Curved-surface photovoltaic tile and building with same

Abstract

The invention provides a curved-surface photovoltaic tile and a building with the same, and belongs to the technical field of photovoltaic tiles. The curved-surface photovoltaic tile comprises a photovoltaic module which comprises a power generation part and a light transmission part; a ventilation layer is formed between the shell and the photovoltaic module; and the illumination assembly is arranged in the ventilation layer, light emitted by the illumination assembly irradiates the power generation part for photoelectric conversion, and light emitted by the illumination assembly irradiates the light transmission part for brightening. The lighting assembly is arranged on the back face of the photovoltaic assembly, lighting lamplight can be emitted outwards at night through the light-transmitting part, the roof lighting effect is achieved, and the back power generation function of the photovoltaic assembly can be started for gain power generation while lighting at night is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic tiles, and in particular to a curved photovoltaic tile and a building having the same. Background Art

[0002] BIPV (Building Integrated Photovoltaic) is a technology that integrates solar power generation (photovoltaic) products into buildings. Specifically, it is a form of combining photovoltaic power generation technology with architecture, aiming to integrate solar panels into buildings as part of the building materials, rather than simply attaching them to existing structures. BIPV systems can not only provide electricity, but also replace the functions of traditional building materials, such as windproof, rainproof, and heat insulation functions of roofs, walls, windows, etc., thereby achieving multiple goals of architectural aesthetics, energy saving, and environmental protection.

[0003] Curved photovoltaic tiles are specially designed for building roofs and can directly replace traditional tiles. They not only have power generation functions, but also have architectural functions such as waterproofing and heat insulation, which embodies the core concept of BIPV technology, that is, photovoltaic modules are regarded as part of the building, not just power generation devices attached to it. The typical structural feature of curved photovoltaic tiles is that photovoltaic cells are encapsulated in curved laminated glass to ensure that the photovoltaic cells are protected from environmental influences such as ultraviolet rays, humidity, temperature changes, etc., while ensuring good light transmittance and mechanical strength to ensure the efficient operation of photovoltaic cells. The installation of curved photovoltaic tiles usually adopts a modular design, which can be laid like traditional tiles, and the installation is simple and quick. At the same time, in order to protect the efficient and safe operation of photovoltaic cells, curved photovoltaic tiles are usually equipped with junction boxes and intelligent management systems. The junction box is responsible for collecting and transmitting the electricity generated by photovoltaic tiles; the intelligent management system can monitor the power generation status, power output, environmental factors, etc. of photovoltaic tiles in real time, and realize energy management of the entire link of power generation, power storage, and power consumption through AI technology to optimize energy utilization efficiency.

[0004] However, existing curved photovoltaic tiles can only generate electricity during the day, and cannot generate electricity at night or during the day when the light is insufficient, resulting in a limited total daily power generation. In addition, building LED lighting has become part of the city lighting project, and existing curved photovoltaic tiles do not have the function of night lighting. If building lighting is to be carried out, LED lights still need to be installed on the roof like traditional building lighting projects, which will undoubtedly increase the workload of installing and wiring the overall building decoration materials. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a curved photovoltaic tile and a building having the same, so as to solve the problems of the curved photovoltaic tiles in the prior art, such as limited total daily power generation and no night lighting function.

[0006] In order to achieve the above purpose and other purposes, the present invention is implemented by including the following technical solutions: as a first aspect, the present invention proposes a curved photovoltaic tile, including a photovoltaic module, including a power generation part and a light-transmitting part; a shell, a ventilation layer is formed between the shell and the photovoltaic module; a lighting component is arranged in the ventilation layer, the light emitted by the lighting component is irradiated on the power generation part for photoelectric conversion, and the light emitted by the lighting component is irradiated on the light-transmitting part for lighting.

[0007] In one embodiment, the lighting assembly is fixed on the housing; the light emitted by the lighting assembly covers both the power generation portion and the light transmission portion.

[0008] In one embodiment, the lighting assembly is located directly below the power generation site.

[0009] In one embodiment, the power generation part is provided with a double-sided photovoltaic cell sheet, and the light-transmitting part is provided with an interlayer adhesive film; the double-sided photovoltaic cell sheet is encapsulated between two layers of transparent materials by the interlayer adhesive film.

[0010] In one embodiment, the curved photovoltaic tile further includes a heat dissipation component, which is disposed between two of the photovoltaic components and connects the ventilation layer with the external air.

