CN217643267U - Novel photovoltaic frame and photovoltaic module - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic frames, and discloses a novel photovoltaic frame and a photovoltaic assembly. The novel photovoltaic frame includes a frame bar fixed on the periphery of the photovoltaic laminate and a cross brace installed on the back of the photovoltaic laminate, and the end of the cross brace is installed in the middle of the frame bar; the photovoltaic laminate is connected with a For a junction box, the transverse support is provided with a junction box installation cavity for the junction box to be placed in, and the junction box installation cavity is also provided with a wire hole. The new photovoltaic frame middle frame is matched with horizontal braces, which can improve the mechanical strength and wind pressure resistance of the entire photovoltaic module; the installation positions of the horizontal braces and the junction box overlap at least partially. Effectively avoid the reduction of the light-receiving area of the photovoltaic laminate due to the shading of light by the transverse struts, thereby basically not affecting the photoelectric conversion efficiency of the entire photovoltaic module.

Description

A new type of photovoltaic frame and photovoltaic module

technical field

The utility model relates to the technical field of photovoltaic frames, in particular to a novel photovoltaic frame and a photovoltaic assembly with the novel photovoltaic frame.

Background technique

Existing photovoltaic frames, such as a photovoltaic frame and photovoltaic components provided by publication number CN213125954U, the photovoltaic frame includes a frame and a cross bar, the cross bar can provide support for the photovoltaic laminate, and when the number of cross bars is large, the photovoltaic laminate The supporting effect of the components is better, so the load of the photovoltaic laminate can be increased by the coordinated use of the frame and the cross bar.

However, in the existing photovoltaic frame, the installation position of the crossbar does not overlap with the installation position of the junction box, and both the junction box and the crossbar block light, reducing the light-receiving area of the photovoltaic laminate, thus reducing the overall The photoelectric conversion efficiency of photovoltaic modules, especially the greater the number of horizontal bars, the larger the shading area, which will greatly reduce the photoelectric conversion efficiency of the entire photovoltaic module.

Utility model content

The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a novel photovoltaic frame and a photovoltaic assembly with the novel photovoltaic frame. The novel photovoltaic frame has a simple structure and basically does not reduce the light received by the photovoltaic laminate. area.

Based on this, the present utility model discloses a novel photovoltaic frame, which includes a frame strip fixed on the periphery of the photovoltaic laminate and a cross brace installed on the back of the photovoltaic laminate, and the end of the cross brace is installed in the middle of the frame strip. The photovoltaic laminate is connected with a junction box, a junction box installation cavity for the junction box is arranged in the horizontal support, and a wire hole is also opened on the junction box installation cavity.

Preferably, a plurality of the junction box installation cavities are provided at intervals in the transverse support, and the wire passage holes are opened on the top of each of the junction box installation cavities.

Preferably, the top surface of the cross brace is bonded to the back surface of the photovoltaic laminate. Specifically, the top surface of the cross brace and the back surface of the photovoltaic laminate are bonded by an adhesive layer.

Further preferably, a groove for accommodating the adhesive layer is provided on the top surface of the cross brace.

Further preferably, the grooves are arranged along the length direction of the cross brace and penetrate both ends of the cross brace.

Further preferably, the adhesive layer is a structural adhesive layer.

Preferably, the ends of the cross braces are snap-fitted with the frame bars.

Further preferably, the end portion of the cross brace is provided with a mounting portion extending outward along the length direction of the cross brace, the frame bar is provided with a cavity for the mounting portion to be inserted into, and the surface of the mounting portion is provided with an outwardly extending portion. The protruding clamping block is provided with a clamping slot for clamping the clamping block in the cavity.

Further preferably, the upper surface and the lower surface of the mounting portion are respectively provided with the clamping blocks protruding upward and downward, and the upper and lower parts of the cavity are provided with the clamping grooves for clamping the clamping blocks. .

Further preferably, the fixed end of the clamping block is integrally connected with the surface of the mounting portion, and the surface of the mounting portion is partially cut and then bent and protruded outward to form the free end of the clamping block.

