Luminescent photovoltaic tile
By introducing a light-emitting layer and a switching mechanism into the photovoltaic tile, a multi-functional design is achieved, enabling the photovoltaic tile to generate electricity during the day and emit light at night. This solves the problem of the photovoltaic tile having only one function and enhances its adaptability and aesthetic appeal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-10
- Publication Date
- 2026-04-10
AI Technical Summary
Existing photovoltaic tiles are designed to match architectural style, have limited functionality, and can only generate electricity during the day, making them unsuitable for various application scenarios.
Design a light-emitting photovoltaic tile comprising a first tempered glass layer, a light-emitting layer, a photovoltaic cell layer, and a second tempered glass layer stacked sequentially from the sun-facing side to the shaded side, and connecting the light-emitting layer to an external power source through a switch, junction box, and control module, thus enabling it to emit light.
This technology enables photovoltaic tiles to generate electricity during the day and emit light at night, enhancing their aesthetic appeal and making them suitable for various applications.
Smart Images
Figure CN224111101U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of solar photovoltaic applications, and in particular to a light-emitting photovoltaic tile. BACKGROUND
[0002] The photovoltaic tile is a new type of building material combined with photovoltaic power generation equipment, which integrates photovoltaic power generation technology and the functions of traditional roof tiles, and has multiple functions such as power generation, wind and rain shielding, heat insulation, and the like. The appearance of the photovoltaic tile can be designed in various styles, and can be well integrated with various architectural styles. Whether it is a traditional Chinese-style building, a European-style building, or a modern building, a photovoltaic tile style that matches it can be found. However, the structural design of the photovoltaic tile in the related art only focuses on matching the appearance with various architectural styles, and can only generate power during the day, resulting in a single function of the photovoltaic tile and poor adaptation to multiple scene applications. SUMMARY
[0003] The embodiment of the present application provides a light-emitting photovoltaic tile, which can solve the problem that the structural design of the photovoltaic tile in the related art only focuses on matching the appearance with various architectural styles, and can only generate power during the day, resulting in a single function of the photovoltaic tile and poor adaptation to multiple scene applications.
[0004] The embodiment of the present application provides a light-emitting photovoltaic tile; the light-emitting photovoltaic tile comprises a first tempered glass layer, a light-emitting layer, a photovoltaic cell piece layer and a second tempered glass layer which are sequentially stacked from a sun-facing side to a sun-shielding side, and the light-emitting photovoltaic tile further comprises a junction box and a control module, the junction box is arranged on the second tempered glass layer, and the junction box is used for connecting an external power supply; the control module comprises a switch, the light-emitting layer is electrically connected with the junction box through the switch, and the switch has a first conduction state; in the first conduction state, the light-emitting layer, the switch and the junction box form a conduction loop, and the external power supply can supply power to the light-emitting layer.
[0005] Based on the light-emitting photovoltaic tile of the embodiment of the present application, by designing the switch, the light-emitting layer, the junction box and the photovoltaic cell piece layer, when the switch is in the first conduction state, the light-emitting layer, the switch and the junction box form a conduction loop, at this time, the light-emitting layer is supplied with power by the external power supply, so that the light-emitting photovoltaic tile not only has a power generation function but also has a light-emitting function, is more versatile, has more ornamental value, and can well adapt to multiple scene applications. BRIEF DESCRIPTION OF DRAWINGS
[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort.
[0007] Fig. 1 This is an exploded structural diagram of a light-emitting photovoltaic tile in one embodiment of this application;
[0008] Fig. 2 This is a cross-sectional structural diagram of a light-emitting photovoltaic tile in one embodiment of this application;
[0009] Fig. 3 This is a schematic diagram of the circuit framework structure of the light-emitting layer, switching switch, junction box and photovoltaic cell layer in one embodiment of this application.
[0010] Reference numerals: 1. Luminous photovoltaic tile; 10. First tempered glass layer; 20. Luminous layer; 30. Photovoltaic cell layer; 40. Second tempered glass layer; 50. Junction box; K. Switch; Q. Thyristor; R1. First resistor; RL. Photoresistor; D. Diode; 60. First encapsulant layer; 70. Second encapsulant layer; 80. Third encapsulant layer. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0012] Please refer to Figs. 1-3 As shown, this application proposes a light-emitting photovoltaic tile 1, which not only has the function of generating electricity but also the function of emitting light. It has multiple functions, is more aesthetically pleasing, and can be well adapted to applications in multiple scenarios.
