CN214672641U

CN214672641U - Glass plate and solar module

Info

Publication number: CN214672641U
Application number: CN202120842835.7U
Authority: CN
Inventors: 袁志林; 刘亚锋; 刘宝信
Original assignee: Risen Energy Co Ltd
Current assignee: Dongfang Risheng Ningbo New Energy Co ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2021-11-09
Anticipated expiration: 2031-04-22

Abstract

The embodiment of the application provides a glass plate and a solar module, and relates to the technical field of solar energy. The main body part of the glass plate is a flat plate and is provided with a first surface and a second surface which are opposite, and at least four corners of the edge of the first surface of the glass plate are raised relative to the main body part to form a raised part. The solar module comprises a battery piece, a packaging adhesive film and two glass plates, wherein the two glass plates are arranged oppositely, the protruding parts of the two glass plates are in one-to-one correspondence, the corresponding protruding parts are protruding relative to the two sides of the main body part, the battery piece is stacked between the two glass plates, the packaging adhesive film is located between the two glass plates, and the packaging adhesive film is wrapped outside the battery piece. Glass board and solar energy component have better explosion-proof effect, and can not show increase cost and weight.

Description

Glass plate and solar module

Technical Field

The application relates to the technical field of solar energy, in particular to a glass plate and a solar assembly.

Background

Photovoltaic power generation receives high attention as a novel clean energy acquisition mode, and photovoltaic power generation application scenes from deserts, mountainous regions to fishing light complementation, photovoltaic agriculture, photovoltaic animal husbandry and even entering families.

Photovoltaic module's packaging structure mostly adopts single-layer glass and polyester backplate that the lamination is in the same place, perhaps double glazing, and this packaging structure has certain safe risk owing to adopted fragile glass, and the phenomenon that explodes the board takes place occasionally under the circumstances such as the nonstandard operation in the installation moreover, violence installation.

In order to improve the overall strength of the photovoltaic module, some photovoltaic modules adopt glass laminated adhesive, and the thickness of the adhesive layer is increased so as to realize explosion-proof treatment, so that the cost of the photovoltaic module is increased, and the weight of the photovoltaic module is greatly increased; still some photovoltaic module increase glass isotayer structure, this photovoltaic module also faces the problem of cost and weight increase, does not accord with the development demand of photovoltaic trade.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a glass board and solar energy component, has better explosion-proof effect, and can not show increase cost and weight.

In a first aspect, an embodiment of the present application provides a glass plate for encapsulating a battery piece, where a main body of the glass plate is a flat plate and has a first surface and a second surface opposite to the first surface, and at least four corners of an edge of the first surface of the glass plate protrude relative to the main body to form a protruding portion.

In the above-mentioned realization process, when the glass board encapsulates the battery piece, two glass boards set up relatively, and corresponding bellying is protruding for the both sides of main part, makes the bellying of two glass boards whole bigger for the holistic thickness of main part, and this kind of design through increasing the whole local thickness of glass board can reach better explosion-proof effect, and can not show incremental cost and weight.

In one possible implementation manner, the second surface of the glass plate is recessed relative to the main body part corresponding to the position of at least part of the convex part to form a recessed space.

In the implementation process, the hollow cavities are butted to form the hollow cavity, the hollow cavity can form the explosion-proof structure after being filled, and the explosion-proof structure is only arranged at the edge of the glass plate, so that the whole thickness of the explosion-proof structure formed by the two glass plates is larger than that of the main body part, and the explosion-proof effect is achieved.

In one possible implementation, the thickness of the main body part is 1.2mm-4.0mm, and the thickness of the bulge part is 1.2mm-6.0 mm;

and/or the length of the glass plate is 1200mm-2500mm, and the width of the glass plate is 1200mm-2500 mm.

In one possible implementation, the bosses of the glass plate are located at the four corners, respectively.

In the implementation process, the four corners of the two glass plates are subjected to special-shaped structural design, so that the four corners of the formed solar assembly have explosion-proof structures, and the risk of fragments is reduced.

In one possible implementation, the boss of each corner is rectangular or circular with respect to the plane of the glass sheet.

In the implementation process, the rectangular convex part can ensure that the overall shape of the glass plate is slightly changed; the round bulge part ensures that the stress is small when the bump occurs and the bump is not easy to break.

