Welding tooling for welding ribbons on solar cells
A solar cell and welding tooling technology, which is applied in the direction of electric heating devices, welding equipment, circuits, etc., can solve the problems of increasing the fragmentation rate of solar cells, cracking of solar cells, cracking or cracking of cells, and reducing fragmentation The probability of reducing the temperature difference, reducing the effect of cracking or cracking
Active Publication Date: 2016-09-14
SUZHOU AIKANG PHOTOELECTRIC TECH CO LTD
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Problems solved by technology
During the above welding process, it is inevitable that there will be accumulated solder at the end of welding, which will easily lead to cracks or cracks in the battery sheet at the end of welding, and the welding temperature of the welding tool (generally 340-380 ℃) is much higher than that of solar energy. The temperature of the battery sheet will generate a lot of thermal stress during the welding process, which is prone to cracking or cracking of the solar cell sheet, thereby increasing the fragmentation rate of the solar cell sheet, and the production cost of the enterprise is relatively high
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[0010] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0011] Such as figure 1 As shown, the welding tooling for welding ribbons on solar cells described in this embodiment includes: a working platform 1, on which a preheating device 2 is fixedly arranged, and the preheating device 2 is arranged obliquely toward the operator. The preheating temperature of the preheating device 2 described in the embodiment is controlled within the range of 50-70°C, and the inclination angle α between the preheating device 2 and the working platform 1 is 10-30 degrees; the solar cells 5 are placed in the preheating device 2, a positioning block 3 is fixedly arranged at the lower end of the preheating device 2, and the positioning block 3 fixes the lower end of the solar battery sheet 5 placed on the preheating device 2, so as to prevent the solar battery sheet 5 from going downw...
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The invention discloses a welding tool for welding a solder strip on a solar cell sheet. According to the welding tool, the solder strip can be welded to a main grid of the solar cell sheet. The welding tool comprises a working platform, a preheating device is obliquely arranged on the working platform, the solar cell sheet is placed on the preheating device, the lower end of the preheating device is fixedly provided with a positioning block, the positioning block fixes the lower end of the solar cell sheet placed on the preheating device to prevent the solar cell sheet from sliding downwards during the welding process, the positioning block is fixedly provided with strip-shaped high-temperature cloth which is fixed to the positioning block in an adhering mode and extends outwards, and the extending-out part of the strip-shaped high-temperature cloth is padded on the part, located outside the welding terminal point, of the solar cell sheet. The welding tool has the advantages that the breakage rate of the solar cell sheet during the welding process is effectively reduced, the yield of the finished solar cell sheet is improved, and production cost of enterprises is greatly reduced.
Description
technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a welding tool for welding ribbons on solar cells for welding the ribbons to the main grid of solar cells. Background technique [0002] The welding process of welding the ribbon on the main grid of the solar cell is an important process in the production process of photovoltaic modules. The main function of the ribbon is to collect the current on the solar cell and transmit the current. At present, in industrialized production, the soldering of the ribbon on the solar cells is mainly done by manual welding: first place the surface of the solar cell to be welded on the working platform, then place the soldering ribbon on the busbar and press the soldering At the same time, use a welding tool such as an electric soldering iron to weld the ribbon to the busbar. During welding, the high temperature generated by the welding tool melts the tin layer on the surface of the ribbon...
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IPC IPC(8): H01L31/18B23K3/00B23K3/08B23K3/04
CPCB23K3/04B23K3/087B23K2101/40Y02P70/50
Inventor陈长征
OwnerSUZHOU AIKANG PHOTOELECTRIC TECH CO LTD