Outdoor waterproof grid-connected box

Abstract

The application relates to an outdoor waterproof grid-connected box, and relates to the technical field of grid-connected boxes. The grid-connected box comprises a box body and a box door mounted on the box body. A plurality of heat dissipation holes are formed in the two opposite vertical sides of the box body. A guide cover opening upward is fixed on the inner edge of the heat dissipation hole of the box body. A base plate is arranged below the box body. A plurality of vertical rods are fixed on the base plate. The upper end of the vertical rod is fixedly connected with the bottom side of the box body. A blocking plate is slidably arranged above the guide cover on the inner wall of the box body. A plurality of blocking holes are formed in the blocking plate. Water-absorbing cotton is fixedly arranged on the blocking plate. The two ends of the blocking plate are fixedly provided with connecting rods penetrating through the bottom of the box body and extending to the outside of the box body. A control assembly for driving the connecting rods to slide up and down is arranged on the base plate. In the application, the guide cover and the blocking plate (with water-absorbing cotton) are arranged to effectively prevent rainwater and water vapor from invading the inside of the box through the heat dissipation holes in a humid or rainy environment.

Description

Technical Field

[0001] This application relates to the technical field of grid-connected boxes, and in particular to an outdoor waterproof grid-connected box. Background Technology

[0002] Outdoor grid-connected boxes, as an indispensable part of modern power systems, are crucial for the safe and stable transmission of electricity from various power generation facilities (such as photovoltaic and wind power plants) to user terminals or direct grid connection. Globally, with increasing emphasis on low-carbon, sustainable development, and clean energy utilization, distributed generation systems, especially photovoltaic power generation, are experiencing unprecedented development opportunities. Against this backdrop, the role of outdoor grid-connected boxes is becoming increasingly prominent. They are not only bridges for power transmission but also vital guardians of the safe and efficient operation of the entire power generation system, providing multiple protection and monitoring functions.

[0003] Traditional outdoor grid-connected enclosures typically use metal bodies and covers with high protection ratings (e.g., IP54 or higher) to withstand harsh environmental conditions and ensure the safety of internal electrical components. The cover design is flexible, hinged to the body on one side and opened / closed using a conventional lock on the other, facilitating maintenance and operation. The internal layout is compact, integrating key electrical components such as DC input modules, DC combiner boxes, and AC output modules, forming a complete power conversion and transmission system. Furthermore, to improve heat dissipation efficiency, ventilation holes are cleverly incorporated into the side walls of the enclosure, effectively managing the internal temperature.

[0004] However, this design faces challenges in hot and humid southern regions, especially during the rainy season. Frequent rainfall and high humidity can cause rainwater and moisture to seep through the ventilation holes and into the enclosure, posing a potential threat to the delicate electrical modules. Moisture intrusion can not only cause electrical faults such as short circuits and corrosion, but also accelerate component aging, severely affecting the performance stability and lifespan of the grid-connected enclosure, indicating room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide an outdoor waterproof grid-connected box to solve the problem in the above-mentioned related technologies that rainwater and water vapor may penetrate through the heat dissipation holes and enter the box body, affecting the performance of the electrical modules.

[0006] The outdoor waterproof grid-connected box provided in this application adopts the following technical solution:

[0007] An outdoor waterproof grid-connected box includes a box body and a door installed on the box body. Several heat dissipation vents are provided on two opposite vertical sides of the box body. An upward-opening guide cover is fixed to the inner edge of each heat dissipation vent on the box body. A base plate is provided below the box body, and several vertical rods are fixed to the base plate. The upper ends of the vertical rods are fixedly connected to the bottom side of the box body. A barrier plate is slidably mounted on the inner wall of the box body, located above the guide cover. The barrier plate has several blocking holes and is fitted with absorbent cotton. Connecting rods that penetrate the bottom of the box body and extend to the outside of the box body are fixed to both ends of the barrier plate. A control component is provided on the base plate to drive the connecting rods to slide up and down. When the barrier plate slides up and down synchronously with the connecting rods, it can seal the opening of the guide cover.