In one possible implementation, the raised portion has a metal layer built in.

In the implementation process, the strength of the protruding part is increased by additionally arranging the metal layer, so that the overall strength of the explosion-proof structure is increased, and the explosion-proof effect is good.

In one possible implementation, the metal layer is a metal mesh.

In the implementation process, the metal mesh is easy to place in the glass plate, can be tightly combined with the glass plate into a whole, and can increase the strength of the protruding part.

In one possible implementation, the protrusions are continuously arched in the thickness direction of the glass sheet, and the number of the arches is 1-10.

In the above-mentioned realization process, the cavity that continuous cavity is constituteed can be formed in the continuous arch butt joint of two glass boards, and this kind of mellow and full border is difficult to the breakage when can guaranteeing to bump, when adopting the glued membrane to bond two glass boards in addition, can fully fill each cavity in proper order after the glued membrane melting that lies in between two glass board main parts, guarantees bonding effect.

In a second aspect, the embodiment of the application provides a solar module, which comprises a battery piece, a packaging adhesive film and two glass plates, wherein the two glass plates are arranged oppositely, the two glass plates are in one-to-one correspondence with the protrusions of the two glass plates, the corresponding protrusions are protruded on two sides of the main body part, the battery piece is stacked between the two glass plates, and the packaging adhesive film is positioned between the two glass plates and wraps the outside of the battery piece.

In the implementation process, the packaging adhesive film is wrapped outside the battery piece, so that the battery piece is packaged; the packaging adhesive film is positioned between the two layers of glass plates, so that the two glass plates and the battery piece are bonded together to form the solar module, and the special-shaped design of the outermost glass plate ensures that the solar module has a better explosion-proof effect and cannot obviously increase the cost and the weight.

In a possible implementation manner, the second surface of each glass plate is recessed relative to the main body part at a position corresponding to at least part of the protruding part to form a recessed space, the two glass plates are arranged oppositely, the recessed spaces are in one-to-one correspondence and are butted to form a cavity, and the packaging adhesive film is filled into the cavity.

In the implementation process, the matching design of the convex part and the concave space can increase the local thickness of the solar module while the weight of the glass layer is not increased, the cavity can form an explosion-proof structure after being filled, and the packaging adhesive film can increase the strength of the cavity part.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a dual glass assembly according to a first embodiment of the present application;

FIG. 2 is a schematic structural view of another perspective of a dual glass assembly according to the first embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a solar module according to a second embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a dual glass assembly according to a third embodiment of the present application;

FIG. 5 is a schematic view of another perspective structure of a dual glass assembly according to a third embodiment of the present application;

fig. 6 is a schematic structural diagram of a solar module according to a fourth embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a solar module according to a fifth embodiment of the present application;

fig. 8 is a schematic structural view of a dual glass assembly according to a sixth embodiment of the present application.

Icon: 100-a dual glass assembly; 110-a glass plate; 111-a body portion; 112-a boss; 120-a metal layer; 200-a solar module; 210-a cell sheet; 220-packaging adhesive film; 300-a dual glass assembly; 310-a glass plate; 311-a body portion; 312-a boss; 320-a metal layer; 400-a solar module; 410-a battery piece; 420-packaging adhesive film; 500-a solar module; 510-a battery piece; 520-packaging adhesive film; 530-a glass plate; 531-a main body portion; 532-a boss; 600-a dual glass assembly; 610-a glass plate; 611-a body portion; 612-a boss.

Detailed Description

The inventor is to exploding the board phenomenon analysis in the solar energy component installation, finds that most explodes the board phenomenon and takes place in the four corners of subassembly, also is the four corners of glass, because these places take place to collide with relatively easily.

Aiming at the phenomena, the technical scheme develops novel special-shaped explosion-proof glass and utilizes the glass to develop a double-glass assembly with an explosion-proof effect.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally found in use of products of the application, and are used only for convenience in describing the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

First embodiment

Referring to fig. 1 and fig. 2, the present embodiment provides a glass plate 110 and a dual glass assembly 100 composed of two glass plates 110, which is used for encapsulating a battery cell, wherein the dual glass assembly 100 mainly comprises two matched glass plates 110: a first glass plate 110 and a second glass plate 110.

