoltaic grid-connected inverter mechanism. This solution solves the problems mentioned in the background art. The solution makes corresponding improvements to address these problems, including a support 1, a connecting frame 2 on one side of the support 1, one side of the connecting frame 2 being fixedly connected to the support 1, a body 3 on one side of the connecting frame 2, a connecting cable 4 for connecting to a power supply box at the bottom of the body 3, a box 5 for collecting the connecting cable 4 at the bottom of the body 3, one side of the box 5 being fixedly connected to the body 3, a collection component 6 for fixing the connecting cable 4 inside the box 5, and a rotating plate 17 inside the box 5. The rotating plate 17 is rotatably connected to the box 5 via a rotating shaft, allowing the rotating plate 17 to be moved above the box 5 at any time during maintenance. The box 5 is opened to allow for inspection and maintenance of the connecting wires 4 and connecting ports inside. The assembly 6 includes an elastic cylinder 61 located outside the connecting wires 4. The elastic cylinder 61 is rotatably connected to the connecting wires 4. The interior of the elastic cylinder 61 is provided with multiple support bars 62. The support bars 62 pass through the elastic cylinder 61 and are fixedly connected to the connecting wires 4 on one side. The surface of the elastic cylinder 61 is provided with multiple through holes 63 for gas to pass through. The exterior of the elastic cylinder 61 is provided with multiple fixing bars 64 for supporting it. The bottom of the fixing bars 64 is fixedly connected to the box 5. The support bars 62 include expansion parts located inside the elastic cylinder 61. One side of the expansion parts is in close contact with the inner wall of the elastic cylinder 61. The minimum expansion temperature of the expansion parts is lower than the minimum expansion temperature of the outer wall of the connecting wires 4.

[0032] Workers can first use multiple fixing strips 64 to fix the elastic cylinder 61 relatively flat at the bottom of the box 5, so as to initially reduce the contact area between the connecting line 4 and the interface of the body 3. In addition, when the inverter is normally converting photovoltaic power, the high-temperature gas in the connection port area at the bottom of the body 3 will dissipate from the inside of the connecting line 4 to the outside of the box 5 through the through hole 63. When the temperature inside the box 5 continues to rise until it exceeds the minimum expansion temperature of the expansion part, the expansion part will expand before the outer wall of the connecting line 4. The expansion part, which continues to expand, will expand the elastic cylinder 61 outward, increasing the distance between the connecting line 4 and the elastic cylinder 61. On the other hand, it will cause some of the gas between the connecting line 4 and the elastic cylinder 61 to be discharged to the outside of the through hole 63. While accelerating the gas flow around the connecting line 4, it also suppresses the melting phenomenon of the outer wall of the connecting line 4 through the compression of the expansion part, making it easier for workers to inspect and maintain the inverter and improving work safety.

[0033] Furthermore, a mounting assembly 14 is provided on one side of the fuselage 3 to assist the fuselage 3 in mounting above the connecting frame 2. The mounting assembly 14 includes a connecting box 141 located on one side of the fuselage 3. One side of the connecting box 141 is fixedly connected to the fuselage 3. Multiple handles 142 are provided on the top of the connecting box 141, and the bottom of each handle 142 is fixedly connected to the connecting box 141. Inside the connecting box 141, there is a limiting block 143 that penetrates the connecting box 141 and the connecting frame 2. One side of the limiting block 143 has a toothed plate 145 that is fixedly connected to it. One side of the toothed plate 145 has a gear 146 that meshes with it. One side of the gear 146 has a toothed plate 147 that meshes with it. One side of the toothed plate 147 has a limiting block 144 that penetrates the connecting box 141 and the connecting frame 2. One side of the toothed plate 147 is fixedly connected to the limiting block 144. Inside the gear 146, there is a connecting shaft 14. 8. The connecting shaft 148 is rotatably connected to the connecting box 141. The connecting shaft 148 passes through the connecting box 141. A knob 149 is provided on the outside of the connecting shaft 148. The knob 149 can slide freely above the connecting shaft 148. A connecting block 1410 is provided on the outer wall of the knob 149 and is fixedly connected to it. A limiting post 1411 is provided at the bottom of the connecting block 1410 and is fixedly connected to it. A limiting hole 1412 for the limiting post 1411 to be inserted is provided inside the connecting box 141. A cylinder 15 is provided on one side of the gear 146 and is fixedly connected to it. The cylinder 15 is located outside the connecting shaft 148. A torsion spring 16 is provided between the cylinder 15 and the connecting shaft 148. Under normal conditions, the elastic force of the torsion spring 16 can drive the gear 146 to rotate the gear plate 145 and the gear plate 147 to move, and make the limiting block 143 and the limiting block 144 pass through the connecting box 141 and the connecting frame 2.

