CN108365033A - A kind of completely black polycrystalline efficient photovoltaic module and preparation method thereof - Google Patents

Abstract

The invention belongs to the field of photovoltaic power generation, and specifically relates to an all-black polycrystalline high-efficiency photovoltaic module and a manufacturing method thereof. In order to solve the existing problems that the blue color of polycrystalline photovoltaic modules cannot be made into real black modules for use in distributed systems, and the problems of low efficiency and glare pollution exist, the invention proposes an all-black polycrystalline high-efficiency photovoltaic module and its production method. The technical solution adopted by the invention is that an all-black polycrystalline high-efficiency photovoltaic module includes a polycrystalline black silicon cell and a frame, and also includes: a photovoltaic laminate, which is clamped with the frame; the photovoltaic laminate includes: a coating The glass layer is bonded to the first encapsulation film layer; the first encapsulation film layer is bonded to the solar cell layer; the solar cell layer is bonded to the second encapsulation film layer; the second encapsulation film layer is bonded to the back The board is bonded; the back board is snapped with the frame.

Description

An all-black polycrystalline high-efficiency photovoltaic module and its manufacturing method

technical field

The invention belongs to the field of photovoltaic power generation, and specifically relates to an all-black polycrystalline high-efficiency photovoltaic module and a manufacturing method thereof.

Background technique

With the rapid development of social economy and the continuous consumption of energy, people are increasingly aware of the limitations of non-renewable energy sources such as oil, and people are constantly trying to develop new energy sources, such as wind energy, tidal energy, solar energy, etc., to cope with the upcoming energy crisis. As an efficient, pollution-free renewable resource, solar energy has been gradually utilized by all walks of life, and the country is also vigorously supporting projects such as photovoltaic poverty alleviation. In recent years, distributed photovoltaic systems have developed rapidly. Due to people's requirements for roof appearance, black components occupy an important position in distributed photovoltaic systems.

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 the system operation; 3. Conventional black components are single crystal components, which has the problem of large light-induced attenuation.

Contents of the invention

In order to solve the above-mentioned problems that the blue color of polycrystalline photovoltaic components cannot be made into real black components for use in distributed systems, and the problems of low efficiency and glare pollution exist, the present invention proposes an all-black polycrystalline high-efficiency photovoltaic Components and methods of making them.

In order to achieve the purpose of the appeal, the technical solution adopted by the present invention is an all-black polycrystalline high-efficiency photovoltaic module, including polycrystalline black silicon cells and a frame, and also includes: a photovoltaic laminate, which is clamped with the frame; a photovoltaic layer The pressed piece includes: a coated glass layer bonded to the first packaging adhesive film layer; a first packaging adhesive film layer bonded to the solar cell layer; a solar cell layer bonded to the second packaging adhesive film layer; a second packaging adhesive film layer The film layer is bonded to the back plate; the back plate is clamped to the frame.

Preferably, the solar cell layer includes: a bus bar, bonded to the solar cell strings; several solar cell strings, connected in series through the bus bars, bonded to the first encapsulating adhesive film layer and the second encapsulating adhesive film layer.

Preferably, the solar cell string includes: interconnection bars welded to the solar cell sheets; several solar cell sheets connected in series through the interconnection bars. The coated glass layer has three black glazed layers. The backboard is a black backboard. The borders are also black borders. The backplane and frame are black, and the coated glass is made of three black-coated glazes to cover the bus bars, making the components completely black and anti-glare.

As a preference, a method for manufacturing an all-black polycrystalline high-efficiency photovoltaic module is suitable for the above-mentioned all-black polycrystalline high-efficiency photovoltaic module. The equipment and materials used include: polycrystalline black silicon cells, laser scribing machines, Welding machine, interconnection bar, heating table, laminated iron plate, EPE black film, bus bar, tempered glass, encapsulation material, coated glass layer with black glaze layer, black backplane, black frame frame and lamination machine.

