Photovoltaic charging device
The plug-in limiting structure solves the problem of difficult installation of solar panel brackets and charging piles, achieving efficient and stable installation and reducing construction costs and material waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR SECOND ENG BUREAU LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, the installation of solar panel brackets and charging piles is often difficult due to the misalignment of expansion bolts or pre-embedded screws, which affects the progress and cost of new energy facility construction.
The system employs a plug-in limiting structure, including a plug frame, slot, positioning rod, and column rod, to replace the traditional expansion bolts or pre-embedded screw fixing method, ensuring accurate positioning of solar panels and charging piles.
It improves installation efficiency, reduces construction time and material waste, protects the surface of the prefabricated base, and avoids installation difficulties caused by drilling errors.
Smart Images

Figure CN224184141U_ABST
Abstract
Description
A photovoltaic charging device Technical Field
[0001] This utility model is a photovoltaic charging device, belonging to the field of photovoltaic technology. Background Technology
[0002] Photovoltaic charging is a technology that uses solar photovoltaic power generation to convert solar energy into electrical energy and charge various devices or energy storage devices. In the construction of new energy facilities, solar panels and charging piles are complementary supporting equipment, usually installed on prefabricated bases. The solar panel supports and charging piles are generally fixed to the surface of the prefabricated base using expansion bolts. During installation, precise holes must be drilled in the prefabricated base before the expansion bolts are inserted and tightened. However, if errors occur during drilling, causing the expansion bolts to fail to securely fix the base, the placement of the solar panel supports and charging piles will be severely limited due to the limited and immutable surface area of the prefabricated base. Failure to drill the pre-set installation points on the prefabricated base will directly hinder the normal installation of the solar panel supports and charging piles, not only delaying the construction progress but also potentially causing material waste and increased costs due to repeated adjustments to the installation position, negatively impacting the quality and efficiency of the entire new energy facility construction. Besides expansion bolt anchoring, another method is to pre-embed bolts in the prefabricated base. However, there are also some problems with pre-embedded screws. For example, the screw position is prone to deviation, which will also bring difficulties to the subsequent installation of solar panel brackets and charging piles, and affect the smooth progress of the construction of new energy facilities. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a photovoltaic charging device to solve the problems mentioned in the background technology. This utility model adopts the plug-in limiting method to replace the method of installing expansion bolts or pre-embedded screws on the prefabricated base, so as to avoid the situation that charging piles and other devices cannot be installed in the preset area.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic charging device includes a prefabricated base, an electrical control box mounted on the upper surface of the prefabricated base, a tilted solar panel mounted on the top of the electrical control box, an L-shaped frame mounted on the lower end of the electrical control box, a charging pile mounted on the vertical part of the L-shaped frame, and a insertion frame mounted on the lower surface of the horizontal part of the L-shaped frame. The area of the prefabricated base covered by the L-shaped frame is recessed to form a slot, and the insertion frame is inserted into the slot. One side of the prefabricated base... An insertion port is formed through the prefabricated base, which communicates with the slot. Two parallel sides of the insertion frame each have a through-hole aligned with the insertion port. A positioning rod is inserted into the insertion port, passing through the through-hole. A protective plate is laid on the upper surface of the prefabricated base, and multiple pillars are installed on the lower surface of the protective plate. Multiple vertical holes that mate with the pillars are recessed downwards on the upper surface of the prefabricated base, and these vertical holes communicate with the insertion port. Multiple positioning holes that mate with the pillars are opened on the upper surface of the positioning rod, and the lower end of the pillar is inserted into the positioning hole.
[0005] Furthermore, the lower end of the column is wrapped with a rubber sleeve, the outer diameter of which is the same as the inner diameter of the positioning hole.
[0006] Furthermore, the positioning rod has a rectangular cross-section, and the insertion port has a rectangular cross-section.
[0007] Furthermore, the four corners of the positioning rod are all machined with a first rounded corner, and the four corners inside the socket are all machined with a second rounded corner.
[0008] Furthermore, a bracket is installed on the top of the electrical control box, and the solar panel is connected to the bracket by fasteners.
[0009] Furthermore, the bottom of the prefabricated base is provided with a support for burying in the ground, and the support and the prefabricated base are integrally formed.
[0010] Furthermore, the bottom of the electrical control box located on the prefabricated base is provided with an inlet port aligned with the upper cable entry port. The area of the prefabricated base covered by the electrical control box is recessed to form the upper cable entry port, and the bottom of the support is recessed to form the lower cable entry port aligned with the upper cable entry port.
[0011] Furthermore, the control box is provided with a storage tray on the side facing away from the charging pile, and the storage tray is connected and fixed to the control box.