[0034] When the operator needs to install the machine body 3 on top of the connecting frame 2, the connecting box 141 and the machine body 3 can be lifted upwards directly using the handle 142. The knob 149 drives the connecting shaft 148 to rotate, which in turn drives the gear 146 to rotate. The rotating gear 146 drives the gear plate 145 and gear plate 147 to move closer together. After the knob 149 has rotated 90°, it can be slid downwards along the connecting shaft 148 so that the limiting post 1411 is inserted into the limiting hole 1412. In this state, the ends of the limiting block 143 and the limiting block 144 will be located inside the connecting box 141. After this, the bottom of the inclined part of the connecting box 141 is inserted into the protruding part of the connecting frame 2. During this process, the bottom of the knob 149 can be... When the limiting post 1411 is lifted upwards until it disengages from the limiting hole 1412, the spring force of the torsion spring 16 will automatically drive the knob 149 and gear 146 to reset. Then, the ends of the first limiting block 143 and the second limiting block 144 will abut against the inner wall of the connecting box 141. As the connecting box 141 is pushed downwards, when the first limiting block 143 and the second limiting block 144 are aligned with the connection port of the connecting frame 2, they will pop out simultaneously under the action of the spring force of the torsion spring 16, thus fixing the body 3 and the connecting frame 2 together. Using the installation component 14, the operator can quickly and stably connect the body 3 and the connecting frame 2 without using tools, making it more convenient for maintenance personnel to install or remove the inverter.

[0035] Furthermore, the outer side of the elastic cylinder 61 is provided with a detection component 7 for detecting whether the connecting wire 4 is leaking current. The detection component 7 includes a limiting cylinder 71 located outside the elastic cylinder 61, which is slidably connected to the elastic cylinder 61. A connecting plate 72 is provided outside the limiting cylinder 71, which is rotatably connected to the limiting cylinder 71. A pressing block 73 is provided above the connecting plate 72 and is fixedly connected to it. The pressing block 73 itself is an insulator to improve the safety of maintenance personnel during inspection. A battery box 74 is provided at the bottom of the connecting plate 72 and is connected to it. Electrically connected, the battery box 74 has a warning light 75 inside and is electrically connected to it. A housing 18 is located on one side of the body 3 and is fixedly connected to it. The housing 18 is located above the connecting plate 72 and shields it. The housing 18 can effectively shield the area above the connecting plate 72 in rainy weather. The elastic cylinder 61 has multiple protruding strips 76 on its exterior and is fixedly connected to them. The limiting cylinder 71 has multiple square holes 77 inside for the protruding strips 76 to slide. The elastic cylinder 61 has multiple contact strips 78 inside, and one side of each contact strip 78 has a sticker... The stop bar 79 of the elastic cylinder 61 is fixedly connected to the contact bar 78 on one side. The top of the contact bar 78 is sloping, and the end of the contact bar 78 is aligned with the square hole 77 of the limiting cylinder 71. The height of the square hole 77 is less than the height of the contact bar 78 outside the elastic cylinder 61. A spring 8 is provided at the bottom of the connecting plate 72, and a fixing plate 9 is provided at the end of the spring 8. The two ends of the spring 8 are fixedly connected to the connecting plate 72 and the fixing plate 9, respectively. The fixing plate 9 is located on one side of the box body 5 and fixedly connected to it. Above the limiting cylinder 71 Multiple scraper blocks 10 are provided in a centrally symmetrical arrangement. The bottom of each scraper block 10 is fixedly connected to the limiting cylinder 71. The top of each scraper block 10 is in contact with the contact part of the connecting line 4 and the machine body 3. A transmission belt 11 is provided on the outside of the limiting cylinder 71. A rotating cylinder 12 is provided on the inner wall of the transmission belt 11. The transmission belt 11 can drive the limiting cylinder 71 and the rotating cylinder 12 to rotate simultaneously. A fixed shaft 13 is provided inside the rotating cylinder 12. The rotating cylinder 12 is rotatably connected to the fixed shaft 13. One end of the fixed shaft 13 is located above the connecting plate 72 and is fixedly connected to it.

