CN221284701U - Aerosol generating device - Google Patents

Abstract

The present utility model relates to an aerosol-generating device comprising at least a first heating structure and a second heating structure; the first heating structure comprises a resonant cavity for microwave to enter and an inner conductor, and the resonant cavity is provided with at least a first end wall and a second end wall which is arranged opposite to the first end wall; the inner conductor is connected with the second end wall, is of a hollow structure and is provided with a first port, and a heating zone for heating the aerosol-generating substrate is formed between the first port and the first end wall; the second heating structure is arranged on the inner conductor. According to the aerosol generating device, the second heating structure is arranged on the inner conductor of the first heating structure, and then the combination of the two heating structures can be realized, so that the aerosol generating substrate can be fully heated, the taste of aerosol generated by heating is improved, the energy efficiency is high, and the user experience is greatly improved.

Description

Aerosol generating device

Technical Field

The present utility model relates to the field of atomization, and in particular to aerosol-generating devices.

Background

In the aerosol generating devices in the related art, a single heating mode is generally adopted, for example, some aerosol generating devices adopt a circumferential microwave narrow slit heating structure, and due to low microwave heating efficiency, the aerosol generating substrate is fully heated and the generated aerosol has good taste and needs to provide more energy, while other aerosol generating devices adopt a resistance heating mode, and although the heating efficiency is higher, the preheating time is longer, and the instant pumping cannot be realized.

Disclosure of utility model

The technical problem underlying the present utility model is to provide an improved aerosol-generating device.

The technical scheme adopted for solving the technical problems is as follows: constructing an aerosol-generating device comprising at least a first heating structure and a second heating structure;

The first heating structure comprises a resonant cavity for microwave to enter and an inner conductor, and the resonant cavity is provided with at least a first end wall and a second end wall which is arranged opposite to the first end wall; the inner conductor is connected with the second end wall, is of a hollow structure and is provided with a first port, and a heating zone for heating the aerosol-generating substrate is formed between the first port and the first end wall;

the second heating structure is arranged on the inner conductor.

In some embodiments, the inner conductor forms a channel inside for a portion of the aerosol-generating substrate to pass through; the second heating structure is arranged on the inner side of the inner conductor and is positioned at or near the first port.

In some embodiments, a spacing structure is provided in the inner conductor for spacing installation of the second heating structure.

In some embodiments, the second heating structure comprises a heat-generating body; the heating body is arranged on the inner side of the limiting structure.

In some embodiments, the second heating structure further comprises an isolation structure disposed on the spacing structure; the heating body is arranged on one side, far away from the limiting structure, of the isolating structure.

In some embodiments, the insulating structure comprises a thermally insulating structure and/or an insulating structure.

In some embodiments, a conductive structure connected to the second heating structure is further included, the conductive structure leading from the inner conductor.

In some embodiments, the second heating structure is one, the second heating structure being disposed along a circumference of the inner conductor;

Or the number of the second heating structures is at least two, and the at least two second heating structures are arranged at intervals along the circumferential direction of the inner conductor.

In some embodiments, a microwave collapse structure in communication with the resonant cavity is also included.

In some embodiments, the heat-generating body comprises at least one of a heat-generating sheet, a heat-generating film, a resistive wire, and an infrared film.

The aerosol generating device has the following beneficial effects: according to the aerosol generating device, the second heating structure is arranged on the inner conductor of the first heating structure, and then the combination of the two heating structures can be realized, so that the aerosol generating substrate can be fully heated, the heating efficiency and the produced aerosol taste are improved, the energy efficiency is high, and the user experience is greatly improved.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

Fig. 1 is a schematic structural view of an aerosol-generating device according to a first embodiment of the utility model assembled with an aerosol-generating substrate;

fig. 2 is a schematic cross-sectional view of the aerosol-generating device and aerosol-generating substrate assembly configuration shown in fig. 1;

FIG. 3 is a schematic diagram of a composite structure of a first heating structure and a second heating structure of the aerosol-generating device of FIG. 2;

FIG. 4 is a cross-sectional view of the first heating structure and the second heating structure of FIG. 3 in combination;

FIG. 5 is a schematic view of a partial structure of the first heating structure and the second heating structure of FIG. 4;

FIG. 6 is a partial structural cross-sectional view of the first heating structure and the second heating structure of FIG. 5 in combination;

