ATOMIZER AND ELECTRONIC ATOMIZATION DEVICE

Abstract

An atomizer and an electronic atomization device are provided. The atomizer includes: an outer housing; a liquid storage cavity; a first liquid guide element, having a first surface and a second surface facing away each other, where the first surface absorbs a liquid substrate in the liquid storage cavity; a second liquid guide element, in fluid communication with the second surface to absorb a liquid substrate in the first liquid guide element, where the second liquid guide element has an atomization surface extending flatly; and a heating element, coupled to the atomization surface and configured to heat at least part of a liquid substrate in the second liquid guide element to generate an aerosol. The second liquid guide element is in fluid communication with the second surface to absorb the liquid substrate, and the heating element formed thereon heats and atomizes the liquid substrate to generate an aerosol.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202111097205.2, filed with the China National Intellectual Property Administration on Sep. 18, 2021 and entitled “ATOMIZER AND ELECTRONIC ATOMIZATION DEVICE”, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

Embodiments of this application relate to the field of electronic atomization technologies, and in particular, to an atomizer and an electronic atomization device.

BACKGROUND

Smoking products (such as cigarettes and cigars) burn tobacco to produce tobacco smoke during use. Attempts are made to manufacture products that release compounds without burning of tobacco to replace these tobacco-burning products.

A heating device is an example of the products, which releases compounds by heating rather than burning of materials. For example, the materials may be tobacco or non-tobacco products that may or may not include nicotine. As another example, products providing aerosols, for example, electronic atomization devices, exist. The devices usually include an atomizable liquid, which is heated to be atomized, so as to generate an inhalable aerosol.

SUMMARY

An embodiment of this application provides an atomizer, including an outer housing. The outer housing has arranged therein:

• • a liquid storage cavity, configured to store a liquid substrate;
  • a first liquid guide element, having a first surface close to the liquid storage cavity and a second surface facing away from the first surface, where the first surface is configured to be in fluid communication with the liquid storage cavity to absorb the liquid substrate in the liquid storage cavity;
  • a second liquid guide element, in fluid communication with the second surface of the first liquid guide element to absorb a liquid substrate in the first liquid guide element, where the second liquid guide element has an atomization surface extending flatly; and
  • a heating element, coupled to the atomization surface and configured to heat at least part of a liquid substrate in the second liquid guide element to generate an aerosol.

In a preferred implementation, the liquid storage cavity has an opening. The first liquid guide element is configured to cover the opening to seal the liquid storage cavity, so that the liquid substrate in the liquid storage cavity substantially leaves through the first liquid guide element.

In a preferred implementation, the second liquid guide element is rigid.

In a preferred implementation, the second liquid guide element includes a porous ceramic body.

In a preferred implementation, the atomization surface is arranged to be located on a side of the second liquid guide element facing away from the first liquid guide element.

In a preferred implementation, the second liquid guide element is arranged to be in contact with the second surface to be in fluid communication with the second surface.

In a preferred implementation, the second liquid guide element includes a first portion extending in a direction perpendicular to a longitudinal direction of the outer housing and a second portion extending from the first portion toward the second surface.

The second portion is constructed to be in contact with the second surface.

The atomization surface is located on the first portion.

In a preferred implementation, an extension length of the first portion is greater than an extension length of the second portion.

In a preferred implementation, the second liquid guide element is further constructed to abut against the second surface to support at least part of the first liquid guide element.

In a preferred implementation, a first convex edge extending in a longitudinal direction of the outer housing is further arranged in the outer housing.

The first convex edge is constructed to abut against the first surface to hold at least part of the first liquid guide element.

In a preferred implementation, a space is provided between the atomization surface of the second liquid guide element and the second surface of the first liquid guide element.

In a preferred implementation, the second liquid guide element is in direct or indirect contact with the second surface of the first liquid guide element to absorb the liquid substrate in the first liquid guide element, and a contact area thereof is less than an area of the atomization surface.

In a preferred implementation, the atomizer further includes:

• • a third liquid guide element, positioned between the second surface of the first liquid guide element and the second liquid guide element. The second liquid guide element is in fluid communication with the second surface through the third liquid guide element.

In a preferred implementation, the third liquid guide element is flexible.

In a preferred implementation, the first liquid guide element has a rigidity greater than that of the third liquid guide element and less than that of the second liquid guide element.

In a preferred implementation, the second liquid guide element is constructed to accommodate or support at least part of the third liquid guide element.

In a preferred implementation, the second liquid guide element has a notch, a groove, or a recess toward the first liquid guide element; and

At least part of the third liquid guide element is accommodated or held in the notch, the groove, or the recess.

In a preferred implementation, the third liquid guide element is constructed in a shape of a strip, a block, or a column extending in a longitudinal direction of the outer housing.

In a preferred implementation, the third liquid guide element includes a third portion perpendicular to a longitudinal direction of the outer housing and a fourth portion extending in the longitudinal direction of the outer housing from the third portion,

The fourth portion is in contact with the second surface.

The third portion is in contact with the second liquid guide element.

In a preferred implementation, the second liquid guide element is constructed in a shape of a sheet or a plate perpendicular to a longitudinal direction of the main housing.

In a preferred implementation, the atomizer further includes:

• • a support, constructed to accommodate and hold at least part of the second liquid guide element and of the third liquid guide element.

In a preferred implementation, the support includes:

• • a first step, configured to support at least part of the second liquid guide element; and
  • a second step, configured to support at least part of the third liquid guide element.

The first step and the second step have different heights in a longitudinal direction of the outer housing.

In a preferred implementation, the atomizer further includes:

• • a support, constructed to abut against the second surface to hold at least part of the first liquid guide element.

In a preferred implementation, the atomizer further includes:

• • an air channel, configured to provide a fluid path for air to cross the first liquid guide element in a longitudinal direction of the outer housing to enter the liquid storage cavity.

In a preferred implementation, the outer housing has arranged therein: an inner wall, configured to define the liquid storage cavity configured to store the liquid substrate. The first liquid guide element has a peripheral side wall extending between the first surface and the second surface.

At least part of an air channel is formed between the peripheral side wall and the inner wall.

In a preferred implementation, a second convex edge extending in a longitudinal direction of the outer housing is arranged on the inner wall. The peripheral side wall has a flat and straight portion adjacent to the inner wall, and the flat and straight portion abuts against the second convex edge, so that a gap is retained between the peripheral side wall and the inner wall to define at least part of the air channel.

In a preferred implementation, the heating element includes a resistance heating trajectory formed on the atomization surface.

Another embodiment of this application further provides an atomizer, configured to atomize a liquid substrate to generate an aerosol, and including:

• • a liquid storage cavity, configured to store a liquid substrate;
  • a porous ceramic body, including a first portion extending in a direction perpendicular to a longitudinal direction of the atomizer and a second portion extending from the first portion toward the liquid storage cavity, where
  • the second portion is constructed to be in fluid communication with the liquid storage cavity to absorb the liquid substrate; and
  • the first portion has an atomization surface extending flatly; and
  • a heating element, coupled to the atomization surface and configured to heat at least part of a liquid substrate in a second liquid guide element to generate an aerosol.

In a preferred implementation, the atomizer further includes:

• • a first liquid guide element, constructed to extend in the direction perpendicular to the longitudinal direction of the atomizer and arranged between the liquid storage cavity and the second liquid guide element in the longitudinal direction of the outer housing.

The second portion is constructed to at least partially run through the first liquid guide element in the longitudinal direction of the atomizer.

In a preferred implementation, the second portion has an insertion segment with a cross-sectional area less than those of other portions, and the insertion segment runs through the first liquid guide element to be in fluid communication with the liquid storage cavity.

In a preferred implementation, the second portion has a step defined by the insertion segment, and the step abuts against the second surface to support at least part of the first liquid guide element.

Another embodiment of this application further provides an electronic atomization device, including an atomizer configured to atomize a liquid substrate to generate an aerosol and a power supply assembly configured to supply power to the atomizer. The atomizer includes the atomizer described above.

BRIEF DESCRIPTION OF THE DRAWINGS

One or more embodiments are exemplarily described with reference to corresponding figures in drawings, and the exemplary descriptions are not to be construed as a limitation on the embodiments. Elements in the drawings having the same reference numeral represent similar elements, and unless otherwise particularly stated, the figures in the drawings are not drawn to scale.

FIG. 1 is a schematic structural diagram of an electronic atomization device according to an embodiment of this application.

FIG. 2 is a schematic structural diagram of the atomizer in FIG. 1 according to an embodiment.

FIG. 3 is a schematic exploded view of the atomizer shown in FIG. 2 from a perspective.

FIG. 4 is a schematic exploded view of the atomizer shown in FIG. 2 from another perspective.

FIG. 5 is a schematic sectional view of the atomizer shown in FIG. 2 in a width direction.

FIG. 6 is shows a microtopographic map of oriented fibers for preparing a first liquid guide element.

