ATOMIZATION ASSEMBLY AND ELECTRONIC ATOMIZER

Abstract

An atomization assembly includes: a main housing having an atomization cavity and a medium storage cavity circumferentially surrounding the atomization cavity; and a heating unit including a liquid guide tube and a heating element, a first part of the liquid guide tube being accommodated in the atomization cavity, a second part of the liquid guide tube extending into the medium storage cavity, the heating element being wound outside the first part of the liquid guide tube accommodated in the atomization cavity. The liquid guide tube conducts heat generated by the heating element to the medium storage cavity.

Description

FIELD

This application relates to the field of atomization technologies, and more specifically, to an atomization assembly and an electronic atomizer.

BACKGROUND

An aerosol is a colloidal dispersion system formed by solid or liquid small particles dispersed and suspended in a gas medium. Because the aerosol can be drawn in by a human body through the respiratory system, a new alternative inhalation method is provided for users. An atomizer is a device that forms an aerosol from a stored atomizable medium through heating, ultrasound, or the like. The atomizable medium includes nicotine-containing e-liquids, medical drugs, and the like. Atomizing these media can deliver inhalable aerosols to the users, replacing conventional product forms and inhalation methods.

Different atomization media have different viscosities due to different ingredients of the media. A high-viscosity atomization medium is difficult to flow smoothly into an atomization unit, and ventilation bubbles are prone to occur, causing blockage. As a result, dry heating of a heating element is caused due to unsmooth liquid flow and a burnt smell is produced. Consequently, the taste of the generated aerosol is severely affected, and the promotion and application of the high-viscosity atomization medium is hindered.

SUMMARY

In an embodiment, the present invention provides an atomization assembly, comprising: a main housing having an atomization cavity and a medium storage cavity circumferentially surrounding the atomization cavity; and a heating unit comprising a liquid guide tube and a heating element, a first part of the liquid guide tube being accommodated in the atomization cavity, a second part of the liquid guide tube extending into the medium storage cavity, the heating element being wound outside the first part of the liquid guide tube accommodated in the atomization cavity, wherein the liquid guide tube is configured to conduct heat generated by the heating element to the medium storage cavity.

BRIEF DESCRIPTION OF THE DRAWINGS

Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

FIG. 1 is a schematic diagram of a structure of an atomization assembly according to an embodiment of this application;

FIG. 2 is a schematic diagram of a structure of an atomization assembly according to an embodiment of this application;

FIG. 3 is a schematic diagram of a structure of a heating unit according to an embodiment of this application;

FIG. 4 is a schematic exploded view of the heating unit shown in FIG. 3;

FIG. 5 is a schematic diagram of a structure of an atomization assembly according to an embodiment of this application;

FIG. 6 is a schematic diagram of a structure of an atomization assembly according to another embodiment of this application;

FIG. 7 is a schematic diagram of a structure of an atomization assembly according to another embodiment of this application; and

FIG. 8 is a schematic diagram of a structure of an atomization assembly according to still another embodiment of this application.

DETAILED DESCRIPTION

In an embodiment, the present invention provides an atomization assembly and an electronic atomizer.

In an embodiment, the present invention provides an atomization assembly that includes:

• • a main housing, provided with an atomization cavity and a medium storage cavity circumferentially surrounding the atomization cavity; and
  • a heating unit, including a liquid guide tube and a heating element, where a part of the liquid guide tube is accommodated in the atomization cavity, another part of the liquid guide tube extends into the medium storage cavity, and the heating element is wound outside the part of the liquid guide tube accommodated in the atomization cavity, and
  • the liquid guide tube can conduct the heat generated by the heating element to the medium storage cavity.

In one embodiment, the liquid guide tube is formed of a good conductor of heat.

In one embodiment, a liquid guide cavity communicated with the medium storage cavity is formed inside the liquid guide tube, and a liquid guide hole runs through and is formed on the cavity wall of the liquid guide cavity.

