Photovoltaic integrated decorative thermal insulation integrated panel

Abstract

The utility model relates to a kind of photovoltaic integrated decorative heat preservation integrated board, including, decorative light-gathering layer and light-gathering power generation layer, optical lens is provided on the decorative light-gathering layer, the optical lens is connected with optical fiber extension into light-gathering power generation layer, photovoltaic piece is provided in the light-gathering power generation layer;The utility model is ready for use, can directly generate electricity after installation, it can be single piece independent use, also can be combined splicing by multiple blocks;And modular design is used, when partial unit appears abnormal, it does not affect overall power generation function, with the advantages of high functional integration, easy to install, fault tolerance is strong.

Description

Technical Field

[0001] This utility model belongs to the field of building-integrated photovoltaics (BIPV) technology, specifically a photovoltaic integrated decorative and thermal insulation panel. Background Technology

[0002] Existing centralized photovoltaic power generation panels, due to their limited functionality and low integration, are no longer able to meet the demands of modern buildings for "energy saving, aesthetics, and multi-functional integration".

[0003] This utility model is an integrated solution that deeply integrates the three core functions of decoration, power generation and heat preservation, in order to break through the functional fragmentation bottleneck of existing technologies. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given the following technical problems in the existing technology: the existing photovoltaic centralized power generation panels have single functions and low integration, it is necessary to achieve the integration of decoration, power generation and heat preservation into one function.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a photovoltaic integrated decorative and thermal insulation panel, comprising,

[0007] A decorative light-collecting layer and a concentrated light-generating layer are provided. An optical lens is provided on the decorative light-collecting layer. An optical fiber is connected to the optical lens and extends into the concentrated light-generating layer. A photovoltaic cell is provided at the bottom of the concentrated light-generating layer.

[0008] As a preferred technical solution for a photovoltaic integrated decorative insulation panel, the decorative light-collecting layer includes a light-collecting panel with a first through hole, an optical lens disposed at one end of the first through hole, and an optical fiber inserted from the other end of the first through hole.

[0009] As a preferred technical solution for a photovoltaic integrated decorative insulation panel, the concentrating power generation layer includes a concentrating box and a concentrating box cover. The concentrating box has an inverted truncated pyramid structure. The photovoltaic cells are disposed at the bottom of the concentrating box. A second perforation is provided on the concentrating box cover, and the optical fiber extends into the concentrating box through the second perforation.

[0010] As a preferred technical solution for photovoltaic integrated decorative insulation panel, the inner wall of the focusing box and the bottom surface of the focusing box cover are coated with a high-reflectivity mirror film.

[0011] As a preferred technical solution for photovoltaic integrated decorative insulation panel, after the photovoltaic power generation layer and the decorative light-collecting layer are assembled, they are embedded in the integrated panel shell as a whole, and the integrated panel shell is connected to the decorative light-collecting layer and the photovoltaic power generation layer by edge strips.

[0012] As a preferred technical solution for photovoltaic integrated decorative and thermal insulation panels, a cavity is formed between the focusing box and the bottom plate of the integrated panel cover.

[0013] As a preferred technical solution for photovoltaic integrated decorative and thermal insulation panels, a thermal insulation layer is provided on the outer bottom of the integrated panel cover.

[0014] As a preferred technical solution for photovoltaic integrated decorative and thermal insulation panels, the electronic control component is set on the bottom plate of the integrated panel cover in the cavity position, and the electronic control component is connected to the photovoltaic cell.

[0015] As a preferred technical solution for photovoltaic integrated decorative insulation panel, the integrated panel cover has ventilation holes on the side and bottom.

[0016] This utility model also discloses a method for preparing a photovoltaic integrated decorative and heat-insulating panel, wherein a decorative light-collecting layer is prepared by: opening a first perforation on the panel and installing an optical lens and an optical fiber, and connecting the optical fiber and the optical lens concentrically and coaxially.

[0017] Preparation of the concentrated photovoltaic layer: A reflective mirror film is coated on the inner wall of the concentrator box and the inner side of the box cover. Flexible thin-film photovoltaic sheets are pasted to the bottom of the concentrator box. Electrical control components are installed in the cavity of the bottom plate of the integrated cover.

[0018] Pre-assembly: The light-collecting box cover is precisely aligned and bonded to the bottom surface of the decorative light-collecting layer panel to form a composite;

[0019] Final assembly: The composite from the pre-assembly step is closed with the light-concentrating box body and embedded into the integrated panel shell. The energy-saving insulation layer is then fixed to the bottom of the shell to complete the integrated panel preparation.

