CN218957749U

CN218957749U - Flexible solar panel

Info

Publication number: CN218957749U
Application number: CN202223235426.4U
Authority: CN
Inventors: 罗伯特·林; 张砚仑
Original assignee: Taicang Shenlian Technology Co ltd
Current assignee: Taicang Shenlian Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-02
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a flexible solar panel which comprises a first flexible protective layer, a solar cell and a second flexible protective layer which are sequentially arranged, wherein the first flexible protective layer and the second flexible protective layer are coated on the surface of the solar cell in a lamination mode, the solar cell comprises a plurality of cell pieces which are respectively a first cell piece, a second cell piece and a plurality of third cell pieces which are sequentially connected in series between the first cell piece and the second cell piece, one ends of the first cell piece and the second cell piece, which deviate from the corresponding third cell pieces, are respectively electrically connected with a positive electrode piece and a negative electrode piece, and the positive electrode piece and the negative electrode piece are respectively extended to the outer sides of the first flexible protective layer and the second flexible protective layer. The utility model has simple and durable structure, is convenient for production, reduces cost, is convenient for customized production by increasing or decreasing the number of the third battery pieces to adjust the whole area, expands the application range, can bend the whole and reduces the requirement of the use environment.

Description

Flexible solar panel

Technical Field

The utility model relates to the technical field of new energy, in particular to a flexible solar panel.

Background

Solar energy is widely used as clean energy in various fields of national economy, and a solar panel is an indispensable part of solar power generation and generally consists of toughened glass, a battery and the like, wherein the glass has high light transmittance, high strength and other performances, is relatively low in price, is widely popularized, but has heavy quality, cannot be bent, has high requirements on use environments such as bearing capacity, placement area and the like, and limits popularization of solar energy utilization. Accordingly, improvements are needed.

Disclosure of Invention

The utility model aims to provide a flexible solar panel which overcomes the defects in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model discloses a flexible solar panel which comprises a first flexible protective layer, a solar cell and a second flexible protective layer which are sequentially arranged, wherein the first flexible protective layer and the second flexible protective layer are coated on the surface of the solar cell in a lamination mode, the solar cell comprises a plurality of cell pieces which are respectively a first cell piece, a second cell piece and a plurality of third cell pieces which are sequentially connected in series between the first cell piece and the second cell piece, one ends of the first cell piece and the second cell piece, which deviate from the corresponding third cell pieces, are respectively electrically connected with a positive electrode piece and a negative electrode piece, and the positive electrode piece and the negative electrode piece are respectively extended to the outer sides of the first flexible protective layer and the second flexible protective layer.

Further, in the above flexible solar panel, the first flexible protective layer and the second flexible protective layer are both made of transparent materials, and the transparent materials are polycarbonate.

Further, in the above flexible solar panel, hot melt adhesives are respectively arranged between the contact surfaces of the first flexible protective layer and the second flexible protective layer and the solar cell, and the hot melt adhesives are ethylene-vinyl acetate copolymers.

Further, in the above flexible solar panel, the opposite sides of the back of the battery piece are respectively provided with an anode bonding pad and a cathode bonding pad, and are provided with corresponding marks.

Further, in the above flexible solar panel, one ends of the positive electrode sheet and the negative electrode sheet, which are close to the battery sheet, are respectively protruded with first soldering feet corresponding to the corresponding positive electrode pad and the corresponding negative electrode pad, and are fixed to the corresponding positive electrode pad and the corresponding negative electrode pad by laser welding.

Further, in the flexible solar panel, the battery pieces are arranged in a rectangular array, the battery pieces arranged in the same row are electrically connected through the first connecting strip, and the third battery pieces at the inner ends of two adjacent rows are electrically connected through the second connecting strip.

Further, in the flexible solar panel, the positive plate, the negative plate, the first connecting strip and the second connecting strip are formed by integrally forming aluminum foils.

Further, in the above flexible solar panel, the two sides of the first connection strip are respectively protruded with the second soldering feet corresponding to the corresponding positive electrode pad and the corresponding negative electrode pad, and are fixed to the corresponding positive electrode pad and the corresponding negative electrode pad by laser welding.

Further, in the above flexible solar panel, one end of the second connecting strip, which is close to the third battery piece, protrudes to form third welding pins corresponding to the corresponding positive electrode welding plate and the corresponding negative electrode welding plate respectively, and is fixed to the corresponding positive electrode welding plate and the corresponding negative electrode welding plate through laser welding.

Compared with the prior art, the utility model has the advantages that: the utility model is simple, convenient for production, reduces cost, has lighter overall weight, has no requirement on the bearing of the use environment, is convenient for customized production by increasing or decreasing the number of the third battery pieces to adjust the overall area, and expands the application range by matching with the bendable characteristic.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

Fig. 1 is a schematic cross-sectional view of a flexible solar panel according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a positive electrode sheet according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a solar cell according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a solar cell according to another embodiment of the utility model.