[0008] By adopting the above technical solution, with an upward-opening guide cover and a sliding baffle plate (with absorbent cotton), rainwater and moisture can be effectively prevented from entering the enclosure through the heat dissipation holes in humid or rainy environments. When the external environment is humid, the baffle plate descends and tightly seals the opening of the guide cover, while the absorbent cotton further absorbs any small amount of moisture that may seep in, thus greatly reducing the threat of moisture to the internal electrical modules.

[0009] Optionally, the control component includes a reset component that drives the connecting rod to slide downwards and reset, and a drive component that drives the connecting rod to slide upwards and reset. The drive component includes a push rod slidably disposed on the upper side of the substrate, an electric cylinder fixed on the substrate, and a battery that supplies power to the electric cylinder. The electric cylinder is used to drive the push rod to slide back and forth. The lower edge of the connecting rod is provided with a guide slope, and the push rod can slide along the guide slope and press the connecting rod to slide upwards.

[0010] By adopting the above technical solution, when controlling the barrier plate to slide up and down, the push rod is driven to slide by an electric cylinder, and the connecting rod is pushed up by the guide slope, thus realizing the rapid sealing and opening of the barrier plate. This design not only improves the convenience of operation and response speed, but also enhances the reliability and stability of the equipment. At the same time, the structure is compact and occupies little space, which is beneficial to the overall layout of the grid connection box. In addition, by adjusting the stroke and speed of the electric cylinder, it can flexibly adapt to different working environments and needs.

[0011] Optionally, the reset component includes a spring, a baffle fixed to the outer periphery of the connecting rod, and a guide block fixed to the inner wall of the housing. The guide block has a guide hole for the connecting rod to pass through. The guide block is located above the baffle. The two ends of the spring are fixedly connected to the sides of the guide block and the baffle that are close to each other.

[0012] By adopting the above technical solution, the reset component, through a combination of spring, baffle, and guide block, achieves the automatic reset function of the connecting rod (and barrier plate) sliding downwards. When the driving component releases the pressure on the connecting rod, the spring force pushes the baffle and connecting rod to slide smoothly down along the guide hole until they tightly fit and seal the guide cover. This design not only improves the automation level of the equipment but also enhances the stability and reliability of the structure. Simultaneously, the guide block and guide hole ensure the smoothness and accuracy of the connecting rod's sliding, which helps extend the service life of the equipment.

[0013] Optionally, several support rods are hinged to the opposite vertical sides of the substrate. A roller is fixed to one end of each support rod, and an adjustment component is provided on the push rod to control the rotation of the support rod. The roller can rotate with the support rod to a state that protrudes from the bottom side of the substrate, or it can rotate to a state that is flush with the bottom side of the substrate.

[0014] By adopting the above technical solution, the base plate, through its hinged support rod and roller design, enables flexible placement and stable support of the grid-connected box on various terrains. Adjustable components control the rotation of the support rod, allowing the rollers to protrude from the bottom of the base plate for easy movement, or rotate to be flush with the base plate for stability. This design not only improves the portability and adaptability of the grid-connected box but also facilitates rapid deployment and adjustment in complex environments. Simultaneously, the roller design reduces friction and resistance, which helps reduce energy consumption and wear during movement, extending the equipment's service life.

[0015] Optionally, the adjusting component includes an adjusting rod fixed to the outer periphery of the push rod, a limiting rod vertically fixed to the end of the support rod away from the roller, a limiting protrusion fixed to the end of the limiting rod away from the support rod, and a limiting notch formed on the limiting protrusion; the adjusting rod can slide synchronously with the push rod, during which the limiting rod is squeezed and the support rod is rotated until the end of the adjusting rod is inserted into the limiting notch, and the roller is in a state protruding from the bottom side of the base plate at this time.

[0016] By adopting the above technical solution, the adjusting component, through the cooperation of the adjusting rod, the limiting rod, and the limiting protrusion, achieves precise control of the support rod's rotation during the sliding process of the push rod. When the push rod slides, the adjusting rod presses against the limiting rod, causing the support rod to rotate until the end of the adjusting rod engages in the limiting notch. At this point, the roller protrudes from the bottom side of the base plate, facilitating the movement of the grid connection box. This design not only improves the convenience and precision of operation but also enhances the stability and reliability of the structure.

