Instantaneous water-heating dispensing device and heating module thereof

A water dispensing device for providing instantaneous heating, electrically connected to an external power source, comprising:

• a water tank;
• and
• at least one heating module, each of which includes:
• a body, including:
• a groove;
• an input terminal, positioned at one end of the groove;
• an output terminal, positioned at the other end of the groove;
• and
• a plurality of ribs, formed on the bottom face of the groove, wherein the height of protrusion of the ribs is smaller than the depth of the groove, two arms of each of the ribs are respectively connected to two side walls of the groove, and the arrangement density of the plurality of ribs decreases from the input terminal to the output terminal;
• and
• a heating plate, covering the opening of the groove and not in contact with the ribs, wherein the face of the heating plate facing away from the groove has a plurality of heating units, each of the heating units corresponds to a region between two of the neighboring ribs, and the heating units convert electrical power into heat for heating the water injected from the water tank;
• wherein when liquid flows through the region between two neighboring ribs and the heating plate, the liquid proximal to the heating plate is heated instantly and convective heat transfer is created therein, and a convection cell is created between the two neighboring ribs and the heating plate.

A body, comprising:

• a groove;
• an input terminal, positioned at one end of the groove;
• an output terminal, positioned at the other end of the groove;
• and
• a plurality of ribs, formed on the bottom face of the groove, wherein the height of protrusion of the ribs is smaller than the depth of the groove, two arms of each of the ribs are respectively connected to two side walls of the groove, and the arrangement density of the plurality of ribs decreases from the input terminal to the output terminal.