Novel welding copper nozzle device

The utility model relates to the technical field of battery systems, in particular to a novel welding copper nozzle device which is provided with a laser channel in a penetrating mode, laser is emitted out along the laser channel so that an aluminum bar can be pressed and welded to a pole column, and a dust suction opening communicated with the outside is formed in the side wall of the laser channel. The laser channel is provided with a dust suction port, the dust suction port is used for sucking and removing impurities such as metal steam, molten liquid and smoke dust generated in the welding process, the other side wall, opposite to the dust suction port, of the laser channel is provided with an air flow channel communicated with the outside, and the dust suction port and the air flow channel are oppositely arranged. According to the novel welding copper nozzle device, the dust suction port and the air flow channel are oppositely arranged, so that air in the dust suction port and the air flow channel forms