Photovoltaic and photo-thermal integrated PVT assembly

Abstract

A photovoltaic and photo-thermal integrated PVT assembly comprises a photovoltaic panel, a flexible heat collection assembly is arranged on the back face of the photovoltaic panel, a circle of frame is arranged on the edge of the back face of the photovoltaic panel, and the portion, in the frame, of the back face of the flexible heat collection assembly is filled with a foaming heat preservation layer. The flexible heat collection assembly comprises a heat collection assembly inner layer and a heat collection assembly mold pressing outer layer, a plurality of long-strip-shaped protruding parts are arranged on the heat collection assembly mold pressing outer layer in a hot pressing mode, and the peripheral edges of the heat collection assembly inner layer and the heat collection assembly mold pressing outer layer and the sides of the protruding parts are connected in a high-frequency heat sealing mode. More than two water pipe connectors are arranged on the back face of the heat collection assembly mould pressing outer layer in a heat sealing mode, and flow channels connected with the water pipe connectors are formed among the long-strip-shaped protruding part, the heat collection assembly inner layer and the heat sealing connecting part. The solar heat collector is light, convenient, beneficial to construction, installation and transportation, more corrosion-resistant, safer, good in heat collection effect and lower in production cost, the service life of the assembly is longer, and the selling price of finished products can be greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, and in particular to a photovoltaic-thermal integrated PVT component. Background Art

[0002] The photovoltaic-thermal (PVT) system is a highly efficient and comprehensive utilization technology of solar energy, which realizes the dual utilization of solar photovoltaic and thermal energy. Compared with the photovoltaic solar panel (PV) system on the market, which simply converts solar radiation into electrical energy, the photovoltaic-thermal (PVT) system can not only generate electricity, but also heat water to provide hot water or heating, realizing the dual utilization of energy. In addition, it uses the photothermal exchange technology to effectively reduce the working temperature of photovoltaic cells, thereby improving their power generation efficiency. It has great potential and development prospects.

[0003] At present, some photovoltaic thermal integration (PVT) components have appeared in the domestic and foreign markets. These photovoltaic thermal integration components are made of various metal materials, with high production costs, heavy product weight, not light enough, and high finished product prices, making it difficult to reduce the cost of the entire photovoltaic thermal networking system.

[0004] Based on the above problems, there is an urgent need in the prior art for a photovoltaic-thermal integrated PVT component that is lower in cost, lighter, and easier to install and transport. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a photovoltaic-thermal integrated PVT component which is lower in cost, lighter in weight, and easier to install and transport.

[0006] The purpose of the utility model is achieved through the following technical solutions: a photovoltaic-thermal integrated PVT component, comprising a photovoltaic panel, a flexible heat collecting component is arranged on the back of the photovoltaic panel, a circle of frame is arranged on the back edge of the photovoltaic panel, a foam insulation layer is filled in the frame on the back of the flexible heat collecting component, the flexible heat collecting component comprises a heat collecting component inner layer and a heat collecting component molded outer layer, the heat collecting component molded outer layer is hot-pressed with a plurality of long strips of protrusions, the heat collecting component inner layer is connected to the edges around the molded outer layer of the heat collecting component and the sides of the protrusions by high-frequency heat sealing, the back of the molded outer layer of the heat collecting component is heat-sealed with more than two water pipe joints, and a flow channel connected to these water pipe joints is formed between the long strips of protrusions, the heat collecting component inner layer and the heat-sealed connection.

[0007] A mesh cloth layer is arranged on the back side of the molded outer layer of the heat collecting component, and the mesh cloth layer is glued to the back side of the raised portion.

[0008] Four water pipe joints are heat-sealed at the four corners of the back side of the molded outer layer of the heat collecting component, and the left and right edges of the flexible heat collecting component are respectively provided with left and right vertical main channels, and the flexible heat collecting component is provided with a plurality of mutually parallel horizontal branch channels connected between the two main channels.

[0009] The photovoltaic panel is connected to the flexible heat collection assembly via an adhesive layer.

[0010] A layer of plastic sealing film is arranged on the back of the frame.

[0011] A prestressed strip is arranged on the back of the plastic sealing film, and the left and right ends of the prestressed strip are connected to the frame through fixing screws.

[0012] The back side of the plastic sealing film is provided with an electric wire outlet.

