Aerosol generating device

Abstract

An aerosol generating device, comprising a housing. An accommodating member for placing an aerosol generating product and a heating assembly are provided in the housing, the accommodating member is not in contact with the heating assembly. When the aerosol generating product is inserted, air in the housing is heated by the heating assembly, and during vaping by a user, the heated air flows through the accommodating member to heat and bake the aerosol generating product placed in the accommodating member, so as to generate an aerosol for the user to vape. The accommodating member is not in contact with the heating assembly, and the aerosol generating product is placed in the accommodating member, so that the aerosol generating product is not in direct contacts with the heating assembly, thereby solving the problem of uneven heating.

Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application is a continuation of International Patent Application No. PCT / CN2023 / 125258, filed on October 18, 2023. The contents of the above-identified applications are incorporated herein by reference.FIELD

[0002] The present invention relates to the field of aerosol generating technology, and more specifically, relates to an aerosol generating device.BACKGROUND

[0003] With the popularization of electronic products in cigarette technology, more and more smokers are turning to electrically operated aerosol generating devices. Specifically, there is an aerosol generating device designed for heating non-combustible tobacco products, which mainly works by low-temperature baking the non-combustible tobacco with a heating element to generate aerosol, which is then inhaled by users.

[0004] In the above-mentioned aerosol generating device, the heating element is in direct contact with the aerosol generating substrate, and the heating temperature is relatively high, making the aerosol generating substrate prone to overburning and producing a burnt taste. Therefore, the prior art adopts a gasket to partially contact the aerosol generating substrate with the heating assembly to generate aerosol. However, this technology causes the area where the gasket contacts the aerosol generating substrate to have a high temperature, resulting in uneven heating temperatures.SUMMARY

[0005] A technical problem to be solved by the present invention is to provide an aerosol generating device that is simple in structure, easy to carry, and capable of uniformly heating an aerosol generating substrate.

[0006] A technical solution adopted by the present invention to solve the technical problem is to provide an aerosol generating device including a housing, an accommodating member for placing an aerosol generating product and a heating assembly are provided in the housing, the accommodating member is not in contact with the heating assembly, and air heated by the heating assembly flows through the accommodating member to heat the aerosol generating product to generate aerosol.

[0007] In some embodiments, the accommodating member and the heating assembly are axially spaced apart.

[0008] In some embodiments, the accommodating member is provided with a first end portion and a limiting structure, the first end portion is provided with an opening for inserting the aerosol generating product, the limiting structure corresponds to the first end portion, and the heating assembly is disposed on a side close to the limiting structure.

[0009] In some embodiments, the heating assembly includes a heating element and a support frame configured for mounting the heating element, and the support frame is provided with a second opening facing the accommodating member.

[0010] In some embodiments, the accommodating member and the heating assembly are axially spaced apart to form a first air passage; a second air passage for air to pass through is provided in the heating element and the support frame, the second air passage is in communication with the second opening; and the first air passage, the second air passage and the accommodating member are in communication with each other.

[0011] In some embodiments, the aerosol generating device further includes a sleeve, the sleeve is sleeved on an outer periphery of the support frame and the accommodating member to form at least a part of a third air passage, and the third air passage is in communication with the first air passage and / or the second air passage.

[0012] In some embodiments, the housing is sleeved on an outer periphery of the sleeve to form an air inlet passage, the housing is provided with an air inlet hole for air to enter, and the air inlet hole, the air inlet passage and the third air passage are in communication with each other.

[0013] In some embodiments, the heating element has a hollow structure with two ends penetrating therethrough.

[0014] In some embodiments, a side wall of the heating element is provided with an air inlet hole.

[0015] In some embodiments, the accommodating member and the heating assembly are laterally spaced apart.

[0016] The present invention provides the aerosol generating device, wherein the heating assembly and the accommodating member for placing the aerosol generating product are arranged in the housing of the aerosol generating device. When the aerosol generating product is inserted, the heating assembly heats the air inside the housing. When the aerosol generating product is inserted, air in the housing is heated by the heating assembly. When the user inhales, the heated air flows through the accommodating member, to heat and bake the aerosol generating product placed in the accommodating member, thereby generating aerosol for the user to inhale. Moreover, the accommodating member and the heating assembly are arranged in a non-contact manner, and the aerosol generating product is placed in the accommodating member, therefore the aerosol generating product is not in direct contact with the heating assembly. Compared with the conventional design where the accommodating member is in direct contact with the heating assembly and heat transfers directly to the aerosol generating product in the accommodating member, the present invention can more effectively solve the problem of uneven heating of the aerosol generating product and improve the user experience. In addition, the heat generated by the heating assembly of the present invention is mainly conducted to the aerosol generating product through an air medium, which has a high thermal efficiency and improves the heating effect of the aerosol generating device of the present invention on the aerosol generating product.BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. In the drawings:

