CN219811502U

CN219811502U - Solar panel

Info

Publication number: CN219811502U
Application number: CN202320401386.1U
Authority: CN
Inventors: 陈文辉; 汤杰虎; 陈熙; 王雷
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-10-10
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a solar panel which comprises a battery piece layer, a first protective layer, a first supporting layer and a second protective layer, wherein the first protective layer and the second protective layer are respectively arranged on two opposite sides of the battery piece layer, and the first supporting layer is arranged between the first protective layer and the battery piece layer. The first supporting layer comprises a hard slat and a reinforcing plate, the reinforcing plate is arranged on one surface of the battery piece layer, which is away from the second protective layer, the hard slat is arranged on one surface of the reinforcing plate, which is away from the battery piece layer, and the hard slat is arranged on the edge of the reinforcing plate, and the hardness of the reinforcing plate is smaller than that of the hard slat. The utility model can improve the integral anti-hidden-crack performance of the solar panel, has good supporting effect and can ensure that the solar panel is not easy to bend.

Description

Solar panel

Technical Field

The utility model relates to the technical field of solar power supply equipment, in particular to a solar panel.

Background

In order to ensure that the solar panel has certain bending resistance, the traditional solar panel adopts a hard substrate as a bearing substrate of the battery piece. However, such solar panels have poor spalling resistance of the rigid substrate and can add to the overall weight of the solar panel.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a solar panel that can improve the anti-spalling performance of the solar panel.

The embodiment of the utility model provides a solar panel, which comprises a battery piece layer, a first protective layer, a first supporting layer and a second protective layer, wherein the first protective layer and the second protective layer are respectively arranged on two opposite sides of the battery piece layer, and the first supporting layer is arranged between the first protective layer and the battery piece layer. The first supporting layer comprises a hard slat and a reinforcing plate, the reinforcing plate is arranged on one surface of the battery piece layer, which is away from the second protective layer, the hard slat is arranged on one surface of the reinforcing plate, which is away from the battery piece layer, and the hard slat is arranged on the edge of the reinforcing plate, and the hardness of the reinforcing plate is smaller than that of the hard slat.

On the one hand, the hardness of the reinforcing plate is smaller than that of the hard ribbon board, so that the integral hidden crack resistance of the solar panel can be improved; on the other hand, the effect that the hard slat can play the support at the edge of reinforcing plate can guarantee that solar panel is difficult for crooked, and compares in prior art adopts the hard substrate of a whole face, and the volume of hard slat is littleer, can lighten solar panel's whole weight.

In at least one embodiment, the solar panel further comprises a second support layer disposed between the second protective layer and the cell layer, the second support layer having a hardness less than the hardness of the rigid slat.

In the above embodiment, the hardness of the second supporting layer is smaller than that of the hard strip plate, so that the anti-hidden-crack performance of the solar panel can be improved as much as possible while the second supporting layer provides a supporting effect for the battery piece layer, and the solar panel is not easy to break due to overhigh material hardness.

In at least one embodiment, the reinforcing plate and the second support layer are both fiberglass composite films; and/or the hard ribbon is a fiberglass board or a metal board.

In the embodiment, the glass fiber composite film has the characteristics of light weight, high strength, aging resistance, good flame retardant property, insulation and the like, can not only provide supporting and protecting functions for the battery sheet layer, but also ensure that the weight of the solar panel is not excessively heavy. The glass fiber board has good dampproofing, heat-resisting performance, and the metal sheet has good supporting effect, can both effectively promote solar panel's performance.

In at least one embodiment, two rigid strips are provided, one at each of the opposite edges of the reinforcing plate.

In the above embodiment, the hard strips are disposed at two opposite edges of the reinforcing plate, so that the supporting effect can be further improved, and when the solar panel is irradiated by light, the cell layer can be irradiated by the light through the reinforcing plate from the position between the two hard strips, without penetrating the hard strips, so that the shielding of sunlight can be avoided as much as possible, and the cell layer is facilitated to absorb sunlight.

In at least one embodiment, both rigid strips extend along the length of the battery sheet.

In the above embodiment, the hard strip plate is disposed along the length direction of the battery sheet layer, so that the battery sheet layer is not easy to bend in the length direction, and the supporting effect is improved.

