CN116509061A

CN116509061A - Aerosol generating device

Info

Publication number: CN116509061A
Application number: CN202210078126.5A
Authority: CN
Inventors: 程洪森; 王剑平; 徐中立; 李永海
Original assignee: Shenzhen FirstUnion Technology Co Ltd
Current assignee: Shenzhen FirstUnion Technology Co Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2023-08-01

Abstract

The present application proposes an aerosol-generating device comprising: a first assembly comprising a first support, and a susceptor; a first cavity is arranged in the first bracket; a second component removably received in the first cavity; the second assembly comprises a second bracket and an induction coil; the second support has a second cavity defining a chamber for receiving an aerosol-generating article; an induction coil surrounding the second support for generating a varying magnetic field; the susceptor is arranged to extend at least partially into the second cavity when the second component is received in the first cavity to heat the aerosol-generating article. The above aerosol-generating device, wherein the first component generating the magnetic field and the second component generating the induced heat are each independently detachable with respect to each other, is advantageous for independent replacement and cleaning of the components.

Description

Aerosol generating device

Technical Field

The embodiment of the application relates to the technical field of heating non-combustion smoking sets, in particular to an aerosol generating device.

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. Known heating devices include an induction mechanism and a susceptor mechanism housed and secured within a device housing; wherein the induction mechanism is used for generating a magnetic field to induce the susceptor mechanism to generate heat so as to heat tobacco or other non-tobacco products; the known heating device, the sensing mechanism and the susceptor mechanism are difficult to replace and clean independently from within the housing.

Disclosure of Invention

One embodiment of the present application provides an aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; comprising the following steps:

a first assembly comprising a first support, a susceptor held on the first support; a first cavity is formed in the first bracket; and

a second component removably received within the first cavity; the second assembly comprises a second bracket and an induction coil; the second support having a second cavity, at least part of the second cavity defining a chamber for receiving an aerosol-generating article; the induction coil surrounds the second bracket and is held on the second bracket for generating a variable magnetic field; the susceptor is arranged to extend at least partially into the second cavity when the second component is received in the first cavity, penetrated by a varying magnetic field to generate heat to heat the aerosol-generating article.

In a preferred implementation, the first and second brackets are substantially coaxial when the second assembly is received within the first cavity.

In a preferred implementation, the method further comprises:

a housing having longitudinally opposed proximal and distal ends; the housing comprises a first shell and a second shell which are sequentially arranged along the length direction, wherein the first shell is close to the proximal end, and the second shell is close to the distal end; a battery cell for supplying power is arranged in the second shell; the method comprises the steps of,

the first stent is disposed proximate the proximal end;

the first housing is detachably or movably connected to the second housing for selectively shielding or exposing the first bracket when the first bracket is connected to the second housing.

In a preferred implementation, the first housing is arranged to surround the first bracket to shield the first bracket when connected to the second housing; and the first housing is arranged to at least partially reveal the first bracket when detached from the second housing.

In a preferred implementation, the first bracket is detachably connected to the second housing;

the first housing being arranged to prevent removal of the first bracket from the second housing when connected to the second housing; and the first housing is arranged to permit removal of the first bracket from the second housing when removed from the second housing.

In a preferred implementation, the first housing is arranged to move relative to the second housing along the length of the housing and has a first position and a second position relative to the second housing;

wherein the first housing surrounds the first bracket to shield the first bracket when in the first position; the first housing at least partially reveals the first bracket when in the second position;

or, the first bracket is detachably connected to the second housing; the first housing is in the first position to prevent the first bracket from being detached from the second housing; and allowing the first bracket to be detached from the second housing when the first housing is in the second position.

In a preferred embodiment, the first housing is provided with an opening at the proximal end through which, in use, an aerosol-generating article can be removably received in the chamber.

In a preferred embodiment, the second housing is provided with a socket, and the first support extends at least partially into the socket and is connected to the second housing.

In a preferred embodiment, the second housing is further provided with a first fastening structure; the first bracket has a second fastening structure and is prevented from rotating relative to the second housing by cooperation with the first fastening structure.

In a preferred implementation, the first assembly further comprises:

a temperature sensor for sensing the temperature of the susceptor.

In a preferred implementation, the method further comprises:

the circuit board is arranged in the second shell;

two first electrical contacts and two second electrical contacts disposed on the second housing; and the electric core provides power to the induction coil through the two first electric contacts; the circuit board obtains the sensing result of the temperature sensor through the two second electrical contacts.

In a preferred embodiment, the two first electrical contacts and the two second electrical contacts are arranged in sequence in a radial direction of the second housing.

