Abstract: A lamination heat plate based on electric heating is disclosed. The lamination heat plate is provided with a lamination zone for placing a module, and a heat preservation zone at the edge; a plurality of electric heating elements and temperature sensors that are evenly arranged are provided in the lamination zone and the heat preservation zone respectively, and the number of the electric heating elements is more than that of the temperature sensors; and the electric heating elements and the temperature sensors are respectively electrically connected to heating controllers. The disclosure can effectively ensure the overall temperature uniformity of the lamination heat plate in the lamination process, and can solve the problem of uneven temperature between the edge of the lamination heat plate and the middle portion where the module is placed caused by conventional oil heating.

Abstract: The present disclosure discloses a device for welding a bus bar of a solar cell, including a welding platform, a laser, a sensor and a laser adjustment mechanism. The laser is disposed over the welding platform. The laser adjustment mechanism is connected to the laser. The surface of the welding platform is provided with the sensor. In the device for welding a bus bar of a solar cell according to the present disclosure, laser welding is employed instead of the conventional manual soldering iron welding and resistance heating welding, and the power of the laser can be adjusted as desired with the laser adjustment mechanism, thereby better controlling the accuracy and uniformity of the welding temperature of the bus bar. Compared with the related art, it can improve the welding quality of the bus bar, avoid the positional deviation between the bus bar and the drain bar, reduce the bad phenomenon such as the false welding or the missing welding and improve the overall performance of the photovoltaic module.

Abstract: A system and method for printing electrodes of a solar cell by automatically positioning are provided. The system includes: a transparent glass plate configured to support a solar cell, an electrode printing apparatus arranged above the transparent glass plate and configured to form electrodes on the solar cell by screen printing, a visual positioning module arranged right below the transparent glass plate and configured to acquire position information of the solar cell, and a main control module configured to adjust a position of the electrode printing apparatus according to the position information sent by the visual positioning module.

Abstract: The present application discloses a device for diffusion of texture cleaning liquid, including a tank, a first turbulent plate and a second turbulent plate. The tank is provided with a liquid inlet; the first turbulent plate is fixed to and connected with the tank and is provided with a plurality of first orifices in interval; the second turbulent plate is fixed to and connected with the tank and is provided with a plurality of second orifices, and projection of each of the first orifices and projection of each of the second orifices on a plane where the liquid inlet is located are distributed in an alternate manner. The liquid inlet, the first turbulent plate, and the second turbulent plate are arranged sequentially in a liquid spraying direction.