[0011] In one embodiment, the heat dissipation assembly includes a ventilation portion and a clamping portion, the ventilation portion is provided with a plurality of ventilation holes, and the ventilation holes connect the ventilation layer with the external air; the clamping portion is provided at both ends of the ventilation portion and is fixedly connected to the transparent portion.

[0012] In one embodiment, the heat dissipation assembly further includes a rainproof portion, which is disposed on the outer side of the ventilation portion, and a width of the rainproof portion is not less than a width of the ventilation portion.

[0013] In one embodiment, a convex portion is formed in the middle portion of the shell toward the heat dissipation component.

[0014] In one embodiment, a waterproof cover plate is further provided on the shell, and the outer end surface of the waterproof cover plate is connected to the outer end surface of the photovoltaic module; the curved photovoltaic tile is fixedly connected to other roofing building material tiles through the mounting portion of the shell.

[0015] As a second aspect, the present invention further provides a building, comprising the curved photovoltaic tiles as described in the first aspect, wherein when the curved photovoltaic tiles are laid, the light-transmitting portion of one curved photovoltaic tile overlaps the light-transmitting portion of another curved photovoltaic tile.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets a lighting assembly on the back of the photovoltaic assembly, which can emit lighting lights outward through the light-transmitting part at night to play a role in lighting the roof, and can start the back power generation function of the photovoltaic assembly to generate power at night while achieving night lighting; 2. The light emitted by the lighting assembly of the present invention covers both the power generation part and the light transmission part, which can minimize the number of lighting assemblies and achieve the effect of energy saving and lighting; 3. The lighting assembly of the present invention is located directly below the power generation part, which can increase the light intensity of the power generation part and improve the photoelectric conversion effect on the back of the power generation part; 4. The present invention realizes double-sided power generation through double-sided photovoltaic cells, and the technology is mature and efficient; 5. The present invention is provided with a heat dissipation component, which can dissipate the heat generated by the photovoltaic component during power generation in a timely manner; 6. The design of the clamping part of the heat dissipation assembly of the present invention can ensure its stable connection with the photovoltaic assembly and avoid water leakage at the connection; 7. The design of the rainproof part of the heat dissipation assembly of the present invention can avoid the problem of rain leakage in the ventilation part; 8. The convex design on the shell of the present invention enables the ventilation layer to form a narrow and long airway near the heat dissipation component, which can use the chimney effect to dissipate the heat generated by the power generation part, thereby improving the heat dissipation capacity of the ventilation layer; 9. The design of the waterproof cover plate of the present invention can make the left and right sides of the curved photovoltaic tile overlap with other roofing building material tiles for waterproofing; 10. The design of the mounting portion of the present invention can be easily connected to other roofing building materials; 11. The present invention can achieve the maximum lighting effect and gain power generation effect by overlapping the light-transmitting parts of the curved photovoltaic tiles up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic structural diagram of a curved photovoltaic tile of the present invention.

[0018] Figure 2 Shown is a top view schematic diagram of a curved photovoltaic tile of the present invention.

[0019] Figure 3 Shown is a schematic cross-sectional view of a curved photovoltaic tile of the present invention.

[0020] Figure 4 Shown is a schematic diagram of the local structure of overlapping and laying curved photovoltaic tiles. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 4The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for the technical personnel in this field to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportion relationship or adjustment of the size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings as understood by a person of ordinary skill in the field to which the present invention belongs. The directional terms such as "upper", "lower", "left", "right", "front", "back", "inside", "outside" etc. used in the present invention are based only on the drawings of the present invention and are not specific limitations of the present invention. Similar words such as "one", "one" or "the" do not indicate a quantitative limitation, but are only used to indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The serial numbers for the components in this specification, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" mentioned in the present invention, unless otherwise specified, includes direct and indirect connections.

[0024] In order to avoid confusion with the present invention, some technical features known in the art are not described.