[0013] The luminescent photovoltaic tile 1 includes a first tempered glass layer 10, a light-emitting layer 20, a photovoltaic cell layer 30, and a second tempered glass layer 40, stacked sequentially from the sun-facing side to the shaded side. The luminescent photovoltaic tile 1 also includes a junction box 50 and a control module; the junction box 50 is disposed on the second tempered glass layer 40 and is used to connect to an external power source. The control module includes a switch K; the light-emitting layer 20 is electrically connected to the junction box 50 via the switch K. The switch K has a first conducting state; in the first conducting state, the light-emitting layer 20, the switch K, and the junction box 50 form a conductive circuit, allowing the external power source to supply power to the light-emitting layer 20.
[0014] The following combination Figs. 1-3 The specific structure of the luminescent photovoltaic tile 1 will be described in detail.
[0015] like Figs. 1-3 As shown, the luminescent photovoltaic tile 1 includes a first tempered glass layer 10, a luminescent layer 20, a photovoltaic cell layer 30, and a second tempered glass layer 40.
[0016] The first tempered glass layer 10 is a panel of the light-emitting photovoltaic tile 1, and the first tempered glass layer 10 is located on the sun-facing side of the light-emitting photovoltaic tile 1. The specific shape of the first tempered glass layer 10 is not limited here, and a designer can reasonably design according to actual needs; for example, the first tempered glass layer 10 can be a planar rectangular plate structure or a curved rectangular plate structure. The first tempered glass layer 10 has light transmittance, so that sunlight can penetrate the first tempered glass layer 10 and irradiate on the photovoltaic cell sheet layer 30, and the light projected by the light-emitting layer 20 can also penetrate the first tempered glass layer 10 and project outward.
[0017] The light-emitting layer 20 is a light source of the light-emitting photovoltaic tile 1, and the specific form of the light-emitting layer 20 will be introduced below.
[0018] The photovoltaic cell sheet layer 30 is an energy conversion element of the light-emitting photovoltaic tile 1, and the photovoltaic cell sheet layer 30 can convert solar energy into electrical energy. The photovoltaic cell sheet layer 30 includes a plurality of cell sheets, and when sunlight irradiates on the cell sheets, the semiconductor material of the cell sheets absorbs light energy to generate electron-hole pairs, and under the action of the electric field inside the cell sheets, the electrons and holes separate and move in different directions, thereby generating electric current and realizing the direct conversion of solar energy into electrical energy.
[0019] The second tempered glass layer 40 is a back plate of the light-emitting photovoltaic tile 1, and the second tempered glass layer 40 is located on the back side of the light-emitting photovoltaic tile 1. The specific shape of the second tempered glass layer 40 is not limited here, and a designer can reasonably design according to actual needs; for example, the second tempered glass layer 40 can be a planar rectangular plate structure or a curved rectangular plate structure.
[0020] The first tempered glass layer 10, the light-emitting layer 20, the photovoltaic cell sheet layer 30, and the second tempered glass layer 40 are sequentially stacked from the sun-facing side to the back side.
[0021] As shown in Figs. 1-3 The light-emitting photovoltaic tile 1 further includes a junction box 50 and a control module.
[0022] The junction box 50 is a collection structure of the light-emitting photovoltaic tile 1, and the junction box 50 can be used for, but not limited to, accommodating, for example, the excess lines connected to the light-emitting layer 20 and the photovoltaic cell sheet layer 30, so that the overall wiring of the light-emitting photovoltaic tile 1 is neat. The specific structure of the junction box 50 is not limited here, and a designer can reasonably design according to actual needs; for example, the junction box 50 can include a box body and a cover body, and the cover body is connected with the box body to open or close the opening of the box body.
[0023] The junction box 50 is arranged on the second tempered glass layer 40; here, the specific mounting mode between the junction box 50 and the second tempered glass layer 40 is not limited, and the designer can reasonably design according to the actual needs; for example, the junction box 50 can be but not limited to detachably connected with the second tempered glass layer 40 through clamping; for another example, the junction box 50 can also be but not limited to non-detachably connected with the second tempered glass layer 40 through gluing.
