CN215452863U

CN215452863U - Last wiring structure of photovoltaic module, photovoltaic module and photovoltaic system

Info

Publication number: CN215452863U
Application number: CN202120623868.2U
Authority: CN
Inventors: 邝亚镭
Original assignee: Jiangxi Dingyao Intelligent Technology Co ltd
Current assignee: Jiangxi Dingyao Intelligent Technology Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-01-07
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a wiring structure on a photovoltaic module, the photovoltaic module and a photovoltaic system, which comprise frames arranged on two sides of the photovoltaic module, wherein each frame comprises at least one convex part, each convex part is provided with a wiring hole for a cable to pass through, and the frames of adjacent photovoltaic modules are overlapped together, so that the cable extends to the lower part of the convex part and then passes through the wiring hole upwards to be positioned above the photovoltaic module so as to be connected with a solar charging control device. The photovoltaic module connecting device can realize the connecting operation of cables among the modules above the photovoltaic module, is convenient to install, disassemble and maintain, has particularly remarkable advantages particularly for installation scenes of photovoltaic power stations paved on roofs and the like, wherein the back of the photovoltaic power stations does not have enough operating space due to the fact that the modules are tightly attached to the roofs, and is simple in structure and low in cost, so that the photovoltaic module connecting device is suitable for wide popularization and use.

Description

Last wiring structure of photovoltaic module, photovoltaic module and photovoltaic system

Technical Field

The utility model relates to a wiring structure on a photovoltaic assembly, a photovoltaic assembly using the wiring structure on the photovoltaic assembly, and a photovoltaic system composed of the photovoltaic assembly.

Background

With the continuous development of the photovoltaic market, the scene of photovoltaic module installation is more and more diversified, so the convenience of module installation also becomes one of the important performances of the module. The roof power station is difficult to transform due to the influence of the conditions of the building, and the installation and maintenance difficulty is often large. The terminal box, the cable and the connector of the existing photovoltaic module are all located on the back of the module, after the power station is installed, the terminal box, the cable and the connector are all under the shielding of the module, and therefore exposure to the sun and erosion of rainwater can be effectively prevented, and therefore the rapid aging and the electrical risks of the devices are avoided.

However, for a power station laid on a roof, the back of the components has no operation space, if a traditional back wiring mode is adopted, the connection between the components and the subsequent disassembly and maintenance are very challenging, and the wiring mode is more convenient, but the most direct mode of wiring is to connect the junction box by punching from the front glass, and the mode obviously has many disadvantages in the aspects of safety performance and long-term reliability.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a photovoltaic module upper wiring structure which is simple in structure, low in cost and convenient to install, disassemble and maintain.

The first purpose of the utility model is realized by the following technical scheme: the utility model provides a wiring structure on photovoltaic module, its characterized in that, it is including the frame of locating the photovoltaic module both sides, the frame includes at least one convex part, just be equipped with the line hole that supplies the cable to pass on the convex part, adjacent photovoltaic module's frame overlap joint is in the same place for the cable extends to pass the line hole again and be located photovoltaic module's top in the below of convex part for connect solar charging control device.

The photovoltaic module connecting device can realize the connecting operation of cables among the modules above the photovoltaic module, is convenient to install, disassemble and maintain, has particularly remarkable advantages particularly for installation scenes of photovoltaic power stations paved on roofs and the like, wherein the back of the photovoltaic power stations does not have enough operating space due to the fact that the modules are tightly attached to the roofs, and is simple in structure and low in cost, so that the photovoltaic module connecting device is suitable for wide popularization and use.

The frame comprises a convex part and a concave part which are connected, the frames of adjacent photovoltaic modules are meshed with each other and are arranged at the concave part to form a wiring groove, a cable which penetrates through the wiring groove is positioned in the wiring groove and extends along the wiring groove, and a cover plate which covers a notch is arranged on the wiring groove. The frames of adjacent photovoltaic modules are meshed with each other to form tight connection, the wiring groove with the groove structure is formed at the meshing position, the cable is positioned in the wiring groove, the cover plate is arranged on the wiring groove, the groove structure area at the connection position of the modules can be well sealed, the wiring groove can play a role in protecting the cable and the like at the position, insolation and erosion of rainwater can be effectively prevented, therefore, rapid aging of the cable and electrical risks caused by rapid aging of the cable are avoided, and safety performance and long-term reliability are ensured.

