CN219982124U - Atomizer and aerosol forming device - Google Patents

Abstract

The utility model discloses an atomizer and an aerosol forming device, and relates to the technical field of aerosol forming; the atomizer comprises a shell, a liquid storage bin and a flow-blocking ventilation structure, wherein the liquid storage bin and the flow-blocking ventilation structure are arranged in the shell; the flow-blocking ventilation structure comprises a first port, a second port and a micro-channel, wherein the first port is communicated with the liquid storage bin, the second port is communicated with the atmosphere, the micro-channel is connected with the first port and the second port, a flow-inhibiting unit is formed on the micro-channel, the flow-inhibiting unit controls the flowing direction of liquid, and liquid is inhibited from flowing from the first port to the second port. The atomizer utilizes the micro-channel flow blocking principle to inhibit the flow of liquid in the ventilation process, solves the leakage problem of the liquid, and has ventilation and leakage prevention capabilities.

Description

Atomizer and aerosol forming device

Technical Field

The utility model relates to the technical field of aerosol formation, in particular to an atomizer and an aerosol forming device.

Background

The aerosol forming device tobacco tar bin can not lose the tobacco tar quality when supplying with heating wire tobacco tar, forms the negative pressure that continuously rises in the oil bin, can prevent the normal heating wire of supplying with oil in the oil bin after the negative pressure reaches certain degree, needs a ventilation channel to realize that external air gets into the oil bin in order to balance inside and outside pressure difference this moment.

The reasonable ventilation channel can keep the pressure fluctuation of the oil bin in a smaller range in the working period, maintain a stable liquid supply rate and reduce the phenomenon of heating element dry burning caused by insufficient liquid supply. Therefore, the ventilation channel is connected with the oil bin and the outside air, so that oil liquid is required to be prevented from directly seeping out of the oil bin from the channel through a certain structural design, the traditional leakage-proof technology is required to design a complex bending structure and a multiple sealing structure, the manufacturing difficulty is improved, and the extra sealing structure also occupies the size of the electronic atomizer.

Disclosure of Invention

The utility model aims to provide an atomizer which utilizes the micro-channel flow blocking principle to inhibit the flow of liquid in the ventilation process, solves the leakage problem of the liquid and has ventilation and leakage prevention capabilities. Another object of the present utility model is to provide an aerosol-forming device to which the above-described atomizer is applied.

To achieve the above object, the present utility model provides an atomizer comprising:

the device comprises a shell, a liquid storage bin and a flow-resistant ventilation structure, wherein the liquid storage bin and the flow-resistant ventilation structure are arranged in the shell; the choke ventilation structure comprises:

the first port is communicated with the liquid storage bin;

a second port in communication with the atmosphere;

a microchannel connecting the first port and the second port;

and the flow inhibition unit is formed on the micro-channel and used for controlling the flow direction of the liquid and inhibiting the liquid from flowing from the first port to the second port.

In some embodiments, the flow-inhibiting unit has a liquid flow-direction control structure that produces a directional capillary force on the liquid.

In some embodiments, the liquid flow direction control structure is a pointed structure.

In some embodiments, the projected pattern of the flow-inhibiting unit on the longitudinal section of the microchannel has at least two line segments that also intersect to form the tip of the liquid flow-direction control structure.

In some embodiments, the intersection point of two line segments is taken as the vertex, and the included angle between the two line segments is smaller than 90 °.

In some embodiments, an angle between an extension of a line segment facing the first port of the two line segments and a section of the central axis of the microchannel near the second end is greater than or equal to 90 °.

In some embodiments, the line segment of the projected pattern is in the form of a straight line.

In some embodiments, the flow inhibiting units are equally spaced apart in the direction of extension of the microchannel.

In some embodiments, the microchannels are provided with at least two sets of flow inhibiting cells circumferentially.

In some embodiments, each set of flow suppression units is mirror symmetric about a central axis of the microchannel.

In some embodiments, the flow-blocking ventilation structure is disposed on the nebulization channel, the ventilation channel, or the liquid supply channel.

The utility model also provides an aerosol forming device, which is applied with the atomizer.

Compared with the background art, the atomizer provided by the utility model comprises a shell, a liquid storage bin and a flow-blocking ventilation structure, wherein the liquid storage bin and the flow-blocking ventilation structure are arranged in the shell. The flow-blocking ventilation structure comprises a first port, a second port and a micro-channel, wherein the first port is communicated with the liquid storage bin, the second port is communicated with the atmosphere, the micro-channel is connected with the first port and the second port, a flow-inhibiting unit is formed on the micro-channel, the flow-inhibiting unit controls the flow direction of liquid, and the liquid is inhibited from flowing from the first port to the second port.

