Protection structure of new energy photovoltaic inverter

Abstract

This application relates to the technical field of inverter protection, and in particular to a protective structure for a new energy photovoltaic inverter, including a protective casing, an inverter body, a cooling structure, and a buffer structure. The inverter body is housed within the protective casing; the cooling structure is housed within the inverter body and is used to cool the inverter body; the buffer structure is housed within the protective casing and connected to the cooling structure, and serves to buffer the inverter body. This application has the effect of reducing the possibility of inverter damage.

Description

Technical Field

[0001] This application relates to the technical field of inverter protection, and in particular to a protection structure for a new energy photovoltaic inverter. Background Technology

[0002] Currently, photovoltaic (PV) inverters convert the variable DC voltage generated by photovoltaic solar panels into AC power at the grid frequency. This AC power can be fed back into commercial power transmission systems or supplied to off-grid systems. Most PV inverters are installed directly outdoors, and prolonged exposure to wind and sun severely affects their normal operation. Currently, sealed enclosures are generally used to protect PV inverters.

[0003] Regarding the aforementioned technologies: Photovoltaic inverters are usually placed in sealed boxes to protect them. However, the simple structure of the sealed boxes makes them unable to provide shock protection for the photovoltaic inverters and can easily affect the heat dissipation of the inverters, ultimately leading to easy damage to the photovoltaic inverters. Summary of the Invention

[0004] To reduce the possibility of inverter damage, this application provides a protective structure for a new energy photovoltaic inverter.

[0005] This application provides a protection structure for a new energy photovoltaic inverter, which adopts the following technical solution:

[0006] A protection structure for a new energy photovoltaic inverter includes:

[0007] Protective casing;

[0008] The inverter body is housed within the protective housing;

[0009] A cooling structure is disposed within the inverter body, and the cooling structure is used to cool the inverter body.

[0010] A buffer structure is disposed inside the protective housing. The buffer structure is connected to the cooling structure and is used to buffer the inverter body.

[0011] By adopting the above technical solutions, the cooling structure can cool down the inverter body, making it less likely to be damaged due to excessive temperature. The buffer structure can buffer the inverter body, making it less likely to collide with the protective shell. Thus, through the cooperation of the cooling structure and the buffer structure, the possibility of damage to the inverter body is reduced.

[0012] Optionally, the inverter body includes a chassis shell and a circuit board disposed inside the chassis shell. The cooling structure includes a condenser pipe disposed inside the chassis shell and attached to the circuit board. Cooling oil flows through the condenser pipe, which is used to cool the circuit board.

[0013] By adopting the above technical solution, the cooling oil flows inside the condenser tube, which lowers the temperature of the condenser tube, thereby facilitating the cooling of the circuit board and reducing the possibility of damage to the inverter body due to excessive temperature.

[0014] Optionally, the cooling structure further includes a guide plate, and multiple condenser tubes are provided. The multiple condenser tubes are interconnected and respectively attached to the circuit board. The condenser tubes are provided with guide holes, and the guide holes on two adjacent condenser tubes are interconnected. The guide plate is disposed inside the condenser tube and close to the guide holes. The guide plate is inclined inside the condenser tube relative to the flow direction of the cooling oil.

[0015] By adopting the above technical solution, the baffle plate can guide the cooling oil, allowing it to impact the inner wall of the condenser tube. This helps reduce the possibility of a stable liquid film layer forming on the inner wall of the condenser tube, which would make it difficult for the cooling oil to exchange heat with the circuit board. Furthermore, the baffle plate can interfere with the flow of the cooling oil, allowing it to remain in the condenser tube for a longer time, thus facilitating heat exchange between the cooling oil and the circuit board.

[0016] Optionally, the buffer structure includes a circulation pump and a buffer assembly. The buffer assembly is connected to the circulation pump and the condenser pipe respectively. The circulation pump is used to drive the cooling oil to circulate between the buffer assembly and the condenser pipe. The buffer assembly is used to buffer the inverter body.

[0017] By adopting the above technical solution, the circulating pump can drive the cooling oil to circulate between the buffer assembly and the condenser tube, which facilitates the heat exchange between the cooling oil and the circuit board in the condenser tube and the heat dissipation of the cooling oil in the buffer assembly. The buffer assembly can also buffer the inverter body, thereby reducing the possibility of the inverter body colliding with the protective shell and causing damage to the inverter body.