The bottom surface of the concave part is not lower than the bottom surface of the photovoltaic module.

The cover plate comprises a top plate and two side plates, wherein the two side plates are matched with and meshed with the frame of the adjacent photovoltaic module.

Two side plates of the cover plate are fixedly connected with the occlusion parts of the adjacent photovoltaic assembly frames. For example, the fastening can be performed by means of fastening pieces (screws) and the like so as to meet the requirements of different use environments.

As an embodiment of the present invention, the frame and the back plate of the photovoltaic module are integrally made of a hard material, that is, the frame is formed by extending the back plate to two sides.

As another embodiment of the present invention, the frame and the back plate of the photovoltaic module are made of hard materials, and the frame is disposed on two sides of the back plate and is made separately from the back plate.

The hard material is made of metal material, inorganic material, hard high molecular material or composite material. The common materials include steel plate, aluminum alloy plate, composite ceramic material plate, novel high polymer material plate, etc.

In yet another embodiment of the present invention, the frame includes a groove portion engaged with an edge of the photovoltaic module, and the convex portion and the concave portion are located outside the groove portion.

The second objective of the present invention is to provide a photovoltaic module including the wiring structure on the photovoltaic module.

A third object of the present invention is to provide a photovoltaic system comprising the above photovoltaic module.

Compared with the prior art, the utility model has the following remarkable effects:

(1) the photovoltaic module can realize the connection operation of cables among the modules above the photovoltaic module, and is convenient to install, disassemble and maintain.

(2) The frames of adjacent photovoltaic modules are meshed with each other to form tight connection, the wiring groove with the groove structure is formed at the meshing position, the cable is positioned in the wiring groove, the cover plate is arranged on the wiring groove, the groove structure area at the connection position of the modules can be well sealed, the wiring groove can play a role in protecting the cable and the like at the connection position, insolation and erosion of rainwater can be effectively prevented, therefore, rapid aging and electrical risks of the cable are avoided, and safety performance and long-term reliability are ensured.

(3) The utility model has the advantages of obvious advantages especially for installation scenes of photovoltaic power stations paved on roofs and the like, which have insufficient operation space on the back due to the fact that the components are tightly attached to the roofs, and the utility model has simple structure and low cost, thereby being suitable for wide popularization and application.

(4) The frame and the back plate can be integrated or separated or are unrelated to the material and the structure of the back plate, and are additionally arranged on two sides of a common photovoltaic assembly, so that the structural form of the frame is flexible and changeable, and the frame can be applied according to specific use occasions.

Drawings

The utility model is described in further detail below with reference to the figures and the specific embodiments.

Figure 1 is a front view of a single photovoltaic module of example 1 of the present invention;

FIG. 2 is a back view of a single photovoltaic module of example 1 of the present invention;

FIG. 3 is a side view of a single photovoltaic module of example 1 of the present invention;

FIG. 4 is a schematic structural diagram of the connection between two adjacent photovoltaic modules in example 1 of the present invention;

FIG. 5 is an enlarged view of part A of FIG. 4;

FIG. 6 is a back view of a single photovoltaic module of example 2 of the present invention;

FIG. 7 is a schematic structural diagram of the connection between two adjacent photovoltaic modules in example 2 of the present invention;

fig. 8 is a front view of a single photovoltaic module of example 3 of the present invention;

FIG. 9 is a back view of a single photovoltaic module of example 3 of the present invention;

figure 10 is a side view of a single photovoltaic module of example 3 of the present invention;

FIG. 11 is an enlarged view of a portion B of FIG. 10;

FIG. 12 is an enlarged view of a portion C of FIG. 10;

fig. 13 is a schematic structural diagram of the connection between two adjacent photovoltaic modules in embodiment 3 of the present invention.