[0012] Furthermore, the four corners of the prefabricated base are all machined with a third rounded corner, and the corners of the guard plate are machined with a fourth rounded corner.
[0013] Furthermore, the protective plate has a "U" shaped structure.
[0014] The beneficial effects of this utility model are:
[0015] a. Instead of drilling holes in the prefabricated base to install expansion bolts or pre-embedded screws, a plug-in limiting structure composed of a frame, slot, positioning rod, and column is adopted. This avoids installation problems caused by drilling errors and ensures that the structure formed by the charging pile and solar panel can be smoothly installed in the preset area. This greatly improves installation efficiency and reduces construction time and costs. In other words, the plug-in limiting method replaces the method of installing expansion bolts on the prefabricated base, avoiding situations where the charging pile and other components cannot be installed in the preset area.
[0016] b. Lay a protective plate on the precast base, and insert the column rod on the protective plate through the vertical hole and into the positioning hole, thereby restricting the relative position of the positioning rod and the precast base, and completing the insertion of the protective plate and the precast base. Under the protection of the protective plate, the surface of the precast base is prevented from being damaged, thus playing a role in protecting the surface of the precast base. Attached Figure Description
[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0018] Figure 1 is a structural schematic diagram of a photovoltaic charging device according to this utility model;
[0019] Figure 2 is a perspective view of a photovoltaic charging device according to this utility model from another angle.
[0020] Figure 3 is an exploded assembly diagram of the positioning rod, L-shaped plate, protective plate, charging pile and electrical control box in a photovoltaic charging device of this utility model.
[0021] Figure 4 is a perspective view of a prefabricated base in a photovoltaic charging device of this utility model;
[0022] In the diagram: 1-Prefabricated base, 2-Positioning rod, 3-Guard plate, 4-Support, 5-L-shaped plate, 6-Charging pile, 7-Solar panel, 8-Electrical control box, 9-Storage tray, 10-Bracket, 11-Insert frame, 12-Through hole, 13-Positioning hole, 14-Cable inlet, 15-Column rod, 16-Slot, 17-Upper cable inlet, 18-Vertical hole, 19-Socket. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Please refer to Figures 1-4. This utility model provides a technical solution: a photovoltaic charging device, including a prefabricated base 1, an electrical control box 8 installed on the upper surface of the prefabricated base 1, a bracket 10 installed on the top of the electrical control box 8, a solar panel 7 connected to the bracket 10 by fasteners, an L-shaped frame 5 installed at the lower end of the electrical control box 8, a charging pile 6 installed on the vertical part of the L-shaped frame 5, the L-shaped frame 5 serves to connect the charging pile 6 and the electrical control box 8, a support 4 integrally formed at the bottom of the prefabricated base 1 for burying in the ground, an upper cable pass-through port 17 formed by the recess in the area of the prefabricated base 1 covered by the electrical control box 8, a lower cable pass-through port aligned with the upper cable pass-through port 17 formed by the recess at the bottom of the support 4, and an inlet port 14 aligned with the upper cable pass-through port 17 at the bottom of the electrical control box 8. The design of the upper cable pass-through port 17, the lower cable pass-through port and the inlet port 14 facilitates the insertion of cables into the electrical control box 8, and a storage tray 9 connected and fixed to the electrical control box 8 is provided on the side of the electrical control box 8 away from the charging pile 6.
[0025] Referring to Figures 1-4, a frame 11 is installed on the lower horizontal surface of the L-shaped frame 5. The area of the prefabricated base 1 covered by the L-shaped frame 5 is recessed to form a slot 16. The frame 11 is inserted into the slot 16. One side of the prefabricated base 1 forms a rectangular inlet 19 that penetrates the prefabricated base 1. The inlet 19 communicates with the slot 16. Each of the four corners of the inlet 19 has a second rounded corner. Two parallel sides of the frame 11 each have through-holes 12 aligned with the inlet 19. A rectangular positioning rod 2 is inserted into the inlet 19. Each of the four corners of the positioning rod 2 has a first rounded corner. Positioning rod 2 passes through through opening 12. A protective plate 3 is laid on the upper surface of the prefabricated base 1, and multiple columns 15 are installed on the lower surface of the protective plate 3. Multiple vertical holes 18 are recessed downwards on the upper surface of the prefabricated base 1 to mate with the columns 15. The vertical holes 18 communicate with the insertion opening 19. Multiple positioning holes 13 are formed on the upper surface of the positioning rod 2 to mate with the columns 15. The lower end of the column 15 is inserted into the positioning hole 13, and a rubber sleeve is wrapped around the lower end of the column 15. The outer diameter of the rubber sleeve is the same as the inner diameter of the positioning hole 13. The rubber sleeve increases the friction and tightness between the column 15 and the positioning hole 13, making the positioning more stable and thus ensuring the overall photovoltaic system's stability. To ensure