Photovoltaic floor tile and power generation device

Abstract

The embodiment of the utility model relates to a photovoltaic floor tile and a power generation device. The photovoltaic floor tile comprises a photovoltaic module layer, a light transmitting layer and a bottom supporting layer, the photovoltaic module layer is used for absorbing solar energy and converting the absorbed solar energy into electric energy. The light-transmitting layer is arranged above the photovoltaic module layer, is used for transmitting light, and comprises a sheet-shaped main body and anti-skid patterns arranged on an upward first surface of the sheet-shaped main body. The bottom supporting layer is arranged below the photovoltaic module layer and used for supporting the photovoltaic floor tiles. Sunlight energy of solar energy is directly absorbed through the photovoltaic floor tile and converted into direct-current electric energy to achieve power generation, and the direct-current electric energy is converted into alternating-current electric energy to be applied to a power grid. And the anti-skid patterns are arranged on the light-transmitting layer, so that the friction force between the foot sole and the floor tile when a pedestrian walks is increased. According to the product, the space for laying the floor tiles is fully utilized and used for power generation, so that clean energy can be generated by laying the floor tiles, and environmental protection is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of floor tiles, and in particular to a photovoltaic floor tile and a power generation device. Background Art

[0002] Nowadays, with the development of human society, reserve energy such as oil is facing huge consumption. Therefore, how to cope with the increasingly rapid consumption of energy and find alternative clean energy has become an important goal to help human sustainable development.

[0003] Among the many clean energy sources, solar energy is currently widely used. It primarily stores the light, heat, and other energies generated when the sun shines on the ground, converting them into electricity. However, effectively absorbing solar energy is a primary challenge. Therefore, the process of absorbing solar energy requires the installation of photovoltaic panels over a large area to fully absorb the solar energy. This requires extensive photovoltaic panels, which places a strain on land resources.

[0004] Therefore, in daily life, when encountering sunny days, the sun's rays will shine on the ground for a long time. During this long period of illumination, the ground absorbs a huge amount of energy. This energy is often dissipated into the air with the arrival of night, resulting in energy waste. Therefore, if the energy absorbed by the ground during the long period of sunlight exposure can be utilized, it can be converted into clean energy such as electricity and used by humans, thus fully utilizing the energy generated by the sun.

[0005] Photovoltaic floor tiles are an innovative green energy solution, widely used in urban pedestrian walkways, landscape lighting projects, plazas, scenic areas, parks, communities, industrial parks, and rural areas. They not only convert solar energy into electricity but also incorporate energy storage systems to store excess energy for future use. Furthermore, with their anti-slip surface treatment, they offer safety, reliability, high power generation capacity, and ease of installation.

[0006] For example, in patent application number 202023244016.7, a photovoltaic floor tile is disclosed. The photovoltaic floor tile has a photovoltaic module that absorbs solar energy from the sun and converts the absorbed solar energy into electrical energy. However, in this application, the top layer of the photovoltaic floor tile is a traditional transparent top plate, which has a relatively smooth surface and is prone to slipping when wet. Utility Model Content

[0007] In order to solve or at least partially solve the above technical problems, embodiments of the present invention provide the following technical solutions.

[0008] A photovoltaic floor tile comprises a photovoltaic module layer, a light-transmitting layer, and a bottom support layer. The photovoltaic module layer absorbs solar energy and converts it into electrical energy. The light-transmitting layer is disposed above the photovoltaic module layer to allow light to pass through. The light-transmitting layer comprises a sheet-like body and an anti-slip pattern disposed on a first, upward-facing surface of the sheet-like body. The bottom support layer is disposed below the photovoltaic module layer to support the photovoltaic floor tile.

[0009] Preferably, the photovoltaic floor tile further comprises: an anti-slip coating, a first adhesive layer, and a second adhesive layer. The anti-slip coating is applied to the light-transmitting layer, the first adhesive layer is disposed between the light-transmitting layer and the photovoltaic module layer, and the second adhesive layer is disposed between the bottom support layer and the photovoltaic module layer. The light-transmitting layer and the bottom support layer are both made of tempered glass, and the photovoltaic module layer is a CdTe thin film.

[0010] Preferably, the anti-slip pattern comprises: a plurality of anti-slip units arranged on the first surface of the sheet-like body, the anti-slip units are convex or concave on the first surface, and the width of the anti-slip units first increases and then decreases along the length direction of the anti-slip units.