Detailed Description

Example 1

As shown in fig. 1 to 5, the wiring structure on a photovoltaic module of the present invention includes frames 2 disposed on two sides of a photovoltaic module 1, in this embodiment, the frames 2 and a back plate 3 of the photovoltaic module 1 are integrally made of a hard material, that is, the frames 2 are formed by extending the back plate 3 to two sides, the back plate and the frames are specifically galvanized steel plates with a thickness of 0.8mm, and in other embodiments using a metal material, aluminum alloy plates with a thickness of 0.6mm may also be used. In other embodiments, the back sheet of the photovoltaic module body can also be made of an inorganic material, a hard polymer material or a composite material. The frame 2 comprises a convex part 4 and a concave part 5 which are connected, the convex part is made by stamping, the top surface of the convex part 4 and the bottom surface of the concave part 5 are both flat, and the bottom surface of the concave part 5 is not lower than the bottom surface of the photovoltaic module 1. The positive and negative cables of the photovoltaic module 1 of this embodiment are led out on the same side (left side), the junction box 8 is close to the frame 2 on the left side of the photovoltaic module, the wiring hole 6 for the cable 7 to pass through is arranged on the convex portion 4 of the frame 2, and the frame on the right side is provided with the notch 14 for the cable 7 to pass through. The frames 2 of adjacent photovoltaic modules 1 are occluded with each other, a wiring groove 9 is formed in the concave part 4, one end of a positive and negative cable 7 is connected with a junction box 8, the other end of the positive and negative cable extends to the lower part of the convex part 4, penetrates through the wiring hole 6 and the gap 14 to be located above the photovoltaic modules 1, and extends along the wiring groove 9 so as to be connected with a solar charging control device.

And a cover plate 10 for covering the notch is arranged on the wiring groove 9, the cover plate 10 comprises a top plate 11 and two side plates 12, and the two side plates 12 are matched with the frame 2 of the adjacent photovoltaic module 1 in shape and are meshed together to form tight connection. The top plate 11 protrudes upward to increase a space for accommodating the cable. The two side plates 12 are fixedly connected with the occlusion parts of the adjacent frames 2 of the photovoltaic modules 1 through screws, and reinforcement treatment is carried out to meet the requirements of different use environments.

The utility model provides a photovoltaic module, contains wiring structure on the foretell photovoltaic module, and photovoltaic module 1 includes from last positive photovoltaic glass, battery piece, insulating encapsulation glued membrane and the backplate 3 that sets gradually down, in this embodiment, 3 formation frames 2 that extend to both sides of backplate. The front photovoltaic glass, the battery piece and the insulating packaging adhesive film are the same in size, and the length and the width of the front photovoltaic glass, the battery piece and the insulating packaging adhesive film are smaller than those of the back plate 3.

A photovoltaic system comprises the photovoltaic modules, and rows of the photovoltaic modules are spliced together through the frame engagement of the adjacent photovoltaic modules.

Example 2

As shown in fig. 6 and 7, the photovoltaic module of the present embodiment is different from the photovoltaic module of embodiment 1 in that: the positive and negative cables 7 of the photovoltaic module 1 of this embodiment are separately led out from two sides, and the positive cable and the negative cable of two adjacent photovoltaic modules 1 respectively extend upwards through the wiring holes of the two-phase meshed frames 2 to extend into the same wiring groove 9 and extend along the wiring groove 9 to be connected with the solar charging control device.

Example 3

As shown in fig. 8 to 13, the photovoltaic module of the present embodiment is different from the photovoltaic module of embodiment 1 in that: frame 2 and backplate of this embodiment photovoltaic module 1 are the components of a whole that can function independently, and photovoltaic module 1's lamination piece 16 is conventional lamination piece, includes from last front photovoltaic glass, battery piece, insulating packaging adhesive film and the backplate that sets gradually down promptly, and the backplate adopts conventional photovoltaic organic backplate material, like the multilayer macromolecular material of different structures such as TPT, KPK, TPE, also can adopt photovoltaic glass. Conventional laminates may be of conventional single glass construction or may be of dual glass construction, i.e. the back side is also glass encapsulated.