FIG. 7 is a schematic diagram of a second liquid guide element in FIG. 5 after being assembled to a support.

FIG. 8 is a schematic sectional view of a support in FIG. 5 from another perspective.

FIG. 9 is a schematic structural diagram of a main housing in FIG. 5 from another perspective.

FIG. 10 is a schematic diagram of a second channel portion formed between a first liquid guide element and a main housing in FIG. 5.

FIG. 11 is a schematic sectional view of the atomizer shown in FIG. 2 in a thickness direction.

FIG. 12 is an enlarged view of a portion C in FIG. 11.

FIG. 13 is a schematic sectional view of the second liquid guide element in FIG. 5 after being assembled to the support.

FIG. 14 is a schematic structural diagram of a heating element in FIG. 5 from another perspective.

FIG. 15 is a schematic exploded view of an atomizer from a perspective according to another embodiment.

FIG. 16 is a schematic exploded view of the atomizer in FIG. 15 from another perspective.

FIG. 17 is a schematic sectional view of the atomizer in FIG. 15 in a width direction.

FIG. 18 is a schematic structural diagram of a second liquid guide element in FIG. 15 from another perspective.

FIG. 19 is a schematic structural diagram of a second liquid guide element in FIG. 18 from another perspective.

FIG. 20 is a schematic sectional view of an atomizer in a width direction according to another embodiment.

FIG. 21 is a schematic exploded view of the atomizer in FIG. 20 from a perspective.

FIG. 22 is a schematic diagram of a heating element formed on a second liquid guide element according to another embodiment.

FIG. 23 is a schematic exploded view of an atomizer from a perspective according to another embodiment.

FIG. 24 is a schematic exploded view of the atomizer in FIG. 23 from another perspective.

FIG. 25 is a schematic sectional view of the atomizer in FIG. 23 in a width direction.

FIG. 26 is a schematic diagram of a first liquid guide element, a second liquid guide element, and a third liquid guide element in FIG. 23 after assembly.

FIG. 27 is a schematic diagram of the second liquid guide element and the third liquid guide element in FIG. 26 after being assembled in a support.

FIG. 28 is a schematic structural diagram of a second liquid guide element in FIG. 23 from another perspective.

FIG. 29 is a schematic sectional view of the first liquid guide element, the second liquid guide element, and the third liquid guide element in FIG. 26 after assembly.

FIG. 30 is a schematic structural diagram of a second liquid guide element according to another embodiment.

FIG. 31 is a schematic sectional view of a support in FIG. 23 from another perspective.

FIG. 32 is a schematic exploded view of an atomizer from a perspective according to another embodiment.

FIG. 33 is a schematic structural diagram of the atomizer in FIG. 32 from another perspective.

FIG. 34 is a schematic sectional view of the atomizer in FIG. 32 in a width direction.

FIG. 35 is a schematic diagram of a first liquid guide element, a second liquid guide element, and a third liquid guide element in FIG. 32 after assembly.

FIG. 36 is a schematic diagram of the first liquid guide element, the second liquid guide element, and the third liquid guide element in FIG. 32 after being assembled to a support.

FIG. 37 is a schematic structural diagram of a support in FIG. 32 from another perspective.

FIG. 38 is a schematic exploded view of an atomizer from a perspective according to another embodiment.

FIG. 39 is a schematic exploded view of the atomizer in FIG. 38 from another perspective.

FIG. 40 is a schematic sectional view of the atomizer in FIG. 38 from a perspective.

FIG. 41 is a schematic diagram of partial components in the atomizer in FIG. 38 after assembly.

FIG. 42 is a schematic structural diagram of a second liquid guide element in FIG. 41 from another perspective.

FIG. 43 is a schematic sectional view of the partial components in FIG. 41 after assembly.

FIG. 44 is a schematic exploded view of partial components in FIG. 38 from another perspective.

FIG. 45 is a schematic structural diagram of a second liquid guide element according to another embodiment.

DETAILED DESCRIPTION

For ease of understanding of this application, this application is described below in more detail with reference to drawings and specific implementations.

An embodiment of this application provides an electronic atomization device. Referring to FIG. 1, the electronic atomization device includes: an atomizer 100, configured to store a liquid substrate and configured to atomize the liquid substrate to generate an aerosol; and a power supply assembly 200, configured to supply power to the atomizer 100.

In an optional implementation, for example, as shown in FIG. 1, the power supply assembly 200 includes: a receiving cavity 270, arranged at an end in a length direction and configured to receive and accommodate at least part of the atomizer 100; and a first electrical contact 230, at least partially exposed from a surface of the receiving cavity 270 and configured to supply power to the atomizer 100 when at least part of the atomizer 100 is received and accommodated in the power supply assembly 200.

According to a preferred implementation shown in FIG. 1, a second electrical contact 21 is arranged on an end portion of the atomizer 100 opposite to the power supply assembly 200 in the length direction, so that when at least part of the atomizer 100 is received in the receiving cavity 270, the second electrical contact 21 is in contact with and abuts against the first electrical contact 230 to form electrical connection.

A seal member 260 is arranged in the power supply assembly 200, and at least part of an internal space of the power supply assembly 200 is separated by the seal member 260 to form the receiving cavity 270. In the preferred implementation shown in FIG. 1, the seal member 260 is constructed to extend in a cross-section direction of the power supply assembly 200, and is preferably prepared by using a flexible material, so as to prevent a liquid substrate seeping from the atomizer 100 to the receiving cavity 270 from flowing to components such as a controller 220 and a sensor 250 inside the power supply assembly 200.

In the preferred implementation shown in FIG. 1, the power supply assembly 200 further includes: a battery core 210, facing away from another end of the receiving cavity 270 in the length direction and configured to supply power; and the controller 220, arranged between the battery core 210 and an accommodation cavity, where the controller 220 operably guides a current between the battery core 210 and the first electrical contact 230.

The power supply assembly 200 includes a sensor 250, which is configured to sense an inhalable airflow generated by the atomizer 100 during inhalation, so that the controller 220 controls, based on a detection signal of the sensor 250, the battery core 210 to output a current to the atomizer 100.

Further, in the preferred implementation shown in FIG. 1, a charging interface 240 is arranged on another end of the power supply assembly 200 facing away from the receiving cavity 270, and is configured to supply power to the battery core 210.

An embodiment in FIG. 2 to FIG. 5 shows schematic structural diagrams of the atomizer 100 in FIG. 1 according to an embodiment. The atomizer includes a main housing 10.

As shown in FIG. 2 and FIG. 3, the main housing 10 is substantially in a shape of a flat cylinder. An interior thereof is hollow, which is a necessary functional component configured to store and atomize a liquid substrate. The main housing 10 has a proximal end 110 and a distal end 120 opposite to each other in a length direction. According to common use requirements, the proximal end 110 is configured as an aerosol inhalation end for a user, and a suction nozzle A is arranged on the proximal end 110 for inhalation by the user. The distal end 120 is an end to be coupled to the power supply assembly 200, and the distal end 120 of the main housing 10 is an open space in which a detachable end cap 20 is mounted. The open space structure is configured for necessary functional components to be mounted inside the main housing 10.

Further, in a specific implementation shown in FIG. 2 to FIG. 3, the second electrical contact 21 runs into the atomizer 100 from a surface of the end cap 20, so that at least part of the second electrical contact is exposed from the atomizer 100, thereby coming into contact with the first electrical contact 230 to form electrical connection. In addition, a first air inlet 22 is further arranged on the end cap 20, which is configured for external air to enter the atomizer 100 during inhalation. Further referring to FIG. 3, the second electrical contact 21 is flush with the surface of the end cap 20 after being assembled.

Further referring to FIG. 3 to FIG. 5, the main housing 10 has arranged therein a liquid storage cavity 12 configured to store a liquid substrate and an atomization assembly configured to absorb the liquid substrate from the liquid storage cavity 12 and heat and atomize the liquid substrate. In a schematic structural sectional view shown in FIG. 5, a vapor conveying tube 11 in an axial direction is arranged in the main housing 10, and the liquid storage cavity 12 configured to store the liquid substrate is formed in a space between an outer wall of the vapor conveying tube 11 and an inner wall of the main housing 10. A first end of the vapor conveying tube 11 opposite to the proximal end 110 is in communication with the suction nozzle A, to convey the generated aerosol to the suction nozzle A for inhalation.

Further, as shown in the figure, the vapor conveying tube 11 and the main housing 10 are integrally molded by using a moldable material, so that the prepared liquid storage cavity 12 forms an open space or an opening toward the distal end 120.

The main housing 10 further includes a second liquid guide element 30, a heating element 40, and a support 70.

The second liquid guide element 30 has a first portion 31 extending in a width direction of the main housing 10 and a second portion 32 extending in a longitudinal direction of the main housing 10 from the first portion 31. The second portion 32 is in fluid communication with the liquid storage cavity 12 through a first liquid guide element 50 in a shape of a sheet or a block. The second liquid guide element 30 is made of conventional flexible plant cotton, and the first liquid guide element 50 is prepared from oriented fibers and is in a hard form.

