ELECTROMAGNETIC INDUCTION CONTINUOUS- FLOW WATER HEATER IN AN AUTOMATIC BEVERAGE PREPARATION MACHINE

摘要

The invention refers to an electromagnetic induction continuous-flow water heater, in particular for an automatic beverage vending machine; the heater comprises: a tubular body having a longitudinal axis and including at least one inlet, configured to receive water to be heated and to feed it, in use, into the tubular body, and an outlet, through which the heated water flows out of the tubular body; and an electrical winding wound around the tubular body and electrically powerable to generate an electromagnetic induction field; the tubular body is made of an electrically conductive material so that it is heated by electromagnetic induction due to the effect of said electromagnetic induction field; the heater further comprises an insert housed inside the tubular body and extending along the longitudinal axis; the tubular body and the insert delimit at least between an external surface of the insert and an internal surface of the tubular body, a helical flow channel for the water, which extends helically around the longitudinal axis.