VAPORIZER AND ELECTRONIC VAPORIZATION APPARATUS

FIELD

The present invention relates to the technical field of electronic vaporization devices, and in particular, to a vaporizer and an electronic vaporization apparatus.

BACKGROUND

An electronic vaporization apparatus is an apparatus that vaporizes liquid (such as e-liquid) into smoke, and is widely used in various fields, such as medical treatment, e-cigarettes, and the like.

Currently, the electronic vaporization apparatus mainly includes a power supply component and a vaporizer connected to the power supply component. The power supply component is configured to supply power to the vaporizer, and the vaporizer is configured to heat and vaporize an aerosol-forming substrate when powered on. Specifically, an existing vaporizer mainly includes a heating body, a vaporization sleeve sleeved outside the heating body, and an outer housing sleeved outside the vaporization sleeve. The heating body is configured to heat and vaporize the aerosol-forming substrate when powered on.

However, during heating, heat generated by the heating body is locally concentrated and transferred to the outer housing of the vaporizer through heat conduction, so that a problem of an excessively high temperature occurs when a user is in contact with the vaporizer, resulting in relatively poor user experience.

SUMMARY

In an embodiment, the present invention provides a vaporizer, comprising: a vaporization sleeve having a first end and a second end provided opposite to each other, a vaporization cavity being provided in the vaporization sleeve; and a heat conducting element connected to the first end of the vaporization sleeve, the heat conducting element being configured to at least partially disperse heat on the vaporization sleeve.

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 perspective view of an overall structure of a vaporizer according to an embodiment of this application;

FIG. 2 is a schematic disassembly diagram of the structure shown in FIG. 1 before assembly;

FIG. 3 is a cross-sectional view of the vaporizer shown in FIG. 1 along an A′-A′ direction according to an embodiment of this application;

FIG. 4 is a schematic structural diagram of a heat conducting element according to an embodiment of this application;

FIG. 5 is a partial schematic diagram of a second heat conducting portion according to an embodiment of this application;

FIG. 6 is a partial schematic diagram of a second heat conducting portion according to another embodiment of the application;

FIG. 7 is a schematic structural diagram of a heat dissipation sleeve according to an embodiment of this application;

FIG. 8 is a B-direction view of an avoidance portion according to an embodiment of this application;

FIG. 9 is a C-direction view of an avoidance portion according to an embodiment of this application;

FIG. 10 is a perspective view of an overall structure of a vaporizer according to another embodiment of this application;

FIG. 11 is a schematic disassembly diagram of the structure shown in FIG. 10 before assembly;

FIG. 12 is a cross-sectional view of the vaporizer shown in FIG. 10 along an A-A direction according to an embodiment of this application;

FIG. 13 is a schematic structural diagram of a liquid storage cavity shell integrally formed with a heat conducting element according to an embodiment of this application;

FIG. 14 is a main view of a heat conducting element according to another embodiment of this application;

FIG. 15 is a cross-sectional view of the vaporizer shown in FIG. 10 along an A-A direction according to another embodiment of this application;

FIG. 16 is a schematic structural diagram of a base according to an embodiment of the application;

FIG. 17 is a schematic structural diagram of a heat dissipation sleeve according to an embodiment of this application; and

FIG. 18 is a schematic structural diagram of an electronic vaporization apparatus according to an embodiment of this application.

DETAILED DESCRIPTION

In an embodiment, the present invention provides a vaporizer and an electronic vaporization apparatus, where the vaporizer can resolve a problem of an excessively high temperature when a user is in contact with an outer housing.

In an embodiment, the present invention provides a vaporizer, including a vaporization sleeve and a heat conducting element, where the vaporization sleeve has a first end and a second end provided opposite to each other, and a vaporization cavity is provided in the vaporization sleeve; and the heat conducting element is connected to the vaporization sleeve, and is configured to disperse part of heat on the vaporization sleeve.

The heat conducting element includes a first heat conducting portion and a second heat conducting portion that are axially connected, where the first heat conducting portion is in a tubular structure and is socketed with the first end of the vaporization sleeve.

The vaporizer further includes an outer housing, sleeved on an outer side of the vaporization sleeve and the heat conducting element, where an outer side wall of the second heat conducting portion is provided with a flange, and the flange abuts against an inner side wall of the outer housing, and cooperates with the outer side wall of the second heat conducting portion and the inner side wall of the outer housing to form a first airway, where one end of the first airway is in communication with the vaporization cavity, and the other end is in communication with outside air.

A position of the second heat conducting portion away from the first heat conducting portion is provided with a vent hole, and at least one air inlet hole is provided at a position of the second heat conducting portion close to the first heat conducting portion or on the vaporization sleeve, where the vent hole is in communication with the outside air, the air inlet hole is in communication with the vaporization cavity, one end of the first airway is in communication with the vent hole, and the other end is in communication with the air inlet hole.

The flange includes a plurality of arc-shaped protrusions that are provided at intervals, and the plurality of protrusions form the first airway with the inner side wall of the outer housing and an outer side wall of the heat conducting element.

The flange includes a plurality of annular protrusions that are provided at intervals, a first sub-airway is formed between two adjacent annular protrusions, each of the annular protrusions has a notch to cause two adjacent sub-airways to be in communication with each other, and notches on the two adjacent annular protrusions are provided in a staggered manner.

A plane on which the annular protrusions are located is perpendicular to an axial direction of the heat conducting element.

The flange is spiral, and the first airway is a spiral airway.

