Capillary liquid atomization unit and atomization device

Abstract

The present invention discloses a capillary liquid-conducting atomization unit and an atomization device. The capillary liquid-conducting atomization unit comprises a shell and an atomization component arranged in the shell; at least one liquid inlet hole is arranged on the side of the atomization component, and a capillary liquid suction channel connected to the liquid inlet hole is arranged between the inner side of the shell and the side where the liquid inlet hole is located; the length of the capillary liquid suction channel extends along the height direction of the side where the liquid inlet hole is located, and the opposite ends of the capillary liquid suction channel extend to the upper and lower sides of the liquid inlet hole respectively, and the liquid is adsorbed to the liquid inlet hole by capillary action. The capillary liquid-conducting atomization unit of the present invention, by arranging a capillary liquid suction channel outside the liquid inlet hole, utilizes capillary action to adsorb the liquid outside the atomization unit to the liquid inlet hole, so that in the atomization device, the liquid inlet hole does not need to correspond to the bottom of the liquid storage bin, avoiding the problem of liquid leakage, and the liquid at the bottom of the liquid storage bin can be adsorbed to the liquid inlet hole under the capillary action, avoiding the problem of dry burning caused by insufficient liquid supply.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic atomization, and in particular to a capillary liquid-conducting atomization unit and an atomization device. Background Art

[0002] The liquid supply system of the electronic atomizer currently used in the field of electronic atomization is prone to leakage and insufficient liquid supply. It is difficult to strike a balance between preventing liquid leakage and satisfying the needs of heating and atomization.

[0003] At present, in order to completely atomize the liquid, the liquid inlet of the atomizer in the industry is generally set at the bottom of the liquid storage tank. In this way, the liquid pressure received by the liquid inlet is relatively large, and the pressure of the liquid passing through the porous material is high, which makes it very easy for the liquid to pass through the porous material, which can easily cause leakage. Leakage can be solved by adjusting the pore size and pore density of the porous material. However, as the liquid is atomized and evaporated, the liquid in the liquid storage tank becomes less, the pressure becomes smaller, the liquid pressure received by the liquid inlet becomes smaller, and the speed of the liquid passing through the porous material to the atomization surface becomes slower, which will cause insufficient liquid supply and dry burning. Both leakage and dry burning greatly affect the user experience. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a capillary liquid-conducting atomizing unit for absorbing liquid by capillary action and an atomizing device having the capillary liquid-conducting atomizing unit.

[0005] The technical solution adopted by the present invention to solve the technical problem is: to provide a capillary liquid guide atomization unit, comprising a shell and an atomization component arranged in the shell; at least one liquid inlet hole is arranged on the side of the atomization component, and a capillary liquid suction channel connected to the liquid inlet hole is arranged between the inner side of the shell and the side where the liquid inlet hole is located;

[0006] The length of the capillary liquid absorption channel extends along the height direction of the side surface where the liquid inlet hole is located, and the opposite ends of the capillary liquid absorption channel extend respectively to the upper and lower sides of the liquid inlet hole, and the liquid is absorbed to the liquid inlet hole through capillary action.

[0007] Preferably, the housing comprises a cylinder with two opposite ends open, and the cylinder is sleeved and fitted on the outer peripheral side of the atomizer assembly;

[0008] The side wall of the barrel body opposite to the liquid inlet hole protrudes outward relative to the atomizer assembly to form a convex wall extending along the length direction of the barrel body; the capillary liquid suction channel is formed between the inner wall surface of the convex wall and the side surface of the atomizer assembly.

[0009] Preferably, the outer peripheral shape of the barrel is arranged to correspond to the outer peripheral shape of the atomization assembly, and is circular, polygonal or elliptical.

[0010] Preferably, an exhaust hole connected to the capillary liquid absorption channel is provided on the convex wall; the exhaust hole is located above the liquid inlet hole.