The heating element 40 surrounds at least part of the first portion 31 to heat at least part of a liquid substrate in the first portion 31 to generate an aerosol.

The support 70 is in a shape of a hollow cup or cylinder. An interior thereof is configured to hold the second liquid guide element 30 and define an atomization chamber surrounding the first portion 31. The aerosol generated by the heating element 40 through heating is released into the atomization chamber and then outputted to the vapor output tube 11. In addition, an upper end of the support 70 close to the liquid storage cavity 12 supports the first liquid guide element 50.

Specifically, the second liquid guide element 30 is prepared from a flexible strip or a rod-shaped fiber material, for example, a cotton fiber, a non-woven fabric fiber, or a sponge. During use, the second portion 32 is configured to absorb the liquid substrate and then deliver the liquid substrate to the first portion 31 through capillary infiltration. The heating element 40 is constructed to surround at least part of the first portion 31 and heat at least part of the liquid substrate of the first portion 31 to generate an aerosol. As shown in FIG. 3 to FIG. 5, the heating element 40 is constructed as a spiral heating wire, and may be made of resistive metal, such as aludirome or nichrome.

In an optional implementation, an extension length of the first portion 31 of the second liquid guide element 30 in FIG. 5 is about 9 mm, and an extension length of the second portion 32 is about 7.5 mm. An inner diameter of the heating element 40 is in a range of about 2.3 mm to 2.6 mm.

In an implementation, the first liquid guide element 50 is a layer of organic porous fibers in a shape of a sheet or a block extending in a cross-sectional direction of the main housing 10. After assembly, an upper surface of the first liquid guide element 50 close to the liquid storage cavity 12 is opposite to the liquid storage cavity 12 and is configured to absorb the liquid substrate, and a lower surface facing away from the liquid storage cavity 12 delivers the liquid substrate to the second portion 32 of the second liquid guide element 30 with which the lower surface is in contact, as shown by an arrow R1 in FIG. 5. In addition, a first plug-in hole 51 for the vapor conveying tube 11 to run through is arranged on the first liquid guide element 50.

In a specific implementation, the first liquid guide element 50 is made of 138 # hard synthetic organic polymer fiber cotton, which has a density in a range of 0.1 mg/mm³ to 0.9 mg/mm³. An overall weight of the first liquid guide element 50 is in a range of about 0.04 g to 0.06 g. The first liquid guide element 50 is prepared from oriented fibers substantially in an oriented arrangement in the length direction. For example, FIG. 6 shows a microtopographic map of polypropylene fibers having an oriented arrangement according to an embodiment. By arranging the oriented fibers in the length direction of the first liquid guide element 50, the first liquid guide element 50 is endowed with a high anti-bending property and a rigidity.

Further referring to FIG. 7 and FIG. 8, a holding structure in the support 70 configured to hold the second liquid guide element 30 includes a first holding recess 71 and a second holding recess 72.

The first holding recess 71 is arranged on an inner bottom wall, extends in the width direction of the main housing 10, and is configured to hold the first portion 31 of the second liquid guide element 30. The second holding recess 72 extends in the longitudinal direction of the main housing 10, and is configured to hold the second portion 32 of the second liquid guide element 30.

In a preferred implementation shown in FIG. 7 and FIG. 8, the support 70 is preferably prepared from flexible materials such as silicone and thermoplastic elastomers, and a first convex rib 76 and a second convex rib 75 extending in a circumferential direction are arranged on an outer wall surface of the support 70. In an implementation, the first convex rib 76 and the second convex rib 75 are configured to seal a gap between the support 70 and the main housing 10.

In terms of design of an airflow path during inhalation, in the implementation shown in FIG. 3, a second air inlet 77 toward the end cap 20 is further arranged on the support 70, which is configured for external air entering the atomizer through the first air inlet 22 to enter the atomization chamber in the support 70. Then the external air carries the aerosol in the atomization chamber and is outputted though the vapor conveying tube 11 running through the first plug-in hole 51.

Further, as shown in FIG. 7 and FIG. 8, a plurality of convex edges 73 extending longitudinally are arranged on an inner wall of the support 70, and a capillary trench 731 that can adsorb and retain an aerosol condensate in the atomization chamber is formed between the convex edges 73. In an implementation, each of the convex edges 73 has a width in a range of about 0.5 mm to 1.5 mm, and the capillary trench 731 has a width less than 2 mm.

Further referring to FIG. 7, FIG. 8, FIG. 9, FIG. 11, and FIG. 12, a first notch 111 is arranged on an air inlet end of the vapor output tube 11 facing away from the suction nozzle A. Preferably, two first notches 111 are arranged, which are arranged opposite to each other in a thickness direction of the main housing 10. To adapt to the first notch 111, a convex edge 74 at least partially extending into of the first notch 111 is arranged in the support 70. After assembly, surfaces on two sides of the convex edge 74 are not in contact with surfaces on two sides of the first notch 111, and a specific spacing is held between the convex edge 74 and the surfaces on the two sides of the first notch 111, as shown in FIG. 12. The spacing is controlled to be less than 2 mm to form a capillary channel enabling a capillary action between the convex edge and the first notch. The capillary force of the capillary channel adsorbs condensates in the vapor output tube 11 falling or flowing into the air inlet end, and guides the condensates into the atomization chamber of the support 70, as shown by an arrow R4 in FIG. 13, thereby preventing the condensates from aggregating into a liquid column in the vapor output tube 11 and alleviating or eliminating a problem that the condensates are inhaled.

As shown in FIG. 7 and FIG. 8, to ensure that the convex edge 74 can extend into the first notch 111 of the vapor output tube 11, a protrusion height of the convex edge 74 is greater than that of the convex edge 73, and a width thereof is the same as that of the convex edge 73. Further, in the preferred implementation shown in FIG. 8, the protrusion height of the convex edge 74 varies. Specifically, an upper end portion in a longitudinal direction has a larger protrusion height than other portions.

In an implementation shown in FIG. 9, a cross-sectional shape of the vapor output tube 11 is an ellipse. In addition, the ellipse has a long axis B1 which is the width direction of the main housing 10 and a short axis B2 which is the thickness direction of the main housing 10, so that the condensate in the vapor output tube 11 tends to aggregate at an end portion of the major axis B1 with a relatively large curvature. Moreover, a second notch 112 close to at least one side in the width direction of the main housing 10 is arranged on an end portion of the vapor output tube 11. The second notch 112 forms a hollow space on the end portion of the major axis B1 with the relatively large curvature, so that condensates are prevented from aggregating herein and thereby aggregating at a position close to the first notch 111, which facilitates guidance of the condensates into the atomization chamber with the cooperation of the convex edge 74.

In the preferred implementation shown in FIG. 9, the first notch 111 has a larger width than the second notch 112. In an implementation, the width of the first notch 111 is about 2.4 mm, and the width of the second notch 112 is about 1 mm.

In an implementation shown in FIG. 11 and FIG. 12, the vapor output tube 11 has an oblique tube wall 113 close to the first notch 111. During use, as shown by the arrow R4 in FIG. 13, the aerosol condensate on an inner wall of the vapor output tube 11 is directed toward the first notch 111 by the oblique tube wall 113, then is adsorbed by the capillary channel formed between the convex edge 74 and the first notch 111 to the surface of the convex edge 74, and then flows downward into the atomization chamber in the support 70. In addition, it may be learned from both FIG. 5 and FIG. 12 that the convex edge 74 is not in contact with the surface of the first notch 111.

During use, as the liquid substrate is consumed, a negative pressure in the liquid storage cavity 12 gradually increases, which prevents the liquid substrate from smoothly leaving the liquid storage cavity 12 and from being smoothly delivered to the second liquid guide element 30. Therefore, an air pressure equilibration channel configured to supplement the liquid storage cavity 12 with air is arranged in the atomizer 100, which alleviates the negative pressure in the liquid storage cavity 12 to ensure smooth delivery of the liquid substrate. Specifically, referring to FIG. 7 to FIG. 10, the air pressure equilibration channel includes two channel portions in successive communication, that is, a first channel portion shown by an arrow R31 in FIG. 7 and FIG. 8 and a second channel portion shown by an arrow R32 in FIG. 10; Specifically,

• • at least one convex edge 14 is arranged on each of inner walls on two sides of the main housing 10 close to the width direction. Specifically, in FIG. 9 and FIG. 10, two convex edges 14 are arranged, and a specific spacing 141 is reserved between the two convex edges. To adapt to the spacing 141, in terms of structural arrangement, a peripheral side wall of the hard first liquid guide element 50 in the FIG. 3 has a flat and straight portion 52. After assembly, the flat and straight portion 52 abuts against the convex edge 14 to define the spacing and prevent the spacing 141 from being filled or blocked.

