Photovoltaic tile assembly and roof photovoltaic system

Abstract

The utility model relates to a photovoltaic tile assembly and a roof photovoltaic system. The photovoltaic tile assembly comprises a connecting structure and a plurality of photovoltaic tiles, each photovoltaic tile comprises a first packaging plate, a second packaging plate and a battery piece, and the first packaging plate extends out relative to the second packaging plate, so that a connecting surface used for being connected with the connecting structure is formed on the lower end surface of the first packaging plate; a connecting surface connected with the connecting structure is formed on the side surface of the second packaging plate, so that the first packaging plate and the second packaging plate can be connected through the connecting structure, and reliable packaging of the photovoltaic tile is realized; for the photovoltaic tile on the right side, the upper end face and the side face of the second packaging plate form a connecting face used for being connected with the connecting structure, so that adjacent photovoltaic tiles can also be connected through the connecting structure, a frame structure does not need to be arranged, the space of a battery piece is not occupied, the battery piece is not shielded, and the effective power generation area of the battery piece is guaranteed. And meanwhile, the surface of the photovoltaic tile is not shielded by the frame structure, so that the attractive degree of the roof is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to photovoltaic tile assemblies and rooftop photovoltaic systems. Background Art

[0002] With the development of new energy technology and building energy-saving technology, the application of new energy in the construction field is becoming more and more extensive, and the application forms are becoming more diversified. Among them, photovoltaic tiles are a technology that combines the use of solar energy with roofing building materials. Specifically, photovoltaic tiles refer to the integration of photovoltaic cells into a structure similar to traditional roof tiles, so that they can not only play the role of roof covering materials, but also use solar energy to generate electricity. This design allows photovoltaic tiles to directly replace conventional roofing materials and achieve building integration. It is both beautiful and practical, and is an important part of promoting green buildings and renewable energy applications.

[0003] In the related art, a frame is generally set around the photovoltaic tiles to fix the encapsulated tiles. However, the frame will inevitably block the solar cells, which will affect the power generation efficiency and the appearance of the roof. Utility Model Content

[0004] Based on this, it is necessary to provide a photovoltaic tile assembly to address the problem of existing photovoltaic tiles affecting power generation efficiency.

[0005] A photovoltaic tile assembly, comprising:

[0006] A plurality of photovoltaic tiles, wherein the plurality of photovoltaic tiles are arranged along an arrangement direction; each of the photovoltaic tiles comprises a first packaging board, a second packaging board, and a solar cell connected between the first packaging board and the second packaging board, and one of the first packaging board and the second packaging board extends relative to the other, so that a gap is formed between two adjacent photovoltaic tiles; the arrangement direction intersects with the lamination direction;

[0007] The connecting structure is arranged in the gap and connected to the first packaging board and the second packaging board to connect two adjacent photovoltaic tiles.

[0008] In one embodiment, the second packaging plate extends relative to the battery cell;

[0009] The connection structure has a first connection surface, a second connection surface and a third connection surface which are adjacent to each other in sequence. The first connection surface and the third connection surface are respectively connected to the lamination surface of the first packaging board and the side surface of the second packaging board. The second connection surface is connected to the side surface of the battery cell.

[0010] In one embodiment, the connection structure includes a connection member, a first adhesive is connected between the connection member and the first packaging board; a second adhesive is connected between the connection member and the second packaging board; and / or

[0011] A third adhesive is connected between the connecting member and the battery cell.

[0012] In one embodiment, the two adjacent photovoltaic tiles are named as the first photovoltaic tile and the second photovoltaic tile respectively;

[0013] The connection structure further includes a sealant, at least a portion of which is connected between the first encapsulation panel of the first photovoltaic tile and the second encapsulation panel of the second photovoltaic tile.

[0014] In one embodiment, the sealing member is connected to the connecting member, and the sealing member and the connecting member are arranged along the arrangement direction.

[0015] In one embodiment, the sealing member and the connecting member are respectively provided with a first clamping portion and a second clamping portion for clamping with the first clamping portion.

[0016] In one embodiment, one of the first clamping portion and the second clamping portion includes a first protrusion, and the other includes a first clamping groove for clamping with the first protrusion.

[0017] In one embodiment, the sealing member is provided with a plurality of extrusion parts on the end surfaces facing the first packaging plate and the second packaging plate, and deformation grooves are provided between adjacent extrusion parts.

[0018] In one embodiment, a portion of the sealant is connected between the first encapsulation panel of the first photovoltaic tile and the first encapsulation panel of the second photovoltaic tile.

[0019] A rooftop photovoltaic system comprises the photovoltaic tile assembly as described above.

