Photovoltaic series welding machine with preheating device

Abstract

The invention discloses a photovoltaic series welding machine with a preheating device. The photovoltaic series welding machine comprises a welding machine frame, a belt for conveying multiple main grid batteries is arranged at the top of the welding machine frame, a welding lamp box is arranged above the welding machine frame, an infrared preheating device is arranged on the welding frame, the infrared preheating device is arranged below the belt and is attached to the belt, and the welding lamp box is located in the discharging direction of the infrared preheating device in the conveying direction of the belt. The photovoltaic series welding machine has the beneficial effects that an aluminum oxide ceramic plate is adopted as a heat conduction plate, a high-precision thermocouple and a controller are matched, the multiple main grid batteries can be preheated to the optimal welding temperature of a welding strip in a preheating area, so that the problems of over welding and pseudo welding in the welding process are solved, and the welding quality is improved; and the multiple main grid batteries are laid and integrally welded, thus, the problem that the production takt is not matched due to the fact that the welding time is long and the laying time is short is solved, and the welding efficiency can be improved.

Description

technical field [0001] The invention relates to the field of small machinery for house decoration and construction, in particular to a photovoltaic stringer with a preheating device. Background technique [0002] As an environmentally friendly and renewable clean energy, solar cells will shoulder the arduous mission of "carbon peak" and "carbon neutrality" in the future. Photovoltaic modules are usually packaged by connecting multiple battery slices to form battery strings through the main grid lines on them. At first, the battery strings were welded by hand, so the production efficiency was low. At present, automatic stringers are used instead of labor. The stringers have the following difficulties: if the preheating temperature of the cells is low, the welding time will be prolonged and the production efficiency of the cells will be reduced; if the preheating temperature is too high, the cells will warp easily. warped, or even damaged, reducing the yield. Based on this,...

AI Technical Summary

Problems solved by technology

At first, the battery strings were welded by hand, so the production efficiency was low

At present, automatic stringers are used instead of labor. The stringers have the following difficulties: if the preheating temperature of the cells is low, the welding time will be prolonged and the production efficiency of the cells will be reduced; if the preheating temperature is too high, the cells will warp easily. Warp, or even damage, reducing the yield

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