Further, an air groove 79 is arranged on a surface of the support 70 close to the first liquid guide element 50. In FIG. 7 and FIG. 8, the air groove 79 is located on two end portions on two sides of the support 70 close to the width direction. One side of the air groove 79 is in communication with a space in the support 70, that is, the atomization chamber, and an other side is in communication with the spacing 141, so that air in the atomization chamber can pass through the air groove 79 in the arrow direction R31 in FIG. 7 and FIG. 8, and then enter the liquid storage cavity 12 of the main housing 10 through the spacing 141 in the arrow direction R32 in the FIG. 10, to alleviate or eliminate the negative pressure in the liquid storage cavity 12.

In the preferred implementation shown in FIG. 8 and FIG. 9, a plurality of convex edges 13 are further arranged in the main housing 10, which are configured to abut against and press the first liquid guide element 50 from the upper surface of the first liquid guide element 50 after assembly.

Similarly, a capillary trench 711 extending in the thickness direction of the main housing is arranged on a wall of the first holding recess 71. The capillary trench 711 is located on the heating element 40 or two sides of a part of the first portion 31 surrounded by the heating element 40 in the width direction of the main housing 10. Finally, a gap or a space is formed between a part close to an atomization area heated by the heating element 40 and the first portion 31, which is configured to buffer the liquid substrate to prevent the liquid substrate 10 from flowing or being delivered directly and quickly to the part surrounded by the heating element 40, to alleviate splattering of the liquid substrate.

Referring to FIG. 7 and FIG. 8, an inner wall of the second holding recess 72 has a capillary trench 722 extending from an upper end to the capillary trench 711 in the longitudinal direction. The capillary trench 722 is configured to adsorb and buffer a liquid substrate seeping out through the second channel portion of the air pressure equilibration channel during air compensation, and can regulate efficiency of a liquid substrate flowing on a surface of the second portion 32. It may be learned from FIG. 8 that an upper end of the capillary trench 722 is in communication with the air groove 79. In this case, when the liquid substrate in the liquid storage cavity 12 seeps into the air groove 79 in a direction opposite to the direction shown by the arrow R32, the liquid substrate can be adsorbed into the capillary trench 722 and flow downward, as shown by the arrow R4 in FIG. 13.

In this implementation, an extension length of the capillary trench 722 is greater than that of the second portion 32. The capillary trench at least partially extends into the first holding recess 71 along the air groove 79, and at least partially is adjacent to the surface of the first portion 31. Therefore, during use, the capillary trench 722 can directly supply the liquid substrate to the first portion 31.

Further referring to in FIG. 7 and FIG. 8, the air groove 79 is defined by protrusions 721 on the upper end of the support 70 surrounding the second holding recess 72. As shown in the figure, at least part of the air groove 79 is curved and surrounds the protrusions 721 of the second holding recess 72.

FIG. 14 is a schematic diagram of the heating element 40 from perspective. The heating element includes a first electrical pin 41 and a second electrical pin 42 arranged opposite to each other in the length direction and a first spiral coil 410 and a second spiral coil 420 extending between the first electrical pin 41 and the second electrical pin 42. In an implementation, the first spiral coil 410 and the second spiral coil 420 are simultaneously powered by the first electrical pin 41 and the second electrical pin 42, and are connected in parallel. Structurally, the first spiral coil 410 and the second spiral coil 420 are arranged snugly side by side. In an optional implementation, the first spiral coil 410 and the second spiral coil 420 each have about 3 to 10 turns or windings and an extension length in a range of about 4 mm to 7 mm. In FIG. 13, the first spiral coil and the second spiral coil each have 5 turns or windings and a design length of 6.5 mm.

According to FIG. 14, the first spiral coil 410 and the second spiral coil 420 are not arranged in an overlapping manner in a radial direction, and are arranged in parallel or staggered with respect to each other in an axial direction. At least the first spiral coil and the second spiral coil are at different positions relative to the first portion 31 in an extension direction of the first portion 31 after assembly, and therefore have higher contact area heating efficiency with the first portion 31.

A wire material used for the first electrical pin 41 and the second electrical pin 42 has a larger diameter than a wire material used for the first spiral coil 410 and the second spiral coil 420. In other words, the first electrical pin 41 and the second electrical pin 42 each are prepared by using a relatively thick wire, and the first spiral coil 410 and the second spiral coil 420 each are prepared by using a relatively thin wire to facilitate connection of two ends of the first spiral coil and the second spiral coil to the first electrical pin 41 and the second electrical pin 42. In a specific implementation, the first electrical pin 41 and the second electrical pin 42 each are prepared by using a wire with a diameter of about 0.25 mm, and the first spiral coil 410 and the second spiral coil 420 each are prepared by using a wire with a diameter of 0.15 mm.

In an optional implementation, the first spiral coil 410 and the second spiral coil 420 each are prepared by using suitable resistive metal or alloy, such as aludirome or nichrome, which have a relatively large temperature coefficient of resistance. The first electrical pin 41 and the second electrical pin 42 each serve as an electrical pin, and are prepared by using metal or alloy with relatively high conductivity and low resistivity, such as gold, silver, or copper, or each are an elongated pin prepared by forming a metal coating on an outer surface of a filamentous substrate.

Further referring to FIG. 14, the first electrical pin 41 includes an annular support portion 411 and an electrical connection portion 412.

The annular support portion 411 is connected to the first spiral coil 410 and the second spiral coil 420, and sizes of spirals, such as outer diameters or inner diameters of the annular support portion, the first spiral coil, and the second spiral coil are substantially the same. In this case, during assembly, the annular support portion 411 can surround the first portion 31 of the second liquid guide element 30, so that the annular support portion 411 of the first electrical pin 41 supports the first portion 31 of the second liquid guide element 30 after assembly. The electrical connection portion 412 runs to outside of the support 70 to abut against or to be welded with the second electrical contact 21.

Further referring to FIG. 13, the first spiral coil 410 and the second spiral coil 420 of the heating element 40 are not in contact with the inner wall of the support 70 and/or the wall of the first holding recess 71 after assembly. Instead, the first spiral coil and the second spiral coil are held on the inner wall of the support 70 and/or the wall of the first holding recess 71 through the annular support portion 411 of the first electrical pin 41, thereby supporting the heating element 40. During operation, the first electrical pin 41 and the second electrical pin 42 have a lower temperature than the first spiral coil 410 and the second spiral coil 420, thereby avoiding thermal damage to the support 70.

Further referring to FIG. 3 and FIG. 13, the electrical connection portion 412 of the first electrical pin 41 is in a shape of a bent hook. In the assembled structure, the support 70 has a lead hole 781 running from the inner wall to a surface toward the end cap 20 and a contact hole 782 arranged toward the end cap 20 and configured to accommodate at least part of the second electrical contact 21. After assembly, the electrical connection portion 412 runs through the lead hole 781 and then extends or bends into the contact hole 782 to form electrical connection to the second electrical contact 21.

The second electrical pin 42 has the same construction, connection, and assembly as the first electrical pin 41.

In an optional implementation, the heating element 40 has an inner diameter in a range of about 2 mm to 4 mm, and preferably, in a range of 2.3 mm to 2.6 mm. The heating element 40 has a resistance in a range of about 0.5 ohms to 2 ohms.

In a more preferred implementation, a spiral coil portion formed by the first spiral coil 410 and the second spiral coil 420 of the heating element 40 side by side has a length in a range of about 4.2 mm to 5 mm. In FIG. 14, 5 turns or windings are arranged, and each turn or winding has a length of about 1 mm.

Further, FIG. 15 to FIG. 17 are respectively a schematic exploded view and a schematic sectional view of an atomizer 100a according to another embodiment. The atomizer 100a includes a main housing 10a, a second liquid guide element 30a, a heating element 40a, a support 70a, an end cap 20a, and a second electrical contact 21a.

The main housing 10a has arranged therein a vapor output tube 11a extending in a longitudinal direction and a liquid storage cavity 12a defined by the vapor output tube 11a and an inner wall of the main housing 10a.

The second liquid guide element 30a has a first portion 31a extending in a width direction of the main housing 10a and a second portion 32a extending in a longitudinal direction of the main housing 10a from the first portion 31a. The second portion 32a is in fluid communication with the liquid storage cavity 12a through a first liquid guide element 50a in a shape of a sheet or a block. The first liquid guide element 50a is prepared from oriented fibers and is in a hard form. The second liquid guide element 30a is a rigid porous body, for example, a porous ceramic body.

The heating element 40a is formed on the first portion 31 to heat at least part of a liquid substrate in the first portion 31a to generate an aerosol.

The support 70a is in a shape of a hollow cup or cylinder. An interior thereof is configured to hold the second liquid guide element 30a and define an atomization chamber surrounding the first portion 31a. The aerosol generated by the heating element 40a through heating is released into the atomization chamber and then outputted to the vapor output tube 11a. In addition, an upper end of the support 70a close to the liquid storage cavity 12a supports the first liquid guide element 50a.