[0011] Preferably, one end of the housing is sealed to form a closed end, and the atomizing assembly is positioned on an inner end surface of the closed end;

[0012] The inner wall surface of the housing includes a first wall surface which is opposite to the side surface of the atomizing assembly where the liquid inlet hole is located through a gap, and the capillary liquid suction channel is formed between the side surface and the first wall surface;

[0013] The other inner wall surface of the shell is a second wall surface which is spaced apart from the other side surfaces of the atomizer assembly; the space between the other side surfaces of the atomizer assembly and the second wall surface forms a liquid storage cavity which is connected to the capillary liquid suction channel.

[0014] Preferably, a raised step is provided on the first wall surface, and the capillary liquid suction channel is formed between the side surface of the atomization component where the liquid inlet hole is located and the step.

[0015] Preferably, a support seat is provided on the inner end surface of the closed end of the shell, and the atomization assembly is arranged on the support seat; a gap is left between the outer periphery of the support seat and the inner wall surface of the shell, and the gap is connected to the liquid storage chamber.

[0016] Preferably, the top of the capillary liquid suction channel is flush with or higher than the top edge of the liquid inlet hole; and the bottom of the capillary liquid suction channel is located below the liquid inlet hole.

[0017] Preferably, the atomization assembly comprises a liquid-conducting body, a sleeve sleeved on the outer periphery of the liquid-conducting body, and at least one heating element arranged in the liquid-conducting body, and the liquid inlet hole is arranged on the sleeve;

[0018] The liquid-conducting body is provided with air flow holes penetrating through two opposite ends thereof, and the heating element is located on the inner wall surface of the air flow holes.

[0019] Preferably, the heating element comprises a heating body and two electrode connecting parts connected to one end of the heating body at intervals; and one end of the electrode connecting part exposed from the liquid conductive body is externally connected to a power source.

[0020] Preferably, the heating body is in a sheet or spiral shape; and the electrode connecting portion is an electrode lead or an electrode contact.

[0021] The present invention further provides an atomization device, comprising the capillary liquid-conducting atomization unit described in any one of the above items, and a liquid storage tank disposed on the periphery of the capillary liquid-conducting atomization unit;

[0022] The bottom of the capillary liquid suction channel of the capillary liquid guide atomization unit is higher than the bottom surface of the liquid storage bin.

[0023] The capillary liquid-guiding atomization unit of the present invention arranges a capillary liquid absorption channel outside the liquid inlet hole, and utilizes the capillary action to absorb the liquid outside the atomization unit and guide it to the liquid inlet hole. In this way, in the atomization device, the liquid inlet hole does not need to correspond to the bottom of the liquid storage bin, thereby avoiding the problem of liquid leakage. The liquid at the bottom of the liquid storage bin can be absorbed to the liquid inlet hole under the capillary action, thereby avoiding the problem of dry burning caused by insufficient liquid supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0025] Figure 1 1 is a schematic diagram of the three-dimensional structure of the capillary liquid-conducting atomization unit of the first embodiment of the present invention;

[0026] Figure 2 yes Figure 1 The schematic diagram of the exploded structure of the capillary liquid atomization unit shown;

[0027] Figure 3 yes Figure 1 The cross-sectional structure diagram of the capillary liquid atomization unit performing capillary adsorption of liquid is shown;

[0028] Figure 4 is a schematic diagram of the three-dimensional structure of a capillary liquid-conducting atomization unit according to a second embodiment of the present invention;

[0029] Figure 5 yes Figure 4 The schematic diagram of the exploded structure of the capillary liquid atomization unit shown;

[0030] Figure 6 3D is a schematic diagram of the three-dimensional structure of a capillary liquid-conducting atomization unit according to a third embodiment of the present invention;

[0031] Figure 7 is a schematic diagram of the three-dimensional structure of a capillary liquid-conducting atomization unit according to a fourth embodiment of the present invention;

[0032] Figure 8 yes Figure 7 A schematic diagram of the transverse cross-sectional structure of the capillary liquid-guiding atomization unit shown;

[0033] Fig. 9 and Fig.10 They are Figure 7 The cross-sectional structure diagram of the capillary liquid-guiding atomization unit shown in two different vertical directions;

[0034] Fig.11 4 is a schematic diagram of the transverse cross-sectional structure of a capillary liquid-conducting atomization unit according to the fifth embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0036] like Figure 1-3 As shown, the capillary liquid guide atomization unit of the first embodiment of the present invention includes a housing 10 and an atomization assembly 20 disposed in the housing 10 .

