Protective structure of photovoltaic inverter for new energy

By designing a protective structure connected to the photovoltaic inverter body, forming a housing cavity for accommodating the terminals and communicating with the outside world through the heat dissipation port, the problem of reduced life of the photovoltaic inverter terminals and cable ends is solved, and effective protection and good heat dissipation effect is achieved.

CN222868772UActive Publication Date: 2025-05-13HUADIAN CHONGQING NEW ENERGY CO LTD FENGJIE BRANCH +2
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Patent Information

Application Number
CN202421840582.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-13
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

Due to the exposure of existing photovoltaic inverters, the terminals and cable ends of existing photovoltaic inverters are easily affected by external environment, resulting in a reduced life.

Method used

A protective structure of a photovoltaic inverter for new energy is designed, connected to the photovoltaic inverter body through a protective component, forming a housing cavity for accommodating the terminals, and is connected to the outside world through a heat dissipation port.

Benefits of technology

Effectively protect the terminals and cable ends, avoid external environment influence, extend the service life of the photovoltaic inverter and its terminal positions, and maintain good heat dissipation effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a protection structure of a photovoltaic inverter for new energy, the photovoltaic inverter comprises a photovoltaic inverter body and a plurality of wiring terminals located on the photovoltaic inverter body, the protection structure comprises a protection assembly, and the protection assembly is connected with the photovoltaic inverter body; the protection assembly is enclosed to form an accommodating cavity for accommodating the wiring terminal, one side, far away from the photovoltaic inverter body, of the accommodating cavity is communicated with the outside through a heat dissipation opening, and the photovoltaic inverter has the advantages of having both a protection effect and a heat dissipation effect.
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Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic inverters, in particular to a protective structure of a photovoltaic inverter for new energy. Background Art

[0002] Photovoltaic inverters are commonly used to convert the variable DC voltage generated by photovoltaic solar panels into AC power at the mains frequency. Photovoltaic inverters are indispensable in solar power generation systems, and the efficiency of the inverter is an important factor in determining the capacity of solar cells and batteries.

[0003] Existing photovoltaic inverters are usually installed on outdoor mounting frames, and their wiring terminals are usually exposed to the outside. Affected by the external environment and the heat generated during the power transmission of the cables, the life of the wiring terminals and the cable ends connected to them will be reduced.

[0004] Therefore, it is urgent for those skilled in the art to provide a protective structure for a photovoltaic inverter for new energy, which can provide protection without affecting the heat dissipation effect, so as to increase the service life of the photovoltaic inverter and its terminal positions. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing a protective structure for a photovoltaic inverter for new energy.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A protective structure for a photovoltaic inverter for new energy, the photovoltaic inverter comprising a photovoltaic inverter body and a plurality of wiring terminals on the photovoltaic inverter body, the protective structure comprising a protective component connected to the photovoltaic inverter body; the protective component encloses a receiving cavity for receiving the wiring terminals, and a side of the receiving cavity away from the photovoltaic inverter body is interconnected with the outside through a heat dissipation port.

[0008] Preferably, the protective component includes a fixed part and a detachable part; the fixed part is fixedly connected to the photovoltaic inverter body; the detachable part has a first state in which it is fixedly connected to the fixed part to enclose and form the accommodating cavity; the detachable part also has a second state in which it is detached from the fixed part to expose the wiring terminal.

[0009] Preferably, the protective assembly also includes a sliding guide portion; the sliding guide portion includes a first guide member and a second guide member, the first guide member is fixedly connected to the fixed portion, and the second guide member is fixedly connected to the removable portion; when the second guide member is fixedly connected to the first guide member through a locking member, the removable portion is in the first state; after the second guide member slides along the first guide member to be separated from the first guide member, the removable portion is in the second state.

[0010] Preferably, the fixed part includes a first plate, which is fixedly connected to the photovoltaic inverter body; the detachable part includes a second plate, a third plate and a fourth plate, the second plate is arranged opposite to the first plate, one end of the second plate is fixedly connected to the third plate, and the other end is fixedly connected to the fourth plate; when the detachable part is in the first state, the ends of the third plate and the fourth plate away from the second plate are both against the first plate.

[0011] Preferably, the protection component is provided with an observation portion for observing the wiring terminal.

