KR20230036956A - Guiding component, heating assembly and aerosol generating device - Google Patents

Abstract

The present invention relates to a guide member, a heating assembly and an aerosol generating device, wherein an inlet chamber for introducing an aerosol-generating substrate is formed in the guide member, the inlet chamber is provided with a first stage and a second stage installed to face each other, the first stage and the second stage have different cross-sectional shapes, and an area of a cross-section of the second stage of the inlet chamber is smaller than an area of a cross-section of the first stage. The inlet chamber gradually changes and transitions from the first stage to the second stage. The guide member can heat the aerosol-generating substrate by smoothly introducing the aerosol-generating substrate into the heating assembly.

Description

Guide member, heating assembly and aerosol generating device {GUIDING COMPONENT, HEATING ASSEMBLY AND AEROSOL GENERATING DEVICE}

The present invention relates to the field of atomization, and specifically relates to guidance elements, heating assemblies and aerosol generating devices.

The non-combustion heating type atomization device forms an aerosol generating device capable of inhaling an aerosol by heating an atomization material through a low-temperature non-combustion method. Current aerosol generating devices generally use a tubular outer heating method or a heating method inserted in the center. Tubular enclosure heating here means that the heating tube is enclosed outside the aerosol-generating substrate. Conventional heating tubes are generally designed as hollow circular tubes, which are inserted into an aerosol-generating substrate, and then the circle on the contour of the cross section of the aerosol-generating substrate and the circle on the inner wall of the heating tube are contacted and overlapped or joined. The aerosol-generating substrate usually needs to be first focused and then inserted into the heating tube to be heated, and if the cross-sectional shape of the aerosol-generating substrate and the cross-sectional shape of the heating tube are different, the aerosol-generating substrate is difficult to insert into the heating tube.

The technical problem to be solved in the present invention is to provide an improved guide member, a heating assembly equipped with the guide member, and an aerosol generating device by focusing on the conventional technical deficiencies.

The technical solution adopted by the present invention to solve this technical problem is as follows. In the guide member formed in the present invention, used in a heating assembly of an aerosol generating device, an inlet chamber for introducing an aerosol generating substrate is formed in the guide member, and the inlet chamber has a first end and a second end installed to face each other. The cross section of the first end and the second end have different shapes, the area of the cross section of the second end in the inflow chamber is smaller than the area of the cross section of the first end, and the inlet chamber is formed in the first end. It gradually changes and transitions from the stage to the second stage.

In some embodiments, the area of the cross-section of the second stage in the inlet chamber is less than or equal to the area of the cross-section of the aerosol-generating substrate to be introduced.

In some embodiments, the shape of the cross section of the second stage in the inlet chamber is non-circular.

In some embodiments, the shape of the cross section of the second stage in the inlet chamber is polygonal.

In some embodiments, the polygons include regular polygons or Reuleaux polygonals.

In some embodiments, the shape of the cross-section of the first stage in the inlet chamber matches the shape of the cross-section of the aerosol-generating substrate to be introduced.

In some embodiments, an area of a cross section of the first stage in the inlet chamber is greater than an area of a cross section of the aerosol-generating substrate to be introduced.

In some embodiments, the shape of the cross section of the first end in the inlet chamber is circular or polygonal.

In some embodiments, a transition chamber is further formed within the guide member, and the transition chamber and the second end of the inlet chamber are connected to each other.

In some embodiments, the shape of the cross section in the transition chamber matches the shape of the cross section of the second stage in the inlet chamber.

In some embodiments, an opening chamber is further formed in the guide member, and the opening chamber and the first end of the inlet chamber are connected to each other.

In some embodiments, the shape of the cross-section of the opening chamber in the inlet chamber matches the contour of the cross-section of the aerosol-generating substrate to be introduced.

In some embodiments, the area of the cross section of the opening chamber is greater than or equal to the area of the cross section of the first stage in the inlet chamber.

In some embodiments, the guidance element is injection molded from a polymeric compound.

In the heating assembly further provided by the present invention, a heating chamber including a heating tube and any one of the above guide members connected to the heating tube and accommodating the aerosol generating substrate in the heating tube is formed, The heating chamber and the second end of the inlet chamber are connected to each other.

In some embodiments, at least some chamber walls of the heating chamber are capable of compressing the aerosol-generating substrate; A maximum inscribed circle is provided in the contour of a cross section in the heating chamber, the aerosol-generating substrate is accommodated in the heating chamber, and the diameter of the maximum inscribed circle is smaller than the outer diameter of the aerosol-generating substrate before being compressed.

In some embodiments, a state of the aerosol-generating substrate is received in the heating chamber, and at least one airflow passage is further formed between an outer wall surface of the aerosol-generating substrate and a chamber wall of the heating chamber.

The present invention further provides an aerosol generating device comprising the heating assembly of any of the foregoing.

By implementing the present invention, at least the following advantageous effects can be obtained. The structural arrangement of the guidance elements allows the aerosol-generating substrate to flow smoothly into and heat the heating assembly.