In a preferred implementation, the two second electrical contacts are arranged to lie between the two first electrical contacts.

In a preferred implementation, the second assembly further includes a first conductive pin electrically connected to the induction coil for providing power to the induction coil by the electrical core.

In a preferred implementation, the method further comprises:

a first electrical contact disposed on the second housing; when the first bracket is connected with the second shell and the second component is received in the first cavity, the first conductive spring pin is contacted with the first electrical contact so as to be conducted.

In a preferred embodiment, the second bracket is provided with a first convex edge, a second convex edge and a third convex edge which extend outwards in the radial direction; the first convex edge, the second convex edge and the third convex edge are sequentially arranged along the length direction;

the induction coil is arranged between the first and second flanges;

the first conductive pin is retained on the third ledge.

In a preferred implementation, an avoidance gap is formed in the second protruding edge, and the induction coil is electrically connected with the first conductive spring needle through the avoidance gap.

In a preferred implementation, the first bracket is provided with a spring pin hole; when the first bracket is connected to the second housing and the second component is received in the first cavity, the first conductive pin passes through the pin hole and contacts the first electrical contact.

In a preferred implementation, the method further comprises:

the circuit board is arranged in the second shell;

the first assembly further includes a temperature sensor for sensing the temperature of the susceptor, and a second conductive pin electrically connected to the temperature sensor; the circuit board obtains the sensing result of the temperature sensor through the second conductive elastic needle.

In a preferred implementation, the method further comprises:

the second electrical contact is arranged on the second shell;

when the first bracket is connected to the second shell, the second conductive spring pin is contacted with the second electrical contact to be conducted so as to be used for the circuit board to acquire the sensing result of the temperature sensor.

In a preferred implementation, the first assembly further comprises:

a base or flange at least partially surrounding and bonded to the susceptor;

the first support is arranged to retain the susceptor to the first support by retaining the base or flange.

In a preferred embodiment, a partition wall extending inward in the radial direction is provided on the inner wall of the second bracket, thereby partitioning the second cavity into a first space and a second space located on both sides of the partition wall;

the first space is configured as the chamber for housing an aerosol-generating article;

when the second component is received in the first cavity, the base or flange at least partially extends into the second space and abuts against the partition wall.

In a preferred embodiment, the first bracket includes a first portion and a second portion arranged in sequence along a length direction; wherein;

The first portion is arranged to extend in a length direction and defines the first cavity;

the second portion is disposed perpendicular to the length direction and is disposed to be detachably connected to the second housing.

In a preferred implementation, the first bracket is arranged to provide a stop for the second assembly by the second portion when the second assembly is received within the first cavity.

In a preferred implementation, the susceptor is held in the second portion and extends at least partially from the second portion into the first cavity.

In a preferred implementation, the first portion is provided with at least one window;

the second component is exposed at least partially through the window when the second component is received within the first cavity; whereby a user may actuate the exposed portion of the second component through the window to thereby remove the second component from within the first cavity.

In a preferred implementation, the first portion is provided with at least one window; when the second component is removed from within the first cavity, the susceptor is exposed at least partially through the window.

In a preferred implementation, the method further comprises:

a guide mechanism, the second component being at least partially guided by the guide mechanism during removable receipt within or removal from the first cavity.

In a preferred embodiment, the guide mechanism comprises:

a guide groove located on the second bracket;

the guide rib is arranged on the first bracket and extends along the length direction of the first bracket; the guide rib at least partially protrudes into the guide groove and can move along the length direction relative to the guide groove.

In a preferred implementation, the susceptor is configured as a pin or needle or sheet for insertion into the aerosol-generating article for heating;

alternatively, the susceptor is configured as a tube heated around the aerosol-generating article.

In a preferred implementation, the method further comprises:

the circuit board is arranged in the second shell; the circuit board is configured to allow the electrical core to output power to the induction coil only when the first bracket is connected to the second housing and the second component is received within the first cavity.

The above aerosol-generating device, wherein the first component generating the magnetic field and the second component generating the induced heat are each independently detachable with respect to each other, is advantageous for independent replacement and cleaning of the components.

