TWM647692U - Plate type container, cooling type photovoltaic power generation device and solar photovoltaic power generation equipment - Google Patents

Abstract

This invention provides a plate container, cooling photovoltaic power generation device and solar photovoltaic power generation equipment, which can effectively reduce the operating temperature of photovoltaic components, help improve the efficiency of photovoltaic power generation, and facilitate promotion and application. The plate container has a heat dissipation surface, a heat exchange surface and a receiving cavity located between the heat dissipation surface and the heat exchange surface, and the heat exchange surface of the plate container is used to be face to face attached to the light receiving surface of the solar photovoltaic component, wherein the The base of the plate container that provides the heat dissipation surface and the heat exchange surface is made of transparent material, and the receiving cavity of the plate container is used to receive light-transmitting liquid for heat exchange and cooling of the solar photovoltaic component.

Description

Plate containers, cooling photovoltaic power generation devices and solar photovoltaic power generation equipment

This creation relates to the field of solar power generation technology, specifically, it relates to a plate container, a cooling photovoltaic power generation device and solar photovoltaic power generation equipment.

As the main source of energy on the earth's surface, the sun not only brings bright light to us, but also radiates heat. As countries in recent years have actively promoted the application of renewable energy, the solar photovoltaic industry has developed rapidly. Solar photovoltaic cells usually refer to facilities that use the photovoltaic effect of photovoltaic semiconductor materials to convert solar energy into DC power. Since its inception, continuous advancements in materials, technology, and the development and maturity of the manufacturing industry have driven photovoltaic systems The structure has become cheaper, promoting the widespread application of photovoltaic power generation in various countries.

However, solar photovoltaic modules generate heat while generating electricity, and an increase in their operating temperature will lead to a decrease in power generation efficiency. It is estimated that for every one degree increase in the operating temperature of photovoltaic modules, their power generation efficiency will decrease by 0.4%. In summer, the surface temperature of photovoltaic modules can reach over 70°C, and the internal operating temperature can reach over 100°C, resulting in reduced power generation. The efficiency drops by about 30%. In current practice, the heat dissipation of solar photovoltaic modules mainly relies on natural ventilation for cooling. However, the cooling effect of this method is very poor and cannot effectively reduce the operating temperature of photovoltaic modules, which greatly affects the application and promotion of photovoltaic power generation.

One of the advantages of this creation is to provide a plate container, cooling photovoltaic power generation Devices and solar photovoltaic power generation equipment can effectively reduce the operating temperature of photovoltaic modules, help improve the efficiency of photovoltaic power generation, and facilitate promotion and application.

Another advantage of this invention is to provide a plate container, a cooling photovoltaic power generation device and a solar photovoltaic power generation equipment. In one embodiment of the invention, the above-mentioned cooling photovoltaic power generation device can utilize a plate container containing a light-transmitting liquid. To effectively absorb the heat generated by photovoltaic modules and reduce the operating temperature of photovoltaic modules.

Another advantage of this invention is to provide a plate container, a cooling photovoltaic power generation device and a solar photovoltaic power generation equipment. In one embodiment of the invention, the above-mentioned cooling photovoltaic power generation device can delay the aging of photovoltaic components and improve the overall use. The amount of electricity generated during the cycle.

Another advantage of this invention is to provide a plate container, a cooling photovoltaic power generation device and a solar photovoltaic power generation equipment. In one embodiment of the invention, the above-mentioned cooling photovoltaic power generation device can utilize the liquid belt flowing in the plate container. Remove a large amount of heat to further improve the cooling effect of photovoltaic modules.

Another advantage of this invention is to provide a plate container, a cooling photovoltaic power generation device and a solar photovoltaic power generation equipment. In one embodiment of the invention, the cooling photovoltaic power generation device can use a plate container to replace the solar photovoltaic module. Tempered glass is used to reduce the weight of the device while improving heat transfer efficiency.

Another advantage of this invention is to provide a plate container, a cooling photovoltaic power generation device and a solar photovoltaic power generation equipment. In one embodiment of the invention, the above-mentioned cooling photovoltaic power generation device can directly install the plate container on the solar photovoltaic power generation device. The module is mounted on tempered glass to reduce the difficulty of modifying existing solar panels and facilitate promotion and application.

Another advantage of this invention is to provide a plate container, cooling photovoltaic Electrical devices and solar photovoltaic power generation equipment, wherein in order to achieve the above purposes, there is no need to use expensive materials or complex structures in this creation. Therefore, this invention successfully and effectively provides a solution, which not only provides a simple plate container, cooling photovoltaic power generation device and solar photovoltaic power generation equipment, but also adds the above plate type container, cooling photovoltaic power generation device and solar photovoltaic power generation equipment. practicality and reliability.