[0025] like Figure 1-Figure 3As shown, this embodiment provides a curved photovoltaic tile, including a photovoltaic module 10, a shell 20 and a lighting module 30. The photovoltaic module 10 includes a power generation part 11 and a light transmission part 12. Specifically, the photovoltaic module 10 is a three-layer structure, namely, two layers of transparent materials (usually glass, transparent engineering plastics, etc.) and an intermediate photovoltaic cell layer. The intermediate photovoltaic cell layer includes a double-sided photovoltaic cell sheet 111, and an interlayer adhesive film 121 that encapsulates the double-sided photovoltaic cell sheet 111 between the upper and lower layers of transparent materials. The interlayer adhesive film 121 is made of polyvinyl butyral (PVB), polyolefin elastomer (POE) or ethylene-vinyl acetate copolymer (EVA), etc., and has light transmission ability. The power generation part 11 is the area where the double-sided photovoltaic cell sheet 111 is set. The side (front) of the double-sided photovoltaic cell sheet 111 facing outward can generate electricity using sunlight during the day, and the side (back) facing inward can generate electricity through the light emitted by the lighting module 30 at night or during the day when the light is insufficient. The light-transmitting portion 12 , i.e., the area between the upper and lower layers of transparent materials where only the interlayer adhesive film 121 is disposed, can transmit the light emitted by the lighting assembly 30 to realize lighting of the roof at night.

[0026] The shell 20 is arranged on the back of the photovoltaic module 10, and a ventilation layer 13 through which air can flow is formed between the shell 20 and the photovoltaic module 10 to dissipate the heat generated by the power generation part 11 when generating electricity. In order to improve the heat dissipation effect of the ventilation layer 13, a heat dissipation component 40 can be arranged between two photovoltaic modules 10. In this embodiment, a convex portion 21 is formed in the middle of the shell 20 toward the heat dissipation component 40, and the convex portion 21 enables the ventilation layer 13 to form a narrow and long airway near the heat dissipation component 40, and the heat generated by the power generation part 11 when generating electricity can be dissipated by using the chimney effect.

[0027] The lighting component 30 is arranged in the ventilation layer 13, with its fixed end fixed on the shell 20, its light-emitting end facing the photovoltaic component 10, and the light emitted by it can cover the power generation part 11 and the light-transmitting part 12 at the same time, so as to realize the functions of night power generation and roof lighting at the same time.

[0028] like Figure 2 As shown, in this embodiment, the lighting assembly 30 is an LED light strip, which is arranged in the area directly below the power generation part 11 and is electrically connected to the junction box of the photovoltaic assembly 10 to obtain electric energy for light emission. The LED light strip is energy-saving, etc. When it is needed to emit light for night lighting, the junction box supplies power to the lighting assembly 30, and the light emitted by the lighting assembly 30 is emitted outward through the light-transmitting part 2 to decorate the roof. At the same time, the double-sided photovoltaic cell 111 of the power generation part 11 starts the back power generation function under the light of the lighting assembly 30 to generate power for gain.

[0029] In other embodiments, the lighting assembly 30 may be provided in multiple numbers on the inner side of the same photovoltaic assembly 10, and may be provided directly below the power generation part 11 at the same time, or may be provided directly below the power generation part 11 and directly below the light transmission part 12. In addition, in other embodiments, the lighting assembly 30 may also be an LED light array, and may also be provided directly below the power generation part 11 at the same time, or may be provided directly below the power generation part 11 and directly below the light transmission part 12.

[0030] Specifically, the heat dissipation assembly 40 includes a ventilation portion 41, a clamping portion 42 and a rainproof portion 43. The ventilation portion 41 is provided with a plurality of evenly distributed ventilation holes, and the ventilation holes connect the outer air of the photovoltaic assembly 10 with the ventilation layer 13. When the power generation part 11 generates electricity, heat is generated, and the hot air rises and dissipates heat outward through the ventilation holes. In this embodiment, the ventilation portion 41 has the same curvature radius as that of the photovoltaic assembly 10, which can make the overall structure more consistent and more aesthetically pleasing. In other embodiments, the curvature radius of the ventilation portion 41 and that of the photovoltaic assembly 10 may also be different. The clamping portion 42 is arranged at the left and right ends of the ventilation portion 41. In this embodiment, the clamping portion 42 is door-shaped, and the heat dissipation assembly 40 is bonded or clamped to the photovoltaic assembly 10 through the clamping portion 42. The clamping part 42 is designed as a door-shaped structure. Compared with directly fixing the ventilation part 41 on the two photovoltaic modules 10, the photovoltaic modules 10 with three layers of structure can be more stably and tightly connected to prevent rainwater from penetrating into the interior of the photovoltaic module 10 or the ventilation layer 13 from the connection. The rainproof part 43 is arranged above the ventilation part 41, and the width of the rainproof part 43 is greater than the width of the ventilation part 41, which can prevent rainwater from entering the ventilation layer 13 through the ventilation part 41 when it rains. Specifically, the rainproof part 43 is designed as an umbrella-shaped structure, that is, it includes a support member 431 arranged in the middle of the ventilation part 41, and an inclined umbrella surface 432 extending from the upper end of the support member 431 to the left and right sides. In this embodiment, the inclination angle of the inclined umbrella surface 432 is equivalent to the curvature radius of the ventilation part 41, which can make the overall structure more consistent and more beautiful. In other embodiments, the inclination angle of the inclined umbrella surface 432 may also be different from the curvature radius of the ventilation part 41. The inclined umbrella surface 432 completely covers the ventilation portion 41 to ensure that rainwater drips at the lowest ends of the left and right sides of the rainproof portion 43 and prevents rainwater from dripping into the area of ​​the ventilation portion 41 .