[0018] FIG. 1 is a structural schematic diagram of an aerosol generating system formed by assembling an aerosol generating device with an aerosol generating product in some embodiments of the present invention;

[0019] FIG. 2 is a cross-sectional view of the aerosol generating device shown in FIG. 1;

[0020] FIG. 3 is an enlarged schematic diagram of a partial structure of the aerosol generating device shown in FIG. 1;

[0021] FIG. 4 is an exploded view of a partial structure of the aerosol generating device shown in FIG. 1.DETAILED DESCRIPTION

[0022] In order to obtain a clearer understanding of the technical features, objectives, and advantages of the present invention, specific embodiments of the present invention are described in detail with reference to the accompanying drawings.

[0023] FIG. 1 and FIG. 2 illustrate some preferred embodiments of an aerosol generating system of the present invention. The aerosol generating system may include an aerosol generating device 100 and an aerosol generating product 200, wherein the aerosol generating device 100 is configured to heat the aerosol generating product 200 to generate aerosol for the user to inhale. The aerosol generating product 200 is detachably assembled onto the aerosol generating device 100, and is capable of generating aerosol when heated.

[0024] In some embodiments, the aerosol generating article 200 is columnar in shape, and more specifically, the aerosol generating article 200 is cylindrical in shape. The aerosol generating article 200 includes an aerosol generating substrate section 201 and a filter section 202 oppositely disposed to each other. The aerosol generating substrate section 201 includes tobacco material that can be heated, and the filter section 202 is an acetate fiber filter section for filtration and inhalation. The tobacco material may include but is not limited to tobacco leaves, tobacco ribs, tobacco stems, tobacco stalks, tobacco powder, expanded tobacco or homogeneous tobacco material formed by reconstitution process.

[0025] As shown in FIG. 2 to FIG. 3, in some embodiments, the aerosol generating device 100 may include an outer shell 10 and an accommodating module 20. The outer shell 10 may have a hollow columnar shape, and an inner cavity of the outer shell 10 forms a receiving cavity 11 configured for accommodating the accommodating module 20. In some embodiments, a cross section of the outer shell 10 may be substantially circular, and of course, the cross section of the outer shell 10 is not limited to being circular. In some embodiments, one end of the outer shell 10 is provided with an insertion port for inserting the aerosol generating product 200.

[0026] As shown in FIG. 3 to FIG. 4, in some embodiments, the accommodating module 20 includes a housing 21 and a base 22. The housing 21 has a tubular structure, one end of the housing 21 is provided with an end wall 211, and another end of the housing 21 is an open structure for being sleeved on the base 22. The housing 21 is provided with an air inlet hole 2111, wherein the air inlet hole 2111 is arranged on the end wall 211 for allowing external air to enter the accommodating module 20. Further, the housing 21 has a first opening 2112, wherein the first opening 2112 is located at one end of the housing 21 in the length direction thereof and configured for inserting the aerosol generating product 200 into the housing 21.

[0027] As shown in FIG. 3 to FIG. 4, in some embodiments, the accommodating module 20 further includes a sleeve 23. The sleeve 23 is disposed in the housing 21 and spaced apart from the housing 21. The sleeve 23 is a heat-insulating member with two ends penetrating therethrough, which can block heat to prevent heat from diffusing outward from the housing 21 to the outer shell 10, thereby avoiding the discomfort caused by the excessively high temperature of the body to the user.

[0028] As shown in FIG. 3 to FIG. 4, in some embodiments, the accommodating module 20 further includes an accommodating member 24 and a heating assembly 25, and the sleeve 23 is sleeved on an outer periphery of the accommodating member 24 and the heating assembly 25. The accommodating member 24 is in communication with the first opening 2112 and has an accommodating cavity 240 configured for accommodating at least a part of the aerosol generating product 200. In some embodiments, the accommodating member 24 has a first end portion 241 and a second end portion 242 opposite to each other. The first end portion 241 is coaxially disposed with the first opening 2112, and is connected to the first opening 2112 for inserting the aerosol generating product 200. The accommodating member 24 has a limiting structure 2421, wherein the limiting structure 2421 is provided at the second end portion 242 and is configured for supporting the aerosol generating product 200. It can be understood that the limiting structure 2421 can not only support the aerosol generating product 200, but also separate the aerosol generating product 200 from the heating element 252 to prevent them from contacting each other. Of course, the limiting structure 2421 is not limited to being a partition, a protrusion or a protruding ring. In some embodiments, the limiting structure 2421 is provided with an airflow hole 2422 on the side close to the heating assembly 25. One or more airflow holes 2422 may be provided.