The following describes the present invention further by combining drawings and embodiments.
1 is a three-dimensional structure schematic diagram of a heating assembly in a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the heating assembly shown in FIG. 1 when receiving an aerosol-generating substrate;
Fig. 3 is a longitudinal cross-sectional schematic view of the heating assembly shown in Fig. 1;
FIG. 4 is a schematic view showing a cross-sectional outline of the heating chamber in FIG. 1;
5 is a three-dimensional structure schematic diagram of a heating assembly in a second embodiment of the present invention.
Figure 6 is a longitudinal cross-sectional schematic view of the heating assembly shown in Figure 5;
7 is a schematic diagram showing the cross-sectional outline of a heating chamber of a heating assembly in a third embodiment of the present invention.
8 is a schematic diagram showing the cross-sectional outline of a heating chamber of a heating assembly in a fourth embodiment of the present invention.
9 is a schematic diagram showing the cross-sectional outline of a heating chamber of a heating assembly in a fifth embodiment of the present invention.
10 is a schematic diagram showing the cross-sectional outline of a heating chamber of a heating assembly in a sixth embodiment of the present invention.
11 is a schematic diagram showing the cross-sectional outline of a heating chamber of a heating assembly in a seventh embodiment of the present invention.
12 is a longitudinal cross-sectional schematic view of a heating assembly in an eighth embodiment of the present invention.
13 is a three-dimensional structure schematic diagram of a heating assembly in a ninth embodiment of the present invention.
FIG. 14 is a schematic cross-sectional view of the heating assembly shown in FIG. 13 when receiving an aerosol-generating substrate;
15 is a three-dimensional structural schematic diagram showing when the heating assembly receives an aerosol-generating substrate in a tenth embodiment of the present invention.
Fig. 16 is a longitudinal cross-sectional schematic view of the heating assembly shown in Fig. 15;
Fig. 17 is a schematic diagram of an exploded structure of the heating assembly shown in Fig. 15;
18 is a three-dimensional schematic diagram showing an aerosol generating device when inserted into an aerosol generating substrate in some embodiments of the present invention.
Fig. 19 is a longitudinal cross-sectional schematic view showing the aerosol generating device shown in Fig. 18 when inserted into an aerosol generating substrate;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the drawings in order to more clearly understand the technical features, objects and effects of the present invention. In the following description, specific details are set forth in order to provide convenience for a thorough understanding of the present invention. However, since the present invention may be practiced in other ways than described herein, and similar improvements may be made by those skilled in the art without departing from the scope of the present invention, the present invention is not limited to the specific embodiments set forth below. .

'Center', 'longitudinal direction', 'transverse direction', 'length', 'width', 'thickness', 'top', 'bottom', 'front', 'back', ' 'Left', 'Right', 'Vertical', 'Horizontal', 'Top', 'Bottom', 'Inside', 'Outside', 'Clockwise', 'Counterclockwise', 'Axial', 'Radial' Directions such as ', 'circumferential direction' are due to the direction or positional relationship shown in the drawings or the direction or positional relationship normally placed when the product of the present invention is used, for easily and briefly explaining the contents of the present invention. However, it does not indicate or imply that all indicated devices or elements are necessarily configured and operated in a specific direction and in a specific direction, so it is not understood as limited to the present invention.

In addition, the technical terms 'first' and 'second' are used only for descriptive purposes, and should not be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, unless otherwise specified, the 'first' and 'second' features explicitly or implicitly include at least one feature. In the description of the present invention, 'plurality' means at least two, such as two, three, unless otherwise specifically limited.

It should be noted that in the present invention, technical terms such as "mounting", "connecting to each other", "connecting", "fixing", etc., unless otherwise specifically defined and limited, should be broadly understood. For example, it can be fixedly connected, detachably connected, integrally connected, mechanically connected and electrically connected, and unless otherwise specifically defined, directly connected to each other. It may be indirectly connected through an intermediate medium, or it may be a communication between two elements or an interaction between two elements. A person skilled in the art should understand the specific meaning of the above terminology used in the context of the present invention based on specific circumstances.

In the present invention, except for those explicitly defined and limited, the first feature is in direct contact between the first and second features at the 'top' or 'bottom' of the second feature, or the first and second features are intermediate It can be indirectly contacted through an intermediary. In addition, a first feature that is 'above', 'above', or 'top' of a second feature means that the first feature is directly above or obliquely above the second feature, or the horizontal height of the first feature is the second feature. A first feature that indicates only a higher one and is “below,” “under,” or “under” the second feature means that the first feature is directly below or diagonally below the second feature, or that the first feature is at a horizontal height of the first feature. represents only those that are lower than the second feature.

Therefore, if an element is considered to be 'fixed' or 'installed' in another element, it should be explained that the element is directly in another element or an element existing in the middle. When one element is considered to be 'connected' to another element, the element may be connected to the other element or simultaneously exist in the middle element. The technical terms 'vertical', 'horizontal', 'top', 'bottom', 'left', 'right' and similar expressions used in the present invention are used only for explanation purposes and do not imply that they are the only examples. .

1 to 4 show the heating assembly 1 of the first embodiment in the present invention, and the heating method of the heating assembly 1 may be resistance conduction heating, electromagnetic heating, infrared radiation heating or combined heating. The heating assembly 1 includes a heating tube 12, and the heating tube 12 is tubular with a hollow inside, and the inner wall of the heating tube 12 defines one heating chamber 120 to form an aerosol It is used to receive and heat the product substrate 200.

