CN216393068U - Air heating aerosol generating device - Google Patents
Air heating aerosol generating device Download PDFInfo
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- CN216393068U CN216393068U CN202123036413.XU CN202123036413U CN216393068U CN 216393068 U CN216393068 U CN 216393068U CN 202123036413 U CN202123036413 U CN 202123036413U CN 216393068 U CN216393068 U CN 216393068U
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- aerosol
- air flow
- generating device
- wall
- cylinder body
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 58
- 239000000443 aerosol Substances 0.000 title abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 11
- 235000019504 cigarettes Nutrition 0.000 description 12
- 239000010410 layer Substances 0.000 description 11
- 241000208125 Nicotiana Species 0.000 description 7
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 7
- 239000000779 smoke Substances 0.000 description 7
- 230000000391 smoking effect Effects 0.000 description 5
- 239000012634 fragment Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Abstract
The present invention provides an air heated aerosol generating device comprising: an upper shell, a lower shell, an accommodating part and a heating component, wherein the accommodating part and the heating component are arranged in the upper shell, wherein the accommodating part is provided with an opening, a side wall and a bottom surface, a cavity for accommodating aerosol forming substrates is limited by the side wall, a gap is formed between the side wall and the upper shell and can be used for air flow to pass through, a first air flow inlet is arranged at the position of the side wall close to the bottom surface, the heating component is arranged below the accommodating part and comprises a cylinder body and a heating circuit, a gap is formed between the outer wall of the cylinder body and the upper shell and can be used for air flow to pass through, a second air flow inlet is arranged at one end of the cylinder body far away from the accommodating part, and an air flow outlet is arranged at one end of the cylinder body close to the accommodating part, and an annular partition part is arranged between the outer wall surface of the cylinder and the upper shell, a third airflow inlet is arranged at the position of the upper shell corresponding to the second airflow inlet, and the upper shell is detachably connected with the lower shell.
Description
Technical Field
The present invention relates to an aerosol-generating device, in particular an air-heated aerosol-generating device.
Background
Currently, most of the existing aerosol generating devices adopt a central heating element or a peripheral heating element to directly heat cigarette cigarettes in a thermal contact manner, and the cigarette cigarettes are heated in a heat conduction manner. However, the central heating method has the problem of uneven heating and has the requirement of arrangement sequence of tobacco base materials of tobacco sections of cigarettes. Although the heating uniformity of the circumferential heating mode is good, the circumferential heating mode has the defects of heavy paper burnt smell and influence on the smoking experience when a consumer smokes.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies in the prior art, the present invention provides an air heated aerosol generating device.
The air-heated aerosol-generating device of the present invention comprises: go up casing, lower casing, accommodate part and heating element, the accommodate part with heating element set up in the upper casing, wherein
The accommodating part is provided with an opening, a side wall and a bottom surface, a cavity for accommodating aerosol-forming base materials is defined by the side wall, the aerosol-forming base materials are received by the opening, a gap is formed between the side wall and the upper shell and can be used for airflow to pass through, a first airflow inlet is arranged at the position, close to the bottom surface, of the side wall,
the heating component is arranged below the containing part and comprises a cylinder body and a heating circuit arranged on the inner wall of the cylinder body, a gap is formed between the outer wall of the cylinder body and the upper shell and can be used for air flow to pass through, a second air flow inlet is arranged at one end of the cylinder body, which is far away from the containing part, an air flow outlet is arranged at one end of the cylinder body, which is close to the containing part, an annular separating part is also arranged between the outer wall surface of the cylinder body and the upper shell, so that the second air flow inlet is positioned below the annular separating part, and the air flow outlet is positioned above the annular separating part,
the upper shell is also provided with a third airflow inlet at the position corresponding to the second airflow inlet,
the lower housing has a power source therein to provide power to the heating circuit, and the upper housing is removably connected to the lower housing.
