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Production method of photovoltaic roof tiles

A production method and technology of roof tiles, applied in the direction of chemical instruments and methods, layered products, final product manufacturing, etc., can solve the problems of tile-type back materials such as easy cracking, non-corrosion resistance, and low yield, so as to ensure durability UV and aging properties, improved alignment accuracy, and reduced cracking effects

Active Publication Date: 2012-06-06
浙江贝盛绿能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing solar photovoltaic modules adopt metal shells and are installed on metal supports or wooden supports. Due to the characteristics of metal, they are easy to oxidize and are not resistant to corrosion, so the life of solar photovoltaic modules is not long. The application number (201020216673.8) discloses a A kind of photovoltaic roof tile, the tile-type back material used is made of ceramic or polymer materials, and its lifespan is much longer than that of metal
[0003] Since the back material of photovoltaic roof tiles is different from that of traditional solar modules, if the traditional production process is used, the back material of the tile type is easily broken, resulting in waste products, and the yield is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The production method of photovoltaic roof tiles, the steps are as follows:

[0028] a. Cell sorting: select a batch of silicon cells with electrical performance parameters within 1%, and the cells have no cracks on the surface;

[0029] b. Monolithic welding: Weld one end of the tin-plated interconnection strip to the negative electrode of the silicon cell;

[0030] c. Welding in series, take multiple silicon cells welded with interconnection strips, weld the other end of the interconnection strips to the positive pole of the adjacent silicon cell to form a string of silicon cells, take multiple strings of silicon cell strings, the first The interconnection bars welded on the positive electrode of the silicon cell and the negative electrode of the tail silicon cell are respectively welded to the bus bar to form a silicon cell group;

[0031] d. Preliminary lamination: on the lamination table, lay a tile-type back material, lay the first layer of encapsulant in the til...

Embodiment 2

[0040] The production method of photovoltaic roof tiles, the steps are as follows:

[0041] a. Cell sorting: select a batch of silicon cells with a difference of electrical performance parameters within 5%, and the cells have no cracks on the surface;

[0042] b. Monolithic welding: Weld one end of the tin-plated interconnection strip to the negative electrode of the silicon cell;

[0043] c. Welding in series, take multiple silicon cells welded with interconnection strips, weld the other end of the interconnection strips to the positive pole of the adjacent silicon cell to form a string of silicon cells, take multiple strings of silicon cell strings, the first The interconnection bars welded on the positive electrode of the silicon cell and the negative electrode of the tail silicon cell are respectively welded to the bus bar to form a silicon cell group;

[0044] d. Preliminary lamination: on the lamination table, lay a tile-type back material, lay the first layer of encapsul...

Embodiment 3

[0053] The production method of photovoltaic roof tiles, the steps are as follows:

[0054] a. Cell sorting: select a batch of silicon cells whose electrical performance parameters are within 3% and have no cracks on the cell surface;

[0055] b. Monolithic welding: Weld one end of the tin-plated interconnection strip to the negative electrode of the silicon cell;

[0056] c. Welding in series, take multiple silicon cells welded with interconnection strips, weld the other end of the interconnection strips to the positive pole of the adjacent silicon cell to form a string of silicon cells, take multiple strings of silicon cell strings, the first The interconnection bars welded on the positive electrode of the silicon cell and the negative electrode of the tail silicon cell are respectively welded to the bus bar to form a silicon cell group;

[0057] d. Preliminary lamination: on the lamination table, lay a tile-type back material, lay the first layer of encapsulant in the tile...

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Abstract

The invention relates to a production method of photovoltaic roof tiles, which comprises the following steps: laminating in twice, and simultaneously stacking in twice, wherein in the primary laminating, products are initially evacuated, silicon cell chips are initially positioned, and package sealing compounds are initially hot melted and crosslinked; and a second layer of package sealing compounds is laid after the temperature is reduced to room temperature, and the secondary laminating is carried out after a glass covering plate is placed on the package sealing compounds. The invention hastwo-time laminating technology so as to effectively control the offset of the silicon cell chips in the laminating process, extremely improve the arrangement accuracy of cell units, and extremely reduce fracture of tile type back pieces and the silicon cell chips; optimized technology parameters ensure the optimum crosslinking extent of the package sealing compounds, and ensure the ultraviolet and aging resistant performance of the products to the full extent; and simultaneously, the optimized technology parameters are greatly reduced so as to basically avoid bubbles remained in the products.

Description

technical field [0001] The invention relates to a production method of a solar battery module, in particular to a production method of photovoltaic roof tiles. Background technique [0002] As a renewable energy source, solar energy has the advantages of cleanliness and environmental protection. In today's deteriorating environment, solar energy is being used more and more. Photoelectric technology, as a better way to utilize solar energy, is gradually becoming an important means of power generation. Most of the existing solar photovoltaic modules adopt metal shells and are installed on metal supports or wooden supports. Due to the characteristics of metal, they are easy to oxidize and are not resistant to corrosion, so the life of solar photovoltaic modules is not long. The application number (201020216673.8) discloses a A kind of photovoltaic roof tile, the tile back material used is made of ceramic or polymer material, and its lifespan is much longer than that of metal. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04D13/18B32B37/02B32B37/06B32B37/10H02N6/00H01L31/18
CPCY02B10/12Y02B10/10Y02P70/50
Inventor 王琰琨陈兵斌邹宏战王帅马超张钰亮
Owner 浙江贝盛绿能科技有限公司
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