the stability of the charging device, the four corners of the prefabricated base 1 are machined with a third rounded corner, and the corners of the protective plate 3 are machined with a fourth rounded corner. The protective plate 3 has a "U"-shaped structure. The third and fourth rounded corners of the prefabricated base 1 and the protective plate 3 are machined with third and fourth rounded corners respectively, which can effectively prevent personnel from being scratched by sharp edges during installation and use. The method of drilling holes in the prefabricated base 1 to install expansion bolts or pre-embedded screws is abandoned. Instead, a plug-in limiting structure composed of a plug frame 11, a slot 16, a positioning rod 2, and a column rod 15 is adopted to avoid installation problems caused by drilling errors and to ensure the structural stability of the charging pile 6 and the solar panel 7. Successful installation in the preset area greatly improves installation efficiency and reduces construction time costs. The plug-in limiting method replaces the method of installing expansion bolts on the prefabricated base 1, avoiding situations where charging piles 6 cannot be installed in the preset area. A protective plate 3 is laid on the prefabricated base 1, and the column rod 15 on the protective plate 3 passes through the vertical hole 18 and is inserted into the positioning hole 13, thereby limiting the relative position of the positioning rod 2 and the prefabricated base 1. At the same time, the plug-in connection between the protective plate 3 and the prefabricated base 1 is completed. Under the protection of the protective plate 3, the surface of the prefabricated base 1 is prevented from being damaged, thus protecting the surface of the prefabricated base 1.
[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A photovoltaic charging device comprising a preformed base (1), characterized in that: An electrical control box (8) is installed on the upper surface of the prefabricated base (1). A solar panel (7) is installed on the top of the electrical control box (8) at an angle. An L-shaped frame (5) is installed at the lower end of the electrical control box (8). A charging pile (6) is installed on the vertical part of the L-shaped frame (5). A insertion frame (11) is installed on the lower surface of the horizontal part of the L-shaped frame (5). The area of the prefabricated base (1) covered by the L-shaped frame (5) is recessed to form a slot (16). The insertion frame (11) is inserted into the slot (16). A through-hole (19) is formed on one side of the prefabricated base (1). The through-hole (19) communicates with the slot (16). The insertion frame (11) 11) Two parallel sides are provided with through holes (12) aligned with the socket (19). A positioning rod (2) is inserted into the socket (19) and passes through the through hole (12). A protective plate (3) is laid on the upper surface of the prefabricated base (1). Multiple columns (15) are installed on the lower surface of the protective plate (3). Multiple vertical holes (18) that cooperate with the columns (15) are recessed downward on the upper surface of the prefabricated base (1). The vertical holes (18) communicate with the socket (19). Multiple positioning holes (13) that cooperate with the columns (15) are provided on the upper surface of the positioning rod (2). The lower end of the column (15) is inserted into the positioning hole (13).
2. The photovoltaic charging device according to claim 1, characterized in that: The lower end of the column rod (15) is wrapped with a rubber sleeve, the outer diameter of which is the same as the inner diameter of the positioning hole (13).
3. A photovoltaic charging device according to claim 1, wherein: The positioning rod (2) has a rectangular cross-section, and the socket (19) has a rectangular cross-section.
4. A photovoltaic charging device according to claim 1, wherein: The four corners of the positioning rod (2) are all machined with a first rounded corner, and the four corners of the socket (19) are all machined with a second rounded corner.
5. A photovoltaic charging device according to claim 1, wherein: The electrical control box (8) is equipped with a bracket (10) on top, and the solar panel (7) is connected to the bracket (10) by fasteners.
6. A photovoltaic charging device according to claim 1, wherein: The prefabricated base (1) has a support (4) at the bottom for burying in the ground, and the support (4) and the prefabricated base (1) are integrally formed.
7. A photovoltaic charging device according to claim 6, wherein: The bottom of the electrical control box (8) located on the prefabricated base (1) is provided with a wire inlet (14) aligned with the upper wire inlet (17). The area of the prefabricated base (1) covered by the electrical control box (8) is recessed to form the upper wire inlet (17), and the bottom of the support (4) is recessed to form the lower wire inlet aligned with the upper wire inlet (17).
8. A photovoltaic charging device according to claim 1, wherein: The electrical control box (8) is provided with a storage tray (9) on the side away from the charging pile (6), and the storage tray (9) is connected and fixed to the electrical control box (8).
9. A photovoltaic charging device according to claim 1, characterized in that: The four corners of the prefabricated base (1) are all machined with a third rounded corner, and the corners of the guard plate (3) are machined with a fourth rounded corner.
10. A photovoltaic charging device according to claim 9, characterized in that: The protective plate (3) has a "U" shaped structure.