The cross section of the heating chamber 120 may be a non-circular polygon, including, but not limited to, a triangle, a quadrangle, a trapezoid, a pentagon, and the like. Preferably, the cross section of the heating chamber 120 is an axially symmetric polygonal, and furthermore, the cross section of the heating chamber 120 is a regular polygon or a Reuleaux polygonal. The cross-sectional contour C of the heating chamber 120 is provided with one maximum inscribed circle C1, and the diameter 2R of the maximum inscribed circle C1 is smaller than the outer diameter of the aerosol-generating substrate 200 before compression. In some embodiments, the diameter of the maximum inscribed circle is 0.2 to 2.0 mm smaller than the outer diameter of the aerosol-generating substrate 200 before being compressed. In some embodiments, the diameter 2R of the maximum inscribed circle C1 may be, for example, 3 to 9 mm, such as 4 mm, and preferably 5 to 7 mm. When the aerosol-generating substrate 200 is inserted into the heating chamber 120, at least some of the chamber walls of the heating chamber 120 compress the aerosol-generating substrate 200 so that the aerosol-generating substrate 200 is radially internally shape change occurs. To be understood, the greater the number of edges of the cross-sectional contour of the heating tube 120, the closer the cross-sectional contour of the heating chamber 120 is to a circle. In order to effectively apply a uniform pressure to the aerosol-generating substrate 200, the heating chamber 120 must not have an excessive number of edges in its cross-sectional profile, in some embodiments, between 3 and 7 edges.

The maximum distance (L) of the cross-sectional contour (C) of the heating chamber 120 from the center of the maximum inscribed circle (C1) is greater than the radius (R) of the maximum inscribed circle (C1). In some embodiments, the maximum distance (L) of the cross-sectional contour (C) of the heating chamber 120 from the center of the maximum inscribed circle (C1) may be greater than 2 mm, preferably 3 to 5 mm. When the aerosol-generating substrate 200 is accommodated in the heating chamber 120, at least one airflow passage 121 is formed between the outer wall surface of the aerosol-generating substrate 200 and the chamber wall of the heating chamber 120, At least one air flow passage 121 may be extended along the axial direction of the heating chamber 120 to ensure smooth air flow when suction is performed.

Specifically, in this embodiment, the heating tube 12 is an equilateral triangular tube, which means that the outer contour and the inner contour of the cross section of the heating tube 12 are usually equilateral triangles. The cross-sectional contour C of the heating chamber 120 refers to the inner contour of the cross-section of the heating tube 12, and generally represents an equilateral triangle, which has three right angles C2. A round corner C3 is installed at the point where each of the two right angle sides C2 of the cross-sectional contour C of the heating chamber 120 come into contact with each other, and the point where they meet each other is rounded and smoothed through appropriate chamfering.

The shape of the outer cross section of the heating tube 12 and the shape of the cross section of the heating chamber 120 correspond to each other, that is, the shape of the outer cross section of the heating tube 12 is also an equilateral triangle connected through an arc. In other embodiments, the shape of the outer cross-section of the heating tube 12 is also different from the shape of the cross-section of the heating chamber 120, for example, the outer cross-sectional shape of the heating tube 12 may also be other shapes such as circular. there is.

While the aerosol-generating substrate 200 is inserted into the heating tube 12, it is pressed radially inward by the heating tube 12 in a triangular shape similar to the shape of the cross section of the heating chamber 120. 2 is a cross-sectional view showing the cylindrical aerosol-generating substrate 200 as it is received into the heating tube 12, wherein the viscous fibers mark the outer contour of the cross-section before the aerosol-generating substrate 200 is compressed. After the aerosol-generating substrate 200 is compressed and deformed, its radial surface-to-center distance is reduced, thus shortening the calorific conduction distance. At the same time, the air inside the atomizing substrate 220 in the aerosol-generating substrate 200 is compressed and discharged, so that the density of the atomizing substrate 220 increases, so that the heat conduction efficiency is improved and the aerosol-generating substrate 200 Problems such as large temperature difference at the center of the surface, low heat conduction efficiency, and long preheating time can be improved.

When the aerosol generating substrate 200 is accommodated in the heating tube 12, three air flow passages 121 are further formed between the outer wall surface of the aerosol generating substrate 200 and the chamber wall of the heating chamber 120, Each of the three air flow passages 121 is located at a point where two corners of the heating chamber 120 are in contact with each other.

As shown in FIG. 3 , in this embodiment, the heating assembly 1 is heated by a forward resistance conduction heating method, and the heating assembly 1 is installed on the surface of the heating pipe 12 and generates heat after electricity is passed therethrough. It further includes a heating element 123 to be. The heating element 123 may be a heating film, a heating wire, a heating sheet, or a heating net. Specifically, in this embodiment, the heating element 123 is a resistance heating film and may be installed on the outer surface of the heating pipe 12 . The heating element 123 generates heat after electricity is applied, transfers the generated heat from the outer surface of the heating tube 12 to the aerosol generating substrate 200 accommodated in the heating tube 12, and transfers the generated heat to the aerosol generating substrate 200. ) is heated.

The heating tube 12 can be made of a metal or non-metallic material having relatively high thermal conductivity, so it is advantageous for quickly transferring heat, and the temperature field of the heating tube 12 is excellent in uniformity in a state where the temperature rises rapidly. Here, the metal or non-metal material having relatively high thermal conductivity includes stainless steel, aluminum, and aluminum alloy. Non-metallic materials having relatively high thermal conductivity include ceramics such as aluminum oxide, silicon carbide, aluminum nitride, and silicon nitride.