Preferably, the manufacturing method includes the following steps: S1: cut the polycrystalline black silicon cells into half through a laser scribing machine to form solar cells; S2: under the action of a welding machine, several solar cells The sheets are connected in series through interconnecting strips to form a solar cell string; S3: Place the solar cell string on the heating table, and under the action of the heating table and the pressed iron plate, the EPE black film Paste on the lower surface of the interconnection bar; S4: Place the solar cell strings on the tempered glass, and connect the solar cells in series and parallel through the bus bar to form a solar cell layer; S5: Place the solar cell layer on the laminator, and place the solar cell layer on the laminator Under the action of the laminator, the first encapsulation film layer and the second encapsulation film layer are laminated on the two surfaces of the solar cell layer; S6: Under the action of the laminating machine, the coated glass layer with the black glaze layer and the black The backplane is respectively laminated to the first encapsulation film layer and the second encapsulation film layer to form an all-black polycrystalline high-efficiency photovoltaic electronic layer; Black polycrystalline high-efficiency photovoltaic modules. Polycrystalline black silicon cells are cut in half to make half-cell modules to increase the power of the modules.

Preferably, the specific temperature range in S3 is 80 to 100 degrees Celsius, and the specific pressure range in S3 is 5 to 10 N.

Beneficial effects created by the invention: (1) The back plate and the frame are black, and the coated glass is made of three black-coated glazes to cover the bus bars, so that the components are completely black and have an anti-glare effect. (2) Polycrystalline black silicon cells are cut in half to make half-chip modules to increase the power of the modules. (3) Making the components all black is beneficial for distributed systems.

Description of drawings

Figure 1: Schematic diagram of the front structure of an all-black polycrystalline high-efficiency photovoltaic module

Figure 2: Schematic diagram of the layered structure of solar cells and interconnectors

In the figure: 1. Frame, 2. Photovoltaic laminate, 3. Black film, 4. Interconnection strip, 5. Solar cells.

Detailed ways

Example:

An all-black polycrystalline high-efficiency photovoltaic module, including polycrystalline black silicon cells and a frame 1, and also includes: a photovoltaic laminate 2, which is clamped with the frame 1; the photovoltaic laminate 2 includes: a coated glass layer, connected to the first Bonding of the encapsulation film layer; the first encapsulation film layer, bonded to the solar cell layer; the solar cell layer, bonded to the second encapsulation film layer; the second encapsulation film layer, bonded to the backplane; , snapped into frame 1.

The solar cell layer includes: a bus bar, bonded to the solar cell strings; several solar cell strings, connected in series through the bus bars, bonded to the first encapsulation adhesive film layer and the second encapsulation adhesive film layer.

The solar cell string includes: interconnection bars 4 welded to solar cells 5 ; several solar cells 5 connected in series through interconnection bars 4 . The coated glass layer has three black glazed layers. The backboard is a black backboard. The border 1 is also a black border 1. Black is used for the backplane and frame 1, and three black-coated glazes are used for the coated glass to cover the bus bars, so that the components are completely black and have an anti-glare effect. The interconnection strips are pasted on one side of the lower surface of the solar cells.

A method for manufacturing an all-black polycrystalline high-efficiency photovoltaic module, which is suitable for the above-mentioned all-black polycrystalline high-efficiency photovoltaic module. The equipment and materials used include: polycrystalline black silicon cells, laser scribing machines, welding machines, Interconnection strip 4, heating table, pressed iron plate, EPE black film 3, bus bar, tempered glass, packaging material, coated glass layer with black glaze layer, black backplane, black frame frame 1 and laminating machine.

The manufacturing method includes the following steps: S1: cut the polycrystalline black silicon cells into half through a laser scribing machine to form solar cells 5; S2: under the action of a welding machine, several solar cells 5 Connect the solar cell strings in series through the interconnection bars 4; S3: Place the solar cell strings on the heating platform, and under the action of the heating platform and the pressing iron plate, put the EPE black film under a specific temperature range and a specific pressure. 3 Paste on the lower surface of the interconnection bar 4; S4: Place the solar cell strings on the tempered glass, connect the solar cells in series and parallel through the bus bar to form a solar cell layer; S5: Place the solar cell layer on the laminating machine, Under the action of the laminating machine, the first encapsulating film layer and the second encapsulating film layer are laminated on the two surfaces of the solar cell layer; S6: Under the action of the laminating machine, the coated glass layer with the black glaze layer is laminated and the black backplane are respectively laminated on the first encapsulation film layer and the second encapsulation film layer to form an all-black polycrystalline high-efficiency photovoltaic electronic layer; S7: snap the black frame frame 1 to the all-black polycrystalline high-efficiency photovoltaic electronic layer , forming an all-black polycrystalline high-efficiency photovoltaic module. Polycrystalline black silicon cells are cut in half to make half-cell modules to increase the power of the modules.