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 diagram of an aerosol-generating device according to an embodiment;

FIG. 2 is a schematic view of the first housing of FIG. 1 removed from the second housing;

FIG. 3 is a schematic view of the heating mechanism of FIG. 2 from a perspective removed from the second housing;

FIG. 4 is a schematic view of the heating mechanism of FIG. 3 from yet another perspective, removed from the second housing;

FIG. 5 is a schematic cross-sectional view of the aerosol-generating device of FIG. 1 from one perspective;

FIG. 6 is a schematic cross-sectional view of the heating mechanism of FIG. 3 or FIG. 4 from one perspective;

FIG. 7 is an exploded view of the sensing assembly and the sensing assembly of the heating mechanism from one perspective;

FIG. 8 is an exploded view of the sensing assembly and the sensing assembly of the heating mechanism from yet another perspective;

FIG. 9 is a schematic cross-sectional view of a view of the susceptor assembly of FIG. 7 or FIG. 8;

FIG. 10 is a schematic cross-sectional view of a view of the sensing assembly of FIG. 7 or FIG. 8;

FIG. 11 is a schematic cross-sectional view of a viewing angle of a susceptor assembly of yet another embodiment;

FIG. 12 is a schematic view of a state of an aerosol-generating device of yet another embodiment;

fig. 13 is a schematic view of the aerosol-generating device of fig. 12 in yet another state; .

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.

An embodiment of the present application proposes an aerosol-generating device for housing an aerosol-generating article and further heating to generate an aerosol for inhalation.

Further in an alternative implementation, the aerosol-generating article preferably employs a tobacco-containing material that releases volatile compounds from the matrix upon heating; or may be a non-tobacco material capable of being heated and thereafter adapted for electrical heating for smoking. The aerosol-generating article preferably employs a solid matrix, which may comprise one or more of powders, granules, shredded strips, ribbons or flakes of one or more of vanilla leaves, tobacco leaves, homogenized tobacco, expanded tobacco; alternatively, the solid substrate may contain additional volatile flavour compounds, either tobacco or non-tobacco, to be released when the substrate is heated.

Further figures 1-2 show schematic views of an aerosol-generating device of a particular embodiment, comprising several components disposed within an outer body or housing (which may be referred to as a housing). The overall design of the outer body or housing may vary, and the pattern or configuration of the outer body, which may define the overall size and shape of the aerosol-generating device, may vary. Generally, the elongate body may be formed from a single unitary housing, or the elongate housing may be formed from two or more separable bodies.

For example, the aerosol-generating device may have a control body at one end provided with a housing containing one or more reusable components (e.g., a secondary battery such as a rechargeable battery and/or a super capacitor, and various electronics for controlling the operation of the article), and an external body or housing at the other end for housing the components of the aerosol-generating article a and heating.

Further in the specific embodiment shown in fig. 1 to 2, the aerosol-generating device comprises:

a housing substantially defining an outer surface of the aerosol-generating device, having longitudinally opposed proximal and distal ends 110, 120; in use, the proximal end 110 is the end that is proximate to the user for convenient handling of the aerosol-generating article a and heating and drawing; distal end 120 is the end remote from the user.

In some examples, the housing may be formed of a metal or alloy such as stainless steel, aluminum, or the like. Other suitable materials include various plastics (e.g., polycarbonate), metal-plated plastics (metal-plating over plastic), ceramics, and the like.

Further according to fig. 1 to 2, the housing of the aerosol-generating device comprises:

a first housing 10 disposed longitudinally adjacent the proximal end 110 and defining a proximal end 110 of the shell;

A second housing 20 disposed longitudinally adjacent the distal end 120 and defining a distal end 120 of the housing; in the embodiment shown in fig. 1 to 2, the first housing 10 and the second housing 20 are each tubular or cylindrical in shape with an inner cavity; and, the first housing 10 and the second housing 20 are substantially coaxially arranged and have substantially the same outer diameter and inner diameter.

And, the first housing 10 defines an opening 11 at the proximal end 110 through which opening 11 a user can removably receive the aerosol-generating article a within the aerosol-generating device. For example, when inhalation is required, the user receives the aerosol-generating article a through the opening 11 into the aerosol-generating device and operates the aerosol-generating device to heat the aerosol-generating article a to generate an aerosol for inhalation; when the suction is completed, the user removes the aerosol-generating device from the opening 11 with the aerosol-generating article a.

And as can be seen in fig. 1 and 2, the first housing 10 is detachable or removable from the second housing 20 to be available for removal of the first housing 10 in use.

And, the second housing 20 is provided with an input element 21 for user operation to form an input signal for user operation; the aerosol-generating device then controls operation in response to the user input signal. In some implementations, the input element 21 is selected from the group consisting of a mechanical button, a membrane button, a mechanical switch, a rotary encoder, a dial, a knob, a capacitive touch button, a resistive touch button, a joystick, a slider, a trigger button, a touch screen, and a magnetic switch. In the implementation shown in fig. 1 and 2, the input element 21 is for example a mechanical button; the aerosol-generating device controls heating of the contained aerosol-generating article a in response to an operation input signal from the input element 21, for example, a pressing operation or an event by a user through a mechanical button.