In order to realize at least one of the above advantages or other advantages and purposes of this invention, this invention provides a plate container for cooling solar photovoltaic modules. The above-mentioned plate container has a heat dissipation surface, a heat exchange surface and is located on the heat dissipation surface and the heat exchange surface. There is a receiving cavity between them, and the above-mentioned heat exchange surface of the above-mentioned plate container is used to be attached face-to-face to the light-receiving surface of the solar photovoltaic module, wherein the base body of the above-mentioned plate container that provides the above-mentioned heat dissipation surface and the above-mentioned heat exchange surface is made of a transparent material It is made, and the above-mentioned receiving cavity of the above-mentioned plate container is used to accommodate light-transmitting liquid for heat exchange and cooling of the solar photovoltaic module.

According to one embodiment of the present application, the above-mentioned plate container includes two light-transmitting panels and an upright peripheral wall, and the two above-mentioned light-transmitting panels are spaced apart from the upper and lower sides of the above-mentioned upright peripheral wall, so that between the two above-mentioned light-transmitting panels The above-mentioned receiving cavity is formed between the panels.

According to an embodiment of the present application, the light-transmitting liquid contained in the receiving cavity of the plate container is water.

According to an embodiment of the present application, the above-mentioned plate container is provided with a liquid inlet and a liquid outlet connected to the above-mentioned receiving cavity, wherein the above-mentioned liquid inlet of the above-mentioned plate container is used to replenish cold light-transmitting liquid to the above-mentioned receiving cavity, and the above-mentioned plate container The above-mentioned liquid outlet of the container is used to discharge the hot light-transmitting liquid in the above-mentioned receiving cavity.

According to another aspect of this application, this application further provides a cooling photovoltaic power generation device for generating electricity using sunlight, which includes: A solar photovoltaic module, wherein the above-mentioned solar photovoltaic module has a light-receiving surface for receiving the sunlight for photovoltaic power generation; and any one of the above-mentioned plate containers, wherein the above-mentioned plate container is correspondingly attached to the above-mentioned part of the above-mentioned solar photovoltaic module. The light-receiving surface is used for heat exchange and cooling of the above-mentioned solar photovoltaic modules.

According to an embodiment of the present application, the above-mentioned solar photovoltaic module includes tempered glass, photovoltaic cells and a backsheet stacked in sequence from top to bottom, and the above-mentioned tempered glass and the above-mentioned backsheet are glued to each other through a light-transmitting adhesive film. On opposite sides of the photovoltaic cell sheet, the plate container is stacked and installed on the tempered glass of the solar photovoltaic module.

According to an embodiment of the present application, the above-mentioned solar photovoltaic module includes photovoltaic cells and a backsheet, and the above-mentioned plate container and the above-mentioned backsheet are directly glued to the opposite sides of the above-mentioned photovoltaic cells of the above-mentioned solar photovoltaic module through light-transmitting adhesive films. surface.

According to an embodiment of the present application, the above-mentioned solar photovoltaic module includes photovoltaic cells, and the two above-mentioned plate containers are respectively glued to the opposite surfaces of the above-mentioned photovoltaic cells of the above-mentioned solar photovoltaic module through light-transmitting adhesive films.

According to an embodiment of the present application, the above-mentioned cooling photovoltaic power generation device further includes a reflector, and the above-mentioned reflector is correspondingly arranged for reflecting the sunlight to the above-mentioned light-receiving surface of the above-mentioned solar photovoltaic component.

According to another aspect of the present application, the present application further provides a solar photovoltaic power generation equipment, which includes: any of the above-mentioned cooling photovoltaic power generation devices; and an auxiliary device, wherein the above auxiliary device can be electrically connected to The above-mentioned cooling photovoltaic power generation device is used to process the electric energy generated by the above-mentioned cooling photovoltaic power generation device.

1: Cooling photovoltaic power generation device

2: Auxiliary device

10:Solar photovoltaic modules

11: Tempered glass

12: Photovoltaic cells

13:Back panel

14: Transparent film

20: Plate container

21: Translucent panel

22: Upright peripheral wall

30: Radiator

40:Reflector

100:Light-receiving surface

200:Matrix

201:Heating surface

202:Heat exchange surface

203:Containment chamber

204:Liquid import

205:Liquid outlet

W: translucent liquid

Figure 1 is a schematic structural diagram of a cooling photovoltaic power generation device according to an embodiment of the invention; Figure 2 shows a schematic principle diagram of the cooling photovoltaic power generation device according to the above embodiment of the invention; Figure 3 shows a schematic diagram of the cooling photovoltaic power generation device according to the above embodiment of the invention. A schematic three-dimensional view of the above-mentioned cooling photovoltaic power generation device according to the above-mentioned embodiment of the invention; Figure 4 shows a first example of the above-mentioned cooling photovoltaic power generation device according to the above-mentioned embodiment of the invention; Figure 5 shows the above-mentioned cooling photovoltaic power generation device according to the above-mentioned embodiment of the invention. A second example of the above-mentioned cooling photovoltaic power generation device of the embodiment; Figure 6 shows a third example of the above-mentioned cooling photovoltaic power generation device according to the above-mentioned embodiment of the present invention; Figure 7 shows a third example of the above-mentioned cooling photovoltaic power generation device according to the above-mentioned embodiment of the present invention. The fourth example of the above-mentioned cooling photovoltaic power generation device; Figure 8 is a schematic structural diagram of a solar photovoltaic power generation equipment according to an embodiment of the present invention.

