CN208806266U

CN208806266U - photovoltaic device

Info

Publication number: CN208806266U
Application number: CN201821780130.1U
Authority: CN
Inventors: 刘爽; 黄猛; 袁金荣; 南树功; 吴立伟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2019-04-30
Anticipated expiration: 2028-10-31

Abstract

The utility model relates to a photovoltaic device, which comprises a plurality of photovoltaic components; and the first sealing element (3) and the second sealing element (4) are respectively arranged at the mutually connected parts on the adjacent photovoltaic modules and used for sealing the photovoltaic modules, and the first sealing element (3) and the second sealing element (4) are configured to realize the sealing connection between the adjacent photovoltaic modules through shape matching. The photovoltaic device can improve the sealing performance between adjacent photovoltaic modules, so that water on the surface of the photovoltaic device is not easy to leak from the joints of the photovoltaic modules and is easy to discharge, and the reliability of the photovoltaic device in the use process can be improved; and the connecting difficulty between adjacent photovoltaic modules can be reduced, so that the splicing efficiency of the photovoltaic device is improved.

Description

Photovoltaic device

Technical Field

The utility model relates to a solar energy power generation technical field especially relates to a photovoltaic device.

Background

The photovoltaic module is a core part in a solar power generation system and also is the most important part in the solar power generation system, and the photovoltaic module has the function of converting solar energy into electric energy and transmitting the electric energy to a storage battery for storage or pushing a load to work.

The existing photovoltaic module generally adopts a dual-glass photovoltaic module, as shown in fig. 1 and fig. 2, a battery piece 2a is clamped between two layers of glass plates 1a, and a gap between the two layers of glass plates 1a is sealed and fixed by a sealant 3 a. As shown in fig. 1, the sealing is performed in a non-hemming manner, and the sealant 3a is filled in a gap between edges of two glass plates 1 a. As shown in fig. 2, the sealing is performed in the form of a C-shaped hem, and the sealant 3a forms a C-shaped hem on the side surfaces of the two glass sheets 1 a.

To the double-glass photovoltaic module who adopts two kinds above sealed forms, can appear the clearance when splicing two double-glass photovoltaic modules. In the prior art, two modes are generally adopted for splicing and mounting, one mode is that a pressing block is adopted for mounting, a gap of the pressing block needs to be reserved between two double-glass photovoltaic modules, and the lighting area of a photovoltaic array can be reduced; secondly, adopt plane adhesive tape seal installation, the process is loaded down with trivial details and the adhesive tape drops easily. Therefore, the sealing between the adjacent double-glass photovoltaic modules is difficult to realize by the two splicing modes.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a photovoltaic device can improve the leakproofness of adjacent photovoltaic module in the junction.

In one aspect, the embodiment of the present invention provides a photovoltaic device, including:

a plurality of photovoltaic modules; and

the first sealing element and the second sealing element are respectively arranged at the mutually connected parts of the adjacent photovoltaic modules and used for sealing the photovoltaic modules, and the first sealing element and the second sealing element are configured to realize the sealing connection between the adjacent photovoltaic modules through shape matching.

Further, a concave-convex matching structure is arranged between the first sealing element and the second sealing element so as to realize mutual embedding.

Further, the concave-convex matching structure is configured to realize bidirectional limiting in the thickness direction of the photovoltaic module.

Further, the end part of the first sealing element is only provided with a convex structure, and the end part of the second sealing element is only provided with a concave structure; or,

the end parts of the first sealing element and the second sealing element are both provided with a concave structure and a convex structure.

Further, the matching surface of the first sealing element and the second sealing element is an inclined surface, an arc surface or a stepped surface.

Further, the first sealing member and the second sealing member are not higher than a surface of the photovoltaic module perpendicular to the thickness direction in the fitted state.

Further, the first sealing member and the second sealing member have the same size in the thickness direction of the photovoltaic module.

Further, the first sealing member and the second sealing member are both consistent with the thickness dimension of the photovoltaic module.

Furthermore, the first sealing element and the second sealing element are coated with sealing glue at the mutual embedded part.

Furthermore, the photovoltaic device also comprises a fastener, and a mounting hole is arranged on a structure formed by matching the first sealing element and the second sealing element and used for enabling the fastener to penetrate through the mounting hole to fix the adjacent photovoltaic module on a mounting bracket of the photovoltaic device.

Further, the photovoltaic device also comprises a gasket, and the gasket is arranged between the structures formed by the fasteners and the first sealing element and the second sealing element in a matched mode.

