Aerosol generating device and heating assembly thereof

Abstract

The utility model relates to the technical field of aerosol generating devices, in particular to an aerosol generating device and a heating assembly thereof. A heating pipe of the aerosol generating device can transfer heat to the containing part, the containing part makes contact with the periphery of the aerosol generating rod and conducts heat, and the aerosol generating rod is heated. The air flow can be heated by the heating pipe, when the aerosol generating rod is sucked, the air flow heated by the heating pipe enters the aerosol generating rod to heat the aerosol generating matrix in the aerosol generating rod, and the aerosol generating matrix is heated more uniformly by the hot air flow. The aerosol generating rod is heated through the heat conduction effect of the containing part and the hot air flow, the problem that the aerosol generating rod is heated unevenly can be solved, and the user experience is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aerosol generating device, in particular to an aerosol generating device and a heating assembly thereof. BACKGROUND

[0002] An aerosol generating device is used to generate aerosol for a user to smoke. A current aerosol generating device generates aerosol by heating an aerosol generating stick. Specifically, the aerosol generating stick is inserted into the aerosol generating device, and an electric heating element in the aerosol generating device heats the aerosol generating stick to generate aerosol. The electric heating element usually needs to be controlled in temperature when heating the aerosol generating stick, so that the material in the aerosol generating stick for generating aerosol generates aerosol in a non-burning state.

[0003] The current aerosol generating device usually uses a heating tube to heat the aerosol generating stick. When in use, the aerosol generating stick is inserted into the heating tube, the inner surface of the heating tube is in contact with the outer surface of the aerosol generating stick, and the aerosol generating stick is heated by heat conduction. When the aerosol generating stick is heated in this way, the aerosol generating stick is unevenly heated, and the part of the aerosol generating stick in contact with the heating tube is easily over-baked, and the generated aerosol is easy to have a burnt taste, which results in poor user experience. CONTENT OF THE INVENTION

[0004] The present application provides a heating assembly of an aerosol generating device to improve the problem of uneven heating of the current aerosol generating stick, which results in poor user experience.

[0005] In addition, the present application also aims to provide an aerosol generating device using the above-mentioned heating assembly.

[0006] In a first aspect, a heating assembly for an aerosol generating device is provided in an embodiment, comprising:

[0007] a receiving member having a receiving cavity for inserting an aerosol generating stick, the receiving member being configured to be in heat-conducting contact with the aerosol generating stick to transfer heat to the aerosol generating stick;

[0008] and a heating tube in heat-conducting contact with the receiving member to transfer heat to the receiving member;

[0009] The heating tube has an airflow passage, and the heating tube is capable of heating the airflow passing through the airflow passage; the airflow passage is in communication with the receiving cavity to allow the airflow heated by the heating tube to enter the aerosol generating stick when the user smokes the aerosol generating stick.

[0010] Further, in an embodiment, the heating tube has a first opening at one end and a second opening at the other end, the opening of the accommodating cavity for insertion of the aerosol generating stick is an insertion opening, and the height of the second opening is greater than the height of the first opening when the insertion opening is upward, so that water vapor in the aerosol generating stick can be drawn out by the heating tube before a user draws the aerosol generating stick.

[0011] Further, in an embodiment, the height of the second opening is greater than the height of the insertion opening when the insertion opening is upward.

[0012] Further, in an embodiment, the accommodating member is cup-shaped, and includes a cup barrel and a cup bottom, the cup bottom has a cup bottom hole, and one end of the heating tube is in communication with the cup bottom hole or the heating tube passes through the cup bottom hole to communicate with the accommodating cavity.

[0013] Further, in an embodiment, the cup bottom includes a bottom plate and a positioning ring, the positioning ring extends along the edge of the bottom plate, the positioning ring is used to abut against the end face edge of the aerosol generating stick to form a gap between the cup bottom and the end face of the aerosol generating stick, and the cup bottom hole is on the bottom plate.

[0014] Further, in an embodiment, the heating tube is wound around the periphery of the accommodating member and reciprocally arranged in the direction of insertion of the aerosol generating stick, or the heating tube is spirally wound around the periphery of the accommodating member.

[0015] Further, in an embodiment, the heating tube is a flat tube, and the flat tube is attached to the accommodating member in the thickness direction of the flat tube.

