E-CIGARETTE ATOMIZATION DEVICE AND E-CIGARETTE

Abstract

An e-cigarette atomization device and e-cigarette are provided. The e-cigarette atomization device includes a housing, a liquid storage chamber, an upper cover, an atomization assembly, and a lower cover. The housing has an air outlet channel. The lower cover cooperates with and is connected to the housing. The lower cover has an air inlet channel. The upper cover and the atomization assembly are located inside the housing. The upper cover cooperates with the lower cover to form an accommodating cavity. The atomization assembly is located inside the accommodating cavity. An atomization chamber is formed between the atomization assembly and the lower cover. The atomization chamber is in communication with the air outlet channel and the air inlet channel respectively. The upper cover includes a sidewall. The sidewall has a ventilation channel.

Description

CROSS-REFERENCE TO RELATED APPLICATION

The present application is a continuation of International Application No. PCT/CN2022/103358, filed on Jul. 1, 2022, which claims priority to Chinese patent application Ser. No. 20/211,1218361.X, filed on Oct. 19, 2021 and entitled “E-CIGARETTE ATOMIZATION DEVICE AND E-CIGARETTE”, both of which are incorporated herein by reference in its entirety.

FIELD

The present disclosure relates to the field of e-cigarette technologies, and in particular, to an e-cigarette atomization device and an e-cigarette.

BACKGROUND

As a healthy and convenient consumer product, the e-cigarette has been favored by consumers in recent years and its use is increasingly popular. The e-cigarette provides users with an inhalable vapor by atomizing the e-liquid.

However, in the related art, for the negative pressure generated in a liquid storage chamber, it is difficult to restore the balance of the internal and external pressure difference through circulation of a gas, and there are problems such as poor e-liquid supply and a smeared core, which not only greatly degrades the user experience, but also makes it easy to damage the e-cigarette.

SUMMARY

To resolve the foregoing technical problems, the present disclosure provides an e-cigarette atomization device and an e-cigarette including the atomization device. A ventilation channel is provided on an upper cover of the e-cigarette atomization device, to enable a liquid storage chamber of the e-cigarette atomization device to be in communication with an atomization chamber. In this way, the liquid storage chamber and the atomization chamber can achieve airflow balance through the ventilation channel, so that an e-liquid inside the liquid storage chamber can continuously flow to an atomization assembly of the e-cigarette atomization device to be heated and generate a vapor.

According to an aspect of the present disclosure, an e-cigarette atomization device is provided. The e-cigarette atomization device includes a housing, a liquid storage chamber, an upper cover, an atomization assembly, and a lower cover. The housing has an air outlet channel. The lower cover cooperates with and is connected to the housing. The lower cover has an air inlet channel. The upper cover and the atomization assembly are located inside the housing. The upper cover cooperates with the lower cover to form an accommodating cavity. The atomization assembly is located inside the accommodating cavity. The atomization assembly is configured to heat and atomize a liquid inside the liquid storage chamber. An atomization chamber is formed between the atomization assembly and the lower cover. The atomization chamber is in communication with the air outlet channel and the air inlet channel respectively. The upper cover includes a sidewall. The sidewall has a ventilation channel. A side surface of the sidewall facing toward the housing is an outer surface. A side surface of the sidewall facing toward the atomization assembly is an inner surface. The ventilation channel runs through the inner surface and the outer surface of the sidewall, and is in communication with the liquid storage chamber and the atomization chamber respectively.

According to another aspect of the present disclosure, an e-cigarette is provided. The e-cigarette includes the foregoing e-cigarette atomization device.

For the e-cigarette atomization device and the e-cigarette provided in the present disclosure. The ventilation channel is provided on the upper cover, to enable the liquid storage chamber to be in communication with the atomization chamber. In this way, the liquid storage chamber and the atomization chamber can achieve airflow balance through the ventilation channel, so that an e-liquid inside the liquid storage chamber can continuously flow to the atomization assembly to be heated and generate a vapor, thereby resolving the problems such as poor e-liquid supply and a smeared core.

BRIEF DESCRIPTION OF THE DRAWINGS

To describe the technical solutions in the present disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the implementations. Apparently, the accompanying drawings in the following description show some implementations of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.