[0011] Preferably, the angles between two lines connecting the two end points in the width direction of the anti-slip unit and one end point in the length direction are in the range of 30° to 60°. Along the edge of the anti-slip unit, the slope of the line connecting the end point in the width direction of the anti-slip unit with each point on the path from the end point in the length direction of the anti-slip unit to the end point in the width direction of the anti-slip unit gradually decreases.

[0012] Preferably, the middle portion of the anti-slip unit protrudes toward one side away from the line connecting the two end points in the length direction; the middle portion of the anti-slip unit deviates from one side of the line connecting the two end points in the length direction of the anti-slip unit.

[0013] Preferably, the height of the protrusion or the depth of the depression of the anti-slip unit increases first and then decreases along the length direction of the anti-slip unit. The height of the highest protrusion and the depth of the deepest depression of the anti-slip unit are 1 mm.

[0014] Preferably, at least N anti-slip units are arranged in sequence along a first direction on the first surface to form an anti-slip unit group, and at least M anti-slip unit groups are arranged in sequence along a second direction on the first surface to form an anti-slip unit array. N is a natural number greater than or equal to 2, and M is a natural number greater than or equal to 2; the first direction and the second direction are perpendicular to each other.

[0015] Preferably, the anti-slip units in the same anti-slip unit group are oriented in the same direction or staggered with each other.

[0016] Preferably, adjacent anti-slip unit groups are staggered with each other in the second direction.

[0017] Preferably, the photovoltaic floor tiles further include an expansion interface and a grid connection module. The expansion interface is provided on the photovoltaic module layer, and a connector is inserted into the expansion interface to connect two adjacent photovoltaic module layers. The grid connection module is electrically connected to the photovoltaic module layer and to the power grid system. The grid connection module converts the electrical energy generated by the solar energy absorbed by the photovoltaic module layer into alternating current (AC) and transmits the AC electricity to the power grid system.

[0018] In other embodiments of the present application, a photovoltaic floor tile power generation device is also disclosed, and the photovoltaic floor tile power generation device includes:

[0019] A plurality of photovoltaic tiles as described above arranged in arrays;

[0020] The number of connectors is the same as that of the photovoltaic tiles and corresponds one to one, and the photovoltaic tiles are connected to each other through the connectors.

[0021] Compared with the prior art, the embodiments of the present invention have the following advantages:

[0022] When photovoltaic tiles are evenly laid on the ground, sunlight shines on the ground for a long time. During this time, the tiles absorb the heat released by the sunlight and convert it into electricity, fully utilizing the space occupied by the tiles and reducing the waste of land resources. The tiles also have an anti-slip coating that can withstand slopes of varying inclinations and rainy conditions, preventing pedestrians from slipping. Therefore, the tiles absorb solar energy while meeting walking safety requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The embodiments of the present invention will be described below with reference to the accompanying drawings to better understand the embodiments of the present invention. In the accompanying drawings:

[0024] Figure 1 A side view of a photovoltaic floor tile according to an embodiment of the present invention is shown;

[0025] Figure 2 A side view of a photovoltaic floor tile according to an embodiment of the present invention is shown;

[0026] Figure 3 A side view of a photovoltaic floor tile according to an embodiment of the present invention is shown;

[0027] Figure 4 A top view of a photovoltaic floor tile according to an embodiment of the present invention is shown;

[0028] Figure 5 A top view of a photovoltaic floor tile according to an embodiment of the present invention is shown;

[0029] Figure 6A top view of a photovoltaic floor tile according to an embodiment of the present invention is shown;

[0030] Figure 7 A schematic diagram showing the structure of a photovoltaic floor tile according to an embodiment of the present invention;

[0031] Figure 8 A schematic structural diagram showing an anti-skid unit according to an embodiment of the present invention;

[0032] Figure 9 A schematic structural diagram showing an anti-skid unit according to an embodiment of the present invention;

[0033] Figure 10 A top view of a photovoltaic floor tile according to an embodiment of the present invention is shown.

[0034] In the above drawings, the meanings of the reference numerals are as follows:

[0035] 1. Photovoltaic module layer; 2. Light-transmitting layer; 21. Anti-slip pattern; 211. Anti-slip unit; 3. Bottom support layer; 4. First adhesive layer; 5. Second adhesive layer. DETAILED DESCRIPTION

[0036] In the prior art, sometimes rubber anti-slip strips are laid on the surface of photovoltaic tiles, or anti-slip spacers are added at the joints between the photovoltaic tiles.