FIG. 7 is a schematic view of the inner conductor structure of the first heating structure of FIG. 5;

FIG. 8 is a schematic view showing a partial structure of a combination of a first heating structure and a second heating structure of an aerosol-generating device according to a second embodiment of the present utility model;

FIG. 9 is a partial structural cross-sectional view of a combination of the first heating structure and the second heating structure of the aerosol-generating device illustrated in FIG. 8;

FIG. 10 is a schematic view showing a partial structure of a combination of a first heating structure and a second heating structure of an aerosol-generating device according to a third embodiment of the present utility model;

fig. 11 is a partial structural cross-sectional view of a combination of the first heating structure and the second heating structure of the aerosol-generating device illustrated in fig. 10.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated as "upper", "lower", "longitudinal", "transverse", "top", "bottom", "inner", "outer", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present technical solution, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," and the like are used merely for convenience in describing the present technology and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," and the like may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.

Fig. 1 shows a first embodiment of the aerosol-generating system of the utility model. The aerosol-generating system may comprise an aerosol-generating device 100 and an aerosol-generating substrate 200, the aerosol-generating device 100 being adapted to heat the aerosol-generating substrate 200 to generate an aerosol for inhalation by a user. The aerosol-generating substrate 200 is detachably arranged on the aerosol-generating device 100 and is adapted to generate an aerosol in a heated state. In some embodiments, the aerosol-generating substrate 200 is columnar, in particular, the aerosol-generating substrate 200 may be columnar, may be a wire-like, granular or sheet-like solid material made of leaves, flowers and/or stems of plants, and may further include aroma components therein.

As shown in fig. 1 and 2, in the present embodiment, the aerosol-generating device 100 may include a housing 10, a first heating structure 20, a second heating structure 30, and a cover assembly 40. The housing 10 is configured to house a first heating structure 20 and a second heating structure 30. The first heating structure 20 may utilize microwaves to heat the aerosol-generating substrate 200, and particularly, when the first mouth is sucked by the smoker, the aerosol-generating substrate 200 is heated, so that about 1S of "rapid smoking" and immediate sucking can be realized; meanwhile, the device also has the effect of stopping immediately. The second heating structure 30 may be used to heat the aerosol-generating substrate 200 in a non-microwave manner, and may be used to preheat at least a portion of the aerosol-generating substrate 200 when the first port is being drawn by the user, or to reheat the aerosol-generating substrate 200 after or after the second port is being drawn by the user, thereby improving the heating efficiency and the heating efficiency of the aerosol-generating substrate 200. The cover assembly 40 is detachably assembled to the housing 10 for covering the housing 10.

In this embodiment, the housing 10 may have a cylindrical structure and may be disposed lengthwise, and a cavity for accommodating the first heating structure 20 and the second heating structure 30 is formed inside. In some embodiments, the housing 10 may be generally square in cross-section. In some embodiments, the housing 10 may be made of a metal material, although it is understood that in other embodiments, the housing 10 may not be limited to a metal material, and may be plastic or other materials.

As shown in fig. 3 and 4, in the present embodiment, the first heating structure 20 may include an outer conductor 21 and an inner conductor 22. The outer conductor 21 has a hollow cylindrical structure. The inner conductor 22 is at least partially disposed in the outer conductor 21 and cooperates with the outer conductor 21 to form a resonant cavity 23.

In the present embodiment, the outer conductor 21 may be substantially cylindrical, but it is understood that the outer conductor 21 is not limited to be cylindrical in other embodiments, and may be a square cylinder or a cylinder of other shapes. The outer conductor 21 may include an opening 211, a bottom wall 212, and an annular wall 213, the opening 211 being disposed opposite the bottom wall 212. The bottom wall 212 is disposed opposite the opening 211 and serves to support the inner conductor 22. The annular wall 213 is disposed on the bottom wall 212, and cooperates with the bottom wall 212 and the outer wall of the inner conductor 22 to define the resonant cavity 23. The bottom wall 212 is provided with a crush entrance for microwave to crush.

