CN215347052U - Gas mist generating device and resistance heater for gas mist generating device - Google Patents
Gas mist generating device and resistance heater for gas mist generating device Download PDFInfo
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- CN215347052U CN215347052U CN202120504870.8U CN202120504870U CN215347052U CN 215347052 U CN215347052 U CN 215347052U CN 202120504870 U CN202120504870 U CN 202120504870U CN 215347052 U CN215347052 U CN 215347052U
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Abstract
The application provides an aerosol-generating device and a resistive heater for an aerosol-generating device; wherein the aerosol-generating device comprises: a chamber for receiving an aerosol-generating article; a heater extending at least partially within the chamber and for heating the aerosol-generating article; the heater includes: a housing having a hollow extending in an axial direction; a heating coil located in the hollow and extending in an axial direction of the housing; the housing includes a first portion and a second portion arranged in an axial direction; wherein the first portion is arranged to extend at least partially within the chamber; the aerosol-generating device provides support to the heater by retaining the second portion; the housing further includes a recess or aperture between the first and second portions to reduce heat transfer from the first portion to the second portion. According to the aerosol generating device, the groove or the hollow hole is used for reducing the heat transferred from the first part to the second part, so that the second part is prevented from overheating and thermal damage is caused to a component for holding the second part.
Description
Technical Field
The embodiment of the application relates to the technical field of heating non-combustion smoking set, in particular to an aerosol generating device and a resistance heater for the aerosol generating device.
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. In the known art, the 202010054217.6 patent proposes heating a tobacco product with a heater enclosing a spiral heating wire within an outer sleeve to generate an aerosol.
SUMMERY OF THE UTILITY MODEL
Embodiments provide an aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; the method comprises the following steps:
a chamber for receiving an aerosol-generating article;
a heater extending at least partially within the chamber and configured to heat an aerosol-generating article; the heater includes:
a housing having a hollow extending in an axial direction;
a heating coil located within the hollow and configured to extend in an axial direction of the housing;
the housing includes a first portion and a second portion arranged in an axial direction; wherein the first portion is arranged to extend at least partially within the chamber; the aerosol-generating device providing support to the heater by retaining the second portion;
the housing further comprises a groove or aperture between the first and second portions to reduce heat transfer from the first portion to the second portion.
According to the aerosol generating device, the groove or the hollow hole is used for reducing the heat transferred from the first part to the second part, so that the second part is prevented from overheating and thermal damage is caused to a component for holding the second part.
In a preferred embodiment, the heating coil avoids the second portion in an axial direction of the housing.
In a preferred embodiment, the heating coil has an extension in the axial direction of the housing which at least partially coincides with the first section.
In a preferred implementation, the groove is configured to extend in a circumferential direction of the housing.
In a preferred implementation, the heater further comprises:
a base coupled to the second portion; the aerosol-generating device provides retention of the second portion by the base.
In a preferred implementation, the base at least partially avoids the recess or aperture.
In a preferred embodiment, the cross section of the wire material of the heating coil is configured to extend in an axial direction of the heating coil over a length greater than a length extending in a radial direction.
In a preferred implementation, the heater further comprises a conductive pin for powering the heating coil;
the housing has an end axially adjacent the second portion, the conductive pin penetrating into the hollow from the end.
In a preferred implementation, at least a portion of the housing proximate the tip is configured in a flattened shape.
Yet another embodiment of the present application also proposes a resistive heater for an aerosol-generating device, the resistive heater comprising:
a housing having a hollow extending in an axial direction of the housing;
a heating coil located within the hollow and configured to extend in an axial direction of the housing; it is characterized in that the preparation method is characterized in that,
the housing comprises a first portion and a second portion; wherein the extension length of the heating coil along the axial direction of the shell at least partially coincides with the first part, and the heating coil avoids the second part;
the housing further comprises a groove or aperture between the first and second portions to reduce heat transfer from the first portion to the second portion.
Yet another embodiment of the present application also proposes an aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; the method comprises the following steps:
a chamber comprising an opening; an aerosol-generating article removably received in the chamber through the opening;
a heater extending at least partially within the chamber and configured to heat an aerosol-generating article; characterized in that the heater comprises:
a housing having a hollow extending in an axial direction and having an end facing away from the opening in the axial direction;
a heating coil located within the hollow and configured to extend in an axial direction of the housing;
a conductive pin for supplying power to the heating coil and configured to penetrate into the hollow from the tip;
at least a portion of the housing proximate the tip is configured in a flattened shape.
Yet another embodiment of the present application also proposes a resistive heater for an aerosol-generating device, the resistive heater comprising:
a housing having axially opposite free leading and trailing ends and a void extending axially of the housing between the free leading and trailing ends;
a heating coil located within the hollow and configured to extend in an axial direction of the housing;
a conductive pin for supplying power to the heating coil and configured to penetrate into the hollow from the tip;
at least a portion of the housing proximate the tip is configured in a flattened shape.