[0017] Optionally, an elastic snap-fit ​​element is provided on the outer periphery of the adjusting rod, and a positioning groove is provided on the inner wall of the limiting notch for the elastic snap-fit ​​element to snap into.

[0018] By adopting the above technical solution, the elastic locking component on the adjusting rod cooperates with the positioning groove on the inner wall of the limiting notch, achieving a stable locking between the adjusting rod and the limiting protrusion. This design not only enhances the stability of the adjusting rod after it is locked into the limiting notch, preventing accidental detachment due to external forces, but also improves the safety and reliability of the grid connection box during movement.

[0019] Optionally, a guide slope is provided on the opening edge of the limiting notch.

[0020] By adopting the above technical solution, the design of the guide slope makes the adjusting rod slide into the limiting notch more smoothly, reducing resistance and friction during the jamming process, which helps to reduce the difficulty of operation and improve work efficiency.

[0021] Optionally, a reinforcing rod is fixed on the bottom side of the housing above the support rod, and the outer side of the limiting protrusion is an arc surface; when the roller rotates to a state flush with the bottom side of the substrate, the bottom side of the support rod in this state is flush with the bottom side of the substrate, and the lower end of the reinforcing rod abuts against the outer side of the limiting protrusion at this time.

[0022] By adopting the above technical solution, when the roller rotates to be flush with the bottom side of the base plate, it provides additional support and limiting function for the support rod. This design not only enhances the stability of the grid connection box in a static state, preventing swaying or tilting caused by external forces, but also improves the strength and durability of the structure. At the same time, the curved surface design makes the contact process smoother, reduces friction and wear, and helps extend the service life of the equipment.

[0023] Optionally, an elastic pad is fixed on the outer surface of the limiting protrusion.

[0024] By adopting the above technical solution, the elastic pad can increase the contact area between the limiting protrusion and the reinforcing rod, improving the friction between them. This ensures that the support rod is more stable when stationary, preventing it from wobbling or tilting. Simultaneously, the elastic pad also acts as a buffer, reducing direct collisions and friction between the limiting protrusion and the reinforcing rod, thus extending the service life of the equipment.

[0025] Optionally, a protective cover with an opening facing downwards is fixed to the outer edge of the heat dissipation vent on the housing.

[0026] By adopting the above technical solutions, the protective cover can effectively prevent external dust, water droplets, and other impurities from entering the heat dissipation vents, keeping the heat dissipation channels clean and unobstructed. This ensures the normal heat dissipation of the electrical components inside the grid-connected box and prevents malfunctions or damage caused by overheating. At the same time, the downward-facing design guides rainwater and other liquids down the outer wall of the protective cover, preventing them from dripping directly into the heat dissipation vents, further improving the waterproof performance of the grid-connected box.

[0027] In summary, this application includes the following beneficial technical effects:

[0028] In humid or rainy environments, the upward-opening guide cover and the sliding baffle (with absorbent cotton) effectively prevent rainwater and moisture from entering the enclosure through the ventilation holes. When the external environment is humid, the baffle descends and tightly seals the opening of the guide cover, while the absorbent cotton further absorbs any small amount of moisture that may seep in, thus greatly reducing the threat of moisture to the internal electrical modules. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is a partial cross-sectional view of the protective cover and guide cover arrangement in an embodiment of this application;

[0032] Figure 3 This is a partial cross-sectional view of the installation and mating of the reset component according to an embodiment of this application;

[0033] Figure 4 This is a partial cross-sectional view of the installation and mating of the drive components in an embodiment of this application;

[0034] Figure 5 This is a partial structural diagram illustrating the roller protruding from the bottom side of the substrate in an embodiment of this application;

[0035] Figure 6 This is a partial structural diagram illustrating the situation where the roller is flush with the bottom side of the substrate in an embodiment of this application;

[0036] Figure 7 This is a partial cross-sectional view of an embodiment of the present application showing the roller protruding from the bottom side of the substrate;

[0037] Figure 8 yes Figure 7 A partial schematic diagram of part A in the middle.