[0018] Optionally, the buffer assembly includes a first pipe, a second pipe, a third pipe, and a double-ended connector disposed within the protective housing. The first pipe, the second pipe, and the third pipe are respectively located near different sides of the circumference of the housing. The first pipe, the second pipe, and the third pipe are sequentially connected through the double-ended connector. An elastic element is provided between the double-ended connector and the first pipe, the second pipe, and the third pipe. The first pipe and the third pipe are respectively connected to the condenser pipe, and the circulation pump is connected to the third pipe.

[0019] By adopting the above technical solution, elastic elements are respectively provided between the dual-connector and the first, second, and third pipes. This allows the elastic elements to act as a buffer when the first, second, or third pipe collides with the protective casing, reducing the possibility of damage to the first, second, or third pipe due to the collision. Furthermore, the first, second, and third pipes are respectively located near different sides of the casing, facilitating the protection of different sides of the casing. This further helps to reduce the possibility of the inverter body colliding with the protective casing and causing damage to the inverter body.

[0020] Optionally, a first slider is provided on the circumferential sidewalls at both ends of the double-connector. A first groove is provided on the inner wall of the end of the first pipe, the second pipe, and the third pipe that is connected to the double-connector. The first slider is slidably inserted into the first groove and fits against the inner wall of the first groove. The elastic element is provided in the first groove and is connected to the inner wall of the first groove and the first slider respectively.

[0021] By adopting the above technical solution, the first slider is inserted into the first slide groove, so that the first pipe, the second pipe, the third pipe and the double-connector can slide stably, and the elastic element is set in the first slide groove, thereby reducing the possibility of damage to the first pipe, the second pipe or the third pipe due to collision.

[0022] Optionally, the buffer assembly further includes a fourth pipe, which is connected to the third pipe and the condenser pipe respectively. A second slider is provided on the circumferential outer wall of the fourth pipe, and a second groove is provided on the inner wall of the third pipe. The second slider is slidably inserted into the second groove and fits against the inner wall of the second groove. The elastic element is provided in the second groove and is connected to the inner wall of the second groove and the second slider respectively.

[0023] By adopting the above technical solution, an elastic element is also provided between the fourth pipe and the third pipe, which facilitates the cooperation between the fourth pipe and the third pipe to protect one side of the inverter body, further reducing the possibility of the inverter body colliding with the protective shell and causing damage to the inverter body.

[0024] Optionally, a limiting member is provided inside the protective housing, and a limiting groove is formed on the inverter body. The limiting member is inserted into the limiting groove and is used to fix the inverter body inside the protective housing.

[0025] By adopting the above technical solution and setting the limiting component, the inverter body is less likely to slide inside the protective housing after being placed inside the protective housing.

[0026] Optionally, the limiting member is provided with a first elastic block, and the inner wall of the limiting groove is provided with a second elastic block, the first elastic block and the second elastic block engaging.

[0027] By adopting the above technical solution, the first elastic locking block and the second elastic locking block cooperate with each other, making it difficult for the inverter body to detach from the limiting component, thereby reducing the possibility of the inverter body detaching from the protective shell, and thus helping to stably install the inverter body inside the protective shell.

[0028] Optionally, the protective housing is provided with ventilation holes.

[0029] By adopting the above technical solution, ventilation holes are provided on the protective casing to facilitate the circulation of air between the inside and outside of the protective casing, thereby facilitating heat dissipation of the inverter body and making the inverter body less prone to damage due to excessive temperature.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. Through the cooperation of the cooling structure and the buffer structure, the inverter body is less likely to accumulate too much heat and is less likely to collide with the protective shell, thereby reducing the possibility of damage to the inverter body.

[0032] 2. Through the cooperation of the condenser, baffle, circulating pump and buffer assembly, the cooling oil can impact the inner wall of the condenser when it circulates between the condenser and the buffer assembly. This helps to reduce the possibility of a stable liquid film layer forming on the inner wall of the condenser, making it difficult for the cooling oil to exchange heat with the circuit board. It also helps to allow the cooling oil to stay in the condenser for a longer time, thus facilitating the cooling of the circuit board.

[0033] 3. Through the cooperation of the first pipe, the second pipe, the third pipe, the fourth pipe, the double-connector and the elastic element, the first pipe, the second pipe, the third pipe and the fourth pipe can protect different sides of the inverter body respectively, thereby reducing the possibility of the inverter body being damaged due to expansion between the inverter body and the protective shell.