[0037] While rubber anti-slip strips applied to the surface of photovoltaic tiles offer excellent anti-slip properties, they can block light. Installing spacers between adjacent photovoltaic tiles requires space for the spacers at the joints, and mounting grooves at the edges of the tiles for the spacers. This increases system complexity and also limits the size and density of the tiles. Both approaches tend to reduce light energy utilization.

[0038] In view of this, this patent proposes a new type of photovoltaic floor tile, which can overcome the shortcomings of the above-mentioned anti-slip solution and ensure the light-receiving area of ​​the floor tile while achieving better anti-slip effect.

[0039] First embodiment

[0040] like Figure 1 、 Figure 7A photovoltaic floor tile is shown, comprising a photovoltaic module layer, a light-transmitting layer, and a bottom support layer. The photovoltaic module layer absorbs solar energy and converts it into electrical energy. The light-transmitting layer is disposed above the photovoltaic module layer to allow light to pass through. The light-transmitting layer comprises a sheet-like body and a non-slip pattern disposed on a first, upward-facing surface of the sheet-like body. The bottom support layer is disposed below the photovoltaic module layer to support the photovoltaic floor tile.

[0041] By setting the photovoltaic component layer inside the photovoltaic floor tiles, when sunlight shines on the floor tiles, the photovoltaic component layer set in the photovoltaic floor tiles can absorb the energy in the sunlight and convert it into electrical energy to achieve power generation. The light-transmitting layer is set above the photovoltaic component layer, and is the part of the photovoltaic floor tiles that is in direct contact with the external environment. The design of this layer needs to take into account multiple aspects: first, it must have good light transmittance to ensure that enough sunlight can pass through and reach the photovoltaic component layer below; secondly, as a surface that pedestrians step directly on, it also needs to have sufficient strength and wear resistance. In order to meet these requirements, optionally, the present application uses high-strength tempered glass as the main material of the light-transmitting layer. At the same time, the light-transmitting layer can also protect the photovoltaic component layer set below it. Specifically, when pedestrians walk on the photovoltaic floor tiles, they will step on the light-transmitting layer to avoid direct contact with the photovoltaic component layer.

[0042] In addition, in the design of the light-transmitting layer, anti-slip properties are an important factor that cannot be ignored. In order to ensure the safety of pedestrians, the present application designs a unique anti-slip pattern on the upper surface of the light-transmitting layer. Since the anti-slip pattern is formed by the light-transmitting layer itself, compared with the additional rubber anti-slip strips or spacers, the anti-slip pattern has little effect on the light transmission efficiency. Moreover, the anti-slip pattern on the light-transmitting layer can increase the friction between the soles of pedestrians and the light-transmitting layer. When people walk on the road paved with photovoltaic floor tiles, the risk of slipping can be reduced, thereby ensuring the safety of pedestrians. These patterns can not only increase friction and prevent pedestrians from slipping, but also disperse sunlight to a certain extent and reduce the impact of glare on pedestrians.

[0043] The design of the anti-slip pattern can take many forms. Furthermore, the bottom support layer is arranged below the photovoltaic module layer and is the foundation of the entire photovoltaic floor tile. The main function of this layer is to provide stable support for the entire structure, and it also needs to have good heat dissipation performance to maintain the working efficiency of the photovoltaic module. The material selection of the bottom support layer is also crucial. This application uses the same tempered glass material as the light-transmitting layer, which not only ensures sufficient strength, but also simplifies the production process to a certain extent. In addition, the ground where the floor tiles are laid may be used for a long time, and some groundwater will gradually penetrate. At this time, the bottom support layer can isolate the penetrated water from the photovoltaic module layer to prevent the photovoltaic module layer from being soaked in groundwater and causing damage.

[0044] like Figure 1 、 Figure 2 、 Figure 3 As shown, the photovoltaic floor tiles also include: an anti-slip coating, a first adhesive layer, and a second adhesive layer. The anti-slip coating is applied to the light-transmitting layer, the first adhesive layer is disposed between the light-transmitting layer and the photovoltaic module layer, and the second adhesive layer is disposed between the bottom support layer and the photovoltaic module layer. Both the light-transmitting layer and the bottom support layer are made of tempered glass, and the photovoltaic module layer can be a CdTe thin film.