From the individual glass sheets 110, each glass sheet 110 is generally rectangular in shape, with the glass sheets 110 generally having a length of 1200mm to 2500mm and a width of 1200mm to 2500 mm. To increase the explosion-proof effect, the glass plate 110 may be made of explosion-proof glass.

Each glass plate 110 has a first surface and a second surface opposite to each other, each glass plate 110 can be divided into a main body portion 111 and a convex portion 112, the main body portion 111 is a flat plate, and at least four corners of an edge of the first surface of each glass plate 110 are convex in the same direction relative to the main body portion 111 to form the convex portion 112. In the embodiment of the present application, the main body portion 111 and the protruding portion 112 both refer to the solid body of the glass plate 110, the main body portion 111 and the protruding portion 112 are integrally formed, the main body portion 111 is located in the middle, and the protruding portion 112 is located around the main body portion 111.

It should be noted that, at least four corners of the edge of the first surface of the glass plate 110 have the protrusions 112, and the protrusions 112 are located at the edge and the four corners of the glass plate 110 (all the edges may be provided with the protrusions 112, or some of the edges may be provided with the protrusions 112; the protrusions 112 on the edges may be provided continuously with the protrusions 112 on the four corners, or may be provided at intervals), or the protrusions 112 are located only at the four corners. In this embodiment, the convex portions 112 of each glass plate 110 are respectively located at four corners of the first surface.

In order to reduce the weight of the glass plates 110 as much as possible, the second surface of each glass plate 110 is recessed with respect to the main body 111 to form a recessed space corresponding to the position of at least part of the convex portion 112. In this embodiment, the concave spaces of each glass plate 110 are respectively located at four corners of the second surface, i.e. the thickness of the protruding portion 112 is not much different from the thickness of the main body portion 111. In general, the thickness of the main body portion 111 is smaller than or equal to the thickness of the protrusion portion 112, and the thickness in the embodiment of the present application refers to an average thickness. The body portion 111 is typically 1.2mm to 4.0mm thick, such as 1.2mm, 1.5mm, 1.7mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm or 4.0mm thick, and the protrusion 112 is typically 1.2mm to 6.0mm thick, such as 1.2mm, 1.5mm, 1.7mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm or 6.0mm thick.

The protrusion 112 protrudes from the main body 111, that is, the protrusion 112 corresponds to the main body 111 of the flat plate and has a special-shaped structure: the convex portion 112 at each corner is rectangular or circular with respect to the plane of the glass plate 110 (the main body portion 111 of the glass plate 110), and is rectangular in this embodiment, when viewed in a plan view in the thickness direction. The edge of the protruding portion 112 may be flush with the edge of the main body portion 111, the edge of the protruding portion 112 may also protrude relative to the edge of the main body portion 111, and the edge of the protruding portion 112 of the present embodiment protrudes relative to the edge of the main body portion 111. The cross section of the convex portion 112 in the thickness direction of the glass sheet 110 is a continuous arch (i.e., a wave shape) as viewed in the cross section in the thickness direction, and illustratively, the number of arches is 1 to 10, and in the present embodiment, the number of arches is 5.

In order to increase the strength of the convex portion 112, the convex portion 112 is provided with the metal layer 120, and in the present embodiment, the convex portions 112 at the four corners of each glass plate 110 are provided with the metal layer 120. Optionally, the metal layer 120 is a metal mesh, and as an embodiment, the metal layer 120 is a wire mesh, and a mesh structure made of other metal materials may also be used. Carry out heterotypic structural design to four angles of glass board 110 to add the wire netting in glass, make holistic bight structural strength bigger, play explosion-proof effect. The special-shaped structure of the glass plate 110 in the embodiment of the present application may be formed by rolling, and the metal layer 120 may be first placed and then rolled into the protruding portion 112.

