Photovoltaic household energy storage electrical junction box structure
By designing the structure of the photovoltaic household energy storage electrical junction box and adopting flexible wiring components and branching plates, the problems of complex wiring and messy circuits in traditional junction boxes are solved, realizing convenient and efficient power connection and safe power transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 黄冏
- Filing Date
- 2025-03-10
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional photovoltaic household energy storage electrical junction boxes have complex wiring methods that cannot meet the needs for quick and convenient wiring. They also lack reasonable wiring and branching functions, resulting in messy wiring and affecting power transmission efficiency and safety.
A photovoltaic household energy storage electrical junction box structure was designed, including components such as a foot plate, grounding post, protection box, electrical junction box body, distribution box, electrical switch box and DC circuit breaker. It achieves convenient connection and orderly wiring through flexible wiring components and distribution plate, and is equipped with protective door and heat dissipation holes for easy maintenance and heat dissipation.
It improves wiring efficiency and stability, reduces wiring clutter, enhances the reliability and safety of power transmission, facilitates maintenance and inspection, and reduces the risk of failure.
Smart Images

Figure CN224164614U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of junction box structure technology, and more specifically, it relates to a photovoltaic household energy storage electrical junction box structure. Background Technology
[0002] In the process of photovoltaic household energy storage, electrical junction boxes, as a commonly used power connection and distribution device, are widely used in the line integration of household photovoltaic energy storage systems to facilitate users to achieve safe and stable power transmission and distribution. However, the wiring method of traditional devices is relatively complex and cannot meet the needs of fast and convenient wiring, increasing the time cost of installation and maintenance. In addition, traditional devices lack reasonable wiring and branching functions. If they are not properly organized, they can easily cause the lines to be messy, which will affect the power transmission and cause losses, reducing the working efficiency of traditional devices. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a photovoltaic household energy storage electrical junction box structure, which solves the technical problem that the wiring method of traditional devices is relatively complex and cannot meet the requirements for fast and convenient wiring.
[0004] The purpose and function of this utility model's photovoltaic household energy storage electrical junction box structure are achieved through the following specific technical means:
[0005] A photovoltaic household energy storage electrical junction box structure includes multiple sets of mounting feet and an electrical junction box body. The mounting feet are provided with grounding posts, and the grounding posts are provided with protective boxes. The electrical junction box body is located on the protective boxes, and the protective boxes are provided with distribution boxes. The electrical junction box body is provided with electrical switch boxes, the distribution boxes are provided with DC circuit breakers, and the electrical switch boxes are provided with wiring components.
[0006] According to a preferred embodiment, the wiring assembly includes a connecting induction post, one end of which is connected to the electrical switch box, and a spring cylinder is elastically connected to one side of the connecting induction post. Both the connecting induction post and the spring cylinder have connection holes on one side.
[0007] According to a preferred embodiment, the junction box is provided with a fixing plate, the fixing plate is provided with multiple sets of insulating guide posts, and the multiple sets of insulating guide posts are fitted with junction plate.
[0008] According to a preferred embodiment, multiple sets of the placement foot plates are detachably connected to the ground-mounting column, the protective box is slidably connected to the ground-mounting column, the ground-mounting column has sliding grooves on both sides, and the ground-mounting column is provided with multiple sets of first nuts.
[0009] According to a preferred embodiment, a protective door is provided on one side of the protective box, the protective door is rotatably connected to the protective box, a snap-fit block is provided on one side of the protective door, a snap-fit groove is provided on one side of the protective box, and a second nut is provided on one side of the protective box, the second nut being connected to the protective box and the snap-fit block.
[0010] According to a preferred embodiment, the DC circuit breaker is connected to the electrical switch box, and the electrical junction box body and the protection box have multiple sets of inlet holes, and a grounding post is provided on one side of the electrical junction box body.
[0011] According to a preferred embodiment, the protection box is provided with multiple sets of heat dissipation holes, the electrical junction box body is provided with a fixing frame, the electrical switch box is fixed on the fixing frame, and the electrical junction box body is provided with wiring holes.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. This device, through its wiring assembly, allows users to connect wires more conveniently and efficiently, improving wiring efficiency. After connecting the wires, the elasticity of the spring-loaded sleeve enhances the stability of the connection, eliminating concerns about loose connections and improving the reliability of the device's wiring.
[0014] 2. When using this device, users can easily inspect and maintain the internal components by opening the protective door, making operation more convenient and improving the maintenance convenience of the device. Furthermore, the wiring rack allows the device to organize the wiring clearly and orderly, reducing wiring chaos and improving the wiring neatness of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the assembled structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of this utility model;
[0018] Figure 4 yes Figure 2 Enlarged view of area a in the middle.
[0019] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0020] 11. Footplate; 12. Grounding post; 13. Protection box; 14. Electrical junction box body; 15. Distribution box; 16. Electrical switch box; 17. DC circuit breaker; 18. Connecting induction post; 19. Spring cartridge; 21. Connection hole; 22. Fixing plate; 23. Insulating guide post; 24. Distribution board; 25. First nut; 26. Protection door; 27. Clip block; 28. Second nut; 29. Inlet hole; 31. Heat dissipation hole; 32. Fixing frame; 33. Wiring hole; 34. Grounding post. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.