[0037] Among them, at least one liquid inlet hole 200 is provided on the side of the atomizing assembly 20, and a capillary liquid absorption channel 100 is provided between the inner side of the housing 10 and the side where the liquid inlet hole 200 is located, and the length of the capillary liquid absorption channel 100 extends along the height direction of the side of the atomizing assembly 20 where the liquid inlet hole 200 is located. The capillary liquid absorption channel 100 is connected to the liquid inlet hole 200; and the opposite ends of the capillary liquid absorption channel 100 extend to the upper and lower sides of the liquid inlet hole 200 respectively, and the liquid is absorbed to the liquid inlet hole 200 by capillary action. The liquid entering the liquid inlet hole 200 is then heated and atomized by the atomizing assembly to form smoke.

[0038] The width d of the capillary liquid suction channel 100 is 0.1 mm-3 mm. The number of the capillary liquid suction channels 100 is set corresponding to the liquid inlet hole 200. For example, when the liquid inlet hole 200 is set on one side of the atomizing component 20, one capillary liquid suction channel 100 is correspondingly provided opposite thereto. When the liquid inlet holes 200 are respectively provided on the opposite sides of the atomizing component 20, two capillary liquid suction channels 100 are correspondingly provided, each opposite to one liquid inlet hole 200.

[0039] In this embodiment, the housing 10 includes a cylinder 11 with two opposite open ends. The cylinder 11 is sleeved and attached to the outer peripheral side of the atomizer assembly 20 .

[0040] The side wall of the barrel 11 opposite to the liquid inlet 200 bulges outward relative to the atomizer assembly 20 to form a convex wall 12 extending along the length direction of the barrel 11. The capillary liquid suction channel 100 is formed between the inner wall surface of the convex wall 12 and the side surface of the atomizer assembly 10.

[0041] The outer peripheral shape of the barrel 11 is arranged correspondingly to the outer peripheral shape of the atomizer assembly 20, so that the barrel 11 can fit closely to the outer periphery of the atomizer assembly 20. The outer peripheral shapes of the barrel 11 and the atomizer assembly 20 can be, but are not limited to, circular, polygonal, or elliptical. The convex shape of the convex wall 12 is not limited, and can be various shapes such as square and arc.

[0042] The atomization assembly 20 may include a liquid-conducting body 21 , a sleeve 22 sleeved on the outer periphery of the liquid-conducting body 21 , and at least one heating element 23 disposed in the liquid-conducting body 21 .

[0043] The liquid guide 21 is used to absorb the atomizable liquid. It is a porous liquid guide made of porous material, and its cross section can be in various shapes such as polygonal and circular. The liquid guide 21 is provided with air flow holes 210 penetrating its opposite ends. The heating element 23 is located on the inner wall surface of the air flow hole 210. The liquid is heated and atomized on the heating element 23 and then discharged along the air flow hole 210.

[0044] The sleeve 22 covers the outer periphery of the liquid guiding body 21 to play the role of structural support and isolation. The liquid inlet hole 200 is arranged on the sleeve 22. In order for the liquid guiding body 21 to absorb the liquid better and faster, a protrusion 211 that fits in the liquid inlet hole 200 may be arranged on the side of the liquid guiding body 21.

[0045] The heating element 23 can be attached to or embedded on the inner wall surface of the air flow hole 210, and one end of the heating element 23 is exposed to one end of the liquid conductive body 21 for external power supply. The heating element 23 may include a heating body 231 and two electrode connecting parts 232 connected to one end of the heating body 231 at intervals. The electrode connecting part 232 is exposed to one end of the liquid conductive body 21 for external power supply, and the two electrode connecting parts 32 correspond to the positive and negative poles of the power supply respectively.

[0046] The heating body 231 may be in the form of a sheet or a spiral; the electrode connection portion 232 may be an electrode lead or an electrode contact. Figure 2 As shown, in this embodiment, the heating body 231 is a spiral heating tube, and the electrode connecting portion 232 is an electrode lead extended or welded from the end of the heating tube.

