CN211352152U

CN211352152U - Photovoltaic module

Info

Publication number: CN211352152U
Application number: CN201922334513.7U
Authority: CN
Inventors: 付传国; 夏正月; 许涛; 邢国强
Original assignee: CSI Cells Co Ltd; Canadian Solar Manufacturing Changshu Inc
Current assignee: CSI Cells Co Ltd; Canadian Solar Manufacturing Changshu Inc; CSI Solar Technologies Inc
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-25
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a photovoltaic module, including the lamination piece, be fixed in the dorsal part of lamination piece reinforcement and with lamination piece electric connection's terminal box. The junction box is accommodated in the reinforcement. Compared with the prior art, the utility model discloses an in integrating the dorsal part of lamination piece with the terminal box, also make the dorsal part integration of lamination piece higher when playing the guard action to the junction box through the reinforcement, improved the utilization ratio in space, avoided occuping the more space of the dorsal part of lamination piece.

Description

Photovoltaic module

Technical Field

The utility model relates to a solar cell makes technical field, especially a photovoltaic module.

Background

With the continuous development of science and technology, photovoltaic power generation is widely applied to daily life and industry of people as a green, environment-friendly and renewable energy production mode, and the continuous development of national economy is promoted.

Junction boxes are important components of photovoltaic modules for connecting photovoltaic cells while conducting the current generated by the photovoltaic cells for use by a user. Prior art junction boxes are typically secured directly to the backside of the laminate by direct mounting. The connector inside the junction box is only protected by the plastic shell outside the junction box, and the connector cannot effectively protect the junction box.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photovoltaic module to solve technical problem among the prior art, it can be with in the terminal box integrated reinforcement on the lamination piece, with effectual protection terminal box.

The utility model provides a photovoltaic module, which comprises a laminated part, a reinforcing part fixed on the back side of the laminated part and a junction box electrically connected with the laminated part; the junction box is accommodated in the reinforcement.

As a further improvement of the present invention, the reinforcement is provided with a groove for accommodating the junction box.

As a further improvement, the reinforcing member is provided with a bottom plate and a first reinforcing plate and a second reinforcing plate extending from both side edges of the bottom plate, and the groove body is the space enclosed by the first reinforcing plate, the second reinforcing plate and the bottom plate.

As a further improvement of the present invention, the bottom plate is fixed on the back side of the laminated member, and the first reinforcing plate and the second reinforcing plate are respectively vertically connected to the bottom plate;

the opening direction of the groove body points to the direction departing from the laminating piece, and the depth of the groove body is larger than the height of the junction box.

As a further improvement of the present invention, the long side position of the first reinforcing plate is provided with a first connecting plate extending toward the second reinforcing plate, and the long side position of the second reinforcing plate is provided with a second connecting plate extending toward the first reinforcing plate;

the first connecting plate and the second connecting plate extend oppositely to tighten the opening of the groove body.

As a further improvement of the present invention, the first reinforcing plate and/or the second reinforcing plate are provided with a wire groove.

As a further improvement of the present invention, the reinforcing member is provided with a positioning groove, and the positioning groove is opposite to the junction box; the junction box is arranged in the positioning groove.

As a further improvement, the reinforcement is provided with a through hole at the location of the reinforcement, the junction box is arranged at the location of the reinforcement and is fixedly connected with the laminate.

As a further improvement of the utility model, the lamination piece includes relative apron, backplate that sets up and adopts the encapsulation glued membrane to encapsulate in the apron with a plurality of battery strings between the backplate, it is a plurality of battery string interval forms two battery districts, is formed with the clearance between two battery districts, the reinforcement with the position in clearance corresponds the setting, just the width of reinforcement is not more than the width in clearance.

As a further improvement of the present invention, the photovoltaic module further comprises a frame mounted at the edge of the laminate, the two ends of the reinforcement are respectively fixedly connected to the frame.

Compared with the prior art, the utility model discloses an in integrating the dorsal part of lamination piece with the terminal box, also make the dorsal part integration of lamination piece higher when playing the guard action to the junction box through the reinforcement, improved the utilization ratio in space, avoided occuping the more space of the dorsal part of lamination piece.