[0020] The beneficial effects of this utility model are: it is ready to use immediately after installation and can generate electricity directly. It can be used independently as a single unit or multiple units can be combined and spliced ​​together. Moreover, it adopts a modular design, so when a local unit malfunctions, it does not affect the overall power generation function. It has the advantages of high functional integration, convenient installation and strong fault tolerance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the decorative panel in this utility model;

[0023] Figure 2 This is a schematic diagram of the extended structure of the decorative panel in this utility model;

[0024] Figure 3 This is a top view of the light-collecting panel of this utility model.

[0025] Reference numerals: 103, light-collecting panel; 101, optical lens; 103a, first perforation; 102, optical fiber; 202a, second perforation; 202, light-collecting box cover; 100, decorative light-collecting layer; 204, edge strip; 201, light-collecting box; 200, light-collecting power generation layer; 300, insulation layer; 205, cavity; 206, photovoltaic cell; 203, integrated panel cover; 203a, vent hole. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Example 1

[0031] Reference Figures 1-2 This embodiment provides a photovoltaic integrated decorative and thermal insulation panel, comprising:

[0032] A decorative light-collecting layer 100, a concentrated power generation layer 200, and an energy-saving insulation layer 300 are provided. An optical lens 101 is provided on the decorative light-collecting layer 100. An optical fiber 102 is connected to the optical lens 101 and extends into the concentrated power generation layer 200. A photovoltaic cell 206 is provided in the concentrated power generation layer 200.

[0033] The decorative light-collecting layer 100 is disposed above the light-concentrating power generation layer 200. The decorative light-collecting layer 100 serves both a decorative effect and a light-collecting function. The surface of the decorative light-collecting layer 100 can present at least one of the following decorative effects: metallic texture, wood grain, stone grain, or relief. Specifically, the light-collecting panel 103 can be a metal plate, wood plate, stone grain plate, or relief plate, etc., to display the corresponding decorative effect. The light-concentrating power generation layer 200 is fixed to the back of the light-collecting panel 103. The front (top) of the light-collecting panel 103 serves both a decorative effect and a light-collecting function.

[0034] The decorative light-collecting layer 100 includes a light-collecting panel 103, a first through hole 103a is provided through the light-collecting panel 103, an optical lens 101 is provided at one end of the first through hole 103a, and an optical fiber 102 is inserted from the other end of the first through hole 103a.

[0035] The concentrated power generation layer 200 includes a concentrated box 201 and a concentrated box cover 202. The concentrated box 201 has an inverted truncated pyramid structure. The photovoltaic cell 206 is disposed at the bottom of the concentrated box 201. The concentrated box cover 202 is provided with a second perforation 202a. The optical fiber 102 extends into the concentrated box 201 through the second perforation 202a.

[0036] The inner wall of the focusing box 201 and the bottom surface of the focusing box cover 202 are coated with a highly reflective mirror film.

[0037] After the concentrating power generation layer 200 is assembled, it is embedded in the integrated panel cover 203. The integrated panel cover 203 is connected to the decorative light-collecting layer 100 by the edge strip 204.

[0038] Furthermore, multiple decorative light-gathering layers 100 can be spliced ​​together, and the edge banding strip 204 connects the integrated panel cover 203 to the tongue and groove joint of the light-gathering panel 103 with screws. This ensures that when multiple integrated unit panels are assembled, the seamless splicing effect between the panels is not hindered.

[0039] A cavity 205 is left between the light-focusing box 201 and the base plate of the integrated panel cover 203.

[0040] The light-concentrating box 201 has an inverted truncated square spatial structure, which is used to reflect the light introduced by the optical fiber 102, so that the light shines on the photovoltaic cell 206 and improves the uniformity of illumination.

[0041] Furthermore, the bottom of the optical fiber 102 may be provided with a beveled surface to guide the light to illuminate the inner wall of the light-concentrating box 201.

[0042] Furthermore, a focusing box 201 contains four inverted quadrangular truncated spatial structures, separated by cavities 205, which are cross-shaped.

[0043] Specifically, ignoring the structural differences between the insulation layer 300 and the vent 203a, Figure 1 Corresponding to Figure 3 The cross-sectional structure of AA in the middle. Figure 2 Corresponding to Figure 3 Cross-sectional structure of BB.

[0044] A heat insulation layer 300 is installed at the bottom of the concentrating power generation layer 200. The heat insulation layer 300 is an energy-saving heat insulation layer.