In the working process of the atomizer, when liquid in the liquid storage bin is reduced, the internal pressure of the liquid storage bin is increased, under the action of low pressure, gas is supplemented to the liquid storage bin through a flow-blocking ventilation structure, namely, the gas enters the flow-blocking ventilation structure through a second port communicated with the outside atmosphere, and enters the liquid storage bin through a first port communicated with the liquid storage bin after passing through a micro-channel, so that gas exchange is completed; in this process, the micro-channel generates a directional capillary force by the flow restraining unit formed thereon, and generates a check valve-like action to restrain the flow of the liquid in the direction from the first port to the second port when the first port and the second port are ventilated. Therefore, the atomizer utilizes the micro-channel flow blocking principle to inhibit the flow of liquid in the ventilation process, solves the leakage problem of the liquid, and has ventilation and leakage prevention capabilities.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a structure of a choke ventilation structure and an atomizer according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a structure of a choke ventilation structure provided in an embodiment of the present utility model;

FIG. 3 is a schematic view of a triangle structure of a flow-blocking ventilation structure according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a tree structure of a choked flow ventilation structure according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a fin structure of a choked flow ventilation structure according to an embodiment of the present utility model;

FIG. 6 is a schematic process diagram of the microchannel flow blocking principle.

Wherein:

011-first port, 012-second port, 013-microchannel, 014-flow suppressing unit, 0141-liquid flow control structure, 0142-liquid flow guiding structure, 01401-first line segment, 01402-second line segment, 01403-third line segment, 1-housing, 2-vent tube, 3-vent tube seal, 4-oil-conducting cotton, 5-heating wire, 6-bottom cap, 7-oil plug, 8-bottom cap seal, 9-electrode, 10-battery stem component, 101-liquid storage bin, 201-liquid-conducting hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present utility model will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present utility model.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a choke ventilation structure and an atomizer provided in an embodiment of the present utility model, fig. 2 is a schematic structural diagram of the choke ventilation structure provided in the embodiment of the present utility model disposed on a ventilation pipe, and fig. 3 is a schematic triangular structural diagram of the choke ventilation structure provided in the embodiment of the present utility model.

In a first specific embodiment, the utility model provides an atomizer, comprising a housing 1, a liquid storage bin 101 and a flow blocking ventilation structure, wherein the liquid storage bin 101 and the flow blocking ventilation structure are arranged in the housing 1. As shown in fig. 1, the reservoir 101 and the flow-blocking ventilation structure are located inside the housing 1.

In the atomizer, the flow-blocking ventilation structure includes a first port 011, a second port 012, and a microchannel 013, and a flow-suppressing unit 014 is formed on the microchannel 013. As shown in fig. 2, the microchannel 013 connects the first port 011 and the second port 012, and as understood in connection with fig. 1, the first port 011 communicates with the reservoir 101, and the second port 012 communicates with the atmosphere. As shown in fig. 3, the flow suppressing means 014 is located inside the micro channel 013, and the flow suppressing means 014 is a basic means for suppressing the liquid in the micro channel 013, and the flow direction of the liquid is controlled by the flow suppressing means 014, thereby suppressing the flow of the liquid from the first port 011 to the second port 012.

The purpose of this choke ventilation structure is to allow gas exchange between the reservoir 101 and the atmosphere by communication between the first port 011, the second port 012, and the microchannel 013; meanwhile, the flow of liquid from the reservoir 101 is hindered by the principle of micro-channel flow blocking of the micro-channel 013. Wherein the micro-channel 013 is a reverse application of the principle of unidirectional flow of liquid, and the liquid flow direction is controlled to be opposite by the micro-channel 013, thereby inhibiting the liquid flow.

In the working process of the atomizer, when liquid in the liquid storage bin 101 is reduced, the internal pressure of the liquid storage bin 101 is increased, under the action of low pressure, gas is supplemented to the liquid storage bin 101 through a flow-blocking ventilation structure, namely, the gas enters the flow-blocking ventilation structure through a second port 012 communicated with the outside atmosphere, and enters the liquid storage bin 101 through a first port 011 communicated with the liquid storage bin 101 after passing through a micro-channel 013, so that gas exchange is completed; in this process, the micro channel 013 generates a directional capillary force by the flow suppressing unit 014 formed thereon, generates a check valve-like action, and suppresses the flow of liquid in the direction of the first port 011 toward the second port 012 when the first port 011 and the second port 012 are ventilated.

