Patent Description:
Electronic atomizing device, such as electronic cigarette etc, are generally provided with an atomizer, and the atomizer can atomize aerosol generating material stored thereof for users to inhale. Traditional atomizer usually conducts tobacco oil to a heating element through capillary forces for atomization by heating. However, when the atomize aerosol generating material is atomized at a rapid speed, an air pressure in a tobacco oil chamber is reduced, an unsmooth liquid supply is easy to occur. At this time, the aerosol generating material cannot be replenished to an atomizing element timely, which leads the atomizing element to be overheated. As a result, the atomizing element is damaged, and burning smell and hazardous substance is generated.

Atomizing devices of the prior art are described in <CIT>, <CIT> and <CIT> which describes an atomizer comprising the features mentioned in the preamble of the present claim <NUM>.

Accordingly, it is desirable to provide an atomizer and an electronic atomizing device to address or mitigate the aforementioned problems.

The present disclosure discloses an atomizer and an electronic atomizing device, to solve the technical problem that an unsmooth liquid supply is easy to occur when atomize aerosol generating material is atomized too quickly.

To solve the technical problem described above, one technical solution adopted in the present disclosure is to provide an atomizer. The atomizer includes: a housing, defining a first airflow passage through an inlet end and an outlet end; a liquid storage chamber, disposed within the housing; an atomizing assembly, disposed in the path of the first airflow passage, the atomizing assembly is in fluid connection with the liquid storage chamber; a sealing element, including a sealing body and an air compensating valve, the sealing body is configured to form a seal between the housing and the atomizing assembly, the air compensating valve includes a first side and a second side opposite to each other, the first side is located within the liquid storage chamber, the second side is in communication with external air. The air compensating valve becomes open when the pressure of the external air on the second side is greater than the pressure in the liquid storage chamber on the first side.

According to an embodiment of the present disclosure, the air compensating valve is a one-way valve.

According to an embodiment of the present disclosure, the sealing body is a sealing silicone element, the air compensating valve is an elastic element, and the air compensating valve and the sealing body are integrally formed.

According to an embodiment of the present disclosure, the elastic element is a rubber elastic element; the atomizer further includes a blocking element, the blocking element is configured to limit opening amplitude of the elastic element.

According to an embodiment of the present disclosure, the elastic element is disposed perpendicular to the central axis of the atomizer.

According to an embodiment of the present disclosure, the atomizing assembly includes an atomizing base, and a groove is defined on the outer surface of the atomizing base; the groove is in communication with the external air, and is extended into the liquid storage chamber; the sealing silicone element sheathes on the outer surface of the atomizing base, an air exchange passage is defined by the sealing silicone element and the groove to allow the external air to enter the liquid storage chamber, the end of the air exchange passage close to the liquid storage chamber serves as an air outlet.

According to an embodiment of the present disclosure, the air outlet is located at the side of the atomizing base close to the liquid storage chamber, the air outlet is located at a plane perpendicular to the central axis of the atomizer, and the elastic element covers the air outlet.

According to an embodiment of the present disclosure, a supporting part is disposed on the top of the atomizing base, the center of the supporting part is recessed to form a receiving chamber to receive the elastic element; the width of the receiving chamber is greater than the width of the elastic element.

According to an embodiment of the present disclosure, the blocking element includes a first step surface disposed on the inner surface of the housing, the first step surface abuts against the first end of the elastic element connected to the sealing body, and the first end of the elastic element is located between the atomizing base and the first step surface.

According to an embodiment of the present disclosure, the elastic element is disposed parallel to the central axis of the atomizer.

According to an embodiment of the present disclosure, the atomizing assembly includes an atomizing base, a groove is defined on the outer surface of the atomizing base; the groove is in communication with the external air, and is extended into the liquid storage chamber; the sealing silicone element sheathes on the outer surface the atomizing base, an air exchange passage is defined by the sealing silicone element and the groove to allow the external air to enter the liquid storage chamber, the end of the air exchange passage close to the liquid storage chamber serves as an air outlet.

According to an embodiment of the present disclosure, the atomizing base defines a vertical groove along the direction parallel to the central axis of the atomizer inside the atomizing base, the end of the vertical groove is in communication with the liquid storage chamber, the vertical groove includes a first side wall and a second side wall opposite to the first side wall, the air outlet is located at the first side wall, the elastic element covers the air outlet.