The end cap 20a is configured to seal an open end of the main housing 10a, and has a second electrical contact 21a and a first air inlet 22a arranged thereon.

The second electrical contact 21a runs through a contact hole 78a on the support 70a through the end cap 20a to abut against the heating element 40a, and is configured to supply power to the heating element 40a.

Further referring to FIG. 18 and FIG. 19, the second liquid guide element 30a prepared from the porous ceramic body is substantially in a shape of U. The second liquid guide element 30a has a length size d1 of about 13 mm, a width size d2 of about 3 mm, and a height size d4 of about 5 mm. A length size d11 of the first portion 31a of the second liquid guide element 30a is about 7 mm. In other words, a size of a U-shaped opening is 7 mm. A height size d41 of the first portion 31a is about 2 mm. A length size d3 of the second portion 32a of the second liquid guide element 30a is about is about 3 mm.

An outer surface 310 of the first portion 31a of the second liquid guide element 30a facing away from the U-shaped opening is constructed substantially in a shape of a plane, and the outer surface 310 is configured as an atomization surface 310a configured to atomize the liquid substrate. The heating element 40a is constructed to be coupled to the atomization surface 310a. In an implementation, a liquid substrate absorbed by the second portion 32a is delivered to the atomization surface 310a, and is heated and atomized by the heating element 40 to generate an aerosol. The aerosol is released into the atomization chamber in the support 70a through the atomization surface 310a, and then is outputted with an inhalable airflow.

In FIG. 19, the heating element 40a has a conductive portion 41a located on each of two ends and a resistance heating trajectory portion 42a extending zigzag in a length direction of the first portion 31a. During use, the second electrical contact 21a abuts against the conductive portion 41a to supply power to the resistance heating trajectory portion 42a. In some implementations, the resistance heating trajectory portion 42a is a trajectory formed through printing, etching, printing, or the like. In some other implementations, the resistance heating trajectory portion 42a is a patterned trajectory. In FIG. 19, an extension length d5 of the heating element 40a on the atomization surface 310a is in a range of about 9 mm to 10 mm.

Based on the implementation, the second liquid guide element 30a is a rigid porous body. After assembly, a front end of the second portion 32a of the second liquid guide element 30a abuts against a lower surface of the first liquid guide element 50a to support the first liquid guide element 50a and to receive the liquid substrate from the first liquid guide element 50a.

Further, FIG. 20 to FIG. 21 are schematic structural diagrams of an atomizer 100b according to another embodiment. In the atomizer 100b, a hole 53b is arranged to run through a first liquid guide element 50b in a thickness direction. A second portion 32b of a second liquid guide element 30b runs through the hole 53b from a lower surface of the first liquid guide element 50b, and is exposed from a liquid storage cavity 12b to directly absorb a liquid substrate in the liquid storage cavity 12b.

Specifically, the second portion 32b of the second liquid guide element 30b has an insertion segment 321b with a relatively small outer diameter, and is in communication with the liquid storage cavity 12b after the insertion segment 321b runs through the hole 53b of the first liquid guide element 50b. In addition, a sectional width or length of the insertion segment 321b is 2 mm. In an implementation, a step is formed at a joint of the insertion segment 321b and the second portion 32b. The step abuts against the lower surface of the first liquid guide element 50b, to support and hold the first liquid guide element 50b.

FIG. 22 is a schematic structural diagram of a second liquid guide element 30f that may be used for the atomizer 100b according to another embodiment. In this embodiment, an upper surface of a first portion 31f of the second liquid guide element 30f is constructed as an atomization surface 310f. A heating element 40f is formed on the atomization surface 310f defined by the upper surface. In addition, after assembly, the heating element 40f and/or the atomization surface 310f is toward the first liquid guide element 50b.

In a corresponding implementation, the heating element 40f is formed on the atomization surface 310f through printing, deposition, etching, mounting, or the like. A conductive portion 41f of the heating element 40f is connected to the second electrical contact 21b through an elastic piece, lead welding, or the like to supply power to the heating element 40f.

Alternatively, in other variable implementations, the second liquid guide element 30f may further have another shape or construction, for example, an L shape.

FIG. 23 to FIG. 25 are schematic structural diagrams of an atomizer 100c according to another embodiment. In this embodiment, the atomizer 100c includes a main housing 10c, an end cap 20c, and a first liquid guide element 50c.

The main housing 10c has a suction nozzle A configured for inhalation on a proximal end thereof. The main housing 10c has a vapor output tube 11c and a liquid storage cavity 12c defined by the vapor output tube 11c therein. The liquid storage cavity 12c has an opening toward a distal end.

The end cap 20c is coupled to an open space at the distal end of the main housing 10c, to define an outer housing of the atomizer 100c with the main housing 10c.

The first liquid guide element 50c is in a shape of a sheet or a block perpendicular to the main housing 10c, which crosses and covers the opening of the liquid storage cavity 12c after assembly, to seal the liquid storage cavity 12c, so that a liquid substrate in the liquid storage cavity 12c may substantially leave through only the first liquid guide element 50c. In a preferred implementation, the first liquid guide element 50c has a profile substantially in a shape of an ellipse. In a preferred implementation, the first liquid guide element 50c is made of the hard organic cotton for making the first liquid guide element 50 in the above embodiments.

The atomizer 100c further includes a second liquid guide element 30c, a heating element 40c, and a third liquid guide element 80c.

As shown in FIG. 24, the second liquid guide element 30c overall has a first side wall 31c and a second side wall 32c opposite to each other in a thickness direction and a notch located between the first side wall 31c and the second side wall 32c. The second liquid guide element 30c further has an atomization surface 310c facing away from the first side wall 31c and/or the second side wall 32c and/or the notch in a longitudinal direction. In the preferred implementation, the second liquid guide element 30c is rigid, and is made of the porous body in the above embodiments, for example, a porous ceramic body.

The heating element 40c is coupled to the atomization surface 310c to heat at least part of a liquid substrate in the second liquid guide element 30c to generate an aerosol and release the aerosol through the atomization surface 310c.

The third liquid guide element 80c is configured to deliver the liquid substrate between the first liquid guide element 50c and the second liquid guide element 30c, so that a liquid substrate absorbed by the first liquid guide element 50c is delivered to the second liquid guide element 30c. In a preferred implementation, the third liquid guide element 80c is flexible, for example, is a sponge. As shown in FIG. 26, after assembly, at least part of the third liquid guide element 80c is accommodated and held within a notch 33c of the second liquid guide element 30c, and is in contact with both the first liquid guide element 50c and the second liquid guide element 30c, to form fluid communication with the first liquid guide element and the second liquid guide element, so as to deliver the liquid substrate between the first liquid guide element and the second liquid guide element. As shown in the figure, the third liquid guide element 80c is substantially in a shape of a block, a column, or a strip, an upper end thereof abuts against the first liquid guide element 50c, and a lower end abuts against the second liquid guide element 30c, to implement liquid delivery between the first liquid guide element and the second liquid guide element.

In some variable embodiments, for example, a second liquid guide element 30e shown in FIG. 30. An upper surface of the second liquid guide element 30e has a groove 33e, and the groove 33e accommodates and holds at least part of the third liquid guide element 80c. In addition, after assembly, the third liquid guide element 80c is in contact with or abuts against a surface of the second liquid guide element 30e defining the groove 33e to form fluid communication, thereby delivering the liquid substrate.

Alternatively, in other variable implementations, an accommodating or supporting structure such as a clamping port, a holding cavity, or a recess is formed on the second liquid guide element 30c/30e, to accommodate at least part of the third liquid guide element 80c and support or hold the third liquid guide element 80c.

The atomizer further includes a support 70c configured to accommodate and hold the second liquid guide element 30c and the third liquid guide element 80c and define an atomization chamber for aerosol release with at least part of the atomization surface 310c; In addition, on the support 70c, an electrode hole 78c for a second electrical contact 21c to run through so as to abut against the heating element 40c is further arranged, and a second air inlet 77c for external air entering the atomizer through a first air inlet 22c to enter the atomization chamber is further arranged. In addition, the support 70c further abuts against a lower surface of the first liquid guide element 50c, to support and hold at least part of the first liquid guide element 50c. Moreover, after assembly, the vapor output tube 11c runs through a first plug-in hole 51d on the first liquid guide element 50c to be in fluid communication with the atomization chamber in the support 70c, so as to output an aerosol.

Further referring to FIG. 25 and FIG. 26, after assembly, the third liquid guide element 80c has an exposed portion 81c exposed from the notch of the second liquid guide element 30c in a length direction of the second liquid guide element 30c. After assembly, the exposed portion 81c is supported by the support 70c.