[0045] The electronic control component is located on the bottom plate of the integrated panel cover at the cavity 205 position. The electronic control component is connected to the photovoltaic cell 206 by circuit. The side wall of the concentrator box 201 is provided with a wiring hole for connecting the photovoltaic cell 206 and the electronic control component. The location of the wiring hole does not affect the coating of the high reflectivity mirror film.

[0046] The electrical control components are used to convert the electrical energy output by the photovoltaic cells. Their conversion principle and structure are existing technologies and will not be described in detail here.

[0047] The integrated panel cover 203 has ventilation holes 203a on its sides and bottom.

[0048] The vent 203a is used to allow air to circulate between the photovoltaic integrated decorative insulation panels, thereby improving ventilation and heat dissipation.

[0049] The photovoltaic integrated decorative and thermal insulation panel of this utility model adopts a three-layer modular structure, which includes a decorative light-collecting layer 100, a light-concentrating power generation layer 200 and an energy-saving thermal insulation layer 300 from top to bottom. Each layer is precisely connected and integrated into one.

[0050] Optical lenses 101 are arranged in an array on the light-collecting panel 103. The optical lenses are placed on the surface of the panel. One end of the optical fiber is coaxially connected to the lens and extends downward through the light-collecting panel 103 and the light-collecting box cover 202 to the light-collecting box 201 to provide light energy to the photovoltaic cell for conversion into electrical energy.

[0051] The concentrator box cover and the inner side of the decorative light-collecting layer panel are precisely aligned. The first perforation 103a and the second perforation 202a are concentrically and coaxially bonded. The flexible thin-film photovoltaic sheet is pasted to the bottom of the concentrator box body, matching the shape and area of ​​the bottom of the concentrator box. The light guided into the box by the optical fiber is reflected and refracted multiple times by the mirror film on the inner wall of the concentrator box, and then converges on the surface of the flexible photovoltaic sheet to achieve efficient power generation. The concentrator box is embedded in the integrated panel shell. The concentrator box cavity on the bottom plate of the integrated panel shell integrates wires, input and output controllers and batteries to meet the modular requirements of power generation, energy storage and power consumption.

[0052] This utility model integrates the power generation unit to avoid affecting the decorative function of the decorative panel. The light source from the outside is concentrated by the optical lens 101 and introduced into the photovoltaic cell 206 inside the concentrating power generation layer 200 through the optical fiber 102 to generate electricity.

[0053] The energy-saving insulation layer is made of flame-retardant insulation material and is fixed to the bottom of the integrated panel cover. Specifically, it can be fixed by snap-on plates.

[0054] After the above layers are assembled, they form an integrated unit panel that can be used immediately. It can be used independently or multiple panels can be combined and spliced ​​together. Local abnormalities will not affect the overall power generation.

[0055] The inverted truncated pyramid structure of the concentrator box satisfies the following requirements: the box body is wider at the top and narrower at the bottom, and the reflectivity of the inner wall reflective mirror film is ≥90%, ensuring that the light converges on the flexible thin-film photovoltaic area after multiple reflections.

[0056] The decorative light-gathering layer panel is made of natural or artificial boards. The surface of the panel is decorated with colors and textures that express the texture of building materials through natural or artificial shaping, so as to achieve the desired decorative effect.

[0057] The flame-retardant insulation material for the energy-saving insulation layer is one of aerogel, extruded polystyrene board, or rock wool board.

[0058] The light-collecting box cover is bonded to the decorative light-collecting layer panel.

[0059] The integrated panel housing is made of metal, and the focusing box and housing are fixed together by edge strips. The structure of the integrated panel housing is easy to form by stamping.

[0060] The decorative light-collecting layer-light-concentrating box cover composite is then fitted with the light-concentrating box body containing the built-in flexible photovoltaic cells, and the whole assembly is embedded into the slot of the integrated panel cover. Finally, the energy-saving insulation layer is fixed to the bottom of the cover, thus completing the integrated assembly.

[0061] This utility model also includes a method for preparing a photovoltaic integrated decorative and heat-insulating panel, including preparing a decorative light-collecting layer: opening a first perforation in the panel and installing an optical lens, and connecting the optical fiber port in the first perforation to the end face of the lens one by one in a concentric and coaxial manner.

[0062] Preparation of the concentrated photovoltaic layer: A reflective mirror film is coated on the inner wall of the concentrator box and the inner side of the box cover. Flexible thin-film photovoltaic sheets are pasted to the bottom of the concentrator box. Electrical control components are installed in the cavity position on the bottom plate of the integrated panel cover.

