Patent Description:
In the related art, an electronic atomization apparatus mainly includes an atomizer and a body assembly. The atomizer generally includes a liquid storage cavity and an atomization assembly, the liquid storage cavity is configured to store an atomizable medium, and the atomization assembly is configured to heat and atomize the atomizable medium, to form aerosol for an inhaler to inhale. The body assembly is configured to supply power to the atomizer.

When the atomizer atomizes the atomizable medium, the atomizable medium is consumed at a fast speed, and an air pressure of the liquid storage cavity is reduced, which results in poor liquid supply to the atomization assembly, in this way, the atomizable medium fails to be quickly replenished to the atomization assembly. As a result, the atomization assembly dry burns and is overheated, resulting in damage to the atomization assembly due to the poor liquid supply, a burnt smell, and harmful substances.

Chinese patent application <CIT> disclose an atomizer. The atomizer includes a main body mechanism and an atomization assembly. The main body mechanism is provided with a liquid storage cavity for storing liquid and an air intake channel connecting with the outside world. The atomization assembly includes an atomization core and a seal. The seal covers a part of the atomization core, and presses against the main body mechanism to seal the liquid storage chamber. The atomization core has a side peripheral surface. The outside air entering the air intake passage can pass between the main body mechanism and the atomizing assembly.

The present disclosure mainly provides an atomization core, an atomizer, and an electronic atomization apparatus, so as to resolve the problem of poor liquid supply in the electronic atomization apparatus.

In order to resolve the foregoing technical problem, the present disclosure adopts a technical solution as follows. An atomization core applied to an electronic atomization apparatus is provided and includes a porous matrix and a heating element; and the porous matrix includes: a liquid guide part that has a liquid absorbing surface for absorbing a liquid substrate and an atomization surface on which the heating element is disposed, where the liquid guide part is configured to conduct a liquid substrate on the side of the liquid absorbing surface to the atomization surface; and a vent part connected to the liquid guide part, where the vent part has a lyophobic ventilation characteristic, the vent part includes an air inlet surface and an air outlet surface, the air inlet surface is configured to contact gas, the air outlet surface is configured to be exposed to a liquid storage cavity, and the vent part is configured to conduct gas on the side of the air inlet surface to the air outlet surface.

In order to resolve the foregoing technical problem, the present disclosure adopts another technical solution as follows. An atomizer is provided and includes the foregoing atomization core. A liquid storage cavity and an atomization cavity are formed in the atomizer, a liquid absorbing surface and an air outlet surface are exposed to a liquid substrate in communication with the liquid storage cavity, an atomization surface is exposed to the atomization cavity, and an air inlet surface is exposed to gas in communication with the atomization cavity.

In order to resolve the foregoing technical problem, the present disclosure adopts another technical solution as follows. An electronic atomization apparatus is provided and includes a power supply assembly and the foregoing atomizer, where the power supply assembly is electrically connected to the atomizer, and is configured to supply power to the atomization core of the atomizer.

Beneficial effects of the present disclosure are as follows. Different from the related art, the present disclosure discloses an atomization core, an atomizer, and an electronic atomization apparatus. By defining that the porous matrix of the atomization core includes the liquid guide part and the vent part, and the vent part has a lyophobic ventilation characteristic, when the liquid guide part guides the liquid in the liquid storage cavity from the liquid absorbing surface to the atomization surface, the external gas may be guided to the liquid storage cavity by using the vent part, so as to resolve the problem that liquid discharge is not smooth because air pressure in the liquid storage cavity is too low when the atomization core guides the liquid, thereby facilitating a return rise of the air pressure in the liquid storage cavity and enabling the liquid to be smoothly guided to the atomization surface from the liquid absorbing surface. Therefore, the atomization core provided in the present disclosure may supply air to the liquid storage cavity on the side of the liquid absorbing surface, thereby improving an air pressure condition of the liquid storage cavity, so as to avoid the case that liquid discharge is not smooth due to a low air pressure in the liquid storage cavity.

The technical solutions in embodiments of the present disclosure are clearly and completely described in the following 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.

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

The present disclosure provides an electronic atomization apparatus <NUM>. Referring to <FIG>, <FIG> is a schematic structural view of an embodiment of an electronic atomization apparatus according to the present disclosure, <FIG> is a schematic structural view of an embodiment of an atomizer in the electronic atomization apparatus shown in <FIG>, <FIG> is a cross-sectional schematic structural view of the atomizer shown in <FIG> in a BB direction, and <FIG> is a schematic exploded structural view of the atomizer shown in <FIG>.

As shown in <FIG>, the electronic atomization apparatus <NUM> may be configured to atomize an e-liquid. As shown in <FIG>, the electronic atomization apparatus <NUM> includes an atomizer <NUM> and a power supply assembly <NUM> that are connected to each other. The atomizer <NUM> is configured to store a liquid and atomize the liquid to form aerosol that may be inhaled by a user. The liquid may be a liquid substrate such as the e-liquid or a drug liquid. The power supply assembly <NUM> is configured to supply power to the atomizer <NUM>, in this way, the atomizer <NUM> may atomize the liquid substrate to form aerosol.

As shown in <FIG>, the atomizer <NUM> may include a cartridge tube <NUM>, a base <NUM>, an atomization core <NUM>, and a bottom <NUM>, where the atomization core <NUM> is disposed between the base <NUM> and the bottom <NUM>, and the base <NUM>, the atomization core <NUM>, and the bottom <NUM> are housed in the cartridge tube <NUM>.