FIG. 1 is a cross-sectional view of an e-cigarette atomization device according to an embodiment of the present disclosure;

FIG. 2 is an exploded view of the e-cigarette atomization device in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a ventilation channel according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of a ventilation channel according to another embodiment of the present disclosure;

FIG. 5 is an enlarged view of A in FIG. 1;

FIG. 6 is a cross-sectional view of an e-cigarette atomization device according to another embodiment of the present disclosure;

FIG. 7 is an exploded view of the e-cigarette atomization device in FIG. 6;

FIG. 8 is an enlarged view of B in FIG. 6;

FIG. 9 is a schematic structural diagram of a first sealing member of the e-cigarette atomization device in FIG. 6;

FIG. 10 is a side view of the first sealing member in FIG. 9;

FIG. 11 is a cross-sectional view of an e-cigarette atomization device according to still another embodiment of the present disclosure;

FIG. 12 is an exploded view of the e-cigarette atomization device in FIG. 11;

FIG. 13 is an enlarged view of C in FIG. 11;

FIG. 14 is a schematic structural diagram of a second sealing member according to an embodiment of the present disclosure;

FIG. 15 is a side view of the second sealing member in FIG. 14;

FIG. 16 is a schematic structural diagram of a second sealing member according to another embodiment of the present disclosure;

FIG. 17 is a side view of the second sealing member in FIG. 16; and

FIG. 18 is a structural block diagram of an e-cigarette according to an embodiment of the present disclosure.

Description of reference signs in accompanying drawings: 100—e—cigarette atomization device; 1—housing; 2—upper cover; 21—first part of the upper cover; 22—second part of the upper cover; 3—atomization assembly; 4—lower cover; 5—liquid storage chamber; 6—atomization chamber; 7—airflow channel; 8—ventilation channel; 41—air inlet channel; 81—first groove; 9—conductive nail; 10—air outlet channel; 31—porous element; 32—lead; 311—liquid absorption surface; 312—atomization surface; 14—first sealing member; 141—sealing member body; 1411—sealing top cover; 1412—first sidewall; 142—elastic piece; 1421—first part of the elastic piece; 1422—second part of elastic piece; 15—second sealing member; 151—sealing edge; 152—second sidewall; 1521—lower sidewall; 1522—upper sidewall; 15221—deformation portion; 17—liquid absorption sponge; 18—lower cover sealing member; 200—e-cigarette.

DETAILED DESCRIPTION

The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are merely some rather than all of the embodiments of the present disclosure. All other embodiments obtained by a person of ordinary skill in the art based on embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, the terms “first”, “second”, “third”, and the like are intended to distinguish between different objects, but do not indicate a particular order. In addition, orientation or position relationships indicated by the terms such as “up”, “down”, “inside”, and “outside” are based on orientation or position relationships shown in the accompanying drawings, and are used only for description of the present disclosure and brevity of description, rather than indicating or implying that the mentioned apparatus or component need to have a particular orientation or need to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of the present disclosure.

In the description of the present disclosure, unless otherwise specified and limited, the term “connection” should be understood in a broad sense. For example, the “connection” may be a fixed connection, a detachable connection, or an integral connection, or may be a direct connection, an indirect connection through an intermediary, or internal communication between two components. A person of ordinary skill in the art may understand the specific meanings of the foregoing terms in the present disclosure according to specific situations.

For clarity, parts in the accompanying drawings of the present disclosure are not drawn to scale. In addition, some well-known parts may not be shown in the drawings.

Referring to FIG. 1 and FIG. 2 together, FIG. 1 is a schematic structure diagram of an e-cigarette atomization device 100 according to an embodiment of the present disclosure, and FIG. 2 is an exploded view of the e-cigarette atomization device 100 in FIG. 1. As shown in FIG. 1 and FIG. 2, the e-cigarette atomization device 100 includes a housing 1, an upper cover 2, an atomization assembly 3, a lower cover 4, and a liquid storage chamber 5. The housing 1 is provided with an air outlet channel 10. The lower cover 4 cooperates with and is connected to the housing 1. The lower cover 4 is provided with an air inlet channel 41. The upper cover 2 and the atomization assembly 3 are located inside the housing 1. The upper cover 2 cooperates with the lower cover 4 to form an accommodating cavity. The atomization assembly 3 is located inside the accommodating cavity. The atomization assembly 3 is configured to heat and atomize a liquid inside the liquid storage chamber 5. An atomization chamber 6 is formed between the atomization assembly 3 and the lower cover 4. The atomization chamber 6 is in communication with the air outlet channel 10 and the air inlet channel 41 respectively. The upper cover 2 includes a sidewall. The sidewall is provided with a ventilation channel 8. A side surface of the sidewall facing toward the housing 1 is an outer surface. A side surface of the sidewall facing toward the atomization assembly 3 is an inner surface. The ventilation channel 8 runs through the inner surface and the outer surface of the sidewall. The ventilation channel 8 is in communication with the liquid storage chamber 5 and the atomization chamber 6 respectively.

For the e-cigarette atomization device 100 provided in this embodiment of the present disclosure, the ventilation channel 8 is provided on the upper cover 2, to enable the liquid storage chamber 5 to be in communication with the atomization chamber 6. In this way, the liquid storage chamber 5 and the atomization chamber 6 can achieve airflow balance through the ventilation channel 8, so that an e-liquid inside the liquid storage chamber 5 can continuously flow to the atomization assembly 3 to be heated by the atomization assembly 3 and generate a vapor for a user to inhale, thereby resolving the problems such as poor e-liquid supply and a smeared core of the atomization assembly 3, and improving the user experience.

