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Solar battery component and precise superposing method

A technology of solar cell components and solar cells, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problems of blade consumption, accidental injury of operators, high production cost, etc., and achieve the goal of saving production cost, avoiding accidental injury of personnel, and saving labor costs Effect

Active Publication Date: 2010-02-24
WUXI SUNTECH POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Choosing EVA and TPT slightly larger than the glass size can play a good sealing role, but it wastes a lot of expensive EVA and TPT, and the production cost is high
[0005] 2. EVA will overflow during the lamination process, polluting the laminator, the conveyor belt and the solar cell module itself, which is difficult to remove
[0006] 3. The glass and anti-reflection film may be scratched during the edge cutting process, and the solar cell strings inside may be cracked during the handling and flipping of the solar cell module, thereby affecting the quality of the solar cell module
[0007] 4. A large amount of manpower is required for edge cutting, which will cause accidental injury to operators, and consume consumables such as blades and alcohol; in addition, a large amount of waste that is difficult to handle will also be generated

Method used

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  • Solar battery component and precise superposing method
  • Solar battery component and precise superposing method
  • Solar battery component and precise superposing method

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 The top view of the stacked solar cell modules in this embodiment and the partial enlarged view of the upper edge (area U1) and figure 2 Shown is the front view of the stacked solar cell modules in this embodiment, wherein the size of the first layer of EVA 2 and the second layer of EVA 4 is 1570mm*798mm, and the size of TPT 5 is 1572mm*800mm.

[0023] The first layer of EVA 2 is pasted on the glass 1, its upper side is about 2 mm away from the upper side of the glass 1, and its left side is about 2 mm away from the left side of the glass 1. The solar battery string 3 is placed on the first layer of EVA 2, in the center of the glass 1, its upper side is about 20 mm away from the upper side of the glass 1, and its left side is about 16 mm away from the left side of the glass 1. The second layer of EVA4 is pasted on the solar cell string 3 , the distance between its lower side and the lower side of the glass 1 is about 2 mm, and the distance between its...

Embodiment 2

[0032] Such as image 3 The top view of the stacked solar cell module in this embodiment and the partial enlarged view of the upper edge (region U2) are shown, wherein the size of the first layer of EVA 2 and the second layer of EVA 4 is 1570mm*796mm, and the size of TPT 5 is 1572mm *800mm.

[0033] The first layer of EVA 2 is pasted on the glass 1, its upper side is about 2 mm away from the upper side of the glass 1, and its left side is about 2 mm away from the left side of the glass 1. The solar battery string 3 is placed on the first layer of EVA 2, its upper side is about 20 mm away from the upper side of the glass 1, and its left side is about 16 mm away from the left side of the glass 1. The second layer of EVA 4 is pasted on the solar battery string 3 , the distance between its lower side and the lower side of the glass 1 is about 2 mm, and the distance between its right side and the right side of the glass 1 is about 2 mm. The TPT 5 is pasted on the second layer of ...

Embodiment 3

[0039] In this embodiment, the size of the first layer of EVA 2 and the second layer of EVA 4 is 1568mm*796mm, and the size of the TPT 5 is 1573mm*801mm.

[0040]The first layer of EVA 2 is pasted on the glass 1, its upper side is about 1 mm away from the upper side of the glass 1, and its left side is about 1 mm away from the left side of the glass 1. The solar battery string 3 is placed on the first layer of EVA 2, its upper side is about 20 mm away from the upper side of the glass 1, and its left side is about 16 mm away from the left side of the glass 1. The second layer of EVA 4 is pasted on the solar cell string 3 , the distance between its lower side and the lower side of the glass 1 is about 1 mm, and the distance between its right side and the right side of the glass 1 is about 1 mm. The TPT 5 is pasted on the second layer of EVA 4 with a distance of 0.5 mm between each side and the corresponding side of the glass 1 . Between the first layer of EVA 2 and the second l...

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Abstract

The invention discloses a solar battery component and a precise superposing method. The method comprises the step of superposing glass, a first layer of glue film, a solar battery string, a second layer of glue film and a back plate layer, wherein the distance between each side edge of the first layer of glue film and the second layer of glue film and the corresponding side edge of the glass cannot enable glue to overflow in lamination, and each side edge of the back plate is shorted than the corresponding side edge of the glass and completely covers the first layer of glue film and the secondlayer of glue film. The solar battery component and the precise superposing method prevent the glue from overflowing, thereby avoiding edge cutting treating procedure, washing procedure and the like,ensuring the product quality, reducing the process difficulty, saving the labor cost and improving the production efficiency. Meanwhile, the invention saves the use quantity of the first layer of glue film, the second layer of glue film and the back plate and reduces material consumption, thereby largely saving the production cost.

Description

technical field [0001] The invention relates to the field of solar cell manufacturing, in particular to a solar cell module and its precise lamination method. Background technique [0002] In the solar cell module encapsulation process, glass, lower layer EVA (ethylene-vinyl acetate copolymer), solar cell strings, upper layer EVA and TPT (polyvinyl fluoride composite film) need to be laminated together in sequence, and then laminated, EVA After melting, paste the glass, solar cell strings and TPT together, and the solar cell assembly is in a completely sealed state after cooling, thus ensuring the service life of the solar cell assembly. [0003] In the prior art, EVA and TPT, which are slightly larger than the size of the glass, are usually selected. After being laminated, they are sent to a laminator for lamination. The EVA and TPT on the edge of the component are cleaned with a cloth and alcohol, and then framed. This technique of lamination after lamination has the fol...

Claims

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Application Information

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IPC IPC(8): H01L31/18H01L31/048
CPCY02E10/50Y02P70/50
Inventor 温建军孙益进高瑞
Owner WUXI SUNTECH POWER CO LTD
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