CN216568344U - Aerosol generating device - Google Patents

Abstract

The utility model relates to an aerosol generating device. The magnetic attraction plate comprises a main body, a magnetic attraction plate, an inner support bracket and an upper cover assembly, wherein a first magnetic part and an insertion cavity are arranged at the upper end of the main body; the magnetic suction plate can be arranged at the upper end of the main body in a vertically sliding manner between a first position and a second position; the upper end of the inner support bracket is connected with the magnetic attraction plate, and the lower end of the inner support bracket is inserted in the insertion cavity and can slide up and down in the insertion cavity along with the up-and-down sliding of the magnetic attraction plate; an accommodating cavity for accommodating the aerosol-forming substrate is formed at the opening at the top end of the inner support bracket; sliding mounting is to main part upper end from top to bottom to upper cover subassembly detachable, is equipped with the second magnetic part that is used for adsorbing the magnetic attraction board in it, and the magnetic attraction of second magnetic part to the magnetic attraction board is greater than the magnetic attraction of first magnetic part to the magnetic attraction board to make the upper cover subassembly can drive the magnetic attraction board and slide between primary importance and second place, so can guarantee that the interior support of high temperature state can't contact with the human body.

Description

Aerosol generating device

Technical Field

The utility model belongs to the technical field of electronic atomization, and particularly relates to an aerosol generating device.

Background

In the low-temperature non-combustible aerosol generating device, an extraction mode after the aerosol forming substrate is used is a problem to be considered in product design, and a good extraction mode can bring better physical examination for a user. At present, the inner support bracket and the upper cover assembly are fixed together in an aerosol-forming substrate extraction mode, and after the aerosol-forming substrate is used, the upper cover assembly is pulled out of the main body, so that the aerosol-forming substrate in the inner support bracket moves along with the upper cover assembly, and the purpose of separating the aerosol-forming substrate from the heating body is achieved. However, because the inner support bracket is close to the heating element, the temperature of the inner support bracket after the suction is finished can often reach more than 100 degrees, and if the inner support bracket is pulled out along with the upper cover component, the inner support bracket is easy to contact with a human body to cause scald.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the defects in the prior art to a certain extent and provides an aerosol generating device.

To achieve the above object, the present invention provides an aerosol generating device comprising:

the heating device comprises a main body, wherein the upper end of the main body is provided with a first magnetic piece and an insertion cavity, and the bottom of the insertion cavity is provided with a heating body;

the magnetic suction plate is arranged at the upper end of the main body in a manner of sliding up and down between a first position and a second position;

the upper end of the inner support bracket is connected with the magnetic suction plate, and the lower end of the inner support bracket is inserted into the insertion cavity and can slide up and down in the insertion cavity along with the up-and-down sliding of the magnetic suction plate; an accommodating cavity for accommodating aerosol-forming substrates is formed in an opening at the top end of the inner support bracket, a through hole communicated with the accommodating cavity is formed in the bottom wall of the inner support bracket, and the upper end of the heating element is inserted into the accommodating cavity through the through hole and is used for penetrating the aerosol-forming substrates accommodated in the accommodating cavity;

the upper cover assembly is detachably mounted on the upper end of the main body in a vertically sliding manner, a second magnetic part for adsorbing the magnetic attraction plate is arranged in the upper cover assembly, and the magnetic attraction force of the second magnetic part to the magnetic attraction plate is greater than the magnetic attraction force of the first magnetic part to the magnetic attraction plate, so that the upper cover assembly can drive the magnetic attraction plate to slide between the first position and the second position; the upper cover assembly is provided with a first insertion hole correspondingly communicated with the accommodating cavity;

when the pulling force applied to the upper cover assembly is greater than the suction force of the first magnetic piece to the magnetic attraction plate, the upper cover assembly can drive the magnetic attraction plate to move from the first position to the second position through the magnetic attraction force of the second magnetic piece, and then the inner support is driven to move upwards for the same distance.

