Cooling backboard and photovoltaic and photo-thermal integrated device comprising same

Abstract

The utility model relates to a cooling back plate and a photovoltaic photo-thermal integrated device comprising the same, and belongs to the technical field of photovoltaic photo-thermal devices. Wherein a plurality of through capillary runners are formed in the runner plate and are used for circulating a cooling medium; the water distributors are arranged on the two sides of the runner plate in the capillary runner direction and used for inflow and outflow of a cooling medium respectively. According to the cooling back plate, the plurality of capillary runners are arranged in the runner plate, so that a cooling medium provided by the water distributor can uniformly flow, and the cooling efficiency is improved; in a transformation project, the cooling back plate is pasted below the photovoltaic panel, so that the temperature of the photovoltaic panel can be quickly reduced, the photoelectric conversion efficiency is improved, and the comprehensive utilization rate of solar energy is improved; moreover, the cooling back plate in the embodiment is simple in structure, low in cost and suitable for popularization and application.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic light heat device technical field especially, it relates to a kind of cooling backplate and the photovoltaic light heat integration device comprising it. BACKGROUND

[0002] Photovoltaic device is a kind of component that can convert solar energy into electric energy, make full use of solar energy and do not generate any waste water, waste residue and other pollutants in conversion process, and it is of great significance to alleviate energy crisis and environmental pollution.

[0003] Traditional photovoltaic device only has power generation function, but the surface of glass can reach 70-80 degrees high temperature in power generation process, and the temperature characteristic of photovoltaic module is that under the same irradiation condition, the higher the temperature, the lower the photoelectric conversion efficiency, and 70-80% of this part of heat energy is not effectively utilized.

[0004] In order to improve the utilization rate of solar energy resources, the prior art proposes some devices that can collect light and heat resources, but due to the complex structure, the thickness of the original photovoltaic module is increased, which affects the installation, and the transformation cost is high.

[0005] Therefore, how to solve the problem of high construction cost of current photovoltaic project is a technical problem to be solved at present. UTILITY MODEL CONTENT

[0006] In view of the deficiencies in the prior art, the utility model provides a cooling backplate and a photovoltaic light heat integration device comprising the same. The cooling backplate is provided with a plurality of capillary flow channels in the flow channel plate, which can uniformly flow the cooling medium provided by the water distributor, thereby improving the cooling efficiency. In the transformation project, the cooling backplate is pasted under the photovoltaic panel, which helps to quickly reduce the temperature of the photovoltaic panel, thereby improving the photoelectric conversion efficiency.

[0007] In the first aspect, the utility model provides a cooling backplate, comprising:

[0008] A flow channel plate is provided with a plurality of through capillary flow channels inside, for flowing cooling medium;

[0009] A water distributor is arranged on both sides of the flow channel plate along the direction of the capillary flow channel, respectively for inflow and outflow of the cooling medium.

[0010] The technical scheme sets a plurality of capillary flow channels in the flow channel plate, which can uniformly flow the cooling medium provided by the water distributor, thereby improving the cooling efficiency. In the transformation project, the cooling backplate is pasted under the photovoltaic panel, which helps to quickly reduce the temperature of the photovoltaic panel, thereby improving the photoelectric conversion efficiency.

[0011] In some embodiments, the flow channel plate and the water distributor are connected through a connecting point. The connection of the connecting point ensures the firm connection between the flow channel plate and the water distributor.

[0012] In some embodiments, the water distributor is provided with a first interface at both ends for water inlet or outlet. The first interface allows the water distributor to flexibly perform water inlet and outlet operations, improving the efficiency and adaptability of the cooling system.

[0013] In some embodiments, the first interface is provided with an internal thread for connecting a water inlet pipe or a water outlet pipe. The internal thread improves the tightness of the water inlet pipe or the water outlet pipe to prevent leakage.

[0014] In some embodiments, the water inlet pipe or the water outlet pipe is provided with a second interface at the end connected to the first interface, and the second interface matches the first interface. The second interface simplifies the installation process of the water inlet pipe or the water outlet pipe.

[0015] In some embodiments, the second interface is provided with an external thread matching the internal thread. The external thread further enhances the firmness and stability of the connection.

[0016] In some embodiments, the flow channel plate and the water distributor are made of modified polymer materials. The use of modified polymer materials reduces the impact on structural load, has high production efficiency and low cost, and is beneficial to cost savings.

[0017] In a second aspect, the utility model also provides a photovoltaic and photo-thermal integrated device, containing the cooling backboard above, still include photovoltaic board, photovoltaic board sets up above cooling backboard, and cooling backboard is used for cooling photovoltaic board.

[0018] The cooling backboard arranged below the photovoltaic board can efficiently cool the photovoltaic board, improving the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy.

[0019] In some embodiments, a heat-conducting material is arranged between the photovoltaic board and the cooling backboard for bonding. The use of the heat-conducting material for bonding the photovoltaic board and the cooling backboard not only ensures the close bonding of the photovoltaic board and the cooling backboard, but also ensures the efficient heat conduction of the photovoltaic board and the cooling backboard.

