Induction Welding Module With Feedback Temperature Control

The patent removes the susceptor from the final weld structure by using a consumable susceptor approach. The susceptor is extracted or consumed during the welding process itself, leaving no foreign material in the final joint. This is achieved by designing the susceptor to be consumed or removed as part of the welding process, solving the problem of susceptor contamination while maintaining heating efficiency.

The patent applies local quality by creating a concentrated magnetic field path through the susceptor material at the interface region. The susceptor is designed with specific magnetic properties that concentrate and guide the magnetic field lines locally at the joint interface, ensuring high field strength precisely where needed despite the coil's position away from the interface by substrate thickness.

The patent implements dynamics by making the induction coil positioning adjustable and movable rather than fixed. The coil can be repositioned along the substrate and adjusted to different distances from the interface based on substrate thickness and weld location requirements. This dynamic positioning capability allows the same apparatus to handle various substrate thicknesses and weld configurations without requiring multiple fixed coil assemblies.

The patent applies self-service by using the susceptor material itself as the temperature sensing element. The susceptor's electrical resistance, which naturally changes with temperature, serves as the temperature sensor. This eliminates the need for separate temperature sensing devices, as the susceptor monitors its own temperature through its inherent electrical properties, providing self-diagnosis and control capability.