The frame 2 comprises a clamping groove part 15 clamped on the edge of the photovoltaic module, and the convex part 4 and the concave part 5 are positioned outside the clamping groove part 15. The structure of the convex part and the concave part of the two side frames of the photovoltaic module can be adaptively modified and changed according to actual conditions, in the embodiment, the left side frame comprises the convex part 4 and the concave part 5, the right side frame comprises the convex part 4, the frames of the adjacent photovoltaic modules are meshed with each other and form the wiring groove 9 in the concave part 4, and in order to facilitate the buckling of the cover plate 10 on the wiring groove 9, the upper end of the wiring groove 9 and the lower end of the cover plate 10 are provided with the clamping hooks 17 which are clamped with each other.

In this embodiment, the positive and negative cables 7 are separately led out from two sides, and the positive cable and the negative cable of two adjacent photovoltaic modules 1 respectively extend upwards through the wiring holes of the two-phase meshed frames 2 to extend into the same wiring groove 9 and extend along the wiring groove 9 to be connected with the solar charging control device.

The size of the back plate of the photovoltaic module suitable for the embodiment is the same as that of the photovoltaic module main body, and the material of the back plate is not limited and can be a hard material or a soft material.

In other embodiments, the frame and the back plate of the photovoltaic module are made of hard materials, and the frame is arranged on two sides of the back plate and is made separately from the back plate.

The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or changed in other various forms without departing from the basic technical idea of the present invention.

Claims

1. The utility model provides a wiring structure on photovoltaic module which characterized in that: the solar photovoltaic module comprises frames arranged on two sides of the photovoltaic module, each frame comprises at least one convex part, the convex parts are provided with wiring holes for cables to pass through, and the frames of adjacent photovoltaic modules are overlapped together, so that the cables extend to the lower parts of the convex parts and then pass through the wiring holes to be positioned above the photovoltaic modules, and the solar photovoltaic module is connected with a solar charging control device.

2. The photovoltaic module wiring structure according to claim 1, wherein: the frame comprises a convex part and a concave part which are connected, the frames of adjacent photovoltaic modules are meshed with each other and are positioned at the concave part to form a wiring groove, a cable passing through the wiring hole is positioned in the wiring groove and extends along the wiring groove, and a cover plate covering the notch is arranged on the wiring groove.

3. The photovoltaic module wiring structure according to claim 2, wherein: the bottom surface of the recess is not lower than the bottom surface of the photovoltaic module.

4. The photovoltaic module wiring structure according to claim 3, wherein: the cover plate comprises a top plate and two side plates, and the two side plates are matched with and meshed with the frame of the adjacent photovoltaic assembly.

5. The photovoltaic module wiring structure according to claim 4, wherein: and the two side plates of the cover plate are fixedly connected with the occlusion parts of the adjacent photovoltaic assembly frames.

6. The photovoltaic module wiring structure according to claim 5, wherein: the frame and the back plate of the photovoltaic module are integrally made of hard materials, namely the frame is formed by extending the back plate to two sides.

7. The photovoltaic module wiring structure according to claim 5, wherein: the frame and the back plate of the photovoltaic assembly are made of hard materials, and the frame is arranged on two sides of the back plate and is made of a split type.

8. The photovoltaic module wiring structure according to claim 5, wherein: the frame comprises a clamping groove part clamped on the edge of the photovoltaic assembly, and the convex part and the concave part are positioned on the outer side of the clamping groove part.

9. A photovoltaic module, characterized by: the wiring structure on a photovoltaic module comprising any one of claims 1 to 8.

10. A photovoltaic system, characterized by: comprising the photovoltaic module of claim 9.