Photovoltaic heat preservation multifunctional curtain wall plate

Abstract

The utility model discloses a photovoltaic heat preservation multifunctional curtain wall board which comprises a heat preservation unit and a photovoltaic unit, the heat preservation unit comprises a vacuum heat preservation plate and a first supporting plate which are fixedly connected, the photovoltaic unit comprises a solar cell panel, a light guide non-transparent decorative surface material which is covered on the surface of the solar cell panel, the back surface of the solar cell panel is provided with an electric wire, and the electric wire passes through the side wall of the vacuum heat preservation plate. The photovoltaic heat preservation multifunctional curtain wall board has the advantages of light weight, good heat preservation effect, high light conversion efficiency and artisticity.

Description

Technical Field

[0001] This utility model belongs to the field of building photovoltaic materials technology. Specifically, this utility model relates to a photovoltaic thermal insulation multifunctional curtain wall panel. Background Technology

[0002] Currently, building-integrated photovoltaics (BIPV) is a new direction in the application of solar power, using solar photovoltaic arrays installed on the exterior surface of a building's envelope to provide electricity. However, with current photovoltaic technology, its main component—the solar cells—can only appear black or blue. To ensure sufficient light enters the solar cells and allow them to fully perform their photoelectric conversion function, current photovoltaic panels use glass panels covering the surface of the solar cells as a protective layer. When these photovoltaic panels are attached to the exterior surface of a building, that part of the building appears black or blue, creating a color and pattern mismatch with the rest of the building and severely damaging its aesthetic appeal.

[0003] On the other hand, the functional requirements of buildings are diversified. In addition to artistry, the use of solar power and thermal insulation are also important requirements for modern buildings.

[0004] The applicant has invented a decorative surface material with light-guiding function. Although the surface of the decorative surface material is printed or sprayed with patterns, it can still allow sunlight to enter from the outer surface and be fully refracted out from the back, as shown in Chinese invention patent application with publication number CN118580786A.

[0005] Therefore, only by using light-guiding non-transparent decorative materials to manufacture curtain wall panels with artistic beauty and multiple functions can the diverse needs of existing buildings be met. Utility Model Content

[0006] This utility model aims to solve the obstacles in the application of photovoltaic panels in the prior art, namely the defects of destroying the aesthetics of buildings and the single function, and provides a photovoltaic thermal insulation multifunctional curtain wall panel. This photovoltaic thermal insulation multifunctional curtain wall panel has the functions of decoration, solar power generation and thermal insulation, and can meet the diverse needs of existing buildings.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A photovoltaic thermal insulation multifunctional curtain wall panel, comprising:

[0009] Insulation unit: includes a fixedly connected vacuum insulation board and a first support plate;

[0010] Photovoltaic unit: includes a solar panel, a light-guiding non-transparent decorative material covering the surface of the solar panel, and a connecting wire on the back of the solar panel, which passes around the side wall of the vacuum insulation board.

[0011] Furthermore, the photovoltaic thermal insulation multifunctional curtain wall panel of this utility model also includes a frame unit, in which the periphery of the vacuum insulation board and the first support plate are embedded, and the connecting wires are embedded in the frame unit around the side wall of the vacuum insulation board.

[0012] Furthermore, the frame unit includes a straight groove frame with beveled ends, and two groove frames are joined at the beveled ends to form a right-angle frame.

[0013] Furthermore, four groove frames are embedded around the vacuum insulation plate and the first support plate.

[0014] Furthermore, the back of the solar panel of the photovoltaic unit is fixed to the vacuum insulation board and the groove frame.

[0015] Furthermore, the frame unit also includes a right-angle connector, which is fixedly connected to the joint of the two groove frames.

[0016] Furthermore, the vacuum insulation board is a vacuum fiberglass board, and the first support plate is an MCM board.

[0017] Furthermore, the solar panel includes a solar cell layer, a transparent protective layer fixed to the surface and back of the solar cell layer, and a light-guiding non-transparent decorative material covering the transparent protective layer on the surface of the solar cell layer.

[0018] Furthermore, the solar panel also includes a second support plate, which is fixed below the transparent protective layer on the back of the solar cell layer. The second support plate is an MCM plate.

[0019] Furthermore, the surface of the light-guiding non-transparent decorative material is planar or uneven, and is printed or sprayed with patterns.