A heat uniform film 122 is further installed on the inner surface of the heating tube 12, and the heat uniform film 122 is installed around the inner surface of the heating tube 12 in the longitudinal direction (axis) of the heating tube 12. direction) at least partly installed. The heat uniform film 122 is made of a material with high thermal conductivity such as copper or silver to make the temperature field on the inner surface of the heating tube 12 uniform so that the aerosol generating substrate 200 can be uniformly heated. In some embodiments, the thermal uniformity film 122 may be installed to correspond to the high-temperature region of the heating element 123 and to correspond to the atomizing substrate 220 of the aerosol generating substrate 200. Specifically, the heat uniform film 122 and the high-temperature region of the heating element 123 and the atomizing substrate 220 overlap or at least partially overlap in the longitudinal direction of the heating tube 12 . The high-temperature region of the heating element 123 is generally a region in which this heat generation path distribution is relatively dense, and more heat is generated in this region after electricity is applied to the heating element 123, and the temperature is relatively high. The thermal uniformity film 122 is installed to correspond to the high-temperature region of the heating element 123 and the atomized substrate 220, and the heat amount of the high-temperature region of the heating element 123 is quickly transferred to the thermal uniformity film 122, and the thermal uniformity film 122 ) to uniformly heat the atomized substrate 220 by uniformly distributing it in Understandably, in other embodiments, the thermal uniformity film 122 may also be provided on the outer surface of the heating tube 12, for example, the thermal uniformity film 122 may also be a resistance heating film and the heating tube 12 It can be installed between the outer surface of.

5 and 6 show a second embodiment of the heating assembly 1 in the present invention, unlike the first embodiment, in this embodiment the heating assembly 1 is located on top of the heating tube 12 to form an aerosol It further includes a guide member 11 through which the generating substrate 200 is introduced and a support wall 13 sealed at the bottom of the heating tube 12 to support and fix the position of the aerosol generating substrate 200 in the axial direction. The guide member 11, the heating pipe 12, and the support wall 13 may be integrally molded or individually molded and then assembled.

Specifically, in this embodiment, the support wall 13 may be formed integrally with the heating tube 12 while being sealed at the lower opening of the heating tube 12 . At least one position-limiting boss 14 may be further installed on the inner wall of the heating tube 12 and/or the upper wall of the support wall 13, which limits the position of the aerosol-generating substrate 200. used to The at least one position limiting boss 14, the heating tube 12 and/or the supporting wall 13 may be integrally molded, or they may also be individually molded and then assembled in a manner such as welding or the like. In this embodiment, there is one position limiting boss 14, and the one position limiting boss 14 is integrally formed by being bent upward by the supporting wall 13 and overlaps with the central axis of the supporting wall 13. can lose The upper surface of the position limiting boss 14 is flat, and the lower surface of the aerosol generating substrate 200 is supported and fixed by being in close contact with the at least one position limiting boss 14 . In other embodiments, there are two or more position limiting bosses 14, and the two or more than two position limiting bosses 14 may be distributed around the supporting wall 13, and the circumferential direction of the supporting wall 13 It is installed evenly spaced along the

The guide member 11 has a tubular shape with a hollow inside, and an inner wall surface of the guide member 11 defines one inlet chamber 110 into which the aerosol-generating substrate 200 is introduced. The inlet chamber 110 has a first end 111 remote from the heating tube 12 and a second end 112 close to the heating tube 12 . The inflow chamber 110 is provided with one cross section A and one cross section B at the first end 111 and the second end 112, and the cross section B has a cross section of the cross section A smaller than the cross-sectional area. The cross-sectional area of the cross-section (A) is larger than the cross-sectional area of the aerosol-generating substrate 200 before being compressed, preferably, the cross-sectional area of the cross-section (A) is larger than the cross-sectional area of the aerosol-generating substrate 200 before being compressed, , which is advantageous for smooth introduction of the aerosol-generating substrate 200 into the heating assembly 1 . The cross-sectional shape of the cross-section A corresponds to the shape of the cross-section of the aerosol-generating substrate 200 before compression, in this embodiment, the aerosol-generating substrate 200 is cylindrical, and the cross-section A is The cross-sectional shape is circular. In other embodiments, the cross-sectional shape of the cross-section (A) is also different from the shape of the cross-section of the aerosol-generating substrate 200, for example, the cross-sectional shape of the cross-section (A) may also be non-circular, triangular, square, Includes polygons such as trapezoids.

While the cross-sectional shape of the cross-section (B) matches the shape of the cross-section in the heating chamber 120 with each other, it is different from the cross-sectional shape of the cross-section (A). In this embodiment, the cross-sectional shape of the cross section B is an equilateral triangle connected via a generally circular arc. In this embodiment, the second end 112 of the inlet chamber 110 and the upper end of the heating chamber 120 are connected, and the size of the cross section of the second end 112 in the inlet chamber 110 and the heating chamber ( 120) are identical. In other embodiments, the cross-sectional size of the second stage 112 in the inlet chamber 110 may also be smaller than the cross-sectional size of the heating chamber 120 . The inlet chamber 110 may adopt a method of gradually changing and transitioning smoothly from the first end 111 to the second end 112, that is, the cross section of the inlet chamber 110 is the first end 111 It is gradually transformed from a circular shape to an equilateral triangle matching the cross section of the heating tube 12, and is connected to the heating tube 12. The aerosol-generating substrate 200 is smoothly inserted into the heating tube 12 through the guide function of the guide member 11, and at the same time, the heating tube 12 presses the inside along the radial direction in the cross section of the heating chamber 120. It is a triangular shape similar to the shape.

