Hybrid heating smoking article

Abstract

The utility model discloses a kind of mixed heating smoking set, comprising: shell, with cavity, the shell upper end is equipped with the insertion port being communicated with the cavity;Heating part, it is set in the cavity, the gap between the outer wall of the heating part and the cavity inner wall has, the gap and cavity inner wall and heating part are enclosed and form air heating passage, the insertion passage for cigarette insertion is formed by the inner wall of the heating part and the cavity inner wall, the lower end end of the air heating passage and the insertion passage respectively with the outer portion of shell and end communication.In the meantime using heat conduction mode to heat outside cigarette, heated air in air heating passage directly flows into cigarette and contacts with tobacco to form heat convection, so that tobacco and hot air quickly carry out heat exchange, can quickly let tobacco whole reach effective baking temperature, reduce heating time, and tobacco whole and hot air carry out heat convection, realize the tobacco of inside and outside of cigarette is synchronously baked after reaching the release temperature of fragrance.

Description

Technical Field

[0001] This application relates to the field of smoking products technology, specifically to a hybrid heating smoking device. Background Technology

[0002] In existing technologies, heated tobacco products are mainly divided into two categories, with the core difference lying in the structural design of the heating element and the heating method: 1. Built-in insert heating element: This type of device is equipped with a heating element that can be inserted into the inside of the cigarette. During operation, the heating element heats directly inside the cigarette, heating the tobacco in a "from the inside out" manner; 2. External sleeve heating element: The heating element of this type of device has a cylindrical structure. The cigarette needs to be inserted into the cylindrical cavity of the heating element. After the heating element is activated, it heats the tobacco from the outside of the cigarette in a "from the outside in" manner. However, both of the above heating methods have obvious limitations: regardless of whether the heat transfer direction is "from the inside out" or "from the outside in," there is always a significant temperature difference between the inside and outside of the cigarette. This directly leads to a lower temperature in the tobacco area that is not in direct contact with the heating element, which easily results in insufficient heating and affects the release of the effective components of the tobacco. Meanwhile, the parts of the cigarette that are in long-term contact with the heating element experience localized overheating, which may cause the tobacco to carbonize at high temperatures and produce a burnt taste.

[0003] If the heating element temperature is lowered to extend the tobacco roasting time, the tobacco can be fully roasted and the risk of local overheating can be reduced. However, this will prolong the overall heating time, resulting in a slow release of flavor substances in the cigarette, which in turn affects the user's smoking response speed and experience. If the temperature of the heating element is increased to enhance the heat transfer efficiency from the contact area to the non-contact area, thereby indirectly increasing the temperature of the tobacco in the area not in contact with the heating element to accelerate the release of aroma, the tobacco in direct contact with the heating element is very likely to produce a burnt taste due to excessively high local temperature, which will ruin the smoking experience and also have a negative impact on the user experience. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes: A hybrid heating smoke appliance, comprising: A housing having a cavity, wherein the upper end of the housing is provided with an insertion port communicating with the cavity; A heating element is disposed within the cavity. A gap exists between the outer wall of the heating element and the inner wall of the cavity. This gap, together with the inner wall of the cavity and the heating element, forms an air heating channel. The inner wall of the heating element and the inner wall of the cavity form an insertion channel for inserting a cigarette stick. The two ends of the air heating channel are respectively connected to the outside of the housing and the lower end of the insertion channel.

[0005] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the heating part is ring-shaped.

[0006] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the insertion channel includes a middle channel and a first channel distributed above the middle channel, the heating element is disposed on the middle channel, and the diameter of the middle channel matches the outer diameter of the cigarette, the diameter of the first channel is larger than the outer diameter of the cigarette, and the housing is provided with an air inlet that communicates with the upper end of the air heating channel and the side of the first channel.

[0007] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: the inner wall of the first channel is provided with a plurality of limiting platforms, and the plurality of limiting platforms are distributed at intervals along the circumference of the first channel.

[0008] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the insertion channel includes a middle channel and a second channel distributed below the middle channel. The heating element is disposed on the middle channel, and the diameter of the middle channel matches the outer diameter of the cigarette. The diameter of the second channel is larger than the outer diameter of the cigarette. The housing is provided with an air outlet that communicates with the lower end of the air heating channel and the side of the second channel. The housing is provided with at least two supporting protrusions at the lower end of the cavity. The supporting protrusions are circumferentially distributed around the outer periphery of the insertion channel and are used to support the bottom of the cigarette.

[0009] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the housing is provided with a groove on the inner wall of the cavity, and an avoidance groove is provided on the groove wall of the groove opening. The edge of the heating part is embedded in the avoidance groove and connected and fixed to the housing.