In order to achieve the above object, an embodiment of the present invention provides a photovoltaic device, including:

a single photovoltaic module; and

the first sealing element and/or the second sealing element are/is arranged at the edge of the photovoltaic module and used for sealing the photovoltaic module, the first sealing element is used for realizing sealing connection with the second sealing elements at the edges of other photovoltaic modules through shape matching, and the second sealing element is used for realizing sealing connection with the first sealing elements at the edges of other photovoltaic modules through shape matching.

Based on the technical scheme, the utility model discloses a photovoltaic device of an embodiment, including establishing first sealing member and the second sealing member at adjacent photovoltaic module last interconnect position respectively for seal the photovoltaic module at place, and first sealing member and second sealing member are configured to realize the sealing connection between the adjacent photovoltaic module through shape fit. The photovoltaic device can improve the sealing performance between adjacent photovoltaic modules, so that water on the surface of the photovoltaic device is not easy to leak from the joints of the photovoltaic modules and is easy to discharge, and the reliability of the photovoltaic device in the use process can be improved; and the connecting difficulty between adjacent photovoltaic modules can be reduced, so that the splicing efficiency of the photovoltaic device is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

FIG. 1 is a schematic structural view of a double-glass photovoltaic module without edge covering;

FIG. 2 is a schematic structural diagram of a double-glass photovoltaic module provided with a C-shaped edge;

fig. 3 is an exploded view of an embodiment of the photovoltaic device of the present invention;

fig. 4 is an exploded schematic view of another embodiment of the photovoltaic device of the present invention;

fig. 5 is the utility model discloses photovoltaic device fixed connection is the schematic structure diagram on the installing support.

Description of the reference numerals

1a, a glass plate; 2a, battery pieces; 3a, sealing glue;

1. a glass plate; 2. a battery piece; 3. a first seal member; 4. a second seal member; 5. a fastener; 6. and (7) a gasket.

Detailed Description

The present invention will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Aspects so defined may be combined with any other aspect or aspects unless clearly indicated to the contrary. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features considered to be preferred or advantageous.

The terms "first", "second", and the like in the present invention are used for convenience of description only to distinguish different constituent elements having the same name, and do not indicate a sequential or primary-secondary relationship.

In the description of the present invention, the directions or positional relationships indicated by "upper", "lower", "top", "bottom", "front", "rear", "inner" and "outer" are used as the directions or positional relationships indicated by the drawings, and are only for convenience of description of the present invention, and it is not intended to indicate or imply that the device indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention.

As shown in fig. 3-5, the present invention provides a photovoltaic device, which in one illustrative embodiment comprises: first sealing member 3, second sealing member 4 and a plurality of photovoltaic module, wherein, photovoltaic module can adopt single glass photovoltaic module or dual-glass photovoltaic module, and photovoltaic module in fig. 3 and 4 adopts dual-glass photovoltaic module, includes two glass plates 1 and the panel of clamp between two glass plates 1, and for example, glass plate 1 adopts toughened glass board.

The first sealing element 3 and the second sealing element 4 are respectively arranged at the mutually connected parts of the adjacent photovoltaic modules, are fixed at the edges of the photovoltaic modules in a wrapping mode and are used for sealing the photovoltaic modules, and the first sealing element 3 and the second sealing element 4 are configured to realize the sealing connection between the adjacent photovoltaic modules through shape matching. Preferably, the first sealing member 3 and the second sealing member 4 form a rectangular structure by shape fitting. The photovoltaic modules are arranged in an array and are hermetically connected with the edges of the adjacent photovoltaic modules to form an integral photovoltaic device.

The utility model discloses a photovoltaic device of this embodiment possesses one of following advantage at least:

1. the adjacent photovoltaic modules are positioned at the edges and connected through shape matching, gaps between the first sealing pieces 3 and the second sealing pieces 4 can be eliminated, and the sealing pieces at the edges of the adjacent photovoltaic modules are tightly matched, so that the sealing performance between the adjacent photovoltaic modules can be improved, water on the surface of the photovoltaic device is not easy to leak from the joints of the photovoltaic modules and is easy to discharge, and the reliability of the photovoltaic device in the using process can be improved. For example, when the photovoltaic device is used for forming a roof, the phenomenon of roof water leakage can be reduced.

2. The connection of adjacent photovoltaic module is realized through the cooperation of first sealing member 3 and 4 shapes of second sealing member, compares with the mode that sets up briquetting or adhesive tape, can reduce the connection degree of difficulty, improves photovoltaic device's concatenation efficiency, does not need other appurtenance when the concatenation.