[0045] The CdTe thin film used in photovoltaic modules boasts a high photoelectric conversion rate, typically reaching 10%-22%. This allows for the full utilization and conversion of absorbed light energy. Furthermore, CdTe thin film boasts low manufacturing costs and a simple structure, significantly improving production efficiency and reducing costs. CdTe thin film also has a lower temperature coefficient, allowing it to absorb sunlight even in high-temperature environments, thereby improving its light energy conversion rate.

[0046] In this embodiment, the anti-slip coating is applied to the upper surface of the photovoltaic floor tile's light-transmitting layer. Because the light-transmitting layer is completely exposed to the elements and subject to corrosion from wind, sun, and other factors, the anti-slip coating enhances the light-transmitting layer's wear and corrosion resistance, reduces its damage, and extends its service life.

[0047] Anti-slip coatings can utilize nanomaterial technology, such as composites of silica nanoparticles and organic polymers. These coatings offer excellent abrasion resistance and light transmittance, while also maintaining good anti-slip properties in wet conditions. Another option is a polyurethane coating with a microscopic concave-convex structure. This coating is not only anti-slip but also self-cleaning, reducing routine maintenance.

[0048] In addition, the first adhesive layer and the second adhesive layer can both connect the light-transmitting layer and the bottom supporting layer from the top and bottom of the photovoltaic module layer, respectively, and form a whole. More specifically, the first adhesive layer and the second adhesive layer can use PVB layer as an adhesive. Since the photovoltaic module layer needs to absorb sunlight that passes through the light-transmitting layer and convert the absorbed solar energy into electrical energy, PVB contains hydroxyl, acetyl and aldehyde groups, and has high adhesion to materials such as glass, and can firmly connect the light-transmitting layer and the photovoltaic module layer. The PVB layer has high transparency. When the PVB layer bonds the photovoltaic module layer to the light-transmitting layer, it is not easy to affect the amount of sunlight absorbed by the photovoltaic module layer. In addition, the PVB layer has good impact resistance. When pedestrians walk on the photovoltaic floor tiles, the PVB layer can absorb the pressure of the human body on the floor tiles during walking, thereby protecting the photovoltaic module layer located between the first adhesive layer and the second adhesive layer from vibration and impact during walking.

[0049] At the same time, during the use of photovoltaic floor tiles, the light-transmitting layer may sometimes break due to excessive external impact. The first adhesive layer made of PVB layer can retain the broken light-transmitting layer on the PVB layer as much as possible, preventing the broken light-transmitting layer fragments from scattering around.

[0050] Second embodiment

[0051] On rainy days or when there is standing water, the tile surface may become more slippery.

[0052] In view of this, in the second embodiment, if Figure 4 、 Figure 5 、 Figure 6 As shown, the anti-slip pattern includes: a plurality of anti-slip units arranged on the first surface of the sheet-like body, the anti-slip units are convex or concave on the first surface, and the width of the anti-slip units first increases and then decreases along the length direction of the anti-slip units.

[0053] When photovoltaic tiles are equipped with anti-slip elements, the raised elements on the sheet-like body can directly contact the soles of pedestrians' shoes, while the recessed elements can cause the shoe soles to sink and engage with the texture, thereby increasing the friction between the pedestrian's foot and the photovoltaic tiles. In other words, the installation of multiple anti-slip elements increases the roughness of the tile surface and improves the coefficient of friction.

[0054] Furthermore, the unique shape of the anti-slip element in this embodiment not only enhances the anti-slip effect but also cleverly balances anti-slip performance and light transmittance. The raised or recessed design provides the anti-slip element with a three-dimensional structure, further enhancing the anti-slip effect. This design also disperses incident light to a certain extent, reducing glare and improving viewer comfort.

[0055] As long as the anti-slip unit's width first increases and then decreases along its length, the anti-slip unit can be configured in a variety of shapes, including crescent, diamond, and elliptical. These shapes offer many advantages. For example, elliptical and diamond-shaped anti-slip units have a larger contact area perpendicular to their length, generating greater friction in that direction, thereby enhancing the directional anti-slip effect.

[0056] Photovoltaic floor tiles accumulate dust during daily use due to exposure to wind and sun. Excessive dust can affect the friction between the soles of shoes and the light-transmitting layer. Angles in the anti-slip elements can also cause dust to accumulate, making it difficult to clean. Oval anti-slip patterns, with their lack of sharp corners, prevent dust from lingering for long periods of time, regardless of whether they are recessed or convex. This prevents and reduces the accumulation of dirt and debris, making rinsing and cleaning photovoltaic floor tiles more convenient and efficient.