In at least one embodiment, the solar panel further comprises a first adhesive layer filled between the two rigid strips, the first protective layer being connected to the stiffener by the first adhesive layer.

In the above embodiment, the first adhesive layer can firmly connect the first protection layer with the reinforcing plate, and clamp the two hard strips between the first protection layer and the reinforcing plate, so as to improve the connection firmness of the two hard strips with the first protection layer and the reinforcing plate. In addition, the first bonding layer is filled between the two hard strips, so that gaps generated between the two hard strips can be made up, and the structural strength of the solar panel is improved.

In at least one embodiment, the first support layer further comprises a second adhesive layer, and the reinforcement panel is connected to the rigid slat by the second adhesive layer.

In the above embodiment, the reinforcing plate is connected with the hard slat through the second adhesive layer, so that the connection firmness of the reinforcing plate and the hard slat can be improved.

In at least one embodiment, the first protective layer comprises a light-transmitting plate and a third adhesive layer, the light-transmitting plate is arranged on one surface of the first supporting layer, which is away from the battery piece layer, and is connected with the hard ribbon board through the third adhesive layer, and one surface of the battery piece layer, which faces the light-transmitting plate, is configured to absorb sunlight.

In the above-mentioned embodiment, the light-transmitting plate not only can provide the guard action for the battery piece layer, and the light transmissivity is better moreover, and light can shine in the battery piece layer through the light-transmitting plate to guarantee the normal work of battery piece layer.

In at least one embodiment, the second protective layer includes a waterproof layer and a fourth adhesive layer, the waterproof layer being connected to the battery sheet layer by the fourth adhesive layer.

In the above embodiment, the waterproof layer is arranged, so that the water vapor can be effectively prevented from penetrating into the inner structure, and the solar panel is not easy to damage due to damp.

In at least one embodiment, the second protective layer further comprises an insulating layer and a fifth adhesive layer, the insulating layer is located on one surface of the waterproof layer, which is away from the battery sheet layer, and the insulating layer is connected with the waterproof layer through the fifth adhesive layer.

In the above embodiment, the arrangement of the insulating layer can reduce the occurrence of electric leakage of the battery sheet layer and improve the use safety of the solar panel.

Drawings

Fig. 1 is a schematic view of the overall structure of a solar panel according to an embodiment of the present utility model.

Fig. 2 is a schematic view of an exploded structure of a solar panel in one embodiment of the present utility model.

Description of the main reference signs

100. A solar panel; 11. A battery sheet layer; 12. A first protective layer;

121. a light-transmitting plate; 122. A third adhesive layer; 13. A first support layer;

131. a hard slat; 132. A reinforcing plate; 133. A second adhesive layer;

14. a second protective layer; 141. A waterproof layer; 142. A fourth adhesive layer;

143. an insulating layer; 144. A fifth adhesive layer; 15. A first adhesive layer;

16. and a second support layer.

The utility model will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

The following description of the technical solutions according to the embodiments of the present utility model will be given with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present utility model, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

It should be noted that, the dimensions of thickness, length, width, etc. of the various components and the dimensions of the overall thickness, length, width, etc. of the integrated device in the embodiments of the present utility model shown in the drawings are only illustrative, and should not be construed as limiting the present utility model.

In order to ensure that the solar panel has certain bending resistance, the conventional solar panel adopts a hard substrate as a bearing substrate of the battery piece, such as an aluminum alloy sheet, a stainless steel sheet or a copper alloy sheet. However, such solar panels have poor spalling resistance of the rigid substrate and can add to the overall weight of the solar panel.

In view of the above, an embodiment of the present utility model provides a solar panel, including a battery layer, a first protection layer, a first support layer and a second protection layer, wherein the first protection layer and the second protection layer are respectively disposed on opposite sides of the battery layer, and the first support layer is disposed between the first protection layer and the battery layer. The first supporting layer comprises a hard slat and a reinforcing plate, the reinforcing plate is arranged on one surface of the battery piece layer, which is away from the second protective layer, the hard slat is arranged on one surface of the reinforcing plate, which is away from the battery piece layer, and the hard slat is arranged on the edge of the reinforcing plate, and the hardness of the reinforcing plate is smaller than that of the hard slat.

