Photovoltaic module wiring device for photovoltaic power generation

By using a combination design of conical shell, internal threaded sleeve and sealing ring in the photovoltaic module wiring device, the protection problem of the wiring device in harsh environments is solved, achieving higher waterproof, dustproof and corrosion-resistant performance, extending system life and improving reliability and safety.

CN224264285UActive Publication Date: 2026-05-19CGN SOLAR (YIXIAN) CO LTD CHAOYANG BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CGN SOLAR (YIXIAN) CO LTD CHAOYANG BRANCH
Filing Date
2025-07-11
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing photovoltaic module wiring devices for photovoltaic power generation have poor protection in harsh outdoor environments, are prone to aging and corrosion, leading to oxidation and corrosion of the metal conductors at the wiring points, affecting the conductivity and stability of the lines. Furthermore, the sealant is prone to cracking in low-temperature environments, failing to effectively block rainwater and dust, increasing the risk of failure, and affecting the reliability and safety of the system.

Method used

The first and second conical shells are fitted onto the outside of the connecting wire and fixed by an internal threaded sleeve and a Z-shaped metal connecting plate. Combined with a sealing ring, the connection point is protected, rainwater and sand are blocked, and waterproof, dustproof and corrosion-resistant performance is enhanced.

Benefits of technology

It improves the protection and stability of the wiring points, extends the service life of the photovoltaic power generation system, enhances the reliability and safety of the system, reduces maintenance costs, and ensures the stable operation of the photovoltaic power generation system.

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Abstract

The utility model relates to the technical field of photovoltaic power generation, in particular to a photovoltaic module wiring device for photovoltaic power generation, which comprises a first connecting line and a second connecting line, a first conical shell is sleeved on the outer side wall of the first connecting line, and a second conical shell is sleeved on the outer side wall of the second connecting line. The inner side wall of the second conical shell is fixedly connected with a connecting block, the wiring position of the first connecting line and the second connecting line is protected through the first conical shell and the second conical shell, and the first conical shell and the second conical shell are fixed through the internal thread sleeve. The protection stability of the first conical shell and the second conical shell at the wiring position is improved, invasion of impurities such as rainwater and sand dust is effectively blocked, the waterproof, dustproof and anti-corrosion performance of the wiring position is greatly improved, the service life of a photovoltaic power generation system is prolonged, the reliability and safety of the power generation system are improved, the later maintenance cost is reduced, and the service life of the photovoltaic power generation system is prolonged. And a powerful guarantee is provided for stable operation of a photovoltaic power generation system.
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Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically a photovoltaic module wiring device for photovoltaic power generation. Background Technology

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at the semiconductor interface. It mainly consists of three parts: solar panels (modules), controllers, and inverters, with the main components being electronic devices. Solar cells are connected in series and then encapsulated for protection to form large-area solar cell modules. Combined with components such as power controllers, this forms a photovoltaic power generation device. Because photovoltaic power generation requires large-area photovoltaic panels, installers often need to handle wiring during their daily work.

[0003] In photovoltaic (PV) power generation systems, the PV module wiring device is a crucial component ensuring stable power transmission. However, many existing PV module wiring devices offer poor protection at the wiring points. Firstly, traditional wiring devices often use simple plastic shells or ordinary sealant for protection. Under harsh outdoor conditions, such as high temperatures and direct sunlight, the plastic shells are prone to aging and deformation, losing effective protection for the internal wiring. This exposes the metal conductors at the wiring points directly to the air, increasing the risk of oxidation and corrosion, thus affecting the conductivity and stability of the circuit. Secondly, ordinary sealant is prone to becoming brittle and cracking at low temperatures, failing to effectively prevent rainwater, dust, and other impurities from entering the wiring points. Once water or dust enters the wiring points, it can not only cause short circuits but also accelerate the corrosion of metal components, shortening the lifespan of the entire PV power generation system. Furthermore, some traditional wiring devices lack sufficient consideration for wiring point protection in their design, lacking effective waterproof, dustproof, and corrosion-resistant structural designs. This makes the wiring points a weak link in the entire PV power generation system, seriously affecting its reliability and safety. Therefore, this paper proposes a new PV module wiring device for PV power generation. Utility Model Content

[0004] In view of this, the present invention provides a photovoltaic module wiring device for photovoltaic power generation to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0005] The technical solution of this utility model is implemented as follows: A photovoltaic module wiring device for photovoltaic power generation includes a first connecting line and a second connecting line. The outer wall of the first connecting line is fitted with a first conical shell, and the outer wall of the second connecting line is fitted with a second conical shell. A connecting block is fixedly connected to the inner wall of the second conical shell, and a Z-shaped metal connecting plate is fixedly connected to one side of the connecting block.

[0006] More preferably, the outer walls of both the first conical shell and the second conical shell are integrally formed with external threads, and the outer walls of the first conical shell and the second conical shell are threadedly connected with internal thread sleeves.

[0007] More preferably, the Z-shaped metal connecting plate has two symmetrical mounting holes on one side, and the inner sidewall of the mounting holes is threaded with fixing bolts.