In the atomizer 100c in this embodiment, for an airflow structure or path, further refer to an arrow R2 in FIG. 27. After assembly, in the thickness direction, a gap exists between the first side wall 31c of the second liquid guide element 30c and the inner wall of the support 70c and between the second side wall 32c of the second liquid guide element 30c and the inner wall of the support 70c, to form a channel 71c. During inhalation, after air enters the atomization chamber defined by the atomization surface 310c through the second air inlet 77c, the air carries the aerosol and crosses the second liquid guide element 30c through the channel 71c, and then is outputted to the vapor output tube 11c at a central portion close to the vapor output tube 11c.

As shown in FIG. 24, FIG. 27, and FIG. 31, a retaining protrusion 72c configured to fix and hold the second liquid guide element 30c is arranged on the inner wall of the support 70c. After assembly, an upper end surface of the first side wall 31c and/or the second side wall 32c of the second liquid guide element 30c abuts against the retaining protrusion 72c, so that the second liquid guide element 30c is stably held in the support 70c.

Further referring to FIG. 27, to alleviate a negative pressure in the liquid storage cavity 12c, the support 70c has grooves 79c on two sides in a width direction, which are in airflow communication with a space in the support 70c, so that external air entering the atomization chamber can enter the grooves 79c according to the arrow R3, and then enter the liquid storage cavity 12c through a gap between a flat and straight portion 52c on a peripheral side wall of the first liquid guide element 50c and the main housing 10c.

Further referring to FIG. 28 and FIG. 29, in this embodiment, the structure of the second liquid guide element 30c further includes a substrate portion 34c and a connection portion 35c.

The substrate portion 34c is located on a lower end side of the second liquid guide element 30c in the longitudinal direction, and extends between the first side wall 31c and the second side wall 32c. In addition, an extension length of the substrate portion 34c in the length direction of the second liquid guide element 30c is the same as an extension length of the first side wall 31c and/or the second side wall 32c. As shown in the figure, a lower surface of the substrate portion 34c is used as the atomization surface 310c, and a lower end of the third liquid guide element 80c abuts against an upper surface of the substrate portion 34c.

The connection portion 35c is located on an upper end side of the second liquid guide element 30c in the longitudinal direction, and is arranged close to a central portion of the second liquid guide element 30c. Similarly, the connection portion 35c extends between the first side wall 31c and the second side wall 32c. In addition, an extension length of the connection portion 35c in the length direction of the second liquid guide element 30c is less than the extension length of the first side wall 31c and/or the second side wall 32c and/or the substrate portion 34c. In this way, a region not covered by the connection portion 35c forms the notch 33c.

Moreover, a space 36c extending in the length direction is defined between the connection portion 35c and the substrate portion 34c. After assembly, the space 36c is surrounded or shielded by the third liquid guide element 80c. In this way, the space 36c may be configured to receive or buffer a liquid substrate seeping out through a surface of the third liquid guide element 80c, to adjust an amount or efficiency of supply of the liquid substrate to the atomization surface 310c.

Further, as shown in FIG. 29, after assembly, at least part of the connection portion 35c of the second liquid guide element 30c is opposite to the first plug-in hole 51c of the first liquid guide element 50c in the longitudinal direction of the main housing 10c. Therefore, in an implementation, the connection portion 35c may be configured to receive an aerosol condensate falling from the vapor output tube 11c.

Further, FIG. 31 is a schematic sectional view of the support 70c from a perspective. The support 70c has a first step 73c and a second step 74c provided or formed therein.

The first step 73c is configured to support the second liquid guide element 30c. Specifically, after assembly, at least part on an end side in a length direction of the atomization surface 310c of the second liquid guide element 30c abuts against the first step 73c. In addition, the electrode hole 78c extends or runs into the first step 73c, so that the second electrical contact 21c can abut against a conductive portion of the heating element 40c on the atomization surface 310c after running through the electrode hole 78c, thereby supplying power to the heating element 40c.

The second step 74c is configured to support the exposed portion 81c of the third liquid guide element 80c protruding from the notch 33c of the second liquid guide element 30c.

It may be learned from FIG. 31 that, the first step 73c and the second step 74c have different heights in the longitudinal direction. The first step 73c and the second step 74c are arranged on two sides of an inner surface of the support 70c close to the width direction.

Further referring to FIG. 31, the first step 73c and an inner bottom wall 76c of the support 70c have different heights in the longitudinal direction. In this case, after assembly, a spacing 340c is formed between the atomization surface 310c of the second liquid guide element 30c and the inner bottom wall 76c of the support 70c, which forms the atomization chamber configured to accommodate the aerosol. In this embodiment, as shown in FIG. 31, a capillary trench 75c is arranged on a side wall of the spacing 340c and on the inner bottom wall 76c. The capillary trench 75c has a width in a range of about 0.5 mm to 2 mm to adsorb an aerosol condensate in the atomization chamber.

FIG. 32 to FIG. 35 are schematic structural diagrams of an atomizer 100d according to another embodiment. In this embodiment, the atomizer 100d includes a main housing 10d, an end cap 20d, a first liquid guide element 50d, a second liquid guide element 30d, a heating element 40d, and a third liquid guide element 80d.

The main housing 10d has a suction nozzle A configured for inhalation on a proximal end thereof. The main housing 10d has a vapor output tube 11d and a liquid storage cavity 12d defined by the vapor output tube 11d therein. The liquid storage cavity 12d has an opening toward a distal end.

The end cap 20d is coupled to an open space at the distal end of the main housing 10d, to define an outer housing of the atomizer 100d with the main housing 10d.

The first liquid guide element 50d is in a shape of a sheet or a block perpendicular to the main housing 10d. In a preferred implementation, the first liquid guide element 50d has a profile substantially in a shape of an ellipse. In a preferred implementation, the first liquid guide element 50d is made of the hard organic cotton for making the first liquid guide element 50 in the above embodiments.

Referring to FIG. 35, the second liquid guide element 30d is overall in a shape of a sheet or a plate perpendicular to a longitudinal direction of the main housing 10d. An upper surface thereof in a thickness direction is in fluid communication with the first liquid guide element 50d to receive a liquid substrate. A lower surface thereof in the thickness direction is constructed as an atomization surface 310d. In the preferred implementation, the second liquid guide element 30d is rigid, and is made of the porous body in the above embodiments, for example, a porous ceramic body.

The heating element 40d is formed on the atomization surface 310d, and is configured to heat at least part of a liquid substrate in the second liquid guide element 30d to generate an aerosol.

The third liquid guide element 80d is positioned between the first liquid guide element 50d and the second liquid guide element 30d in the longitudinal direction of the main housing 10d, to deliver the liquid substrate between the first liquid guide element and the second liquid guide element.

Further referring to FIG. 33 and FIG. 35, the third liquid guide element 80d is a substantially in a shape of U, and includes a third portion 81d in a direction perpendicular to the longitudinal direction of the main housing 10d and a fourth portion 82d extending from the third portion 81d toward the first liquid guide element 50d. After assembly, the third portion 81d is in contact with and abuts against an upper surface of the second liquid guide element 30d to form fluid communication with the second liquid guide element 30d, and the fourth portion 82d extends to and abuts against a lower surface of the first liquid guide element 50d to form fluid communication with the first liquid guide element 50d.

In a preferred implementation shown in FIG. 34 and FIG. 35, an extension length of the third portion 81d is greater than a length of the second liquid guide element 30d. Therefore, after assembly, at least part of the third portion 81d protrudes relative to the second liquid guide element 30d, and protruding portion abuts against a support 70d and is at least partially supported by the support 70d. Similarly, the third portion 81d further abuts against the second liquid guide element 30d to be at least partially supported by the second liquid guide element 30d.

Further referring to FIG. 36, two side walls of the support 70d in a thickness direction each have a window 76d extending in the longitudinal direction. After assembly, an output channel is defined between the window 76d and an inner wall of the main housing 10d. Specifically, an extension length of the window 76d in the longitudinal direction covers at least an atomization chamber 340d defined by the atomization surface 310d of the second liquid guide element 30d, so that air entering the atomization chamber 340d through a second air inlet 77d can enter the output channel defined between the window 76d and the inner wall of the main housing 10d, and then crosses a U-shaped opening of the third liquid guide element 80d in a direction indicated by an arrow R2 in the figure to be outputted to the vapor output tube 11d.

Further referring to FIG. 36, in this embodiment, a groove 79d is arranged on a surface of the support 70d adjacent to the first liquid guide element 50d. The recess is in airflow communication with the output channel indicated by the arrow R2. Therefore, after assembly, when a negative pressure in the liquid storage cavity 12d exceeds a specific threshold range, the air can successively pass through a first channel portion defined by the groove 79d indicated by an arrow R31 in FIG. 36 and a second channel portion defined between a flat and straight portion 52d of a peripheral side wall of the first liquid guide element 50d and the inner wall of the main housing 10d, to enter the liquid storage cavity 12d to alleviate the negative pressure.

