Heating structure and heating cigarette smoking set

Abstract

The invention discloses a heating structure and a heating cigarette smoking set, the heating structure comprises a shell, a cavity is defined by the shell, the inner wall of the shell comprises a first inner wall and a second inner wall, airflow is heated in the cavity corresponding to the first inner wall and flows to the cavity corresponding to the second inner wall, and the area of the first inner wall is larger than or equal to that of the second inner wall. The first inner wall of the heating structure can generate heat to heat air passing through the cavity, the temperature of air flow rises after the air flow passes through the cavity corresponding to the first inner wall, and the air flow enters the cavity corresponding to the second inner wall to heat the aerosol generating substrate, so that aerosol is generated. Due to the fact that the area of the first inner wall is larger than or equal to that of the second inner wall, airflow can be fully heated in the cavity corresponding to the first inner wall with a large heat conduction area, the heated airflow can flow in the cavity corresponding to the second inner wall with smaller resistance, and a user smoother smoother smoother in suction.

Description

Technical Field

[0001] The present application relates to the technical field of heated cigarette products, and in particular to a heating structure and a heated cigarette smoking device. Background Art

[0002] In the field of heating without burning, air heating is a new heating method. The specific heating method is to heat the air in the airflow heating element at the bottom of the smoke-generating body, and then use hot air convection to conduct the hot air from bottom to top to heat the cigarette. Compared with ordinary heat conduction heating methods, it has better heating uniformity and penetration. In order to fully heat the air, at present, most air-heating smoking tools set different structural forms for the bottom heat source to form a variety of airflow channels to fully heat the air and heat the cigarette. However, the existing heating structure has the problem of low heat transfer efficiency or increased airway suction resistance, which affects the user's smoking experience. Summary of the invention

[0003] The present invention provides a heating structure and a heating cigarette smoking device to solve the technical problems in the prior art that the heating structure has low heat transfer efficiency or causes increased airway suction resistance.

[0004] To achieve the above object, the technical solution provided by the present invention is as follows: According to a first aspect of the present invention, a heating structure is provided, comprising a shell, wherein the shell is arranged to form a cavity, and the inner wall of the shell comprises a first inner wall and a second inner wall, wherein the air flow is heated in the cavity corresponding to the first inner wall and flows toward the cavity corresponding to the second inner wall, and the area of ​​the first inner wall is greater than or equal to the area of ​​the second inner wall.

[0005] Furthermore, the roughness of the first inner wall is greater than or equal to the roughness of the second inner wall.

[0006] Furthermore, a first rib is formed on the first inner wall, and the first rib extends along the length direction of the inner wall, or extends along the arc direction of the inner wall.

[0007] Furthermore, there are a plurality of first ribs, and the plurality of first ribs are evenly spaced and arranged.

[0008] Furthermore, the cross section of the first rib is circular, square or triangular.

[0009] Furthermore, a spiral second rib is formed on the first inner wall, and the second rib extends along the length direction of the first inner wall.

[0010] Furthermore, the cross-sectional area of ​​the shell increases gradually along the flow direction of the airflow.

[0011] Furthermore, the roughness of the two ends of the inner wall is greater than the roughness of the remaining parts of the inner wall.

[0012] Furthermore, the heating structure also includes a heat insulation layer, and the heat insulation layer is coated on the outer peripheral side of the shell.

[0013] A second aspect of the present invention provides a heated cigarette smoking device, comprising the above-mentioned heating structure.

[0014] In the heating structure provided by the present invention, the first inner wall can generate heat to heat the air passing through the cavity. The temperature of the air flow increases after passing through the cavity corresponding to the first inner wall, and the air flow enters the cavity corresponding to the second inner wall to heat the aerosol generating matrix, thereby generating aerosol. Since the area of ​​the first inner wall is greater than or equal to the area of ​​the second inner wall, the air flow can be fully heated in the cavity corresponding to the first inner wall with a larger heat conduction area, and the heated air flow can flow in the cavity corresponding to the second inner wall with less resistance, so that the user can inhale more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a first structural schematic diagram of a heating structure in an embodiment of the present invention; Figure 2 for Figure 1 A cross-sectional view of Figure 3 for Figure 1 Bottom view of Figure 4 A second structural cross-sectional view of the heating structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second rib structure of the third structure of the heating structure in an embodiment of the present invention; Figure 6 It is a fourth structural cross-sectional view of the heating structure in the embodiment of the present invention.

[0017] Reference numerals: 10. Shell; 11. first inner wall; 111. first rib; 112. second rib; 12. Second inner wall; 13. Thermal insulation layer. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0023] According to a first aspect of an embodiment of the present application, a heating structure is provided, including a shell 10, wherein the shell 10 is arranged to form a cavity, and the inner wall of the shell 10 includes a first inner wall 11 and a second inner wall 12. The air flow is heated in the cavity corresponding to the first inner wall 11 and flows toward the cavity corresponding to the second inner wall 12, and the area of ​​the first inner wall 11 is greater than or equal to the area of ​​the second inner wall 12.

[0024] In the embodiment of the present application, the portion of the shell 10 corresponding to the first inner wall 11 is the heating portion of the heating structure, which can generate heat after being powered on, thereby heating the air flow in the cavity. If the portion of the shell 10 corresponding to the first inner wall 11 only includes a high thermal conductivity material, a conductive member can be attached to the first inner wall 11, and heat is transferred to the first inner wall 11 after the conductive member is powered on, so that the first inner wall 11 is heated; if the portion of the shell 10 corresponding to the first inner wall 11 includes a material with high conductivity but average thermal conductivity, or includes a high thermal conductivity material and a high conductivity material, the first inner wall 11 can be powered on to achieve self-heating. The material of the portion of the shell 10 corresponding to the second inner wall 12 can be the same as the material of the portion of the shell 10 corresponding to the first inner wall 11, or it can be different, and can be selected according to actual conditions.

