Photovoltaic energy storage bidirectional converter equipment
By combining magnetic adsorption and threaded connection, along with the design of the filter screen, the inconvenience of installation and dust prevention of photovoltaic energy storage bidirectional converters are solved, enabling convenient installation, maintenance, and stable operation of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG JINHAI ENVIRONMENTAL PROTECTION IND DEVELOPMENT GROUP CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
Existing photovoltaic energy storage bidirectional converters are inconvenient and not secure to install, and lack effective dust prevention measures, which affect the service life and operational stability of the equipment.
A combination of magnetic adsorption and threaded connection is used to securely fix the converter body to the base. A filter screen is installed on the side of the converter body to prevent dust and debris from entering. The filter screen can be quickly installed and removed by the cooperation of the plug and tension spring.
It enables convenient installation and disassembly of the converter, facilitating transportation and maintenance, while effectively preventing dust and debris from entering, ensuring the heat dissipation performance and stable operation of the equipment.
Smart Images

Figure CN224264846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of converter technology, and in particular to a photovoltaic energy storage bidirectional converter device. Background Technology
[0002] Converters are key devices for converting electrical energy into its form. In photovoltaic energy storage systems, bidirectional photovoltaic energy storage converters play a crucial role in converting alternating current (AC) generated by solar energy into direct current (DC) for storage in batteries, and inverting DC power from batteries back into AC power for grid connection or load supply. With the rapid development of the photovoltaic energy storage industry, higher requirements are being placed on the ease of installation and operational reliability of bidirectional converters.
[0003] In existing technologies, the assembly process of current bidirectional energy storage converters is generally fixed by bolts during actual use. The fixing method is cumbersome and not secure. Over time, it will rust and corrode, making installation and maintenance inconvenient. In addition, the converter generates heat during operation, which needs to be dissipated through heat dissipation holes. However, existing equipment often lacks effective dust prevention measures. Dust and debris can easily enter the equipment through the heat dissipation holes and adhere to the surface of electronic components. This not only affects the heat dissipation effect but may also cause faults such as short circuits, reducing the service life and operational stability of the equipment. Therefore, improvements are needed. Utility Model Content
[0004] The purpose of this utility model is to solve the problems of inconvenient installation and maintenance and lack of effective dust prevention measures in the existing technology, and to propose a photovoltaic energy storage bidirectional converter device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a photovoltaic energy storage bidirectional converter device, comprising a fixed base and a converter body, wherein heat dissipation holes are provided on the side of the converter body, a protrusion is fixedly installed on the lower surface of the converter body, a groove is provided on the side of the fixed base, an installation plate is slidably connected to the inside of the fixed base, a pin is fixedly connected to the side of the installation plate, a pin hole is provided on the side of the protrusion, a moving block is fixedly connected to the lower surface of the installation plate, a bidirectional lead screw is rotatably connected to the inside of the fixed base, a sliding rod is fixedly installed inside the fixed base, a crank is fixedly installed at one end of the bidirectional lead screw, a magnet A is fixedly installed on the side of the protrusion, a magnet B is fixedly installed on the inner side of the fixed base, an installation frame is fixedly installed on the side of the converter body, and a filter screen is provided inside the installation frame.
[0006] Preferably, the bump and the groove are slidably connected, and the magnet A and the magnet B are attracted to each other.
[0007] Preferably, the pin is slidably connected to the pin hole.
[0008] Preferably, the bidirectional lead screw is threadedly connected to the moving block, and the slide rod is slidably connected to the moving block.
[0009] Preferably, the filter screen is fixedly connected to a plug on its side, the mounting frame has a slot on its surface, a fixing plate is fixedly installed on the side of the mounting frame, a limit rod is slidably connected inside the fixing plate, a limit hole is opened on the side of the plug, a limit plate is fixedly installed on the surface of the limit rod, a tension spring is sleeved on the surface of the limit rod, and a pull head is fixedly installed at one end of the limit rod.
[0010] Preferably, the insert block is slidably connected to the slot, and the limiting rod is slidably connected to the limiting hole.
[0011] Preferably, one end of the tension spring is fixedly connected to the side of the limiting plate, and the other end of the tension spring is fixedly connected to the inner side of the fixing plate.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0013] 1. In this utility model, the crank handle drives the bidirectional lead screw to rotate, causing the moving block to slide along the slide bar, thereby pushing the mounting plate to move. The pin on the side of the mounting plate is inserted into the pin hole on the side of the protrusion. At the same time, magnets A and B attract each other, realizing the stable fixation of the converter body to the fixed base. This facilitates the installation and disassembly of the converter body, and makes it easier to transport, maintain and replace the equipment. In addition, a filter screen is set in the mounting frame on the side of the converter body, which can effectively block dust and debris from entering the interior of the converter body through the heat dissipation holes, protecting the internal electronic components.