Compared with the complex bending structure and the multiple sealing structure in the prior art, the choke ventilation structure mainly takes a micro-channel 013 as an improvement content, and realizes a better leakage-proof effect; therefore, the atomizer utilizes the micro-channel flow blocking principle to inhibit the flow of liquid in the ventilation process, solves the leakage problem of the liquid, and has ventilation and leakage prevention capabilities.

It should be noted that the location of the choke ventilation structure is not limited in this embodiment, for example, the micro-channel 013 may be disposed in the ventilation channel, the atomization channel, the liquid supply channel, etc. of the aerosol-forming device and the atomizer, so long as the choke ventilation between the liquid storage compartment 101 and the atmosphere can be achieved.

Preferably, the choke ventilation structure is provided in a ventilation passage of the aerosol-forming device and the atomizer.

Because the size of the ventilation channel is generally below millimeter, the oil liquid in the ventilation channel flows slowly, the inertia force of the liquid is much smaller than the surface acting force, the surface acting force is related to the curvature of a liquid film on a contact surface, and the micro-channel 013 is designed to control the liquid to move in different directions in the channel to receive unequal capillary acting force, so that the resistance of gas entering the liquid storage bin 101 is reduced, and the flow of the liquid in the channel to the outside is inhibited.

In addition, it should be noted that the structural style of the aerosol forming device as the application object of the choke ventilation structure and the atomizer is not unique, and the choke ventilation structure and the atomizer can be applied by aerosol forming devices of different styles to achieve the choke ventilation effect.

For example, the aerosol-forming device may be an electronic atomizing device using a cotton core heating element, an electronic atomizing device using a ceramic cotton-covered heating element, or an electronic atomizing device using a ceramic breather pipe integrated heating element. The aerosol forming device can inhibit the overflow of oil liquid and ensure the smooth entering of gas into the oil bin under the action of the choked flow ventilation structure and the atomizer, ensure the consistency of the ventilation performance of the product, solve the phenomenon of core pasting or liquid leakage of the product and improve the taste.

With continued reference to fig. 3 and fig. 4 to 5, fig. 4 is a schematic tree structure diagram of a choked flow ventilation structure according to an embodiment of the present utility model, and fig. 5 is a schematic fin structure diagram of a choked flow ventilation structure according to an embodiment of the present utility model.

In some embodiments, the flow-inhibiting unit 014 has a liquid flow-direction control structure 0141, the tip of the liquid flow-direction control structure 0141 being disposed along the direction of the second port 012 toward the first port 011. In the explanation of the flow blocking principle of the micro-channel, the liquid flow direction control structure 0141 is used for controlling the flow direction of the liquid, under the action of the tip of the liquid flow direction control structure 0141, the liquid in the micro-channel 013 is pierced by the tip of the liquid flow direction control structure 0141, and a directional capillary force is generated, so that the liquid continues to flow along the capillary force direction, thereby inhibiting the flow of the liquid in the other direction, and realizing the unidirectional flow effect of the liquid in the micro-channel 013. The solution of the present utility model is applied in the opposite direction, and the directional capillary force generated by the liquid flow direction control structure 0141 is directed to the first port 011, and the liquid flow direction of the micro channel 013 is set from the second port 012 to the first port 011.

Preferably, the liquid flow direction control structure 0141 is a pointed structure with pointed tips for puncturing the liquid flowing in the micro-channels 013, resulting in a directed capillary force towards the tip direction, i.e. liquid flow along the tip direction. Specifically, the tip of the pointed structure is directed toward the first port 011, so that the liquid flow direction of the microchannel 013 is set from the second port 012 to the first port 011, and it is suppressed that the tobacco tar hardly flows from the first port 011 to the second port 012.

It should be noted that the fluid flow control structure 0141 may also be arcuate, with the exception that the effect produced is not as sharp as it is, the sharper the pointed structure the better the fluid flow control effect.

As shown in fig. 3 to 5, the flow inhibiting units 014 of the flow blocking ventilation structure may have different shapes, but each of the flow inhibiting units 014 of different shapes may have a liquid flow direction control structure 0141, and the tips of the liquid flow direction control structure 0141 help the flow blocking ventilation structure to realize the microchannel flow blocking principle described above.