[0016] Further, in an embodiment, the heating tube is an electric heating tube.

[0017] Further, in an embodiment, the heating tube includes a tube body and an electric heating member, and the electric heating member is embedded in the tube body or arranged on the periphery of the tube body.

[0018] In a second aspect, an embodiment provides an aerosol generating device, including a power supply assembly and a heating assembly, the power supply assembly supplies power to the heating assembly.

[0019] The heating assembly includes:

[0020] An accommodating member having an accommodating cavity for insertion of an aerosol generating stick, the accommodating member is used to make heat transfer contact with the aerosol generating stick to transfer heat to the aerosol generating stick;

[0021] and a heating tube in heat transfer contact with the accommodating member to transfer heat to the accommodating member.

[0022] The heating tube has an airflow passage, and the heating tube is capable of heating airflow passing through the airflow passage; the airflow passage is communicated with the accommodating cavity, so that the airflow heated by the heating tube enters the aerosol generating stick when a user sucks the aerosol generating stick.

[0023] Further, in an embodiment, an open end of the heating tube communicated with the accommodating cavity is a first opening, and the other end is a second opening; an opening of the accommodating cavity for inserting the aerosol generating stick is an insertion port; when the insertion port is upward, the height of the second opening is greater than the height of the first opening, so that water vapor in the aerosol generating stick can be drawn out by the heating tube before a user sucks the aerosol generating stick.

[0024] Further, in an embodiment, when the insertion port is upward, the height of the second opening is greater than the height of the insertion port.

[0025] Further, in an embodiment, the accommodating member is cup-shaped, and the accommodating member includes a cup barrel and a cup bottom; the cup bottom has a cup bottom hole, and one end of the heating tube is communicated with the cup bottom hole, or the heating tube passes through the cup bottom hole and is communicated with the accommodating cavity.

[0026] Further, in an embodiment, the cup bottom includes a bottom plate and a positioning ring, the positioning ring extends along the edge of the bottom plate, and the positioning ring is used to abut against the end face edge of the aerosol generating stick to form a gap between the cup bottom and the end face of the aerosol generating stick; the cup bottom hole is on the bottom plate.

[0027] Further, in an embodiment, the heating tube is wound around the periphery of the accommodating member and is arranged reciprocally in the direction of inserting the aerosol generating stick, or the heating tube is spirally wound around the periphery of the accommodating member.

[0028] Further, in an embodiment, the heating tube is a flat tube, and the flat tube is attached to the accommodating member in the thickness direction of the flat tube.

[0029] Further, in an embodiment, the heating tube is an electric heating tube.

[0030] Further, in an embodiment, the heating tube includes a tube body and an electric heating member, and the electric heating member is embedded in the tube body or is arranged on the periphery of the tube body.

[0031] According to the aerosol generating device of the above-mentioned embodiment, the heating tube of the aerosol generating device can transfer heat to the containing member, and the containing member is in contact with the outer periphery of the aerosol generating stick and conducts heat to heat the aerosol generating stick. The heating tube can heat the airflow, and when the aerosol generating stick is smoked, the airflow heated by the heating tube enters the aerosol generating stick to heat the aerosol generating substrate in the aerosol generating stick. The hot airflow heats the aerosol generating substrate more uniformly. By the heat conduction effect of the containing member and the heating of the aerosol generating stick by the hot airflow, the inside and the outer periphery of the aerosol generating stick can be heated, which can improve the problem of uneven heating of the aerosol generating stick and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 FIG. 1 is a structural schematic view of an aerosol generating stick inserted into a heating assembly of an aerosol generating device according to an embodiment;

[0033] Figure 2 FIG. 2 is a sectional view of the heating assembly of the aerosol generating device according to an embodiment;

[0034] Figure 3 FIG. 3 is a structural schematic view of the heating assembly of the aerosol generating device according to an embodiment.

[0035] List of feature names corresponding to reference numerals in the drawings: 1, aerosol generating stick; 11, mouthpiece end; 12, generating stick air inlet end; 13, mouthpiece; 2, containing member; 21, containing cavity; 211, insertion port; 22, cup barrel; 23, cup bottom; 231, cup bottom hole; 232, bottom plate; 233, positioning ring; 3, heating tube; 31, airflow passage; 32, first opening; 33, second opening; 4, spacing.