The vaporizer further includes a liquid storage cavity shell, sleeved at least on an outer side of the vaporization sleeve, and cooperating with the outer side wall of the vaporization sleeve to form a liquid storage cavity, where the outer housing is sleeved on an outer side of the liquid storage cavity shell and is arranged to be spaced apart from the liquid storage cavity shell to form a thermal insulation space.

The vaporizer further includes a heat dissipation sleeve, sleeved on the outer side of the liquid storage cavity shell and configured to absorb heat on the liquid storage cavity shell.

The heat dissipation sleeve includes a connecting sleeve and several connecting bars arranged on an outer side wall of the connecting sleeve, where the several connecting bars are arranged at intervals along a circumferential direction of the connecting sleeve, and are perpendicular to an axial direction of the connecting sleeve.

A radial size of the second heat conducting portion is greater than that of the first heat conducting portion, and an edge of a side surface of the second heat conducting portion facing the vaporization sleeve is provided with several avoidance portions, each of the at least one air inlet hole is correspondingly provided at a position in which each of the avoidance portions is located, and two adjacent connecting bars cooperate with a side wall of the avoidance portions to form a second airway, and the second airway is in communication with the first airway.

A material of the heat conducting element is metal, and a material of the heat dissipation sleeve is plastic.

To resolve the foregoing technical problem, this application adopts another technical solution as follows: An electronic vaporization apparatus is provided, including a power supply component and a vaporizer connected to the power supply component, where the power supply component is configured to supply power to the vaporizer, the vaporizer is configured to heat and vaporize an aerosol-forming substrate when powered on, and the vaporizer is the vaporizer described above.

This application provides a vaporizer and an electronic vaporization apparatus. By arranging a vaporization sleeve and adding a heat conducting element to a first end of a vaporization sleeve, the vaporizer disperses part of heat on the vaporization sleeve through the heat conducting element, thereby avoiding a problem of an excessively high temperature caused by local concentration of heat.

The following clearly and completely describes the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are merely some but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application without creative efforts shall fall within the protection scope of this application.

The terms “first”, “second”, and “third” in this application are used for descriptive purposes only and shall not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defining “first”, “second”, and “third” can explicitly or implicitly include at least one of the features. In the description of this application, unless otherwise specifically specified, “a plurality of” means at least two, such as two, three, and the like. All directional indications (for example, up, down, left, right, front, back) in the embodiments of this application are only used for explaining relative position relationships, movement situations, or the like between the various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications change accordingly. In addition, terms “comprise”, “have”, and any variations thereof are intended to indicate non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units; and instead, further optionally includes a step or unit that is not listed, or further optionally includes another step or unit that is intrinsic to the process, method, product, or device.

“Embodiment” mentioned in the specification means that particular features, structures, or characteristics described with reference to the embodiment may be included in at least one embodiment of this application. The term appearing at different positions of the specification may not refer to the same embodiment or an independent or alternative embodiment that is mutually exclusive with another embodiment. A person skilled in the art explicitly or implicitly understands that the embodiments described in the specification may be combined with other embodiments.

The following describes this application in detail with reference to the accompanying drawings and embodiments.

Refer to FIG. 1 to FIG. 3. FIG. 1 is a perspective view of an overall structure of a vaporizer according to an embodiment of this application; FIG. 2 is a schematic disassembly diagram of the structure shown in FIG. 1 before assembly; and FIG. 3 is a cross-sectional view of the vaporizer shown in FIG. 1 along an A′-A′ direction according to an embodiment of this application; In this embodiment, a vaporizer 20 is provided. The vaporizer 20 may be configured to heat and vaporize an aerosol-forming substrate. In a specific embodiment, the vaporizer 20 is applicable to an e-cigarette, and is configured to heat and vaporize e-liquid to form smoke for a smoker to inhale. The following embodiments are all based on this example.

Specifically, the vaporizer 20 may include a vaporization sleeve 21 and a heat conducting element 22.

In a specific embodiment, the vaporizer 20 further includes a heating body, arranged in the vaporization sleeve 21 and configured to heat and vaporize e-liquid when powered on. Specifically, a vaporization cavity is provided in the vaporization sleeve 21, and the heating body is specifically accommodated in the vaporization cavity, and heats e-liquid entering the vaporization cavity when powered on. It may be understood that heat generated by heating of the heating body is conducted onto the vaporization sleeve 21 through heat conduction.

The vaporization sleeve 21 may specifically be a columnar body, and has a first end and a second end provided opposite to each other. The heat conducting element 22 specifically abuts against the first end of the vaporization sleeve 21 to cause the heat on the vaporization sleeve 21 to be directly conducted to the heat conducting element 22, thereby dispersing the heat on the vaporization sleeve 21, and avoiding a problem of an excessively high temperature caused by heat concentration. In a specific embodiment, the vaporizer 20 has a cigarette nozzle, and the second end of the vaporization sleeve 21 is an end facing the cigarette nozzle, and may be connected to the cigarette nozzle.

Specifically, a material of the heat conducting element 22 may be metal, such as brass. The heat conducting element 22 made of a metal material has higher heat conduction efficiency than that made of a material such as plastic or rubber, and can better disperse heat. Certainly, in other embodiments, the material of the heat conducting element 22 may also be a high heat conduction ceramic, which is not limited in this application.

It should be noted that, in a specific embodiment, referring to FIG. 3, the vaporizer 20 further includes an outer housing 23 sleeved on an outer side of the vaporization sleeve 21 and the heat conducting element 22. During specific use, a user is specifically in contact with the outer housing 23 of the vaporizer 20.