In this embodiment, the inner conductor 22 has a columnar shape, and its cross section may be substantially circular, where the axis line coincides with the central axis line of the outer conductor 21 and abuts against the bottom wall 212. It will be appreciated that in some embodiments, the cross-section of the inner conductor 22 is not limited to being circular, but may be square, oval, etc. In some embodiments, the inner conductor 22 is a hollow structure, with the inner side forming a channel 221 for at least a portion of the aerosol-generating substrate 200 to pass through. The outer diameter of the inner conductor 22 is smaller than the inner diameter of the outer conductor 21. In the present embodiment, the inner conductor 22 may include a first cylindrical body 22a and a second cylindrical body 22b, where the first cylindrical body 22a is disposed in the outer conductor 21 and coaxially disposed with the outer conductor 21, and the inner diameter thereof may be adapted to the outer diameter of the aerosol-generating substrate 200. The second column 22b is disposed at one end of the first column 22a, and can be integrally formed with the first column 22 a. The second cylindrical body 22b may be inserted into the bottom wall 212. The radial dimension of the second cylindrical body 22b is smaller than the radial dimension of the first cylindrical body 22 a. The first columnar body 22a and the second columnar body 22b penetrate each other. In the present embodiment, a lead hole 222 is provided on a sidewall of the first pillar 22a, and the lead hole 222 may be used for the conductive structure of the second heating structure 30 to be led out.

In the present embodiment, the inner conductor 22 has a first port 2201 and a second port 2202, the first port 2201 is located at an end of the first column 22a away from the second column 22b, and the second port 2202 is located at an end of the second column 22b away from the first column 22 a. In some embodiments, the axial height of the first pillar 22a is less than the axial height of the resonant cavity 23.

In the present embodiment, the resonant cavity 23 has a first end wall 23a, a first end wall 23b, an inner annular wall, and an outer annular wall. The first end wall 23a is disposed opposite to the first end wall 23b, and the inner and outer annular walls are disposed at intervals and coaxially, wherein the outer annular wall is an inner side wall of the outer conductor 21, the inner annular wall may be an outer side wall of the inner conductor 22, and the second end wall 23b may be formed by a bottom wall 212 of the outer conductor 21. A space is left between the first port 2201 and the first end wall 23a, the space between the first port 2201 and the first end wall 23a forms a heating zone 231, when microwaves are collapsed into the resonant cavity 23, annular ignition occurs between the outer wall of the inner conductor 22 and the inner wall of the resonant cavity 23 to form an alternating electric field which varies with the frequency domain, and energy can be transmitted to the heating zone 231, so that the aerosol generating substrate 200 can be heated to generate aerosol.

In this embodiment, the first heating structure 20 further includes a resonant cavity cover 24, and the resonant cavity cover 24 may be sleeved on a portion of the outer periphery of the outer conductor 21 and may be connected to the outer conductor 21 through a screw structure. The resonant cavity cover 24 includes a cover portion 241 and a guide post 242, where the cover portion 241 may cover the opening 211 and may form the first end wall 23a of the resonant cavity 23. The guide post 242 is disposed at the central axis of the covering portion 241 and has a structure with two through ends, and is disposed coaxially with the inner conductor 22, and the guide channel 2420 is disposed through the inner aerosol-generating substrate 200 and is capable of guiding a part of the aerosol-generating substrate 200 into the inner conductor 22.

In this embodiment, the first heating structure 20 further includes a microwave feeding structure 25, and the microwave feeding structure 25 is connected to the bottom wall 212 of the outer conductor 21 and can partially penetrate into the resonant cavity 23 from the feeding port for feeding microwaves into the resonant cavity 23. In some embodiments, the microwave crush structure may be a coaxial crush line.

In this embodiment, the first heating structure 20 further includes a microwave generating component 26, where the microwave generating component 26 is connected to the microwave collapsing structure 25, and may collapse microwaves generated by the microwave collapsing structure 25 into the resonant cavity 23.

In this embodiment, the first heating structure 20 further comprises a pushing mechanism 27, which pushing mechanism 27 is at least partially mounted in the inner conductor 22 and is adapted to move the aerosol-generating substrate 200 away from the second port 2202.

As shown in fig. 5 to 7, in the present embodiment, the second heating structure 30 is disposed on the inner conductor 22, and in particular, the second heating structure 30 may be mounted on the inner side of the inner conductor 22, close to the first port 2201, and in butt joint with the first port 2201. In other embodiments, the second heating structure 30 may also be located at the first port 2201.

