CN111436663A - Aerosol generating device with surrounding type airflow - Google Patents
Aerosol generating device with surrounding type airflow Download PDFInfo
- Publication number
- CN111436663A CN111436663A CN202010418053.0A CN202010418053A CN111436663A CN 111436663 A CN111436663 A CN 111436663A CN 202010418053 A CN202010418053 A CN 202010418053A CN 111436663 A CN111436663 A CN 111436663A
- Authority
- CN
- China
- Prior art keywords
- aerosol
- forming substrate
- generating device
- upper housing
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000443 aerosol Substances 0.000 title claims description 26
- 239000000758 substrate Substances 0.000 claims abstract description 79
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Abstract
The present invention provides an aerosol-generating device having a wraparound airflow, comprising: an upper housing, a collection portion and a heat generating component, wherein the upper housing has an inner wall and an outer wall, the inner wall defining a cavity for receiving the aerosol-forming substrate, the cavity is configured to be approximately elliptical cylindrical, the proximal end of the upper housing forming an elliptical opening to receive the aerosol-forming substrate, the bottom surface of the collecting portion is provided with at least one opening, the bottom surface of the collecting portion is further provided with a raised portion to support the aerosol-forming substrate, the heat generating component penetrates through the aperture into the interior of the aerosol-forming substrate contained within the cavity, a first air flow channel surrounding the aerosol-forming substrate is formed between the outer wrapper of the aerosol-forming substrate and the inner wall of the upper housing, a second air flow channel is formed inside the aerosol-forming substrate, and forming a third air flow passage communicating between the first air flow passage and the second air flow passage.
Description
Technical Field
The present invention relates to an aerosol-generating device for heating an aerosol-forming substrate, and in particular to an aerosol-generating device having a circumferential gas flow.
Background
Currently, a variety of handheld aerosol-generating devices having a heat generating component for an aerosol-forming substrate are disclosed in the prior art. Typically, aerosol-generating devices require the aerosol-forming substrate placed therein to be heated to a temperature of a few hundred degrees celsius in order to release volatile compounds that can form an aerosol. Since the heating temperature during smoking is very high, this results in excessive temperatures in the upper housing part of the aerosol-generating device and also presents the problem of dissipating heat too quickly from the body of the aerosol-forming substrate article.
Chinese patent CN 104135881B discloses an aerosol generating device and system with improved airflow. The aerosol generating device achieves the purposes of preventing the upper shell from being excessively hot and enabling a consumer to obtain comfortable holding experience by arranging the specific air flow path. In particular, the aerosol-generating device has a first air flow channel extending from the air inlet to a distal end of the cavity, wherein the first air flow channel extends along at least a portion of the longitudinal extension of the cavity between the inner and outer surfaces of the upper housing, and a second air flow channel extending from the distal end of the cavity to the proximal end of the cavity, and the distal end of the first air flow channel and the distal end of the second air flow channel meet at an air outlet disposed about the base of the heat-generating component element.
The technical scheme of the patent can effectively solve the problem that the temperature of the upper shell of the handheld aerosol generating device is overhigh during smoking, but the problem of heat dissipation of the aerosol forming substrate body does not relate to a solution.
Disclosure of Invention
The present invention addresses the deficiencies in the prior art by providing an aerosol-generating device having a wraparound airflow.
An aerosol-generating device of the invention having a wraparound airflow, comprising: an upper housing, a collection portion and a heat generating component, wherein the upper housing has an inner wall and an outer wall, the inner wall defining a cavity for receiving the aerosol-forming substrate, the cavity being configured in an approximately elliptical cylinder, the proximal end of the upper housing forming an elliptical opening to receive the aerosol-forming substrate,
the collecting part is arranged at the far end of the upper shell opposite to the near end and used for collecting smoke residue or debris falling when the exhausted aerosol forming base material is replaced, the bottom surface of the collecting part is provided with at least one opening, the bottom surface of the collecting part is also provided with a bulge part for supporting the aerosol forming base material contained in the cavity to form a gap below the end surface of the aerosol forming base material,
the heat generating component penetrates through the aperture into the interior of the aerosol-forming substrate contained within the cavity,
a first air flow channel surrounding the aerosol-forming substrate is formed between the outer wrap of the aerosol-forming substrate and the inner wall of the upper housing, the air flow of the first air flow channel flowing from the proximal end to the distal end of the upper housing; the aerosol-forming substrate is internally provided with a second airflow channel, airflow of the second airflow channel flows from the far end to the near end of the upper shell, the gap below the end face of the aerosol-forming substrate forms a third airflow channel, and the third airflow channel is communicated with the first airflow channel and the second airflow channel.
