AEROSOL GENERATING DEVICE

Abstract

 The present invention relates to an aerosol generating device, comprising a main machine, an extractor which can be provided in a manner of being separated from the main machine, and a heating member provided on the main machine.An accommodating space used for accommodating an aerosol generating matrix is formed in the extractor. The heating member comprises a heating portion which is used for being inserted into the aerosol generating matrix in the accommodating space.When the extractor is at a first position,the heating portion is capable of heating the aerosol generating matrix. When the extractor is at a second position,the extractor is separated from the main machine, so that the heating portion is separated from the aerosol generating matrix, thus the aerosol generating matrix can be conveniently and quickly pulled out of the extractor and the aerosol generating matrix is not damaged, thereby avoiding residual substances on the aerosol generating matrix from remaining in the extractor.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to the technical field of atomization, and more particularly to an aerosol generation device.

DESCRIPTION OF THE RELATED ART

[0002] A heat-not-burning device, also known as a low-temperature baking device, is a kind of aerosol generation device that applies a low temperature heating but not burning manner to heat a smoke-forming material to form aerosol. Contemporarily, the heat-not-burning type device often applies a heater, such as a heating plate or a heating rod, to insert into the cigarette roll to heat the cigarette roll, and by controlling the heating temperature, the ingredients of the cigarette roll vaporize to generate smoke. When a cigarette roll has been heated for a predetermined period of time and the amount of smoke generated thereby reaches an upper limit, the cigarette roll has to be pulled out from the heat-not-burning device or heating has to be stopped, or a fresh cigarette roll must be replaced for continuous using. At this moment, it is a crucial issue as to how to easily and efficiently pull out the cigarette roll from the heat-not-burning device without causing damage to the cigarette roll and leaving residues on the heater. The known low temperature heat-not-burning device often adopt hand pulling to remove the cigarette roll from the heat-not-burning device. Since the magnitude of force applied by users can be different, the degree of pulling by hands is also different. Many users, in pulling out the cigarette roll, often cause the cigarette roll broken and remaining of cigarette filament on the heating body.

SUMMARY OF THE INVENTION

[0003] The technical problem that the present invention is made to overcome is to provide an improved aerosol generation device.

[0004] The technical solution that the present invention adopts to overcome the technical problems is to provide an aerosol generation device which comprises a main body, an extractor detachably mounted to the main body, and a heater mounted to the main body, the extractor forming, in an interior thereof, with a receiving space for receiving therein an aerosol generation substrate, the heater comprising a heating section that is insertable into an interior of the aerosol generation substrate received in the receiving space;
wherein when the extractor is at a first position, the heating section is capable of heating the aerosol generation substrate; and when the extractor is at a second position, the extractor is separated from the main body, so as to have the heating section separated from the aerosol generation substrate.

[0005] In some embodiments, when the extractor is at the first position, the extractor is in contact with the main body; and when the extractor is at the second position, the heating section withdraws, at least partly, out of the receiving space.

[0006] In some embodiments, the receiving space has a bottom that forms a bottom wall against which the aerosol generation substrate contacts, the bottom wall being formed with an insertion opening through which the heating section is insertable; and when the extractor is at the first position, the heating section is completely inserted into the receiving space.

[0007] In some embodiments, a shape of the insertion opening corresponds to a cross-sectional shape of the heating section, and the heating section is set in clearance fitting inside the insertion opening.

[0008] In some embodiments, the heating section has a form of a plate or a bar, and a sharp guiding structure is provided on an end of the heating section to facilitate insertion into the aerosol generation substrate.

[0009] In some embodiments, the extractor comprises a first housing, and the first housing forms, in an interior thereof, the receiving space; and the main body comprises a second housing, and the first housing is detachably mounted atop the second housing in a longitudinal direction.

[0010] In some embodiments, the extractor further comprises an extraction tube arranged, in the longitudinal direction, inside the first housing, the inner wall surface of the extraction tube defining the receiving space.

[0011] In some embodiments, the extractor further comprises a first magnetic body arranged in a bottom of the first housing, and the main body further comprises a second magnetic body arranged in a top of the second housing; and when the extractor and the main body are connected, the first magnetic body and the second magnetic body are close to and attract each other.

[0012] In some embodiments, a cover in a tubular form is provided on an upper end of the main body to surround the outside of the heating section, and the cover is spaced from the inner wall surface of the first housing and the outer wall surface of the extraction tube respectively.

