Heterojunction silicon wafer transmission positioning device and method

Abstract

The invention discloses a heterojunction silicon wafer transmission positioning device and method. The invention belongs to the technical field of silicon wafer transmission and positioning of solar photovoltaic cells. A machine frame is included, a driving wheel set and a driven wheel set are arranged at two ends of the machine frame correspondingly. A synchronous belt is in transmission connection between the driving wheel set and the driven wheel set; a first positioning plate, a second positioning plate, a third positioning plate and a fourth positioning plate are sequentially arranged onthe synchronous belt; a secondary positioning module is arranged between the third positioning plate and the fourth positioning plate, and the driving wheel set is in transmission connection with a driving assembly; the secondary positioning module comprises a bottom plate, an edge positioning block, a middle positioning block and a transition positioning block, and the edge positioning block, themiddle positioning block and the transition positioning block are arranged on the bottom plate; and a lower end of the bottom plate is in transmission connection with a lifting cylinder. Through a secondary positioning mode, positioning precision is improved, through the structure of the secondary positioning module, a height of the positioning block is increased, equivalently, the positioning block is made into a shape similar to a funnel, deviation fault tolerance of the silicon wafer in a conveying process is increased, and a battery piece can be ensured to be effectively placed in the positioning block.

Description

technical field [0001] The invention belongs to the technical field of silicon wafer transmission and positioning of solar photovoltaic cells, and in particular relates to a heterojunction silicon wafer transmission and positioning device and method. Background technique [0002] With the development of the country, environmental protection issues have emerged spontaneously. The government has paid more and more attention to the field of new energy c. The continuous advancement of Industry 4.0 and the development and improvement of mechanical intelligence will lead industrial production to a new era of revolution. Through intelligent manufacturing and intelligent control systems, industrial production can be truly achieved, labor intensity can be reduced, labor efficiency can be improved, and the level of industrial production has reached a new level. In the production process of the PECVD process of amorphous silicon, solar SHJ photovoltaic cells are basically operated in t...

AI Technical Summary

Problems solved by technology

[0003] The defect of the existing technology is that the transmission accuracy of the silicon wafer on the transmission track is not enough. When the silicon wafer is transferred to the positioning block, the position of the silicon wafer is deviated. When the positioning block is positioned, the silicon wafer rides on the edge of the positioning block. Into the groove of the carrier plate, causing the silicon wafer to ride on the edge of the groove of the carrier plate. When the carrier plate enters the PECVD equipment for plasma vapor chemical deposition, it will lead to winding plating, resulting in defective cells. The walking arm is used The form will also cause the imprint of the walking arm on the silicon wafer and cannot be 100% avoided, and the form of the walking arm should not be too fast and the efficiency is usually low. The existing transmission positioning mechanism is basically difficult to meet the needs of silicon wafer transportation.

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