Specifically, referring to FIG. 4, FIG. 4 is a schematic structural diagram of a heat conducting element according to an embodiment of this application. The heat conducting element 22 may specifically be a columnar body, and may specifically include a first heat conducting portion 221 and a second heat conducting portion 222 axially connected to the first heat conducting portion 221. The first heat conducting portion 221 may specifically be a hollow tubular structure, and is configured to be sleeved on an outer side wall of the first end of the vaporization sleeve 21 to come into contact with the first end of the vaporization sleeve 21. In a specific embodiment, the first end of the vaporization sleeve 21 abuts against a side surface of the second heat conducting portion 222 facing the first heat conducting portion 221, to increase a contact area with the vaporization sleeve 21 and improve heat dissipation efficiency. Certainly, in other embodiments, the first end of the vaporization sleeve 21 may alternatively not abut against the second heat conducting portion 222, but only be in contact with the first heat conducting portion 221. The first heat conducting portion 221 and the second heat conducting portion 222 may be integrally formed.

Specifically, referring to FIG. 4, in an embodiment, both the second heat conducting portion 222 and the first heat conducting portion 221 may be hollow cylinders. The second heat conducting portion 222 and the first heat conducting portion 221 are axially connected and are coaxially arranged, and a diameter of the first heat conducting portion 221 is less than that of the second heat conducting portion 222. Specifically, an outer side wall of the second heat conducting portion 222 is provided with a flange 223. A side of the flange 223 away from the outer side wall of the second heat conducting portion 222 specifically abuts against an inner side wall of the outer housing 23, and the flange 223 cooperates with the outer side wall of the second heat conducting portion 222 and the outer housing 23 to form a first airway. Specifically, the flange 223 may be integrally formed with the outer side wall of the second heat conducting portion 222. One end of the first airway is in communication with the vaporization cavity, and the other end is in communication with outside air to enable the outside air to enter the vaporization cavity through the first airway, thereby extending a flow path of air on the second heat conducting portion 222. In this way, air passing through the first airway can take away as much heat as possible on the second heat conducting portion 222 to achieve a purpose of further lowering a temperature. In addition, newly entered air can be preheated through the temperature on the second heat conducting portion 222 to improve heat utilization of the heating body, and cause the air inhaled by the user to have a certain temperature, thereby avoiding inhalation of cool air from affecting user experience.

Specifically, referring to FIG. 3, a vent hole may be provided at a position of the second heat conducting portion 222 away from the first heat conducting portion 221, and at least one air inlet hole 225 may be provided at a position of the second heat conducting portion 222 close to the first heat conducting portion 221. Certainly, in other embodiments, at least one air inlet hole 225 may alternatively be provided at a position of the vaporization sleeve 21 close to the heat conducting element 22. Specifically, the vent hole is in communication with the outside air, the air inlet hole 225 is in communication with the vaporization cavity, one end of the first airway is specifically in communication with the vent hole to be in communication with the outside air, and the other end is in communication with the air inlet hole 225 to be in communication with the vaporization cavity.

In a specific embodiment, the flange 223 includes a plurality of arc-shaped protrusions that are arranged at intervals, and the plurality of arc-shaped protrusions form the first airway with the inner side wall of the outer housing 23 and an outer side wall of the heat conducting element 22. Specifically, the plurality of arc-shaped protrusions may be evenly distributed on the outer side wall of the second heat conducting portion 222, or may be scatteredly distributed on the outer side wall of the second heat conducting portion 222 in an irregular state, which is not limited in this application.

In another specific embodiment, the flange 223 may specifically be in a spiral shape, and is wound from an end of the second heat conducting portion 222 away from the first heat conducting portion 221 to a position close to the first heat conducting portion 221 in an axial direction of the second heat conducting portion 222. It may be understood that, in this embodiment, the first airway is spirally wound from an end of the second heat conducting portion 222 away from the first heat conducting portion 221 to an end close to the first heat conducting portion 221 along the outer side wall of the second heat conducting portion 222, that is, the first airway is a spiral airway.

Specifically, in this embodiment, due to a long path of the first airway, inhalation resistance applied to the user during inhalation is relatively large. To reduce the inhalation resistance and make the inhalation smoother while extending a flow path of the air, the flange 223 may further be provided with several notches 226, and the several notches 226 may be provided in a staggered manner in the axial direction of the second heat conducting portion 222. It may be understood that, in this embodiment, referring to FIG. 5, FIG. 5 is a partial schematic diagram of a second heat conducting portion according to an embodiment of this application. The flange 223 may be specifically divided by the notches 226 into a plurality of arc-shaped flanges provided at intervals along the axial direction of the second heat conducting portion 222, and the arc-shaped flanges are specifically in a tilted state. A first sub-airway is defined between two adjacent arc-shaped flanges. The outside air may enter one of the first sub-airways from the vent hole and may directly enter other first sub-airways in communication with the current first sub-airway at the notches 226, which greatly shortens the flow path of the air and effectively reduce the inhalation resistance.

In another specific embodiment, referring to FIG. 6, FIG. 6 is a partial schematic diagram of the second heat conducting portion according to another embodiment of the application. The flange 223 may specifically include a plurality of annular protrusions 223a that are provided at intervals, and a plane on which the annular protrusions 223a are located may be perpendicular to an axial direction of the heat conducting element 22, that is, the annular protrusions 223a are provided along a radial direction parallel to the heat conducting element 22, which can reduce a process difficulty coefficient and facilitate processing by a person skilled in the art. Specifically, in this embodiment, one of the first sub-airways is formed between two annular protrusions 223a provided adjacent to each other in the axial direction of the second heat conducting portion 222, and each of the annular protrusions 223a has at least one notch 226, so that two adjacent first sub-airways are in communication with each other, thereby enabling the outside air to enter the vaporization cavity through each of the first sub-airways and the air inlet hole 225. Specifically, to extend a path of air between the vent hole and the air inlet hole 225, the notch 226 on the two adjacent annular protrusions 223a may be provided in a staggered manner. Certainly, in other embodiments, the plane on which the annular protrusions 223a are located may also arranged to tilt toward a direction of the heat conducting element 22.