[0020] In the above-mentioned photovoltaic tile assembly, since one of the first packaging board and the second packaging board extends relative to the other to form a gap between the first packaging board and the second packaging board, the first packaging board and the second packaging board of the same photovoltaic tile can be connected through the connecting structure, thereby realizing reliable packaging of the photovoltaic tile; at the same time, adjacent photovoltaic tiles can also be connected through the connecting structure, without the need to set up a frame structure, so that the space of the battery cell will not be occupied and the battery cell will not be blocked, thereby ensuring the effective power generation area of ​​the battery cell; at the same time, the surface of the photovoltaic tile is not blocked by the frame structure, thereby improving the aesthetics of the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of a photovoltaic tile assembly provided in one embodiment of the present application.

[0022] FIG. 2 is a partial side view of the photovoltaic tile assembly shown in FIG. 1 .

[0023] FIG. 3 is a schematic diagram of the connection structure in the photovoltaic tile assembly shown in FIG. 2 .

[0024] FIG. 4 is a partial schematic diagram of the connection structure in the photovoltaic tile assembly shown in FIG. 3 .

[0025] FIG. 5 is a schematic diagram of a connection structure in a photovoltaic tile provided in another embodiment of the present application.

[0026] Figure numbers: 100, photovoltaic tile; 110, first packaging board; 120, second packaging board; 130, battery cell; 200, connection structure; 210, connector; 211, first connection surface; 212, second connection surface; 213, third connection surface; 214, first clamping part; 221, first adhesive; 222, second adhesive; 223, third adhesive; 230, sealing part; 231, second clamping part; 232, extrusion part; 233, deformation groove. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] Referring to FIG. 1 and FIG. 2 , a photovoltaic tile assembly provided by an embodiment of the present application includes a connection structure 200 and a plurality of photovoltaic tiles 100, wherein the plurality of photovoltaic tiles 100 are arranged along an arrangement direction; each photovoltaic tile 100 includes a first packaging board 110, a second packaging board 120, and a battery cell 130 connected between the first packaging board 110 and the second packaging board 120, which are arranged along a lamination direction, and one of the first packaging board 110 and the second packaging board 120 extends relative to the other, so that a gap is formed between two adjacent photovoltaic tiles 100; the arrangement direction intersects with the lamination direction; the connection structure 200 is disposed in the gap and connected to the first packaging board 110 and the second packaging board 120 to connect two adjacent photovoltaic tiles 100. As shown in FIG. 2 , the arrangement direction is indicated by arrow X, and the lamination direction is indicated by arrow Y.

[0034] Specifically, as shown in FIG2 , the arrangement of the first encapsulation board 110 and the second encapsulation board 120 allows a gap to exist between two adjacent photovoltaic tiles 100. For the photovoltaic tile 100 on the left, since the first encapsulation board 110 extends relative to the second encapsulation board 120, the lower end surface of the first encapsulation board 110 forms a connection surface for connecting with the connection structure 200, and the side surface of the second encapsulation board 120 forms a connection surface for connecting with the connection structure 200, so the first encapsulation board 110 and the second encapsulation board 120 can be connected through the connection structure 200 to achieve reliable encapsulation of the photovoltaic tile 100; for the photovoltaic tile 100 on the right, the upper end surface and the side surface of the second encapsulation board 120 form a connection surface for connecting with the connection structure 200, so the adjacent photovoltaic tiles 100 can also be connected through the connection structure 200, without the need to set a frame structure, so that the space of the battery cell 130 will not be occupied and the battery cell 130 will not be blocked, thereby ensuring the effective power generation area of ​​the battery cell 130; at the same time, the surface of the photovoltaic tile 100 is not blocked by the frame structure, thereby improving the aesthetics of the roof. Among them, the first packaging board 110 can be conductive glass, such as float glass, embossed glass, tempered glass, anti-reflective glass, etc., and the second packaging board 120 can be packaging glass, such as soda-lime packaging glass, ultra-white packaging glass, tempered packaging glass, etc.

[0035] Referring to FIGS. 2 to 4 , in one embodiment, the second package board 120 extends relative to the battery cell 130; the connection structure 200 has a first connection surface 211, a second connection surface 212 and a third connection surface 213 that are adjacent to each other in sequence, the first connection surface 211 and the third connection surface 213 are respectively connected to the lamination surface of the first package board 110 and the side surface of the second package board 120, and the second connection surface 212 is connected to the side surface of the battery cell 130. The lamination surface is the end surface arranged along the lamination direction, for example, the lamination surface of the first package board 110 includes its lower end surface; the side surface is the end surface arranged along the arrangement direction, for example, the side surface of the second package board 120 is its right end surface. The second packaging board 120 extends relative to the battery cell 130, so that part of the connection structure 200 is connected to the battery cell 130, thereby improving the packaging effect of the first packaging board 110 and the second packaging board 120 on the battery cell 130, and at the same time, it can also improve the barrier effect on the battery cell 130 to prevent water vapor erosion. It can be understood that in other embodiments, the side of the second packaging board can also be flush with the side of the battery cell.