Referring to fig. 6, fig. 6 is a schematic process diagram of the principle of flow blocking of a micro channel. As shown in fig. 6, the liquid medium is taken as a study object, and the liquid flow direction control structure 0141 is taken as a pointed structure, so that the liquid is located in the micro-channel 013, and the liquid can flow in the micro-channel 013 either upstream along the micro-channel 013 or downstream along the micro-channel 013. The flow suppressing unit 014 is arranged inside the micro channel 013, because of the existence of the sharp corner structure of the flow suppressing unit 014, if the flow direction of the liquid faces the tip of the sharp corner structure, i.e. the liquid flows downstream along the micro channel 013, the interface of the liquid is punctured by the sharp corner structure and then flows continuously, while the flow of the liquid upstream along the micro channel 013 is not influenced by the above process, the liquid is biased to flow downstream with the interface thereof punctured by the sharp corner structure in the selection of the upstream flow and the downstream flow, i.e. the liquid flows along the tip direction of the sharp corner structure, which is equivalent to the obstructed effect of the flow phase change of the liquid upstream along the micro channel 013. Thus, the pointed ends of the pointed structures are disposed along the direction of the second port 012 toward the first port 011, controlling the direction of liquid flow from the second port 012 to the first port 011, conversely, inhibiting the flow of liquid at the first port 011 toward the second port 012, i.e., impeding the flow of liquid from the reservoir 101 into the microchannel 013.

Assuming that even if the tobacco tar enters the micro-channel 013 from the second port 012, the tobacco tar is mostly retained in the retaining structure (the portion protruding out of the micro-channel 013, formed with a space) on the side of the sharp corner after being pierced by the sharp corner structure, the tobacco tar is completely retained after passing through the multiple sharp corner structure, and does not flow out of the first port 011, and when the retained tobacco tar is excessive, flows back to the liquid storage bin 101 along the sharp corner structure.

In some embodiments, the flow inhibiting unit 014 further has a liquid flow guiding structure 0142, in effect the liquid flow guiding structure 0142 being adapted to direct liquid flow from the second port 012 to the first port 011, controlling the unidirectional flow of liquid within the microchannel 013, the utility model being applied in reverse to this, the liquid flow direction of said microchannel 013 being set from the second port 012 to the first port 011, thereby inhibiting the flow of tobacco tar from said first port 011 to the second port 012. As shown in fig. 3 to 5, the flow inhibiting units 014 of the flow blocking ventilation structure may have different shapes, but each of the flow inhibiting units 014 of different shapes may have a liquid flow direction guiding structure 0142, the liquid flow direction guiding structure 0142 being connected to a pointed structure, the liquid flow direction guiding structure 0142 helping to provide guidance for the flow direction of the liquid.

It should be noted that the implementation of the liquid flow direction guide structure 0142 is not exclusive. For example, it may be in the form of a linear guide, as shown in fig. 3 to 5; the guiding form of the arc type other than the line type shown in fig. 3 to 5 may be adopted, and the guiding form is also included in the description of the present embodiment.

As an example of the linear guide form of the liquid flow direction guide 0142, there are various layout directions of the liquid flow direction guide 0142. For example, there may be an oblique layout direction, and the liquid flow direction guide structure 0142 is inclined toward the central axis of the micro channel 013 in a direction along the second port 012 toward the first port 011, as shown in fig. 3 and 4; the liquid flow direction guide 0142 may be parallel to the central axis of the micro channel 013, as shown in fig. 5, instead of the inclined parallel arrangement shown in fig. 3 to 5. The liquid flow direction guide structures 0142 of the different layout directions described above can each provide guidance for the liquid in a direction along the second port 012 toward the first port 011.

In some embodiments, the projected pattern of the flow suppression unit 014 on the longitudinal section of the microchannel 013 has at least two line segments that are respectively connected to the boundary lines of the adjacent microchannels 013, the two line segments also intersecting to form the tips of the pointed structures. When the projection pattern of the flow suppressing unit 014 is composed of only two line segments, as shown in fig. 3 and 4, the formed single pointed structure can ensure the basic function of the micro channel 013, and the structure of the flow suppressing unit 014 is simplified at the same time, which contributes to cost reduction. When the projection pattern of the flow suppressing unit 014 is composed of more than two line segments, on the one hand, the layout directions of the liquid flow direction guiding structures 0142 are enriched, so that the liquid flow direction guiding structures 0142 can be laid out in parallel as shown in fig. 5; on the other hand, the number of sharp corner structures formed will not be limited to a single flow inhibiting unit 014 having a greater number of sharp corner structures, contributing to enhanced functionality of the microchannel 013.

It should be noted that, besides the number of the line segments described above, there are various arrangements, and there are various arrangements of the line segments. For example, the line segment form of the projection pattern may be a straight line, and the line segment form of the projection pattern may be a curved line, which falls within the scope of the present embodiment. The line segment form of the projection graph is a straight line, which has the advantage of facilitating the processing and forming of the choked flow ventilation structure.

