Heat collection photovoltaic floor tile

Abstract

The utility model relates to a heat collection photovoltaic floor tile which comprises tempered glass, a solar cell chip and a supporting panel used for supporting the solar cell chip, the tempered glass and the supporting panel are arranged on the upper side and the lower side of the solar cell chip respectively, and the supporting panel is filled with a phase change energy storage material. A heat conduction pipe is arranged in the supporting panel, and the two ends of the heat conduction pipe are connected to the side wall of the supporting panel in a penetrating mode. The photovoltaic floor tile has the effects of preventing high temperature from influencing the power generation efficiency of the battery piece of the photovoltaic floor tile and delaying attenuation of the battery piece and aging of the photovoltaic floor tile.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic floor tiles, and in particular, to a heat - collecting photovoltaic floor tile. Background Art

[0002] The existing photovoltaic power - generation floor - tile structure usually uses two pieces of toughened glass with sufficient strength as the protective glass layer and the back - plate layer respectively, and combines with solar cell chips through an intermediate adhesive film to form a photovoltaic power - generation floor tile. Under sunlight irradiation, the highest temperature on the earth's surface can reach over 100 °C, indicating that photovoltaic floor tiles can not only generate electricity, but also generate heat. Photovoltaic floor tiles will bear high temperatures for a long time during the day when generating electricity.

[0003] Chinese Patent with Application No. 202320992758.2 discloses a photovoltaic floor tile, which includes a photovoltaic assembly component and a photovoltaic power - generation component. The photovoltaic power - generation component is assembled in the photovoltaic assembly component. The photovoltaic power - generation component includes a protective glass layer. A transparent heat - insulating adhesive film is provided at the bottom end face of the protective glass layer. A photovoltaic power - generation layer is provided at the bottom end face of the transparent heat - insulating adhesive film. A transparent adhesive film is provided at the bottom end of the photovoltaic power - generation layer. A back - plate layer is provided at the bottom end of the transparent adhesive film. This photovoltaic floor tile ignores the heat it generates. Instead of utilizing this heat, it allows this heat to affect the power generation amount and service life of the photovoltaic floor tile. For every 1 °C increase in the temperature of the photovoltaic module, the energy conversion efficiency of the solar cell chip decreases by about 0.045%. Therefore, it accelerates the aging of photovoltaic floor tiles and reduces the power generation of battery chips in a high - temperature environment. Since the upper space of the photovoltaic floor tile is in a high - temperature area, the heat of the photovoltaic floor tile preferentially diffuses underground to the area with lower temperature. The soil energy - storage density is low and the heat transfer is slow. The heat generation is much greater than the heat dissipation, resulting in heat accumulation, which affects the power generation amount and service life of the photovoltaic floor tile. Phase - change energy - storage materials (PCM) are materials that can maintain the temperature basically unchanged during the phase - change process while changing the state of matter and providing a large amount of latent heat. If PCM is applied in the support panel of the back - plate layer, it can continuously absorb and store the heat generated during the power - generation process of the photovoltaic floor tile, keeping the battery cells in a low - temperature and high - efficiency power - generation state, and PCM continuously delivers the stored heat to the building in the form of domestic hot water, reducing the energy consumption of domestic hot water in the building.

[0004] Therefore, a new technical solution is needed to solve the above problems. Summary of the Utility Model

[0005] In order to solve problems such as the aging of photovoltaic floor tiles, battery attenuation, and heat energy utilization, this application provides a heat - collecting photovoltaic floor tile.

[0006] The heat - collecting photovoltaic floor tile provided by this application adopts the following technical solutions:

[0007] A heat-collecting photovoltaic floor tile, comprising toughened glass, a solar cell chip, and a support panel for supporting the solar cell chip. The toughened glass and the support panel are respectively arranged on the upper and lower sides of the solar cell chip. The support panel is filled with a phase change energy storage material, and a heat conduction tube is arranged in the support panel. Both ends of the heat conduction tube penetrate through the side wall of the support panel.

[0008] By adopting the above technical solution, the energy of sunlight passes through the surface of the toughened glass and is transmitted to the solar cell chip. The heat generated by the solar cell chip is transferred into the support bottom plate, and the heat stored in the phase change energy storage material is taken away through the heat conduction tube, reducing the temperature of the solar cell chip, reducing the attenuation of the battery chip, and improving the service life of the photovoltaic floor tile.

[0009] Optionally: Reserved holes for the heat conduction tube to pass through are provided on the support panel. A metal hollow tube and two strengthening chips for supporting the metal hollow tube are arranged between the corresponding two reserved holes. The heat conduction tube is slidably connected to the metal hollow tube, and the strengthening chips are arranged on the upper and lower sides of the metal hollow tube.

[0010] By adopting the above technical solution, the bearing capacity of the support bottom plate at the reserved holes is improved, and the structural strength of the photovoltaic floor tile is increased.

[0011] Optionally: Heat insulation materials are filled in the gaps between both ends of the heat conduction tube and the metal hollow tube.