In the present embodiment, the second heating structure 30 may include an isolation structure 31 and a heating element 32, the isolation structure 31 may be disposed on the inner wall of the inner conductor 22, and the heating element 32 is disposed on a side of the isolation structure 31 opposite to the inner wall of the inner conductor 22.

In this embodiment, the isolation structure 31 may be a heat insulation structure. Specifically, the isolation structure 31 may be disposed along the circumference of the inner conductor 22, which may be a heat insulating ring, and conventional heat insulating materials may be selected. In other embodiments, the isolation structure 31 may also be an insulating structure, such as a ceramic. In other embodiments, the isolation structure 31 may be a combination of a heat insulating structure and an insulating structure.

In the present embodiment, the heat generating body 32 is a heat generating film, specifically, the heat generating body 32 is provided on the isolation structure 31 by a process such as plating or coating, and the aerosol-generating substrate 200 can be heated by a resistance heating method. In other embodiments, the heat-generating body 32 is not limited to a heat-generating film, but may be one of a heat-generating sheet, a resistance wire, and an infrared film; or the heating element 32 may be at least two of a heating sheet, a heating film, a resistance wire, and an infrared film. In other embodiments, the second heating structure 30 may also comprise an electromagnetic heating structure, and the second heating structure 30 may heat the aerosol-generating substrate 200 by electromagnetic heating.

In the present embodiment, the inner conductor 22 is provided with a limiting structure 223, and the limiting structure 223 can be used for limiting the second heating structure 30, so that the first heating structure 20 and the second heating structure 30 can be combined to form a component. In some embodiments, the stop structure 223 can include a stepped bore 2230, where the stepped bore 2230 is coaxial with the channel 221 and interfaces with the first port 2201. In some embodiments, the inner wall thickness of a section of inner conductor 22 proximate first port 2201 may be reduced such that the section inner diameter is greater than and stepped with the remaining portion inner diameter such that the inner diameter of stepped bore 2230 defined by the section inner wall may be greater than the inner diameter of channel 221. The second heating structure 30 may be mounted inside the limiting structure 223, that is, on the wall of the stepped shaft hole 2230, and may abut against the step of the stepped shaft hole 2230. Specifically, the isolation structure 31 may be disposed on the wall of the stepped shaft 2230, and the heating element 32 may be disposed on a side of the isolation structure 31 opposite to the limiting structure 223. In other embodiments, the limiting structure 223 is not limited to an axial hole, but may be a limiting groove or other. In other embodiments, the stop feature 223 may be omitted. The second heating structure 30 may be mounted directly on the inner wall of the inner conductor 22.

In this embodiment the aerosol-generating device further comprises an electrically conductive structure connectable at one end to the second heating structure 30. The other end may be led out of the inner conductor 22, specifically, the other end thereof may be led out of the lead hole 222 onto the main control board. In some embodiments, the conductive structures may be leads, conductive sheets, and the like.

In the present embodiment, the first heating structure 20 in the aerosol-generating device 100 is configured to heat the aerosol-generating substrate 200 when the first mouth is drawn by the user, enabling a "rapid smoking" of the aerosol-generating substrate 200 up to about 1S of smoking; the second heating structure 30 may be configured to heat the aerosol-generating substrate 200 after or after the second port is drawn by the user, such that a low power consumption, energy efficient drawing may be achieved, thereby enhancing the energy efficiency. The specific controls may be set according to consumer habits.

Specifically, the aerosol-generating substrate 200 may be first partially inserted into the inner conductor 22 from the cavity cover 24 until one end of the aerosol-generating substrate 200 abuts against the pushing mechanism 27, the first heating structure 20 is activated, the microwave source may collapse energy into the cavity 23, the first port is simultaneously pumped by the pump, the aerosol-generating substrate 200 may be heated in the heating zone 231, and in the process, in some other embodiments, the second heating structure 30 may preheat a portion of the aerosol-generating substrate 200 located in the inner conductor 22. After the suction of the 1 st port is completed, the first heating structure 20 is turned off, the second heating structure 30 is powered to enable the second heating structure 30 to perform main heating on the aerosol-generating substrate 200, the low-power consumption and high-energy efficiency suction is completed, after the suction of the 2 nd port is completed, the aerosol-generating substrate 200 moves for 1mm in a direction away from the second port 2202, and the operation is repeated until the aerosol-generating substrate 200 moves for 11mm to complete the suction.