Further referring to FIG. 37, in this embodiment, the support 70d has a first boss 73d, a second boss 74d, an electrode hole 78d, and a capillary trench 75d therein.

The first boss 73d is configured to abut against the atomization surface 310d of the second liquid guide element 30d, to support the second liquid guide element 30d.

The second boss 74d is configured to abut against a part of the third liquid guide element 80d protruding from or exposed from the second liquid guide element 30d, to support the third liquid guide element 80d.

The electrode hole 78d is configured for a second electrical contact 21d to run through to abut against the atomization surface 310d, so as to supply power to the heating element.

The capillary trench 75d is formed on an inner bottom wall of the support 70d and on a surface of a space between the first boss 73d and the inner bottom wall, to adsorb an aerosol condensate in the atomization chamber.

Further, FIG. 38 to FIG. 40 are schematic diagrams of an atomizer 100e according to another embodiment. In this embodiment, the atomizer 100e includes a main housing 10e, an end cap 20e, a second electrical contact 22e, a first liquid guide element 50e, a second liquid guide element 30e, a heating element 40e, a third liquid guide element 80e, and a support 70e.

The main housing 10e has a vapor output tube 11e and a liquid storage cavity 12e defined by the vapor output tube 11e therein. The liquid storage cavity 12d has an opening toward a distal end.

The end cap 20e is engaged on an open space at the distal end of the main housing 10e, to define an outer housing of the atomizer 100e with the main housing 10e. The second electrical contact 22e runs into the atomizer 100e from outside of the end cap 20e.

The first liquid guide element 50e is in a shape of a sheet perpendicular to the main housing 10e. The first liquid guide element 50e is prepared by using the hard organic cotton described in the above embodiments.

The second liquid guide element 30e is rigid, and is made of the porous body in the above embodiments, for example, a porous ceramic body. The second liquid guide element 30e is toward a proximal end of the atomizer 100e and/or an atomization surface 310e of the vapor output tube 11e. The atomization surface 310e is a flat plane.

The heating element 40e is formed on the atomization surface 310e, and is configured to heat at least part of a liquid substrate in the second liquid guide element 30e to generate an aerosol.

The third liquid guide element 80e is configured to deliver the liquid substrate between the first liquid guide element 50e and the second liquid guide element 30e. The third liquid guide element 80e is made of flexible liquid guide fibers, for example, a sponge, and cotton fibers. A rigidity of the first liquid guide element 50e is less than that of the second liquid guide element 30e and greater than that of the third liquid guide element 80e.

The support 70e abuts against at least part of a lower surface of the first liquid guide element 50e to support the first liquid guide element 50e. The support 70e accommodates and holds at least part of the second liquid guide element 30e and the third liquid guide element 80e. In addition, at least part of an internal space of the support 70e and the atomization surface 310e define an atomization chamber 340e configured for aerosol release. Specifically, as shown in FIG. 40, after assembly, a part of a space formed between the atomization surface 310e and the first liquid guide element 50e forms the atomization chamber 340e. An air channel configured for air to enter the liquid storage cavity 12e through the atomization chamber 340e may be defined between the support 70e and the first liquid guide element 50e, to equilibrate a negative pressure inside the liquid storage cavity 12e. A second air inlet 78e in communication with a first air inlet 22e on the end cap 20e is arranged on the support 70e. In addition, a gap is retained between an inner side wall of the support 70e in a thickness direction and the second liquid guide element 30e, so that air entering the atomizer through the second air inlet 78e crosses the second liquid guide element 30e and then enters the atomization chamber 340e.

Similar to the support 70d in the above implementation, the support 70e has a first step and a second step with different heights, which respectively support at least part of the second liquid guide element 30e and at least part of the third liquid guide element 80e.

Further referring to FIG. 41 to FIG. 44, after assembly, the second liquid guide element 30e has a first side wall 31e, a second side wall 32e, an upper top wall 34e, and a lower bottom wall 35e.

The first side wall 31e and the second side wall 32e are opposite to each other. The upper top wall 34e is close to the proximal end of the atomizer 100e and/or the vapor output tube 11e, and an upper surface of the upper top wall 34e toward the proximal end of the atomizer 100e and/or the vapor output tube 11e is used as the atomization surface 310e.

The lower bottom wall 35e faces away from the upper top wall 34e. A length of the lower bottom wall 35e is less than an extension length of the second liquid guide element 30e.

A liquid channel 33e is defined between the first side wall 31e and the second side wall 32e or between the upper top wall 34e and the lower bottom wall 35e, which runs through the second liquid guide element 30e in a length direction of the second liquid guide element 30e.

Further referring to FIG. 42, a notch 351e is defined between two side ends of the lower bottom wall 35e in the length direction of the second liquid guide element 30e. The notch 351e is in communication with the liquid channel 33e. The notch 351e may extend into the liquid channel 33e.

The third liquid guide element 80e includes a first liquid guide segment 81e, a second liquid guide segment 82e, and a third liquid guide segment 83e.

The first liquid guide segment 81e substantially extends in a width direction of the atomizer 100e, and abuts against the lower surface of the first liquid guide element 50e after assembly. In this way, a liquid substrate in the first liquid guide element 50e can be absorbed through the first liquid guide segment 81e.

The second liquid guide segment 82e extending in a longitudinal direction of the atomizer 100e, and abuts or is in contact with at least part of the upper top wall 34e of the second liquid guide element 30e, to directly deliver the liquid substrate to the upper top wall 34e of the second liquid guide element 30e.

The third liquid guide segment 83e substantially extends in the width direction of the atomizer 100e, and at least partially extends into the liquid channel 33e of the second liquid guide element 30e. During use, a part of the liquid substrate is delivered to the liquid channel 33e through the second liquid guide segment 82e and the third liquid guide segment 83e successively, and then is absorbed by the second liquid guide element 30e.

The flexible third liquid guide segment 83e expands after absorbing the liquid substrate, and therefore abuts against the upper top wall 34e of the second liquid guide element 30e, thereby delivering the liquid substrate to the upper top wall 34e, as shown by an arrow R1 in FIG. 43.

Further referring to FIG. 43, the third liquid guide segment 83e is 6 mm, and extends into the liquid channel 33e from an outer side in the length direction of the second liquid guide element 30e.

The second liquid guide segment 82e has a length of about 8 mm, and is located outside the second liquid guide element 30e.

The first liquid guide segment 81e has a length of about 4 mm, and substantially completely abuts against the first liquid guide element 50e. An extension length of the third liquid guide segment 83e is greater than that of the first liquid guide segment 81e.

The first liquid guide segment 81e and the third liquid guide segment 83e are located on a same side of the second liquid guide segment 82e, so that the third liquid guide element 80e is substantially in a shape of C.

After assembly, the third liquid guide element 80e is substantially supported by the rigid second liquid guide element 30e. In addition, the liquid channel 33e is inserted into or extended into the third liquid guide segment 83e to be stably held on the second liquid guide element 30e.

Referring to FIG. 39 and FIG. 43, the atomizer 100e further includes a sealing element 90e.

In the figure, the sealing element 90e is substantially in a shape of a sheet. Preferably, the sealing element 90e is prepared from flexible materials such as rubber or silicone. A length of the sealing element 90e is substantially equal to a length of the second liquid guide element 30e. During assembly, the sealing element 90e is located on a side of the second liquid guide element 30e facing away from the atomization surface 310e. The sealing element 90e abuts against the lower bottom wall 35e of the second liquid guide element 30e and the third liquid guide element the third liquid guide segment 83e, to cover or shield the lower bottom wall 35e of the second liquid guide element 30e and the third liquid guide segment 83e of the third liquid guide element 80e, so as to prevent the liquid substrates in the second liquid guide element and the third liquid guide element from seeping into the second air inlet 78e.

Further, in a preferred implementation of FIG. 44, the sealing element 90e has a relatively small thickness in a range of about 1 mm to 2 mm. The sealing element is overall in a form of a sheet or a gasket. In addition, a boss 91e is arranged on the sealing element 90e, which has a height in a range of about 1 mm to 2 mm. During assembly, the boss 91e avoids the lower bottom wall 35e. In addition, after assembly, as shown in FIG. 43, the boss 91e extends into the liquid channel 33e through the notch 351e, and abuts against the third liquid guide segment 83e of the third liquid guide element 80e.

As shown in the figure, an area of an upper surface of the third liquid guide segment 83e of the third liquid guide element 80e, that is, an area of abutment against and contact with the first liquid guide element 50e, is less than that of the atomization surface 310e of the second liquid guide element 30e.

In addition, as shown in FIG. 41, FIG. 43, and FIG. 44, the atomizer 100e further includes a conductive element 60e.

The conductive element 60e is configured to guide a current between a second electrical contact 21e and the heating element 40e. In a preferred implementation in the figure, the conductive element 60e is a bent conductive elastic piece, and is substantially thin. In some implementations, the conductive element 60e is prepared by using metal or alloy with low resistivity and high conductivity, such as gold, silver, or copper. Alternatively, in a more preferred implementation, the conductive element 60e is formed by bending a metal substrate in a shape of a sheet.