The outer cross-sectional shape of the guide member 11 corresponds to the cross-sectional shape of the inflow chamber 110, and specifically, in the present embodiment, the outer cross-sectional shape of the guide member 11 changes from a circle at the top to an equilateral triangle at the bottom. gradually transform In other embodiments, the shape of the outer cross-section of the guide element 11 is also different from the shape of the cross-section of the inlet chamber 110 .

In addition, in this embodiment, the heating assembly 1 may adopt a heating method of resistance conduction and infrared radiation combined heating, and the heating assembly 1 is an infrared radiation heating film installed on the surface of the heating pipe 12 ( 125) is further included. The heating element 123 is installed on the outer surface of the heating tube 12, and two electrode lead wires 124 are welded to the outer surface of the bottom of the heating tube 12, respectively, and are welded to the heating element 123 to conduct. The infrared radiation heating film 125 may be installed on the inner surface of the heating pipe 12 . The heating tube 12 may be made of a metal or non-metallic material having high thermal conductivity, and the temperature field of the heating tube 12 is excellent in uniformity in a state where the temperature rises rapidly. Here, the metal material having high thermal conductivity includes stainless steel, aluminum, and an aluminum alloy, and the non-metal material having high thermal conductivity includes ceramics such as aluminum oxide, silicon carbide, aluminum nitride, and silicon nitride. In other embodiments, an infrared radiation heating film 125 may also be installed on the outer surface of the heating tube 12, and in this case, the heating tube 12 is made of a material such as quartz having high infrared transmittance.

In other embodiments, the heating assembly 1 may also adopt only the infrared radiation heating method, that is, only the infrared radiation heating film 125 is installed on the surface of the heating tube 12, and the heating element 123 is not installed. . The infrared radiation heating film 125 may be installed on the inner surface of the heating tube 12. At this time, the heating tube 12 is made of a metal or non-metal material that is resistant to high temperatures and has a low thermal conductivity, or the infrared radiation heating tube 125 When the heating film 125 is also installed on the outer surface of the heating tube 12, the heating tube 12 is made of a material such as quartz having a low thermal conductivity and high infrared transmittance.

7 is a schematic diagram showing the cross-sectional contour C of the heating chamber 120 of the third embodiment in the present invention, which, unlike the first embodiment, shows the cross-sectional contour C of the heating chamber 120 in this embodiment ) represents an equilateral triangle, which means that the two right angle sides are directly connected, and no chamfering is performed at the point where the two right angle sides come into contact with each other.

8 is a schematic diagram showing the cross-sectional contour C of the heating chamber 120 of the fourth embodiment in the present invention, which, unlike the first embodiment, shows the cross-sectional contour C of the heating chamber 120 in this embodiment ) represents a square, and each of the two adjacent corner edges is directly connected to each other.

9 is a schematic diagram showing the cross-sectional contour C of the heating chamber 120 of the fifth embodiment in the present invention, which, unlike the first embodiment, shows the cross-sectional contour C of the heating chamber 120 in this embodiment ) represents a square, and each of the two adjacent corner sides is connected by a transition with a circular arc.

10 shows a schematic diagram showing the cross-sectional contour C of the heating chamber 120 of the sixth embodiment in the present invention, which, unlike the first embodiment, shows the cross-sectional contour C of the heating chamber 120 in this embodiment ) represents a regular hexagon, and each of the two adjacent corner edges is directly connected to each other.

11 shows a schematic diagram showing the cross-sectional contour C of the heating chamber 120 of the seventh embodiment in the present invention, which, unlike the first embodiment, shows the cross-sectional contour C of the heating chamber 120 in this embodiment ) denotes a polygon with an odd number of arcuate sides. The contact area of the aerosol-generating substrate 200 with an odd number of arcuate faces of the heating chamber 120 is greater. Specifically, in this embodiment, the cross-sectional contour line C represents a Roello triangle. In other embodiments, the cross-sectional outline C may represent a Roello pentagon, heptagon, or the like.

Figure 12 shows the heating assembly 1 of the eighth embodiment of the present invention, which, unlike the second embodiment, in this embodiment, the inlet chamber 110 and the inlet chamber 110 inside the guide element 11 A transition chamber 113 axially connected with the is formed. The inlet chamber 110 has a second end 112 close to the heating tube 12 and a first end 111 far from the heating tube 12 . The inlet chamber 110 is provided with one cross section A and one cross section B at the first end 111 and the second end 112, and the cross section of the cross section A is equal to the cross section B greater than the cross-sectional area. While the cross-sectional shape of the cross-section B in the inlet chamber 110 matches the shape of the cross-section in the heating chamber 120, the cross-sectional area of the cross-section B is smaller than or equal to the cross-sectional area of the heating chamber 120. .

The upper end of the transition chamber 113 and the second end 112 of the inlet chamber 110 are connected to each other, and the cross-sectional shape and size of the upper end of the transition chamber 113 are the second end 112 in the inlet chamber 110. are suitable for each other in cross-sectional shape and size. The lower end of the transition chamber 113 and the upper end of the heating chamber 120 are connected to each other, and the cross-sectional shape and size of the lower end of the transition chamber 113 are compatible with the cross-sectional shape and size of the upper end of the heating chamber 120.