In other embodiments, the first heating structure 20 may be configured to heat the aerosol-generating substrate 200 when the first port is smoked by a smoker, to achieve a "rapid puff" of aerosol-generating substrate 200, up to 1S of puff, to achieve a ready-to-puff effect, and to primarily heat the aerosol-generating substrate 200 when the second port is smoked by a smoker; the second heating structure 30 may be configured to assist the first heating structure 20 in preheating the aerosol-generating substrate 200 when the second port is drawn by the smoker, thereby achieving a "fast smoke and energy efficient" feature.

In other embodiments, the second heating structure 30 may also be configured to preheat the aerosol-generating substrate 200 located in the non-heating region 231 as the first port is being aspirated by the aspirator.

Fig. 8 and 9 show a second embodiment of the present utility model, which is different from the first embodiment in that the heating element 32 may be an infrared film, which may be electroplated or coated on the isolation structure 31, and may generate heat and infrared light waves in an energized state, thereby enabling heating of the aerosol-generating substrate 200. In some embodiments, the infrared film may have a thickness in the range of 2.5 microns to 16 microns.

In other embodiments, the heating element 32 may be a heating film and an infrared film, the heating film may be disposed on the isolation structure 31, and the infrared film may be disposed on a side of the heating film opposite to the isolation structure 31. The heating film may be connected to the conductive structure, while the infrared film is not energized, the heating film may heat up under energized state and thereby heat the infrared film, which may be heated to generate infrared light waves, heating the aerosol-generating substrate 200.

Fig. 10 and 11 show a third embodiment of the present utility model, which is different from the first embodiment in that the heating element 32 may be a resistance wire, and the resistance wire may be disposed on a side of the isolation structure 31 opposite to the wall of the stepped shaft hole 2230.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. An aerosol-generating device, characterized by comprising at least a first heating structure (20) and a second heating structure (30);

The first heating structure (20) comprises a resonant cavity (23) for microwave to enter and an inner conductor (22), wherein the resonant cavity (23) is provided with at least a first end wall (23 a) and a second end wall (23 b) opposite to the first end wall (23 a); the inner conductor (22) is connected with the second end wall (23 b), the inner conductor (22) is of a hollow structure and is provided with a first port (2201), and a heating zone (231) for heating the aerosol-generating substrate is formed between the first port (2201) and the first end wall (23 a);

The second heating structure (30) is arranged on the inner conductor (22).

2. An aerosol-generating device according to claim 1, characterized in that a channel (221) is formed inside the inner conductor (22) for part of the aerosol-generating substrate to pass through; the second heating structure (30) is disposed inside the inner conductor (22) and at or near the first port (2201).

3. Aerosol-generating device according to claim 2, characterized in that the inner conductor (22) is provided with a limiting structure (223) for limiting the mounting of the second heating structure (30).

4. An aerosol-generating device according to claim 3, characterized in that the second heating structure (30) comprises a heating body (32); the heating element (32) is arranged on the inner side of the limit structure (223).

5. Aerosol-generating device according to claim 4, characterized in that the second heating structure (30) further comprises an isolation structure (31), the isolation structure (31) being arranged on the limit structure (223), the heating element (32) being arranged on a side of the isolation structure (31) remote from the limit structure (223).

6. Aerosol-generating device according to claim 5, characterized in that the insulating structure (31) comprises an insulating structure and/or an insulating structure.

7. Aerosol-generating device according to claim 1, further comprising an electrically conductive structure connected to the second heating structure (30), the electrically conductive structure leading from the inner conductor (22).

8. Aerosol-generating device according to claim 1, characterized in that the second heating structure (30) is one, the second heating structure (30) being arranged along the circumference of the inner conductor (22);

Or the number of the second heating structures (30) is at least two, and the at least two second heating structures (30) are arranged at intervals along the circumferential direction of the inner conductor (22).

9. Aerosol-generating device according to claim 1, further comprising a microwave collapse structure (25) in communication with the resonant cavity (23).

10. Aerosol-generating device according to any one of claims 1 to 9, characterized in that the second heating structure (30) comprises a heating body (32); the heating element (32) comprises at least one of a heating sheet, a heating film, a resistance wire and an infrared film.