In some embodiments, a liquid storage cavity <NUM> and an aerosol passage <NUM> are disposed in the cartridge tube <NUM>, a liquid outlet port <NUM> is formed at one end of the cartridge tube <NUM>, and the liquid outlet port <NUM> communicates with the liquid storage cavity <NUM>. The liquid storage cavity <NUM> is configured to store an e-liquid, and the aerosol passage <NUM> is configured to send converted aerosol out.

As shown in <FIG>, the base <NUM> is embedded in the cartridge tube <NUM> to cover the liquid outlet port <NUM>. The base <NUM> may include a guide part <NUM> and an accommodating part <NUM> successively connected. A liquid inlet hole <NUM> and an air outlet hole <NUM> are disposed on the guide part <NUM>, the liquid storage cavity <NUM> is in fluid communication with the liquid inlet hole <NUM>, and the aerosol passage <NUM> is in fluid communication with the air outlet hole <NUM>. An accommodating cavity <NUM> for accommodating a part of the atomization core <NUM> is formed in the accommodating part <NUM>, and the atomization core <NUM> is partially accommodated in the accommodating cavity <NUM>. The accommodating part <NUM> communicates with the guide part <NUM> and cooperates with a first surface <NUM> of the atomization core <NUM>, in this way, the liquid inlet hole <NUM> is in fluid communication with the atomization core <NUM>, the e-liquid in the liquid inlet hole <NUM> may be delivered to the atomization core <NUM> by using the guide part <NUM>. The atomization core <NUM> is configured to convert the delivered e-liquid into aerosol by means of heating. The air outlet hole <NUM> is in fluid communication with the atomization core <NUM>, and is configured to transfer the converted aerosol from the air outlet hole <NUM> to the aerosol passage <NUM>. The aerosol is directed to the user's mouth through the aerosol passage <NUM>.

In some embodiments, the liquid inlet hole <NUM> and the air outlet hole <NUM> are disposed on an end face of the base <NUM> near the liquid storage cavity <NUM>. The liquid inlet hole <NUM> communicates opposite two end surfaces of the guide part <NUM>, in this way, the e-liquid in the liquid storage cavity <NUM> may flow into the atomization core <NUM> through the liquid inlet hole <NUM>. The air outlet hole <NUM> communicates the end face of the guide part <NUM> with the side surface of the guide part <NUM>, and the atomized aerosol flows to the side surface of the guide part <NUM> with air flow, and further flows out through the air outlet hole <NUM> and the aerosol passage <NUM>.

In some embodiments, the base <NUM> having the liquid inlet hole <NUM> and the air outlet hole <NUM> is formed as an integrated structure, and the liquid inlet hole <NUM> and the air outlet hole <NUM> are formed on the guide part <NUM>, thereby further improving utilization of the guide part <NUM>. In this way, the structure of the atomizer <NUM> is compact.

There may be only one liquid inlet hole <NUM> and one air outlet hole <NUM>, or there may be one liquid inlet hole <NUM> and a plurality of air outlet holes <NUM>, or there may be a plurality of liquid inlet holes <NUM> and one air outlet hole <NUM>, or there may be a plurality of liquid inlet holes <NUM> and a plurality of air outlet holes <NUM>. In the present disclosure, the number of the liquid inlet holes <NUM> and the number of the air outlet holes <NUM> are not specifically limited.

The cross-sectional shape of the liquid inlet hole <NUM> is non-circular. Specifically, the cross-sectional shape of the liquid inlet hole <NUM> may be a regular shape such as an ellipse, a rectangle, or a triangle, or may be an irregular shape such as a quadrilateral or a pentagon, which is not listed one by one herein.

An advantage of setting the shape of the liquid inlet hole <NUM> to a non-circular hole is that the non-circular hole may prevent a liquid film from being generated when the e-liquid enters the liquid inlet hole <NUM>, so as to ensure fluency of conveying the e-liquid, and avoid a phenomenon of dry burning or a decrease in an aerosol amount during continuous suction. The liquid film means that when the e-liquid flows into the liquid inlet hole <NUM>, a bubble film is formed at the opening of the liquid inlet hole <NUM>, and blocks the liquid inlet hole <NUM>.

As shown in <FIG>, the internal surface of the air outlet hole <NUM> is disposed to include an arc-shaped surface, so as to increase a stay duration of aerosol in the air outlet hole <NUM>, thereby effectively reducing the temperature of converted aerosol, and preventing burns causing by an excessive temperature when the aerosol flows out of the air outlet hole <NUM> and the aerosol passage <NUM>.

As shown in <FIG> and <FIG>, in some embodiments, the accommodating part <NUM> includes a lower surface <NUM> and a through hole <NUM>. The lower surface <NUM> cooperates with the first surface <NUM> of the atomization core <NUM>, and the through hole <NUM> is in communication with the liquid inlet hole <NUM> on the guide part <NUM>. The number of through holes <NUM> may be equal to the number of liquid inlet holes <NUM> on the guide part <NUM>, that is, a through hole <NUM> is correspondingly disposed on the accommodating part <NUM> at a position of each liquid inlet hole <NUM>, in this way, the liquid inlet hole <NUM> is in communication with the atomization core <NUM>, and the e-liquid may reach the atomization core <NUM> by using the liquid inlet hole <NUM>. Alternatively, the accommodating part <NUM> is provided with only one through hole <NUM>, and all the liquid inlet holes <NUM> are in communication with the through hole <NUM>, which is not specifically limited in the present disclosure.

