Aluminum frame for package of solar cell module

Abstract

The invention relates to an aluminum frame for package of a solar cell module. The aluminum frame comprises a notch outside edge, a notch inside edge, a notch bottom edge and a notch, wherein the notch is formed by enclosing of the notch outside edge, the notch inside edge and the notch bottom edge; a positioning bulge and a glue containing groove are both arranged on the inside surfaces of the notch outside edge and the notch inside edge; a distance between the top surface of the positioning bulge on the notch outside edge and the top surface of the positioning bulge on the notch inside edge corresponds to the thickness of a cell lamination member; lead-in inclined surfaces are respectively arranged at the inlet ends of the notch outside edge and the notch inside edge so that accurate positioning of the cell lamination member at the notch is ensured; a plurality of sealing strips can be formed on the notch outside edge and the notch inside edge after the cell lamination member is packaged due to the arrangement of the glue containing groove, therefore the sealing performance at the periphery of the cell lamination member is improved, and the bonding strength between the aluminium frame and the cell lamination member is improved; and because the glue containing groove is arranged on the notch bottom edge, an elastic space for expansion caused by heat and shrinkage caused by cold is reserved for the cell lamination member.

Description

Technical field: [0001] The invention relates to a solar cell assembly, in particular to an aluminum frame for packaging in the solar cell assembly. Background technique: [0002] The solar cell module is the core part of the photoelectric conversion in the solar power generation system. The battery laminate is the core part of the photoelectric conversion. It must be used outdoors, so it must be packaged and protected with aluminum frame tape. If the battery laminate The surroundings of the solar panels are not well sealed during the encapsulation process. Rainwater or long-term work in a high-humidity environment will accelerate the damage of the battery laminate, resulting in the failure of the solar panel to work normally. The basic requirement for encapsulation is sealing. At present, battery laminates are sealed and packaged through aluminum frame profiles with silica gel. The specific packaging and sealing method is: use aluminum profile frames and silica gel to encap...

AI Technical Summary

Problems solved by technology

Since the notch 5 of the existing aluminum frame is a rectangular structure, the outer side 2 of the notch, the inner side 3 of the notch and the bottom side 4 of the notch are all smooth plane structures, when the silica gel is injected into the notch 5, the battery laminate When inserted, the battery laminate does not sit consistently in the slot, either in contact with the outside edge 2 of the slot, or with the inside edge 3 of the slot, or with the outside edge 2 of the slot and the inside edge 3 of the slot When the glass surface of the battery laminate is in contact with the outer edge 2 of the notch, there will be insufficient adhesive capacity between the glass surface and the outer edge 2 of the notch, resulting in a small gap. When used outdoors, after being exposed to the sun, rain, wind, snow, and frost, the original tiny gaps will be enlarged, thereby affecting the sealing performance of the battery laminate; when the back plate and the groove of the battery laminate When the inner side of the mouth is in contact, the above defects will also occur

On the other hand, the regular rectangular cross-section is not conducive to the strong bonding between the aluminum frame and the battery laminate through silicone, and the bonding strength is not high

Leaving uncertain hidden dangers of sealing quality for the long-term reliable use of solar cell modules in the future

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