[0036] Explanation of reference numerals in parentheses in the drawings: In the reference numerals in parentheses in the drawings, the feature indicated by the reference numeral is both the feature represented by the number in the parentheses and the feature represented by the number outside the parentheses. DETAILED DESCRIPTION

[0037] The application will be described in further detail below with specific reference to the drawings. Like elements in different embodiments are denoted by like reference numerals. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without these specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure the application. In the following description, numerous specific details are described to provide a thorough understanding of the application. However, it will be apparent to one skilled in the art that the application can be practiced without these specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure the application.

[0038] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments. Meanwhile, the steps or actions in the method description can also be sequentially adjusted or adjusted in a manner that can be obviously seen by those skilled in the art. Therefore, the various sequences in the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the sequence is necessary, unless otherwise stated that a certain sequence must be followed.

[0039] The serial numbers of the components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any order or technical meaning. Unless otherwise specified, "connection", "coupling" in this application includes direct connection, indirect connection and contact connection (coupling) and the like.

[0040] Please refer to Figures 1 to 2 Before the heating assembly for the aerosol generating device is described in detail, first, the heating object of the heating assembly for the aerosol generating device, i.e. the aerosol generating stick 1, is described. In one embodiment, please refer to Figures 1 to 2 The aerosol generating stick 1 has a mouth end 11 and a stick air inlet end 12. The mouth end 11 has a mouthpiece 13 for suction. The mouthpiece 13 of the aerosol generating stick 1 has filter cotton. The stick air inlet end 12 is used to supply gas into the aerosol generating stick 1 when the aerosol generating stick 1 is suctioned. The aerosol generating stick 1 has an aerosol generating substrate, which is an aerosol filament or an aerosol sheet material for generating aerosol.

[0041] The aerosol generating stick 1 is a heat-not-burn stick. The aerosol generating stick 1 is heated by the aerosol generating device and does not burn. The aerosol generating substrate can generate aerosol after being heated.

[0042] In one embodiment, the aerosol generating device includes a power supply assembly and a heating assembly (not shown in the figure), and the power supply assembly supplies power to the heating assembly.

[0043] Please refer to Figures 1 to 3 The heating assembly comprises a receiving member 2 having a receiving cavity 21 for insertion of the aerosol generating stick 1, and a heating tube 3 for transferring heat to the aerosol generating stick 1 in heat-conducting contact with the aerosol generating stick 1.

[0044] The heating tube 3 is in heat-conducting contact with the receiving member 2 for transferring heat to the receiving member 2. The heating tube 3 has an airflow passage 31 through which the heating tube 3 can heat the airflow. The airflow passage 31 is in communication with the receiving cavity 21 for the heated airflow by the heating tube 3 to enter the aerosol generating stick 1 when the user puffs the aerosol generating stick 1.

[0045] The heating tube 3 can transfer heat to the receiving member 2, which is in contact with the outer periphery of the aerosol generating stick 1 and conducts heat to heat the aerosol generating stick 1. The heating tube 3 can heat the airflow, which enters the aerosol generating stick 1 when the user puffs the aerosol generating stick 1, to heat the aerosol generating substrate in the aerosol generating stick 1, and the heated airflow can heat the aerosol generating substrate more uniformly. By the heat conduction of the receiving member 2 and the heating of the aerosol generating stick 1 by the heated airflow, the problem of uneven heating of the aerosol generating stick 1 can be improved, and the user experience can be improved.

[0046] In an embodiment, the power supply assembly comprises a power source and a circuit board, and the heating tube 3 is an electric heating tube, and the power source supplies power to the heating tube 3. In an embodiment, when the power supply assembly is powered by a dry battery, the power supply assembly can also not comprise the dry battery, which can be provided by the user, and at this time, the power supply assembly can comprise a battery mounting structure for mounting the dry battery.

[0047] In an embodiment, the heating tube 3 is an electric heating tube. Specifically, in an embodiment, the heating tube 3 comprises a tube body and an electric heating element, and the electric heating element is embedded in the tube body or arranged on the outer periphery of the tube body.