The atomization assembly 3 includes a porous element 31, a lead 32, and a heating element (not shown). The porous element 31 includes a liquid absorption surface 311 and an atomization surface 312. According to an embodiment of the present disclosure, the liquid absorption surface 311 and the atomization surface 312 arranged opposite to each other. The liquid absorption surface 311 is arranged closer to the liquid storage chamber 5 than the atomization surface 312. The heating element is arranged on the atomization surface 312. A space between the atomization surface 312 and the lower cover 4 forms the atomization chamber 6.

The ventilation channel 8 runs through the sidewall of the upper cover 2 along an extending direction from the outer surface of the sidewall of the upper cover 2 to the inner surface of the sidewall of the upper cover 2. In some embodiments, the ventilation channel 8 may 8 may be linear (as shown in FIG. 1) or curved (as shown in FIG. 3). An inner wall of the ventilation channel 8 may be further provided with a first groove 81 (as shown in FIG. 4), so that the ventilation channel 8 can store a specific amount of liquid substrate. In this way, it is not easy for a liquid substrate in the liquid storage chamber 5 to enter the atomization chamber 6 through the ventilation channel 8.

There is at least one ventilation channel 8. When there are multiple ventilation channels 8, the multiple ventilation channels 8 may be spaced apart at equal distances on the sidewall of the upper cover 2, so that airflows between the liquid storage chamber 5 and the atomization chamber 6 can circulate through the multiple ventilation channels 8 that are arranged in a balanced manner.

The shape of the ventilation channel 8 may be a circle, an ellipse, a waist circle, a rectangle, a trapezoid or another polygon, or the like, which is not limited herein. The shape is a shape of a cross section taken along an aperture direction of the ventilation channel 8.

An aperture of the ventilation channel 8 ranges from 0.2 mm to 3 mm. When the outside atmosphere enters the liquid storage chamber 5 through the ventilation channel 8, the liquid substrate inside the liquid storage chamber 5 can be prevented from leaking to the atomization chamber 6 as much as possible.

The liquid storage chamber 5 is configured to accommodate the liquid substrate, for example, an e-liquid. The atomization assembly 3 is configured to heat and atomize the liquid substrate into an aerosol, for example, a vapor.

The ventilation channel 8 includes a first end and a second end that are opposite to each other. The first end runs through the inner surface of the sidewall of the upper cover 2 and is in communication with the liquid storage chamber 5. The second end of the ventilation channel 8 runs through the outer surface of the sidewall of the upper cover 2 and is in communication with the atomization chamber 6.

The sidewall of the upper cover 2, the lower cover 4, and the housing 1 cooperate to form an airflow channel 7. The airflow channel 7 is in communication with the second end of the ventilation channel 8 and the atomization chamber 6 respectively.

In some embodiments, the upper cover 2 includes a first part 21 and a second part 22. At least a part of the second part 22 is sleeved over the atomization assembly 3. A sidewall of the second part 22, the lower cover 4, and the housing 1 cooperate to form the airflow channel 7. The first part 21 is located on a side of the second part away from the lower cover 4, and an outer surface of a sidewall of the first part abuts against the inner wall of the housing 1.

The e-cigarette atomization device 100 further includes a conductive nail 9. The conductive nail 9 penetrates through the lower cover 4 and is connected to the lead 32 of the atomization assembly 3. The conductive nail 9 is configured to electrically connect the atomization assembly 3 and a power source. According to an embodiment of the present disclosure, a first part of the lead 32 of the atomization assembly 3 is embedded into the porous element 31 and forms an electrical connection to the heating element, and a second part of the lead 32 abuts against the conductive nail 9 to form an electrical connection. The second part of the lead 32 is connected to the first part, to form an L shape. The liquid substrate stored in the liquid storage chamber 5 enters an interior of the porous element 31 through the liquid absorption surface 311 and is conducted to the atomization surface 312, and is vaporized under the action of the heating element to form an aerosol and enter the atomization chamber 6. According to this embodiment of the present disclosure, the porous element 31 is a porous ceramic substrate.

As shown in FIG. 1 and FIG. 2, the e-cigarette atomization device 100 further includes a first sealing member 14. The first sealing member 14 includes a sealing member body 141. The sealing member body 141 is sleeved over an outer edge of the upper cover 2 and abuts against the inner wall of the housing 1 to form a seal, to prevent the liquid substrate in the liquid storage chamber 5 from leaking to the atomization chamber 6. The sealing member body 141 includes a sealing top cover 1411 and a first sidewall 1412. The sealing top cover 1411 is sleeved over a side surface of the upper cover 2 facing toward the air outlet channel 10. The first sidewall 1412 abuts against the sidewall of the upper cover 2. In this embodiment, the first sealing member 14 includes only the sealing member body 141.

