CN-122004533-A - Aerosol generating device and infrared emitter

Abstract

The invention provides an aerosol-generating device and an infrared emitter, wherein the aerosol-generating device comprises a chamber for receiving a smokable material, the infrared emitter configured to radiate infrared light towards the chamber to heat the smokable material, the infrared emitter comprising a substrate extending axially of the chamber and at least partially surrounding or defining the chamber, a first infrared emitting layer and a second infrared emitting layer bonded to an outer side surface of the substrate in sequence along a circumferential direction of the chamber, the first infrared emitting layer and the second infrared emitting layer being configured to be independently activatable to radiate infrared light from an outer side of the chamber towards the chamber to heat different portions of the smokable material. The above aerosol-generating device, wherein the region of the smokable material receiving chamber which is circumferentially distinct may be independently heated by the first and second infrared emitting layers respectively, so that in use the smokable material may be progressively heated from part to whole.

Inventors

• LU LINHAI

Assignees

• 上海合元深蓝科技有限公司

Dates

Publication Date

20260512

Application Date

20200115

Claims (14)

1. 1. An aerosol-generating device for heating smokable material to generate an aerosol for inhalation, comprising: A chamber for receiving smokable material; an infrared emitter configured to radiate infrared light to the chamber to heat the smokable material, the infrared emitter comprising: a base extending axially of the chamber and at least partially surrounding or defining the chamber; And first and second infrared emitting layers arranged at intervals along the circumference of the substrate or bonded to the outer side surface of the substrate, the first and second infrared emitting layers being configured to be independently activatable so as to independently radiate infrared rays from the outer side of the chamber to heat different portions of smokable material.
2. 2. The aerosol-generating device of claim 1, wherein the first infrared emitting layer and the second infrared emitting layer are separate from each other.
3. 3. An aerosol-generating device according to claim 1 or 2, wherein the first infrared-emitting layer is a coating formed on the substrate or a film bonded to the substrate; And/or the second infrared emission layer is a coating formed on the substrate or a film bonded on the substrate.
4. 4. An aerosol-generating device according to claim 3, wherein the substrate is configured to be tubular extending in an axial direction of the chamber and surrounding the chamber; the first infrared emission layer is a film wound on the outer surface of the substrate, and/or the second infrared emission layer is a film wound on the outer surface of the substrate.
5. 5. An aerosol-generating device according to claim 1 or 2, wherein the first and second infrared-emitting layers do not completely cover the surface of the substrate, and a blank region is formed on the surface of the substrate between the first and second infrared-emitting layers in the circumferential direction of the substrate.
6. 6. An aerosol-generating device according to claim 1 or 2, wherein the infrared emitter further comprises a conductive element for powering the first and second infrared emitting layers.
7. 7. The aerosol-generating device of claim 6, wherein the conductive element is a conductive coating formed on the substrate.
8. 8. The aerosol-generating device of claim 7, wherein the conductive coating at least partially overlaps the first infrared emitting layer and the second infrared emitting layer, thereby forming a conductive connection with the first infrared emitting layer and the second infrared emitting layer.
9. 9. The aerosol-generating device of claim 6, wherein the conductive element is configured to extend in an axial direction of the chamber.
10. 10. The aerosol-generating device of claim 6, wherein the conductive elements comprise first, second, and third conductive elements spaced apart along a circumferential direction of the chamber; The first infrared emission layer is coupled between the first conductive element and the second conductive element to radiate infrared rays to the chamber when the first conductive element and the second conductive element are energized; The second infrared emission layer is coupled between the second conductive element and the third conductive element to radiate infrared rays to the chamber when the second conductive element and the third conductive element are energized.
11. 11. The aerosol-generating device according to claim 1 or 2, wherein the first and second infrared emitting layers are configured to be activated alternately.
12. 12. An aerosol-generating device according to claim 1 or claim 2, wherein the first and second infrared emissive layers are formed separately from different portions of the same infrared emissive layer.
13. 13. An aerosol-generating device for heating smokable material to generate an aerosol for inhalation, comprising: A chamber for receiving smokable material; an infrared emitter configured to radiate infrared light to the chamber to heat the smokable material, the infrared emitter comprising: a base extending in an axial direction of the chamber and at least partially surrounding or defining the chamber, the base including first and second ends opposite in the axial direction of the chamber; an infrared emission layer formed on or bonded to an outer side surface of the base, the infrared emission layer radiating infrared rays from an outer side of the base toward the chamber to heat the smokable material; the outer surface of the substrate is not completely covered by the infrared emission layer, the outer surface of the substrate is provided with blank areas which are not covered by the infrared emission layer at the first end and the second end, and the aerosol generating device is combined with the blank areas to fix and hold the infrared emitter.
14. 14. An infrared emitter for an aerosol-generating device, comprising a tubular substrate, and a first infrared emitting layer and a second infrared emitting layer arranged sequentially on an outer side surface of the substrate in a circumferential direction of the substrate, wherein the first and second infrared emitting regions are independently activatable to thereby independently radiate infrared light to heat different portions of smokable material.

