CN113712266A - Aerosol-generating device, susceptor and method of making - Google Patents
Aerosol-generating device, susceptor and method of making Download PDFInfo
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- CN113712266A CN113712266A CN202010451178.3A CN202010451178A CN113712266A CN 113712266 A CN113712266 A CN 113712266A CN 202010451178 A CN202010451178 A CN 202010451178A CN 113712266 A CN113712266 A CN 113712266A
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Abstract
The invention provides a receptor for an aerosol generating device, a preparation method and the aerosol generating device; wherein the susceptor is configured in a sheet shape and includes a first sheet body and a second sheet body opposing in a thickness direction; wherein the first sheet-like body and the sheet-like body form between them a receiving chamber extending in the axial direction, which receiving chamber is configured for receiving or enclosing a temperature sensor for sensing the temperature of the susceptor. According to the aerosol generating device and the susceptor, the temperature sensor is packaged or contained in the susceptor, so that on one hand, the influence of a magnetic field on the sensing part can be basically isolated, on the other hand, the susceptor and the temperature sensor can be integrated, and the mounting stability and the temperature measuring accuracy are improved; and meanwhile, the whole replacement and installation are convenient.
Description
Technical Field
The embodiment of the invention relates to the technical field of heating non-combustion smoking set, in particular to an aerosol generating device, a receptor and a preparation method.
Background
Smoking articles (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke. Attempts have been made to replace these tobacco-burning products by making products that release compounds without burning.
An example of such a product is a heating device that releases a compound by heating rather than burning the material. For example, the material may be tobacco or other non-tobacco products, which may or may not include nicotine. As another example, the prior art proposes an electromagnetic induction heating type heating apparatus, the configuration of which can be seen in fig. 1; when the smoking article 1 is received in the heating device, the susceptor 2 is penetrated by the alternating magnetic field generated by the induction coil 3 to inductively heat up and thereby heat the smoking article 1. To facilitate real-time monitoring of the temperature at which the smoking article 1 is heated during heating, the heating device employs a temperature sensor 4 in close proximity to the susceptor 2 to sense the real-time operating temperature of the susceptor 2 and adjusts parameters of the alternating magnetic field generated by the induction coil 3 in accordance with the results sensed by the temperature sensor 4 to maintain the susceptor 2 within a suitable heating temperature range.
In the implementation of the temperature detection of the temperature sensor 4, on one hand, the temperature sensor 4 is usually made of a thermistor metal material, and can generate heat under an alternating magnetic field; on the other hand, the temperature sensor 4 and the susceptor 2 which are made of metal materials respectively generate induced currents, so that the sensing signals output by the temperature sensor 4 are influenced, and the accuracy of the sensing signals is influenced.
Disclosure of Invention
In order to solve the problem of accuracy of temperature monitoring of an aerosol-generating device in the prior art, embodiments of the present invention provide a susceptor for an aerosol-generating device and an aerosol-generating device.
The present invention provides an aerosol-generating device for heating smokable material to generate an aerosol, comprising:
a chamber for receiving smokable material;
a magnetic field generator configured to generate a varying magnetic field;
a susceptor configured to be penetrated by a varying magnetic field to generate heat to thereby heat smokable material received within the chamber;
the susceptor is configured in a sheet shape extending in an axial direction of the chamber and includes first and second sheet-shaped bodies opposing in a thickness direction; wherein the content of the first and second substances,
the first and second sheets form between them a receiving cavity extending in the axial direction of the chamber, which is configured for receiving or enclosing a temperature sensor sensing the temperature of the susceptor.
In a preferred implementation, the first sheet-like body comprises: a first portion extending straight in an axial direction of the chamber, and a second portion formed by at least a part of the first portion being convex outward in a thickness direction;
the second portion of the first sheet and the second sheet form the receiving cavity therebetween.
In a preferred implementation, the chamber has an open end that removably receives smokable material;
at least a portion of the second portion has a cross-sectional area that decreases in a direction proximate the open end.
In a preferred implementation, the first sheet-like body further comprises a third portion extending widthwise outwardly from the first portion to provide support or retention of the susceptor by the third portion.
In a preferred implementation, the third portion of the first sheet has a larger cross-sectional area than the other portions.
In a preferred embodiment, the second portion is configured to be substantially triangular or circular arc-shaped in cross-section.
In a preferred implementation, the second lamina comprises: a fourth portion extending straight in an axial direction of the chamber, and a fifth portion formed by at least a portion of the fourth portion bulging outward in a thickness direction;
the fifth part is opposite to the second part, and the accommodating cavity is formed between the fifth part and the second part.
