Aerosol-generating device

Abstract

The utility model provides an aerosol generating device comprising a housing defining a heating chamber; the shell is internally provided with a first heating assembly and a second heating assembly, the first heating assembly comprises a first heater and a second heater, and the first heater and the second heater surround the heating cavity and are spaced in the longitudinal direction of the heating cavity; the second heating assembly comprises a third heater, and the third heater is provided with a first end and a second end which are opposite; the first end extends into the heating chamber so as to be inserted into the aerosol generating product for heating; in the longitudinal direction of the heating cavity, the third heater is overlapped with the first heater and the second heater in the radial direction at the same time. According to the aerosol generating device, the first heater and the second heater surround the heating chamber and are spaced in the longitudinal direction of the heating chamber, and the third heater is radially overlapped with the first heater and the second heater at the same time; in this way, different positions around can be heated, and the suction experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating device. Background Art

[0002] Smoking articles such as cigarettes and cigars burn tobacco to produce smoke during use. Attempts have been made to provide alternatives to these tobacco-burning products through some products, examples of which are so-called heat-not-burn products, which release compounds by heating the tobacco rather than burning it.

[0003] An existing aerosol generating device heats the aerosol generating product by using a central heating method and a circumferential heating method, which can make the aerosol generating product more fully heated and improve the utilization rate of the aerosol generating product. The problem with this device is that it cannot achieve heating at different positions around the periphery. Utility Model Content

[0004] The present application provides an aerosol generating device to achieve heating at different positions around the device and enhance the user's smoking experience.

[0005] The present application provides an aerosol generating device, comprising a housing, wherein a heating chamber is defined inside the housing, and the heating chamber is used to removably receive at least a portion of an aerosol generating article; the housing is provided with:

[0006] a first heating assembly including a first heater and a second heater, the first heater and the second heater being configured to both surround the heating chamber and to be spaced longitudinally of the heating chamber;

[0007] A second heating assembly, comprising a third heater, the third heater having a first end and a second end opposite to each other; the first end extending into the interior of the heating chamber so as to be insertable into the interior of the aerosol generating article for heating;

[0008] Wherein, along the longitudinal direction of the heating chamber, the third heater radially overlaps with the first heater and the second heater.

[0009] In one example, the aerosol generating device further includes a battery cell configured to independently provide power to one of the first heater, the second heater, and the third heater, so that one of the three heaters works independently or at least two of them work simultaneously.

[0010] In one example, the aerosol generating device further comprises:

[0011] a bracket for holding the first heater and the second heater;

[0012] The base is arranged near the bottom of the shell; the base is used to hold the second end of the third heater and is detachably connected to the bracket.

[0013] In one example, the bracket is provided with a first fastener, and the base is provided with a first fastener hole, and the first fastener cooperates with the first fastener hole to enable the base and the bracket to be detachably connected.

[0014] In one example, the second heating assembly further includes a base, and the base is used to hold the second end of the third heater; the base is held on the base.

[0015] In one example, a connecting member fixedly connected to the base is further included, and the base is held on the connecting member and the base.

[0016] In one example, the bracket includes a first bracket and a second bracket that are detachably connected, the first bracket is used to hold the first heater, and the second bracket is used to hold the second heater.

[0017] In one example, a second clamping hole is provided on the first bracket, and a second clamping piece is provided on the second bracket. The second clamping piece cooperates with the second clamping hole so that the first bracket and the second bracket are detachably connected.

[0018] In one example, a first thermal insulation member and a second thermal insulation member are further included, wherein the first thermal insulation member is disposed between the first bracket and the first heater, and the second thermal insulation member is disposed between the second bracket and the second heater.

[0019] In one example, a top seat is further included which is arranged near the top of the shell, and the bracket is fixedly connected to the top seat.

