Method and device for soldering connection leads with a solar cell

摘要

The method for soldering connecting conductors (8, 9) with connection contacts (11, 12) of a solar cell, comprises positioning the solar cell and the connecting conductors in a stacking arrangement (19) on a heating plain so that the connection conductor is arranged above and/or below the solar cell. The stacking arrangement is homogeneously heated and an activation member (4) is implemented from top to the stacking arrangement through which ultrasound oscillations are transferred to the stacking arrangement at a static place, where additional energy is brought to fluxless soldering. The method for soldering connecting conductors (8, 9) with connection contacts (11, 12) of a solar cell, comprises positioning the solar cell and the connecting conductors in a stacking arrangement (19) on a heating plain so that the connection conductor is arranged above and/or below the solar cell. The stacking arrangement is homogeneously heated and an activation member (4) is implemented from top to the stacking arrangement through which ultrasound oscillations are transferred to the stacking arrangement at a static place, where additional energy is brought to fluxless soldering. The stacking arrangement is heated at a temperature below the soldering temperature through homogeneous heating and additional energy is transferred for reaching the soldering temperature at the stacking arrangement through the activation member. Heat is produced in the heating plain and is forwarded to the stacking arrangement so that the homogeneous heating of the stacking arrangement is carried out. The heat produced through the activation member is guided as ultrasound oscillations in the stacking arrangement. The activation member is led away from the stacking arrangement after reaching the soldering temperature, where a heat dissipation member stands in contact with the stacking arrangement. Two activating members are used, where heat is produced in the second activation member. After introducing the activation member, heat produced in the activation member is conducted into the stacking arrangement and subsequently the ultrasound oscillations are conducted. The connecting conductor comprises a coating on the side turned to the solar cell, where a solder (15, 17) is formed through the coating. The solar cell is implemented for the production of a solar cell chain through a conveyor- or transferring device. During soldering the solar cell with the connecting conductor, the positioning of the solar cell to be soldered and the connecting conductor is carried out on the conveyor- or transferring device. An independent claim is included for a device for soldering connecting conductors with connection contacts of a solar cell.