Optionally, the upper cover assembly is detachably connected with the main body through a magnetic adsorption effect between the second magnetic piece and the magnetic attraction plate; when the upper cover assembly drives the magnetic attraction plate to move to the second position and the received pulling force is greater than the magnetic attraction force of the second magnetic piece on the magnetic attraction plate, the upper cover assembly is separated from the main body and the magnetic attraction plate.

Optionally, the upper cover assembly includes a cover body which can be covered on the main body in a vertically sliding manner and a liner which is arranged in the lower end of the cover body, and the second magnetic member is fixedly arranged between the cover body and the liner; the cover body is provided with the first insertion hole, the lining is provided with a mounting hole coaxially communicated with the first insertion hole, and the diameter of the mounting hole is larger than the outer diameter of the inner support bracket; when the upper cover assembly is mounted to the main body, the upper end of the inner bracket is coupled to the mounting hole.

Optionally, a first stopping convex ring is formed at the lower end of the mounting hole in a protruding manner towards the center direction, an annular third magnetic member is supported and arranged in the mounting hole through the first stopping convex ring, and the inner diameter of the third magnetic member is matched with the outer diameter of the inner support bracket.

Optionally, the cover body is further provided with a cover which can move between an opening position and a closing position, and when the cover is located at the closing position, the cover covers the first insertion hole; the first insertion hole is exposed when the cover is moved from the closed position to the open position.

Optionally, a through hole is formed in the position, corresponding to the inserting cavity, of the magnetic attraction plate, and a second stopping convex ring is formed at the upper end of the inner support bracket in a protruding mode; the lower end of the inner support bracket is inserted into the inserting cavity through the through hole and is supported and hung on the magnetic suction plate through the second stopping convex ring, so that the magnetic suction plate can synchronously drive the inner support bracket to move upwards when moving upwards from the first position to the second position.

Optionally, a projection is arranged on the outer wall of the inner support bracket below the second stopping convex ring, and the magnetic suction plate is sleeved outside the inner support bracket through the through hole and is located between the second stopping convex ring and the projection; and when the inner support bracket moves upwards until the convex block abuts against the magnetic suction plate and the applied pulling force is greater than the maximum abutting acting force between the convex block and the inner wall of the through hole, the inner support bracket is pulled out of the through hole.

Optionally, the maximum abutting acting force between the bump and the inner wall of the through hole is smaller than the magnetic attraction force of the first magnetic member to the magnetic attraction plate.

Optionally, the main body includes a housing, and a mounting bracket and a face cover disposed in an upper end of the housing, and the first magnetic member is fixedly disposed between the mounting bracket and the face cover; the mounting bracket is provided with a sleeve forming the splicing cavity, the lower end of the heating body is fixed on the bottom wall of the sleeve, and the top end of the mounting bracket is provided with a fixed cover of the surface cover and is provided with a second insertion hole communicated with the splicing cavity correspondingly.

Optionally, the sleeve is further wound with a magnetic induction coil, and the magnetic induction coil is used for generating an alternating magnetic field in the insertion cavity, so that the heating body generates heat under the action of the alternating magnetic field.

Optionally, the magnetic attraction plate is further connected with a guide column, and the lower end of the guide column is connected to the mounting frame and the face cover in a vertically sliding manner.

According to the aerosol-forming substrate provided by the utility model, after the aerosol-forming substrate is sucked, the upper cover component is pulled upwards, the magnetic suction plate and the inner support bracket are driven to move upwards for a certain distance through the magnetic suction effect, at the moment, the aerosol-forming substrate can be easily taken out of the accommodating cavity, the upper cover component and the inner support bracket are not separated from the main body part, and the inner support bracket in a high-temperature state cannot be contacted with a human body, so that the risk of scalding a user is avoided. When the aerosol-forming substrate is pulled out, the upper cover assembly can be restored to the initial state under the action of gravity and the attraction of the first magnetic piece only by loosening the pull force on the upper cover assembly, and the use is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an exploded schematic view of an embodiment of an aerosol generating device according to the present invention;

