CN220545836U - Atomizer, power supply assembly and aerosol generating device - Google Patents

Abstract

The application discloses a nebulizer, a power supply assembly and an aerosol-generating device, the nebulizer comprising a liquid storage chamber for storing a liquid matrix; a metal tube, at least a portion of the inner cavity of the metal tube being configured as a receiving cavity for receiving a solid aerosol-generating article; the atomizing cavity is longitudinally distributed with the receiving cavity, and the liquid matrix forms aerosol in the atomizing cavity; a heating body disposed adjacent to the metal pipe or in contact with at least a portion of the metal pipe such that heat generated by the heating body can be transferred to the metal pipe; wherein the metal tube is used for heating the aerosol-generating article, and the heater or the metal tube is used for heating the liquid matrix.

Description

Atomizer, power supply assembly and aerosol generating device

Technical Field

The embodiment of the application relates to the field of aerosol generating devices, in particular to an atomizer, a power supply assembly and an aerosol generating device.

Background

The aerosol-generating device comprises a mixing smoking article, and the prior atomizer and power supply assembly of the mixing smoking article are mostly arranged in a shell, so that the liquid matrix is supplied by replacing the liquid cartridge. At least two heaters are arranged in the smoking set, one heater is used for heating the liquid matrix to generate first aerosol, the other heater is used for heating the solid smoke to generate second aerosol, and the structure of the plurality of heaters makes the internal structure of the mixing smoking set complex and the overall power consumption of the mixing smoking set larger.

Disclosure of Invention

In order to solve the problem of complex structure of a hybrid aerosol generating device in the prior art, an embodiment of the present application provides an atomizer, including:

a liquid storage chamber for storing a liquid matrix;

a metal tube, at least a portion of the inner cavity of the metal tube being configured as a receiving cavity for receiving a solid aerosol-generating article;

the atomizing cavity is longitudinally distributed with the receiving cavity, and the liquid matrix forms aerosol in the atomizing cavity;

a heating body disposed adjacent to the metal pipe or in contact with at least a portion of the metal pipe such that heat generated by the heating body can be transferred to the metal pipe;

wherein the metal tube is used for heating the aerosol-generating article, and the heater or the metal tube is used for heating the liquid matrix.

In the atomizer, the heating body is arranged close to the metal tube or is in contact with at least one part of the metal tube so as to transfer the heat of the heating body to the metal tube, the aerosol generating product is heated through the metal tube, the liquid substrate is heated by the heating body or is heated by the metal tube, and the heating body and the heating tube are intensively arranged, so that the structure of the heater inside the atomizer is simpler, the integral replacement of the atomizer is facilitated, and the use cost of the hybrid aerosol generating device is reduced; furthermore, the atomizer with the structure only needs to supply power to the heating body, so that the overall power consumption of the atomizer is reduced.

In some embodiments, at least a portion of the heater extends into the lumen of the metal tube.

In some embodiments, the metal tube comprises a first section of metal tube and a second section of metal tube longitudinally distributed, the receiving cavity is disposed within the first section of metal tube, and the atomizing cavity is disposed within the second section of metal tube.

In some embodiments, the heater comprises a first heating element for heating the liquid matrix and a second heating element in contact with the metal tube for heating the aerosol-generating article, wherein the heating power of the first heating element is less than the heating power of the second heating element.

In some embodiments, the heater comprises a liquid guiding element for absorbing and storing a portion of the liquid matrix, and the first heating element is coupled to the liquid guiding element.

In some embodiments, the second length of metal tube is provided with a liquid-guiding hole for the liquid matrix inside the liquid storage cavity to flow to the first heating element.

In some embodiments, at least a portion of the reservoir is disposed around the metal tube.

In some embodiments, an insulating structure is also included, the insulating structure disposed between the reservoir and the receiving cavity.

In some embodiments, the metal tube is configured to be capable of sensing a varying magnetic field to thereby heat the aerosol-generating article.

In some embodiments, a first electrode is further disposed at one end of the atomizer, and the first electrode is used for connecting the heating element and the power supply assembly.