[0038] In the diagram, 1. Enclosure; 11. Wiring port; 12. Heat dissipation vent; 13. Protective cover; 14. Guide cover; 15. Reinforcing rod; 2. Enclosure door; 3. Base plate; 31. Vertical rod; 32. Support rod; 33. Limiting rod; 34. Limiting protrusion; 341. Limiting notch; 3411. Guide slope; 3412. Positioning groove; 35. Elastic pad; 36. Roller; 4. Protective components; 41. Barrier plate; 411. Barrier 42. Hole; 43. Absorbent cotton; 43. Connecting rod; 431. Guide slope; 5. Control component; 51. Reset component; 511. Spring; 512. Baffle; 513. Guide block; 5131. Guide hole; 52. Drive component; 521. Push rod; 522. Electric cylinder; 523. Battery; 6. Adjusting component; 61. Adjusting rod; 611. Placement slot; 62. Elastic snap-fit ​​component; 621. Compression spring; 622. Arc-shaped protrusion. Detailed Implementation

[0039] The present application will be further described in detail below with reference to all the accompanying drawings.

[0040] Example:

[0041] Reference Figure 1 and Figure 2 An outdoor waterproof grid connection box includes a box body 1 and a box door 2 installed on the box body 1. Two wiring ports 11 for cable connection and grid connection operation are opened on the bottom side of the box body 1. One side of the box door 2 is hinged to the edge of the box body 1, and the other side is detachably connected to the box body 1 through a conventional lock structure, which facilitates opening and closing.

[0042] Several heat dissipation vents 12 are provided on the two opposite vertical sides of the housing 1. A protective cover 13 with an opening facing downward is fixed on the outer edge of the heat dissipation vent 12, and a guide cover 14 with an opening facing upward is fixed on the inner edge of the heat dissipation vent 12. The guide cover 14 is used to guide airflow and prevent rainwater from entering. A base plate 3 is provided below the housing 1. Four vertical rods 31 are fixed at the four corners of the upper side of the base plate 3, and the upper ends of the vertical rods 31 are fixedly connected to the bottom side of the housing 1.

[0043] Reference Figure 3 and Figure 4 The interior of the housing 1 is provided with a protective component 4, which includes a baffle plate 41 that slides on the inner wall of the housing 1 and is located above the guide cover 14. The baffle plate 41 has several baffle holes 411 that allow a certain amount of air to circulate. At the same time, absorbent cotton 42 is fixed on the baffle plate 41 to block and absorb a small amount of moisture that may enter through the baffle holes 411.

[0044] The two ends of the barrier plate 41 are fixed with connecting rods 43 that penetrate the bottom of the box 1 and extend to the outside of the box 1. The base plate 3 is provided with a control component 5 that drives the connecting rods 43 to slide up and down. When the barrier plate 41 slides up and down synchronously with the connecting rods 43, it can block the opening of the guide cover 14.

[0045] Reference Figure 3 and Figure 4 The control component 5 includes a reset component 51 that drives the connecting rod 43 to slide downward and reset, and a drive component 52 that drives the connecting rod 43 to slide upward and reset. The reset component 51 includes a spring 511 in a compressed state, a baffle 512 fixed on the outer periphery of the connecting rod 43, and a guide block 513 fixed on the inner wall of the housing 1. The guide block 513 has a guide hole 5131 for the connecting rod 43 to pass through. The guide block 513 is located above the baffle 512. The two ends of the spring 511 are fixedly connected to the sides of the guide block 513 and the baffle 512 that are close to each other.

[0046] The driving component 52 includes a push rod 521 slidably mounted on the upper side of the substrate 3, an electric cylinder 522 fixed on the substrate 3, and a battery 523 that supplies power to the electric cylinder 522. The electric cylinder 522 is used to drive the push rod 521 to slide back and forth. The lower edge of the connecting rod 43 is provided with a guide slope 431. The push rod 521 can slide along the guide slope 431 and press the connecting rod 43 to slide upward. In other embodiments, a protective shell (not shown in the figure) is fixed on the substrate 3 by screws to protect the electric cylinder 522 and the battery 523. This shell is used to enhance the protection of the electric cylinder 522 and the battery 523. This will not be described in detail here.

