Novel photovoltaic module and manufacturing method thereof

A technology of photovoltaic modules and manufacturing methods, which is applied in the field of photovoltaics, can solve the problems of high price and inability to reduce the gap between cells, and achieve the effects of reducing gaps, increasing power generation, and saving use

Inactive Publication Date: 2014-01-01
YINGLI ENERGY CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of ultra-soft ribbons to connect cells can effectively reduce the distance between cells, b

Method used

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  • Novel photovoltaic module and manufacturing method thereof
  • Novel photovoltaic module and manufacturing method thereof
  • Novel photovoltaic module and manufacturing method thereof

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] This embodiment provides a new type of photovoltaic module, which includes a laminated structure of tempered glass, EVA adhesive film, multi-row solar cell strings, EVA adhesive film and back sheet from top to bottom.

[0029] The material of the back plate is preferably toughened glass, so that the photovoltaic module is light-transmitting and the backside receives light, which is beneficial to improve the power generation efficiency of the photovoltaic module, and the installation of the frame can be omitted.

[0030] Such as Figure 1-3 As shown, the solar cell string is formed by weldin...

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Abstract

The invention provides a novel photovoltaic module and a manufacturing method of the novel photovoltaic module. The novel photovoltaic module comprises a laminated structure formed by tempered glass, EVA adhesive film, a plurality of columns of solar cell strings connected together, EVA adhesive film and a back plate in sequence from top to bottom, wherein a plurality of N-type solar cells and a plurality of P-type solar cells are welded through solder strips to form the solar cell strings, and the N-type solar cells and the P-type solar cells are arranged in an alternate mode. Due to the facts that the N-type solar cells and the P-type solar cells are arranged in the alternate mode, the solar cells can be directly connected through the solder strips in the process of series connection of the solar cells, the generated output in the unit area can be effectively increased, and consumption of the solder strips and frames can be reduced.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a novel photovoltaic module and a manufacturing method thereof. Background technique [0002] Solar cells are mainly divided into P-type cells and N-type cells; among them, P-type cells use P-type silicon materials as substrates to diffuse phosphorus sources to form PN junctions; while N-type cells use N-type materials as substrates to diffuse boron sources to form PN junctions . According to the principle of solar power generation, it can be known that the positive poles of the light-receiving surfaces of the P-type and N-type batteries are just opposite. [0003] In the assembly process, if a battery (N-type or P-type) is used for assembly, in the process of connecting the positive and negative electrodes of the battery, the solder strip needs to be bent in an S-shaped corner before it can be used for welding. In this way, due to the existence of S-bending stress, a cer...

Claims

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Application Information

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IPC IPC(8): H02S40/36H01L31/18
CPCY02E10/50Y02P70/50
Inventor 刘伟张东升吝占胜王静
Owner YINGLI ENERGY CHINA
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