Induction heating module and water purifier having the same

A water purifier, comprising:

• a case comprising a base that defines a bottom of the water purifier;
• a filter portion installed at an inside of the case;
• and
• an induction heating module configured to heat purified water having passed through the filter portion,
• wherein the induction heating module includes:
• a bracket mounted inside the case and disposed perpendicular to the base,
• a hot water tank coupled to one side of the bracket,
• a water inlet pipe disposed at a lower part of the hot water tank,
• a water outlet pipe disposed at an upper part of the hot water tank,
• a working coil that is disposed at one side of the hot water tank and that faces the hot water tank, the working coil comprising a conducting wire wound in an annular shape and being configured to generate magnetic field lines for induction heating of the hot water tank, and
• a spacer that is located between the working coil and the hot water tank, wherein the hot water tank includes:
• a first cover that faces the working coil and that has a flat shape,
• a second cover that is coupled to the first cover to thereby define an inner space for water flow in the hot water tank, the second cover having an edge coupled to an edge of the first cover and configured to maintain airtight sealing of the inner space of the hot water tank,
• a longitudinal protrusion portion that extends along a longitudinal direction corresponding to a top-down direction of the water flow in the inner space of the hot water tank, and
• a horizontal protrusion portion that extends along a horizontal direction crossing the longitudinal direction, and
• wherein an extension length of the longitudinal protrusion portion in the longitudinal direction is greater than an extension length of the horizontal protrusion portion in the horizontal direction.