Wiring structure of photovoltaic panel

Abstract

The utility model relates to the technical field of photovoltaic panels, in particular to a wiring structure of a photovoltaic panel, which comprises a main body and at least one junction box, adjacent junction boxes are connected in parallel, each junction box comprises a shell and a base, the shell is provided with a first circuit board and an indicator light electrically connected with the first circuit board, and the base is provided with a second circuit board electrically connected with the first circuit board. The inner side face of the first circuit board is electrically connected with a first contact, the base is bonded to the inner side face of the photovoltaic panel, the base is provided with a second contact electrically connected with the photovoltaic panel, the shell is magnetically attracted to the base, the first contact abuts against the second contact, and when the indicator light displays that the photovoltaic panel goes wrong, a user pulls the shell to drive the photovoltaic panel to go wrong. Compared with the prior art, the photovoltaic panel has the advantages that the lead does not need to be cut off, and the connection structure between the shell and the base is stable, not easy to damage and convenient and fast to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic panel technology, and in particular to a wiring structure for a photovoltaic panel. Background Technology

[0002] A junction box is typically installed on the back of a photovoltaic module. However, during routine maintenance of the junction box and related modules, or when the junction box and related modules are damaged and need repair, the junction box is encapsulated on the photovoltaic module, making it inconvenient to disassemble. Moreover, disassembling the junction box often leads to damage to the junction box and / or the photovoltaic module, resulting in the scrapping of the junction box and the photovoltaic module and causing waste. Therefore, junction boxes that are easy to replace have appeared on the market.

[0003] For example, patent CN215601269U discloses a wiring assembly and a solar power generation device. The junction box contains a circuit board for electrical connection with a photovoltaic panel. A through-hole is provided on the end face of the junction box that mates with the mounting component. Wires from the circuit board can pass through the through-hole and connect to the photovoltaic panel. The indicator light illuminates or extinguishes, allowing users to quickly determine if there is a problem with the photovoltaic panel connected to the circuit board, enabling replacement and repair. The junction box is equipped with an indicator light for electrical connection to the circuit board. The mounting part is an outward-facing mounting plane on the mounting component, which is glued to the photovoltaic panel. The junction box is detachably connected to the mounting component via a snap-fit ​​structure. The snap-fit ​​structure includes a snap hole and a snap-fit ​​protrusion within the snap hole. The snap hole is located on the mounting component, and the snap-fit ​​protrusion is located on the junction box. The snap-fit ​​protrusion engages with the snap hole to secure the junction box to the mounting component. The structure is simple, easy to assemble and disassemble, and has good snap-fit ​​stability.

[0004] The problem with the above technology is that when the indicator light shows that the photovoltaic panel has a problem, the user needs to remove the junction box from the mounting bracket and cut the wires connecting the photovoltaic panel to the circuit board before the photovoltaic panel can be replaced. The junction box and the mounting bracket are connected by a snap-fit ​​protrusion and a snap-fit ​​hole. If the user uses too much force during the disassembly process, the snap-fit ​​protrusion or snap-fit ​​hole may break. In addition, after replacing the photovoltaic panel, the wires need to be reconnected to the photovoltaic panel, which is difficult for the user to replace by himself.

[0005] To address these technical problems, a wiring structure for photovoltaic panels is proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a wiring structure for a photovoltaic panel that is stable and easy to assemble and disassemble.

[0007] The technical solution adopted by this utility model to solve the problem is: a wiring structure for a photovoltaic panel, including at least one junction box, adjacent junction boxes being interconnected, each junction box including a housing and a base, the housing being provided with a first circuit board and an indicator light electrically connected to the first circuit board, the first circuit boards in adjacent junction boxes being connected in parallel, the inner side of the first circuit board being electrically connected to a first contact, the base being adhered to the inner side of the photovoltaic panel, the base being provided with a second contact electrically connected to the photovoltaic panel, the housing being magnetically attracted to the base, and the first contact and the second contact abutting against each other.