[0012] Preferably, the observation portion includes an observation port and a door panel; the observation port is arranged on the protective assembly; the door panel is hinged to the protective assembly, and the side of the door panel away from its hinged position can be locked with the protective assembly through a locking assembly so that the door panel covers the observation port; when the locking assembly is unlocked, the door panel can rotate around the hinged position so that the observation port connects the accommodating cavity with the outside world.

[0013] Preferably, a handle is provided on a side of the door panel away from its hinged position.

[0014] Preferably, the locking assembly includes a locking groove, a sliding groove, a locking tongue and an elastic member; the locking groove is located on the door panel, the sliding groove is located on the protective assembly, and the locking tongue is slidably installed in the sliding groove; when the door panel and the protective assembly are mutually locked through the locking assembly, the locking tongue is inserted into the locking groove; one end of the elastic member is fixedly connected to the locking tongue, and the other end is connected to the side wall of the sliding groove to apply a thrust to the locking tongue toward the locking groove.

[0015] Preferably, the protection structure further comprises a cover assembly; the cover assembly is detachably mounted on a side of the photovoltaic inverter body away from the protection assembly.

[0016] Preferably, the cover plate assembly includes a first connecting frame, a second connecting frame, a support frame, and a cover plate; a plurality of first connecting frames are provided, and all of the first connecting frames are fixedly connected to the photovoltaic inverter body; the second connecting frames are arranged one-to-one with the first connecting frames, and are detachably connected to the first connecting frames arranged correspondingly thereto; the support frame connects all the second connecting frames; the cover plate is installed on the support frame, and along the direction of the cover plate assembly toward the protective assembly, the projection area of ​​the cover plate covers the projection area of ​​the photovoltaic inverter body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The protective structure of a photovoltaic inverter for new energy provided in the above technical solution connects the protective component to the photovoltaic inverter body, so that during the use and installation of the photovoltaic inverter, there is no need to install the protective component separately. On the one hand, it can simplify the installation process, and on the other hand, it can avoid installation interference or loss of accessories when the protective component and the photovoltaic inverter are installed separately. The protective component encloses the accommodating cavity for accommodating the wiring terminal, which can prevent the wiring terminal and the cable end connected to the wiring terminal from being affected by the external environment (such as rain, light, foreign matter, etc.) and causing aging, avoid affecting the power transmission effect of the photovoltaic inverter, and extend the service life of the photovoltaic inverter. In addition, the side of the accommodating cavity away from the photovoltaic inverter body is connected to the outside world through the heat dissipation port. On the one hand, the setting of the heat dissipation port is conducive to the heat dissipation inside the accommodating cavity, avoiding the accelerated aging of the wiring terminal or the cable located in the accommodating cavity due to the increase in temperature, thereby extending its service life. On the other hand, it can increase the distance between the heat dissipation port and the photovoltaic inverter body, avoiding the heat dissipation process from affecting the photovoltaic inverter itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0022] Figure 3 for Figure 2 Schematic cross-section along section AA.

[0023] Figure 4 It is a schematic diagram of the position of the fixing part when the detachable part is in the second state.

[0024] Figure 5 It is a schematic structural diagram when the detachable part is in the second state.

[0025] Figure 6 for Figure 1 Schematic diagram of the structure from another perspective.

[0026] Figure 7 for Figure 6 A magnified schematic diagram of position B in the middle.

[0027] Figure 8 for Figure 7 Schematic cutaway view along section CC.

[0028] Fig. 9 for Figure 2 Schematic cutaway view along section DD.

[0029] Fig.10 for Fig. 9 Enlarged schematic diagram of position E in the middle.

[0030] Fig.11 It is a structural schematic diagram of the cover plate assembly (excluding the first connecting frame).