According to an embodiment of the present disclosure, the second side wall serves as the blocking element, the elastic element abuts against the first side wall, the distance between the first side wall and the second side wall is greater than the thickness of the elastic element, and less than the length of the elastic element.

According to an embodiment of the present disclosure, the elastic element includes a first end connected to the sealing silicone element and a second end opposite to the first end, the width of the first end is less than the width of the second end.

According to an embodiment of the present disclosure, the outer surface of the atomizing base is provided with a plurality of fins, the plurality of fins are arranged with intervals, adjacent fins define horizontal capillary grooves, the atomizing base further includes at least one vertical vent groove, the at least one vertical vent groove is in communication with the horizontal capillary grooves, the atomizing base further defines at least one air vent being in communication with an atomizing chamber of the atomizing assembly.

To solve the technical problem described above, another technical solution adopted in the present disclosure is to provide an electronic atomizing device. The electronic atomizing device includes a power supply assembly and any one of the atomizers described above. The power supply assembly is configured to power the atomizer, to enable the atomizer to atomize aerosol generating material into smoke.

The benefit of the present disclosure is that: during operation of the atomizer, when the pressure of the external air on the second side is greater than the pressure in the liquid storage chamber on the first side, and a differential-pressure reaches a threshold which can push the air compensating valve to rotate, the air compensating valve becomes open, the external air enters the liquid storage chamber through the air compensating valve, to supply an air pressure in the liquid storage chamber, and avoid a situation that the air pressure in the liquid storage chamber being too low, liquid cannot penetrate to the atomizing assembly for atomization, so as to improve a fluency of atomizing liquid supply, and avoid a situation that the atomizing assembly is overheated due to an unsmooth liquid supply. In a normal situation, the pressure in the liquid storage chamber is greater than or equal to the pressure of the external air, the liquid storage chamber supplies liquid smoothly, and the air compensating valve is in a closed state, to prevent aerosol generating material inside the liquid storage chamber from leaking from the air compensating valve.

In order to illustrate the technical solutions in the embodiments of the present disclosure or the prior art more clearly, the following will briefly introduce the figures needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure; those skilled in the art may derive other figures from these figures without paying any creative work.

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the figures in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without any creative work are within the scope of the present disclosure.

Please refer to <FIG>; <FIG> is a perspective structural schematic view of an embodiment of an atomizer of the present disclosure; <FIG> is a cross-sectional structural schematic view of an embodiment of an atomizer of the present disclosure; <FIG> is an enlarged schematic view of portion A of <FIG>; <FIG> is an exploded structural schematic view of part of an embodiment of an atomizer of the present disclosure.

As shown in <FIG> and <FIG>, embodiments of the present disclosure provide an atomizer <NUM>. The atomizer <NUM> includes a housing <NUM>, a liquid storage chamber <NUM>, an atomizing assembly <NUM>, and a sealing element <NUM>. Wherein, the housing <NUM> includes an inlet end <NUM> used for air inflow and an outlet end <NUM> used for air outflow. The housing <NUM> defines a first airflow passage <NUM> through the inlet end <NUM> and the outlet end <NUM>. The liquid storage chamber <NUM> is disposed within the housing <NUM>, and configured to store aerosol generating material. The atomizing assembly <NUM> is disposed in the path of the first airflow passage <NUM>. The atomizing assembly <NUM> is in fluid connection with the liquid storage chamber <NUM>. The atomizing assembly <NUM> is configured to atomize the aerosol generating material. The sealing element <NUM> includes a sealing body <NUM> and an air compensating valve <NUM>. The sealing body <NUM> is configured to form a seal between the housing <NUM> and the atomizing assembly <NUM>, to improve air impermeability of an assembly of the atomizing assembly <NUM> and the housing <NUM>. The air compensating valve <NUM> is a one-way valve. The air compensating valve <NUM> includes a first side <NUM> and a second side <NUM> opposite to each other. The first side <NUM> is in communication with the liquid storage chamber <NUM>. The second side <NUM> is in communication with external air directly or indirectly.