In one embodiment, the heating unit further includes a liquid guide member, the liquid guide member is wrapped outside the liquid guide tube and covers at least a part of the liquid guide hole, and the heating element is wound outside the liquid guide member.

In one embodiment, the liquid guide tube is of a tubular structure, and the liquid guide cavity runs through the liquid guide tube along the axial direction.

In one embodiment, the liquid guide tube is transversely placed in the atomization cavity along its own axial direction, and at least one axial end protrudes from the liquid guide member and extends into the medium storage cavity.

In one embodiment, the liquid guide member is circumferentially wrapped around the outer side wall of the liquid guide tube, and two axial ends of the liquid guide tube separately protrude from the liquid guide member and extend into the medium storage cavity.

In one embodiment, the liquid guide tube includes:

• • a support section, at least partially located in the atomization cavity, where the liquid guide member is wrapped around the outer side wall of the support section; and
  • at least one extension section, where each extension section is connected to one axial end of the support section and extends radially along the support section into the medium storage cavity.

In one embodiment, a plurality of heat dissipation fins are disposed on the extension section in a protruding manner.

In one embodiment, the heating element includes at least one of a heating wire, a heating tape, or a heating mesh.

An electronic atomizer is provided, including a battery assembly and the foregoing atomization assembly. The battery assembly is electrically connected to the heating unit of the atomization assembly for supplying power to the heating unit.

DESCRIPTIONS OF REFERENCE NUMERALS

100. Atomization assembly; 120. Main housing; 121. Atomization cavity; 123. Airflow channel; 125. Medium storage cavity; 140. Heating unit; 141. Liquid guide tube; 141a. Support section; 141b. Extension section; 1412. Liquid guide cavity; 1414. Liquid guide hole; 1416. Heat dissipation fin; 143. Heating element; 145. Liquid guide member; 147. Pin.

To make the foregoing objects, features, and advantages of this application clearer and easier to understand, the following further describes specific implementations of this application with reference to the accompanying drawings. In the following descriptions, many specific details are set forth for ease of fully understanding this application. However, this application may be implemented in many other manners different from those described herein. A person skilled in the art can make similar improvements without departing from the connotation of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

In the descriptions of this application, it should be understood that orientation or position relationships indicated by the terms such as “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “on”, “below”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “anticlockwise”, “axial direction”, “radial direction”, and “circumferential direction” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease and brevity of illustration and description of this application, rather than indicating or implying that the mentioned apparatus or component needs to have a particular orientation or needs to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of this application.

In addition, terms “first” and “second” are used merely for description, and shall not be understood as indicating or implying relative importance or implying a quantity of indicated technical features. Therefore, a feature restricted by “first” or “second” may explicitly indicate or implicitly include at least one of such features. In description of this application, “a plurality of” means at least two, such as two and three unless it is specifically defined otherwise.

In this application, unless otherwise explicitly specified or defined, the terms such as “install”, “connect”, “connection”, and “fix” should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediary, or internal communication between two components or mutual action relationship between two components, unless otherwise specified explicitly. A person of ordinary skill in the art may understand the specific meanings of the foregoing terms in this application according to specific situations.

In this application, unless otherwise explicitly specified or defined, the first feature being located “above” or “below” the second feature may be the first feature being in a direct contact with the second feature, or the first feature being in an indirect contact with the second feature through an intermediary. In addition, that the first feature is “above”, “over”, or “on” the second feature may indicate that the first feature is directly above or obliquely above the second feature, or may merely indicate that the horizontal position of the first feature is higher than that of the second feature. That the first feature is “below”, “under”, and “beneath” the second feature may be that the first feature is right below the second feature or at an inclined bottom of the second feature, or may merely indicate that the horizontal position of the first feature is lower than that of the second feature.