[0010] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the upper end and the lower end of the groove are respectively provided with notches, the notch at the upper end of the groove is connected to the outside of the shell, and the notch at the lower end of the groove is connected to the second channel.

[0011] The technical solution adopted by one embodiment of this utility model to solve its technical problem is as follows: the housing includes an outer shell and an inner shell, the inner shell is disposed inside the outer shell and has the cavity, and the outer shell is also provided with a battery and a circuit board, the circuit board being electrically connected to the heating element.

[0012] The beneficial effects of this invention are as follows: the heating element heats the outside of the cigarette while simultaneously heating the air inside the air heating channel; when the user inhales the cigarette, negative pressure is generated inside the cigarette due to the airflow, forming an upward-flowing suction airflow. Under the action of the suction airflow, the heated air inside the air heating channel flows along the channel from its lower end to the lower end of the insertion channel, and then flows into the inside of the cigarette. When heating a cigarette using either a built-in insert heating element or an external sleeve heating element, the tobacco relies on heat conduction from the outside in or from the inside out, requiring a relatively long heating time to bring the tobacco to an effective baking temperature. In this application, while heating the outside of the cigarette using heat conduction, the heated air in the air heating channel flows directly into the cigarette and comes into contact with the tobacco to form thermal convection. Utilizing the efficient heat transfer characteristics of thermal convection, the tobacco and hot air exchange heat quickly, allowing the tobacco to reach the effective baking temperature rapidly, reducing heating time. Furthermore, the thermal convection between the tobacco and hot air results in a smaller temperature difference between the inside and outside of the cigarette, and a more uniform tobacco temperature. This allows the tobacco inside and outside the cigarette to be baked simultaneously to reach the aroma release temperature, ensuring the full and synergistic release of the aroma substances in the cigarette, ultimately achieving a smoking effect with a rich flavor and high utilization rate. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the hybrid heating fume appliance described in this embodiment during use; Figure 2 This is a cross-sectional view of the hybrid heating fume apparatus described in this embodiment; Figure 3 This is a schematic diagram of the mounting structure of the heating element described in this embodiment; Figure 4 This is a schematic diagram of the inner shell described in this embodiment. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0018] Reference Figure 1-4 The present application proposes an embodiment of the hybrid heating fume appliance, which includes: The housing 10 has a cavity 20, and the upper end of the housing 10 is provided with an insertion port 21 communicating with the cavity 20; A heating element 30 is disposed within the cavity 20. A gap exists between the outer wall of the heating element 30 and the inner wall of the cavity 20. This gap, together with the inner wall of the cavity 20 and the heating element 30, forms an air heating channel 40. The inner wall of the heating element 30 and the inner wall of the cavity 20 form an insertion channel 50 for inserting a cigarette holder 90. The two ends of the air heating channel 40 are respectively connected to the outside of the housing 10 and the lower end of the insertion channel 50.

[0019] When using the hybrid heating tobacco device described in this embodiment, the cigarette stick 90 is inserted into the insertion channel 50 through the insertion port 21 at the upper end of the housing 10, and the outer wall of the cigarette stick 90 is in close contact with the inner wall of the heating part 30. When the heating part 30 starts working, its heat is directly transferred to the outside of the cigarette stick 90 to heat the tobacco on the outside of the cigarette stick 90, causing the aroma substances in the tobacco to be released.

[0020] While heating the outside of the cigarette using heat conduction, heated air in the air heating channel flows directly into the cigarette and comes into contact with the tobacco, forming thermal convection. Utilizing the efficient heat transfer characteristics of thermal convection, the tobacco and hot air exchange heat rapidly, quickly bringing the tobacco to an effective baking temperature, reducing heating time. Furthermore, the thermal convection between the tobacco and hot air results in a smaller temperature difference between the inside and outside of the cigarette, leading to more uniform tobacco temperature. This ensures that the tobacco inside and outside the cigarette is baked simultaneously to reach the aroma release temperature, guaranteeing the full and synergistic release of aroma substances. Ultimately, this achieves a rich flavor and high utilization rate in smoking, solving the problems of "insufficient temperature in non-contact areas preventing effective aroma release" and "excessive localized temperature due to direct contact between the heating element and the tobacco." The heating element 30 is annular; specifically, in this embodiment, the heating element 30 uses a stainless steel heating tube, which contacts the inner wall of the heating element 30 when the cigarette 90 is inserted into the insertion channel 50.