3. Compared with a mode of sealing by sticking an adhesive tape, the sealing element for wrapping the photovoltaic assembly is not easy to fall off, and the sealing reliability and the service life between the adjacent photovoltaic assemblies can be improved.

4. The adjacent photovoltaic modules are connected in a seamless sealing mode, the flatness of the photovoltaic device can be improved, the photovoltaic device is attractive, and water on the surface of the photovoltaic device can be drained.

5. The first sealing element 3 and the second sealing element 4 are positioned between the side parts of the adjacent photovoltaic modules, the lighting area of each photovoltaic module can not be reduced, and the lighting capacity of the photovoltaic device can be ensured.

In some embodiments, as shown in fig. 3 and 4, a male-female fit structure is provided between the first sealing member 3 and the second sealing member 4 to achieve mutual engagement through butt joint. Through the mode that this kind of form fit realized sealing connection, be favorable to fixing a position photovoltaic module when the concatenation, still can increase the reliability of connecting between two sealing members to follow-up is fixed in photovoltaic device on the installing support more easily. Moreover, the concave-convex matching structure can form a bent matching surface, so that the sealing path is prolonged, and the sealing performance can be improved.

Preferably, the sealing member can adopt EVA rubber with high hardness, and the first sealing member 3 and the second sealing member 4 adopt a tight-fit mosaic structure, so that the sealing effect can be optimized through mutual extrusion of the sealing materials after connection.

Alternatively, the first sealing member 3 and the second sealing member 4 are triangular structures, for example, a right triangle structure can be adopted, and the hypotenuses of the two right triangles are matched and can be spliced into a rectangle to realize sealing connection. The sealing element with the structure can reduce the manufacturing difficulty of the die when the sealing element is formed by the die. In this case, the mating surface is a bevel. Furthermore, a concave-convex matching structure can be arranged on the inclined plane.

Specifically, as shown in fig. 3 and 4, the end of the first sealing member 3 is only provided with a convex structure, and the end of the second sealing member 4 is only provided with a concave structure, so that when the mold is used for forming, the manufacturing difficulty of the mold can be reduced, and the convex structure on the first sealing member 3 and the concave structure on the second sealing member 4 are easy to align, so that the splicing difficulty of adjacent photovoltaic modules can be reduced.

Or both the ends of the first seal 3 and the second seal 4 are provided with a concave structure and a convex structure. For example, the concave structure and the convex structure constitute a wave-shaped or zigzag-shaped structure. The structure can prolong the sealing path and optimize the sealing effect.

In some embodiments, still referring to fig. 3 and 4, the male-female mating structure is configured to achieve bi-directional limiting in the thickness direction of the photovoltaic assembly. After the adjacent photovoltaic modules are connected through the sealing elements at the edges, the adjacent photovoltaic modules can be reliably limited in the thickness direction, the dislocation is prevented, and the spliced photovoltaic modules are favorably fixed on the mounting support. Alternatively, the first sealing element 3 and the second sealing element 4 are designed to be L-shaped, and form a rectangular structure after being matched with each other, so that unidirectional limiting can be realized in the thickness direction of the photovoltaic module.

The mating surfaces of the first sealing member 3 and the second sealing member 4 may take various forms, such as a beveled surface, a cambered surface, or a stepped surface.

As shown in fig. 3, the end of the first seal member 3 is provided with an arc-shaped convex portion, the end of the second seal member 4 is provided with an arc-shaped concave portion, and an arc-shaped mating surface is formed between the two. Because the opening of the arc concave part has the trend of outward expansion, the arc convex part is guided when the arc concave part is matched and connected, and the requirement on positioning precision when the photovoltaic module is spliced can be reduced.

As shown in fig. 4, the end portion of the first sealing member 3 has a rectangular convex portion, which may be provided at a central position of the first sealing member 3 in the thickness direction of the photovoltaic module, and the end portion of the first sealing member 3 has a rectangular concave portion, which may be provided at a central position of the second sealing member 4 in the thickness direction of the photovoltaic module. The concave part and the convex part of the rectangle are matched to play a role in limiting each other, so that the positioning is more reliable, and the photovoltaic module is prevented from deflecting in the thickness direction after being spliced.

In some embodiments, the first sealing member 3 and the second sealing member 4 are not higher than a surface of the photovoltaic module perpendicular to the thickness direction in the fitted state. The structure can make the photovoltaic device more beautiful, and can also reduce the influence on the lighting effect caused by the convergence of water flow on the glass plate of the photovoltaic component.