[0025] In the embodiment of the present application, the area of ​​the first inner wall 11 is set to be greater than or equal to the area of ​​the second inner wall 12, so that the airflow can be fully heated in the cavity corresponding to the first inner wall 11 with a larger heat conduction area, and the heated airflow can flow in the cavity corresponding to the second inner wall 12 with less resistance, so that the user can inhale more smoothly. The heated airflow enters the cavity corresponding to the second inner wall 12 to heat the aerosol generating matrix, thereby generating aerosol.

[0026] In some embodiments, the roughness of the first inner wall 11 is greater than or equal to the roughness of the second inner wall 12. In the embodiment of the present application, by setting the roughness of the first inner wall 11 and the second inner wall 12, the airflow can flow longer in the cavity corresponding to the first inner wall 11, which is convenient for heat transfer; at the same time, the heated airflow can flow quickly in the cavity corresponding to the second inner wall 12 with less resistance.

[0027] In some other embodiments, a first rib 111 is formed on the first inner wall 11, and the first rib 111 extends along the length direction of the inner wall, or extends along the arc direction of the inner wall. Figures 1 to 4 The first rib 111 protrudes from the first inner wall 11 into the cavity, which can further increase the area of ​​the first inner wall 11, thereby increasing the heating area of ​​the air flow when passing through the cavity. Further, there are multiple first ribs 111, and the multiple first ribs 111 are evenly spaced. The multiple first ribs 111 evenly spaced make the air flow passing through the cavity more evenly heated. Specifically, the cross-section of the first rib 111 is circular, square or triangular.

[0028] In some embodiments, a spiral second rib 112 is formed on the first inner wall 11, and the second rib 112 extends along the length direction of the first inner wall 11. Figure 5The second rib 112 is spiral and protrudes from the first inner wall 11 into the cavity. The second rib 112 is arranged along the length direction of the first inner wall 11, which can further increase the area of ​​the first inner wall 11, thereby increasing the heating area when the air flows through the cavity.

[0029] In some embodiments, the cross-sectional area of ​​the housing 10 increases along the flow direction of the airflow. Figure 6 , the air flows from the cavity corresponding to the first inner wall 11 to the cavity corresponding to the second inner wall 12. The cross-sectional area of ​​the housing 10 increases along the flow direction of the airflow, that is, the cavity gradually decreases from the first inner wall 11 to the second inner wall 12, so that the airflow flows in the cavity corresponding to the first inner wall 11 for a longer time, which is convenient for heat transfer of the airflow; at the same time, the heated airflow flows quickly in the cavity corresponding to the second inner wall 12 with less resistance.

[0030] In some embodiments, the roughness of the two ends of the inner wall is greater than the roughness of the rest of the inner wall. In the above application embodiment, the roughness of the two ends of the inner wall is set to be the largest, which can make the air flow enter and leave the cavity more smoothly and further reduce the flow resistance.

[0031] In some embodiments, the heating structure further includes a heat insulating layer 13, which is coated on the outer peripheral side of the shell 10. In the embodiment of the present application, the heat insulating layer 13 is disposed on the outer peripheral side of the shell 10 to prevent heat from being lost to the outside of the cavity. The heat insulating layer 13 can be made of heat insulating materials such as aerogel and vacuum insulation pipe.

[0032] According to a second aspect of the embodiments of the present application, a heated cigarette smoking device is provided, comprising the heating structure of the embodiments of the above-mentioned application.

[0033] When using the heated cigarette smoking device of the embodiment of the present application, the cigarette is fixed in the cavity corresponding to the second inner wall 12. After the air flow is heated by the cavity corresponding to the first inner wall 11, it flows into the cavity corresponding to the second inner wall 12 to heat the cigarette, generating aerosol for the user to inhale.

[0034] The heated cigarette smoking device of the embodiment of the present application includes the heating structure of the above embodiment, so the effects of the above embodiment are also possessed by the embodiment of the present application, which will not be described in detail here.

[0035] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating structure, characterized in that: It includes a shell, which encloses a cavity. The inner wall of the shell includes a first inner wall and a second inner wall. The airflow is heated in the cavity corresponding to the first inner wall and flows to the cavity corresponding to the second inner wall. The area of ​​the first inner wall is greater than or equal to the area of ​​the second inner wall.

2. The heating structure according to claim 1, characterized in that: The roughness of the first inner wall is greater than or equal to the roughness of the second inner wall.

3. The heating structure according to claim 1, characterized in that: A first rib is formed on the first inner wall, and the first rib extends along the length direction of the inner wall or along the arc direction of the inner wall.

4. The heating structure according to claim 3, characterized in that: There are multiple first ribs, and the multiple first ribs are evenly spaced and arranged.

5. The heating structure according to claim 3, characterized in that: The cross section of the first rib is circular, square or triangular.

6. The heating structure according to claim 1, characterized in that: A spiral second rib is formed on the first inner wall, and the second rib extends along the length direction of the first inner wall.

7. The heating structure according to any one of claims 1 to 6, characterized in that: The cross-sectional area of ​​the shell increases along the flow direction of the airflow.

8. The heating structure according to any one of claims 1 to 6, characterized in that: The roughness of the two ends of the inner wall is greater than the roughness of the remaining parts of the inner wall.

9. The heating structure according to any one of claims 1 to 6, characterized in that: The heating structure further includes a heat insulation layer, and the heat insulation layer is coated on the outer peripheral side of the shell.

10. A heated cigarette smoking device, characterized in that: The heating structure comprises the heating structure according to any one of claims 1 to 9.

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