[0057] Overall, the anti-slip pattern design proposed in this application provides an innovative solution for photovoltaic floor tiles. It cleverly balances safety and power generation efficiency, making photovoltaic floor tiles more suitable for use in various public spaces. This design not only improves the practicality of photovoltaic floor tiles but also opens up new possibilities for the application of renewable energy in cities.

[0058] Furthermore, the angles between two lines connecting the two end points in the width direction of the anti-slip unit and one end point in the length direction are in the range of 30° to 60°. Along the edge of the anti-slip unit, the slope of the line connecting the end point in the width direction of the anti-slip unit with each point on the path from the end point in the length direction of the anti-slip unit to the end point in the width direction of the anti-slip unit gradually decreases.

[0059] By controlling the two endpoint references Figure 8 and Figure 9 The angles between the two lines connecting the two endpoints A and B and one of the endpoints C in the length direction can control the ratio between the length and width of the anti-slip unit. This can form a narrow and long shape similar to a diamond or an ellipse. Figure 8 In the example, the distance between endpoints A and B is small. At this time, the angle between the lines connecting endpoints A and B and endpoint C is small, forming a long and narrow elliptical shape. Such long and narrow anti-slip units can be set to a higher density, thus having a better anti-slip effect. Figure 9 The distance between the two endpoints A and B is small. At this time, the angle between the two endpoints A and B and the line connecting C increases. At this time, the anti-slip unit will form a wider ellipse. The density of such anti-slip units is relatively low, and the anti-slip effect is relatively worse, but it is not easy to cause dirt accumulation.

[0060] In summary, if the angle is too small, the anti-slip unit will become slender, which may easily accumulate dirt and affect light transmittance. Conversely, if the angle is too large, it will be difficult to provide sufficient friction. Therefore, setting the angle within the range of 30° to 60° can achieve a good balance between these two factors.

[0061] Third embodiment

[0062] In a second embodiment, the present application discloses a photovoltaic floor tile using anti-skid units similar to diamond or ellipse. When using such anti-skid units, it can cope with most road conditions.

[0063] The inventors of the present application have discovered that, when targeting a slope section, the anti-skid unit needs to be improved to enhance its anti-skid effect in a specific direction of the slope section.

[0064] In view of this, the middle portion of the anti-slip unit protrudes toward one side away from the line connecting the two end points in the length direction; the middle portion of the anti-slip unit deviates from one side of the line connecting the two end points in the length direction of the anti-slip unit.

[0065] The anti-slip unit on the photovoltaic floor tiles can be adjusted according to the needs of the tile laying location. For example, the surface of the photovoltaic floor tiles laid on some slopes can be adjusted according to the needs of the tile laying location. Figure 6 Crescent-shaped anti-slip unit shown.

[0066] Obviously, the anti-skid effect of the crescent-shaped anti-skid unit in its length direction is weaker than that in its width direction. Moreover, even in its width direction, the anti-skid effect in the direction of the recessed part is stronger than the anti-skid effect in the convex direction. Specifically, the edge of the crescent-shaped recessed part provides more contact boundaries with the friction lines of the sole, and the shape of the recessed part is opposite to the movement direction of the sole. Under the same pressure, the direction of the crescent-shaped recess can provide greater static friction. Therefore, the recessed part of the crescent-shaped anti-skid unit can be directed towards the uphill direction of the slope, so that the best anti-skid performance can be used to deal with the most slipping situation when going downhill. Suboptimal anti-skid performance is used to provide sufficient friction for people going uphill.

[0067] Furthermore, the height of the protrusion or the depth of the depression of the anti-slip unit increases first and then decreases along the length direction of the anti-slip unit. The height of the highest protrusion and the depth of the deepest depression of the anti-slip unit are 1 mm.

[0068] During daily use, the depressions or protrusions of the anti-slip elements inevitably cause water, mud, and other impurities to accumulate on the surface of the photovoltaic tiles, potentially affecting light transmittance. In this embodiment, by varying the depths of the depressions and protrusions of individual anti-slip elements, the two sides of the depressions or protrusions of the anti-slip elements are provided with inclined surfaces. These inclined surfaces make it easier to sweep away liquids and impurities when cleaning the photovoltaic tiles, thereby improving cleaning efficiency.