[0008] As a further improvement to the above technical solution, magnets that attract each other are provided on the inner sides of both the housing and the base.

[0009] As a further improvement to the above technical solution, a lens is provided on the outer surface of the housing, and the projection of the lens overlaps with the indicator light.

[0010] As a further improvement to the above technical solution, a mounting base is provided on the inner side of the first circuit board, the first contact is provided on the mounting base, a boss is provided on the inner side of the base, and the second contact is provided on the boss.

[0011] As a further improvement to the above technical solution, the mounting base is provided with a groove, the first contact point is disposed in the groove, the boss is provided with a protrusion, the second contact point is disposed on the protrusion, and the protrusion is inserted into the groove.

[0012] As a further improvement to the above technical solution, the mounting base is provided with an annular groove, and a sealing ring is provided in the annular groove.

[0013] As a further improvement to the above technical solution, a second circuit board is also included, which is disposed between the base and the boss, and is electrically connected to the second contact.

[0014] As a further improvement to the above technical solution, the base is provided with through holes, and the wiring of the photovoltaic panel is electrically connected to the second circuit board through the through holes.

[0015] As a further improvement to the above technical solution, wire-passing holes are provided on both sides of the housing, and wires with clips are provided on the wire-passing holes to be electrically connected to the first circuit board.

[0016] The beneficial effects of this utility model are: when the indicator light shows that there is a problem with the photovoltaic panel, the user can separate the housing and the base by prying the housing, so that the first contact and the second contact are disconnected, and then the photovoltaic panel can be replaced. Compared with the prior art, there is no need to cut the wires, and the connection structure between the housing and the base is stable and not easily damaged, and the disassembly and assembly are convenient and quick. Attached Figure Description

[0017] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a structural diagram of the junction box of this utility model;

[0019] Figure 2 This is an exploded view of the junction box of this utility model from the main perspective;

[0020] Figure 3 This is an exploded view of the junction box of this utility model from the rear perspective.

[0021] Figure 4 This is a connection structure diagram of the photovoltaic panel and junction box of this utility model;

[0022] Figure 5 for Figure 4 Cross-sectional view of section AA.

[0023] In the diagram: 1-junction box, 2-housing, 21-wire through hole, 3-base, 31-second contact, 32-bore, 33-protrusion, 34-through hole, 35-second circuit board, 4-first circuit board, 41-first contact, 42-mounting base, 43-groove, 44-indicator light, 45-annular groove, 5-lens, 6-magnet, 7-photovoltaic panel, 8-wire, 9-sealing ring. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1 to 5 A wiring structure for a photovoltaic panel includes at least one junction box 1, with adjacent junction boxes 1 interconnected. Each junction box 1 includes a housing 2 and a base 3. The housing 2 is provided with a first circuit board 4 and an indicator light 5 electrically connected to the first circuit board 4. The first circuit boards 4 in adjacent junction boxes 1 are connected in parallel. The indicator light 5 is located on the outer surface of the housing 2. The inner side of the first circuit board 4 is electrically connected to a first contact 41. The base 3 is adhered to the inner side of the photovoltaic panel 7. The base 3 is provided with a second contact 31 electrically connected to the photovoltaic panel 7. The housing 2 is magnetically attracted to the base 3. The first contact 41 and the second contact 31 abut against each other.

[0029] When indicator light 5 shows that there is a problem with photovoltaic panel 7, the user can separate housing 2 and base 3 by prying housing 2, so that the first contact 41 and the second contact 31 are disconnected. Then the photovoltaic panel 7 can be replaced. Compared with the existing technology, there is no need to cut the wires, and the connection structure between housing 2 and base 3 is stable and not easily damaged. Disassembly and assembly are convenient and quick.

[0030] The parts inside the housing 2 and the base 3 are all sealed with glue.

[0031] In a preferred embodiment, magnets 6 that attract each other are provided on the inner sides of both the housing 2 and the base 3, so that the housing 2 and the base 3 can be magnetically attracted to each other through the magnets.