The embodiment of the application still provides a power supply module for use with the atomizer, power supply module with the atomizer can dismantle the connection, the atomizer includes above-mentioned atomizer.

In some embodiments, the power supply assembly further comprises a second electrode for contact conduction with the first electrode on the atomizer.

In some embodiments, the power assembly includes an open receiving cavity configured to receive and retain at least a portion of the atomizer, the power assembly further including an induction coil configured to be disposed about the receiving cavity.

The embodiment of the application also provides an aerosol generating device, which comprises a detachably connected atomizer and a power supply assembly, wherein the power supply assembly provides electric drive for the atomizer, and the atomizer is the atomizer.

In some embodiments, the atomizer is separated from the power supply assembly in a first direction and the aerosol-generating article is removed from within the atomizer in a second direction, the first and second directions being substantially the same.

Embodiments of the present application also provide an aerosol-generating device comprising a detachably connected atomizer and a power supply assembly, at least a portion of the atomizer being receivable within a receiving cavity of the power supply assembly;

the atomizer comprises a metal tube having at least a portion of an interior cavity for containing a solid aerosol-generating article;

the atomizer further comprises a liquid storage cavity for storing a liquid matrix, wherein the liquid matrix in the liquid storage cavity can flow into the metal tube;

wherein the power supply assembly comprises an induction coil that generates a varying magnetic field for driving the metal tube to generate heat to atomize the liquid matrix and the aerosol-generating article.

In some embodiments, the induction coil includes a first portion and a second portion that are longitudinally distributed, wherein the first portion is capable of producing a magnetic induction greater than the second portion is capable of producing.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic view of a nebulizer according to one embodiment of the utility model;

fig. 2 is a schematic illustration of the structure of a nebulizer, power supply assembly, aerosol-generating article after separation according to one embodiment of the utility model;

FIG. 3 is a schematic view of a nebulizer and power supply assembly according to yet another embodiment of the utility model;

fig. 4 is a schematic structural view of an aerosol-generating device according to a further embodiment of the present application;

FIG. 5 is a schematic view of a nebulizer and power supply assembly according to another embodiment of the utility model;

fig. 6 is a schematic structural view of an aerosol-generating device according to another embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, the present application will be described in more detail below with reference to the accompanying drawings and detailed description.

It should be noted that, in this embodiment of the present application, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship, movement situation, etc. between the components in a specific posture (as shown in the drawings), if the specific posture changes, the directional indicators also change accordingly, where "connection" may be a direct connection or an indirect connection, and "setting", "setting" may be a direct setting or an indirect setting.

Furthermore, the descriptions herein as pertaining to "first," "second," etc. are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

One embodiment of the present application provides an aerosol-generating device comprising a hybrid nebulizer 100 and a power supply assembly 200, wherein the power supply assembly 200 provides an electrical drive for the nebulizer 100, the nebulizer 100 being configured for generating a hybrid aerosol.

The power supply assembly 200 mainly includes a battery and a control module, and the structural form of the power supply assembly 200 may be configured in any form in the prior art, which is not described in detail in the present application.

In a preferred embodiment, the atomizer 100 and the power supply assembly 200 are configured as a detachable connection, and the detachable connection between the two components includes a magnetic attraction connection or a snap connection. In such a detachable aerosol-generating device, by optimizing the internal structure of the atomizer 100 to miniaturize it, the volume of the entire aerosol-generating device can be optimized, making the device as a whole more portable. Further, the nebulizer 100, as a core component of the aerosol-generating device, facilitates reducing the cost of use of the device as a whole by being configured as a detachable component.

An embodiment of the present application provides a structure of a hybrid atomizer 100 that is convenient to replace, referring to fig. 1 and 2, the atomizer 100 includes a housing 10, a portion of an inner cavity of the housing 10 is configured as a liquid storage cavity 11, the liquid storage cavity 11 is used for storing a liquid matrix, a main component of the liquid matrix is one or more of a solvent, an atomization aid, an essence, a perfume, a nicotine preparation and a flavor component, a boiling point of the liquid matrix is generally 100 ℃ to 200 ℃, and the liquid matrix is atomized by a heater inside the hybrid atomizer 100 to generate a first aerosol.

