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Solar cell screen printing plate having paste amount limiting function

A technology of solar cells and current limiting, which is applied in the direction of circuits, electrical components, screen printing machines, etc., can solve the problem of difficulty in controlling the amount of slurry added, and achieve the effects of saving usage, saving slurry, and preventing scratches

Inactive Publication Date: 2015-02-18
浙江东达光伏有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the amount of slurry added in the screen is difficult to control, the present invention provides a solar cell screen with slurry current limiting

Method used

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  • Solar cell screen printing plate having paste amount limiting function
  • Solar cell screen printing plate having paste amount limiting function
  • Solar cell screen printing plate having paste amount limiting function

Examples

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 In the shown embodiment, a solar battery sheet screen plate with slurry current limitation includes an outer frame 1 and a screen arranged on the outer frame. The screen is provided with a printing surface in contact with the substrate and a squeegee surface in contact with the squeegee. The printing surface and the squeegee surface are connected by screen holes. The area where the screen holes gather forms a pattern area 2, and the periphery of the pattern area forms a non-pattern area. 3. The four sides of the pattern area 2 on the scraping surface are provided with a current limiting frame 4, and the current limiting frame 4 is an aluminum alloy frame. The current-limiting frame 4 is square, and the thickness of the aluminum alloy used is 3 mm. The dimensions of the current-limiting frame are: length 250 mm, width 2...

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Abstract

The invention discloses a solar cell screen printing plate having a paste amount limiting function. The solar cell screen printing plate comprises an outer framework and a silk screen arranged on the outer framework, wherein the silk screen is provided with a printing surface which is in contact with a printing stock and an ink scraping surface which is in contact with a scraper; the printing surface is communicated with the ink scraping surface through silk screen holes; a pattern area is formed at the aggregating position of the silk screen holes; a non-pattern area is formed on the periphery of the pattern area; a current-limiting framework is arranged on the periphery of the pattern area of the ink-scraping surface; a sealing ring is arranged between the current-limiting framework and the silk screen ink-scraping surface; the current-limiting framework is detachably connected with the outer framework. According to the solar cell screen printing plate, the current-limiting framework is additionally arranged outside the pattern area of the screen printing plate, so that the problem of difficulty in controlling the adding amount of paste in the screen printing plate is solved, the screen printing plate is protected, and the pulp is saved.

Description

technical field [0001] The invention relates to a device for screen printing of solar cells, in particular to a solar cell screen with slurry current limiting. Background technique [0002] In the screen printing process of solar cells, the plastic scraper is mainly used to print on the stainless steel screen, so that the screen is deformed and the ink penetrates, so as to achieve the purpose of printing the paste on the surface of the cell. [0003] In the printing process, if there is too little printing paste in the screen, the paste will not be printed on part of the cell after printing, that is, the cell is missing. The missing cell is classified as abnormal due to printing appearance problems. Or degraded film, so from the perspective of reducing the degraded film, you should try to add enough paste to the screen for printing. The screen used in this printing process is generally stainless steel wire mesh. The diameter of the steel wire used in this type of stainless ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F15/36H01L31/18
CPCY02P70/50
Inventor 张克强
Owner 浙江东达光伏有限公司
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