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CN-224206169-U - Heating element and aerosol generating device

CN224206169UCN 224206169 UCN224206169 UCN 224206169UCN-224206169-U

Abstract

The application relates to the technical field of aerosol generation, in particular to a heating assembly and an aerosol generating device, wherein a heating cavity is arranged in the heating assembly and is used for accommodating and heating an aerosol generating product, the cross section outline of the heating cavity is elliptical, the ellipse is provided with a major axis and a minor axis, the dimension of the minor axis is smaller than the outer diameter of the aerosol generating product before being extruded, after the aerosol generating product is inserted into the heating cavity, at least part of cavity walls of the heating cavity can extrude the aerosol generating product, so that the aerosol generating product can deform inwards in the radial direction, the distance from the outer wall to the center of the part of the aerosol generating product is reduced, the heat transfer distance is shortened, the heat efficiency is improved, the power consumption is reduced, the temperature difference between the surface and the center of the aerosol generating product is reduced, the risk of smell generated by burning an external paper tube due to insufficient heating of the aerosol generating product with too low temperature is avoided, and the mouthfeel of the aerosol is improved.

Inventors

  • Request for anonymity

Assignees

  • 深圳市基克纳科技有限公司

Dates

Publication Date
20260508
Application Date
20250331

Claims (10)

  1. 1. A heating assembly, wherein a heating chamber is provided in the heating assembly, the heating chamber being adapted to receive and heat an aerosol-generating article, the heating chamber having an oval cross-sectional profile; The oval shape having a major axis and a minor axis, the minor axis being of a smaller dimension than the outer diameter of the aerosol-generating article prior to being compressed, at least a portion of the cavity walls of the heating cavity being capable of compressing the aerosol-generating article after insertion of the aerosol-generating article into the heating cavity.
  2. 2. A heating assembly according to claim 1, wherein the long axis has a dimension that is greater than the outer diameter of the aerosol-generating article prior to being extruded.
  3. 3. A heating assembly according to claim 1, wherein after insertion of the aerosol-generating article into the heating chamber, an air flow channel is formed between at least part of the chamber wall of the heating chamber and an outer wall of the aerosol-generating article, the air flow channel being in communication with the outside.
  4. 4. The heating assembly of claim 1, wherein the heating assembly comprises a heat-generating substrate having the heating cavity formed therein and a heat-generating body disposed on an outer wall of the heat-generating substrate.
  5. 5. The heating assembly of claim 4, wherein an insulating layer is disposed on an outer wall of the heating substrate, and at least a portion of the heating element is embedded in the insulating layer.
  6. 6. The heating assembly of claim 4, wherein the heater comprises a heat generating film, a heat generating filament, a heat generating mesh, a heat generating sheet, or a heat generating circuit.
  7. 7. The heating assembly of claim 4, wherein the heat-generating substrate is a hollow tube.
  8. 8. The heating assembly of claim 4, wherein the heat-generating substrate comprises a plurality of arcuate heat-generating cells arranged in an elliptical array to enclose the heating cavity between the plurality of heat-generating cells.
  9. 9. The heating assembly of claim 8, wherein a plurality of said heat generating units are disposed in spaced relation or in insulated relation to one another, each of said heat generating units being individually electrically connected to a power supply assembly for individually controlling the operation of said heat generating units.
  10. 10. An aerosol-generating device comprising a power supply assembly and a heating assembly according to any of claims 1-9, the power supply assembly being arranged to provide the power required for operation of the heating assembly.

Description

Heating element and aerosol generating device Technical Field The application relates to the technical field of aerosol generation, in particular to a heating component and an aerosol generation device. Background An aerosol-generating device is a device that uses the thermal effect of an electronic heating element to bake and heat an aerosol-generating article so that the aerosol-generating article can generate volatile substances such as aerosol without burning when heated. At present, a main heating mode of the aerosol generating device is a tubular circumferential heating mode, the heating component is in a hollow cylindrical structure, heat generated after the heating component is electrified is transferred from the circumference of the aerosol generating product to the center along the radial direction of the aerosol generating product, the circumference of the aerosol generating product is attached to the inner wall of the heating component after the aerosol generating product is inserted into the heating component, the distance of heat transfer from the circumference to the center is increased by the structure, so that the temperature difference of the aerosol generating product in the radial direction is larger, the heating efficiency is extremely easy to reduce, the power consumption is increased, and on the other hand, part of aerosol generating substrate is burnt due to the temperature difference. Disclosure of utility model The application provides a heating assembly and an aerosol generating device, which can shorten the heat transfer distance in an aerosol generating product, improve the heating efficiency and reduce the power consumption. The application provides a heating assembly, which is internally provided with a heating cavity, wherein the heating cavity is used for accommodating and heating an aerosol-generating product, and the cross-section profile of the heating cavity is elliptical; The oval shape having a major axis and a minor axis, the minor axis being of a smaller dimension than the outer diameter of the aerosol-generating article prior to being compressed, at least a portion of the cavity walls of the heating cavity being capable of compressing the aerosol-generating article after insertion of the aerosol-generating article into the heating cavity. In some alternative embodiments, the long axis has a dimension that is greater than an outer diameter of the aerosol-generating article prior to being extruded. In some alternative embodiments, after insertion of the aerosol-generating article into the heating chamber, an air flow channel is formed between at least part of a chamber wall of the heating chamber and an outer wall of the aerosol-generating article, the air flow channel being in communication with the outside. In some alternative embodiments, the heating assembly includes a heating substrate having the heating cavity formed therein and a heating body disposed on an outer wall of the heating substrate. In some optional embodiments, an insulation layer is disposed on an outer wall of the heating substrate, and at least part of the heating element is embedded in the insulation layer. In some alternative embodiments, the heating element comprises a heating film, a heating wire, a heating mesh, a heating sheet, or a heating wire. In some alternative embodiments, the heat generating substrate is a hollow tube. In some optional embodiments, the heating substrate includes a plurality of arc-shaped heating units, and the plurality of heating units are arranged in an elliptical array, so as to form the heating cavity by enclosing between the plurality of heating units. In some alternative embodiments, a plurality of the heat generating units are arranged at intervals or are connected with each other in an insulating mode, and each heat generating unit is separately and electrically connected with a power supply assembly so as to separately control the work of the heat generating unit. The application also provides an aerosol-generating device comprising a power supply assembly for providing the power required for operation of the heating assembly and a heating assembly as described above. According to the heating component and the aerosol-generating device in the embodiment, the cross-section profile of the heating cavity in the heating component is elliptical, the elliptical shape has a major axis and a minor axis, and the dimension of the minor axis is smaller than the outer diameter of the aerosol-generating product before being extruded, so that the aerosol-generating product is extruded and deformed by the cavity wall of the heating cavity after being inserted into the heating cavity, the distance from the outer wall to the center of a part of the aerosol-generating product is reduced, the heat transfer distance is shortened, the heat efficiency is improved, the power consumption is reduced, and the risk of odor generation caused by insufficient heating of the aerosol-gener