Preferably, a first air flow channel is formed inside the heating component, a second air flow channel is formed by a gap between the upper shell and the outer wall of the cylinder part of the heating component and the side wall of the accommodating part, and a third air flow channel is formed inside the aerosol-forming substrate.
Preferably, the heating circuit is composed of a resistance wire, and the resistance wire is spirally arranged on the inner wall of the cylinder.
Preferably, the heating circuit is formed by printing a conductive paste pattern on an inner wall of the cylinder.
Preferably, the heating circuit is formed by attaching a support carrying a conductive paste pattern to an inner wall of the cylinder.
Preferably, the bottom surface of the accommodating part is provided with an annular convex part which takes the center of the circle of the bottom surface as the center.
Preferably, the annular projection is further provided with a plurality of grooves in the radial direction.
Preferably, the upper shell has a double-layer structure including an outer wall layer and an inner wall layer, an annular slit is formed between the outer wall layer and the inner wall layer, the annular slit has a fourth airflow inlet at one end close to the mouth of the user, and the other end of the annular slit is communicated with the third airflow inlet.
Preferably, an insulation assembly is further arranged between the upper shell and the lower shell.
The utility model has the beneficial effects that: the aerosol generating device of the utility model heats the cigarette by adopting hot air flow, the tobacco section of the heated cigarette is fully heated, no special requirement is required for the arrangement mode of the tobacco base material, the cigarette production difficulty is reduced, and paper burnt flavor can not be generated because the outer surface of the heated cigarette is not directly heated, thereby improving the smoking experience.
Drawings
Figure 1 is a schematic diagram of the overall structure of an aerosol-generating device heated by a stream of hot air according to one embodiment of the present invention.
Fig. 2 is a schematic structural view of a housing of an air-heated aerosol-generating device according to an embodiment of the present invention, wherein (a) is a top view and (b) is a perspective view.
Figure 3 is a schematic diagram of a heating circuit of an aerosol-generating device heated by a flow of heated air according to one embodiment of the present invention.
Figure 4 is a schematic view of an aerosol-generating device heated by a stream of hot air according to another embodiment of the utility model.
Detailed Description
The embodiments of the present invention will be described below with reference to the drawings attached to the specification. It should be noted that the embodiments mentioned in the present description are not exhaustive and do not represent the only embodiments of the present invention. The following examples are given for the purpose of clearly illustrating the utility model and are not intended to limit the embodiments thereof. It will be apparent to those skilled in the art that various changes and modifications can be made in the embodiment without departing from the spirit and scope of the utility model, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the utility model.
An "aerosol-generating device" in the present invention relates to a device that interacts with an aerosol-forming substrate to produce an aerosol (smoke or aerosol). The aerosol-forming substrate may be part of an aerosol generating article (e.g. a smoking article). The aerosol-generating device may comprise one or more components for supplying energy from an energy source to the aerosol-forming substrate to produce an aerosol, which is inhalable directly into the user's lungs through the user's mouth.
An "aerosol-forming substrate" in the present invention is a substrate capable of releasing volatile compounds that can form an aerosol. Such volatile compounds may be released by heating the aerosol-forming substrate. For example, the "aerosol-forming substrate" may be a wick substrate.
As shown in fig. 1 to 3, an air heating aerosol generating device according to the present invention includes: the heating device comprises an upper shell 1, a lower shell 2, a containing part 3 and a heating component 4, wherein the containing part 3 and the heating component 4 are arranged in the upper shell 1. The upper housing 1 is generally cylindrical in shape with one end being the portion adjacent the mouth of the user. This portion is referred to herein as the "proximal end" or "proximal end" of the upper housing, while the portion opposite the "proximal end" is referred to as the "distal end" or "distal end" of the upper housing. The distal end of the upper housing 1 is detachably connected to the lower housing 2. The upper case 1 and the lower case 2 together constitute a case (outer case) of the aerosol-generating device.