[0036] Referring to FIGS. 2 to 4 , in one embodiment, the first package board 110 and the second package board 120 both extend relative to the battery cell 130, and the connection structure 200 includes a connector 210, a first adhesive 221 is connected between the connector 210 and the laminated surface of the first package board 110, a second adhesive 222 is connected between the connector 210 and the side surface of the second package board 120, and a third adhesive 223 is connected between the connector 210 and the side surface of the battery cell 130. The connector 210 may be a multi-molecule material or a metal material. The first adhesive 221, the second adhesive 222 and the third adhesive 223 can all be solid adhesives, for example, they can be one or more of thermosetting acrylic adhesives, polyester adhesives, polyurethane adhesives, polyamide adhesives, etc., so that the connection structure 200 and the first packaging board 110, the second packaging board 120 and the battery cell 130 can be laminated together under high temperature to achieve the connection between the connection structure 200 and the photovoltaic tile 100, and improve the connection reliability between the two. At the same time, the first adhesive 221, the second adhesive 222 and the third adhesive 223 can all play a waterproof and dustproof effect, improving the waterproof performance of the photovoltaic tile assembly.

[0037] Referring to FIGS. 2 to 4 , in one embodiment, two adjacent photovoltaic tiles 100 are named as the first photovoltaic tile and the second photovoltaic tile, respectively; for example, the photovoltaic tile 100 on the left is the first photovoltaic tile, and the photovoltaic tile 100 on the right is the second photovoltaic tile, and the connection structure 200 further includes a seal 230, and the seal 230 is connected between the first packaging board 110 of the first photovoltaic tile and the second packaging board 120 of the second photovoltaic tile. The combination of the seal 230 and the connector 210 makes the connection structure 200 as a whole approximately T-shaped, and the seal 230 can specifically be a sealing strip, which can be connected between two adjacent photovoltaic tiles 100, on the one hand, realize the connection of adjacent photovoltaic tiles 100, and on the other hand, can seal the gap between adjacent photovoltaic tiles 100, thereby improving the waterproof and dustproof performance.

[0038] Referring to FIGS. 2 to 4 , in one embodiment, the seal 230 is connected to the connector 210, and the seal 230 and the connector 210 are arranged along the arrangement direction. In this way, the connector 210 is used to connect the first package board 110 and the second package board 120 of the same photovoltaic tile 100, and the seal 230 is used to connect the first package board 110 and the second package board 120 of adjacent photovoltaic tiles 100, so as to achieve reliable connection of the photovoltaic tiles 100.

[0039] 2 to 4, in one embodiment, the sealing member 230 and the connecting member 210 are respectively provided with a first clamping portion 214 and a second clamping portion 231 for clamping with the first clamping portion 214. Through the clamping cooperation between the first clamping portion 214 and the second clamping portion 231, the sealing member 230 can be firmly connected to the connecting member 210, thereby improving the connection effect between the two.

[0040] Specifically, one of the first clamping portion 214 and the second clamping portion 231 includes a first protrusion, and the other includes a first clamping groove for clamping with the first protrusion. For example, in the embodiment shown in FIG. 3 , the first clamping groove is provided on the connecting member 210, and the first protrusion is provided on the sealing member 230, and the first protrusion is T-shaped, and the corresponding first clamping groove is a T-shaped groove, so that when the first protrusion is clamped in the first clamping groove, the first protrusion is not easy to fall out of the first clamping groove due to the limitation of the first clamping groove wall, thereby improving the connection effect of the connecting member 210 and the sealing member 230. Of course, in other embodiments, the setting positions of the first protrusion and the first clamping groove can be interchanged, that is, the first protrusion is provided on the connecting member, and the first clamping groove is provided on the sealing member.

[0041] Referring to FIGS. 2 to 4 , in one embodiment, the end surface of the seal 230 facing the first packaging board 110 and the second packaging board 120 is provided with a plurality of extrusion parts 232, and a deformation groove 233 is provided between adjacent extrusion parts 232. When the seal 230 is clamped between the first packaging board 110 and the second packaging board 120, since the seal 230 is an elastic body and the extrusion parts 232 are provided on the upper and lower surfaces, it can be deformed under the extrusion of the first packaging board 110, and the deformation groove 233 provides deformation space for the extrusion parts 232, thereby increasing the connection effect between the seal 230 and the first packaging board 110 (the second packaging board 120), thereby improving the sealing effect between adjacent photovoltaic tiles 100, and further improving the waterproof and dustproof effect.