[0048] Specifically, in an embodiment, the electric heating element is mounted on the outer wall of the tube body or embedded in the tube body. Specifically, the heating element and the tube body can adopt any feasible scheme, such as the electric heating element can be a resistance wire embedded in the tube body, at this time, the tube body is preferably made of an insulating and heat-conducting material, of course, an insulating layer can also be coated on the outer periphery of the resistance wire, at this time, the tube body can also be made of an electrically conductive material; for example, the electric heating element can also be a heating film printed on the outer peripheral surface of the tube body, at this time, the electric heating element and the tube body together form a thick film tube, and the heating film has an insulating layer outside, at this time, the tube body can be a metal tube with good heat conduction performance; for example, the electric heating element can also be a resistance wire wound on the outer wall of the tube body; for example, the electric heating element can also be an electric heating coating coated on the outer wall of the tube body.

[0049] Of course, in some other embodiments, the heat-generating tube 3 can also be a resistance tube, in which case the heat-generating tube 3 itself is an electric heating element.

[0050] At present, when the aerosol generating device is in use, the water content in the aerosol generating stick 1 is relatively high, and the water vapor content in the generated aerosol is also high. Therefore, the user's mouth is easily scalded when starting to smoke, and the comfort is poor. In order to further improve the user experience, in one embodiment, please refer to Figures 1 to 2 , the heat-generating tube 3 can use the chimney principle to draw out the water vapor from the aerosol generating stick 1. Specifically, in one embodiment, please refer to Figures 1 to 3 , the opening of the end of the heat-generating tube 3 communicating with the containing cavity 21 is the first opening 32, and the opening of the other end is the second opening 33. The opening of the containing cavity 21 for inserting the aerosol generating stick 1 is the insertion port 211. When the insertion port 211 is upward, the height of the second opening 33 is greater than the height of the first opening 32, so that the water vapor in the aerosol generating stick 1 can be drawn out by the heat-generating tube 3 before the user smokes the aerosol generating stick 1.

[0051] After the heat-generating tube 3 is heated, the water in the aerosol generating stick 1 is heated into water vapor. Since the height of the second opening 33 is greater than the height of the first opening 32, the air in the heat-generating tube 3 is heated and flows upward, and the water vapor in the containing cavity 21 is drawn into the heat-generating tube 3 and discharged. Therefore, the user's mouth is not easily scalded when smoking the aerosol generating stick 1.

[0052] In one embodiment, please refer to Figure 1 and Figure 3 , when the insertion port 211 is upward, the height of the second opening 33 is greater than the height of the insertion port 211. In this way, the height of the second opening 33 is higher, and the suction effect on the water vapor in the containing cavity 21 is better. In some other embodiments, the height of the second opening 33 can also be less than or equal to the height of the insertion port 211.

[0053] In one embodiment, please refer to Figures 1 to 3 , the containing member 2 is cup-shaped, and the containing member 2 includes a cup barrel 22 and a cup bottom 23. The cup bottom 23 has a cup bottom hole 231, and one end of the heat-generating tube 3 communicates with the cup bottom hole 231. Specifically, in one embodiment, the heat-generating tube 3 is inserted into the cup bottom hole 231. In one embodiment, the first opening 32 is flush with the inner opening of the cup bottom hole 231. In some embodiments, the heat-generating tube 3 and the containing member 2 can be connected together by any feasible way such as bonding, welding, clamping, or interference fit.

[0054] In one embodiment, please refer to Figures 1 to 3 , in addition to the heat-generating tube 3 communicating with the cup bottom hole 231 at one end, the heat-generating tube 3 can also communicate with the containing cavity 21 through the cup bottom hole 231, that is, the end of the heat-generating tube 3 can also extend into the containing cavity 21.

[0055] Further, in order to facilitate air intake of the aerosol generating stick 1, in an embodiment, please refer to Figures 1 to 3 The cup bottom 23 comprises a bottom plate 232 and a positioning ring 233 extending along the edge of the bottom plate 232, the positioning ring 233 is used to abut against the edge of the end face of the aerosol generating stick 1, so that a gap 4 is formed between the cup bottom 23 and the end face of the aerosol generating stick 1, and the cup bottom hole 231 is on the bottom plate 232. In this way, after the airflow enters the containing cavity 21 through the heating tube 3, it first enters the gap 4 between the cup bottom 23 and the aerosol generating stick 1, and then uniformly enters the aerosol generating stick 1 through the gap 4, which can more uniformly heat the aerosol generating stick 1.

