Atomizer and shell assembly thereof, power supply and shell assembly thereof, and aerosol generating device

Abstract

The utility model provides an atomizer, a shell assembly of the atomizer, a power source, a shell assembly of the power source and an aerosol generating device, and belongs to the field of aerosol generating devices. The shell assembly of the atomizer comprises a first shell, wherein the first shell comprises a first connecting part and a first main body part; a first annular groove is formed in the outer surface of the first main body part, surrounds the first connecting part and is coaxial with the first connecting part; the first body part is provided with an induction air channel, and one end of the induction air channel is located in the first annular groove. When the atomizer is rotationally connected with the power source through the first connecting part, even if the relative rotation angles of the atomizer and the power source are different in each connecting process, the annular cavity formed by the first annular groove and the outer surface of the power source can always communicate with the induction air channel and the air flow channel. A user does not need to pay attention to the relative rotation angle of the atomizer and the power supply when connecting the atomizer and the power supply, the user can conveniently connect the atomizer and the power supply, and the aerosol generating device is more convenient to use.

Description

Technical Field

[0001] This application relates to the field of aerosol generating devices, and in particular to an atomizer and its housing assembly, a power supply and its housing assembly, and an aerosol generating device. Background Technology

[0002] Common aerosol generating devices include an atomizer and a power supply. The atomizer and power supply are detachably connected, allowing users to replace different atomizers as needed.

[0003] Once the atomizer is connected to a power source, its sensing airflow channel is connected to the power source's airflow channel. During inhalation, changes in the air pressure inside the atomizer can affect the airflow in the airflow channel, thereby triggering the airflow sensor in the power source to control the aerosol generation device to operate normally.

[0004] In some aerosol generating devices, the atomizer is rotatably connected to the power source, such as via a threaded connection. When connecting the atomizer to the power source, special attention must be paid to the relative rotation angle between the atomizer and the power source to ensure the inlet of the sensing airway is aligned with the outlet of the airflow channel, which can be inconvenient for the user. Utility Model Content

[0005] This application provides an atomizer and its housing assembly, a power supply and its housing assembly, and an aerosol generating device, which facilitates user connection between the atomizer and the power supply, making the use of the aerosol generating device more convenient. The technical solution is as follows:

[0006] In a first aspect, embodiments of this application provide a housing assembly for an atomizer, the housing assembly including a first outer shell, the first outer shell including a first connecting portion and a first main body portion for accommodating an atomizing assembly;

[0007] The first connecting part is connected to the first main body part and is used for rotatable connection with the power source;

[0008] The outer surface of the first main body has a first annular groove, the first annular groove surrounds the first connecting part and is coaxially arranged with the first connecting part, and the first annular groove is used to form an annular cavity communicating with the airflow channel of the power supply with the outer surface of the power supply.

[0009] The first main body has a sensing air passage, one end of which is located in the first annular groove and the other end is located inside the first main body, for connecting to the suction nozzle.

[0010] In some examples, the outer surface of the first body portion has a first planar region, and the first annular groove is located in the first planar region.

[0011] In some examples, the first body portion further includes at least one of the following:

[0012] The first annular sealing rib is located in the first planar area, arranged around the first connecting part, and located inside the first annular groove;

[0013] The second annular sealing rib is located in the first planar area, arranged around the first connecting part, and located outside the first annular groove.

[0014] In some examples, the first connection portion has threads for connecting the power source.

[0015] In some examples, the difference between the width of the first annular groove and the diameter of the sensing airway does not exceed 1 mm.

[0016] In some examples, the diameter of the first annular groove is 10 mm to 20 mm.

[0017] In some examples, the first body portion includes a first end cap, a second end cap, and a liquid reservoir housing, with the first end cap located at one end of the liquid reservoir housing and the second end cap located at the other end of the liquid reservoir housing; the first annular groove is located on the side of the first end cap away from the liquid reservoir housing, and the second end cap is used to connect a suction nozzle.

[0018] In some examples, the first end cap has a protrusion on the side near the liquid tank housing, and the end of the sensing air passage away from the first annular groove is located at the end of the protrusion.

[0019] In some examples, the housing assembly further includes a support, a portion of which is located within the liquid reservoir housing and another portion is located between the liquid reservoir housing and the second end cap;

[0020] The bracket has an atomizing channel and a main air channel. The inlet of the atomizing channel is close to the first end cap and communicates with the sensing air channel. The outlet of the atomizing channel is close to the second end cap.

[0021] The inlet of the main air passage is located on the outer surface of the portion of the support exposed between the liquid tank housing and the second end cap, and the outlet of the main air passage is connected to the inlet of the atomizing channel.

[0022] Secondly, embodiments of this application also provide an atomizer, the atomizer including an atomizing component and a housing assembly of any of the atomizers described in the first aspect, the atomizing component being located within a first main body portion.

[0023] Thirdly, embodiments of this application also provide a housing assembly for a power supply, the housing assembly including a second outer shell, the second outer shell including a second connecting portion and a second main body portion for accommodating a power supply component;

[0024] The second connecting part is connected to the second main body part and is used for rotatable connection with the atomizer;

[0025] The outer surface of the second main body has a second annular groove, the second annular groove surrounds the second connecting part and is coaxially arranged with the second connecting part, the second annular groove is used to form an annular cavity communicating with the sensing air passage of the atomizer with the outer surface of the atomizer;

[0026] The second main body has an airflow channel, one end of which is located in the second annular groove and the other end is located inside the second main body, for connecting to the airflow sensor.

[0027] In some examples, the outer surface of the second body portion has a second planar region, and the second annular groove is located in the second planar region.

[0028] In some examples, the second body portion further includes at least one of the following:

[0029] The third annular sealing rib is located in the second planar region, arranged around the second connecting part, and located inside the second annular groove;

[0030] The fourth annular sealing rib is located in the second planar region, arranged around the second connecting part, and located outside the second annular groove.

[0031] In some examples, the second connection has threads for connecting the atomizer.

[0032] In some examples, the difference between the width of the second annular groove and the diameter of the airflow channel does not exceed 1 mm.

[0033] In some examples, the diameter of the second annular groove is 10 mm to 20 mm.

[0034] In some examples, the second main body includes a support frame and a cover plate, the cover plate being located on the outer surface of the support frame, and the second annular groove being located on the side of the cover plate away from the support frame.

[0035] In some examples, the second connection is connected to the support frame, and the cover plate has a through hole exposing the second connection.