[0013] The beneficial effects of the utility model are: the utility model is light, convenient for construction, installation and transportation, more corrosion-resistant, longer component life, safe, good heat collection effect, lower production cost, and can greatly reduce the selling price of finished products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the back structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the working principle of the flexible heat collection component;

[0016] Figure 3 It is a structural schematic diagram of the cooperation between the flexible heat collection component and the photovoltaic panel;

[0017] Figure 4 yes Figure 2 A schematic diagram of the local cross-sectional structure along the AA direction;

[0018] Figure 5 yes Figure 1 A schematic diagram of a local cross-sectional structure along the BB direction;

[0019] Figure 6 yes Figure 1 A schematic diagram of the local cross-sectional structure along the CC direction;

[0020] Figure 7 yes Figure 3 Schematic diagram of the local cross-sectional structure along the DD direction.

[0021] In the figure: 1-photovoltaic panel; 2-frame; 3-adhesive layer; 4-flexible solar collector; 5-inner layer of solar collector; 6-molded outer layer of solar collector; 7-flow channel; 8-heat-sealed connection; 9-foam insulation layer; 10-plastic sealing film; 11-prestressed pressure strip; 12-fixing screw; 13-water pipe joint; 14-wire outlet; 15-main flow channel; 16-dividing flow channel; 17-raised part; 18-mesh cloth layer. DETAILED DESCRIPTION

[0022] The utility model is described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-Figure 7 As shown, a photovoltaic-thermal integrated PVT component includes a photovoltaic panel 1, a flexible heat collecting component 4 is arranged on the back of the photovoltaic panel 1, a circle of frame 2 is arranged on the back edge of the photovoltaic panel 1, and a foam insulation layer 9 is filled in the frame 2 on the back of the flexible heat collecting component 4. The flexible heat collecting component 4 includes a heat collecting component inner layer 5 and a heat collecting component molded outer layer 6, and the heat collecting component molded outer layer 6 is hot-pressed with a plurality of long strip-shaped protrusions 17. The heat collecting component inner layer 5 and the surrounding edges of the heat collecting component molded outer layer 6 and the sides of the protrusions 17 are connected by high-frequency heat sealing, and the back of the molded outer layer 6 of the heat collecting component is heat-sealed with more than two water pipe joints 13, and a flow channel 7 connected to these water pipe joints 13 is formed between the long strip-shaped protrusions 17, the heat collecting component inner layer 5 and the heat-sealed connection part 8.

[0024] The inner layer 5 of the heat collecting component and the molded outer layer 6 of the heat collecting component are made of HDPE, PVC, PE polymer flexible materials. During production, the molded outer layer 6 of the heat collecting component is hot-pressed to form a plurality of long strip-shaped protrusions 17, and then the water pipe joint 13 is high-frequency heat-sealed on the molded outer layer 6 of the heat collecting component. After that, the molded outer layer 6 of the heat collecting component is high-frequency heat-sealed with the inner layer 5 of the same-sized plane heat collecting component to form a fully enclosed flexible heat collecting component 4. The edges of the inner layer 5 of the heat collecting component and the molded outer layer 6 of the heat collecting component and the sides of the protrusions 17 are high-frequency heat-sealed to form a plurality of heat-sealed connection parts 8, and the protrusions 17 form the flow channel 7.

[0025] like Figure 6 As shown, a mesh cloth layer 18 is provided on the back of the molded outer layer 6 of the heat collecting assembly, and the mesh cloth layer 18 is glued to the back of the ridge 17. The mesh cloth layer 18 has the function of preventing cracking and increasing the overall strength, and can effectively prevent the foam insulation layer 9 from separating from the flexible heat collecting assembly 4.

[0026] See also Figure 2 Four water pipe joints 13 are heat-sealed at the four corners of the back side of the molded outer layer 6 of the heat collecting component. The left and right edges of the flexible heat collecting component 4 are respectively provided with left and right vertical main channels 15. The flexible heat collecting component 4 is provided with a plurality of mutually parallel horizontal branch channels 16 connected between the two main channels 15.

[0027] See also Figure 5 , Figure 7 The photovoltaic panel 1 and the flexible thermal collection component 4 are connected by an adhesive layer 3, and the two are glued together to convert the solar radiation that passes through the photovoltaic panel 1 and reaches the flexible thermal collection component 4 into thermal energy to heat the liquid in the flexible thermal collection component 4. The liquid continuously enters the utility model through the water pipe joint 13, and after being heated, it is output from the utility model through the water pipe joint 13 for hot water supply or heating.