As shown in FIG. 1 and FIG. 2, the e-cigarette atomization device 100 further includes a second sealing member 15. The second sealing member 15 includes a second sidewall 152 and a sealing edge 151 extending from the second sidewall 152. The second sidewall 152 is sleeved over an outer edge of the atomization assembly 3 and abuts against the inner surface of the sidewall of the upper cover 2 to form a seal, to prevent the liquid substrate in the liquid storage chamber 5 from leaking to the atomization chamber 6.

In some embodiments, as shown in FIG. 1 and FIG. 2, the e-cigarette atomization device 100 further includes a lower cover sealing member 18. The lower cover sealing member 18 is arranged surrounding the sidewall of the lower cover 4, and abuts against the inner wall of the housing 1, to prevent the liquid substrate in the atomization chamber 6 from leaking outside of the lower cover 4 and contaminating another component of the e-cigarette.

The air outlet channel 10 may be arranged along an axial direction of the housing 1 and is in communication with the atomization chamber 6. The air inlet channel 41 is in communication with the outside world and the atomization chamber 6 respectively. When the user vapes, the outside air enters the atomization chamber 6 from the air inlet channel 41, is mixed with an aerosol in the atomization chamber 6, and then enters the mouth of the user through the air outlet channel 10. In an embodiment of the present disclosure, the air outlet channel 10 and the air inlet channel 41 both face the atomization assembly 3.

It may be understood that, as the liquid substrate gradually enters the porous element 31 to form an aerosol, the air pressure inside the liquid storage chamber 5 gradually drops to be less than the outside atmospheric pressure. Because the sidewall of the upper cover 2 is provided with the ventilation channel 8, the outside atmosphere enters the liquid storage chamber 5 through the atomization chamber 6 and the ventilation channel 8, to achieve airflow balance between the atomization chamber 6 and the liquid storage chamber 5 (as indicated by arrow flow directions in FIG. 5, FIG. 5 being an enlarged view of A in FIG. 1). Therefore, the e-liquid in the liquid storage chamber 5 is enabled to continuously flow to the porous element 31, to ensure the atomization efficiency.

In some embodiments, as shown in FIG. 1, the ventilation channel 8 directly is in communication with the liquid storage chamber 5 and the airflow channel 7 respectively, so that the atomization chamber 6 is in communication with the ventilation channel 8 and the liquid storage chamber 5 through the airflow channel 7.

In some embodiments, the extending direction of the ventilation channel 8 is parallel to a first direction or is at a preset angle, for example, 5°, 10°, 15°, 30°, 45°, 55°, 65°, 75°, or 85°, to the first direction. The first direction is a direction parallel to the atomization surface 312, for example, an X-axis direction shown in FIG. 1.

According to an embodiment of the present disclosure, a shortest distance between the ventilation channel 8 and a side surface of the upper cover 2 away from the lower cover 4 ranges from 0.05 mm to 0.4 mm, so that the liquid substrate inside the ventilation channel 8 does not leak from the ventilation channel 8 to the atomization chamber 6 under the action of the surface tension.

In some embodiments, the e-cigarette atomization device 100 further includes at least one elastic member. The at least one elastic member can close and open the ventilation channel. When an air pressure inside the liquid storage chamber 5 is greater than or equal to the outside atmospheric pressure, the at least one elastic member covers at least one of the first end and the second end of the ventilation channel 8 to close the ventilation channel 8. When the air pressure inside the liquid storage chamber 5 is less than the outside atmospheric pressure, the at least one elastic member deforms to open the ventilation channel 8. The material of the elastic member is a material that is elastically deformable, for example, silica gel or rubber.

FIG. 6 is a schematic structural diagram of an e-cigarette atomization device 100 according to another embodiment of the present disclosure. FIG. 7 is an exploded view of the e-cigarette atomization device 100 in FIG. 6. FIG. 8 is a schematic structural diagram of a first sealing member 14 of the e-cigarette atomization device 100 in FIG. 6. FIG. 9 is a top view of the first sealing member 14. As shown in FIG. 6 to FIG. 9, in some embodiments, the first sealing member 14 includes a sealing member body 141 and further includes an elastic piece 142. The elastic piece 142 constitutes the at least one elastic member. The elastic piece 142 extends from an end of the first sidewall 1412 close to the lower cover 4 toward the lower cover 4. When an air pressure inside the liquid storage chamber 5 is greater than or equal to the outside atmospheric pressure, the elastic piece 142 covers the second end of the ventilation channel 8 to close the ventilation channel 8. When the air pressure inside the liquid storage chamber 5 is less than outside atmospheric pressure, the elastic piece 142 deforms in a direction toward the housing 1 to open the ventilation channel 8. The first sealing member 14 may be integrally formed, or the sealing member body 141 and the elastic piece 142 are fixedly connected in a manner, such as gluing, to form the first sealing member 14. In an embodiment of the present disclosure, the first sealing member 14 is an upper cover sealing member.