[0034] 4. Through the cooperation of the limiting component and the elastic block, the inverter body is not easy to move relative to the protective shell, thus making it easy to stably install the inverter body inside the protective shell. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of the protection structure of a new energy photovoltaic inverter according to an embodiment of this application.

[0036] Figure 2 This is an exploded structural diagram of the protective structure of a new energy photovoltaic inverter according to an embodiment of this application.

[0037] Figure 3 yes Figure 1 A cross-sectional view along line AA.

[0038] Figure 4 yes Figure 3 A magnified structural diagram at point B in the middle.

[0039] Figure 5 yes Figure 3 A magnified structural diagram at point C.

[0040] Figure 6 This is a schematic diagram of the inverter body and buffer structure.

[0041] Explanation of reference numerals in the attached figures:

[0042] 1. Protective outer casing; 11. Mounting door panel; 12. Limiting component; 121. First elastic locking block; 13. Ventilation hole; 2. Inverter body; 21. Chassis outer casing; 211. Limiting groove; 212. Second elastic locking block; 22. Circuit board; 3. Cooling structure; 31. Condenser pipe; 311. Guide hole; 32. Guide plate; 4. Buffer structure; 41. Circulation pump; 42. Buffer assembly; 421. First pipe; 422. Second pipe; 423. Third pipe; 4231. Second slide groove; 424. Fourth pipe; 4241. Second slider; 425. Double connector; 4251. First slider; 426. Elastic component; 427. First slide groove. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0044] This application discloses a protection structure for a new energy photovoltaic inverter.

[0045] Reference Figure 1 , Figure 2 and Figure 3 The protective structure of the new energy photovoltaic inverter includes a protective shell 1, an inverter body 2, a cooling structure 3, and a buffer structure 4. The inverter body 2 is installed inside the protective shell 1, and the cooling structure 3 is located inside the inverter body 2 to cool it. The buffer structure 4 is connected to the cooling structure 3 and is located outside the inverter body 2. The buffer structure 4 cushions the inverter body 2, preventing it from accumulating excessive heat and from colliding with the protective shell 1, thus reducing the possibility of damage to the inverter body 2.

[0046] Reference Figure 2 and Figure 3 The inverter body 2 includes a chassis shell 21 and a circuit board 22 disposed inside the chassis shell 21. The cooling structure 3 includes condenser pipes 31 and guide plates 32. Multiple condenser pipes 31 are provided, and the multiple condenser pipes 31 are evenly distributed on the same plane and connected to each other.

[0047] In this embodiment, the condenser tubes 31 are disposed inside the chassis shell 21, and multiple condenser tubes 31 are respectively attached to the circuit board 22. Cooling oil flows inside the condenser tubes 31, and the cooling oil can exchange heat with the circuit board 22, thereby facilitating the cooling of the circuit board 22 and reducing the possibility of excessive heat accumulation on the circuit board 22, which could lead to damage to the circuit board 22.

[0048] In this embodiment, three adjacent condenser tubes 31 are grouped together, and the multiple condenser tubes 31 are divided into two groups. The three condenser tubes 31 in the same group are provided with flow guide holes 311 on their side walls that are close to each other, and the adjacent flow guide holes 311 on two adjacent condenser tubes 31 are interconnected, so as to facilitate the flow of cooling oil between the three condenser tubes 31.

[0049] Reference Figure 3 The guide plate 32 is fixedly connected to the inner wall of the condenser tube 31. The guide plate 32 is set close to the guide hole 311 and is inclined in the condenser tube 31 relative to the flow direction of the cooling oil. This facilitates the guidance of the cooling oil to impact the inner wall of the condenser tube 31, thereby reducing the possibility of a stable liquid film layer forming on the inner wall of the condenser tube 31, which would make it difficult for the cooling oil to exchange heat with the circuit board 22.

[0050] In this embodiment, the adjacent guide plates 32 on two adjacent condenser tubes 31 have the same tilt angle, which facilitates the introduction of cooling oil from one condenser tube 31 into the other condenser tube 31, and causes the introduced cooling oil to impact the inner wall of the condenser tube 31, further reducing the possibility of the cooling oil forming a stable liquid film layer on the inner wall of the condenser tube 31.

[0051] Reference Figure 3 In this embodiment, there are two buffer structures 4. The two buffer structures 4 are symmetrically arranged with respect to the chassis shell 21, and the two buffer structures 4 are respectively connected to two sets of condenser pipes 31, so that the two buffer structures 4 can jointly protect the chassis shell 21.

