CN219845064U - Atomizer and electronic atomizing device - Google Patents
Atomizer and electronic atomizing device Download PDFInfo
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- CN219845064U CN219845064U CN202320995391.XU CN202320995391U CN219845064U CN 219845064 U CN219845064 U CN 219845064U CN 202320995391 U CN202320995391 U CN 202320995391U CN 219845064 U CN219845064 U CN 219845064U
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- 239000007788 liquid Substances 0.000 claims abstract description 449
- 239000011258 core-shell material Substances 0.000 claims abstract description 59
- 238000000889 atomisation Methods 0.000 claims abstract description 38
- 239000011550 stock solution Substances 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims description 43
- 238000000034 method Methods 0.000 claims description 10
- 239000006199 nebulizer Substances 0.000 claims description 7
- 239000011796 hollow space material Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009841 combustion method Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 16
- 239000000443 aerosol Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000003571 electronic cigarette Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
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- 230000002035 prolonged effect Effects 0.000 description 2
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
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- 208000023504 respiratory system disease Diseases 0.000 description 1
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- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of electronic atomization, and provides an atomizer and an electronic atomization device, wherein the atomizer comprises a shell, an atomization core, a sleeve, an air duct and an air return duct, an inner pipe part is arranged in the shell, the inner pipe part and the shell form a liquid storage cavity, and an air outlet channel is formed in the inner pipe part; the atomization core comprises a liquid guide and an atomization core shell, the atomization core shell is provided with an air return hole and a liquid inlet hole, the air return hole is closer to the air outlet channel than the liquid inlet hole, and the liquid guide is arranged in the atomization core shell; the sleeve pipe is connected on inner tube portion, and the sleeve pipe forms the interval space with the periphery wall that atomizing core shell contained the return air hole, and the air duct is installed on the sleeve pipe, is formed with capillary structure in air duct and interval space, and capillary structure intercommunication return air hole and stock solution chamber, and the return air pipe is connected on the air duct, forms the capillary passageway in the return air pipe, and capillary passageway intercommunication capillary structure and stock solution chamber through setting up sleeve pipe, air duct and return air pipe, reduces or eliminates the return air resistance, reduces the risk of taking place dry combustion method and promotes the suction taste.
Description
Technical Field
The utility model relates to the technical field of electronic atomization, in particular to an atomizer and an electronic atomization device.
Background
Electronic nebulizers generally include a nebulizer, which generally includes an air inlet channel, an air outlet channel, a liquid storage chamber for storing a nebulized liquid, and a nebulizing core in communication with the liquid storage chamber, and the nebulizing core generally includes a liquid guide and a heating element that are connected to each other. When the electronic atomization device works, atomized liquid in the liquid storage cavity is guided to the position of the heating body by the liquid guide body, aerosol is generated after the heating body heats the atomized liquid, and the aerosol flows out through the air outlet channel to be sucked by a user. The heating element can be in the form of metal heating wire, metal heating sheet, conductive ceramic heating element, and the liquid-guiding material can be cotton, porous ceramic, etc.
In the related art, after the atomized liquid in the liquid storage cavity is reduced due to guiding liquid, the internal pressure of the liquid storage cavity is reduced to form a certain negative pressure relative to the space in the air outlet channel communicated with the outside, and the negative pressure can increase the resistance of the atomized liquid in the subsequent guiding liquid guiding process, so that the user can smoothly guide the liquid guiding process for the subsequent atomized liquid, ensure that the user can suck the atomized liquid normally, and return air to the liquid storage cavity, namely, the outside air enters the liquid storage cavity through the micro-pores of the liquid guiding process, so that the air pressure in the liquid storage cavity is improved, and the negative pressure relative to the outside environment in the liquid storage cavity is reduced. The external environment herein refers to the space in the gas channel and the outside communicating with the gas channel.
However, in the air return process of the atomizer, air guided to the liquid storage cavity needs to permeate into the liquid storage cavity through liquid guiding, namely, a liquid guiding path of atomized liquid in the liquid storage cavity for guiding the liquid guiding and an air return path of external air in the liquid storage cavity through the liquid guiding are identical, and the flowing directions of the liquid guiding path and the air return path are opposite, so that the atomized liquid in the liquid storage cavity is prevented from guiding the liquid guiding by pressure generated by air to be fed into the liquid storage cavity to a liquid inlet of the liquid storage cavity wall, gravity of the atomized liquid in the liquid guiding and the pressure generated by the atomized liquid in the liquid guiding to the liquid inlet also prevent the air from entering the liquid storage cavity, the air cannot smoothly enter the liquid storage cavity, the atomized liquid at the liquid guiding position is difficult to be timely supplemented after being consumed, and a dry burning phenomenon is generated, the sucking taste of a user is reduced, and a heating element burns out the liquid guiding body when the dry burning phenomenon is serious.
Disclosure of Invention
The utility model aims to provide an atomizer and an electronic atomization device, which can reduce or eliminate resistance of return air, reduce risk of liquid shortage and dry combustion of liquid guide and improve suction taste of a user by arranging a sleeve, an air duct and an air return pipe.
To achieve the above object, the present utility model provides an atomizer comprising:
the shell is internally provided with an inner pipe part, a liquid storage cavity is formed by enclosing between the outer wall of the inner pipe part and the inner wall of the shell, an air outlet channel is formed by enclosing the inner wall of the inner pipe part, and an air outlet communicated with the air outlet channel is formed in the shell;
the atomization core is arranged in the shell and is connected with one end, far away from the air outlet, of the inner pipe part, the atomization core comprises a liquid guide and a hollow atomization core shell, at least one air return hole and at least one liquid inlet hole are formed in the atomization core shell in a penetrating mode, the air return hole is closer to the air outlet channel than the liquid inlet hole, the liquid guide is arranged in a hollow space of the atomization core shell and is in contact connection with the air return hole and the inner side wall of the atomization core shell at the liquid inlet hole, and the air return hole and the liquid inlet hole are respectively communicated with the liquid guide and the liquid storage cavity;
one end of the sleeve is connected to the outer peripheral wall of the inner pipe part, the other end of the sleeve extends towards the direction away from the air outlet, and the inner peripheral wall of the sleeve and the outer peripheral wall of the atomizing core shell, which comprises an air return hole, are oppositely arranged at intervals to form an interval space;
The air duct is at least one, one end of the air duct is arranged on the sleeve and is communicated with the interval space, the other end of the air duct extends to one end of the liquid storage cavity close to the air outlet, at least one capillary structure is formed in the air duct and the interval space, and the capillary structure is communicated with the air return hole; and
the air return pipe is at least one, the air return pipe is connected to one end of the air guide pipe, which is close to the air outlet, a capillary channel is formed in at least part of the air return pipe, and the capillary channel is communicated with the capillary structure and the liquid storage cavity.
Further, the distance between the capillary structures is a first distance, at least one air guide channel with a second distance is formed in the air guide pipe and the interval space, the first distance is smaller than the second distance, and the maximum distance between the capillary channels along the radial direction of the air return pipe is smaller than the second distance.
Further, a section of the capillary structure is formed in one end, close to the sleeve, of the air duct, the air duct is formed in one end, far away from the sleeve, of the air duct, and the air return hole, the interval space, the capillary structure, the air duct, the capillary channel and the liquid storage cavity are sequentially communicated and form an air return path; or alternatively, the process may be performed,
The space is internally provided with a section of capillary structure at least partially, the part except the capillary structure in the air duct and the space is respectively provided with an air guide channel, and the air return hole, the capillary structure, the air guide channel, the capillary channel and the liquid storage cavity are sequentially communicated and form an air return path.
Further, the capillary structure is a capillary gap, wherein:
when the capillary gap is formed in the air duct, the width of the capillary gap along the radial direction of the air duct is the first interval, the first interval is 0.1mm-1mm, and the length of the capillary gap along the axial direction of the air duct is more than or equal to 3mm; or alternatively, the process may be performed,
when the capillary gap is formed in the interval space, the width of the capillary gap along the radial direction of the atomizing core shell is the first interval, the first interval is 0.1mm-1mm, and the length of the capillary gap along the axial direction of the atomizing core shell is more than or equal to 3mm.