During operation of the atomizer <NUM> described above, when the pressure of the external air on the second side <NUM> is greater than the pressure in the liquid storage chamber <NUM> on the first side <NUM>, and a differential-pressure reaches a threshold which can push the air compensating valve <NUM> to rotate, the air compensating valve <NUM> becomes open, the external air enters the liquid storage chamber <NUM> through the air compensating valve <NUM>, to supply an air pressure in the liquid storage chamber <NUM>, thus a situation that the air pressure in the liquid storage chamber <NUM> is too low can be avoided, a situation that the liquid cannot penetrate to the atomizing assembly <NUM> for atomization can be avoided, a fluency of atomizing liquid supply is improved, and a situation that the atomizing assembly <NUM> is overheated due to an unsmooth liquid supply is avoided. It should be noted that the air compensating valve <NUM> is a one-way valve. In a normal situation, the pressure in the liquid storage chamber <NUM> is greater than or equal to the pressure of the external air, the liquid storage chamber <NUM> supplies liquid smoothly, and the air compensating valve <NUM> is in a closed state, thus, the aerosol generating material inside the liquid storage chamber <NUM> is prevented from leaking through the air compensating valve <NUM>.

Wherein the sealing body <NUM> is a sealing silicone element <NUM>, the air compensating valve <NUM> is an elastic element <NUM>. The air compensating valve <NUM> and the sealing body <NUM> are integrally formed, so that an assembly of the sealing body <NUM> and the atomizing assembly <NUM> is more convenient.

Specifically, when the pressure of the external air on the second side <NUM> of the air compensating valve <NUM> is <NUM>-<NUM> pa greater than the pressure in the liquid storage chamber <NUM> on the first side <NUM> of the air compensating valve <NUM>, the air compensating valve <NUM> becomes open, such as <NUM> pa, <NUM> pa, <NUM> pa, <NUM> pa or <NUM> pa etc. Preferably, when the pressure of the external air on the second side <NUM> of the air compensating valve <NUM> is <NUM>-<NUM> pa greater than the pressure in the liquid storage chamber <NUM> on the first side <NUM> of the air compensating valve <NUM>, the air compensating valve <NUM> becomes open, such as <NUM> pa, <NUM> pa, <NUM> pa or <NUM> pa etc..

In an embodiment, as shown in <FIG>, the atomizing assembly <NUM> includes an atomizing base <NUM>. A groove <NUM> is defined on the outer surface of the atomizing base <NUM>. The groove <NUM> is in communication with the external air, and is extended into the liquid storage chamber <NUM>, so that the external air to enter the liquid storage chamber <NUM>. The sealing body <NUM> is the sealing silicone element <NUM>. The sealing silicone element <NUM> sheathes on the outer surface of the atomizing base <NUM>. The sealing silicone element <NUM> defines an air exchange passage <NUM> together with the groove <NUM>, so that the external air enters the liquid storage chamber <NUM>. The end of the air exchange passage <NUM> close to the liquid storage <NUM> chamber serves as an air outlet <NUM>. The elastic element <NUM> is located at the side of the atomizing base <NUM> close to the liquid storage chamber <NUM>, and covers the air outlet <NUM>. The elastic element <NUM> includes a first end <NUM> connected to the sealing silicone element <NUM> and a second end <NUM> opposite to the first end <NUM>. When the pressure of one side of the elastic element <NUM> away from the liquid storage chamber <NUM> is greater than the pressure of the other side of the elastic element <NUM> facing the liquid storage chamber <NUM>, and a differential-pressure reaches a threshold which can push the elastic element <NUM> to rotate, the second end <NUM> of the elastic element <NUM> rotates toward the liquid storage chamber <NUM>, so that the external air can enter the liquid storage chamber <NUM> from the air outlet <NUM>.

In an embodiment, as shown in <FIG>, the atomizing assembly <NUM> further includes an atomizing element <NUM> and an atomizing chamber <NUM>. The atomizing element <NUM> is disposed in the atomizing base <NUM>. The atomizing chamber <NUM> is disposed within the atomizing element <NUM>. The atomizing element <NUM> atomizes the aerosol generating material which is stored within the liquid storage chamber <NUM> in the atomizing chamber <NUM>.