[0031] Description of reference numerals:

[0032] 100. PV inverter body; 200. Wiring terminal; 1. Protection assembly; 11. Fixed portion; 111. First board; 12. Removable portion; 121. Second board; 1211. Second board; 1212. Second board; 122. Third board; 123. Fourth board; 13. Sliding guide portion; 131. First guide member; 132. Second guide member; 2. Accommodating cavity; 3. Heat dissipation port; 4. Observation portion; 41. Observation port; 42. Door panel; 421. Handle; 5. Locking assembly; 51. Locking groove; 52. Slide groove; 53. Lock tongue; 531. Push block; 54. Elastic member; 6. Cover assembly; 61. First connecting frame; 62. Second connecting frame; 63. Support frame; 64. Cover. DETAILED DESCRIPTION

[0033] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figures 1 to 11 , the embodiment of the utility model provides a protective structure for a photovoltaic inverter for new energy. Among them, the photovoltaic inverter includes a photovoltaic inverter body 100, and a number of wiring terminals 200 located on the photovoltaic inverter body 100. Among them, the protective structure includes a protective component 1, and the protective component 1 is connected to the photovoltaic inverter body 100, so that during the use and installation of the photovoltaic inverter, there is no need to install the protective component 1 separately. On the one hand, it can simplify the installation process, and on the other hand, it can avoid installation interference or loss of accessories when the protective component 1 and the photovoltaic inverter body 100 are installed separately. The protective component 1 encloses a receiving cavity 2 for accommodating the wiring terminal 200, which can prevent the wiring terminal 200 and the cable end connected to the wiring terminal 200 from being affected by the external environment (such as rain, light, foreign matter, etc.) and causing aging, thereby avoiding affecting the power transmission effect of the photovoltaic inverter and extending the service life of the photovoltaic inverter. In addition, the side of the accommodating cavity 2 away from the photovoltaic inverter body 100 is interconnected with the outside through the heat dissipation port 3. On the one hand, the setting of the heat dissipation port 3 is conducive to the heat dissipation inside the accommodating cavity 2, thereby preventing the terminal 200 or the cable located in the accommodating cavity 2 from aging faster due to the increase in temperature, thereby further extending the service life of the terminal 200. On the other hand, by increasing the distance between the heat dissipation port 3 and the photovoltaic inverter body 100, the heat dissipation process can be prevented from affecting the photovoltaic inverter itself.

[0037] See also Figures 2 to 5In order to avoid the setting of the protection component 1 affecting the daily maintenance of the terminal block 200 and the end of the cable connected to it, in the present embodiment, the protection component 1 includes a fixed portion 11 and a detachable portion 12, wherein the fixed portion 11 is fixedly connected to the photovoltaic inverter body 100; the detachable portion 12 has a first state in which it is fixedly connected to the fixed portion 11 to enclose and form the accommodating cavity 2; the detachable portion 12 also has a second state in which it is detached from the fixed portion 11 to expose the terminal block 200.

[0038] It can be known that when the detachable part 12 is in the first state, the detachable part 12 is fixedly connected to the fixed part 11, and the inner side wall of the detachable part 12 and the inner side wall of the fixed part 11 both form the inner side wall of the accommodating cavity 2, which is then blocked by the fixed part 11 and the detachable part 12, thereby preventing rain, dust, and foreign matter from the outside from directly affecting the position of the connecting terminal 200. When the detachable part 12 is in the second state, the detachable part 12 is separated from the fixed part 11, and the accommodating cavity 2 is open, thereby facilitating maintenance.

[0039] In order to facilitate the fixed connection between the removable part 12 and the fixed part 11, in the present embodiment, the protective component 1 also includes a sliding guide part 13, and the sliding guide part 13 includes a first guide member 131 and a second guide member 132, the first guide member 131 is fixedly connected to the fixed part 11, and the second guide member 132 is fixedly connected to the removable part 12; when the second guide member 132 is fixedly connected to the first guide member 131 by a locking member, the removable part 12 is in the first state; after the second guide member 132 slides along the first guide member 131 (Z1 direction) until it is separated from the first guide member 131, the removable part 12 is in the second state.

[0040] Since the photovoltaic inverter is usually installed vertically, for the convenience of explanation, in the vertical direction, the side of the photovoltaic inverter body 100 with the terminal 200 is referred to as the "lower", and the side of the photovoltaic inverter body 100 away from the terminal 200 is referred to as the "upper", and in the horizontal direction, the side close to the terminal 200 is referred to as the "inside", and the side away from the terminal 200 is referred to as the "outside".

