Photovoltaic energy storage inverter

Abstract

The utility model discloses a photovoltaic energy storage inverter, which relates to the field of photovoltaic technology and comprises a box body and a base, a box door is hinged to the front end of the box body, a handle is arranged at the front end of the box door, a refrigeration sheet is arranged on the outer side wall of the box body, and an inner circulation box is mounted on the inner side wall of the box body. An air inlet and an air outlet are respectively formed in the tops and the bottoms of the opposite ends of the two inner circulation boxes; a drawer groove is formed in the top of the front end of the inner circulation box, a bottom plate is slidably installed in the drawer groove, and a fan is installed at the upper end of the bottom plate. A height adjusting structure is arranged between the box body and the base and is used for adjusting the height position of the box body; a locking structure is arranged at the joint of the outer plate and the inner circulation box, during maintenance, the rotating rod is rotated to unlock connection of the outer plate and the inner circulation box, the bottom plate can be conveniently pulled out, the process is simplified, and efficiency is improved; equidistant choke plates are arranged in the inner circulation box, air holes in the plates are wide in air inlet and narrow in air outlet, flow control speed is stable, air guide is uniform and stable, turbulent vortex is reduced, and air flow quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a photovoltaic energy storage inverter. Background Art

[0002] With the continuous development of photovoltaic technology, photovoltaic energy storage inverters, as key components of photovoltaic power generation systems, have an important impact on the overall efficiency of the system.

[0003] The photovoltaic energy storage inverter described in the existing patent announcement number CN220733294U includes a box, a refrigeration plate, an internal circulation box and a fan, wherein the air inside the box is drawn into the inner cavity of the inner circulation box by the fan to contact the refrigeration plate, and the air entering the inner cavity of the inner circulation box is cooled by the refrigeration plate. The cooled air enters the inner cavity of the box through the inner circulation box to cool the interior of the box, effectively ensuring the service life of the photovoltaic energy storage inverter; the inner circulation box is detachably mounted on the left and right side walls of the inner cavity of the box by bolts, the inner circulation box and the box are sealed, and the fan is detachably mounted on the bottom of the inner cavity of the inner circulation box by bolts, and the inner cavity of the inner circulation box is connected to the inner cavity of the box.

[0004] Although the fan in the above-mentioned inverter is detachable, its installation at the bottom of the inner cavity of the internal circulation box may be subject to space limitations, making the maintenance and replacement process complicated. In addition, in a closed space, hot air will naturally rise due to its lower density, while cold air will sink. When the fan is installed at the bottom, it needs to extract hot air from the bottom, which may require overcoming a certain hot air stratification phenomenon, thereby increasing the workload of the fan.

[0005] Based on this, photovoltaic energy storage inverters are now provided to eliminate the disadvantages of existing inverters. Utility Model Content

[0006] The purpose of the present utility model is to provide a photovoltaic energy storage inverter to solve the problem that although the fan in the inverter in the background technology is detachable, it may be subject to space limitations when installed at the bottom of the inner cavity of the internal circulation box, making the maintenance and replacement process complicated. In addition, in a closed space, hot air will naturally rise due to its low density, while cold air will sink. When the fan is installed at the bottom, it needs to extract hot air from the bottom, which may require overcoming a certain hot air stratification phenomenon, thereby increasing the workload of the fan.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] The photovoltaic energy storage inverter includes a box body and a base. A box door is hingedly installed at the front end of the box body, and a handle is provided at the edge of one side of the front end of the box door. The outer wall of the box body is provided with a cooling fin. The left and right side walls inside the box body are detachably installed with an internal circulation box by bolts. The inner cavity of the internal circulation box corresponds to the cold end of the cooling fin. An air inlet is opened at the top of the two opposite ends of the internal circulation box, and an air outlet is opened at the bottom of the two opposite ends of the internal circulation box.

[0009] A drawer slot is provided at the front top of the inner circulation box, a bottom plate is slidably mounted inside the drawer slot, a fan can be detachably mounted on the upper end of the bottom plate by means of bolts, and one end of the bottom plate extends to the outside of the inner circulation box and is fixedly connected to the outer plate;

[0010] It also includes a height adjustment structure, which is arranged between the box body and the base and is used to adjust the height position of the box body;

[0011] The locking structure is arranged at the connection between the outer plate and the inner circulation box, and is used to lock the bottom plate inside the drawer slot.

[0012] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0013] In an optional solution: the height adjustment structure includes an installation cavity, the installation cavity is opened inside the base, a through hole is opened in the middle position of the upper end of the base, the through hole is connected to the inside of the installation cavity, an electric push rod is installed inside the installation cavity, the telescopic end of the electric push rod passes through the through hole and is fixedly connected to the middle position of the bottom end of the box, and left and right auxiliary components are provided between the box and the base.

