CN203165924U - 3D packaged high-efficiency photovoltaic assembly with box structure - Google Patents

Abstract

A high-efficiency photovoltaic module with box structure 3D packaging, which mainly includes: box body, ultra-clear glass, aluminum alloy packaging frame, equal three-sided cone battery components, bottom plate and terminal; the walls around the box body are from bottom to bottom The box body is installed and fixed together with the ultra-clear glass through the aluminum alloy packaging frame; the three-sided cone battery components are fixed on the bottom plate in an orderly crossing manner, and are installed on the box through the bottom plate. Inside the body; the three-sided cone battery component is composed of a battery sheet packaging plate and a base; the battery sheet packaging plate is arranged in an equi-three-sided cone type; the battery sheet packaging plate is composed of solid sealant, crystalline silicon cells, It is composed of bakelite board; or triangular crystalline silicon cells are arranged on the bakelite board and solidified by dripping glue; it can increase the lighting area of the battery sheet under the unit packaging area of the module, and fully absorb sunlight. Direct light and scattered light effectively improve the photoelectric conversion efficiency of the module.

Description

A high-efficiency photovoltaic module with box structure 3D packaging

technical field

The utility model relates to a high-efficiency photovoltaic module with a box structure 3D package, which belongs to the technical field of solar photovoltaic power generation.

Background technique

In recent years, the upsurge of solar energy research has promoted the continuous development of the photovoltaic power generation industry, the efficiency of photovoltaic power generation components has been continuously improved, and the cost of photovoltaic power generation has gradually approached the cost of conventional energy generation. However, the existing photovoltaic modules are all in the form of planar packaging, which mainly absorb direct sunlight. According to experiments, in addition to direct light, solar radiation also contains a large amount of scattered light resources: under strong light, about 10-20% of the scattered light Light; in weak light, scattered light is the main one.

Therefore, it is of great significance to break the traditional planar packaging component form and adopt a reasonable 3D packaging component form to effectively absorb scattered light resources to further improve the actual photoelectric conversion efficiency of the component.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies of the existing technology, and propose a high-efficiency photovoltaic module with a box structure 3D package. The lighting area of the cell under the unit packaging area can fully absorb the scattered light resources.

The purpose of this utility model is accomplished through the following technical scheme, which mainly includes: box body, ultra-clear glass, aluminum alloy packaging frame, three-sided cone battery components, bottom plate and terminal; The upper part is tilted outward to form a certain angle θ; the box body is installed and fixed together with the ultra-clear glass through the aluminum alloy packaging frame; The bottom plate is installed in the box.

The three-sided cone battery part is composed of a battery chip packaging plate and a base; the battery chip packaging plate is arranged in a three-sided cone type; Composition; or triangular crystalline silicon cells are arranged on a bakelite board, and are formed by dripping and curing with a solid sealant.

The positive and negative electrode wires leading out uniformly are arranged on the battery sheet packaging board.

The electrode wires of the cell packaging board are uniformly converging to lead out the positive and negative electrode wires.

The electrode wires of the three-hedron battery components are uniformly converged to the connection terminals, and the positive and negative electrodes can be provided with diodes to limit backflow in the outlets.

The utility model is also suitable for making solar thin film cells into 3D packaged photovoltaic modules.

The 3D packaged high-efficiency photovoltaic module with a box structure described in the utility model has the following obvious beneficial effects: the cells in the component are designed to be arranged in a three-sided cone-shaped arrangement, and the lighting area of the cells under the unit package area of the component is improved, fully Absorbing direct light and scattered light contained in sunlight effectively improves the photoelectric conversion efficiency of the module. The utility model is equipped with a tracking system, which can exert the best efficiency. The efficiency of the module is about 20%-30% higher than that of the traditional planar packaging module. The effect is more pronounced in light environment areas.

Description of drawings

Fig. 1 is a schematic diagram of the principle of the 3D-encapsulated high-efficiency photovoltaic module of the present invention.

Fig. 2 is a schematic diagram of a 3D-encapsulated high-efficiency photovoltaic module described in the present invention.

Fig. 3 is a schematic cross-sectional view of a 3D-encapsulated high-efficiency photovoltaic module of the present invention.

Fig. 4 is an enlarged schematic cross-sectional view of the package structure of the 3D-packaged high-efficiency photovoltaic module of the present invention.

Fig. 5 is a schematic diagram of the three-hedral cone battery components described in the present invention.

Fig. 6 is a schematic diagram of the cell packaging board described in the present invention.

Fig. 7 is a schematic enlarged cross-sectional view of the cell packaging plate described in the present invention.

Detailed ways

The description of the reference numerals is as follows: 1-box body, 2-ultra-clear glass, 3-aluminum alloy package frame, 4-equal three-sided cone battery components, 5-bottom plate, 6-terminal, 4-1-cell package plate, 4-2-base, 4-1-1-solid sealant, 4-1-2-crystalline silicon cell, 4-1-3-glue board.