[0056] In some other embodiments, the cup bottom 23 can also be without the positioning ring 233, at this time, the cup bottom 23 can be downwardly convexly tapered, so that a tapered groove is formed in the cup bottom 23, which can make the airflow more uniformly enter the aerosol generating stick 1.

[0057] In an embodiment, please refer to Figures 1 to 2 The heating tube is connected to the center of the cup bottom 23. In some other embodiments, the heating tube can be connected at any position of the cup bottom 23.

[0058] In an embodiment, please refer to Figures 1 to 3 In order to uniformly heat the containing member 2, the heating tube 3 is wound around the periphery of the containing member 2 and reciprocally arranged in the direction in which the aerosol generating stick 1 is inserted. In addition to the above arrangement, in some other embodiments, the heating tube 3 can also be spirally wound around the periphery of the containing member 2. In some other embodiments, in addition to the above arrangement, the heating tube 3 can also adopt any other feasible position, for example, the number of the heating tubes 3 is multiple, and the multiple heating tubes 3 are arranged side by side on the containing member 2.

[0059] In order to further improve the heat transfer speed, further, please refer to Figures 1 to 3 The heating tube 3 is a flat tube, and the flat tube is attached to the containing member 2 in the thickness direction of the flat tube. In some other embodiments, the heating tube 3 can also be a round tube or a square tube. In some other embodiments, in order to improve the heat transfer speed, a heat-conducting medium such as heat-conducting glue can also be filled between the heating tube 3 and the containing member 2.

[0060] In an embodiment of a heating assembly for an aerosol generating device, the structure of the heating assembly for the aerosol generating device is the same as that of the heating assembly described in any one of the above embodiments, and will not be repeated here.

[0061] The above describes the present application by using specific examples, which is only used to help understand the present application and does not limit the present application. According to the idea of the present application, a person skilled in the art of the present application can make several simple deductions, deformations or substitutions.

Claims

1. A heating assembly for an aerosol-generating device, characterized by, The heating tube is in heat contact with the accommodating member and transmits heat to the accommodating member. The heating tube has an airflow passage through which airflow can be heated by the heating tube; the airflow passage is in communication with the accommodating cavity so as to make the airflow heated by the heating tube enter the aerosol generating stick when a user puffs the aerosol generating stick. The second opening has a height greater than that of the first opening when the insertion opening is upward, so as to make the water vapor in the aerosol generating stick be drawn out by the heating tube before a user puffs the aerosol generating stick. The second opening has a height greater than that of the insertion opening when the insertion opening is upward. 2.The heating assembly for an aerosol-generating device of claim 1, wherein, The accommodating member is cup-shaped and includes a cup barrel and a cup bottom; the cup bottom has a cup bottom hole; one end of the heating tube is in communication with the cup bottom hole or the heating tube passes through the cup bottom hole to be in communication with the accommodating cavity. 3.The heating assembly for an aerosol-generating device of claim 2, wherein, The cup bottom includes a bottom plate and a positioning ring extending along the edge of the bottom plate; the positioning ring is used to abut against the end face edge of the aerosol generating stick to form a space between the cup bottom and the end face of the aerosol generating stick; and the cup bottom hole is on the bottom plate.

4. The heating assembly for an aerosol-generating device according to any one of claims 1 to 3, wherein, The heating tube is wound around the periphery of the accommodating member and is reciprocally arranged in the direction in which the aerosol generating stick is inserted, or the heating tube is spirally wound around the periphery of the accommodating member. 5.The heating assembly for an aerosol generating device of claim 4, wherein, The heating tube is a flat tube which is attached to the accommodating member in the thickness direction of the flat tube.

6. The heating assembly for an aerosol-generating device according to any one of claims 1 to 3, wherein, The heating tube is an electric heating tube.

7. The heating assembly for an aerosol-generating device according to any one of claims 1 to 3, wherein, The heating tube includes a tube body and an electric heating element embedded in the tube body or arranged on the periphery of the tube body.

8. The heating assembly for an aerosol-generating device according to any one of claims 1 to 3, wherein, The heating assembly includes a power supply assembly which supplies power to the heating assembly. 9.The heating assembly for an aerosol-generating device of claim 8, wherein, ​ 10. An aerosol-generating device comprising: ​

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