[0036] Fourthly, embodiments of this application also provide a power supply, the power supply including a power supply component, an airflow sensor, and a housing assembly of any power supply as described in the third aspect, the power supply component and the airflow sensor being located within a second main body, the airflow sensor being in communication with an airflow channel.

[0037] Fifthly, embodiments of this application also provide an aerosol generating device, the aerosol generating device including an atomizer and a power supply for supplying power to the atomizer; the aerosol generating device satisfies at least one of the following:

[0038] The atomizer is the atomizer described in the second aspect;

[0039] The power source is the power source described in the fourth aspect.

[0040] The beneficial effects of the technical solutions provided in this application include at least the following:

[0041] By configuring the first outer shell of the atomizer housing assembly to include a first connecting portion and a first main body portion, and providing a first annular groove and a sensing air passage in the first main body portion, with one end of the sensing air passage located within the first annular groove, when the atomizer is connected to a power source via the first connecting portion, the first annular groove forms an annular cavity with the outer surface of the power source. This annular cavity connects to the airflow channel of the power source, thus allowing the sensing air passage to connect with the airflow channel of the power source through this annular cavity. Since the first annular groove surrounds the first connecting portion, even if the relative rotation angle between the atomizer and the power source differs during each connection, the annular cavity formed by the first annular groove and the outer surface of the power source always maintains communication between the sensing air passage and the airflow channel. Users do not need to consider the relative rotation angle between the atomizer and the power source when connecting the atomizer and the power source, making the connection of the atomizer and the power source more convenient and enhancing the usability of the aerosol generating device. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application;

[0044] Figure 2 This is an enlarged schematic diagram of a connection between a power supply and an atomizer provided in an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the structure of a housing assembly of an atomizer provided in an embodiment of this application;

[0046] Figure 4 This is a partial structural diagram of a first outer shell provided in an embodiment of this application;

[0047] Figure 5This is a schematic diagram of the structure of a first end cap provided in an embodiment of this application;

[0048] Figure 6 This is a partial cross-sectional view of a first main body provided in an embodiment of this application;

[0049] Figure 7 This is a schematic diagram of the internal structure of a housing assembly of an atomizer provided in an embodiment of this application;

[0050] Figure 8 This is a schematic diagram of the internal structure of a housing assembly of an atomizer provided in an embodiment of this application;

[0051] Figure 9 This is a schematic diagram of the internal structure of an atomizer provided in an embodiment of this application;

[0052] Figure 10 This is a schematic diagram of the internal structure of an atomizer provided in an embodiment of this application;

[0053] Figure 11 This is a schematic diagram of the structure of a power supply housing assembly provided in an embodiment of this application;

[0054] Figure 12 This is an exploded structural diagram of a housing assembly provided in an embodiment of this application;

[0055] Figure 13 This is a schematic diagram of the structure of a cover plate provided in an embodiment of this application;

[0056] Figure 14 This is a cross-sectional view of a cover plate provided in an embodiment of this application;

[0057] Figure 15 This is a schematic diagram of the internal structure of a power supply provided in an embodiment of this application;

[0058] Figure 16 This is a schematic diagram of an aerosol generating device provided in an embodiment of this application.

[0059] Icon labels:

[0060] 100 - Power supply; 1001 - Recess; 1002 - Annular slot; 1a - Airflow channel;

[0061] 200-Atomizer; 2001-Protrusion; 2002-Annular rib; 2a-Sensing air passage; 20-First outer shell; 21-First connecting part; 22-First main body part; 20a-First annular groove; 20b-First planar area; 221-First end cap; 2211-First annular sealing rib; 2212-Second annular sealing rib; 2213-Protrusion; 222-Second end cap; 223-Liquid tank shell; 224-Bracket; 2241-First bracket; 2242-Second bracket; 224a-Atomization channel; 224b-Main air passage; 225-Adjusting ring; 225a-Flow rate adjustment hole;

[0062] 300-Nose; 30-Atomizing assembly; 31-Outer cover; 32-Tubular support; 33-Liquid guide; 34-First electrode; 35-Second electrode; 36-First insulating pad; 37-Transition electrode; 38-Second insulating pad;

[0063] 40-Second outer shell; 40a-Second annular groove; 40b-Second planar area; 41-Second connecting part; 42-Second main body part; 421-Cover plate; 4211-Third annular sealing rib; 4212-Fourth annular sealing rib; 421a-Through hole; 422-Support frame; 43-Dust cover; 44-Battery cover; 45-Keycap;

[0064] 50 - Airflow sensor; 51 - Sensor cover;

[0065] 60-Power supply component; 61-Battery; 62-Circuit board; 63-Third electrode; 64-Fourth electrode; 65-Display panel. Detailed Implementation

[0066] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0067] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0068] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0069] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0070] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0071] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means two or more.

[0072] Figure 1 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application, as shown below. Figure 1 As shown, the aerosol generating device includes a power supply 100 and an atomizer 200. The power supply 100 has a recess 1001, and the atomizer 200 has a protrusion 2001, which is inserted into the recess 1001. The power supply 100 is used to supply power to the atomizer 200.

[0073] In some small aerosol generating devices, the power supply 100 and atomizer 200 are relatively small in size and weight, and are usually connected magnetically for ease of use. However, in some large aerosol generating devices, the power supply 100 and atomizer 200 are larger in size and weight, making a stable magnetic connection difficult. Therefore, a rotating connection is typically used. For example, the inner wall of the recess 1001 has an internal thread, and the outer wall of the protrusion 2001 has an external thread, connecting the power supply 100 and atomizer 200 together via a threaded connection.

[0074] For example, Figure 2This is an enlarged schematic diagram of the connection between the power supply and the atomizer provided in an embodiment of this application, as shown below. Figure 2 As shown, an annular rib 2002 is formed on the outer wall of the protrusion 2001, and an annular groove 1002 is formed on the inner wall of the recess 1001. The protrusion 2001 is inserted into the recess 1001, and the annular rib 2002 is inserted into the annular groove 1002, so that the power supply 100 and the atomizer 200 can rotate relative to each other, but remain connected.

[0075] like Figure 1 As shown, the atomizer 200 also has a sensing airway 2a, the inlet of which is located at the end of the atomizer 200. During inhalation through the mouthpiece 300, airflow enters through the inlet of the sensing airway 2a. The power supply 100 has an airflow channel 1a, the outlet of which is located at the end of the power supply 100. The atomizer 200 is connected to the power supply 100, and the inlet of the sensing airway 2a must be aligned with the outlet of the airflow channel 1a. During inhalation, the airflow in the airflow channel 1a flows to the sensing airway 2a, triggering the airflow sensor inside the power supply 100, thus activating the aerosol generating device.

