A heating device for volatizing materials contained in an impregnated pad has a housing including a chamber to receive an impregnated pad for heating, a battery contained in the housing, and a heater arrangement. The heater arrangement in one mode includes at least two heaters, a temperature sensor, and a controller, wherein the controller is configured to power the first heater based on a first temperature and then to power the second heater after the first temperature reaches a second temperature. In another mode, the heater arrangement has at least one heater, temperature sensor, and controller, wherein the controller is configured to provide battery power to the at least one heater to volatize materials in the impregnated pad. The housing has at least one opening to allow volatized materials from the impregnated pad to escape from the housing.

A traffic light with a housing, a light assembly mounted to the housing, a visor extending from the housing surrounding the light assembly. The traffic light further including a heater element having multiple layers.

A PTC liquid heating device comprises a housing extending along a longitudinal axis and defining a liquid inlet and a liquid outlet. A PTC heating unit is inserted into the housing and extends along the longitudinal axis. The PTC heating unit includes a sleeve, a heat conductor and at least one PTC heating core. The heat conductor has a pair of metal profiles defining at least one chamber, the at least one chamber extending along the longitudinal axis to receive the at least one PTC heating core. The heat conductor is located in the sleeve and has a shape matching the sleeve. The PTC liquid heating device provides uniform and efficient heat transfer. In addition, the PTC liquid heating device has improved corrosion resistance and insulation properties, thereby prolonging the service life of the PTC liquid heating device.

Systems and devices for angle of attack sensors are provided. Aspects include a vane, a faceplate, an annular region in the faceplate, and a thin film heater assembly attached to a surface of the annual region.

A heating component for insertion into and vaporization of an aerosol-forming medium includes: a shell, provided with a cavity; a heating medium filled in the cavity for heating in an alternating magnetic field; and a temperature control element accommodated in the cavity and for measuring a temperature. In an embodiment, the temperature control element is at least one of a positive temperature coefficient (PTC) element, a negative temperature coefficient (NTC) element, or a thermocouple.

A heater element includes: a honeycomb structure having an outer peripheral wall and partition walls disposed on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells each forming a flow path from a first end face to a second end face, the outer peripheral wall and the partition walls made of a material having a PTC property; and a pair of electrode layers provided on a surface of the outer peripheral wall. The honeycomb structure has a shape having a long axis and a short axis in a cross section orthogonal to a central axis.

A protective case of a intelligent cup warmer includes a shell, a control circuit board, a heating device a thermal conductive tray, and a touch sensing switch. The thermal conductive tray is disposed on an upper side of the shell. The shell includes an installation chamber for accommodating the heating device and the control circuit board. An upper surface of the thermal conductive tray is configured to heat cups, a bottom surface of the thermal conductive tray are connected the heating device. The touch sensing switch includes a touch sensing area disposed on the shell, integrated with the shell and formed with the shell in the same molding process. The induction element is disposed between the touch sensing area and the control circuit board, one end of the induction element is in connected to the touch sensing area, and the other end is electrically connected to the control circuit board.

A flexible resistor including a support made of electrically insulating material; at least one track made of an electrically conductive material incorporated in the support, and configured to be connected to an electric energy source; a foil made of electrically conductive material, having a surface fixed to a first face of the support, and a plurality of wings defined by foil portions cut and folded transversally to the surface.

A heating apparatus is disclosed. The heating apparatus comprises a PTC heating element, a first electrode, a second electrode, a first protection layer, a second protection layer, a first interlayer, and a second interlayer. A hardness of the first protection layer is greater than that of the first interlayer. A hardness of the second protection layer is greater than that of the second interlayer.

A forced air heater that includes a temperature sensing device, the temperature sensing device includes: a sensing plate mounted on a metallic component in the environment to be heated; and an electrical contact connected to the sensing plate, wherein the electrical contact is thermally coupled with the metallic component via the sensing plate. There is further provided a method of controlling a heater that includes a temperature sensing device that it is thermally connected to a solid component in the environment to be heated.