FIG. 2 is a schematic cross-sectional view of an aerosol generating device of the present invention;

FIG. 3 is a schematic view of an aerosol generating device of the present invention in an initial state;

FIG. 4 is a schematic view of an aerosol generating device of the present invention in an extracted state;

FIG. 5 is a schematic view of an aerosol generating device of the present invention with the upper lid assembly separated from the magnetic attraction plate;

FIG. 6 is a schematic view of an aerosol generating device of the present invention with the cover assembly removed;

FIG. 7 is a schematic view of the inner bracket of FIG. 6 with the inner bracket removed;

description of the main elements:

100. a main body; 10. a housing; 11. a guide groove; 20. a mounting frame; 21. a sleeve; 22. an insertion cavity; 23. a magnetic induction coil; 24. a magnetic shield sheet; 25. a guide hole; 30. a face cover; 31. a limiting hole; 32. a second insertion hole; 40. a heating element; 50. a power supply; 51. a power supply bracket; 60. a control circuit board; 61. a circuit board holder; 62. a control key; 70. a first magnetic member;

200. a magnetic attraction plate; 201. a through hole; 202. a guide post;

300. an inner support bracket; 301. an accommodating cavity; 302. a through hole; 303. a second stop collar; 304. a bump;

400. an upper cover assembly; 401. a cover body; 4011. a first insertion hole; 4012. a guide plate; 402. a liner; 4021. mounting holes; 4022. a first stopper convex ring; 403. a second magnetic member; 404. a third magnetic member; 405. sealing the cover; 406. a slider;

500. an aerosol-forming substrate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present invention and should not be construed as limiting the present invention, and all other embodiments that can be obtained by one skilled in the art based on the embodiments of the present invention without inventive efforts shall fall within the scope of protection of the present invention.

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," "circumferential," "radial," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention 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 construed as limiting the present invention.

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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1-2, an aerosol generating device according to an embodiment of the present invention includes a main body 100, a magnetic attraction plate 200, an inner support frame 300, and a cover assembly 400.

The main body 100 comprises a shell 10, a heating body 40 arranged in the shell 10, a mounting frame 20, a face cover 30, a power supply 50, a power supply bracket 51, a control circuit board 60 and a circuit board bracket 61; the power supply 50 is fixedly arranged inside the shell 10 through a power supply bracket 51; the circuit board support 61 is positioned at the other side of the power supply 50 relative to the power supply support 51 and is mutually fixed with the power supply support 51 so as to clamp and fix the power supply 50 between the power supply support 51 and the circuit board support 61, the control circuit board 60 is fixedly arranged at the other side of the circuit board support 61 relative to the power supply 50, and a control key 62 connected with the control circuit board 60 is arranged at the position of the shell 10 corresponding to the control circuit board 60; the mounting bracket 20 is fixed in the upper end of the casing 10, preferably, the lower end thereof is fixed in the upper end of the circuit board support 61, and the mounting bracket 20 has a sleeve 21 forming an insertion cavity 22, the heating element 40 is installed in the insertion cavity 22, and the lower end thereof is fixed in the bottom wall of the sleeve 21; the upper end of the plugging chamber 22 is an open end, and the surface cover 30 is fixedly covered on the top end of the mounting frame 20 and is provided with a second insertion hole 32 correspondingly communicated with the plugging chamber 22.

Preferably, in this embodiment, the sleeve 21 is further wound with a magnetic induction coil 23, the magnetic induction coil 23 is electrically connected to the control circuit board 60, and the control circuit board 60 controls the power supply 50 to supply power to the magnetic induction coil 23, so that the magnetic induction coil 23 generates an alternating magnetic field in the inserting cavity 22, and the heating element 40 generates heat under the action of the alternating magnetic field; in this embodiment, the magnetic shield sheet 24 is provided around the magnetic induction coil 23 to prevent the magnetic field from affecting the electronic components in the main body 100. In other embodiments, the heating element 40 can also be electrically connected to the control circuit board 60, and the control circuit board 60 controls the power supply 50 to directly supply power to the heating element 40, so that the heating element 40 is powered on to generate heat, i.e. the magnetic induction coil 23 is not required to be arranged. The present invention is not particularly limited to the heating method of the heating element 40.