Explanation of main component symbols: 1. Cooling photovoltaic power generation device; 10. Solar photovoltaic module; 100. Light-receiving surface; 11. Tempered glass; 12. Photovoltaic cells; 13. Back plate; 14. Transparent film; 20. Plate container; 200, base; 201, heat dissipation surface; 202, heat exchange surface; 203, receiving cavity; 204, liquid inlet; 205, liquid outlet; 21, translucent panel; 22, upright peripheral wall; 30, radiator; 40 , Reflector; 2. Auxiliary device.

The above main component symbol descriptions are combined with the drawings and implementation methods to further improve the present invention. Detailed step by step instructions.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of this creation, all other embodiments obtained by those who are generally familiar with this technology without making creative efforts fall within the scope of protection of this creation.

It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is said to be "set on" another component, it can be placed directly on the other component or there may be an intermediate component present at the same time. When a component is said to be "anchored" to another component, it can be directly affixed to the other component or there may be an intervening component present as well.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the invention are only for the purpose of describing specific embodiments and are not intended to limit the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Considering that every degree the operating temperature of photovoltaic modules increases, their power generation efficiency will decrease by 0.4%. Especially in summer, the surface temperature of photovoltaic modules can reach more than 70°C, and the internal operating temperature can reach more than 100°C, resulting in poor power generation efficiency. dropped by about 30%. In current practice, the heat dissipation of solar photovoltaic modules mainly relies on natural ventilation for cooling. However, the cooling effect of this method is very poor and cannot effectively reduce the operating temperature of photovoltaic modules, which greatly affects the application and promotion of photovoltaic power generation. In order to solve the above problems, this application proposes a plate container, lowered Warm-type photovoltaic power generation devices and solar photovoltaic power generation equipment can use plate containers containing light-transmitting liquids to effectively reduce the operating temperature of photovoltaic components, which helps to improve the efficiency of photovoltaic power generation and facilitates promotion and application.

Referring to FIGS. 1 to 3 , a first embodiment of the present invention provides a cooling photovoltaic power generation device 1 , which is suitable for generating electricity using sunlight. Specifically, the above-mentioned cooling photovoltaic power generation device 1 may include a solar photovoltaic module 10 and a plate container 20 . The above-mentioned solar photovoltaic module 10 has a light-receiving surface 100 for receiving the sunlight to generate photovoltaic power. The plate container 20 has a heat dissipation surface 201, a heat exchange surface 202 and a receiving cavity 203 located between the heat dissipation surface 201 and the heat exchange surface 202, and the heat exchange surface 202 of the plate container 20 is attached to the above surface face to face. The above-mentioned light-receiving surface 100 of the solar photovoltaic module 10. The base 200 on the above-mentioned plate container 20 for providing the above-mentioned heat dissipation surface 201 and the above-mentioned heat exchange surface 202 is made of transparent material, and the above-mentioned receiving cavity 203 of the above-mentioned plate container 20 is used for accommodating the light-transmitting liquid W for the above-mentioned solar photovoltaic module. 10 Carry out heat exchange and cooling. It can be understood that the receiving cavity 203 of the plate container 20 of the present application may, but is not limited to, have a liquid injection port (not shown in the figure) for pouring the light-transmitting liquid W into the receiving cavity 203 .

It is worth noting that, as shown in Figure 2, the above-mentioned cooling photovoltaic power generation device 1 of the present application uses a plate container 20 made of transparent material to contain the light-transmitting liquid W, so that sunlight can pass through the plate container 20. The light-receiving surface 100 of the solar photovoltaic component 10 is irradiated to ensure the normal progress of photovoltaic power generation; on the other hand, the heat exchange surface 202 of the plate container 20 is face-to-face attached to the above-mentioned solar photovoltaic component 10 The light-receiving surface 100 increases the heat exchange area and improves the heat exchange efficiency, which helps to reduce the operating temperature of the solar photovoltaic module 10, thereby preventing the solar photovoltaic module 10 from reducing the power generation efficiency due to the increase in operating temperature.

It is understandable that in addition to using natural air cooling to dissipate and cool solar panels, existing technical solutions also use heat exchange equipment to dissipate and cool them, which are usually only used on the non-light-receiving surface of the solar panels. (such as the back) lay out coiled pipes or row pipes, and use the water flowing in the pipes to absorb heat to achieve a cooling effect. However, on the one hand, there is no surface contact between the coiled tube or row tube and the solar panel, resulting in a small heat exchange area and a large thermal resistance, resulting in poor heat exchange efficiency; on the other hand, the non-light-receiving surface of the solar panel is usually equipped with Various devices such as junction boxes or external wire joints cause the coiled pipes or row pipes to avoid such devices, which further compresses the heat exchange area and prevents good cooling effects.