[0020] In the aerosol generating device provided by the present application, the first heater and the second heater surround the heating chamber and are spaced longitudinally along the heating chamber, and the third heater radially overlaps with the first heater and the second heater. In this way, heating of different positions around the periphery can be achieved, thereby improving the user's smoking experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 is a schematic diagram of an aerosol generating device provided in an embodiment of the present application;

[0023] Figure 2 yes Figure 1 Schematic cross-sectional view of ;

[0024] Figure 3 yes Figure 2 A partial enlarged schematic diagram of

[0025] Figure 4 is a schematic diagram of a second heating assembly provided in an embodiment of the present application;

[0026] Figure 5 is a schematic diagram of a second heating component and a base provided in an embodiment of the present application;

[0027] Figure 6 is an exploded schematic diagram of a second heating component and a base provided in an embodiment of the present application;

[0028] Figure 7 is another exploded schematic diagram of the second heating assembly and the base provided in an embodiment of the present application;

[0029] Figure 8 is a cross-sectional schematic diagram of a second heating component and a base provided in an embodiment of the present application;

[0030] Fig. 9 is a schematic diagram of a first heating component and a bracket provided in an embodiment of the present application;

[0031] Fig.10 is an exploded schematic diagram of a first heating assembly and a bracket provided in an embodiment of the present application;

[0032] Fig.11 is a cross-sectional schematic diagram of a first heating component and a bracket provided in an embodiment of the present application;

[0033] Fig.12 It is a schematic diagram of the top seat provided in the embodiment of the present application;

[0034] Fig.13 It is another schematic diagram of the top seat provided in the embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification and in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0037] like Figure 1-Figure 3 As shown, the aerosol generating device 10 provided in the embodiment of the present application includes a housing. The housing is composed of a main shell 11 and a top cover 12. An opening A is provided on the top cover 12, and at least part of the aerosol generating product is removably received in the aerosol generating device 10 through the opening A. In a further implementation, a sliding cover 13 is also provided on the top cover 12, and the sliding cover 13 can be slid along the width direction of the aerosol generating device 10 to open or close the opening A.

[0038] A first heating assembly 14 is disposed within the housing and is configured to surround at least a portion of the aerosol-generating article for heating.

[0039] The first heating component 14 is tubular and has a heating chamber formed therein. The first heating component 14 is used to heat the inhalable material in the aerosol generating article received in the heating chamber to generate an inhalable aerosol. The first heating component 14 can heat the inhalable material by one or more of heat conduction, electromagnetic induction, chemical reaction, infrared action, resonance, photoelectric conversion, and photothermal conversion. For example, the first heating component 14 can be an infrared heater, a resistance heater, etc.

[0040] In the example in the figure, the first heating component 14 includes a first heater 141 and a second heater 142, and the first heater 141 and the second heater 142 are spaced apart in the longitudinal (length) direction of the aerosol generating device 10. The first heater 141 is arranged closer to the opening A than the second heater 142. In one example, the first heater 141 and the second heater 142 can be spaced apart by a seal 15. The seal 15 is made of a flexible and high temperature resistant material, such as silicone, and a good sealing effect can be formed between the first heater 141 and the second heater 142 through the seal 15 to prevent heat from overflowing from between the first heater 141 and the second heater 142, that is, to reduce heat loss.

[0041] A second heating assembly 16 is also disposed in the housing. Figure 4 As shown, the second heating assembly 16 includes a third heater 161 , a flange 162 , a base 163 and a seal 164 .

[0042] The third heater 161 is configured to be needle-shaped or sheet-shaped, and is needle-shaped as shown in the figure. The third heater 161 has a first end and a second end opposite to each other, and the second end of the third heater 161 is arranged away from the opening A relative to the first end, and the first end of the third heater 161 extends into the heating chamber, and is more specifically arranged near the upper end of the first heating component 14, so that along the longitudinal direction of the heating chamber, the third heater 161 is radially overlapped with the first heater 141 and the second heater 142 at the same time. When the aerosol generating product is received in the heating chamber through the opening A, the first end of the third heater 161 can be inserted into the interior of the aerosol generating product for heating. The third heater 161 can heat the inhalable material by one or more of heat conduction, electromagnetic induction, chemical reaction, infrared action, resonance, photoelectric conversion, and photothermal conversion. For example, the third heater 161 can be an infrared heater, a resistance heater, etc. In a further implementation, the second heating component 16 also includes a lead electrically connected to the third heater 161, and the lead is used to be electrically connected to the battery core.

[0043] The flange 162 is sleeved on the third heater 161 and is arranged near the second end of the third heater 161, and the base 163 is sleeved on the flange 162, so as to hold the second end of the third heater 161. Through the flange 162 and the base 163, the heat transfer of the third heater 161 to the outside can also be reduced. A receiving groove (not shown) is arranged on the side wall of the base 163, and part of the sealing member 164 is accommodated in the receiving groove. The side wall of the base 163 also has a radially extending flange 1641.