A further portion of the interior cavity of the housing 10 is configured as a receiving cavity 110 for receiving a solid aerosol-generating article 300, wherein the solid aerosol-generating article 300 comprises a cigarette generally configured to resemble a conventional cigarette in shape and configuration, the solid aerosol-generating article 300 having a heating temperature of typically 200 ℃ to 300 ℃, the cigarette being heated by a heater internal to the atomizer 100 to generate a second aerosol.

The housing of the atomizer 100 may be formed by combining several sub-housings, and referring to fig. 1, the housing 10 includes a liquid storage jacket 13 and a bottom cover 14 provided at an open end of the liquid storage jacket 13. A magnetic shield and an air inlet may be further provided on the bottom cover 14.

An insertion port 111 is provided in the housing 10, the insertion port 111 communicates with the receiving chamber 110 in the longitudinal direction, and cigarettes are inserted into the receiving chamber 110 through the insertion port 111 or removed out of the receiving chamber 110 through the insertion port 111. It should be noted that, when the connection relationship between the atomizer 100 and the power supply assembly 200 is configured as a detachable connection, and when the consumption of the liquid substrate stored in the atomizer 100 is completed, a new atomizer 100 can be replaced for use in combination with the power supply assembly 200 to replenish the liquid substrate. It will be appreciated that the cigarettes are more readily consumable than the liquid matrix, and thus the volume of liquid matrix stored within one atomizer 100 can be used with multiple cigarettes.

In a preferred embodiment, referring to fig. 2, the connection relationship between the atomizer 100 and the power supply assembly 200 is configured as an up-down connection structure, the atomizer 100 includes longitudinally opposite first and second ends, wherein the insertion opening 111 of the cigarette is provided at the first end, and the second end of the atomizer 100 is configured as the connection end of the power supply assembly 200, so that the insertion and removal directions of the cigarette are substantially the same as the separation direction of the atomizer 100 and the power supply assembly 200, thereby simplifying the operation and use method of the user.

With continued reference to fig. 1, in one example, the reservoir 11 is configured to be disposed at least partially around the receiving chamber 110, and the reservoir 11 and the receiving chamber 110 are configured to be disposed in a surrounding configuration, relative to the prior art in which the reservoir 11 is disposed laterally apart from the receiving chamber 110, to facilitate centralized placement of the heating elements within the atomizer 100, and thereby optimize the internal structure of the atomizer 100.

When the housing 10 is made of a transparent material, the use of the liquid matrix inside the liquid storage chamber 11 is visible. The length of the liquid storage cavity 11 extending along the longitudinal direction thereof can be expanded according to the volume of the liquid matrix to be stored in the liquid storage cavity 11, the top end of the liquid storage cavity 11 can be extended to be approximately flush with the insertion opening 111 of the receiving cavity 110, and the bottom end of the liquid storage cavity 11 is closer to the connection end of the hybrid atomizer 100 than the bottom end of the receiving cavity 110.

The core component of the atomizer 100 is a heater, which in one embodiment of the present application comprises a metal tube 20, the metal tube 20 having a hollow interior cavity, at least a portion of the interior cavity of the metal tube 20 being configured to receive the cavity 110 for containing the solid aerosol-generating article 300.

The interior of the atomizer 100 is further provided with an atomizing chamber 32, in which the liquid matrix is atomized to form an aerosol. In a preferred embodiment, the atomizing chamber 32 is disposed longitudinally along the receiving chamber 110, in other words, the atomizing chamber 32 is disposed in parallel with the receiving chamber 110 and is in communication with the longitudinal direction of the housing 10, so that the first aerosol generated in the atomizing chamber 32 can directly enter the receiving chamber 110 to be mixed with the second aerosol formed by heating the cigarettes to form the mixed smoke with better taste.

The metal tube 20 is configured to generate heat, for example, the metal tube 20 is configured as a resistive heating tube that generates heat when energized to heat a cigarette therein.