[0032] In a preferred embodiment, a lens 5 is provided on the outer surface of the housing 2, and the projection of the lens 5 overlaps with the indicator light 44.

[0033] In a preferred embodiment, a mounting base 42 is provided on the inner side of the first circuit board 4, a first contact 41 is provided on the mounting base 42, a boss 32 is provided on the inner side of the base 3, and a second contact 31 is provided on the boss 32.

[0034] In a preferred embodiment, the mounting base 42 is provided with a groove 43, the first contact 41 is provided in the groove 43, the boss 32 is provided with a protrusion 33, and the second contact 31 is provided on the protrusion 33. The protrusion 33 is inserted into the groove 43, which can play a guiding role and prevent the housing 2 and the base 3 from being misaligned during installation.

[0035] In a preferred embodiment, in order to increase the sealing between the contacts, an annular groove 45 is provided on the mounting base 42, and a sealing ring 9 is provided in the annular groove 45.

[0036] In a preferred embodiment, the base 3 is provided with a through hole 34, and the wiring of the photovoltaic panel 7 is electrically connected to the second circuit board 35 through the through hole 34.

[0037] In a preferred embodiment, wire-through holes 21 are provided on both sides of the housing 2. Wires 8, which are electrically connected to the first circuit board 4 and have clips, are provided on the wire-through holes 21. The first circuit board 4 is electrically connected to the first circuit board 4 inside the adjacent housing 2 through the wires 8.

[0038] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A wiring structure for a photovoltaic panel, comprising at least one junction box (1), wherein adjacent junction boxes (1) are interconnected, characterized in that: The junction box (1) includes a housing (2) and a base (3). The housing (2) is provided with a first circuit board (4) and an indicator light (44) electrically connected to the first circuit board (4). The first circuit boards (4) in adjacent junction boxes (1) are connected in parallel. The inner side of the first circuit board (4) is electrically connected to a first contact (41). The base (3) is adhered to the inner side of the photovoltaic panel (7). The base (3) is provided with a second contact (31) electrically connected to the photovoltaic panel (7). The housing (2) is magnetically attracted to the base (3). The first contact (41) and the second contact (31) abut against each other.

2. The wiring structure of a photovoltaic panel as described in claim 1, characterized in that: Magnets (6) that attract each other are provided on the inner sides of the housing (2) and the base (3).

3. The wiring structure of a photovoltaic panel as described in claim 2, characterized in that: A lens (5) is provided on the outer surface of the housing (2), and the projection of the lens (5) overlaps with the indicator light (44).

4. The wiring structure of a photovoltaic panel as described in claim 2, characterized in that: A mounting base (42) is provided on the inner side of the first circuit board (4), and the first contact (41) is provided on the mounting base (42). A boss (32) is provided on the inner side of the base (3), and the second contact (31) is provided on the boss (32).

5. The wiring structure of a photovoltaic panel as described in claim 4, characterized in that: The mounting base (42) is provided with a groove (43), the first contact (41) is provided in the groove (43), the boss (32) is provided with a protrusion (33), the second contact (31) is provided on the protrusion (33), and the protrusion (33) is inserted into the groove (43).

6. The wiring structure of a photovoltaic panel as described in claim 5, characterized in that: The mounting base (42) is provided with an annular groove (45), and a sealing ring (9) is provided in the annular groove (45).

7. The wiring structure of a photovoltaic panel as described in claim 5, characterized in that: It also includes a second circuit board (35), which is disposed between the base (3) and the boss (32), and is electrically connected to the second contact (31).

8. The wiring structure of a photovoltaic panel as described in claim 7, characterized in that: The base (3) is provided with a through hole (34), and the wiring of the photovoltaic panel (7) is electrically connected to the second circuit board (35) through the through hole (34).

9. The wiring structure of a photovoltaic panel as described in claim 1, characterized in that: The housing (2) has wire through holes (21) on both sides, and wires (8) that are electrically connected to the first circuit board (4) and have clips are provided on the wire through holes (21).

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