When viewed from the overall dual glass assembly 100, the two glass plates 110 are mated with each other, and the "mated" means that the following requirements are satisfied: after the two glass plates 110 are configured to be oppositely arranged, the protruding portions 112 of the two glass plates 110 correspond to each other one by one, the corresponding protruding portions 112 protrude from two sides of the main body portion 111, and the recessed spaces correspond to each other one by one and are in butt joint to form a cavity. Specifically, when the first glass plate 110 and the second glass plate 110 are disposed oppositely, the second surface of the first glass plate 110 having the concave space and the second surface of the second glass plate 110 having the concave space are adjacent and opposite to each other, and the convex portions 112 of the first glass plate 110 and the convex portions 112 of the second glass plate 110 are in one-to-one correspondence, that is, each concave space of the first glass plate 110 is disposed opposite to one concave space of the second glass plate 110, the concave spaces can be butted one to form a cavity formed by continuous chambers, and the edges of the corresponding convex portions 112 can be butted together. The continuous chambers are formed by the continuous arched opposite arrangement of the convex parts 112, optionally, the number of the chambers is 1-10, and the continuous chambers can be used for filling more adhesive films, so that the effect of buffering the impact is achieved.

The two glass plates 110 adopted in the embodiment of the present application may be completely the same (the main body portion 111 and the protruding portion 112 are both the same), or may be different, and the embodiment of the present application is not limited, and only the two glass plates 110 need to meet the above-mentioned requirement of being matched with each other.

Second embodiment

Referring to fig. 3, the solar module 200 of the present embodiment includes a battery sheet 210, a packaging adhesive film 220 and the dual-glass assembly 100 of the first embodiment, the two glass plates 110 are disposed opposite to each other, the battery sheet 210 is stacked between the two glass plates 110, the packaging adhesive film 220 is disposed between the two glass plates 110 and wraps the battery sheet 210, the packaging adhesive film 220 overflows into the cavity through melting and fills the cavity, the packaging adhesive film 220 in the cavity and the corresponding protruding portion 112 form an explosion-proof structure, and the explosion-proof structure protrudes to two sides relative to the main body portion 111 in the middle. Generally, the packaging adhesive film 220 is formed by fusing and connecting two packaging adhesive layers on two sides of the battery piece 210 into a whole, so as to ensure that the battery piece 210 is fully packaged, the two packaging adhesive layers are stacked and located between the two glass plates 110, and the fusing of the packaging adhesive layers can sequentially and fully fill each cavity of the cavity, so as to ensure the bonding effect. The sealant film 220 is melted and flowed at a certain temperature, and is capable of adhering to the glass plate 110, such as ethylene-vinyl acetate (EVA).

Specifically, the solar module 200 is formed by laminating and bonding a first glass plate 110 (front plate), a first packaging adhesive layer (EVA), a cell sheet 210, a second packaging adhesive layer (EVA) and a second glass plate 110 (back plate) from top to bottom at 150 ℃ to form the whole solar module 200, wherein the front plate and the back plate are butted together to form a large cavity, and the protruding portions 112 of the front plate and the back plate are in one-to-one correspondence, and the recessed spaces are in one-to-one correspondence to form a cavity. The melted first and second encapsulant layers overflow to form an encapsulant film 220, which is filled to the edge of the glass plate 110, especially to the cavities at the four corners. The "butt joint" in the embodiment of the present application is not limited to complete butt joint of the edges of the glass plates 110, and may also be a case where the encapsulant film 220 overflows to between the edges of the glass plates 110, or even overflows, in this embodiment, the encapsulant film 220 fills all the cavities and overflows to between the edges of the glass plates 110.

The solar module 200 adopts a double-glass structure design of a front plate and a back plate, and has better aging resistance; and this solar energy component 200 has explosion-proof structure, and is explosion-proof effectual, reduces the risk that dual glass assembly explodes the board, mainly embodies:

by designing the four corners of the glass plate 110 with the special-shaped structures, that is, the protrusion part 112 protrudes relative to the main body part 111, the local thickness of the whole solar module 200 at the four corners is increased, so that the corner explosion-proof risk is achieved.

Through carrying out sunken space design to four angles of glass sheet 110, dock the vacuole formation after setting up relatively, can guarantee that more encapsulation glued membranes 220 fill this region, form explosion-proof construction, reach the effect of collision buffering, reduce the risk of bursting.

Third embodiment

Referring to fig. 4 and 5, the structure of a glass plate 310 and a dual glass assembly 300 composed of two glass plates 310 provided in this embodiment is substantially the same as that of the first embodiment, except that: the convex part 312 of each corner of the glass plate 310 is circular relative to the main body part 311 of the glass plate 310, and when viewed in a section along the thickness direction, the convex part 312 is linear along the glass plate 310, is different from a wave shape, but the edge is also rounded so as to reduce the occurrence of the fracture caused by stress concentration during collision; the boss 312 has a metal layer 320 also having a circular shape built therein.