Specifically, in this embodiment, a plurality of notches 226 may be further provided in each of the annular protrusion 223a, and each of the notches 226 on two adjacent annular protrusions 223a may be provided in a staggered manner to ensure that the air has a flow path of a certain length on the second heat conducting portion 222, and reduce air inhalation resistance.

In a specific embodiment, referring to FIG. 3, the vaporizer 20 further includes a liquid storage cavity shell 24. The liquid storage cavity shell 24 is specifically sleeved on the outer side of the vaporization sleeve 21, and cooperates with an outer side wall of the vaporization sleeve 21 to form a liquid storage cavity configured to store e-liquid and the like. In a specific embodiment, the outer housing 23 is sleeved on an outer side of the liquid storage cavity shell 24 and is arranged to be spaced apart from the liquid storage cavity shell 24 to form a thermal insulation space S to reduce heat conduction between the liquid storage cavity shell 24 and the outer housing 23 through the thermal insulation space S, thereby reducing a temperature on the outer housing 23 and avoiding that the outer housing 23 has an excessively high temperature. It may be understood that, in a specific embodiment, a temperature on the vaporization sleeve 21 is conducted onto the liquid storage cavity shell 24 through liquid in the liquid storage cavity, and the heat on the liquid storage cavity shell 24 may be further conducted onto the outer housing 23.

Specifically, the liquid storage cavity shell 24 includes a first housing 241 and a second housing 242 that are axially connected. The first housing 241 is sleeved on the outer side wall of the first heat conducting portion 221, and the second housing 242 cooperates with the outer side wall of the vaporization sleeve 21 to form the liquid storage cavity. And, a radial size of the first housing 241 is less than that of the second housing 242, so that a recessed portion 243 (see FIG. 2) is formed at a position of the liquid storage cavity shell 24 corresponding to the first heat conducting portion 221.

In an embodiment, a heat dissipation sleeve 25 is further sleeved on an outer side wall of the liquid storage cavity shell 24 to absorb some temperatures on the liquid storage cavity shell 24 through the heat dissipation sleeve 25, thereby reducing the heat conducted onto the outer housing 23. Specifically, a material of the heat dissipation sleeve 25 may be plastic.

In a specific embodiment, referring to FIG. 7, FIG. 7 is a schematic structural diagram of a heat dissipation sleeve according to an embodiment of this application. The heat dissipation sleeve 25 may specifically include a connecting sleeve 251 and several connecting bars 252 arranged on an outer side wall of the connecting sleeve 251. The connecting sleeve 251 may specifically be an annular sleeve, configured to be embedded into the recessed portion 243 of the liquid storage cavity shell 24 and sleeved on the outer side wall of the first housing 241. And, in a specific embodiment, a thickness H11 of the connecting sleeve 251 is the same as a depth H12 of the recessed portion 243. The several connecting bars 252 may specifically be bar-shaped. And, an axial length of the connecting bars 252 is greater than that of the connecting sleeve 251, and a thickness H13 of the connecting bars 252 along a radial direction of the second housing 242 is the same as a width W11 of the thermal insulation space S, where a width W11 of the thermal insulation space S is a distance between an outer surface of the second housing 242 and an inner surface of the outer housing 23. Specifically, one end of each of the connecting bars 252 is fixedly provided on an outer surface of the connecting sleeve 251, and the other end extends outside of the connecting sleeve 251 along the axial direction of the connecting sleeve 251. The several connecting bars 252 are arranged at intervals along a circumferential direction of the connecting sleeve 251, an extending direction of the connecting bars 252 is the same as that of the connecting sleeve 251, and two adjacent connecting bars 252 cooperate with the outer side wall of the connecting sleeve 251 to form first vent grooves 253. In a specific embodiment, an end portion of the connecting bars 252 arranged at the outer surface of the connecting sleeve 251 is flush with an end portion of the connecting sleeve 251 close to the second heat conducting portion 222, to cause each of the first vent grooves 253 to extend from one end of the connecting sleeve 251 close to the second heat conducting portion 222 to the other end. In a specific embodiment, the several connecting bars 252 are configured to be sleeved on the outer side wall of the second housing 242 and cooperate with the outer side wall of the second housing 242 and the outer housing 23 to form several second vent grooves 254. The second vent grooves 254 are in communication with the first vent grooves 253. Specifically, a radial size of the second heat conducting portion 222 is greater than that of the first heat conducting portion 221. And, an edge of a side surface of the second heat conducting portion 222 facing the vaporization sleeve 21 is provided with several avoidance portions 227, and each of at least one air inlet hole 225 is correspondingly provided at a position where each of the avoidance portions 227 is located, that is, one avoidance portion 227 is provided with one air inlet hole 225. Specifically, referring to FIG. 8 and FIG. 9, FIG. 8 is a B-directional view of an avoidance portion according to an embodiment of this application; and FIG. 9 is a C-direction view of an avoidance portion according to an embodiment of this application, where direction B is perpendicular to direction C. The avoidance portion 227 defines third vent grooves 255. One end of each of the third vent groove 255 is a closed end, and the other end is bonded to and in communication with the first vent grooves 253 through the second vent grooves 254. Specifically, the avoidance portions 227 may be U-shaped grooves. Specifically, each of the avoidance portions 227 has a bottom wall 2271, a first side wall 2272 provided perpendicular to the bottom wall 2271, a second side wall 2273 provided adjacent to the first side wall 2272, and a third side wall 2274 provided adjacent to the second side wall 2273. The first side wall 2272 and the third side wall 2274 are provided opposite to each other. Two side walls of each of the third vent groove 255 are formed between the first side wall 2272 and the third side wall 2274, the second side wall 2273 forms a groove bottom of each of the third vent grooves 255, the bottom wall 2271 forms a closed end of each of the third vent grooves 255, and the air inlet hole 225 is specifically provided on the second side wall 2273.