[0063] Pre-assembly: The light-collecting box cover and the decorative light-collecting layer panel are precisely aligned and bonded to form a composite;

[0064] Final assembly: The composite from the pre-assembly step is closed with the light-concentrating box body and embedded into the integrated panel shell. The energy-saving insulation layer is then fixed to the bottom of the shell to complete the integrated panel preparation.

[0065] The optical lens 101 has a light-gathering function, which can concentrate a large range of light sources from the outside into the optical fiber 102 through a small convex lens, thus avoiding affecting the decorative function of the decorative panel. For example, if one side of the encapsulation shell 100 is made into a transparent glass surface, although more light sources can enter the decorative shell 100, the decorative panel will also lose its decorative function. At the same time, it does not have a light-gathering function, and its efficiency is singular and limited. The use of the optical lens does not affect the overall appearance of the decorative panel, and can collect a large range of light sources, thereby improving the power generation efficiency.

[0066] The beneficial effects of this utility model include:

[0067] 1. High functional integration and efficient collaboration of three functions: For the first time, the three core functions of decoration, power generation and heat preservation are deeply integrated through a three-layer modular structure. The decorative light-collecting layer simultaneously achieves aesthetic enhancement and light capture, the light-concentrating power generation layer improves power generation efficiency through the reflective design of the light-concentrating box, and the energy-saving heat preservation layer not only ensures reduced building energy consumption, but also provides a suitable working temperature for photovoltaic cells, breaking through the limitations of the single function of traditional photovoltaic cells.

[0068] 2. Excellent power generation efficiency and adaptability: Through array-type optical lenses, fiber optic transmission, and high-reflectivity mirror film on the inner wall of the concentrator, natural light magnified by the lenses is efficiently focused onto the flexible photovoltaic sheet after multiple reflections and refractions, greatly improving light utilization. The precise matching of the flexible photovoltaic sheet and the concentrator, combined with the modular housing and electrical control components, meets the diverse needs of single-piece independent power generation or multi-piece combined power generation.

[0069] 3. Easy installation and strong fault tolerance: The modular assembly process of "install and use" is adopted. The installation can be completed by precise docking of each layer and overall embedding into the shell, without complicated on-site construction. When a local unit is abnormal, it will not affect the overall power generation function. Later maintenance only requires targeted replacement of the faulty module, reducing operation and maintenance costs and system downtime risk.

[0070] 4. Balancing aesthetics and safety: The decorative light-gathering panel can present a variety of textures such as metal, wood grain, and stone grain, which can be matched with different architectural styles; the energy-saving insulation layer uses flame-retardant materials, which not only blocks heat conduction to achieve energy saving, but also improves the overall fire safety of the integrated panel, taking into account both aesthetic appearance and safety of use.

[0071] Furthermore, the specific production process of this utility model also includes the following aspects:

[0072] I. Basic Parameter Settings for the Implementation Example

[0073] In this embodiment, the functional layers of the integrated unit board are seamlessly integrated through a precise alignment structure, and the thickness ratio of each layer is adapted according to the actual application scenario requirements to ensure that the decorative, power generation, and heat preservation functions are balanced.

[0074] II. Specific Preparation of Each Functional Layer

[0075] (I) Preparation of decorative light-collecting layer

[0076] 1. Select metal or composite board as the substrate, and use precision engraving technology to process an array of optical lens holes (first perforation) on the outer surface of the panel. The lens holes are distributed in a regular array. Then, an optical lens with excellent light transmission is embedded in each lens hole and fixed with a special adhesive to ensure that the optical lens is flush with the surface of the panel.

[0077] 2. Roughen the inner surface of the panel to enhance adhesion; then insert optical fibers into the first perforation of each lens on the inner surface of the panel, and fix the optical fibers with adhesive to ensure that the optical fibers and lenses are concentric and coaxial. Leave an appropriate length at the other end of the optical fiber for docking with the lower layer; finally, perform surface finishing treatment on the outer surface of the panel to present the preset color, texture and feel (such as metal, wood grain, stone grain, relief, etc.) to complete the preparation of the decorative light-gathering layer.

[0078] (II) Preparation of Concentrated Photovoltaic Layer

[0079] 1. Concentrator Box Fabrication: The concentrator box is injection molded from high-strength engineering plastic, with an overall inverted truncated pyramid structure (wider at the top and narrower at the bottom), consisting of a concentrator box lid and a fixed box body. High-reflectivity mirror film is vacuum electroplated onto the inner wall of the box and the inner side of the lid. The concentrator box lid tightly covers the concentrator box, forming a sealed space with dustproof and waterproof properties.