A first magnetic member 70 is further fixedly disposed between the mounting frame 20 and the face cover 30, the magnetic attraction plate 200 is disposed at the upper end of the main body 100 in a manner of sliding up and down between a first position and a second position, and is attracted by the first magnetic member 70 and attached to the face cover 30, and at this time, the magnetic attraction plate 200 is located at the first position. Specifically, the top of the mounting bracket 20 is provided with a guide hole 25, the face cover 30 is provided with a limiting hole 31 communicated with the guide hole 25, the guide hole 25 is internally connected with a guide column 202 in a vertical sliding manner, the upper end of the guide column 202 passes through the limiting hole 31 to be fixedly connected with the magnetic attraction plate 200, the lower end of the guide column is protruded to form a limiting part, and the outer diameter of the limiting part is larger than the aperture of the limiting hole 31 to prevent the guide column 202 from sliding out of the limiting hole 31, so that the magnetic attraction plate 200 is limited to move between a first position and a second position; in this embodiment, the housing 10 further forms a receiving cavity above the surface cover 30, and the magnetic attraction plate 200 and the receiving cavity can define a guiding structure therein, so that the magnetic attraction plate 200 can slide up and down in the receiving cavity in a horizontal state. In other embodiments, the accommodating cavity is not provided, and a plurality of guide posts are provided to ensure that the magnetic attraction plate 200 is kept horizontal during the up-and-down movement.

The inner support bracket 300 is a cup-shaped structure with an open top end, so that a containing cavity 301 for containing the aerosol-forming substrate 500 is formed, and the bottom wall of the inner support bracket is provided with a through hole 302 communicated with the containing cavity 301; the upper end of the inner support bracket 300 is connected to the magnetic attraction plate 200, and the lower end is inserted into the insertion cavity 22 and can slide up and down in the insertion cavity 22 along with the up-and-down sliding of the magnetic attraction plate 200; the upper end of the heat-generating body 40 is inserted into the receiving chamber 301 through the through-hole 302 to pierce the aerosol-forming substrate 500 received in the receiving chamber 301. When the magnetic attraction plate 200 is located at the first position, the bottom wall of the inner support bracket 300 is attached to the bottom wall of the insertion cavity 22 or has a gap, and most of the heating element 40 is inserted into the accommodation cavity 301 so as to be in full contact with the aerosol-forming substrate 500 accommodated in the accommodation cavity 301; when the magnetic attraction plate 200 is located at the second position, the bottom wall of the inner support bracket 300 and the bottom wall of the insertion cavity 22 have a certain interval, and at this time, the heating element 40 is partially or completely pulled out of the accommodating cavity 301. When the magnetic attraction plate 200 moves from the first position to the second position, the inner holder 300 moves away from the heating element 40 (i.e., slides upward), thereby driving the aerosol-forming substrate 500 received in the receiving cavity 301 to move upward for a distance (i.e., a stroke between the first position and the second position) such that the upper end of the heating element 40 is pulled out of at least a portion of the aerosol-forming substrate 500, thereby facilitating the smooth pulling out of the aerosol-forming substrate 500 from the receiving cavity 301.

It should be noted that the shape of the through hole 302 is adapted to the cross-sectional shape of the heating element 40, and when the inner holder 300 slides up and down in the insertion cavity 22, the heating element 40 always substantially blocks the through hole 302, so as to reduce the dropping of the tobacco shreds, scraps and other substances dropped from the aerosol-forming substrate 500 into the insertion cavity 22 through the through hole 302. Preferably, in the present embodiment, the heating element 40 has a needle-like structure, and the corresponding through hole 302 is a circular hole, so that the inner holder 300 can rotate circumferentially; in other embodiments, the heat-generating bodies 40 may be sheet-like bodies, and the number of the heat-generating bodies 40 may be two or more.