[0069] By increasing the contact area with the pedestrian's shoe sole, the anti-slip unit can provide greater friction. However, if the protrusions and depressions of the anti-slip unit are too large, it can easily reduce walking comfort. When the maximum depression and protrusion are set to around 1mm, it can match the depth of the sole tread of most shoes and ensure comfort.

[0070] In another embodiment, referring to Figure 10The anti-slip unit can be designed into an asymmetric S-shape. The middle part of the S-shape protrudes to one side by about 0.7 mm, and the whole part slightly deviates from the line connecting the two end points. This design not only provides a good anti-slip effect, but also generates multi-directional friction when pedestrians step on it. The anti-slip unit design of this application plays an important role in solving the anti-slip problem. First, the protruding middle part design increases the contact area with the sole of the shoe and improves the static friction, which is very important for preventing initial slipping. Second, the design of the middle part deviating from the straight line creates multi-directional friction, which helps prevent slipping in all directions, especially when pedestrians turn or stop suddenly. In addition, this design is also conducive to drainage, reducing the risk of slipping in wet and slippery environments. Compared with traditional linear anti-slip units, the design of this application has obvious advantages. It not only improves the anti-slip effect, but also increases the directionality of anti-slip, so that photovoltaic floor tiles can maintain good anti-slip performance in various weather conditions and usage scenarios. At the same time, this design does not significantly increase the manufacturing difficulty and can be implemented based on existing production processes.

[0071] In general, the anti-slip unit design proposed in this application plays different roles in different environments through a variety of clever shape combinations, effectively improving the overall anti-slip performance of the site where photovoltaic floor tiles are laid.

[0072] At the same time, reference Figure 4 As shown, at least N anti-slip units are arranged in sequence along a first direction on the first surface to form an anti-slip unit group, and at least M anti-slip unit groups are arranged in sequence along a second direction on the first surface to form an anti-slip unit array. N is a natural number greater than or equal to 2, and M is a natural number greater than or equal to 2; the first direction and the second direction are perpendicular to each other.

[0073] When walking on a road paved with photovoltaic tiles, pedestrians' feet will not be perfectly centered on the tiles, but will randomly step on any of them. Anti-slip elements arranged along the first and second directions cover the upper surface of the light-transmitting layer, providing all-around anti-slip protection. Regardless of the direction a pedestrian walks, they will always encounter the appropriate anti-slip structure.

[0074] Furthermore, when photovoltaic tiles are used, multiple tiles are laid close together, and pedestrians walk from one tile to another. Therefore, the use of this type of anti-slip unit laying method can also make the anti-slip units on two adjacent photovoltaic tiles compatible with each other, ensuring that pedestrians have anti-slip units under their feet to provide friction when walking on the road surface paved with photovoltaic tiles.

[0075] In practice, the specific values ​​of N and M can be flexibly adjusted based on the size of the tile and the intended environment. For example, for larger tiles, larger N and M values ​​can be selected to ensure adequate anti-slip coverage across the entire surface. For smaller tiles, N and M values ​​can be appropriately reduced to avoid overcrowding of anti-slip elements that could affect aesthetics or light transmission.

[0076] Furthermore, by adjusting the values ​​of N and M, as well as the design of the anti-slip units themselves, customized solutions can be provided for different application scenarios. For example, in public places with high traffic, the values ​​of N and M can be increased to increase the density of the anti-slip units; while in areas with high landscaping requirements, the values ​​of N and M can be appropriately reduced to make the arrangement of anti-slip units more sparse, thereby reducing the impact on the overall visual effect.

[0077] As a further improvement of this embodiment, Figure 5 As shown, the anti-slip units in the same anti-slip unit group are oriented in the same direction or staggered with each other.

[0078] When the anti-slip units are oriented in the same direction, the entire group creates a unified visual effect. This arrangement is suitable for scenarios where directionality needs to be emphasized, such as on sidewalks or bike paths, where the consistent orientation of the anti-slip units can indicate the direction of travel. Furthermore, the same orientation of the anti-slip units creates a continuous texture, creating a neat and orderly visual effect when laid over a large area.

[0079] On the other hand, staggering the orientation of the anti-slip units creates a more complex texture. This arrangement increases friction and provides a better anti-slip effect. The staggered arrangement also creates a shifting light and shadow effect at different angles, adding visual interest to the floor. Furthermore, the staggered arrangement helps distribute pressure from footsteps, extending the lifespan of the tiles.