More preferably, the fixed end of the clamping block is close to the end of the mounting portion, and the free end of the clamping block is close to the end of the cross brace.

The utility model discloses a photovoltaic assembly, which comprises a photovoltaic laminate and a photovoltaic frame for installing the photovoltaic laminate. The photovoltaic frame is a novel photovoltaic frame described above in the utility model.

Compared with the prior art, the present invention at least includes the following beneficial effects:

In the new photovoltaic frame, the cross brace can provide mechanical support for the back of the photovoltaic laminate. Therefore, the frame strip is matched with the cross brace to improve the mechanical strength and wind pressure resistance of the entire photovoltaic module. The installation position of the cross brace is related to the junction box. The installation position of the junction box overlaps at least partially, and the junction box itself will block the light, so the installation position of the junction box itself does not have the function of photovoltaic power generation. The light-receiving area of the photovoltaic laminate is reduced due to light, which basically does not affect the photoelectric conversion efficiency of the entire photovoltaic module, and the junction box installation cavity for the junction box is provided in the horizontal brace, which can save installation space and It can well encapsulate and protect the junction box, and the hollow junction box installation cavity can also reduce the weight of the cross brace and facilitate handling.

Description of drawings

FIG. 1 is a schematic diagram of an exploded structure of a novel photovoltaic frame according to this embodiment.

FIG. 2 is a schematic diagram of a longitudinal cross-sectional installation structure of a cross brace and a photovoltaic laminate in a novel photovoltaic frame of the present embodiment.

FIG. 3 is a schematic cross-sectional structure diagram of a left end part of a photovoltaic assembly according to the present embodiment.

FIG. 4 is a schematic three-dimensional structural diagram of a part of the right end of the transverse brace in a novel photovoltaic frame of the present embodiment.

FIG. 5 is a partial front view of the left end of the transverse brace in a novel photovoltaic frame according to the embodiment.

FIG. 6 is a top view of a novel photovoltaic frame of the present embodiment after a junction box is installed.

Description of reference numerals: frame strip 1; first cavity 11; second cavity 12; card slot 121; cross brace 2; junction box installation cavity 21; 231; Adhesive Layer 3; Photovoltaic Laminate 4; Front Sheet 41; Cell Sheet 42; Back Sheet 43; Junction Box 5;

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the present utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Example

A new type of photovoltaic frame of the present embodiment, referring to FIGS. 1-3 , includes a frame bar 1 fixed on the periphery of the photovoltaic laminate 4 and a cross brace 2 installed on the back of the photovoltaic laminate 4 .

In practical applications, the number of frame bars 1 is multiple, and each frame bar 1 is fixed on one side of the photovoltaic laminate 4 . For example, when the photovoltaic laminate 4 has a square structure, the photovoltaic laminate 4 has four sides. At this time, a frame strip 1 is fixed to the four sides of the photovoltaic laminate 4, so the frame strip 1 The number is four; moreover, in order to realize the fixed connection of the two frame bars 1 adjacent to the corners at the corners, the photovoltaic frame also includes a corner code connector 6 to assemble the two frame bars 1 adjacent to the corners; in addition 3, in order to realize the encapsulation of each side of the photovoltaic laminate 4, the frame strip 1 is provided with a first cavity 11 for the side of the photovoltaic laminate 4 to be inserted into. In order to enhance the encapsulation effect, the photovoltaic laminate After the side of the 4 is inserted into the first cavity 11, adhesive can also be injected into the space between the first cavity 11 and the photovoltaic laminate 4 to complete the encapsulation of each side of the photovoltaic laminate 4 .

In an example of this embodiment, referring to FIG. 2 , the photovoltaic laminate 4 includes a front plate 41 , a cell sheet 42 and a back sheet 43 which are sequentially stacked from the front side to the back side thereof; the cell sheet 42 is a photovoltaic cell sheet, It is used to convert light energy into electrical energy; the connection between the front plate 41 and the front side of the battery sheet 42 and between the back side of the battery sheet 42 and the back plate 43 is preferably connected by an encapsulation film.