The elastic element <NUM> may be set in a variety of ways. The elastic element <NUM> may be disposed perpendicular to the central axis of the atomizer <NUM>, or the elastic element <NUM> is disposed parallel to the central axis of the atomizer <NUM>. In an embodiment, as shown in <FIG>, the air outlet <NUM> is disposed on the top of the atomizing base <NUM>, that is, the side of the atomizing base <NUM> close to the liquid storage chamber <NUM>. The air outlet <NUM> is located at a plane perpendicular to the central axis of the atomizer <NUM>. In a natural state, the elastic element <NUM> horizontally abuts against the top of the atomizing base <NUM> corresponding to the air outlet <NUM>; the width of the elastic element <NUM> is greater than the width of the air outlet <NUM>, the elastic element <NUM> abuts against the top of the atomizing base <NUM>. When the pressure of the external air within the air exchange passage <NUM> is greater than the pressure in the liquid storage chamber <NUM>, and the differential-pressure reaches a threshold which can push the elastic element <NUM> to rotate, the elastic element <NUM> rotates upward, and the external air within the air exchange passage <NUM> passes through the air outlet <NUM> and enters the liquid storage chamber <NUM>, to supply the air pressure in the liquid storage chamber <NUM>. When the pressure in the liquid storage chamber <NUM> is greater than or equal to the pressure of the external air within the air exchange passage <NUM>, the elastic element <NUM> abuts against the top of the atomizing base <NUM> corresponding to the air outlet <NUM> under an effect of air pressure from top to bottom, to prevent a leakage of the aerosol generating material within the liquid storage chamber <NUM>.

In order to control a range of elastic force of the elastic element <NUM>, to make it easier to rotate upward when the pressure of the external air within the air exchange passage <NUM> is greater than the pressure in the liquid storage chamber <NUM>, as shown in <FIG>, the thickness of the first end <NUM> of the elastic element <NUM> is less than the thickness of the second end <NUM> of the elastic element <NUM>, and the width of the first end <NUM> of the elastic element <NUM> is less than the width of the second end <NUM> of the elastic element <NUM>, so that the elastic element <NUM> is more sensitive to the pressure change on both sides, and easier to rotate toward the side of the liquid storage chamber <NUM> when the pressure in the liquid storage chamber <NUM> is too low, to replenish the external air to the liquid storage chamber <NUM>. In particular, the range of elastic force of the elastic element <NUM> can be considered comprehensively according to a density of the aerosol generating material within the liquid storage chamber <NUM>, a liquid absorption capacity of the atomizing assembly <NUM>, and etc, and then adjust the thickness and the width of the first end <NUM> of the elastic element <NUM>, to make its range of elastic force suitable.

Please refer to <FIG>, <FIG> is a cross-sectional structural schematic view of another embodiment of an atomizer of the present disclosure; <FIG> is an enlarged schematic view of portion B of <FIG>; <FIG> is an exploded structural schematic view of part of another embodiment of an atomizer of the present disclosure.

In this embodiment, a structure of the atomizer <NUM> and the path of the external air into the liquid storage chamber <NUM> are approximately the same as the embodiment shown in <FIG>. As shown in <FIG>, the air outlet <NUM> is located on the top of the atomizing base <NUM>, in a natural state, the elastic element <NUM> horizontally abuts against the top of the atomizing base <NUM> corresponding to the air outlet <NUM>. The difference is that, the elastic element <NUM> is a rubber elastic element; the atomizer <NUM> further includes a blocking element <NUM> to limit opening amplitude of the elastic element <NUM>. Specifically, the blocking element <NUM> includes a first step surface <NUM> disposed on the inner surface of the housing <NUM>, the first step surface <NUM> abuts against an upper surface of the first end <NUM> of the elastic element <NUM>, the first end <NUM> of the elastic element <NUM> is located between the atomizing base <NUM> and the first step surface <NUM>. Since the elastic element <NUM> is an elastic material, such as a silicone material, the elastic element <NUM> is prone to warp. The first end <NUM> of the elastic element <NUM> of the present disclosure is located between the atomizing base <NUM> and the first step surface <NUM>; the first step surface <NUM> may apply pressure to the first end <NUM> of the elastic element <NUM>. The first step surface <NUM> does not affect a rotation of the elastic element <NUM> in the liquid storage chamber <NUM>, meanwhile, the first step surface <NUM> may limit opening range of the elastic element <NUM>, so that an excessive rotation of the elastic element <NUM> in a vertical direction is avoided, and the elastic element <NUM> is prevented from deforming or warping. Further, the first step surface <NUM> may improve an installation convenience of the sealing silicone element <NUM>, and facilitate rapid positioning and installation of the sealing silicone element <NUM>.

