A ceramic honeycomb structure includes: an outer peripheral wall; and a partition wall disposed on an inner side of the outer peripheral wall, the partition wall defining a plurality of cells, each of the plurality of cells to form a fluid flow path extending from one end face to other end face. The honeycomb structure contains: 1) particles including one or more selected from silicon carbide, silicon nitride and aluminum nitride; and 2) silicon doped with a dopant. The dopant is a Group 13 element or a Group 15 element. The honeycomb structure has a silicon content (B) of from 20 to 80% by mass, and the honeycomb structure has a porosity of 30% or less.

A honeycomb structure 20 according to the present invention includes: a honeycomb structure portion 10 including: an outer peripheral wall 12; a partition wall 13 arranged on an inner side of the outer peripheral wall 12, the partition wall 13 defining a plurality of cells 16 each extending from one end face to other end face to form a flow path; and a pair of electrode layers 14a, 14b arranged on a surface of the outer peripheral wall 12 of the honeycomb structure portion 10, the pair of electrode layers 14 being provided so as to face each other across a central axis of the honeycomb structure portion 10. The honeycomb structure portion 10 is made of ceramics having an NTC property, and the pair of electrode layers are made of a material having a PTC property.

A heater (10) for heating a heat transfer medium, especially in a vehicle, with at least one heating element (14) built up with PTC material with a plurality of heat transfer medium flow ducts (30) passing through the heating element (14).

A ceramic heating element includes a heating body which is cylindrical and internally provided with a porous channel; and a heating circuit which is arranged on the heating body to heat air passing through the porous channel. The ceramic heating element of the embodiment of the present invention can increase the contact area between the heating body and the air to achieve sufficient heating of the air. The ceramic heating element not only has high heating efficiency and high thermal conductivity, and is energy saving and power saving, but also has good compactness, will not adsorb smoke particles and thus has no peculiar smell. A non-contact heat-not-burn heating device having the ceramic heating element is also disclosed.

An electrically heated support according to the present invention includes: a pillar shaped honeycomb structure, the honeycomb structure including an outer peripheral wall and a partition wall, the partition wall defining a plurality of cells, each of the cells penetrating from one end face to other end face to form a flow path; and a pair of electrode terminals provided on a surface of the outer peripheral wall. In a cross section of the honeycomb structure, the honeycomb structure includes: a plurality of first slits arranged, the first slits being configured to define an energizing path; and a least one second slit located in the energizing path, the second slit extending in a different direction from that of the first slits. A length of the energizing path from one electrode terminal to the other electrode terminal is longer than a diameter of the honeycomb structure.

A non-contact heat-not-burn heating device includes a ceramic heating element and a smoking product bearing assembly. The ceramic heating element includes a heating body and a heating circuit, the heating body is cylindrical and internally provided with a porous channel, and the heating circuit is arranged on the heating body to heat air passing through the porous channel. The smoking product bearing assembly includes a preheating tube and a blocking piece, the blocking piece is arranged in a cavity defined by the preheating tube to divide the cavity into a first cavity and a second cavity, the first cavity is used for placing the smoking product and preheating the smoking product, and the second cavity is used for placing at least one part of the ceramic heating element. At least one part of the ceramic heating element is arranged in the cavity defined by the preheating tube.

A non-contact heat-not-burn heating device includes a ceramic heating element, a smoking product bearing assembly and a cooling tube. The ceramic heating element includes a heating body and a heating circuit, the heating body is cylindrical and internally provided with a porous channel, and the heating circuit is arranged on the heating body to heat air passing through the porous channel. The smoking product bearing assembly includes a ceramic tube and a blocking piece, the blocking piece is arranged in a cavity defined by the ceramic tube to divide the cavity into a first cavity and a second cavity. The cooling tube is arranged above the ceramic tube and separated from the ceramic tube, the inner diameter of a cavity defined by the cooling tube is identical with that of the first cavity, so that a holder of the smoking product can pass suitably.

A heating control method and control device for a ceramic heating element in a non-contact heat not burn heating device is provided. The ceramic heating element includes a heating body and a heating circuit, the heating body is cylindrical and internally provided with a porous channel, the heating circuit is arranged on the heating body to heat air passing through the porous channel. The heating control method includes: controlling the heating circuit to perform heating work at a working voltage when the non-contact heat not burn heating device is started and keeping a working time of the heating circuit; detecting a working current of the heating circuit; and performing voltage reduction control on the working voltage of the heating circuit according to the working time of the heating circuit and the working current of the heating circuit.

The invention relates to a heating module comprising a resistive heating element placed in a frame. The heating module constitutes a ready heating subassembly for heating a gas or a liquid, in particular for heating the air. The heating element is mounted to the frame by means of the at least two contacts arranged at opposite side walls of the heating element, wherein each contact comprises at least two brackets releasably coupled to a side wall, and at least one resilient element connected to the brackets and to at least one catch releasably coupled to the frame, wherein each resilient element, arranged in contact with a side wall of the heat ing element, is tensioned and exerts an expanding force acting on the connection of the contact with the frame and the heating element.

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.