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Production process of solar cell back film

A technology of solar cells and production processes, applied in the direction of circuits, electrical components, and final product manufacturing, to achieve the effects of reasonable design, low friction coefficient, and low investment costs

Active Publication Date: 2015-10-14
山东城际轨道交通科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a production process of solar cell back film to solve the defects in the production process of solar cell back film in the prior art

Method used

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  • Production process of solar cell back film
  • Production process of solar cell back film
  • Production process of solar cell back film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] For the research and development of the solar cell industry, corresponding special equipment is produced according to the process flow for double-sided coating of the protective film of the solar cell silicon wafer backplane.

[0027] The workflow is as follows:

[0028] Unwinding device (located at the right end of the machine, double-station rotation, electric feeder) → receiving and storing device (located on the left side of unwinding, pneumatic storage mechanism, ultrasonic receiving device) → unwinding traction and front coating device (Located on the left side of the material receiving and storage device, the pressure roller has anti-static function) → Primary leveling device (located on the left side of the front coating, using a guide roller and glass conveying method, using infrared light waves to heat to improve coating leveling Efficiency, increase coating adhesion fastness) → Primary heating drying device (located on the left side of the primary leveling section...

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Abstract

The invention provides a manufacturing technique of a solar cell back film. The manufacturing technique of the solar cell back film comprises the following steps: after a material roll is unreeled, material receiving and storing are carried out to a material film, and then unreeling traction and front coating are carried out to the material film out of the material receiving and storing; primary leveling, primary heating and drying and first air cooling are sequentially carried out to the material film after the front coating, and then primary discharging traction and cooling are further carried out; secondary leveling, secondary heating and drying are sequentially carried out to the material film after back side coating is carried out to the cooled material, and then secondary discharging traction is carried out; and triple heating and drying, triple discharging traction, quartic heating and drying, low temperature drying, secondary air cooling, quartic discharging traction and cooling are sequentially carried out to the material film after the secondary discharging traction, and finally rolling up is carried out. Compared with the prior art, the manufacturing technique of the solar cell back film soles problems generated in a solar cell back film producing process, and improves quality of products.

Description

Technical field [0001] The invention relates to the technical field of processing technology, in particular to a production technology of a solar cell back film. Background technique [0002] In the existing solar cell back film production process, many problems have occurred, such as the inability to automatically pick up the material, the poor coating uniformity, and it is easy to draw vertical stripes on the surface coating of the rubber roller, which affects The flatness of the product surface will bring many difficulties to the subsequent leveling process and seriously affect the product quality. The coating is easy to strike fine lines through electric discharge, and it is impossible to make a product; once the dry material is formed during the production of the coating measurement, it needs to be shut down for cleaning, which is time-consuming and material-consuming, and brings many troubles to the operation in the production process. After the coating of the original coa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 王利民
Owner 山东城际轨道交通科技股份有限公司
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