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Solar cell assembly manufacturing process

A technology of solar cells and solar cells, which is applied in the field of solar photovoltaics, can solve problems such as high welding damage rate and unsatisfactory module output power, and achieve the effect of improving welding quality, reducing the possibility of hidden cracks, and achieving obvious effects

Inactive Publication Date: 2007-03-28
TAITONG TAIZHOU IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology has the problems of high welding damage rate and unsatisfactory output power of components

Method used

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  • Solar cell assembly manufacturing process
  • Solar cell assembly manufacturing process

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Experimental program
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Effect test

Embodiment 1

[0057] A process for manufacturing a solar cell module, comprising the steps of:

[0058] 1. Place the prepared product on a workbench with a surface temperature of 60°C,

[0059] After 2.3 minutes, use an electric soldering iron with a soldering iron tip temperature of 360°C to solder the solar cells together with interconnecting strips.

[0060]3. Naturally cool the welded crystalline silicon solar cell array to room temperature, and proceed to the next procedure.

[0061] 4. From bottom to top, glass, ethylene-vinyl acetate material, crystalline silicon solar cell array, ethylene-vinyl acetate material (EVA), and composite fluoroplastic film (TPT) are stacked together and put into Inside the vacuum laminator,

[0062] 5. Use the vacuum lamination method to evacuate the lower chamber of the laminator, pressurize and heat, press the glass / EVA / solar battery string / EVA / TPT together, take it out after forming,

[0063] 6. Add a frame to make a solar cell module.

Embodiment 2

[0065] A process for manufacturing a solar cell module, comprising the steps of:

[0066] 1. Place the prepared product on a workbench with a surface temperature of 60°C,

[0067] After 2.3 minutes, use an electric soldering iron with a soldering iron tip temperature of 360°C to solder the solar cells together with interconnecting strips.

[0068] 3. Put the welded crystalline silicon solar cell array into a 150°C heating table until the crystalline silicon solar cell array cools to the temperature of the workbench, then put it into a 100°C heating table and wait for the crystalline silicon solar cell array to cool to the workbench temperature, and then put it on Put it into a 60°C heating platform to cool, and finally cool to room temperature, and carry out the next process operation.

[0069] 4. From bottom to top, glass, ethylene-vinyl acetate material, crystalline silicon solar cell array, ethylene-vinyl acetate material (EVA), and composite fluoroplastic film (TPT) are s...

Embodiment 3

[0073] A process for manufacturing a solar cell module, comprising the steps of:

[0074] 1. Place the prepared product on a workbench with a surface temperature of 75°C,

[0075] After 2.3 minutes, use an electric soldering iron with a soldering iron tip temperature of 350°C to solder the solar cells together with interconnecting strips.

[0076] 3. After welding, put it into a 190°C heating table to cool to the workbench temperature, then put it into a 140°C heating table to cool to the workbench temperature, then put it into a 90°C heating table to cool, then put it into a 50°C heating table to cool, and finally cool it to normal temperature, proceed to the next process operation,

[0077] 4. From bottom to top, glass, ethylene-vinyl acetate material, crystalline silicon solar cell array, ethylene-vinyl acetate material (EVA), and composite fluoroplastic film (TPT) are stacked together and put into Inside the vacuum laminator,

[0078] 5. Use the vacuum lamination method...

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PUM

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Abstract

The invention includes following steps: (1) after preheating, using prepared interconnection bar to weld solar battery slices to a whole; (2) cooling welded solar battery array of crystalline silicon in low speed; (3) superimposing glass / EVA / solar battery cluster / EVA / TPT from bottom to top, and placing them into vacuum lamination machine; (4) using vacuum lamination method to hot press glass / EVA / solar battery cluster / EVA / TPT together, and taking molded product out; (5) adding frame to produce solar battery array. Preheating operation reduces thermal shock for battery slices, and lowers breakage rate of product. Low cooling speed reduces possibility of creating subfissure on battery slices. Features are: simple technique, obvious effect. Comparing with foretime, the invention reduces 2 percent of breakage rate.

Description

(1) Technical field: [0001] The invention relates to a manufacturing process of a solar battery module. involving solar PV [0002] technology field. (two) background technology: [0003] The single solar cell is made of silicon single crystal or polycrystalline material. Because it is thin and brittle, it cannot withstand a large impact (prone to fragments and cracks), and the electrodes of the solar cell cannot be exposed for a long time. Due to the low working voltage and other reasons, several single solar cells need to be connected in series and parallel and tightly packed into a solar cell module to make it a minimum unit that can be used independently as a power source. [0004] The requirements for solar cell modules can be summarized as follows: certain nominal operating voltage and nominal output power; long working life; sufficient mechanical strength; small loss of electrical properties caused by combination; low combination cost. [0005] The manufacturing pr...

Claims

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Application Information

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IPC IPC(8): H01L31/18
CPCY02P70/50
Inventor 王兴华王维亮
Owner TAITONG TAIZHOU IND
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