Conductive metal foil stamping method and stamping device
A technology of conductive metal and stamping device is applied in the field of solar photovoltaic, which can solve the problems of low processing efficiency and easy torn off strips.
Active Publication Date: 2021-04-09
LONGI SOLAR TECH (TAIZHOU) CO LTD
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Problems solved by technology
[0005] The invention provides a stamping device and a conductive metal foil stamping method, aiming to solve the problems of manual stripping of laser-etched strips, stripping strips are easy to be torn off, and processing efficiency is low
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[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] refer to figure 1 , figure 1 A flow chart of the steps of a conductive metal foil stamping method in an embodiment of the present invention is shown.
[0038] Step 101, setting a supporting base layer on the first side of the conductive metal foil.
[0039] In the embodiment of the present invention, the function of the conductive metal foil is to collect the current and the like of the back-contacted solar cells. The material of the conducti...
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Abstract
The invention provides a conductive metal foil stamping method and a stamping device, and relates to the technical field of solar photovoltaics. The method comprises the steps: arranging a supporting base layer on a first side of a conductive metal foil; laying and fixing the conductive metal foil provided with the supporting base layer on a stamping platform, and enabling the first side provided with the supporting base layer to face the stamping platform; and stamping a second side of the conductive metal foil by using a stamping tool corresponding to an isolation pattern so as to form a stripping strip matched with the isolation pattern on the conductive metal foil, wherein the second side is opposite to the first side, and the depth of the stripping strip is smaller than or equal to the thickness of the conductive metal foil and larger than or equal to 50% of the thickness of the conductive metal foil. The depth of the stripping strip is large, the subsequent stripping strip is less pulled apart, the stripping frequency is less, and the production efficiency is high. As the supporting base layer is arranged, warping caused by the small thickness of the conductive metal foil is avoided, laying, fixing and positioning are facilitated, and stamping displacement errors are reduced.
Description
technical field [0001] The invention relates to the field of solar photovoltaic technology, in particular to a conductive metal foil punching method and a punching device. Background technique [0002] Back-contact solar cell modules widely use conductive metal foils to realize conductive interconnection between back-contact solar cells. The above-mentioned conductive metal foil usually needs to be patterned to form electrically isolated patterns to avoid short circuits. [0003] At present, the peeling strips are mainly etched on the conductive metal foil by laser, and then the laser-etched peeling strips are manually peeled off to form an electrically isolated pattern. [0004] In the above-mentioned method for forming conductive metal foil isolation patterns: during the process of manually peeling off the laser-etched strip, the strip is easily torn off, requiring multiple strips, and the processing efficiency is low. Contents of the invention [0005] The invention p...
Claims
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IPC IPC(8): B26F1/40B26F1/44H01L31/18
CPCB26F1/40B26F1/44H01L31/18Y02P70/50Y02E10/50
Inventor 郭梦龙李华刘继宇
Owner LONGI SOLAR TECH (TAIZHOU) CO LTD