[0008] More preferably, the inner walls of both the first conical shell and the second conical shell are bonded with sealing rings.

[0009] The present invention has the following advantages due to the adoption of the above technical solution:

[0010] This utility model protects the connection point of the first and second connecting wires with a first conical shell and a second conical shell, and fixes the first and second conical shells with an internal threaded sleeve. This improves the stability of the protection provided by the first and second conical shells at the connection point, effectively blocks the intrusion of rainwater, sand and dust and other impurities, greatly improves the waterproof, dustproof and corrosion-resistant performance of the connection point, extends the service life of the photovoltaic power generation system, improves the reliability and safety of the power generation system, reduces the later maintenance cost, and provides a strong guarantee for the stable operation of the photovoltaic power generation system.

[0011] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] Figure 2 This is another structural diagram of the present invention;

[0015] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0016] Reference numerals: 1. First connecting line; 2. Second connecting line; 3. First conical shell; 4. Second conical shell; 5. External thread; 6. Internal thread sleeve; 7. Connecting block; 8. Z-shaped metal connecting plate; 9. Mounting hole; 10. Fixing bolt; 11. Sealing ring. Detailed Implementation

[0017] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0018] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figure 1-3 As shown, this utility model embodiment provides a photovoltaic module wiring device for photovoltaic power generation, including a first connecting line 1 and a second connecting line 2. A first conical shell 3 is sleeved on the outer wall of the first connecting line 1, and a second conical shell 4 is sleeved on the outer wall of the second connecting line 2. A connecting block 7 is fixedly connected to the inner wall of the second conical shell 4, and a Z-shaped metal connecting plate 8 is fixedly connected to one side of the connecting block 7.

[0020] In one embodiment, the outer walls of the first conical shell 3 and the second conical shell 4 are integrally formed with external threads 5, and the outer walls of the first conical shell 3 and the second conical shell 4 are threadedly connected with internal thread sleeves 6; by setting the internal thread sleeves 6, the internal thread sleeves 6 are rotated on the first conical shell 3, and the internal thread sleeves 6 are rotated onto the first conical shell 3 and the second conical shell 4, thus connecting the first conical shell 3 and the second conical shell 4.

[0021] In one embodiment, two mounting holes 9 are symmetrically opened on one side of the Z-shaped metal connecting plate 8, and a fixing bolt 10 is threadedly connected to the inner side wall of the mounting hole 9. By setting the fixing bolt 10, the core of the first connecting line 1 and the second connecting line 2 are fitted with the mounting hole 9, and then the fixing bolt 10 is turned into the mounting hole 9. The fixing bolt 10 cooperates with the Z-shaped metal connecting plate 8 to squeeze and fix the core of the first connecting line 1 and the second connecting line 2.

[0022] In one embodiment, sealing rings 11 are bonded to the inner walls of both the first conical shell 3 and the second conical shell 4; by providing sealing rings 11, the sealing rings 11 improve the sealing performance between the first conical shell 3 and the second conical shell 4 and the first connecting line 1 and the second connecting line 2.

[0023] In operation, the present invention works as follows: First, the first connecting wire 1 passes through the first conical shell 3, and the second connecting wire 2 passes through the second conical shell 4. The second conical shell 4 is adjusted to a suitable position on the second connecting wire 2. Then, the cores of the first connecting wire 1 and the second connecting wire 2 are aligned with the mounting hole 9. Then, the fixing bolt 10 is turned into the mounting hole 9. The fixing bolt 10, together with the Z-shaped metal connecting plate 8, presses and fixes the cores of the first connecting wire 1 and the second connecting wire 2. Then, the first conical shell 3 is adjusted to a suitable position, close to the second conical shell 4. The internal threaded sleeve 6 is turned onto the first conical shell 3 and the second conical shell 4 to connect the first conical shell 3 and the second conical shell 4, thus completing the wiring operation of the first connecting wire 1 and the second connecting wire 2.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A photovoltaic module wiring device for photovoltaic power generation, characterized in that: It includes a first connecting line (1) and a second connecting line (2). The outer wall of the first connecting line (1) is fitted with a first conical shell (3), and the outer wall of the second connecting line (2) is fitted with a second conical shell (4). The inner wall of the second conical shell (4) is fixedly connected with a connecting block (7), and a Z-shaped metal connecting plate (8) is fixedly connected to one side of the connecting block (7).

2. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The outer walls of the first conical shell (3) and the second conical shell (4) are integrally formed with external threads (5), and the outer walls of the first conical shell (3) and the second conical shell (4) are threadedly connected with internal thread sleeves (6).

3. The photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: Two mounting holes (9) are symmetrically opened on one side of the Z-shaped metal connecting plate (8), and the inner sidewall of the mounting hole (9) is threaded with a fixing bolt (10).

4. A photovoltaic module wiring device for photovoltaic power generation according to claim 1, characterized in that: The inner walls of the first conical shell (3) and the second conical shell (4) are both bonded with sealing rings (11).