Novel apparatus used for film engraving and dotting of thin-film solar cell

A technology of solar cells and thin films, applied in circuits, electrical components, laser welding equipment, etc., can solve the problems of inconsistent marking quality, repeated lines, repeated points, etc., to avoid marking errors, automatic and accurate alignment, and realize alignment bit effect
CN101431126BInactive Publication Date: 2010-08-11WUHAN LINGYUN PHOTOELECTRONICS SYST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN LINGYUN PHOTOELECTRONICS SYST
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a new device used for scribing and pointing of a thin film solar cell. The device comprises a laser, a support pedestal, an automatic focusing control subsystem, an automatic photographing positioning subsystem, an optical platform, an industrial control computer, a power supply and a dynamic galvanometric scanning subsystem. The device is characterized in that a feeding mechanism is arranged on the optical platform, wherein, the support pedestal, the automatic focusing control subsystem and the automatic photographing positioning subsystem are arranged on one side surface of the optical platform. An X-Y-axis galvanometric scanning unit, a Z-axis front focusing unit and the laser are arranged in a beam of the support pedestal. The industrial control computer is respectively connected with the laser, the X-Y-axis galvanometric scanning unit, the Z-axis front focusing unit and the power supply by cables. The invention has the advantages of simple structure, standard process, low production cost, easy mass production, wide scanning range, small focusing spot, good consistency, automatic and accurate positioning, high working efficiency, and the like, thereby being capable of being widely applied in scribing, pointing and other production fields of amorphous silicon solar cells.
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Description

Technical field

[0001] The invention relates to a laser marking equipment, in particular to a device for marking and marking thin-film solar cells. Background technique

[0002] At present, laser processing technology has been widely used in the production of amorphous silicon thin-film solar cells to realize the scribing and dotting of solar cells. The Chinese patent number ZL200710072812 solar cell laser marking equipment uses an XY galvanometer and a dedicated large-format X---Y worktable to realize the marking of the cells. Although this method has a certain improvement in marking speed compared with the original, and can mark large-format and special-patterned solar thin-film batteries, it still requires the substrate of the solar thin-film battery to move on a mobile workbench, and the speed is bound to be affected by the large-format The movement speed of the worktable is limited, and due to the vibration of the worktable during the movement process, uneven and unstable p...

Claims

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