[0042] Referring to FIG. 2 , in some embodiments, there is a gap between the first encapsulation board 110 of the first photovoltaic tile and the first encapsulation board 110 of the second photovoltaic tile. On the one hand, it is used as a decorative seam to separate the panels and avoid dullness; on the other hand, it is used as a stress release seam to absorb the deformation of the encapsulation board due to thermal expansion and contraction to avoid the first encapsulation board 110 of the adjacent photovoltaic tile 100 from being crushed.

[0043] Referring to Fig. 5, in another embodiment, part of the seal 230 is connected between the first encapsulation board 110 of the first photovoltaic tile and the first encapsulation board 110 of the second photovoltaic tile. In this way, the seal 230 can not only play a decorative role, but also absorb the deformation caused by thermal expansion and contraction, and can also increase the waterproof and dustproof capabilities of the photovoltaic tile assembly.

[0044] Furthermore, an embodiment of the present application also provides a rooftop photovoltaic system, including the photovoltaic tile assembly as described above, which is fixedly connected to the roof, making full use of roof resources to make the roof a photovoltaic power station to provide electricity for residents.

[0045] Since the rooftop photovoltaic system includes the photovoltaic tile assembly of any of the aforementioned embodiments, there is no need to set up a frame structure when installing adjacent photovoltaic tiles 100, so it will not occupy the space of the battery cell 130 and block the battery cell 130, thereby ensuring the effective power generation area of ​​the battery cell 130; at the same time, the surface of the photovoltaic tile 100 is not blocked by the frame structure, thereby improving the aesthetics of the roof.

[0046] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A photovoltaic tile assembly, characterized in that: The photovoltaic tile assembly comprises: A plurality of photovoltaic tiles (100), wherein the plurality of photovoltaic tiles (100) are arranged along an arrangement direction; each photovoltaic tile (100) comprises a first packaging board (110), a second packaging board (120) and a battery cell (130) connected between the first packaging board (110) and the second packaging board (120) arranged along a lamination direction, and one of the first packaging board (110) and the second packaging board (120) extends relative to the other, so that a gap is formed between two adjacent photovoltaic tiles (100); the arrangement direction intersects with the lamination direction; A connection structure (200) is arranged in the gap and connected to the first packaging board (110) and the second packaging board (120) so as to connect two adjacent photovoltaic tiles (100).

2. The photovoltaic tile assembly according to claim 1, characterized in that: The second packaging plate (120) protrudes relative to the battery sheet (130); The connection structure (200) has a first connection surface (211), a second connection surface (212), and a third connection surface (213) which are adjacent to each other in sequence; the first connection surface (211) and the third connection surface (213) are respectively connected to the laminated surface of the first packaging board (110) and the side surface of the second packaging board (120); and the second connection surface (212) is connected to the side surface of the battery cell (130).

3. The photovoltaic tile assembly according to claim 1, characterized in that: The connection structure (200) comprises a connection member (210), a first adhesive (221) being connected between the connection member (210) and the first packaging board (110); a second adhesive (222) being connected between the connection member (210) and the second packaging board (120); and / or A third adhesive (223) is connected between the connecting member (210) and the battery cell (130).

4. The photovoltaic tile assembly according to claim 3, characterized in that: The two adjacent photovoltaic tiles (100) are respectively named as a first photovoltaic tile and a second photovoltaic tile; The connection structure (200) further comprises a seal (230), at least a portion of which is connected between the first encapsulation plate (110) of the first photovoltaic tile and the second encapsulation plate (120) of the second photovoltaic tile.

5. The photovoltaic tile assembly according to claim 4, characterized in that: The sealing member (230) is connected to the connecting member (210), and the sealing member (230) and the connecting member (210) are arranged along the arrangement direction.

6. The photovoltaic tile assembly according to claim 5, characterized in that: The sealing member (230) and the connecting member (210) are respectively provided with a first clamping portion (214) and a second clamping portion (231) for clamping with the first clamping portion (214).

7. The photovoltaic tile assembly according to claim 6, characterized in that: One of the first clamping portion (214) and the second clamping portion (231) comprises a first protrusion, and the other comprises a first clamping groove for clamping with the first protrusion.

8. The photovoltaic tile assembly according to claim 7, characterized in that: The sealing member (230) is provided with a plurality of extrusion portions (232) on the end surfaces facing the first packaging plate (110) and the second packaging plate (120), and deformation grooves (233) are provided between adjacent extrusion portions (232).

9. The photovoltaic tile assembly according to claim 4, characterized in that: A portion of the seal (230) is connected between the first encapsulation plate (110) of the first photovoltaic tile and the first encapsulation plate (110) of the second photovoltaic tile.

10. A rooftop photovoltaic system, characterized in that: Comprising the photovoltaic tile assembly according to any one of claims 1 to 9.

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