According to an embodiment of the present disclosure, the elastic piece 142 includes a first part 1421 and a second part 1422. The second end of the ventilation channel 8 extends to the airflow channel 7, and is covered by the first part 1421 of the elastic piece 142, to be blocked from the airflow channel 7. The second part 1422 of the elastic piece 142 extends from an end of the first part 1421 of the elastic piece 142 away from the liquid storage chamber 5 and is spaced apart at an angle from the outer surface of the sidewall of the upper cover 2 to form a first gap. When the air pressure inside the liquid storage chamber 5 is less than the outside atmospheric pressure to form a pressure difference, the outside atmosphere passes through the atomization chamber 6 and the airflow channel 7 to reach the first gap, to push the second part 1422 of the elastic piece 142 to move toward the housing 1, thereby actuating the first part 1421 of the elastic piece 142 to be separated from the second end of the ventilation channel 8, so that the ventilation channel 8 is in communication with the airflow channel 7. Therefore, the outside atmosphere is enabled to enter the liquid storage chamber 5 through the atomization chamber 6 and the ventilation channel 8, to achieve airflow balance between the atomization chamber 6 and the liquid storage chamber 5 (as indicated by arrow flow directions in FIG. 8, FIG. 8 being an enlarged view of B in FIG. 6). The sealing member body 141 may be integrally formed with the elastic piece 142, or the elastic piece 142 is fixedly connected to the sealing member body 141 in a manner such as engagement or gluing.

In some embodiments, using an extending direction from the liquid absorption surface 311 to the atomization surface 312 as a second direction, an outer contour of an orthographic projection of the first sealing member 14 on a plane perpendicular to the second direction is elliptical or racetrack-shaped. The outer contour of the orthographic projection of the first sealing member 14 on the plane perpendicular to the second direction includes two opposite long sides and two opposite short sides. There may be at least one elastic piece 142, and the at least one elastic piece 142 is distributed on the short side. When there are two elastic pieces 142, the two elastic pieces 142 may be symmetrically distributed on the two opposite short sides. In another embodiment, the at least one elastic piece 142 may alternatively be distributed on the long side. When there are two or more elastic pieces 142, the elastic pieces 142 may alternatively be distributed on both the long side and the short side. According to an embodiment of the present disclosure, there are two or four elastic pieces 142, and the elastic pieces 142 are symmetrically distributed on the two opposite long sides and the two opposite short sides.

Apparently, the outer contour of the orthographic projection of the first sealing member 14 on the plane perpendicular to the second direction may alternatively be in another shape, for example, a circle or a polygon.

In some other embodiments of the present disclosure, the elastic piece 142 may be independently arranged on the sidewall of the upper cover 2, and cover the second end of the ventilation channel 8 to close the ventilation channel. For example, the elastic piece 142 includes a main portion and a protruding portion. The sidewall of the upper cover 2 is provided with a second groove matching the protruding portion. The protruding portion of the elastic piece 142 is engaged with the second groove on the sidewall of the upper cover 2, to implement a fixed connection between the elastic piece 142 and the upper cover 2, which may be further fixed in a manner such as gluing or interference fit. A first part of the main portion of the elastic piece 142 covers the second end of the ventilation channel 8. A second part of the main portion of the elastic piece 142 extends from an end of the first part of the main portion of the elastic piece 142 away from the liquid storage chamber 5 toward the lower cover 4, and is spaced apart at an angle from the outer surface of the sidewall of the upper cover 2 to form the first gap. When the air pressure inside the liquid storage chamber 5 is less than the outside atmospheric pressure, the outside atmosphere enters the atomization chamber 6 through the air inlet channel 41, then passes through the airflow channel 7 to reach the first gap, and pushes the second part of the main portion of the elastic piece 142 to move toward the housing 1, thereby actuating the first part of the main portion of the elastic piece 142 to be separated from the second end of the ventilation channel 8, so that the ventilation channel 8 is in communication with the airflow channel 7, to achieve airflow balance between the atomization chamber 6 and the liquid storage chamber 5. Apparently, the elastic piece 142 may alternatively be fixedly connected to the upper cover 2 in a manner such as riveting or screwing.