Preferably, the shortest inner diameter of the elliptical cylinder cavity is arranged to match the outer diameter of the aerosol-forming substrate and the longest inner diameter of the elliptical cylinder cavity is arranged to be 0.5 to 5 mm longer than the outer diameter of the aerosol-forming substrate.
Preferably, the protrusion of the bottom surface of the collecting part is formed as an annular protrusion centered on the opening.
Preferably, the annular projection is further provided with a plurality of grooves in the radial direction.
Preferably, the collecting part further has a side wall extending from a bottom surface, and the bottom surface and the side wall are formed into a cylindrical shape with one end open, and are detachably connected to the aerosol-generating device at the other end.
Preferably, the side wall of the collecting part may be accommodated in a narrow gap between the outer wall and the inner wall of the upper case.
Preferably, the clamping force of the cavity against the aerosol-forming substrate is set to 0.5N-8N.
Preferably, the suction resistance provided by the first air flow channel, the second air flow channel and the third air flow channel is 200-1000 Pa.
Preferably, the invention further comprises a lower housing, the distal end of the upper housing being releasably connected to the lower housing of the aerosol-generating device.
The invention has the following beneficial effects: the first air flow channel formed between the aerosol forming substrate and the inner wall of the upper shell and surrounding the aerosol forming substrate is greatly reduced in contact area between the outer wrapping layer of the aerosol forming substrate and the inner wall of the upper shell, and air in the first air flow channel can play a role in isolating heat conduction, so that heat of the aerosol forming substrate body can be effectively reduced to transfer to the upper shell of the aerosol generating device, the temperature of the upper shell of the aerosol generating device can be reduced while heat loss of the aerosol forming substrate body is avoided, and comfortable holding experience is brought to a user during use.
Drawings
Figure 1 is a cross-sectional view of an aerosol-generating device having a wraparound airflow in accordance with an embodiment of the invention.
Figure 2 is a top view of an upper housing of an aerosol-generating device with wraparound airflow according to an embodiment of the invention.
Fig. 3 is a schematic view of a collecting portion of an aerosol-generating device with a wraparound airflow according to an embodiment of the invention, with (a) a top view, (b) a side view, and (c) a perspective view.
Figure 4 is a schematic view of a collecting portion of an aerosol-generating device having a wraparound airflow according to another embodiment of the invention,
(a) is a top view, (b) is a side view, and (c) is a perspective view.
Figure 5 is a schematic diagram of the overall structure of an aerosol-generating device with wraparound airflow in accordance with an embodiment of the invention.
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 inventive contents of the present patent application 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 embodiments described above, and it is intended to cover all modifications and variations of the present invention which fall within the spirit and scope of the invention.
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.
Figure 1 is a cross-sectional view of an aerosol-generating device having a wraparound airflow in accordance with a first embodiment of the invention. As shown in fig. 1, an aerosol-generating device of the present invention having a wraparound airflow comprises: an upper case 1, a collecting part 2, and a heat generating component 3.
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 aerosol-generating device further comprises a lower housing 8 (see figure 5), the distal end of the upper housing 1 being releasably connected to the lower housing 8 of the aerosol-generating device. The upper housing 1 and the lower housing 8 together form the outer shell of the aerosol-generating device. The upper housing 1 has an inner wall 11 and an outer wall 12. The inner wall 11 defines a cavity 13 for receiving the aerosol-forming substrate 4. The cavity 13 is formed in an approximately elliptic cylindrical shape between the proximal end and the distal end of the upper housing 1. The proximal end of the upper housing 1 forms an oval opening to receive the aerosol-forming substrate 4.
A collection portion 2 is provided in the upper housing 1 at a distal end opposite the proximal end for collecting debris that falls off when the spent aerosol-forming substrate 4 is replaced. The bottom surface of the collecting part 2 is provided with at least one opening 21. The bottom surface 22 of the collecting portion 2 is further provided with a raised portion 23 to support the aerosol-forming substrate 4 received within the cavity 13 such that a void (space) is formed below the end face of the aerosol-forming substrate 4. Thus, a third air flow channel may be formed connecting the first and second air flow channels below the end face of the aerosol-forming substrate 4.