More specifically, the light-transmitting liquid W contained in the receiving cavity 203 of the cooling photovoltaic power generation device 1 of the present application may be, but is not limited to, implemented as an infrared absorbing liquid such as water that can absorb infrared light.

It is worth noting that since the heat exchange surface 202 of the plate container 20 of the present application is face to face with the light receiving surface 100 of the solar photovoltaic module 10, the sunlight first passes through the receiving cavity 203 of the plate container 20. The water contained in the solar photovoltaic module 10 is then irradiated to the light-receiving surface 100 of the above-mentioned solar photovoltaic module 10 to generate electricity. Therefore, while the water acts as a heat-absorbing medium, it can absorb the infrared light in the sunlight to reduce the total amount of light irradiated to the light-receiving surface 100. heat, thereby further reducing the operating temperature of the above-mentioned solar photovoltaic module 10.

In addition, according to calculations: one centimeter of water layer can reduce the total heat of solar radiation by 20%, and of the 20% reduction in heat, 90% of the heat comes from infrared light greater than 1100 nanometers, but this part of infrared light cannot Participate in photovoltaic power generation. In other words, due to the power generation principle of the above-mentioned solar photovoltaic module 10, after infrared light with a wavelength greater than 1100 nanometers is irradiated to the above-mentioned light-receiving surface 100 of the above-mentioned solar photovoltaic module 10, it is not only unable to participate in photoelectric conversion to form electrical energy, but will be converted into Thermal energy becomes the main source of heat to improve the above-mentioned solar photovoltaic module 10. This application The above-mentioned cooling photovoltaic power generation device 1 can not only use the above-mentioned plate container 20 containing water to exchange heat and cool down the above-mentioned solar photovoltaic module 10, but also can use the water contained in the above-mentioned plate container 20 to absorb more than 1100 nanometers of solar energy. meters of infrared light to reduce the heat generated at the above-mentioned solar photovoltaic module 10, greatly improve the cooling effect, and ensure that the operating temperature of the above-mentioned cooling photovoltaic power generation device 1 can be effectively reduced, thereby improving power generation efficiency.

According to the above embodiment of the present application, as shown in FIGS. 3 and 4 , the base 200 of the plate container 20 may be, but is not limited to, implemented as a light-transmitting panel 21 , such as a glass panel, to ensure that sunlight can pass through. While the plate container 20 is irradiating the light-receiving surface 100 of the solar photovoltaic module 10, it can also provide a flat heat exchange surface 202 to closely fit the light-receiving surface 100 of the solar photovoltaic module 10 to reduce the risk of damage. Reduce the thermal resistance between the two and improve heat exchange efficiency.

It can be understood that in other examples of the present application, the base 200 of the plate container 20 can also be, but is not limited to, made of polyvinylidene fluoride (PVDF for short), polyvinyl fluoride (PVF for short), polycarbonate Polyester (PC for short), polymethyl methacrylate (PMMA for short), styrene dimethyl methacrylate copolymer (SMMA for short), polyethylene (PE for short), polyvinyl chloride (PVC for short), polystyrene Hard panels or soft panels are made of various organic materials such as (PS for short), polyethylene terephthalate (PET for short), polypropylene (PP for short), nylon (PA for short) or polyvinyl alcohol (PVA for short). As long as the film can be adhered to the light-receiving surface 100, allow sunlight to pass through, and form the receiving cavity 203, this will not be described again in this application.

For example, as shown in FIGS. 3 and 4 , the plate container 20 may include two translucent panels 21 and an upright peripheral wall 22 , and the two translucent panels 21 are spaced apart from the upright peripheral wall 22 . On the upper and lower sides, the above-mentioned receiving cavity 203 is formed between the two above-mentioned light-transmitting panels 21, thereby obtaining a flat container for containing water. In other words, the above plate capacity The translucent panel 21 located on the lower side of the upright peripheral wall 22 in the container 20 directly provides a flat heat exchange surface 202, and the translucent panel 21 located on the upper side of the upright peripheral wall 22 in the plate container 20 directly provides a flat heat dissipation surface 201. , so that after the plate container 20 is stacked and installed on the light-receiving surface 100 of the solar photovoltaic module 10, the heat exchange surface 202 of the plate container 20 is closely attached to the light-receiving surface 100 of the solar photovoltaic module 10. Heat is exchanged and the heat dissipation surface 201 of the plate container 20 is exposed for heat dissipation, which helps to reduce the operating temperature of the solar photovoltaic module 10 .