Referring to FIG. 11 and FIG. 12 together, FIG. 11 is a schematic structure diagram of an e-cigarette atomization device 100 according to still another embodiment of the present disclosure, and FIG. 12 is an exploded view of the e-cigarette atomization device 100 in FIG. 11. As shown in FIG. 11 and FIG. 12, in some embodiments, the second sealing member 15 includes a sealing edge 151 and a second sidewall 152. The second sidewall 152 includes a lower sidewall 1521 close to an end of the lower cover 4 and an upper sidewall 1522 far away from the end of the lower cover. A deformation portion 15221 is formed on upper sidewall 1522. The deformation portion 15221 constitutes the at least one elastic member. When the air pressure inside the liquid storage chamber 5 is greater than or is equal to the outside atmospheric pressure, the deformation portion 15221 covers the first end of the ventilation channel 8 to close the ventilation channel 8, to block the first end of the ventilation channel 8 from the liquid storage chamber 5. When the air pressure inside the liquid storage chamber 5 is less than the outside atmospheric pressure, the deformation portion 15221 deforms in a direction toward the porous element 31 to open the ventilation channel 8. The upper sidewall 1522 may be integrally formed, or the deformation portion 15221 is fixedly connected to the other part of the upper sidewall 1522 in a manner, such as gluing, to form the upper sidewall 1522.

In some embodiments, the deformation portion 15221 protrudes from the atomization assembly 3 along a direction away from the lower cover 4 and is spaced apart from the upper cover 2. When the air pressure inside the liquid storage chamber 5 is less than outside atmospheric pressure to form a pressure difference, the outside atmosphere passes through the atomization chamber 6 and the airflow channel 7 to reach the first end of the ventilation channel 8, and pushes away the deformation portion 15221, to enable the first end of the ventilation channel 8 to be is in communication with the liquid storage chamber 5, thereby achieving airflow balance between the atomization chamber 6 and the liquid storage chamber 5 (as indicated by arrow flow directions in FIG. 13, FIG. 13 being an enlarged view of C in FIG. 11).

In some embodiments, using the extending direction from the liquid absorption surface 311 to the atomization surface 312 as the second direction, an outer contour of an orthographic projection of the second sealing member 15 on a plane perpendicular to the second direction is elliptical or racetrack-shaped. The outer contour of the orthographic projection of the second sealing member 15 on the plane perpendicular to the second direction includes two opposite long sides and two opposite short sides. There may be at least one deformation portion 15221, and the at least one deformation portion 15221 is distributed on the short side. When there are two deformation portions 15221, the two deformation portions 15221 may be symmetrically distributed on the two opposite short sides. In another embodiment, the at least one deformation portion 15221 may alternatively be distributed on the long side. In another embodiment, there are two or four deformation portions 15221, and the deformation portions 15221 are symmetrically distributed on the two opposite long sides. In another embodiment, there are two or more deformation portions 15221, and the deformation portions 15221 are distributed on both the long side and the short side, or there are four deformation portions 15221, and the deformation portions 15221 are distributed on both the two opposite long sides and the two opposite short sides.

Apparently, the outer contour of the orthographic projection of the second sealing member 15 on the plane perpendicular to the second direction may alternatively be in another shape, for example, a circle or a polygon.

Referring to FIG. 14 and FIG. 15, FIG. 14 is a schematic structural diagram of the second sealing member 15 according to an embodiment of the present disclosure, and FIG. 15 is a side view of the second sealing member 15 in FIG. 14. As shown in FIG. 14 and FIG. 15, in some embodiments, a thickness of the deformation portion 15221 is less than a thickness of another part of the upper sidewall 1522, or an elastic modulus of the deformation portion 15221 is greater than that of the another part of the upper sidewall 1522, which makes it easier for the deformation portion 15221 to deform and open the ventilation channel 8. The thickness of the deformation portion 15221 is a size of the deformation portion 15221 in a direction parallel to the liquid absorption surface 311, and the thickness of the another part of the upper sidewall 1522 is a size of the another part of the upper sidewall 1522 in the direction parallel to the liquid absorption surface 311.

Referring to FIG. 16 and FIG. 17, FIG. 16 is a schematic diagram of a second sealing member 15 according to another embodiment of the present disclosure, and FIG. 17 is a side view of the second sealing member 15 in FIG. 16. As shown in FIG. 16 and FIG. 17, in some embodiments, the deformation portion 15221 is spaced apart from another part of the upper sidewall 1522. The deformation portion 15221 may be a tongue-shaped elastic piece. Because the deformation portion 15221 is spaced apart from the another part of the upper sidewall 1522, it is easier for the outside atmosphere to push away the deformation portion 15221 and open the ventilation channel 8.

