CN206541828U - A kind of completely black efficient photovoltaic module - Google Patents

Abstract

The utility model relates to an all-black high-efficiency photovoltaic component, which solves the problem of glare pollution in the photovoltaic component. The device includes a frame and a photovoltaic laminate on the inside of the frame. The photovoltaic laminate includes a coated glass layer, a first packaging film layer, a solar cell layer, a second packaging film layer, and a back plate from top to bottom. Its features The solar cell layer includes a plurality of solar cells and interconnection bars, the solar cells are connected in series through the interconnection bars to form a number of solar cell strings, the ends of each solar cell string are connected in parallel through bus bars, and the back plate is a black back plate. The bus bar is arranged at the end of the all-black high-efficiency photovoltaic module, the front of the bus bar is provided with a black insulating shielding strip, and the frame is a black frame. The back panel of the utility model adopts black frame, and the bus bar surface is also covered with black insulating strips, so as to achieve the effect of anti-glare.

Description

An all-black high-efficiency photovoltaic module

technical field

The utility model belongs to the technical field of photovoltaic power generation, in particular to an all-black high-efficiency photovoltaic module.

Background technique

With the rapid development of society, people are increasingly aware of the limitations of non-renewable energy sources such as petroleum, and people are constantly trying to develop new energy sources to cope with the upcoming energy crisis. At the same time, energy sources such as petroleum and coal will inevitably pollute the environment during the use process. With the improvement of people's awareness of environmental protection, people's requirements for clean energy are also getting higher and higher. As an efficient, pollution-free renewable resource, solar energy has been gradually utilized by all walks of life. With the improvement of people's awareness of environmental protection, the development of distributed photovoltaic systems has been steadily advancing.

Photovoltaic modules are the key components of distributed photovoltaic systems, which undertake the important task of converting light energy into electrical energy. Photovoltaic modules are packaged in series by single cells, and high voltage can be obtained through series modules. get high current. Photovoltaic modules are the core part of solar power generation. As a key component of photoelectric conversion, there are still the following problems: 1. The conversion efficiency of black photovoltaic modules is about 16%, which makes the system occupy too much area; There is glare pollution in system operation.

Contents of the invention

The purpose of the utility model is to solve the problem of glare pollution in photovoltaic modules, and provide an all-black high-efficiency photovoltaic module. Another purpose of the utility model is to improve the light energy utilization rate per unit area of the photovoltaic module.

The technical solution adopted by the utility model to solve the technical problem is: a kind of all-black high-efficiency photovoltaic module, including a frame and a photovoltaic laminate inside the frame, and the photovoltaic laminate includes a coated glass layer, a first package from top to bottom The adhesive film layer, the solar cell layer, the second encapsulating adhesive film layer, and the back plate are characterized in that: the solar cell layer includes a plurality of solar cell sheets and interconnection strips, and the solar cell sheets are connected in series through the interconnection strips to form a plurality of solar cell strings, each The ends of the solar cell strings are connected in parallel through bus bars. The back plate is a black back plate. The bus bars are arranged at the ends of all black high-efficiency photovoltaic modules. Black frame. The backplane and frame of the device are all black, and the surface of the bus bar is also covered by black insulating shielding strips. The black backplane, frame, and insulating shielding strips will not produce reflections and reduce glare pollution.

Preferably, the interconnection strips are attached to the upper surface of the solar cells, and the upper surface of the interconnection strips is attached with an anti-glare film capable of deflecting and reflecting light. The device attaches an anti-glare film on the upper surface of the interconnection strip, and selects an anti-glare film that can deflect and reflect the incident light by more than 45 degrees. After the deflection and reflection of the sunlight at the position, it is irradiated on the solar cells through the secondary reflection of the coated glass for secondary utilization, so that the sunlight at the position blocked by the interconnection bar can be utilized again, and the utilization rate of light energy per unit area is improved. At the same time, the sunlight irradiating the position of the interconnection bar is reflected and used again, which also reduces the reflected light and plays an anti-glare effect.