Fig. 5 is a schematic structural diagram of a solar cell according to another embodiment of the utility model.

Fig. 6 is a schematic structural diagram of a solar cell according to another embodiment of the utility model.

Fig. 7 is a schematic structural diagram of a first connecting strip according to an embodiment of the utility model.

Fig. 8 is a schematic structural diagram of a second connecting strip according to an embodiment of the utility model.

Detailed Description

The following detailed 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, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 will be understood in specific cases by those of ordinary skill in the art.

In an embodiment, referring to fig. 1 to 8, a flexible solar panel includes a first flexible protection layer 1, a solar cell 2 and a second flexible protection layer 3 that are sequentially disposed, where the first flexible protection layer 1 and the second flexible protection layer 3 are wrapped on the surface of the solar cell 2 in a laminating manner, the solar cell 2 includes a plurality of battery pieces, respectively, a first battery piece 21, a second battery piece 22 and a plurality of third battery pieces 23 sequentially connected in series between the first battery piece 21 and the second battery piece 22, where one ends of the first battery piece 21 and the second battery piece 22, which deviate from the corresponding third battery piece 23, are electrically connected with a positive electrode piece 24 and a negative electrode piece 25, and the positive electrode piece 24 and the negative electrode piece 25 all extend to the outer sides of the first flexible protection layer 1 and the second flexible protection layer 3.

In the technical scheme, the structural parameters of the battery piece, the power generation principle and the like belong to the prior art, and are not repeated herein, the battery piece can directly outsource the existing product, the first flexible protection layer and the second flexible protection layer are coated on the surface of the solar battery and are used for protecting the solar battery from damage caused by external force, the positive plate and the negative plate are completely identical in structure, the positive plate and the negative plate are connected to an external energy storage device or an external power utilization device according to the positive and negative determined positions of the battery piece, and the electric energy converted by the solar battery is output.

In an embodiment, the first flexible protective layer 1 and the second flexible protective layer 3 are both made of polycarbonate.

In the technical scheme, the first flexible protective layer and the second flexible protective layer can not block sunlight irradiation while protecting the solar cell, and the Polycarbonate, also called PC (Polycarbonate for short) plastic, has flame retardance and higher mechanical strength, can effectively improve the integral strength, and is applied to the open air for a long time.

In one embodiment, as shown in fig. 1, EV hot melt adhesives 4 are respectively disposed between contact surfaces of the first and second flexible protective layers 1 and 3 and the solar cell 2.

In the technical scheme, EVA (Ethylene Viny Acetate) is abbreviated as ethylene-vinyl acetate copolymer, is prepared by copolymerizing ethylene (E) and Vinyl Acetate (VA), can be subjected to solidification reaction while heating and melting, is formed by cutting a first flexible protective layer, a second flexible protective layer and EV hot melt adhesive before lamination, and is stacked in sequence of the first flexible protective layer, EV hot melt adhesive, solar cell, EV hot melt adhesive and the second flexible protective layer and vacuum hot pressed, so that the corresponding flexible solar cell panel can be prepared.

In an embodiment, the opposite sides of the back of the battery piece are respectively provided with a positive electrode bonding pad and a negative electrode bonding pad, and are provided with corresponding marks.

In the technical scheme, the battery piece with the positive electrode bonding pad and the negative electrode bonding pad is selected for convenient welding processing, and the positive electrode bonding pad and the negative electrode bonding pad are respectively marked with "+" and "-", so that rapid distinguishing is convenient.

In one embodiment, referring to fig. 2, the ends of the positive electrode tab 24 and the negative electrode tab 25, which are adjacent to the battery tab, are respectively protruded with first fillets 241 corresponding to the corresponding positive electrode pad and negative electrode pad, and are fixed to the corresponding positive electrode pad and negative electrode pad by laser welding.

In the technical scheme, the positive electrode plate and the negative electrode plate are fixed on the corresponding positive electrode bonding pad and the corresponding negative electrode bonding pad through the first welding leg laser welding of the positive electrode plate and the negative electrode plate, and the connection with the corresponding battery plate is realized, so that the electric energy converted by the solar battery is output.

In one embodiment, referring to fig. 3, the battery plates are arranged in a single row, and the adjacent battery plates are electrically connected by a first connecting strip 26.

In the technical scheme, the battery pieces at two ends are a first battery piece and a second battery piece respectively, and the whole flexible solar panel is of a strip-shaped structure.

In another embodiment, the battery pieces are arranged in two rows, and the third battery pieces 23 at the end are electrically connected through the second connecting strip 27.

In the technical scheme, the first battery piece and the second battery piece are positioned at the same end, and the two third battery pieces at the other end are electrically connected through the second connecting strip.

In yet another embodiment, the cells are arranged in three rows.