[0047] When the outside is dry, if it is necessary to remove the seal on the guide cover 14 to restore heat dissipation, the electric cylinder 522 in the control assembly 5 will be activated and drive the push rod 521 to slide along the guide slope 431, squeezing the connecting rod 43 to slide upward, thereby removing the seal on the guide cover 14 by the barrier plate 41 and the absorbent cotton 42.

[0048] When the outside is humid or rainy, if it is necessary to seal the opening of the guide cover 14, first reset the electric cylinder 522, and then the reset component 51 in the control assembly 5 will automatically function to reset the connecting rod 43 and the barrier plate 41 downwards and tightly fit and seal the guide cover 14.

[0049] Reference Figure 5 and Figure 6Two symmetrical support rods 32 are hinged to opposite vertical sides of the substrate 3. One end of the support rod 32 is fixed with a roller 36. The push rod 521 is provided with an adjustment member 6 for controlling the rotation of the support rod 32. The adjustment member 6 includes an adjustment rod 61 fixed on the outer periphery of the push rod 521. A limiting rod 33 is vertically fixed on the end of the support rod 32 away from the roller 36. A limiting protrusion 34 is integrally formed on the end of the limiting rod 33 away from the support rod 32. A limiting notch 341 is formed on the limiting protrusion 34.

[0050] When the grid-connected box needs to be moved a short distance, force is first applied to lift the entire box upwards a certain distance. Then, the electric cylinder 522 is activated, causing the push rod 521 and the adjusting rod 61 fixed thereon to slide synchronously. During the sliding process, the adjusting rod 61 presses against the limiting rod 33, causing the support rod 32 to rotate around the hinge point until the end of the adjusting rod 61 is engaged in the limiting notch 341 on the limiting protrusion 34. At this time, the roller 36 protrudes from the bottom side of the base plate 3, facilitating the movement of the grid-connected box.

[0051] When the grid-connected box is moved to the designated position and ready for installation, the reverse-operation electric cylinder 522 causes the adjusting rod 61 to disengage from the limiting notch 341, releasing the lock on the support rod 32; then the user manually rotates the support rod 32 back to its original position, so that the roller 36 is flush with the bottom side of the base plate 3, and at the same time the bottom side of the support rod 32 is also flush with the bottom side of the base plate 3, ensuring the stability of the grid-connected box.

[0052] Reference Figure 7 and Figure 8 An elastic snap-fit ​​member 62 is provided on the outer periphery of the adjusting rod 61. The elastic snap-fit ​​member 62 includes a compression spring 621 and an arc-shaped protrusion 622. A placement groove 611 is provided on the outer periphery of the end of the adjusting rod 61 for the compression spring 621 and the arc-shaped protrusion 622 to be placed. The compression spring 621 presses one side of the arc-shaped protrusion 622, causing a part of the arc-shaped protrusion 622 to protrude out of the opening of the placement groove 611. The outer side of the protrusion is an arc surface, and the arc length corresponding to the arc surface is a minor arc.

[0053] The limiting notch 341 has a guide slope 3411 on the opening edge, and the inner wall of the limiting notch 341 has a positioning groove 3412 for the elastic snap-fit ​​62 to be snapped into; so that the end of the adjusting rod 61 can be inserted into the limiting notch 341 along the guide slope 3411 until the elastic snap-fit ​​62 is snapped into the corresponding positioning groove 3412.

[0054] Reference Figure 5 A reinforcing rod 15 located above the support rod 32 is fixed on the bottom side of the box body 1. The outer side of the limiting protrusion 34 is arc-shaped, and a rubber elastic pad 35 is fixed on the outer side of the limiting protrusion 34 by glue.

[0055] When the roller 36 rotates to a position flush with the bottom side of the base plate 3, the lower end of the reinforcing rod 15 abuts against the elastic pad 35, and one side of the push rod 521 abuts against one side of the limiting rod 33. This design not only improves the support stability of the base plate 3 for the housing 1, but also reduces vibration and noise to a certain extent, thereby improving the overall performance of the grid connection box.