It should be noted that, when a component is referred to as “being fixed to” or “being arranged on” another component, the component may be directly on the another component, or an intermediate component may exist. When a component is considered to be “connected to” another component, the component may be directly connected to the another component, or an intermediate component may also exist. The terms “vertical”, “horizontal”, “upper”, “lower”, “left”, “right”, and similar expressions used in this specification are only for the purposes of illustration but not indicate a unique implementation.

Refer to FIG. 1 and FIG. 2. FIG. 1 is a schematic diagram of a structure of an atomization assembly according to an embodiment of this application. FIG. 2 is a schematic diagram of a structure of an atomization assembly according to an embodiment of this application. An embodiment of this application provides an electronic atomizer, including the atomization assembly 100 and a battery assembly. The atomization assembly 100 includes a main housing 120 and a heating unit 140 accommodated in the main housing 120. The main housing 120 is for storing an aerosol-forming medium. The battery assembly is electrically connected to the heating unit 140. The heating unit 140 may heat and atomize the aerosol-forming medium under the action of electric energy from the battery assembly to generate aerosols for a user to draw in.

Specifically, the main housing 120 is of a hollow housing structure. An atomization cavity 121, an airflow channel 123, and a medium storage cavity 125 are provided inside the main housing 120. The atomization cavity 121 is located at an end of the main housing 120 in the axial direction and communicated with one end face of the main housing 120. One end of the airflow channel 123 is communicated with the atomization cavity 121, and the other end of the airflow channel 123 extends along the axial direction of the main housing 120 until the other end of the airflow channel 123 is communicated with the other end face of the main housing 120. The medium storage cavity 125 extends from one axial end of the main housing 120 to the other axial end of the main housing 120 and circumferentially surrounds the atomization cavity 121 and the airflow channel 123.

In this way, the aerosol-forming medium is stored in the medium storage cavity 125 and gradually enters the atomization cavity 121 for heating and atomization during use of the electronic atomizer. Aerosols generated through atomization of the aerosol-forming medium may pass through the airflow channel 123 and flow out of the main housing 120 for the user to draw in.

It may be understood that the main housing 120 is not limited on the shape and structure, and the shapes and position relationships of the atomization cavity 121, the airflow channel 123, and the medium storage cavity 125 may also be provided as needed, to meet different requirements.

In this application, the axial direction of the main housing 120 is the Z direction in FIG. 1, the circumferential direction of the main housing 120 is the direction surrounding the central axis of the main housing 120, and the radial direction of the main housing 120 is the direction in which the central axis of the main housing 120 is used as an origin and that is perpendicular to the axial direction of the main housing 120.

Refer to FIG. 3 and FIG. 4. FIG. 3 is a schematic diagram of a structure of a heating unit according to an embodiment of this application. FIG. 4 is a schematic diagram of a structure of a heating unit according to an embodiment of this application.

The heating unit 140 is partially accommodated in the atomization cavity 121 for heating and atomizing an aerosol-forming medium entering the atomization cavity 121, to generate an aerosol. Specifically, the heating unit 140 includes a liquid guide tube 141 and a heating element 143. A part of the liquid guide tube 141 is accommodated in the atomization cavity 121, and another part of the liquid guide tube 141 extends into the medium storage cavity 125. The heating element 143 is wound outside the part of the liquid guide tube 141 accommodated in the atomization cavity 121. The liquid guide tube 141 can support and fasten the heating element 143. The heating element 143 can heat and atomize the aerosol-forming medium entering the atomization cavity 121, to generate the aerosol. In addition, the liquid guide tube 141 can heat an aerosol-forming medium stored in the medium storage cavity 125.

In this way, through the provision of the liquid guide tube 141, the viscosity of the aerosol-forming medium stored in the medium storage cavity 125 can be reduced due to an increase in temperature, and the aerosol-forming medium has better fluidity. For example, at normal temperature, the viscosity of the aerosol-forming medium is as high as 106 cP. When the temperature increases to about 70° C., the viscosity of the aerosol-forming medium decreases to less than 1000 cP. As the viscosity decreases, not only the amount of an aerosol generated through the atomization of the aerosol-forming medium increases, but also the risk of burning due to the inability to flow into the atomization cavity 121 in time due to excessively high viscosity is reduced, thereby improving the use experience of the electronic atomizer.