Depending on the situation, the light-transmitting panel 21 of the plate container 20 can be implemented as tempered glass, and the upright peripheral wall 22 of the plate container 20 can be implemented as a square-shaped frame. The square-shaped frame is respectively bonded to two The periphery of the above-mentioned tempered glass is used to make a flat container. It can be understood that in this example of the present application, the upright peripheral wall 22 of the above-mentioned plate container 20 may be, but is not limited to, made of metal or plastic; however, in other examples of the present application, the above-mentioned plate container 20 may be made of metal or plastic. The above-mentioned upright peripheral wall 22 can also be implemented as tempered glass, and the above-mentioned translucent panel 21 and the above-mentioned upright peripheral wall 22 of the above-mentioned plate container 20 can be integrally formed, which will not be described again in this application.

Preferably, the thickness of the receiving cavity 203 of the above-mentioned plate container 20 is between 3 mm and 15 mm; that is, the thickness of the water layer contained in the above-mentioned plate container 20 is between 3 mm and 15 mm, so as to reduce the risk of blocking sunlight. While visible light is transmitted, it effectively filters out the infrared light in sunlight.

Depending on the situation, the above-mentioned plate container 20 may further include a support body, wherein the above-mentioned support body is correspondingly disposed in the above-mentioned receiving cavity 203 of the above-mentioned plate container 20 to support the above-mentioned heat dissipation surface 201 and the above-mentioned heat exchange surface 202 of the above-mentioned plate container 20 . , to prevent the heat dissipation surface 201 and/or the heat exchange surface 202 from being dented or convex. Preferably, the above-mentioned support body corresponds to the above-mentioned sun The joints of the cells in the photovoltaic module 10 can be stably supported while avoiding interference with the power generation of the cells. It can be understood that the above-mentioned support body of the above-mentioned plate container 20 may be, but is not limited to, made of transparent material, which will not be described in detail in this application.

It is worth noting that, taking water and glass as the light-transmitting liquid W and the matrix 200 respectively, the specific heat capacity of water is 4100J/(kg*K), the density of water is 1g/cm ³ , and the specific heat capacity of glass is 800J/(kg *K), the density of glass is 2.5g/cm ³ , the specific heat capacity of the silicon wafer in the above-mentioned solar photovoltaic module 10 is approximately 700J/(kg*K), and the thickness of the silicon wafer is between 180um and 200um. Assuming that the thickness of the water layer is 10mm and the thickness of the tempered glass in the above-mentioned solar photovoltaic module 10 is 3mm, the heat storage capacity of the above-mentioned plate container 20 is 6.8 times that of the solar photovoltaic module 10, and the greater heat storage capacity also means that if The heat can raise the temperature of the above-mentioned solar photovoltaic module 10 by 68°C, but the same heat can only raise the water temperature by 10°C. In other words, the large cavity stores enough water to cause a large temperature difference between the water used as the heat exchange medium and the heating object. The larger the temperature difference, the faster the battery panel dissipates heat. In this way, the above-mentioned plate container 20 can reduce the temperature of the above-mentioned solar photovoltaic module 10 by 58°C, and the 10mm thick water layer can weaken about 20% of solar radiation heat, so that the working temperature of the above-mentioned solar photovoltaic module 10 can be close to the water temperature, which can theoretically increase The power generation capacity is 10%-25%.

In addition, in order to further improve the heat exchange efficiency of the cooling photovoltaic power generation device 1, as shown in Figures 1 and 3, the plate container 20 of the cooling photovoltaic power generation device 1 of the present application is also provided with the receiving cavity 203. The liquid inlet 204 and liquid outlet 205 are connected, wherein the liquid inlet 204 of the above-mentioned plate container 20 is used to replenish the cold light-transmitting liquid W to the above-mentioned receiving cavity 203, and the above-mentioned liquid outlet 205 of the above-mentioned plate container 20 is used to store the above-mentioned The hot light-transmitting liquid W in the cavity 203 is discharged, so that the light-transmitting liquid W flows in the above-mentioned receiving cavity 203 to improve the heat exchange efficiency.

Preferably, the above-mentioned liquid inlet 204 is located at the lower part of the above-mentioned plate container 20, Moreover, the liquid outlet 205 is located at the upper part of the plate container 20 to ensure that the light-transmitting liquid W always fills the receiving cavity 203 while flowing in the receiving cavity 203, which helps to improve the heat exchange efficiency and filter out infrared light. efficiency.

Depending on the situation, as shown in Figure 1, the cooling photovoltaic power generation device 1 may further include a radiator 30, wherein the radiator 30 is connected to the liquid inlet 204 and the liquid outlet 205 of the plate container 20 through pipes, respectively. It is used to dissipate heat from the hot liquid flowing out of the above-mentioned receiving cavity 203 through the above-mentioned liquid outlet 205, and transport the cool liquid after heat dissipation to the above-mentioned receiving cavity 203 through the above-mentioned liquid inlet 204, so that the light-transmitting liquid W can be recycled, and there is Helps save resources while improving heat exchange efficiency. It can be understood that a water pump can be provided in the pipe between the above-mentioned radiator 30 and the above-mentioned plate container 20 to promote the circulation flow of the liquid; in addition, the radiator 30 mentioned in this application can be, but is not limited to, implemented as such. Cooling facilities such as heat dissipation containers with fins or needle-shaped heat sinks are sufficient as long as they can reduce the temperature of the light-transmitting liquid W and supply the cooled light-transmitting liquid W to the above-mentioned plate container 20. This application is suitable for This will not be described again.