The accommodating part <NUM> is configured to partially accommodate the atomization core <NUM>. In some embodiments, the accommodating part <NUM> is connected to the guide part <NUM>, the atomization core <NUM> is partially accommodated in the accommodating cavity <NUM> of the accommodating part <NUM>, and the first surface <NUM> of the atomization core <NUM> abuts against the lower surface <NUM> of the accommodating part <NUM> by using a sealing member <NUM>, in this way, the accommodating part <NUM> is sealed with the atomization core <NUM>, that is, the base <NUM> is sealed with the atomization core <NUM>.

The base <NUM> is a component formed integrally, and the number of assemblies of the atomizer <NUM> may be reduced, in this way, installation is more convenient and related sealing performance is better.

In some embodiments, the atomization core <NUM> may include a porous matrix <NUM> and a heating element <NUM> disposed on the porous matrix <NUM>. The heating element <NUM> is configured to atomize an e-liquid derived from the porous matrix <NUM>.

As shown in <FIG>, the sealing member <NUM> is disposed between the base <NUM> and the porous matrix <NUM>, and is disposed on the first surface <NUM> and the side surface <NUM> of the porous matrix <NUM>. In some embodiments, the sealing member <NUM> has an upper wall <NUM> that cooperates with the first surface <NUM> of the porous matrix <NUM> and a sidewall <NUM> that cooperates with the side surface <NUM> of the porous matrix <NUM>, so as to seal the gap between the base <NUM> and the porous matrix <NUM>, and achieve a sealing cooperation between the base <NUM> and the atomization core <NUM>, so as to prevent the e-liquid from leaking in the process of flowing from the base <NUM> to the porous matrix <NUM>.

The upper wall <NUM> of the sealing member <NUM> is located between the lower surface <NUM> and the porous matrix <NUM>, and an avoidance hole <NUM> corresponding to the porous matrix <NUM> is disposed on the upper wall <NUM>, the avoidance hole <NUM> communicates with the through hole <NUM>. The side wall <NUM> of the sealing member <NUM> is sandwiched between the inner wall of the accommodating cavity <NUM> and the porous matrix <NUM>. Specifically, the sealing member <NUM> is sleeved on the porous matrix <NUM>, and is sandwiched between the porous matrix <NUM> and the inner wall of the accommodating cavity <NUM>. An advantage of this arrangement is that, on the one hand, the porous matrix <NUM> may be positioned, and on the other hand, the e-liquid on the side of the porous matrix <NUM> may be prevented from leaking out of the side surface <NUM> of the porous matrix <NUM>, thereby avoiding waste.

The atomization core <NUM> further includes a sealing cover <NUM>, and the sealing cover <NUM> covers the guide part <NUM>, and is located between the guide part <NUM> and the inner wall of the liquid storage cavity <NUM>, so as to seal the gap between the base <NUM> and the cartridge tube <NUM>, so as to avoid leakage.

The sealing cover <NUM> is provided with a through hole <NUM> at the position corresponding to the liquid inlet hole <NUM>, and a wall <NUM> sandwiched between the air outlet hole <NUM> and the aerosol passage <NUM> is formed in the direction towards the air outlet hole <NUM> at the position corresponding to the air outlet hole <NUM>. The through hole <NUM> communicates with the liquid storage cavity <NUM> and the liquid inlet hole <NUM>, and the wall <NUM> is sandwiched between the air outlet hole <NUM> and the aerosol passage <NUM>, so as to prevent the e-liquid in the liquid storage cavity <NUM> from entering the air outlet hole <NUM>.

The bottom <NUM> is configured to cooperate with the base <NUM> to fasten the atomization core <NUM> between the bottom <NUM> and the base <NUM>, and an atomization cavity <NUM> is formed between the bottom <NUM> and the atomization core <NUM>, and the atomization cavity <NUM> communicates with the air outlet hole <NUM>. The bottom <NUM> includes a bottom wall <NUM> and a side wall <NUM>. A fastening and fitting structure for connecting to the base <NUM> is disposed on the side wall <NUM>, an air inlet hole <NUM> is disposed on the bottom wall <NUM>, and the air inlet hole <NUM> further communicates with the atomization cavity <NUM>.

The bottom <NUM> and the base <NUM> may be connected by using the fastening and fitting structure. For example, a hook may be disposed on the base <NUM>, and a slot may be disposed on the bottom <NUM>. Alternatively, a hook is disposed on the bottom <NUM>, and a slot is disposed on the base <NUM>.

The air inlet hole <NUM> is disposed on the bottom wall <NUM>, and the air inlet hole <NUM> is in fluid communication with the outside. An external air flow is sent from the air inlet hole <NUM> to the atomization cavity <NUM> between the bottom <NUM> and the atomization core <NUM>, and further, atomized aerosol is taken away from the atomization core <NUM> and is sent out of the aerosol passage <NUM> through the air outlet hole <NUM>.

In some embodiments, six circular air inlet holes <NUM> that are arranged in a shape of plum flowers are disposed on the bottom wall <NUM>. In some embodiments, at least one air inlet hole <NUM> is disposed on the bottom wall <NUM>. When a plurality of air inlet holes <NUM> are disposed on the bottom wall <NUM>, the plurality of air inlet holes <NUM> may be disposed in another arrangement manner, for example, in a form of an array or a star shape, which is not specifically limited herein. The shape of the air inlet hole <NUM> may also be any regular or irregular shape, which is not specifically limited herein.

