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Packaging method of double-glazed solar cell modules

A technology of solar cells and encapsulation methods, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of high energy consumption and disadvantages, and achieve the effects of low energy consumption, reduced probability of fragments and hidden cracks, and reduced breakage rate

Active Publication Date: 2015-07-15
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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  • Packaging method of double-glazed solar cell modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Such as figure 1 The dual-glass solar cell module shown includes a first tempered glass layer 11, a first PVB layer 21, a battery pack layer 4, a bus bar, a second PVB layer 22, and a second tempered glass layer stacked in sequence from top to bottom. 12. The multiple cells of the battery pack layer 4 are connected in series by tin-coated copper tapes 3 in sequence. The bus bars are arranged in sections along the edge of the module, and the second tempered glass layer 12 corresponds to the opening of the bus bar section. A round hole is provided, and the lead wire of the bus bar is drawn from the round hole and connected with the terminal of the split junction box 6.

[0024] The specific production method is as follows: first use an automatic welding machine to weld the battery slices with tin-coated copper tape 3 in series to form the battery pack layer 4; use an automatic laying machine to arrange the battery pack layer 4 on the first tempered glass layer 11 ...

Embodiment 2

[0036] Example 2: The same as Example 1, except 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 autoclave temperature is 115°C. , The time is 4 hours, and the pressure is 1.5Mpa.

Embodiment 3

[0037] Example 3: The same as Example 1, except that the pre-heating temperature is 50° C., the pre-heating time is 20 minutes, the vacuum pressure is 0.22 Mpa, and the vacuum 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 cell module. Background technique [0002] After entering the 21st century, facing the environmental pollution caused by petrochemical energy to mankind and the impact of gradual depletion on human life, mankind now needs a green and sustainable energy source. As a green and environmentally friendly energy source, solar photovoltaic power generation is increasingly accepted and recognized by everyone. 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 the industry. [0003] Double-glass solar modules are composed of cells, glass, PVB, tin-coated copper tape, junction boxes, etc., which are different from conventional photovoltaic modules in the packaging structure. And it has the advantages of high mechanical strength, superior weather resistance...

Claims

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Application Information

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Patent Type & Authority Applications(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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