[0044] like Figure 5-Figure 8 As shown, a base 17 is further provided in the housing, and the base 17 is arranged near the bottom of the housing. The base 17 includes a body 171 and a connecting member 172.

[0045] The body 171 extends in the longitudinal direction (length) of the aerosol generating device 10, and the lower end of the body 171 is close to the bottom of the shell. A fixing hole 171a is provided on the body 171. A receiving cavity is provided at the upper end of the body 171, and a card slot 171b is provided in the receiving cavity. The end surface of the upper end of the body 171 has a protrusion extending toward the opening A, and a card hole 171c is provided on the protrusion.

[0046] The connecting member 172 is provided with a fixing hole 172a, and a portion of the fixing hole 172a can extend into the fixing hole 171a. The connecting member 172 is also provided with a clamping groove 172b.

[0047] When the second heating assembly 16 is assembled to the base 17, the base 163 is at least partially received in the receiving cavity of the body 171, the flange 1641 is clamped in the clamping groove 171b and the clamping groove 172b, and the sealing member 164 is retained between the receiving cavity of the body 171 and the base 163, thereby forming a seal. Part of the fixing hole 172a extends into the fixing hole 171a, and the connecting member 172 can be fixedly connected to the body 171 by fasteners, such as screws, so that the base 17 holds the second heating assembly 16.

[0048] A support 18 is also provided in the housing for holding the first heating assembly 14. The base 17 is detachably connected to the support 18.

[0049] like Figure 9-11 As shown, the bracket 18 includes a first bracket 181 and a second bracket 182 that are detachably connected. The first bracket 181 is used to hold the first heater 141 , and the second bracket 182 is used to hold the second heater 142 .

[0050] Specifically, the second bracket 182 is generally tubular in structure, and a snap-fitting piece 182a is provided on the side wall of the second bracket 182, and a limiting component 182b is provided on the inner wall of the second bracket 182. After the second heating component 16 is assembled to the base 17, the second heating component 16 and the base 17 can be assembled to the second bracket 182 together. At this time, the snap-fitting hole 171c of the base 17 cooperates with the snap-fitting piece 182a of the second bracket 182, that is, the snap-fitting connection is achieved to realize the detachable connection between the base 17 and the second bracket 182. The limiting component 182b abuts against the base 163, so that the second heating component 16 and the base 17 are assembled in place.

[0051] The second bracket 182 also has a plurality of cantilevers extending toward the opening A, and a snap-fit ​​member 182c is formed on the cantilever. A snap-fit ​​hole 181a is provided on the first bracket 181. The second bracket 182 can be assembled to the first bracket 181, and the snap-fit ​​member 182c cooperates with the snap-fit ​​hole 181a to realize a detachable connection between the first bracket 181 and the second bracket 182.

[0052] The first bracket 181 also has a flange 181b, and the seal 15 has a slot 151 corresponding to the flange 181b. During assembly, the flange 181b is locked in the slot 151, so that the first bracket 181 can hold the first heater 141, or the second bracket 182 can hold the second heater 142.

[0053] The first bracket 181 also has a fixing hole 181c.

[0054] In a further implementation, a first heat insulating member 19 and a second heat insulating member 20 are further provided in the shell, wherein the first heat insulating member 19 is provided between the first bracket 181 and the first heater 141, and the second heat insulating member 21 is provided between the second bracket 182 and the second heater 142. The first heat insulating member 19 and the second heat insulating member 20 can reduce the heat transfer outward from the first heating assembly 14, thereby avoiding heat loss and the problem of excessive shell temperature.

[0055] In a further implementation, a sealing member 21 is further provided in the housing. The sealing member 21 is made of a flexible and high temperature resistant material, such as silicone. The sealing member 21 is arranged between the end surface of the lower end of the second heater 142 and the second bracket 182. In this way, a good sealing effect is formed on the one hand, and heat loss is reduced on the other hand.

[0056] The housing is also provided with a top seat 22. The top seat 22 is arranged near the top of the housing. Figure 12-13 As shown, the top seat 22 extends substantially along the width direction of the aerosol generating device 10, and the top seat 22 has a through hole 221 and a fixing hole 222. The through hole 221 is connected to the opening A and the heating chamber. The fixing hole 181c is aligned with the fixing hole 222, and the first bracket 181 can be fixedly connected to the top seat 22 by a fixing member, such as a screw.