[0076] During the connection process between the atomizer 200 and the power supply 100, users often need to pay special attention to the relative rotation angle between the two to ensure that the outlet of the sensing air passage 2a of the atomizer 200 is aligned with the outlet of the airflow passage 1a of the power supply 100. This makes the connection process between the atomizer 200 and the power supply 100 relatively complicated, affecting the ease of use of the aerosol generating device.

[0077] Figure 3 This is a schematic diagram of the structure of a housing assembly of an atomizer provided in an embodiment of this application, as shown below. Figure 3 As shown, the housing assembly includes a first outer shell 20, which includes a first connecting portion 21 and a first main body portion 22. The first main body portion 22 is used to accommodate the atomizing component of the atomizer 200.

[0078] The first connecting part 21 is connected to the first main body part 22, and the first connecting part 21 is used to rotatably connect with the power supply 100.

[0079] Figure 4 This is a partial structural diagram of a first outer shell provided in an embodiment of this application, as shown below. Figure 4 As shown, the outer surface of the first main body 22 has a first annular groove 20a, which surrounds the first connecting portion 21. The first annular groove 20a is coaxially arranged with the first connecting portion 21. The first annular groove 20a is used to form an annular cavity with the outer surface of the power supply 100, communicating with the airflow channel 1a of the power supply 100.

[0080] The first main body 22 has a sensing airway 2a, one end of which is located in the first annular groove 20a, and the other end of which is located inside the first main body 22. The other end of the sensing airway 2a is used to connect to the nozzle 300.

[0081] In the housing assembly of the atomizer 200, the first outer shell 20 is configured to include a first connecting portion 21 and a first main body portion 22. The first main body portion 22 has a first annular groove 20a and a sensing airway 2a. One end of the sensing airway 2a is located within the first annular groove 20a. When the atomizer 200 is connected to the power supply 100 via the first connecting portion 21, the first annular groove 20a forms an annular cavity with the outer surface of the power supply 100. This annular cavity connects to the airflow channel 1a of the power supply 100, thus allowing the sensing airway 2a to connect with the airflow channel 1a of the power supply 100 through this annular cavity. The first annular groove 20a surrounds the first connecting portion 21. Even if the relative rotation angle between the atomizer 200 and the power supply 100 differs by any angle between 0° and 360° during each connection process, the annular cavity formed by the first annular groove 20a and the outer surface of the power supply 100 will always connect the sensing airway 2a and the airflow channel 1a. Users do not need to pay attention to the relative rotation angle between the atomizer 200 and the power supply 100 when connecting the atomizer 200 and the power supply 100, which makes it easier for users to connect the atomizer 200 and the power supply 100 and makes the use of the aerosol generating device more convenient.

[0082] Reference Figure 3 As shown, in some examples, the first main body 22 may include a first end cap 221, a second end cap 222, and a liquid reservoir housing 223. The first end cap 221 is located at one end of the liquid reservoir housing 223, and the second end cap 222 is located at the other end of the liquid reservoir housing 223. The first end cap 221, the liquid reservoir housing 223, and the second end cap 222 are detachably connected to facilitate the assembly of the atomizer 200.

[0083] like Figure 3 As shown, the second end cap 222 can be used to connect the nozzle 300.

[0084] In some examples, the housing assembly of the atomizer 200 may also include a mouthpiece 300, which may be connected to the first housing 20. For example, the mouthpiece 300 may be connected to a second end cap 222.

[0085] As an example, the nozzle 300 can be detachably connected to the second end cap 222 to facilitate the replacement of the nozzle 300.

[0086] In other examples, the nozzle 300 may also be fixedly connected to the second end cap 222. For example, the nozzle 300 and the second end cap 222 may be integrally formed.

[0087] like Figure 3 As shown, the first connecting part 21 can be connected to the first end cover 221, and the first annular groove 20a can be located on the side of the first end cover 221 away from the liquid tank housing 223.

[0088] The first connecting portion 21 and the first end cap 221 can be fixedly connected. As an example, the first connecting portion 21 and the first end cap 221 can be an integrally formed structure. In some other possible implementations, the first connecting portion 21 and the first end cap 221 can also be two independent components.

[0089] In some examples, the first connection 21 has threads for connecting the power supply 100.

[0090] Using a threaded connection to connect the power supply 100 can make the connection between the atomizer 200 and the power supply 100 more secure.

[0091] The first connecting portion 21 can be cylindrical; for example, the first connecting portion 21 can be a cylindrical tubular structure. The thread can be located on the outer or inner wall of the first connecting portion 21.

[0092] As an example, such as Figure 4 As shown, the first connecting portion 21 protrudes from the outer surface of the first end cap 221, that is, the first connecting portion 21 is located on the side of the first end cap 221 away from the liquid tank housing 223. The first connecting portion 21 has external threads. When connected to the power supply 100, the first connecting portion 21 can be inserted into the power supply 100 and connected to the power supply 100 by the threads.

[0093] Figure 5 This is a schematic diagram of the structure of a first end cap provided in an embodiment of this application, as shown below. Figure 5 As shown, in some other possible implementations, the first connecting portion 21 is located on the side of the first end cap 221 near the liquid tank housing 223, and the first connecting portion 21 has internal threads. When connected to the power supply 100, the first connecting portion 21 can be fitted over a part of the power supply 100 and connected to the power supply 100 by threads.

[0094] like Figure 4 As shown, the outer surface of the first main body 22 has a first planar region 20b, and the first annular groove 20a is located in the first planar region 20b.

[0095] In this example, the first planar region 20b includes the surface of the first end cap 221 on the side away from the liquid reservoir housing 223. The first planar region 20b is annular and surrounds the first connecting portion 21. The first annular groove 20a may be coaxial with the first planar region 20b.

[0096] The surface of the first end cap 221 away from the liquid tank housing 223 is made into a plane, so that when the atomizer 200 is connected to the power supply 100, the first end cap 221 can better fit the outer surface of the power supply 100. The first annular groove 20a and the outer surface of the power supply 100 form an annular cavity with better airtightness, so that the airflow sensor in the power supply 100 can be triggered more accurately during the use of the aerosol generating device.