The housing 3 has an opening 31, a side wall 32, and a bottom surface 33. A cavity for receiving an aerosol-forming substrate 5 is defined by the side wall 32, the aerosol-forming substrate 5 being received by the opening 31 from the proximal end of the upper housing 1, a void 6 (in particular a portion of the void 6) being formed between the side wall 32 and the upper housing 1 for the airflow to pass through, and a first airflow inlet 34 being provided in the side wall 32 adjacent the bottom surface 33. The first air flow inlet 34 may be a plurality of openings or holes along the sidewall. Other gas flow inlets or outlets, mentioned below, may employ this configuration.
The heating element 4 is disposed below the accommodating portion 3, and specifically, the heating element 4 is fixedly connected to the accommodating portion 3. The heating element 4 includes a cylinder 41 and a heating circuit 42 disposed on an inner wall of the cylinder 41. Preferably, the cylinder 41 of the heating element 4 is a ceramic cylinder to perform a heat insulation function and reduce the loss of internal heat. The heating circuit 42 is connected to a controller (not shown) to control heating power, heating time, and the like of the heating circuit.
A gap 6 (specifically, another part of the gap 6) formed between the outer wall of the cylinder and the upper shell can allow airflow to pass through. That is, the gap 6 is an annular space extending from the outside of the accommodating portion 2 to the outside of the heat generating component 4, that is, between the outside of both the accommodating portion 2 and the heat generating component 4 and the upper case 1. The end of the cylinder 41 far away from the accommodating part 3 is provided with a second airflow inlet 43, the end of the cylinder 41 near the accommodating part 3 is provided with an airflow outlet 44, and an annular partition part 7 is further arranged between the outer wall surface of the cylinder and the shell, so that the second airflow inlet 43 is positioned below the annular partition part 7, and the airflow outlet 44 is positioned above the annular partition part 7. That is, the annular partition 7 partitions the gap 6 into upper and lower portions, and blocks the flow of air. The annular partition 7 may be a partition plate extending from the casing (upper casing) 1, that is, integrally formed with the upper casing 1, or may be a separate partition member, which is preferably capable of blocking the flow of air between the upper and lower portions of the gap 6.
The upper case 1 further has a third air inlet 11 at a position corresponding to the second air inlet 43.
With the above structure of the present invention, as shown in fig. 1, when a user sucks the aerosol generating device, the external air flows into the gap 6 from the third air flow inlet 11 and flows into the heat generating component 4 from the second air flow inlet 43, a first air flow channel is formed inside the heat generating component 4, the air is heated inside the heat generating component 4 to form a hot air flow, and the hot air flow flows out from the air flow outlet 44. The hot air flow then enters the gap 6, i.e. the second air flow channel, in particular the part above the annular partition 7 of the gap 6, after passing through the second air flow channel, it enters the aerosol-forming substrate 5 through the first air flow inlet 44, forming a third air flow channel inside said aerosol-forming substrate 5, so that the hot air flow heats the aerosol-forming substrate 5 to form smoke that finally enters the mouth of the user.
The bottom surface structure of the accommodating portion will be described below with specific reference to fig. 2. As shown in fig. 2, the bottom surface 33 of the housing portion 3 has an annular projection 35 centered on the center of the bottom surface. In a preferred embodiment, the annular protrusion 35 is formed as an annular step centered on the center of the bottom surface. The height of the annular step can be 1mm to 3 mm. The annular step is also formed with a plurality of grooves 36 in the radial direction to facilitate the flow of the second air flow path into the third air flow path. Preferably, there may be two grooves or three grooves. In other embodiments, the protrusions 35 may also be provided as a plurality of bumps or a plurality of strip-like protrusions or the like, so as to be able to support the end face of the aerosol-forming substrate 5, preferably such that a certain space is formed between the end face of the aerosol-forming substrate 4 and the bottom face 33 of the receptacle 3. At the same time, this space may also function to collect the smoke residue or debris that falls off the end face of the aerosol-forming substrate 5, which may be conveniently cleaned after the user has finished removing the aerosol-forming substrate 5 after smoking.