Refer to FIG. 1 again. In some embodiments, the liquid guide tube 141 heats the aerosol-forming medium by conducting a part of the heat generated by the heating element 143 into the medium storage cavity 125. Specifically, in an embodiment, the liquid guide tube 141 is formed of a good conductor of heat. The good conductor of heat includes but is not limited to aluminum alloy, brass, and other thermally conductive metal materials. Therefore, the liquid guide tube 141 has good thermal conductivity, and can efficiently conduct the heat generated by the heating element 143 to the medium storage cavity 125. It may be understood that the material forming the liquid guide tube 141 is not limited thereto, and may be provided as needed to meet different requirements.

Refer to FIG. 2 again. In some other embodiments, the liquid guide tube 141 directly heats the aerosol-forming medium in the medium storage cavity 125 through active heating. Specifically, in an embodiment, the liquid guide tube 141 is made of a high-resistivity metal material. The high-resistivity metal material includes but is not limited to 316L, iron-chromium-aluminum, nickel-chromium, and other metal materials. The liquid guide tube 141 is electrically connected to the battery assembly through pins 147. A current of the battery assembly may be transmitted to the liquid guide tube 141 through the pins 147. Therefore, the liquid guide tube 141 can heat under the action of the electric energy of the battery assembly to heat the aerosol-forming medium in the medium storage cavity 125, without relying on the heat generated by the heating element 143. It may be understood that the material forming the liquid guide tube 141 is not limited thereto, and may be provided as needed to meet different requirements.

In some embodiments, the liquid guide tube 141 may work synchronously with the heating element 143. When the heating element 143 heats and atomizes the aerosol-forming medium, the liquid guide tube 141 also heats the aerosol-forming medium stored in the medium storage cavity 125. In some other embodiments, the liquid guide tube 141 may alternatively preheat the aerosol-forming medium stored in the medium storage cavity 125 before the heating element 143 heats and atomizes the aerosol-forming medium, so that the viscosity of the aerosol-forming medium is reduced and the fluidity of the aerosol-forming medium is increased before the heating element 143 heats and atomizes the aerosol-forming medium to ensure smooth liquid supply.

It should be noted that, in some embodiments, the liquid guide tube 141 heats under the action of electrical energy to heat the aerosol-forming medium. In addition, the liquid guide tube 141 can also conduct the heat generated by the heating element 143 to the medium storage cavity 125 through thermal conduction, so that the heat generated by the heating element 143 is fully utilized to further reduce the viscosity of the aerosol-forming medium in the medium storage cavity 125.

As shown in FIG. 1, FIG. 3, and FIG. 4, a liquid guide cavity 1412 communicated with the medium storage cavity 125 is formed inside the liquid guide tube 141, and a liquid guide hole 1414 runs through and is formed on the cavity wall of the liquid guide cavity 1412. In this way, the aerosol-forming medium in the medium storage cavity 125 first enters the liquid guide cavity 1412, then flows through the liquid guide hole 1414 to the atomization cavity 121 outside the liquid guide cavity 1412, and then contacts the heating element 143 to generate an aerosol through atomization under the action of atomization of the heating element 143. Because the liquid guide tube 141 can reduce the viscosity of the aerosol-forming medium near by the liquid guide tube 141, a flow path for ventilation bubbles may be formed to facilitate the discharge of the ventilation bubbles from the liquid guide hole 1414. This helps to solve the problem of blockage and accumulation of the ventilation bubbles and reduces the risk of burning.