In an embodiment, a position of the heat conducting element 22 corresponding to the second vent groove 254 is provided with a groove in communication with the first airway. Specifically, when the number of the several connecting bars 252 is an even number, that is, the number of first vent grooves 253 is an even number. One of the two adjacent first vent grooves 253 is in communication with the first airway through the groove and the other is in communication with the air inlet hole 225 through the third vent groove 255. Air in communication with the first airway enters the second vent groove 254 between two adjacent connecting bars 252 (on inner sides of the two adjacent connecting bars 252) through the first vent groove 253, and flows to two second vent grooves 254 on outer sides of the two adjacent connecting bars 252. After passing through the two second vent grooves 254 on the outer sides of the two adjacent connecting bars 252, the air respectively enters the two adjacent air inlet holes 225.

In a specific embodiment, the first vent grooves 253, the second vent grooves 254, and at least one pair of third vent grooves 255 adjacently provided cooperate with the inner side wall of the outer housing 23 to form a second airway. The second airway is in communication with the first airway through the groove to cause the air passing through the first airway to further pass through the second airway and enter the air inlet holes 225, so that the air can further flow through a surface in which the liquid storage cavity shell 24 is located, to take away part of heat on the liquid storage cavity shell 24, thereby further reducing the temperature on the liquid storage cavity shell 24. It should be noted that, directions of arrows corresponding to the first airway and second airway in FIG. 1 specifically refer to airflow directions.

In a specific embodiment, at least a part of the outer side wall of the heat conducting element 22 may also abut against the inner side wall of the outer housing 23 to form a sealed thermal insulation space S. It should be noted that, in this embodiment, the air inlet holes 225 on the heat conducting element 22 are not in communication with the thermal insulation space S. In this embodiment, a heat dissipation medium such as water or oil may also be set in the thermal insulation space S, to absorb part of heat through the heat dissipation medium, thereby reducing the heat conducted onto the outer housing 23 and reducing the temperature on the outer housing 23. In addition, the heat conducted onto the outer housing 23 can be more uniform through the heat dissipation medium, to avoid the problem of an excessively high temperature caused by a local high temperature of the outer housing 23.

In this embodiment, referring to FIG. 10 to FIG. 13, FIG. 10 is a perspective view of an overall structure of a vaporizer according to an embodiment of this application; FIG. 11 is a schematic disassembly diagram of the structure shown in FIG. 10 before assembly; FIG. 12 is a cross-sectional view of the vaporizer shown in FIG. 10 along an A-A direction according to an embodiment of this application; FIG. 13 is a schematic structural diagram of a liquid storage cavity shell integrally formed with a heat conducting element according to an embodiment of this application. In this embodiment, another vaporizer 30 is provided. The vaporizer 30 can also prevent the problem of an excessively high temperature caused by an excessively high local temperature of the vaporizer 30. Specifically, the vaporizer 30 may include a vaporization sleeve 31, a liquid storage cavity shell 32, and a heat conducting element 33.

In a specific embodiment, the vaporizer 30 further includes a heating body, arranged in the vaporization sleeve 31 and configured to heat and vaporize e-liquid when powered on. Specifically, a vaporization cavity is provided in the vaporization sleeve 31, and the heating body is specifically accommodated in the vaporization cavity, and heats e-liquid entering the vaporization cavity when powered on. It may be understood that heat generated by heating of the heating body is conducted onto the vaporization sleeve 31 through heat conduction.

The vaporization sleeve 31 may specifically be a columnar body, and has a first end and a second end provided opposite to each other. The liquid storage cavity shell 32 is specifically sleeved on the outer side of the vaporization sleeve 31, and is arranged to be spaced apart from the vaporization sleeve 31 to form a liquid storage cavity in cooperation with an outer side wall of the vaporization sleeve 31, where the liquid storage cavity is further configured to store liquid, such as e-liquid. Specifically, the liquid storage cavity is in communication with the vaporization cavity to enable liquid in the liquid storage cavity to enter the vaporization cavity and be into contact with the heating body, so that the heating body heats and vaporizes the liquid entering the vaporization cavity when powered on. In a specific embodiment, the vaporizer 30 has a cigarette nozzle, and the second end of the vaporization sleeve 31 is an end facing the cigarette nozzle, and may be connected to the cigarette nozzle. Specifically, a material of the heat conducting element 33 may be metal, such as brass. The heat conducting element 33 made of a metal material has higher heat conduction efficiency than that made of a material such as plastic or rubber, and can better disperse heat. Certainly, in other embodiments, the material of the heat conducting element 33 may also be a high heat conduction ceramic, which is not limited in this application.