Further, the capillary structure is a capillary groove extending along the axial direction of the atomizing core shell, and when the capillary groove is formed in the interval space, the cross-sectional area of the capillary groove along the radial direction of the atomizing core shell is 0.03mm 2 -3.14mm 2 And the cross-sectional area of the capillary groove is smaller than the cross-sectional area of the air guide channel along the radial direction of the atomizing core shell.
Further, the distance between the capillary channels along the radial direction of the air return pipe is 0.2mm-2mm, the length of the capillary channels along the axial direction of the air return pipe is more than or equal to 3mm, and the distance between the capillary channels is equal to or unequal to the first distance.
Further, the cross-sectional area of the capillary channel along the radial direction of the muffler is 0.03mm 2 -3.14mm 2 The cross-sectional area of the capillary channel is equal to or unequal to the cross-sectional area of the capillary groove.
Further, in the axial direction along the atomizing core shell, one end that the sleeve pipe kept away from the gas outlet is towards the bottom of atomizer extends to partly shelter from in the periphery of feed liquor hole, wherein:
when the interval space is formed by the relative interval arrangement between the inner peripheral wall of the sleeve and the outer peripheral wall of the atomizing core shell, which comprises the air return hole and the liquid inlet hole, the interval space is communicated with the air duct; or alternatively, the process may be performed,
when the interval space is a space formed by the relative interval arrangement between the inner peripheral wall of the sleeve and the outer peripheral wall of the air return hole, which is formed by the relative interval arrangement, of the atomizing core shell, the interval space is communicated with the liquid guide space and the air guide pipe, which are formed by the relative interval arrangement between one side, close to the bottom of the atomizer, of the air return hole and the outer peripheral wall of the liquid inlet hole, of the atomizing core shell.
Further, one end of the shell, which is away from the air outlet, is provided with a mounting port;
the atomizer further comprises a first base and a second base, wherein the first base is arranged in the shell, the second base is arranged at the mounting opening, one end of the atomizing core shell, which is away from the inner pipe part, is connected with the first base, the shell, the inner pipe part and the first base are enclosed to form the liquid storage cavity, an air inlet hole communicated with the air outlet channel is formed in the first base, an air inlet is formed in the side wall of the shell, which is positioned between the first base and the second base, and the air inlet is communicated with the air inlet;
the one end of first base keeping away from the air inlet is protruding to be equipped with barb portion, barb portion orientation stock solution intracavity is buckled and is set up, barb portion with the sleeve pipe is kept away from the one end lateral wall of gas outlet sets up and forms the inlet at intervals, just barb portion with form the feed liquor space between the first base, feed liquor space intercommunication the inlet with the feed liquor hole.
To achieve the above object, the present utility model provides an electronic atomizing device including the atomizer described in the above embodiment.
The atomizer and the electronic atomization device provided by the utility model have the beneficial effects that:
the atomizer provided by the embodiment of the utility model comprises a shell, an atomizing core, a sleeve, at least one air duct and at least one air return duct. The shell is internally provided with an inner pipe part, a liquid storage cavity is formed by enclosing between the outer wall of the inner pipe part and the inner wall of the shell, an air outlet channel is formed by enclosing the inner wall of the inner pipe part, and an air outlet communicated with the air outlet channel is arranged on the shell. The atomizing core is located in the shell and is connected with the one end that the gas outlet was kept away from to interior pipe portion, and the atomizing core includes liquid guide and hollow atomizing core shell, wears to be equipped with at least one return air hole and at least one feed liquor hole on the atomizing core shell, and the feed liquor hole compares the feed liquor hole and is close to the passageway of giving vent to anger, and liquid guide is built-in the cavity space of atomizing core shell to contact with the inside wall of atomizing core shell of return air hole department and feed liquor hole department and be connected, return air hole and feed liquor hole are respectively intercommunication liquid guide and stock solution chamber. One end of the sleeve is connected to the outer peripheral wall of the inner pipe part, the other end of the sleeve extends towards the direction away from the air outlet, and the inner peripheral wall of the sleeve and the outer peripheral wall of the atomizing core shell, which comprises an air return hole, are oppositely arranged at intervals to form an interval space. One end of the air duct is arranged on the sleeve and is communicated with the interval space, the other end of the air duct extends to one end of the liquid storage cavity close to the air outlet, at least one capillary structure is formed in the air duct and the interval space, and the capillary structure is communicated with the air return hole. The air return pipe is connected to one end of the air guide pipe, which is close to the air outlet, and a capillary channel is formed in the air return pipe at least partially, and the capillary channel is communicated with the capillary structure and the liquid storage cavity. According to the technical scheme, the capillary structure can be arranged in the air duct, can be arranged in the interval space, or can be arranged in the air duct and the interval space; and, the whole tube inner space of the muffler can be formed with a capillary channel, or a part of the tube inner space of the muffler is formed with a capillary channel. At this time, because the gas return hole is closer to the gas outlet channel than the liquid inlet hole, namely, the gas return hole is closer to the position above the atomizer than the liquid inlet hole in the axial direction of the atomizing core shell, the pressure of liquid in the liquid storage cavity received by the gas return hole is smaller than the hydraulic pressure in the liquid storage cavity received by the liquid inlet hole, namely, the liquid pressure difference exists between the gas return hole and the liquid inlet hole. Therefore, compared with the liquid inlet hole, the external air is easier to enter into a spacing space formed between the inner peripheral wall of the sleeve and the outer peripheral wall of the atomization core shell, which is provided with the air return hole, and then enters into a capillary channel formed in the air return pipe through the capillary structure and the air guide pipe, and finally the external air enters into the liquid storage cavity. At the liquid inlet hole, the liquid pressure received by the liquid inlet hole is larger than the liquid pressure received by the air return hole, so that atomized liquid in the liquid storage cavity can be more easily led into the liquid guide through the liquid inlet hole.
At least one capillary structure is formed in the air duct and at least one capillary channel is formed in the air duct due to the interval space formed between the inner peripheral wall of the sleeve and the outer peripheral wall of the atomization core shell, wherein the interval space and the outer peripheral wall of the air duct are arranged on the sleeve, and at the moment, external air can enter the liquid storage cavity through the air duct, the interval space, the at least one capillary structure formed in the air duct and the capillary channel formed in the air duct. When the atomized liquid in the liquid storage cavity flows into the liquid guide from the liquid inlet hole, the atomized liquid can flow into the air return hole or the air guide pipe through the interval space, the capillary structure formed in the air guide pipe and the capillary channel formed in the air return pipe, but the atomized liquid flowing into the capillary structure is subjected to the air resistance of the capillary structure and the capillary channel, so that the atomized liquid cannot completely fill the whole capillary structure and the whole capillary channel. In this way, the atomized liquid cannot reach the air return hole and enter the air guide pipe due to the air resistance of at least one capillary structure formed in the interval space and the air guide pipe and the capillary channel formed in the air return pipe, and in addition, because the air return hole is positioned closer to the air outlet channel than the liquid inlet hole, that is, the air return hole is positioned at a higher position than the liquid inlet hole in the axial direction of the atomized core shell, the pressure of the liquid in the liquid storage cavity received by the air return hole is smaller than the hydraulic pressure in the liquid storage cavity received by the liquid inlet hole, so that the external air can smoothly pass through the air return hole, the interval space and the at least one capillary structure formed in the air guide pipe and the capillary channel formed in the air return pipe to enter the liquid storage cavity; in contrast, since the pressure of the liquid received at the liquid inlet is greater than the hydraulic pressure received at the air return hole, only a small portion of the gas or even no gas enters the liquid storage cavity through the liquid inlet, and when the atomized liquid in the liquid storage cavity is introduced into the liquid guide body through the liquid inlet, the gas resistance of the atomized liquid is small or even no gas resistance is received, so that the atomized liquid can more smoothly flow into the liquid guide body through the liquid inlet. From the above, the liquid guiding path for guiding the atomized liquid in the liquid storage cavity through the liquid inlet hole and the external air are two mutually independent different paths through at least one capillary structure formed in the air return hole, the interval space and the air guide pipe, and the air return path of the capillary channel formed in the air return pipe for returning air to the liquid storage cavity, and the liquid pressure difference exists between the air return hole and the liquid inlet hole, the liquid pressure received by the liquid inlet hole is larger than the liquid pressure received by the air return hole, so that the atomized liquid can break through the resistance of the gas to be introduced into the liquid storage cavity more easily and is guided into the liquid guide, the outside air can continuously enter the liquid storage cavity through at least one capillary structure formed in the air return hole, the interval space and the air guide pipe and the capillary channel formed in the air return pipe, so that the air pressure in the liquid storage cavity can be continuously in a state of keeping air pressure balance with the external air pressure in the air outlet channel, atomized liquid in the liquid storage cavity can be continuously led into the liquid guide through the liquid inlet hole, the problem that timely replenishment is difficult to obtain after the atomized liquid in the liquid guide is consumed is avoided, the risk of damage caused by long-time liquid shortage and dry combustion of the liquid guide is reduced, the service life of the liquid guide and the taste of sucking are prolonged, and the whole service life of the atomizer is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a atomizer according to an embodiment of the present utility model;
FIG. 2 is a top view of the atomizer of FIG. 1;
FIG. 3 is a cross-sectional view of the first embodiment of the atomizer of FIG. 2 taken along the direction A-A;
FIG. 4 is an enlarged view of a portion B of FIG. 3;
FIG. 5 is a cross-sectional view of a atomizer according to a second embodiment of the utility model;
FIG. 6 is an enlarged view of a portion of the first structure C-1 of section C of FIG. 5;
fig. 7 is an enlarged view of a portion of a second structure C-2 of section C of fig. 5.