In a preferred embodiment, the temperature sensor further comprises an electrically conductive connection extending at least partially from the receiving cavity to outside the susceptor, whereby, in use, a temperature sensed by the temperature sensor is receivable by the electrically conductive connection.
In a preferred implementation, the second portion of the first sheet-like body is stamped from a flat sheet metal or sheet metal material.
In a preferred implementation, the chamber has an open end that removably receives smokable material;
at least a portion of the receiving cavity is configured as a tapered region that gradually decreases in cross-sectional area proximate the open end; the temperature sensor is housed or encapsulated in the tapered region.
The present invention also proposes a susceptor for an aerosol-generating device, the susceptor being configured to be penetrated by a varying magnetic field to generate heat to thereby heat an smokable material; the susceptor is configured in a sheet shape extending in an axial direction of the chamber, and includes:
a first sheet-like body and a second sheet-like body opposed in a thickness direction; wherein the content of the first and second substances,
the first and second sheets form between them a receiving cavity extending in the axial direction of the chamber, which is configured for receiving or enclosing a temperature sensor sensing the temperature of the susceptor.
The present invention further also proposes a method of making a susceptor for an aerosol-generating device, the susceptor being configured to be penetrated by a varying magnetic field to generate heat to thereby heat smokable material; the method comprises the following steps:
providing a first sheet-shaped body and a second sheet-shaped body which are opposite in the thickness direction, and forming a containing cavity extending in the length direction between the first sheet-shaped body and the second sheet-shaped body;
a temperature sensor for sensing the temperature of the susceptor is housed or encapsulated in the housing chamber.
According to the aerosol generating device and the susceptor, the temperature sensor is packaged or contained in the susceptor, so that on one hand, the influence of a magnetic field on the sensing part can be basically isolated, on the other hand, the susceptor and the temperature sensor can be integrated, and the mounting stability and the temperature measuring accuracy are improved; and meanwhile, the whole replacement and installation are convenient.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic structural view of a conventional electromagnetic induction heating type heating apparatus;
figure 2 is a schematic structural view of an aerosol-generating device according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the photoreceptor of FIG. 2 from a perspective;
FIG. 4 is an exploded view of the photoreceptor portions of FIG. 3 shown unassembled;
figure 5 is a schematic view of a susceptor of yet another embodiment;
figure 6 is a schematic view of a susceptor of yet another embodiment;
figure 7 is a schematic view of a susceptor of yet another embodiment;
figure 8 is a schematic illustration of a method of making a susceptor provided by an embodiment.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and detailed description.
An aerosol-generating device according to an embodiment of the present invention is configured as shown in fig. 2, and includes:
a chamber within which smokable material A, such as a tobacco rod, is removably received;
an inductance coil L as a magnetic field generator for generating an alternating magnetic field under an alternating current;
a susceptor 30, at least a portion of which extends within the chamber and is configured to inductively couple with the inductor L to generate heat when penetrated by the alternating magnetic field to heat the smokable material a to volatilise at least one component of the smokable material a to form an aerosol for smoking;
the battery cell 10 is a rechargeable direct current battery cell and can provide direct current voltage and direct current;
the circuit 20 is electrically connected to the rechargeable battery cell 10, and converts the direct current output by the battery cell 10 into alternating current with a suitable frequency, and then supplies the alternating current to the inductance coil L.
The inductor L may comprise a helically wound cylindrical inductor coil, as shown in figure 2, depending on the arrangement in use of the product. The helically wound cylindrical inductor L may have a radius r in the range of about 5mm to about 10mm, and in particular the radius r may be about 7 mm. The length of the helically wound cylindrical inductor L may be in the range of about 8mm to about 14mm, with the number of turns of the inductor L being in the range of about 8 to 15 turns. Accordingly, the internal volume may be about 0.15cm3To about 1.10cm3Within the range of (1).
In a more preferred implementation, the frequency of the alternating current supplied by the circuit 20 to the inductor L is between 80KHz and 400 KHz; more specifically, the frequency may be in the range of approximately 200KHz to 300 KHz.
In a preferred embodiment, the battery cell 10 provides a dc supply voltage in a range from about 2.5V to about 9.0V, and the battery cell 10 provides a dc current with an amperage in a range from about 2.5A to about 20A.