[0028] like Figure 1 , Figure 6 , Figure 7 As shown, a plastic sealing film 10 is provided on the back of the frame 2. Figure 1 , Figure 6 The back of the plastic sealing film 10 is provided with a prestressed pressure strip 11, and the left and right ends of the prestressed pressure strip 11 are connected to the frame 2 by fixing screws 12. The prestressed pressure strip 11 is an arc-shaped long strip structure bent inward, which presses the flexible heat collection component 4, the foam insulation layer 9 and the plastic sealing film 10 inward. Figure 1 A wire outlet 14 is provided on the back side of the plastic sealing film 10 .

[0029] During processing, the front side of the flexible heat collecting component 4 is glued to the back side of the photovoltaic panel 1 with glue. After the glue solidifies, the flexible heat collecting component 4 is first inflated and shaped through the water pipe joint 13, and a large-mesh mesh cloth layer 18 is arranged on the back side of the flexible heat collecting component 4, and the mesh cloth layer 18 is glued to the back side of the raised portion 17 of the molded outer layer 6 of the heat collecting component, and then the foamed insulation material is blown between the flexible heat collecting component 4 and the frame 2 to fix and seal, and part of the foamed insulation material passes through the mesh of the mesh cloth layer 18 and enters the gap between the mesh cloth layer 18 and the molded outer layer 6 of the heat collecting component, so that the flexible heat collecting component 4, the mesh cloth layer 18 and the foamed insulation material form a whole, and then a layer of plastic sealing film 10 is glued to the back side of the frame 2, and finally a prestressed strip 11 is arranged on the back side of the plastic sealing film 10, and the left and right ends of the prestressed strip 11 are connected to the frame 2 by fixing screws 12. After processing, the shaped foam insulation layer 9 becomes the reinforcing rib of the flexible heat collecting assembly 4 to prevent the flexible heat collecting assembly 4 from being deformed after water injection.

[0030] The utility model not only does not affect the normal power generation of the photovoltaic panel 1, but also can heat water to provide hot water or heating, thereby realizing the dual utilization of energy. Moreover, it utilizes the light-heat exchange technology to effectively reduce the working temperature of the photovoltaic cell, thereby improving its power generation efficiency.

[0031] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. A photovoltaic-thermal integrated PVT assembly, comprising a photovoltaic panel, characterized in that: A flexible heat collecting assembly is arranged on the back of the photovoltaic panel, a circle frame is arranged on the back edge of the photovoltaic panel, a foam insulation layer is filled in the frame on the back of the flexible heat collecting assembly, the flexible heat collecting assembly comprises a heat collecting assembly inner layer and a heat collecting assembly molded outer layer, the heat collecting assembly molded outer layer is hot pressed with a plurality of long strip-shaped protrusions, the heat collecting assembly inner layer is connected to the edges around the molded outer layer of the heat collecting assembly and the sides of the protrusions by high-frequency heat sealing, more than two water pipe joints are heat-sealed on the back of the molded outer layer of the heat collecting assembly, and flow channels connected to these water pipe joints are formed between the long strip-shaped protrusions, the heat collecting assembly inner layer and the heat-sealed connection.

2. The photovoltaic-thermal integrated PVT assembly according to claim 1, characterized in that: A mesh cloth layer is arranged on the back side of the molded outer layer of the heat collecting component, and the mesh cloth layer is glued to the back side of the raised portion.

3. The photovoltaic-thermal integrated PVT assembly according to claim 2, characterized in that: Four water pipe joints are heat-sealed at the four corners of the back side of the molded outer layer of the heat collecting component, and the left and right edges of the flexible heat collecting component are respectively provided with left and right vertical main channels, and the flexible heat collecting component is provided with a plurality of mutually parallel horizontal branch channels connected between the two main channels.

4. The photovoltaic-thermal integrated PVT assembly according to claim 3, characterized in that: The photovoltaic panel is connected to the flexible heat collection assembly via an adhesive layer.

5. The photovoltaic-thermal integrated PVT assembly according to claim 4, characterized in that: A layer of plastic sealing film is arranged on the back of the frame.

6. The photovoltaic-thermal integrated PVT assembly according to claim 5, characterized in that: A prestressed strip is arranged on the back of the plastic sealing film, and the left and right ends of the prestressed strip are connected to the frame through fixing screws.

7. The photovoltaic-thermal integrated PVT assembly according to claim 6, characterized in that: The back side of the plastic sealing film is provided with an electric wire outlet.

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