Still further, the heating unit 140 includes a liquid guide member 145. The liquid guide member 145 is wrapped outside the liquid guide tube 141 and covers the liquid guide hole 1414. The heating element 143 is wound outside the liquid guide member 145. In this way, aerosol-forming medium in the liquid guide cavity 1412 are introduced into the liquid guide member 145 through the liquid guide hole 1414 and evenly distributed in the liquid guide member 145. The heating element 143 contacts, heats, and atomizes the aerosol-forming medium in the liquid guide member 145 to generate aerosols.

Specifically, in some embodiments, the liquid guide tube 141 is of an integrally formed tubular structure, the liquid guide cavity 1412 runs through the liquid guide tube 141 along the axial direction, and a side wall of the liquid guide tube 141 forms the cavity wall of the liquid guide cavity 1412. In an embodiment in which the liquid guide tube 141 can generate heat actively heat to heat the aerosol-forming medium, pins 147 are respectively led out from two axial ends of the liquid guide tube 141, and the two pins 147 pass through the main housing 120 to be electrically connected to the positive electrode and the negative electrode of the battery assembly respectively, so as to form a current path to heat the liquid guide tube 141 by using resistance.

As shown in FIG. 1 and FIG. 2, more specifically, in an embodiment, the liquid guide tube 141 is of a straight tubular structure. The liquid guide tube 141 is transversely arranged in the atomization cavity 121 along its own axial direction. The central axial direction of the liquid guide tube 141 extends along the radial direction of the main housing 120. The two axial ends of the liquid guide tube 141 respectively extend into the medium storage cavity 125 along the radial direction. The liquid guide member 145 is circumferentially wrapped outside the side wall of the liquid guide tube 141, and the heating element 143 is circumferentially wound outside the liquid guide member 145. A plurality of groups of liquid guide holes 1414 are provided on the side wall of the liquid guide tube 141. The plurality of groups of liquid guide holes 1414 are arranged at intervals along the axial direction of the liquid guide tube 141. All the liquid guide holes 1414 in each group of liquid guide holes 1414 are arranged at intervals in the circumferential direction of the liquid guide tube 141. Therefore, the aerosol-forming medium in the liquid guide cavity 1412 can be evenly introduced into the liquid guide member 145.

Further, an axial length of the liquid guide tube 141 is greater than an axial length of the liquid guide member 145. At least one axial end of the liquid guide tube 141 protrudes from the liquid guide member 145 and extends into the medium storage cavity 125, so that the aerosol-forming medium in the medium storage cavity 125 is atomized. Preferably, the two axial ends of the liquid guide tube 141 respectively protrude from the liquid guide member 145 and extend into the medium storage cavity 125. It may be understood that, in another embodiment, the axial length of the liquid guide tube 141 may be equal to the axial length of the liquid guide member 145, and the two end faces of the liquid guide tube 141 in the axial direction are respectively flush with the two end faces of the liquid guide member 145 in the axial direction, respectively.

Specifically, in an embodiment in which the liquid guide tube 141 can generate heat to actively heat the aerosol-forming medium, the two axial ends of the liquid guide tube 141 respectively protrude from the liquid guide member 145 and extend into the medium storage cavity 125. The two axial ends of the liquid guide tube are electrically connected to one end of a pin 147 respectively, and the other end of the pin 147 passes through the main housing 120 in the direction away from the airflow channel 123 to be electrically connected to the battery assembly.

In this way, through the axial ends extending into the medium storage cavity 125, the liquid guide tube 141 can heat the aerosol-forming medium in the medium storage cavity 125. In this case, the aerosol-forming medium in the medium storage cavity 125 can enter into the liquid guide cavity 1412 through the two end openings of the liquid guide tube 141, and then pass through the liquid guide holes 1414 to reach the liquid guide member 145 and the heating element 143.

More specifically, in some embodiments, the cross section of the liquid guide tube 141 perpendicular to its own axial direction is annular, the inner diameter of the liquid guide tube 141 ranges from 0.3 mm to 3 mm, and the axial length of the liquid guide tube 141 ranges from 3 mm to 30 mm. It may be understood that, in some other embodiments, the shape and size of the liquid guide tube 141 are not limited thereto, and may be provided based on the size of the main housing 120 to meet different requirements.