In a preferred embodiment, the susceptor 30 of figure 2 is formed from a metal or alloy material having suitable magnetic permeability to induce heating in response to a magnetic field in use, thereby heating the received smokable material a to generate an aerosol for inhalation. These susceptors 30 may be made from grade 420 stainless steel (SS420), as well as iron-nickel containing alloy materials such as J85/J66 permalloy.
In the embodiment shown in fig. 2, the aerosol-generating device further comprises a tubular support 40 for arranging the inductor L and the mounting susceptor 30, the material of the tubular support 40 may comprise a high temperature resistant non-metallic material such as PEEK or ceramic. In practice, the inductor coil L is arranged in a helically wound manner on the outer wall of the tubular support 40, and at least a portion of the interior of the tubular support 40 is hollow forming a chamber for receiving the smokable material a.
With further reference to fig. 3 and 4, for the sheet-like configuration of the susceptor 30, there is a first end 31 and a second end 32; wherein the first end 31 is opposite the opening of the chamber for receiving smokable material a, the first end 31 being configured as a free end in use in the shape of a tip to facilitate insertion into smokable material a received in the chamber through the open end, and the second end 32 being an end mounted and connected for providing support through the tubular support 40 for stable retention and mounting securement of the susceptor 30 within the apparatus.
In a more preferred implementation, the susceptor 30 is constructed from first and second laminae 310, 320 that are opposed in the thickness direction; in particular, the method comprises the steps of,
the first sheet body 310 comprises a straight first part 311, a second part 312 formed by the first part 311 protruding outwards in the thickness direction, and a third part 313 extending from at least one part of the first part 311 near the second end 32 in the width direction;
the second sheet 320 is similar to the first sheet 310 in shape, and includes a straight fourth portion 321, a fifth portion 322 formed by the fourth portion 321 protruding outward in the thickness direction, and a sixth portion 323 extending from at least a portion of the fourth portion 321 near the second end 32 in the width direction;
the first and second sheets 310, 320, when joined, form a receiving cavity 330 therebetween for receiving and enclosing a temperature sensor 340; the specific receiving cavity 330 is formed by the first recessed feature 331 of the second portion 312 of the first wafer 310 and the second recessed feature 332 of the fifth portion 322 of the second wafer 320.
In assembly, the sensing portion 341 of the temperature sensor 340 is received and enclosed in the receiving chamber 330, and may be enclosed and fixed by gluing or the like. Meanwhile, the electrical connection portion 342 of the temperature sensor 340 is in the form of a pin designed to be elongated and extends from the inside of the accommodating cavity 330 through the second end 32 to the outside of the susceptor 30, so as to facilitate connection with the circuit 20, and then the circuit 20 can receive the sensing signal of the sensing portion 341 through the electrical connection portion 342. In use, the temperature sensor 40 is enclosed within the generally magnetic field shielded receiving cavity 330 and the sensing portion 341 is in close abutment with the first and/or second sheet 310, 320, thereby avoiding interference from the magnetic field whilst enabling stable or accurate detection of the temperature of the susceptor 30.
In alternative implementations, the temperature sensor 340 may be a thermistor type temperature sensor such as PT1000 that calculates temperature by monitoring resistance change, or a thermocouple type temperature sensor that calculates temperature by calculating thermoelectromotive force at both ends.
Further in a preferred implementation, the second portion 312 of the first sheet-like body 310 and/or the fifth portion 322 of the second sheet-like body 320 is formed or prepared by stamping on a flat sheet-like piece of the above susceptor material, such as sheet metal, from the standpoint of mass production and preparation of the susceptor 30. Meanwhile, in stable joining, the first sheet body 310 and the second sheet body 320 may be fixed together by welding, such as laser welding.
In the preferred embodiment shown in fig. 3 and 4, the receiving chamber 330 extends in the axial direction of the susceptor 30; in practice, the cross-section of the receiving cavity 330 may be substantially in the shape of a diamond, a circle, a square, etc.
According to what is shown in figure 4, the second portion 312 has a tapering 3121, such as a conical shape, a triangular conical shape or the like, of gradually decreasing cross-sectional area proximate the first end 31 of the susceptor 30 for reducing resistance to insertion of the smokable material a.
In a more preferred implementation, the tapered portion 3121 of the second portion 312, or in combination with the corresponding proximally configured fifth portion 322, may form a tapered shape of the front end portion of the receiving cavity 330 near the first end 31, which facilitates fastening and mounting when the sensing portion 341 of the temperature sensor 340 abuts against the tapered front end portion of the receiving cavity 330 during mounting.