It is worth noting that in the first example of the present application, as shown in FIG. 4 , the solar photovoltaic module 10 of the cooling photovoltaic power generation device 1 of the present application usually includes tempered components stacked in sequence from top to bottom. Glass 11, photovoltaic cells 12 and backsheet 13, and the above-mentioned tempered glass 11 and the above-mentioned backsheet 13 are glued to the opposite sides of the above-mentioned photovoltaic cells 12 through light-transmitting adhesive films 14 to complete the above-mentioned solar photovoltaic module 10 Encapsulation. At this time, the plate container 20 only needs to be stacked and installed on the tempered glass 11 of the solar photovoltaic module 10 so that the heat exchange surface 202 of the plate container 20 is attached to the surface of the tempered glass 11. The above-mentioned cooling photovoltaic power generation device 1 is assembled to use the light-transmitting liquid W contained in the above-mentioned plate container 20 to dissipate heat and cool down the above-mentioned light-receiving surface 100 of the above-mentioned solar photovoltaic module 10 (such as the front surface of the above-mentioned solar photovoltaic module 10), effectively Reduce the above-mentioned photovoltaic cells of the above-mentioned solar photovoltaic module 10 The temperature is controlled on the chip 12 to improve the power generation efficiency.

Depending on the situation, the above-mentioned light-transmitting adhesive film 14 may be implemented as, but is not limited to, an adhesive film made of polyethylene-polyvinyl acetate copolymer, which is referred to as EVA adhesive film.

Depending on the situation, an additional ultraviolet absorber and/or light stabilizer may be added to the water contained in the plate container 20 of the cooling photovoltaic power generation device 1 of the present application to absorb ultraviolet rays in sunlight to prevent ultraviolet rays from damaging the above-mentioned water. The EVA film causes the light-transmitting film to age and turn yellow, which helps to further extend the service life of the above-mentioned cooling photovoltaic power generation device 1. This is because the aging and yellowing of the light-transmitting film will affect the light transmittance, causing the photovoltaic modules to deteriorate in the long term. Performance degradation occurs during use.

It is worth noting that in the first example of the present application, the plate container 20 may be, but is not limited to, directly attached to the surface of the tempered glass 11 of the solar photovoltaic module 10 to assemble the cooling photovoltaic power generation unit. Device 1. In other words, this application only needs to attach the above-mentioned plate container 20 to the surface of the existing solar panel, that is, the existing solar panel can be transformed into the above-mentioned cooling photovoltaic power generation device 1 without the need to disassemble or change the existing solar panel. The original structure reduces the difficulty and cost of transformation, but can effectively improve power generation efficiency and facilitate promotion and application.

In addition, in the second example of this application, as shown in FIG. 5 , the above-mentioned solar photovoltaic components 10 in the above-mentioned cooling photovoltaic power generation device 1 of this application may also only include components glued by the above-mentioned light-transmitting adhesive film 14 The above-mentioned photovoltaic cells 12 and the above-mentioned backsheet 13 do not include the above-mentioned tempered glass 11 . At this time, the plate container 20 is directly bonded to the surface on the light-receiving surface side of the photovoltaic cell sheet 12 of the solar photovoltaic module 10 through the light-transmitting adhesive film 14 to assemble the cooling photovoltaic power generation device 1 . In this way, the above-mentioned cooling photovoltaic power generation device 1 of the present application can use the above-mentioned plate container 20 to replace the original tempered glass, which not only eliminates the need for tempered glass The glass is used to reduce costs, and can also reduce the thermal resistance between the photovoltaic cells 12 and the plate container 20 and improve the heat exchange efficiency.

In other words, in the second example of the present application, the plate container 20 is integrated into the solar photovoltaic module 10 , that is, the plate container 20 and the solar photovoltaic module 10 are directly packaged in the same module in the production factory. Within the framework, it helps to improve the overall structural stability of the above-mentioned cooling photovoltaic power generation device 1 and reduce manufacturing costs.

It is worth noting that in the above-mentioned first and second examples of the present application, the above-mentioned backsheet 13 in the above-mentioned solar photovoltaic module 10 of the above-mentioned cooling photovoltaic power generation device 1 may be an opaque backsheet, that is, the above-mentioned solar The photovoltaic module 10 has only one light-receiving surface 100 for single-sided power generation; and in some other examples of this application, the back plate 13 of the solar photovoltaic module 10 can also be a glass back plate, that is, the solar photovoltaic module 10 Having two of the above-mentioned light-receiving surfaces 100 for double-sided power generation, in this case, the above-mentioned cooling photovoltaic power generation device 1 of the present application may include two of the above-mentioned plate containers 20, and the two above-mentioned plate containers 20 are respectively stacked on the above-mentioned solar energy The front and back of the photovoltaic module 10 can further increase the heat exchange area and improve the heat exchange efficiency.

