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Photovoltaic module and packaging method thereof

A photovoltaic module packaging and photovoltaic module technology, applied in the direction of photovoltaic power generation, electrical components, semiconductor devices, etc., can solve the problems of internal stress without corresponding design and hidden quality problems, so as to alleviate the internal stress of components, improve output rate, solve Effects of Cracking and Fragmentation Issues

Pending Publication Date: 2022-06-17
英利能源发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no corresponding design on how to eliminate the internal stress caused by the smaller spacing in the production process, so the hidden quality problems still need to be solved
[0004] The purpose of this application is to provide a large-size battery component and its packaging method, aiming to solve the technical problem of hidden quality problems in the current small-pitch large-size battery components

Method used

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  • Photovoltaic module and packaging method thereof
  • Photovoltaic module and packaging method thereof
  • Photovoltaic module and packaging method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Embodiment 1 of the present application provides a photovoltaic module, comprising several battery strings, each string of cells comprising several sliced ​​cells 1 , and the sliced ​​cells 1 are several sliced ​​cells of the same size obtained by cutting large-sized cell slices by a non-destructive technique;

[0048] The busbar line 11 of the sliced ​​battery 1 is engraved with a U-shaped notch 111 , and the U-shaped notch 111 is obtained by scribing along the center line of the busbar 11 through a non-destructive technique, and the scribed width is smaller than the minimum width of the busbar 11 , the depth is less than the height of the busbar 11;

[0049] The front busbars and the rear busbars of adjacent sliced ​​cells 1 in each string of cells are connected by grid wire bonding tapes 2;

[0050] Before connecting, apply conductive glue 3 at the opening of U-shaped groove 111 of main grid line 11, and place adhesive film gasket 4 at the angle between grid line wel...

Embodiment 2

[0059] On the basis of the above photovoltaic components, the second embodiment of the present application provides a packaging method for photovoltaic components, including the following process flow:

[0060] Place the large-sized battery horizontally, and cut the large-sized battery into several sliced ​​batteries 1 of the same size using laser or other non-destructive cutting technology along the direction parallel to the fine grid of the battery;

[0061] The busbar line 11 of the sliced ​​battery 1 is scribed, and laser or other non-destructive techniques are used to scribe a width smaller than the minimum width of the busbar line 11 and a depth smaller than the height of the busbar line 11 along the center line of the busbar line of the sliced ​​battery 1 . U-shaped notch 111; sliced ​​battery 1 after scribing figure 2 shown;

[0062] Apply conductive adhesive 3 to the opening of the U-shaped groove 111 to ensure that the conductive adhesive 3 completely covers the op...

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Abstract

The invention relates to the technical field of photovoltaic modules, and particularly discloses a photovoltaic module and a packaging method thereof, the photovoltaic module comprises a plurality of battery strings, each battery string comprises a plurality of slice batteries, and a U-shaped notch groove is carved on a main grid line of each slice battery along a central line of the main grid line; the grid line welding strips are connected with the front main grid lines and the back main grid lines of the two adjacent slice batteries; the conductive adhesive is coated at the opening of the U-shaped groove of the main grid line and is used for fixing the grid line welding strip; and the adhesive film filler strip is supported and placed at an included angle between the grid line welding strip and the edge of the slice battery and is in contact with the edge of the slice battery. According to the photovoltaic module and the packaging method thereof, the internal stress of the module generated in the production link can be relieved, the yield of qualified products of the module is improved, and the problem of potential quality hazards existing in large-size battery modules is effectively reduced.

Description

technical field [0001] The present invention relates to the technical field of photovoltaic components, and more particularly, to a photovoltaic component and a packaging method thereof. Background technique [0002] Photovoltaic modules use welding strips and bus strips to connect the cells in series and parallel, and encapsulate them with materials such as adhesive film, glass, and backplane. The packaging of photovoltaic modules is a key link of the module, which not only affects the power of the module, but also affects the quality of components. At present, the welding strips used between the cells are mostly circular welding strips. After the welding strips and grid lines are placed in a superimposed position, they are welded and connected by welding equipment. The contact between the circular welding strips and the battery is similar to a line contact. Most of the welding strips are flattened. Due to the limitation of equipment accuracy, the thickness of each flatten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/05H01L31/048H01L31/18
CPCH01L31/0516H01L31/048H01L31/188Y02E10/50
Inventor 何毅耿亚飞李亚彬冯天顺邢少辉麻超荣丹丹蒋京娜张颖鲁晓辉侯芳
Owner 英利能源发展有限公司
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