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.
Figure 1 is a schematic structural view of an aerosol-generating device provided by an embodiment of the present application;
FIG. 2 is an exploded schematic view of one embodiment of the heater of FIG. 1;
FIG. 3 is a schematic view of the heater of FIG. 2 from a perspective after assembly;
FIG. 4 is a schematic structural view of a resistance heating coil of still another embodiment;
FIG. 5 is a schematic cross-sectional view of the heater of FIG. 3 from one perspective;
FIG. 6 is a schematic structural view of a heater case of yet another embodiment
FIG. 7 is a schematic structural view of a heater according to yet another embodiment;
fig. 8 is a schematic cross-sectional view of the heater of fig. 7 from one perspective.
Detailed Description
To facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and detailed description.
An embodiment of the present application provides an aerosol-generating device, the configuration of which can be seen in fig. 1, including:
a chamber within which an aerosol-generating article a is removably received;
a heater 30 extending at least partially within the chamber, the heater being inserted into the aerosol-generating article a to heat when the aerosol-generating article a is received within the chamber, such that the aerosol-generating article a releases a plurality of volatile compounds, and the volatile compounds are formed only by the heating process;
the battery cell 10 is used for supplying power;
a circuit 20 for conducting current between the cell 10 and the heater 30.
In a preferred embodiment, the heater 30 is generally in the shape of a pin or needle, which in turn is advantageous for insertion into the aerosol-generating article a; meanwhile, the heater 30 may have a length of about 12 to 19 mm and an outer diameter of about 2 to 4 mm.
Of course, with further reference to fig. 1, the chamber has an opening 40, through which opening 40 the aerosol-generating article a is removably received in the chamber in operation.
Further in alternative implementations, the aerosol-generating article a preferably employs a tobacco-containing material that releases volatile compounds from the substrate upon heating; or it may be a non-tobacco material that is suitable for electrically heated smoking after heating. The aerosol-generating article a preferably employs a solid substrate, which may comprise one or more of a powder, granules, shredded strips, strips or flakes of one or more of vanilla leaves, tobacco leaves, homogenised tobacco, expanded tobacco; alternatively, the solid substrate may contain additional tobacco or non-tobacco volatile flavour compounds to be released when the substrate is heated.
FIG. 2 shows an exploded view of portions of heater 30 in one embodiment prior to assembly, including:
a heater housing 31 configured in a shape of a pin or a needle having a hollow 311 therein, or in a flat sheet or plate shape; and the front end near the opening 40 is free and is generally configured in the shape of a conical tip for ease of insertion into the aerosol-generating article a, and the end has features for ease of assembly within it in an open configuration;
a heating member 32 for generating heat; specifically, the resistance heating coil 320 configured in a spiral shape extending along a part of the axial direction of the heater housing 31, and a first conductive pin 321 connected to the lower end of the resistance heating coil 320, and a second conductive pin 322 connected to the upper end of the resistance heating coil 320, respectively, are structurally included. In use, the first and second conductive pins 321, 322 are used to power the resistive heating coil 320.
In the implementation shown in fig. 2, the resistive heating coil 320 is completely assembled and held within the hollow 311 of the housing 31, and the resistive heating coil 320 and the heater housing 31 are thermally conductive to each other after assembly.
Further in the preferred implementation shown in fig. 2, the resistive heater 30 also includes a base 33; in the figure, the base 33 is a heat-resistant material such as ceramic, PEEK, or the like; the shape is preferably circular. In assembly, the lower end of the heater housing 31 is fixed to the base 33 by high temperature glue or molding, such as in-mold injection molding; further, the gas mist generating device can fix the base 33 by means of support, clamping, holding, or the like, and further, can stably mount and hold the resistance heater 30. Of course, after the base 33 is assembled with the lower end of the heater housing 31, the first conductive pin 321 and the second conductive pin 322 penetrate through the central hole of the base 33, thereby facilitating the connection with the circuit 20.
In an alternative embodiment, the resistive heating coil 320 is made of a metal material, a metal alloy, graphite, carbon, a conductive ceramic or other ceramic material and metal material with appropriate impedance. Wherein suitable metal or alloy materials include at least one of nickel, cobalt, zirconium, titanium, nickel alloys, cobalt alloys, zirconium alloys, titanium alloys, nickel-chromium alloys, nickel-iron alloys, iron-chromium-aluminum alloys, titanium alloys, iron-manganese-aluminum based alloys, stainless steel, or the like.