[0024] The junction box 50 is used for connecting an external power supply.
[0025] The control module serves as a control unit of the light-emitting photovoltaic tile 1, and the control module is arranged on the light-emitting layer 20, so as to facilitate the wiring between the control module and the light-emitting layer 20 and the photovoltaic cell layer 30.
[0026] The control module comprises a switching switch K.
[0027] The switching switch K serves as a state switching element of the control module, and the specific form of the switching switch K will be introduced below.
[0028] The light-emitting layer 20 is electrically connected with the junction box 50 through the switching switch K.
[0029] In the first conduction state, the light-emitting layer 20, the switching switch K and the junction box 50 form a conduction loop, and at this time, the light-emitting layer 20 can only be powered by an external power supply.
[0030] The light-emitting layer 20 comprises a plurality of LED point light sources, the plurality of LED point light sources form an LED array, and the LED array is electrically connected with the junction box 50 through the switching switch K. Here, the specific arrangement mode of the plurality of LED point light sources is not limited, and the designer can reasonably design according to the actual needs; for example, the plurality of LED point light sources can be arranged in the form of M rows and N columns to form a rectangular LED array, or the plurality of LED point light sources can be arranged in the form of a certain point as the center to radiate to the periphery to form a circular LED array. It should be noted that the controller (to be introduced below) controls the power supply of the LED array, the controller is provided with a program for controlling the LED array, and the program is designed to control the LED array to display different patterns or characters, control the LED array to project light of a single color or light of different colors, control the LED array to be always on or to flash according to a preset rule, etc., so as to realize a splendid photoelectric display effect and image imaging, and make the light-emitting photovoltaic tile 1 more ornamental.
[0031] Based on the luminescent photovoltaic tile 1 in the embodiment of the present application, by designing the switching switch K, the luminescent layer 20, the junction box 50 and the photovoltaic cell layer 30, when the switching switch K is in the first conduction state, the luminescent layer 20, the switching switch K and the junction box 50 form a conduction loop, at this time, the luminescent layer 20 is powered by the external power supply, so that the luminescent photovoltaic tile 1 not only has the power generation function but also has the luminescent function, the functions are various, more ornamental, and can well adapt to the application of multiple scenes.
[0032] As shown in Fig. 3 The control module further includes a thyristor Q, a photoresistor RL and a first resistor R1, the thyristor Q, the switching switch K and the luminescent layer 20 are connected in series to form a first series branch, the photoresistor RL and the first resistor R1 are connected in series to form a second series branch, the cathode of the thyristor Q is connected between the photoresistor RL and the first resistor R1, and the first series branch, the second series branch and the photovoltaic cell layer 30 are connected in parallel. The switching switch K further has a second conduction state, in the second conduction state, the thyristor Q is in a blocking state, the photovoltaic cell layer 30 cannot supply power to the luminescent layer 20, and the photovoltaic cell layer 30 can supply power to the external load through the lead-out wire; the control module further includes a controller (not shown in the figure), and the controller is electrically connected with the switching switch K to control the switching switch K to switch between the first conduction state and the second conduction state.
[0033] The controller is the control center of the control module, and the controller can be but is not limited to an MCU (Microcontroller Unit, also known as a single-chip microcomputer). The resistance value of the photoresistor RL decreases with the increase of the light intensity; the light intensity is strong in the daytime, the resistance value of the photoresistor RL is small, the photoresistor RL is equivalent to a wire, the cathode voltage of the thyristor Q is equal to the anode voltage of the thyristor Q, and the thyristor Q is in a blocking state, at this time, no current passes through the thyristor Q (equivalent to an open circuit); the light intensity is weak at night, the resistance value of the photoresistor RL is large, the photoresistor RL divides the voltage, the cathode voltage of the thyristor Q is less than the anode voltage of the thyristor Q, and the thyristor Q is in a conduction state.
[0034] In the daytime, the light intensity is strong, the controller controls the switching switch K to be in the second conduction state, at this time, the luminescent layer 20, the switching switch K and the junction box 50 do not form a conduction loop, the external power supply cannot supply power to the luminescent layer 20, and the thyristor Q is in a blocking state, the thyristor Q, the switching switch K, the luminescent layer 20 and the photovoltaic cell layer 30 do not form a conduction loop, and the photovoltaic cell layer 30 cannot supply power to the luminescent layer 20, but the photovoltaic cell layer 30 can supply power to the external load through the lead-out wire, realizing the functions of power generation and grid connection.
