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Cell stacking series-parallel connection module lower than 36V and manufacturing method thereof

A production method and parallel connection technology, which is applied to electrical components, circuits, photovoltaic power generation, etc., can solve the problems of high battery installation costs, achieve the effects of small footprint, increased power generation, and high reliability

Pending Publication Date: 2019-02-01
锦州阳光锦懋光伏科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High voltage reduces the number of components in EPC installation of shingled modules, and the cost of battery installation is higher

Method used

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  • Cell stacking series-parallel connection module lower than 36V and manufacturing method thereof
  • Cell stacking series-parallel connection module lower than 36V and manufacturing method thereof
  • Cell stacking series-parallel connection module lower than 36V and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] As shown in the figure, a battery stacking series-parallel assembly below 36V includes glass 1, and four modules one 3, two modules 16, three modules 12, and four modules 8 are arranged in series through EVA on the glass 1 in sequence. , each module is a four-series-parallel structure, each string consists of 17 cells 2 connected in series, and the two adjacent cells are crimped by conductive glue, the length of the crimping part is 1.5mm ~ 2mm, each module Protection diodes D1 to D4 are connected between the positive and negative poles of the module one, the negative pole of module one 3 is connected to the positive pole of module two 16, the negative pole of module two 16 is connected to the positive pole of module three 12, the negative pole of module three 12 is connected to the positive pole of module four 8 connected, the positive pole of module one 3 and the negative pole of module four 8 lead out the main circuit positive pole and the main circuit negative pole r...

Embodiment 2

[0055] As shown in the figure, a battery stacking series-parallel assembly below 36V includes glass 1, and four modules one 3, two modules 16, three modules 12, and four modules 8 are arranged in series through EVA on the glass 1 in sequence. , each module is a four-series-parallel structure, each string is connected by 17 cells 2 in series, and the two adjacent cells are crimped by conductive glue, the length of the crimping part is 1.8mm, the positive electrode of each module Protection diodes D1-D4 are connected between them and the negative pole, the negative pole of module one 3 is connected to the positive pole of module two 16, the negative pole of module two 16 is connected to the positive pole of module three 12, the negative pole of module three 12 is connected to the positive pole of module four 8, The positive pole of module one and the negative pole of module four lead out the positive pole of the main circuit and the negative pole of the main circuit respectively;...

Embodiment 3

[0066] As shown in the figure, a method of manufacturing a series-parallel assembly of batteries below 36V, the steps are as follows:

[0067] 1. First, scribe a single cell in 5 equal parts. During the cutting process, the depth of laser cutting is less than or equal to 50% of the thickness of the cell to prevent the cell from being defective due to the cutting depth;

[0068] 2. Lay glass 1 on the operating table, and lay EVA on the glass according to 430g~500g / square meter; use conductive glue to crimp the positive and negative electrodes of the battery sheet 2, the length of the crimping part is 1.5mm~2mm, and the continuous crimping 17 pieces, after forming four strings in a row, the four strings are connected in parallel to form module one 1, and the module two 16, module three 12 and module four 8 are made at the same time in the same way, the module one 1, the module two 16, the module three 12 and the front of the module four 8 is attached to the glass; the module one...

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Abstract

The present invention provides a cell stacking series-parallel connection module lower than 36V and a manufacturing method thereof. The appearance and the imbrications are consistent, the voltage is lower than 36V, the installation cost of an EPC is consistent to a common module, and the cost of the EPC is not added. A module 1, a module 2, a module 3 and a module 4 which are connected in series are pasted on the glass through the EVA, each module is a four-series-parallel connection structure, each string is formed by 17 battery pieces connected in series, each two adjacent battery pieces arecrimped through conducting resin, and protection diodes D1-D4 are connected between the positive electrode and the negative electrode of each module. The manufacturing method comprises the followingsteps of: performing scribing, and laying glass and EVA; employing the positive and negative electrodes of the conducting resin to crimp the battery piece, continuously forming four strings, and performing parallel-connection of the four strings to form a module 1, a module 2, a module 3 and a module 4; coating tin and copper strips to lead out circuit outgoing line, laying the EVA at the back plate, performing lamination and edge chamfering, installing a junction box, performing connection line, assembling a frame, and performing solidification, IV test and packing and storage.

Description

technical field [0001] The invention relates to a solar cell assembly, in particular to a battery stacking series-parallel assembly with a voltage lower than 36V and a manufacturing method thereof. Background technique [0002] At present, the voltage of the shingled module in the market is higher than 36V, resulting in hot spots. For example, the appearance of the shingled module is obviously different after the voltage is reduced. The high voltage reduces the number of components in the EPC installation of the shingled module, and the battery installation cost is higher. SUMMARY OF THE INVENTION [0003] The present invention aims to solve the above-mentioned shortcomings of the existing shingled components, and provides a battery superimposed series-parallel component below 36V and a manufacturing method thereof. The components are consistent, and the EPC cost does not increase. [0004] The present invention is achieved through the following technical solutions: [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0504H01L31/0508H01L31/188Y02E10/50Y02P70/50
Inventor 谭鑫王立新苏邱齐佳佳张雷
Owner 锦州阳光锦懋光伏科技有限公司
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