Further, in some embodiments, the maximum size of the cross-section of each air inlet hole <NUM> is less than or equal to <NUM>. Several studies and tests have found that when the maximum size of the hole is less than or equal to <NUM>, the liquid cannot pass through the hole. Therefore, in some embodiment, the maximum size of the cross-section of the air inlet hole <NUM> is set to be less than or equal to <NUM>, which may further prevent an e-liquid from leaking from the air inlet hole <NUM>, the leakage of the e-liquid may affect use.

As shown in <FIG>, in some embodiments, the atomization core <NUM> may include a porous matrix <NUM> and a heating element <NUM> disposed on the porous matrix <NUM>. The heating element <NUM> is configured to atomize an e-liquid derived from the porous matrix <NUM>. Specifically, the heating element <NUM> may be at least one of a heating coating, a heating line, a heating plate, or a heating net. The heating element <NUM> is electrically connected to the power supply assembly <NUM> by using an electrode.

The porous matrix <NUM> may be porous glass, porous ceramic, or the like. In some embodiments, the porous matrix <NUM> is porous ceramic. A porous ceramic material is usually a ceramic material sintered at a high temperature by using a component such as an aggregate, a binder, and a pore-forming agent. Inside the porous ceramic material, there are a plurality of porous structures in communication with each other and in communication with a surface of the material. The porous ceramic material has high porosity, stable chemical properties, large specific surface area, small volume density, low thermal conductivity, and high temperature and corrosion resistance. It is widely used in metallurgy, biology, energy, and environmental protection.

In some embodiments, the porous ceramic material is used to make the porous matrix <NUM>. The e-liquid on one side of the porous matrix <NUM> penetrates to the other side of the porous matrix <NUM> through a plurality of porous structures inside the porous ceramic material, which communicate with each other and the surface of the material, and contacts the heating element <NUM> provided on one side of the porous matrix <NUM>, thereby atomizing the e-liquid into aerosol.

<FIG> is a cross-sectional schematic structural view of a first embodiment of a porous matrix in the atomizer shown in <FIG>.

Specifically, the porous matrix <NUM> has a first surface <NUM>, a second surface <NUM>, and a side surface <NUM>, the second surface <NUM> is disposed opposite to the first surface <NUM>, and the side surface <NUM> is connected to the first surface <NUM> and the second surface <NUM>. Generally, the first surface <NUM> may be configured to contact an e-liquid that communicates with the liquid storage cavity <NUM>, and the second surface <NUM> may be configured to contact gas. The gas contact herein may be that the second surface <NUM> contacts external air, contacts air in the atomization cavity <NUM>, or contacts air in the aerosol passage <NUM>.

In some embodiments, the e-liquid on the side of the first surface <NUM> of the porous matrix <NUM> penetrates to the side of the second surface <NUM> of the porous matrix <NUM> through a plurality of porous structures inside the porous matrix <NUM> which communicate with each other and communicate with the material surface, and the heating element <NUM> is disposed on the second surface <NUM> to atomize the e-liquid which penetrates to the second surface <NUM>. The side surface <NUM> also communicates with a porous structure, so the side surface <NUM> may also be used for liquid guiding or ventilation.

The porous matrix <NUM> includes a connected liquid guide part <NUM> and a vent part <NUM>. The liquid guide part <NUM> has a liquid absorbing surface <NUM> for absorbing a liquid substrate and an atomization surface <NUM> on which the heating element <NUM> is disposed. The liquid guide part <NUM> is configured to conduct the liquid substrate on the side of the liquid absorbing surface <NUM> to the atomization surface <NUM>. The vent part <NUM> has a lyophobic ventilation characteristic. The lyophobic characteristic is for a liquid substrate to be atomized herein. As long as the vent part 325has the lyophobic characteristic for the liquid substrate to be atomized, the vent part <NUM> has the lyophobic characteristic described herein. The ventilation characteristic is achieved by the fact that the plurality of porous structures inside the porous matrix <NUM>, which are in communication with each other, are breathable. The vent part <NUM> is configured to conduct gas to the liquid storage cavity <NUM>, so as to improve a pressure condition in the liquid storage cavity <NUM>.

Specifically, the vent part <NUM> includes an air inlet surface <NUM> and an air outlet surface <NUM>. The air inlet surface <NUM> may be configured to contact with gas. The air outlet surface <NUM> is exposed to the liquid storage cavity <NUM>, where being exposed to the liquid storage cavity <NUM> includes a case in which the air outlet surface <NUM> is directly a wall of the liquid storage cavity <NUM> or the air outlet surface <NUM> communicates with the liquid storage cavity <NUM>. The gas contact herein may be that the air inlet surface <NUM> is in contact with external air, the air inlet surface <NUM> is in contact with air in the atomization cavity <NUM>, or the air inlet surface <NUM> is in contact with air in the aerosol passage <NUM>. The vent part <NUM> may be configured to conduct the gas on the side of the air inlet surface <NUM> to the air outlet surface <NUM>, where the gas herein is mainly air, and finally the gas is conducted to the liquid storage cavity <NUM>.

