Anti-light attenuation equipment for solar cells and its loading and unloading system and loading and unloading method
A solar cell, cell technology, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of hindering the backside migration of carriers, engulfing power, etc., to save equipment, save time, and increase yield.
Active Publication Date: 2019-12-17
WUHAN DR LASER TECH CORP LTD
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Problems solved by technology
However, because the improvement of its efficiency comes from the passivation of the back of the cell and the improvement of the back reflection performance, the existence of the boron-oxygen complex hinders the migration of carriers to the back, which greatly swallows the power increase brought by the high-efficiency cell structure, resulting in PERC’s high efficiency. The structure has more serious light induced degradation (Light Induced Degradation, LID) than conventional aluminum back field cells
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[0039] The present invention will be further described below in conjunction with specific examples and accompanying drawings.
[0040] The invention provides a loading and unloading system for anti-light decay equipment of solar cells, such as figure 1 As shown, it includes:
[0041] At least one set of feeding components, each group of feeding components includes at least one feeding transfer module 2 for transferring the battery sheet 12 from the end of the previous process to the front end of the processing platform 5 of the anti-light decay equipment, the feeding transfer module There is a preparation station at the end of group 2. Such as figure 2 with Figure 8 As shown, the feeding transfer module 2 includes several general transfer modules 2-7 arranged in sequence and a terminal transfer module 2-6 positioned at the rear end of the general transfer module 2-7, each general transfer module 2 The length of -7 is less than the distance between two adjacent cells so t...
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The invention provides solar cell light attenuation resistant equipment. The light attenuation resistant equipment comprises a body, wherein a laser generator module is arranged at the top of the body, a working platform is arranged at a lower part of the body and is matched with the laser generator module to perform a light attenuation resistant process, and the light attenuation equipment also comprises a solar cell light attenuation resistant equipment loading and unloading system. The solar cell light attenuation resistant equipment loading and unloading system comprises a loading assembly, a transfer assembly, an unloading assembly and a control system, wherein the loading assembly comprises a loading transmission module, a preparation station is arranged at a tail end of the loadingtransmission module, the transfer assembly comprises a linear motion mechanism, a loading transfer assembly and an unloading transfer assembly, the loading transfer assembly and the unloading transferassembly are arranged on the linear motion mechanism, the unloading assembly comprises an unloading transmission module, the unloading transmission module is used for transmitting a processed batterypiece to a next process, the loading transfer assembly comprises a loading suction disc assembly, and the unloading transfer assembly comprises an unloading suction disc assembly and a cooling module. With the adoption of the light attenuation resistant equipment and the loading and unloading system and the loading and unloading method thereof, abutting between a previous process and the next process can be achieved, and the production efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of solar cell processing, and in particular relates to a solar cell sheet anti-light decay device, a loading and unloading system and a loading and unloading method thereof. Background technique [0002] PERC technology has high compatibility with conventional cell production lines, low investment in production line transformation, and obvious efficiency improvement effect. Its successful industrial application has greatly enhanced the competitiveness of P-type crystalline silicon. PERC technology has also become the most cost-effective crystalline silicon solar cell in recent years. means of improving efficiency. However, since the improvement of its efficiency comes from the passivation of the back of the cell and the improvement of the back reflection performance, the existence of the boron-oxygen compound hinders the migration of carriers to the back, which greatly swallows the power increase brought by ...
Claims
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IPC IPC(8): H01L21/677H01L31/18
CPCH01L21/67706H01L21/6773H01L21/67736H01L31/1864Y02E10/50Y02P70/50
Inventor 李志刚雷合鸿黄海
Owner WUHAN DR LASER TECH CORP LTD