Solar cell flexible board

Abstract

A solar cell flexible board comprises a body, a transparent cover plate and a back plate. The body comprises a plurality of solar cells and a plurality of wires, and the wires are electrically connected with the solar cells. The transparent cover plate is arranged above the body, has flexibility and is provided with a plurality of through holes, and the through holes are used for the electric wires to penetrate through. The back plate is arranged below the body and has flexibility. Therefore, both the transparent cover plate and the back plate have flexibility, so that the solar cell soft plate can be unfolded or bent.

Description

Technical Field

[0001] The utility model relates to a solar panel, in particular to a solar cell soft panel that can be unfolded or bent. Background Art

[0002] A solar panel is a device that converts solar energy into electrical energy. It consists of a main body, a transparent cover, and a back panel. The main body includes multiple solar cells, the transparent cover is located above the main body, and the back panel is located below the main body.

[0003] However, the transparent cover and back plate are both made of hard materials and are not flexible, which makes the solar panel unable to be bent. Utility Model Content

[0004] The main purpose of the utility model is to provide a solar cell flexible board that can be unfolded or bent.

[0005] To achieve the aforementioned objectives, the present invention provides a flexible solar panel comprising a main body, a transparent cover, and a backsheet. The main body includes a plurality of solar cells and a plurality of wires electrically connected to the solar cells. The transparent cover is disposed above the main body, is flexible, and has a plurality of perforations for the wires to pass through. The backsheet is disposed below the main body and is also flexible.

[0006] In some embodiments, the solar cell flexible panel further includes a first bonding layer disposed between the body and the transparent cover, and configured to bond a bottom surface of the transparent cover to a top surface of the body.

[0007] In some embodiments, the first bonding layer generates adhesiveness after heat pressing, so that the bottom surface of the transparent cover is adhered to the top surface of the body.

[0008] In some embodiments, the first bonding layer is made of ethylene vinyl acetate copolymer.

[0009] In some embodiments, the solar cell flexible panel further includes a second bonding layer disposed between the body and the backsheet and configured to bond a top surface of the backsheet to a bottom surface of the body.

[0010] In some embodiments, the second bonding layer generates adhesiveness after heat pressing, so that the top surface of the back plate is adhered to the bottom surface of the body.

[0011] In some embodiments, the second bonding layer is made of ethylene vinyl acetate copolymer.

[0012] In some embodiments, the solar cell flexible panel further includes an adhesive film integrally formed on a top surface of the back panel and used to bond the top surface of the back panel to a bottom surface of the body.

[0013] In some embodiments, the adhesive film becomes sticky after heat pressing, so that the top surface of the back plate is adhered to the bottom surface of the body.

[0014] In some embodiments, the film is made of ethylene vinyl acetate copolymer.

[0015] In some embodiments, the solar cell flexible panel further includes a plurality of heaters disposed on a top surface of the transparent cover and having flexibility.

[0016] In some embodiments, the solar cell flexible panel further includes a plurality of heaters disposed on a bottom surface of the transparent cover and having flexibility.

[0017] In some embodiments, the solar cell flexible panel further includes a plurality of heaters, which are respectively disposed on a top surface and a bottom surface of the transparent cover and are flexible.

[0018] In some embodiments, each of the heaters is in the shape of a strip.

[0019] In some embodiments, the transparent cover is made of polytetrafluoroethylene.

[0020] In some embodiments, the back plate is made of polymethyl methacrylate.