[0031] Furthermore, the shell 20 is connected to the photovoltaic module 10 by bonding or snapping through the L-shaped joint 22 thereon. A card slot 23 is also provided on the shell 20, and the card slot 23 is arranged on the outside of the joint 22, and the notch of the card slot 23 faces outward, which is used to snap on the waterproof cover plate 24. The curvature radius of the waterproof cover plate 24 can be equivalent to the curvature radius of the photovoltaic module 10, and the upper end surface of the waterproof cover plate 24 is arranged cocircularly with the upper end surface of the photovoltaic module 10. Further, in order to realize the fixed installation of the curved photovoltaic tile and other roofing building materials B, the shell 20 also includes a mounting portion 25, and the mounting portion 25 is formed by extending from the bottom of the slot 23 in the direction away from the ventilation layer 13, and can be connected to other roofing building materials B by screws.

[0032] Please combine Figure 4 , Figure 4 It shows a partial schematic diagram of the overlapping and laying of the curved photovoltaic tiles in a building. When the curved photovoltaic tiles are laid, the lower light-transmitting portion 12 of one curved photovoltaic tile is overlapped above the upper light-transmitting portion 12 of the curved photovoltaic tile below it, playing a role of upper and lower overlapping and waterproofing. The left and right sides of the curved photovoltaic tile are overlapped and waterproofed with other roofing building tiles through waterproof cover plates 24.

[0033] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value. The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A curved photovoltaic tile, characterized in that: include Photovoltaic modules, including power generation parts and light transmission parts; A housing, with a ventilation layer formed between the housing and the photovoltaic assembly; The lighting component is arranged in the ventilation layer, and the light emitted by it is irradiated on the power generation part for photoelectric conversion, and the light emitted by it is irradiated on the light-transmitting part for lighting.

2. The curved photovoltaic tile according to claim 1, characterized in that: The lighting assembly is fixed on the housing; the light emitted by the lighting assembly covers both the power generation part and the light transmission part.

3. The curved photovoltaic tile according to claim 2, characterized in that: The lighting assembly is located directly below the power generation site.

4. The curved photovoltaic tile according to claim 1, characterized in that: The power generation part is provided with a double-sided photovoltaic cell sheet, and the light-transmitting part is provided with an interlayer adhesive film; the double-sided photovoltaic cell sheet is encapsulated between two layers of transparent materials by the interlayer adhesive film.

5. The curved photovoltaic tile according to claim 1, characterized in that: It also includes a heat dissipation component, which is arranged between two of the photovoltaic components and connects the ventilation layer with the external air.

6. The curved photovoltaic tile according to claim 5, characterized in that: The heat dissipation component includes a ventilation part and a clamping part. The ventilation part is provided with a plurality of ventilation holes, and the ventilation holes connect the ventilation layer with the external air. The clamping part is arranged at both ends of the ventilation part and is fixedly connected to the transparent part.

7. The curved photovoltaic tile according to claim 6, characterized in that: The heat dissipation assembly further includes a rainproof portion, which is disposed on the outer side of the ventilation portion, and a width of the rainproof portion is not less than a width of the ventilation portion.

8. The curved photovoltaic tile according to claim 5, characterized in that: A convex portion is formed in the middle of the shell toward the heat dissipation assembly.

9. The curved photovoltaic tile according to claim 1, characterized in that: The shell is also provided with a waterproof cover plate, the outer end surface of which is connected with the outer end surface of the photovoltaic module; the curved photovoltaic tile is fixedly connected with other roofing building material tiles through the mounting portion of the shell.

10. A building, characterized in that: It includes the curved photovoltaic tiles as described in any one of claims 1 to 9, when the curved photovoltaic tiles are laid, the light-transmitting portion of one curved photovoltaic tile overlaps the light-transmitting portion of another curved photovoltaic tile.

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