[0014] 2. In this utility model, by inserting the plug into the slot, pulling the pull head compresses the tension spring of the limiting rod. After the plug is in place, the pull head is released, the tension spring resets, and pushes the limiting rod into the limiting hole on the side of the plug, thus realizing the quick installation and fixing of the filter screen. When disassembling, pulling the pull head pulls out the limiting rod to remove the filter screen, which facilitates regular cleaning and replacement of the filter screen and ensures good heat dissipation performance and stable operation of the equipment. Attached Figure Description
[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a photovoltaic energy storage bidirectional converter device;
[0016] Figure 2 This utility model provides a partial structural diagram of a fixed base, mounting plate, pin, and moving block for a photovoltaic energy storage bidirectional converter device;
[0017] Figure 3 This utility model provides an exploded view of the filter screen of a photovoltaic energy storage bidirectional converter device;
[0018] Figure 4 This utility model proposes a photovoltaic energy storage bidirectional converter device. Figure 3 Enlarged view of point A in the middle.
[0019] Legend: 1. Fixed base; 2. Converter body; 201. Heat dissipation hole; 3. Protrusion; 4. Groove; 5. Mounting plate; 6. Pin; 7. Pin hole; 8. Moving block; 9. Two-way lead screw; 10. Slide rod; 11. Handle; 101. Magnet A; 102. Magnet B; 12. Mounting frame; 13. Filter screen; 14. Insert block; 15. Slot; 16. Fixed plate; 17. Limiting rod; 18. Limiting hole; 19. Limiting plate; 20. Tension spring; 21. Pull head. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a photovoltaic energy storage bidirectional converter device, including a fixed base 1 and a converter body 2. The converter body 2 has heat dissipation holes 201 on its side, and a protrusion 3 is fixedly installed on the lower surface of the converter body 2. The fixed base 1 has a groove 4 on its side, and a mounting plate 5 is slidably connected inside the fixed base 1. A pin 6 is fixedly connected to the side of the mounting plate 5, and a pin hole 7 is opened on the side of the protrusion 3. A moving block 8 is fixedly connected to the lower surface of the mounting plate 5, and a bidirectional lead screw 9 is rotatably connected inside the fixed base 1. A slide rod 10 is fixedly installed inside the 1 unit. A crank 11 is fixedly installed at one end of the bidirectional lead screw 9. A magnet A101 is fixedly installed on the side of the protrusion 3. A magnet B102 is fixedly installed on the inside of the fixed base 1. A mounting frame 12 is fixedly installed on the side of the converter body 2. A filter screen 13 is provided inside the mounting frame 12. The protrusion 3 and the groove 4 are slidably connected. The magnet A101 and the magnet B102 are attracted to each other. The pin 6 and the pin hole 7 are slidably connected. The bidirectional lead screw 9 is threadedly connected to the moving block 8. The slide rod 10 is slidably connected to the moving block 8.
[0023] In this embodiment, by turning the crank handle 11, the bidirectional lead screw 9 is rotated, causing the moving block 8 to slide along the slide bar 10, thereby pushing the mounting plate 5 to move. The pin 6 on the side of the mounting plate 5 is inserted into the pin hole 7 on the side of the protrusion 3. At the same time, the magnets A101 and B102 attract each other, realizing the stable fixation of the converter body 2 and the fixed base 1, which facilitates the installation and disassembly of the converter body 2, and facilitates the transportation, maintenance and replacement of the equipment. In addition, a filter screen 13 is set in the mounting frame 12 on the side of the converter body 2, which can effectively block dust and debris from entering the interior of the converter body 2 through the heat dissipation hole 201, protecting the internal electronic components.
[0024] Example 2: As Figures 1-4 As shown, a plug 14 is fixedly connected to the side of the filter screen 13, a slot 15 is provided on the surface of the mounting frame 12, a fixing plate 16 is fixedly installed on the side of the mounting frame 12, a limit rod 17 is slidably connected inside the fixing plate 16, a limit hole 18 is provided on the side of the plug 14, a limit plate 19 is fixedly installed on the surface of the limit rod 17, a tension spring 20 is sleeved on the surface of the limit rod 17, a pull head 21 is fixedly installed at one end of the limit rod 17, the plug 14 is slidably connected to the slot 15, the limit rod 17 is slidably connected to the limit hole 18, one end of the tension spring 20 is fixedly connected to the side of the limit plate 19, and the other end of the tension spring 20 is fixedly connected to the inner side of the fixing plate 16.
[0025] In this embodiment, by inserting the plug 14 into the slot 15, pulling the pull head 21 compresses the tension spring 20 by the limiting rod 17. After the plug 14 is in place, the pull head 21 is released, and the tension spring 20 returns to its original position, pushing the limiting rod 17 into the limiting hole 18 on the side of the plug 14. This achieves quick installation and fixation of the filter screen 13. Similarly, when disassembling, pulling the pull head 21 pulls out the limiting rod 17 to remove the filter screen 13, which facilitates regular cleaning and replacement of the filter screen 13, ensuring good heat dissipation performance and stable operation of the equipment.