[0035] In the night, the light intensity is weak, the controller controls the switch K to be in the first conduction state, at this time, the light emitting layer 20, the switch K and the junction box 50 form a conduction loop, the external power supply can supply power to the light emitting layer 20, although the thyristor Q is in the conduction state, but due to the switch K in the first conduction state, the thyristor Q, the switch K, the light emitting layer 20 and the photovoltaic cell layer 30 still do not form a conduction loop, and the photovoltaic cell layer 30 still cannot supply power to the light emitting layer 20.
[0036] It can be understood that the switch K is a state switching element of the control module, and the switch K can be switched between the first conduction state and the second conduction state under the control of the controller, and the specific form of the switch K can include but is not limited to the following several embodiments.
[0037] In the first embodiment, the switch K is an electrically controlled single-pole double-throw switch, the control end of the electrically controlled single-pole double-throw switch is electrically connected with the controller, the fixed end of the electrically controlled single-pole double-throw switch is electrically connected with the light emitting layer 20, the first movable end of the electrically controlled single-pole double-throw switch is electrically connected with the junction box 50, and the second movable end of the electrically controlled single-pole double-throw switch is electrically connected with the thyristor Q and / or the photovoltaic cell layer 30. In the first conduction state, the fixed end of the electrically controlled single-pole double-throw switch is in conduction with the first movable end of the electrically controlled single-pole double-throw switch, at this time, the light emitting layer 20, the electrically controlled single-pole double-throw switch and the junction box 50 form a conduction loop, and the external power supply supplies power to the light emitting layer 20. In the second conduction state, the fixed end of the electrically controlled single-pole double-throw switch is in conduction with the second movable end of the electrically controlled single-pole double-throw switch, at this time, due to the thyristor Q being in the blocking state, the thyristor Q, the electrically controlled single-pole double-throw switch, the light emitting layer 20 and the photovoltaic cell layer 30 still do not form a conduction loop, and the photovoltaic cell layer 30 still cannot supply power to the light emitting layer 20, and the photovoltaic cell layer 30 supplies power to the external load through the lead-out wire. In this design, by designing the switch K as an electrically controlled single-pole double-throw switch, the controller controls the fixed end of the electrically controlled single-pole double-throw switch to be in conduction with the first movable end of the electrically controlled single-pole double-throw switch, so that the electrically controlled single-pole double-throw switch is in the first conduction state, the light emitting layer 20, the electrically controlled single-pole double-throw switch and the junction box 50 form a conduction loop, and the external power supply supplies power to the light emitting layer 20; by designing the switch K as an electrically controlled single-pole double-throw switch, the controller controls the fixed end of the electrically controlled single-pole double-throw switch to be in conduction with the second movable end of the electrically controlled single-pole double-throw switch, so that the electrically controlled single-pole double-throw switch is in the second conduction state, and the photovoltaic cell layer 30 supplies power to the external load through the lead-out wire.
[0038] In the second embodiment, the switching switch K comprises a first triode (not shown in the figure) and a second triode (not shown in the figure), the base of the first triode is electrically connected with the controller, the emitter of the first triode is electrically connected with the light-emitting layer 20, the collector of the first triode is electrically connected with the junction box 50, the base of the second triode is electrically connected with the controller, the emitter of the second triode is electrically connected with the light-emitting layer 20, and the collector of the second triode is electrically connected with the cathode of the thyristor Q. In the first conduction state described above, the emitter of the first triode is conductive with the collector of the first triode, at this time, the light-emitting layer 20, the first triode and the junction box 50 form a conduction loop, and the external power supply supplies power to the light-emitting layer 20. In the second conduction state described above, the emitter of the second triode is conductive with the collector of the second triode, but at this time, the thyristor Q, the second triode, the light-emitting layer 20 and the photovoltaic cell layer 30 still do not form a conduction loop, and the photovoltaic cell layer 30 still cannot supply power to the light-emitting layer 20, and the photovoltaic cell layer 30 supplies power to the external load through the lead-out wire.