[0022] Example:
[0023] like Figures 1 to 2As shown, this utility model provides a photovoltaic household energy storage electrical junction box structure, including multiple sets of mounting feet 11. These mounting feet 11 provide a stable support foundation for the entire device, and in conjunction with the ground-level posts 12, effectively isolate the device from the ground, avoiding the influence of ground moisture and debris. The protective box 13 installed on the ground-level posts 12 provides the first layer of protection for the internal electrical junction box body 14, enhancing the safety of the device. The electrical junction box body 14 is located on the protective box 13, ensuring the stable placement of the core components. The distribution box 15 on the protective box 13 is used for the reasonable distribution and organization of lines. The DC circuit breaker 17 installed on the distribution box 15 can promptly disconnect the circuit in case of abnormal current, ensuring the safe operation of the system. The electrical switch box 16 on the electrical junction box body 14 realizes power connection and control through wiring components. One end of the connecting induction post 18 in the wiring assembly is connected to the electrical switch box 16, ensuring the stability of power transmission. The elastically connected spring cylinder 19 on one side of the connecting induction post 18, and the connection hole 21 on both sides, facilitate wire access, and the elasticity of the spring cylinder 19 enhances the stability of the connection. The fixing plate 22 on the junction box 15 provides a secure mounting position for multiple sets of insulating guide posts 23. The wiring distribution plate 24 fitted on the insulating guide posts 23 can clearly and orderly classify and arrange the lines, improving the efficiency and safety of line management. The detachable connection between multiple sets of foot plates 11 and grounding posts 12 facilitates the installation and disassembly of the device, as well as subsequent maintenance and replacement. The sliding connection between the protection box 13 and the grounding post 12, along with the sliding grooves on both sides of the grounding post 12 and the multiple sets of first nuts 25, allows the position of the protection box 13 to be adjusted and fixed to meet different installation requirements. A protective door 26 is provided on one side of the protective box 13, which is rotatably connected to the protective box 13, allowing users to easily open it for internal inspection and maintenance. A locking block 27 on one side of the protective door 26 cooperates with a locking groove on the side of the protective box 13, and the second screw nut 28 on the side of the protective box 13 further ensures the tightness and safety of the protective door 26 when closed. The connection between the DC circuit breaker 17 and the electrical switch box 16 enables effective control and protection of the circuit. Multiple sets of inlet holes 29 on the electrical junction box body 14 and the protective box 13 provide channels for the introduction of lines, ensuring smooth power input. A grounding post 34 on one side of the electrical junction box body 14 enhances the grounding protection function of the device and improves safety. Multiple sets of heat dissipation holes 31 on the protective box 13 can effectively dissipate the heat generated during the operation of the device, preventing overheating damage. A fixing frame 32 on the electrical junction box body 14 provides a stable mounting position for the electrical switch box 16, ensuring it does not loosen during operation. The wiring holes 33 on the electrical junction box body 14 facilitate the connection and exit of wires, making the wiring connection of the entire device more standardized and orderly.
[0024] like Figures 2 to 4 As shown, when using the device, the user allows multiple sets of support plates 11 to firmly support the entire device, ensuring its stability in various environments. The multiple sets of support plates 11 can be connected to the ground with screws. The ground-level posts 12 on the support plates 11 effectively isolate the device from the ground, preventing moisture and impurities from the ground from damaging the internal components of the device, and providing initial protection for the internal electrical components.
[0025] The protective box 13 on the grounding post 12 further enhances the protection of the internal electrical junction box body 14, reducing interference from external environmental factors and ensuring the safe operation of the electrical junction box body 14. The electrical junction box body 14, located on the protective box 13, is a core component, bearing the key functions of power connection and distribution. The distribution box 15 on the protective box 13 can rationally subdivide and organize complex circuits, making the circuit layout clearer and more orderly. The DC circuit breaker 17 on the distribution box 15 can quickly disconnect the circuit in case of abnormal current, such as overload or short circuit, preventing the fault from escalating and protecting the safety of the entire electrical system. The electrical switch box 16 on the electrical junction box body 14 achieves precise power connection and effective control through wiring components.