Drawings

Fig. 1 is a schematic structural diagram of a photovoltaic module disclosed in an embodiment of the present invention;

fig. 2 is an isometric view of a stiffener in a photovoltaic module according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating an assembly of a junction box and a stiffener in a photovoltaic module according to an embodiment of the present invention;

fig. 4 is a left side view of a stiffener in a photovoltaic module according to an embodiment of the present invention;

fig. 5 is a schematic view of an assembly of a laminate and a stiffener in a photovoltaic module according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a junction box in a photovoltaic module disclosed in an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the photovoltaic module disclosed in the embodiment of the present invention after being assembled to the module support frame.

Description of reference numerals: 1-laminate, 11-cell region, 12-gap, 2-frame, 20-channel, 21-stiffener, 210-wire channel, 211-base plate, 2111-positioning hole, 212-first stiffener, 213-second stiffener, 214-first connector plate. 215-second connecting plate, 22-frame, 3-junction box, 4-pivot.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

An embodiment of the utility model discloses a photovoltaic module, it is shown with reference to fig. 1-7, including lamination piece 1, be fixed in 1 dorsal reinforcement 21 of lamination piece and with 1 electric connection's of lamination piece terminal box 3. The junction box 3 is accommodated in the reinforcement 1.

The embodiment of the utility model provides a through with the terminal box setting in the dorsal part of lamination piece reinforcement, also make photovoltaic module integrate higher when playing the guard action to the junction box through the reinforcement, improved the utilization ratio in the dorsal part space of lamination piece, avoided the more problem in the dorsal part space of the shared lamination piece of mounting means that reinforcement and terminal box set up side by side simultaneously.

The photovoltaic module further comprises a frame 22 arranged at the edge of the laminate 1, and the laminate 1 is encapsulated in the frame 22. The laminated part 1 comprises a cover plate, a back plate and a plurality of battery strings which are oppositely arranged and are packaged between the cover plate and the back plate by adopting packaging adhesive films. The reinforcing member 1 is provided on a back plate, and the specific reinforcing member 1 may be bonded to the back plate by silicone rubber. In order to further improve the supporting and reinforcing strength of the reinforcing member 21, two ends of the reinforcing member 21 are respectively fixed on the frame 22, the frame 22 and the reinforcing member 21 form a frame 2 of the photovoltaic module, and the laminated member 1 is supported by the frame 2.

In order to better protect the junction box 3, a groove 20 for accommodating the junction box 3 is provided on the reinforcement 21, and the junction box 3 is configured to be completely accommodated in the groove 20. Specifically, in this embodiment, the reinforcing member 21 is provided with a bottom plate 211, and a first reinforcing plate 212 and a second reinforcing plate 213 extending from two side edges of the bottom plate 211, and the tank body 20 is a space surrounded by the first reinforcing plate 212, the second reinforcing plate 213, and the bottom plate 211.

The reinforcing member formed by the three plates of the first reinforcing plate 212, the second reinforcing plate 213 and the bottom plate 211 can improve the supporting and reinforcing effect of the whole reinforcing member on the laminated member. Meanwhile, a groove body which is surrounded by the first reinforcing plate 212, the second reinforcing plate 213 and the bottom plate 211 and has an opening at one end is used for accommodating the junction box 3, and the junction box 3 can reduce damage caused by external force under the protection effect of the first reinforcing plate 212, the second reinforcing plate 213 and the bottom plate 211.

In this embodiment, in order to facilitate the installation and fixation of the junction box 3, the bottom plate 211 is fixed on the back side of the laminated part 1, specifically, the bottom plate 211 is fixedly installed on the back plate, and the opening direction of the tank body 20 points to the direction away from the laminated part 1, that is, to the direction away from the back plate. The first reinforcing plate 212 and the second reinforcing plate 213 are vertically connected to the base plate 211, respectively. The depth of the groove body 20 is larger than the height of the junction box 3. It should be noted that, since the first reinforcing plate 212 and the bottom plate 211 are vertically connected, the depth of the tank body 20 is substantially the width of the first reinforcing plate 212.

Of course, in another embodiment, the opening of the trough 20 may also face a direction toward the lamination member 1, that is, a direction toward the back plate, in which case the first reinforcing plate 212 and the second reinforcing plate 213 are fixedly connected to the back plate, and the bottom plate 211 is disposed parallel to the back plate. The terminal box 3 is fixed on the reinforcement 21, and then the reinforcement 21 and the terminal box 3 are fixed on the backboard together. This does not facilitate the mounting adjustment and the removal of the terminal block 3.