The structure of the heating circuit of the heat generating component is explained below with reference to fig. 3. As shown in fig. 3, in a preferred embodiment, the heating circuit 42 can be a resistance wire, which is in a spiral structure and is disposed on the inner wall of the cylinder 41. In another embodiment, the heating circuit 42 may be formed by printing a conductive paste pattern on the inner wall of the cylinder. In another embodiment, the heating circuit 42 may be formed by attaching a carrier carrying a conductive paste pattern to the inner wall of the cylinder.
As shown in fig. 1, the aerosol-generating device further comprises a power supply 8 disposed within the lower housing 2. Preferably, a heat insulation member 9 is further provided between the upper casing 1 and the lower casing 2 to insulate the heat of the heat generating component 4 in the upper casing 1, and to ensure the safety of components such as a power supply in the lower casing 2. The aerosol generating device adopts hot air flow for heating, so that the tobacco section of the heated cigarette is sufficiently heated, no special requirement is required for the arrangement mode of the tobacco base materials, the cigarette production difficulty is reduced, and paper burnt flavor cannot be generated because the outer surface of the heated cigarette is not directly heated, so that the smoking experience can be improved. In addition, according to the heating mode of the aerosol generating device, the heating needle or the heating sheet does not penetrate into the tobacco base material any more, so that the falling of the smoke residue or the fragments can be reduced, and even if a small amount of smoke residue or fragments exist, the smoke residue or the fragments cannot enter the heating component to cause the failure of the heating component, so that the service life of the aerosol generating device can be prolonged.
Figure 4 is a cross-sectional view of an aerosol-generating device heated by a stream of heated air according to another embodiment of the utility model. As shown in fig. 4, the present embodiment is different from the embodiment shown in fig. 1 in that the case is changed from the single-layer structure shown in fig. 1 to the double-layer structure. Specifically, the upper shell 1' has a double-layer structure including an outer wall layer 13 and an inner wall layer 14, an annular slit 15 is formed between the outer wall layer 13 and the inner wall layer 14, the annular slit 15 has a fourth airflow inlet 16 at one end near the mouth of the user, and the other end 17 of the annular slit 15 is communicated with the third airflow inlet 11. That is, the annular slit 15 forms a fourth airflow channel, and one airflow channel is added on the basis of the original three airflow channels.
With the structure shown in fig. 4, when a user sucks on the aerosol generating device, the external air flow firstly enters the annular slit 15, i.e. the fourth air flow channel, from the fourth air flow inlet 16, the air flow reaches the bottom of the annular slit 15, i.e. the other end 17, then enters the gap 6 from the third air flow inlet 11, and flows into the heat generating component 4 from the second air flow inlet 43, the first air flow channel is formed inside the heat generating component 4, the air is heated inside the heat generating component 4 to form a hot air flow, and the hot air flow flows out from the air flow outlet 44. The hot air flow then enters the gap 6, i.e. the second air flow channel, in particular the part above the annular partition 7 of the gap 6, after passing through the second air flow channel, it enters the aerosol-forming substrate 5 through the first air flow inlet 44, forming a third air flow channel inside said aerosol-forming substrate 5, so that the hot air flow heats the aerosol-forming substrate 5 to form smoke that finally enters the mouth of the user. By means of the structure of this embodiment, on the basis of obtaining the aforementioned beneficial effects of the hot air stream heating the aerosol-forming substrate, the temperature of the outer wall of the housing on the sol-generating device may also be effectively reduced, thereby giving the user a comfortable gripping experience during use of the aerosol-generating device.
It will be apparent to those skilled in the art that the above embodiments are merely illustrative of the present invention and are not to be construed as limiting the present invention, and that changes and modifications to the above described embodiments may be made within the spirit and scope of the present invention as defined in the appended claims.