13 to 14 show a heating assembly 1 of a ninth embodiment in the present invention, unlike the second embodiment, in this embodiment, the cross section of the heating chamber 120 is a circular track, and the circular track cross section The diameter of the largest inscribed circle of and the minor axis length of the cross section of the circular track coincide. When the aerosol-generating substrate 200 is accommodated in the heating chamber 120, two airflow passages 121 are formed between the outer wall surface of the aerosol-generating substrate 200 and the chamber wall of the heating chamber 120, and the two air passages 121 are formed. The air flow passages 121 are located on both sides of the long axis of the heating chamber 120, respectively. It should be understood that in other embodiments, the cross-section of the heating chamber 120 may also be other non-circular, preferably axially symmetrical, non-circular.

Correspondingly, the cross-sectional shape of the second stage 112 where the inlet chamber 110 and the heating chamber 120 are connected to each other is a circular track matching the cross-sectional shape of the heating chamber 120, and the inlet chamber 110 The size of the cross section of the second stage 112 and the size of the cross section of the heating chamber 120 coincide. The cross-sectional shape of the first end 111 in the inlet chamber 110 is circular, and the cross-sectional shape of the inlet chamber 110 gradually changes from the circular shape of the first end 111 to the circular track of the second end 112. It changes.

In addition, in this embodiment, a plurality of through holes 10 connected to the heating chamber 120 are further installed in the heating assembly 1 . The through hole 10 may be opened at any position of the heating assembly 1 as needed. For example, the through hole 10 may be opened on the side wall of the guide member 11 and/or the heating pipe 12, and/or the through hole 10 may also be formed on the supporting wall 13 and/or the position It can also be opened in the limit boss (14). The shape, size, and quantity of the through holes 10 are not limited.

15 to 17 show a heating assembly 1 of a tenth embodiment of the present invention, and the heating assembly 1 includes a heating tube 12 and a guide member 11 installed at the top of the heating tube 12. ), a support wall 13 installed at the bottom of the heating tube 12, and an outer cover 16 installed on the outside of the heating tube 12. The guide member 11, the heating pipe 12, the support wall 13, and the outer cover 16 may be individually molded and then assembled.

Specifically, the heating tube 12 is a regular triangular tube, and the axial length of the heating tube 12 may be 25 to 31 mm. The inner wall surface of the heating pipe 12 defines a heating chamber 120 for accommodating and heating the aerosol-generating substrate 200, and the cross section of this heating chamber 120 represents an equilateral triangle, and the three corner edges are circular arcs. connected via The cross-sectional contour of the heating chamber 120 is provided with a maximum inscribed circle whose diameter is smaller than the outer diameter of the aerosol-generating substrate 200 before compression. When the aerosol-generating substrate 200 is inserted into the heating chamber 120, at least some of the chamber walls of the heating chamber 120 compress the aerosol-generating substrate 200 so that the aerosol-generating substrate 200 is radially internally shape change occurs.

The heating tube 12 is made of a metal or non-metal material with high thermal conductivity. A heating member 17 is installed on the outer wall of the heating tube 12, and the heating member 17 includes a heating element and/or a circuit board. In this embodiment, the heating member 17 includes a flexible circuit board and a thick film heating element installed on the flexible circuit board. In other embodiments, the heating member 17 may also include only a heating element or a circuit board, the heating element may be a heating film, a heating sheet, or a heating wire, and the circuit board may be a flexible circuit board or a rigid circuit board.

The guide member 11 is injection molded from a high molecular compound resistant to high temperatures such as PEEK (polyether ether ketone) and high temperature nylon. The guide member 11 includes a body portion 115, an end wall 116 in which an outer wall surface of the body portion 115 extends to the outside, and a ring wall 117 extending downward from the end wall 116. . An inner wall surface of the body portion 115 defines an open chamber 114 and an inlet chamber 110 . The cross-sectional shape of the aperture chamber 114 matches the shape of the cross-section of the aerosol-generating substrate 200 before being compressed, and in this embodiment, the cross-sectional shape of the aperture chamber 114 is circular. The cross-sectional area of the opening chamber 114 is greater than or equal to the cross-sectional area of the aerosol-generating substrate 200 before being compressed. The inlet chamber 110 has a first end 111 remote from the heating tube 12 and a second end 112 close to the heating tube 12 . The first end 111 of the inlet chamber 110 and the lower end of the opening chamber 114 are connected to each other, and the cross-sectional shape of the inlet chamber 110 at the first end 111 is the top of the opening chamber 114. The cross-sectional shape matches each other, and the cross-sectional area of the inlet chamber 110 at the first end 111 is smaller than or equal to the cross-sectional area of the open chamber 114 .

The cross-sectional area of the inlet chamber 110 at the second end 112 is smaller than the cross-sectional area of the first end 111 thereof. The second end 112 of the inlet chamber 110 and the upper end of the heating chamber 120 are connected to each other, and the cross-sectional shape and size of the second end 112 in the inlet chamber 110 and the heating chamber 120 The cross-sectional shape and size of are matched with each other. The inlet chamber 110 may adopt a method of gradually changing and transitioning from the first end 111 to the second end 112, so that the cross-sectional shape of the inlet chamber 110 changes from the circular shape of the first end 111 to the first end 111. It gradually changes to an equilateral triangle of the second stage 112. The shape of the outer cross-section of the body portion 115 matches the shape of the cross-section of the inlet chamber 110 with each other.