The upper cover assembly 400 is detachably mounted on the upper end of the main body 100 in a sliding manner, and a second magnetic member 403 for adsorbing the magnetic attraction plate 200 is arranged in the upper cover assembly 400, and the magnetic attraction force of the second magnetic member 403 to the magnetic attraction plate 200 is greater than the magnetic attraction force of the first magnetic member 70 to the magnetic attraction plate 200, so that the upper cover assembly 400 can drive the magnetic attraction plate 200 to slide between the first position and the second position; the upper cover assembly 400 is provided with a first insertion hole 4011 correspondingly communicated with the receiving chamber 301.

When the aerosol generating device is used, in an initial state, the magnetic attraction plate 200 is located at a first position, the aerosol-forming substrate 500 is inserted into the receiving cavity 301 through the first insertion hole 4011, the heating element 40 is inserted into the aerosol-forming substrate 500 from the bottom end of the aerosol-forming substrate 500, and then the aerosol-forming substrate 500 is heated and atomized by the heating element 40 to form aerosol which can be inhaled by a user; after the aerosol-forming substrate 500 is completely sucked, the upper cover assembly 400 is pulled upwards by using a pulling force exceeding the suction force of the first magnetic member 70 on the magnetic suction plate 200, so that the magnetic suction plate 200 is driven to move from the first position to the second position by the magnetic suction force of the second magnetic member 403, and meanwhile, the magnetic suction plate 200 drives the inner support bracket 300 to move upwards for the same distance, and in the process, the heating element 40 withdraws from the aerosol-forming substrate 500 for the same distance, as shown in fig. 4, the aerosol generating device is in a withdrawing state, so that the aerosol-forming substrate 500 can be easily withdrawn from the accommodating cavity 301 in the state, the upper cover assembly 400 is not partially separated from the main body 100, and the inner support bracket 300 in a high-temperature state cannot be contacted with a human body, so that the risk of scalding of a user is avoided; when the aerosol-forming substrate 500 is pulled out, the lid assembly 400 returns to the initial state shown in figure 3 by gravity and the attractive force of the first magnetic member 70 simply by releasing the pulling force on the lid assembly 400.

In addition, as shown in fig. 5, the upper cover assembly 400 of the present embodiment is detachably connected to the main body 100 through the magnetic attraction between the second magnetic member 403 and the magnetic attraction plate 200; when the upper cover assembly 400 drives the magnetic attraction plate 200 to move to the second position and the received pulling force is greater than the magnetic attraction force of the second magnetic member 403 to the magnetic attraction plate 200, the upper cover assembly 400 is separated from the main body 100 and the magnetic attraction plate 200, and the magnetic attraction plate 200 and the inner support bracket 300 return to the initial position again due to the gravity and the attraction force of the first magnetic member 70, as shown in fig. 6, so that the inner support bracket 300 remains in the plug cavity 22 of the main body 100 when the upper cover assembly 400 is completely pulled out, the inner support bracket 300 is prevented from being pulled out of the plug cavity 22 along with the movement of the upper cover assembly 400, and the receiving cavity 301 of the inner support bracket 300 can be cleaned conveniently.

In one embodiment, the upper cover assembly 400 includes a cover 401 slidably covering the main body 100 up and down and a liner 402 disposed in a lower end of the cover 401, and the second magnetic member 403 is fixed between the cover 401 and the liner 402; the cover body 401 is provided with a first insertion hole 4011, the lining 402 is provided with a mounting hole 4021 coaxially communicated with the first insertion hole 4011, and the aperture of the mounting hole 4021 is larger than the outer diameter of the inner support bracket 300; when the upper cover assembly 400 is mounted to the main body 100, the upper end of the inner bracket 300 is coupled to the mounting hole 4021.