Fourth embodiment

Referring to fig. 6, a solar module 400 provided in this embodiment is formed by using the dual glass assembly 300 of the third embodiment, and the structure of the solar module is substantially the same as that of the second embodiment, and includes a battery piece 410, an encapsulation adhesive film 420 and the dual glass assembly 300 provided in the third embodiment, the two glass plates 310 of the dual glass assembly 300 are disposed oppositely, the battery piece 410 is stacked between the two glass plates 310, the encapsulation adhesive film 420 is disposed between the two glass plates 310 and wraps the outside of the battery piece 410, and the difference is that: the butted bosses 312 of the glass plates 310 are butted to form a cubic cavity, and the encapsulant film 420 fills the entire cavity and overflows between the edges of the glass plates 310.

Fifth embodiment

Referring to fig. 7, the structure of a solar module 500 provided in this embodiment is substantially the same as that of the second embodiment, and includes a battery piece 510, an encapsulant film 520, and two glass plates 530 disposed oppositely, where the glass plates 530 are divided into a main body portion 531 and a protruding portion 532, the battery piece 510 is stacked between the two glass plates 530, the encapsulant film 520 is disposed between the two glass plates 530 and wraps the outside of the battery piece 510, and the difference is that: the edges of the glass plates 530 including the bosses 532 are completely butted together to form a sealed large chamber, and the packaging adhesive film 520 fills the entire large chamber without overflowing.

Sixth embodiment

Referring to fig. 8, the present embodiment provides a dual glass assembly 600, which has substantially the same structure as the first embodiment, except that: the second surface of each glass plate 610 may be a plane, that is, the second surface is not provided with a concave space and is not provided with a metal layer, and the two glass plates 610 are mutually matched, "mutually matched" means that the following requirements are satisfied: after the two glass plates 610 are configured to be oppositely arranged, the protruding portions 612 of the two glass plates 610 correspond to each other one by one, and the corresponding protruding portions 612 protrude from two sides of the main body portion 611, so that the explosion-proof effect can still be achieved.

To sum up, glass board and solar energy component of this application embodiment have better explosion-proof effect, and can not show incremental cost and weight.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The glass plate is used for packaging a battery piece and is characterized in that a main body part of the glass plate is a flat plate and is provided with a first surface and a second surface which are opposite, and at least four corners of the edge of the first surface of the glass plate are raised relative to the main body part to form a raised part.

2. The glass sheet of claim 1, wherein the second surface of the glass sheet is recessed relative to the body portion to form a recessed space corresponding to the position of at least some of the raised portions.

3. The glass sheet according to claim 1, wherein the body portion has a thickness of 1.2mm to 4.0mm and the boss portion has a thickness of 1.2mm to 6.0 mm;

4. Glass sheet according to claim 1, characterized in that the raised parts of the glass sheet are located at four corners, respectively.

5. Glass sheet according to claim 4, characterized in that the raised portions of each corner are rectangular or circular with respect to the plane of the glass sheet.

6. Glass sheet according to claim 1, characterized in that the raised portion is built-in with a metal layer.

7. Glass sheet according to claim 6, characterized in that the metal layer is a metal mesh.

8. The glass sheet according to claim 1, wherein the convex portion has a continuous arch shape in a thickness direction of the glass sheet, and the number of the arch shapes is 1 to 10.

9. A solar module is characterized by comprising a battery piece, a packaging adhesive film and two glass plates according to any one of claims 1 to 8, wherein the two glass plates are oppositely arranged, the protruding parts of the two glass plates correspond to each other one by one, the corresponding protruding parts are protruding relative to two sides of the main body part, the battery piece is stacked between the two glass plates, and the packaging adhesive film is positioned between the two glass plates and wraps the outside of the battery piece.

10. The solar module according to claim 9, wherein the second surface of each glass plate is recessed relative to the main body portion at a position corresponding to at least a portion of the protrusion portion to form a recessed space, the recessed spaces of the two glass plates are in one-to-one correspondence and are butted to form a cavity, and the packaging adhesive film is filled into the cavity.