[0047] Further, in this embodiment, the length of the sleeve 22 is greater than the length of the liquid-conducting liquid 21, so that the liquid-conducting liquid 21 can be accommodated in the sleeve 22 as a whole. The length of the sleeve 22 is also greater than the length of the housing 10, and the housing 10 is sleeved on the outer periphery of the sleeve 22 corresponding to the position of the liquid inlet hole 200 on the sleeve 22. The top of the housing 10 is flush with or higher than the top edge of the liquid inlet hole 200, so that the top of the capillary liquid suction channel 100 is also flush with or higher than the top edge of the liquid inlet hole 200. The bottom of the housing 10 is located below the liquid inlet hole 200, so that the bottom of the capillary liquid suction channel 100 is also located below the liquid inlet hole 200, so that the bottom opening of the capillary liquid suction channel 100 can absorb the liquid located below the liquid inlet hole 200 and lift it to the liquid inlet hole 200, and enter the liquid inlet hole 200 to be absorbed by the liquid-conducting liquid 21.

[0048] like Figure 3As shown, when the capillary liquid guide atomization unit of this embodiment is used in the atomization device, the liquid storage tank 300 of the atomization device is located at the periphery of the capillary liquid guide atomization unit. The liquid inlet hole 200 on the atomization component 20 does not need to be located at the bottom of the liquid storage tank 300, and can be located in the middle of the liquid storage tank 300 or other positions; the bottom of the capillary liquid suction channel 100 is located in the liquid storage tank 300, that is, higher than the bottom surface of the liquid storage tank 300. When the atomization device is working, the liquid in the liquid storage tank 300 is absorbed by the capillary liquid suction channel 100 and enters it, and then enters the liquid guide body 21 through the liquid inlet hole 200.

[0049] like Figure 4 , 5 As shown, the capillary liquid guide atomization unit according to the second embodiment of the present invention includes a housing 10 and an atomization assembly 20 disposed in the housing 10 .

[0050] Among them, at least one liquid inlet hole 200 is provided on the side of the atomizing assembly 20, and a capillary liquid absorption channel 100 is provided between the inner side of the housing 10 and the side where the liquid inlet hole 200 is located, and the length direction of the capillary liquid absorption channel 100 is parallel to the height direction of the side of the atomizing assembly 20 where the liquid inlet hole 200 is located. The capillary liquid absorption channel 100 is connected to the liquid inlet hole 200; and the opposite ends of the capillary liquid absorption channel 100 extend to the upper and lower sides of the liquid inlet hole 200 respectively, and the liquid is absorbed to the liquid inlet hole 200 by capillary action. The liquid entering the liquid inlet hole 200 is then heated and atomized by the atomizing assembly to form smoke.

[0051] The housing 10 includes a cylinder 11 with two opposite ends open, and the cylinder 11 is sleeved and attached to the outer peripheral side of the atomizer assembly 20. The side wall of the cylinder 11 opposite to the liquid inlet 200 protrudes outward relative to the atomizer assembly 20 to form a convex wall 12 extending along the length direction of the cylinder 11. The capillary liquid suction channel 100 is formed between the inner wall surface of the convex wall 12 and the side surface of the atomizer assembly 10.

[0052] The atomization assembly 20 includes a liquid-conducting body 21 , a sleeve 22 sleeved on the outer periphery of the liquid-conducting body 21 , and at least one heating element 23 disposed in the liquid-conducting body 21 .

[0053] In this embodiment, the specific configuration of the housing 10 and the capillary liquid suction channel 100, the matching mode of the sleeve 22 and the liquid guide 21, etc. can all refer to the above-mentioned first embodiment, and will not be repeated here.