Reference numerals illustrate:
100-shell, 110-inner pipe part, 120-liquid storage cavity, 130-air outlet channel, 140-air outlet, 170-mounting port and 180-air inlet;
200-atomizing cores, 210-liquid guiding, 220-atomizing core shells, 221-air return holes and 222-liquid inlet holes;
310-sleeve, 320-air duct, 311-interval space, 312-wall surface, 323-liquid guide space, 330-capillary structure, 331-capillary gap, 332-capillary groove and 340-air guide channel;
400-muffler, 410-capillary channel;
500-a first base, 510-an air inlet hole, 520-a barb part, 530-a liquid inlet and 540-a liquid inlet space;
600-a second base;
1000-liquid free space;
l1-first pitch, L2-second pitch.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, the terms "size," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more features, either explicitly or implicitly. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In addition, if "and/or", "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B ", including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The embodiment of the utility model provides an atomizer which can be particularly used in the fields of medical treatment, electronic cigarettes and the like. In a specific embodiment, the atomizer can be used as an electronic cigarette for atomizing tobacco tar and generating aerosol for use by a smoker, as exemplified in the following embodiments. Of course, in other embodiments, the nebulizer may also be applied to medical devices for treating upper and lower respiratory diseases to nebulize medical drugs, which is not limited in the present utility model.
As shown in connection with fig. 1-5, the atomizer comprises a housing 100, an atomizing core 200, a sleeve 310, at least one air duct 320, and at least one air return duct 400.
The inside of the shell 100 is provided with an inner pipe 110, a liquid storage cavity 120 for storing atomized liquid is formed between the outer wall of the inner pipe 110 and the inner wall of the shell 100, an air outlet channel 130 is formed in the inner periphery of the inner pipe 110, and an air outlet 140 communicated with the air outlet channel 130 is arranged on the shell 100.
The atomizing core 200 is provided in the housing 100, and the atomizing core 200 is connected to an end of the inner pipe 110 remote from the air outlet 140. The atomizing core 200 includes a liquid guiding body 210 and a hollow atomizing core shell 220, at least one air return hole 221 and at least one liquid inlet hole 222 are perforated on the atomizing core shell 220, the air return hole 221 is closer to the air outlet channel 130 than the liquid inlet hole 222, the liquid guiding body 210 is arranged in the hollow space of the atomizing core shell 220 and is in contact connection with the air return hole 221 and the inner side wall of the atomizing core shell 220 at the liquid inlet hole 222, and the air return hole 221 and the liquid inlet hole 222 are respectively communicated with the liquid guiding body 210 and the liquid storage cavity 120.
One end of the sleeve 310 is connected to the outer peripheral wall of the inner tube 110, the other end of the sleeve 310 extends away from the air outlet 140, and the inner peripheral wall of the sleeve 310 and the outer peripheral wall of the atomizing core 220 including the air return hole 221 are disposed at opposite intervals to form an interval space 311.
One end of the air duct 320 is mounted on the sleeve 310, and the space inside the air duct 320 is communicated with the space 311, the other end of the air duct 320 extends to one end of the liquid storage cavity 120 near the air outlet 140, at least one capillary structure 330 is formed in the air duct 320 and the space 311, and the capillary structure 330 is communicated with the air return hole 221.
The air return pipe 400 is connected to one end of the air guide pipe 320 near the air outlet 140, and a capillary channel 410 is at least partially formed in the air return pipe 400, and the capillary channel 410 communicates the capillary structure 330 with the liquid storage cavity 120.
In the embodiment of the present application, the inner tube 110 is disposed in the outer shell 100, and when the embodiment is implemented, the outer shell 100 and the inner tube 110 may be in an integrally formed structure or a split structure. The air outlet 140 is formed on the housing 100, the air outlet 140 is communicated with the air outlet channel 130 formed by the inner periphery of the inner tube 110, and the aerosol generated after the atomized liquid is heated and atomized sequentially passes through the air outlet channel 130 and the air outlet 140 to be led out to the outside for the user to inhale.
The fact that the air return hole 221 is closer to the air outlet channel 130 than the liquid inlet hole 222 means that the air return hole 221 and the liquid inlet hole 222 are arranged at intervals along the axial direction of the atomization core shell 220, the air return hole 221 is arranged above the liquid inlet hole 222, one end of the liquid inlet hole 222 close to the air outlet 140 is arranged above the liquid inlet hole 222, namely, the position of the air return hole 221 and the position of the liquid inlet hole 222 have a height difference in the liquid storage cavity 120, and therefore the pressure of liquid in the liquid storage cavity 120 received by the air return hole 221 is smaller than the pressure in the liquid storage cavity 120 received by the liquid inlet hole 222, namely, a liquid pressure difference exists between the air return hole 221 and the liquid inlet hole 222. Therefore, compared with the liquid inlet 222, the external air is easier to enter the space 311 formed between the inner peripheral wall of the sleeve 310 and the outer peripheral wall of the atomizing core 220 including the liquid return hole 221 from the liquid return hole 221, then enter the capillary channel 410 formed in the liquid return pipe 400 through the capillary structure 330 and the air guide pipe 320, and finally enter the liquid storage cavity 120. At the liquid inlet 222, the liquid inlet 222 receives a larger liquid pressure than the air return 221, so that the atomized liquid in the liquid storage chamber 120 can be more easily introduced into the liquid guide 210 through the liquid inlet 222. In the embodiment of the present application, the number of the air return holes 221 may be one or more, the number of the liquid inlet holes 222 may be one, and the number of the air return holes 221 and the number of the liquid inlet holes 222 may be equal or unequal, which is not limited herein.
The liquid guide 210 arranged in the hollow space of the atomization core shell 220 is in contact connection with the inner side wall of the atomization core shell 220 at and around the air return hole 221 on the atomization core shell 220 and the inner side wall of the atomization core shell 220 at and around the liquid inlet 222 on the atomization core shell 220, so that the liquid guide 210 can completely shield the air return hole 221 and the liquid inlet 222, and the air return hole 221 can be communicated with the liquid guide 210 and the liquid storage cavity 120, and the liquid inlet 222 can also be communicated with the liquid guide 210 and the liquid storage cavity 120.