Here, when the exhausted aerosol-forming substrate 4 needs to be replaced, the smoking article is first pulled out directly from the cavity 13 of the aerosol-generating device, the upper housing 1 is then detached from the lower housing of the aerosol-generating device by rotation or pulling, and the collecting portion 2 is then detached from the aerosol-generating device, so that the residue or debris remaining in the collecting portion can be cleaned.
The heat generating component 3 penetrates through the opening 21 into the interior of the aerosol-forming substrate 4 contained within the cavity 13. The heater assembly includes a base 31 and a heater pin 32 extending from the base. The heating needles 32 pass through the apertures 21 into the interior of the aerosol-forming substrate 4, thereby heating the aerosol-forming substrate 4 to form an aerosol.
When the user draws on the aerosol-generating device, a first airflow channel is formed around the aerosol-forming substrate 4 between the outer casing 41 of the aerosol-forming substrate 4 and the inner wall 11 of the upper housing 1, the airflow of which flows from the proximal end to the distal end of the upper housing 1. The interior of the aerosol-forming substrate 4 forms a second airflow channel with an airflow flowing from the distal end to the proximal end of the upper housing 1. The gap 24 between the bottom surface of the collecting portion 2 and the end surface 4 of the aerosol-forming substrate forms a third air flow channel which communicates the first and second air flow channels. The suction resistance provided by the first air flow channel, the second air flow channel and the third air flow channel is 200-1000 Pa.
Figure 2 is a top view of an upper housing of an aerosol-generating device with wraparound airflow according to an embodiment of the invention. As shown in fig. 2, the shortest inner diameter of the elliptical cylindrical cavity 13 is preferably arranged to match the outer diameter of the aerosol-forming substrate 4 to facilitate placement of the aerosol-forming substrate 4 into the cavity 13 and to hold the aerosol-forming substrate 4 snugly. In particular, the clamping force of the cavity 13 on the aerosol-forming substrate 4 may be in the range 0.5N-8N. The longest inner diameter of the elliptic cylindrical cavity 13 is set to be 0.5 to 5 mm longer than the outer diameter of the aerosol-forming substrate 4. By providing this specifically shaped cavity 13, it is possible both to conveniently receive and secure the aerosol-forming substrate 4 without the need for additional clamping means, and to form a space between the outer wrapper of the aerosol-forming substrate 4 and the inner wall 11 of the upper shell 1 through which a first air flow channel is formed around the aerosol-forming substrate 4. When a user draws on the aerosol-forming substrate in the aerosol-generating device, the airflow in the first airflow channel flows from the proximal end to the distal end, forming an airflow around the aerosol-forming substrate 4 between the aerosol-forming substrate 4 and the inner wall 11 of the upper housing 1.
Fig. 3 is a schematic view of a collecting portion of an aerosol-generating device with a wraparound airflow according to an embodiment of the invention, with (a) a top view, (b) a side view, and (c) a perspective view. Fig. 4 is a schematic view of a collecting portion of an aerosol-generating device with a wraparound airflow according to another embodiment of the invention, wherein (a) is a top view, (b) is a side view, and (c) is a perspective view. As shown in fig. 3-4, in a preferred embodiment, the annular protrusion 23 is formed as an annular step centered on the opening 21. The height of the annular step 23 may be 1mm to 3 mm. The annular step 23 is further formed with a plurality of grooves 24 in the radial direction to facilitate the gas flow of the first gas flow path into the second gas flow path. Preferably, there may be two grooves or three grooves. In other embodiments, the raised portion 23 may be provided as a plurality of bumps or a plurality of strip-shaped protrusions, etc. to support the end face of the aerosol-forming substrate 4, so that a gap, i.e. a third airflow channel, is preferably formed between the end face of the aerosol-forming substrate 4 and the bottom surface of the collecting portion 2.