[0057] A frame 24 is also provided in the shell, and a circuit board 25 and a battery cell 26 are both held on the frame 24. The first heating assembly 14, the second heating assembly 16, the base 17 and the bracket 18 are all arranged near the left side of the shell, while the battery cell 26 is arranged near the right side of the shell, and the circuit board 25 is arranged in the middle part.

[0058] The circuit board 25 can control the overall operation of the aerosol generating device 10. In detail, the circuit board 25 not only controls the operation of the first heating component 14, the second heating component 16, and the battery cell 26, but also controls the operation of other components in the aerosol generating device 10. In addition, the circuit board 25 can determine whether the aerosol generating device 10 can be operated by checking the status of the components of the aerosol generating device 10. Further, the aerosol generating device 10 also includes a button, and the aerosol generating device 10 can be operated by pressing the button.

[0059] The battery cell 26 provides power for operating the aerosol generating device 10. For example, the battery cell 26 is configured to be able to independently provide power to one of the first heater 141, the second heater 142, and the third heater 161, so that one of the three can work independently or at least two can work simultaneously; for example, the battery cell 26 can provide power required to operate the circuit board 25. In addition, the battery cell 26 can provide power required to operate other elements provided in the aerosol generating device 10. The battery cell 26 can be, but is not limited to, a lithium iron phosphate (LiFePO4) battery, a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, or the like.

[0060] It should be noted that by controlling the start-up of the aforementioned first heater 141, the second heater 142, and the third heater 161, various forms such as heating the upper or lower end of the periphery of the aerosol generating product, heating the center, heating the center and the upper end of the periphery at the same time, heating the center and the lower end of the periphery at the same time, and heating the center and the upper and lower ends of the periphery at the same time can be achieved, which is beneficial for users to achieve various experiences.

[0061] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. An aerosol generating device, comprising a housing, wherein a heating chamber is defined inside the housing, and the heating chamber is used to removably receive at least a portion of an aerosol generating article; characterized in that The housing is provided with: a first heating assembly including a first heater and a second heater, the first heater and the second heater being configured to both surround the heating chamber and to be spaced longitudinally of the heating chamber; A second heating assembly, comprising a third heater, the third heater having a first end and a second end opposite to each other; the first end extending into the interior of the heating chamber so as to be insertable into the interior of the aerosol generating article for heating; Wherein, along the longitudinal direction of the heating chamber, the third heater radially overlaps with the first heater and the second heater.

2. The aerosol generating device according to claim 1, characterized in that: The aerosol generating device further includes a battery core configured to independently provide power to one of the first heater, the second heater, and the third heater, so that one of the three heaters works independently or at least two of the three heaters work simultaneously.

3. The aerosol generating device according to claim 1, characterized in that: Also includes: a bracket for holding the first heater and the second heater; The base is arranged near the bottom of the shell; the base is used to hold the second end of the third heater and is detachably connected to the bracket.

4. The aerosol generating device according to claim 3, characterized in that: The bracket is provided with a first fastener, and the base is provided with a first fastening hole. The first fastener cooperates with the first fastening hole so that the base and the bracket are detachably connected.

5. The aerosol generating device according to claim 3, characterized in that: The second heating assembly further includes a base, which is used to hold the second end of the third heater; the base is held on the base.

6. The aerosol generating device according to claim 5, characterized in that: It also includes a connecting member fixedly connected to the base, and the base is held on the connecting member and the base.

7. The aerosol generating device according to claim 3, characterized in that: The bracket includes a first bracket and a second bracket that are detachably connected, the first bracket is used to hold the first heater, and the second bracket is used to hold the second heater.

8. The aerosol generating device according to claim 7, characterized in that: The first bracket is provided with a second clamping hole, the second bracket is provided with a second clamping piece, and the second clamping piece cooperates with the second clamping hole so that the first bracket and the second bracket are detachably connected.

9. The aerosol generating device according to claim 7, characterized in that: The first thermal insulation member is disposed between the first support and the first heater, and the second thermal insulation member is disposed between the second support and the second heater.

10. The aerosol generating device according to claim 3, characterized in that: It also includes a top seat arranged near the top of the shell, and the bracket is fixedly connected to the top seat.

Images