[0014] In an optional solution: the auxiliary component includes a sliding groove, a sliding groove is opened at the upper end of the base, a limiting plate is fixedly installed on the side of the upper end of the sliding groove, a sliding block is slidably installed inside the sliding groove, the upper end of the sliding block is fixedly connected to the fixed plate, and the fixed plate is fixedly connected to the bottom end of the box.

[0015] In an optional solution: the locking structure includes a fixed rod and a locking rod, the fixed rod is fixedly installed on the front top of the inner circulation box, the locking rod is fixedly installed on one end of the outer plate close to the rotating rod, the locking rod is located below the fixed rod, and a rotating rod is rotatably installed inside the fixed rod, both ends of the rotating rod are fixedly connected to the movable locking block, and a positioning component is provided on one side of the drawer slot opened in the inner circulation box.

[0016] In an optional solution: the positioning component includes a positioning groove, the positioning groove is opened at the front end of the internal circulation box, the positioning groove is located on one side of the drawer groove, a positioning block is slidably installed inside the positioning groove, and the positioning block is fixedly installed on one side of the bottom plate.

[0017] In an optional solution: wind blocking plates and speed limiting plates are alternately and equidistantly arranged inside the internal circulation box, and a plurality of air holes are opened at the upper end of the wind blocking plate below the speed limiting plate and the wind blocking plate. The air holes pass through the lower end of the wind blocking plate, and the inner diameter of the air inlet end of the air hole is larger than the inner diameter of the air outlet end.

[0018] In an optional solution: a mounting opening is provided through the upper end of the speed limit plate, and a rotating plate is rotatably mounted inside the mounting opening.

[0019] In an optional solution: a transparent observation window is installed at the front end of the box door.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The utility model uses a locking structure. By rotating the rotating rod, the movable locking block and the locking rod cooperate closely to firmly lock the bottom plate in the inner circulation box drawer slot, ensuring stability and reliability, and preventing loosening, falling off or damage. During maintenance, the rotating rod is rotated to unlock the connection between the outer plate and the inner circulation box, and the bottom plate can be easily pulled out, simplifying the process and improving efficiency. Maintenance can be completed without disassembling the entire machine or complex structures.

[0022] 2. The utility model installs a fan inside the drawer slot opened at the front top of the internal circulation box. Since in a closed space, hot air will naturally rise due to its low density, while cold air will sink. The fan draws the hot air from the top of the box into the inner cavity of the internal circulation box through the air inlet and corresponds to the cold end of the refrigeration plate, thereby achieving effective heat exchange and heat dissipation effects. The cooled air continues to flow in the internal circulation box and is finally discharged into the box through the air outlet, forming a cycle.

[0023] 3. The utility model uses the wind blocker and the air holes on the wind blocker to effectively control the flow rate and flow velocity of the airflow through the air blocker, guide the airflow to pass in a more stable and uniform manner, reduce turbulence and eddy currents, and improve the stability and uniformity of the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] Figure 2 It is a schematic diagram of the structure inside the base of the utility model.

[0026] Figure 3 This is a structural diagram of the height adjustment structure of the utility model.

[0027] Figure 4 This is a structural diagram of the internal circulation box of the utility model.

[0028] Figure 5 For this utility model Figure 4 Schematic diagram of the structure at position A in the figure.

[0029] Figure 6 This is a structural diagram of the bottom plate, outer plate and drawer slot of the utility model.

[0030] Figure 7 This is a structural diagram of the wind blocking plate of the utility model.

[0031] Figure 8 This is a structural diagram of the speed limiter of the utility model.

[0032] Notes on the figure markings: 11. Box body; 12. Box door; 13. Handle; 14. Refrigeration plate; 15. Base; 16. Mounting cavity; 17. Perforation; 18. Electric push rod; 19. Sliding groove; 20. Limiting plate; 21. Sliding block; 22. Fixed plate; 23. Internal circulation box; 24. Fixed rod; 25. Rotating rod; 26. Movable locking block; 27. Outer plate; 28. Locking rod; 29. Positioning groove; 30. Bottom plate; 31. Positioning block; 32. Air block plate; 33. Air hole; 34. Speed limit plate; 35. Mounting port; 36. Rotating plate; 37. Air inlet; 38. Air outlet. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0034] In one embodiment, Figures 1-8 As shown, the photovoltaic energy storage inverter includes a box body 11 and a base 15. The front end of the box body 11 is hingedly mounted with a box door 12, and a handle 13 is provided at the edge of one side of the front end of the box door 12. The outer wall of the box body 11 is provided with a cooling fin 14. The left and right side walls inside the box body 11 are detachably mounted with an inner circulation box 23 by bolts. The inner cavity of the inner circulation box 23 corresponds to the cold end of the cooling fin 14. The tops of the two opposite ends of the inner circulation boxes 23 are provided with air inlets 37, and the bottoms of the two opposite ends of the inner circulation boxes 23 are provided with air outlets 38.

