MUMBAI, India, Sept. 14 -- Intellectual Property India has published a patent application (202617067976 A) filed by Atop S. P. A. on May 30, 2026, for Welding Method For Contiguous Terminals Of Conductor Elements Of An Inductive Winding Of An Electrical Machine And Welding Station Therefor.
Inventors include Corbinelli, Rubino; and Nocciolini, Daniele.
The application for the patent was published on September 11, 2026, under issue no. 37/2026.
Abstract: A welding method for windings (B) of electrical machines comprising hairpin-type conductor elements (C) positioned within respective longitudinal slots (D) of a ferromagnetic core (E). The welding method comprises the following steps: arranging the ferromagnetic core (E) that contains the conductor elements (C) in a welding area; mutually welding the terminals (A) of the conductors (C) by means of the welding device (2) with a laser beam (2a), so as to hit a front (H) of the contiguous terminals (A) for a time interval suitable to melt an end portion of the material that constitutes the same, generating a welding blob (L). According to the invention, the step of arranging the core (E) provides for arranging the core with its longitudinal axis (F) oriented in a horizontal direction. Moreover, the method comprises a step of emitting a gas jet (3a) toward the fronts (H) of the terminals (A) along a substantially vertical and bottom-up direction.
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