[0039] Of course, in other embodiments, the switching switch K can also comprise a first field effect tube (not shown in the figure) and a second field effect tube (not shown in the figure); here the specific electrical connection mode between the first field effect tube and the light-emitting layer 20 and the junction box 50 will not be described in detail, and can be referred to the specific electrical connection mode between the first triode and the light-emitting layer 20 and the junction box 50 described above; here the specific electrical connection mode between the second field effect tube and the light-emitting layer 20 and the thyristor Q will not be described in detail, and can be referred to the specific electrical connection mode between the second triode and the light-emitting layer 20 and the photovoltaic cell layer 30 described above. It should be noted that, Fig. 3 Only the circuit frame structure diagram when the switching switch K is an electrically controlled single-pole double-throw switch, when the switching switch K is a triode or a field effect tube or other electronic switch, the connection mode of the triode or the field effect tube will be adjusted simply (for example, the emitter and the collector of the triode on the left and the right sides will be adjusted, and the drain and the source of the field effect tube on the left and the right sides will be adjusted) as long as the on-off of the corresponding loop can be realized. Fig. 3 In this double-control linkage mode, the emitter and the collector of the triode on the left and the right sides will be adjusted, and the drain and the source of the field effect tube on the left and the right sides will be adjusted.
[0040] Of course, the switching of the switching switch K between the first conduction state and the second conduction state described above can also not need to be automatically controlled by the controller, but can be realized by manual control at this time, and the switching switch K is a mechanical single-pole double-throw switch, and when the state switching is needed, the operator directly manually moves the mechanical single-pole double-throw switch to realize the switching between the first conduction state and the second conduction state.
[0041] For example, Fig. 3As shown, the control module further comprises a diode D, an anode of the diode D is connected with the positive pole of the photovoltaic cell layer 30, and a cathode of the diode D is connected with the photoresistor R2. By designing the diode D, the diode D can prevent the current from flowing reversely.
[0042] As shown, the control module further comprises a monitoring element (not shown in the figure), the monitoring element is electrically connected with the controller, the monitoring element is used for monitoring the relevant data and generating a switching signal when the relevant data does not meet the preset condition, and the controller controls the switching switch K to switch from the second conduction state to the first conduction state according to the switching signal. Figs. 1-3
[0043] It can be understood that the monitoring element is used for monitoring the relevant data and generating a switching signal when the relevant data does not meet the preset condition, and the relevant data and the preset condition are not the same for different specific forms of the monitoring element. The specific forms of the monitoring element can include, but are not limited to, the following several embodiments.
[0044] In the first embodiment, the monitoring element comprises a photosensitive sensor electrically connected with the controller, the photosensitive sensor is used for detecting the light intensity (one of the above-mentioned relevant data), and the photosensitive sensor generates the above-mentioned switching signal when the actual light intensity detected by the photosensitive sensor is lower than the preset light intensity (one of the above-mentioned preset conditions), and the controller controls the switching switch K to switch from the second conduction state to the first conduction state according to the switching signal. The specific type of the photosensitive sensor is not limited here, and the designer can make a reasonable selection according to the actual needs. The "preset light intensity" is understood as the minimum light intensity corresponding to the current capable of maintaining the normal light emission of the light-emitting layer 20. For example, taking a sunny day as an example, the light intensity during the day is strong, the actual light intensity detected by the photosensitive sensor is higher than the preset light intensity, the photosensitive sensor will not generate the above-mentioned switching signal, the switching switch K is in the second conduction state, the thyristor Q is in the blocking state, at this time, the thyristor Q, the switching switch K, the light-emitting layer 20 and the photovoltaic cell layer 30 do not form a conduction loop, and the photovoltaic cell layer 30 cannot supply power to the light-emitting layer 20, but the photovoltaic cell layer 30 can supply power to the external load through the lead-out wire; while the light intensity at night is weak, the actual light intensity detected by the photosensitive sensor is lower than the preset light intensity, the photosensitive sensor will generate the above-mentioned switching signal, and the controller controls the switching switch K to switch from the second conduction state to the first conduction state according to the switching signal, at this time, the loop formed by the light-emitting layer 20, the switching switch K and the junction box 50 is conductive, and the external power supply supplies power to the light-emitting layer 20.