[0097] like Figure 4 As shown, the first annular groove 20a is circular. The diameter of the first annular groove 20a can be 10mm to 20mm.

[0098] The diameter of the first annular groove 20a can refer to one of the following: the diameter of the inner wall of the first annular groove 20a, the diameter of the outer wall of the first annular groove 20a, or the average of the diameters of the inner and outer walls of the first annular groove 20a. The inner wall of the first annular groove 20a is the side wall of the first annular groove 20a closest to the first connecting portion 21, and the outer wall is the side wall furthest from the first connecting portion 21.

[0099] The larger the diameter of the first annular groove 20a, the longer its inner and outer edges. When the atomizer 200 is connected to the power supply 100, the higher the risk of leakage in the formed annular cavity. Setting the diameter of the first annular groove 20a to 10mm-20mm reduces the risk of leakage in the annular cavity and provides sufficient space inside the first annular groove 20a to accommodate the first connecting part 21, thus avoiding any limitation on the size of the first connecting part 21 that could affect its structural strength.

[0100] In some examples, the diameter of the first annular groove 20a can be 13 mm to 17 mm. For example, the diameter of the first annular groove 20a can be 15 mm.

[0101] In some examples, the difference between the width of the first annular groove 20a and the diameter of the sensing airway 2a does not exceed 1 mm.

[0102] The circumference width of the first annular groove 20a refers to the difference between the radius of the outer sidewall and the radius of the inner sidewall of the first annular groove 20a. The diameter of the sensing airway 2a can refer to the diameter of the end of the sensing airway 2a located within the first annular groove 20a, that is, the diameter of the inlet of the sensing airway 2a.

[0103] Setting the width of the first annular groove 20a to be approximately the same as the diameter of the sensing airway 2a, within 1 mm, can prevent the volume of the annular cavity formed when the atomizer 200 is connected to the power supply 100 from being too large. With a fixed diameter, a larger annular groove 20a will result in a larger annular cavity volume when the atomizer 200 is connected to the power supply 100, which may affect the sensitivity of the airflow sensor.

[0104] For example, the width of the first annular groove 20a can be the same as the diameter of the sensing airway 2a.

[0105] Figure 6 This is a partial cross-sectional view of a first main body provided in an embodiment of this application, showing a cross-section of the first end cap 221. For example... Figure 6 As shown, the first main body 22 may also include a first annular sealing rib 2211 and a second annular sealing rib 2212.

[0106] The first annular sealing rib 2211 is located in the first planar region 20b and is arranged around the first connecting portion 21. The first annular sealing rib 2211 is located inside the first annular groove 20a. The second annular sealing rib 2212 is located in the first planar region 20b and is arranged around the first connecting portion 21. The second annular sealing rib 2212 is located outside the first annular groove 20a.

[0107] When connecting the atomizer 200 and the power supply 100, the first annular sealing rib 2211 and the second annular sealing rib 2212 can respectively squeeze the outer surface of the power supply 100, thereby improving the airtightness of the inner and outer sides of the first annular groove 20a, so that the first annular groove 20a and the outer surface of the power supply 100 form an annular cavity with better airtightness.

[0108] In some other possible implementations, the surface of the first end cap 221 may only be provided with the first annular sealing rib 2211 or only with the second annular sealing rib 2212 to reduce process costs.

[0109] like Figure 6 As shown, the first end cap 221 has a protrusion 2213 on the side near the liquid tank housing 223, and the end of the sensing air passage 2a away from the first annular groove 20a is located at the end of the protrusion 2213.

[0110] The sensing airway 2a penetrates the first end cap 221. The inlet of the sensing airway 2a is located on the outer side of the first end cap 221, i.e., the side away from the liquid tank housing 223, and the outlet of the sensing airway 2a is located on the inner side of the first end cap 221, i.e., the side closer to the liquid tank housing 223. During use, the aerosol matrix or condensate formed inside the atomizer 200 may adhere to the inner side of the first end cap 221. By providing a protrusion 2213 on the inner side of the first end cap 221 and arranging the outlet of the sensing airway 2a at the end of the protrusion 2213, the risk of the aerosol matrix or condensate clogging the sensing airway 2a, or even leaking to the outside of the atomizer 200 through the sensing airway 2a, can be reduced.

[0111] For example, the height of the protrusion 2213 can be 1mm to 5mm, such as 2mm or 3mm.

[0112] Refer again Figure 3 As shown, the housing assembly of the atomizer 200 may also include a bracket 224, a portion of which is located in the liquid tank housing 223, and another portion of which is located between the liquid tank housing 223 and the second end cap 222.

[0113] Figure 7 This is a schematic diagram of the internal structure of a housing assembly of an atomizer provided in an embodiment of this application. Figure 7 The diagram schematically illustrates the approximate direction of airflow within the housing assembly. (For example...) Figure 7 As shown, the bracket 224 has an atomizing channel 224a. The inlet of the atomizing channel 224a is close to the first end cap 221, meaning the distance from the inlet of the atomizing channel 224a to the first end cap 221 is less than the distance from the outlet of the atomizing channel 224a to the first end cap 221. The inlet of the atomizing channel 224a communicates with the sensing airway 2a. The outlet of the atomizing channel 224a is close to the second end cap 222, meaning the distance from the outlet of the atomizing channel 224a to the second end cap 222 is less than the distance from the inlet of the atomizing channel 224a to the second end cap 222.

[0114] Figure 8 This is a schematic diagram of the internal structure of a housing assembly of an atomizer provided in an embodiment of this application. Figure 8 The diagram schematically illustrates the approximate direction of airflow inside the housing assembly. Figure 8 The cross section shown is Figure 7 The cross-sections shown are perpendicular to each other. For example... Figure 8 As shown, the support 224 also has a main air passage 224b. The inlet of the main air passage 224b is located on the outer surface of the portion of the support 224 exposed between the liquid tank housing 223 and the second end cap 222, and the outlet of the main air passage 224b is connected to the inlet of the atomizing channel 224a.

[0115] The main airflow channel 224b is the primary channel through which outside air enters the atomizer 200 during inhalation. The atomization channel 224a houses the atomizing component 30 and is also where aerosol is formed. During inhalation, outside air enters the main airflow channel 224b and then flows into the inlet of the atomization channel 224a. After mixing with the aerosol generated by the atomizing component 30 in the atomization channel 224a, the air is discharged from the outlet of the atomization channel 224a and finally exits the atomizer 200 through the mouthpiece 300.

