A PTC heater including: a PTC element heating part configured to generate heat; and a pair of heat dissipating plates disposed at two opposite sides of the PTC element heating part, respectively, so as to be in contact with the PTC element heating part and having a plurality of flow holes, in which the heat dissipating plates have heat dissipating fins each connected to one side of each of the flow holes and bent to a space between the heat dissipating plates.

A laundry appliance including a cabinet, a tub, and a drum. The tub is positioned inside the cabinet. The tub includes a front tub wall having a front tub opening, a rear tub wall, and a tub sidewall that extends between the front tub wall and the rear tub wall. The drum is rotatably supported within the tub. The drum includes a front drum opening, a rear drum wall, a drum sidewall that extends between the front drum opening and the rear drum wall, and a laundry compartment positioned inside the drum that is accessible through the front drum opening. An air gap is positioned radially between the tub sidewall and the drum sidewall. At least one heating element is positioned on or in the tub sidewall to heat the tub sidewall and therefore air flowing through the air gap.

An electric heating apparatus and a cooking device are disclosed. The electric heating apparatus includes a heating element, a mounting base, a temperature limiter and a first heat insulation member, where a middle part of the heating element is provided with a mounting position, the mounting base is disposed at the mounting position and has a mounting inner cavity, an upper side cover of the mounting base is provided with an upper cover body, the temperature limiter is fixedly connected to the upper cover body or the mounting base, the upper cover body is provided with an avoidance hole corresponding to the temperature limiter, the temperature limiter is partially positioned in the mounting inner cavity and partially extends above the upper cover body through the avoidance hole, and the first heat insulation member is disposed at the mounting position and positioned between the heating element and the upper cover body.

An electric heating apparatus and a cooking device are disclosed. The electric heating apparatus includes a heating element, a mounting base, a temperature limiter and a first heat insulation member, where a middle part of the heating element is provided with a mounting position, the mounting base is disposed at the mounting position and has a mounting inner cavity, an upper side cover of the mounting base is provided with an upper cover body, the temperature limiter is fixedly connected to the upper cover body or the mounting base, the upper cover body is provided with an avoidance hole corresponding to the temperature limiter, the temperature limiter is partially positioned in the mounting inner cavity and partially extends above the upper cover body through the avoidance hole, and the first heat insulation member is disposed at the mounting position and positioned between the heating element and the upper cover body.