Peripheral sealing framework of photovoltaic module

Abstract

The invention discloses a peripheral sealing framework of a photovoltaic module. The peripheral sealing framework of the photovoltaic module is composed of short frames or long frames, each short frame comprises a first U-shaped section bar and an L-shaped section bar, a groove is formed in one side of the short frame, the other side of the short frame is connected with the short edge of the L-shaped section bar and forms a U-shaped groove with the long edge of the L-shaped section bar, the bottom of the first U-shaped section bar and the bottom of the L-shaped section bar are on the same horizontal plane, the bottom of the L-shaped section bar exceeds the bottom of the first U-shaped section bar for a certain distance in the length direction, and a first screw hole is formed in one side of the groove which is formed in the first U-shaped section bar. Each long frame comprises a second U-shaped section bar and a rectangular section bar, a groove is formed in one side of the long frame, the other side of the long frame extends outwards in the length direction and forms the rectangular section bar, and a second screw hole corresponding to the first screw hole is formed in the rectangular section bar. The peripheral sealing framework of the photovoltaic module has the advantages of being capable of meeting the basic sealing and protecting requirements, low in cost, convenient to machine and mount, wide in application range, strong in universality and the like.

Description

technical field [0001] The invention belongs to the field of photovoltaic products, and relates to a peripheral sealing frame of a photovoltaic module. Background technique [0002] At present, there are several forms of peripheral packaging of photovoltaic modules known in the following forms, which are conventional aluminum profile packaging, single-sided adhesive strip packaging or frameless modules without packaging materials. The peripheral sealing of the component is very important to the reliability of the component. First, the important raw material of the component-tempered glass is a high-stress material. When the edge is subjected to force, it is easy to cause the entire glass to break, resulting in the scrapping of the component; secondly, the peripheral sealing It also plays a waterproof role to prevent water vapor from contacting the EVA layer in the laminate, thereby affecting the life of EVA and reducing the life of the module; so the peripheral sealing of ph...

AI Technical Summary

Problems solved by technology

The peripheral sealing of the component is very important to the reliability of the component. First, the important raw material of the component-tempered glass is a high-stress material. When the edge is subjected to force, it is easy to cause the entire glass to break, resulting in the scrapping of the component; secondly, the peripheral sealing It also plays a waterproof role to prevent water vapor from contacting the EVA layer in the laminate, thereby affecting the life of EVA and reducing the life of the module; so the peripheral sealing of photovoltaic solar modules is very important

[0003] The main disadvantage of using single-sided rubber strips for sealing is that the life of the rubber strips is short, it is easy to fall off, and it is more likely to cause wear during transportation and damage its sealing performance; in addition, because the rubber strips are thin, their cushioning capacity is limited and cannot be well protected. Tempered glass, so the best peripheral sealing is to use aluminum frame

However, the conventional aluminum frame has the following disadvantages: the linear density is high, causing the weight of the aluminum frame to account for nearly one-fifth of the weight of the entire module, and the smaller the module area, the greater its specific gravity. At the same time, another side effect of high linear density is high cost; Secondly, multiple processes are required before the aluminum profile is installed on the component, especially the processing of mounting holes, water outlet holes and grounding holes. Due to the different design drawings of various manufacturers, different punching dies must be designed for the same type of component. It causes a lot of waste, and because the mounting hole and the component are integrated, when the component is installed, the components of different manufacturers often need to design different bracket drawings, which greatly affects the installation efficiency and the versatility of the product.

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