Further fig. 2 shows a schematic view of the first housing 10 detached from the second housing 20; after the first housing 10 is disassembled, the heating mechanism for accommodating the aerosol-generating article a is exposed, thereby facilitating the disassembly and cleaning of the heating mechanism. And when the first housing 10 is coupled to the second housing 20, the heating mechanism can be covered or restricted on the second housing 20 to prevent the heating mechanism from being exposed or detached from the second housing 20.

With further reference to fig. 5, the second housing 20 is basically provided with a housing portion for supplying power and control components to the heating mechanism. As shown in fig. 5 in particular, the second housing 20 is internally mounted with:

a battery 22 for supplying power; the battery cell 22 is disposed proximate the distal end 120;

a circuit board 23 for controlling the battery 22 to supply power to the heating mechanism; in some implementations, the power supplied by the circuit board 23 to the heating mechanism is triggered by an input signal from a user operating the input element 21.

And in particular implementations, the circuit board 23 is located within the second housing 20 and disposed away from the distal end 120.

Further fig. 3 and 4 show schematic views of the heating mechanism detached from the second housing 20; in the disassembled and assembled configuration, the second housing 20 includes:

The upper end 210 facing away from the distal end defines a mating slot 211 at the upper end 210, and the heating mechanism is fixedly coupled to the second housing 20 by being inserted into the mating slot 211.

And according to fig. 3 and 4, the second housing 20 includes, on the electronic control part arrangement: the second housing 20 is also provided with:

a first electrical contact 213, and a second electrical contact 214. Wherein the number of the first electrical contacts 213 is two, one as the positive terminal and the other as the negative terminal; and the number of second electrical contacts 214 is two, one being the positive terminal and the other being the negative terminal.

In the arrangement of the positions, the first electrical contact 213 and the second electrical contact 214 are arranged in sequence in the radial direction of the aerosol-generating device and/or the second housing 20; for example, as shown in fig. 4, the first electrical contact 213 and the second electrical contact 214 are located on a straight line m along the radial direction of the aerosol-generating device and/or the second housing 20. And, the first electrical contact 213 is located outside the second electrical contact 214 in the radial direction of the aerosol-generating device and/or the second housing 20.

And in a functional arrangement, the first electrical contact 213 is a contact for outputting power, and the circuit board 23 outputs power to the heating mechanism for heating through the first electrical contact 213. And the second electrical contact 214 is a contact for measuring temperature, and the circuit board 23 measures the temperature of the heating element in the heating mechanism through the second electrical contact 214.

With further reference to fig. 5-10, the heating mechanism includes: a sensing assembly 30 and a sensing assembly 40 that are removable from each other.

Specifically, the sensing assembly 40 includes:

a bracket 41 configured to be a tubular shape extending in the longitudinal direction of the first housing 10; and is surrounded and delimited by a tubular internal cavity of the holder 41 by a cavity 411, which cavity 411 is opposite to the opening 11 of the proximal end 110 of the first housing 10 when assembled; further, in use, the aerosol-generating article a is removably received within the chamber 411 through the opening 11;

an induction coil 42 disposed around the holder 41 and supported by the holder 41; the induction coil 42 can be supplied with an alternating current by the first electrical contact 213, thereby generating a varying magnetic field;

the number of the first conductive pins 43 is two; in assembly, the first conductive pin 43 is fixed to the bracket 41 by riveting, interference, or the like. Both ends of the induction coil 42 are connected to the first conductive pins 43 by welding, crimping, or the like, respectively.

And in the assembled configuration and position, the outer wall of the bracket 41 has first 415, second 412, and third 413 flanges extending radially outwardly therefrom; and, the first, second and third flanges 415, 412 and 413 are spaced apart along the length of the bracket 41.

And, a concave space in an annular shape surrounding the bracket 41 is defined between the first flange 415 and the second flange 412; the induction coil 42 is disposed in the concave space between the first flange 415 and the second flange 412, and both ends of the induction coil 42 in the length direction are respectively abutted against the first flange 415 and the second flange 412 to form a stopper to prevent the induction coil 42 from moving or loosening with respect to the bracket 41.

The first conductive pin 43 is fixedly held to the third flange 413 by riveting or the like, and the first conductive pin 43 is disposed along the length of the bracket 41 after assembly and extends at least partially out of the bracket 41 so as to be connected to the first electrical contact 213.