[0029] Referring to FIG. 3 and FIG. 4, in some embodiments, the heating assembly 25 is configured to heat the aerosol generating substrate section 201. The heating assembly 25 is spaced apart from the limiting structure 2421, such that the accommodating member 24 and the heating assembly 25 are not in contact with each other in an axial direction of the first opening 2112, thereby ensuring that the heating assembly 25 does not contact the aerosol generating substrate section 201. The heat generated by the heating assembly 25 is transferred to the accommodating cavity 240 through the airflow hole 2422 to heat the aerosol generating substrate section 201 to generate aerosol.

[0030] In some embodiments, the heating assembly 25 may include a support frame 251 and a heating element 252. An installation cavity 250 is formed in the support frame 251 for accommodating the heating element 252, and the support frame 251 has a second opening 2501 facing the accommodating cavity 240. The support frame 251 is disposed on the side of the second end portion 242 opposite to the first end portion 241, and the support frame 251 is spaced apart from the limiting structure 2421 in the axial direction of the first opening 2112 to form a first air passage 261. The heating element 252 is accommodated in the support frame 251. The surrounding air is heated by the heat generated by the heating assembly 25 when powered on, and the heated air is then transferred to the accommodating cavity 240 through the airflow hole 2422 to heat the aerosol generating substrate section 201 to generate aerosol.

[0031] In some embodiments, a second air passage 262 in communication with the second opening 2501 is formed in the heating element 252 and the support frame 251, and the first air passage 261, the second air passage 262, and the airflow hole 2422 are intercommunicated.

[0032] In some embodiments, the airflow passage 26 further includes a third air passage 263. Specifically, the sleeve 23 is sleeved on the outer periphery of the support frame 251 and the accommodating member 24 to form at least a part of the third air passage 263. In some embodiments, the third air passage 263 is in communication with the first air passage 261 and / or the second air passage 262. Specifically, the third air passage 263 is disposed on the outer periphery of the first air passage 261 and the second air passage 262. The third air passage 263 is in communication with the first air passage 261 and / or the second air passage 262, which can extend the airflow path and thereby reduce the heat loss of the heating element 252.

[0033] In some embodiments, the housing 21 is sleeved on the outer periphery of the sleeve 23, and an air inlet passage 264 is formed between the housing 21 and the sleeve 23. The air inlet passage 264 is located on the outer periphery of the third air passage 263. Preferably, the air inlet hole 2111, the air inlet passage 264, and the third air passage 263 are communicated to form a part of the airflow passage 26. The air inlet passage 264 may extend along the axial direction of the housing 21, allowing external air to enter the third air passage 263.

[0034] When the user inhales, the air entering through the air inlet hole 2111 passes through the air inlet passage 264 into the third air passage 263. Since the third air passage 263 surrounds the outer periphery of the heating assembly, the heat conducted outward from the heating element can preheat the air entering the third air passage 263. Part of the preheated air enters the first air passage 261 from the third air passage 263; part of the air enters the second air passage 262 in the heating element 252 from the third air passage 263 and the air inlet through hole 2521, or from the bottom of the heating element 252, and is heated to form a high-temperature airflow. The high-temperature airflow is mixed with the airflow in the first air passage 261 through the second opening 2501, then enters the accommodating cavity 240 through the airflow hole 2422 to heat the aerosol generating substrate section 201, thereby generating aerosol for the user to inhale. Since the high-temperature airflow is mixed with the lower-temperature airflow in the first air passage 261 through the second opening 2501, the final heating temperature is reduced, which can prevent the outer packaging paper of the aerosol generating substrate section 201 from producing an unpleasant odor due to excessively high temperature, avoiding a bad experience for the user during inhalation.

[0035] In some embodiments, the heating element 252 has a hollow structure with two ends penetrating through in the axial direction. Air enters the accommodating cavity 240 through the airflow hole 2422 at the bottom of the heating element 252, carrying the heat generated by the heating element 252 to the accommodating cavity 240 to heat the aerosol generating substrate section 201. This configuration and heating method of the heating element 252 can improve the heating efficiency.

[0036] In some embodiments, a side wall of the heating element 252 is provided with an air inlet through hole 2521, which allows external air to enter the heating element 252, thereby carrying the heat generated by the heating element 252 to the aerosol generating product 200.

[0037] In some embodiments, the accommodating member 24 and the heating assembly 25 may be arranged laterally spacing apart.

[0038] In some embodiments, the aerosol generating device 100 further includes a power supply structure 30, which may be accommodated in the outer shell 10 and coaxially arranged with the accommodating module 20. The power supply structure 30 is configured to supply power to the heating element 252. In some embodiments, the power supply structure 30 may be a battery.