The collecting part 2 further has a side wall 25 extending perpendicularly from the bottom surface 22, and is formed in a cylindrical shape with one end open, and is detachably connected to the aerosol-generating device at the other end. The connection mode can be a buckling connection mode, a threaded connection mode or a magnetic attraction connection mode. The side wall 25 is also provided with longitudinal ventilation openings 26. The side wall 25 of the collecting section 2 can be accommodated in the narrow gap between the outer wall 12 and the inner wall 11 of the upper casing 1 (see fig. 1).
Figure 5 is a schematic diagram of the overall structure of an aerosol-generating device with wraparound airflow in accordance with an embodiment of the invention. Elements that are not relevant for an understanding of the present invention have been omitted here to simplify fig. 5. As shown in fig. 5, the aerosol-generating device includes the upper case 1, the collecting section 2, the heat generating component 3, the controller 5, the user interface 6, the power supply 7, and the lower case 8. The aerosol-forming substrate 4 is accommodated in the cavity (collection portion 2) of the upper case 1 to heat the aerosol-forming substrate 4 by the heater element 3. The aerosol-forming substrate 4 releases a range of volatile compounds at different temperatures. The upper case 1 and the lower case 8 together form an outer casing, and a power supply 7, such as a rechargeable lithium ion battery, is also included in the outer casing. The controller 5 is connected to the heater block 3, the button member 6, and the power supply 7. The controller 5 controls the power supplied to the heat-generating component 3 to adjust the heat-generating temperature, typically heating the aerosol-forming substrate to a temperature between 250 and 450 degrees celsius.
Based on the structure of the invention, the air flow surrounding the aerosol-forming substrate is formed between the outer wrapping layer and the inner wall of the aerosol-forming substrate, so that the contact area between the outer wrapping layer of the aerosol-forming substrate and the inner wall of the shell of the upper shell is greatly reduced, the air in the first air flow channel can play a role in isolating heat conduction, and the excess heat is removed by the entering air before the entering air reaches the upper shell, so that the transfer of the heat of the aerosol-forming substrate to the upper shell and the shell of the sol generation device can be effectively reduced, the temperature of the shell of the sol generation device can be reduced while the heat loss of the aerosol-forming substrate is avoided, and the comfortable holding experience is brought to a user during the use.
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 aerosol-generating device having a wraparound airflow, the aerosol-generating device comprising: an upper shell, a collecting part and a heating component, wherein
The upper housing having an inner wall and an outer wall, the inner wall defining a cavity for receiving the aerosol-forming substrate, the cavity being configured in an approximately elliptical cylinder, the proximal end of the upper housing forming an elliptical opening to receive the aerosol-forming substrate,
the collecting part is arranged at the far end of the upper shell opposite to the near end and used for collecting smoke residue or debris falling when the exhausted aerosol forming base material is replaced, the bottom surface of the collecting part is provided with at least one opening, the bottom surface of the collecting part is also provided with a bulge part for supporting the aerosol forming base material contained in the cavity to form a gap below the end surface of the aerosol forming base material,
the heat generating component penetrates through the aperture into the interior of the aerosol-forming substrate contained within the cavity,
a first air flow channel surrounding the aerosol-forming substrate is formed between the outer wrap of the aerosol-forming substrate and the inner wall of the upper housing, the air flow of the first air flow channel flowing from the proximal end to the distal end of the upper housing; the interior of the aerosol-forming substrate forms a second airflow channel, the airflow of which flows from the distal end to the proximal end of the upper housing; the void below the end face of the aerosol-forming substrate forms a third airflow channel that communicates the first airflow channel and the second airflow channel.
2. An aerosol-generating device according to claim 1, wherein the shortest inner diameter of the elliptical cylinder cavity is arranged to match the outer diameter of the aerosol-forming substrate and the longest inner diameter of the elliptical cylinder cavity is arranged to be 0.5-5 mm longer than the outer diameter of the aerosol-forming substrate.
3. An aerosol-generating device according to claim 1, wherein the projection of the collecting portion base surface is formed as an annular projection centred on the aperture.
4. An aerosol-generating device according to claim 3, wherein the annular protrusion is further provided with a plurality of grooves in a radial direction.
5. An aerosol-generating device according to claim 1, wherein the collecting portion further comprises a side wall extending from a bottom surface, the bottom surface and the side wall being configured as a cylinder open at one end and being detachably connected to the aerosol-generating device at the other end.
6. An aerosol-generating device according to claim 4, wherein the side walls of the collecting portion are receivable in a narrow gap between the outer and inner walls of the upper housing.