Description

Aerosol generating device and infrared emitter Technical Field The embodiment of the invention relates to the technical field of heating non-combustion smoking sets, in particular to an aerosol generating device and an infrared emitter. Background Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release the compounds without burning. An example of such a product is a heating device that releases a compound by heating rather than burning a material. For example, the material may be tobacco or other non-tobacco products that may or may not contain nicotine. As another example, there are infrared heating devices that heat a tobacco product by means of infrared radiation to release a compound to produce an aerosol. As a heating device structure of the prior art 201821350103.0, a heating device structure is proposed in which a nano far infrared coating and a conductive coating are sequentially formed on the outer surface of a quartz tube, and after the conductive coating is connected with a power supply for supplying power, the nano far infrared coating generates heat by itself in power supply, forms electronic transition to generate far infrared while generating heat, and irradiates to tobacco products in the quartz tube to heat the tobacco products. In use, the above known device has an infrared-emitting coating that completely surrounds the area of the tobacco product to be heated, so that the volatile substances of the tobacco product are released too quickly. Disclosure of Invention In order to solve the problem of the prior art heating device releasing volatile substances from tobacco products too quickly, embodiments of the present invention provide an aerosol generating device that can be heated step by step. Based on the above, an aerosol-generating device of the present invention for heating smokable material to generate aerosol for inhalation, comprising: A chamber for receiving smokable material; an infrared emitter configured to radiate infrared light to the chamber to heat the smokable material; the infrared emitter comprises at least one first infrared emission region and at least one second infrared emission region arranged in sequence along a circumferential direction of the chamber, the first and second infrared emission regions being configured to be independently activatable so as to independently radiate infrared radiation to the chamber to heat different portions of smokable material. In a more preferred embodiment, the at least one first infrared emission region and the at least one second infrared emission region may be sequentially controlled, in particular alternatively activated or simultaneously activated, so as to be able to radiate infrared radiation to heat different parts of the smokable material independently of each other. And in practice the different infrared emission areas, e.g. the first and second infrared emission areas, may be each formed by two coatings or films bonded to the substrate in the circumferential direction, or by two portions of one coating or film formed on the substrate in the circumferential direction. In a more preferred implementation, the first infrared emission region and the second infrared emission region are separate from each other. In a more preferred implementation, the infrared emitter comprises: a base extending in an axial direction of the chamber; A first infrared emission layer and a second infrared emission layer which are sequentially combined on the surface of the substrate along the circumferential direction of the cavity; at least a portion of the first infrared emission layer forms the first infrared emission region and at least a portion of the second infrared emission coating forms the second infrared emission region. In a more preferred embodiment, the substrate comprises a first surface adjacent to the chamber and a second surface facing away from the chamber; The first infrared emission layer and the second infrared emission layer are both positioned on the first surface or the second surface of the substrate. In a more preferred embodiment, the first infrared emission layer is a coating formed on the substrate or a film bonded to the substrate; And/or the second infrared emission layer is a coating formed on the substrate or a film bonded on the substrate. In a more preferred embodiment, the base is configured as a tube extending in the axial direction of the chamber and surrounding the chamber; the first infrared emission layer is a film wound on the outer surface of the substrate, and/or the second infrared emission layer is a film wound on the outer surface of the substrate. In a more preferred implementation, the first and second infrared emission layers do not completely cover the surface of the substrate, and a blank area is formed on the surface of the substrate between the first and