Specifically, guide grooves 11 are respectively formed in positions of two corresponding side walls of the housing 10, two corresponding sides of the cover 401 respectively protrude downward and extend to form guide plates 4012 matched with the guide grooves 11, and the cover 401 is mounted on the housing 10 through matching of the guide plates 4012 and the guide grooves 11; preferably, the guide grooves 11 extend to the position of the mounting frame 20, first clamping parts are respectively formed in the two opposite sides of the mounting frame 20 in a protruding manner corresponding to the positions of the guide grooves 11, second clamping parts matched with the first clamping parts are respectively formed in the opposite inner sides of the two guide plates 4012 in a protruding manner, and the opposite inner sides of the first clamping parts and the second clamping parts are both arc surfaces; when the upper cover assembly 400 drives the magnetic attraction plate 200 to move to the second position, the second retaining part abuts against the lower side of the first retaining part, and when the upper cover assembly 400 is separated from the magnetic attraction plate 200, the second retaining part can pass over the first retaining part to separate the cover body 401 from the main body 100. Moreover, when the upper cover assembly 400 needs to be installed, only the guide plate 4012 of the upper cover assembly 400 needs to be inserted into the guide groove 11 until the bottom surface of the lining 402 is attached to the magnetic attraction plate 200, so that the second magnetic member 403 is attracted to the magnetic attraction plate 200, and the detachable connection between the upper cover assembly 400 and the main body 100 is realized again, so that the upper cover assembly 400 and the main body 100 can be detached and installed more conveniently, stably and reliably.

In one embodiment, as shown in fig. 4 and 5, a first stopping protrusion ring 4022 is formed at the lower end of the mounting hole 4021 and protrudes toward the center, an annular third magnetic member 404 is supported in the mounting hole 4021 through the first stopping protrusion ring 4022, and the inner diameter of the third magnetic member 404 is matched with the outer diameter of the inner holder 300. That is, when the cover assembly 400 is mounted on the main body 100, the third magnetic member 404 also has a magnetic attraction force to the magnetic attraction plate 200; when the upper cover assembly 400 moves upwards, the magnetic attraction plate 200 is driven to move from the first position to the second position by the common attraction of the first magnetic member 70 and the second magnetic member 403, and the magnetic attraction plate 200 is ensured not to deform during the movement, so that the thickness of the magnetic attraction plate 200 can be made thinner.

In one embodiment, the cover 401 is further provided with a cover 405 movable between an open position and a closed position, and when the cover 405 is located at the closed position, the cover 405 covers the first insertion hole 4011; when the cover 405 is moved from the closed position to the open position, the first insertion hole 4011 is exposed. Specifically, a slider 406 movable in a direction close to and away from the first insertion hole 4011 is further provided between the cover 401 and the liner 402, and the cover 405 is fixedly connected to the slider 406 so that the cover 405 can be moved between the open position and the closed position by the action of the broken piece; when the aerosol generating device is not used, the cover 405 can be moved to a closed position to cover the first insertion hole 4011, so that dust or magazines generated during carrying of the product can be prevented from entering the first insertion hole 4011, and a dustproof effect is achieved.

In one embodiment, a through hole 201 is formed in the magnetic attraction plate 200 at a position corresponding to the insertion cavity 22, and a second stopping convex ring 303 is formed at the upper end of the inner support bracket 300 in a protruding manner; the lower end of the inner support bracket 300 is inserted into the insertion cavity 22 through the through hole 201 and is supported and hung on the magnetic attraction plate 200 through the second stop convex ring 303, so that when the magnetic attraction plate 200 moves upwards from the first position to the second position, the inner support bracket 300 can be synchronously driven to move upwards.