To facilitate the electrical connection of the two ends of the induction coil 42 to the first conductive pin 43, the second flange 412 is provided with a relief notch 4121 aligned with the first conductive pin 43 along the length of the bracket 41. In assembly, the induction coil 42 is wound around the bracket 41 by a wire, and both ends of the induction coil respectively pass through the avoidance notches 4121 and are then welded or crimped to the first conductive spring pin 43 to form electrical conduction.

Specifically, the susceptor assembly 30 includes:

a bracket 31, a first portion 310 extending in the longitudinal direction of the first housing 10, and a second portion 320 perpendicular to the longitudinal direction of the first housing 10;

The first portion 310 is substantially annular in shape with an interior cavity and a space for receiving and retaining the sensing assembly 40 is at least partially defined by the cavity of the first portion 310; after assembly, the sensing assembly 40 is received within the first portion 310 of the bracket 31 and forms a stop against the second portion 320;

the second portion 320 is provided with one or more pins 321 facing away from the first portion 310, and correspondingly the second housing 20 is provided with mating sockets 211 to be inserted into the sockets 211 through the pins 321 during assembly to form a fixture, thereby connecting the heating mechanism including the sensing assembly 30 and the sensing assembly 40 to the second housing 20.

And referring to fig. 3, to facilitate assembly and positioning of the second portion 320 with the mating slot 211; further, a locking protrusion 212 extending into the insertion groove 211 in the radial direction is provided on the inner side wall of the insertion groove 211 of the second housing 20, and a locking groove 322 between the insertion grooves 211 is defined on the second portion 320. By the cooperation of the snap 212 and the snap groove 322 during assembly, on the one hand, the second portion 320 for the bracket 31 provides an alignment location during bonding to the second housing 20; on the other hand, the detent 212 is advantageous for preventing rotation or loosening of the heating means in the circumferential direction during assembly.

Further referring to fig. 6-10, the susceptor assembly 30 further includes:

susceptor 50, configured as pins or tabs extending in the length direction of first support 31 within the cavity of first portion 310; after assembly, susceptor 50 extends at least partially into chamber 411 of sensing assembly 40; the susceptor 50 comprises a susceptor metal or alloy material that is penetrable by the varying magnetic field generated by the induction coil 42 to generate heat, thereby heating the aerosol-generating article a received within the chamber 411 of the induction assembly 40.

The susceptor assembly 30 further includes:

a base or flange 34 surrounding and bonded to susceptor 50; prepared from a moldable material such as heat resistant ceramic, PEEK, etc. outside of the susceptor 50 and bonded outside of the susceptor 50; screw holes 341 are arranged on the base or the flange 34; the base or flange 34 is then secured to the second portion 320 of the bracket 31 by threading through the screw holes 341, thereby stabilizing the susceptor 50 within the first portion 310 of the bracket 31. Of course, the base or flange 34, which is secured by screws, is removable from the second portion 320 by removal of the screws.

Further according to fig. 8, the support 31 of the susceptor assembly 30 further comprises:

At least one window 311 located on the first portion 310; so that in use a user can clean the surface of the susceptor 50 by extending a cleaning implement, such as a brush, spatula, etc., through the window 311 into the first portion 310 and a user can screw through the window 311 to the base or flange 34.

And, the first portion 310 of the bracket 31 has an opening 312 at an end facing away from the second portion 320; the sensing element 40 is received or received within the cavity of the first portion 310 through the opening 312 or is removed from the cavity. Further, guide ribs 314 extending in the longitudinal direction are provided on the inner wall of the holder 31; correspondingly, the second convex edge 412 and the third convex edge 413 of the bracket 41 of the sensing assembly 40 are also provided with a guide groove 4122; for providing guidance when the sensing assembly 40 is received in or removed from the cavity of the first portion 310 through the opening 312.

Further referring to fig. 8 and 9, the second portion 320 of the bracket 31 is further provided with a pin hole 323 extending therethrough in the longitudinal direction; the first conductive pin 43 of the sensing assembly 40 passes through the pin aperture 323 and extends out of the bracket 31 during assembly to facilitate electrical communication with the first electrical contact 213 of the second housing 20.

With further reference to fig. 6 and 9, the susceptor assembly 30 further includes:

a temperature sensor 51 for sensing the temperature of the susceptor 50. In some implementations, the temperature sensor 51 is a thermistor type temperature sensor such as PT1000 or the like, or a thermocouple. The temperature sensor 51 is in turn used to sense the temperature of the susceptor 50 by being in thermally conductive connection with the susceptor 50, either directly or indirectly.