In some embodiments, the metal tube 20 is configured as a heat good conductor, and a heating body 30 is further provided inside the atomizer 100, the heating body 30 being provided near the metal tube 20 or the heating body 30 being in contact with at least a portion of the metal tube 20, so that heat generated by the heating body 30 can be transferred to the metal tube 20. The metal tube 20 absorbing heat of the heating body 30 thereby heats the cigarettes inside thereof.

The heating manner of the liquid substrate varies depending on the specific position where the heating element 30 is provided. When a portion of the heat-generating body 30 is disposed within the atomizing chamber 32, the liquid matrix is heated by the heat-generating body to form a first type of aerosol. When the heating body 30 is located outside the atomizing chamber 32, the atomizing chamber 32 is disposed in the inner cavity of the metal tube 20, and heats the liquid matrix by means of the heat of the metal tube 20.

To further optimize the overall structure of the atomizer 100, at least a portion of the heat generating body 30 extends into the inner cavity of the metal tube, and as shown in fig. 1, when the heat generating body 30 is disposed in the inner cavity of the metal tube 20, the heat generated by the heat generating body 30 can be uniformly transferred to the inner wall of the metal tube 20 by heat radiation or heat conduction.

In alternative other examples, the metal tube 20 is configured as a susceptor, and an induction coil is disposed around the periphery of the metal tube 20, and the induction coil generates a varying magnetic field so that the metal tube 20 generates heat to heat the cigarettes inside.

In some examples, heat-generating body 30 includes a porous liquid conductor and a heating element at least partially coupled to the porous liquid conductor, the porous liquid conductor being made of a porous material including a microporous ceramic, a microporous glass, or a foam metal. The heating element is a metal material, metal alloy, graphite, carbon, conductive ceramic or other ceramic material and metal material composite that may be suitably resistant. Suitable metals or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nichrome, nickel-iron alloys, ferrochrome alloys, titanium alloys, iron-manganese-aluminum based alloys, or stainless steel, among others. A part of the heating elements are configured as printed resistance heating tracks and are printed on a part of the outer surface of the porous liquid guide, or a part of the heating elements are configured as tubular heating nets or spiral heating wires or heating sheets with grid structures and are embedded on the outer surface of the porous liquid guide.

In alternative examples, heat-generating body 30 includes a liquid-conducting element that is made of fiber wool and a heating element that is at least partially bonded to the liquid-conducting element, the heating element being made of a metal material that may be of suitable resistance, a metal alloy, graphite, carbon, a conductive ceramic, or a composite of other ceramic materials and metal materials. Suitable metals or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nichrome, nickel-iron alloys, ferrochrome alloys, titanium alloys, iron-manganese-aluminum based alloys, or stainless steel, among others. A portion of the heating element is configured such that a spiral heating wire is wound around the fiber cotton or a tubular heating mesh is provided on the outer surface of the fiber cotton.

As shown in fig. 1, the heating element 30 includes a heating wire extending spirally, and a part of the heating wire may be fixed in an inner hole of the porous liquid guide body, or a part of the heating wire may be fixed on the outer periphery of the cellucotton.

In one embodiment provided herein, referring to fig. 1 and 2, the metal tube 20 is divided into two sections along its longitudinal direction, a first section of metal tube 21 and a second section of metal tube 22, respectively, with a portion of the inner cavity of the first section of metal tube 21 configured as the receiving cavity 110 and a portion of the inner cavity of the second section of metal tube 22 configured as the atomizing cavity 32. It should be noted that the first section of metal tube 21 and the second section of metal tube 22 may be integrally formed, or may be configured as two connected components.

A liquid guide hole 23 is provided in the outer wall of the second length of metal tube 22, through which liquid medium can enter the atomizing chamber 32.

In some embodiments, a liquid guiding element is further disposed inside the second section of metal tube 22, where the liquid guiding element includes a capillary component with liquid guiding and liquid storing capabilities, such as fiber cotton, sponge or porous ceramic, and the liquid matrix can be stored in the liquid guiding element after entering through the liquid guiding hole 23. It should be noted that the liquid guiding element may also function as a seal to prevent leakage of the liquid matrix from one end of the metal tube 22.

