Solar panel component and processing technology

Abstract

The invention discloses a solar panel component and a processing technology. The solar panel component mainly comprises components, wherein the components comprise a battery piece, a glass layer, a backboard and a frame on the outer side, wherein the upper end of the battery piece is provided with a silicon nitride passivation antireflection layer; the electrode grid lines of the battery piece are formed in a way that fragmented main grid lines and grouped thin grid lines are arranged in parallel and are connected by auxiliary grid lines; and the frame comprises an integral frame and a detachable frame. By use of the solar panel component and the processing technology provided by the invention, the internal laminated structure and the external frame structure of the solar panel are improved to lower power loss, improve a photoelectric conversion rate and prolong the service life of the solar panel component.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a solar cell panel component and a processing technology. Background technique [0002] Existing solar panel components are usually assembled by stacking tempered glass layer, EVA layer, cell sheet layer, EVA layer, and coated aluminum alloy backplane layer at one time, and then packaged with an outer frame. How to reduce the total power loss of solar panels, how to prolong the service life of solar panels, and how to improve the light energy utilization efficiency of solar panels have always been the subject of research in this field. Although the existing photovoltaic field is relatively mature, there are still many problems in the solar panel manufacturing process: (1), the overall design of the grid line density (the number of lines per unit area) and the width is not reasonable enough. Specifically reflected in: 1), some reduce the width of the grid line in order to reduce the sh...

AI Technical Summary

Problems solved by technology

Although the existing photovoltaic field is relatively mature, there are still many problems in the manufacturing process of solar panels: (1), the overall design of the grid line density (number of lines per unit area) and width is not reasonable enough

Specifically reflected in: 1), some reduce the width of the grid line in order to reduce the shading loss of the grid line, which will easily lead to an increase in electrode resistance, which is not conducive to the conduction of current. fail

2) Some even simply move the main grid lines to the edge of the solar panel, which undoubtedly increases the distance for the thin grid lines to conduct current to the main grid lines and reduces the photoelectric conversion efficiency

3) Some of the multiple main grid lines distributed on the fine grid lines are processed in sections. Since the main grid lines and the auxiliary grid lines need to be well connected to ensure continuous conduction, this processing method greatly increases production. The complexity of the process leads to an increase in the failure rate of electrode printing

(2) In order to increase the refractive index of solar panels and reduce the potential-induced attenuation effect, silicon nitride films are generally coated on the back and surrounding areas after etching. Due to the influence of film layer settings and processes, corresponding short-circuit currents are caused. also decreased, resulting in lower conversion rates.

(3) The function of the existing solar panel frame structure is relatively single, which is specifically reflected in: 1) The fastening components are loosened due to corrosion due to the influence of rainwater penetration, which in turn destroys the internal structure and ultimately affects the service life of the entire solar panel

2) The load resistance to wind and snow loads is not strong, and it is easy to cause the wear of the bottom sheet or the damage of the unit due to the collision or friction between the back of the back plate and the reinforcement frame

3) Due to the poor positioning of the traditional frame, there are problems such as misalignment and corner seams, which make the assembly process difficult

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