[0013] In some embodiments, the extraction tube is integrally extended downward from the top wall of the first housing, or the extraction tube and the first housing are separately manufactured and the extraction tube is assembled to the top wall of the first housing.

[0014] In some embodiments, the extraction tube comprises a stationary tube fixed to the first housing and a movable tube slidably fit, in an axial direction, to the lower end of the stationary tube, the stationary tube and the movable tube having inner wall surfaces that jointly define the receiving space, the bottom of the movable tube forming the bottom wall and the insertion opening.

[0015] In some embodiments, a raised platform is formed by extending outward from a lower end of the stationary tube, and a flange is formed by extending inward from a top of the movable tube, the flange and the raised platform being engageable with each other so as to have the raised platform stopped under the flange.

[0016] In some embodiments, the main body comprises a fitting section, a bottom of the extractor being fit outside the fitting section, the fitting section having an axial length that is smaller than or equal to a sliding stroke of the movable tube relative to the stationary tube.

[0017] In some embodiments, a first snap engagement section is formed on an outside of a top end of the main body and has an axial height that is smaller than the sliding stroke of the movable tube relative to the stationary tube, and a second snap engagement section is formed in an inside of a bottom end of the extractor and is snap-engageable with the first snap engagement section.

[0018] In some embodiments, the main body comprises a base fit into a top of the second housing, a fitting section extending upward from a top wall of the base, and a cover extending upward from a top wall of the fitting section, and the fitting section has an outer wall surface that forms the first snap engagement section, and the cover surrounds the outside of the heating section and is spaced from the inner wall surface of the first housing and the outer wall surface of the extraction tube respectively; and
the extractor further comprises a first magnetic body embedded in the bottom of the first housing, the first magnetic body forming the second snap engagement section, the main body being provided, in an interior thereof, with a second magnetic body corresponding to the first magnetic body.

[0019] In some embodiments, with the extractor and the main body being connected, a lower end face of the movable tube abuts against a top wall of the fitting section and a lower end face of the stationary tube abuts against the bottom wall.

[0020] In some embodiments, the main body further comprises a seat assembly embedded in the top of the second housing and the heater inserted into the seat assembly, the top end of the heater forming the heating section.

[0021] In some embodiments, an air flow channel in communication with the receiving space is formed in the seat assembly and surrounds the heater, the first housing and/or the second housing being formed with at least one air inlet hole in communication with the air flow channel.

[0022] Implementing the present invention provides at least the following beneficial effects. After the extractor and the main body are connected, the heating section is capable of heating the aerosol generation substrate; and after the heating is finished, the extractor and the main body can be separated from each other to have the heating section separated from the aerosol generation substrate, so as to easily and efficiently pull the aerosol generation substrate out of the extractor, without causing damage to the aerosol generation substrate and preventing residual substances of the aerosol generation substrate from remaining in the aerosol generation device.

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the following, the present invention will be further described, with reference to the attached drawings and the embodiments, and in the drawings:

FIG. 1 is a schematic view, showing a cross-sectional structure of an aerosol generation device according to a first embodiment of the present invention, with an extractor being at a first position;

FIG. 2 is schematic view, showing a cross-sectional structure of the aerosol generation device of FIG. 1, with the extractor being at a second position;

FIG. 3 is a schematic view, showing a cross-sectional structure of an aerosol generation device according to a second embodiment of the present invention, with an extractor being at a first position;

FIG. 4 is schematic view, showing a cross-sectional structure of the aerosol generation device of FIG. 3, with the extractor being at a second position;

FIG. 5 is a schematic view, showing a cross-sectional structure of an aerosol generation device according to a third embodiment of the present invention, with an extractor being at a first position;

FIG 6 is schematic view, showing a cross-sectional structure of the aerosol generation device of FIG 5, with a raised platform abutting a flange;

FIG 7 is schematic view, showing a cross-sectional structure of the aerosol generation device of FIG 5, with the extractor being at a second position; and

FIG. 8 is schematic view, showing a cross-sectional structure of the aerosol generation device of FIG 5 taken from a different direction.

DETAILED DESCRIPTION OF EMBODIMENTS

[0024] For better understanding of the technical features, objectives, and the efficacy of the present invention, a detailed description of specific embodiments of the present invention will be provided with reference to the attached drawings.

[0025] FIGS. 1-2 show an aerosol generation device according to a first embodiment of the present invention, which is generally of a cylindrical form and comprises an extractor 1, a main body 2 that is mounted in a detachable manner on the extractor 1 in a longitudinal direction, and a heater 22 mounted to the main body 2. The aerosol generation device is capable of heating, in a low temperature heating but not burning manner, an aerosol generation substrate 3 to generate smoke to be inhaled by users. It is appreciated that the aerosol generation device is not limited to the cylindrical form and can be of other shapes, such as a form of a square prism. In the embodiment, the aerosol generation substrate 3 is a rolled cigarette.

[0026] The extractor 1, in some embodiments, may comprise a first housing 11 and a first magnetic body 13 in a form of a circular ring tightly embedded in a bottom of the first housing 11. The first housing 11 has an inside wall surface that defines a receiving space 110 for receiving the aerosol generation substrate 3 therein. The receiving space 110 has an opening on its top end, and the receiving space 110 has a bottom that forms a bottom wall 112. The bottom wall 112 is formed with an insertion opening 111 into which the heater 22 is insertable. The aerosol generation substrate 3 is insertable from the top opening of the receiving space 110 into the interior of the receiving space 110 and contacting the bottom wall 112.

[0027] The main body 2, in some embodiments, may comprise a second housing 21, the heater 22, a seat 24, and a second magnetic body 23. The second housing 21 has an interior in which electronic components, such as a battery and a circuit board, can be disposed for supplying electricity power to the heater 22 and controlling operations of activation and deactivation of the aerosol generation device.

[0028] The seat 24 is fit, in the longitudinal direction, into an upper end of the second housing 21, and comprises a sidewall 2411 which is cylindrical, and a top wall 2412 which is integrally formed with a top of the sidewall 2411 and in the form of a circular plate. The sidewall 2411 is raised outwards from two sides thereof in a circumferential direction to each form a snap platform 2413, and an inner wall surface of the second housing 21 is recessed to form snap troughs 211 respectively corresponding to the snap platforms 2413. The snap platforms 2413 and the snap troughs 211 are mutually snap engageable with each other, therefore the seat 24 is fixed in a snap manner in the interior of the second housing 21. The fixing between the seat 24 and the second housing 21 that is achieved with insertion and internal snap engagement is easy and reliable and makes no exposure of any external engagement outside the main body 2, so as to be more aesthetically pleasing. The second magnetic body 23 is in a form of a circular ring, which is tightly embedded inside the sidewall 2411 and abutting against a lower end face of the seat 24. The first magnetic body 13 and the second magnetic body 23 are magnets that attract each other, or can be any other elements that exhibit magnetic properties (such as iron-cobalt- nickel).

[0029] The heater 22 is fit, in the longitudinal direction, into the top wall 2412 and comprises a heating section 221 that extends into the receiving space 110 to heat the aerosol generation substrate 3. The heating section 221 is extended through the insertion opening 111 in the bottom of the receiving space 110 into the receiving space 110 and inserted into the aerosol generation substrate 3 in order to heat and bake the aerosol generation substrate 3. The heater 22 can be in a form of a plate or a bar. An upper end of the heater 22 is provided with a sharpened guide structure to facilitate insertion into the aerosol generation substrate 3. A shape of the insertion opening 111 can correspond to a cross-sectional shape of the heating section 221, and a cross-sectional size of the insertion opening 111 can be slightly greater than a cross-sectional size of the heating section 221 to make clearance fitting between the heating section 221 and the insertion opening 111 and facilitating the insertion and withdrawal of the heating section 221, and also to have residues, such as the aerosol forming substrate that sticks to the heating section 221 after heating, remaining on the heating section 221 to be scraped off by the bottom wall 112 through friction in separating the heating section 221 from the aerosol generation substrate 3, so as to carry out cleansing of the heating section 221. In the instant embodiment, the heater 22 is made in the form of a plate, and the insertion opening 111 is a rectangle of which the cross-sectional size is slightly greater than the cross-sectional size of the heating section 221. It is appreciated that in other embodiments, the heater 22 can be mounted to the main body 2 in a removable and detachable manner.

[0030] The extractor 1 has a first position in which the extractor 1 is connected to the main body 2 and a second position in which the extractor 1 is separated from the main body 2. When the extractor 1 and the main body 2 are connected, the first housing 11 and the second housing 21 are positioned each other and abut against each other, and the first magnetic body 13 in the bottom of the first housing 11 and the second magnetic body 23 in the top of the second housing 21 are placed close to each other and attract each other, so that by means of the attraction force between the first magnetic body 13 and the second magnetic body 23, the extractor 1 and the main body 2 are fixed to each other. The heater 22 penetrates inward through the insertion opening 111 in the bottom of the extractor 1, so as to have the heating section 221 completely inserted into the receiving space 110. The aerosol generation substrate 3 is disposed into the extractor 1 from the top thereof. The battery in the main body 2 supplies electricity to the heater 22, and the heater 22, after being supplied with electricity, heats up to subject the aerosol generation substrate 3 to heating and baking (at this moment, the extractor 1 and the main body 2 are located at the first position where they are connected).

[0031] When heating of the aerosol generation substrate 3 is completed, pulling upward the extractor 1 makes the first magnetic body 13 and the second magnetic body 23 separating from each other and the extractor 1 and the main body 2 are then separated from each other (at this moment, the extractor 1 and the main body 2 are located at the second position where they are separated from each other), and at this moment, there is no connection between the extractor 1 and the main body 2, the extractor 1 drives, by means of the bottom wall 112 of the receiving space 110, the aerosol generation substrate 3 to move upwards, causing the heating section 221 to withdraw from the aerosol generation substrate 3 and, at the same time, the bottom wall 112 scrapes off residue substances sticked to an outside of the heating section 221.

[0032] FIGS. 3-4 show an aerosol generation device according to a second embodiment of the present invention, and the embodiment is primarily different from the first embodiment in that in the instant embodiment, an extraction tube 12 in the form of a circular tube extends downward from the top wall of the first housing 11. An inside wall of the extraction tube 12 defines and delimits the receiving space 110 in which the aerosol generation substrate 3 is receivable. Further, in the instant embodiment, the seat 24 may comprise a base 241 that is fit inside the second housing 21 and a cover 243 in the form of a cylinder extending upwardly from a top wall 2412 of the base 241. The cover 243 is sleeved around the heater 22 to prevent the heater 22 from being damaged due to impact by lateral shifting of the first housing 11 during connecting of the extractor 1 and the main body 2. The cover 243 is arranged between the first housing 11 and the extraction tube 12 and forms spacing with respect to each of an inner wall surface of the first housing 11 and an outer wall surface of the extraction tube 12. In some embodiments, spacing distances of the cover 243 from the inner wall surface of the first housing 11 and the outer wall surface of the extraction tube 12 can be 0.5-5mm, preferably 3-5mm.

[0033] FIGS. 5-7 show an aerosol generation device according to a third embodiment of the present invention, and the embodiment is primarily different from the second embodiment in that in the instant embodiment, the extraction tube 12 comprises a stationary tube 121 and a movable tube 122 that are sleeved over each other and is slidable with respect to each other in an axial direction. Inner wall surfaces of the stationary tube 121 and the movable tube 122 jointly define and delimit the receiving space 110 in which the aerosol generation substrate 3 is receivable.

[0034] Specifically, in the instant embodiment, the stationary tube 121 is tightly fit, at an upper end thereof, into the top wall of the first housing 11, and is fixed to the first housing 11 by means of various ways, such as screw connection and snap connection. The movable tube 122 is sleeved over a lower end of the stationary tube 121 in a manner of being axially slidable up and down. The movable tube 122 has a bottom wall that forms the bottom wall 112 of the receiving space 110. A top of the movable tube 122 is extended inwardly to form a flange 1221. An outer circumference of the lower end of the stationary tube 121 is raised outward to form a raised/convex platform 1211. The flange 1221 and the raised platform 1211 cooperate with each other to prevent the stationary tube 121 and the movable tube 122 from detaching from each other during relative sliding therebetween. In some embodiments, a sliding stroke of the movable tube 122 relative to the stationary tube 121 is 2.5-5.5mm, such as around 4.5mm.

[0035] A first snap engagement section is formed on an outside of a top end of the main body 2, and a second snap engagement section is formed in an inside of a bottom end of the extractor 1 and is snap-engageable with the first snap engagement section, wherein the first snap engagement section has an axial length that is smaller than or equal to the sliding stroke of the movable tube 122 relative to the stationary tube 121. Specifically, in the instant embodiment, the seat 24 comprises a base 241 that is fit into the second housing 21, a fitting section 242 extending upward from a top wall of the base 241, and a cover 243 extending from a top wall of the fitting section 242. The base 241, the fitting section 242, and the cover 243 having inside diameters and outside diameters that are sequentially reduced in a step-by-step manner. The fitting section 242 has an outer wall surface that forms the first snap engagement section. The first magnetic body 13 forms the second snap engagement section. When the extractor 1 and the main body 2 are connected together, the first magnetic body 13 is tightly fit outside the fitting section 242 to thereby enhance stability of the connection between the extractor 1 and the main body 2. The fitting section 242 has an axial length that is smaller than the sliding stroke of the movable tube 122 relative to the stationary tube 121. In some embodiments, the axial length of the fitting section 242 is 1-2.5mm, preferably around 2mm. In other embodiments, the first magnetic body 13 and the second magnetic body 23 can be omitted, and the connection between the extractor 1 and the main body 2 is achieved through the two fitting to each other, such as the bottom of the first housing 11 being directly fit over the outside of the fitting section 242, and under this condition, the second snap engagement section can be formed by inward extension from an inner wall surface of a bottom end of the first housing 11.

[0036] The fitting section 242 is formed with a through hole 2421 through which the heating section 221 is insertable. The heating section 221 is capable of extending, in sequence, through the through hole 2421 and the insertion opening 111 to insert upward into the aerosol generation substrate 3. In the instant embodiment, a cross-sectional shape and size of the through hole 2421 are consistent with a cross-sectional shape and size of the insertion opening 111. When the heating section 221 is separated from the aerosol generation substrate 3, a hole wall of the through hole 2421 applies an effect of friction to scrape off residual substances remaining on the heating section 221. In other embodiments, the cross-sectional size of the through hole 2421 can be greater than the cross-sectional size of the insertion opening 111. In some other embodiments, the cross-sectional shape of the through hole 2421 can be different from the cross-sectional shape of the insertion opening 111.

[0037] Considering an example, where the sliding stroke of the movable tube 122 relative to the stationary tube 121 is 4.5mm, and the axial length of the fitting section 242 is 2mm, as shown in FIG. 5, when the extractor 1 is at the first position, the extractor 1 and the main body 2 are positioned against each other, and at this moment, the first magnetic body 13 of the extractor 1 is fit over and around the outside of the fitting section 242 of the main body 2 and attracts the second magnetic body 23, the lower end face of the movable tube 122 abutting against the top wall of the fitting section 242, the lower end face of the stationary tube 121 abutting against the bottom wall 112 of the movable tube 122. The aerosol generation substrate 3 is mounted into the stationary tube 121 from the top thereof to abut against the bottom wall 112 of the movable tube 122, and the heating section 221 of the heater 22 extends from the insertion opening 111 on the bottom of the movable tube 122 to insert into the aerosol generation substrate 3, so that after electricity is supplied and heating is carried out, the aerosol generation substrate 3 is heated and baked.

[0038] After heating of the aerosol generation substrate 3 is finished, the first housing 11 is pulled upward first, and the first housing 11 drives the stationary tube 121 and the first magnetic body 13 to move upwards. When the upward movement exceeds 2mm, the first magnetic body 13 and the fitting section 242 are separated from each other, so as to separate the extractor 1 and the main body 2 from each other. At this moment, since the raised platform 1211 of the stationary tube 121 has not yet being moved upward to contact with the flange 1221 of the movable tube 122, the movable tube 122, the aerosol generation substrate 3, and the heater 22 are kept relatively immobile. As shown in FIG. 6, continuing pulling the first housing 11 upward to reach a displacement of 4.5mm makes the raised platform 1211 upward moving to get into contact with the flange 1221, and at this moment, further pulling the first housing 11 would cause the stationary tube 121 to drive the movable tube 122 to move upward together and the movable tube 122 in turn drives, through the bottom wall 112, the aerosol generation substrate 3 to move upward; and then, further pulling upward the first housing 11 would make the aerosol generation substrate 3 separating from the heating section 221, as shown in FIG. 7, and at the same time, the bottom wall 112 may scrape off the residual substances sticking to the outside of the heating section 221.

[0039] As shown in FIG. 8, the aerosol generation device in the instant embodiment may further comprises an internal seat 25 fit inside the seat 24. The internal seat 25 and the seat 24 jointly form a seat assembly for receiving the heater 22 to insert therein and for supporting the extractor 1. The second magnetic body 23 is tightly fit inside the internal seat 25. The first magnetic body 13 is fit outside the fitting section 242 and forms an air passage gap 130 with respect to a top surface of the base 241. A top end face of the internal seat 25 and a bottom end face of the fitting section 242 define therebetween an air flow channel 240 surrounding the heater 22. Two opposite sides of a sidewall on the bottom of the fitting section 242 are each formed with a air flow hole 2420 in communication with the air flow channel 240. Two opposite sides of a bottom part of the sidewall of the first housing 11 are each formed with an air inlet hole 120. External air moves, in sequence, through the air inlet hole 120, the air passage gap 130, and the air flow hole 2420 to get into the air flow channel 240 for cooling down the seat assembly, and then, the air carrying heat moves, in sequence, through the through hole 2421 and the insertion opening 111 to get into the interior of the aerosol generation substrate 3 in the receiving space 110. The air so preheated helps enhance the atomization efficiency and makes a temperature distribution inside the aerosol generation substrate 3 more uniform.

[0040] It is appreciated that in other embodiments, the air inlet hole 120 can be formed in the sidewall or the bottom wall of the second housing 21. The air passage gap 130 between the bottom surface of the first magnetic body 13 and the top surface of the base 241 can be omitted, provided a gas flow is conducted to flow over the surface of the seat assembly to cool down the seat assembly, such as the air inlet hole 120 can be formed in the second housing 21 and located between the seat 24 and the internal seat 25, and is in communicate with the air flow channel 240 through the gap between the seat 24 and the internal seat 25. The air flow channel 240 may not surround the heater 22, such as the air inlet hole 120 may be formed in a bottom of the second housing 21 and the air flow channel 240 extends in the longitudinal direction and parallel with the longitudinal direction of the heater 22.

[0041] It is appreciated that the technical features described above can be combined in an arbitrary way for use, without being limited.

[0042] It is appreciated that the embodiments provided above illustrate only the preferred embodiments of the present invention and should not be construed as being limitative to limit the patent scope of the present invention. It is noted that for those having ordinary skill in the field, the technical features described above can be freely combined provided they do not depart from the inventive concept of the present invention, and various deformations and improvements can also be made, all these being considered belonging to the scope of protection that the present invention pursues. Thus, equivalent substitutions and modifications, which are made within the scope of the claims of the present invention should be construed falling within the scope of protection of the claims of the present invention.

Claims

1. An aerosol generation device, characterized by comprising a main body (2), an extractor (1) detachably mounted to the main body (2), and a heater (22) mounted to the main body (2), the extractor (1) forming, in an interior thereof, with a receiving space (110) for receiving an aerosol generation substrate (3) therein, the heater (22) comprising a heating section (221) that is insertable into an interior of the aerosol generation substrate (3) received in the receiving space (110);
wherein when the extractor (1) is at a first position, the heating section (221) is capable of heating the aerosol generation substrate (3); and when the extractor (1) is at a second position, the extractor (1) is separated from the main body (2), so as to have the heating section (221) separated from the aerosol generation substrate (3).

2. The aerosol generation device according to claim 1, characterized in that when the extractor (1) is at the first position, the extractor (1) is in contact with the main body (2); and when the extractor (1) is at the second position, the heating section (221) withdraws, at least partly, out of the receiving space (110).

3. The aerosol generation device according to claim 1 or 2, characterized in that the receiving space (110) has a bottom that forms a bottom wall (112) against which the aerosol generation substrate (3) contacts, the bottom wall (112) being formed with an insertion opening (111) through which the heating section (221) is inserted; and when the extractor (1) is at the first position, the heating section (221) is completely inserted into the receiving space (110).

4. The aerosol generation device according to claim 1, characterized in that a shape of the insertion opening (111) corresponds to a cross-sectional shape of the heating section (221), and the heating section (221) is set in clearance fitting inside the insertion opening (111).

5. The aerosol generation device according to claim 1, 2, or 4, characterized in that the heating section (221) is of a form of a plate or a bar, and a sharp guiding structure is provided on an end of the heating section (221) to facilitate insertion into the aerosol generation substrate (3).

6. The aerosol generation device according to claim 3, characterized in that the extractor (1) comprises a first housing (11), and the first housing (11) forms, in an interior thereof, the receiving space (110); and the main body (2) comprises a second housing (21), and the first housing (11) is detachably mounted atop the second housing (21) in a longitudinal direction.

7. The aerosol generation device according to claim 6, characterized in that the extractor (1) further comprises an extraction tube (12) arranged, in the longitudinal direction, inside the first housing (11), the inner wall surface of the extraction tube (12) defining the receiving space (110).

8. The aerosol generation device according to claim 7, characterized in that the extractor (1) further comprises a first magnetic body (13) arranged at a bottom of the first housing (11), and the main body (2) further comprises a second magnetic body (23) arranged at a top of the second housing (21); and when the extractor (1) and the main body (2) are connected, the first magnetic body (13) and the second magnetic body (23) are close to and attract each other.

9. The aerosol generation device according to claim 8, characterized in that a cover (243) in a tubular form is provided on an upper end of the main body (2) to sleeve around the outside of the heating section (221), and the cover (243) is spaced from the inner wall surface of the first housing (11) and the outer wall surface of the extraction tube (12) respectively.

10. The aerosol generation device according to claim 7, characterized in that the extraction tube (12) is integrally extended downward from the top wall of the first housing (11), or the extraction tube (12) and the first housing (11) are separately manufactured and the extraction tube (12) is assembled to the top wall of the first housing (11).

11. The aerosol generation device according to claim 7, characterized in that the extraction tube (12) comprises a stationary tube (121) fixed to the first housing (11) and a movable tube (122) slidably fit, in the axial direction thereof, to the lower end of the stationary tube (121), the stationary tube (121) and the movable tube (122) having inner wall surfaces that jointly define the receiving space (110), the bottom of the movable tube (122) forming the bottom wall (112) and the insertion opening (111).

12. The aerosol generation device according to claim 11, characterized in that a raised platform (1211) is formed by extending outward from the lower end of the stationary tube (121), and a flange (1221) is formed by extending inward from the top of the movable tube (122), the flange (1221) and the raised platform (1211) being engageable with each other so as to have the raised platform (1211) stopped under the flange (1221).

13. The aerosol generation device according to claim 11, characterized in that the main body (2) comprises a fitting section (242), the bottom of the extractor (1) being fit outside the fitting section (242), the fitting section (242) having an axial length that is smaller than or equal to a sliding stroke of the movable tube (122) relative to the stationary tube (121).

14. The aerosol generation device according to claim 11, characterized in that a first snap engagement section is formed on the outside of the top end of the main body (2) and has an axial height that is smaller than the sliding stroke of the movable tube (122) relative to the stationary tube (121), and a second snap engagement section is formed in the inside of the bottom end of the extractor (1) and is snap-engageable with the first snap engagement section.

15. The aerosol generation device according to claim 14, characterized in that the main body (2) comprises a base (241) fit into the top of the second housing (21), the fitting section (242) extending upward from the top wall of the base (241), and a cover (243) extending upward from the top wall of the fitting section (242), and the fitting section (242) has an outer wall surface that forms the first snap engagement section, and the cover (243) encloses the outside of the heating section (221) and is spaced from the inner wall surface of the first housing (11) and the outer wall surface of the extraction tube (12); and
the extractor (1) further comprises a first magnetic body (13) embedded in the bottom of the first housing (11), the first magnetic body (13) forming the second snap engagement section, the main body (2) being provided, in the interior thereof, with a second magnetic body (23) corresponding to the first magnetic body (13).

16. The aerosol generation device according to claim 13, characterized in that with the extractor (1) and the main body (2) being connected, the lower end face of the movable tube (122) abuts against the top wall of the fitting section (242) and the lower end face of the stationary tube (121) abuts against the bottom wall (112).

17. The aerosol generation device according to any one of claims 6-15, characterized in that the main body (2) further comprises a seat assembly fit to the top of the second housing (21) and the heater (22) inserted into the seat assembly, the top end of the heater (22) forming the heating section (221).

18. The aerosol generation device according to claim 17, characterized in that an air flow channel (240) in communication with the receiving space (110) is formed in the seat assembly and surrounds the heater (22), the first housing (11) and/or the second housing (21) being formed with at least one air inlet hole (120) in communication with the air flow channel (240).

Drawing