[0021] In this embodiment, the insertion channel 50 includes a middle channel 51 and a first channel 52 distributed above the middle channel 51. The heating element 30 is disposed on the middle channel 51, and the diameter of the middle channel 51 matches the outer diameter of the cigarette 90. The diameter of the first channel 52 is larger than the outer diameter of the cigarette 90. The housing 10 is provided with an air inlet 41 that communicates with the upper end of the air heating channel 40 and the side of the first channel 52.

[0022] Preferably, the insertion channel 50 includes a first channel 52 distributed above the heating part 30. The diameter of the first channel 52 is larger than the outer diameter of the cigarette 90. The housing 10 is provided with an air inlet 41 that communicates with the upper end of the air heating channel 40 and the side of the first channel 52, so that the air heating channel 40 communicates with the outside of the housing 10.

[0023] The first section 52 of the insertion channel 50 is located above the heating element 30, and its diameter is larger than the outer diameter of the cigarette 90. After the cigarette 90 is inserted, the outer wall of the cigarette 90 will fit tightly against the inner wall of the heating element 30 in the middle channel 51, ensuring that the heat from the heating element 30 can be directly and efficiently transferred to the outside of the cigarette 90. At the same time, an annular gap will be formed between the outer wall of the cigarette 90 and the inner wall of the first section 52. The air inlet 41 on the housing 10 forms a connecting path of "upper end of air heating channel 40 → air inlet 41 → side of first section 52". When the user inhales, outside air enters the upper end of air heating channel 40 directly through air inlet 41. After the air entering air heating channel 40 mixes with the heated air, it flows into the cigarette 90 through the lower end of the insertion channel 50. It does not need to flow through the channel for heating throughout the entire process, and the airflow can be quickly replenished.

[0024] Preferably, the insertion channel 50 is provided with a plurality of limiting platforms 60 on the inner wall of the first segment channel 52, and the plurality of limiting platforms 60 are distributed at intervals along the circumference of the first segment channel 52.

[0025] Multiple limiting platforms 60 are spaced apart circumferentially along the inner wall of the cavity 20 of the first channel 52. When the cigarette 90 is inserted into the first channel 52, the outer wall of the cigarette 90 contacts the inner side of the limiting platform 60. Because the height of the limiting platform 60 is adapted to the diameter of the cigarette, the cigarette 90 is "encircled" and fixed by the limiting platform 60 in a circumferential direction after insertion, preventing the cigarette 90 from swaying left and right or shifting up and down during inhalation. The limiting platforms 60 adopt a "spaced distribution" rather than a "continuous ring" structure, and gaps are formed between adjacent limiting platforms 60. These gaps are connected to the annular gap between the first channel 52 and the cigarette 90, ensuring that the airflow can flow smoothly through the gaps without affecting the smoothness of inhalation.

[0026] Based on the above, in this embodiment, the insertion channel 50 includes a middle channel 51 and a second channel 53 distributed below the middle channel 51. The heating element 30 is disposed on the middle channel 51, and the diameter of the middle channel 51 matches the outer diameter of the cigarette 90. The diameter of the second channel 53 is larger than the outer diameter of the cigarette 90. The housing 10 is provided with an air outlet 42 that communicates with the lower end of the air heating channel 40 and the side of the second channel 53. The housing 10 is provided with at least two supporting protrusions 70 at the lower end of the cavity 20. The supporting protrusions 70 are distributed circumferentially around the insertion channel 50 and are used to support the bottom of the cigarette 90.

[0027] The second channel 53, located below the middle channel 51, has a diameter larger than the outer diameter of the cigarette 90. After the cigarette 90 is inserted, it forms a lower annular gap with the inner wall of the second channel 53, reserving space for airflow. The air outlet 42 on the housing 10 forms a connecting path of "lower end of air heating channel 40 → air outlet 42 → side of second channel 53". When the heating unit 30 starts working, on the one hand, through the close contact between the middle channel 51 and the cigarette 90, it directly heats the tobacco in the core area of ​​the cigarette 90, quickly stimulating the aroma substances; on the other hand, the heating unit 30 simultaneously heats the air in the air heating channel 40, forming high-temperature air.

[0028] When the user inhales, the high-temperature air in the air heating channel 40 flows directly through the air outlet 42 to the side of the second channel 53, and then flows along the annular gap between the second channel 53 and the lower part of the cigarette 90 to the supporting boss 70 and into the cigarette. The supporting boss 70 supports the outer edge of the bottom of the cigarette 90 circumferentially, fixing the position of the bottom of the cigarette 90 and reserving an airflow gap between the bottom of the cigarette 90 and the bottom of the cavity 20.

[0029] Preferably, the housing 10 has a groove 121 on the inner wall of the cavity 20, and an avoidance groove 122 is provided on the groove wall of the groove 121. The edge of the heating part 30 is embedded in the avoidance groove 122 and is connected and fixed to the housing 10.