[0116] In this example, a portion of the support 224 is exposed between the liquid tank housing 223 and the second end cap 222. By arranging the inlet of the main air passage 224b on the outer surface of the exposed portion of the support 224, the inlet of the main air passage 224b is closer to the second end cap 222. The airflow entering the atomizer 200 from the inlet of the main air passage 224b will undergo a reversal, lengthening the airflow path. The atomizer 200 generates heat during operation; for example, the atomizing component 30 generates heat during operation. The longer airflow path allows for more thorough heating of the airflow, enabling the airflow temperature to rise to a suitable level.

[0117] The support 224 can have multiple main air channels 224b, which can be distributed around the atomizing channel 224a, for example, arranged at equal angular intervals around the atomizing channel 224a. As an example, the support 224 can have two main air channels 224b, which are arranged symmetrically around the center. Arranging multiple main air channels 224b helps to increase the air intake of the atomizer 200. Arranging multiple main air channels 224b around the atomizing channel 224a makes the airflow entering the atomizing channel 224a more uniform and symmetrical, which helps to improve the atomization effect.

[0118] In some examples, the support 224 may include a detachably connected first support 2241 and second support 2242, both of which are cylindrical. The first support 2241 forms an atomizing channel 224a and is located within the liquid reservoir housing 223. The end of the first support 2241 near the first end cap 221 is connected to the liquid reservoir housing 223. The second support 2242 is fitted over the end of the first support 2241 near the second end cap 222. A portion of the second support 2242 protrudes between the liquid reservoir housing 223 and the second end cap 222 and is connected to both the liquid reservoir housing 223 and the second end cap 222. The second support 2242 and the first support 2241 together form a main air passage 224b, the inlet of which is located in the exposed portion of the second support 2242.

[0119] The structure of bracket 224 is relatively complex. By setting bracket 224 as a detachable first bracket 2241 and second bracket 2242, it can be manufactured separately and then assembled, reducing the processing difficulty.

[0120] The portion of the support 224 located inside the liquid tank housing 223 forms a liquid storage chamber with the liquid tank housing 223 for storing the aerosol matrix. The sidewall of the first support 2241 may also have a perforated structure, such as holes, openings, or gaps. The perforated structure connects the liquid storage chamber and the atomization channel 224a, allowing the aerosol matrix in the liquid storage chamber to enter the atomization channel 224a and moisten the atomization component 30.

[0121] like Figure 8 As shown, the housing assembly of the atomizer 200 may further include an air regulating ring 225. The air regulating ring 225 can be fitted onto the portion of the second support 2242 exposed between the liquid tank housing 223 and the second end cap 222, and can rotate relative to the second support 2242. The air regulating ring 225 may have a flow regulating hole 225a. By rotating the air regulating ring 225, the area of ​​the flow regulating hole 225a facing the inlet of the main airway 224b is changed, thereby changing the air intake of the main airway 224b during inhalation. When not in use, the flow regulating hole 225a can be completely offset from the inlet of the main airway 224b, and the air regulating ring 225 can be used to block the inlet of the main airway 224b to prevent foreign objects from entering the main airway 224b.

[0122] Figure 9 and Figure 10 This is a schematic diagram of the internal structure of an atomizer provided in an embodiment of this application. Figure 9 and Figure 10 The cross-sections shown are perpendicular to each other. For example... Figure 9 and Figure 10 As shown, the atomizer 200 includes an atomizing component 30 and, as shown, ...izer 200. Figures 3-8 In any of the housing components shown, the atomizing component 30 is located within the first main body 22.

[0123] When the atomizer 200 is connected to the power supply 100, even if the relative rotation angle between the atomizer 200 and the power supply 100 is different each time it is connected, the first annular groove 20a is aligned with the outlet of the airflow channel 1a of the power supply 100, and the annular cavity formed by the first annular groove 20a and the outer surface of the power supply 100 can always connect the sensing airway 2a and the airflow channel 1a. Users do not need to pay attention to the relative rotation angle between the atomizer 200 and the power supply 100, making it convenient for users to connect the atomizer 200 and the power supply 100, and making the use of the aerosol generating device more convenient.

[0124] like Figure 10As shown, the atomizing assembly 30 is located in the atomizing channel 224a. The atomizing assembly 30 may include an outer cover 31, a tubular support 32, a liquid guide 33, and a heating element. The outer cover 31 is fitted over the tubular support 32. Both the outer cover 31 and the sidewalls of the tubular support 32 have perforated structures, such as holes, openings, and slits, to allow the aerosol matrix to enter the inner side of the tubular support 32. The tubular support 32 is installed in the atomizing channel 224a. The liquid guide 33 is located in the tubular support 32 and is used to absorb the aerosol matrix in the storage tank. The heating element may be located inside the liquid guide 33 and is used to heat the aerosol matrix, thereby forming an aerosol.

[0125] The material and structure of the heating element are not limited, as long as it can generate heat. For example, the heating element may include at least one of heating mesh, heating film, heating wire, and heating plate.

[0126] The heating element can also be connected to at least two pins to facilitate power supply to the heating element.

[0127] The atomizer 200 may further include a first electrode 34, a second electrode 35, and a first insulating pad 36, both of which may be located in the first connecting portion 21. The first insulating pad 36 is spaced between the first electrode 34 and the second electrode 35. The first electrode 34 and the second electrode 35 are respectively connected to the heating element.

[0128] As an example, the first electrode 34 can be a positive electrode, and the second electrode 35 can be a negative electrode.

[0129] After the atomizer 200 is connected to the power supply 100, the first electrode 34 and the second electrode 35 are electrically connected to the power supply 100 to supply power to the atomizing assembly 30.

[0130] For example, the first electrode 34 may be cylindrical and arranged coaxially with the first connecting portion 21. The first insulating pad 36 may be fitted over the first electrode 34.

[0131] The second electrode 35 may be located on the inner wall of the first connection portion 21. Exemplarily, the second electrode 35 may be a conductive layer formed on the inner wall of the first connection portion 21, such as a metal plating layer.

[0132] In some possible implementations, the first connection portion 21 can be a conductive element, for example, the first connection portion 21 can be a metal element, and the second electrode 35 can have the same structure as the first connection portion 21, that is, the first connection portion 21 is reused as the second electrode 35.