[0045] In the second embodiment, the monitoring unit comprises a clock timer electrically connected with the controller, the clock timer is used for timing time (another kind of the above-mentioned related data), and the clock timer generates the above-mentioned switching signal when timing to the current time exceeds the preset time (another kind of the above-mentioned preset condition), and the controller can control the switching switch K to switch from the second conduction state to the first conduction state according to the switching signal. Here, the specific model of the clock timer is not limited, and the designer can reasonably select according to the actual needs. For example, taking the preset time as 17:30 as an example, when the current time timed by the clock timer does not exceed 17:30, the clock timer will not generate the above-mentioned switching signal, the switching switch K is in the second conduction state, the thyristor Q is in the blocking state, at this time, the thyristor Q, the switching switch K, the light-emitting layer 20 and the photovoltaic cell layer 30 do not form a conduction loop, and the photovoltaic cell layer 30 cannot supply power to the light-emitting layer 20, but the photovoltaic cell layer 30 can supply power to the external load through the lead-out wire; and when the current time timed by the clock timer exceeds 17:30, the clock timer will generate the above-mentioned switching signal, and the controller will control the switching switch K to switch from the second conduction state to the first conduction state according to the switching signal, at this time, the loop formed by the light-emitting layer 20, the switching switch K and the junction box 50 is conductive, and the external power supply supplies power to the light-emitting layer 20. It should be noted that the above-mentioned "preset time" can be reasonably designed according to the actual needs, for example, in summer, the day is longer, and the preset time can be designed as 18:30, and in winter, the day is shorter, and the preset time can be designed as 17:30.
[0046] The light-emitting photovoltaic tile 1 further comprises an edge sealing (not shown in the figure) which encloses the periphery of the first tempered glass layer 10, the light-emitting layer 20, the photovoltaic cell layer 30 and the second tempered glass layer 40. By designing the edge sealing, the periphery of the first tempered glass layer 10, the light-emitting layer 20, the photovoltaic cell layer 30 and the second tempered glass layer 40 is waterproofly sealed.
[0047] As shown in Figs. 1-2 The light-emitting photovoltaic tile 1 further comprises a first adhesive film layer 60, which is located on the side of the light-emitting layer 20 close to the first tempered glass layer 10 (that is, the first adhesive film layer 60 is located between the first tempered glass layer 10 and the light-emitting layer 20). Among them, the first adhesive film layer 60 can but not limited to include at least one of POE (Polyolefin elastomer, polyolefin elastomer) adhesive layer, EVA (Ethylene-vinyl acetate copolymer, ethylene-vinyl acetate copolymer) adhesive layer, PVB (Polyvinl butaral, polyvinyl butyral) adhesive layer, polyurethane adhesive layer, epoxy resin adhesive layer. In this way, by designing the first adhesive film layer 60, the first tempered glass layer 10 and the light-emitting layer 20 form a firm bond, which can effectively reduce the assembly difficulty of the light-emitting photovoltaic tile 1.
[0048] As Figs. 1-2 shown, the light-emitting photovoltaic tile 1 further comprises a second adhesive film layer 70, which is located on the side of the photovoltaic cell layer 30 close to the light-emitting layer 20 (i.e., the second adhesive film layer 70 is located between the light-emitting layer 20 and the photovoltaic cell layer 30). The second adhesive film layer 70 can include, but is not limited to, at least one of a POE (Polyolefin elastomer) adhesive layer, an EVA (Ethylene-vinyl acetate copolymer) adhesive layer, a PVB (Polyvinl butaral) adhesive layer, a polyurethane adhesive layer, and an epoxy resin adhesive layer. In this way, the second adhesive film layer 70 is designed to firmly bond the light-emitting layer 20 and the photovoltaic cell layer 30, which can effectively reduce the assembly difficulty of the light-emitting photovoltaic tile 1.
[0049] As Figs. 1-2 shown, the light-emitting photovoltaic tile 1 further comprises a third adhesive film layer 80, which is located on the side of the second tempered glass layer 40 close to the photovoltaic cell layer 30 (i.e., the third adhesive film layer 80 is located between the photovoltaic cell layer 30 and the second tempered glass layer 40). The third adhesive film layer 80 can include, but is not limited to, at least one of a POE (Polyolefin elastomer) adhesive layer, an EVA (Ethylene-vinyl acetate copolymer) adhesive layer, a PVB (Polyvinl butaral) adhesive layer, a polyurethane adhesive layer, and an epoxy resin adhesive layer. In this way, the third adhesive film layer 80 is designed to firmly bond the photovoltaic cell layer 30 and the second tempered glass layer 40, which can effectively reduce the assembly difficulty of the light-emitting photovoltaic tile 1.