Preferably, in the embodiment of the present application, the liquid guide 210 is closely contacted with the inner sidewall of the atomizing core shell 220 at the air return hole 221 and the liquid inlet hole 222, so that leakage of the atomized liquid can be prevented. More preferably, in the embodiment of the present application, the outer periphery of the liquid guide 210 may be in contact with the inner side wall of the atomizing core shell 220, and since the liquid guide 210 has a certain liquid storage function, when the outer periphery of the liquid guide 210 and the inner side wall of the atomizing core shell 220 are in contact with each other, the effect of preventing the dry combustion of the atomizing core 200 in the state of no or little liquid in the liquid storage cavity 120 can be achieved. Further, when the outer circumference of the entire liquid guide 210 is in close contact with the inner sidewall of the atomizing core housing 220, the leakage of the atomizing core 200 can be prevented.
In the embodiment of the present application, one end of the sleeve 310 is the end of the sleeve 310 close to the air outlet 140, namely, the upper end of the sleeve 310; the other end of the sleeve 310 is the end of the sleeve 310 away from the air outlet 140, i.e., the lower end of the sleeve 310. One end of the sleeve 310 will be referred to as an upper end portion of the sleeve 310, and the other end of the sleeve 310 will be referred to as a lower end portion of the sleeve 310. The upper end portion of the sleeve 310 is sealed to the outer peripheral wall of the inner tube portion 110, and preferably the upper end portion of the sleeve 310 is sealed to the outer peripheral wall of the lower end portion of the inner tube portion 110. The lower end portion of the sleeve 310 extends in a direction away from the air outlet 140, and a space 311 is formed between the inner peripheral wall of the lower end portion of the sleeve 310 and the outer peripheral wall of the atomizing core housing 220 including the air return hole 221. In this embodiment, since the inner peripheral wall of the lower end portion of the sleeve 310 is disposed at a distance from the outer peripheral wall of the atomizing core shell 220 at the air return hole 221, the lower end portion of the sleeve 310 can be shielded from the outer periphery of the air return hole 221, so that the external air can directly enter the space 311 from the air return hole 221.
In the embodiment of the present application, one end of the air duct 320 is the end of the air duct 320 close to the sleeve 310, namely the lower end of the air duct 320; the other end of the air duct 320 is the end of the air duct 320 far away from the sleeve 310, namely the upper end of the air duct 320. The lower end portion of the air duct 320 is attached to the sleeve 310, and for example, as shown in fig. 3, the lower end portion of the air duct 320 is inserted into a wall surface 312 of the sleeve 310 extending toward the inner wall of the housing 100 in the radial direction of the sleeve 310. The lower end of the air duct 320 is connected to the space 311, that is, the lower end of the air duct 320 is inserted through the wall surface 312 of the sleeve 310, so that the space inside the air duct 320 is connected to the space 311. The upper end of the air duct 320 extends to an end of the liquid storage chamber 120 near the air outlet 140. It should be noted that, the number of the air ducts 320 may be one or more, and when the number of the air ducts 320 is plural, the plurality of air ducts 320 are inserted in the wall surface 312 of the sleeve 310 at intervals along the circumferential direction of the sleeve 310.
At least one capillary structure 330 is formed in the space 311 formed between the inner peripheral wall of the sleeve 310 and the outer peripheral wall of the atomizing core 220 including the air return hole 221, and in the embodiment of the present application, the capillary structure 330 may be arranged in several ways, one is that the capillary structure 330 is formed in the space 311, the other is that the capillary structure 330 is formed in the air guide pipe 320, and the other is that the capillary structure 330 is formed in the space 311 and the air guide pipe 320. Of course, the number of the capillary structures 330 in the present embodiment may be plural, for example: a section of capillary structure 330 is formed in the space 311, and two sections of capillary structures 330 are formed in the air duct 320, which is not limited herein.
The capillary structure 330 has the function that after the external air enters the capillary structure 330, capillary air resistance can be formed in the capillary structure 330, at this time, atomized liquid in the liquid storage cavity 120 cannot flow in the capillary structure 330 due to the blocking of the capillary air resistance in the capillary structure 330, and the capillary air resistance formed in the capillary structure 330 cannot influence the flow of the gas, i.e. the external air can still flow in the capillary structure 330. In other words, the capillary structure 330 is a "liquid-tight ventilation" structure, so that the external air can directly flow into at least one capillary structure 330 formed in the space 311 and the air duct 320 through the air return hole 221.
In the embodiment of the present application, when the upper end of the air duct 320 is a closed port or the upper end of the air duct 320 is connected with the top inner wall of the liquid storage cavity 120 in a sealing manner, the air return pipe 400 is connected to the side wall of the upper end of the air duct 320, and the space inside the air return pipe 400 is communicated with the space inside the air duct 320. It should be noted that, the air return pipes 400 may be straight pipes, bent pipes or other irregular pipes, and the number of the air return pipes 400 and the number of the air guide pipes 320 may be set to be equal, or may also be set to be unequal, for example: one air duct 320 may have 2 or more air return ducts 400 connected thereto, and the like, and is not limited thereto.
The capillary passage 410 is at least partially formed in the muffler 400, and two arrangements are possible, one in which the capillary passage 410 is formed in the entire space in the muffler 400 and the other in which the capillary passage 410 is formed in a part of the space in the muffler 400. In this embodiment, the capillary passage 410 functions in the same manner as the capillary structure 330 described above, and the capillary passage 410 is a "vent-to-liquid" passage, so that the external air can enter the liquid storage chamber 120 from the air return hole 221, the at least one capillary structure 330 formed in the space 311 and the air duct 320, and the capillary passage 410 formed in the air return duct 400 in this order, thereby returning the air into the liquid storage chamber 120.
It should be noted that, in the technical field of electronic atomization, the term "back air" refers to that when the total pressure of the gas and the liquid in the liquid storage cavity 120 is smaller than the external gas pressure in the air outlet channel 130 connected to the outside, the air in the liquid storage cavity 120 generates a negative pressure with respect to the air outlet channel 130, and as the pressure in the liquid storage cavity 120 is continuously reduced, the negative pressure is continuously increased, and when the negative pressure reaches a certain threshold value, the pressure of the external gas breaks through the pressure in the liquid storage cavity 120 and enters into the liquid storage cavity 120 through the opening on the side wall of the atomization core shell 220, that is, the external gas enters into the liquid storage cavity 120. The pressure in the reservoir 120 includes the pressure of the gas against the atomized liquid, the pressure of the atomized liquid against the sidewall of the atomizing core 220, and the gravity of the atomized liquid itself. After the external air returns to the liquid storage cavity 120, the pressure in the liquid storage cavity 120 is increased again, so that the air pressure outside the liquid storage cavity 120 and the pressure in the liquid storage cavity 120 are restored to the balance state again, and the atomized liquid in the liquid storage cavity 120 can flow out again.
It should be noted that, after the atomized liquid is injected into the liquid storage cavity 120, the space in the liquid storage cavity 120 is not completely filled with the atomized liquid, that is, a liquid-free space 1000 is formed between the liquid surface of the atomized liquid and the top of the liquid storage cavity 120. The function of the liquid-free space 1000 is to store a part of air, so that the liquid-free space 1000 has certain air pressure, and when the atomizer is in an unused state, the air pressure in the liquid-free space 1000, the air pressure in the air outlet channel 130 and the external atmospheric pressure basically keep static balance, so that the problem of leakage of the atomized liquid in the liquid storage cavity 120 can be prevented; when the atomizer is in use, the flow rate of the gas increases due to the suction of the user in the gas outlet channel 130, so that the air pressure of the gas in the gas outlet channel 130 is reduced, a pressure difference is generated between the reduced air pressure in the gas outlet channel 130 and the air pressure in the liquid-free space 1000, and a negative pressure is formed, under the action of the negative pressure, the atomized liquid in the liquid storage cavity 120 is continuously introduced into the liquid guide 210 through the liquid inlet 222, so that the atomized core 200 is heated and atomized to generate smoke and is supplied to a suction person who is sucking. On the contrary, if the liquid-free space 1000 is not provided, that is, the liquid storage cavity 120 is filled with atomized liquid, at this time, the inside of the whole liquid storage cavity 120 is in a vacuum state, when the atomizer is in a use state, no matter how the air pressure in the air outlet channel 130 changes, because the air pressure in the whole liquid storage cavity 120 is zero, that is, the air pressure in the air outlet channel 130 does not generate negative pressure relative to the liquid storage cavity 120, the atomized liquid in the liquid storage cavity 120 is not led into the liquid guide 210 through the liquid inlet 222, so that the liquid guide 210 has the problem of liquid shortage and dry combustion.