[0030] The groove 121 on the inner wall of the cavity 20 provides installation space for the heating element 30. The relief groove 122 at the opening of the groove 121 is adapted to the edge shape of the heating element 30. During installation, the edge of the heating element 30 is aligned with the relief groove 122 and inserted. The side wall of the relief groove 122 will form a "radial limit" on the heating element 30 to prevent the heating element 30 from moving in the cavity 20. The depth of the relief groove 122 is adapted to the thickness of the heating element 30, so that after the heating element 30 is inserted into the relief groove 122, the outer wall of the cigarette 90 can contact the inner wall of the heating element 30.

[0031] The groove 121 has notches 80 at its upper and lower ends. The notch 80 at the upper end of the groove 121 communicates with the outside of the housing 10, and the notch 80 at the lower end of the groove 121 communicates with the second channel 53. The notch 80 at the upper end of the groove 121 forms the air inlet 41, and the notch 80 at the lower end of the groove 121 forms the air outlet 42.

[0032] Preferably, the housing 10 includes an outer shell 11 and an inner shell 12. The inner shell 12 is disposed inside the outer shell 11 and has the cavity 20. The outer shell 11 also contains a battery and a circuit board, and the circuit board is electrically connected to the heating element 30.

[0033] The inner shell 12 can play a certain role in heat insulation, reducing the direct transfer of heat from the heating part 30 to the outer wall of the outer shell 11, and preventing heat dissipation while reducing the risk of the outer shell 11 overheating.

[0034] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A hybrid heating smoke appliance, characterized in that, include: The housing (10) has a cavity (20), and the upper end of the housing (10) is provided with an insertion port (21) communicating with the cavity (20). A heating element (30) is disposed inside the cavity (20). There is a gap between the outer wall of the heating element (30) and the inner wall of the cavity (20). The gap, together with the inner wall of the cavity (20) and the heating element (30), forms an air heating channel (40). The inner wall of the heating element (30) and the inner wall of the cavity (20) form an insertion channel (50) for inserting a cigarette holder (90). The two ends of the air heating channel (40) are respectively connected to the outside of the housing (10) and the lower end of the insertion channel (50).

2. The hybrid heating smoke appliance according to claim 1, characterized in that, The heating element (30) is ring-shaped.

3. The hybrid heating smoke appliance according to claim 1, characterized in that, The insertion channel (50) includes a middle channel (51) and a first channel (52) distributed above the middle channel (51). The heating element (30) is disposed on the middle channel (51), and the diameter of the middle channel (51) matches the outer diameter of the cigarette (90). The diameter of the first channel (52) is larger than the outer diameter of the cigarette (90). The housing (10) is provided with an air inlet (41) that communicates with the upper end of the air heating channel (40) and the side of the first channel (52).

4. The hybrid heating smoke appliance according to claim 3, characterized in that, The inner wall of the first channel (52) is provided with a plurality of limiting platforms (60), and the plurality of limiting platforms (60) are distributed at intervals along the circumference of the first channel (52).

5. The hybrid heating smoke appliance according to any one of claims 1-4, characterized in that, The insertion channel (50) includes a middle channel (51) and a second channel (53) distributed below the middle channel (51). The diameter of the second channel (53) is larger than the outer diameter of the cigarette (90). The housing (10) is provided with an air outlet (42) that communicates with the lower end of the air heating channel (40) and the side of the second channel (53). The housing (10) is provided with at least two supporting bosses (70) at the lower end of the cavity (20). The supporting bosses (70) are distributed circumferentially around the insertion channel (50) and are used to support the bottom of the cigarette (90).

6. The hybrid heating smoke appliance according to claim 5, characterized in that, The housing (10) has a groove (121) on the inner wall of the cavity (20), and a relief groove (122) is provided on the groove wall of the groove (121). The edge of the heating part (30) is embedded in the relief groove (122) and connected and fixed to the housing (10).

7. The hybrid heating smoke appliance according to claim 6, characterized in that, The groove (121) has notches (80) at its upper and lower ends respectively. The notch (80) at the upper end of the groove (121) is connected to the outside of the shell (10), and the notch (80) at the lower end of the groove (121) is connected to the second channel (53).

8. The hybrid heating smoke appliance according to claim 1, characterized in that, The housing (10) includes an outer shell (11) and an inner shell (12). The inner shell (12) is disposed inside the outer shell (11) and has the cavity (20). The outer shell (11) also contains a battery (100) and a circuit board (110). The circuit board (110) is electrically connected to the heating element (30).

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