CN210536550U

CN210536550U - Photovoltaic tile

Info

Publication number: CN210536550U
Application number: CN201922000883.7U
Authority: CN
Inventors: 郭志球; 王娟; 陶春华; 郝国晖; 朱加明; 落全伟
Original assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Co Ltd
Current assignee: Zhejiang Jinko Solar Co Ltd; Jinko Solar Co Ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-05-15
Anticipated expiration: 2029-11-19

Abstract

The application discloses a photovoltaic tile, which comprises a junction box, and a tile, a first packaging layer, a battery string group, a second packaging layer and a transparent substrate which are sequentially stacked from bottom to top; the upper surface of tile has first recess, battery string group is located in the first recess, the lead-out wire of battery string group with the terminal box links to each other. It can be seen that photovoltaic tile in this application includes by terminal box, tile, first encapsulated layer, battery cluster group, second encapsulated layer, transparent substrate, and the tile has replaced the base plate at the back among the conventional photovoltaic module, makes the photovoltaic tile have the advantage of integration to photovoltaic tile in this application need not to set up the base plate at the back, has alleviateed the weight of photovoltaic tile.

Description

Photovoltaic tile

Technical Field

The application relates to the technical field of building integrated photovoltaics, in particular to a photovoltaic tile.

Background

Building Integrated Photovoltaics (BIPV) is a technology that integrates solar power generation products into buildings. In recent years, a roof is used as a laying site of a photovoltaic power station for photovoltaic power generation, and spontaneous self-use and surplus power supply on the internet are a trend.

The existing photovoltaic tile integrates a photovoltaic component and the tile, the weight of the whole photovoltaic tile is heavier, the existing photovoltaic tile is complex in structure, the process of combining the photovoltaic component and the tile has certain difficulty, the waterproof layer of a roof can be damaged in the combining process, the waterproof layer needs to be additionally repaired, the construction cost is increased, and the application of the photovoltaic tile is limited.

Therefore, how to solve the above technical problems should be a great concern to those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photovoltaic tile to make the photovoltaic tile have lightweight, integrated advantage.

In order to solve the technical problem, the photovoltaic tile comprises a junction box, and a tile, a first packaging layer, a battery string group, a second packaging layer and a transparent substrate which are sequentially stacked from bottom to top;

the upper surface of tile has first recess, battery string group is located in the first recess, the lead-out wire of battery string group with the terminal box links to each other.

Optionally, the tiles are planar tiles or curved tiles.

Optionally, when the tile is a planar tile, the lower surface of the tile has a second groove and a through hole, and the junction box is located in the second groove.

Optionally, the length of the tile is greater than the length of the transparent substrate, and the width of the tile is greater than the width of the transparent substrate.

Optionally, the length of the tile ranges from 300mm to 700mm, the width of the tile ranges from 150 mm to 500 mm, and the thickness of the tile ranges from 5mm to 40mm, including all endpoints.

Optionally, the length of the transparent substrate ranges from 250 mm to 600mm, the width of the transparent substrate ranges from 200 mm to 450mm, and the thickness of the transparent substrate ranges from 1 mm to 6 mm, including all end points.

Optionally, the cell in the cell string group is a crystalline silicon solar cell or a thin film solar cell.

Optionally, the battery string set is any one of a stack-tile battery string set, a half-cut battery string set, a split battery string set, and an entire battery string set.

Optionally, the transparent substrate is any one of a tempered glass substrate, a semi-tempered glass substrate, and a polyvinyl chloride substrate.

The photovoltaic tile comprises a junction box, tiles, a first packaging layer, a battery string group, a second packaging layer and a transparent substrate, wherein the tiles, the first packaging layer, the battery string group, the second packaging layer and the transparent substrate are sequentially stacked from bottom to top; the upper surface of tile has first recess, battery string group is located in the first recess, the lead-out wire of battery string group with the terminal box links to each other. It can be seen that photovoltaic tile in this application includes by terminal box, tile, first encapsulated layer, battery cluster group, second encapsulated layer, transparent substrate, and the tile has replaced the base plate at the back among the conventional photovoltaic module, makes the photovoltaic tile have the advantage of integration to photovoltaic tile in this application need not to set up the base plate at the back, has alleviateed the weight of photovoltaic tile.

Drawings

For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a photovoltaic tile provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a tile according to an embodiment of the present application.

Detailed Description

In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

As described in the background section, the existing photovoltaic tiles integrate the photovoltaic module with the tile, resulting in a heavy weight of the entire photovoltaic tile and a complex structure of the existing photovoltaic tiles.

In view of the above, the present application provides a photovoltaic tile, please refer to fig. 1, where fig. 1 is a schematic structural diagram of a photovoltaic tile provided in an embodiment of the present application, the photovoltaic tile includes a junction box, and a tile 1, a first encapsulation layer 2, a cell string group 3, a second encapsulation layer 4, and a transparent substrate 5 sequentially stacked from bottom to top;

the upper surface of tile 1 has first recess, battery cluster 3 is located in the first recess, battery cluster 3's lead-out wire with the terminal box links to each other.