Further, a plurality of positioning holes 2111 matched with the junction box 3 are formed in the bottom plate 211, and the junction box 3 penetrates through the positioning holes 2111 to be fixed on the back plate. In the present embodiment, the junction box 3 is fixed on the back plate, and the junction box 3 may be adhered to the back plate by silicone. After the junction box 3 is installed and fixed on the back plate, the positioning hole 2111 is in clearance fit with the junction box 3, the positioning hole 2111 can play a role in positioning the installation of the junction box 3, the positioning hole 2111 defines the installation position of the junction box 3, and the positioning hole 2111 can also avoid the problem of deflection of the junction box 3 caused by uncured silica gel after the installation.

In the above embodiment, the terminal box 3 is fixed on the back plate, in another embodiment, the terminal box 3 can be directly fixed on the reinforcement 21, specifically, the positioning plate 211 is provided with a positioning groove adapted to the terminal box 3, and the positioning groove is opposite to the terminal box 3; the junction box 3 is arranged in the positioning groove. The positioning groove also has a positioning function for mounting the junction box 3.

When the frame 2 is fixed to the assembly support frame by installing the notch 20 facing away from the back plate, the reinforcing member 21 is fixed to the rotating shaft 4 of the assembly support frame through the first reinforcing plate 212 and the second reinforcing plate 213. Since the rotating shaft 4 has a cylindrical structure, in order to avoid abrasion of the rotating shaft 4 to the junction box 3 during adjustment of the photovoltaic module around the rotating shaft 4 after the first reinforcing plate 212 and the second reinforcing plate 213 are mounted and fixed, it is necessary to tighten the opening of the groove body 20 or heighten the first reinforcing plate 212 and the second reinforcing plate 213.

In this embodiment, the first connecting plate 214 extending in the direction of the second reinforcing plate 213 is provided at the long side position of the first reinforcing plate 212, and the second connecting plate 215 extending in the direction of the first reinforcing plate 212 is provided at the long side position of the second reinforcing plate 213. The first connecting plate 214 and the second connecting plate 215 extend toward each other to tighten the opening of the tank body 20. The opening of the chute is tightened by the arrangement of the first and second connecting

plates

214 and 215. Since the side wall of the rotating shaft 4 is a cylindrical side wall, when the opening of the slot body 20 is larger, the more the rotating shaft 4 enters into the slot body 20, which is equivalent to the cylindrical rotating shaft 4 being clamped into the slot body 20, the smaller the distance between the rotating shaft 4 and the junction box 3. Accordingly, the smaller the opening of the groove body 20, the less the portion of the rotating shaft 4 entering the groove body 20 and the larger the distance between the rotating shaft 4 and the junction box 3.

When the reinforcing member 21 is fixedly coupled to the shaft 4, one end of the first coupling plate 214 is vertically fixed to the first reinforcing plate 212, and the second end of the first coupling plate 214 is fixedly coupled to the sidewall of the shaft 4. A first end of the second connecting plate 215 is vertically fixed to the second reinforcing plate 213, and a second end of the second connecting plate 215 is fixedly connected to a sidewall of the rotating shaft 4. The arrangement of the first connecting plate 214 and the second connecting plate 215 not only conveniently realizes the connection and fixation of the reinforcing plate and the rotating shaft 4 supporting the reinforcing plate, but also the size of the notch can be effectively controlled by the first connecting plate 214 and the second connecting plate 215 so as to avoid the abrasion of the rotating shaft 4 to the junction box 3.

Further, as shown in fig. 2, since the terminal box 3 is disposed in the slot body 20, at least one of the first reinforcing plate 212 and the second reinforcing plate 213 is provided with a wire guiding groove 210 for facilitating the wire connected to the terminal box 3 to pass through the slot body 20. The wire groove 210 is used for positioning the wires connected with the junction box 3, and the wires can be conveniently led out.

