Solar cell assembly

A solar cell module and solar cell technology, applied in the field of solar cells, can solve the problems of large hidden danger of debris and high cost of solar cell modules, and achieve the effects of low debris rate, omitting bending process and reducing cost.

Active Publication Date: 2015-04-08
ENN SOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a solar cell module, which is used to solve the technical problems in the prior art that the busbar is bent and connected in series, resulting in high cost of the solar cell module and a large risk of fragmentation

Method used

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Experimental program
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Embodiment 1

[0055] Such as Figure 5A The illustrated solar cell assembly provided by the embodiment of the present invention includes N rows and M columns of solar cells, and the solar cells in each row are connected in series; among the N rows of solar cells, at least K rows of solar cells have the following structure:

[0056] Two adjacent solar cells in a row of solar cells form a group, and each group of solar cells includes a first solar cell and a second solar cell, wherein at least one group of the first solar cells and the front electrodes of the second solar cells gender opposite (eg Figure 5A The front side of the first solar cell in the group is the positive pole, the front side of the second solar cell is the negative pole, and the front side or the back side of the first solar cell and the second solar cell in the group are provided with a converging strip (such as Figure 5A The front of the first solar cell and the second solar cell in the group is provided with a conflu...

Embodiment 2

[0087] Such as Figure 6 The first solar cell assembly shown includes solar cells in N rows and M columns, and the solar cells in each row are connected in series; the first solar cells adjacent to each other in columns 1 to c in each row of solar cells and the second solar cell constitute c-1 groups of solar cells, the polarities of the front sides of the first solar cell and the second solar cell in each group of solar cells are opposite, and the polarities of the first solar cell and the second solar cell in the group are A confluence strip is arranged on the front or the back, and the confluence strip connects the first solar cell and the second solar cell in the group in series, wherein, 12.

[0088] Wherein, the manner of connecting the first solar cell and the second solar cell in each group in series by the bus strip refers to Embodiment 1, and will not be repeated here.

[0089] The above-mentioned structure of the solar cell module allows the busbar to be arranged o...

Embodiment 3

[0091] Such as Figure 7 The second type of solar cell assembly shown includes solar cells in N rows and M columns, and the solar cells in each row are connected in series; in each row of solar cells, two adjacent first solar cells in the d-th column to the M-th column Constitute M-d group of solar cells with the second solar cell, the polarity of the front of the first solar cell and the second solar cell in each group of solar cells is opposite, and the front of the first solar cell and the second solar cell in this group or A confluence strip is arranged on the back, and the confluence strip connects the first solar cell and the second solar cell in the group in series, wherein, 12.

[0092] Wherein, the manner of connecting the first solar cell and the second solar cell in each group in series by the bus strip refers to Embodiment 1, which will not be repeated here.

[0093] The above-mentioned structure of the solar cell module makes the busbar only need to be arranged o...

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Abstract

The invention discloses a solar cell assembly, which comprises N lines and M rows of solar cells, wherein the solar cells in each line are serially connected, and at least K lines of N lines of solar cells have the following structure that every two adjacent solar cells in one line of solar cells form one group, each group of solar cells comprises a first solar cell and a second solar cell, the polarities of the front sides of the first solar cell and the second solar cell in at least one group are opposite, bus bars are arranged at the front sides or the back sides of the first solar cell and the second solar cell in the corresponding group, the first solar cell and the second solar cell in the corresponding group are serially connected by the bus bars, and the bus bars only need to be arranged at the front sides or the back sides of the adjacent first solar cell and the second solar cell in the corresponding group. The solar cell assembly has the advantages that the bending of the bus bars is avoided, the loss of the bus bars is reduced, and the fragment rate of the solar cell assembly is reduced.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a solar cell assembly. Background technique [0002] A heterojunction solar cell is a heterojunction solar cell that combines amorphous silicon and single crystal silicon. The manufacturing process of heterojunction solar cells is a low-temperature process. The general process temperature is below 300°C, and the thickness ranges from tens of microns to hundreds of microns. It can be made into a single-sided structure or a symmetrical double-sided structure. . [0003] The manufacturing process of traditional heterojunction solar cell modules mainly includes two important steps: welding (single welding, string welding) and packaging. For example, in the N-type heterojunction solar cell module with the positive electrode on the front and the negative electrode on the back, in the current conventional serial welding process, the bus strip is first welded to the main grid elect...

Claims

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Application Information

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IPC IPC(8): H01L31/05
CPCY02E10/50H01L31/0504
Inventor 郑向阳徐湛杨荣李立伟孟原郭铁
Owner ENN SOLAR ENERGY
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