Quartz glass short-wave halogen infrared lamps are used for solar cell stringers:
Application scenarios
Single crystal silicon solar cell stringing: In the production of single crystal silicon solar cells, quartz glass IR shortwave heating lamp are used to weld the metal electrodes of the cells. The electrode materials of single crystal silicon cells are usually metal materials such as silver paste. Using infrared lamps to heat can quickly melt the solder and make the solder tightly bonded to the electrodes. For example, on the production line of solar cell modules, when the cells pass through the stringing station, the short-wave halogen infrared lamp heats the cell electrodes and solder to achieve efficient stringing of the cells, ensuring the electrical performance and stability of the solar cell modules.
Polycrystalline silicon solar cell stringing: The electrode structure and materials of polycrystalline silicon solar cells are similar to those of monocrystalline silicon cells. IR Halogen Heat lamp can also be used in the stringing process of polycrystalline silicon cells. Since the surface structure of polycrystalline silicon cells is relatively complex, by reasonably adjusting the power and irradiation time of the infrared lamp, the solder can be melted evenly at different grain boundaries and electrode surfaces, ensuring the reliability of the connection between cells and improving the power output and service life of solar cell modules.
Thin-film solar cell series connection (some cases): For some thin-film solar cells with metal electrodes, such as copper indium gallium selenide (CIGS) thin-film cells and cadmium telluride (CdTe) thin-film cells, Halogen Heating Heater Lamps can also be used for heating in the electrode connection process. However, the electrode materials and structures of thin-film solar cells may be different from those of crystalline silicon cells, and the parameters of the infrared lamps need to be adjusted according to the specific cell structure and material properties to achieve a good series connection effect.
Advantages
Fast and efficient heating performance: infrared halogen heating lamp can quickly heat the solder to the melting point, greatly shortening the welding time during the series connection of solar cells. Compared with traditional heating methods (such as hot plate heating), its heating speed can be increased by 50% – 70%. For example, in the conventional series connection of solar cells, it may only take a few seconds to complete the welding of a solder joint using short-wave halogen infrared lamps, which helps to improve the production efficiency of solar cell modules.
Accurate temperature control capability: This IR glass infrared halogen heater emitter can be combined with advanced temperature control systems to accurately control the welding temperature. Different solders have different melting points and optimal welding temperature ranges. By adjusting the lamp power, irradiation time and other parameters, the temperature can be controlled within a very precise range. This is essential to ensure a good connection quality between the solar cell electrode and the solder, avoiding excessive melting of the solder due to high temperature, damage to the electrode material, or loose welding due to low temperature.
Good energy concentration and heating uniformity: The short-wave infrared emitted by the IR infrared heater halogen heating element has good energy concentration and can produce a strong heating effect in a smaller area. At the same time, through reasonable IR infra red heater halogen tube bulb layout and reflection devices, relatively uniform heating can be achieved on the surface of the solar cell electrode and solder. This is very important to ensure the consistency of welding quality, especially in the mass production of solar cell modules, to ensure that the quality of each solder joint is relatively stable, thereby improving the performance of the entire module.
Less damage to the cell: Since the short-wave infrared heating method is a non-contact radiation heating, it has less mechanical damage and thermal shock to the solar cell itself compared to some contact heating methods. During the welding process, the battery cells will not break or have electrodes fall off due to external pressure or excessive heat conduction, which helps to improve the yield rate of solar cells.
