Segmented slightly light-concentrating welding belt and preparation thereof

A preparation process and welding ribbon technology, which is applied in the field of segmented micro-concentrating welding ribbon and its preparation, can solve the problems of limited mass production and the inability to reuse light, so as to increase reliability, reduce the risk of hidden cracks and fragments, The unique effect of the structure

Inactive Publication Date: 2017-02-22
TRINA SOLAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 3. The surface of the ribbon is flat, and the light entering the component cannot be reused through total internal reflection
[0006] However, in order to maintain a good surface pattern, the traditional micro-concentrating ribbon needs to rely on conductive adhesive bonding to achieve packaging on the front and back, which limits mass production.

Method used

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  • Segmented slightly light-concentrating welding belt and preparation thereof
  • Segmented slightly light-concentrating welding belt and preparation thereof
  • Segmented slightly light-concentrating welding belt and preparation thereof

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Embodiment Construction

[0035] In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0036] Such as figure 1 , 2 As shown, a segmented micro-concentrating welding ribbon includes a body, and the body has toothed sections 10 and flat sections 20 that are sequentially connected and alternately arranged along its length direction, and the upper section of the toothed section 10 A plurality of protruding teeth 101 are arranged on the surface, and adjacent toothed sections 10 and flat sections 20 are respectively welded on two adjacent battery pieces, and in two adjacent battery pieces, the toothed section 10 is welded To the light-receiving surface of one of the battery sheets, the flat section 20 is welded to the backlight surface of the other battery sheet; wherein, the lengths of the toothed section 10 and the flat section 20 can b...

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PUM

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Abstract

The invention discloses a segmented slightly light-concentrated welding belt and preparation thereof. The segmented slightly light-concentrating welding belt includes a welding belt body. The body is provided with a tooth-profile section and a flat section which are sequentially connected and alternatively disposed along the length of the body. The upper surface of the tooth-profile section is provided with a plurality of convex teeth. The tooth-profile section and its adjacent flat section are respectively welded on two adjacent cells, wherein the tooth-profile section is welded on the illuminated faces of one cell while the flat section is welded on the dark face of the other cell. The invention has the advantages of concentrated light, high output power of modules, good ohmic contact and outstanding welding quality as the flat section is welded on the back of the cell and thereby forming a flat contact patch between the flat section and a back electrode.

Description

technical field [0001] The invention relates to a segmented micro-concentrating welding strip and a preparation process thereof. Background technique [0002] At present, the conventional welding strips in the prior art have a flat rectangular structural cross-section and are prepared by a hot-dip process, and there are several problems: [0003] 1. The yield strength is high, and it is easy to cause the battery to crack during the battery welding process; [0004] 2. The welding strip is shielded to reduce the light-receiving area of ​​the battery, thereby reducing the output power of the module to a certain extent; [0005] 3. The surface of the ribbon is flat, and the light entering the component cannot be reused through total internal reflection. [0006] However, in order to maintain a good surface pattern of the traditional micro-concentrating ribbon, both the front and the back need to rely on conductive adhesive bonding to achieve packaging, which limits mass produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/18
CPCH01L31/0516H01L31/054H01L31/18Y02E10/52Y02P70/50
Inventor 方彩平张舒黄宏伟杨泽民
Owner TRINA SOLAR CO LTD
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