According to the preferred embodiment shown in the figures, the susceptor 30 is formed with a second portion 312 and a fifth portion 322, the portion forming the housing cavity 330, having a greater dimension in the thickness direction than the other portions. Meanwhile, the thickness dimension of the receiving cavity 330 formed by the second portion 312 and the fifth portion 322 is gradually increased inward in the width direction, so that the outer surface of the susceptor 30 formed by the second portion 312 and the fifth portion 322 is gradually changed. On one hand, the contact area with the smokable material A is increased, and the heat transfer efficiency is improved; on the other hand, the resistance to insertion of the susceptor 30 into the smokable material a may be reduced.
In a further variant embodiment, shown in figure 5 or figure 6, the second wafer 320a/320b of the susceptor 30a/30b is of flat shape; and only the second portion 312a/312b protruding outward in the thickness direction is formed on the first sheet body 310a/310b by punching or the like, and a receiving cavity 330a/330b for receiving or packaging the temperature sensor is formed between the second portion 312a/312b and the second sheet body 320a/320 b.
Of course, according to the embodiment shown in fig. 5 or 6, the cross-sectional shape of the second portion 312a/312b may be substantially a triangular shape or a circular arc shape in which the thickness dimension gradually increases inward in the width direction. And as can be seen from fig. 5 and 6, the projection dimension of the second portion 312a/312b in the thickness direction is larger than the thickness dimension of the first portion 311a/311 b.
In a further variant implementation, shown in figure 7, the third portion 313c of the first laminar body 310c of the susceptor 30c has a greater dimension along the thickness of the susceptor 30c than the first portion 311c and the second portion 312c, so as to be convex with respect to the other portions in the thickness direction, in order to facilitate mounting or retention within the device.
The present invention further proposes a method of preparing a susceptor 30 as described above, as illustrated in figure 8, the method comprising the steps of:
s10, providing a first sheet 310 and a second sheet 320 opposite in the thickness direction;
s20, forming a receiving cavity 330 extending in the length direction between the first sheet body 310 and the second sheet body 320;
s30, acquiring the temperature sensor 340, and accommodating or packaging the temperature sensor 340 in the accommodating cavity 330.
According to the aerosol generating device and the susceptor, the temperature sensor is packaged or contained in the susceptor, so that on one hand, the influence of a magnetic field on the sensing part can be basically isolated, on the other hand, the susceptor and the temperature sensor can be integrated, and the mounting stability and the temperature measuring accuracy are improved; and meanwhile, the whole replacement and installation are convenient.
It should be noted that the preferred embodiments of the present invention are shown in the specification and the drawings, but the present invention is not limited to the embodiments described in the specification, and further, it will be apparent to those skilled in the art that modifications and changes can be made in the above description, and all such modifications and changes should fall within the protection scope of the appended claims.
Claims (12)
1. An aerosol-generating device for heating smokable material to generate an aerosol, comprising:
a chamber for receiving smokable material;
a magnetic field generator configured to generate a varying magnetic field;
a susceptor configured to be penetrated by a varying magnetic field to generate heat to thereby heat smokable material received within the chamber; it is characterized in that the preparation method is characterized in that,
the susceptor is configured in a sheet shape extending in an axial direction of the chamber and includes first and second sheet-shaped bodies opposing in a thickness direction; wherein the content of the first and second substances,
the first and second sheets form between them a receiving cavity extending in the axial direction of the chamber, which is configured for receiving or enclosing a temperature sensor sensing the temperature of the susceptor.
2. The aerosol-generating device of claim 1, wherein the first sheet comprises: a first portion extending straight in an axial direction of the chamber, and a second portion formed by at least a part of the first portion being convex outward in a thickness direction;
the second portion of the first sheet and the second sheet form the receiving cavity therebetween.
3. The aerosol-generating device of claim 2, wherein the chamber has an open end that removably receives the smokable material;
at least a portion of the second portion tapers in height relative to the first portion in a direction proximate the open end.
4. An aerosol-generating device according to claim 2, wherein the first sheet further comprises a third portion extending widthwise outwardly from the first portion to provide support or retention of the susceptor by the third portion.
5. An aerosol-generating device according to claim 4, wherein at least a portion of the third portion of the first sheet-like body is raised relative to other portions in the thickness direction.
6. An aerosol-generating device according to claim 2, wherein the second portion is configured to be generally triangular or circular arc in cross-section.