In addition, after installation, the elastic element <NUM> is prone to migrate in a horizontal direction. As a result, the elastic element <NUM> cannot completely cover the air outlet <NUM>, which may cause a failure of sealing function of the elastic element <NUM>. Thus, as shown in <FIG>, a supporting part <NUM> is disposed on the top of the atomizing base <NUM>. The center of the supporting part <NUM> is recessed to form a receiving chamber <NUM> to receive the elastic element <NUM>. The receiving chamber <NUM> limits the elastic element <NUM>, prevents the elastic element <NUM> from migrating in a horizontal direction, and maintains the sealing function of the elastic element <NUM>.

Further, the width of the receiving chamber <NUM> is greater than the width of the elastic element <NUM>. That is, there is an interval between the supporting part <NUM> and the elastic element <NUM>, which may avoid a friction between the supporting part <NUM> and the elastic element <NUM>, so as to ensure that the elastic element <NUM> rotates smoothly to the liquid storage chamber <NUM> when the pressure of the external air within the air exchange passage <NUM> is greater than the pressure in the liquid storage chamber <NUM>.

Please refer to <FIG>, <FIG> is a cross-sectional structural schematic view of another embodiment of an atomizer of the present disclosure; <FIG> is an exploded structural schematic view of part of another embodiment of an atomizer of the present disclosure; <FIG> is a cross-sectional structural schematic view of part of another embodiment of an atomizer of the present disclosure; <FIG> is a perspective structural schematic view of an atomizing base of an embodiment of an atomizer of the present disclosure; <FIG> is another perspective structural schematic view of an atomizing base of an embodiment of an atomizer of the present disclosure.

In this embodiment, the structure of the atomizer <NUM> and the path of the external air into the liquid storage chamber <NUM> are approximately the same as the embodiment shown in <FIG>. The difference is that, the elastic element <NUM> is disposed parallel to the central axis of the atomizer <NUM>. Specifically, as shown in <FIG>, the air outlet <NUM> is disposed within the atomizing base <NUM> vertically. In a natural state, the elastic element <NUM> vertically abuts against the inner surface of the atomizing base corresponding to the air outlet <NUM>.

Specifically, as shown in <FIG> and <FIG>, the atomizing base <NUM> defines a vertical groove <NUM> along the direction parallel to the central axis of the atomizer <NUM> inside the atomizing base <NUM>. The top of the vertical groove <NUM> is in communication with the liquid storage chamber <NUM>. The vertical groove <NUM> includes a first side wall <NUM> and a second side wall <NUM> opposite to the first side wall <NUM>, and the air outlet <NUM> of the air exchange passage <NUM> is located at the first side wall <NUM>. When the pressure of the external air within the air exchange passage <NUM> is greater than the pressure in the liquid storage chamber <NUM>, and the differential-pressure reaches a threshold which can push the elastic element <NUM> to rotate, the elastic element <NUM> rotates in the vertical groove <NUM>, the external air within the air exchange passage <NUM> enter the vertical groove <NUM> through the air outlet <NUM>, and then enter the liquid storage chamber <NUM>, to supply the air pressure in the liquid storage chamber <NUM>. When the pressure in the liquid storage chamber <NUM> is greater than or equal to the pressure of the external air within the air exchange passage <NUM>, the elastic element <NUM> closely abut against the vertical groove <NUM> corresponding to the air outlet <NUM> under an effect of a high pressure in the liquid storage chamber <NUM>, to prevent the leakage of the aerosol generating material within the liquid storage chamber <NUM>.

Since the elastic element <NUM> is disposed within the vertical groove <NUM>, the vertical groove <NUM> may limit the elastic element <NUM>, and avoids a migration of elastic element <NUM> which result in the condition that the elastic element <NUM> cannot completely cover the air outlet <NUM>, so as to maintain the sealing function of the elastic element <NUM>. Further, the blocking element <NUM> in this embodiment is the second side wall <NUM>. The elastic element <NUM> abuts against the first side wall <NUM>, the distance between the first side wall <NUM> and the second side wall <NUM> is greater than the thickness of the elastic element <NUM>, and less than the length of the elastic element <NUM>. Rotation amplitude of the elastic element <NUM> toward the second side wall <NUM> is related to the differential-pressure between the external air within the air exchange passage <NUM> and the liquid storage chamber <NUM>. The greater the differential-pressure, the greater is the rotation amplitude of the elastic element <NUM>. The second side wall <NUM> may limit the opening amplitude of the elastic element <NUM>, to avoid an excessive rotation of the elastic element <NUM> in a vertical direction, so as to prevent the elastic element <NUM> from deforming or warping.