[0056] The implementation principle of this application embodiment is as follows:

[0057] The guide cover 14 is sealed when wet by a sliding barrier plate 41 and absorbent cotton 42, and the seal is released by an electric cylinder 522 when dry to restore heat dissipation. The grid connection box is moved and fixed by a support rod 32, rollers 36 and adjusting parts 6. The elastic snap-fit ​​part 62 on the adjusting rod 61 can be easily snapped into the positioning groove 3412 of the limiting protrusion 34 to lock the support rod 32. The design of the reinforcing rod 15 and the elastic pad 35 improves the support stability of the box 1 and reduces vibration and noise.

[0058] Unless otherwise defined, the terms or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "one," and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar words mean that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An outdoor waterproof grid-connected box, comprising a box body and a door installed on the box body, wherein a plurality of heat dissipation vents are provided on two opposite vertical sides of the box body, and an upward-opening guide cover is fixedly provided on the box body along the inner edge of the heat dissipation vents; characterized in that, The bottom of the box is provided with a base plate, and a number of vertical rods are fixed on the base plate. The upper ends of the vertical rods are fixedly connected to the bottom side of the box. A baffle plate is slidably mounted on the inner wall of the box above the guide cover. The baffle plate has several baffle holes and is fixed with absorbent cotton. Connecting rods that penetrate the bottom of the box and extend to the outside of the box are fixed at both ends of the baffle plate. A control component is provided on the base plate to drive the connecting rods to slide up and down. When the baffle plate slides up and down synchronously with the connecting rods, it can block the opening of the guide cover. The control component includes a reset component that drives the connecting rod to slide downwards and reset, and a drive component that drives the connecting rod to slide upwards and reset. The drive component includes a push rod that slides on the upper side of the substrate, an electric cylinder that is fixed on the substrate, and a battery that powers the electric cylinder. The electric cylinder is used to drive the push rod to slide back and forth. The lower edge of the connecting rod is provided with a guide slope. The push rod can slide along the guide slope and press the connecting rod to slide upwards. Several support rods are hinged to the opposite vertical sides of the substrate. A roller is fixed to one end of each support rod. An adjustment component is provided on the push rod to control the rotation of the support rod. The roller can rotate with the support rod to a state that protrudes from the bottom side of the substrate, or it can rotate to a state that is flush with the bottom side of the substrate. The adjusting component includes an adjusting rod fixed to the outer periphery of the push rod, a limiting rod vertically fixed to the end of the support rod away from the roller, a limiting protrusion fixed to the end of the limiting rod away from the support rod, and a limiting notch formed on the limiting protrusion; the adjusting rod can slide synchronously with the push rod, during which the limiting rod is pressed and the support rod is rotated until the end of the adjusting rod is inserted into the limiting notch, and the roller is in a state of protruding from the bottom side of the base plate at this time; A reinforcing rod is fixed on the bottom side of the housing above the support rod, and the outer side of the limiting protrusion is an arc surface; when the roller rotates to a state flush with the bottom side of the substrate, the bottom side of the support rod in this state is flush with the bottom side of the substrate, and the lower end of the reinforcing rod abuts against the outer side of the limiting protrusion.

2. The outdoor waterproof grid-connected box according to claim 1, characterized in that, The reset component includes a spring, a baffle fixed on the outer periphery of the connecting rod, and a guide block fixed on the inner wall of the box. The guide block has a guide hole for the connecting rod to pass through. The guide block is located above the baffle. The two ends of the spring are fixedly connected to the sides of the guide block and the baffle that are close to each other.

3. The outdoor waterproof grid-connected box according to claim 1, characterized in that, An elastic snap-fit ​​element is provided on the outer periphery of the adjusting rod, and a positioning groove is provided on the inner wall of the limiting notch for the elastic snap-fit ​​element to snap into.

4. An outdoor waterproof grid-connected box according to claim 1, characterized in that, The limiting notch has a guide slope on its opening edge.

5. An outdoor waterproof grid-connected box according to claim 1, characterized in that, An elastic pad is fixed on the outer surface of the limiting protrusion.

6. An outdoor waterproof grid-connected box according to claim 1, characterized in that, A protective cover with an opening facing downwards is fixed to the outer edge of the heat dissipation vent on the casing.

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