In the preferred implementation of fig. 6 and 9, the susceptor 50 is a hollow needle and the temperature sensor 51 is housed and encapsulated within the susceptor 50 to optimize the thermal conduction efficiency therebetween, enhancing the accuracy of sensing the temperature of the susceptor 50. Or in yet other variations, the temperature sensor 51 is abutted or welded to the surface of the susceptor 50 to provide thermal conduction to thereby sense the temperature of the susceptor 50.

And, with further reference to fig. 6 and 9, the susceptor assembly 30 further includes:

the second conductive pins 33, two in number, are fixed to the second portion 320 of the bracket 31, and the second conductive pins 33 are exposed outside the bracket 31. Correspondingly, the positive electrode and the negative electrode of the temperature sensor 51 are connected to the second conductive pin 33 by welding or crimping, respectively. After assembly, the second conductive spring pins 33 abut against the second electrical contacts 214 of the second housing 20 to form conduction, and the circuit board 23 obtains the sensing result of the temperature sensor 51 through the second electrical contacts 214.

With further reference to fig. 6 and 7, the first conductive pin 43 and the second conductive pin 33 are arranged along the radial direction of the aerosol-generating device after assembly. Specifically, the first conductive pin 43 and the second conductive pin 33 are arranged along a straight line m in the radial direction.

With further reference to the preferred embodiment shown in fig. 10, the inner surface of the support 41 of the sensing assembly 40 is further provided with a partition wall 414 extending radially inward, and the inner space of the support 41 is defined by the partition wall 414 to form a chamber 411 and an assembly space 415 at both sides of the partition wall 414. After assembly, the base or flange 34 is received and retained in the assembly space 415 and forms a stop against the divider wall 414.

With further reference to FIG. 6, when the inductive component 40 is assembled into the sensing component 30, at least a portion of the inductive coil 42 is exposed or visible through the window 311 of the first portion 310 of the bracket 31; and, the second flange 412 of the bracket 41 is at least partially exposed at the window 311. The user can remove sensing assembly 40 from bracket 41 from bracket 31 by manipulating second ledge 412 of clamping bracket 41.

In the assembled aerosol-generating device, in some implementations, the frequency of the alternating current supplied by the circuit board 23 to the induction coil 42 is between 80KHz and 500KHz; more specifically, the frequency may be in the range of about 200KHz to 300 KHz.

In a preferred embodiment, the DC supply voltage provided by the battery 22 is in the range of about 2.5V to about 9.0V, and the amperage of the DC current that the battery 22 can provide is in the range of about 2.5A to about 20A. Typically, the battery cell 22 is a rechargeable battery. Alternatively, the cell 22 may be another form of charge storage device, such as a capacitor. The battery cells 22 may need to be recharged and may have a capacity that allows sufficient energy to be stored for one or more puffs; for example, the cells 22 may have sufficient capacity to allow for continuous aerosol generation over a period of about six minutes or over a period of multiples of six minutes. In another example, the cells 22 may have sufficient capacity to allow a predetermined number of puffs or discrete susceptor 50 activations.

In some implementations, susceptor 50 may also be made of grade 420 stainless steel (SS 420), as well as iron/nickel containing alloy materials (such as permalloy). In yet other alternative embodiments, susceptor 50 is made from the above susceptor materials or is obtained by plating, depositing, etc. a coating of susceptor material on the outer surface of a heat resistant substrate material such as ceramic. For example, in the embodiment of susceptor 50 of fig. 5 above, susceptor 50 is prepared from a tubular ceramic, glass, or like substrate surface sprayed, deposited, or the like to form a susceptor coating.

In an embodiment, the induction coil 42 is fabricated from a low resistivity metal or alloy material, such as gold, silver, copper, or alloys thereof. And in some preferred implementations, the wire material of the induction coil 42 is made of litz wire or litz cable. In litz material, the wire or cable is made of a plurality or bundles of conductive threads, for example individual insulated wires, which are bundled in a winding or braiding manner. Litz materials are particularly suitable for carrying alternating current. The individual wires are designed to reduce surface effect and near field effect losses in the conductor at high frequencies and allow the interior of the wire material of the induction coil 42 to contribute to the conductivity of the induction coil 42.

In some embodiments, the circuit board 23 may include a controller. The controller may comprise a microprocessor, which may be a programmable microprocessor. The controller may include other electronic components. The controller may be configured to regulate the power supplied to the induction coil 42, thereby causing the induction coil 42 to generate a varying magnetic field.

In some embodiments, the varying magnetic field generated by the induction coil 42 may be continuously supplied to the susceptor 50 after the device is activated, or may be intermittently supplied, such as on a mouth-by-mouth basis. The varying magnetic field is supplied to the susceptor 50 in the form of pulses.