A communication port 24 is further provided between the first section metal tube 21 and the second section metal tube 22, the inside diameter of the communication port 24 is smaller than the inside diameter of the first section metal tube 21 and the inside diameter of the second section metal tube 22, and the first type aerosol can enter the inner cavity of the first section metal tube 21 through the communication port 24 and be mixed with the second type aerosol generated by heating the cigarettes to generate mixed aerosol. Further, the first type of aerosol may also carry a portion of the heat and enter the interior of the receiving cavity 110 through the communication port 24, thereby heating the cigarette.

Since the liquid matrix typically requires a heating temperature of 100 c to 200 c and the solid cigarette typically requires a heating temperature of 200 c to 300 c, the heating temperature required inside the receiving chamber 110 is greater than the heating temperature required inside the atomizing chamber 32, and in some embodiments, to facilitate sufficient heating of the solid cigarette, the heater comprises a first heating element and a second heating element, the heating power of the first heating element being less than the heating power of the second heating element, the heat generated by the first heating element being used to heat the liquid matrix and the heat generated by the second heating element being used to transfer to the metal tube to heat the cigarette.

As one example, the heating element may be configured as a resistive heating filament comprising two parts connected, wherein a first part of the resistive heating filament is fixed on the liquid guiding element and is used for heating the liquid matrix, and a second part of the resistive heating filament is configured to be in contact with the first section of metal tube. Wherein the resistance heating wire of the first portion is parallelable with the resistance heating wire of the second portion, and the resistance of the resistance heating wire of the second portion is configured to be smaller than the resistance of the resistance heating wire of the first portion.

In other alternative examples, the heating element comprises two parts connected, wherein the first part is configured as a resistive heating wire and the second part is configured as a resistive heating sheet, the resistive heating wire being arranged inside the nebulizing chamber and being used for heating the liquid matrix, the resistive heating sheet being in contact with the metal tube and the heat generated being transferred to the first length of metal tube.

Due to the relatively high temperature inside the receiving chamber 110, in order to reduce the dissipation of heat inside the receiving chamber 110 into the liquid storage chamber 11, which results in heating of the liquid matrix inside the liquid storage chamber 11, a heat insulation structure is further provided between the liquid storage chamber 11 and the receiving chamber 110, which may be a vacuum heat insulation layer, or an air medium layer, or a heat insulation gel, or a heat insulation coating, or a heat insulation wall, arranged around the first section of metal tube 21.

An electrical connection structure for connecting the heating element 30 and the battery inside the power supply assembly 200 is also provided between the atomizer 100 and the power supply assembly 200. Referring to fig. 1, the connection end of the atomizer 100 is provided with a first electrical connector 40, and the coupling end of the power supply assembly 200 is provided with a second electrical connector 41, and when the atomizer 100 and the power supply assembly 200 are connected, the first electrical connector 40 and the second electrical connector 41 are in contact conduction. Wherein, the first electrical connector 40 and the second electrical connector 41 may comprise at least one of an electrode column, a conductive spring plate, and a threaded electrode. As shown in fig. 1, the first electrical connector 40 is configured as two electrode posts, and two conductive pins of the heating wire are respectively connected to the two electrode posts.

Referring to fig. 3 to 4, in still another embodiment of the present application, the heater includes an induction coil 50 in addition to the heat generating body 30 and the metal pipe 20 in the above-described embodiment. A part of heat of the metal tube 20 is transferred through the heating body 30, and the metal tube 20 can generate a part of heat by sensing electromagnetic change of the induction coil 50, so that the metal tube can generate more heat to heat the cigarettes by adding the electromagnetic induction coil 50.

To facilitate a stable connection between the nebulizer 100 and the power supply assembly 200, a portion of the internal cavity of the power supply assembly 200 is configured as a receiving cavity 210, the receiving cavity 210 being provided open, through which at least a portion of the nebulizer 100 may be inserted and held inside the receiving cavity 210.