As shown in FIG. 44, at least part of a lower end of the conductive element 60e is bent to form a contact connection portion 63e. During assembly, the contact connection portion 63e is configured for the second electrical contact 21e to abut against to form connection. At least part of an upper end of the conductive element 60e is bent to form an elastic connection portion 61e electrically connected to the heating element 40e, and maintains stable conductive contact with the heating element 40e through elastic abutment.

In addition, after assembly, the contact connection portion 63e is attached to or abuts against a lower surface of the sealing element 90e. In addition, the sealing element 90e is substantially flat. In addition, at least part of the sealing element 90e prepared from the flexible or elastic material can provide an elastic force for the abutment between the contact connection portion 63e and the second electrical contact 21e, to ensure stable contact between the contact connection portion 63e and the second electrical contact 21e.

As shown in FIG. 44, the elastic connection portion 61e is in a shape of bent V or U, which facilitates abutment against and contact with the heating element 40e, thereby facilitating power supply.

The conductive element 60e further includes a main body portion 62e, which extends in a longitudinal direction. An extension length of the main body portion 62e is substantially equal to or slightly greater than a height of the second liquid guide element 30e. The main body portion is configured to connect the contact connection portion 63e and the elastic connection portion 61e. The contact connection portion 63e and the elastic connection portion 61e are located on a same side of the main body portion 62e, so that the conductive element 60e is in a shape of C and defines a clamping port 64e.

In the implementation shown in FIG. 44, the elastic connection portion 61e is suspended relative to the main body portion 62e. Alternatively, a suspended portion of the conductive element 60e relative to the main body portion 62e defines the elastic connection portion 61e.

Further, as shown in FIG. 41, two conductive elements 60e respectively clamp the second liquid guide element 30e from two sides in a width direction to achieve stable assembly.

Alternatively, further, FIG. 45 is a schematic diagram of a second liquid guide element 30g according to another variable embodiment. In this embodiment, the second liquid guide element 30g is prepared from a rigid porous ceramic body, is substantially constructed in a shape of a square tube, and has a liquid channel 33g running through a length direction.

Specifically, in FIG. 45, the second liquid guide element 30g has a first side wall 31g, a second side wall 32g, an upper top wall 34g, and a lower bottom wall 35g.

The first side wall 31g and the second side wall 32g are arranged opposite to each other.

The upper top wall 34g and the lower bottom wall 35g are arranged opposite to each other. The liquid channel 33g is defined between the first side wall 31g and the second side wall 32g and/or between the upper top wall 34g and the lower bottom wall 35g. In an implementation, an upper surface of the upper top wall 34g serves as an atomization surface 310g. A heating element 40g is formed on or coupled to the atomization surface 310g.

Similarly, in this embodiment, the second liquid guide element 30g cooperates with the above first liquid guide element 50e and third liquid guide element 80e to obtain a liquid substrate, and the atomization surface 310g outputs an aerosol toward the vapor output tube 11e

Similarly, during assembly, a gap between the lower bottom wall 35g of the second liquid guide element 30g and the support 70e is sealed through the sealing element 90e.

It should be noted that, the specification and the drawings of this application provide the preferred embodiments of this application, but this application is not limited to the embodiments described in this specification. Further, a person of ordinary skill in the art may make improvements or modifications according to the above descriptions, and all the improvements and modifications fall within the protection scope of the appended claims of this application.

Claims

1. An atomizer, comprising an outer housing, wherein the outer housing has arranged therein: a liquid storage cavity, configured to store a liquid substrate;a first liquid guide element, having a first surface close to the liquid storage cavity and a second surface facing away from the first surface, wherein the first surface is configured to be in fluid communication with the liquid storage cavity to absorb the liquid substrate in the liquid storage cavity;a second liquid guide element, in fluid communication with the second surface of the first liquid guide element to absorb a liquid substrate in the first liquid guide element, wherein the second liquid guide element has an atomization surface extending flatly; anda heating element, coupled to the atomization surface and configured to heat at least part of a liquid substrate in the second liquid guide element to generate an aerosol.

2. (canceled)

3. (canceled)

4. (canceled)

5. The atomizer according to claim 1, wherein the second liquid guide element is arranged to be in contact with the second surface to be in fluid communication with the second surface.

6. The atomizer according to claim 5, wherein the second liquid guide element comprises a first portion extending in a direction perpendicular to a longitudinal direction of the outer housing and a second portion extending from the first portion toward the second surface, wherein the second portion is constructed to be in contact with the second surface, andthe atomization surface is located on the first portion.

7. The atomizer according to claim 6, wherein an extension length of the first portion is greater than an extension length of the second portion.

8. The atomizer according to claim 1, wherein the second liquid guide element is further constructed to abut against the second surface to support at least part of the first liquid guide element.

9. (canceled)

10. The atomizer according to claim 1, wherein a space is provided between the atomization surface of the second liquid guide element and the second surface of the first liquid guide element.

11. The atomizer according to claim 1, wherein the second liquid guide element is in direct or indirect contact with the second surface of the first liquid guide element to absorb the liquid substrate in the first liquid guide element, and a contact area thereof is less than an area of the atomization surface.

12. The atomizer according to claim 1, further comprising: a third liquid guide element, positioned between the second surface of the first liquid guide element and the second liquid guide element, wherein the second liquid guide element is in fluid communication with the second surface through the third liquid guide element.

13. The atomizer according to claim 12, wherein the third liquid guide element is flexible.

14. The atomizer according to claim 12, wherein the first liquid guide element has a rigidity greater than that of the third liquid guide element and less than that of the second liquid guide element.

15. The atomizer according to claim 12, wherein the second liquid guide element is constructed to accommodate or support at least part of the third liquid guide element.

16. The atomizer according to claim 12, wherein the second liquid guide element has a notch, a groove, or a recess toward the first liquid guide element; and at least part of the third liquid guide element is accommodated or held in the notch, the groove, or the recess.

17. (canceled)

18. (canceled)

19. (canceled)

20. The atomizer according to claim 12, further comprising: a support, constructed to accommodate and hold at least part of the second liquid guide element and of the third liquid guide element; wherein the support comprises:a first step, configured to support at least part of the second liquid guide element; anda second step, configured to support at least part of the third liquid guide element, whereinthe first step and the second step have different heights in a longitudinal direction of the outer housing.

21. (canceled)

22. The atomizer according to claim 1, further comprising: a support, constructed to abut against the second surface to hold at least part of the first liquid guide element.

23. The atomizer according to claim 1, further comprising: an air channel, configured to provide a fluid path for air to cross the first liquid guide element in a longitudinal direction of the outer housing to enter the liquid storage cavity.

24. The atomizer according to claim 1, wherein the outer housing has arranged therein: an inner wall, configured to define the liquid storage cavity configured to store the liquid substrate, wherein the first liquid guide element has a peripheral side wall extending between the first surface and the second surface, and at least part of an air channel is formed between the peripheral side wall and the inner wall.

25. The atomizer according to claim 24, wherein a second convex edge extending in a longitudinal direction of the outer housing is arranged on the inner wall; and the peripheral side wall has a flat and straight portion adjacent to the inner wall, and the flat and straight portion abuts against the second convex edge, so that a gap is retained between the peripheral side wall and the inner wall to define at least part of the air channel.

26. (canceled)

27. (canceled)

28. An atomizer, configured to atomize a liquid substrate to generate an aerosol, and comprising an outer housing, wherein the outer housing has arranged therein: a liquid storage cavity, configured to store a liquid substrate;a porous ceramic body, comprising a first portion extending in a direction perpendicular to a longitudinal direction of the outer housing and a second portion extending from the first portion toward the liquid storage cavity, whereinthe second portion is constructed to be in fluid communication with the liquid storage cavity to absorb the liquid substrate; andthe first portion has an atomization surface extending flatly; anda heating element, coupled to the atomization surface and configured to heat at least part of a liquid substrate in a second liquid guide element to generate an aerosol.

29. The atomizer according to claim 28, further comprising: a first liquid guide element, constructed to extend in the direction perpendicular to the longitudinal direction of the outer housing and arranged between the liquid storage cavity and the second liquid guide element in the longitudinal direction of the outer housing, whereinthe second portion is constructed to at least partially run through the first liquid guide element in the longitudinal direction of the outer housing, and the second portion has an insertion segment with a cross sectional area less than those of other portions, and the insertion segment runs through the first liquid guide element to be in fluid communication with the liquid storage cavity.

30. (canceled)

31. (canceled)

32. An electronic atomization device, comprising an Page 9 atomizer configured to atomize a liquid substrate to generate an aerosol and a power supply assembly configured to supply power to the atomizer, wherein the atomizer comprises the atomizer according to claim 1.