Refer to FIG. 5 and FIG. 6. In some embodiments, the liquid guide tube 141 is generally of a “U”-shaped tubular structure, and includes a support section 141a and two extension sections 141b.

The support section 141a is at least partially located in the atomization cavity 121 and extends along the radial direction of the main housing 120. The liquid guide member 145 is wrapped around the outer side wall of the support section 141a. The heating element 143 is circumferentially wound outside the liquid guide member 145. The plurality of groups of liquid guide holes 1414 are arranged at intervals along the axial direction of the support section 141a. All liquid guide holes 1414 in the groups of liquid guide holes 1414 are arranged at intervals in the circumferential direction of the support section 141a. Therefore, the aerosol-forming medium in the liquid guide cavity 1412 can be evenly introduced into the liquid guide member 145.

The two extension sections 141b are connected to the opposite ends of the support section 141a in the axial direction, and extend along the radial direction of the support section 141a to the end of the medium storage cavity 125 away from the atomization cavity 121. Each extension section 141b is also provided with a liquid guide hole 1414, and the aerosol-forming medium in the medium storage cavity 125 may enter the extension section 141b through the liquid guide hole 1414 provided in the extension section 141b.

In an embodiment in which the liquid guide tube 141 may actively heat to heat the aerosol-forming medium, an end of each of the two extension sections 141b away from the support section 141a is electrically connected to one end of a pin 147, and the other end of the pin 147 passes through the main housing 120 along the direction away from the airflow channel 123 to be electrically connected to the battery assembly. In some embodiments, the two pins 147 may alternatively be electrically connected to the two ends of the support section 141a respectively, thereby reducing the resistance in the current path and improving the heating efficiency. The two extension sections 141b are used to conduct the heat generated by the support section 141a.

In this way, the extension sections 141b extends deeply into the medium storage cavity 125 to fully heat the aerosol-forming medium, thereby effectively reducing the viscosity of the aerosol-forming medium stored in the medium storage cavity 125. The aerosol-forming medium in the medium storage cavity 125 may enter into the extension section 141b through the liquid guide hole 1414 provided in the extension section 141b. Because the aerosol-forming medium near by the extension sections 141b have high temperature and low viscosity, the aerosol-forming medium may be used as a flow path for ventilation bubbles. This helps to solve the problem of blockage and accumulation of the ventilation bubbles, further reducing the risk of burning. It may be understood that the length of the extension section 141b is not limited and may be provided as needed to meet heating requirements.

In some other embodiments, the liquid guide tube 141 is substantially of an “L” shaped tubular structure, and includes a support section 141a and an extension section 141b connected to either end of the support section 141 in the axial direction. The liquid guide tube 141 may alternatively be roughly of a substantially “H” shaped tubular structure, and includes one support section 141a and four extension sections 141b, where two extension sections 141b are connected to one end of the support section 141a and are arranged along the axial direction of the main housing 120, and the other two extension sections 141b are connected to the other end of the support section 141a and are arranged along the axial direction of the main housing 120. The liquid guide tube 141 may alternatively be roughly of a hook-shaped tubular structure, and includes one support section 141a and three extension sections 141b, where one extension section 141b is connected to one end of the support section 141a and arranged along the axial direction of the main housing 120, and the other two extension sections 141b are connected to the other end of the support section 141a and are arranged along the axial direction of the main housing 120. It may be understood that the liquid guide tube 141 may alternatively include one support section 141a and other quantities of extension sections 141b. The extension sections 141b are connected to either end of the support section 141a and extend toward the medium storage cavity 125, and the extension direction is not limited hereto.

It may be understood that in an embodiment in which the liquid guide tube 141 can generate heat actively heat to heat the aerosol-forming medium, an end of each of the two extension sections 141b away from the support section 141a is electrically connected to one end of a pin 147, and the other end of the pin 147 passes through the main housing 120 along the radial or axial direction of the main housing 120 to be electrically connected to the battery assembly.