[0012] By adopting the above technical solution, the sealing performance between the metal hollow tube and the heat conduction tube is enhanced, and the heat transfer efficiency is enhanced.

[0013] Optionally: Support chips for supporting the upper and lower sides of the support panel are arranged in the support panel.

[0014] By adopting the above technical solution, the structural strength of the support panel is improved to meet the load-bearing requirements of the photovoltaic floor tile.

[0015] Optionally: A plurality of liquid filling ports are arranged on one side of the support panel. The liquid filling ports communicate with the cavity of the support panel, and sealing caps for sealing the liquid filling ports are arranged on the liquid filling ports.

[0016] By adopting the above technical solution, it is convenient to inject and replace the phase change energy storage material in the support panel.

[0017] Optionally: One-way heat transfer adhesive films for making heat transfer downward are arranged on both the upper and lower sides of the solar cell chip.

[0018] By adopting the above technical solution, the heat utilization rate of the photovoltaic floor tile is enhanced.

[0019] Optionally, there are multiple heat conduction tubes, and the multiple heat conduction tubes are arranged in parallel.

[0020] By adopting the above technical solution, compared with using a single heat conduction tube, using multiple heat conduction tubes is beneficial to improving the heat transfer efficiency.

[0021] Optionally, the toughened glass is ultra-white toughened glass, and anti-slip patterns are provided on the upper end surface of the toughened glass.

[0022] By adopting the above technical solution, the road surface friction is increased, and the anti-slip property of the toughened glass is improved.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. In the present application, part of the heat of the solar infrared radiation on the glass surface is transferred to the solar cell chip, and the solar cell chip then transfers the heat to the support bottom plate through the one-way heat transfer adhesive film, reducing the temperature of the solar cell chip, reducing the attenuation of the battery chip, and improving the service life of the photovoltaic floor tile.

[0025] 2. In the present application, tap water in the heat conduction tube takes away the heat stored in the phase change energy storage material, maintaining the heat storage density and rate of the phase change energy storage material. In addition, the tap water output from the heat conduction tube is first concentrated in the heat-insulated water tank and then conveyed to the user end through the tap water pipe, reducing the energy consumption of the building for domestic hot water and making full use of the heat energy generated by the photovoltaic floor tile. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of an embodiment of the present application;

[0027] Figure 2 is Figure 1 an enlarged view of part A of

[0028] Figure 3 is a schematic internal structure diagram of the support panel (aluminum honeycomb core);

[0029] Figure 4 is a schematic internal structure diagram of the support panel (metal chip).

[0030] In the figure, 1. Toughened glass; 2. Solar cell chip; 21. Transparent one-way heat transfer adhesive film; 22. One-way heat transfer adhesive film; 23. Electric wire; 3. Support panel; 31. Support chip; 311. Metal honeycomb core; 312. Metal chip; 32. Reserved hole; 33. Metal hollow tube; 34. Reinforcing chip; 35. Liquid filling port; 4. Phase change energy storage material; 5. Heat conduction tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The present application will be further described in detail below with reference to the accompanying drawings.

[0032] A heat - collecting photovoltaic floor tile disclosed in the present application, as Figure 1 and Figure 2 shown, includes tempered glass 1, solar cell chips 2, and a support panel 3 for supporting the solar cell chips 2. The tempered glass 1 layer is disposed on the upper side of the solar cell chips 2. The tempered glass 1 uses ultra - white tempered glass 1 to enhance the light transmittance of the tempered glass 1. The upper end surface of the tempered glass 1 is provided with anti - slip patterns to increase the road surface friction and improve the anti - slip property of the tempered glass 1. The support panel 3 is disposed on the lower side of the solar cell chips 2. The tempered glass 1 and the solar cell chips 2 are bonded through a transparent one - way heat - transfer adhesive film 21. The solar cell chips 2 and the phase - change energy - storage support panel 3 are bonded through a one - way heat - transfer adhesive film 22. Wires 23 are connected to the solar cell chips 2 for outputting power, DC current, and voltage.

[0033] As Figure 2 and Figure 3 shown, a cavity is provided inside the support panel 3. A phase - change energy - storage material 4 is filled in the cavity of the support panel 3. A plurality of liquid - filling ports 35 for injecting or replacing the phase - change energy - storage material 4 inside the support panel 3 are opened at the upper left corner on one side of the support panel 3. The phase - change energy - storage material 4 is injected into the support panel 3 by means of vacuum injection. A sealing cover for sealing the liquid - filling port 35 is provided on the liquid - filling port 35.

[0034] As Figure 3 and Figure 4 shown, support chips 31 for supporting the upper and lower sides of the support panel 3 are provided inside the support panel 3. The support chips 31 can be selected as metal honeycomb cores 311 or metal chips 312. The metal honeycomb cores 311 and the bottom surface of the support panel 3 are connected by partial welding or cementing. There is a 1 - 3 mm gap between the upper side of the metal honeycomb cores 311 and the support panel 3 to ensure the fluidity of the phase - change energy - storage material 4 inside the support panel 3. When using metal chips 312, the horizontal and vertical metal chips 312 are connected in an inlaid and welded - assisted manner, and the connection method with the upper and lower panels is the same as that of the metal honeycomb cores 311, making it an integral whole to meet the load - bearing capacity requirements of the photovoltaic floor tile.

