Solder strip used for photovoltaic module, and photovoltaic module

A technology of photovoltaic modules and welding strips, applied in photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of unreliable welding and low light utilization rate, and achieve the advantages of improving utilization rate, increasing welding area, and improving light utilization rate. Effect

Inactive Publication Date: 2019-02-15
YINGLI ENERGY CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a soldering ribbon for photovoltaic modules to solve the technical problems of low light utilization rate and unreliable welding in the prior art

Method used

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  • Solder strip used for photovoltaic module, and photovoltaic module
  • Solder strip used for photovoltaic module, and photovoltaic module
  • Solder strip used for photovoltaic module, and photovoltaic module

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Embodiment Construction

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.

[0029] Please also refer to Figure 1 to Figure 4 , the ribbon for photovoltaic modules provided by the present invention will now be described. The photovoltaic module welding ribbon includes a front busbar ribbon 1 and a back busbar ribbon 3. The cross section of the front busbar ribbon 1 is a triangular structure, which is used for welding the front busbar of the photovoltaic cell 2, and one of the triangles is The plane where the edge is located is welded to the front main grid; the cross section of the rear main grid ribbon 3 is a trapezoidal structure, which...

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Abstract

The invention provides a solder strip used for a photovoltaic module, and a photovoltaic module, and belongs to the technical field of solar cell manufacture. The solder strip comprises a front side main grid solder strip and a back side main grid solder strip, wherein the cross section of the front side main grid solder strip is of a triangular structure and is used for the front side welding front side main grid of a photovoltaic cell, and a plane where one edge of the triangle is positioned is welded with the front side main grid; and the cross section of the back side main grid solder strip is of a trapezoidal structure and is used for the back side welding back side main grid of the adjacent photovoltaic cell, and a plane where one bottom edge of the trapezoid is positioned is weldedwith the back side main grid. By use of the solder strip used for the photovoltaic module, the triangular solder strip welded to the front side of a cell effectively improves the use ratio of incidentlight, the trapezoidal solder strip is welded to the back side main grid of the cell so as to increase the welding area with the back side main grid of the cell, and welding reliability and the reliability of the photovoltaic module in a use process are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic cells, and more specifically relates to a soldering ribbon for a photovoltaic module and a photovoltaic module. Background technique [0002] At present, the welding ribbons used in multi-busbar components are round ribbons. For the circular ribbon structure, if the circular ribbon is designed as a triangular ribbon, the top corner of the triangular ribbon is designed so that the ribbon The light on the surface returns to the surface of the adjacent battery to the maximum extent, and is reused by the battery, effectively improving the utilization rate of light inside the module. [0003] The solder ribbon currently applied to the multi-busbar assembly is a circular solder ribbon, and the shape of the circular solder ribbon after tinning is as follows: Figure 4 Shown: On the upper surface of the ribbon, from point a to point b, after the light is incident, part of the reflected light is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/054
CPCH01L31/0508H01L31/0547Y02E10/52
Inventor 杨燕倪健雄麻超王帆耿亚飞王会晓
Owner YINGLI ENERGY CHINA
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