In some embodiments, the intersection point of two line segments is taken as the vertex, and the included angle between the two line segments is smaller than 90 °. As shown in fig. 3 to 5, the pointed structures of the flow suppressing units 014 of different shapes are acute angles. In fig. 3 and 4, each of the current suppressing units 014 has a first line segment 01401 and a second line segment 01402, the first line segment 01401 faces the first port 011, the second line segment 01402 faces the second port 012, and the included angle B between the first line segment 01401 and the second line segment 01402 is an acute angle. In fig. 5, the current suppressing unit 014 has a first line segment 01401, a second line segment 01402 and a third line segment 01403, the first line segment 01401 faces the first port 011, the third line segment 01403 faces the second port 012, the second line segment 01402 is connected between the first line segment 01401 and the second line segment 01402, and an included angle B between the first line segment 01401 and the second line segment 01402 is an acute angle. The flow inhibiting units 014 all form sharp corner structures in an acute angle form, the acute angle is favorable for the flow blocking ventilation structure to realize the micro-channel flow blocking principle, and the realizability is strong.

In some embodiments, an extension of a line segment facing the first port 011 of the two line segments forms an angle of 90 ° or more with a section of the central axis of the microchannel 013 near the second port 012. As shown in fig. 3 to 5, the angles between the extension lines of the line segments of the flow suppressing units 014 facing the first port 011 and the section of the central axis of the microchannel 013 near the second port 012 are all 90 ° or more. In fig. 3, the flow suppressing unit 014 has a first line segment 01401 and a second line segment 01402, the first line segment 01401 faces the first port 011, the second line segment 01402 faces the second port 012, and an angle a between an extension line of the first line segment 01401 and a section of the central axis of the microchannel 013 near the second port 012 is a right angle. In fig. 4, the flow suppressing unit 014 has a first line segment 01401 and a second line segment 01402, the first line segment 01401 faces the first port 011, the second line segment 01402 faces the second port 012, and an angle a between an extension line of the first line segment 01401 and a section of the central axis of the microchannel 013 near the second port 012 is an obtuse angle. In fig. 5, the current suppressing unit 014 has a first line segment 01401, a second line segment 01402 and a third line segment 01403, the first line segment 01401 faces the first port 011, the third line segment 01403 faces the second port 012, the second line segment 01402 is connected between the first line segment 01401 and the second line segment 01402, and an included angle a between an extension line of the first line segment 01401 and a section of the central axis of the micro channel 013 near the second port 012 is an obtuse angle. The flow inhibiting units 014 all form a layout mode that the central axes of the first line segment 01401 and the micro-channel 013 are close to the second port 012 by a section to form a right angle or an obtuse angle, so that sharp angles formed by the first line segment 01401 and the second line segment 01402 face the first port 011 as much as possible, and a flow blocking ventilation structure is ensured to realize the micro-channel flow blocking principle.

In a specific implementation manner, the choked flow ventilation structure provided in this embodiment has an asymmetric feature, specifically, the structure of the micro channel 013 in the upstream and downstream directions of the liquid flow is asymmetric, that is, the flow suppressing unit 014 is a texture structure with asymmetric top and bottom, so that the choked flow ventilation structure can realize unidirectional restriction on the liquid; if the upper and lower structures are symmetrical, the capillary forces are also symmetrical and one-way restriction of the liquid will not be achieved.

On this basis, regarding the current suppressing units 014 on the micro-channel 013 as the object, for the current suppressing units 014 of a single group, the current suppressing units 014 may be arranged equidistantly or non-equidistantly on the micro-channel 013, which shall fall into the scope of the description of the present embodiment; for the plurality of groups of flow suppressing units 014, the flow suppressing units 014 of different groups may be uniformly distributed or unevenly distributed on the micro-channel 013, which shall fall within the scope of the present embodiment. In addition, the whole of the microchannel 013 and the flow suppressing unit 014 is taken as a target, that is, the flow-blocking ventilation structure may be a single number, a plurality of numbers or a plurality of numbers on the circumference of the liquid storage bin 101, and be symmetrically distributed based on the plurality of numbers, which shall fall within the scope of the description of the present embodiment.