[0041] In this embodiment, the first guide member 131 is fixedly mounted on the inner side of the fixed part 11 and is fixedly connected to the lower end face of the photovoltaic inverter body 100, and the second guide member 132 is fixedly mounted on the inner side face of the detachable part 12. This arrangement enables the first guide member 131 and the second guide member 132 to be located on the side of the protective component 1 close to the accommodating cavity 2 after being assembled. The first guide member 131 is provided with a guide groove that cooperates with the second guide member 132. In order to facilitate the disassembly and assembly of the detachable part 12, the first guide member 131 can provide a certain support to the second guide member 132 in the vertical direction. The guide groove on the first guide member 131 can be set as a T-shaped groove, and the opening of the T-shaped groove faces the horizontal direction, so that the lower end face of the T-shaped groove can abut against the second guide member 132 and support the second guide member 132.

[0042] It is worth mentioning that the positions and structures of the first guide member 131 and the second guide member 132 can be set in various ways, so that the two can slide relative to each other to complete the disassembly and assembly of the detachable part 12, and during the sliding process, the second guide member 132 can be supported by the first guide member 131 in the direction of gravity. For example, the guide groove can be set to a special-shaped groove, a triangular groove or a trapezoidal groove, etc., and the second guide member 132 can be set on the outer wall or the upper wall of the detachable part 12.

[0043] Specifically, in this embodiment, the fixed portion 11 includes a first plate 111, one end of the first plate 111 is fixedly connected to the photovoltaic inverter body 100, and the other end extends to a side away from the photovoltaic inverter body 100. The detachable portion 12 includes a second plate 121, a third plate 122 and a fourth plate 123, the second plate 121 is arranged opposite to the first plate 111, one end of the second plate 121 is fixedly connected to the third plate 122, and the other end is fixedly connected to the fourth plate 123; when the detachable portion 12 is in the first state, the ends of the third plate 122 and the fourth plate 123 away from the second plate 121 are both against the first plate 111. At this time, the lower end surface of the first plate 111, the lower end surface of the second plate 121, the lower end surface of the third plate 122, and the lower end surface of the fourth plate 123 enclose the heat dissipation port 3. Of course, in other embodiments, the heat dissipation vents 3 may also be directly opened on the first plate 111 , the second plate 121 , the third plate 122 , and the fourth plate 123 , and a bottom plate may be provided to connect the second plate 121 , the third plate 122 , and the fourth plate 123 , or a bottom plate may be provided to connect the first plate 111 .

[0044] Furthermore, a second guide member 132 is provided on the inner wall surface of the third plate 122 and the fourth plate 123 to facilitate the assembly and disassembly of the detachable portion 12 .

[0045] See also Figures 1 to 3 In order to facilitate daily observation of the connection status of the wiring terminal 200 in the accommodating cavity 2, in this embodiment, an observation portion 4 for observing the wiring terminal 200 is provided on the protection component 1.

[0046] Specifically, the observation part 4 includes an observation port 41 and a door panel 42; the observation port 41 is arranged on the second plate 121 (protection component 1) of the protection component 1, and the second plate 121 is divided into two parts, namely, a first plate 1211 and a second plate 1212; wherein, one end of the door panel 42 is hinged to the first plate 1211 (protection component 1), and the side of the door panel 42 away from its hinge position can be mutually locked with the second plate 1212 (protection component 1) through the locking component 5, so that the door panel 42 covers the observation port 41; when the locking component 5 is unlocked, the door panel 42 can rotate around the hinge position, so that the observation port 41 connects the accommodating chamber 2 with the outside. Of course, in other embodiments, the observation port 41 can also be directly opened on the second plate 121, and the second plate 121 is kept as an integral structure; the observation port 41 can also be arranged on the first plate 111, the third plate 122, and the fourth plate 123; the door panel 42 structure can also be omitted, and a transparent glass can be directly arranged on the observation port 41.

[0047] Furthermore, in this embodiment, in order to facilitate the opening and closing of the door panel 42, a handle 421 is provided on one side of the door panel 42 away from its hinged position.

[0048] The locking assembly 5 can be set to a variety of structures, as long as it can achieve locking and unlocking of the door panel 42 and the second panel 121 (protective assembly 1).