[0035] The front end of the inner circulation box 23 is provided with a drawer slot, inside which a bottom plate 30 is slidably mounted. A fan can be detachably mounted on the upper end of the bottom plate 30 by bolts. One end of the bottom plate 30 extends to the outside of the inner circulation box 23 and is fixedly connected to the outer plate 27.

[0036] It also includes a height adjustment structure, which is provided between the box body 11 and the base 15 and is used to adjust the height position of the box body 11;

[0037] The locking structure is provided at the connection between the outer plate 27 and the inner circulation box 23 and is used to lock the bottom plate 30 inside the drawer.

[0038] In this embodiment, the box 11 and the base 15 are connected by a height adjustment structure, and the height can be adjusted as needed;

[0039] The inner circulation box 23 is installed on the left and right side walls of the box body 11 by bolts, and its inner cavity corresponds to the cold end of the refrigeration fin 14;

[0040] The bottom plate 30 is slidably mounted on the inner circulation box 23 through the drawer slot, the fan is fixed to the bottom plate 30 by bolts, and the outer plate 27 is fixedly connected to the bottom plate 30;

[0041] The cooling fin 14 is activated, and its cold end starts to work and generate cooling capacity. At the same time, the fan is driven by the control circuit inside the inverter box and starts to rotate.

[0042] The fan rotates to generate airflow, which draws the air inside the box 11 into the inner cavity of the inner circulation box 23 through the air inlet 37. When the inhaled air passes through the cold end of the refrigeration fin 14, it exchanges heat with the cold end, and the temperature drops. The cooled air continues to flow in the inner circulation box 23, and is finally discharged into the box 11 through the air outlet 38, forming a cycle.

[0043] According to installation requirements or environmental changes, the height position of the box 11 can be adjusted through the height adjustment structure;

[0044] When it is necessary to maintain the fan or other internal components, the locking structure is used to unlock the connection between the outer plate 27 and the inner circulation box 23, and the bottom plate 30 is pulled out of the drawer for maintenance or replacement. After the maintenance or replacement is completed, the bottom plate 30 is slid back into the drawer and locked using the locking structure.

[0045] In one embodiment, Figure 1-Figure 3 As shown, the height adjustment structure includes an installation cavity 16, which is opened inside the base 15. A through hole 17 is opened in the middle position of the upper end of the base 15, and the through hole 17 is connected to the inside of the installation cavity 16. An electric push rod 18 is installed inside the installation cavity 16, and the telescopic end of the electric push rod 18 passes through the through hole 17 and is fixedly connected to the middle position of the bottom end of the box body 11. Left and right auxiliary components are provided between the box body 11 and the base 15.

[0046] According to installation requirements or environmental changes, the height position of the box 11 is adjusted by controlling the extension and contraction of the electric push rod 18 to meet the needs of different installation environments.

[0047] In one embodiment, Figure 2 — Figure 3As shown, the auxiliary component includes a sliding groove 19, a sliding groove 19 is opened at the upper end of the base 15, a limiting plate 20 is fixedly installed on the upper side of the sliding groove 19, a sliding block 21 is slidably installed inside the sliding groove 19, and the upper end of the sliding block 21 is fixedly connected to the fixed plate 22, and the fixed plate 22 is fixedly connected to the bottom end of the box body 11.

[0048] The sliding groove 19, the sliding block 21 and the limit plate 20 not only help the box to move smoothly during the height adjustment process, but also provide additional support and stability after the adjustment is completed, preventing the box 11 from shaking or tilting due to external forces.

[0049] In one embodiment, Figure 4-Figure 6 As shown, the locking structure includes a fixed rod 24 and a locking rod 28. The fixed rod 24 is fixedly mounted on the top front end of the inner circulation box 23, and the locking rod 28 is fixedly mounted on one end of the outer plate 27 close to the rotating rod 25. The locking rod 28 is located below the fixed rod 24. The rotating rod 25 is rotatably mounted inside the fixed rod 24. Both ends of the rotating rod 25 are fixedly connected to the movable locking block 26. A positioning component is provided on one side of the drawer slot opened in the inner circulation box 23.