[0052] Reference Figure 3 The buffer structure 4 includes a circulating pump 41 and a buffer assembly 42, wherein the buffer assembly 42 is connected to the circulating pump 41 and the condenser pipe 31 respectively, so that the circulating pump 41 can drive the cooling oil to circulate between the buffer assembly 42 and the condenser pipe 31.

[0053] Reference Figure 3 and Figure 4 The buffer assembly 42 includes a first pipe 421, a second pipe 422, a third pipe 423, a fourth pipe 424, a double-ended connector 425, and an elastic element 426. The first pipe 421 and the second pipe 422 are connected via the double-ended connector 425, the second pipe 422 and the third pipe 423 are connected via the double-ended connector 425, and the fourth pipe 424 is connected to the end of the third pipe 423 furthest from the second pipe 422.

[0054] In this embodiment, the first pipe 421, the second pipe 422, and the third pipe 423 are respectively arranged close to different sides of the chassis shell 21 around the perimeter, and the fourth pipe 424 and the third pipe 423 are located on the same side of the chassis shell 21. This allows the first pipe 421, the second pipe 422, the third pipe 423, and the fourth pipe 424 to protect the chassis shell 21, which helps to reduce the possibility of the chassis shell 21 directly colliding with the protective shell 1.

[0055] Reference Figure 2 and Figure 3 In this embodiment, the end of the first pipe 421 away from the second pipe 422 and the end of the fourth pipe 424 away from the third pipe 423 are respectively connected to the condenser pipe 31, and the circulation pump 41 is installed on the third pipe 423, so that the cooling oil can be driven by the circulation pump 41 to circulate among the third pipe 423, the second pipe 422, the first pipe 421, the condenser pipe 31 and the fourth pipe 424.

[0056] When the cooling oil is inside the condenser 31, the cooling oil exchanges heat with the circuit board 22, which causes the temperature of the circuit board 22 to decrease and the temperature of the cooling oil to increase.

[0057] When the cooling oil is located in the first pipe 421, the second pipe 422, the third pipe 423 or the fourth pipe 424, the cooling oil exchanges heat with the outside air, thereby reducing the temperature of the cooling oil and facilitating the cooling oil to exchange heat with the circuit board 22 again.

[0058] Reference Figure 3 and Figure 4 In this embodiment, a first groove 427 is provided on the inner wall of the end where the first pipe 421, the second pipe 422 and the third pipe 423 are connected to the double connector 425 along the flow direction of the cooling oil, and a first slider 4251 is fixedly connected to the circumferential outer wall of the double connector 425.

[0059] When the first pipe 421, the second pipe 422, and the third pipe 423 are respectively connected to the double-connector 425, the first slider 4251 is slidably inserted into the first groove 427, and the first slider 4251 is in contact with the inner wall of the first groove 427, thereby facilitating stable sliding between the first pipe 421, the second pipe 422, the third pipe 423 and the double-connector 425. Furthermore, the cooling oil lubricates the first slider 4251, further enabling smoother sliding between the first pipe 421, the second pipe 422, the third pipe 423 and the double-connector 425.

[0060] Furthermore, a sealing ring (not shown in the figure) can be provided between the first pipe 421, the second pipe 422, the third pipe 423 and the double-connector 425 to seal the connection between the first pipe 421, the second pipe 422, the third pipe 423 and the double-connector 425, thereby reducing the possibility of cooling oil in the first pipe 421, the second pipe 422 and the third pipe 423 flowing out of the pipes.

[0061] Reference Figure 3 and Figure 4 In this embodiment, multiple elastic elements 426 are provided. One elastic element 426 is disposed in a first sliding groove 427 and the elastic element 426 is adapted to the design of the first sliding groove 427. The elastic element 426 is fixedly connected to the inner wall of the first sliding groove 427 and the first slider 4251 respectively. Thus, when the first pipe 421, the second pipe 422, the third pipe 423 and the double connector 425 slide, the elastic element 426 can buffer the first pipe 421, the second pipe 422, the third pipe 423 and the double connector 425.