In this embodiment, the photovoltaic tile 1 is manufactured by an integral lamination process, and the purpose of disposing the battery string group 3 in the first groove of the tile 1 is to improve the sealing performance of the photovoltaic tile 1 when the first package layer 2 and the second package layer 4 are used to package the tile 1, the battery string group 3, and the transparent substrate 5 in a lamination and combination manner, so as to ensure the quality of the photovoltaic tile 1 and prolong the service life. The solar rays irradiate on the battery string group 3 after passing through the transparent substrate 5, the light energy is converted into electric energy, and the battery string group 3 conducts the current to the junction box through the outgoing line so as to be further conducted to an external power circuit.

It will be appreciated that the battery string set 3 includes a plurality of battery strings, the number of which depends on the size of the tile 1, and is generally equal to or greater than 2 strings for the tiles 1 commonly used at present. Further, when the number of the battery strings is 2 or more, the junction box is an integrated junction box.

Optionally, the cell in the cell string group 3 is a crystalline silicon solar cell or a thin film solar cell.

Further, when the battery pieces in the battery string group 3 are crystalline silicon solar battery pieces, the type of the battery string group 3 in this embodiment is not particularly limited, and may be determined according to the situation. For example, the battery string set 3 may be any one of a stack battery string set 3, a half-cut battery string set 3, a split battery string set 3, and a full-length battery string set 3. When the cell sheets in the cell string 3 are thin film solar cells, the thin film solar cells may be cadmium telluride (CdTe) thin film solar cells or Copper Indium Gallium Selenide (CIGS) thin film solar cells.

Generally, the first encapsulation layer 2 is one of an ethylene-vinyl acetate copolymer (EVA) film layer, a polyvinyl butyral (PVB) film layer, and an ethylene and octene high Polymer (POE) film layer, and similarly, the second encapsulation layer 4 is one of an ethylene-vinyl acetate copolymer (EVA) film layer, a polyvinyl butyral (PVB) film layer, and an ethylene and octene high Polymer (POE) film layer.

Note that, in the present embodiment, the transparent substrate 5 is not particularly limited, and may be provided by itself. For example, the transparent substrate 5 may be any one of a tempered glass substrate, a semi-tempered glass substrate, and a polyvinyl chloride (PVC) substrate.

It should be noted that the tile 1 is not specifically limited in this embodiment, as the case may be. For example, tile 1 may be a ceramic tile 1, a cement tile 1, a glass tile 1, or the like.

Further, the shape of the tile 1 is also not particularly limited in this embodiment, as the case may be. For example, the tile 1 is a planar tile 1 or a curved tile 1.

Photovoltaic tile 1 in this embodiment includes by terminal box, tile 1, first encapsulated layer 2, battery cluster group 3, second encapsulated layer 4, transparent substrate 5, and tile 1 has replaced the base plate of the back among the conventional photovoltaic module, makes photovoltaic tile 1 have the advantage of integration to photovoltaic tile 1 in this application need not to set up the base plate of back, has lightened photovoltaic tile 1's weight. And, the photovoltaic tile 1 that provides in this embodiment can replace conventional tile 1 directly to spread on the roof, and simple to operate can not destroy the waterproof layer on roof, uses more conveniently, extensively.

On the basis of the above embodiment, in an embodiment of the present application, please refer to fig. 2, when the tile 1 is a planar tile 1, the lower surface of the tile 1 has a second groove and a through hole 7, and the junction box 6 is located in the second groove. Wherein, the outgoing line 8 of the battery string passes through the through hole 7 to be connected with the junction box 6.

In this embodiment, terminal box 6 is located the second recess of 1 lower surfaces of tile, can reduce the whole thickness of photovoltaic tile 1, improves photovoltaic tile 1's aesthetic property, simultaneously, when lamination preparation photovoltaic tile 1, can also improve photovoltaic tile 1's leakproofness, guarantees photovoltaic tile 1's quality.

When the tile 1 is the curved tile 1, the curved tile 1 has an upward arched radian, and the curved tile 1 can directly place the junction box below the arched surface without arranging a groove.

Preferably, in an embodiment of the present application, the length of the tile 1 is greater than the length of the transparent substrate 5, the width of the tile 1 is greater than the width of the transparent substrate 5, and both the length and the width of the tile 1 are greater than the length and the width of the transparent substrate 5, so that when the photovoltaic tile 1 is manufactured by lamination, the edge of the transparent substrate 5 can be tightly combined with the tile 1, and the sealing performance of the photovoltaic tile 1 is improved. And, when using, the flute structure of adjacent photovoltaic tile 1 stacks together, can also eliminate the installation clearance between adjacent tile 1, produces good waterproof nature.