2-3, the top surface of the cross brace 2 is bonded to the back side of the photovoltaic laminate 4, so that the cross brace 2 can provide mechanical support for the back side of the photovoltaic laminate 4, so the frame bar 1 is matched with the cross brace 2. It can improve the mechanical strength of the whole photovoltaic module. Preferably, the material of the cross brace 2 and the frame bar 1 is preferably steel, and the cross brace 2 and the frame bar 1 made of steel can be made by cutting and cold bending, the production process is simple, and compared with the traditional aluminum frame, because The strength of steel is higher, so high-strength steel can further enhance the mechanical strength of the entire photovoltaic module. Specifically, the top surface of the cross brace 2 is bonded to the back surface of the back sheet 43 of the photovoltaic laminate 4 .

Further, the top surface of the cross brace 2 and the back surface of the photovoltaic laminate 4 are bonded by the adhesive layer 3, and the top surface of the cross brace 2 is provided with a groove 22 for the adhesive layer 3 to be accommodated (as shown in Fig. 1-2 ). Show). The adhesive layer 3 is limited in the groove 22. On the one hand, the adhesive layer 3 can be prevented from being displaced under the action of external force, so that the bonding operation between the top surface of the cross brace 2 and the back surface of the photovoltaic laminate 4 can be prevented. It is more convenient and the bonding position is more accurate; on the other hand, it can effectively avoid the defects of the adhesive layer 3 being aged and degummed due to exposure to the air; the groove 22 is preferably located on the top surface of the cross brace 2 the middle position.

Further, the grooves 22 are arranged along the length direction of the cross brace 2 and run through the left and right ends of the cross brace 2, so that the bonding area between the adhesive layer 3 in the groove 22 and the backside of the photovoltaic laminate 4 can be increased, The adhesion between the adhesive layer 3 and the backside of the photovoltaic laminate 4 is increased. The adhesive layer 3 is preferably a structural adhesive layer, that is, the material of the adhesive layer 3 is preferably a structural adhesive with high strength, large load and good durability, so as to prolong the adhesion between the structural adhesive layer and the photovoltaic laminate 4. junction durability and provide mechanical strength to the photovoltaic laminate 4 .

Wherein, referring to FIG. 1 , the end of the cross brace 2 is installed in the middle of the frame bar 1 , not the end of the frame bar 1 . The installation method between the cross brace 2 and the frame bar 1 may be one or more combinations of bonding, screw connection, snap connection and other existing fixed installation methods. The ends of the cross braces 2 and the frame bars 1 are preferably snap-fitted. Specifically, the left and right end portions of the transverse brace 2 are respectively clamped with the middle portions of the left and right opposite frame bars 1 . Compared with the adhesion and screw connection of the cross brace and the frame in the prior art, the end of the cross brace 2 is clamped with the frame bar 1, which can make the assembly of the cross brace 2 and the frame bar 1 simpler and faster, and compared with adhesion, The snap connection can also ensure that the cross brace 2 and the frame bar 1 are detachable, thereby realizing maintenance and replacement of the cross brace 2 and/or the frame bar 1 .

Specifically, referring to FIG. 3 , the end portion of the cross brace 2 is provided with a mounting portion 23 extending outward along the length direction of the cross brace 2 , the frame bar 1 is provided with a second cavity 12 into which the mounting portion 23 is inserted, and the mounting portion The surface of 23 is provided with a blocking block 231 protruding outward, and the second cavity 12 is provided with a blocking slot 121 for clamping the blocking block 231 . After the mounting portion 23 is inserted into the second cavity 12 , the clamping block 231 and the clamping slot 121 are engaged with each other to ensure the stability of the clamping between the cross brace 2 and the frame bar 1 .