[0021] The utility model has the advantage that, because both the transparent cover plate and the back plate are flexible, the solar cell flexible panel of the utility model can be unfolded or bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the first embodiment of the present invention;

[0023] Figure 2 This is an exploded view of the first embodiment of the present utility model;

[0024] Figure 3 for Figure 1 The cross-section along line III-III;

[0025] Figure 4 A schematic diagram of the bending of the first embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of multiple first embodiments of the present invention arranged on a cloth body;

[0027] Figure 6A schematic diagram showing a plurality of first embodiments of the present invention disposed on an outer wall of a building;

[0028] Figure 7 This is an exploded view of the second embodiment of the present invention;

[0029] Figure 8 A cross-sectional view of a second embodiment of the present invention;

[0030] Figure 9 A perspective view of a third embodiment of the present invention;

[0031] Figure 10 This is an exploded view of the third embodiment of the present utility model;

[0032] Figure 11 for Figure 9 A cross-sectional view taken along line XI-XI;

[0033] Figure 12 A perspective view of a fourth embodiment of the present invention;

[0034] Figure 13 This is an exploded view of a fourth embodiment of the present utility model;

[0035] Figure 14 for Figure 12 Sectional view along line XIV-XIV.

[0036] Explanation of Figure Numbers

[0037] 1,1A,1B,1C: Solar cell flexible board

[0038] 10:Ontology

[0039] 11: Solar Cells

[0040] 12: Wires

[0041] 20: Transparent cover

[0042] 21:Piercing

[0043] 30: Back panel

[0044] 40: first bonding layer

[0045] 50: Second bonding layer

[0046] 60: Film

[0047] 70: Heater

[0048] 100:cloth body

[0049] 200:Exterior wall of a building DETAILED DESCRIPTION

[0050] The following describes the embodiments of the present invention in more detail with reference to the accompanying drawings and component symbols so that those skilled in the art can implement the invention accordingly after studying the specification.

[0051] Figure 1 It is a three-dimensional diagram of the first embodiment of the present utility model. Figure 2 This is an exploded view of the second embodiment of the present invention. Figure 3 for Figure 1 The cross-sectional view of line Ⅲ-Ⅲ. Figure 1 、 Figure 2 and Figure 3 As shown, the present invention provides a flexible solar panel 1 comprising a main body 10, a transparent cover 20, and a backsheet 30. The main body 10 includes a plurality of solar cells 11 and a plurality of wires 12 electrically connecting the solar cells 11. The transparent cover 20 is disposed above the main body 10 and is flexible. It has a plurality of through-holes 21 for the wires 12 to pass through. The backsheet 30 is disposed below the main body 10 and is also flexible.

[0052] Each solar cell 11 is made of a semiconductor material, such as a silicon chip. Sunlight passes through the transparent cover 20 and strikes the solar cells 11, where it converts the sunlight into electrical energy through the photovoltaic effect. This electrical energy can be transmitted via the wires 12 to an energy storage device (not shown) for storage. The electrical energy can also be transmitted via the wires 12 to any electronic device (not shown).

[0053] Preferably, each solar cell 11 may be a quantum dot solar cell 11 , but is not limited thereto.

[0054] Figure 4 This is a schematic diagram of the bending of the first embodiment of the present invention. Figure 1 and Figure 4 As shown, because the transparent cover plate 20 and the back plate 30 are both flexible, the solar cell flexible board 1 of the present invention can be unfolded or bent.

[0055] Figure 5 This is a schematic diagram of multiple first embodiments of the present invention being arranged on a cloth body 100. Figure 5 As shown, multiple flexible solar panels 1 are mounted on a fabric 100. Because these flexible solar panels 1 are bendable, they can be fixed to the fabric 100 and rolled up for easy portability. Users can carry the fabric 100 and the flexible solar panels 1 to their destination, then unfold the fabric 100. The flexible solar panels 1 then unfurl and electrically connect to an energy storage device or any electronic device, absorbing solar energy and providing electricity to the device or electronic device.

[0056] Figure 6 Schematic diagram of a plurality of first embodiments of the present invention arranged on the outer wall 200 of a building. Figure 6 As shown, multiple solar cell flexible panels 1 are installed on an exterior wall 200 of a building. Because these solar cell flexible panels 1 can be deployed, they can be fixed to the exterior wall 200 of the building and electrically connected to an energy storage device or any electronic device, thereby absorbing solar energy and providing electricity to the energy storage device or electronic device.