As shown in FIG. 6 and FIG. 8, because the extension section 141b is far away from the heating element 143, it is difficult to conduct heat from the heating element 143 to the medium storage cavity 125. Therefore, preferably, in an embodiment, a plurality of heat dissipation fins 1416 are disposed on the extension section 141b in a protruding manner. The plurality of heat dissipation fins 1416 are arranged at intervals along the extension direction of the extension section 141b. The provision of the heat dissipation fins 1416 effectively increases the contact area between the liquid guide tube 141 and the aerosol-forming medium, thereby improving the heat conduction efficiency. It may be understood that the heat dissipation fins 1416 are not limited on the shape, quantity, and arrangement and may be provided as needed to meet different heat conduction efficiency requirements.

In the foregoing embodiments, each liquid guide hole 1414 may be circular, or may be in a regular or irregular shape such as an ellipse or a kidney shape, and the equivalent diameter of each liquid guide hole 1414 ranges from 0.01 mm to 3 mm. It may be understood that the liquid guide holes 1414 are not limited on the quantity, arrangement, and shape. Various liquid guide holes 1414 may have the same or different sizes and shapes, and may be provided as needed to meet the requirements of different liquid guide effect.

In some embodiments, the liquid guide member 145 is of a porous structure, such as natural organic cotton or organic synthetic polymer porous foam. The liquid guide member 145 has the porosity of 0.45 to 0.99 and the permeability of 1×10⁻¹¹ mm to 1×10⁻⁹ mm. Therefore, aerosol-forming medium in the liquid guide cavity 1412 may be fully adsorbed through the liquid guide hole 1414, and the adsorbed aerosol-forming medium may be evenly distributed in the liquid guide member 145. It may be understood that, in some other embodiments, the material forming the liquid guide member 145 is not limited thereto. Corresponding materials may be selected as needed to meet different liquid guide requirements, such as porous ceramics, foam metal, and other materials.

The heating element 143 includes at least one of a heating wire, a heating tape, or a heating mesh having the circular cross section. Compared with the heating element in the conventional technologies that are columnar, block-shaped, or the like, the heating element 143 formed by a heating wire, a heating tape, a heating mesh, or other structures in this application is of a structure with a thin wall having a small thickness. Therefore, the thermal resistance is small, and the generated heat can be effectively conducted to the liquid guide tube 141. It may be understood that, in some other embodiments, the shape and size of the heating element 143 are not limited thereto, and may be provided as needed to meet different atomization requirements.

The foregoing atomization assembly 100 and electronic atomizer are provided with the liquid guide tube 141 that has the functions of liquid guide, heat conduction (or heating), and supporting the heating element 143. The liquid guide tube 141 can conduct a part of the heat generated by the heating element 143 to the aerosol-forming medium in the medium storage cavity 125, or actively heat the aerosol-forming medium in the medium storage cavity 125, so that the temperature of the aerosol-forming medium increases, and the viscosity decreases, thereby increasing the amount of aerosols generated through atomization of the aerosol-forming medium, and reducing the risk of burning due to unsmooth flowing of the liquid. Moreover, because the viscosity of the aerosol-forming medium near the liquid guide tube 141 is low, a path for ventilation bubbles may be formed. This helps to solve the problem of blockage and accumulation of the ventilation bubbles and reduces the risk of burning.

Technical features of the foregoing embodiments may be randomly combined. To make description concise, not all possible combinations of the technical features in the foregoing embodiments are described. However, the combinations of these technical features shall be considered as falling within the scope recorded by this specification provided that no conflict exists.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C.

