Abstract: A ceramic heater having an enlarged windward area includes a conductive heat sink, at least one positive temperature coefficient (PTC) heating element, and an electrode plate. The conductive heat sink includes a cooling fin. The at least one PCT heating element is disposed on one side of the cooling fin. The electrode plate is disposed on the other side of the cooling fin. A conductive terminal protrudes from one end of the electrode plate. The conductive terminal includes a warped section and a flat section. A portion of the warped section and the flat section extend in a direction perpendicular to an extending direction of the electrode plate. Accordingly, heat dissipation is accelerated, a windward area is enlarged, and the effect of blowing out a hot airflow is enhanced, thereby avoiding a temperature rise of the conductive terminal.

Abstract: An electrical heating device with pluggable heating module includes a box body (10) and a heating module (20). The box body (10) has an accommodation space (14) for the liquid (74) contained therein, which is provided with a slot (111) communicating the accommodation space (14). The heating module (20) is received in the slot (111) in a pluggable way and separates the accommodation space into a first chamber (141) and a second chamber (142). The heating module (20) includes a positive temperature coefficient (PTC) heating component (21) and a heat conducting component (22) covering the outside of the PTC heating component (21). By this arrangement, the time for maintaining the electrical heating device (1) can be saved and the liquid (74) heating effect of the electrical heating device (1) can be improved as well.