[0057] Preferably, the transparent cover 20 is made of polytetrafluoroethylene (PTFE). PTFE is flexible and transparent. The flexibility of PTFE allows the flexible solar cell panel 1 of the present invention to bend or unfold, while the transparency of PTFE allows sunlight to pass through and illuminate the solar cells 11. However, the present invention is not limited to these materials. In some embodiments, any compound with similar properties to PTFE is suitable as the material for the transparent cover 20.

[0058] Preferably, the backsheet 30 is made of polymethylmethacrylate (PMMA). PMMA is flexible, allowing the flexible solar panel 1 of the present invention to bend or unfold, but the invention is not limited to this. In some embodiments, any compound with similar properties to PMMA is suitable as the material for the backsheet 30.

[0059] like Figures 1 to 3 As shown in the first embodiment, the solar cell flexible panel 1 of the present invention further includes a first bonding layer 40 and a second bonding layer 50. The first bonding layer 40 is disposed between the body 10 and the transparent cover 20 and is used to bond a bottom surface of the transparent cover 20 to a top surface of the body 10. The second bonding layer 50 is disposed between the body 10 and the back sheet 30 and is used to bond a top surface of the back sheet 30 to a bottom surface of the body 10.

[0060] Preferably, the first bonding layer 40 and the second bonding layer 50 are both adhesively bonded after heat pressing, so that the bottom surface of the transparent cover plate 20 is bonded to the top surface of the body 10 , and the top surface of the back plate 30 is bonded to the bottom surface of the body 10 .

[0061] Preferably, the material of the first bonding layer 40 and the second bonding layer 50 is ethylene-vinyl acetate (EVA). EVA has the following characteristics: First, when heated and melted to a certain degree, it becomes a liquid that can flow and has a certain viscosity; second, it is solid at room temperature and has good softness, elasticity, flexibility and transparency. The molten state of EVA allows the main body 10, transparent cover 20 and back plate 30 to be fixed. The flexibility of EVA allows the solar cell flexible board 1 of the present invention to bend or unfold. The transparency of EVA allows sunlight to pass through and illuminate the solar cells 11. Therefore, EVA is quite suitable as the material of the first bonding layer 40 and the second bonding layer 50, but is not limited to this. In some embodiments, any compound with similar characteristics to EVA is suitable as the material of the first bonding layer 40 and the second bonding layer 50.

[0062] Figure 7 This is an exploded view of the second embodiment of the present invention. Figure 8 This is a cross-sectional view of the second embodiment of the present invention. Figure 7 and Figure 8 As shown, the difference between the second embodiment and the first embodiment is that the solar cell flexible panel 1A of the present invention does not include the second bonding layer 50. Instead, the solar cell flexible panel 1A of the present invention further includes an adhesive film 60, which is integrally formed on the top surface of the backsheet 30 and is used to bond the top surface of the backsheet 30 to the bottom surface of the body 10. Preferably, the adhesive film 60 is adhesive after heat pressing, so that the top surface of the backsheet 30 is bonded to the bottom surface of the body 10. Preferably, the adhesive film 60 is made of ethylene vinyl acetate copolymer. In other words, the second bonding layer 50 and the adhesive film 60 are made of the same material, except that the second bonding layer 50 is separated from the backsheet 30, while the adhesive film 60 is directly integrally formed on the backsheet 30. This is the only difference between the two.

[0063] Figure 9 This is a perspective view of the third embodiment of the present invention. Figure 10 This is an exploded view of the third embodiment of the present invention. Figure 11 for Figure 9 The cross-sectional view of line XI-XI. Figure 9 、 Figure 10 and Figure 11 As shown, the difference between the third embodiment and the first embodiment is that the flexible solar cell panel 1B of the present invention further includes a plurality of heaters 70 . The heaters 70 are disposed on the top surface of the transparent cover 20 and are flexible.