In some embodiments, the power supplied to the induction coil 42 may be triggered by the puff detection system. Alternatively, the power supplied to the induction coil 42 may be triggered by pressing an on/off button for the duration of user suction. The puff detection system may be provided as a sensor, which may be configured as an airflow sensor, and may measure airflow rate. The airflow rate is a parameter that characterizes the amount of air that a user draws through the airflow path of the aerosol-generating device each time. The airflow sensor may detect the initiation of suction when the airflow exceeds a predetermined threshold. The initiation may also be detected when the user activates the button. The sensor may also be configured as a pressure sensor to measure the pressure of air within the aerosol-generating device, which is inhaled by a user through the airflow path of the device during inhalation.

And further in a more preferred implementation, to prevent dry-fire from occurring when at least one of sensing assembly 40 and/or sensing assembly 30 is not connected to second housing 20, circuit board 23 is further configured to allow power from battery 22 to be supplied to induction coil 42 only when both of sensing assembly 40 and/or sensing assembly 30 are simultaneously connected to second housing 20.

In particular, in some implementations, the device may detect whether the sensing assembly 40 and/or the sensing assembly 30 is connected to the second housing 20 via a sensor, such as a distance sensor, a light sensor, or the like.

Or in still other implementations, the sensing assembly 40 and/or sensing assembly 30 is electrically connected to the second housing 20 via an ADC sampling pin on the circuit board 23 provided with a programmable microprocessor. For example, the negative electrodes of the circuit design are grounded, and the programmable microprocessor sends a high level to one of the first electrical contacts 213 as a positive electrode through the ADC pin, and when the sensing component 40 is connected to the first electrical contact 213 and is turned on, the high level of the positive electrode in the first electrical contact 213 is pulled down to the ground potential as a negative electrode; when the sensing component 40 is not connected to the first electrical contact 213, one of the first electrical contact 213 as the positive terminal always sends out a high level for the ADC pin; it is determined whether the sensing assembly 40 is connected to the second housing 20 and is in conductive communication with the first electrical contact 213 based on this level change. Similarly, it is also possible to detect whether the sensing element 30 is connected to the second housing 20 and in electrical communication with the second electrical contact 214 by a similar level change.

In some alternative implementations, the induction coil 42 is wound from a conventional wire material having a circular cross-section. Or in yet other variations, the induction coil 42 is wound from a wire material having a rectangular, square, polygonal, etc. cross-section.

Or further fig. 11 shows a schematic diagram of a sensing component 30a of yet another alternative embodiment, in which sensing component 30a includes:

a bracket 31a having a first portion 310a extending in a length direction and a second portion 320a perpendicular to the length direction; the first portion 310a is hollow and is configured to receive the sensing element 40;

susceptor 50a, configured to be a tubular shape extending at least partially within first portion 310 a; and when the sensing assembly 40 is received in the first portion 310a, the susceptor 50a is at least partially within the holder 41 of the sensing assembly 40 and is heated by the tubular susceptor 50a around the aerosol-generating article a received within the holder 41.

Likewise, susceptor 50a is secured and held to base or flange 34 a; and the base or flange 34a is secured to the second portion 320a of the bracket 31a by screws or the like.

And, the temperature sensor 51a senses the temperature of the susceptor 50a by being coupled to the inner wall or the outer wall of the susceptor 50 a. The temperature sensor 51a is connected to the second conductive pin 33a through a lead 511a, so that conduction is formed by contact between the second conductive pin 33a and the second electrical contact 214 after assembly, and the circuit board 23 is facilitated to obtain a sensing result of the temperature sensor 51 a.

Further figures 12 and 13 show schematic diagrams of an aerosol-generating device of a further embodiment; the aerosol-generating device of this embodiment includes:

a first housing 10b and a second housing 20b; and the first housing 10b is movable relative to the second housing 20b in the longitudinal direction of the aerosol-generating device, and has a first position and a second position relative to the second housing 20b.

Wherein when the first housing 10b is moved to the first position in fig. 12, the first housing 10b surrounds and shields the first assembly 30b and/or the bracket 31b. And the first housing 10b in the first position, prevents the first assembly 30b and/or the bracket 31b from being removed or disassembled from the second housing 20b.

And, when the first housing 10b is moved to the second position in fig. 13, the first housing 10b at least partially avoids the first component 30b and/or the bracket 31b to expose the first component 30b and/or the bracket 31b. And the first housing 10b in the second position, allows the first assembly 30b and/or the bracket 31b to be removed or disassembled from the second housing 20b.