In some alternative embodiments, the induction coil 50 is disposed inside the power supply assembly 200, and the power supply assembly 200 serves as a sustainable component in the aerosol-generating device, and the disposition of the induction coil 50 in the power supply assembly 200 facilitates miniaturization of the overall structure of the atomizer 100 to facilitate replacement thereof, while reducing replacement costs of the atomizer 100. When the atomizer 100 is accommodated in the accommodating cavity 210, the induction coil 50 is disposed around the metal tube 20, so that the induction coil 50 generates a varying magnetic field to drive the metal tube 20 to generate heat to heat the cigarettes to generate the second aerosol, and the liquid matrix in the liquid storage cavity 11 is mainly atomized by the heating element 30 to generate the first aerosol.

Referring to fig. 4, the receiving chamber of the power supply assembly 200 is configured to fully receive the hybrid atomizer 100, the smoke generating segment of the cigarette is inserted into the interior of the receiving chamber 110 of the hybrid atomizer 100, and the suction segment and the cooling segment of the cigarette are located outside the receiving chamber 110 and exposed to the exterior of the power supply assembly 200.

In yet another embodiment provided herein, the heater is configured as an electromagnetic induction heater, and as shown with reference to fig. 5 and 6, the sensing portion of the electromagnetic induction heater is configured as a metal tube 20, the metal tube 20 being disposed within the atomizer 100, the metal tube 20 comprising a first length of metal tube 21 and a second length of metal tube 22, wherein an inner cavity of the first length of metal tube 21 defines a receiving cavity 110, the receiving cavity 110 being configured to removably receive a cigarette, the first length of metal tube 21 being penetrated by a varying magnetic field generated by the induction coil 50 to generate heat, the heat being configured to heat the cigarette to generate a second aerosol.

The inner cavity of the second section metal tube 22 is used for placing the liquid storage element 31, the liquid storage element 31 is made of fiber cotton material or sponge material, a liquid matrix is stored in the liquid storage element 31, the liquid matrix stored in the liquid storage cavity 11 can flow to the liquid storage element 31 through the liquid guide hole 23 on the second section metal tube 22 and is stored in the liquid storage element 31, the second section metal tube 22 is penetrated by a changing magnetic field generated by the induction coil 50 to generate heat, and the heat is used for heating the liquid matrix to generate first aerosol. The first aerosol enters the inside of the cigarette through a communication port 24 provided between the first length of metal tube 21 and the second length of metal tube 22 and is mixed with the second aerosol produced by the cigarette.

The induction coil 50 of the electromagnetic induction heater is disposed in the power supply assembly 200, the induction coil 50 is disposed around the accommodating chamber, and the atomizer 100 can be completely accommodated inside the accommodating chamber 210, so that the metal tube 20 inside the atomizer 100 is surrounded by the induction coil 50. Because the induction coil 50 is located in the power supply assembly 200 and the sensing element is located in the atomizer 100, no electrode component is required to be arranged on the atomizer 100, the internal structure of the atomizer 100 can be further optimized and simplified, so that the atomizer 100 is simpler in structure and the replacement cost is reduced.

Since the other heating body 30 is not provided inside the atomizer 100, there is no need to provide an electrical connection structure between the atomizer 100 and the power supply assembly 200, thereby further simplifying the internal structure of the atomizer 100 and reducing the replacement cost thereof.

The induction coil 50 comprises two parts, wherein the induction coil of the first part is arranged around the receiving cavity 110 for providing a varying magnetic field to the first length of metal tube 21, the induction coil of the second part is arranged around the second length of metal tube 22 for providing a varying magnetic field to the second length of metal tube 22, and the magnetic induction strength that can be generated by the induction coil of the first part is larger than the magnetic induction strength that can be generated by the induction coil of the second part, e.g. the winding density of the induction coil of the first part is larger than the winding density of the induction coil of the second part. Wherein the first partial induction coil and the second partial induction coil can be integrated and can be controlled together to generate a magnetic field; the second partial induction coil and the second partial induction coil can be separated and can be independently controlled to generate magnetic fields together or separately.