[0062] Reference Figure 3 and Figure 5A second groove 4231 is formed on the inner wall of the end of the third pipe 423 away from the second pipe 422 along the flow direction of the cooling oil. A second slider 4241 is fixedly connected to the circumferential outer wall of the fourth pipe 424. When the fourth pipe 424 is connected to the third pipe 423, the second slider 4241 slides and is inserted into the second groove 4231, and the second slider 4241 is in contact with the inner wall of the second groove 4231.

[0063] The elastic element 426 is also disposed in the second slide groove 4231, and the elastic element 426 is adapted to the design of the second slide groove 4231. The elastic element 426 is fixedly connected to the inner wall of the second slide groove 4231 and the second slider 4241 respectively, so that when the fourth pipe 424 and the third pipe 423 slide, the elastic element 426 can buffer the fourth pipe 424 and the third pipe 423.

[0064] Furthermore, a sealing ring can be installed between the fourth pipe 424 and the third pipe 423 to seal the connection between the fourth pipe 424 and the third pipe 423, thereby reducing the possibility of cooling oil flowing out of the pipes.

[0065] In other embodiments, the fourth pipe 424 can also be replaced by a double connector 425, so that the third pipe 423 is connected to the condenser pipe 31 through the double connector 425, and an elastic element 426 is also provided between the double connector 425 and the third pipe 423 for buffering.

[0066] Reference Figure 2 , Figure 3 and Figure 4 When the protective housing 1 is impacted or vibrated, causing the inverter body 2 to shake inside the protective housing 1, the first pipe 421, the second pipe 422, the third pipe 423, the fourth pipe 424, the double connector 425, and the elastic element 426 can cooperate with each other to protect and buffer the inverter body 2, making it less likely for the inverter body 2 to collide directly with the protective housing 1, thereby reducing the possibility of damage to the inverter body 2.

[0067] When the first pipe 421, the second pipe 422, or the third pipe 423 slides relative to the double-joint 425, or when the fourth pipe 424 slides relative to the third pipe 423, the inner wall of the pipe can impact the cooling oil, thereby reducing the possibility of a stable liquid film layer forming on the inner wall of the pipe. Furthermore, when the impact force generated by the inner wall of the pipe on the cooling oil is roughly in the same direction as the flow of the cooling oil, the flow velocity of the cooling oil increases, which in turn allows the cooling oil flowing into the condenser tube 31 to exert a greater impact on the inner wall of the condenser tube 31, further reducing the possibility of a stable liquid film layer forming on the inner wall of the condenser tube 31.

[0068] Reference Figure 2 and Figure 6 The front end of the protective shell 1 is rotatably connected to the mounting door panel 11 via a hinge, and the inner cavity of the protective shell 1 is fixedly connected to a limiting member 12. In this embodiment, two limiting members 12 are provided, and the two limiting members 12 are evenly distributed inside the protective shell 1.

[0069] The outer wall of the chassis 21 has a limiting groove 211, and the number of limiting grooves 211 is the same as the number of limiting members 12. When the chassis 21 is placed inside the protective shell 1, the limiting members 12 are inserted into the limiting grooves 211.

[0070] Reference Figure 2 and Figure 6 A first elastic locking block 121 is fixedly connected to the limiting member 12, and a second elastic locking block 212 is fixedly connected to the inner wall of the limiting groove 211. When the limiting member 12 is inserted into the limiting groove 211, the first elastic locking block 121 and the second elastic locking block 212 engage, thereby reducing the possibility of the inverter body 2 detaching from the protective shell 1, and thus facilitating the stable installation of the inverter body 2 inside the protective shell 1.

[0071] Reference Figure 2 Ventilation holes 13 are symmetrically provided on the left and right sides of the inner cavity of the protective shell 1 to facilitate the circulation of air between the inside and outside of the protective shell 1, thereby facilitating heat dissipation of the inverter body 2 and the buffer structure 4, and further reducing the possibility of damage to the inverter body 2 due to excessive temperature.

[0072] The implementation principle of the protective structure for a new energy photovoltaic inverter according to an embodiment of this application is as follows: a first pipe 421, a second pipe 422, a third pipe 423, a fourth pipe 424, and a double-connector 425 are arranged around the inverter body 2. A circulation pump 41 is provided to drive the cooling oil to circulate between the third pipe 423, the second pipe 422, the first pipe 421, the condenser pipe 31, and the fourth pipe 424.

[0073] Therefore, when the inverter body 2 is installed inside the protective housing 1, the first pipe 421, the second pipe 422, the third pipe 423, the fourth pipe 424 and the double connector 425 can work together to buffer and protect the inverter body 2, and the cooling oil can cool and protect the inverter body 2, thereby reducing the possibility of damage to the inverter body 2.