Illustratively, in the above-mentioned third example of the present application, as shown in FIG. 6 , the above-mentioned solar photovoltaic module 10 in the above-mentioned cooling photovoltaic power generation device 1 of the present application may also only include the above-mentioned photovoltaic cells 12, and The two above-mentioned plate containers 20 are respectively glued to the front and back of the above-mentioned photovoltaic cells 12 through the above-mentioned light-transmitting adhesive film 14 to replace the original tempered glass and back plate, thereby minimizing thermal resistance and improving heat transfer. efficiency, thereby more effectively reducing the operating temperature of the above-mentioned solar photovoltaic module 10 and improving power generation efficiency. It can be understood that in other examples of this application, the two plate containers 20 can also be glued to the surface of the tempered glass and the back plate respectively through the light-transmitting adhesive film 14, and can still be enlarged by increasing the size of the plate container. heat exchange area, improve Thermal efficiency can effectively reduce the operating temperature of the above-mentioned solar photovoltaic module 10 and improve the power generation efficiency, which will not be described in detail in this application.

It is worth noting that existing solar panels cannot use additional reflectors to increase their luminous flux due to poor heat dissipation efficiency. However, the cooling photovoltaic power generation device 1 of the present application can effectively reduce the solar energy through the plate container 20. The operating temperature of the photovoltaic module 10 therefore makes it possible for the above-mentioned cooling photovoltaic power generation device 1 of the present application to increase the luminous flux of the above-mentioned solar photovoltaic module 10 by providing additional reflectors to maximize the power generation.

Illustratively, as shown in FIG. 7 , in the fourth example of the present application, the above-mentioned cooling photovoltaic power generation device 1 may also include a reflector 40 , and the above-mentioned reflector 40 is configured correspondingly for reflecting sunlight. to the light-receiving surface 100 of the solar photovoltaic component 10 to increase the luminous flux of sunlight received by the solar photovoltaic component 10 . It can be understood that although the heat generated by the above-mentioned solar photovoltaic module 10 will increase with the increase of luminous flux, the above-mentioned plate container 20 can well perform heat exchange and cooling of the above-mentioned solar photovoltaic module 10 to ensure that the above-mentioned solar photovoltaic module 10. The working temperature is maintained at normal status to ensure high power generation efficiency. At the same time, the sunlight reflected by the reflector 40 will first pass through the plate container 20 and then illuminate the light-receiving surface 100 of the solar photovoltaic module 10. In this way, the water contained in the plate container 20 can also be absorbed. Infrared light with a wavelength greater than 1100 nanometers in sunlight can reduce the heat generated at the above-mentioned solar photovoltaic module 10, greatly improve the cooling effect, and ensure that the operating temperature on the above-mentioned cooling photovoltaic power generation device 1 can be effectively reduced, thereby improving power generation efficiency. .

According to another aspect of the present application, as shown in Figure 8, one embodiment of the present application can further provide a solar photovoltaic power generation equipment, which can include the above-mentioned cooling photovoltaic power generation device 1 and auxiliary device 2, and the above-mentioned auxiliary device 2 can be electrically connected to the above cooling type The photovoltaic power generation device 1 is used to process the electric energy generated by the above-mentioned cooling photovoltaic power generation device 1 for use. It can be understood that the above-mentioned auxiliary device 2 of the above-mentioned solar photovoltaic power generation equipment may, but is not limited to, include a DC converter and/or a voltage boosting device, etc., so that the electric energy generated by the above-mentioned cooling photovoltaic power generation device 1 can be converted into directly used Or grid-connected electric energy, which will not be described in this application.

It is worth noting that it is well known that there are three forms of heat exchange in objects: conduction, convection and radiation. The coiled tubes arranged on the back of the solar panel in the previous technology not only absorb the heat of the back panel, but also dissipate heat to the air behind the back panel. Convection is the main way of air heat exchange. The characteristic of convection heat transfer is that the hot air flows upward, so That is to say, the heat is sent back to the solar panel, so the back water cooling solution needs to use additional water pipes and pumps to transport hot water out to use external heat dissipation devices to dissipate heat, instead of directly dissipating heat to the back panel. in the air. However, the above-mentioned cooling photovoltaic power generation device 1 of the present application directly attaches the plate container to the upper surface of the solar cell panel, so that the lower surface of the plate container can be used as the interface with the solar cell without using an external heat dissipation device. The heat exchange surface in contact with the plate is used as the heat dissipation surface, and the upper plate surface of the plate container is used as the heat dissipation surface. With the help of the large area and small thickness of water convection between the two layers of plates, the functions of the heat dissipation device and the heat exchange device are superimposed on each other, which helps To improve the cooling effect. In addition, the above-mentioned cooling photovoltaic power generation device 1 of this application directly discharges heat to the air, and the upward flow of hot air does not return the heat to the solar panel.