[0080] 2. Flexible photovoltaic cell installation: Select a flexible thin-film photovoltaic cell whose size perfectly matches the bottom surface of the concentrator box. Apply thermally conductive adhesive to the back of the photovoltaic cell and accurately attach it to the center of the bottom of the concentrator box, ensuring that the photovoltaic cell is completely attached to the bottom of the box for efficient reception of concentrated light.

[0081] 3. Integration of housing and electronic control components: The housing is made of metal sheet stamping and forming an integrated plate. The bottom plate of the housing has pre-set wire holes, controller mounting slots and battery slots. The input and output controllers and batteries are fixed to the corresponding slots with fasteners, and the controllers, batteries and photovoltaic cells (with reserved wires) are connected in sequence with high temperature resistant wires to form a complete power generation and energy storage circuit.

[0082] 4. Interlayer connection: Pass the reserved optical fiber of the decorative light-collecting layer through the central hole of the light-collecting box cover, so that the end of the optical fiber extends into the light-collecting box to an appropriate length; then bond the light-collecting box cover to the inner surface of the decorative light-collecting layer with structural adhesive to ensure that the lens, optical fiber and light-collecting box are completely aligned to form a "decorative light-collecting layer-light-collecting box cover" composite.

[0083] III) Preparation of Energy-Saving Insulation Layer

[0084] Flame-retardant insulation material (aerogel rock wool) is selected as the insulation substrate. The insulation substrate is cut according to the bottom size of the integrated panel shell. Sealant is applied to the upper surface of the insulation substrate (the surface that meets the shell) to enhance adhesion and sealing, thus completing the preparation of the energy-saving insulation layer.

[0085] III. Integrated Assembly Process

[0086] 1. Fasten the "decorative light-collecting layer-light-concentrating box cover" composite with the light-concentrating box body containing the built-in flexible photovoltaic cells. The fastening point is positioned using a snap-fit ​​structure and then reinforced with fasteners to ensure that the light-concentrating box is not loose or misaligned.

[0087] 2. Embed the assembled “decorative light-collecting layer-light-concentrating box-photovoltaic cell” into the integrated panel housing.

[0088] 3. Attach the adhesive surface of the energy-saving insulation layer to the bottom of the integrated panel cover, and use a pressing device to completely bond the insulation layer to the cover, thus completing the assembly of the entire integrated unit panel.

[0089] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0090] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A photovoltaic integrated decorative and thermal insulation panel, characterized in that: include, A decorative light-collecting layer and a concentrated light-generating layer are provided. An optical lens is provided on the decorative light-collecting layer. An optical fiber is connected to the optical lens and extends into the concentrated light-generating layer. A photovoltaic cell is provided at the bottom of the concentrated light-generating layer.

2. The photovoltaic integrated decorative and thermal insulation panel according to claim 1, characterized in that: The decorative light-collecting layer includes a light-collecting panel with a first through hole, an optical lens disposed at one end of the first through hole, and an optical fiber inserted from the other end of the first through hole.

3. The photovoltaic integrated decorative and thermal insulation panel according to claim 2, characterized in that: The concentrated photovoltaic layer includes a concentrator box and a concentrator box cover. The concentrator box has an inverted truncated pyramid structure. The photovoltaic cell is disposed at the bottom of the concentrator box. A second perforation is provided on the concentrator box cover, and the optical fiber extends into the concentrator box through the second perforation.

4. The photovoltaic integrated decorative and thermal insulation panel according to claim 3, characterized in that: The inner wall of the focusing box and the bottom surface of the focusing box cover are coated with a highly reflective mirror film.

5. The photovoltaic integrated decorative and thermal insulation panel according to claim 4, characterized in that: After the light-concentrating and power-generating layers and the decorative light-collecting layers are assembled, they are embedded in the integrated panel housing. The integrated panel housing is connected to the decorative light-collecting layer and the light-concentrating and power-generating layers by edge banding strips.

6. The photovoltaic integrated decorative and thermal insulation panel according to claim 5, characterized in that: A cavity is formed between the light-concentrating box and the base plate of the integrated panel cover.

7. The photovoltaic integrated decorative and thermal insulation panel according to claim 6, characterized in that: An insulation layer is provided on the outer bottom of the integrated panel cover.

8. The photovoltaic integrated decorative and thermal insulation panel according to claim 7, characterized in that: The electronic control component is located on the bottom plate of the integrated panel housing in the cavity position, and the electronic control component is connected to the photovoltaic cell.

9. The photovoltaic integrated decorative and thermal insulation panel according to claim 8, characterized in that: The integrated panel cover has ventilation holes on its sides and bottom.

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