[0080] At the same time, adjacent anti-slip unit groups are staggered with each other in the second direction.

[0081] Since pedestrians have different walking directions when walking on a tiled road, and in most cases, there are at least two walking directions on the same road, the anti-slip units that are staggered up and down can adapt to pedestrians walking in different directions to meet the needs of daily walking.

[0082] More specifically, refer to Figure 5As shown, the anti-slip cells in each anti-slip unit group form a herringbone pattern with those in adjacent groups. This herringbone pattern provides better grip for shoes, especially in slippery weather, reducing the risk of slipping. Furthermore, the staggered arrangement of the anti-slip units more evenly distributes pedestrian weight, reducing localized pressure and extending the lifespan of the tiles. Furthermore, this design can also reduce water accumulation on the tile surface, as the staggered anti-slip units create micro-drainage channels that help water dissipate quickly. Furthermore, from a light utilization perspective, the staggered arrangement of the anti-slip units reduces the likelihood of direct light reflection. When sunlight strikes the tile surface at different angles, the staggered arrangement of the anti-slip units effectively disperses and refracts the light, allowing more light to penetrate the light-transmitting layer and reach the photovoltaic module layer below. This not only improves photovoltaic conversion efficiency but also reduces glare on the ground, enhancing pedestrian comfort.

[0083] In practical applications, this design of the present application can have many variations. For example, the degree of staggering can be adjusted according to different application scenarios. In areas requiring higher anti-slip performance, such as ramps or humid environments, the degree of staggering can be increased to increase the overlap between anti-slip unit groups. In areas with poor lighting conditions, the degree of staggering can be appropriately reduced to optimize light transmittance.

[0084] Fourth embodiment

[0085] In the process of power generation, sufficient photovoltaic tiles need to be laid to absorb solar energy to generate enough electricity. The electricity generated by photovoltaic tiles is direct current, while ordinary power plants produce alternating current. Therefore, the electricity generated by photovoltaic tiles cannot be directly used for daily residential electricity consumption.

[0086] To this end, the photovoltaic floor tiles also include an expansion interface and a grid connection module. The expansion interface is located on the photovoltaic module layer, allowing a connector to be inserted into the expansion interface to connect two adjacent photovoltaic module layers. The grid connection module is electrically connected to the photovoltaic module layer and to the power grid. The grid connection module converts the solar energy generated by the photovoltaic module layer into AC power and transmits the AC power to the power grid.

[0087] Multiple photovoltaic tiles require reference Figure 7As shown, it is laid on a preset ground. In order to make the laying direction of the photovoltaic floor tiles more uniform, tracks can be added to fix the laying direction of the photovoltaic floor tiles. The expansion interface can connect two adjacent photovoltaic floor tiles in series. By connecting the laid photovoltaic floor tiles in series, a huge solar energy absorption and conversion floor tile can be formed, and the absorbed solar energy can be converted into electrical energy for use. Specifically, a current detection module can be set at the expansion interface of each photovoltaic floor tile. Since the electricity generated by each photovoltaic floor tile is direct current, and the adjacent photovoltaic floor tiles are interconnected, the current detection module located at each expansion interface can detect the magnitude of the current passing through. When a photovoltaic floor tile is damaged, the current detection module can feedback information to facilitate the identification of the faulty floor tile and reduce the difficulty of repairing the photovoltaic floor tile. The grid connection module can convert the direct current generated by each photovoltaic floor tile into alternating current and directly transmit it to the grid, simplifying the steps of converting direct current into alternating current in the grid system and improving the power supply efficiency.

[0088] Fifth embodiment

[0089] In other embodiments of the present application, a photovoltaic floor tile power generation device is also disclosed, and the photovoltaic floor tile power generation device includes:

[0090] The photovoltaic tiles are arranged in a plurality of arrays. The number of connectors is the same as the number of photovoltaic tiles and corresponds to each other. The photovoltaic tiles are connected to each other through the connectors.

