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.

An embodiment discloses a heating rod comprising: a ceramic substrate; and a heat-radiating element that is arranged in the ceramic substrate, wherein the ratio of the thickness of the ceramic substrate to the thickness of the heat-radiating element is between 1:2 and 1:50. The embodiment discloses a heater comprising: a case; a heat-radiating module that is arranged inside the case; and a power module that is electrically connected to the heat-radiating module, wherein the power module includes a substrate part, a heat sink that is connected to the substrate part, and a ventilation part through which a fluid flows in and out to/from the heat sink.

An embodiment discloses a heating rod comprising: a ceramic substrate; and a heat-radiating element that is arranged in the ceramic substrate, wherein the ratio of the thickness of the ceramic substrate to the thickness of the heat-radiating element is between 1:2 and 1:50. The embodiment discloses a heater comprising: a case; a heat-radiating module that is arranged inside the case; and a power module that is electrically connected to the heat-radiating module, wherein the power module includes a substrate part, a heat sink that is connected to the substrate part, and a ventilation part through which a fluid flows in and out to/from the heat sink.

An electric heater for a vehicle includes a heat dissipation fin for heat-exchange with air, a ceramic element to emit heat by receiving a power-supply voltage, and a housing to support the heat dissipation fin and the ceramic element. The ceramic element includes a first positive temperature coefficient (PTC) element, and a second PTC element having a heating power greater than a heating power of the first PTC element.

A PTC heating device for introduction into a receiving pocket of an electric heating device includes at least one PTC element, a conductor track that is electrically connected to the PTC element, and insulating layers that are abutted in a thermally conductive manner against the PTC element. A frame-shaped casing joins the at least one PTC element, the conductor track, and the insulating layers as a unit. The frame-shaped casing has a leading frame member with elastic guide tabs which, in an initial assembly state, project on oppositely disposed sides of the frame-shaped casing over the heat-emitting open surface respectively associated with them, which are inclined obliquely from the leading frame member in a direction of the open surface, and which are elastically pivotable. During heating device assembly, the PTC heating device is centered and guided by the elastic guide tabs when introduced into a heating rib of a heating chamber.

A heating device (100) for a vehicle, includes a Printed Circuit Board (11), at least one heating element (20a,20b,20c), a bus bar (30,31) and a terminal pin (42). The Printed Circuit Board (11) is received inside a casing (12) along one bus bar (30,31). The bus bar (30,31) includes at least one bus bar terminal (30a,30b,30c,31a,31b,31c), wherein at least one bus bar terminal (30a 30b 30c 31a,31b,31c) connects a corresponding heating element (20a,20b,20c) to the Printed Circuit Board (11). The terminal pin (42) is integrally formed with at least one bus bar terminal (30a,30b,30c,31a,31b,31c) and is disposed outside the casing (12).

A heating core assembly (10) of an atomizer and an electronic cigarette comprising the same. The heating core assembly (10) of an atomizer comprises a heating tube (11) and a liquid guiding member (12) sleeved around an outer circumference of the heating tube (11). The outer circumference of the heating tube (11) is closely engaged with the liquid guiding member (12). The heating tube (11) is a conductive metal, and two ends of the heating tube (11) are both electrically conductive. Two ends of the heating core assembly (10) are respectively connected to positive and negative electrodes of a power supply by means of a pin (231) and a connecting rod (26). The pin (231) and the connecting rod (26) extend to an inner side of the heating tube (11) so as to supply electricity to the heating tube (11).

A device for treating exhaust gases which has an outer wall which has an opening in order to electrically contact one or more conductor tracks, which are arranged within an interior space that is surrounded by the outer wall, through the outer wall. The opening is arranged in a projection which protrudes outward from the interior space and is integrally formed with the outer wall.

A device for treating exhaust gases which has an outer wall which has an opening in order to electrically contact one or more conductor tracks, which are arranged within an interior space that is surrounded by the outer wall, through the outer wall. The opening is arranged in a projection which protrudes outward from the interior space and is integrally formed with the outer wall.

An electric heating device includes a housing encompassing a PTC element and strip conductors electrically connected to the PTC element for energizing the same with different polarity. The housing is integrally molded over the PTC element and strip conductors from a polymer ceramic. A method of manufacturing such an electric heating device also is disclosed.