As shown in fig. 3 and 4, the first sealing member 3 and the second sealing member 4 are flush with the surface of the photovoltaic module perpendicular to the thickness direction in the fitted state. The photovoltaic device forms an integral surface, is more attractive, can prevent water from being gathered in a connecting area between adjacent photovoltaic modules to cause the aging of the sealing element, and improves the use reliability of the photovoltaic modules.

Alternatively, the first sealing member 3 and the second sealing member 4 are lower than the surface of the photovoltaic module perpendicular to the thickness direction in the fitted state. The photovoltaic device forms a guide groove at the joint of adjacent photovoltaic modules, and drainage is facilitated.

In some embodiments, the first encapsulant 3 and the second encapsulant 4 are uniform in size along the thickness direction of the photovoltaic module. This kind of structure can make the intensity design of first sealing member 3 and second sealing member 4 comparatively balanced, avoids appearing the weak link to improve the monolithic integration reliability and life.

Further, as shown in fig. 3 and 4, the first sealing member 3 and the second sealing member 4 are each in conformity with the thickness dimension of the photovoltaic module. This structure can make full use of the space at the junction of adjacent photovoltaic modules to improve the structural strength of the first and second sealing members 3 and 4.

Alternatively, a concave-convex matching structure is arranged between the first sealing element 3 and the second sealing element 4, the concave structure completely surrounds the periphery of the convex structure, and the size of the convex structure in the thickness direction of the photovoltaic module is smaller than that of the concave structure in the thickness direction of the photovoltaic module.

The utility model discloses a photovoltaic device can adopt one of following three kinds of modes at least when the concatenation is installed:

1. sequentially mounting the rows of photovoltaic modules from the side part along a single direction, and enabling the adjacent photovoltaic modules to be embedded together;

2. because the sealing element is made of flexible materials, the sealing element can be directly deformed by applying pressure to the photovoltaic module on the sealing element so as to be embedded together;

3. when it is desired to add one photovoltaic module to the space between two photovoltaic modules, the added photovoltaic module can be inserted horizontally from the space between the two photovoltaic modules.

In addition to the above embodiments, the first sealing member 3 and the second sealing member 4 are coated with a sealant at the portions where they are fitted to each other. The sealant may be applied between the mating surfaces of the first sealing member 3 and the second sealing member 4 or may be applied at the outer joints of the mating surfaces. The sealant can be applied during or after splicing.

The embodiment can further improve the connection tightness between the adjacent photovoltaic modules on the basis of realizing the sealing connection through the structural matching; moreover, the reliability of connection of adjacent photovoltaic modules can be improved, and the subsequent integral arrangement on the mounting bracket is facilitated.

As shown in fig. 5, the photovoltaic device of the present invention further includes a fastening member 5, such as a screw, and a mounting hole is provided on the structure formed by the cooperation of the first sealing member 3 and the second sealing member 4, and the mounting hole can be arranged along the thickness direction of the photovoltaic module, so that the fastening member 5 passes through the mounting hole to fix the adjacent photovoltaic module on the mounting bracket of the photovoltaic device. The mounting hole can be preset on the sealing member, also can punch again after adjacent photovoltaic module concatenation finishes.

The number and the setting position of fasteners 5 can be set according to actual installation demand, and a plurality of fasteners 5 can be arranged at intervals along the length direction at the connecting position of adjacent photovoltaic modules. The height of the first and second seals 3, 4 projecting out of the photovoltaic module can be determined according to the dimensions of the fastener 5, in the case of screws, it is necessary to have the screw heads within the confines of the seals. The length of the fastener 5 exceeds the thickness of the photovoltaic module so that the mounting bracket of the photovoltaic module can be reliably connected.

The embodiment can fully utilize the connecting space of the adjacent photovoltaic modules to set the installation interface, does not need additional occupied space, can strengthen the sealing connection performance, and can not influence the daylighting area of the photovoltaic modules. Therefore, the utility model discloses a photovoltaic device can simplify the installation procedure, can realize good sealing performance again.

Further, the photovoltaic module further comprises a gasket 6, and the gasket 6 is arranged between the structure formed by the fastener 5 and the first sealing element 3 and the second sealing element 4 in a matched mode. In practice, a circular or rectangular gasket 6 can be additionally arranged according to the wind resistance requirement of the photovoltaic device, and the stressed area of the fastener 5 is expanded to improve the compaction degree, so that the sealing effect is improved.

