Photovoltaic cell packaging pressure head and packaging machine

Abstract

The invention provides a photovoltaic cell packaging pressure head, which comprises a pressing module and a heating module, wherein the pressing module comprises a substrate, a plurality of pressure head bodies and a first pressure regulating component; the plurality of pressure head bodies are arranged below the substrate and are arranged in a polygon form; the heating module comprises a plurality of heating blocks and heating tubes; the plurality of heating blocks are arranged around the pressure head bodies; and the heating tubes are arranged in the heating blocks. The invention further provides a packaging machine. The packaging machine comprises a rack, the packaging pressure head and a clamp, wherein a drive module is fixedly arranged at the upper end of the rack; a work bench is arranged at the lower end of the rack; and the clamp is fixedly arranged on the work bench. According to the packaging pressure head provided by the invention, the number of the pressure head bodies is set according to the number of the sides of a battery; one workpiece can be packaged only by once hot-pressing action; the packaging efficiency is high; the pressure head bodies are mutually independent, so that individual setting of pressure and temperature can be realized; the packaging effect is good; and the product yield is high. The effects of high packaging efficiency and high yield can also be reached by the packaging machine employing the packaging pressure head.

Description

technical field [0001] The invention relates to a device for combining workpieces with heat or pressure, in particular to a photovoltaic cell packaging pressure head and packaging machine. Background technique [0002] As a clean and environmentally friendly green energy product, solar photovoltaic cells (photovoltaic cells for short) are increasingly used in various fields of production and life, such as grid-connected power generation, off-grid power supply, and building integration. In order to protect the cells against mechanical stress, exposure to sunlight and moisture, the cells connected in series need to be embedded in a transparent encapsulation material which at the same time provides electrical insulation to the cells. Therefore, hermetic packaging of photovoltaic cells is critical to the lifetime and electrical performance of the cells. [0003] The process of encapsulation film encapsulation and lamination is to heat the indenter of the encapsulation machine f...

AI Technical Summary

Problems solved by technology

In the prior art, the encapsulation machine is only equipped with one thermal pressure head, and the temperature of the pressure head is controlled by the pulse of the transformer, and the products are crimped on one side respectively, and the products need to be crimped in four times. After the products are crimped, the following problems occur: first, The packaging efficiency is low; second, after crimping, the height difference of the four sides of the crimping product is large, and the edge is not packaged well, resulting in a high defect rate of the product

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