Solar silicon single crystal rod
A single crystal silicon rod and solar energy technology, applied in the field of silicon rods, can solve the problems of misalignment of silicon rods, uneven thickness of wafers, low cutting efficiency, etc., and achieve the effect of improving quality and avoiding uneven thickness
Inactive Publication Date: 2012-12-19
ZNSHINE PV TECH
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Problems solved by technology
During wire cutting of single crystal silicon ingots, when the wire net touches the surface of the ingot, the silicon ingots will easily swing due to the force, which will easily cause the thickness of the cut wafers to be uneven, which will lead to poor performance of the wafers. In addition, the current The existing monocrystalline silicon rods can only be cut by a single silicon rod, and the cutting efficiency is low. If they are superimposed for cutting, the silicon rods will be misaligned and the cutting will be uneven.
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[0014] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0015] Such as figure 1 and figure 2 The solar monocrystalline silicon rods shown are composed of a plurality of monocrystalline silicon rods 1 with a length of 250 mm. The angle between the edge and the edge is 60°. On the upper surface of the single crystal silicon rod 1, there is a protective film 2 that fits the single crystal silicon rod 1. The protective film 2 is covered with a material made of epoxy resin. The sticking layer 3 of the monocrystalline silicon rod body 1 is provided with a bottom plate 4, the bottom plate 4 is coated with an epoxy resin sticking layer 5, both sides of the single crystal silicon rod body 1 are provided with baffles 6, a...
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Abstract
The invention relates to a solar silicon single crystal rod. The solar silicon single crystal rod is composed of a plurality of silicon single crystal rod bodies, wherein protection films which are adhered to the silicon single crystal rod bodies are arranged on the upper surfaces of the silicon single crystal rod bodies, adhering layers are covered on the protection films, bottom boards are arranged at the lower parts of the silicon single crystal rod bodies, the bottom boards are coated with epoxy resin adhering layers, two sides of the silicon single crystal rod bodies are provided with baffle boards, and the silicon single crystal rod bodies are adhered to the bottom boards through the baffle boards. According to the solar silicon single crystal rod disclosed by the invention, the phenomenon of uneven thickness can be prevented from happening during the wire mesh cutting due to the solar silicon single crystal rod, and the quality of a wafer can be effectively increased.
Description
technical field [0001] The invention relates to the field of silicon rods, in particular to a solar single crystal silicon rod. Background technique [0002] At present, the world's photovoltaic industry is developing rapidly with an average annual growth rate of 31.2%, ranking first in the growth rate of the global energy power generation market. According to this trend, various countries have introduced powerful policies or formulated development plans one after another, making the photovoltaic market present a pattern of vigorous development. In recent years, with the rapid development of the photovoltaic industry, monocrystalline silicon has been used to make solar cells, presenting a situation in short supply. When the solar panel is irradiated by sunlight, the light energy is immediately converted into electrical energy, and it can generate electricity continuously, and can work continuously for more than 20 years. The direct current generated by it can be directly s...
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IPC IPC(8): B28D7/00
Inventor 王桂奋谢德兵王迎春
Owner ZNSHINE PV TECH