Thus, in the embodiment of the present application, it is preferable that the upper end portion of the air duct 320 extends to the end of the liquid storage chamber 120 near the air outlet 140, and the upper end portion of the air duct 320 is disposed in the liquid-free space 1000, and when the air return duct 400 is connected to the upper end portion of the air duct 320, the air return duct 400 is also disposed in the liquid-free space 1000. This is to allow the air return pipe 400 to be disposed above the surface of the atomized liquid in the liquid storage chamber 120, that is, the end of the air return pipe 400 remote from the upper end of the air guide pipe 320 is directly communicated with the liquid-free space 1000. Then, the external air enters into the space 311 formed between the inner peripheral wall of the sleeve 310 and the outer peripheral wall of the atomizing core 220 including the air return hole 221 from the air return hole 221, then enters into the capillary channel 410 formed in the air return pipe 400 through the capillary structure 330 and the air guide pipe 320, and finally enters into the liquid-free space 1000, so as to increase the air pressure of the air in the liquid-free space 1000, thereby increasing the air pressure in the liquid storage cavity 120. In addition, the air return pipe 400 is arranged in the liquid-free space 1000, and because no atomized liquid exists in the liquid-free space 1000, the atomized liquid in the liquid storage cavity 120 can be prevented from flowing into the air guide pipe 320 from the air return pipe 400, so that the external air can flow into the liquid-free space 1000 more smoothly, and the air pressure of the air in the liquid-free space 1000 can be increased more rapidly.
In the embodiment of the present application, when the atomized liquid in the liquid storage cavity 120 flows into the liquid guide 210 from the liquid inlet 222, the atomized liquid also flows into the air return hole 221 or the air guide 320 through the at least one capillary structure 330 formed in the space 311 and the air guide 320 and through the capillary channel 410 formed in the air return pipe 400, but the atomized liquid flowing into the capillary structure 330 is not completely filled in the whole capillary structure 330 and the whole capillary channel 410 due to the air resistance of the capillary structure 330 and the capillary channel 410. In this way, the atomized liquid cannot reach the air-returning hole 221 and enter the air-guiding tube 320 due to the air-blocking effect of the at least one capillary structure 330 formed in the spacing space 311 and the air-guiding tube 320 and the capillary channel 410 formed in the air-returning tube 400, and in addition, since the air-returning hole 221 is located closer to the air-outlet channel 130 than the liquid-inlet hole 222, that is, the air-returning hole 221 is located higher than the liquid-inlet hole 222 in the axial direction of the atomized core 220, the pressure of the liquid in the liquid storage chamber 120 received at the air-returning hole 221 is smaller than the liquid pressure in the liquid storage chamber 120 received at the liquid-inlet hole 222, so that the external air can smoothly pass through the air-returning hole 221, the at least one capillary structure 330 formed in the spacing space 311 and the air-guiding tube 320 and the capillary channel 410 formed in the air-returning tube 400 and enter the liquid storage chamber 120. Of course, even if the atomized liquid is filled in the capillary structure 330, the liquid pressure difference exists in the liquid storage chamber 120 due to the liquid return hole 221 and the liquid inlet hole 222, that is, most of the gas more easily enters the space 311 from the liquid return hole 221 with smaller liquid pressure, and the capillary channel 410 formed in the at least one capillary structure 330 and the liquid return pipe 400 formed in the gas guide pipe 320, and then flows into the liquid storage chamber 120. In contrast, since the pressure of the liquid in the liquid storage chamber 120 received at the liquid inlet 222 is greater than the hydraulic pressure in the liquid storage chamber 120 received at the air return 221, only a small portion of the gas or even no gas enters the liquid storage chamber 120 through the liquid inlet 222, and the atomized liquid in the liquid storage chamber 120 is subjected to little or no gas resistance when being introduced into the liquid guide 210 through the liquid inlet 222, and thus can flow into the liquid guide 210 through the liquid inlet 222 more smoothly. As can be seen from the above, the atomized liquid in the liquid storage cavity 120 is led into the liquid guide 210 through the liquid inlet 222, the liquid guide path and the external air sequentially pass through the air return hole 221, the spacing space 311 and at least one capillary structure 330 formed in the air guide pipe 320, and the air return path of the capillary channel 410 formed in the air return pipe 400 to return air in the liquid storage cavity 120 are two mutually independent paths, and a liquid pressure difference exists between the air return hole 221 and the liquid inlet 222, the liquid pressure received at the liquid inlet 222 is greater than the liquid pressure received at the air return hole 221, so that the atomized liquid can more easily break through the resistance of the air to enter the liquid guide 210, and the external air can more smoothly enter the liquid storage cavity 120 continuously through the air return hole 221, the spacing space 311 and the at least one capillary structure 330 formed in the air guide pipe 320, and the capillary channel 410 formed in the air return pipe 400, thereby ensuring that the air pressure in the liquid storage cavity 120 can be kept in a state balanced with the external air pressure in the air outlet channel 130, further ensuring that the atomized liquid can be led into the liquid guide 210 through the air return hole 311, and the liquid guide 210 can be prevented from being damaged by the liquid guide 210, and the problem of long life of the atomized liquid guide 210 can be avoided.
Further, referring to fig. 4, the capillary structure 330 has a first pitch L1, and at least one air guide channel 340 having a second pitch L2 is further formed in the air guide tube 320 and the space 311, the first pitch L1 of the capillary structure 330 is smaller than the second pitch L2 of the air guide channel 340, and the maximum pitch of the capillary channel 410 in the radial direction of the air return tube 400 is smaller than the second pitch L2. That is, the capillary structure 330 and the air guide channel 340 in the present embodiment are disposed in the air guide tube 320 and the space 311.
In the embodiment of the present application, not only one or two but also 3 or more (not shown) capillary structures 330 may be provided in the air duct 320, and similarly, not only one or two but also 3 or more air ducts 340 may be provided, which is not limited herein.
Several structural designs of the capillary structure 330 and the air guide passage 340 are described below.
In some structural designs, referring to fig. 3 and 4, a section of capillary structure 330 is formed in the lower end portion of the air duct 320, in which case an air guide channel 340 is formed in the upper end portion of the air duct 320, i.e., an air guide channel 340 having a larger pitch than the first pitch L1 of the capillary structure 330 is formed in the upper end portion of the air duct 320. In this structure, the external air cannot enter the air guide tube 320 through the capillary structure 330 formed at the lower end portion of the air guide tube 320, and even if a small amount of liquid enters, the external air stays in the capillary structure 330 and does not continue to enter the air guide channel 340. At this time, the return air hole 221, the interval space 311, the capillary structure 330, the air guide channel 340, the capillary channel 410 formed in the return air pipe 400, and the liquid storage chamber 120 are sequentially communicated to form a return air path. Thus, when the external air flows through the air duct 320 and the air return duct 400 from the space 311 into the liquid storage chamber 120, since no atomized liquid or only a small amount of atomized liquid stays in the air duct 320 and the air return duct 400, the external air is not subjected to the resistance of the atomized liquid in the air duct 320 and the air return duct 400 or is subjected to the resistance of the small atomized liquid, so that the flow rate of the external air in the air duct 320 and the air return duct 400 is increased, and the external air can smoothly flow through the air duct 320 and the air return duct 400 to enter the liquid storage chamber 120, thereby increasing the air pressure in the liquid storage chamber 120. Preferably, the upper end portion of the air duct 320 is extended into the liquid-free space 1000, and the air return duct 400 connected to the upper end portion of the air duct 320 is provided at a portion of the liquid-free space 1000, so that the atomized liquid in the liquid storage chamber 120 can be further prevented from flowing from the air return duct 400 into the upper end portion of the air duct 320 and the air guide passage 340. In this case, the air return hole 221, the interval space 311, the capillary structure 330, the air guide channel 340, the capillary channel 410 formed in the air return pipe 400, and the liquid-free space 1000 of the liquid storage chamber 120 are sequentially communicated and form an air return path, that is, the external air can return air into the liquid-free space 1000 of the liquid storage chamber 120 along the air return path, thereby increasing the air pressure of the air in the liquid storage chamber 120.