Preferably, the anti-glare film is a redirection reflective film that deflects incident light by more than 45 degrees. The light redirecting film (LRF) produced by 3M can deflect the incident light at a certain angle and then reflect it. This device can choose the redirection reflective film labeled LRFT80, the vertically incident sunlight can be deflected and reflected by more than 45 degrees, and the reflected light can be reflected twice by the coated glass, which not only prevents glare, but also utilizes the sunlight irradiated on the interconnecting strips to improve The light energy utilization efficiency per unit area of photovoltaic modules.

In the utility model, the frame is black, and the surface of the bus bar is also covered with black insulating strips, which has the effect of anti-glare; the anti-glare film of deflection and reflection is pasted on the surface of the interconnection bar, and the sunlight irradiated to the position of the interconnection bar is protected. Secondary utilization, improve the utilization rate of light energy of photovoltaic modules.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is a schematic view of the front structure of the utility model.

Fig. 2 is a schematic diagram of the layered structure of the photovoltaic laminate of the present invention.

Fig. 3 is a layered structure diagram of the solar cell layer of the present invention.

In the figure: 1. Photovoltaic laminate, 2. Frame, 3. Black insulation masking strip, 4. Coated glass layer, 5. First encapsulation film layer, 6. Solar cell layer, 7. Second encapsulation film layer , 8. Backplane, 9. Anti-glare film, 10. Interconnection strips, 11. Solar cells.

detailed description

Below through specific embodiment and in conjunction with accompanying drawing, the utility model is further described.

Embodiment: an all-black high-efficiency photovoltaic module. As shown in FIG. 1 , the device includes a frame 2 , the inside of which is a photovoltaic laminate 1 , and the frame is a black frame. As shown in FIG. 2 , the photovoltaic laminate 2 includes a coated glass layer 4 , a first encapsulation film layer 5 , a solar cell layer 6 , a second encapsulation film layer 7 , and a back sheet 8 from top to bottom. The back plate is black back plate. The solar cell layer 6 includes solar cell sheets 11 and interconnection bars 10. There are multiple solar cell sheets 11, and a plurality of solar cell sheets are connected in series with each other through the interconnection bars 10 to form several solar cell strings. The ends of each solar cell string are connected in parallel through bus bars. The bus bar is arranged at both ends of the photovoltaic laminate 1 , the upper surface of the bus bar is covered with a black insulating shielding bar 3 , and the back of the bus bar has a back plate.

As shown in FIG. 3 , the interconnection strip 10 is pasted on the upper surface of the solar battery sheet 11 , and the upper surface of the interconnection strip is also pasted with an anti-glare film 9 that deflects light upward. The anti-glare film adopts the light redirecting film (LRF) produced by 3M Company, and the label is LRFT80. The redirection reflective film of this label can deflect the incident light by 45 degrees and then reflect it.

The device's back panel, frame, and insulation shielding strips are all black to reduce reflection and play an anti-glare effect. An anti-glare film is attached to the upper surface of the interconnection strip, and the anti-glare film that can deflect and reflect the incident light by more than 45 degrees is selected. After the deflection and reflection, it is irradiated onto the solar cells through the secondary reflection of the coated glass for secondary utilization, so that the sunlight at the position blocked by the interconnection strips can be reused, improving the utilization rate of light energy per unit area, and reducing the reflected light at the same time. Anti-glare effect.

Claims (3)

1. An all-black high-efficiency photovoltaic module, including a frame and a photovoltaic laminate inside the frame. The photovoltaic laminate includes a coated glass layer, a first packaging film layer, a solar cell layer, and a second packaging glue from top to bottom. The film layer and the back plate are characterized in that: the solar cell layer includes a plurality of solar cell sheets and interconnection bars, the solar cell sheets are connected in series with each other through the interconnection bars to form a plurality of solar cell strings, and the ends of each solar cell string are connected in parallel through bus bars. The back plate is a black back plate, the bus bar is arranged at the end of the all-black high-efficiency photovoltaic module, the front of the bus bar is provided with a black insulating masking strip, and the frame is a black frame. 2. An all-black high-efficiency photovoltaic module according to claim 1, characterized in that: the interconnection strip is attached to the upper surface of the solar battery sheet, and the upper surface of the interconnection strip is attached with a deflection reflector. Anti-glare film. 3. The all-black high-efficiency photovoltaic module according to claim 2, wherein the anti-glare film is a redirection reflective film that deflects incident light by more than 45 degrees.