[0036] During inverter maintenance, the rotating drum 12 located above the connecting plate 72 can be rotated first. The rotating drum 12 will drive the limiting drum 71 inside the transmission belt 11 to rotate, which in turn will cause the scraper block 10 located above the limiting drum 71 to rotate, and loosen the interface between the connecting cable 4 and the body 3. This will allow some of the melted rubber on the outer wall of the connecting cable 4 to detach from the bottom of the body 3, making it easier for the staff to maintain the inverter. After this, by pressing the pressing block 73, the connecting plate 72 will drive the limiting drum 71 to move downward along the outer wall of the elastic cylinder 61. During this process, the square hole 77 inside the limiting drum 71 will abut against the inclined part of the contact strip 78, gradually causing the contact strip 78 to move closer to the connecting cable 4, while blocking... The strip 79 will also block the elastic cylinder 61 and bring it closer to the connecting line 4. When the ends of multiple contact strips 78 are in contact with the outer wall of the connecting line 4, the contact strips 78, connecting line 4, limiting cylinder 71, connecting plate 72, battery box 74 and warning light 75 will form a closed circuit. At this time, the operator can judge whether the connecting line 4 is in a safe insulation state by observing whether the warning light 75 on the side of the battery box 74 is lit. If the warning light 75 is not lit, the pressing block 73 can be released, and the elastic force of the spring 8 will automatically drive the connecting plate 72 to return to its original position, so as to facilitate a secondary test of the insulation of the connecting line 4. By using the test component, the insulation state of the connecting line 4 can be effectively detected before the inverter is turned on, which further improves the safety of the operator.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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. A photovoltaic grid-connected inverter mechanism, comprising a bracket (1), a connecting frame (2) provided on one side of the bracket (1), a body (3) provided on one side of the connecting frame (2), and a connecting line (4) for connecting to a power supply box provided at the bottom of the body (3), characterized in that: The bottom of the body (3) is provided with a box (5) for collecting the connecting wires (4), and the inside of the box (5) is provided with a collection component (6) for fixing the connecting wires (4). The summarizing component (6) includes an elastic cylinder (61) located outside the connecting line (4). The elastic cylinder (61) has multiple support bars (62) inside. One side of the support bar (62) is fixedly connected to the connecting line (4). The surface of the elastic cylinder (61) has multiple through holes for gas to pass through. The outer side of the elastic cylinder (61) has multiple fixing bars for supporting it. The support bar (62) includes an expansion part (621). The expansion part is located inside the elastic cylinder (61). One side of the expansion part is in close contact with the inner wall of the elastic cylinder (61). The minimum expansion temperature of the expansion part is lower than the minimum expansion temperature of the outer wall of the connecting line (4). The elastic cylinder (61) is provided with a detection component (7) for detecting whether the connecting wire (4) is leaking current. The detection component (7) includes a limiting cylinder (71) located outside the elastic cylinder (61). The limiting cylinder (71) is provided with a connecting plate (72) outside. A pressing block (73) is provided above the connecting plate (72). A battery box (74) is provided at the bottom of the connecting plate (72). A warning light (75) is provided inside the battery box (74). The elastic cylinder (61) is provided with multiple protrusions (76) outside. The limiting cylinder (71) is provided with multiple square holes (77) for the protrusions (76) to slide inside. The elastic cylinder (61) is provided with multiple contact strips (78) inside. A stop strip (79) is provided on one side of the contact strip (78) and attached to the elastic cylinder (61).

2. The photovoltaic grid-connected inverter mechanism according to claim 1, characterized in that: The top of the contact strip (78) is sloping, and the end of the contact strip (78) is aligned with the square hole (77) of the limiting cylinder (71). The height of the square hole (77) is less than the height of the contact strip (78) outside the elastic cylinder (61).

3. The photovoltaic grid-connected inverter mechanism according to claim 1, characterized in that: The bottom of the connecting plate (72) is provided with a spring (8), and the end of the spring (8) is provided with a fixing plate (9). The fixing plate (9) is located on one side of the box (5) and is fixedly connected to it.

4. The photovoltaic grid-connected inverter mechanism according to claim 1, characterized in that: The limiting cylinder (71) has multiple scraper blocks (10) arranged in a centrally symmetrical manner above it. The limiting cylinder (71) has a transmission belt (11) on its outside. The inner wall of the transmission belt (11) has a rotating cylinder (12). The rotating cylinder (12) has a fixed shaft (13) inside it. One end of the fixed shaft (13) is located above the connecting plate (72) and is fixedly connected to it.

5. The photovoltaic grid-connected inverter mechanism according to claim 1, characterized in that: The fuselage (3) has an auxiliary mounting assembly (14) on one side, which is mounted on the connecting frame (2). The mounting assembly (14) includes a connecting box (141) on one side of the fuselage (3). The connecting box (141) has multiple handles (142) on its top. The connecting box (141) has a limiting block (143) that passes through the connecting box (141) and the connecting frame (2) inside. The limiting block (143) has a toothed plate (145) on one side. The toothed plate (145) has a gear (146) that meshes with it on one side. The gear (146) has a gear that meshes with it on one side. The gear plate 2 (147) meshes with each other. One side of the gear plate 2 (147) is provided with a limiting block 2 (144) that passes through the connecting box (141) and the connecting frame (2). The gear (146) is provided with a connecting shaft (148) inside. The connecting shaft (148) passes through the connecting box (141). The connecting shaft (148) is provided with a knob (149) outside. The outer wall of the knob (149) is provided with a connecting block (1410). The bottom of the connecting block (1410) is provided with a limiting post (1411). The connecting box (141) is provided with a limiting hole (1412) for the limiting post (1411) to be inserted.

6. The photovoltaic grid-connected inverter mechanism according to claim 5, characterized in that: A cylinder (15) is provided on one side of the gear (146). The cylinder (15) is located outside the connecting shaft (148). A torsion spring (16) is provided between the cylinder (15) and the connecting shaft (148).

7. The photovoltaic grid-connected inverter mechanism according to claim 1, characterized in that: The box body (5) is provided with a rotating plate (17) inside. The rotating plate (17) is rotatably connected to the box body (5) through a rotating shaft. The body (3) is provided with a shell (18) on one side. The shell (18) is located above the connecting plate (72) and covers it.

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