[0133] like Figure 10As shown, the atomizer 200 may further include a transition electrode 37 and a second insulating pad 38, both of which are cylindrical. The second insulating pad 38 can be fitted over the transition electrode 37 and is inserted into the end of the tubular support 32, separating the tubular support 32 and the transition electrode 37. The first electrode 34 can be located on the side of the transition electrode 37 away from the tubular support 32 and is in contact with the transition electrode 37. The transition electrode 37 is used to connect to a heating element. Exemplarily, at least one pin of the heating element can be connected to the transition electrode 37, and at least another pin of the heating element can be connected to the second electrode 35.

[0134] The tubular support 32 can be made of metal, which can improve the structural strength of the tubular support 32 and also facilitate the heat conduction of the atomizing component 30.

[0135] Figure 11 This is a schematic diagram of the structure of a power supply housing assembly provided in an embodiment of this application, as shown below. Figure 11 As shown, the housing assembly of the power supply includes a second housing 40, the second housing 40 includes a second connecting portion 41 and a second main body portion 42, the second main body portion 42 being used to accommodate the power supply assembly 60.

[0136] The second connecting part 41 is connected to the second main body part 42, and the second connecting part 41 is used to rotatably connect with the atomizer 200.

[0137] The outer surface of the second main body 42 has a second annular groove 40a, which surrounds the second connecting part 41. The second annular groove 40a is arranged coaxially with the second connecting part 41. The second annular groove 40a is used to form an annular cavity with the outer surface of the atomizer 200, which communicates with the sensing air passage 2a of the atomizer 200.

[0138] The second main body 42 has an airflow channel 1a, one end of which is located in the second annular groove 40a, and the other end of which is located inside the second main body 42. The other end of the airflow channel 1a is used to connect to the airflow sensor 50.

[0139] In the housing assembly of the power supply 100, the second outer shell 40 is configured to include a second connecting portion 41 and a second main body portion 42. The second main body portion 42 is provided with a second annular groove 40a and an airflow channel 1a. One end of the airflow channel 1a is located within the second annular groove 40a. When the power supply 100 is connected to the atomizer 200 via the second connecting portion 41, the second annular groove 40a can form an annular cavity with the outer surface of the atomizer 200. This annular cavity connects to the sensing air passage 2a of the atomizer 200, thus allowing the airflow channel 1a to connect with the sensing air passage 2a of the atomizer 200 through this annular cavity. The second annular groove 40a surrounds the second connecting portion 41. When rotatably connected to the atomizer 200 via the second connecting portion 41, even if the relative rotation angle between the atomizer 200 and the power supply 100 differs by any angle between 0° and 360° during each connection process, the annular cavity formed by the second annular groove 40a and the outer surface of the atomizer 200 will always connect the airflow channel 1a and the sensing air passage 2a. Users do not need to pay attention to the relative rotation angle between the atomizer 200 and the power supply 100 when connecting the atomizer 200 and the power supply 100, which makes it easier for users to connect the atomizer 200 and the power supply 100 and makes the use of the aerosol generating device more convenient.

[0140] Figure 12 This is an exploded structural diagram of a housing assembly provided in an embodiment of this application, as shown below. Figure 12 As shown, in some examples, the second body portion 42 includes a support frame 422 and a cover plate 421. The cover plate 421 is located on the outer surface of the support frame 422. The second annular groove 40a is located on the side of the cover plate 421 away from the support frame 422.

[0141] The support frame 422 houses the power supply component 60, providing a mounting base for it. A cover plate 421 is disposed on the outer surface of the support frame 422, providing shielding to prevent external dust and liquids from entering. Different power supplies 100 may have different external structures, but the support frame 422 can adopt the same structure, thus requiring only different cover plates 421, reducing production costs. When connecting the power supply 100 to the atomizer 200, the cover plate 421 contacts the atomizer 200. Using a separate cover plate 421 also facilitates its processing, allowing for a better fit between the cover plate 421 and the atomizer 200.

[0142] like Figure 12 As shown, the second housing 40 may also include a dust cover 43 and a battery cover 44, which can be mounted on the surface of the support frame 422.

[0143] The housing assembly of the power supply 100 can also enclose keycaps 45, which can be exposed outside the second housing 40 for user convenience.

[0144] In some examples, the second connection 41 has threads for connecting the atomizer 200.

[0145] Using a threaded connection to connect the atomizer 200 makes the connection between the atomizer 200 and the power supply 100 more secure.

[0146] The second connecting portion 41 can be cylindrical; for example, the second connecting portion 41 can be a cylindrical tubular structure. The thread can be located on the inner or outer side wall of the second connecting portion 41.

[0147] As an example, such as Figure 12 As shown, the second connecting part 41 is connected to the support frame 422, and the cover plate 421 has a through hole 421a that exposes the second connecting part 41.

[0148] When the power supply 100 is connected to the atomizer 200, a portion of the atomizer 200 can be connected to the second connecting part 41 through the through hole 421a of the cover plate 421. The second connecting part 41 is connected to the support frame 422, and the second connecting part 41 does not need to be disassembled when the cover plate 421 is replaced.

[0149] For example, the second connecting portion 41 is located on the side of the cover plate 421 near the support frame 422. The second connecting portion 41 has internal threads. When the atomizer 200 is connected to the power supply 100, a portion of the atomizer 200 can be inserted into the second connecting portion 41 and connected to the second connecting portion 41 by threads.

[0150] Figure 13 This is a schematic diagram of the structure of a cover plate provided in an embodiment of this application, such as... Figure 13 As shown, the outer surface of the second main body 42 has a second planar region 40b, and the second annular groove 40a is located in the second planar region 40b.

[0151] In this example, the second planar region 40b includes the surface of the cover plate 421 on the side away from the support frame 422.

[0152] The surface of the cover plate 421 away from the support frame 422 is made flat so that when the atomizer 200 is connected to the power supply 100, the cover plate 421 can better fit the outer surface of the atomizer 200. The second annular groove 40a and the outer surface of the atomizer 200 form an annular cavity with better airtightness, so that the airflow sensor in the power supply 100 can be triggered more accurately during the use of the aerosol generating device.

[0153] like Figure 13 As shown, the second annular groove 40a is circular, and the diameter of the second annular groove 40a can be 10mm to 20mm.

[0154] The diameter of the second annular groove 40a can refer to one of the following: the diameter of the inner wall of the second annular groove 40a, the diameter of the outer wall of the second annular groove 40a, or the average of the diameters of the inner and outer walls of the second annular groove 40a. The inner wall of the second annular groove 40a is the side wall of the second annular groove 40a near the second connecting portion 41, and the outer wall is the side wall away from the second connecting portion 41.