It should be noted that, the distance between the first side wall <NUM> and the second side wall <NUM> may be adjusted according to an elastic capability of the elastic element <NUM>, and the length of the first end <NUM> to the second end <NUM> of the elastic element <NUM>, so that the elastic element <NUM> can rotate toward the second side wall <NUM> for the external air to enter the vertical groove <NUM> through the air outlet <NUM>. At the same time, the excessive rotation of the elastic element <NUM> in a vertical direction is avoided, so as to prevent the elastic element <NUM> from deforming or warping.

In an embodiment, the air exchange passage <NUM> is in communication with the atomizing chamber <NUM>. Specifically, as shown in <FIG> and <FIG>, the outer surface of the atomizing base <NUM> is provided with a plurality of fins <NUM>. The plurality of fins <NUM> are arranged with parallel intervals. Adjacent fins <NUM> define horizontal capillary grooves <NUM>. The atomizing base <NUM> further includes at least one vertical vent groove <NUM>. The at least one vertical vent groove <NUM> is in communication with the horizontal capillary grooves <NUM>. The atomizing base <NUM> further defines at least one air vent <NUM> being in communication with the atomizing chamber <NUM>. The horizontal capillary grooves <NUM> have a function of absorbing liquid and ventilation.

The air of the atomizing chamber <NUM> enters the horizontal capillary grooves <NUM> or the vertical vent groove <NUM> through the air vent <NUM>, and then converges into the air exchange passage <NUM>, and enters the liquid storage chamber <NUM> through the air outlet <NUM> opened by the air compensating valve <NUM>, to supply the pressure in the liquid storage chamber <NUM>.

During the process of opening and closing of the air compensating valve <NUM>, liquid may overflow from the air outlet <NUM> on the top of the atomizing base <NUM>, and the horizontal capillary grooves can absorb the spilled liquid and lock it in.

In other embodiments, the air exchange passage <NUM> may be in communication with the external air directly. For example, a scavenge port may be disposed on the housing <NUM>, the air exchange passage <NUM> is in communication with the external air directly through the scavenge port, the external air enters the air exchange passage <NUM> through the scavenge port, and then enters the liquid storage chamber <NUM> through the air outlet <NUM> opened by the air compensating valve <NUM>, to supply the pressure in the liquid storage chamber <NUM>.

Of course, in other embodiments, the air exchange passage <NUM> may be in communication with the atomizing chamber <NUM>, and in communication with the external air directly at the same time, to supply the pressure in the liquid storage chamber <NUM>.

It should be noted that, the details of a communication between the external air and the liquid storage chamber <NUM> are also applicable in any one of the embodiments described above. Please refer to <FIG>, which is a perspective structural schematic view of an embodiment of an electronic atomizing device of the present disclosure.

Another embodiment of the present disclosure provides an electronic atomizing device <NUM>. The electronic atomizing device <NUM> includes a power supply assembly (the power supply assembly is disposed within the electronic atomizing device <NUM>, and is not shown in the FIGS) and an atomizer <NUM> of any one of the embodiments described above. The electronic atomizing device <NUM> further includes the power supply assembly; the power supply assembly <NUM> is configured to power the atomizer <NUM>, to enable the atomizer <NUM> to atomize the aerosol generating material into smoke.

Claim 1:
An atomizer (<NUM>), comprising:
a housing (<NUM>), defining a first airflow passage (<NUM>) through an inlet end (<NUM>) and an outlet end (<NUM>);
a liquid storage chamber (<NUM>), disposed within the housing (<NUM>);
an atomizing assembly (<NUM>), disposed in the path of the first airflow passage (<NUM>), and being in fluid connection with the liquid storage chamber (<NUM>); and
a sealing element (<NUM>),
characterized in that the sealing element (<NUM>) comprises a sealing body (<NUM>) and an air compensating valve (<NUM>), the sealing body (<NUM>) is configured to form a seal between the housing (<NUM>) and the atomizing assembly (<NUM>), the air compensating valve (<NUM>) comprises a first side (<NUM>) and a second side (<NUM>) opposite to each other, the first side (<NUM>) is located within the liquid storage chamber (<NUM>), the second side (<NUM>) is in communication with external air; wherein the air compensating valve (<NUM>) becomes open when the pressure of the external air on the second side (<NUM>) is greater than the pressure in the liquid storage chamber (<NUM>) on the first side (<NUM>).