[0035] As Figure 2As shown in the figure, multiple heat conduction tubes 5 are arranged inside the support panel 3. The heat conduction tubes 5 are connected to an external heat preservation water tank. The multiple heat conduction tubes 5 are arranged in parallel inside the support panel 3. Both ends of the heat conduction tube 5 penetrate through the support panel 3. The support panel 3 is provided with reserved holes 32 for the heat conduction tubes 5 to pass through. Between two corresponding reserved holes 32, there are a metal hollow tube 33 for supporting the heat conduction tube 5 and two reinforcing chips 34. Both ends of the metal hollow tube 33 are connected to the two reserved holes 32. The heat conduction tube 5 is inserted into the metal hollow tube 33. The reinforcing chips 34 are arranged at the upper and lower ends of the metal hollow tube 33. The reinforcing chips 34 and the metal hollow tube 33 are integrated into a whole by welding and are integrally welded to the upper or lower panel, and are welded to the support chip 31 at a certain distance. And the end of the metal hollow tube 33 protrudes slightly from the side plate by 0.5 mm - 1 mm. The periphery of the metal hollow tube 33 is welded to the support chip 31 inside the support panel 3 to further improve the integrity of the reinforcing chip 34, the metal hollow tube 33 and the support panel 3, and better bear the load transmitted from the upper part of the photovoltaic floor tile. In order to further improve the utilization rate of heat, the tiny gap between the two ends of the heat conduction tube 5 and the metal hollow tube 33 is sealed with heat insulation glue or a heat insulation surface.

[0036] The implementation principle of this embodiment is as follows:

[0037] The transparent one-way heat transfer adhesive film 2221 transfers part of the heat of the solar infrared radiation on the glass surface to the solar cell chip 2. The solar cell chip 2 then transfers the heat to the support panel 3 through the one-way heat transfer adhesive film 22, reducing the temperature of the solar cell chip 2, reducing the attenuation of the cell chip, and increasing the service life of the photovoltaic floor tile. Tap water is passed through the heat conduction tube 5 to take away the heat stored by the phase change energy storage material 4, maintaining the heat storage density and rate of the phase change energy storage material 4. In addition, the tap water output from the heat conduction tube 5 is first concentrated in the heat preservation water tank and then conveyed to the user end through the tap water pipe for use, reducing the energy consumption of the building for domestic hot water and making full use of the heat energy generated by the photovoltaic floor tile. The heat transfer path is the anti-slip ultra-white tempered glass 1 - the transparent one-way heat transfer adhesive film 2221 - the solar cell chip 2 - the one-way heat transfer adhesive film 22 - the phase change energy storage support panel 3 - tap water - domestic hot water in the building.

[0038] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A solar photovoltaic floor tile, characterized in that: The invention comprises a tempered glass (1), a solar cell chip (2) and a support panel (3) for supporting the solar cell chip (2); the tempered glass (1) and the support panel (3) are respectively arranged on the upper and lower sides of the solar cell chip (2); the support panel (3) is filled with a phase change energy storage material (4); a heat conduction pipe (5) is arranged in the support panel (3); and both ends of the heat conduction pipe (5) are connected to the side wall of the support panel (3).

2. The photovoltaic floor tile according to claim 1, characterized in that: The support panel (3) is provided with a reserved hole (32) for the heat conducting pipe (5) to pass through, a metal hollow pipe (33) and two reinforcing chips (34) for supporting the metal hollow pipe (33) are provided between two corresponding reserved holes (32), the heat conducting pipe (5) is slidably connected to the metal hollow pipe (33), and the reinforcing chips (34) are provided on the upper and lower sides of the metal hollow pipe (33) sheet.

3. The photovoltaic floor tile according to claim 2, characterized in that: The space between the heat conducting pipe (5) and the two ends of the metal hollow pipe (33) is filled with heat insulating material.

4. The solar photovoltaic floor tile according to claim 1, characterized in that: A support chip (31) for supporting the upper and lower sides of the support panel (3) is arranged inside the support panel (3).

5. The solar photovoltaic floor tile according to claim 1, characterized in that: A plurality of liquid adding ports (35) are provided on one side of the support panel (3), the liquid adding ports (35) are connected to the cavity of the support panel (3), and sealing covers for sealing the liquid adding ports (35) are provided on the liquid adding ports (35).

6. The photovoltaic floor tile according to claim 1, characterized in that: The upper and lower sides of the solar cell chip (2) are both provided with a one-way heat transfer adhesive film (22) for transferring heat downwards.

7. The solar photovoltaic floor tile according to claim 1, characterized in that: There are a plurality of heat-conducting pipes (5), and the plurality of heat-conducting pipes (5) are arranged in parallel.

8. The solar photovoltaic floor tile according to claim 1, characterized in that: The tempered glass (1) is ultra-white tempered glass (1), and the upper end surface of the tempered glass (1) is provided with anti-slip patterns.

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