Specifically, referring to FIG. 13, the heat conducting element 33 may be integrally formed with the liquid storage cavity shell 32 to reduce the number of components of the vaporizer 30 and facilitate a person skilled in the art to assemble the vaporizer 30. And, both a material of the heat conducting element 33 and a material of the liquid storage cavity shell 32 may be brass; and the heat conducting element 33 and the liquid storage cavity shell 32 made of the same material are convenient to be integrally formed in the production process.

Specifically, the first end of the vaporization sleeve 31 abuts against a side surface of the heat conducting element 33 facing the liquid storage cavity shell 32 to enable heat on the vaporization sleeve 31 to be conducted onto the heat conducting element 33, thereby dispersing part of heat on the vaporization sleeve 31 through the heat conducting element 33 to avoid a problem of an excessively high temperature caused by local concentration of heat.

In a specific embodiment, the heat conducting element 33 may be a columnar body, and is provided with an air inlet hole 342. One end of the air inlet hole 342 is in communication with atmosphere, and the other end is in communication with the vaporization cavity to enable the outside air to enter the vaporization cavity through the air inlet hole 342.

Specifically, referring to FIG. 12, the vaporizer 30 further includes an outer housing 34 sleeved on an outer side of the liquid storage cavity shell 32 and the heat conducting element 33, and the user is specifically in contact with the outer housing 34 of the vaporizer 30 during specific use. Specifically, the outer housing 34 is arranged to be spaced apart from the liquid storage cavity shell 32, and the inner side wall of the outer housing 34 abuts against at least a part of the outer side wall of the heat conducting element 33 to form a thermal insulation space S′ in cooperation with the liquid storage cavity shell 32 and the heat conducting element 33.

In a specific embodiment, referring to FIG. 14, FIG. 14 is a main view of a heat conducting element according to an embodiment of this application. The heat conducting element 33 may specifically include a heat conducting portion 331 and a seal portion 332 axially connected to the heat conducting portion 331. The heat conducting portion 331 may specifically be a columnar body, and the outer housing 34 is arranged to be spaced apart from the heat conducting portion 331. A radial size of the heat conducting portion 331 is less than that of the liquid storage cavity shell 32, that is, a recessed portion is formed at a position in which the heat conducting portion 331 is located. Specifically, the heat conducting portion 331 is configured to disperse heat on the vaporization sleeve 31. In a specific embodiment, an end surface of the first end of the vaporization sleeve 31 abuts against a side surface of the heat conducting portion 331 away from the seal portion 332, that is, surface-to-surface contact is formed in a contact position between the vaporization sleeve 31 and the heat conducting portion 331, thereby greatly increasing a contact area of the vaporization sleeve 31 with the heat conducting element 33, and effectively improving heat dissipation efficiency. Specifically, the seal portion 332 may be an annular structure, and an outer side wall of the seal portion 332 specifically abuts against the inner side wall of the outer housing 34 to form the sealed thermal insulation space S′. In a specific embodiment, a seal member 333 may be further arranged between the outer side wall of the seal portion 332 and the inner side wall of the outer housing 34 to ensure a seal effect. Specifically, referring to FIG. 12, in a specific embodiment, the vaporization cavity further includes a base 35, which is specifically arranged at a bottom of the heat conducting portion 331 and is sleeved in the seal portion 332. Specifically, a material of the base 35 may be silicone.

In an embodiment, referring to FIG. 12, the outer housing 34 is provided with at least one vent hole 341, and the at least one vent hole 341 corresponds to an end of the vaporization sleeve 31 away from the heat conducting element 33. In a specific embodiment, the air inlet hole 342 is provided on the heat conducting portion 331 and is in communication with the thermal insulation space S′, and the outside air enters from the vent hole 341, flows through the thermal insulation space S′ and the air inlet hole 342, and enters into the vaporization cavity. A flow path of the air can be extended by causing the air to pass through the thermal insulation space S′ and then enter the air inlet hole 342. In this way, the air passing through the thermal insulation space S′ can take away as much heat as possible away from a surface of the vaporization sleeve 31 to reduce a surface temperature of the vaporization sleeve 31, thereby reducing the heat conducted onto the outer housing 34, and making the temperature conducted onto the outer housing 34 have relatively good uniformity, thus avoiding the problem of an excessively high temperature caused by a local high temperature of the outer housing 34. In addition, newly entered air can be preheated by the temperature on the vaporization sleeve 31 to improve thermal utilization of the heating body, and cause the air inhaled by the user to have a certain temperature, thereby avoiding inhalation of cool air from affecting the user experience.

In another embodiment, referring to FIG. 15, FIG. 15 is a cross-sectional view of the vaporizer shown in FIG. 10 along an A-A direction according to another embodiment of this application. Different from the foregoing embodiments, a position of the outer housing 34 corresponding to the thermal insulation space S′ is not provided with a vent hole 341, and the outer housing 34 cooperates with the seal portion 332 and the outer side wall of the vaporization sleeve 31 to form the fully sealed thermal insulation space S′. The vent hole 341 is specifically provided on the base 35. And, in a specific embodiment, the vent hole 341 extends in an axial direction of the base 35. The air inlet hole 342 is specifically provided on the heat conducting portion 331 and extends in an axial direction of the heat conducting portion 331. In a specific embodiment, a central axis of the vent hole 341 is the same as that of the air inlet hole 342, and a hole diameter of the vent hole 341 is less than that of the air inlet hole 342.