Claims

1. An atomization assembly, comprising: a main housing having an atomization cavity and a medium storage cavity circumferentially surrounding the atomization cavity; anda heating unit comprising a liquid guide tube and a heating element, a first part of the liquid guide tube being accommodated in the atomization cavity, a second part of the liquid guide tube extending into the medium storage cavity, the heating element being wound outside the first part of the liquid guide tube accommodated in the atomization cavity,wherein the liquid guide tube is configured to conduct heat generated by the heating element to the medium storage cavity.

2. The atomization assembly of claim 1, wherein the liquid guide tube comprises a conductor of heat.

3. The atomization assembly of claim 1, wherein a liquid guide cavity communicated with the medium storage cavity is formed inside the liquid guide tube, and wherein a liquid guide hole runs through and is formed on a cavity wall of the liquid guide cavity.

4. The atomization assembly of claim 3, wherein the heating unit further comprises a liquid guide member, wherein the liquid guide member is wrapped outside the liquid guide tube and covers at least a part of the liquid guide hole, andwherein the heating element is wound outside the liquid guide member.

5. The atomization assembly of claim 4, wherein the liquid guide tube comprises a tubular structure, and wherein the liquid guide cavity runs through the liquid guide tube along an axial direction.

6. The atomization assembly of claim 5, wherein the liquid guide tube is transversely placed in the atomization cavity along its own axial direction, and wherein at least one axial end protrudes from the liquid guide member and extends into the medium storage cavity.

7. The atomization assembly of claim 6, wherein the liquid guide member is circumferentially wrapped around an outer side wall of the liquid guide tube, and wherein two axial ends of the liquid guide tube separately protrude from the liquid guide member and extend into the medium storage cavity.

8. The atomization assembly of claim 5, wherein the liquid guide tube comprises: a support section at least partially located in the atomization cavity, the liquid guide member being wrapped around an outer side wall of the support section; andat least one extension section, each extension section of the at least one extension section being connected to one axial end of the support section and extending radially along the support section into the medium storage cavity.

9. The atomization assembly of claim 8, further comprising: a plurality of heat dissipation fins disposed on the extension section in a protruding manner.

10. The atomization assembly of claim 1, wherein the heating element comprises at least one of a heating wire, a heating tape, and a heating mesh.

11. An electronic atomizer, comprising: a battery assembly; andthe atomization assembly of claim 1,wherein the battery assembly is electrically connected to the heating unit of the atomization assembly so as to supply power to the heating unit.

12. The electronic atomizer of claim 11, wherein the liquid guide tube comprises a conductor of heat.

13. The electronic atomizer of claim 11, wherein a liquid guide cavity communicated with the medium storage cavity is formed inside the liquid guide tube, and wherein a liquid guide hole runs through and is formed on a cavity wall of the liquid guide cavity.

14. The electronic atomizer of claim 13, wherein the heating unit further comprises a liquid guide member, wherein the liquid guide member is wrapped outside the liquid guide tube and covers at least a part of the liquid guide hole, andwherein the heating element is wound outside the liquid guide member.

15. The electronic atomizer of claim 14, wherein the liquid guide tube comprises a tubular structure, and wherein the liquid guide cavity runs through the liquid guide tube along an axial direction.

16. The electronic atomizer of claim 15, wherein the liquid guide tube is transversely placed in the atomization cavity along its own axial direction, and wherein at least one axial end protrudes from the liquid guide member and extends into the medium storage cavity.

17. The electronic atomizer of claim 16, wherein the liquid guide member is circumferentially wrapped around an outer side wall of the liquid guide tube, and wherein two axial ends of the liquid guide tube separately protrude from the liquid guide member and extend into the medium storage cavity.

18. The electronic atomizer of claim 15, wherein the liquid guide tube comprises: a support section at least partially located in the atomization cavity, the liquid guide member being wrapped around an outer side wall of the support section; andat least one extension section, each extension section of the at least one extension section being connected to one axial end of the support section and extending radially along the support section into the medium storage cavity.

19. The electronic atomizer of claim 18, further comprising: a plurality of heat dissipation fins disposed on the extension section in a protruding manner.