[0020] In some embodiments, the photovoltaic and photo-thermal integrated device further includes a fixing frame arranged on both sides of the photovoltaic board parallel to the direction of the flow channel plate capillary flow channel for fixing the photovoltaic board and the water distributor. The fixing frame provides stable structural support for the installation of the photovoltaic board and the water distributor, ensuring the firm installation of the photovoltaic board and the water distributor.

[0021] Based on the above scheme, the cooling back plate can uniformly flow the cooling medium provided by the water distributor by arranging a plurality of capillary flow channels in the flow channel plate, thereby improving the cooling efficiency; in the renovation project, the cooling back plate is pasted under the photovoltaic panel, which helps to quickly reduce the temperature of the photovoltaic panel, thereby improving the photoelectric conversion efficiency and improving the comprehensive utilization rate of solar energy; and the cooling back plate in the embodiment has simple structure and low cost, and is suitable for popularization and use. The photovoltaic-thermal integrated device can realize efficient cooling of the photovoltaic panel by arranging a cooling back plate under the photovoltaic panel, improve the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy, compared with the ordinary separate photovoltaic device superimposed with a separate solar water heater device, can save the floor area, suitable for the renovation project of the existing photovoltaic panel; during the renovation, only the photovoltaic panel needs to be removed, and after the cooling back plate is pasted under the photovoltaic panel, the photovoltaic panel is reinstalled, which is simple to operate. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the present application. In the drawings:

[0023] Figure 1 FIG. 1 is a structural schematic view of a cooling back plate in an embodiment of the present application;

[0024] Figure 2 FIG. 2 is a sectional view along an A-A cutting line in the cooling back plate in the embodiment of the present application; Figure 1

[0025] Figure 3 Figure 1

[0026] Figure 4 Figure 1

[0027] Figure 5 FIG. 6 is a structural schematic view of a photovoltaic-thermal integrated device in an embodiment of the present application;

[0028] Figure 6 Figure 5

[0029] Figure 7 FIG. 7 is a structural schematic view of a photovoltaic-thermal integrated device in Embodiment 1.

[0030] In the drawings:

[0031] 1, flow channel plate; 2, water distributor; 3, connection point; 4, first interface; 5, second interface;

[0032] ​​​​​​​6. Photovoltaic panels; 7. Fixing frame;

[0033] 101, capillary channel; 401, internal thread; 501, external thread. Detailed Implementation

[0034] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Firstly, such as Figures 1-4 As shown, in one embodiment of the cooling backplate of this utility model and the photovoltaic-thermal integrated device including it, the cooling backplate includes a flow channel plate 1 and a water distributor 2; wherein, the flow channel plate 1 has a plurality of through capillary channels 101 for circulating cooling medium; the water distributor 2 is disposed on both sides of the flow channel plate 1 along the direction of the capillary channels 101, and is used for the inflow and outflow of cooling medium respectively.

[0039] In the above illustrative embodiment, the cooling backboard can make the cooling medium provided by the water distributor 2 flow uniformly by setting a plurality of capillary flow channels 101 in the flow channel plate 1, thereby improving the cooling efficiency; in the renovation project, the cooling backboard is pasted below the photovoltaic panel 6, which helps to quickly reduce the temperature of the photovoltaic panel 6, thereby improving the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy; and the cooling backboard structure in the embodiment is simple and low in cost, and is suitable for popularization and use.

[0040] In some embodiments, the cooling medium uses water or antifreeze; compared with the freon medium device commonly used in the prior art, the application scenario is more extensive.

[0041] In some embodiments, as shown in Figure 3 The flow channel plate 1 and the water distributor 2 are connected through the connecting point 3. As an illustrative embodiment, the connecting point 3 realizes the connection of the flow channel plate 1 and the water distributor 2 by welding. The connection through the connecting point 3 ensures the firm connection between the flow channel plate 1 and the water distributor 2.

[0042] In some embodiments, as shown in Figure 4 The water distributor 2 is provided with a first interface 4 for water inlet or outlet at both ends. Through the setting of the first interface 4, the water distributor 2 can flexibly perform water inlet and outlet operation, thereby improving the efficiency and adaptability of the cooling system.

[0043] In some embodiments, as shown in Figure 2 The first interface 4 is provided with an internal thread 401 for connecting the water inlet pipe or the water outlet pipe. Through the setting of the internal thread 401, the tightness of the water inlet pipe or the water outlet pipe is improved to prevent leakage.

[0044] In some embodiments, as shown in Figure 2 The end of the water inlet pipe or the water outlet pipe connected with the first interface 4 is provided with a second interface 5 matched with the first interface 4. Through the setting of the second interface 5, the installation process of the water inlet pipe or the water outlet pipe is simplified.

[0045] In some embodiments, as shown in Figure 2 The second interface 5 is provided with an external thread 501 matched with the internal thread 401. Through the setting of the external thread 501, the firmness and stability of the connection are further improved.

[0046] In some embodiments, the flow channel plate 1 and the water distributor 2 are made of modified high molecular materials. Compared with the stainless steel or aluminum alloy material used in the prior art, the modified high molecular material (such as plastic material) is light in weight, labor-saving in installation, and has less impact on structural load; and the modified high molecular material has high production efficiency and low cost, which is beneficial to cost saving.