[0020] Compared with the prior art, the present invention has the following technical effects:

[0021] This utility model uses a light-guiding non-transparent decorative surface material to cover the solar panel. The surface of the entire curtain wall panel presents the texture and pattern of the non-transparent decorative surface material, which not only has the function of photovoltaic power generation, but also has the function of heat insulation. Compared with other insulation materials, the vacuum insulation board is lighter and thinner, and has excellent heat insulation performance. The connecting wires of the solar panel pass around the side wall of the vacuum insulation board. On the one hand, it will not damage the internal vacuum structure of the vacuum insulation board and ensure the excellent heat insulation function of the vacuum insulation board. On the other hand, it is embedded in the groove frame and the wiring is routed through the inner wall of the groove frame, which will not affect the overall aesthetic appearance of the board.

[0022] The light-guiding non-transparent decorative surface material described in this utility model is a non-transparent surface layer. Sunlight can penetrate the light-guiding non-transparent decorative surface material and enter the solar cell to be absorbed and converted into electricity. However, from the outside, only the pattern and color presented by the light-guiding non-transparent decorative surface material can be seen. Therefore, the solar cell covered by the light-guiding non-transparent decorative surface material cannot be seen from the outside of the curtain wall panel, which allows the appearance of the curtain wall panel to be customized with the desired pattern and color.

[0023] In this invention, the solar panel is fixed to the vacuum insulation board and the groove frame. Compared with the prior art of embedding the solar panel into the frame, the solar panel has a larger area to receive sunlight and can absorb and convert more sunlight. Moreover, the surface of the entire solar cell layer is covered with a light-guiding non-transparent decorative material. The outer surface of the entire curtain wall panel is completely covered with the light-guiding non-transparent decorative material, the frame is hidden, and it is more beautiful.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is a structural schematic diagram of a photovoltaic heat-insulating multifunctional curtain wall panel according to one embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the structure of a photovoltaic heat-insulating multifunctional curtain wall panel according to one embodiment of this utility model;

[0028] Figure 3 This is another angle schematic diagram of a photovoltaic heat-insulating multifunctional curtain wall panel according to an embodiment of this utility model.

[0029] Figure 4 This is a schematic diagram of the groove frame according to an embodiment of the present invention. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In one aspect of this utility model, a photovoltaic thermal insulation multifunctional curtain wall panel includes a thermal insulation unit and a photovoltaic unit. The thermal insulation unit includes a vacuum insulation board 41 and a first support plate 42 fixedly connected. The photovoltaic unit includes a solar panel 20 and a light-guiding non-transparent decorative surface material 10 covering the surface of the solar panel. A connecting wire is provided on the back of the solar panel 20, and the connecting wire passes around the side wall of the vacuum insulation board 42. Compared with other thermal insulation materials, the vacuum insulation board has the advantages of being lighter and thinner, while maintaining excellent thermal insulation performance and reducing the overall weight of the curtain wall panel. The connecting wire of the solar panel 20 passing around the side wall of the vacuum insulation board 41 does not damage the internal vacuum structure of the vacuum insulation board, ensuring its excellent thermal insulation function, and also does not compromise the overall aesthetic appearance of the curtain wall panel.

[0032] Optionally, the photovoltaic thermal insulation multifunctional curtain wall panel of this utility model also includes a frame unit. The periphery of the vacuum insulation board 41 and the first support plate 42 is embedded in the frame unit. The connecting wire is embedded in the frame unit around the side wall of the vacuum insulation board 41. That is, the connecting wire is between the outer side wall of the vacuum insulation board 41 and the inner wall of the frame unit, and the connecting wire is wrapped by the frame unit, which improves the overall simplicity of the curtain wall panel and makes the connection between the vacuum insulation board 42 and the first support plate 42 more stable.

[0033] Specifically, the frame unit includes straight groove frames 31 with beveled ends. Two groove frames 31 are joined at the beveled ends to form a right-angled frame. Four groove frames 31 can be assembled into a quadrilateral frame. The vacuum insulation board 41 and the first support plate 42 are embedded in the four groove frames 31. The frame unit also includes right-angle connectors 32, which are fixedly connected at the joint of two groove frames 31. Connecting nails are then driven into the groove frames 31 from the back of the right-angle connectors 32, making the adjacent groove frames 31 firmly connected, thereby tightly wrapping the vacuum insulation board 41 and the first support plate 42.

[0034] In this embodiment, the back of the solar panel 20 of the photovoltaic unit is fixed to the vacuum insulation board 41 and the groove frame 31. The vacuum insulation board is a vacuum fiberglass board, and the first support plate is an MCM board. The MCM board is modified inorganic powder, commonly known as soft ceramic.