[0049] See also Figures 6 to 8 In this embodiment, the locking assembly 5 includes a locking groove 51, a slide groove 52 and a lock tongue 53. The locking groove 51 is located on the door panel 42, the slide groove 52 is located on the second plate 121 (protection assembly 1), and the lock tongue 53 is slidably installed in the slide groove 52. When the door panel 42 is locked with the protection assembly 1 through the locking assembly 5, the lock tongue 53 is inserted into the locking groove 51. Correspondingly, when the lock tongue 53 is separated from the locking groove 51, the door panel 42 can be rotated.

[0050] It is worth noting that in the present embodiment, the “locking groove 51 is located on the door panel 42” means that a first connection seat is provided on the door panel 42, and the locking groove 51 is opened on the first connection seat. This method is convenient for processing. In other embodiments, the “locking groove 51 is located on the door panel 42” can also be adopted by directly opening the locking groove 51 on the door panel 42. Similarly, in the present embodiment, the “slide groove 52 is located on the second plate 121 (protective component 1)” means that a second connection seat is provided on the second plate 121, and the slide groove 52 is provided on the second connection seat. In other embodiments, the “slide groove 52 is located on the second plate 121 (protective component 1)” can also be adopted by directly providing the slide groove 52 on the second plate 121.

[0051] Furthermore, in order to facilitate pushing the locking tongue 53 , a pushing block 531 may be fixedly disposed on the upper end of the locking tongue 53 .

[0052] Furthermore, in order to ensure the locking effect, in this embodiment, the locking assembly 5 also includes an elastic member 54, one end of the elastic member 54 is fixedly connected to the locking tongue 53, and the other end is connected to the side wall of the slide groove 52 to apply a thrust to the locking tongue 53 toward the locking groove 51.

[0053] See also Figure 1 to Figure 2 as well as Figures 9 to 11 In order to avoid the need to install an additional tarpaulin for rain and light protection, in this embodiment, a cover assembly 6 is also included. The cover assembly 6 can be detachably installed on a side of the photovoltaic inverter body 100 away from the protective assembly 1.

[0054] Specifically, the cover plate assembly 6 includes a cover plate 64 , and along the direction of the cover plate assembly 6 toward the protection assembly 1 , the projection area of ​​the cover plate 64 covers the projection area of ​​the photovoltaic inverter body 100 .

[0055] Furthermore, the cover plate 64 can be installed in a variety of ways. In this embodiment, in order to achieve stable installation of the cover plate 64, the cover plate assembly 6 also includes a first connecting frame 61, a second connecting frame 62 and a support frame 63. The first connecting frame 61 is provided with a plurality of roots, and all the first connecting frames 61 are fixedly connected to the photovoltaic inverter body 100; the second connecting frames 62 are arranged one by one with the first connecting frames 61, and are detachably connected to the corresponding first connecting frames 61; the support frame 63 connects all the second connecting frames 62; the cover plate 64 is installed on the support frame 63.

[0056] Furthermore, in order to prevent the setting of the cover plate 64 from affecting the heat dissipation of the photovoltaic inverter, in this embodiment, the installation height of the cover plate 64 can be adjusted. For example, multiple connection holes are set on the first connecting frame 61 and the second connecting frame 62, and the height of the cover plate 64 is adjusted by aligning different holes, which is not shown in the figure. The setting of the first connecting frame 61, the second connecting frame 62 and the supporting frame 63 in the cover plate assembly 6 can still maintain stability when the cover plate 64 has a certain installation height.

[0057] It is worth noting that in this embodiment, the two structures can be connected by bolts, and the two structures can be matched by the matching method of the groove and the rod, see Figure 3 , for example, the installation method of the first guide member 131 and the second guide member 132; see Fig.10 , for example, the installation method of the first connecting frame 61 and the second connecting frame 62.

[0058] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A protective structure for a photovoltaic inverter for new energy, the photovoltaic inverter comprising a photovoltaic inverter body (100) and a plurality of connection terminals (200) located on the photovoltaic inverter body (100), characterized in that: The protection structure comprises a protection component (1), and the protection component (1) is connected to the photovoltaic inverter body (100); The protection component (1) encloses to form a housing cavity (2) for housing the connection terminal (200); a side of the housing cavity (2) away from the photovoltaic inverter body (100) is connected to the outside through a heat dissipation port (3).