The end wall 116 is formed by extending the junction of the first end 111 and the second end 112 of the main body 115 to the outside along the radial direction. The ring wall 117 is closely fitted into the upper opening of the exterior 16, and is formed by extending the outer periphery of the end wall 116 vertically downward. The cross section of the ring wall 117 is ring-shaped, and one ring-shaped accommodation space is formed between the inner wall surface of the ring wall 117 and the outer wall surface of the body portion 115 to accommodate the first heat insulating member 155. there is.

A support wall 13 is fitted into the lower end opening of the heating tube 12, which is made of a metal or non-metal material with high thermal conductivity. The middle portion of the support wall 13 is bent upward to form one position limiting boss 14, and the lower surface of the aerosol generating substrate 200 is supported and fixed by being in close contact with the position limiting boss 14.

The outer shell 16 exhibits a circular tubular shape and adopts a metal with high thermal conductivity, including stainless steel, copper alloy, aluminum alloy, etc., preferably 430 stainless steel, copper or copper alloy, or the outer shell 16 is It can be made of non-metallic materials such as ceramics having high thermal conductivity including aluminum oxide, silicon carbide, aluminum nitride, silicon nitride, and the like. The exterior 16 is made of a material with high thermal conductivity, and is advantageous for uniformly generating heat from the heating assembly 1 .

In addition, in this embodiment, the heating assembly 1 further includes a heat insulation assembly 15 installed between the exterior 16 and the heating tube 12 . The heat insulation assembly 15 includes a first heat insulation layer 151, a second heat insulation layer 152, a third heat insulation layer 153, and a heat radiation layer 154, which are sequentially installed on the outside of the heating pipe 12. The first heat insulating layer 151 and the third heat insulating layer 153 use one or a combination of several of airgel, asbestos, glass fiber, polyether ether ketone, imide, polyetherimide, or ceramic as a material, preferably. It is an aerogel. The heat dissipation layer 154 uses a graphite sheet or a graphene sheet as a material.

The second heat insulation layer 152 may be a vacuum tube, and the heat insulation assembly 15 may further include a first heat insulation member 155 and a second heat insulation member 156 respectively installed at both ends of the vacuum tube in an axial direction. The first heat insulating member 155 and the second heat insulating member 156 may be made of a material having low thermal conductivity, and preferably made of an elastic material having a low thermal conductivity such as silicon. The first heat insulating member 155 and the second heat insulating member 156 wrap the high-temperature region at both ends of the vacuum tube, respectively, so that heat insulating and sealing functions may be realized. To be understood, in other embodiments, the thermal insulation assembly 15 may be formed of only one or a plurality of the first thermal insulation layer 151, the second thermal insulation layer 152, the third thermal insulation layer 153, and the thermal insulation layer 154. And, since the relative positional relationship of the first heat insulating layer 151, the second heat insulating layer 152, the third heat insulating layer 153, and the heat radiation layer 154 can also be adjusted as necessary, for example, the heat radiation layer 154 It may be installed between the first heat insulating layer 151 and the second heat insulating layer 152.

In this embodiment, the heating assembly 1 further includes a base 18 fitted to the bottom of the shell 16 . The base 18 may be made of a heat-resistant material such as PEEK, and the cover is installed in close contact between the inner wall surface of the exterior 16 and the outer wall surface of the second heat insulating member 156 .

In addition, the heating assembly 1 further includes a temperature detection element 19, which is installed on the bottom of the support wall 13 to detect the bottom temperature of the aerosol-generating substrate 200. At the same time, the number of suction ports can be detected through temperature change. The temperature detection element 19 is a thermistor with a negative temperature coefficient, and may be clamped between the supporting wall 13 and the second insulating member 156 .

18 to 19 show an aerosol generating device 100 of some embodiments of the present invention, the aerosol generating device 100 having a rectangular column shape and a housing 2 and a heating assembly 1 installed in the housing 2, It includes a main board (3) and a battery (4). Here, the heating assembly 1 may adopt the heating assembly structure of any one of the above embodiments. To be understood, in other embodiments, the aerosol-generating device 100 is not limited to a rectangular cylinder shape, it may also exhibit other shapes such as a rectangular cylinder shape, a cylindrical shape, an elliptical column shape, and the like.

A socket 20 into which an aerosol-generating substrate 200 is inserted is installed at the top of the housing 2, and the cross-sectional shape and size of the socket 20 are compatible with the cross-sectional shape and size of the aerosol-generating substrate 200, , The aerosol generating substrate 200 may be in contact with the inner wall surface of the heating assembly 1 when the socket 20 is inserted into the heating assembly 1 . After heat is generated through electricity to the heating assembly 1, the aerosol-generating substrate 200 can be baked and heated by transferring heat to the aerosol-generating substrate 200. The main board 3 is electrically connected to the battery 4 and the heating assembly 1, respectively. A control circuit associated with the main board 3 is disposed, and a switch 5 installed in the housing 2 can control an on-off state between the battery 4 and the heating assembly 1 . A dustproof cover 6 may be installed at the top of the housing 2 to cover or expose the socket 20 . When the aerosol generating device 100 is not needed, the socket 20 can be covered with the dust-proof cover 6 to prevent dust from entering the socket 20. 20) is exposed and the aerosol generating substrate 200 is inserted into the socket 20.