Embodiments of the present utility model will be further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, an embodiment of the present utility model provides a solar panel 100, which includes a cell layer 11, a first protective layer 12, a first support layer 13, and a second protective layer 14. The first protective layer 12 and the second protective layer 14 are respectively disposed on two opposite sides of the battery layer 11, and the first supporting layer 13 is disposed between the first protective layer 12 and the battery layer 11.

The battery sheet 11 is used to convert light energy into electrical energy.

Referring to fig. 1 and 2, in one embodiment, the battery sheet layer 11 is formed by a plurality of battery sheets spliced together by internal wiring. The battery sheet 11 may be a single-sided battery sheet or a double-sided battery sheet.

In one embodiment, the first supporting layer 13 includes a hard slat 131 and a reinforcing plate 132, and the reinforcing plate 132 is disposed on a side of the battery sheet 11 facing away from the second protection layer 14. The hard strip 131 is disposed on a surface of the reinforcing plate 132 facing away from the battery layer 11, and the hard strip 131 is disposed on an edge of the reinforcing plate 132, and the hardness of the reinforcing plate 132 is smaller than that of the hard strip 131.

Setting the hardness of the reinforcing plate 132 to be smaller than that of the hard slat 131 can improve the anti-spalling performance of the solar panel 100 as a whole. The hard strip plate 131 is arranged at the edge of the reinforcing plate 132 to have a supporting effect, so that the cell layer 11 is not easy to bend.

In one embodiment, the rigid slat 131 is a fiberglass plate or a metal plate. The glass fiber board has good moisture-proof and heat-resistant properties, and the metal board can be an aluminum alloy sheet, a stainless steel sheet or a copper alloy sheet and other metal sheets, has good supporting effect, and can effectively improve the service performance of the solar panel 100.

Referring to fig. 2, in one embodiment, two rigid strips 131 are provided, and the two rigid strips 131 are respectively located at two opposite edges of the reinforcing plate 132. The supporting effect can be further improved through the two hard laths 131, the hard laths 131 are arranged at two opposite edges of the reinforcing plate 132, when the solar panel 100 is irradiated by light, the solar panel 11 can be irradiated by the reinforcing plate 132 from the position between the two hard laths 131 without penetrating the hard laths 131, so that the hard laths 131 can be prevented from shielding sunlight as much as possible, and the solar panel 11 is further facilitated to absorb sunlight.

In one embodiment, both of the rigid strips 131 extend along the length of the battery layer 11. The hard strip plates 131 are arranged along the length direction of the battery sheet layer 11, so that the battery sheet layer 11 is not easy to bend in the length direction, and the supporting effect is improved.

In one embodiment, the four hard strips 131 are arranged, and the four hard strips 131 are connected end to end in sequence, wherein two hard strips 131 extend along the length direction of the battery sheet 11, and the other two hard strips 131 are arranged along the width direction of the battery sheet 11. The arrangement of the four hard laths 131 makes the battery piece layer 11 less prone to bending in both the width direction and the length direction.

In an embodiment, the orthographic projection of the hard slat 131 in the thickness direction of the solar panel 100 falls outside the range of the cell layer 11, so as to avoid the hard slat 131 from shielding the sunlight, and thus facilitate the cell layer 11 to absorb the sunlight.

In one embodiment, the stiffener 132 is a fiberglass composite film. The glass fiber composite film is made of glass fiber reinforced composite material, is prepared from synthetic resin and glass fiber through a composite process, and has the characteristics of light weight, high strength, ageing resistance, good flame retardant property, insulation and the like. This not only provides support and protection for the cell layer 11, but also ensures that the solar panel 100 is not overly heavy.

Referring to fig. 2, in an embodiment, the solar panel 100 further includes a first adhesive layer 15, the first adhesive layer 15 is filled between two hard ribbon boards 131, and the first protective layer 12 is connected to the reinforcing board 132 through the first adhesive layer 15. The area of the first adhesive layer 15 is smaller than that of the reinforcing plate 132 so that the first adhesive layer 15 can be filled between the two hard laths 131.

The first adhesive layer 15 can firmly connect the first protective layer 12 and the reinforcing plate 132, and clamp the two hard strips 131 between the first protective layer 12 and the reinforcing plate 132, so as to improve the connection firmness of the two hard strips 131 and the first protective layer 12 and the reinforcing plate 132. In addition, the first adhesive layer 15 is filled between the two hard laths 131, and can compensate for a gap generated between the two hard laths 131, thereby improving the structural strength of the solar panel 100.