In other structural designs, referring to fig. 5-7, a length of capillary structure 330 is at least partially formed within spacing 311. Specifically, the capillary structure 330 (not shown) may be formed in the entire space of the interval space 311; alternatively, the capillary structure 330 may be formed in a part of the space 311, that is, the capillary structure 330 may be disposed in an end of the space 311 near the air duct 320 (not shown), or may be disposed in an end of the space 311 far from the air duct 320 (fig. 5), which is not limited herein. The end of the space 311 away from the air duct 320 refers to the space portion of the space 311 opposite to the air return hole 221.
In addition, in the space 311, not only one but also 2 or more (not shown) capillary structures 330 may be provided, and similarly, not only one but also 2 or more than 2 air guide channels 340 may be provided, and the present invention is not limited thereto.
Preferably, referring to fig. 5 to 7, a capillary structure 330 is formed in the space 311 opposite to the return air hole 221. In this case, air guide passages 340 are formed in the air guide tube 320 and in the space 311, respectively, except for the capillary structure 330. In this way, the air return hole 221, the capillary structure 330, the space part of the interval space 311 except the capillary structure 330, the air duct 320, the capillary channel 410 formed in the air return pipe 400, and the liquid storage cavity 120 are sequentially communicated to form an air return path, when the external air enters the interval space 311 from the air return hole 221, the external air flows out to the liquid storage cavity 120 from the capillary channel 410 formed in the air duct 320 and the air return pipe 400 through the capillary structure 330. The capillary structure 330 is disposed in the space opposite to the air return hole 221, and can better prevent or reduce the inflow of atomized liquid, thereby reducing the liquid resistance encountered when the external air flows through the air return path. Preferably, the upper end portion of the air duct 320 extends into the liquid-free space 1000, so that the air return duct 400 can also be disposed in the liquid-free space 1000, thereby enabling the external air to flow into the liquid storage cavity 120 more smoothly and increasing the air pressure of the air in the liquid storage cavity 120 more rapidly.
In another embodiment, when the capillary structure 330 is formed in the whole space in the space 311 and the air guide channel 340 is provided in the air guide tube 320, the air guide tube 320 serves as the air guide channel 340 to guide the external air entering from the space 311 to the capillary channel 410 formed in the air return tube 400 and then to enter the liquid storage chamber 120. When the capillary structure 330 is formed in a portion of the space 311 and the air guide channels 340 are respectively disposed in the air guide tube 320 and the space 311 other than the capillary structure 330, the second interval L2 of the air guide channels 340 formed in the space 311 and the second interval L2 of the air guide channels 340 formed in the air guide tube 320 may be set equal or unequal, which is not limited herein.
Further, referring to fig. 4 and 6, capillary structure 330 is a capillary gap 331. In the present embodiment, the number of the capillary gaps 331 is also at least one, and the number of the capillary gaps 331 is also several corresponding to several structural designs of the capillary structure 330, one is that the capillary gaps 331 are formed in the air duct 320 (fig. 4), and the other is that the capillary gaps 331 are formed in the spacing space 311 (fig. 6). Of course, when there are a plurality of capillary gaps 331, the capillary gaps 331 may be disposed in the air duct 320 and the space 311, and are not limited herein.
Referring to fig. 4, when the capillary gap 331 is formed in the air duct 320, the width of the capillary gap 331 along the radial direction of the air duct 320 is a first interval L1, the first interval L1 is 0.1mm-1mm, and by reasonably designing the size of the capillary gap 331 to be 0.1mm-1mm, after the external air enters the capillary gap 331 through the air return hole 221, capillary air resistance can be formed in the capillary gap 331, so that the atomized liquid can be blocked from entering the air guide channel 340 through the capillary air resistance formed in the capillary gap 331. As for the specific size and specific length of the capillary gap 331, it is possible to set the specific size and specific length according to the degree of the consistency of the atomized liquid, for example, when the consistency of the atomized liquid is relatively large, the width of the capillary gap 331 may be set to be slightly larger; when the concentration of the atomized liquid is smaller, the width of the capillary gap 331 can be set to be smaller, so long as capillary air resistance can be formed in the capillary gap 331, so that the effect that the outside air passes through and the atomized liquid cannot pass through can be met.
In order to prevent the atomized liquid from being blocked by the capillary air lock formed in the capillary gap 331, the length of the capillary gap 331 in the axial direction of the air duct 320 is 3mm or more in this embodiment. If the length of the capillary gap 331 is less than 3mm, the atomized liquid may break through the capillary air resistance of the capillary gap 331 and be introduced into the air guide channel 340.
Also, referring to fig. 6, when the capillary gap 331 is formed in the space 311, the width of the capillary gap 331 along the radial direction of the atomizing core shell 220 is a first interval L1, the first interval L1 is 0.1mm-1mm, and the length of the capillary gap 331 along the axial direction of the atomizing core shell 220 is 3mm or more, which has the same effect as that of the capillary gap 331 formed in the air duct 320, and is not described in detail herein.
It should be noted that, when the capillary gap 331 is formed in the space 311 and the air duct 320, the width of the capillary gap 331 in the space 311 (i.e., the first interval L1 in fig. 6) and the width of the capillary gap 331 in the air duct 320 (i.e., the first interval L1 in fig. 4) may be set to be equal or unequal; the length of the capillary gap 331 in the space 311 and the length of the capillary gap 331 in the air duct 320 may be equal or unequal, which is not limited herein.
Further, the distance between the capillary channels 410 along the radial direction of the air return pipe 400 is 0.2mm-2mm, and the length of the capillary channels 410 along the axial direction of the air return pipe 400 is 3mm or more, and the distance between the capillary channels 410 and the first distance L1 of the capillary gap 331 may be set to be equal or unequal; also, the length of the capillary passage 410 and the length of the capillary gap 331 may be set equal or may be set unequal.
Further, referring to fig. 7, the capillary structure 330 is a capillary groove 332 extending in the axial direction of the atomizing core housing 220. In the present embodiment, the number of the capillary grooves 332 is also at least one, and when the capillary grooves 332 are formed in the space 311 (fig. 7), the cross-sectional area of the capillary grooves 332 in the radial direction of the atomizing core housing 220 is 0.03mm 2 -3.14mm 2 And the capillary groove 332 has a smaller sectional area than the radial sectional area of the atomizing core housing 220 at the air guide passage 340. In order to form capillary air resistance in the capillary groove 332 after the gas enters the capillary groove 332, the radial sectional area of the capillary groove 332 is reasonably designed to be 0.03mm 2 -3.14mm 2 In this way, the problem that external air cannot be introduced into the liquid storage cavity 120 due to too small radial sectional area of the capillary groove 332 can be avoided, and the phenomenon that the capillary air resistance formed in the capillary groove 332 is insufficient to block the atomized liquid from entering due to too large radial sectional area of the capillary groove 332 can be avoidedTo the air guide passage 340, there arises a problem that resistance of the external air entering the liquid storage chamber 120 increases. The cross-sectional area of the capillary groove 332 in the radial direction of the atomizing core 220 is a product of the depth of the capillary groove 332 in the radial direction of the atomizing core 220 and the width of the capillary groove 332 in the circumferential direction of the atomizing core 220.
It should be noted that, the capillary groove 332 may also be formed in the air duct 320, for example: at least one capillary groove 332 is formed in a solid tube along the axial direction of the atomizer to form the air duct 320, which is not limited herein.
In the embodiment of the present application, preferably, when the capillary structure 330 is formed in both the air duct 320 and the space 311, the capillary structure 330 formed in the air duct 320 is a capillary gap 331, and the capillary structure 330 formed in the space 311 may be a capillary groove 332 or a capillary gap 331, which is not limited herein.
