Double-sided monocrystalline laminated photovoltaic module and manufacturing method thereof

A photovoltaic module and manufacturing method technology, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of increasing glass area, power difference, product backlog, etc., and achieve the goal of saving module area, improving module efficiency, and reducing glass length Effect

Active Publication Date: 2018-04-13
LONGI SOLAR TECH (TAIZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Disadvantage 1 of the existing technology: As mentioned in the background technology, the design of double-sided photovoltaic modules requires that the front and back of the battery cannot be directly blocked (or covered), so the junction box on the back should be placed in an area other than the battery. , which increases the area of ​​the glass, thereby reducing the conversion efficiency of the module
Disadvantage 2: In the existing technology, small chips wit...

Method used

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  • Double-sided monocrystalline laminated photovoltaic module and manufacturing method thereof
  • Double-sided monocrystalline laminated photovoltaic module and manufacturing method thereof
  • Double-sided monocrystalline laminated photovoltaic module and manufacturing method thereof

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Embodiment Construction

[0044] Below in conjunction with specific embodiment and accompanying drawing, the present invention will be further described:

[0045] Such as figure 1 As shown, a method for manufacturing a double-sided single crystal laminated photovoltaic module of the present invention comprises the following steps:

[0046] S1, cutting each monocrystalline silicon double-sided laminated cell 1 into N small cells;

[0047] S2, overlapping the cut small pieces of batteries end to end to form a battery string;

[0048] S3, connecting the battery strings through the first welding ribbon to form a long battery string;

[0049] S4, respectively welding the two ends of the connected battery string to the second welding strip;

[0050] S5, component packaging process;

[0051] S6, connect the junction box.

[0052] Such as Figure 2-Figure 9 Specific steps are as follows:

[0053] Such as figure 2 As shown, each monocrystalline silicon double-sided laminated cell 1 is cut into N small ...

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Abstract

The invention discloses a double-sided monocrystalline laminated photovoltaic module and a manufacturing method thereof. The manufacturing method comprises the steps of S1, cutting each monocrystalline silicon double-sided laminated battery piece 1 into N small battery pieces; S2, sequentially overlapping the cut small battery pieces end to end to form battery strings; S3, connecting the battery strings through a first welding strip to form a long battery string; S4, respectively welding second welding strips to two ends of the connected long battery string; S5, performing a module packaging procedure; and S6, connecting a junction box. According to the invention, one battery piece is cut into two types of small battery pieces, and the small battery pieces are connected according to the shape and specifications to form the battery strings, so that two different types of battery strings are packaged in the same module, and the uniformity of the product appearance is realized.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic modules, and in particular relates to a double-sided single crystal laminated photovoltaic module and a manufacturing method thereof. Background technique [0002] The interconnection of cells in traditional crystalline silicon photovoltaic modules is commonly done by arranging the cells sequentially, using tin-coated solder strips containing copper substrates as interconnection strips, and soldering the interconnection strips to the front busbar of the first cell , and the other end of the interconnection bar is welded to the back grid line of the adjacent second cell. The two ends of the second interconnection bar are respectively welded to the front main grid line of the second battery piece and the back grid line of the third battery piece, and so on. In this way, all the battery slices are connected in series. [0003] The laminated module adopts another technology of cell interconnect...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/05
CPCH01L31/0488H01L31/0504Y02E10/50Y02P70/50
Inventor 焦方凯郑直李振国
Owner LONGI SOLAR TECH (TAIZHOU) CO LTD
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