[0026] The working principle of this embodiment is as follows: When installing the photovoltaic energy storage bidirectional converter device, first align the protrusion 3 on the lower surface of the converter body 2 with the groove 4 on the side of the fixed base 1. Utilizing the sliding connection between the protrusion 3 and the groove 4, the converter body 2 is initially embedded into the fixed base 1. At this time, the magnet A101 on the side of the protrusion 3 and the magnet B102 on the inner side of the fixed base 1 attract each other, completing the initial positioning of the converter body 2 and the fixed base 1. Next, rotate the handle 11 at one end of the bidirectional lead screw 9. Since the bidirectional lead screw 9 is threadedly connected to the moving block 8, and the moving block 8 is slidably connected to the slide rod 10, the rotation of the handle 11 drives the bidirectional lead screw 9 to rotate, causing the moving block 8 to slide smoothly along the slide rod 10 inside the fixed base 1. This, in turn, pushes the mounting plate 5 connected to the moving block 8 to move until the pin 6 on the side of the mounting plate 5 is accurately inserted into the pin hole 7 on the side of the protrusion 3, thus achieving a stable connection between the converter body 2 and the fixed base 1. In daily use, the heat dissipation holes 201 on the side of the converter body 2 are used for internal heat dissipation. The filter screen 13 in the mounting frame 12 can effectively block dust and debris from entering. When it is necessary to clean or replace the filter screen 13, pull the pull head 21 at one end of the limiting rod 17 so that the limiting rod 17 overcomes the elastic force of the tension spring 20 and is pulled out from the limiting hole 18 on the side of the plug block 14. At this time, the limiting constraint between the plug block 14 and the slot 15 is lost. Slide the plug block 14 out of the slot 15 and the filter screen 13 can be taken out for cleaning or replacement. When installing a new filter screen 13, first align the plug block 14 on the side of the filter screen 13 with the slot 15 on the surface of the mounting frame 12 and insert it. After the plug block 14 is fully inserted, release the pull head 21, the tension spring 20 returns to its original position, and push the limiting rod 17 into the limiting hole 18 on the side of the plug block 14 to complete the quick installation and fixation of the filter screen 13, ensuring good heat dissipation performance and stable operation of the equipment.
[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A photovoltaic energy storage bidirectional converter device, comprising a fixed base (1) and a converter body (2), characterized in that: The converter body (2) has heat dissipation holes (201) on its side. A protrusion (3) is fixedly installed on the lower surface of the converter body (2). A groove (4) is opened on the side of the fixed base (1). A mounting plate (5) is slidably connected inside the fixed base (1). A pin (6) is fixedly connected to the side of the mounting plate (5). A pin hole (7) is opened on the side of the protrusion (3). A moving block (8) is fixedly connected to the lower surface of the mounting plate (5). The base (1) is rotatably connected to a two-way lead screw (9), the fixed base (1) is fixedly installed with a slide rod (10), one end of the two-way lead screw (9) is fixedly installed with a crank handle (11), the side of the protrusion (3) is fixedly installed with a magnet A (101), the inside of the fixed base (1) is fixedly installed with a magnet B (102), the side of the converter body (2) is fixedly installed with a mounting frame (12), and the inside of the mounting frame (12) is provided with a filter screen (13).
2. The photovoltaic energy storage bidirectional converter device according to claim 1, characterized in that: The protrusion (3) and the groove (4) are slidably connected, and the magnet A (101) and the magnet B (102) are attracted to each other.
3. The photovoltaic energy storage bidirectional converter device according to claim 1, characterized in that: The pin (6) is slidably connected to the pin hole (7).
4. The photovoltaic energy storage bidirectional converter device according to claim 1, characterized in that: The bidirectional lead screw (9) is threadedly connected to the moving block (8), and the slide rod (10) is slidably connected to the moving block (8).
5. The photovoltaic energy storage bidirectional converter device according to claim 1, characterized in that: The filter screen (13) is fixedly connected to the side of the insert block (14), the surface of the mounting frame (12) is provided with a slot (15), the side of the mounting frame (12) is fixedly installed with a fixing plate (16), the inside of the fixing plate (16) is slidably connected with a limit rod (17), the side of the insert block (14) is provided with a limit hole (18), the surface of the limit rod (17) is fixedly installed with a limit plate (19), the surface of the limit rod (17) is sleeved with a tension spring (20), and one end of the limit rod (17) is fixedly installed with a pull head (21).
6. The photovoltaic energy storage bidirectional converter device according to claim 5, characterized in that: The insert (14) is slidably connected to the slot (15), and the limiting rod (17) is slidably connected to the limiting hole (18).
7. The photovoltaic energy storage bidirectional converter device according to claim 5, characterized in that: One end of the tension spring (20) is fixedly connected to the side of the limiting plate (19), and the other end of the tension spring (20) is fixedly connected to the inner side of the fixing plate (16).