In some embodiments, the liquid guide part <NUM> is configured to direct the e-liquid from the first surface <NUM> to the second surface <NUM>, and the vent part <NUM> is configured to import the gas from the second surface <NUM> to the first surface <NUM>.

In some embodiments, the porous matrix <NUM> is an integrally formed component. A part of the porous matrix <NUM> is processed by using a ceramic modification technology to obtain a lyophobic characteristic. An unmodified substrate is used as the liquid guide part <NUM>, and a porous structure in the liquid guide part <NUM> is used to conduct the e-liquid, and the modified part of the substrate is used as the vent part <NUM>, in this way, the vent part <NUM> does not perform a function of conducting the e-liquid, but performs only gas exchange.

The ceramic modification technology may be a micro-nano technology, a physical aerosol deposition, an etching, an electroplating, spraying, a plasma technology, or the like. For example, the micro-nano technology is used to change the porous structure of a part of the substrate, in this way, the e-liquid does not enter the porous structure in the vent part <NUM>, the ventilation characteristic of the porous structure is not affected, and the vent part <NUM> has the lyophobic ventilation characteristic. Alternatively, a lyophobic material, which may be an olefin-based polymer, an amine-based polymer, an ester-based polymer, a fluororesin, a siloxane compound, a silane-based compound, a thiol-based compound, or the like, is deposited by physical aerosol deposition, electroplated, or sprayed onto a part of the porous matrix <NUM>, and then heat-treated to form the vent part <NUM> having the lyophobic ventilation characteristic.

In some embodiments, the porous matrix <NUM> may be a component not formed in an integrated manner, and the liquid guide part <NUM> and the vent part <NUM> may be detachably connected. For example, the vent part <NUM> is engaged with the liquid guide part <NUM> by means of clamping, inserting, or screwing, which is not specifically limited in the present disclosure.

The porous matrix <NUM> may be in a flat plate shape, a stepped shape, or the like, which is not specifically limited in the present disclosure. The first surface <NUM> is the surface of the side of the porous matrix <NUM> facing the liquid storage cavity <NUM>, and the second surface <NUM> is the surface of the side of the porous matrix <NUM> away from the first surface <NUM>. Both the first surface <NUM> and the second surface <NUM> may be flat planes, and the first surface <NUM> and the second surface <NUM> may be irregular planes such as curved surfaces. This is not specifically limited in the present disclosure. For example, a groove is disposed on a side of the first surface <NUM> of the porous matrix <NUM>, and the surface of the groove also belongs to the first surface <NUM>.

There is at least one vent part <NUM>, or a plurality of vent parts <NUM> may be disposed on the porous matrix <NUM>. For example, three or four equal vent parts <NUM> are disposed on each side along the circumferential direction of the porous matrix <NUM>, which is not specifically limited in the present disclosure.

As shown in <FIG>, <FIG>, and <FIG>, in some embodiments, the first surface <NUM> is the surface of the side of the porous matrix <NUM> facing the liquid storage cavity <NUM>, the e-liquid in the liquid storage cavity <NUM> passes through the through hole <NUM>, the liquid inlet hole <NUM>, the through hole <NUM>, and the avoidance hole <NUM> to the first surface <NUM> of the porous matrix <NUM>, and then the e-liquid permeates through the first surface <NUM> to the second surface <NUM>. The heating element <NUM> disposed on the second surface <NUM> atomizes the e-liquid to form aerosol in the atomization cavity <NUM>, and the aerosol flows through the side surface and the air outlet hole <NUM> of the guide part <NUM>, flows out of the aerosol passage <NUM>, and is guided to the mouth of the user through the aerosol passage <NUM>. The second surface <NUM> is the surface of the side of the porous matrix <NUM> away from the liquid storage cavity <NUM>, and the air inlet hole <NUM> on the bottom wall <NUM> is in fluid communication with the outside, in this way, an external air flow is sent from the air inlet hole <NUM> to the atomization cavity <NUM>, that is, the air flow takes away aerosol generated by atomization at the second surface <NUM>.

The e-liquid in the liquid storage cavity <NUM> is continuously consumed as the user smokes, and the e-liquid in the liquid storage cavity <NUM> is reduced, thereby reducing air pressure in the liquid storage cavity <NUM>. If this is not improved in a timely manner, it is easy to cause poor e-liquid discharge when the e-liquid in the liquid storage cavity <NUM> passes through the porous matrix <NUM>, thereby causing the heating element <NUM> to dry burn and generate scorched flavor due to a liquid supply failure. Because the vent part <NUM> exists, when the internal and external pressure difference of the liquid storage cavity <NUM> is excessively large, air may be introduced from one side of the second surface <NUM> to the first surface <NUM> by using the vent part <NUM>, so as to improve a condition that the air pressure in the liquid storage cavity <NUM> is excessively low, so as to avoid excessively large internal and external pressure difference of the liquid storage cavity <NUM>, thereby facilitating smooth e-liquid discharge in the liquid storage cavity <NUM> and avoiding scorched flavor.

For example, as shown in <FIG>, the vent part <NUM> penetrates the porous matrix <NUM> in the direction in which the first surface <NUM> points to the second surface <NUM>. Therefore, because of the lyophobic ventilation characteristic of the vent part <NUM>, gas may be introduced from the side of the porous matrix 32at which the second surface <NUM> is located to the side of the porous matrix <NUM> at which the first surface <NUM> is located along the porous structure in the vent part <NUM>, thereby improving the air pressure condition in the liquid storage cavity <NUM> and avoiding excessively large internal and external pressure difference of the liquid storage cavity <NUM>. The arrows in the accompanying drawings are used to indicate directions of the gas.

