Drum Induction Heating for Laundry Treatment with Coil Cooling

The heating function is extracted from the wash water environment and relocated to the drum structure. The drum itself becomes the heating element through embedded heating coils or induction heating plates, eliminating the need for separate electric heaters that are exposed to wash water and foreign substances.

The drum acts as an intermediary between the heating source and the laundry. Instead of directly heating wash water, the drum is heated first, and then heat is transferred to the laundry through contact and convection, achieving heating without contaminating the heating element.

The complex heat pump system is extracted and replaced with a simplified heating approach. The drum incorporates direct heating elements (coils or induction plates) that heat air through convection, eliminating the need for evaporators, condensers, expansion valves, and compressors while maintaining effective drying performance.

The mechanical heat pump system is replaced with a more straightforward electrical heating system integrated into the drum. This substitution reduces mechanical complexity while achieving the same air heating function for laundry drying.

Cooling channels are pre-designed and integrated into the drum structure around the heating coils or induction plates. These channels provide continuous cooling to prevent overheating, short circuits, and deformation before they occur, ensuring safe operation of the induction heating system.

A cooling fluid circulating through embedded channels acts as an intermediary heat sink. It absorbs excess heat from the induction heating elements, preventing temperature buildup that could cause coil damage while allowing efficient heat transfer to the laundry.