[0155] The larger the diameter of the second annular groove 40a, the longer its inner and outer edges. When the atomizer 200 is connected to the power supply 100, the higher the risk of leakage in the formed annular cavity. Setting the diameter of the second annular groove 40a to 10mm-20mm reduces the risk of leakage in the annular cavity and provides sufficient space inside the second annular groove 40a to accommodate the second connecting part 41, thus avoiding any limitation on the size of the second connecting part 41 that could affect its structural strength.

[0156] In some examples, the diameter of the second annular groove 40a can be 13 mm to 17 mm. For example, the diameter of the second annular groove 40a can be 15 mm.

[0157] In some examples, the difference between the annular width of the second annular groove 40a and the diameter of the airflow channel 1a does not exceed 1 mm.

[0158] The circumference width of the second annular groove 40a refers to the difference between the radius of the outer sidewall and the radius of the inner sidewall of the second annular groove 40a. The diameter of the airflow channel 1a can refer to the diameter of the end of the airflow channel 1a located within the second annular groove 40a, that is, the diameter of the outlet of the airflow channel 1a.

[0159] Setting the width of the second annular groove 40a to be approximately the same as the diameter of the airflow channel 1a, within 1 mm, can prevent the volume of the annular cavity formed when the atomizer 200 is connected to the power supply 100 from being too large. With a fixed diameter, a larger annular groove 40a will result in a larger annular cavity volume when the atomizer 200 is connected to the power supply 100, which may affect the sensitivity of the airflow sensor.

[0160] For example, the width of the second annular groove 40a can be the same as the diameter of the airflow channel 1a.

[0161] Figure 14 This is a cross-sectional view of a cover plate provided in an embodiment of this application, such as... Figure 14 As shown, the second main body 42 may also include a third annular sealing rib 4211 and a fourth annular sealing rib 4212.

[0162] The third annular sealing rib 4211 is located in the second planar region 40b and is arranged around the second connecting portion 41. The third annular sealing rib 4211 is located inside the second annular groove 40a. The fourth annular sealing rib 4212 is located in the second planar region 40b and is arranged around the second connecting portion 41. The fourth annular sealing rib 4212 is located outside the second annular groove 40a.

[0163] When connecting the atomizer 200 and the power supply 100, the third annular sealing rib 4211 and the fourth annular sealing rib 4212 can respectively squeeze the outer surface of the power supply 100, thereby improving the airtightness of the inner and outer sides of the second annular groove 40a, so that the second annular groove 40a and the outer surface of the power supply 100 form an annular cavity with better airtightness.

[0164] In some other possible implementations, the surface of the cover plate 421 may be provided with only the third annular sealing rib 4211 or only the fourth annular sealing rib 4212 to reduce process costs.

[0165] Figure 15 This is a schematic diagram of the internal structure of a power supply provided in an embodiment of this application, such as... Figure 15 As shown, the power supply includes a power supply component 60, an airflow sensor 50, and as shown in the figure. Figures 11-14 The power supply housing assembly shown has the power supply assembly 60 and the airflow sensor 50 located inside the second main body 42, and the airflow sensor 50 is connected to the airflow channel 1a.

[0166] When the atomizer 200 is connected to the power supply 100, even if the relative rotation angle between the atomizer 200 and the power supply 100 is different each time it is connected (ranging from 0° to 360°), the annular cavity formed by the second annular groove 40a and the outer surface of the atomizer 200 will always be able to connect the airflow channel 1a and the sensing airway 2a. Users do not need to pay attention to the relative rotation angle between the atomizer 200 and the power supply 100 when connecting them, making it more convenient for users to connect the atomizer 200 and the power supply 100 and making the use of the aerosol generating device more convenient.

[0167] like Figure 15 As shown, the power supply assembly 60 may include a battery 61, a circuit board 62, a third electrode 63, and a fourth electrode 64. The battery 61 and circuit board 62 may be mounted in the support frame 422. The airflow sensor 50, the third electrode 63, and the fourth electrode 64 may be located on the side of the battery 61 near the cover plate 421. The airflow sensor 50, the third electrode 63, and the fourth electrode 64 may be connected to the circuit board 62. For example, the airflow sensor 50 may be connected to the circuit board 62 via a wire.

[0168] For example, the third electrode 63 may be cylindrical and arranged coaxially with the second connecting portion 41.

[0169] The fourth electrode 64 may be located on the inner wall of the second connection portion 41. Exemplarily, the fourth electrode 64 may be a conductive layer formed on the inner wall of the second connection portion 41, such as a metal plating layer.

[0170] In some possible implementations, the second connection portion 41 can be a conductive element, for example, the second connection portion 41 can be a metal element, and the fourth electrode 64 can have the same structure as the second connection portion 41, that is, the second connection portion 41 is reused as the fourth electrode 64.

[0171] The airflow sensor 50 can be arranged facing the inlet of the airflow channel 1a. Exemplarily, the power supply 100 may also include a sensor cover 51, which is fitted over the airflow sensor 50. The sensor cover 51 has an air guide channel, one end of which communicates with the inlet of the airflow channel 1a, and the other end of which faces the airflow sensor 50.

[0172] like Figure 15 As shown, the power supply 100 may also include a display panel 65, which is located on the side of the circuit board 62 away from the support frame 422, and is electrically connected to the circuit board 62.

[0173] The display panel 65 is arranged on one side of the circuit board 62, so that the display panel 65 and the circuit board 62 are arranged in a parallel or nearly parallel manner, which saves space and makes the structure of the power supply 100 more compact.

[0174] Figure 16 This is a schematic diagram of the structure of an aerosol generating device provided in an embodiment of this application, as shown below. Figure 16 As shown, the aerosol generating device includes an atomizer 200 and a power supply 100 for supplying power to the atomizer 200.

[0175] The atomizer 200 can be used Figure 9 or Figure 10 The atomizer shown; or, power supply 100 is... Figure 15 The power supply shown.

[0176] In some examples, atomizer 200 is Figure 9 or Figure 10 The atomizer shown is equipped with a power supply 100. Figure 15 The power supply shown. The diameter of the first annular groove 20a can be the same as the diameter of the second annular groove 40a, and the annular width of the first annular groove 20a can also be the same as the annular width of the second annular groove 40a, so that after the atomizer 200 is connected to the power supply 100, the first annular groove 20a and the second annular groove 40a together form an annular cavity, through which the airflow channel 1a is connected to the sensing airway 2a.