[0035] Optionally, the solar panel 20 includes a solar cell layer, a transparent protective layer fixed to the surface and back of the solar cell layer, and a light-guiding non-transparent decorative material 10 covering the transparent protective layer on the surface of the solar cell layer. Preferably, the solar panel 20 further includes a second support plate, which is fixed below the transparent protective layer on the back of the solar cell layer, and the second support plate is an MCM plate.

[0036] Optionally, the surface of the light-guiding non-transparent decorative material 10 is planar or uneven, and is printed or sprayed with a pattern.

[0037] In this embodiment, the light-guiding non-transparent decorative surface material 10 can be an earlier invention of the applicant, such as the light-guiding decorative surface layer described in Chinese Patent Publication No. CN118580786A. The light-guiding non-transparent decorative surface material 10 includes a multi-faceted refractive microcrystalline layer and a pattern layer sprayed or printed on the multi-faceted refractive microcrystalline layer. The thickness of the entire light-guiding non-transparent decorative surface material is 0.2-1 mm, wherein the thickness of the multi-faceted refractive microcrystalline layer is 0.15-0.95 mm, and the thickness of the pattern layer is 0.05-0.2 mm. Preferably, the thickness of the entire light-guiding non-transparent decorative surface material 10 is 0.55-0.75 mm, wherein the thickness of the multi-faceted refractive microcrystalline layer is 0.50-0.70 mm, and the thickness of the pattern layer is 0.05-0.1 mm. Of course, other material layers that have the ability to transmit sunlight but are non-transparent are also within the scope of the light-guiding non-transparent decorative surface material 10 in this embodiment.

[0038] In this embodiment, the light-guiding non-transparent decorative surface material 10 is glued and fixed above the solar panel 20 with an adhesive; similarly, the solar panel 20 is glued and fixed to the vacuum insulation board 41 and the groove frame 31 with an adhesive, such as EVA or POE.

[0039] Furthermore, the inventors discovered that placing a flexible support layer on top of the solar cell layer before fixing it to the vacuum insulation board 31 provides better protection for the solar cell layer, offering significant protection both during the manufacturing process of the curtain wall panel and during product use. On one hand, this provides excellent protection and buffering during the transportation and transfer of the solar cell layer on the production line before it is laminated with the vacuum insulation board 41. On the other hand, after lamination, the curtain wall panel provides excellent impact buffering when installed on the wall or used for dry hanging.

[0040] It should be noted that the photovoltaic thermal insulation multifunctional curtain wall panel in this application can be installed on roofs, exterior walls, fences and other buildings. In practice, it is used in newly built and / or renovated residential buildings, commercial buildings, hotels, schools, hospitals, bridges, power plants, office buildings and other buildings.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A photovoltaic thermal insulation multifunctional curtain wall panel, characterized in that, include: Insulation unit: includes a fixedly connected vacuum insulation board and a first support plate; Photovoltaic unit: includes a solar panel, a light-guiding non-transparent decorative material covering the surface of the solar panel, and a connecting wire on the back of the solar panel, which passes around the side wall of the vacuum insulation board.

2. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 1, characterized in that: It also includes a frame unit, in which the periphery of the vacuum insulation board and the first support plate is embedded, and the connecting wire is embedded in the frame unit around the side wall of the vacuum insulation board.

3. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 2, characterized in that: The frame unit includes a straight groove frame with beveled ends, and two groove frames are joined at the beveled ends to form a right-angle frame.

4. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 3, characterized in that: The vacuum insulation board and the first support plate are embedded in four groove frames around their perimeter.

5. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 4, characterized in that: The back of the solar panel of the photovoltaic unit is fixed to the vacuum insulation board and the groove frame.

6. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 4, characterized in that: The frame unit also includes a right-angle connector, which is fixedly connected to the joint of the two groove frames.

7. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 1, characterized in that: The vacuum insulation board is a vacuum fiberglass board, and the first support plate is an MCM board.

8. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 1, characterized in that: The solar panel includes a solar cell layer, a transparent protective layer fixed to the surface and back of the solar cell layer, and a light-guiding non-transparent decorative material covering the transparent protective layer on the surface of the solar cell layer.

9. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 8, characterized in that: The solar panel also includes a second support plate, which is fixed below the transparent protective layer on the back of the solar cell layer. The second support plate is an MCM plate.

10. The photovoltaic thermal insulation multifunctional curtain wall panel according to claim 1, characterized in that: The surface of the light-guiding non-transparent decorative material is planar or uneven, and is printed or sprayed with patterns.

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