In some embodiments, as shown in <FIG>, in the porous matrix <NUM>, both the liquid absorbing surface <NUM> and the air outlet surface <NUM> are located on the first surface <NUM>, and both the air inlet surface <NUM> and the atomization surface <NUM> are located on the second surface <NUM>. In other words, the vent part <NUM> has a part of the first surface <NUM> and a part of the second surface <NUM>. Therefore, the part of the porous matrix <NUM> located between the air outlet surface <NUM> and the air inlet surface <NUM> does not undertake a function of conducting the e-liquid, but delivers, under a pressure difference, gas entering through the air inlet surface <NUM> to the air outlet surface <NUM>, so as to adjust the air pressure condition in the liquid storage cavity <NUM>. In addition, if a part of the side surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the side surface <NUM> may be used as the liquid absorbing surface <NUM>, and if the vent part <NUM> has a part of the side surface <NUM>, the part of the side surface <NUM> may be used as the air outlet surface <NUM>.

As shown in <FIG>, the vent part <NUM> is extended from the air outlet surface <NUM> to the air inlet surface <NUM>, that is, the vent part <NUM> runs through the porous matrix <NUM> in the direction in which the first surface <NUM> points to the second surface <NUM>, and the vent part <NUM> may be configured to directly conduct the gas on the side of the porous matrix <NUM> at which the second surface <NUM> is located to the side of the porous matrix <NUM> at which the first surface <NUM> is located, so as to improve the air pressure condition in the liquid storage cavity <NUM>.

As shown in <FIG>, <FIG>, and <FIG>, <FIG> and <FIG> are respectively schematic structural views of another porous matrix <NUM> in the atomizer shown in <FIG>, and are described by replacing the porous matrix <NUM> in <FIG> with the porous matrix <NUM>.

Specifically, the vent part <NUM> is located in the middle part of the porous matrix <NUM>, and the vent part <NUM> is spaced apart from the side surface <NUM> of the porous matrix <NUM>. The first surface <NUM> faces the liquid storage cavity <NUM>, and the second surface <NUM> faces the atomization cavity <NUM>. Therefore, the liquid guide part <NUM> seals the peripheral side of the vent part <NUM>, and the vent part <NUM> intakes gas from the air inlet surface <NUM> of the second surface <NUM>, and conducts the gas to the air outlet surface <NUM> of the first surface <NUM>, so as to introduce the gas outside the liquid storage cavity <NUM> into the liquid storage cavity <NUM>, so as to adjust the air pressure condition in the liquid storage cavity <NUM>.

As shown in <FIG>, <FIG>, and <FIG> is a schematic top view of another embodiment of the porous matrix in <FIG>. The vent part <NUM> is located in the middle part of the porous matrix <NUM>, and the vent part <NUM> further has a part of the side surface <NUM>. The first surface <NUM> faces the liquid storage cavity <NUM>, the second surface <NUM> faces the atomization cavity <NUM>, and the side surface <NUM> of the porous matrix <NUM> is sealed by the side wall <NUM> of the sealing member <NUM>. Therefore, the vent part <NUM> may directly introduce the gas in the atomization cavity <NUM> on the side of the second surface <NUM> into the liquid storage cavity <NUM> on the side of the first surface <NUM>. In some embodiments, if at least a part of the side surface <NUM> is exposed to the gas in the atomization cavity <NUM>, the vent part <NUM> may further intake air from the side surface <NUM>. If at least a part of the side surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the vent part <NUM> may further output air from the side surface <NUM>, and the liquid guide part <NUM> may further absorb liquid from the side surface <NUM>.

As shown in <FIG>, <FIG>, and <FIG> is a schematic side view of an embodiment of the porous matrix in <FIG> or <FIG>. The vent part <NUM> is located on the edge of the porous matrix <NUM>, that is, the vent part <NUM> is located on the outside of the liquid guide part <NUM>, and the vent part <NUM> further has a part of the side surface <NUM>, and the side surface <NUM> is sealed by the side wall <NUM>. Therefore, the vent part <NUM> may directly introduce the gas in the atomization cavity <NUM> into the liquid storage cavity <NUM>. In some embodiments, if at least a part of the side surface <NUM> is exposed to the gas in the atomization cavity <NUM>, the vent part <NUM> may further intake air from the side surface <NUM>. If at least a part of the side surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the vent part <NUM> may further output air from the side surface <NUM>, and the liquid guide part <NUM> may further absorb liquid from the side surface <NUM>.

As shown in <FIG>, <FIG>, and <FIG> is a schematic top view of an embodiment of the porous matrix in <FIG>. The vent part <NUM> is arranged in an annular shape and surrounds the outer surface of the liquid guide part <NUM>. In other words, the vent part <NUM> is arranged in an annular shape along the edge of the porous matrix <NUM>. The vent part <NUM> may directly introduce the gas in the atomization cavity <NUM> into the liquid storage cavity <NUM>, in this way, the vent part <NUM> may exchange air more evenly. Because of the lyophobic characteristic of the vent part <NUM>, the vent part <NUM> may further lock the liquid in the porous matrix <NUM>, so as to prevent the liquid in the liquid guide part <NUM> from leaking from the side surface <NUM>. The side wall <NUM> of the sealing member <NUM> is sandwiched between the side surface <NUM> of the porous matrix <NUM> and the inner wall of the accommodating cavity <NUM>, and the vent part <NUM> cooperates with the side wall <NUM> to further improve a sealing effect. In some embodiments, if a part of the side surface <NUM> is exposed to the gas in the atomization cavity <NUM>, the vent part <NUM> may further intake air from the side surface <NUM>. If a part of the side surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the vent part <NUM> may further output air from the side surface <NUM>, and the liquid guide part <NUM> may further absorb liquid from the side surface <NUM>.