For example, for the single-group flow inhibiting units 014, the flow inhibiting units 014 are uniformly distributed at equal intervals in the extending direction of the micro-channel 013, so that the intervals between any two adjacent flow inhibiting units 014 of the micro-channel 013 are equal, the intervals between any two adjacent pointed structures are equal, the action positions of the liquid in the axis direction of the micro-channel 013 are equal, and the liquid is prevented from flowing out of the liquid storage bin 101; at the same time, the spacing between any two adjacent fluid flow direction guiding structures 0142 is equal, so that the directions of the fluid in the axis direction of the micro-channel 013 are equal everywhere, which is helpful for guiding the fluid back to the reservoir 101.

For example, for the plurality of groups of flow inhibiting units 014, at least two groups of flow inhibiting units 014 are arranged on the circumference of the micro-channel 013, so that the micro-channel 013 can provide effects on the liquid in the micro-channel 013 at different circumferential positions, the coverage of the effects on the liquid is more comprehensive and sufficient, and the liquid is further helped to be blocked from flowing out of the liquid storage bin 101. Preferably, each group of flow inhibiting units 014 is mirror symmetrical about the central axis of the micro-channel 013, and thus, the micro-channel 013 can not only provide effects on the liquid in the micro-channel 013 at different circumferential positions, but also cover the liquid more uniformly, thereby further helping to prevent the liquid from flowing out of the liquid storage bin 101.

For example, for a plurality of choked flow ventilation structures, the choked flow ventilation structures are symmetrically distributed on the circumference of the liquid storage bin 101, so that on one hand, the liquid storage bin 101 can ventilate with the outside more positions, which is helpful for improving ventilation efficiency of the liquid storage bin 101; on the other hand, the liquid storage bin 101 is evenly distributed with the outside position of taking a breath, still helps improving the degree of consistency and the reliability of admitting air to liquid storage bin 101, avoids admitting air the position too concentrated, influences the normal use of liquid storage bin 101.

In some embodiments, at least a portion of the reservoir 101 is adjacent one side of the vent tube 2, the other side of the vent tube 2 is open to atmosphere, and at least a portion of the flow blocking ventilation structure is disposed on the vent tube 2.

In this embodiment, as shown in fig. 1, a liquid storage bin 101 and a vent pipe 2 are installed inside a housing 1, and the vent pipe 2 is located at the center of the liquid storage bin 101. The liquid storage bin 101 is adjacent to the outer wall of the ventilation pipe 2, at this time, the choke ventilation structure is arranged on the ventilation pipe 2, a first port 011 of the choke ventilation structure is communicated with the liquid storage bin 101 on the outer wall of the ventilation pipe 2, a second port 012 is communicated with the inside of the ventilation pipe 2 on the outer wall of the ventilation pipe 2, and a micro-channel 013 is communicated with the first port 011 and the second port 012 on the outer wall of the ventilation pipe 2. By the arrangement, on one hand, the original structure of the atomizer can be changed on the basis of the original structure of the atomizer, the original structure of the atomizer is changed to be small, the size consistency is ensured, and meanwhile, the transformation cost is saved; on the other hand, because the choke ventilation structure is arranged with the ventilation pipe 2, the ventilation pipe 2 is convenient to replace, and the replacement efficiency of the choke ventilation structure is improved synchronously.

In addition to the above embodiments, the liquid storage bin 101 and the ventilation pipe 2 may have other positional relationships; for example, the liquid storage bin 101 is located at the center of the ventilation pipe 2, which falls within the scope of the present embodiment. In addition, in addition to the above embodiments, the choke ventilation structure may be disposed between the ventilation pipe 2 and the ventilation pipe seal 3, which falls within the scope of the present embodiment.

Illustratively, the vent pipe 2 is in interference fit with the vent pipe seal 3, and the vent pipe seal 3 plays a role in sealing a gap between the vent pipe 2 and the housing 1, so as to prevent liquid in the liquid storage bin 101 from leaking at the joint of the vent pipe 2 and the housing 1. The choke ventilation structure is characterized in that a part of the choke ventilation structure is arranged on the ventilation pipe 2 and a part of the choke ventilation structure is arranged on the ventilation pipe sealing piece 3, and the ventilation pipe 2 and the ventilation pipe sealing piece 3 are combined to form a ventilation channel and the choke ventilation structure together.

Wherein the vent tube sealing member 3 is made of silica gel or other elastic/super-elastic materials; the whole interference fit or the interference fit of a plurality of ribs is adopted on the matching surface of the vent pipe 2 and the vent pipe sealing piece 3.

With continued reference to fig. 2, the choke ventilation structure is preferably disposed on the ventilation tube 2, so as to ensure uniformity of dimensions, and the choke ventilation structure is disposed on the ventilation tube 2 for illustration.