In practice, referring to FIGS. 3-5 , the mounting portion 23 and the end portion of the cross brace 2 are preferably of an integral structure, so that the connection between the cross brace 2 and the mounting portion 23 is more stable and firm. The second cavity 12 is located below the first cavity 11 (as shown in FIG. 3 ), the height of the mounting portion 23 is less than the height of the cross brace 2 , and the upper surface of the mounting portion 23 is lower than the upper surface of the cross brace 2 , The lower surface of the mounting portion 23 is lower than the lower surface of the cross brace 2, so that the mounting portion 23 can be inserted into the second cavity 12 of the frame bar 1 conveniently and quickly, and the mounting portion 23 can be inserted into the second cavity 12 of the frame bar 1. In the cavity 12 and after the side of the photovoltaic laminate 4 is encapsulated in the first cavity 11, the upper surface of the cross brace 2 can be contacted with the back of the photovoltaic laminate 4, so that the cross brace 2 can be a photovoltaic Laminate 4 provides mechanical support.

Further, the fixed end of the clamping block 231 is integrally connected with the surface of the mounting portion 23, and the surface of the mounting portion 23 is partially cut to protrude outward to form the free end of the clamping block 231; in this way, the mounting portion 23 itself can be effectively utilized The clamping block 231 is formed of the same material, so material can be saved, and since the fixed end of the clamping block 231 is integrally connected with the surface of the mounting portion 23 , the connection between the clamping block 231 and the mounting portion 23 can be more stable and firmer. In practice, both the mounting portion 23 and the cross brace 2 are made of steel with cold bending properties, plasticity and high strength; in this way, after cutting, the cold bending properties of the steel can be used to make the free ends of the clamping blocks 231 protrude outwards, so that the The processing procedure of the clamping block 231 is completed, so that the processing of the clamping block 231 is simpler, more convenient and more efficient, and after the clamping block 231 is clamped to the clamping groove 121, the cold bending performance and plasticity of the steel can also be used to make the clamping block 231 free. The end is close to the surface of the mounting part 23 to facilitate the disassembly of the clamping block 231 and the clamping slot 121 , and because the steel has high strength, the clamping block 231 also has high strength, so it can ensure the clamping block 231 and the clamping slot 121 are stably connected sex.

Further, the upper surface of the mounting portion 23 is provided with a blocking block 231 protruding upward, and the lower surface of the mounting portion 23 is provided with a blocking block 231 protruding downward, and the upper and lower parts of the second cavity 12 are provided with clamping blocks. 231, through the clamping blocks 231 on the upper and lower surfaces of the mounting part 23 and the upper and lower clamping grooves 121 of the second cavity 12, the connection between the cross brace 2 and the frame bar 1 can be further enhanced. Stability and firmness of the snap.

Further, the fixed end of the clamping block 231 is close to the end of the mounting part 23, and the free end of the clamping block 231 is close to the end of the cross brace 2; The fixed ends of the clamping blocks 231 and the lower surface are located at the left end of the mounting portion 23, and the free ends of the clamping blocks 231 on the upper surface of the mounting portion 23 are inclined upward from left to right, while the clamping The free end of the block 231 is inclined downward from left to right; for another example, for the mounting portion 23 at the right end of the cross brace 2, the fixed ends of the clamping blocks 231 on the upper and lower surfaces of the mounting portion 23 are both located at the right end of the mounting portion 23 , and the free end of the block 231 on the upper surface of the mounting portion 23 is inclined upward from right to left, while the free end of the block 231 on the lower surface of the mounting portion 23 is inclined downward from right to left; in this way, the block The 231 is in the shape of an inverted tooth, which is more conducive to the clamping and installation of the clamping block 231 in the clamping slot 121, and can effectively prevent the clamping block 231 from being separated from the clamping slot 121 after clamping, so as to make the clamping more firm.

In practice, the photovoltaic laminate 4 is connected with a junction box 5 . 1, 4 and 6, the installation position of the cross brace 2 and the installation position of the junction box 5 at least partially overlap, and the installation position of the junction box 5 does not have the function of photovoltaic power generation. Therefore, the installation position of the cross brace 2 The installation will basically not reduce the light-receiving area of the photovoltaic laminate, and thus will not affect the photoelectric conversion efficiency of the entire photovoltaic module; and the transverse support 2 is provided with a junction box installation cavity 21 for the junction box 5 to be placed, and the junction box installation cavity 21 There is also a wire hole 211 on the top to ensure that the wire connecting the junction box 5 can be drawn out of the entire photovoltaic module after passing through the wire hole 211, and then the electric energy generated by the photovoltaic laminate 4 is exported through the wire, and the junction box 5 Being installed in the cross brace 2 can not only save installation space, but also can well encapsulate and protect the junction box 5 , and the hollow junction box installation cavity 21 can also reduce the weight of the cross brace 2 and facilitate handling.