Secondly, the utility model also provides a photovoltaic device, in an exemplary embodiment, include: a single photovoltaic module and a first encapsulant 3 and/or a second encapsulant 4. Wherein the first sealing member 3 and/or the second sealing member 4 are provided at the edge of the individual photovoltaic module for sealing the photovoltaic module. Wherein the first sealing member 3 is used for realizing sealing connection with the second sealing member 4 at the edge of other photovoltaic modules through shape matching, and the second sealing member 4 is used for realizing sealing connection with the first sealing member 3 at the edge of other photovoltaic modules through shape matching.

This embodiment includes the following three cases:

1. only the first sealing member 3 is provided at the edge of a part of the photovoltaic module, and only the second sealing member 4 is provided at the edge of a part of the photovoltaic module. When splicing a plurality of photovoltaic modules into the whole photovoltaic device in an array mode, matching is needed, and the adjacent photovoltaic modules are matched through the first sealing element 3 and the second sealing element 4 to realize sealing connection.

2. The edges of the individual photovoltaic modules are provided with both a first 3 and a second 4 sealing member, for example, at opposite edges with a first 3 and a second 4 sealing member, respectively. When splicing a plurality of photovoltaic modules into the whole photovoltaic device in an array mode, only adjacent photovoltaic modules need to be connected according to a proper direction, so that the adjacent photovoltaic modules are matched through the first sealing element 3 and the second sealing element 4 to realize sealing connection. The mode can improve the universality of a single photovoltaic module, and the selection link is reduced during splicing installation.

In the production process of the photovoltaic module, a mold is designed according to the shape of the sealing element and the position of the mounting hole of the fastener 5, and liquid sealant is injected into the mold to form a wrapping edge with an embedding and sealing function. For example, EVA sealants are used.

When laying the photovoltaic module on the roof of the building, the mounting bracket is designed according to the size of the photovoltaic module, and the photovoltaic module is laid on the mounting bracket.

It is right above the utility model provides a photovoltaic device has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A photovoltaic device, comprising:

a plurality of photovoltaic modules; and

the first sealing element (3) and the second sealing element (4) are respectively arranged at the mutually connected parts on the adjacent photovoltaic modules and used for sealing the photovoltaic modules, and the first sealing element (3) and the second sealing element (4) are configured to realize the sealing connection between the adjacent photovoltaic modules through shape matching.

2. Photovoltaic device according to claim 1, characterized in that a male-female fit is provided between the first (3) and second (4) sealing members to achieve mutual engagement.

3. The photovoltaic device of claim 2, wherein the male and female mating structures are configured to achieve bi-directional restraint in a thickness direction of the photovoltaic module.

4. The photovoltaic device of claim 2,

the end part of the first sealing element (3) is only provided with a convex structure, and the end part of the second sealing element (4) is only provided with a concave structure; or,

the end parts of the first sealing element (3) and the second sealing element (4) are both provided with a concave structure and a convex structure.

5. Photovoltaic device according to claim 1, characterized in that the mating surfaces of the first sealing element (3) and the second sealing element (4) are inclined, cambered or stepped surfaces.

6. Photovoltaic device according to claim 1, characterized in that the first (3) and second (4) seals are, in the fitted state, not higher than the surface of the photovoltaic module perpendicular to the thickness direction.

7. Photovoltaic device according to claim 1, characterized in that said first seal (3) and said second seal (4) have a uniform size along the thickness direction of said photovoltaic module.

8. Photovoltaic device according to claim 7, characterized in that said first seal (3) and said second seal (4) are each conformed to the thickness dimension of said photovoltaic module.

9. The photovoltaic device according to claim 1, characterized in that said first sealing member (3) and said second sealing member (4) are coated with a sealant at the portions where they are fitted to each other.

10. The photovoltaic device according to claim 1, further comprising a fastener (5), wherein the first sealing member (3) and the second sealing member (4) are cooperatively formed to have a mounting hole on a structure, and the fastener (5) is used for passing through the mounting hole to fix the adjacent photovoltaic module on a mounting bracket of the photovoltaic device.

11. The photovoltaic device according to claim 10, further comprising a gasket (6), the gasket (6) being provided between the structure formed by the fastener (5) cooperating with the first and second sealing members (3, 4).

12. A photovoltaic device, comprising:

a single photovoltaic module; and

the photovoltaic module sealing structure comprises a first sealing element (3) and/or a second sealing element (4), wherein the first sealing element (3) and/or the second sealing element (4) are arranged at the edge of the photovoltaic module and used for sealing the photovoltaic module, the first sealing element (3) is used for realizing sealing connection with the second sealing element (4) at the edge of other photovoltaic modules through shape matching, and the second sealing element (4) is used for realizing sealing connection with the first sealing element (3) at the edge of other photovoltaic modules through shape matching.