In some embodiments, the breather pipe 2 is provided with a liquid guiding hole 201, and the liquid guiding hole 201 is communicated with the liquid storage bin 101.

In this embodiment, the liquid guide hole 201 is used to guide the liquid in the liquid storage chamber 101 to the heating element in the ventilation pipe 2. Specifically, as shown in fig. 1, the oil guide cotton 4 and the heating wire 5 are installed inside the breather pipe 2, and the liquid guide hole 201 of the breather pipe 2 is located at one side of the oil guide cotton 4. When in use, liquid in the liquid storage bin 101 enters the vent pipe 2 through the liquid guide hole 201 and is absorbed in the oil guide cotton 4, the heating wire 5 heats the liquid in the oil guide cotton 4, the liquid is atomized to form aerosol after heating, and the aerosol is discharged after being discharged to an exhaust channel of the shell 1 in the vent pipe 2.

The first port 011 of the choke ventilation structure is divided into two arrangement cases according to the relationship with the liquid guiding hole 201.

In the first setting of the first port 011, the first port 011 is not in communication with the liquid-guiding hole 201, i.e., the first port 011 may be disposed at the non-liquid-guiding hole 201. Preferably, the first port 011 is located between two liquid guiding holes 201, which has the advantage that bubbles formed by the choke ventilation structure do not block the liquid guiding holes 201, so that liquid guiding is smoother.

In the second setting of the first port 011, the first port 011 communicates with the liquid-guiding hole 201; in the third arrangement of the first port 011, the first port 011 and the pilot hole 201 are the same structure. In the second and third arrangement described above, the first port 011 may be disposed beside or at the pilot hole 201 communicating with the pilot hole 201, and the arrangement of the first port 011 at the non-pilot hole 201 has advantages in that the processing performed on the breather pipe 2 can be reduced, the process is simplified, and the cost is reduced.

Further, the ventilation tube 2 is made of metal, and the micro-channel 013 of the choke ventilation structure is equivalent to a slot formed in the metal.

The choke ventilation structure has a different arrangement of the second port 012 on the ventilation pipe 2, in addition to the above description of the structures of the first port 011 and the micro channel 013.

In the first setting condition of the second port 012, the second port 012 is an orifice formed on the wall of the vent pipe 2, at this time, the position of the second port 012 on the vent pipe 2 is not limited, and the second port 012 at any position on the vent pipe 2 can enable the choke ventilation structure to communicate with the inside of the vent pipe 2 at the second port 012, that is, communicate with the atmosphere.

In the second arrangement of the second port 012, the second port 012 is a notch opened at the end face of the vent pipe 2, and at this time, the second port 012 needs to be provided at the end face of the vent pipe 2, because the second port 012 cannot communicate with the inside of the vent pipe 2, and therefore needs to communicate with the atmosphere at the end face of the vent pipe 2.

In this embodiment, the number of the choke ventilation structure and the liquid guiding holes 201 is not limited. The choke ventilation structure and the liquid guide holes 201 are arranged in a rotationally symmetrical mode, the liquid guide holes 201 enable liquid in the liquid storage bin 101 to be uniformly absorbed by the oil guide cotton 4, and the choke ventilation structure enables negative pressure to be quickly recovered through air inlet at different positions of the circumference of the liquid storage bin 101.

With continued reference to fig. 3-5, in some embodiments, the projected shape of the micro-channel 013 is fin, triangle, or tree.

In this embodiment, the projected shape of the micro-channel 013 may be the asymmetric pattern type such as fin shape, triangle shape, tree shape, etc. as listed above, the cross section may be rectangular, circular or other shape, and may be in a straight line, curve, or other complex arrangement as a whole.

In a specific embodiment, the choke ventilation structure inhibits leakage of liquid in ventilation process by an asymmetric capillary channel, and is applied to a ventilation channel part of the liquid storage bin 101 of the electronic atomizer and the outside, and mainly relates to a ventilation pipe 2, for example, a micro-channel 013 is arranged on the ventilation pipe 2. The micro-channel 013 is mainly characterized in that an asymmetric texture structure which is repeatedly arranged is constructed on the side surface of a common ventilation groove, the asymmetric groove structure can generate directional capillary action combined force, liquid is restrained from flowing in the opposite direction, the resistance of the liquid flowing in the forward direction in the channel is reduced, the micro-fluidic effect similar to a one-way valve is realized, and the micro-channel air-ventilation and leakage-proof capacity is good.

The utility model also provides an aerosol forming device, which is applied with the atomizer and has all the beneficial effects of the atomizer.