[0026] One end of the connecting induction post 18 in the wiring assembly is connected to the electrical switch box 16, ensuring the stability and reliability of power transmission. The spring-loaded sleeve 19, elastically connected to one side of the connecting induction post 18, provides a certain degree of elastic buffering when the wire is connected. The connection hole 21 on one side of the connecting induction post 18 and the spring-loaded sleeve 19 facilitates wire connection, while the elasticity of the spring-loaded sleeve 19 enhances the stability of the wire connection, reducing the risk of loosening and poor contact. The protective door 26 on one side of the protection box 13 is rotatably connected to the protection box 13. This design allows users to easily open the protective door 26 to inspect, maintain, and repair the internal electrical components and wiring. The locking block 27 on one side of the protective door 26 cooperates with the locking groove on one side of the protection box 13, and with the tightening effect of the second screw nut 28 on one side of the protection box 13, the protective door 26 is ensured to close snugly, effectively preventing dust, moisture, and other external factors from entering the box and ensuring the normal operation of the internal electrical components. The connection between the DC circuit breaker 17 and the electrical switch box 16 forms a complete circuit control link, realizing the control and protection of the circuit. The multiple sets of inlet holes 29 on the electrical junction box body 14 and the protection box 13 provide convenient channels for the introduction of external power lines, ensuring that power can be smoothly input into the junction box for distribution and processing. The grounding post 34 on one side of the electrical junction box body 14 can safely conduct any leakage current into the ground, greatly improving the safety of the device and reducing the risk of electric shock. The multiple sets of heat dissipation holes 31 on the protection box 13 can effectively dissipate the heat generated during the operation of the device, preventing excessive internal temperature from damaging electrical components and extending their service life. The fixing frame 32 on the electrical junction box body 14 provides a stable and reliable installation position for the electrical switch box 16, ensuring that the electrical switch box 16 will not loosen or shift due to vibration or other external forces during operation. The wiring holes 33 on the electrical junction box body 14 provide a standardized and orderly channel for the entry and exit of wires, making the wiring connections neater and more aesthetically pleasing, while also facilitating subsequent maintenance and management.
[0027] The specific usage and function of this embodiment are as follows:
[0028] When using the device, the user first securely places the junction box using multiple sets of mounting feet 11, which can be connected to the ground using screws. The grounding posts 12 effectively isolate ground moisture and impurities, while the protective box 13 provides further protection for the internal components.
[0029] The external power supply line is introduced through the inlet hole 29. The distribution box 15 subdivides and organizes the lines, and the DC circuit breaker 17 ensures rapid disconnection in case of circuit abnormalities. The electrical switch box 16 realizes power connection and control with the help of wiring components. The connection between the induction post 18 and the cartridge 19 and the connection hole 21 facilitates wiring and enhances stability.
[0030] When inspection and maintenance are required, loosen the second nut 28 and open the protective door 26 to operate. The grounding post 34 ensures that leakage current is safely conducted to the ground. During operation, the heat dissipation holes 31 dissipate heat in a timely manner, the fixing frame 32 ensures the stability of the electrical switch box 16, and the wiring holes 33 ensure that the wiring is connected and led out in a standardized and orderly manner.
[0031] Its function is to provide a safe, stable, and convenient electrical wiring solution for residential photovoltaic energy storage systems. It effectively prevents electrical faults, facilitates maintenance, improves the reliability and security of power transmission, and ensures the normal operation of the entire energy storage system.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.
Claims
1. A photovoltaic household energy storage electrical junction box structure, comprising multiple sets of mounting feet (11) and an electrical junction box body (14), characterized in that: Multiple sets of the aforementioned foot plates (11) are provided with ground-blocking posts (12), and the ground-blocking posts (12) are provided with protective boxes (13). The electrical junction box body (14) is located on the protective box (13), the protective box (13) is provided with a junction box (15), the electrical junction box body (14) is provided with an electrical switch box (16), the junction box (15) is provided with a DC circuit breaker (17), and the electrical switch box (16) is provided with wiring components. The wiring assembly includes a connecting induction post (18), one end of which is connected to the electrical switch box (16), and a spring cylinder (19) is elastically connected to one side of the connecting induction post (18). Both the connecting induction post (18) and the spring cylinder (19) have a connection hole (21) on one side.
2. The structure of a photovoltaic household energy storage electrical junction box according to claim 1, characterized in that: The junction box (15) is provided with a fixing plate (22), and the fixing plate (22) is provided with multiple sets of insulating guide posts (23), and the multiple sets of insulating guide posts (23) are fitted with junction plate (24).
3. The structure of a photovoltaic household energy storage electrical junction box according to claim 1, characterized in that: Multiple sets of the placement foot plates (11) are detachably connected to the ground-separating column (12), the protective box (13) is slidably connected to the ground-separating column (12), the ground-separating column (12) has sliding grooves on both sides, and multiple sets of first nuts (25) are provided on the ground-separating column (12).
4. The structure of a photovoltaic household energy storage electrical junction box according to claim 3, characterized in that: The protective box (13) is provided with a protective door (26) on one side. The protective door (26) is rotatably connected to the protective box (13). A snap-fit block (27) is provided on one side of the protective door (26). A slot is provided on one side of the protective box (13). A second nut (28) is provided on one side of the protective box (13). The second nut (28) is connected to the protective box (13) and the snap-fit block (27).
5. The structure of a photovoltaic household energy storage electrical junction box according to claim 4, characterized in that: The DC circuit breaker (17) is connected to the electrical switch box (16). The electrical junction box body (14) and the protection box (13) have multiple sets of inlet holes (29). The electrical junction box body (14) has a grounding post (34) on one side.
6. The structure of a photovoltaic household energy storage electrical junction box according to claim 1, characterized in that: The protective box (13) is provided with multiple sets of heat dissipation holes (31), the electrical junction box body (14) is provided with a fixing frame (32), the electrical switch box (16) is fixed on the fixing frame (32), and the electrical junction box body (14) is provided with wiring holes (33).