In some other embodiments, the deformation portion 15221 may alternatively be independently arranged on a sidewall of the atomization assembly 3, and cover the first end of the ventilation channel 8 to close the ventilation channel 8. For example, the deformation portion 15221 includes a main portion and a protruding portion. The sidewall of the atomization assembly 3 is provided with a third groove matching the protruding portion of the deformation portion 15221. The protruding portion of the deformation portion 15221 is engaged with the third groove on the sidewall of the atomization assembly 3, to implement a fixed connection between the deformation portion 15221 and the sidewall of the atomization assembly 3, which may be further fixed in a manner such as gluing or interference fit. The main portion of the deformation portion 15221 extends from an end of the protruding portion away from the lower cover 4 toward a direction away from the lower cover 4, and protrudes from an end of the atomization assembly 3 away from the lower cover 4. The main portion of the deformation portion 15221 covers the first end of the ventilation channel 8 to close the ventilation channel 8. Apparently, the deformation portion 15221 may also be fixedly connected to the atomization assembly 3 in a manner such as riveting or screwing. There may be multiple independently arranged deformation portions 15221, configured to cover the first end and the second end of the ventilation channel 8.

In some embodiments, as shown in FIG. 14 and FIG. 16, the deformation portion 15221 is curved, and an orthographic projection of the deformation portion 15221 on the liquid absorption surface 311 is located inside a region of the liquid absorption surface 311. A curvature center of the deformation portion 15221 is located on a side of the deformation portion 15221 away from the inner surface of the upper cover 2, so that the air pressure inside the liquid storage chamber 5 is less than outside atmospheric pressure, and when the outside atmosphere reaches the first end of the ventilation channel 8, it is easier for the outside atmosphere to push away the deformation portion 15221 and open the ventilation channel 8.

Referring to FIG. 1, FIG. 6, and FIG. 11 again, the e-cigarette atomization device 100 further includes a liquid absorption sponge 17. The liquid absorption sponge 17 is located inside the accommodating cavity and is located around the air inlet channel 41. The liquid absorption sponge 17 is configured to absorb a liquid substrate formed through condensation of the vapor, to prevent the liquid substrate formed through condensation of the vapor from entering the air outlet channel 10 and entering the mouth of the user during inhalation performed by the user.

Referring to FIG. 18, FIG. 18 is a structural block diagram of an e-cigarette 200 according to an embodiment of the present disclosure. As shown in FIG. 18, the e-cigarette 200 includes the e-cigarette atomization device 100 provided in any one of the foregoing embodiments.

In some embodiments, the e-cigarette 200 further includes a power assembly. The power assembly is electrically connected to the atomization assembly 3 through the conductive nail 9 to supply power to the atomization assembly 3, to heat the liquid substrate inside the liquid storage chamber 5 to form a vapor for the user to inhale.

For the e-cigarette 200 provided in this embodiment of the present disclosure, the ventilation channel 8 is provided on the upper cover 2 of the e-cigarette atomization device 100, to enable the liquid storage chamber 5 to be in communication with the atomization chamber 6. In this way, the liquid storage chamber 5 and the atomization chamber 6 can achieve airflow balance through the ventilation channel 8, so that an e-liquid inside the liquid storage chamber 5 can continuously flow to the atomization assembly 3 to be heated and generate a vapor, thereby resolving the problems such as poor e-liquid supply and a smeared core of the atomization assembly 3.

The foregoing descriptions are merely implementations of the embodiments of the present disclosure. It should be noted that a person of ordinary skill in the art may make improvements and polishing without departing from the principle of the embodiments of the present disclosure, and the improvements and polishing shall all fall within the protection scope of the present disclosure.

Claims

1. An e-cigarette atomization device, comprising:

a housing, and a liquid storage chamber located inside the housing, the housing having an air outlet channel; and

an upper cover, an atomization assembly, and a lower cover,

the lower cover cooperating with and being connected to the housing, the lower cover having an air inlet channel, the upper cover and the atomization assembly being located inside the housing, the upper cover cooperating with the lower cover to form an accommodating cavity, the atomization assembly being located inside the accommodating cavity, the atomization assembly being configured to heat and atomize a liquid inside the liquid storage chamber, an atomization chamber being formed between the atomization assembly and the lower cover, and the atomization chamber being in communication with the air outlet channel and the air inlet channel respectively; and

the upper cover comprising a sidewall, the sidewall having a ventilation channel, a side surface of the sidewall facing toward the housing being an outer surface, a side surface of the sidewall facing toward the atomization assembly being an inner surface, the ventilation channel running through the inner surface and the outer surface of the sidewall, and the ventilation channel being in communication with the liquid storage chamber and the atomization chamber respectively.

2. The e-cigarette atomization device according to claim 1, wherein the atomization assembly comprises a porous element and a heating element, the porous element comprises a liquid absorption surface and an atomization surface arranged opposite to each other, the heating element is arranged on the atomization surface, and a space between the atomization surface and the lower cover forms the atomization chamber.

3. The e-cigarette atomization device according to claim 1, wherein the ventilation channel runs through the sidewall of the upper cover along an extending direction from the outer surface of the sidewall to the inner surface of the sidewall.