[0039] The present invention provides an aerosol generating device, wherein a heating assembly 25 and an accommodating member 24 for placing an aerosol generating product 200 are arranged in the housing of the aerosol generating device. When the aerosol generating product 200 is inserted, the air in the housing is heated by the heating assembly 25. When the user inhales, air enters through the air inlet hole 2111, passes through the air inlet passage 264 and then flows through the third air passage 263. Since the third air passage 263 surrounds the outer periphery of the heating assembly 25, the heat conducted outward from the heating element 252 preheats the air entering the third air passage 263. Part of the preheated air enters the first air passage 261 from the third air passage 263; part of the air enters the second air passage 262 in the heating element 252 from the third air passage 263 and the air inlet through hole 2521, or from the bottom of the heating element 252, and is heated to form a high-temperature airflow. The high-temperature airflow is mixed with the airflow in the first air passage 261 through the second opening 2501, then enters the accommodating cavity 240 through the airflow hole 2422 to heat the aerosol generating substrate section 201, thereby generating aerosol for the user to inhale. Since the high-temperature airflow is mixed with the lower-temperature airflow in the first air passage 261 through the second opening 2501, the final heating temperature is reduced, which can prevent the outer packaging paper of the aerosol generating substrate section 201 from producing an unpleasant odor due to excessively high temperature, avoiding a bad experience for the user during inhalation. Moreover, the accommodating member 24 is provided with a limiting structure 2421, which abuts against the aerosol generating product 200 to achieve a non-contact arrangement between the aerosol generating product 200 and the heating assembly 25. Compared with the conventional design where the accommodating member 24 and the heating assembly 25 are in direct contact, transferring heat directly to the aerosol generating product 200 inside the accommodating member 24, the present invention can more effectively solve the problem of uneven heating of the aerosol generating substrate section 201, thereby improving the user experience. In addition, the heat generated by the heating assembly 25 of the present invention is mainly conducted to the aerosol generating product 200 through an air medium, which has a high thermal efficiency, improves the taste of the aerosol generated by the aerosol generating substrate section 201, and thereby improves the user experience.

[0040] It should be understood that the above embodiments only express several embodiments of the present invention, and the description thereof is relatively specific and detailed, but cannot be understood as a limitation on the scope of the patent. It should be noted that, for a person of ordinary skill in the art, the aforementioned technical features can be freely combined, and various modifications and improvements can be made without departing from the concept of the present disclosure, which all fall within the protection scope of the present disclosure. Therefore, any equivalent transformations and modifications made in accordance with the scope of the claims of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An aerosol generating device, comprising:a housing;wherein an accommodating member for placing an aerosol generating product and a heating assembly are provided in the housing;wherein the accommodating member is not in contact with the heating assembly; andwherein, air heated by the heating assembly flows through the accommodating member to heat the aerosol generating product to generate aerosol.

2. The aerosol generating device of claim 1 wherein the accommodating member and the heating assembly are axially spaced apart.

3. The aerosol generating device of claim 2 wherein the accommodating member is provided with a first end portion and a limiting structure, the first end portion is provided with an opening for inserting the aerosol generating product, the limiting structure corresponds to the first end portion, and the heating assembly is disposed on a side close to the limiting structure.

4. The aerosol generating device of claim 2 wherein the heating assembly comprises a heating element and a support frame configured for mounting the heating element, and the support frame is provided with a second opening facing the accommodating member.

5. The aerosol generating device of claim 4 wherein the accommodating member and the heating assembly are axially spaced apart to form a first air passage;wherein a second air passage for air to pass through is provided in the heating element and the support frame;wherein the second air passage is in communication with the second opening; andwherein the first air passage, the second air passage and the accommodating member are in communication with each other.

6. The aerosol generating device of claim 5 further comprising: a sleeve;wherein the sleeve is sleeved on an outer periphery of the support frame and the accommodating member to form at least a part of a third air passage; andwherein the third air passage is in communication with the first air passage and / or the second air passage.

7. The aerosol generating device of claim 6 wherein the housing is sleeved on an outer periphery of the sleeve to form an air inlet passage;wherein the housing is provided with an air inlet hole for air to enter; andwherein the air inlet hole, the air inlet passage and the third air passage are in communication with each other.

8. The aerosol generating device of claim 4 wherein the heating element has a hollow structure with two ends penetrating therethrough.

9. The aerosol generating device of claim 4 wherein a side wall of the heating element is provided with an air inlet hole.

10. The aerosol generating device of claim 1 wherein the accommodating member and the heating assembly are laterally spaced apart.

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