In one embodiment, the first adhesive layer 15 is an EVA (Polyethylene vinylacetate, polyethylene-polyvinyl acetate copolymer) adhesive film, which is a thermosetting adhesive film. The EVA film has good adhesion, durability and optical properties, and can firmly connect the first protective layer 12 with the reinforcing plate 132. In other embodiments, the first adhesive layer 15 may also be a POE (Polyolefin elastomer ) adhesive film.

Referring to fig. 2, in an embodiment, the first supporting layer 13 further includes a second adhesive layer 133, the reinforcing plate 132 is connected to the hard slat 131 through the second adhesive layer 133, and the second adhesive layer 133 is located between the reinforcing plate 132 and the hard slat 131. The reinforcing plate 132 is connected to the hard slat 131 through the second adhesive layer 133, and the connection between the reinforcing plate 132 and the hard slat 131 can be improved.

In one embodiment, the first adhesive layer 15 is located in the same plane as the rigid strip 131, and the side of the second adhesive layer 133 that is connected to the rigid strip 131 is also connected to the first adhesive layer 15.

In an embodiment, the second adhesive layer 133 may also be an EVA adhesive film or a POE adhesive film.

Referring to fig. 2, in an embodiment, the solar panel 100 further includes a second supporting layer 16, where the second supporting layer 16 is disposed between the second protective layer 14 and the cell layer 11, and the hardness of the second supporting layer 16 is less than that of the hard ribbon 131. This can improve the anti-spalling performance of the solar panel 100 as much as possible while ensuring that the second support layer 16 provides a supporting function for the battery sheet layer 11, so that the solar panel 100 is not easily broken due to the too high material hardness.

In one embodiment, the second support layer 16 is a fiberglass composite film. The second support layer 16 and the reinforcing plate 132 are respectively positioned on two opposite sides of the cell layer 11, so that bending resistance and hidden crack resistance of two sides of the solar panel 100 can be improved. In other embodiments, the second supporting layer 16 may be made of other materials having supporting function.

Referring to fig. 2, in an embodiment, the first protection layer 12 includes a light-transmitting plate 121 and a third adhesive layer 122, the light-transmitting plate 121 is disposed on a surface of the first supporting layer 13 facing away from the battery sheet layer 11, and is connected to the hard slat 131 through the third adhesive layer 122, and a surface of the battery sheet layer 11 facing the light-transmitting plate 121 is configured to absorb sunlight. The light-transmitting plate 121 not only can provide protection for the battery sheet 11, but also has better light transmittance, and light can irradiate on the battery sheet 11 through the light-transmitting plate 121 so as to ensure the normal operation of the battery sheet 11.

In an embodiment, the transparent plate 121 is made of a flexible material, so that the transparent plate 121 can be elastically bent and deformed, and the anti-spalling performance of the solar panel 100 is improved. For example, the light-transmitting plate 121 may be made of TPT (edge/PET/Tedlar), TPE (Thermoplastic elastomer ), or AL-PET, which is a composite film obtained by compounding a PET (Polyethylene terephthalate ) film with an aluminum foil by glue.

In an embodiment, the third adhesive layer 122 may be an EVA adhesive film or a POE adhesive film.

In one embodiment, the side of the third adhesive layer 122 facing away from the light-transmitting plate 121 is simultaneously connected to the first adhesive layer 15 and the rigid strip 131.

Referring to fig. 2, in one embodiment, the second protective layer 14 includes a waterproof layer 141 and a fourth adhesive layer 142, and the waterproof layer 141 is connected to the battery sheet layer 11 through the fourth adhesive layer 142. The waterproof layer 141 can effectively prevent water vapor from penetrating into the inner structure, so that the solar panel 100 is not easily damaged by moisture.

The waterproof layer 141 may be a PET layer, which can isolate water vapor and effectively prevent the water vapor from penetrating into the solar panel 100. The PET layer also has the properties of ultraviolet resistance and ageing resistance, is transparent, has good light transmittance and has the anti-cracking capability.

It will be appreciated that in other embodiments, the waterproof layer 141 may be an ETFE (Ethylene-tetrafluoroethylene copolymer) layer, or made of other materials having waterproof properties.