The aerosol-generating substrate 200 includes an outer wrapping layer 210 and an atomizing substrate 220 installed on the bottom of the outer wrapping layer 210 . Here, the outer wrapping layer 210 may be an outer wrapping paper. The atomization substrate 220 is a material used for medical or health promotion purposes, and examples thereof include plant materials such as solid sheets, thin and long plant roots, stems, and leaves. The aerosol generating device 100 proceeds to bake and heat the aerosol generating substrate 200 inserted and connected thereto at a low temperature to release the aerosol extract in the atomizing substrate 220 in a non-burning state. Furthermore, while the aerosol generating substrate 200 is installed on the outer lapping layer 210, the hollow support section 230, the cooling section 240, which are sequentially installed above the atomizing substrate 220 along the longitudinal direction, A filter section 250 is further included. The cross-sectional shape of the aerosol-generating substrate 200 is not limited to a circular shape, it may exhibit other shapes such as ovals, rectangles, polygons, and the like.

To be understood, each technical feature described above is in any combination and without limitation.

The above-described embodiment is only a more specific and detailed description of the preferred embodiment of the present invention, but should not be understood as limiting the scope of the patent of the present invention. A person skilled in the art may freely combine, as well as modify and improve, the above technical features without departing from the idea of the present invention, which shall fall within the protection scope of the present invention. Therefore, all equivalents and modifications to the scope of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims (18)

In the guide member,
used in a heating assembly of an aerosol generating device;
An inlet chamber 110 for introducing the aerosol-generating substrate 200 is formed in the guide member 11, and a first end 111 and a second end 112 installed opposite to each other in the inlet chamber 110 The first end 111 and the second end 112 have different cross-section shapes, and the second end 112 in the inlet chamber 110 has a cross-section area of the first end It is smaller than the area of the cross section of (111), and the introduction chamber 110 gradually changes from the first end 111 to the second end 112 and transitions. According to claim 1,
The guide member, characterized in that the area of the cross section of the second end (112) in the inlet chamber (110) is smaller than or equal to the area of the cross section of the aerosol generating substrate (200) to be introduced. According to claim 1,
The guide member, characterized in that the shape of the cross section of the second end 112 in the inlet chamber 110 is non-circular. According to claim 1,
The guide member, characterized in that the shape of the cross section of the second end 112 in the inlet chamber 110 is a polygon. According to claim 4,
The polygonal guide member, characterized in that it comprises a regular polygon or a Reuleaux polygonal (Reuleaux polygonal). According to claim 1,
The guide member, characterized in that the shape of the cross section of the first end 111 in the inlet chamber 110 matches the shape of the cross section of the aerosol generating substrate 200 to be introduced. According to claim 1,
The guide member, characterized in that the area of the cross section of the first end (111) in the inlet chamber (110) is greater than or equal to the area of the cross section of the aerosol generating substrate (200) to be introduced. According to claim 1,
The guide member, characterized in that the shape of the cross section of the first end 111 in the inlet chamber 110 is circular or polygonal. According to any one of claims 1 to 8,
A guide member, characterized in that a transition chamber 113 is further formed in the guide member 11, and the second end 112 of the transition chamber 113 and the inlet chamber 110 are connected to each other. According to claim 9,
The guide member, characterized in that the shape of the cross section of the transition chamber (113) and the shape of the cross section of the second end (112) of the inlet chamber (110) match each other. According to any one of claims 1 to 8,
An opening chamber 114 is further formed in the guide member 11, and the first end 111 of the opening chamber 114 and the inlet chamber 110 are connected to each other. According to claim 11,
The guide member, characterized in that the shape of the cross section of the opening chamber (114) coincides with the shape of the cross section of the aerosol generating substrate (200) to be introduced. According to claim 11,
The guide member, characterized in that the area of the cross section of the opening chamber (114) is greater than or equal to the area of the cross section of the first end (111) in the inlet chamber (110). According to any one of claims 1 to 8,
A guide member, characterized in that the guide member (11) is injection molded with a polymer compound. In the heating assembly,
It includes a heating tube (12) and the guide member (11) of any one of claims 1 to 14 connected to the heating tube (12), and the aerosol generating substrate (200) is accommodated in the heating tube (12). Heating assembly, characterized in that the heating chamber 120 is formed, and the second end 112 of the heating chamber 120 and the inlet chamber 110 are connected to each other. According to claim 15,
at least some chamber walls of the heating chamber 120 are capable of compressing the aerosol-generating substrate 200; One maximum inscribed circle is provided in the contour of the cross section in the heating chamber 120, the state of the aerosol-generating substrate 200 is accommodated in the heating chamber 120, and the diameter of the maximum inscribed circle is the aerosol-generating substrate ( 200) is smaller than the outer diameter before compression. According to claim 15,
The aerosol-generating substrate 200 is accommodated in the heating chamber 120, and at least one airflow passage 121 is provided between an outer wall surface of the aerosol-generating substrate 200 and a chamber wall of the heating chamber 120. Heating assembly, characterized in that further formed. In the aerosol generating device,
An aerosol-generating device comprising the heating assembly of any one of claims 15-17.

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