It should be noted that the outer diameter of the second stopping protruding ring 303 is smaller than the inner diameter of the first stopping protruding ring 4022, that is, when the upper lid assembly 400 is in the state of being attracted to the magnetic attraction plate 200, the second stopping protruding ring 303 is accommodated in the first stopping protruding ring 4022 and is located between the magnetic attraction plate 200 and the third magnetic element 404, so that the upper lid assembly 400, the magnetic attraction plate 200 and the inner support bracket 300 are in an integral structure that is relatively fixed, that is, the magnetic attraction plate 200 and the inner support bracket 300 can slide up and down with the upper lid assembly 400. And after the upper cover assembly 400 is detached from the main body 100, the inner support bracket 300 can be pulled upwards to be pulled out from the plug cavity 22 and the through hole 201, so that the inner support bracket 300 is separated from the main body 100, and at the moment, dirty substances accumulated in the plug cavity 22 due to long-term use can be cleaned conveniently, so that the taste of aerosol is ensured.

Further, as shown in fig. 7, in order to prevent the inner support bracket 300 from being accidentally taken out of the plugging cavity 22 after the upper cover assembly 400 is disassembled, in this embodiment, the protruding blocks 304 are disposed below the second stopping protruding ring 303 on the outer wall of the inner support bracket 300, the number of the protruding blocks 304 is preferably multiple, and the protruding blocks are circumferentially distributed on the outer wall of the inner support bracket 300, and the outer wall of each protruding block 304 is a convex arc surface; the magnetic attraction plate 200 is sleeved outside the inner support bracket 300 through the through hole 201 and is positioned between the second stop convex ring 303 and the convex block 304; when the inner support bracket 300 moves upward until the protrusion 304 abuts against the magnetic attraction plate 200 and the applied pulling force is greater than the maximum abutting acting force between the protrusion 304 and the inner wall of the through hole 201, the inner support bracket 300 is pulled out from the through hole 201 and the plugging cavity 22.

Preferably, the maximum abutting acting force between the bump 304 and the inner wall of the through hole 201 is smaller than the magnetic attraction force of the first magnetic member 70 to the magnetic attraction plate 200; thus, when the inner supporting frame 300 moves upward and is pulled out from the through hole 201 and the inserting cavity 22, the magnetic attraction plate 200 is always attached to the surface cover 30 under the magnetic attraction force of the first magnetic member 70. Of course, the maximum abutting force between the protrusion 304 and the inner wall of the through hole 201 can also be limited to be larger than the magnetic attraction force of the first magnetic member 70 to the magnetic attraction plate 200, that is, the inner support bracket 300 is pulled away when the magnetic attraction plate 200 is located at the second position.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In view of the above description of the technical solutions provided by the present invention, those skilled in the art will recognize that there may be variations in the technical solutions and the application ranges according to the concepts of the embodiments of the present invention, and in summary, the content of the present specification should not be construed as limiting the present invention.

Claims (11)

1. An aerosol generating device, comprising:

the heating device comprises a main body, a first magnetic part and an insertion cavity are arranged at the upper end of the main body, and a heating body is arranged at the bottom of the insertion cavity;

the magnetic suction plate is arranged at the upper end of the main body in a manner of sliding up and down between a first position and a second position;

the upper end of the inner support bracket is connected with the magnetic suction plate, and the lower end of the inner support bracket is inserted into the insertion cavity and can slide up and down in the insertion cavity along with the up-and-down sliding of the magnetic suction plate; an accommodating cavity for accommodating aerosol-forming substrates is formed in an opening at the top end of the inner support bracket, a through hole communicated with the accommodating cavity is formed in the bottom wall of the inner support bracket, and the upper end of the heating element is inserted into the accommodating cavity through the through hole and is used for penetrating the aerosol-forming substrates accommodated in the accommodating cavity;

the upper cover assembly is detachably mounted on the upper end of the main body in a vertically sliding manner, a second magnetic part for adsorbing the magnetic attraction plate is arranged in the upper cover assembly, and the magnetic attraction force of the second magnetic part to the magnetic attraction plate is greater than the magnetic attraction force of the first magnetic part to the magnetic attraction plate, so that the upper cover assembly can drive the magnetic attraction plate to slide between the first position and the second position; the upper cover assembly is provided with a first insertion hole correspondingly communicated with the accommodating cavity;

when the pulling force applied to the upper cover assembly is greater than the suction force of the first magnetic piece to the magnetic attraction plate, the upper cover assembly can drive the magnetic attraction plate to move from the first position to the second position through the magnetic attraction force of the second magnetic piece, and then the inner support is driven to move upwards for the same distance.

