Series connection method of solar cell strings

A technology of solar cells and series connection method, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., can solve the problems of waste of battery chip area, and achieve the effect of avoiding waste

Inactive Publication Date: 2020-03-27
CHANGZHOU SHICHUANG ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the shingling method, one of the two adjacent cells will block the other cell, which will cause a waste of cell area

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The invention provides a method for connecting solar battery strings in series, which includes: connecting two adjacent battery pieces in series through a conductive connecting piece, and extending the conductive connecting piece from the front of one of the battery pieces to the other battery back of sheet; also includes:

[0028] A through hole for the conductive connector to pass through is provided on the battery sheet whose front is connected to the conductive connector, so that the through hole penetrates the front and back of the battery sheet where it is located, and the through hole is close to the end walls of the opposite ends of the two battery sheets, so that the through hole is located at the opposite end of the battery sheet. The periphery of the back electric field of the cell where it is located, and the area on the back of the cell at the periphery of the back electric field is covered with an insulating layer, the through hole is located at the periphe...

Embodiment 2

[0032] On the basis of embodiment 1, the difference is:

[0033] The end walls of the opposite ends of the above two battery slices extend in a straight line, and strip-shaped conductive connectors are used.

Embodiment 3

[0035] On the basis of embodiment 2, the difference is:

[0036] The connection between the conductive connector and the front of the cell is connected by spot welding;

[0037] The connection between the conductive connector and the back of the cell is by spot welding.

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PUM

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Abstract

The invention discloses a series connection method of solar cell strings, being characterized in that through holes for conductive connecting pieces to penetrate through are formed in cell pieces, soas to enable the conductive connecting pieces to penetrate through the through holes to cross between the front surfaces and the back surfaces of the cell pieces, so that the conductive connecting pieces do not need to be clamped between two adjacent laid cell pieces, and the two adjacent laid cell pieces can be spliced together, and the laying density of the cell pieces is maximized in the horizontal direction. For the series connection method of solar cell strings, two adjacent laid cell pieces are spliced together, so that the two adjacent cell pieces are not shielded with each other, and then the problem that one cell piece in the two adjacent cell pieces shields the other cell piece due to the adoption of an imbricate technology can be avoided, and the area waste of the cell pieces isavoided.

Description

technical field [0001] The invention relates to a serial connection method of solar battery strings. Background technique [0002] Solar cell modules (also called solar panels, photovoltaic modules) are the core part of the solar power generation system. The solar battery module includes a battery string, and the battery string is composed of a plurality of solar battery slices laid in series in sequence. [0003] There are two main connection methods of existing battery strings: tiling and shingling. [0004] In the tiling method, there is a certain distance between two adjacent cells in the horizontal direction (with a conductive connector in between), so the density of cell laying is not maximized. [0005] In the shingling method, one of the two adjacent cells will block the other cell, which will cause a waste of cell area. Contents of the invention [0006] In order to solve the defects in the prior art, the present invention provides a method for connecting solar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/18H01L31/05
CPCH01L31/0508H01L31/188Y02E10/50Y02P70/50
Inventor 张贺梅梅晓东
Owner CHANGZHOU SHICHUANG ENERGY CO LTD
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