In a specific embodiment, referring to FIG. 16, FIG. 16 is a schematic structural diagram of the base according to an embodiment of this application. A side surface of the base 35 facing the vaporization cavity is provided with several accommodating grooves 351. The accommodating grooves 351 are in communication with the vaporization cavity, and are configured to collect condensate or leakage liquid formed in the vaporization cavity. Specifically, the accommodating grooves 351 may be in communication with the vaporization cavity through the air inlet hole 342. Specifically, the accommodating grooves 351 may be located on two sides of the air inlet hole 342 or around the air inlet hole 342. In a specific embodiment, specifically, two accommodating grooves 351 may exist, and the two accommodating grooves 351 are provided opposite to each other on two sides of the vent hole 341.

In a specific embodiment, to further reduce the heat conducted by the vaporization sleeve 31 onto the outer housing 34, a heat dissipation medium may be set in the thermal insulation space S′ to absorb or take away part of heat. Specifically, the heat dissipation medium may be a gas, such as air. Certainly, the heat dissipation medium may also be a liquid, for example, may be any one or more of water and oil, which is not limited in this embodiment. Certainly, in other embodiments, the vent hole 341 may also be provided on the outer side wall of the seal portion 332, and is located at an end of the seal portion 332 away from the heat conducting portion 331. Specifically, referring to FIG. 5 and FIG. 6, several annular grooves 3321 are formed on the outer side wall of the seal portion 332, and the annular grooves 3321 cooperate with the outer housing 34 to form a first airway. One end of the first airway is in communication with the air inlet hole 342, and the other end is in communication with the vent hole 341 to enable the outside air to enter the vaporization cavity through the vent hole 341, the first airway, and the air inlet hole 342, thereby extending a flow path of air on the seal portion 332 through the first airway. In this way, the air passing through the first airway can take away as much heat as possible on the seal portion 332, to achieve a purpose of further cooling. In addition, newly entered air can be preheated through the temperature on the seal portion 332 to improve heat utilization of the heating body, and cause the air inhaled by the user to have a certain temperature, thereby avoiding inhalation of cool air from affecting user experience. It may be understood that, groove walls on two sides of the annular grooves 3321 are equivalent to the flange 223 in the foregoing embodiments.

In a specific embodiment, the annular grooves 3321 are formed by a plurality of arc-shaped protrusions provided at intervals cooperating with the outer side wall of the seal portion 332, and the plurality of arc-shaped protrusions cooperate with the inner side wall of the outer housing 34 and the outer side wall of the seal portion 332 to form the first airway. Specifically, the plurality of arc-shaped protrusions may be evenly distributed on the outer side wall of the seal portion 332, or may be scatteredly distributed on the outer side wall of the seal portion 332 in an irregular state, which is not limited in this application.

In a specific embodiment, the annular grooves 3321 include a spiral groove, that is, the groove is spiral and is wound from one end of the seal portion 332 away from the heat conducting portion 331 to a position close to the heat conducting portion 331 in an axial direction of the seal portion 332. It may be understood that, in this embodiment, the first airway is spirally wound from an end of the seal portion 332 away from the heat conducting portion 331 to an end close to the heat conducting portion 331 along the outer side wall of the seal portion 332, that is, the first airway is a spiral airway.

Specifically, in this embodiment, due to a long path of the first airway, inhalation resistance applied to the user during inhalation is relatively large. To reduce the inhalation resistance and make the inhalation smoother while extending a flow path of the air, several notches 3322 may further be provided on the groove walls of the annular grooves 3321, and the several notches 3322 may be provided in a staggered manner in the axial direction of the seal portion 332. The groove walls of the annular grooves 3321 are equivalent to the annular protrusions 223 in the foregoing embodiments. It may be understood that, in this embodiment, referring to FIG. 5, the annular grooves 3321 may specifically be divided by the notches 3322 into a plurality of sub-annular grooves with a relatively short length that are arranged at intervals along the axial direction of the seal portion 332 and are in communication with each other through the notches 3322. Specifically, in this embodiment, each of the sub-annular grooves is specifically in a tilted state. The outside air may enter one of the sub-annular grooves from the vent hole 341 and may directly enter other sub-annular grooves in communication with the current sub-annular groove at the notches 3322, thereby greatly shortening the flow path of air and effectively reducing inhalation resistance.

In another specific embodiment, referring to FIG. 6, the annular grooves 3321 include a plurality of circular grooves 3321a. The plurality of circular grooves 3321a are provided at intervals along the axial direction of the seal portion 332, and a plane on which the circular grooves 3321a are located is perpendicular to the axial direction of the seal portion 332, that is, the circular grooves 3321a are provided along a radial direction parallel to the seal portion 332, which can reduce a process difficulty coefficient and facilitate processing by a person skilled in the art. Specifically, in this embodiment, a groove wall of each of the circular grooves 3321a has at least one notch 3322 to cause two adjacent circular grooves 3321a to be in communication with each other, thereby enabling the outside air to enter the vaporization cavity through each of the circular grooves 3321a and the air inlet hole 342. Specifically, to extend a path of air between the vent hole 341 and the air inlet hole 342, the notches 3322 on the groove walls of the two adjacent circular grooves 3321a may be provided in a staggered manner. Certainly, in other embodiments, the plane on which the circular grooves 3321a are located may also arranged to tilt toward a direction of the heat conducting element 33.

Specifically, in this embodiment, a plurality of notches 3322 may be further provided on the groove wall of each of the circular grooves 3321a, and each notch 3322 on the groove walls of the two adjacent circular grooves 3321a may be provided in a staggered manner to ensure that the air has a flow path of a certain length on the seal portion 332 and reduce air inhalation resistance.