[0050] By rotating the rotating rod 25, the movable locking block 26 can cooperate with the locking rod 28 to firmly lock the bottom plate 30 inside the drawer of the inner circulation box 23, ensuring the stability of the bottom plate 30 and the fan and other components installed thereon during the operation of the inverter, and preventing loosening or falling off due to vibration or external force; when it is necessary to maintain the fan or other internal components, the locking structure is used to unlock the connection between the outer plate 27 and the inner circulation box 23, and the bottom plate 30 is pulled out of the drawer for maintenance or replacement operations, which simplifies the maintenance process and improves work efficiency.

[0051] In one embodiment, Figure 6 As shown, the positioning assembly includes a positioning groove 29, which is opened at the front end of the inner circulation box 23, and is located on one side of the drawer slot. A positioning block 31 is slidably installed inside the positioning groove 29, and the positioning block 31 is fixedly installed on one side of the bottom plate 30.

[0052] The positioning grooves 29 and the positioning blocks 31 provide precise positioning and support for the base plate 30 , which helps ensure the accuracy of the base plate 30 during installation and maintain a stable posture during use.

[0053] In one embodiment, Figure 4 、 Figure 7-Figure 8As shown, the inner circulation box 23 is provided with air blocking plates 32 and speed limiting plates 34 alternately and equidistantly. Below the speed limiting plates 34 and the air blocking plates 32, a plurality of air holes 33 are provided at the upper end of the air blocking plates 32. The air holes 33 pass through the lower end of the air blocking plates 32, and the inner diameter of the air inlet end of the air hole 33 is larger than the inner diameter of the air outlet end.

[0054] The air blocking plate 32 controls the amount and velocity of the air flow through the air holes 33 thereon. The inner diameter of the air inlet end of the air hole 33 is larger than the inner diameter of the air outlet end, which helps to guide the air flow to pass through in a more stable manner while reducing the turbulence and eddy current of the air flow, thereby improving the uniformity and stability of the air flow; the speed limiting plate 34 is located below the air blocking plate 32, and its main function is to further limit and regulate the flow velocity of the air flow.

[0055] In one embodiment, Figure 4 、 Figure 8 As shown, a mounting opening 35 is formed through the upper end of the speed limiting plate 34 , and a rotating plate 36 is rotatably mounted inside the mounting opening 35 .

[0056] By rotating the rotating plate 36, its degree of opening and closing can be flexibly adjusted, thereby controlling the airflow through the mounting opening 35. Rotating the rotating plate 36 can also change the direction of the airflow to a certain extent. This helps guide the airflow along a predetermined path and ensures that all components within the inverter are adequately cooled.

[0057] In one embodiment, Figure 1 As shown, a transparent observation window is installed at the front end of the box door 12.

[0058] The transparent observation window allows users to intuitively view the operating status inside the inverter without opening the box door. This helps users quickly locate the problem through the observation window when the inverter fails.

[0059] The above embodiment discloses a photovoltaic energy storage inverter, wherein the inner circulation box 23 is mounted on the left and right side walls of the box body 11 by bolts, and its inner cavity corresponds to the cold end of the refrigeration fin 14;

[0060] The bottom plate 30 is slidably mounted on the inner circulation box 23 through the drawer slot, the fan is fixed to the bottom plate 30 by bolts, and the outer plate 27 is fixedly connected to the bottom plate 30;

[0061] The cooling fin 14 is activated, and its cold end starts to work and generate cooling capacity. At the same time, the fan is driven by the control circuit inside the inverter box and starts to rotate.

[0062] The fan rotates to generate airflow, which draws the air inside the box 11 into the inner cavity of the inner circulation box 23 through the air inlet 37. When the inhaled air passes through the cold end of the refrigeration plate 14, it exchanges heat with the cold end, reducing its temperature. The cooled air continues to flow in the inner circulation box 23. The wind blocking plate 32 controls the amount and flow rate of the airflow through the air holes 33 thereon. The inner diameter of the air inlet end of the air hole 33 is larger than the inner diameter of the air outlet end. This helps to guide the airflow to pass through in a more stable manner, while reducing the turbulence and vortex of the airflow, thereby improving the uniformity and stability of the airflow. By rotating the rotating plate 36, its opening and closing degree can be flexibly adjusted to control the airflow flow through the mounting port 35. The rotation of the rotating plate 36 can also change the direction of the airflow to a certain extent. This helps to guide the airflow to flow along a predetermined path, ensuring that all components inside the inverter can be adequately cooled, and finally discharged into the box 11 through the air outlet 38, forming a cycle.