[0074] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protection structure for a new energy photovoltaic inverter, characterized in that, include: Protective outer casing (1); The inverter body (2) is disposed inside the protective housing (1). The inverter body (2) includes a chassis housing (21) and a circuit board (22) disposed inside the chassis housing (21). A cooling structure (3) is disposed inside the inverter body (2). The cooling structure (3) is used to cool the inverter body (2). The cooling structure (3) includes a condenser tube (31). The condenser tube (31) is disposed inside the chassis shell (21) and is attached to the circuit board (22). Cooling oil flows inside the condenser tube (31). The condenser tube (31) is used to cool the circuit board (22). A buffer structure (4) is provided inside the protective housing (1). The buffer structure (4) is connected to the cooling structure (3). The buffer structure (4) is used to buffer the inverter body (2). The buffer structure (4) includes a circulation pump (41) and a buffer assembly (42). The buffer assembly (42) is connected to the circulation pump (41) and the condenser pipe (31) respectively. The circulation pump (41) is used to drive the cooling oil to circulate between the buffer assembly (42) and the condenser pipe (31). The buffer assembly (42) is used to buffer the inverter body (2). The buffer assembly (42) includes a first pipe (421), a second pipe (422), a third pipe (423), and a double-connector (425) disposed within the protective housing (1). The first pipe (421), the second pipe (422), and the third pipe (423) are respectively located near different sides of the chassis housing (21) around the perimeter. The first pipe (421), the second pipe (422), and the third pipe (423) are connected sequentially through the double-connector (425). An elastic element (426) is provided between the double-connector (425) and the first pipe (421), the second pipe (422), and the third pipe (423). The first pipe (421) and the third pipe (423) are respectively connected to the condenser pipe (31), and the circulating pump (41) is connected to the third pipe (423).

2. The protection structure of the new energy photovoltaic inverter according to claim 1, characterized in that, The cooling structure (3) also includes a guide plate (32). Multiple condenser tubes (31) are provided. The multiple condenser tubes (31) are connected to each other and respectively attached to the circuit board (22). A guide hole (311) is opened on the condenser tube (31). The guide holes (311) on two adjacent condenser tubes (31) are connected to each other. The guide plate (32) is disposed in the condenser tube (31) and close to the guide hole (311). The guide plate (32) is inclined in the condenser tube (31) relative to the flow direction of the cooling oil.

3. The protection structure of the new energy photovoltaic inverter according to claim 1, characterized in that, The two ends of the double-connector (425) are respectively provided with a first slider (4251) on the circumferential sidewall. The inner wall of the end where the first pipe (421), the second pipe (422), and the third pipe (423) are connected to the double-connector (425) is provided with a first groove (427). The first slider (4251) is slidably inserted into the first groove (427) and fits against the inner wall of the first groove (427). The elastic element (426) is provided in the first groove (427) and is connected to the inner wall of the first groove (427) and the first slider (4251) respectively.

4. The protection structure of the new energy photovoltaic inverter according to claim 1, characterized in that, The buffer assembly (42) further includes a fourth pipe (424), which is connected to the third pipe (423) and the condenser pipe (31) respectively. A second slider (4241) is provided on the circumferential outer wall of the fourth pipe (424), and a second groove (4231) is provided on the inner wall of the third pipe (423). The second slider (4241) is slidably inserted into the second groove (4231) and fits against the inner wall of the second groove (4231). An elastic element (426) is provided in the second groove (4231), and the elastic element (426) is connected to the inner wall of the second groove (4231) and the second slider (4241) respectively.

5. The protection structure of the new energy photovoltaic inverter according to claim 1, characterized in that, The protective housing (1) is provided with a limiting member (12), and the inverter body (2) is provided with a limiting groove (211). The limiting member (12) is inserted into the limiting groove (211) and the limiting member (12) is used to fix the inverter body (2) inside the protective housing (1).

6. The protection structure of the new energy photovoltaic inverter according to claim 5, characterized in that, The limiting member (12) is provided with a first elastic block (121), and the inner wall of the limiting groove (211) is provided with a second elastic block (212). The first elastic block (121) and the second elastic block (212) are engaged.

7. The protection structure of the new energy photovoltaic inverter according to claim 1, characterized in that, The protective shell (1) has ventilation holes (13).

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