[0064] Figure 12This is a perspective view of the fourth embodiment of the present invention. Figure 13 This is an exploded view of the fourth embodiment of the present invention. Figure 14 for Figure 12 The cross-section of line XIV-XIV. Figure 12 、 Figure 13 and Figure 14 As shown, the differences between the fourth embodiment and the first embodiment are: first, the solar cell flexible board 1C of the present invention further includes a plurality of heaters 70, which are disposed on the bottom surface of the transparent cover 20 and are flexible; second, the solar cell flexible board 1C of the present invention does not include the first bonding layer 40.

[0065] In some embodiments, the heaters 70 are respectively disposed on the top and bottom surfaces of the transparent cover 20. These embodiments also do not include the first bonding layer 40.

[0066] Preferably, the heater 70 is in a strip shape, but is not limited thereto.

[0067] It is worth mentioning that the heaters 70 can be electrically connected to the wires 12, and the solar cells 11 can supply power to the heaters 70. In some embodiments, the heaters 70 can also be electrically connected to a power supply device (not shown), which can supply power to the heaters 70.

[0068] When the flexible solar cell panels 1B and 1C of the present invention are used in areas subject to snowfall, such as high mountains, mid-latitudes, or high latitudes, snow will accumulate on the transparent cover 20, preventing sunlight from passing through the snow and, consequently, preventing sunlight from irradiating the solar cells 11. At this point, the heaters 70 are activated, and the heat energy from the heaters 70 is transferred to the transparent cover 20, melting the snow. After the snow melts, the transparent cover 20 is no longer covered by snow, allowing sunlight to once again pass through the transparent cover 20 and irradiate the solar cells 11. Furthermore, the flexibility of the heaters 70 enables the flexible solar cell panel 1B of the present invention to be bent or unfolded.

[0069] The above description is only used to explain the preferred embodiments of the present invention and is not intended to limit the present invention in any form. Therefore, any modifications or changes to the present invention made under the same creative spirit should still be included in the scope of protection intended by the present invention.

Claims

1. A solar cell flexible board, characterized in that: include: A body comprising a plurality of solar cells and a plurality of wires, wherein the plurality of wires are electrically connected to the plurality of solar cells; a transparent cover plate, disposed above the body, having flexibility and having a plurality of through-holes, wherein the plurality of through-holes are used for allowing the plurality of wires to pass through; as well as The back plate is arranged below the main body and is flexible.

2. The solar cell flexible board according to claim 1, characterized in that: The invention further comprises a first bonding layer, which is arranged between the main body and the transparent cover plate and is used to bond the bottom surface of the transparent cover plate to the top surface of the main body.

3. The solar cell flexible board according to claim 2, characterized in that: The first bonding layer generates adhesiveness after heat pressing, so that the bottom surface of the transparent cover is adhered to the top surface of the body.

4. The solar cell flexible board according to claim 1, characterized in that: The invention further comprises a second bonding layer, which is arranged between the body and the back plate and is used to bond the top surface of the back plate to the bottom surface of the body.

5. The solar cell flexible board according to claim 4, characterized in that: The second bonding layer generates adhesiveness after being hot-pressed, so that the top surface of the back plate is adhered to the bottom surface of the body.

6. The solar cell flexible board according to claim 1, characterized in that: It further includes an adhesive film, which is integrally formed on a top surface of the back plate and is used to connect the top surface of the back plate to the bottom surface of the body.

7. The solar cell flexible board according to claim 6, characterized in that: The adhesive film becomes sticky after being hot-pressed, so that the top surface of the back plate is adhered to the bottom surface of the body.

8. The solar cell flexible board according to claim 1, characterized in that: It further includes a plurality of heaters, which are arranged on the top surface and / or the bottom surface of the transparent cover and are flexible.

9. The solar cell flexible board according to claim 8, characterized in that: Each of the heaters is in a strip shape.

10. The solar cell flexible board according to claim 1, characterized in that: The transparent cover plate is made of polytetrafluoroethylene, and the back plate is made of polymethyl methacrylate.

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