[0054] The liquid-conducting body 21 is provided with airflow holes 210 penetrating through the opposite ends thereof, and the heating element 23 can be attached to or embedded on the inner wall surface of the airflow hole 210, and one end of the heating element 23 is exposed from the liquid-conducting body 21 and connected to an external power source. The airflow hole 210 can be one or multiple airflow holes 210 spaced apart. The heating element 23 can be one or multiple; multiple heating elements 23 are independently arranged on the inner wall surface of each airflow hole 210, or can be arranged on the inner wall surface of the same side of the multiple airflow holes 210 across the multiple airflow holes 210.

[0055] The heating element 23 may include a heating body 231 and two electrode connecting parts 232 spaced apart and connected to one end of the heating body 231. The electrode connecting part 232 is exposed from the liquid conductor 21 and connected to an external power source, and the two electrode connecting parts 32 correspond to the positive and negative poles of the power source respectively.

[0056] The present embodiment is different from the first embodiment in that the heating body 231 is in the form of a sheet, and further through holes may be provided thereon to form a hollow sheet as required. Figure 5 The electrode leads shown may also be electrode contacts connected to or formed on the heat generating body 231 .

[0057] The capillary liquid conduction atomization unit of this embodiment is used in an atomization device. The capillary liquid conduction method in the atomization device is the same as that in the first embodiment described above. Figure 3 And the related descriptions in the above-mentioned first embodiment.

[0058] In addition, in the first embodiment described above, the outer peripheral shape of the atomizing assembly 20 may be as follows: Figure 1 , 2 The outer shape of the atomizing assembly 20 in the second embodiment can be as follows: Figure 4 , 5 The square shown may also be other shapes such as a circle.

[0059] like Figure 6 As shown, the capillary liquid guide atomization unit of the third embodiment of the present invention includes a housing 10 and an atomization assembly 20 disposed in the housing 10. This embodiment is different from the first and second embodiments described above in that an exhaust hole 130 connected to the capillary liquid suction channel 100 is provided on the convex wall 12 of the barrel 11, and one or more exhaust holes 130 can be provided as needed. In the vertical direction, the exhaust hole 130 is located above the liquid inlet hole 200. The provision of the exhaust hole 130 avoids the presence of an air segment in the capillary liquid suction channel 100, and the air pressure cannot be discharged, resulting in the capillary phenomenon failing to achieve the effect of liquid suction.

[0060] like Figure 7-10 As shown, the capillary liquid guide atomization unit according to the fourth embodiment of the present invention comprises a housing 10 and an atomization assembly 20 disposed in the housing 10 .

[0061] Among them, at least one liquid inlet hole 200 is provided on the side of the atomizing assembly 20, and a capillary liquid absorption channel 100 is provided between the inner side of the housing 10 and the side where the liquid inlet hole 200 is located, and the length of the capillary liquid absorption channel 100 extends along the height direction of the side of the atomizing assembly 20 where the liquid inlet hole 200 is located. The capillary liquid absorption channel 100 is connected to the liquid inlet hole 200; and the opposite ends of the capillary liquid absorption channel 100 extend to the upper and lower sides of the liquid inlet hole 200 respectively, and the liquid is absorbed to the liquid inlet hole 200 by capillary action. The liquid entering the liquid inlet hole 200 is then heated and atomized by the atomizing assembly to form smoke.

[0062] The width d of the capillary liquid absorption channel 100 is 0.1 mm to 3 mm. The number of the capillary liquid absorption channels 100 is arranged corresponding to the liquid inlet holes 200 .

[0063] In this embodiment, the housing 10 is a cylindrical structure as a whole, one end of which is closed to form a closed end 110, and the atomizer assembly 20 is positioned on the inner end surface of the closed end 110. The outer peripheral side surface of the atomizer assembly 20 is not connected to the inner wall surface of the housing 10.

[0064] Specifically, the inner wall surface of the housing 10 includes a first wall surface 101 that is opposite to the side surface of the atomizer assembly 20 where the liquid inlet hole 200 is located through a gap, and the capillary liquid suction channel 100 is formed between the side surface and the first wall surface 101. The first wall surface 101 can be a flat surface, or a surface that is consistent with the side shape of the atomizer assembly 20, such as a curved surface or a flat surface.