In the technical scheme, the first battery piece and the second battery piece are positioned at different ends of two sides, and the two third battery pieces at the same end are still electrically connected through the second connecting strip.

In yet another embodiment, the cells are arranged in four rows.

In this technical scheme, first battery piece and second battery piece are in the both sides of same one end, still through second connecting strip electric connection between two third battery pieces of same one end, battery piece accessible different combination modes, satisfy the demand of customization.

In one embodiment, referring to fig. 7 and 8, the positive electrode tab 24, the negative electrode tab 25, the first connecting bar 26 and the second connecting bar 27 are all integrally formed of aluminum foil.

In this technical scheme, the aluminium foil cost is lower, and convenient processing, positive pole piece, negative pole piece, first connecting strip and second connecting strip all directly cut into shape, avoid self concatenation, welding etc. guarantee intensity.

In one embodiment, referring to fig. 7, both sides of the first connection bar 26 are respectively protruded with second bonding feet 261 corresponding to the corresponding positive and negative electrode pads, and are fixed to the corresponding positive and negative electrode pads by laser welding.

In the technical scheme, the first connecting strip is fixed on the corresponding positive electrode bonding pad and negative electrode bonding pad through the second welding leg of the first connecting strip by laser welding, so that the series connection of adjacent battery pieces is realized.

In one embodiment, as shown in fig. 8, one end of the second connection bar 27 near the third battery piece 23 is protruded with third fillets 271 corresponding to the corresponding positive and negative electrode pads, respectively, and is fixed to the corresponding positive and negative electrode pads by laser welding.

In the technical scheme, the second connecting strip is fixed on the corresponding positive electrode bonding pad and negative electrode bonding pad through the third welding leg of the second connecting strip by laser welding, and the battery pieces between adjacent columns are connected in series.

In summary, the utility model is simple, convenient for production, reduces cost, has lighter overall weight, has no requirement on the bearing of the use environment, is convenient for customized production by increasing or decreasing the number of the third battery pieces to adjust the overall area, and expands the application range in cooperation with the bendable characteristic.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely illustrative of the embodiments of this utility model and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the utility model, and it is intended to cover all modifications and variations as fall within the scope of the utility model.

Claims

1. The utility model provides a flexible solar cell panel, its characterized in that, including the first flexible protective layer, solar cell and the second flexible protective layer that set gradually, first flexible protective layer and the second flexible protective layer cladding in solar cell's surface through the mode of lamination, solar cell includes a plurality of battery pieces, is first battery piece, second battery piece and a plurality of third battery piece of establishing ties in proper order between first battery piece and second battery piece respectively, wherein, first battery piece and second battery piece deviate from the one end that corresponds the third battery piece and are electrically connected with positive plate and negative plate respectively, positive plate and negative plate all extend to the outside of first flexible protective layer and the flexible protective layer of second.

2. The flexible solar panel of claim 1, wherein: the first flexible protective layer and the second flexible protective layer are both made of transparent materials, and the transparent materials are polycarbonate.

3. The flexible solar panel of claim 1, wherein: and hot melt adhesives are respectively arranged between the contact surfaces of the first flexible protective layer and the solar cell, and the hot melt adhesives are ethylene-vinyl acetate copolymers.

4. The flexible solar panel of claim 1, wherein: the battery piece is characterized in that the two opposite sides of the back of the battery piece are respectively provided with an anode bonding pad and a cathode bonding pad, and corresponding marks are arranged on the anode bonding pad and the cathode bonding pad.

5. The flexible solar panel of claim 4, wherein: and one ends of the positive electrode plate and the negative electrode plate, which are close to the battery plate, are respectively provided with first welding pins corresponding to the corresponding positive electrode bonding pad and the corresponding negative electrode bonding pad in a protruding mode, and are fixed on the corresponding positive electrode bonding pad and the corresponding negative electrode bonding pad through laser welding.

6. The flexible solar panel of claim 4, wherein: the battery pieces are arranged in a rectangular array, the battery pieces arranged in the same row are electrically connected through a first connecting strip, and third battery pieces at the inner ends of two adjacent rows are electrically connected through a second connecting strip.

7. The flexible solar panel of claim 6, wherein: the positive plate, the negative plate, the first connecting strip and the second connecting strip are formed by integrally forming aluminum foils.

8. The flexible solar panel of claim 6, wherein: and second welding pins corresponding to the corresponding positive electrode bonding pad and the corresponding negative electrode bonding pad are respectively protruded on two sides of the first connecting strip and fixed on the corresponding positive electrode bonding pad and the corresponding negative electrode bonding pad through laser welding.

9. The flexible solar panel of claim 6, wherein: and one end of the second connecting strip, which is close to the third battery piece, is convexly provided with a third welding leg corresponding to the corresponding positive electrode welding disc and the corresponding negative electrode welding disc respectively, and is fixed on the corresponding positive electrode welding disc and the corresponding negative electrode welding disc through laser welding.