Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Highly attachable high-conductivity photovoltaic welding strip

A photovoltaic ribbon, high conductivity technology, applied in the direction of photovoltaic power generation, circuits, electrical components, etc., can solve the problems of poor electrical conductivity of the ribbon, poor tin electrical conductivity, etc., to achieve the effect of ensuring the conduction of electricity and ensuring the electrical conductivity

Inactive Publication Date: 2012-08-08
久知(苏州)电力科技有限公司
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electrical conductivity of the photovoltaic ribbon is mainly accomplished by the copper base. The closer the copper base is to the conductive wire on the cell, the greater the power derived from the battery and the better the electrical conductivity. The connection strength of the wire should ensure that the thickness of the lower tin layer is between 0.015mm-0.02mm between the copper base strip and the conductive wire. Due to the poor conductivity of tin, the conductivity of the solder strip will deteriorate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Highly attachable high-conductivity photovoltaic welding strip
  • Highly attachable high-conductivity photovoltaic welding strip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] A high-adherence and high-conductivity photovoltaic soldering tape, including a battery sheet 1, a lower tin layer 2, a copper base tape 3 and an upper tin layer 4, and the upper tin layer, copper base tape and lower tin layer are attached to the Located on the upper side of the silver paste layer 5 on the upper side of the battery sheet, it is characterized in that two convex grooves 6 facing the upper tin layer are symmetrically formed on the copper base strip. In this way, the copper base strip can be closer to the battery sheet at the position where there is no convex groove, thereby improving the conductivity of the solder strip. the connection strength between them.

[0014] Preferably, the cross section of the convex groove is rectangular.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a highly attachable high-conductivity photovoltaic welding strip. The welding strip comprises a cell sheet, a lower tin layer, a copper baseband and an upper tin layer. The upper tin layer, the copper baseband and the lower tin layer are successively attached on an upper side surface of a silver paste layer on the upper side surface of the cell sheet from top to bottom. Two protruding grooves, which are towards the upper tin layer, are symmetrically arranged on the copper baseband. The photovoltaic welding strip can not only guarantee joint strength between the copper baseband and the cell sheet but also guarantee conductive performance of the welding strip.

Description

technical field [0001] The invention relates to a high-adherence and high-conductivity photovoltaic welding ribbon. Background technique [0002] Photovoltaic ribbon is one of the main auxiliary materials of photovoltaic modules. It plays the role of connecting silicon wafers and conducting electricity on solar panels. Its inherent conductivity, solderability and elongation play a vital role in the quality of photovoltaic modules. effect. [0003] With the continuous development of photovoltaic technology, the parameters of silicon wafers have been greatly improved compared with before, especially the power per unit area of ​​silicon wafers is getting higher and higher, but the conductivity of photovoltaic ribbons has not changed much, and is becoming more and more The more it becomes one of the bottlenecks to increase the power of silicon wafers. The electrical conductivity of the photovoltaic ribbon is mainly accomplished by the copper base. The closer the copper base is...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/02
CPCY02E10/50
Inventor 刘敏娟
Owner 久知(苏州)电力科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com