The heater housing 31 is made of a material such as glass, ceramic, metal, or alloy, which is heat-resistant and heat-conductive, for example, stainless steel. Of course, after assembly, the resistive heating coil 320 is abutted against the inner wall of the hollow 311 of the heater housing 31 to be thermally conductive to each other, while being insulated from each other when the heater housing 31 is made of metal or alloy. For example, the surfaces in contact with each other may be insulated by gluing, surface oxidation, spraying an insulating material layer, or the like.
Fig. 3 is a cross-sectional view schematically showing a view angle of the resistance heating coil 320 of fig. 2, and a sectional shape of a wire material of the resistance heating coil 320 is a wide or flat shape other than a conventional circular shape. In the preferred embodiment shown in fig. 3, the cross-section of the wire material of the resistance heating coil 320 has a length extending in the longitudinal direction greater than a length extending in a radial direction perpendicular to the longitudinal direction, so that the wire material of the resistance heating coil 320 has a flattened rectangular shape.
In brief, the resistive heating coil 320 constructed above is completely or at least flattened in the form of wire material, as compared to a conventional helical heating coil formed of a circular cross-section wire. Thus, the wire material extends to a lesser extent in the radial direction. By this measure, the energy loss in the resistance heating coil 320 can be reduced. In particular, the transfer of heat may be facilitated.
In some alternative implementations, the cross-section of the wire material of the resistive heating coil 320 extends along the axial direction for a length of between about 1mm and about 4 mm; the extension length of the wire material of the resistance heating coil 320 in the radial direction is about 0.1 to 1 mm.
Further in accordance with the above preferred embodiment, the resistive heating coil 320 has 6 to 20 windings or turns. And, the resistance heating coil 320 has an extension length of about 8 to 12 mm.
Of course, in other variations or alternative implementations, the above heater 30 also employs a generally resistive heating coil 320a having a circular cross-section of wire material as shown in FIG. 4.
As further shown in fig. 2, 3 and 5, the heater housing 31 has a first portion 313 and a second portion 314 arranged in series in the longitudinal direction; wherein the content of the first and second substances,
the first portion 313 is primarily the portion that extends into the aerosol-generating article a for heating;
the second portion 314 is a portion that mainly holds the heater housing 31/heater 30, and the heater housing 31/heater 30 can be stably held in the gas mist generating apparatus by, for example, sandwiching the second portion 314 between the gas mist generating apparatus and/or the base 33 during the operation.
As further shown in fig. 2-3, the heater housing 31 also includes a recess 312 positioned between a first portion 313 and a second portion 314. The recess 312 enables the heater housing 31 to have a thinner wall thickness at the location of the recess 312 in use to reduce the amount of heat transferred from the first portion 313 to the second portion 314, thereby preventing the second portion 314 from overheating and causing thermal damage to the plastic base 33 or aerosol-generating device holding or retaining the second portion 314.
In a preferred embodiment shown in fig. 3 and 5, the base 33 avoids the groove 312 or the opening, so that the groove 312 or the opening of the heater housing 31 is at least partially exposed out of the base 33 after assembly, i.e. the groove 312 or the opening is at least not completely covered by the base 33.
In the implementation shown in fig. 5, resistive heating coil 320 extends within first portion 313 after assembly. And the resistive heating coil 320 is shielded from the second portion 314, it is advantageous to reduce the transfer of heat from the resistive heating coil 320 to the second portion 314.
In an alternative embodiment, the inner diameter of the inner wall of the hollow 311 formed by the heater case 31 made of stainless steel/ceramic or the like is about 3.5 mm; namely, the wall thickness of the heater case 31 is about 0.2 to 0.3 mm. The first portion 313 has a length of about 12-15 mm and the second portion has a length of about 4-6 mm.
In the implementation shown in fig. 3 and 5, the groove 312 is formed of a ring shape extending in the circumferential direction of the heater housing 31; preferably the depth of the grooves is about 0.15mm or so. In the implementation shown in fig. 3 and 5, the groove 312 is a closed annular configuration extending around the circumference of the heater housing 31. Or in other variant implementations, the groove 312 may be plural in number and arranged to extend in the circumferential direction of the heater casing 31 in sequence. Or in other alternative embodiments, the groove 312 may be replaced by a hole, such as the hole 312c shown in fig. 6. In some implementations, the above grooves 312 and/or apertures 312c are formed on the outer surface of the heater housing 31 by laser cutting, etching, machining, or the like.
Fig. 7 and 8 show schematic views of a heater 30b of a further embodiment, in this embodiment 30 b; the heater housing 31b is configured overall in the shape of a pin/needle with a tip 315b opposite to the free front end into which the aerosol-generating article a is inserted. At least a portion 316b of the heater housing 31b proximate the tip 315b is configured to be flat or tapered. Having the flat or tapered end 315b, heat exchange or convection of the hot air in the hollow 311b of the heater housing 31b with the external air through the end 315b can be prevented, reducing heat loss.