Claims (9)
1. An air heating aerosol-generating device, the aerosol-generating device comprising: go up casing, lower casing, accommodate part and heating element, the accommodate part with heating element set up in the upper casing, wherein
The accommodating part is provided with an opening, a side wall and a bottom surface, a cavity for accommodating aerosol-forming base materials is defined by the side wall, the aerosol-forming base materials are received by the opening, a gap is formed between the side wall and the upper shell and can be used for airflow to pass through, a first airflow inlet is arranged at the position, close to the bottom surface, of the side wall,
the heating component is arranged below the containing part and comprises a cylinder body and a heating circuit arranged on the inner wall of the cylinder body, a gap is formed between the outer wall of the cylinder body and the upper shell and can be used for air flow to pass through, a second air flow inlet is arranged at one end of the cylinder body, which is far away from the containing part, an air flow outlet is arranged at one end of the cylinder body, which is close to the containing part, an annular separating part is also arranged between the outer wall surface of the cylinder body and the upper shell, so that the second air flow inlet is positioned below the annular separating part, and the air flow outlet is positioned above the annular separating part,
the upper shell is also provided with a third airflow inlet at the position corresponding to the second airflow inlet,
the lower housing has a power source therein to provide power to the heating circuit, and the upper housing is removably connected to the lower housing.
2. An air-heated aerosol-generating device according to claim 1 in which the heater element has a first air flow passage formed therein, the space between the upper housing and the outer wall of the barrel portion of the heater element and the side wall of the receptacle has a second air flow passage formed therein, and the aerosol-forming substrate has a third air flow passage formed therein.
3. An air-heated aerosol-generating device according to claim 1 in which the heating circuit is constituted by a resistance wire formed helically to the inner wall of the cartridge.
4. An air-heated aerosol-generating device according to claim 1, in which the heating circuit is formed by printing a pattern of conductive paste on the inner wall of the cartridge.
5. An air-heated aerosol-generating device according to claim 1 in which the heating circuit is formed by affixing a support carrying a pattern of electrically conductive paste to the inner wall of the cartridge.
6. An aerosol-generating device according to claim 1, wherein the base surface of the receptacle has an annular projection centred on the centre of the base surface.
7. An aerosol-generating device according to claim 6, wherein the annular protrusion is further provided with a plurality of grooves in a radial direction.
8. An aerosol-generating device according to claim 1, wherein the upper housing has a double layer construction comprising an outer wall layer and an inner wall layer, an annular slit being formed between the outer wall layer and the inner wall layer, the annular slit having a fourth air flow inlet at an end adjacent the mouth of the user, the other end of the annular slit being in communication with the third air flow inlet.
9. An aerosol-generating device according to claim 1, further comprising an insulating assembly between the upper and lower housings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123036413.XU CN216393068U (en) | 2021-12-06 | 2021-12-06 | Air heating aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123036413.XU CN216393068U (en) | 2021-12-06 | 2021-12-06 | Air heating aerosol generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216393068U true CN216393068U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123036413.XU Active CN216393068U (en) | 2021-12-06 | 2021-12-06 | Air heating aerosol generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216393068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114081212A (en) * | 2021-12-16 | 2022-02-25 | 江苏中烟工业有限责任公司 | Aerosol generating device based on hot air flow heating |
-
2021
- 2021-12-06 CN CN202123036413.XU patent/CN216393068U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114081212A (en) * | 2021-12-16 | 2022-02-25 | 江苏中烟工业有限责任公司 | Aerosol generating device based on hot air flow heating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231123 Address after: No.6 Shengli Road, Chongchuan District, Nantong City, Jiangsu Province Patentee after: NANTONG CIGARETTE FILTER Co.,Ltd. Address before: No. 718, Xingfu Road, Nantong City, Jiangsu Province, 226003 Patentee before: NANTONG JIN YUAN NEW MATERIALS Co.,Ltd. |
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| TR01 | Transfer of patent right |