Laser welding structure for connecting water passage element

Abstract

A laser welding structure for connecting a water passage element, including: a water passage soft tube; and a soft tube connector, wrapped around one end of said water passage soft tube. Inner surfaces of said soft tube connector and said water passage soft tube are each provided with a deep-color light absorption portion, outer perimeter of said soft tube connector is a laser transmission portion, such that connection portion of said soft tube connector and said water passage soft tube is performed laser fusion, welding, and connection under irradiation of laser lights. Also disclosed is a laser welding method, to realize connection of water passage element made of plastic such as PERT, and other water passage components. As such, it can solve a problem of the prior art of inferior welding strength, large deformation, poor tight seal connection.

Dependencies are inferred from the claim text.