The utility model will be further described below in conjunction with the accompanying drawings: shown in Figures 1, 2, 3, and 4, the utility model mainly includes a casing 1, an ultra-clear glass 2, an aluminum alloy package frame 3, and other trihedron battery parts 4, Bottom plate 5 and terminal 6; the wall surface around the box 1 is inclined from bottom to top to form an angle of inclination θ; the box 1 is installed and fixed on the aluminum alloy package frame 3 and ultra-clear glass 2 Together; the trihedral battery components 4 are fixed on the bottom plate 5 in an orderly crossing manner, and are installed in the box body 1 through the bottom plate 5 .

As shown in FIG. 5 , the equi-trihedron battery component 4 can be composed of three battery sheet packaging plates 4-1 and a base 4-2;

As shown in Figures 6 and 7, the battery chip packaging board 4-1 can be composed of a solid sealant 4-1-1, a crystalline silicon battery chip 4-1-2, and a bakelite board 4-1-3; The cell packaging board 4-1 can be formed by arranging the crystalline silicon cell 4-1-2 on the bakelite board 4-1-3, and curing by dripping glue with the sealing glue 4-1-1; the crystalline silicon Cells are 4-1-2, and the size specification can be a triangular cut sheet with an L of 125 mm or 156 mm. The height of the module can be flexibly adjusted to meet different market needs.

Example:

Shown in accompanying drawing 1,2,3,4,5,6,7, the utility model is mainly by box body 1, ultra-clear glass 2, aluminum alloy encapsulation frame 3, etc. trihedral battery parts 4, base plate 5 and connection terminal 6 and so on, the arrangement of the battery slices is changed from the previous planar arrangement to an equilateral cone arrangement; the box body 1 can be made of plastic; the wall surface of the box body 1 is inclined from bottom to top outward. Angle θ, in this example θ is 76 ^° ; the aluminum alloy package frame 3 fixes the box body 1 and the ultra-clear glass 2 together; the bottom plate 5 can be made of plastic; the trihedron battery part 4 First cross and fix on the bottom plate 5 in an orderly manner, and then install it inside the box body 1 .

As shown in accompanying drawing 5, the said equal trihedron battery component 4 can be composed of three cell packaging boards 4-1 and one base 4-2; the base 4-2 can be an equal trihedron truncated Shape; the base 4-2 can be made of plastic.

As shown in accompanying drawings 6 and 7, the battery chip packaging board 4-1 can adopt the epoxy board process, and the described battery chip packaging board 4-1 can be made of solid sealing glue 4-1-1, crystalline silicon battery chip 4-1-2, composed of bakelite board 4-1-3; the crystalline silicon battery sheet 4-1-2, the size specification can be a triangular cutting sheet with an L of 156 mm, and the height of the component can be flexibly adjusted to meet different requirements. Market demand.

The battery sheet packaging board 4-1 has positive and negative electrode wires drawn out uniformly; the electrode wires of the battery sheet packaging board 4-1 in the three-hedron battery component 4 are uniformly converging to lead out the positive and negative electrode lines ; The electrode wires of the said trihedron battery components 4 are uniformly converged to the terminal 6, and the positive and negative electrodes can be added with diodes to limit backflow in the outlet.

The utility model is used in conjunction with a sunlight tracking system to maximize component efficiency.

According to the above improvements, under the same module area, the photoelectric conversion efficiency of the overall photovoltaic module is expected to increase by 20%-30% compared with the ordinary conventional module cells of the high-efficiency photovoltaic module with a box structure 3D package. The effect is more obvious in low-light environment areas.

Claims (5)

1. high-efficiency photovoltaic assembly that has body structure 3D encapsulation, it mainly comprises: casing, ultra-clear glasses, aluminium alloy packaging frame, etc. three face cone battery components, base plate and binding post; Wall is obliquely installed from bottom to top outward around it is characterized in that described casing; Described casing installs and fixes together by aluminium alloy packaging frame and ultra-clear glasses; Described intersection such as three face cone battery components such as grade is fixed on the base plate in an orderly manner, and is installed in the casing by described base plate.

2. the high-efficiency photovoltaic assembly that has body structure 3D encapsulation according to claim 1 is characterized in that described three face cone battery components such as grade are made up of battery sheet package board, pedestal; Described battery sheet package board is to wait three face cone formulas to arrange; Described battery sheet package board is made up of solid seal glue, crystal silicon cell sheet, bakelite plate; Or leg-of-mutton crystal silicon cell sheet is arranged on the bakelite plate, drips adhesive curing with solid seal glue and forms.

3. the high-efficiency photovoltaic assembly that has body structure 3D encapsulation according to claim 2 is characterized in that described battery sheet package board is provided with unified positive and negative electrode line of drawing.

4. the high-efficiency photovoltaic assembly that has body structure 3D encapsulation according to claim 2, the electrode wires unification that it is characterized in that described battery sheet package board is confluxed and is drawn the positive and negative electrode line.

5. the high-efficiency photovoltaic assembly that has body structure 3D encapsulation according to claim 2 is characterized in that the electrode wires unification of described three face cone battery components such as grade is flowed to binding post, positive and negative electrode can be equipped with the diode of the anti-stream of restriction in outlet.

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