Further, in a specific embodiment, a heat dissipation sleeve 36 may be sleeved on the liquid storage cavity shell 32 and the outer side wall of the heat conducting portion 331 to absorb some temperatures on the liquid storage cavity shell 32 and the heat conducting portion 331 through the heat dissipation sleeve 36, thereby reducing the heat conducted onto the outer housing 34. A material of the heat dissipation sleeve 36 may specifically be plastic.

Specifically, referring to FIG. 17, FIG. 17 is a schematic structural diagram of a heat dissipation sleeve according to an embodiment of this application. Specifically, the heat dissipation sleeve 36 may specifically include a connecting sleeve 361 and several connecting bars 362 arranged on an outer side wall of the connecting sleeve 361. The connecting sleeve 361 may specifically be an annular sleeve, configured to be embedded in the recessed portion and be sleeved on the outer side wall of the heat conducting portion 331. And, in a specific embodiment, a thickness H1 of the connecting sleeve 361 is the same as a depth H2 and a length L1 of the recessed portion. The several connecting bars 362 may specifically be bar-shaped. And, an axial length of the connecting bars 362 is greater than that of the connecting sleeve 361, and a thickness H3 of the connecting bars 362 in the radial direction of the liquid storage cavity shell 32 is the same as a width W1 of the thermal insulation space S′. Specifically, the several connecting bars 362 are arranged at intervals along a circumferential direction of the connecting sleeve 361. And, an extending direction of the connecting bars 362 is the same as an axial direction of the connecting sleeve 361, and two adjacent connecting bars 362 cooperate with the outer side wall of the connecting sleeve 361 to form one of the first vent grooves 3323. In a specific embodiment, one of end portions of the connecting bars 362 arranged on the outer surface of the connecting sleeve 361 is flush with an end portion of the connecting sleeve 361 close to the heat conducting portion 331, to cause each of the first vent grooves 3323 to extend from one end of the connecting sleeve 361 close to the heat conducting portion 331 to the other end. In addition, one ends of each two connecting bars 362 close to the connecting sleeve 361 are connected to each other to cause one end of each of the first vent grooves 3323 to be a closed end. In a specific embodiment, the several connecting bars 362 are configured to be sleeved on the outer side wall of the liquid storage cavity shell 32 and cooperate with the outer side wall of the liquid storage cavity shell 32 to form several second vent grooves. It may be understood that, an end of the first vent grooves 3323 away from the second vent grooves is a closed end, and the first vent grooves 3323 are in communication with the second vent grooves.

In a specific embodiment, the first vent grooves 3323 and at least one pair of second vent grooves adjacently provided cooperate with the inner side wall of the outer housing 34 to form a second airway. The second airway is in communication with the first airway to enable air passing through the first airway to further pass through the second airway and enter the air inlet hole 342. In this way, the air can further flow through the surface on which the liquid storage cavity shell 32 is located, thereby taking away heat on the liquid storage cavity shell 32 to reduce the temperature on the liquid storage cavity shell 32. For a specific communication manner of the second airway and the first airway, reference may be made to related communication manners in the foregoing embodiments, and details are not repeated herein again.

It should be noted that, in this embodiment, the air inlet hole 342 provided on the heat conducting portion 331 corresponds to a position of the first vent grooves 3323 formed on the connecting sleeve 361, and the position of the connecting sleeve 361 corresponding to the air inlet hole 342 is provided with a through hole. The through hole is in communication with the air inlet hole 342 to cause the air to enter the air inlet hole 342 after passing through the second airway. In this way, air passing through the first airway is enabled to further flow through the second airway, thereby taking away part of heat on the liquid storage cavity shell 32 to further reduce heat conducted onto the outer housing 34.

In this embodiment, referring to FIG. 18, FIG. 18 is a schematic structural diagram of an electronic vaporization apparatus according to an embodiment of this application. An electronic vaporization apparatus 100 is provided. The electronic vaporization apparatus 100 may specifically be an e-cigarette. Specifically, the electronic vaporization apparatus 100 may include a power supply component 101 and a vaporizer 102 connected to the power supply component 101.

The vaporizer 102 is configured to heat and vaporize an aerosol-forming substrate when powered on. The aerosol-forming substrate may specifically be e-liquid, and the vaporizer 102 may specifically be the vaporizer 20 (30) according to any of the foregoing embodiments. For a specific structure and function thereof, reference may be made to relevant text descriptions of the vaporizer 20 (30) in the foregoing embodiments, and a same or similar technical effect may be achieved, which is not described herein again. The power supply component 101 is configured to supply power to the vaporizer 102. And, in an embodiment, the power supply component 101 may specifically be a rechargeable lithium ion battery.

For the electronic vaporization apparatus 100 provided in this embodiment, by arranging the vaporizer 102, arranging the vaporizer 102 to include the vaporization sleeve 21 (31), and adding the heat conducting element 22 (33) at the first end of the vaporization sleeve 21 (31), part of heat on the vaporization sleeve 21 (31) is dispersed through the heat conducting element 22 (33), thereby avoiding the problem of an excessively high temperature caused by local concentration of heat. In addition, since the material of the heat conducting element 22 (33) is metal, and the heat conduction efficiency is higher than that of the material such as plastic or rubber, the heat can be better dispersed.

The foregoing is merely implementations of this application but is not intended to limit the patent scope of this application. Any equivalent structural or equivalent process alternation made by using the content of the specification and the accompanying drawings of this application for direct or indirect use in other relevant technical fields shall fall within the protection scope of this application.

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.

	Number	Date	Country
Parent	PCT/CN2020/133396	Dec 2020	US
Child	18327327		US

VAPORIZER AND ELECTRONIC VAPORIZATION APPARATUS

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CROSS-REFERENCE TO PRIOR APPLICATION

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