And, the first housing 10b is closer to the proximal end 110b in the first position than in the second position. And the first housing 10b is substantially clear of the circuit board 23b in the first position; meanwhile, the first housing 10b at least partially surrounds the circuit board 23b and/or the second housing 20b in the second position.

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

1. An aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; characterized by comprising the following steps:

2. The aerosol-generating device of claim 1, further comprising:

the first stent is disposed proximate the proximal end;

3. The aerosol-generating device of claim 2, wherein the first housing is arranged to surround the first support to shield the first support when connected to the second housing; and the first housing is arranged to at least partially reveal the first bracket when detached from the second housing.

4. The aerosol-generating device of claim 2, wherein the first bracket is detachably connected to the second housing;

5. The aerosol-generating device of claim 2, wherein the first housing is arranged to move relative to the second housing along a length of the housing and has a first position and a second position relative to the second housing;

6. An aerosol-generating device according to any of claims 2 to 5, wherein the first housing is provided with an opening at the proximal end through which an aerosol-generating article can be removably received in the chamber in use.

7. An aerosol-generating device according to any one of claims 2 to 5, wherein the second housing is provided with a socket, and the first bracket extends at least partially into the socket to connect with the second housing.

8. The aerosol-generating device of any one of claims 2 to 5, wherein the second housing further has a first fastening structure disposed thereon; the first bracket has a second fastening structure and is prevented from rotating relative to the second housing by cooperation with the first fastening structure.

9. The aerosol-generating device of any of claims 2 to 5, wherein the first assembly further comprises:

a temperature sensor for sensing the temperature of the susceptor.

10. The aerosol-generating device of claim 9, further comprising:

the circuit board is arranged in the second shell;

11. The aerosol-generating device according to claim 10, wherein the two first electrical contacts and the two second electrical contacts are arranged in sequence along a radial direction of the second housing.

12. The aerosol-generating device according to claim 11, wherein the two second electrical contacts are arranged to lie between the two first electrical contacts.

13. The aerosol-generating device of any of claims 2 to 5, wherein the second assembly further comprises a first electrically conductive pin electrically connected to the induction coil for providing power to the induction coil by the electrical core.

14. The aerosol-generating device of claim 13, further comprising:

15. The aerosol-generating device of claim 13, wherein the second bracket is provided with first, second and third radially outwardly extending flanges; the first convex edge, the second convex edge and the third convex edge are sequentially arranged along the length direction;

the induction coil is arranged between the first and second flanges;

the first conductive pin is retained on the third ledge.

16. The aerosol-generating device of claim 15, wherein the second ledge is provided with an avoidance gap through which the induction coil is electrically connected to the first conductive pin.

17. The aerosol-generating device of claim 14, wherein the first support is provided with a bullet hole; when the first bracket is connected to the second housing and the second component is received in the first cavity, the first conductive pin passes through the pin hole and contacts the first electrical contact.

18. The aerosol-generating device of any of claims 2 to 5, further comprising:

the circuit board is arranged in the second shell;

19. The aerosol-generating device of claim 18, further comprising:

the second electrical contact is arranged on the second shell;

20. The aerosol-generating device of any of claims 1 to 5, wherein the first assembly further comprises:

a base or flange at least partially surrounding and bonded to the susceptor;

21. The aerosol-generating device of claim 20, wherein a partition wall extending inward in a radial direction is provided on an inner wall of the second holder to partition the second cavity into a first space and a second space on both sides of the partition wall;

22. The aerosol-generating device of any one of claims 1 to 5, wherein the first support comprises a first portion and a second portion arranged in sequence along a length; wherein;

23. The aerosol-generating device of claim 22, wherein the first bracket is arranged to provide a stop for the second component by the second portion when the second component is received within the first cavity.

24. The aerosol-generating device of claim 22, wherein the susceptor is retained in the second portion and extends at least partially from the second portion into the first cavity.

25. The aerosol-generating device of claim 22, wherein the first portion has at least one window disposed thereon;

26. The aerosol-generating device of claim 22, wherein the first portion has at least one window disposed thereon; when the second component is removed from within the first cavity, the susceptor is exposed at least partially through the window.

27. The aerosol-generating device of any one of claims 1 to 5, further comprising:

28. The aerosol-generating device according to any one of claims 1 to 5, wherein the guide mechanism comprises:

a guide groove located on the second bracket;

29. Aerosol-generating device according to any of claims 1 to 5, wherein the susceptor is configured as a pin or needle or sheet for insertion into an aerosol-generating article for heating;

30. The aerosol-generating device of any of claims 2 to 5, further comprising: