CN216059235U - Aerosol-generating device and system - Google Patents
Aerosol-generating device and system Download PDFInfo
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- CN216059235U CN216059235U CN202122481689.2U CN202122481689U CN216059235U CN 216059235 U CN216059235 U CN 216059235U CN 202122481689 U CN202122481689 U CN 202122481689U CN 216059235 U CN216059235 U CN 216059235U
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Abstract
The present invention relates to an aerosol-generating device and system, the device comprising: a first housing comprising an outer wall and an inner wall, the first housing being provided with a receiving cavity for receiving an aerosol-generating substrate, at least a portion of the receiving cavity being formed by the inner wall, a first end of the first housing being provided with a first opening for insertion of the aerosol-generating substrate into the receiving cavity, a second end of the first housing being provided with a second opening for insertion of the resistive heating element; a second housing detachably connected to the first housing; the heating assembly comprises an induction coil arranged between the periphery of the accommodating cavity and the outer wall of the first shell, a susceptor arranged in the axial center area of the accommodating cavity, and a resistance heating element arranged in a cavity formed by the accommodating cavity and surrounding the inner wall of the accommodating cavity. By designing the resistive heating element and the susceptor, the utility model can simultaneously carry out internal heating and external heating on the aerosol generating substrate, thereby ensuring the uniformity of heating the aerosol generating substrate.
Description
Technical Field
The present invention relates to the field of novel tobacco technology, and in particular to aerosol generating devices and systems.
Background
The traditional cigarette produces tar and other harmful substances due to the ignition of tobacco, which affects the health of smokers. In order to reduce the generation of these harmful substances, new tobacco products, such as tobacco smoke atomizing electronic cigarettes, heating non-combustion (HNB) tobacco products, and the like, have appeared.
The heating modes of the novel tobacco product include resistance heating, induction heating and the like, and are influenced by the shape, the size and the like of an aerosol generating substrate (for example, a cigarette is not burnt when being heated), the traditional heating mode is usually one of the heating modes of internal heating, external heating and the like of an aerosol generating device, however, the traditional heating mode is difficult to uniformly and fully volatilize aerosol components in the consumable.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide an aerosol-generating device and system that address the problem that aerosol components are difficult to be uniformly and sufficiently volatilized.
An aerosol-generating device, the device comprising:
a first housing comprising an outer wall and an inner wall, wherein a containing cavity for containing an aerosol-generating substrate is arranged in the first housing, at least a part of the containing cavity is formed by the inner wall, a first end of the first housing is provided with a first opening for inserting the aerosol-generating substrate into the containing cavity, and a second end of the first housing is provided with a second opening for inserting the resistance heating element;
a second housing detachably connected to the first housing;
a heating assembly comprising an induction coil between the outer periphery of the receiving cavity and the outer wall of the first housing, a susceptor in an axially central region of the receiving cavity, and a resistive heating element within a cavity formed by the receiving cavity and surrounding an inner wall of the receiving cavity;
a power source housed within the second housing and configured to provide power to the heating assembly;
a controller housed within the second housing and configured to control the supply of power from the power source to the heating assembly.
In one embodiment, the resistive heating element and the susceptor are configured such that when the aerosol-generating substrate is received within the receiving cavity, the resistive heating element is inserted into the aerosol-generating substrate, the susceptor surrounding the aerosol-generating substrate.
In one embodiment, a gap exists between the outer wall and the inner wall of the first shell, and a sleeve is arranged on the second shell near the end which is in fit connection with the first shell, and when the first shell is connected with the second shell, the sleeve extends into the gap.
In one embodiment, the induction coil is disposed between the inner wall and the outer wall of the sleeve, or disposed at the periphery of the sleeve, or disposed within the inner cavity of the sleeve.
In one embodiment, the second end of the outer wall has a first protrusion, and the protrusion direction of the first protrusion is towards the inner wall;
a second bulge is arranged on the end part, far away from the power supply side, of the sleeve, and the bulge direction of the second bulge faces the outer wall;
the first projection and the second projection define a movable range of the first housing.
In one embodiment, the first protrusion and/or the second protrusion have elasticity, so that when the first shell is stressed beyond a threshold value, the first protrusion and/or the second protrusion elastically deforms, and the first shell and the second shell are completely separated.
In one embodiment, the apparatus further comprises:
a thermal insulation member extending along an inner wall of the first housing and disposed between the inner wall and the susceptor;
the side of the insulating member surrounding the susceptor is coated with a reflective layer.
In one embodiment, the induction coils have different pitches, and/or
The first and second regions of the induction coil are formed of different materials.
In one embodiment, the resistive heating elements are needle-shaped, rod-shaped, or sheet-shaped; and/or
The first and second regions of the susceptor have different thermal masses.
An aerosol-generating system, the system comprising:
an aerosol-generating device according to any preceding embodiment; and
an aerosol-generating article comprising an aerosol-generating substrate, and wherein the aerosol-generating article is configured to be at least partially received into a receiving cavity of the aerosol-generating device.
According to the aerosol generating device and the aerosol generating system, the induction coil is arranged between the periphery of the accommodating cavity and the outer wall of the first shell, the susceptor is arranged in the axial central area of the accommodating cavity, and the resistance heating element is arranged in the cavity formed by the accommodating cavity and surrounds the inner wall of the accommodating cavity, so that the aerosol generating substrate can be heated internally and externally at the same time, and the uniformity of heating of the aerosol generating substrate is ensured.
Drawings
Figure 1 is a schematic structural view of a first housing of an aerosol-generating device in one embodiment;
figure 2 is a schematic diagram of the overall structure of an aerosol-generating device according to one embodiment;
figure 3 shows a schematic view of the overall structure of an aerosol-generating device according to another embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 3, fig. 1 shows a schematic cross-sectional structure of a first housing 210 of an aerosol-generating device 200 according to an embodiment of the present invention, and fig. 2 and 3 show schematic cross-sectional structures of the aerosol-generating device 200 according to two different embodiments.
An aerosol-generating device is provided according to an embodiment of the present invention, comprising a first housing 210, a second housing 220 detachably connected to the first housing 210, a heating assembly, a power source (not shown) and a controller (not shown). Wherein the power supply and the controller are all accommodated in the second housing 220, and part of the components of the heating assembly are fixed on the first housing 210, and the other part of the components are fixedly arranged on the second housing 220. The power source, controller and heating assembly are electrically connected, the power source is used for providing power to the heating assembly, such as providing current or voltage; the controller is used to control the flow of electrical power through the heating assembly such that the resistive heating element 232, susceptor 233 is suitably heated such that the smokable substance of the consumable contained in the aerosol-generating device 200 is volatilised but not ignited.
The consumable in the present invention may comprise, among other things, an aerosol-generating substrate 100. The aerosol-generating substrate 100 may comprise a homogenized tobacco material, an aerosol former, an e-cigarette oil or the like. The aerosol-generating substrate 100 preferably comprises homogenised tobacco material, an aerosol former and water. Providing a homogenised tobacco material may improve the aerosol generation, nicotine content and flavour characteristics of an aerosol generated during heating of the aerosol-generating article.
As shown in fig. 1, the first housing 210 comprises an outer wall 211 and an inner wall 212, both ends of which are provided with openings (216 and 217), and a receiving cavity 215 for receiving an aerosol-generating substrate. Wherein at least a portion of the receiving cavity 215 is formed by the inner wall 212. A first opening 216 of the first housing 210 at the first end for insertion of the aerosol-generating substrate and for at least a portion of the aerosol-generating substrate to be received within the receiving cavity 215; a second opening 217 at the second end of the first housing 210 is used to insert a resistive heating element of the heating assembly such that at least a portion of the resistive heating element is also received within the receiving cavity. The first opening 216 may have a circular cross-sectional shape, and likewise, the receiving cavity may have a cylindrical cross-sectional shape, and the size of the opening of the first opening 216 may be greater than or equal to the size of the receiving cavity, so that a cigarette rod can be received in the receiving cavity 215 through the opening 216. The shape and size of the second opening 217 match the shape of the resistive heating element.
The shape of the first housing 210 may be a substantially cylindrical shape, an elliptic cylindrical shape, a polygonal shape, or any other suitable shape, such as a quadrangular, pentagonal, hexagonal, or other cross-sectional shape having a certain lead angle.
In one embodiment, the first housing 210 further includes a top wall 213 at the first end, the top wall 213 connecting the outer wall 211 and the inner wall 212, and a transversely extending bottom wall 214 at the second end of the inner wall 212, the second opening being formed by the bottom wall 214. The bottom wall 214 may be used to define an insertion location for the aerosol-generating substrate.
In one embodiment, the side of the bottom wall 214 facing the first opening may be non-flat, e.g. may have protrusions, grooves or raised lines thereon, which may facilitate the formation of an air gap when the aerosol-generating substrate is inserted into a predetermined position and contacts the bottom wall, thereby allowing a user to have sufficient airflow through the aerosol-generating substrate during inhalation.
In one embodiment, the outer wall 211, the inner wall 212, the top wall 213, and the bottom wall 214 of the first housing 210 are integrally formed.
In one embodiment, as shown in FIG. 2, the heating assembly includes an induction coil 231, a resistive heating element 232, and a susceptor 233. Wherein the induction coil 231 is located between the outer periphery of the receiving cavity 215 and the outer wall 211 of the first housing 210, and the resistive heating element 232 and the susceptor 233 are both located within the receiving cavity 215. In particular, the resistive heating element 232 is located in a circumferentially central region of the housing chamber 215, coinciding with the axis of the housing chamber; the susceptor 33 is within the cavity of the receiving chamber and surrounds the inner wall 212 of the receiving chamber.
In an embodiment, the resistive heating element 232 and the susceptor 233 are configured such that when the aerosol-generating substrate 100 is received within the receiving cavity, the resistive heating element 232 is inserted into the aerosol-generating substrate 100 and the susceptor 233 surrounds the aerosol-generating substrate 100.
In one embodiment, the induction coil 231 is energized with an alternating current to produce an alternating magnetic field, and the susceptor 233 is heated by penetration of the varying magnetic field. The resistance heating element 232 is electrically connected to the controller, and the controller controls the current or voltage flowing into the resistance heating element 232, so that the resistance heating element 232 is heated.
The insertion end of the resistive heating element 232 is a pointed end and may be in the form of a needle, rod or sheet of any shape suitable for insertion into an aerosol-generating substrate 100, such as a cigarette rod, the resistive heating element 232 comprising an insulating substrate that is thermally conductive, electrically conductive metal filaments printed or coated on the substrate to effect internal heating of the aerosol-generating substrate. The susceptor 233 may be cylindrical in shape and may surround the outer circumference of the aerosol-generating substrate 100 (e.g. a cigarette rod) to enable external or circumferential heating of the aerosol-generating substrate.
In the above scheme, by designing the resistive heating element and the susceptor, the aerosol-generating substrate can be heated internally and externally at the same time, ensuring uniformity of heating of the aerosol-generating substrate.
In one embodiment, the second housing 220 is provided with a sleeve 221 near the end that engages the first housing 210, and the second housing 220 is further provided with a button 223 for controlling the opening and closing operation of the aerosol-generating device 200. A gap exists between the outer wall 211 and the inner wall 212 of the first housing 210, into which gap the sleeve 221 extends when the first housing 210 and the second housing 220 are engaged with each other.
In one embodiment, the induction coil 231 and the resistive heating element 232 of the heating assembly are secured to the second housing 220, while the susceptor 233 is secured to the first housing 210. Specifically, the induction coil 231 is fixedly connected to the sleeve 221, and can be fixed in the hollow housing of the sleeve 221, so that the sleeve 221 can protect the induction coil and prevent the induction coil from being worn during the relative movement between the sleeve 221 and the first housing 210.
In another embodiment, the induction coil 231 may be fixedly disposed on the outer periphery of the sleeve 221, or fixedly disposed on the inner cavity of the sleeve 221. Wherein the location on the outer periphery or inner cavity of the sleeve 221 provides the advantage of ease of installation while also facilitating replacement. Specifically, a groove may be formed at a portion of the outer periphery or inner cavity of the sleeve 221, which is engaged with the coil, and the induction coil 231 is disposed in the groove, thereby further improving the tightness of the connection of the induction coil 231 with the sleeve 221.
In one embodiment, the second end (the end engaged with the second housing) of the outer wall 211 has a first protrusion 218, the protrusion direction of the first protrusion 218 is toward the inner wall; a second protrusion 222 is arranged on the end part of the sleeve 221 away from the power supply side, and the protrusion direction of the second protrusion 222 faces the outer wall; the first and second protrusions 218 and 222 define a movable range of the first housing 210.
Specifically, the second end of the outer wall 211 is provided with a ring of protrusions 218 towards the inner side thereof, the sleeve 221 is provided with a ring of protrusions 222 towards the inner side thereof on the side thereof away from the power supply, and the protrusions 218 on the outer wall 211 and the protrusions 222 on the sleeve 221 define the range of motion of the first housing 210 and the second housing 220, so that the first housing 210 can only move between a first position (where the second protrusions 222 are close to the top wall or where the first protrusions 218 are close to the end of the sleeve on the side close to the power supply) and a second position (where the first housing is located when the first protrusions 218 are in contact with the second protrusions 222) without external force.
Wherein, in the first position, the resistive heating element 232 is inserted into the aerosol-generating substrate 100; after the aerosol-generating substrate has been drawn by the user, the first housing 210 is moved from the first position to the second position, the aerosol-generating substrate is conveniently pulled out of the housing by being separated from the resistive heating element 232 by the support of the bottom wall 214, and the first housing 210 is returned to the first position by gravity after the user releases the first housing 210. By providing the first protrusion 218 and the second protrusion 222, it is possible to prevent the first housing and the second housing from being completely disconnected, thereby preventing the first housing from being lost due to an accident.
In one embodiment, the first protrusion 218 and/or the second protrusion 222 may have elasticity, such that when the force applied to the first housing 210 exceeds a threshold value, the first protrusion 218 and/or the second protrusion 222 is elastically deformed, and the first housing 210 and the second housing 220 are completely separated. The first protrusion 218 and/or the second protrusion 222 may be made of any metal or non-metal elastic material, such as metal spring, or rubber. Thus, when a user pulls the first housing 210 with a certain force, the first housing 210 may be detached from the second housing 220, so that the susceptor 233 on the first housing 210 or the resistive heating element 232 or the induction coil 231 on the second housing 220 may be replaced.
In an embodiment, the aerosol-generating device further comprises a thermal insulation member 240, the thermal insulation member 240 being arranged between the inner wall 212 of the first housing 210 and the susceptor 233 and extending along the inner wall 212 of the first housing 210. The heat insulation member 240 serves to insulate the resistance heating element 232 and the susceptor 233 from heat generated by the induction heating to be conducted to the outer wall 211 of the first housing 210, causing the user to feel hot and thus affecting the user's experience.
In one embodiment, the thermal insulation member 240 may be made of one or more of a porous material, a heat reflective material, a vacuum material, and the like. For example, the insulating member 240 may be one or more layers of asbestos located between the susceptor 233 and the inner wall 212, or may be an insulating member having a vacuum or near vacuum that may be further filled with a material that conducts heat inefficiently to further reduce heat conduction.
In one embodiment, the side of the thermal insulation member 240 surrounding the susceptor 233 is further coated with a reflective layer for reflecting heat generated by heating of the susceptor 233 into the receiving cavity 215 while also reducing conduction of heat to the outer wall 211.
In one embodiment, the induction coils 231 have different pitches. In particular, the induction coil 231 may be divided into different regions in the axial direction, such as 2 regions or 3 regions, etc., and the spacing between adjacent regions may be different, which may cause the magnetic fields generated by the different regions to be different, which may in turn cause the corresponding regions of the susceptor 233 to be heated at different rates and/or temperatures, which may cause the corresponding regions of the aerosol-generating substrate to be heated differently. For example, the induction coil 231 may be divided into an upper region (i.e. a first region) which is away from the second housing 220 and a lower region (i.e. a second region) which is close to the second housing 220, the first region having a shorter coil pitch than the second region, so that the lower region of the aerosol-generating substrate can be heated rapidly, and the upper region can be heated relatively slowly, so that the user can first puff the volatilized aerosol on the lower region, and can then puff the volatilized aerosol after the volatilized aerosol in the lower region is volatilized, so as to maintain the uniformity of the volatilized aerosol as much as possible.
In one embodiment, the first and second regions of the induction coil 231 are formed of different materials. Also causing the induction coil 231 to have different heating characteristics. For example, a first region of the induction coil 231 (the upper half region remote from the second housing) may be made of a material having a lower electrical resistance than the material from which a second region of the induction coil 231 (the lower half region proximate to the second housing) is made. Thus in actual operation, the resistive heating element 232 and the second region of the susceptor 233 may be heated to a higher heating rate or temperature than the first region, again ultimately resulting in a relatively uniform rate of evaporation of the aerosol.
In one embodiment, the first and second regions of the susceptor 233 have different thermal masses.
In particular, the thermal mass of a susceptor is proportional to its weight times its heat capacity (the ability of the body to store thermal energy). Susceptors having different thermal masses when the susceptor has a different weight or density and/or a different heat capacity. The different thermal masses of the two regions of the susceptor 233 cause them to heat at different rates when penetrated by the varying magnetic field.
In one embodiment, the first region of the susceptor 233 (the region distal from the upper half of the second shell) is composed of a different material or density, or has a different thickness, than the second region (the region proximal to the lower half of the second shell), respectively, such that the two regions have different thermal masses. For example, one of the first and second regions of the susceptor 233 may be made of soft iron and the other of stainless steel.
In particular, the first region of the susceptor 233 has a smaller thermal mass than the second region, such as the resistive heating element 232 and/or the first region of the susceptor 233 has a smaller thickness than the second region, such that the first region can be heated at a greater rate than the second region by penetration with a given varying magnetic field, again ultimately resulting in a relatively uniform volatilization rate of the aerosol.
In one embodiment, there is provided an aerosol-generating system comprising the aerosol-generating device 200 of any of the embodiments above, further comprising an aerosol-generating article 100, the aerosol-generating article 100 comprising an aerosol-generating substrate, and wherein the aerosol-generating article is configured to be at least partially received into a receiving cavity of the aerosol-generating device. In particular, the aerosol-generating substrate is a heated non-burning tobacco rod for use with an aerosol-generating device.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An aerosol-generating device, the device comprising:
a first housing comprising an outer wall and an inner wall, wherein a containing cavity for containing an aerosol-generating substrate is arranged in the first housing, at least a part of the containing cavity is formed by the inner wall, a first end of the first housing is provided with a first opening for inserting the aerosol-generating substrate into the containing cavity, and a second end of the first housing is provided with a second opening for inserting the resistance heating element;
a second housing detachably connected to the first housing;
a heating assembly comprising an induction coil between the outer periphery of the receiving cavity and the outer wall of the first housing, a susceptor in an axially central region of the receiving cavity, and a resistive heating element within a cavity formed by the receiving cavity and surrounding an inner wall of the receiving cavity;
a power source housed within the second housing and configured to provide power to the heating assembly;
a controller housed within the second housing and configured to control the supply of power from the power source to the heating assembly.
2. A device according to claim 1, wherein the resistive heating element and the susceptor are configured such that when the aerosol-generating substrate is received within the receiving cavity, the resistive heating element is inserted into the aerosol-generating substrate, the susceptor surrounding the aerosol-generating substrate.
3. The device of claim 1, wherein a gap exists between the outer wall and the inner wall of the first housing, and wherein a sleeve is provided on the second housing near an end of the second housing that is in mating engagement with the first housing, the sleeve extending into the gap when the first housing is engaged with the second housing.
4. The device of claim 3, wherein the induction coil is disposed between an inner wall and an outer wall of the sleeve, or
Arranged on the periphery of said sleeve, or
Is arranged in the inner cavity of the sleeve.
5. The device of claim 3, wherein the second end of the outer wall has a first protrusion, the first protrusion being directed toward the inner wall;
a second bulge is arranged on the end part, far away from the power supply side, of the sleeve, and the bulge direction of the second bulge faces the outer wall;
the first projection and the second projection define a movable range of the first housing.
6. The device of claim 5, wherein the first protrusion and/or the second protrusion are resilient such that when the first housing is forced beyond a threshold value, the first protrusion and/or the second protrusion elastically deform and the first housing and the second housing completely separate.
7. The apparatus of claim 1, further comprising:
a thermal insulation member extending along an inner wall of the first housing and disposed between the inner wall and the susceptor;
the side of the insulating member surrounding the susceptor is coated with a reflective layer.
8. The device according to claim 1, wherein the induction coils have different pitches, and/or
The first and second regions of the induction coil are formed of different materials.
9. The device of claim 1, wherein the resistive heating elements are needle-shaped, rod-shaped, or sheet-shaped; and/or
The first and second regions of the susceptor have different thermal masses.
10. An aerosol-generating system, the system comprising:
an aerosol-generating device according to one of the preceding claims; and
an aerosol-generating article comprising an aerosol-generating substrate, and wherein the aerosol-generating article is configured to be at least partially received into a receiving cavity of the aerosol-generating device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122481689.2U CN216059235U (en) | 2021-10-14 | 2021-10-14 | Aerosol-generating device and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122481689.2U CN216059235U (en) | 2021-10-14 | 2021-10-14 | Aerosol-generating device and system |
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| CN216059235U true CN216059235U (en) | 2022-03-18 |
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| CN202122481689.2U Active CN216059235U (en) | 2021-10-14 | 2021-10-14 | Aerosol-generating device and system |
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