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Serial connection process of solar cell panels

A solar cell and cell technology, which is applied in the field of series connection process, can solve the problems affecting the efficiency of modules, the cells cannot be closely arranged, and the area of ​​the modules is wasted, so as to achieve the advantages of improving production efficiency, convenient and quick installation, and reducing production costs. Effect

Inactive Publication Date: 2019-04-19
CHANGZHOU SHICHUANG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As mentioned above, two adjacent tiled cells in the battery string need to be connected in series through conductive connectors. In order to prevent the conductive connectors from short-circuiting the front and back of the same cell, a certain distance should be set between two adjacent tiled cells. In order to avoid the simultaneous contact between the conductive connector and the front and back of the same cell, which makes the cell tiles not densely packed, wastes the module area, and affects the efficiency of the module

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The invention provides a process for connecting solar cells in series, comprising the following steps:

[0037] 1) Adhesion:

[0038] Two tiled cells are connected in series through a connector, the polarity of the front of the two tiled cells is the same, and the polarity of the front and back of the same cell is opposite; the connector includes a conductive core material and an insulating outer layer; The insulating outer layer is an insulating glue containing conductive particles inside, and the insulating outer layer can conduct electricity after being heat-pressed, and the heat-pressing conditions that can make the insulating outer layer conductive are the conductive hot-pressing conditions of the insulating outer layer;

[0039] The connecting piece is adhered to the front side (front electrode) of one of the battery slices, and the part of the connecting piece adhered to the front side of the battery piece is the first end of the connecting piece;

[0040] The c...

Embodiment 2

[0056] The present invention provides a process for connecting solar cells in series. On the basis of Embodiment 1, the difference is that:

[0057] The conductive hot pressing conditions include: conductive hot pressing temperature conditions, conductive hot pressing pressure conditions and conductive hot pressing time conditions; Less than 0.02MPa, the condition of the conductive hot pressing time is that the hot pressing time is not less than 5s.

[0058] The temperature of the vertical hot pressing is 120-150° C., the pressure of the vertical hot pressing is 0.02-0.03 MPa, and the time of the vertical hot pressing is 600-1200 s.

Embodiment 3

[0060] The present invention provides a process for connecting solar cells in series. On the basis of Embodiment 2, the difference is that:

[0061] The vertical hot pressing is carried out in the module lamination step in the solar cell module preparation process, and the combination and electrical connection of the connector and the corresponding battery sheet are completed through the hot pressing process in the module lamination step.

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PUM

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Abstract

The invention discloses a serial connection process of solar cell panels. The serial connection process comprises the steps that: two adjacent tiled cell panels are serially connected by means of a connector, a first end part and a second end part of the connector can be directly adhered to the corresponding cell panels, and the first end part and the second end part are subjected to vertical hot-pressing so as to be combined with the corresponding cell panels for parallel electrical connection; and an insulating outer layer of the middle portion of the connector can maintain insulation, so asto avoid the middle portion from short-circuiting the front and back surfaces of the same cell panel, the two adjacent tiled cell panels can be arranged closely, that is the two adjacent tiled cell panels can abut against the middle portion of the connector respectively, such that the distance between the two adjacent tiled cell panels is minimized.

Description

technical field [0001] The invention relates to a series connection process of solar cells. Background technique [0002] Solar cell modules (also called solar panels, photovoltaic modules) are the core part of the solar power generation system. A solar cell module refers to the smallest indivisible solar cell combination device with external packaging and internal connections that can provide direct current output alone. It is mainly composed of solar cells, tempered glass, EVA, backplane and frame. [0003] The manufacturing method of the solar battery module mainly includes the following steps: connecting battery slices in series, stacking modules, laminating modules, and framing. [0004] Among them, the series connection of battery slices is mainly: a plurality of battery slices are tiled and serially connected in series along a certain arrangement direction, and the multiple battery slices are connected in series to form a battery string; The front side (front electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/05
CPCH01L31/0504H01L31/188Y02E10/50Y02P70/50
Inventor 常振宇符黎明曹育红
Owner CHANGZHOU SHICHUANG ENERGY CO LTD