[0050] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0051] The above only describes preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims
1. A luminescent photovoltaic tile, characterized in that, The light-emitting photovoltaic tile comprises a first tempered glass layer, a light-emitting layer, a photovoltaic cell layer and a second tempered glass layer which are sequentially stacked from the sun-facing side to the non-sun-facing side. A junction box is arranged on the second tempered glass layer and used for connecting an external power supply. A control module comprises a switch, and the light-emitting layer is electrically connected to the junction box through the switch. In the first conduction state, the light-emitting layer, the switch and the junction box form a conduction loop, and the external power supply can supply power to the light-emitting layer.
2. The light-emitting photovoltaic tile according to claim 1, wherein The control module further comprises a thyristor, a photoresistor and a first resistor, the thyristor, the switch and the light-emitting layer are connected in series to form a first series branch, the photoresistor and the first resistor are connected in series to form a second series branch, the cathode of the thyristor is connected between the photoresistor and the first resistor, and the first series branch, the second series branch and the photovoltaic cell layer are connected in parallel. The switch further has a second conduction state, in which the thyristor is in a blocking state, the photovoltaic cell layer cannot supply power to the light-emitting layer, and the photovoltaic cell layer can supply power to an external load through a lead-out wire. The control module further comprises a controller which is electrically connected to the switch to control the switch to switch between the first conduction state and the second conduction state.
3. The light-emitting photovoltaic tile according to claim 2, wherein The switch is an electrically controlled single-pole double-throw switch, the control end of the electrically controlled single-pole double-throw switch is electrically connected to the controller, the fixed end of the electrically controlled single-pole double-throw switch is electrically connected to the light-emitting layer, the first movable end of the electrically controlled single-pole double-throw switch is electrically connected to the junction box, and the second movable end of the electrically controlled single-pole double-throw switch is electrically connected to the thyristor and / or the photovoltaic cell layer. In the first conduction state, the fixed end of the electrically controlled single-pole double-throw switch is in conduction with the first movable end of the electrically controlled single-pole double-throw switch, and in the second conduction state, the fixed end of the electrically controlled single-pole double-throw switch is in conduction with the second movable end of the electrically controlled single-pole double-throw switch.
4. The light-emitting photovoltaic tile according to claim 3, wherein The control module further comprises a diode, the anode of the diode is connected to the positive electrode of the photovoltaic cell layer, and the cathode of the diode is connected to the photoresistor.
5. The light-emitting photovoltaic tile according to claim 2, wherein The control module further comprises a monitoring element which is electrically connected to the controller, the monitoring element is used for monitoring relevant data and generating a switching signal when a preset condition is not met, and the controller controls the switch to switch from the second conduction state to the first conduction state according to the switching signal.
6. The light-emitting photovoltaic tile according to claim 5, wherein The monitoring element comprises a photosensitive sensor electrically connected with the controller, the photosensitive sensor is used for detecting light intensity, and the photosensitive sensor generates the switching signal when the detected actual light intensity is lower than a preset light intensity. 7.The luminescent photovoltaic tile according to claim 1, wherein, The luminescent photovoltaic tile further comprises an edge sealing, which encloses the periphery of the first tempered glass layer, the luminescent layer, the photovoltaic cell layer and the second tempered glass layer; and / or The control module is arranged on the luminescent layer. 8.The luminescent photovoltaic tile according to claim 1, wherein, The luminescent photovoltaic tile further comprises a first adhesive film layer, which is arranged on the side of the luminescent layer close to the first tempered glass layer. 9.The luminescent photovoltaic tile according to claim 1, wherein, The luminescent photovoltaic tile further comprises a second adhesive film layer, which is arranged on the side of the photovoltaic cell layer close to the luminescent layer. 10.The luminescent photovoltaic tile according to claim 1, wherein, The luminescent photovoltaic tile further comprises a third adhesive film layer, which is arranged on the side of the second tempered glass layer close to the photovoltaic cell layer.