The specific temperature range in S3 is 80 to 100 degrees Celsius, and the specific pressure range in S3 is 5 to 10 N.

Black is used for the backplane and frame 1, and three black-coated glazes are used for the coated glass to cover the bus bars, so that the components are completely black and have an anti-glare effect. Polycrystalline black silicon cells are cut in half to make half-cell modules to increase the power of the modules. Making components all black is beneficial for distributed systems.

The all-black polycrystalline high-efficiency photovoltaic module can be installed in any place that will not cause physical impact. Because the module is completely black and has no glare pollution, it can be installed in airports or places with relatively large glare requirements.

Any person familiar with the art, without departing from the scope of the technical solution of the present invention, can use the methods and technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent of equivalent change Example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, which do not deviate from the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims (10)

1. a kind of completely black polycrystalline efficient photovoltaic module, including the black silicon cell of polycrystalline and frame, which is characterized in that further include：

Photovoltaic laminate is clamped with frame；

Photovoltaic laminate includes：

Coated glass layer, it is Nian Jie with the first packaging plastic film layer；

First packaging plastic film layer, it is Nian Jie with solar cell layer；

Solar cell layer, it is Nian Jie with the second packaging plastic film layer；

Second packaging plastic film layer, it is Nian Jie with backboard；

Backboard is clamped with frame.

2. a kind of completely black polycrystalline efficient photovoltaic module according to claim 1, which is characterized in that the solar cell Layer include：

Busbar, it is Nian Jie with solar cell string；

Several solar cell strings, are serially connected by busbar, Nian Jie with the first packaging plastic film layer and the second packaging plastic film layer.

3. a kind of completely black polycrystalline efficient photovoltaic module according to claim 2, which is characterized in that the solar cell String includes：

Interconnecting strip is welded with solar battery sheet；

Several solar battery sheets, are serially connected by interconnecting strip.

4. a kind of completely black polycrystalline efficient photovoltaic module according to claim 1, which is characterized in that the coated glass layer There are three black plating glaze layers.

5. a kind of completely black polycrystalline efficient photovoltaic module according to claim 1, which is characterized in that the backboard is black Backboard.

6. a kind of completely black polycrystalline efficient photovoltaic module according to claim 1, which is characterized in that the frame also black Frame.

7. a kind of production method of completely black polycrystalline efficient photovoltaic module is suitable for a kind of completely black polycrystalline as described in claim 1 Efficient photovoltaic module, which is characterized in that equipment and material used includes：

The black silicon cell of polycrystalline, laser scribing means, bonding machine, interconnecting strip, warm table, pressing iron plate, EPE black films, busbar, steel Change glass, encapsulating material, coated glass layer, black backboard, black surround frame and laminating machine with black plating glaze layer.

8. a kind of production method of completely black polycrystalline efficient photovoltaic module according to claim 7, which is characterized in that described Production method includes the following steps：

S1：The black silicon cell of polycrystalline by laser scribing means cut semi-processed, formation solar battery sheet；

S2：Under the action of bonding machine, several solar battery sheets are together in series by interconnecting strip, form solar cell String；

S3：Solar cell string is placed on warm table, under specific temperature range and specific pressure, in warm table and EPE black films are pasted onto to the lower surface of interconnecting strip under the action of pressing iron plate；

S4：Solar cell string is placed on tempered glass, solar cell connection in series-parallel is become by solar energy by busbar Battery layers；

S5：Solar cell layer is placed on laminating machine, under the action of laminating machine, by the first packaging plastic film layer and the second envelope Dress adhesive film is pressed together on two surfaces of solar cell layer；

S6：Under the action of laminating machine, by the coated glass layer with black plating glaze layer and black backboard respectively at the first packaging plastic Film layer and the lamination of the second packaging adhesive film are closed, and completely black polycrystalline high-efficiency photovoltaic electronic shell is formed；

S7：Black surround frame is clamped in completely black polycrystalline high-efficiency photovoltaic electronic shell, forms completely black polycrystalline efficient photovoltaic module.

9. a kind of production method of completely black polycrystalline efficient photovoltaic module according to claim 8, which is characterized in that described Specific temperature range in S3 is 80 to 100 degrees Celsius.

10. a kind of production method of completely black polycrystalline efficient photovoltaic module according to claim 8, which is characterized in that described S3 in specific pressure, ranging from 5 to 10 Ns.