2. The protective structure of a photovoltaic inverter for new energy according to claim 1, characterized in that: The protection component (1) comprises a fixed part (11) and a detachable part (12); The fixing portion (11) is fixedly connected to the photovoltaic inverter body (100); The detachable portion (12) has a first state in which it is fixedly connected to the fixed portion (11) to enclose and form the accommodating cavity (2); The detachable portion (12) also has a second state in which it is detached from the fixed portion (11) so as to expose the connection terminal (200).

3. The protective structure of a photovoltaic inverter for new energy according to claim 2, characterized in that: The protection component (1) further comprises a sliding guide portion (13); The sliding guide portion (13) comprises a first guide member (131) and a second guide member (132), wherein the first guide member (131) is fixedly connected to the fixed portion (11), and the second guide member (132) is fixedly connected to the detachable portion (12); When the second guide member (132) is fixedly connected to the first guide member (131) via a locking member, the detachable portion (12) is in the first state; After the second guide member (132) slides along the first guide member (131) until it is separated from the first guide member (131), the detachable part (12) is in the second state.

4. The protective structure of a photovoltaic inverter for new energy according to claim 2, characterized in that: The fixing portion (11) comprises a first plate (111), and the first plate (111) is fixedly connected to the photovoltaic inverter body (100); The detachable portion (12) comprises a second plate (121), a third plate (122) and a fourth plate (123); the second plate (121) is arranged opposite to the first plate (111); one end of the second plate (121) is fixedly connected to the third plate (122), and the other end of the second plate (121) is fixedly connected to the fourth plate (123); When the detachable portion (12) is in the first state, the ends of the third plate (122) and the fourth plate (123) away from the second plate (121) both abut against the first plate (111).

5. A protective structure for a photovoltaic inverter for new energy according to any one of claims 1 to 4, characterized in that: The protection component (1) is provided with an observation portion (4) for observing the connection terminal (200).

6. The protective structure of a photovoltaic inverter for new energy according to claim 5, characterized in that: The observation portion (4) comprises an observation port (41) and a door panel (42); The observation port (41) is arranged on the protection component (1); The door panel (42) is hinged to the protection component (1), and a side of the door panel (42) away from its hinged position can be locked with the protection component (1) via a locking component (5), so that the door panel (42) covers the observation port (41); When the locking assembly (5) is unlocked, the door panel (42) can rotate around the hinged position so that the observation port (41) connects the accommodating chamber (2) with the outside world.

7. The protective structure of a photovoltaic inverter for new energy according to claim 6, characterized in that: A handle (421) is provided on one side of the door panel (42) away from its hinged position.

8. The protective structure of a photovoltaic inverter for new energy according to claim 6, characterized in that: The locking assembly (5) comprises a locking groove (51), a sliding groove (52), a locking tongue (53) and an elastic member (54); The locking groove (51) is located on the door panel (42), the sliding groove (52) is located on the protection component (1), and the locking tongue (53) is slidably installed in the sliding groove (52); When the door panel (42) and the protection assembly (1) are locked with each other through the locking assembly (5), the locking tongue (53) is inserted into the locking groove (51); One end of the elastic member (54) is fixedly connected to the locking tongue (53), and the other end is connected to the side wall of the sliding groove (52) so as to apply a thrust to the locking tongue (53) in the direction of the locking groove (51).

9. The protective structure of a photovoltaic inverter for new energy according to claim 1, characterized in that: The protective structure also includes a cover plate assembly (6); The cover plate assembly (6) is detachably mounted on a side of the photovoltaic inverter body (100) away from the protection assembly (1).

10. The protective structure of a photovoltaic inverter for new energy according to claim 9, characterized in that: The cover plate assembly (6) comprises a first connecting frame (61), a second connecting frame (62), a supporting frame (63), and a cover plate (64); A plurality of the first connecting frames (61) are provided, and all of the first connecting frames (61) are fixedly connected to the photovoltaic inverter body (100); The second connecting frame (62) is arranged in one-to-one correspondence with the first connecting frame (61), and is detachably connected to the first connecting frame (61) arranged correspondingly thereto; The supporting frame (63) connects all the second connecting frames (62); The cover plate (64) is installed on the support frame (63), and along the direction from the cover plate assembly (6) to the protection assembly (1), the projection area of ​​the cover plate (64) covers the projection area of ​​the photovoltaic inverter body (100).