[0065] The other inner wall surface of the shell 10 is a second wall surface 102 which is spaced opposite to the other side surfaces of the atomizer assembly 20 ; the space between the other side surfaces of the atomizer assembly 20 and the second wall surface 102 forms a liquid storage cavity 103 which is connected to the capillary liquid suction channel 100 .

[0066] Furthermore, a support seat 120 is provided on the inner end surface of the closed end 110 of the housing 10, and the atomizer assembly 20 is disposed on the support seat 120. A gap 104 is left between the outer periphery of the support seat 120 and the inner wall surface of the housing 10, and the gap 104 is connected to the liquid storage chamber 103.

[0067] The closed end 110 and the support base 120 are further provided with a channel hole 105 penetrating through the opposite ends thereof and the closed end 110 . The channel hole 105 is connected to and communicates with the air flow hole 210 on the atomizing assembly 20 .

[0068] The atomizing assembly 20 can refer to the atomizing assembly 20 of the first embodiment or the second embodiment, and will not be described again. The lower end of the sleeve 22 of the atomizing assembly 20 can be sleeved and matched on the upper end of the support seat 120, and tightly fit on the support seat 120.

[0069] like Fig.11 As shown, the capillary liquid guide atomization unit of the fifth embodiment of the present invention comprises a housing 10 and an atomization assembly 20 disposed in the housing 10. The housing 10, the atomization assembly 20 and the capillary liquid suction channel 100 are referred to the fourth embodiment above and will not be described again.

[0070] The present embodiment is different from the fourth embodiment described above in that a raised step 106 is provided on the first wall surface 101 of the housing 10, and the capillary liquid suction channel 100 is formed between the side surface of the atomizing assembly 20 where the liquid inlet hole is located and the step 106. The surface of the step 106 can be a flat surface, or a surface that is consistent with the side surface shape of the atomizing assembly 20, such as a curved surface or a flat surface.

[0071] In the fourth and fifth embodiments, the capillary absorption channel 100 is mainly formed between surfaces, and at least three surfaces of the capillary absorption channel 100 are open and connected to the liquid storage chamber 103, so that the three open surfaces of the capillary absorption channel 100 can absorb liquid by capillary action.

[0072] refer to Figure 3 The atomization device of the present invention includes a capillary liquid conduction atomization unit and a liquid storage tank 300 arranged on the periphery of the capillary liquid conduction atomization unit.

[0073] In one embodiment, the capillary liquid atomization unit is Figure 1 , Figure 4 or Figure 6 The capillary liquid conduction atomization unit shown. In this embodiment, the atomization device further comprises a housing, the capillary liquid conduction atomization unit is arranged in the housing, and the liquid storage tank 300 is formed between the housing and the capillary liquid conduction atomization unit, and may be annular.

[0074] In another embodiment, the capillary liquid atomization unit is Figure 7 or Fig.11 The capillary liquid conduction atomization unit shown. In this embodiment, the housing 10 of the capillary liquid conduction atomization unit forms the outer shell of the atomization device, and the liquid storage cavity 103 of the capillary liquid conduction atomization unit forms the liquid storage tank 300 of the atomization device.

[0075] When the atomizer is working, the liquid in the liquid storage tank 300 is absorbed into the capillary liquid absorption channel 100, and then enters the liquid guiding body 21 through the liquid inlet hole 200. After the heating element 23 is powered on and heated, the liquid guided thereto is atomized to form smoke, and the smoke is discharged outward through the air flow hole 210.