Optionally, the length of the tile 1 ranges from 300mm to 700mm, the width of the tile 1 ranges from 150 mm to 500 mm, and the thickness of the tile 1 ranges from 5mm to 40mm, including all end points; the length of the transparent substrate 5 ranges from 250 mm to 600mm, the width of the transparent substrate 5 ranges from 200 mm to 450mm, and the thickness of the transparent substrate 5 ranges from 1 mm to 6 mm, including all endpoints. The number of battery plates in each string of battery string group 3 is between 4 and 40 plates, including the end point value.

Several photovoltaic tiles are listed in detail below.

The first method comprises the following steps: the photovoltaic tile includes: junction box, ceramic plane tile, EVA glued membrane, fold tile battery cluster group, EVA glued membrane and toughened glass base plate, wherein, ceramic plane tile length is 640mm, and the width is 430mm, and thickness is 25 mm. The length of the toughened glass substrate is 510mm, the width is 340mm, the thickness is 3.2mm, the number of the laminated tiles in the laminated tile battery string group is a plurality of, and the solar battery piece is monocrystalline silicon.

And the second method comprises the following steps: the photovoltaic tile includes: the solar cell module comprises a junction box, a composite ceramic plane tile, an EVA adhesive film, a single crystal half-cut cell string set, an EVA adhesive film and a PVC substrate, wherein the composite ceramic plane tile is 600mm in length, 400mm in width, 25mm in thickness, 470mm in length of the PVC substrate, 340mm in width, 3.2mm in thickness, and 14 half cells in the single crystal half-cut cell string set.

And the third is that: the photovoltaic tile includes: junction box, ceramic curved surface tile, POE glued membrane, piece battery cluster group, POE glued membrane and the half toughened glass base plate of curved surface, wherein, ceramic curved surface tile length is 700mm, and the width is 400mm, and thickness is 25mm, and the length of the half toughened glass base plate of curved surface is 620mm, and the width is 350mm, and thickness is 4mm, and the single crystal piece battery quantity in the piece battery cluster group is 14.

And fourthly: photovoltaic tile structure includes from bottom to top in proper order: junction box, cement plane tile, PVB rete, whole piece battery cluster group, PVB rete and PVC base plate, wherein, cement plane tile length is 450mm, and the width is 400mm, and thickness is 25mm, and the length of PVC base plate is 380mm, and the width is 330mm, and thickness is 3mm, and whole piece battery quantity of polycrystalline silicon is 4 in the whole piece battery cluster group.

And a fifth mode: photovoltaic tile structure includes from bottom to top in proper order: junction box, ceramic curved surface tile, PVB rete, solar cell cluster, PVB rete and curved surface glass substrate, wherein, ceramic curved surface tile length is 440mm, and the width is 300mm, and thickness is 25mm, and curved surface glass substrate's length is 340mm, and the width is 350mm, and thickness is 4mm, and the solar wafer is CIGS thin-film solar cell in the solar cell cluster.

And a sixth mode: photovoltaic tile structure includes from bottom to top in proper order: junction box, ceramic plane tile, PVB rete, solar cell cluster group, PVB rete and plane glass substrate, wherein, ceramic plane tile length is 450mm, and the width is 300mm, and thickness is 25mm, and the length of plane glass substrate is 340mm, and the width is 230mm, and thickness is 4mm, and the solar wafer is CdTe thin-film solar cell in the solar cell cluster group.

The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The photovoltaic tiles provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A photovoltaic tile is characterized by comprising a junction box, tiles, a first packaging layer, a battery string group, a second packaging layer and a transparent substrate, wherein the tiles, the first packaging layer, the battery string group, the second packaging layer and the transparent substrate are sequentially stacked from bottom to top;

2. The photovoltaic tile according to claim 1 wherein the tile is a planar tile or a curved tile.

3. The photovoltaic tile according to claim 2 wherein when the tile is a planar tile, the lower surface of the tile has a second recess and has a through hole therethrough, the junction box being located in the second recess.

4. The photovoltaic tile according to claim 1 wherein the tile has a length greater than a length of the transparent substrate and the tile has a width greater than a width of the transparent substrate.

5. The photovoltaic tile according to claim 4 wherein the length of the tile ranges from 300mm to 700mm, the width of the tile ranges from 150 mm to 500 mm, and the thickness of the tile ranges from 5mm to 40mm, inclusive.

6. The photovoltaic tile according to claim 5 wherein the transparent substrate has a length ranging from 250 mm to 600mm, a width ranging from 200 mm to 450mm, and a thickness ranging from 1 mm to 6 mm, inclusive.

7. The photovoltaic tile according to claim 1 wherein the cells in the string are crystalline silicon solar cells or thin film solar cells.

8. The photovoltaic tile according to claim 1 wherein the cell string is any one of a stacked cell string, a cut-to-half cell string, a tiled cell string, and a monolithic cell string.

9. The photovoltaic tile according to any one of claims 1 to 8 wherein said transparent substrate is any one of a tempered glass substrate, a semi-tempered glass substrate, a polyvinyl chloride substrate.