[0091] Connectors connect the individual photovoltaic tiles together so that the electricity generated by all the tiles can be fed into the grid. Specifically, the connectors used are MC4. MC4 connectors enable efficient and secure power transmission between solar panels, inverters, and other photovoltaic components, ensuring optimal solar installation performance. Furthermore, MC4 connectors are designed to be plug-and-play, making installation quick and easy, reducing installation time and complexity. MC4 connectors are weather-resistant, resistant to UV rays, moisture, and extreme temperature fluctuations, making them suitable for long-term outdoor use. MC4 connectors are also waterproof, typically achieving an IP67 or higher rating, ensuring reliability in harsh environments. Finally, MC4 connectors are terminated with a notched interlocking device to prevent the cables from being accidentally pulled apart, requiring special tools to disconnect in some cases. To accommodate some DC power usage scenarios, in some embodiments, the photovoltaic tile power generation device also includes an energy storage battery that can store the DC power generated by the photovoltaic tiles and directly release the stored DC power when a DC power usage scenario is required.

[0092] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A photovoltaic floor tile, characterized in that: The photovoltaic floor tiles include: A photovoltaic module layer for absorbing solar energy and converting the absorbed solar energy into electrical energy; a light-transmitting layer, disposed above the photovoltaic module layer and configured to allow light to pass through, the light-transmitting layer comprising a sheet-like body and an anti-slip pattern disposed on an upward first surface of the sheet-like body; A bottom support layer, disposed below the photovoltaic module layer, for supporting the photovoltaic floor tiles; The anti-slip pattern includes: a plurality of anti-slip units provided on the first surface of the sheet-like body; The anti-slip unit is protruding or recessed on the first surface, and the width of the anti-slip unit first increases and then decreases along the length direction of the anti-slip unit.

2. The photovoltaic floor tile according to claim 1, characterized in that: The photovoltaic floor tiles also include: an anti-slip coating layer, coated on the light-transmitting layer; a first adhesive layer, disposed between the light-transmitting layer and the photovoltaic module layer; a second adhesive layer, disposed between the bottom support layer and the photovoltaic module layer; The light-transmitting layer and the bottom supporting layer are both made of tempered glass; The photovoltaic component layer is a CdTe thin film.

3. The photovoltaic floor tile according to claim 1, characterized in that: The angles between the two lines connecting the two end points in the width direction of the anti-slip unit and one end point in the length direction are in the range of 30° to 60°; Along the edge of the anti-slip unit, the slope of the line connecting each point on the path from one end point of the anti-slip unit in the length direction to the end point of the anti-slip unit in the width direction and the end point of the anti-slip unit in the width direction gradually decreases.

4. The photovoltaic floor tile according to claim 1, characterized in that: The middle portion of the anti-slip unit protrudes toward a side away from a line connecting the two end points in the length direction; The middle portion of the anti-slip unit deviates from one side of a line connecting two end points in a length direction of the anti-slip unit.

5. The photovoltaic floor tile according to claim 1, characterized in that: The protrusion height or the depression depth of the anti-slip unit first increases and then decreases along the length direction of the anti-slip unit; The height of the highest point of the protrusion of the anti-slip unit and the depth of the deepest point of the depression are 1 mm.

6. The photovoltaic floor tile according to any one of claims 1 to 5, characterized in that: At least N of the anti-slip units are sequentially arranged along a first direction on the first surface to form an anti-slip unit group, and at least M of the anti-slip unit groups are sequentially arranged along a second direction on the first surface to form an anti-slip unit array; Wherein, N is a natural number greater than or equal to 2, M is a natural number greater than or equal to 2; and the first direction and the second direction are perpendicular to each other.

7. The photovoltaic floor tile according to claim 6, characterized in that: The anti-slip units in the same anti-slip unit group are oriented in the same direction or staggered with each other.

8. The photovoltaic floor tile according to claim 6, characterized in that: Adjacent anti-slip unit groups are staggered with each other in the second direction.

9. The photovoltaic floor tile according to claim 1, characterized in that: The photovoltaic floor tiles also include: An expansion interface, provided on the photovoltaic component layer, for inserting a connector into the expansion interface to connect two adjacent photovoltaic component layers; The grid connection module is electrically connected to the photovoltaic component layer and the grid system. The grid connection module converts the electrical energy generated by the photovoltaic component layer absorbing solar energy into alternating current and transmits the alternating current to the grid system.

10. A photovoltaic floor tile power generation device, characterized in that: include: A plurality of photovoltaic tiles according to any one of claims 1 to 9 arranged in an array; The number of connectors is the same as and corresponds to the photovoltaic floor tiles, and the photovoltaic floor tiles are connected to each other through the connectors.

Images