Further, the capillary passage 410 has a sectional area of 0.03mm in the radial direction of the muffler 400 2 -3.14mm 2 The cross-sectional area of the capillary passage 410 and the cross-sectional area of the capillary groove 332 may be set to be equal, or may be set to be unequal. The cross section of the capillary passage 410 along the radial direction of the muffler 400 may be circular, square, triangular, etc., and is not particularly limited. Taking the example of the capillary passage 410 having a circular cross section along the radial direction of the separator 340, the cross section of the capillary passage 410 along the radial direction of the separator 340 is the product of the square of the radius of the capillary passage 410 and pi.
Based on the above embodiment, as shown in fig. 3, in the axial direction of the atomizing core housing 220, the end of the sleeve 310 away from the air outlet 140 extends toward the bottom of the atomizer and is partially shielded from the outer periphery of the liquid inlet 222. At this time, the space 311 is a space disposed between the inner wall of the sleeve 310 and the outer wall of the atomizing core 220, which includes the air return hole 221 and the liquid inlet 222, that is, the space 311 includes not only a space disposed between the inner wall of the sleeve 310 and the outer wall of the atomizing core 220, which includes the air return hole 221, but also a space disposed between the inner wall of the sleeve 310 and the outer wall of the atomizing core 220, which extends from below the air return hole 221 to the liquid inlet 222, and the space 311 is communicated with the air duct 320. In the embodiment of the application, the lower part of the air return hole 221 is one side of the air return hole 221 near the bottom of the atomizer.
Because the inlet port 222 communicates with the outlet channel 130 through the porous structure in the liquid guide 210, as the atomized liquid in the liquid storage chamber 120 is continuously consumed and reduced, a small portion of the gas may enter the atomized liquid in the liquid storage chamber 120 through the inlet port 222, and the small portion of the gas may continue to rise upward, i.e., pass through the atomized liquid and up into the liquid-free space 1000. This small portion of the gas entering the atomized liquid is hindered by the hydraulic pressure of the atomized liquid, the gravity of the liquid itself, and the pressure of the gas already in the liquid-free space 1000 above the atomized liquid during the ascent, resulting in a slow rate of gas ascent into the liquid-free space 1000. Therefore, in the embodiment of the application, by shielding the lower end portion of the sleeve 310 from the periphery of the liquid inlet 222, a small portion of the gas can enter the liquid-free space 1000 in the liquid storage cavity 120 along the space 311, the air duct 320 and the capillary channel 410 formed in the air return duct 400 under the blocking action of the lower end portion of the sleeve 310 after entering the space 311 from the liquid inlet 222. Even if a small amount of atomized liquid exists in the air duct 320, the resistance encountered by the air during the rising of the air in the air duct 320 is small, and when the capillary structure 330 is actually formed in the lower end portion of the air duct 320 and the capillary channel 410 is formed in the air return duct 400, the atomized liquid does not enter the air duct 340 in the air duct 320 due to the capillary air resistance of the capillary structure 330 and the capillary channel 410, so that a small portion of the air entering the space 311 can pass through the capillary structure 330, the air duct 340 and the capillary channel 410 formed in the air return duct 400 smoothly and rapidly, and enter the liquid-free space 1000 of the liquid storage chamber 120.
In addition, the end of the sleeve 310 away from the air outlet 140 may be partially shielded from the periphery of the liquid inlet 222. As shown in fig. 5, when the space 311 is formed by relatively spacing between the inner peripheral wall of the sleeve 310 and the outer peripheral wall of the atomizing core 220 including the air return hole 221, a liquid guiding space 323 is formed by relatively spacing between the inner peripheral wall of the sleeve 310 and the outer peripheral wall of the atomizing core 220 from below the air return hole 221 (i.e., the side of the air return hole 221 near the bottom of the atomizer) to the liquid inlet 222. That is, the space 311 only includes the space between the inner wall of the sleeve 310 and the outer wall of the atomizing core 220 including the air return hole 221 in the above embodiment, and the space 323 is the space between the inner wall of the sleeve 310 and the outer wall of the atomizing core 220 from below the air return hole 221 to the outer wall of the air inlet 222, and the space 311 is communicated with the air guide space 323 and the air guide tube 320. In fig. 6 and 7, a capillary structure 330 is formed in the space 311 opposite to the air return hole 221, and an air guide channel 340 is formed in the air guide tube 320, that is, the capillary structure 330 communicates with the liquid guide space 323 and the air guide channel 340. With this structure, after a small portion of the gas enters the liquid guiding space 323 through the liquid inlet 222, the gas can enter the capillary structure 330, the gas guiding channel 340 and the capillary channel 410 formed in the gas return tube 400 smoothly and rapidly under the blocking action of the lower end portion of the sleeve 310, and enter the liquid-free space 1000 of the liquid storage cavity 120.
Based on all of the above embodiments, as shown in connection with fig. 3 and 5, the end of the housing 100 facing away from the air outlet 140 is provided with a mounting opening 170. The atomizer further comprises a first base 500 and a second base 600, wherein the first base 500 is arranged in the housing 100, the second base 600 is arranged at the mounting opening 170, one end of the atomizing core shell 220, which is away from the inner pipe 110, is connected with the first base 500, and the housing 100, the inner pipe 110 and the first base 500 are enclosed to form the liquid storage cavity 120. The first base 500 is provided with an air inlet 510 communicated with the air outlet channel 130, the side wall of the housing 100 between the first base 500 and the second base 600 is provided with an air inlet 180, and the air inlet 180 is communicated with the air inlet 510. That is, when the atomizer is in use and the air pressure in the liquid storage chamber 120 is reduced due to continuous consumption of the atomized liquid, the external air will enter the liquid storage chamber 120 through the air inlet 180, the air inlet 510, the air return hole 221, the capillary structure 330 formed in the space 311 and the air guide tube 320, and the capillary channel 410 formed in the air return tube 400 in sequence. When the atomizer is in an unused state and a negative pressure is formed between the air pressure in the liquid storage chamber 120 and the air pressure in the air outlet channel 130 or the external atmospheric pressure, the external air may enter the air return hole 221 from the air inlet 180 and the air inlet 510 to return air into the liquid storage chamber 120, and may enter the air return hole 221 from the air outlet 140 and the air outlet channel 130 to return air into the liquid storage chamber 120, so that no matter whether the external air enters from the air inlet 180 or the air outlet 140, the external air is returned to the liquid storage chamber 120 through the air return hole 221 with smaller total liquid-air pressure.
Further, referring to fig. 3 and 5, one end of the first base 500 away from the air inlet 180 is convexly provided with a barb portion 520, the barb portion 520 is bent towards the inner wall of the liquid storage cavity 120, that is, the barb portion 520 is bent towards the axis of the atomizing core shell 220 along the radial direction of the atomizing core shell 220, the barb portion 520 and the sleeve 320 are spaced from each other and form a liquid inlet 530, a liquid inlet space 540 is formed between the barb portion 520 and the first base 500, and the liquid inlet space 540 is communicated with the liquid inlet 530 and the liquid inlet hole 222. The atomized liquid in the liquid storage chamber 120 is then introduced into the liquid guide 210 through the liquid inlet 530, the liquid inlet space 540, and the liquid inlet 222 in this order.
Further, the barb portion 520 is disposed on the side of the first base 500 facing the liquid storage cavity 120, and in order to facilitate observation of the consumption of the atomized liquid in the liquid storage cavity 120, the portion of the housing 100 in the liquid storage cavity 120 is generally made of transparent or semitransparent material, at this time, when the liquid storage cavity 120 is observed from the outside of the atomizer, the bottom of the liquid storage cavity 120 is a bent portion of the barb portion 520, and a portion of the atomized liquid can be stored in the liquid inlet space 540 formed between the barb portion 520 and the first base 500. Thus, when the user observes that the bottom of the liquid storage cavity 120 is free of atomized liquid, as atomized liquid is stored in the liquid inlet space 540, the atomizer can actually suck for a period of time, and the user can be prompted that the atomizer is in a state of being free of atomized liquid, so that atomized liquid can be added into the liquid storage cavity 120 again.