In an embodiment, the area of the fourth adhesive layer 142 is greater than the areas of the second support layer 16 and the battery sheet layer 11, and the middle portion of the surface of the fourth adhesive layer 142 facing away from the waterproof layer 141 is adhered to the second support layer 16, and the edge of the fourth adhesive layer 142 can be adhered to the edge of the reinforcing plate 132.

Referring to fig. 2, in an embodiment, the second protective layer 14 further includes an insulating layer 143 and a fifth adhesive layer 144, where the insulating layer 143 is located on a surface of the waterproof layer 141 facing away from the battery layer 11, and the insulating layer 143 is connected to the waterproof layer 141 through the fifth adhesive layer 144.

The insulating layer 143 may be an ETFE layer, which has excellent properties of aging resistance, ultraviolet resistance, water seepage resistance, high temperature and humidity resistance, fire resistance, insulation, and the like. In other embodiments, the insulating layer 143 may be a polyvinylidene fluoride layer (PVDF) or a chlorotrifluoroethylene resin layer (CTFE), or the like.

The insulating layer 143 can reduce the occurrence of leakage current in the battery layer 11 and improve the safety of the solar panel 100.

In an embodiment, the fourth adhesive layer 142 and the fifth adhesive layer 144 may be EVA adhesive film, POE adhesive film, or other materials with adhesive effect.

In summary, by the arrangement of the hard slat 131 and the reinforcing plate 132, not only the anti-spalling performance of the solar panel 100 as a whole can be improved, but also the supporting effect can be achieved, the solar panel 100 is not easy to bend, and the weight of the solar panel 100 is reduced as much as possible. The first protective layer 12 and the second protective layer 14 provide protection for the cell layer 11, so that the internal structure of the solar panel 100 is not damaged easily. And in the process of preparing the solar panel 100, each structural layer is paved in sequence and then laminated, and the whole structural process is simple and convenient to implement.

Further, other variations within the spirit of the present utility model will occur to those skilled in the art, and it is intended, of course, that such variations be included within the scope of the present utility model as disclosed herein.

Claims

1. The solar panel comprises a battery piece layer and is characterized by further comprising a first protective layer, a first supporting layer and a second protective layer, wherein the first protective layer and the second protective layer are respectively arranged on two opposite sides of the battery piece layer, and the first supporting layer is arranged between the first protective layer and the battery piece layer;

the first supporting layer comprises a hard slat and a reinforcing plate, the reinforcing plate is arranged on one surface of the battery piece layer, which is away from the second protective layer, the hard slat is arranged on one surface of the reinforcing plate, which is away from the battery piece layer, the hard slat is arranged on the edge of the reinforcing plate, and the hardness of the reinforcing plate is smaller than that of the hard slat.

2. The solar panel of claim 1, further comprising a second support layer disposed between the second protective layer and the cell sheet layer, the second support layer having a hardness less than the hardness of the rigid slat.

3. The solar panel of claim 2, wherein the reinforcing plate and the second support layer are both fiberglass composite films; and/or the number of the groups of groups,

the hard ribbon board is a glass fiber board or a metal board.

4. The solar panel of claim 1, wherein there are two of said rigid strips, one at each of opposite edges of said stiffener.

5. The solar panel of claim 4, wherein both of the rigid strips extend along the length of the cell layer.

6. The solar panel of claim 4, further comprising a first adhesive layer filled between two of the rigid strips, the first protective layer being connected to the stiffener by the first adhesive layer.

7. The solar panel of any one of claims 1 to 6, wherein the first support layer further comprises a second adhesive layer, the stiffener being connected to the rigid slat by the second adhesive layer.

8. The solar panel of any one of claims 1 to 6, wherein the first protective layer comprises a light-transmitting panel and a third adhesive layer, the light-transmitting panel being provided on a side of the first support layer facing away from the cell layer and being connected to the rigid slat by the third adhesive layer, the side of the cell layer facing the light-transmitting panel being configured for absorbing sunlight.

9. The solar panel according to any one of claims 1 to 6, wherein the second protective layer comprises a waterproof layer and a fourth adhesive layer, the waterproof layer being connected to the cell layer by the fourth adhesive layer.

10. The solar panel of claim 9, wherein the second protective layer further comprises an insulating layer and a fifth adhesive layer, the insulating layer being located on a side of the waterproof layer facing away from the cell layer, the insulating layer being connected to the waterproof layer by the fifth adhesive layer.