2. The aerosol generating device of claim 1, wherein the cover assembly is removably attached to the body by magnetic attraction between the second magnetic member and the magnetic attraction plate; when the upper cover assembly drives the magnetic attraction plate to move to the second position and the received pulling force is greater than the magnetic attraction force of the second magnetic piece on the magnetic attraction plate, the upper cover assembly is separated from the main body and the magnetic attraction plate.

3. The aerosol generating device as claimed in claim 1 or 2, wherein the upper cover assembly comprises a cover body which is slidably covered on the main body up and down and a liner which is arranged in the lower end of the cover body, and the second magnetic member is fixedly arranged between the cover body and the liner; the cover body is provided with the first insertion hole, the lining is provided with a mounting hole coaxially communicated with the first insertion hole, and the diameter of the mounting hole is larger than the outer diameter of the inner support bracket; the upper end of the inner bracket is coupled to the mounting hole when the upper cover assembly is mounted to the main body.

4. The aerosol generating device according to claim 3, wherein a first stopping convex ring is formed at the lower end of the mounting hole in a protruding manner towards the center, an annular third magnetic member is supported in the mounting hole through the first stopping convex ring, and the inner diameter of the third magnetic member is matched with the outer diameter of the inner support bracket.

5. An aerosol generating device according to claim 3, wherein the cover is further provided with a cover movable between an open position and a closed position, the cover covering the first insertion hole when the cover is in the closed position; the first insertion hole is exposed when the cover is moved from the closed position to the open position.

6. The aerosol generating device according to claim 1 or 2, wherein a through hole is formed in a position of the magnetic suction plate corresponding to the insertion cavity, and a second stopping convex ring is formed at the upper end of the inner support bracket in a protruding manner; the lower end of the inner support bracket is inserted into the inserting cavity through the through hole and is supported and hung on the magnetic suction plate through the second stopping convex ring, so that the magnetic suction plate can synchronously drive the inner support bracket to move upwards when moving upwards from the first position to the second position.

7. The aerosol generating device according to claim 6, wherein the outer wall of the inner holder bracket is provided with a projection below the second stopping convex ring, and the magnetic suction plate is sleeved outside the inner holder bracket through the through hole and positioned between the second stopping convex ring and the projection; and when the inner support bracket moves upwards until the convex block abuts against the magnetic suction plate and the applied pulling force is greater than the maximum abutting acting force between the convex block and the inner wall of the through hole, the inner support bracket is pulled out of the through hole.

8. The aerosol generating device of claim 7, wherein a maximum abutting force between the protrusion and the inner wall of the through hole is smaller than a magnetic attraction force of the first magnetic member to the magnetic attraction plate.

9. An aerosol generating device according to claim 7, wherein the body comprises a housing, and a mounting bracket and a face cap disposed within an upper end of the housing, the first magnetic member being fixedly disposed between the mounting bracket and the face cap; the mounting bracket is provided with a sleeve forming the splicing cavity, the lower end of the heating body is fixed on the bottom wall of the sleeve, and the top end of the mounting bracket is provided with a fixed cover of the surface cover and is provided with a second insertion hole communicated with the splicing cavity correspondingly.

10. The aerosol generating device according to claim 9, wherein a magnetic induction coil is further wound around the sleeve, and the magnetic induction coil is configured to generate an alternating magnetic field in the insertion cavity, so that the heating element generates heat under the action of the alternating magnetic field.

11. An aerosol generating device according to claim 9, wherein the magnetic attraction plate is further connected to a guide post, the lower end of the guide post being slidably connected to the mounting bracket and the face cap.

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