Induction Brazing Heating Conductor Configuration for Uniform Heat

The patent replaces the flame-based thermal system with an induction heating system that uses electromagnetic fields to generate heat directly in the workpiece through eddy currents. This substitution eliminates the need for open flames and associated safety restrictions, allowing brazing to be performed in locations previously inaccessible to flame brazing while maintaining the joining capability.

The patent changes the heating method from external flame heating to internal electromagnetic induction heating. By altering the fundamental heating parameter from external thermal radiation to internally generated eddy currents, the system achieves the same heating effect without the harmful factors associated with flame, thereby improving location flexibility.

The patent divides the heating conductor into multiple separate conductors positioned at different locations around the workpiece. This segmentation allows each conductor to target specific areas independently, enabling uniform heating around the entire circumference of the workpiece and overcoming the heating non-uniformity problem that occurs with a single conductor, especially when obstacles are present.

The patent applies different heating zones by positioning multiple conductors at specific locations (e.g., first heating conductor at one circumferential position, second heating conductor at another position). Each conductor provides localized heating tailored to its position, ensuring that heat is distributed uniformly around the workpiece while accommodating the presence of obstacles in specific areas.