As shown in <FIG>, <FIG>, and <FIG> is a schematic top view of another embodiment of the porous matrix in <FIG>. A plurality of vent parts <NUM> are spaced apart from each other along the outer surface of the liquid guide part <NUM>, that is, a plurality of vent parts <NUM> are disposed around the side surface <NUM> of the porous matrix <NUM>, in this way, a uniform air exchange effect may be achieved. In addition, a local region of the porous matrix <NUM> has a liquid locking effect, which further improves a local sealing effect of the porous matrix <NUM>.

In some embodiments, as shown in <FIG>, both the liquid absorbing surface <NUM> and the air outlet surface <NUM> are located on the first surface <NUM>, the air inlet surface <NUM> is located on the side surface <NUM>, and the atomization surface <NUM> is located on the second surface <NUM>.

As shown in <FIG> and <FIG> is a schematic side view of an embodiment of the porous matrix in <FIG> or <FIG>. The air outlet surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, and at least a part of the air inlet surface <NUM> is exposed to the gas in communication with the atomization cavity <NUM>. Therefore, the vent part <NUM> may intake air from the side surface <NUM>, and intake air from the air inlet surface <NUM> to output air from the air outlet surface <NUM> to the liquid storage cavity <NUM> under the action of a pressure difference, so as to adjust the air pressure condition in the liquid storage cavity <NUM>.

Therefore, the vent part <NUM> may not penetrate the porous matrix <NUM>, so as to shorten working hours of the vent part <NUM> and reduce manufacturing costs. In another embodiment, if at least a part of the side surface <NUM> is also exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the vent part <NUM> may further output air from the air inlet surface <NUM>, and the liquid guide part <NUM> may further absorb liquid from the side surface <NUM>.

In some embodiments, as shown in <FIG>, the air outlet surface <NUM> is located on the side surface <NUM>, at least a part of the air outlet surface <NUM> is exposed to the e-liquid in communication with the atomization cavity <NUM>, the air inlet surface <NUM> and the atomization surface <NUM> are located on the second surface <NUM>, the second surface <NUM> is exposed to gas, and the liquid absorbing surface <NUM> is located on the first surface <NUM> and/or the side surface <NUM>. Under the action of a pressure difference, the vent part <NUM> intakes air from the air inlet surface <NUM> and conducts gas to the air outlet surface <NUM>, and at least a part of the air outlet surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, in this way, the vent part <NUM> may import gas into the liquid storage cavity <NUM>. The vent part <NUM> may be disposed in an annular manner around the outer circumference of the liquid guide part <NUM>, or at least one vent part <NUM> is disposed along the outer circumference of the porous matrix <NUM>.

In some embodiments, as shown in <FIG>, both the air inlet surface <NUM> and the air outlet surface <NUM> are located on the side surface <NUM>, the atomization surface <NUM> is located on the second surface <NUM>, and the liquid absorbing surface <NUM> is located on the first surface <NUM> and/or the side surface <NUM>. A part of the side surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, in this way, gas transmitted from the air outlet surface <NUM> enters the liquid storage cavity <NUM>. A part of the side surface <NUM> is exposed to the atomization cavity <NUM>, in this way, gas may enter into the vent part <NUM> through the air inlet surface <NUM>. The vent part <NUM> may be disposed in an annular manner around the outer circumference of the liquid guide part <NUM>, or at least one vent part <NUM> is disposed along the outer circumference of the porous matrix <NUM>.

In some embodiments, as shown in <FIG>, the vent part <NUM> is a protrusion disposed on the side surface <NUM>, and it may also be considered that both the air inlet surface <NUM> and the air outlet surface <NUM> are located on the side surface <NUM>, and the vent part <NUM> may intake air from the air inlet surface <NUM> facing the atomization cavity <NUM>, and direct gas from the air outlet surface <NUM> facing the liquid storage cavity <NUM> to the liquid storage cavity <NUM>. The vent part <NUM> may be disposed on the upper edge of the side surface <NUM> close to the first surface <NUM>, or the vent part <NUM> is disposed on the lower edge of the side surface <NUM> close to the second surface <NUM>, or the vent part <NUM> is disposed in the middle of the side surface <NUM>. The vent part <NUM> may be disposed in an annular manner along the side surface <NUM>, or a plurality of vent parts may be spaced apart from each other circumferentially along the side surface <NUM>.

In some embodiments, as shown in <FIG> and <FIG> is a schematic top view of an embodiment of the porous matrix in <FIG> or <FIG>. Both the air inlet surface <NUM> and the air outlet surface <NUM> are located on the first surface <NUM>, the liquid absorbing surface <NUM> is located on the first surface <NUM> and/or the side surface <NUM>, the vent part <NUM> is spaced apart from the second surface <NUM>, and the atomization surface <NUM> is located on the second surface <NUM>.