[0063] According to installation requirements or environmental changes, the height position of the box 11 is adjusted by controlling the extension and contraction of the electric push rod 18. The sliding block 21 slides in the sliding groove 19 and is restricted by the limit plate 20 to ensure the stability of the box 11 when adjusting the height.

[0064] When the fan or other internal components need to be maintained, the locking structure is used to unlock the connection between the outer plate 27 and the inner circulation box 23, and the bottom plate 30 is pulled out from the drawer for maintenance or replacement, which simplifies the maintenance process and improves work efficiency.

[0065] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A photovoltaic energy storage inverter, comprising a box body (11) and a base (15), wherein a box door (12) is hingedly mounted on the front end of the box body (11), a handle (13) is provided at the edge of one side of the front end of the box door (12), a refrigeration plate (14) is provided on the outer wall of the box body (11), an inner circulation box (23) is detachably mounted on the left and right side walls inside the box body (11) by bolts, the inner cavity of the inner circulation box (23) corresponds to the cold end of the refrigeration plate (14), an air inlet (37) is provided at the top of the two opposite ends of the inner circulation boxes (23), and an air outlet (38) is provided at the bottom of the two opposite ends of the inner circulation boxes (23); It is characterized by: A drawer groove is provided at the top front end of the inner circulation box (23), a bottom plate (30) is slidably mounted inside the drawer groove, a fan is detachably mounted on the upper end of the bottom plate (30) by means of bolts, and one end of the bottom plate (30) extends to the outside of the inner circulation box (23) and is fixedly connected to an outer plate (27); It also includes a height adjustment structure, which is arranged between the box body (11) and the base (15) and is used to adjust the height position of the box body (11); A locking structure is provided at the connection between the outer plate (27) and the inner circulation box (23) and is used to lock the bottom plate (30) inside the drawer slot.

2. The photovoltaic energy storage inverter according to claim 1, characterized in that: The height adjustment structure includes an installation cavity (16), the installation cavity (16) is opened inside the base (15), a through hole (17) is opened at the middle position of the upper end of the base (15), the through hole (17) is connected with the inside of the installation cavity (16), an electric push rod (18) is installed inside the installation cavity (16), the telescopic end of the electric push rod (18) passes through the through hole (17) and is fixedly connected to the middle position of the bottom end of the box (11), and left and right auxiliary components are provided between the box (11) and the base (15).

3. The photovoltaic energy storage inverter according to claim 2, characterized in that: The auxiliary component includes a sliding groove (19), the sliding groove (19) is opened at the upper end of the base (15), a limit plate (20) is fixedly installed on the side of the upper end of the sliding groove (19), a sliding block (21) is slidably installed inside the sliding groove (19), the upper end of the sliding block (21) is fixedly connected to a fixed plate (22), and the fixed plate (22) is fixedly connected to the bottom end of the box body (11).

4. The photovoltaic energy storage inverter according to claim 1, characterized in that: The locking structure comprises a fixed rod (24) and a locking rod (28). The fixed rod (24) is fixedly mounted on the front end top of the inner circulation box (23). The locking rod (28) is fixedly mounted on one end of the outer plate (27) close to the rotating rod (25). The locking rod (28) is located below the fixed rod (24). A rotating rod (25) is rotatably mounted inside the fixed rod (24). Both ends of the rotating rod (25) are fixedly connected to the movable locking block (26). A positioning component is provided on one side of the drawer slot opened by the inner circulation box (23).

5. The photovoltaic energy storage inverter according to claim 4, characterized in that: The positioning assembly includes a positioning groove (29), the positioning groove (29) is opened at the front end of the inner circulation box (23), the positioning groove (29) is located on one side of the drawer slot, a positioning block (31) is slidably installed inside the positioning groove (29), and the positioning block (31) is fixedly installed on one side of the bottom plate (30).

6. The photovoltaic energy storage inverter according to claim 1, characterized in that: The inner circulation box (23) is provided with wind-blocking plates (32) and speed-limiting plates (34) alternately and equidistantly. Below the speed-limiting plates (34) and the wind-blocking plates (32), a plurality of air holes (33) are provided at the upper end of the wind-blocking plates (32). The air holes (33) pass through the lower end of the wind-blocking plates (32), and the inner diameter of the air inlet end of the air hole (33) is larger than the inner diameter of the air outlet end.

7. The photovoltaic energy storage inverter according to claim 6, characterized in that: The upper end of the speed limiting plate (34) is provided with a mounting opening (35), and a rotating plate (36) is rotatably mounted inside the mounting opening (35).

8. The photovoltaic energy storage inverter according to claim 1, characterized in that: A transparent observation window is installed at the front end of the box door (12).

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