7. An aerosol-generating device according to claim 1, wherein the clamping force of the cavity against the aerosol-forming substrate is set to 0.5N-8N.
8. An aerosol-generating device according to claim 1 in which the first, second and third air flow channels together provide a resistance to draw of 200 and 1000 Pa.
9. An aerosol-generating device according to claim 1, further comprising a lower housing, the distal end of the upper housing being removably connected to the lower housing of the aerosol-generating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010418053.0A CN111436663A (en) | 2020-05-18 | 2020-05-18 | Aerosol generating device with surrounding type airflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010418053.0A CN111436663A (en) | 2020-05-18 | 2020-05-18 | Aerosol generating device with surrounding type airflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111436663A true CN111436663A (en) | 2020-07-24 |
Family
ID=71655261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010418053.0A Pending CN111436663A (en) | 2020-05-18 | 2020-05-18 | Aerosol generating device with surrounding type airflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111436663A (en) |
Cited By (3)
| 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 |
| WO2022111318A1 (en) * | 2020-11-26 | 2022-06-02 | 深圳麦时科技有限公司 | Heater, and heating atomization apparatus |
| WO2022116563A1 (en) * | 2020-12-01 | 2022-06-09 | 深圳市卓力能技术有限公司 | Airflow channel structure and aerosol generation device |
-
2020
- 2020-05-18 CN CN202010418053.0A patent/CN111436663A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022111318A1 (en) * | 2020-11-26 | 2022-06-02 | 深圳麦时科技有限公司 | Heater, and heating atomization apparatus |
| WO2022116563A1 (en) * | 2020-12-01 | 2022-06-09 | 深圳市卓力能技术有限公司 | Airflow channel structure and aerosol generation device |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11805813B2 (en) | Heater assembly and container | |
| CN111436663A (en) | Aerosol generating device with surrounding type airflow | |
| TWI739172B (en) | Aerosol generation device, and heating chamber therefor, and aerosol generation system | |
| JP6507248B2 (en) | Aerosol supply device | |
| TWI767147B (en) | Aerosol generation device and heating chamber and heating system therefor and method for manufacturing heating chamber | |
| ES2905680T3 (en) | Aerosol generating device and heating chamber therefor | |
| TWI752359B (en) | Aerosol generation device, and heating chamber therefor | |
| JP6006806B2 (en) | Polygonal aerosol generator and system | |
| CN212414729U (en) | Aerosol-generating device with wraparound airflow | |
| JP2020072700A5 (en) | ||
| CN109068748A (en) | Equipment for heating smokeable material | |
| BR112019015982A2 (en) | INDUCTIVELY HEATED AEROSOL GENERATING DEVICE UNDERSTANDING A REUSABLE SUSCEPTOR | |
| KR20210075113A (en) | Aerosol-generating device and heating chamber for aerosol-generating device | |
| US11744295B2 (en) | Releasable cap for a vaporization assembly of a portable electronic vaporizing device | |
| JP2023522200A (en) | aerosol generator | |
| CN114867373A (en) | Aerosol-generating device comprising a chamber for receiving an aerosol-generating article | |
| KR20210076937A (en) | aerosol generating system | |
| JP2023166610A (en) | Casing for device, device, and method | |
| CN216393068U (en) | Air heating aerosol generating device | |
| CN114081212A (en) | Aerosol generating device based on hot air flow heating | |
| US20220273035A1 (en) | Seal member, seal assembly, electronic vaporization device, and method for mounting seal member | |
| JP2022535377A (en) | aerosol generator | |
| WO2024044903A1 (en) | Aerosol generating apparatus and heating device thereof | |
| JPH05168515A (en) | Steam hair setter | |
| KR102542755B1 (en) | Heater shell of heater assembly for aerosol generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231117 Address after: No.6 Shengli Road, Chongchuan District, Nantong City, Jiangsu Province Applicant after: NANTONG CIGARETTE FILTER Co.,Ltd. Address before: 226003 8th floor, building 2, no.388, Yongxing Avenue, Gangzha District, Nantong City, Jiangsu Province Applicant before: NANTONG JIN YUAN NEW MATERIALS Co.,Ltd. |
|
| TA01 | Transfer of patent application right |