7. An aerosol-generating device according to any one of claims 2 to 6, wherein the second sheet comprises: a fourth portion extending straight in an axial direction of the chamber, and a fifth portion formed by at least a portion of the fourth portion bulging outward in a thickness direction;
the fifth part is opposite to the second part, and the accommodating cavity is formed between the fifth part and the second part.
8. An aerosol-generating device according to any one of claims 2 to 6, wherein the temperature sensor further comprises an electrically conductive connection extending at least partially from the receiving chamber to outside the susceptor, whereby, in use, a temperature sensed by the temperature sensor is receivable by the electrically conductive connection.
9. An aerosol-generating device according to any one of claims 2 to 6 in which the second portion of the first sheet-like body is stamped from flat sheet metal or sheet metal material.
10. Aerosol-generating device according to claim 1 or 2,
the chamber having an open end that removably receives smokable material;
at least a portion of the receiving cavity is configured as a tapered region that gradually decreases in cross-sectional area proximate the open end; the temperature sensor is housed or encapsulated in the tapered region.
11. A susceptor for an aerosol-generating device, the susceptor being configured to be penetrated by a varying magnetic field to generate heat to thereby heat an smokable material; characterized in that the susceptor is configured in the form of a sheet extending in the axial direction of the chamber and comprises:
a first sheet-like body and a second sheet-like body opposed in a thickness direction; wherein the content of the first and second substances,
the first and second sheets form between them a receiving cavity extending in the axial direction of the chamber, which is configured for receiving or enclosing a temperature sensor sensing the temperature of the susceptor.
12. A method of making a susceptor for an aerosol-generating device, the susceptor being configured to be penetrated by a varying magnetic field to generate heat to thereby heat an smokable material; characterized in that the method comprises the following steps:
providing a first sheet-shaped body and a second sheet-shaped body which are opposite in the thickness direction, and forming a containing cavity extending in the length direction between the first sheet-shaped body and the second sheet-shaped body;
a temperature sensor for sensing the temperature of the susceptor is housed or encapsulated in the housing chamber.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010451178.3A CN113712266A (en) | 2020-05-25 | 2020-05-25 | Aerosol-generating device, susceptor and method of making |
| US17/925,007 US20230180839A1 (en) | 2020-05-12 | 2021-05-12 | Vapor generation device and susceptor |
| PCT/CN2021/093418 WO2021228157A1 (en) | 2020-05-12 | 2021-05-12 | Aerosol generating device, and susceptor |
| JP2022568652A JP7488367B2 (en) | 2020-05-12 | 2021-05-12 | Aerosol generator and susceptor |
| KR1020227042631A KR20230004873A (en) | 2020-05-12 | 2021-05-12 | Aerosol generating devices and susceptors |
| EP21803080.7A EP4151103B1 (en) | 2020-05-12 | 2021-05-12 | Aerosol generating device, and susceptor |
| PCT/CN2021/095820 WO2021238922A1 (en) | 2020-05-25 | 2021-05-25 | Aerosol producing apparatus, inductor, and manufacturing method |
| EP21812617.5A EP4159059A4 (en) | 2020-05-25 | 2021-05-25 | Aerosol producing apparatus, inductor, and manufacturing method |
| US17/927,524 US20230354920A1 (en) | 2020-05-25 | 2021-05-25 | Vapor generation device, susceptor, and preparation method |
| KR1020227040247A KR20230002834A (en) | 2020-05-25 | 2021-05-25 | Aerosol generating device, susceptor and manufacturing method |
| JP2022571738A JP2023526112A (en) | 2020-05-25 | 2021-05-25 | Aerosol generator, susceptor and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010451178.3A CN113712266A (en) | 2020-05-25 | 2020-05-25 | Aerosol-generating device, susceptor and method of making |
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| Publication Number | Publication Date |
|---|---|
| CN113712266A true CN113712266A (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010451178.3A Pending CN113712266A (en) | 2020-05-12 | 2020-05-25 | Aerosol-generating device, susceptor and method of making |
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| Country | Link |
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| CN (1) | CN113712266A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116451A1 (en) * | 2021-12-21 | 2023-06-29 | 深圳市合元科技有限公司 | Aerosol generating device, and heater of aerosol generating device |
-
2020
- 2020-05-25 CN CN202010451178.3A patent/CN113712266A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023116451A1 (en) * | 2021-12-21 | 2023-06-29 | 深圳市合元科技有限公司 | Aerosol generating device, and heater of aerosol generating device |
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