[0076] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A capillary liquid atomization unit, characterized in that: Comprising a shell (10) and an atomizing assembly (20) arranged in the shell (10); at least one liquid inlet hole (200) is provided on a side surface of the atomizing assembly (20); and a capillary liquid absorption channel (100) connected to the liquid inlet hole (200) is provided between the inner side of the shell (10) and the side surface where the liquid inlet hole (200) is located; The length of the capillary liquid absorption channel (100) extends along the height direction of the side surface where the liquid inlet hole (200) is located, and the opposite ends of the capillary liquid absorption channel (100) extend respectively to the upper and lower sides of the liquid inlet hole (200), so as to absorb liquid into the liquid inlet hole (200) through capillary action; The housing (10) comprises a cylinder (11) with two opposite open ends, the cylinder (11) being sleeved and fitted onto the outer peripheral side surface of the atomizing assembly (20); The side wall of the barrel (11) opposite to the liquid inlet hole (200) protrudes outwardly relative to the atomizing assembly (20) to form a convex wall (12) extending along the length direction of the barrel (11); the capillary liquid absorption channel (100) is formed between the inner wall surface of the convex wall (12) and the side surface of the atomizing assembly (20); The convex wall (12) is provided with an exhaust hole (130) connected to the capillary liquid absorption channel (100); the exhaust hole (130) is located above the liquid inlet hole (200); The atomizing assembly (20) comprises a liquid guiding body (21), a sleeve (22) sleeved on the outer periphery of the liquid guiding body (21), and at least one heating element (23) arranged in the liquid guiding body (21); the liquid inlet hole (200) is arranged on the sleeve (22); the shell (10) is sleeved on the outer periphery of the sleeve (22) at a position corresponding to the liquid inlet hole (200) on the sleeve (22); and the length of the sleeve (22) is greater than or less than the length of the shell (10).

2. The capillary liquid atomization unit according to claim 1, characterized in that: The outer peripheral shape of the barrel (11) is arranged to correspond to the outer peripheral shape of the atomizing assembly (20), and is circular, polygonal or elliptical.

3. The capillary liquid atomization unit according to claim 1, characterized in that: One end of the housing (10) is closed to form a closed end (110), and the atomization assembly (20) is positioned on an inner end surface of the closed end (110); The inner wall surface of the housing (10) comprises a first wall surface (101) which is opposite to the side surface of the atomizing assembly (20) where the liquid inlet hole (200) is located via a gap, and the capillary liquid absorption channel (100) is formed between the side surface and the first wall surface (101); The other inner wall surface of the shell (10) is a second wall surface (102) spaced opposite to the other side surface of the atomizing assembly (20); the space between the other side surface of the atomizing assembly (20) and the second wall surface (102) forms a liquid storage cavity (103) which is in communication with the capillary liquid absorption channel (100).

4. The capillary liquid atomization unit according to claim 3, characterized in that: A raised step (106) is provided on the first wall surface, and the capillary liquid suction channel (100) is formed between the side surface of the atomization component (20) where the liquid inlet hole (200) is located and the step (106).

5. The capillary liquid atomization unit according to claim 3, characterized in that: A support seat (120) is provided on the inner end surface of the closed end (110) of the shell (10), and the atomization assembly (20) is arranged on the support seat (120); a gap (104) is left between the outer periphery of the support seat (120) and the inner wall surface of the shell (10), and the gap (104) is connected to the liquid storage chamber (103).

6. The capillary liquid atomization unit according to claim 1, characterized in that: The top of the capillary liquid absorption channel (100) is flush with or higher than the top edge of the liquid inlet hole (200); and the bottom of the capillary liquid absorption channel (100) is located below the liquid inlet hole (200).

7. The capillary liquid guide atomization unit according to any one of claims 1 to 6, characterized in that: The liquid-conducting body (21) is provided with air flow holes (210) penetrating two opposite ends thereof, and the heating element (23) is located on the inner wall surface of the air flow hole (210).

8. The capillary liquid conduction atomization unit according to claim 7, characterized in that: The heating element (23) comprises a heating body (231), and two electrode connecting parts (232) connected to one end of the heating body (231) at intervals; one end of the electrode connecting part (232) exposed from the liquid conductive body (21) is externally connected to a power source.

9. The capillary liquid conduction atomization unit according to claim 8, characterized in that: The heating body (231) is in a sheet or spiral shape; the electrode connecting portion (232) is an electrode lead or an electrode contact.

10. An atomizing device, characterized in that: It comprises the capillary liquid conduction atomization unit according to any one of claims 1 to 9, and a liquid storage tank (300) arranged on the periphery of the capillary liquid conduction atomization unit; The bottom of the capillary liquid suction channel (100) of the capillary liquid guide atomization unit is higher than the bottom surface of the liquid storage bin (300).

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