It should be noted that the description and drawings of the present application show preferred embodiments of the present application, but are not limited to the embodiments described in the present application, and further, those skilled in the art can make modifications or changes according to the above description, and all such modifications and changes should fall within the scope of the appended claims.

Claims (17)

1. An atomizer, comprising:

a liquid storage chamber for storing a liquid matrix;

a metal tube, at least a portion of the inner cavity of the metal tube being configured as a receiving cavity for receiving a solid aerosol-generating article;

the atomizing cavity is longitudinally distributed with the receiving cavity, and the liquid matrix forms aerosol in the atomizing cavity;

a heating body disposed adjacent to the metal pipe or in contact with at least a portion of the metal pipe such that heat generated by the heating body can be transferred to the metal pipe;

wherein the metal tube is used for heating the aerosol-generating article, and the heater or the metal tube is used for heating the liquid matrix.

2. The atomizer of claim 1 wherein at least a portion of said heat generating body extends into an interior cavity of said metal tube.

3. The atomizer of claim 1 or 2, wherein said metal tube comprises a first length of metal tube and a second length of metal tube longitudinally distributed, said receiving cavity being disposed within said first length of metal tube, said atomizing cavity being disposed within said second length of metal tube.

4. The atomizer of claim 1, wherein said heat generating body comprises a first heating element for heating a liquid substrate and a second heating element in contact with said metal tube for heating said aerosol-generating article, wherein the heating power of said first heating element is less than the heating power of said second heating element.

5. The atomizer of claim 4 further comprising a liquid guiding element for absorbing and storing a portion of said liquid matrix, said first heating element being coupled to said liquid guiding element.

6. A nebulizer as claimed in claim 3, wherein the second length of metal tube is provided with a liquid guiding aperture, the nebulizer comprising a first heating element for heating a liquid matrix, the liquid guiding aperture being for the liquid matrix inside the liquid reservoir to flow to the first heating element.

7. The nebulizer of claim 1, wherein at least a portion of the reservoir is disposed around the metal tube.

8. The nebulizer of claim 7, further comprising an insulating structure disposed between the reservoir and the receiving chamber.

9. The nebulizer of claim 1, wherein the metal tube is configured to be capable of sensing a varying magnetic field to thereby heat the aerosol-generating article.

10. The atomizer of claim 1 wherein one end of said atomizer is further provided with a first electrode for connecting said heat generating body and a power supply assembly.

11. A power supply assembly for use with a nebulizer, wherein the power supply assembly is detachably connected to the nebulizer, the nebulizer comprising a nebulizer according to any one of claims 1 to 10.

12. The power assembly of claim 11, further comprising a second electrode for contact conduction with the first electrode on the atomizer.

13. The power assembly of claim 11, wherein the power assembly includes an open receiving cavity configured to receive and retain at least a portion of the atomizer, the power assembly further comprising an induction coil configured to be disposed about the receiving cavity.

14. An aerosol-generating device comprising a detachably connected atomizer and a power supply assembly, the power supply assembly providing electrical drive to the atomizer, the atomizer comprising the atomizer of any one of claims 1 to 10.

15. An aerosol-generating device according to claim 14, wherein the atomizer is separate from the power supply assembly in a first direction, and aerosol-generating article is removed from within the atomizer in a second direction, the first and second directions being substantially the same.

16. An aerosol-generating device comprising a detachably connected atomizer and a power supply assembly, at least a portion of the atomizer being receivable within a receiving cavity of the power supply assembly;

the atomizer comprises a metal tube having at least a portion of an interior cavity for containing a solid aerosol-generating article;

the atomizer further comprises a liquid storage cavity for storing a liquid matrix, wherein the liquid matrix in the liquid storage cavity can flow into the metal tube;

wherein the power supply assembly comprises an induction coil that generates a varying magnetic field for driving the metal tube to generate heat to atomize the liquid matrix and the aerosol-generating article.

17. An aerosol-generating device according to claim 16, wherein the induction coil comprises a first portion and a second portion longitudinally distributed, wherein the first portion produces a magnetic induction greater than the second portion.