Meanwhile, since the end 315b is configured or folded into a flat shape, the end 315b can stably clamp the first conductive pin 321b and the second conductive pin 322b, which is beneficial to prevent the first conductive pin 321b and the second conductive pin 322b from being loosened.
It should be noted that the description and drawings of the present application illustrate preferred embodiments of the present application, but are not limited to the embodiments described in the present application, and further, those skilled in the art can make modifications or changes according to the above description, and all such modifications and changes should fall within the scope of the claims appended to the present application.
Claims (12)
1. An aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; the method comprises the following steps:
a chamber for receiving an aerosol-generating article;
a heater extending at least partially within the chamber and configured to heat an aerosol-generating article; characterized in that the heater comprises:
a housing having a hollow extending in an axial direction;
a heating coil located within the hollow and configured to extend in an axial direction of the housing;
the housing includes a first portion and a second portion arranged in an axial direction; wherein the first portion is arranged to extend at least partially within the chamber; the aerosol-generating device providing support to the heater by retaining the second portion;
the housing further comprises a groove or aperture between the first and second portions to reduce heat transfer from the first portion to the second portion.
2. The aerosol-generating device of claim 1, wherein the heating coil faces away from the second portion in an axial direction of the housing.
3. Aerosol-generating device according to claim 1 or 2, characterized in that the extension of the heating coil in the axial direction of the housing at least partially coincides with the first portion.
4. An aerosol-generating device according to claim 1 or 2, wherein the groove is configured to extend in a circumferential direction of the housing.
5. An aerosol-generating device according to claim 1 or 2, wherein the heater further comprises:
a base coupled to the second portion; the aerosol-generating device provides retention of the second portion by the base.
6. An aerosol-generating device according to claim 5, wherein the base at least partially avoids the recess or aperture.
7. Aerosol-generating device according to claim 1 or 2, wherein the cross-section of the wire material of the heating coil is configured to extend a greater length in an axial direction of the heating coil than in a radial direction.
8. An aerosol-generating device according to claim 1 or 2, wherein the heater further comprises an electrically conductive pin for supplying power to the heating coil;
the housing has an end axially adjacent the second portion, the conductive pin penetrating into the hollow from the end.
9. The aerosol-generating device of claim 8, wherein at least a portion of the housing proximate the tip is configured to be flat.
10. An electrical resistance heater for an aerosol-generating device, the electrical resistance heater comprising:
a housing having a hollow extending in an axial direction of the housing;
a heating coil located within the hollow and configured to extend in an axial direction of the housing; it is characterized in that the preparation method is characterized in that,
the housing comprises a first portion and a second portion; wherein the extension length of the heating coil along the axial direction of the shell at least partially coincides with the first part, and the heating coil avoids the second part;
the housing further comprises a groove or aperture between the first and second portions to reduce heat transfer from the first portion to the second portion.
11. An aerosol-generating device configured to heat an aerosol-generating article to generate an aerosol; the method comprises the following steps:
a chamber comprising an opening; an aerosol-generating article removably received in the chamber through the opening;
a heater extending at least partially within the chamber and configured to heat an aerosol-generating article; characterized in that the heater comprises:
a housing having a hollow extending in an axial direction and having an end facing away from the opening in the axial direction;
a heating coil located within the hollow and configured to extend in an axial direction of the housing;
a conductive pin for supplying power to the heating coil and configured to penetrate into the hollow from the tip;
at least a portion of the housing proximate the tip is configured in a flattened shape.
12. An electrical resistance heater for an aerosol-generating device, the electrical resistance heater comprising:
a housing having axially opposite free leading and trailing ends and a void extending axially of the housing between the free leading and trailing ends;
a heating coil located within the hollow and configured to extend in an axial direction of the housing;
a conductive pin for supplying power to the heating coil and configured to penetrate into the hollow from the tip;
at least a portion of the housing proximate the tip is configured in a flattened shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120504870.8U CN215347052U (en) | 2021-03-05 | 2021-03-05 | Gas mist generating device and resistance heater for gas mist generating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120504870.8U CN215347052U (en) | 2021-03-05 | 2021-03-05 | Gas mist generating device and resistance heater for gas mist generating device |
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| CN215347052U true CN215347052U (en) | 2021-12-31 |
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| CN202120504870.8U Active CN215347052U (en) | 2021-03-05 | 2021-03-05 | Gas mist generating device and resistance heater for gas mist generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024114367A1 (en) * | 2022-12-01 | 2024-06-06 | 深圳市合元科技有限公司 | Aerosol generating device, and heater for aerosol generating device |
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2021
- 2021-03-05 CN CN202120504870.8U patent/CN215347052U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024114367A1 (en) * | 2022-12-01 | 2024-06-06 | 深圳市合元科技有限公司 | Aerosol generating device, and heater for aerosol generating device |
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