[0047] Further, the flow channel plate 1 and the water distributor 2 are integrally formed by an extrusion process.

[0048] In a second aspect, based on the cooling backboard, the utility model also provides a photovoltaic and photo-thermal integrated device, as shown in the figure, the photovoltaic and photo-thermal integrated device comprises the cooling backboard, and further comprises a photovoltaic panel 6, the photovoltaic panel 6 is arranged above the cooling backboard, and the cooling backboard is used to cool the photovoltaic panel 6. Figure 5

[0049] In the above-mentioned schematic embodiment, the photovoltaic and photo-thermal integrated device can realize efficient cooling of the photovoltaic panel 6 by arranging the cooling backboard below the photovoltaic panel 6, improve the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy, compared with the ordinary separate photovoltaic device superimposed with a separate solar water heater device, can save the floor area, and is suitable for the modification project of the existing photovoltaic panel 6; during the modification, only the photovoltaic panel 6 needs to be removed, the cooling backboard is pasted below the photovoltaic panel 6, and then the photovoltaic panel 6 is installed again, so that the operation is simple.

[0050] In some embodiments, a heat-conducting material is arranged between the photovoltaic panel 6 and the cooling backboard for bonding. By using the heat-conducting material to bond the photovoltaic panel 6 and the cooling backboard, the close bonding of the photovoltaic panel 6 and the cooling backboard can be ensured, and the efficient heat conduction of the photovoltaic panel 6 and the cooling backboard can also be ensured, further improving the cooling effect and the working efficiency of the photovoltaic panel 6.

[0051] In some embodiments, as shown in the figure, the photovoltaic and photo-thermal integrated device further comprises a fixing frame 7, the fixing frame 7 is arranged on both sides of the photovoltaic panel 6 parallel to the direction of the capillary flow channel 101 of the flow channel plate 1, and is used to fix the photovoltaic panel 6 and the water distributor 2. By arranging the fixing frame 7, stable structural support is provided for the installation of the photovoltaic panel 6 and the water distributor 2, the firm installation of the photovoltaic panel 6 and the water distributor 2 is ensured, and the overall stability and durability of the device are enhanced. Figure 6 Embodiment 1

[0052] It should be noted that the size of the water distributor 2 and the flow channel plate 1 is arranged according to the size of the photovoltaic panel 6, and when the height of the photovoltaic panel 6 is large, the cooling backboard is arranged in groups to ensure the power of the water distributor 2. As shown in the figure, in this embodiment, two groups of cooling backboards are pasted at the bottom of one photovoltaic panel 6.

[0053] Figure 7 Through the description of the plurality of embodiments of the cooling backboard and the photovoltaic and photo-thermal integrated device comprising the same, it can be seen that the cooling backboard and the photovoltaic and photo-thermal integrated device comprising the same have at least one or more of the following advantages:

[0054]

[0055] ​​​1. The cooling backboard provided by the utility model, by setting up a plurality of capillary flow passages 101 in the flow channel plate 1, the cooling medium provided by the water distributor 2 can be uniformly flowed, thereby improving the cooling efficiency;

[0056] 2. The cooling backboard provided by the utility model, in the reconstruction project, the cooling backboard is pasted below the photovoltaic panel 6, which helps to quickly reduce the temperature of the photovoltaic panel 6, thereby improving the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy;

[0057] 3. The photovoltaic and light heat integrated device provided by the utility model, by setting the cooling backboard below the photovoltaic panel 6, the efficient cooling of the photovoltaic panel 6 can be realized, and the photoelectric conversion efficiency and the comprehensive utilization rate of solar energy are improved.

[0058] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to.

[0059] The above embodiments are only used to illustrate the technical scheme of the utility model and not to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific implementation of the utility model can be modified or some technical features can be replaced. Without departing from the spirit of the technical scheme of the utility model, they should be covered in the technical scheme range of the utility model claimed.

Claims

1. A cooling backsheet, characterized in that, The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels.

2. The cooled backplane of claim 1, wherein, The application relates to a cooling back plate for photovoltaic panels.

3. The cooled backplane of claim 1, wherein, The application relates to a cooling back plate for photovoltaic panels.

4. The cooled backplane of claim 3, wherein, The application relates to a cooling back plate for photovoltaic panels.

5. The cooled backplane of claim 4, wherein, The application relates to a cooling back plate for photovoltaic panels.

6. The cooled backing plate of claim 5, wherein, The application relates to a cooling back plate for photovoltaic panels.

7. The cooled backing plate of claim 1, wherein, The application relates to a cooling back plate for photovoltaic panels.

8. A photovoltaic-photothermal integrated device, characterized in that, The application relates to a cooling back plate for photovoltaic panels.

9. The photovoltaic and photo thermal integrated device according to claim 8, characterized in that, The application relates to a cooling back plate for photovoltaic panels.

10. The photovoltaic photo thermal integrated device according to claim 8, characterized in that, The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to a cooling back plate for photovoltaic panels. The application relates to

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