Specifically, a plurality of junction box installation cavities 21 arranged in parallel are arranged in the transverse support 2 at intervals, so that a plurality of junction boxes 5 can be placed. The top of each junction box installation cavity 21 is provided with a wire hole 211 to facilitate the Electrical connection of the wires to each junction box 5 .

A photovoltaic assembly in this embodiment includes a photovoltaic laminate 4 and a photovoltaic frame for installing the photovoltaic laminate 4 , and the photovoltaic frame is a novel photovoltaic frame described above in this embodiment.

While the preferred embodiments of the present invention have been described, additional changes and modifications to these embodiments may occur to those skilled in the art once the basic inventive concepts are known. Therefore, the appended claims are intended to be construed to include the preferred embodiment and all changes and modifications that fall within the scope of the embodiments of the present invention.

The technical solutions provided by the present utility model have been described in detail above, and the principles and implementations of the present utility model are described with specific examples in this paper. At the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and application scope. In summary, the contents of this specification should not be construed as a reference to the present utility model. limits.

Claims (12)

1. A novel photovoltaic frame is characterized by comprising a frame strip fixed on the periphery of a photovoltaic laminating part and a cross brace arranged on the back surface of the photovoltaic laminating part, wherein the end part of the cross brace is arranged in the middle of the frame strip; the photovoltaic laminating part is connected with a junction box, a junction box mounting cavity for placing a junction box is arranged in the cross brace, and a wire passing hole is further formed in the junction box mounting cavity.

2. The novel photovoltaic frame as claimed in claim 1, wherein a plurality of the terminal box installation cavities are arranged in the cross-brace at intervals, and the top of each terminal box installation cavity is provided with the wire passing hole.

3. The novel photovoltaic border of claim 1, wherein the top surface of said cross-braces and the back surface of said photovoltaic laminate are bonded together by an adhesive layer.

4. The novel photovoltaic border as claimed in claim 3, wherein said cross-brace has a groove on its top surface for receiving said adhesive layer.

5. The novel photovoltaic border as claimed in claim 4, wherein said grooves are disposed along the length of the cross-brace and extend through both ends of the cross-brace.

6. The novel photovoltaic border of claim 3, wherein said adhesive layer is a structural adhesive layer.

7. The novel photovoltaic frame as claimed in claim 1, wherein the ends of the cross-braces are snap-fitted to the frame strips.

8. The novel photovoltaic frame as claimed in claim 7, wherein the end of the cross-brace is provided with a mounting portion extending outward along the length direction of the cross-brace, the frame strip is provided with a cavity into which the mounting portion is inserted, the surface of the mounting portion is provided with a clamping block protruding outward, and a clamping groove for clamping the clamping block is arranged in the cavity.

9. The novel photovoltaic frame as claimed in claim 8, wherein the upper surface and the lower surface of the mounting portion are respectively provided with the clamping blocks protruding upwards and protruding downwards, and the upper portion and the lower portion of the cavity are respectively provided with the clamping grooves for clamping the clamping blocks.

10. The novel photovoltaic border as claimed in claim 8, wherein the fixed end of the clip is integrally connected to the surface of the mounting portion, and the surface of the mounting portion is partially cut and then bent outward to form the free end of the clip.

11. The novel photovoltaic edge frame of claim 10, wherein the fixed ends of the clips are close to the ends of the mounting portions, and the free ends of the clips are close to the ends of the cross-braces.

12. A photovoltaic module comprising a photovoltaic laminate and a photovoltaic border for mounting the photovoltaic laminate, wherein the photovoltaic border is the novel photovoltaic border of any one of claims 1-11.

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