[0177] Figure 16 The structures of the atomizer 200 and power supply 100 in the aerosol generating device shown are merely examples. In other possible implementations, the structures of the atomizer 200 and power supply 100 in the aerosol generating device may differ from those shown.

[0178] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A housing assembly for an atomizer, characterized in that, It includes a first housing (20), which includes a first connecting portion (21) and a first main body portion (22) for accommodating an atomizing assembly (30); The first connecting part (21) is connected to the first main body part (22) and is used for rotatable connection with the power supply (100); The outer surface of the first main body (22) has a first annular groove (20a), the first annular groove (20a) surrounds the first connecting part (21) and is coaxially arranged with the first connecting part (21), the first annular groove (20a) is used to form an annular cavity with the outer surface of the power supply (100) that communicates with the airflow channel (1a) of the power supply (100); The first main body (22) has a sensing air passage (2a), one end of which is located in the first annular groove (20a) and the other end is located inside the first main body (22) for connecting to the nozzle (300).

2. The housing assembly according to claim 1, characterized in that, The outer surface of the first main body (22) has a first planar region (20b), and the first annular groove (20a) is located in the first planar region (20b).

3. The housing assembly according to claim 2, characterized in that, The first main body (22) further includes at least one of the following: The first annular sealing rib (2211) is located in the first planar region (20b), arranged around the first connecting part (21), and located inside the first annular groove (20a); The second annular sealing rib (2212) is located in the first planar region (20b), arranged around the first connecting part (21), and located outside the first annular groove (20a).

4. The housing assembly according to claim 1, characterized in that, The first connecting part (21) has threads for connecting the power source (100).

5. The housing assembly according to any one of claims 1 to 4, characterized in that, The difference between the width of the first annular groove (20a) and the diameter of the sensing airway (2a) does not exceed 1 mm.

6. The housing assembly according to any one of claims 1 to 4, characterized in that, The diameter of the first annular groove (20a) is 10mm to 20mm.

7. The housing assembly according to any one of claims 1 to 4, characterized in that, The first main body (22) includes a first end cap (221), a second end cap (222), and a liquid tank housing (223). The first end cap (221) is located at one end of the liquid tank housing (223), and the second end cap (222) is located at the other end of the liquid tank housing (223). The first annular groove (20a) is located on the side of the first end cap (221) away from the liquid tank housing (223), and the second end cap (222) is used to connect the suction nozzle (300).

8. The housing assembly according to claim 7, characterized in that, The first end cap (221) has a protrusion (2213) on the side near the liquid tank housing (223), and the end of the sensing air passage (2a) away from the first annular groove (20a) is located at the end of the protrusion (2213).

9. The housing assembly according to claim 7, characterized in that, The housing assembly also includes a bracket (224), a portion of which is located in the liquid tank housing (223) and another portion is located between the liquid tank housing (223) and the second end cap (222); The bracket (224) has an atomizing channel (224a) and a main air channel (224b). The inlet of the atomizing channel (224a) is close to the first end cap (221) and communicates with the sensing air channel (2a). The outlet of the atomizing channel (224a) is close to the second end cap (222). The inlet of the main air duct (224b) is located on the outer surface of the portion of the support (224) exposed between the liquid tank housing (223) and the second end cap (222), and the outlet of the main air duct (224b) is connected to the inlet of the atomizing channel (224a).

10. An atomizer, characterized in that, It includes an atomizing component (30) and a housing assembly of an atomizer as described in any one of claims 1 to 8, wherein the atomizing component (30) is located within a first main body portion (22).

11. A housing assembly for a power supply, characterized in that, It includes a second housing (40), which includes a second connecting portion (41) and a second main body portion (42) for accommodating a power supply assembly (60); The second connecting part (41) is connected to the second main body part (42) and is used for rotatable connection with the atomizer (200); The outer surface of the second main body (42) has a second annular groove (40a), the second annular groove (40a) surrounds the second connecting part (41) and is coaxially arranged with the second connecting part (41), the second annular groove (40a) is used to form an annular cavity communicating with the sensing air passage (2a) of the atomizer (200) with the outer surface of the atomizer (200); The second main body (42) has an airflow channel (1a), one end of which is located in the second annular groove (40a) and the other end is located inside the second main body (42) for connection to the airflow sensor (50).

12. The housing assembly according to claim 11, characterized in that, The outer surface of the second main body (42) has a second planar region (40b), and the second annular groove (40a) is located in the second planar region (40b).

13. The housing assembly according to claim 12, characterized in that, The second main body (42) also includes at least one of the following: The third annular sealing rib (4211) is located in the second planar region (40b), arranged around the second connecting part (41), and located inside the second annular groove (40a); The fourth annular sealing rib (4212) is located in the second planar region (40b), arranged around the second connecting part (41), and located outside the second annular groove (40a).

14. The housing assembly according to claim 11, characterized in that, The second connecting part (41) has threads for connecting the atomizer (200).

15. The housing assembly according to any one of claims 11 to 14, characterized in that, The difference between the circumference width of the second annular groove (40a) and the diameter of the airflow channel (1a) does not exceed 1 mm.

16. The housing assembly according to any one of claims 11 to 14, characterized in that, The diameter of the second annular groove (40a) is 10mm to 20mm.

17. The housing assembly according to any one of claims 11 to 14, characterized in that, The second main body (42) includes a support frame (422) and a cover plate (421), the cover plate (421) being located on the outer surface of the support frame (422), and the second annular groove (40a) being located on the side of the cover plate (421) away from the support frame (422).

18. The housing assembly according to claim 17, characterized in that, The second connecting part (41) is connected to the support frame (422), and the cover plate (421) has a through hole (421a) exposing the second connecting part (41).

19. A power supply, characterized in that, The power supply assembly includes a power supply component (60), an airflow sensor (50), and a housing assembly of the power supply as described in any one of claims 11 to 18, wherein the power supply component (60) and the airflow sensor (50) are located within a second main body (42), and the airflow sensor (50) is in communication with an airflow channel (1a).

20. An aerosol generating device, characterized in that, Includes an atomizer (200) and a power supply (100) for supplying power to the atomizer (200); the aerosol generating device satisfies at least one of the following: The atomizer (200) is the atomizer as described in claim 10; The power supply (100) is the power supply as described in claim 19.

Images