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Double glass module eva and glass bonding performance testing method

A technology of double-glass components and detection methods, applied in semiconductor/solid-state device testing/measurement, electrical components, semiconductor devices, etc., can solve the problems of component electrical performance safety, component stratification, affecting service life, etc. , Reduce the risk of use, and improve the effect of testing data

Active Publication Date: 2019-01-04
YINGLI ENERGY CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a problem with the bonding performance of EVA and glass, which will not only cause delamination of the component and affect the service life, but also cause serious problems in the electrical performance of the component.

Method used

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  • Double glass module eva and glass bonding performance testing method
  • Double glass module eva and glass bonding performance testing method
  • Double glass module eva and glass bonding performance testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 2 As shown, the embodiment of the present invention discloses a double-glass component EVA and glass bonding performance detection method, the method includes the following steps:

[0028] S101: Place the lower glass on a flat surface, arrange four pieces of Teflon high-temperature cloth at the four corners of the lower glass, and add a piece of Teflon high-temperature cloth between the two corners of the long side of the lower glass High-temperature cloth; then cover the lower layer of EVA, battery strings, upper layer of EVA, back plate and upper glass in turn, the number and position of the back plate correspond to the Teflon high-temperature cloth, and the battery string is located without Teflon high-temperature cloth. Cloth, preferably, the Teflon high temperature cloth is a square with a side length of 30cm, the distance between the Teflon high temperature cloth at the four corners of the lower glass is 20cm from the short side of the lower glass,...

Embodiment 2

[0033] Such as image 3 As shown, the embodiment of the present invention discloses a double-glass component EVA and glass bonding performance detection method, the method includes the following steps:

[0034] S201: Place the lower glass on a plane, arrange four pieces of Teflon high-temperature cloth at the four corners of the lower glass, and add a piece of Teflon high-temperature cloth between the two corners of the long side of the lower glass High-temperature cloth; then cover the lower layer of EVA, battery strings, upper layer of EVA, back plate and upper glass in turn, the number and position of the back plate correspond to the Teflon high-temperature cloth, and the battery string is located without Teflon high-temperature cloth. Cloth, preferably, the Teflon high temperature cloth is a square with a side length of 30cm, the distance between the Teflon high temperature cloth at the four corners of the lower glass is 20cm from the short side of the lower glass, and the...

Embodiment 3

[0040] Such as Figure 4 As shown, the embodiment of the present invention discloses a double-glass component EVA and glass bonding performance detection method, the method includes the following steps:

[0041] S301: Material preparation: Prepare the upper and lower glass, Teflon high-temperature cloth, upper and lower EVA, back plate and battery string of the double-glass module, and make several pieces of Teflon high-temperature cloth into a 30*30cm square shape;

[0042] 2) Preliminary sample preparation: place the lower glass on a flat surface, cover the lower EVA, arrange the first piece of Teflon high-temperature cloth at a position 20cm from the short side edge of the glass and 10cm from the long side edge, and place the third piece in the same way. The Teflon high-temperature cloth at positions 4 and 6, and the Teflon high-temperature cloth at positions 2 and 5 are arranged in the middle of the long side, 10cm away from the edge of the long side. After the Teflon hig...

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Abstract

The present invention discloses a double glass component EVA and glass adhesion property detection method, which relate to the technical field of adhesive property testing. The method comprises the following steps: preparing a test sample in which a piece of lower glass is placed on the plane, the four corners of the lower glass are provided with four pieces of Teflon high temperature cloth and one more piece of Teflon high temperature cloth is arranged between the two corners at the longer edge of the lower glass; sending the test sample to a laminator for lamination; using a cutting tool to cut the backboard at the upper side of each piece of Teflon high temperature cloth into long strips; fixing the test sample on the test bench of a ensile testing machine; and using a clamp to clamp the already cut backboard and one end of an adhesive tape composed of the upper EVA and the lower EVA to perform a 180-degree peel test between the EVA at the corresponding position and the glass. In the method, it is possible to obtain the real values of the EVA and the glass adhesive property inside a component, provide reliable detection data for the production process, guarantee the product quality of the double glass component and reduce the use risk of the component.

Description

technical field [0001] The invention relates to the technical field of testing methods for bonding performance, in particular to a method for testing the bonding performance of double-glass components EVA and glass. Background technique [0002] Photovoltaic module is the core part of the photovoltaic power generation system, and it is also the most valuable part of the photovoltaic power generation system. Its function is to convert solar energy into electrical energy, or send it to the battery for storage, or drive the load to work. Its structure is as follows: figure 1 shown. Double-glass module is a solar photovoltaic module that uses glass instead of TPE or TPT (Tedlar composite film) as the backsheet material of the module. EVA is an ethylene-vinyl acetate copolymer. When heated to a certain temperature, EVA is in a molten state. The cross-linking agent in the formula decomposes to generate free radicals and initiates the combination of EVA long-chain molecules. It is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L21/66H01L31/18H01L31/048
CPCH01L22/12H01L31/0488H01L31/18Y02E10/50Y02P70/50
Inventor 王永泽耿亚飞段青春李学健王帆李亚彬
Owner YINGLI ENERGY CHINA
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