In some embodiments, the air inlet surface <NUM> is exposed to the air outlet hole <NUM> or the aerosol passage <NUM> in communication with the atomization cavity <NUM>, the air outlet surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, and the second surface <NUM> is exposed to the atomization cavity <NUM>.

If the first surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the liquid absorbing surface <NUM> is located on the first surface <NUM>. If the first surface <NUM> and a part of the side surface <NUM> are exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the liquid absorbing surface <NUM> is located on the first surface <NUM> and the side surface <NUM>. If the air outlet surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the remaining first surface <NUM> is not exposed to the e-liquid in communication with the liquid storage cavity <NUM>, and a part of the side surface <NUM> is exposed to the e-liquid in communication with the liquid storage cavity <NUM>, the liquid absorbing surface <NUM> is located on the side surface <NUM>.

In some embodiments, as shown in <FIG>, the porous matrix <NUM> is in a stepped shape, the liquid guide part <NUM> includes a body <NUM> and a protrusion <NUM> of an integrated structure, the body <NUM> is provided with a groove <NUM>, the side of the protrusion <NUM> away from the groove <NUM> is provided with the heating element <NUM>, and the vent part <NUM> is disposed on the outer surface of the body <NUM> to form the outer eaves of the porous matrix <NUM>. The porous matrix <NUM> includes two outer eaves disposed on two opposite sides of the body <NUM>. One outer eaves may be disposed by using a ceramic modification technology to form the vent part <NUM>, or the two outer eaves are disposed by using a ceramic modification technology to form the vent part <NUM>, or the entire circumferential outer eaves of the body <NUM> may be disposed by using a ceramic modification technology to form the vent part <NUM>.

The surface of the side of the body <NUM> and the outer eaves facing the liquid storage cavity <NUM> side is a first surface <NUM>, the first surface <NUM> further includes the surface of the groove <NUM>, and the surface of the side of the body <NUM> and the outer eaves away from the first surface <NUM> side is a second surface <NUM>.

In other words, the groove <NUM> is disposed on the first surface <NUM> of the porous matrix <NUM>, and after the e-liquid in the liquid storage cavity <NUM> enters the groove <NUM>, the contact area between the e-liquid and the porous matrix <NUM> may be increased, thereby increasing the diffusion speed of the e-liquid. In addition, the groove <NUM> may further reduce the distance between the first surface <NUM> and the second surface <NUM> of the porous matrix <NUM>, so as to reduce the flow resistance of the e-liquid to the second surface <NUM> of the porous matrix <NUM>, and further increase the diffusion speed of the e-liquid, thereby effectively improving liquid guiding efficiency of the porous matrix <NUM>.

As shown in <FIG>, in some embodiments, a magnet <NUM> is disposed between the power supply assembly <NUM> and the atomizer <NUM>, and two ends of the magnet <NUM> are respectively attracted to the power supply assembly <NUM> and the atomizer <NUM>, so as to connect the power supply assembly <NUM> and the atomizer <NUM>. That is, in some embodiments, the power supply assembly <NUM> and the atomizer <NUM> are connected by using a magnetically attracted structure.

Further, as shown in <FIG>, the electronic atomization apparatus <NUM> in some embodiments further includes an air flow controller <NUM>. The air flow controller <NUM> is disposed on a path in communication with the outside by the air inlet hole <NUM>, and is configured to open a gas path of the electronic atomization apparatus <NUM> under a suction force generated by suction for the electronic atomization apparatus <NUM>, and close the gas path of the electronic atomization apparatus <NUM> without the suction force. Specifically, when the air flow controller <NUM> detects the suction force of the electronic atomization apparatus <NUM>, the air flow controller <NUM> opens the gas path, in this way, the air flow enters the atomizer <NUM> from the air inlet hole <NUM>, and the flowing air flow drives the generated aerosol to flow out of the aerosol passage <NUM> for the user to suck. When the air flow controller <NUM> does not detect the suction force of the electronic atomization apparatus <NUM>, the air flow controller <NUM> closes the gas path, so as to prevent aerosol from flowing out from the aerosol passage <NUM>, thereby saving the e-liquid.

Claim 1:
An atomization core (<NUM>) applied to an electronic atomization apparatus (<NUM>), wherein the atomization core (<NUM>) comprises a porous matrix (<NUM>) and a heating element (<NUM>), and
wherein the porous matrix (<NUM>) comprises:
a liquid guide part (<NUM>) comprising a liquid absorbing surface (<NUM>) for absorbing a liquid substrate and an atomization surface (<NUM>) on which the heating element (<NUM>) is disposed, wherein the liquid guide part (<NUM>) is configured to conduct the liquid substrate on the side of the liquid absorbing surface (<NUM>) to the atomization surface (<NUM>); and
a vent part (<NUM>) connected to the liquid guide part (<NUM>), wherein the vent part (<NUM>) comprises an air inlet surface (<NUM>) and an air outlet surface (<NUM>), the air inlet surface (<NUM>) is configured to contact gas, the air outlet surface (<NUM>) is configured to be exposed to a liquid storage cavity (<NUM>) , and the vent part (<NUM>) is configured to conduct the gas on the side of the air inlet surface (<NUM>) to the air outlet surface (<NUM>);
characterized in that the vent part (<NUM>) has a lyophobic ventilation characteristic.