Specifically, as shown in fig. 1, the aerosol-forming apparatus includes a housing 1, a vent pipe 2, a vent pipe seal 3, an oil deflector 4, a heating wire 5, a bottom cover 6, an oil plug 7, a bottom cover seal 8, an electrode 9, and a battery stem member 10.

The housing 1 is combined with the bottom cover 6 as a single body, and the remaining components are installed in the single body. The inside of the shell 1 is provided with a liquid storage bin 101 for storing liquid and an exhaust channel communicated with the outside. The breather pipe 2 is arranged in the shell 1, the breather pipe 2 is sealed with the shell 1 at the joint through the breather pipe sealing piece 3, the inside of the breather pipe 2 is upwards communicated with the air outlet channel of the shell 1, and the outside of the breather pipe 2 is a liquid storage bin 101. The oil guide cotton 4 and the heating wire 5 are arranged in the breather pipe 2, the oil guide cotton 4 absorbs liquid in the liquid storage bin 101 through the liquid guide hole 201 of the breather pipe 2, and the liquid storage bin 101 heats the oil guide cotton 4, so that aerosol formed by atomization is discharged from the exhaust channel. The bottom cover seal 8 seals the reservoir 101 between the housing 1 and the bottom cover 6, and the oil plug 7 seals the opening in the bottom cover seal 8. An electrode 9 and a battery stem member 10 are mounted in the bottom cover 6 in conductive communication with the heater 5.

In the use process of the aerosol forming device, when the liquid is continuously consumed, the volume of the cavity of the liquid storage bin 101 in the shell 1 is increased, and negative pressure is continuously accumulated; when a certain value is accumulated, the second port 012 of the outside air flow blocking and ventilation structure enters the liquid storage bin 101 from the first port 011 through the micro-channel 013, so that the negative pressure is recovered, and the liquid in the liquid storage bin 101 is promoted to smoothly enter the oil cotton 4 through the liquid guide hole 201 and is heated and atomized by the heating wire 5; when the pressure is higher than the outside due to the heating in the liquid storage bin 101 or the extrusion from the outside, the liquid is subjected to the pinning action by the contact line with the wall surface of the micro-channel 013, so that the liquid can flow to the outside with larger resistance, and the effect of inhibiting the liquid from overflowing under a certain positive pressure of the liquid storage bin 101 can be realized.

It should be noted that many components mentioned in the present utility model are common standard components or components known to those skilled in the art, and the structures and principles thereof are known to those skilled in the art through technical manuals or through routine experimental methods.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The atomizer and the aerosol-forming device provided by the utility model are described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (12)

1. An atomizer, comprising:

the device comprises a shell, a liquid storage bin and a flow-resistant ventilation structure, wherein the liquid storage bin and the flow-resistant ventilation structure are arranged in the shell; the choke ventilation structure comprises:

the first port is communicated with the liquid storage bin;

a second port in communication with the atmosphere;

a microchannel connecting the first port and the second port;

and the flow inhibition unit is formed on the micro-channel and used for controlling the flow direction of the liquid and inhibiting the liquid from flowing from the first port to the second port.

2. The nebulizer of claim 1, wherein the flow suppression unit has a liquid flow direction control structure that generates a directional capillary force to act on the liquid.

3. The atomizer of claim 2 wherein said liquid flow direction control structure is a pointed structure.

4. The nebulizer of claim 2, wherein the projected pattern of the flow suppression unit on the longitudinal section of the microchannel has at least two line segments that also intersect to form the tip of the liquid flow direction control structure.

5. The nebulizer of claim 4, wherein an intersection of two line segments is taken as a vertex, and an angle between the two line segments is less than 90 °.

6. The nebulizer of claim 4, wherein an extension of a line segment facing the first port of the two line segments forms an angle of 90 ° or more with a section of the central axis of the microchannel near the second end.

7. The nebulizer of claim 4, wherein the line segment of the projected pattern is in the form of a straight line.

8. The atomizer of claim 1 wherein said flow inhibiting elements are equally spaced in the direction of extension of said microchannel.

9. The atomizer according to claim 1, wherein at least two sets of flow inhibiting units are provided in the circumferential direction of the microchannel.

10. The nebulizer of claim 1, wherein each set of flow suppression units is mirror symmetric about a central axis of the microchannel.

11. The nebulizer of any one of claims 1 to 10, wherein the flow-blocking ventilation structure is provided on the nebulization channel, the ventilation channel or the liquid supply channel.

12. Aerosol-forming device, characterized in that an atomizer according to any one of claims 1 to 11 is applied.