The scheme can also be applied to the double-sided assembly, but because the front side and the back side of the double-sided assembly need to generate electricity, the risk of hot spots caused by the fact that the reinforcing piece 21 is arranged on the back plate and shades the battery piece is avoided. And a plurality of battery strings packaged between the cover plate and the back plate are spaced to form two battery areas 11, and a gap 12 is formed between the two battery areas 11. The reinforcement 21 is located opposite to the gap 12. The bottom plate 211 is fixed at the position of the gap 12, and the width of the bottom plate 211 is not larger than the width of the gap 12. At the moment, the photovoltaic cells in the cell string are double-sided cells, and the back plate and the cover plate are both transparent plates.

By correspondingly arranging the reinforcing members 21 at the positions of the gaps 12 between the adjacent battery areas 11, there is no fear of hot spot risk due to the shielding of the battery pieces by the arrangement of the reinforcing members 21. In addition, the reinforcing member 21 in this embodiment supports the laminated member 1 at the position of the gap 12, so that the problem of poor load capacity of the laminated member 1 caused by the large span of the frame 22 supporting the laminated member 1 in the prior art can be avoided.

In order to better exert the supporting effect of the reinforcing member 21 on the laminate 1, as shown in fig. 1, the gap 12 extends in the width direction of the laminate 1, and the two battery regions 11 are symmetrically distributed with the gap 12 as the center. I.e. two cell zones 11 are arranged in the length direction of the laminate 1, while the gap 12 is located in the middle position in the length direction of the laminate 1. Because the span of the length direction of the laminated member 1 is larger, the reinforcing member 21 provided at the middle position of the length direction of the laminated member 1 can play a role of supporting the laminated member 1 to a higher degree, so that the load capacity of the laminated member 1 can be exerted to the maximum. Of course in other embodiments the gap 12 may also extend along the length of the laminate 1, or the gap 12 may be arranged accordingly according to the actual need, where the position and number of the gap 12 may be arranged.

The structure, features and effects of the present invention have been described in detail above according to the embodiment shown in the drawings, and the above description is only the preferred embodiment of the present invention, but the present invention is not limited to the implementation scope shown in the drawings, and all changes made according to the idea of the present invention or equivalent embodiments modified to the same changes should be considered within the protection scope of the present invention when not exceeding the spirit covered by the description and drawings.

Claims

1. A photovoltaic module comprises a laminated part, a reinforcing part fixed on the back side of the laminated part and a junction box electrically connected with the laminated part; the method is characterized in that: the junction box is accommodated in the reinforcing piece; the reinforcing piece is provided with a groove body for accommodating the junction box; the reinforcing piece is provided with a bottom plate, a first reinforcing plate and a second reinforcing plate, wherein the first reinforcing plate and the second reinforcing plate extend from two side edges of the bottom plate, and the groove body is a space surrounded by the first reinforcing plate, the second reinforcing plate and the bottom plate.

2. The photovoltaic module of claim 1, wherein: the bottom plate is fixed on the back side of the laminated piece, and the first reinforcing plate and the second reinforcing plate are respectively vertically connected with the bottom plate;

3. The photovoltaic module of claim 2, wherein: a first connecting plate extending towards the direction of the second reinforcing plate is arranged at the long side position of the first reinforcing plate, and a second connecting plate extending towards the direction of the first reinforcing plate is arranged at the long side position of the second reinforcing plate;

4. The photovoltaic module of claim 2, wherein: the first reinforcing plate and/or the second reinforcing plate are/is provided with a wire guide groove.

5. The photovoltaic module of claim 1, wherein: the reinforcing piece is provided with a positioning groove, and the positioning groove is opposite to the junction box; the junction box is arranged in the positioning groove.

6. The photovoltaic module of claim 1, wherein: the junction box penetrates through the positioning hole and is fixedly connected with the laminating part.

7. The photovoltaic module of claim 1, wherein: the laminating piece comprises a cover plate, a back plate and a plurality of battery strings, wherein the cover plate and the back plate are oppositely arranged, the battery strings are packaged between the cover plate and the back plate through packaging adhesive films, the battery strings are spaced to form two battery areas, a gap is formed between the two battery areas, the reinforcing piece is arranged corresponding to the position of the gap, and the width of the reinforcing piece is not larger than the width of the gap.

8. The photovoltaic module of claim 1, wherein: the photovoltaic module also comprises a frame arranged at the edge of the laminated piece, and two ends of the reinforcing piece are respectively fixedly connected with the frame.