It can be understood that the water pumps, water pipes and external radiators mentioned in this application are only optional for the overall heat dissipation and cooling solution, not essential items. This is because the solution of generating electricity while using electricity for cooling is There is always a shortcoming in economic feasibility. The above-mentioned cooling photovoltaic power generation device 1 in this application can achieve effective cooling without consuming electricity, which greatly increases its economic feasibility.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, , should be considered to be within the scope recorded in this manual.

The above-described embodiments only express several implementation modes of the present invention. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those who are generally familiar with this technology, certain modifications and improvements can be made without departing from the concept of this invention, and these all fall within the scope of protection of this invention. Therefore, the scope of protection of this creative patent should be subject to the attached claims.

1: Cooling photovoltaic power generation device

10:Solar photovoltaic modules

20: Plate container

100:Light-receiving surface

201:Heating surface

202:Heat exchange surface

203:Containment chamber

W: translucent liquid

Claims (12)

A plate container used for cooling solar photovoltaic modules, characterized in that: the plate container has a heat dissipation surface, a heat exchange surface and a receiving cavity located between the heat dissipation surface and the heat exchange surface, and the heat exchanger of the plate container The surface is used to be attached face-to-face to the light-receiving surface of the solar photovoltaic module, wherein the base body on the above-mentioned plate container that provides the above-mentioned heat dissipation surface and the above-mentioned heat exchange surface is made of transparent material, and the above-mentioned receiving cavity of the above-mentioned plate container is used for storage. Translucent liquid is used to exchange heat and cool down the solar photovoltaic module. The plate container of claim 1, wherein the plate container includes two light-transmitting panels and an upright peripheral wall, and the two above-mentioned light-transmitting panels are spaced apart on the upper and lower sides of the above-mentioned upright peripheral wall, so that between the two above-mentioned light-transmitting panels The above-mentioned receiving cavity is formed between the panels. The plate container of claim 1, wherein the light-transmitting liquid contained in the receiving cavity of the plate container is water. The plate container of claim 1, wherein the plate container is provided with a liquid inlet and a liquid outlet connected to the receiving cavity, wherein the liquid inlet of the plate container is used to replenish cold light-transmitting liquid to the receiving cavity, and the plate container The above-mentioned liquid outlet of the container is used to discharge the hot light-transmitting liquid in the above-mentioned receiving cavity. The plate container of claim 4, wherein the liquid inlet and the liquid outlet are connected to the radiator through a pipe. The plate container of claim 5, wherein a water pump is also disposed between the radiator and the plate container to promote the flow of the light-transmitting liquid. A cooling-type photovoltaic power generation device for generating electricity using sunlight, characterized by comprising: a solar photovoltaic module, wherein the above-mentioned solar photovoltaic module has a light-receiving surface for receiving the sunlight for photovoltaic power generation; and as claimed in claim 1 The plate container according to any one of 6 to 6, wherein the plate container is correspondingly attached to the light-receiving surface of the solar photovoltaic module for heat exchange and cooling of the solar photovoltaic module. Such as the cooling photovoltaic power generation device of claim 7, wherein the above-mentioned solar photovoltaic components include tempered glass, photovoltaic cells and backsheets stacked in sequence from top to bottom, and the above-mentioned tempered glass and the above-mentioned backsheet are connected by light-transmitting adhesive The film is glued to the opposite sides of the photovoltaic cell sheet, wherein the plate container is stacked and installed on the tempered glass of the solar photovoltaic module. Such as the cooling photovoltaic power generation device of claim 7, wherein the above-mentioned solar photovoltaic component includes photovoltaic cells and a back sheet, and the above-mentioned plate container and the above-mentioned back sheet are directly glued to the above-mentioned photovoltaic cell of the above-mentioned solar photovoltaic component through a light-transmitting adhesive film. The relative surface of the piece. Such as the cooling photovoltaic power generation device of claim 7, wherein the above-mentioned solar photovoltaic components include photovoltaic cells, and the two above-mentioned plate containers are respectively glued to the above-mentioned solar photovoltaic cells through light-transmitting adhesive films. The opposite surface of the above-mentioned photovoltaic cells of the voltaic module. The cooling photovoltaic power generation device of claim 7, wherein the cooling photovoltaic power generation device further includes a reflector, and the reflector is correspondingly configured to reflect the sunlight to the light-receiving surface of the solar photovoltaic component. A solar photovoltaic power generation equipment, characterized by comprising: a cooling photovoltaic power generation device as claimed in claim 7; and an auxiliary device, wherein the auxiliary device is electrically connected to the cooling photovoltaic power generation device for processing the cooling photovoltaic power generation device. The electrical energy generated by the power generation device.