4. The e-cigarette atomization device according to claim 3, wherein the extending direction of the ventilation channel is parallel to a first direction or is at a preset angle to the first direction, wherein the first direction is a direction parallel to the atomization surface.

5. The e-cigarette atomization device according to claim 1, wherein a first end of the ventilation channel runs through the inner surface of the sidewall of the upper cover and is in communication with the liquid storage chamber, and a second end of the ventilation channel runs through the outer surface of the sidewall of the upper cover and is in communication with the atomization chamber.

6. The e-cigarette atomization device according to claim 5, wherein the sidewall of the upper cover, the lower cover, and the housing cooperate to form an airflow channel, and the second end of the ventilation channel is in communication with the atomization chamber through the airflow channel.

7. The e-cigarette atomization device according to claim 1, further comprising at least one elastic member, the at least one elastic member being configured to close and open the ventilation channel.

8. The e-cigarette atomization device according to claim 7, wherein when an air pressure inside the liquid storage chamber is greater than or equal to an outside atmospheric pressure, the at least one elastic member covers at least one of the first end and the second end of the ventilation channel to close the ventilation channel; and

when the air pressure inside the liquid storage chamber is less than the outside atmospheric pressure, the at least one elastic member deforms to open the ventilation channel.

9. The e-cigarette atomization device according to claim 7, further comprising a first sealing member, the first sealing member comprising a sealing member body and an elastic piece extending from the sealing member body, the elastic piece constituting the at least one elastic member, the sealing member body being sleeved over an outer edge of the upper cover and abutting against an inner wall of the housing, the sealing member body comprising a sealing top cover and a first sidewall, the sealing top cover being sleeved over a side surface of the upper cover facing toward the air outlet channel, the first sidewall abutting against the sidewall of the upper cover, the elastic piece extending toward the lower cover from an end of the first sidewall close to the lower cover, and the elastic piece covering the second end of the ventilation channel to close the ventilation channel.

10. The e-cigarette atomization device according to claim 9, wherein when the air pressure inside the liquid storage chamber is less than an outside atmospheric pressure, the elastic piece deforms in a direction toward the housing to open the ventilation channel.

11. The e-cigarette atomization device according to claim 9, wherein using an extending direction from the liquid absorption surface to the atomization surface as a second direction, an outer contour of an orthographic projection of the first sealing member on a plane perpendicular to the second direction is elliptical or racetrack-shaped.

12. The e-cigarette atomization device according to claim 11, wherein the outer contour of the orthographic projection of the first sealing member on the plane perpendicular to the second direction comprises two opposite long sides and two opposite short sides, there are two elastic pieces, and the two elastic pieces are symmetrically distributed on the two opposite short sides.

13. The e-cigarette atomization device according to claim 11, wherein the outer contour of the orthographic projection of the first sealing member on the plane perpendicular to the second direction comprises the two opposite long sides and the two opposite short sides, there is at least one elastic piece, and the at least one elastic piece is distributed on the long side.

14. The e-cigarette atomization device according to claim 8, further comprising a second sealing member, the second sealing member being sleeved over an outer edge of the atomization assembly and abutting against the inner surface of the sidewall of the upper cover, the second sealing member comprising a second sidewall and a sealing edge extending from the second sidewall, the second sidewall comprising a lower sidewall close to an end of the lower cover and an upper sidewall away from the end of the lower cover, a deformation portion being formed on the upper sidewall, the deformation portion constituting the at least one elastic member, and the deformation portion covering the first end of the ventilation channel to close the ventilation channel.

15. The e-cigarette atomization device according to claim 14, wherein the deformation portion is a tongue-shaped elastic piece.

16. The e-cigarette atomization device according to claim 14, wherein when the air pressure inside the liquid storage chamber is less than the outside atmospheric pressure, the deformation portion deforms in a direction toward the porous element to open the ventilation channel.

17. The e-cigarette atomization device according to claim 14, wherein using an extending direction from the liquid absorption surface to the atomization surface as a second direction, an outer contour of an orthographic projection of the second sealing member on a plane perpendicular to the second direction is elliptical or racetrack-shaped.

18. The e-cigarette atomization device according to claim 17, wherein the outer contour of the orthographic projection of the second sealing member on the plane perpendicular to the second direction comprises two opposite long sides and two opposite short sides, there are two deformation portions, and the two deformation portions are symmetrically distributed on the two opposite short sides.

19. The e-cigarette atomization device according to claim 17, wherein the outer contour of the orthographic projection of the second sealing member on the plane perpendicular to the second direction comprises the two opposite long sides and the two opposite short sides, there is at least one deformation portion, and the at least one deformation portion is distributed on the long side.

20. An e-cigarette, comprising the e-cigarette atomization device according to claim 1.