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A method for encapsulating a double-glass solar cell module

A technology of solar cells and encapsulation methods, applied to electrical components, circuits, photovoltaic power generation, etc., can solve the problems of high energy consumption and disadvantages, achieve low energy consumption, reduce the probability of fragments and hidden cracks, and avoid damage.

Active Publication Date: 2017-09-29
CECEP SOLAR ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process method is currently the mainstream process in this field. Although the production efficiency has been improved to a certain extent, the product qualification rate has become a bottleneck that is difficult to break through, and the production process consumes a lot of energy, which is not conducive to industrial production.

Method used

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  • A method for encapsulating a double-glass solar cell module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: as figure 1 The double-glass solar cell module shown includes, from top to bottom, the first tempered glass layer 11, the first PVB layer 21, the battery pack layer 4, the bus bar, the second PVB layer 22 and the second tempered glass layer 12. Multiple cells of the battery pack layer 4 are formed by connecting tin-coated copper strips 3 in series end to end. The bus bars are arranged in segments along the cell edges of the module. The second tempered glass layer 12 corresponds to the opening of the bus bar segment. A round hole is provided, and the lead wire of the bus bar is drawn out from the round hole and connected with the terminal post of the split junction box 6 .

[0024] The specific production method is as follows: first, use an automatic welding machine to weld the battery sheets in series with tin-coated copper strips 3 to form a battery pack layer 4; use an automatic laying machine to arrange the battery pack layer 4 on the laid first tempere...

Embodiment 2

[0036] Embodiment 2: roughly the same as Example 1, the difference is that the preheating temperature is 70°C, the preheating time is 40 minutes, the vacuum pressure is 0.18Mpa, the vacuum time is 40 minutes, and the temperature of the autoclave is 115°C , time is 4 hours, pressure is 1.5Mpa.

Embodiment 3

[0037] Embodiment 3: roughly the same as Embodiment 1, the difference is that the preheating temperature is 50°C, the preheating time is 20 minutes, the vacuuming pressure is 0.22Mpa, and the vacuuming time is 20 minutes.

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Abstract

The invention discloses a packaging method of double-glazed solar cell modules. A sealing ring is mounted on the edge of to-be-packaged double-glazed solar cell modules to seal the insides of the double-glazed solar cell modules; the to-be-packaged double-glazed solar cell modules are conveyed to a preheating zone of a flat press to be preheated; the inside of each to-be-packaged double-glazed solar cell module is subjected to vacuum pumping by a vacuum pressure device, prepressing is performed with negative pressure, and the heating state is kept; after prepressing, the sealing ring is dismounted; the prepressed double-glazed solar cell modules are input into an autoclave to be pressed. The negative pressure produced by vacuum pumping of each solar cell module by a vacuum pumping system of the flat press is used for prepressing, bubbles in the modules are removed, damage caused by pressing with external mechanical force to the cells in conventional methods is avoided, the breakage rate of the cells is decreased, and the product percent of pass is increased.

Description

technical field [0001] The invention relates to the field of photovoltaics, in particular to a double-glass solar battery module. Background technique [0002] After entering the 21st century, facing the environmental pollution brought by fossil energy to human beings and the impact of gradual depletion on human life, human beings are currently in need of a green and sustainable energy source. Solar photovoltaic power generation, as a green and environmentally friendly energy method, is increasingly accepted and recognized by everyone, and how to improve the power generation efficiency of photovoltaic systems and reduce the power generation cost of photovoltaic power generation is becoming an important aspect of concern for industry insiders. [0003] Double-glass solar modules are composed of cells, glass, PVB, tin-coated copper strips, junction boxes, etc., and are different from conventional photovoltaic modules in their packaging structure. And it has the advantages tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/048
CPCH01L31/0488H01L31/18Y02E10/50Y02P70/50
Inventor 勾宪芳范维涛贾俊攀王鹏宋爱珍
Owner CECEP SOLAR ENERGY TECH
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