The barb 520 also has a function of keeping the atomized liquid in the liquid inlet space 540 when the atomizer is in an inclined use state and the atomized liquid in the liquid storage cavity 120 is insufficient (for example, when the atomizer is vertically placed, the liquid level of the atomized liquid is located at a position opposite to the liquid inlet 222), so that the atomized liquid is prevented from flowing out of the liquid inlet 530 into the liquid storage cavity 120 along with the inclined angle to cause the atomized liquid to be unable to contact the position of the liquid inlet 222, and thus the atomized liquid is unable to be conducted to the liquid guide 210 through the liquid inlet 222, and the liquid guide 210 is free from dry burning.
Correspondingly, the embodiment of the application also provides an electronic atomization device, which comprises the atomizer in any embodiment. The electronic atomization device further comprises a battery assembly (not shown), wherein the battery assembly is electrically connected with the heating element in the atomizer and is used for providing current for the heating element so that the heating element can generate heat after being electrified and heat atomized liquid which is atomized and conducted to the heating element.
In some specific application scenarios, the battery assembly of the embodiment may be a power supply of a lithium battery or the like, and in addition, the electronic atomization device of the embodiment may further include a control circuit board, wherein the control circuit board is electrically connected with the battery assembly and the heating element respectively, and when in use, the control circuit board can control the battery assembly to supply power to the heating element, so that the heating element is electrified and heats to atomize the atomized liquid conducted to the heating element into aerosol which can be sucked by a user.
It should be noted that, please refer to the prior art for other contents of the atomizer and the electronic atomization device disclosed in the embodiments of the present utility model, and the description thereof is omitted herein.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. An atomizer, comprising:
the shell is internally provided with an inner pipe part, a liquid storage cavity is formed by enclosing between the outer wall of the inner pipe part and the inner wall of the shell, an air outlet channel is formed by enclosing the inner wall of the inner pipe part, and an air outlet communicated with the air outlet channel is formed in the shell;
the atomization core is arranged in the shell and is connected with one end, far away from the air outlet, of the inner pipe part, the atomization core comprises a liquid guide and a hollow atomization core shell, at least one air return hole and at least one liquid inlet hole are formed in the atomization core shell in a penetrating mode, the air return hole is closer to the air outlet channel than the liquid inlet hole, the liquid guide is arranged in a hollow space of the atomization core shell and is in contact connection with the air return hole and the inner side wall of the atomization core shell at the liquid inlet hole, and the air return hole and the liquid inlet hole are respectively communicated with the liquid guide and the liquid storage cavity;
One end of the sleeve is connected to the outer peripheral wall of the inner pipe part, the other end of the sleeve extends towards the direction away from the air outlet, and the inner peripheral wall of the sleeve and the outer peripheral wall of the atomizing core shell, which comprises an air return hole, are oppositely arranged at intervals to form an interval space;
the air duct is at least one, one end of the air duct is arranged on the sleeve and is communicated with the interval space, the other end of the air duct extends to one end of the liquid storage cavity close to the air outlet, at least one capillary structure is formed in the air duct and the interval space, and the capillary structure is communicated with the air return hole; and
the air return pipe is at least one, the air return pipe is connected to one end of the air guide pipe, which is close to the air outlet, a capillary channel is formed in at least part of the air return pipe, and the capillary channel is communicated with the capillary structure and the liquid storage cavity.
2. The nebulizer of claim 1, wherein the capillary structure has a first pitch, and at least one air guide channel having a second pitch is further formed in the air guide pipe and the space, the first pitch being smaller than the second pitch, and a maximum pitch of the capillary channel in a radial direction of the air return pipe is smaller than the second pitch.
3. The atomizer according to claim 2, wherein a section of the capillary structure is formed in an end of the air duct near the sleeve, the air duct is formed with the air guide channel in an end of the air duct far from the sleeve, and the air return hole, the interval space, the capillary structure, the air guide channel, the capillary channel and the liquid storage cavity are sequentially communicated and form an air return path; or alternatively, the process may be performed,
the space is internally provided with a section of capillary structure at least partially, the part except the capillary structure in the air duct and the space is respectively provided with an air guide channel, and the air return hole, the capillary structure, the air guide channel, the capillary channel and the liquid storage cavity are sequentially communicated and form an air return path.
4. A nebulizer as claimed in claim 3, wherein the capillary structure is a capillary gap, wherein:
when the capillary gap is formed in the air duct, the width of the capillary gap along the radial direction of the air duct is the first interval, the first interval is 0.1mm-1mm, and the length of the capillary gap along the axial direction of the air duct is more than or equal to 3mm; or alternatively, the process may be performed,
When the capillary gap is formed in the interval space, the width of the capillary gap along the radial direction of the atomizing core shell is the first interval, the first interval is 0.1mm-1mm, and the length of the capillary gap along the axial direction of the atomizing core shell is more than or equal to 3mm.
5. A nebulizer as claimed in claim 3, wherein the capillary structure is a capillary groove extending in an axial direction of the nebulizing core housing, a sectional area of the capillary groove in a radial direction of the nebulizing core housing being 0.03mm when the capillary groove is formed in the spacing space 2 -3.14mm 2 The cross section area of the capillary groove is smaller than that of the air guide channel along the atomizing core shellIs defined by a radial cross-sectional area of the cylinder.
6. The nebulizer of claim 4, wherein a pitch of the capillary channels in a radial direction of the air return pipe is 0.2mm to 2mm, and a length of the capillary channels in an axial direction of the air return pipe is 3mm or more, and the pitch of the capillary channels is equal to or unequal to the first pitch.
7. The nebulizer of claim 5, wherein a cross-sectional area of the capillary channel in a radial direction of the return air tube is 0.03mm 2 -3.14mm 2 The cross-sectional area of the capillary channel is equal to or unequal to the cross-sectional area of the capillary groove.
8. The atomizer according to any one of claims 1 to 7, wherein in an axial direction of the atomizing core housing, an end of the sleeve remote from the air outlet extends toward a bottom of the atomizer and is partially shielded from an outer periphery of the liquid inlet hole, wherein:
when the interval space is formed by the relative interval arrangement between the inner peripheral wall of the sleeve and the outer peripheral wall of the atomizing core shell, which comprises the air return hole and the liquid inlet hole, the interval space is communicated with the air duct; or alternatively, the process may be performed,
when the interval space is a space formed by the relative interval arrangement between the inner peripheral wall of the sleeve and the outer peripheral wall of the air return hole, which is formed by the relative interval arrangement, of the atomizing core shell, the interval space is communicated with the liquid guide space and the air guide pipe, which are formed by the relative interval arrangement between one side, close to the bottom of the atomizer, of the air return hole and the outer peripheral wall of the liquid inlet hole, of the atomizing core shell.
9. The atomizer according to any one of claims 1 to 7, wherein an end of said housing facing away from said air outlet is provided with a mounting opening;
The atomizer further comprises a first base and a second base, wherein the first base is arranged in the shell, the second base is arranged at the mounting opening, one end of the atomizing core shell, which is away from the inner pipe part, is connected with the first base, the shell, the inner pipe part and the first base are enclosed to form the liquid storage cavity, an air inlet hole communicated with the air outlet channel is formed in the first base, an air inlet is formed in the side wall of the shell, which is positioned between the first base and the second base, and the air inlet is communicated with the air inlet;
the one end of first base keeping away from the air inlet is protruding to be equipped with barb portion, barb portion orientation stock solution intracavity is buckled and is set up, barb portion with the sleeve pipe is kept away from the one end lateral wall of gas outlet sets up and forms the inlet at intervals, just barb portion with form the feed liquor space between the first base, feed liquor space intercommunication the inlet with the feed liquor hole.
10. An electronic atomizing device, characterized in that it comprises an atomizer according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320995391.XU CN219845064U (en) | 2023-04-27 | 2023-04-27 | Atomizer and electronic atomizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320995391.XU CN219845064U (en) | 2023-04-27 | 2023-04-27 | Atomizer and electronic atomizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219845064U true CN219845064U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320995391.XU Active CN219845064U (en) | 2023-04-27 | 2023-04-27 | Atomizer and electronic atomizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219845064U (en) |
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2023
- 2023-04-27 CN CN202320995391.XU patent/CN219845064U/en active Active
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